CN217785488U - Gas equipment and gas water heater - Google Patents

Abstract

The utility model discloses a gas equipment and gas heater, include: the shell comprises a frame body and a cover plate, wherein the frame body is provided with a top opening and a front opening; the first component is integrated with the heat exchanger and the smoke hood, the first component is assembled at the top of the frame body and matched with the top opening, and the cover plate is detachably connected with the front side edge of the frame body and the smoke hood; the second part is integrated with a burner and a gas distributing rod, and is assembled in the frame body and positioned at the bottom; the fan part is assembled on the bottom plate of the frame body and is positioned outside the frame body. According to the utility model discloses gas equipment, through installing a plurality of parts are integrated in a portion, through a portion dress integral erection in the framework, reduced the assembly process between the part, concentrate moreover and install in the framework, operating mode is comparatively simple, has improved whole assembly efficiency, and convenient maintenance is favorable to automated production.

Description

Gas equipment and gas water heater

Technical Field

The utility model relates to a water heater technical field, more specifically relates to a gas equipment and gas heater.

Background

In the related art, a burner unit, a heat exchanger unit, a hood unit, and a blower unit of a gas appliance are generally independent from each other, and are assembled from a plurality of directions and at a plurality of angles, and a large number of screws are required for fixing and sealing. The complex assembly mode is difficult to realize automatic production, low in production efficiency and inconvenient to maintain after sale.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of above-mentioned technical problem to a certain extent at least.

Therefore, the utility model provides a gas equipment, this gas equipment's assembly efficiency is high, and convenient maintenance is favorable to automated production.

The utility model also provides a gas heater of having above-mentioned gas equipment.

According to utility model embodiment, gas equipment includes: a housing including a frame and a cover plate, the frame having a top opening and a front opening; the heat exchanger and the smoke hood are assembled at the top of the frame body and matched with the top opening, and the cover plate is detachably connected with the front side edge of the frame body and the smoke hood; the combustor and the gas distributing rod are assembled in the frame body and are positioned at the bottom; and the fan assembly is assembled on the bottom plate of the frame body and is positioned outside the frame body.

According to the utility model discloses gas equipment, through installing a plurality of parts are integrated in a portion, through a portion dress integral erection in the framework, reduced the assembly process between the part, concentrate moreover and install in the framework, operating mode is comparatively simple, has improved whole assembly efficiency, and convenient maintenance is favorable to automated production.

The utility model discloses an in some embodiments, the framework includes left side board, posterior lateral plate, right side board and bottom plate, the left side board with the height of right side board is less than the height of posterior lateral plate, the left side and the right side of heat exchanger clamp respectively in the left side board with on the right side board.

In some embodiments of the present invention, the lower edge of the left side end plate of the heat exchanger and the upper edge of the left side plate of the frame body are provided with a first hook, and the other is provided with a first flange engaged with the first hook, and correspondingly, the lower edge of the right side end plate of the heat exchanger and the upper edge of the right side plate of the frame body are provided with a second hook, and the other is provided with a second flange engaged with the second hook.

In some embodiments of the present invention, the rear plate of the smoke cover is provided with a plurality of first positioning through holes, and correspondingly, the upper portion of the rear side plate of the frame body is provided with a plurality of second positioning through holes, and the first positioning through holes and the second positioning through holes pass through the screw locking.

In some embodiments of the utility model, the top surface of the petticoat pipe is provided with a third flange extending upwards, the cover plate is provided with a third hook, and the third flange is inserted into the third hook.

The utility model discloses an in some embodiments, the preceding side edge of framework is equipped with a plurality of location turn-ups, correspondingly, be equipped with a plurality of location breachs on the apron, location turn-ups card is located in the location breach.

In some embodiments of the present invention, the lower side of the cover plate is provided with a third positioning through hole, and correspondingly, the front side of the bottom plate is provided with a fourth positioning through hole, and the third positioning through hole and the fourth positioning through hole are locked by a screw.

In some embodiments of the present invention, a fan interface is disposed on the bottom plate, an air outlet of the fan assembly corresponds to the fan interface, a first positioning lug is disposed on the fan assembly, a second positioning lug is disposed on the bottom surface of the bottom plate in a downward extending manner, and the first positioning lug and the second positioning lug are locked by a screw.

In some embodiments of the present invention, the top of the fan unit is provided with a positioning strip, the bottom plate is provided with a strip-shaped positioning hole, and the positioning strip is inserted into the strip-shaped positioning hole.

In some embodiments of the present invention, the first cooling insulation board is disposed on the inner wall of the left side and/or the inner wall of the right side of the frame body at an interval, so as to form a first air cooling channel, the first air cooling channel is communicated with the air outlet of the fan unit, and at least a part of the air flow in the first air cooling channel blows to the left end and the right end of the heat exchanger.

In some embodiments of the present invention, the first air-cooled channel has an inlet at a bottom thereof and an outlet at a top thereof.

In some embodiments of the present invention, the rear side plate of the frame body and/or the cover plate are respectively provided with a second cooling insulation plate at intervals, so as to form a second air cooling channel communicated with the air outlet of the fan unit, and a part of the second air cooling channel wraps around the periphery of the heat exchanger.

In some embodiments of the present invention, the second cooling heat insulation board has a plurality of intercepting sections, the intercepting section has a transverse extending section and a longitudinal extending section, the transverse extending section extends from inside to outside, the starting end of the longitudinal extending section is connected with the tail end of the transverse extending section, the longitudinal extending section is folded and extends upwards, and each intercepting section has the outlet of the second air cooling channel.

In some embodiments of the present invention, each of the intercepting sections has an outlet formed in the lateral extension section and an opening direction is upward.

In some embodiments of the invention, the inlet is below the combustion face of the burner.

According to utility model embodiment, gas equipment includes: the heat exchanger, the combustor and the gas distribution rod are arranged in the shell to form a closed combustion heat exchange chamber in the shell; the fan part is assembled on the bottom plate of the frame body and is positioned outside the frame body; the cooling heat insulation plates are connected to the inner wall of the shell at intervals, and part of air input by the fan device forms airflow between the inner wall of the shell and the cooling heat insulation plates to form an air cooling channel.

According to the utility model discloses gas equipment can reduce the external heat radiation of casing, reduces the heat and receives the heat loss to gas equipment's spare part's harm, avoids gas equipment's electronic components.

In some embodiments of the present invention, the left side plate and/or the right side plate of the frame body are respectively provided with the first cooling insulation plate at an interval, so as to form the first air cooling channel, the bottom of the first air cooling channel has an inlet, and the top of the first air cooling channel has an outlet.

In some embodiments of the present invention, the first cooling insulation board extends to the bottom of the burner toward the lower part of the left and/or right side plate of the frame body, so that the inlet of the first air cooling channel is lower than the bottom surface of the burner or is flush with the bottom surface of the burner.

In some embodiments of the present invention, a portion of the first cooling insulation panel between the inlet and the outlet of the first air-cooling passage is a continuous panel.

In some embodiments of the present invention, the top outlet of the first air-cooled channel is close to the bottom of the heat exchanger, and the air flow in the first air-cooled channel at least partially blows to the left and right ends of the heat exchanger.

In some embodiments of the present invention, at least one end edge of the first cooling insulation board is bent and extended to form a first bent portion extending outward, the first bent portion extends outward to form a first connecting portion, and the first connecting portion is attached to the left side board or the right side board of the frame body.

In some embodiments of the present invention, the first bent portion of the lower end of the first cooling heat insulation board is provided with an inlet of the first air cooling passage.

In some embodiments of the present invention, the inlet of the first air-cooling passage includes a plurality of bar-shaped holes arranged along the front-rear direction at intervals at the first bending portion.

In some embodiments of the present invention, at least one reinforcing portion protruding outward is provided on the left side plate and/or the right side plate of the frame body to form a notch facing the groove of the first air-cooling passage at the inner side, and the groove is strip-shaped and extends in the vertical direction.

In some embodiments of the present invention, the rear side plate of the frame body and/or the cover plate are respectively provided with a second cooling insulation plate at an interval, so as to form a second air cooling channel communicated with the air outlet of the fan unit, and the inlet of the second air cooling channel is higher than the inlet of the first air cooling channel.

In some embodiments of the present invention, the second cooling insulation panel extends toward the bottom of the rear side panel of the frame body, a gap between the second cooling insulation panel and the rear side panel of the frame body forms a back air inlet of the second air cooling channel, and the back air inlet is close to the bottom side panel of the burner.

In some embodiments of the present invention, the second cooling insulation board extends toward the lower portion of the cover board, the second cooling insulation board and the gap between the cover boards form the front air inlet of the second air cooling channel, and the front air inlet of the second air cooling channel is higher than the height of the back air inlet.

In some embodiments of the present invention, the second cooling insulation panel extends to a side portion of the heat exchanger toward a rear side plate of the frame body and/or a top portion of the cover plate to form an insulation portion on front and rear sides of the heat exchanger.

In some embodiments of the present invention, the second cooling and heat insulating plate has at least one cut-off section, the cut-off section has a transverse extending section and a longitudinal extending section, the transverse extending section extends from inside to outside, the starting end of the longitudinal extending section is connected with the tail end of the transverse extending section, the longitudinal extending section is bent to extend upwards in an inclined manner, and each cut-off section has an outlet of the second air cooling channel.

In some embodiments of the present invention, the second cooling insulation panel has a plurality of the intercepting sections arranged in a longitudinal direction and connected in sequence.

In some embodiments of the present invention, the outlet of the second air-cooling channel comprises a plurality of bar-shaped holes spaced apart from each other along the left-right direction.

In some embodiments of the present invention, the connection between the transversal extending section and the longitudinal extending section of the intercepting section located at the top is in contact with the corresponding cover plate or the rear side plate of the frame body, and the connection between the transversal extending section and the longitudinal extending section of the intercepting section is spaced from the corresponding cover plate or the rear side plate of the frame body.

In some embodiments of the present invention, at least one reinforcing portion protruding outward is provided on the rear side plate of the frame body to form a groove facing the second air-cooling channel at the inner side, and the groove is strip-shaped and extends in the up-down direction along the length direction.

In some embodiments of the present invention, the heat insulating portion is located on an upper side of the second air-cooling passage and connected to the longitudinally extending section of the intercepting section located uppermost.

In some embodiments of the present invention, the heat insulation portion is an air heat insulation layer, and the air heat insulation layer is not communicated with the second air cooling channel.

In some embodiments of the present invention, the second cooling insulation panel has a supporting protrusion, and the supporting protrusion is located in the second air-cooling channel and abuts against the rear side plate of the frame body or the cover plate.

In some embodiments of the present invention, the lower end of the second cooling heat insulation board, which is engaged with the cover plate, is bent to extend to form a second bent portion extending outward and a second connecting portion extending downward, the second bent portion is provided with the front side air inlet of the second air cooling channel, and the second connecting portion is attached to the cover plate.

In some embodiments of the present invention, the burner has a bottom side plate, the rear end of the bottom side plate is provided with a downward extending downward flange, the downward flange is attached to the rear side plate of the frame body, the lower end of the second cooling and heat insulating plate is matched with the bottom side plate, the bottom side plate is provided with a through hole, and the through hole is communicated with the inlet of the second air cooling channel.

In some embodiments of the present invention, the left side plate, the right side plate and the rear side plate of the frame body are integrally formed into a frame body, the bottom plate of the frame body is connected to the bottom of the frame body, and the cover plate is connected to the frame body and the bottom plate of the frame body.

In some embodiments of the present invention, the front side edge of the left side plate and the front side edge of the right side plate of the frame body are provided with frame body flanges extending leftward or rightward, the bottom plate of the frame body is provided with bottom plate flanges extending upward or downward, and the cover plate is connected with the frame body flanges and the bottom plate flanges.

In some embodiments of the present invention, the top edge of the rear side plate of the frame body is a flat plate extending in the longitudinal direction, and the hood is connected to the flat plate.

In some embodiments of the present invention, soundproof cotton is disposed between the frame body and the heat exchanger and the smoke cover.

In some embodiments of the present invention, a portion of the cooling insulation board corresponding to the left side board or the right side board of the frame body is provided with a mounting hole for mounting an ignition needle; and the part of the cooling heat insulation plate corresponding to the cover plate is provided with a fire observation hole.

According to the utility model discloses gas water heater includes according to the utility model discloses the gas equipment of embodiment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded view of a gas fired appliance according to some embodiments of the present invention;

fig. 2 is a perspective view of a gas-fired device according to some embodiments of the present invention;

fig. 3 is a perspective view of a heat exchanger and smoke cage according to some embodiments of the present invention;

fig. 4 is a perspective view of a frame according to some embodiments of the present invention;

FIG. 5 is an enlarged view at A in FIG. 4;

fig. 6 is a perspective view of a cover plate according to some embodiments of the present invention;

fig. 7 is a perspective view of a fan assembly according to some embodiments of the present invention;

fig. 8 is an angled cross-sectional view of a gas-fired device according to some embodiments of the present invention;

fig. 9 is a cross-sectional view of another angle of a gas-fired device according to some embodiments of the present invention;

FIG. 10 is an enlarged view at B in FIG. 9;

fig. 11 is an enlarged view at C in fig. 9.

Reference numerals:

a gas appliance 100;

a housing 10;

a frame body 11; a top opening 111; a front opening 112; a left side plate 113; a first flange 1131; a right side plate 114; a second flange 1141; mounting holes 1142; a base plate 115; a fourth positioning via 1151; second positioning lugs 1152; a strip-shaped positioning hole 1153; a fan interface 1154; a notch 1155; a rear side plate 116; a second positioning via 1161; positioning a flange 117; a first cooling shield 118; a first bent portion 821; a first connection portion 822; a second cooling insulation panel 119; a shut-off segment 1191; a laterally extending segment 11911; a longitudinally extending segment 11912; the support projection 83; a second bent portion 841; a second connection 842; a frame body flange 16; a bottom plate flanging 17; a reinforcing portion 18;

a cover plate 12; a third hook 121; a positioning notch 122; a third positioning through hole 123; a fire observation hole 124;

a first member 20;

a heat exchanger 21; a left end plate 211; a first hook 2111; a right end plate 212; a second hook 2121; a hood 22; a rear plate 221; a first positioning through-hole 2211; a third flange 222;

a second member 30; a burner 31; a bottom side plate 61; a through hole 521; a lower turned-over edge 62; a gas distributing rod 32;

a fan assembly 40; a first positioning lug 41; a positioning strip 42; an air outlet 43;

a first air-cooling passage 51; an inlet 511 of the first air-cooling passage 51; an outlet 512 of the first air-cooling passage 51; a second air-cooling passage 52; an outlet 522 of the second air-cooling passage 52; and a heat insulating part 53.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-11, a gas-fired device 100 according to an embodiment of the present invention is described. The gas appliance 100 generally includes a casing 10, a fan section 40, and a cooling insulation panel. The heat exchanger 21, the hood 22, the burner 31 and the gas distributing rod 32 of the gas appliance 100 are assembled on the housing 10, for example, the heat exchanger 21 and the hood 22 form the first component 20, the burner 31 and the gas distributing rod 32 form the second component 30, and the first component 20, the second component 30 and the fan assembly 40 are respectively assembled on the housing 10 to form a complete gas appliance product structure.

Specifically, as shown in fig. 1, the housing 10 includes a frame 11 and a cover plate 12, the frame 11 having a top opening 111 and a front opening 112. That is, the frame body 11 constitutes a basic skeleton of the gas appliance 100, in which the top and the front of the housing 10 are opened, facilitating assembly of the respective parts.

The heat exchanger 21 and the hood 22 are disposed on the frame 11 to close the top opening 111, and the heat exchanger 21, the burner 31 and the gas distributing rod 32 are disposed in the casing 10 to form a closed combustion chamber (or combustion heat exchange chamber) in the casing 10. For example, the first component 20 integrates the heat exchanger 21 and the smoke cage 22, so that the first component 20 is assembled on the top of the frame 11 to achieve the heat exchange and smoke exhaust functions of the gas appliance 100, it can be understood that, in order to achieve the structural integrity and the sealing performance of the gas appliance, the first component 20 is preferably shaped to match the top opening 111, that is, the top opening 111 of the frame 11 is substantially closed when the first component 20 is assembled on the frame 11, thereby reducing the heat loss and the exhaust leakage of the exhaust gas during the operation of the gas appliance 100, and improving the energy consumption and the safety.

Further, the second member 30 is integrated with the burner 31 and the gas distributing rod 32, and the second member 30 is fitted in the frame 11 at the bottom. The fan unit 40 is mounted on the bottom plate 115 of the housing 11 and is located outside the housing 11. The fan unit 40 blows outside air into the frame 11, the gas distributing rod 32 introduces gas into the burner 31, and the air and the gas are combusted in the burner 31 to generate high-temperature flue gas.

That is, the heat exchanger 21 and the hood 22 for exchanging heat and discharging smoke are provided at the upper portion of the frame 11, and the burner 31 and the gas distributing rod 32 for burning air-fuel gas (mixed gas of air and gas) and the fan unit 40 for blowing air are provided at the bottom portion of the frame 11.

In this embodiment, the assembly process of the gas appliance 100 may be roughly as follows, first, the first member 20 is assembled on the top of the frame 11, then the second member 30 is assembled in the frame 11, then the fan assembly 40 is assembled on the bottom of the frame 11, and finally the cover plate 12 is covered on the front side of the frame 11. Of course, the above is only illustrative and not limiting of the assembling process of the gas appliance 100, and the gas appliance 100 further includes the assembling of the housing and the connection of other pipes and lines, which will not be described in detail herein.

For the convenience of subsequent maintenance, the cover plate 12 is detachably connected with the front side edge of the frame body 11 and the smoke cage 22. The cover plate 12 and the frame 11 can be connected by one or more of clamping connection and screw connection.

In short, according to the utility model discloses gas equipment 100, through with a plurality of parts integration on a portion dress, through a portion dress integral erection on framework 11, reduced the assembly process between the part, concentrate moreover and install on framework 11, the operating mode is comparatively simple, has improved whole assembly efficiency, convenient maintenance, is favorable to automated production.

In some embodiments of the present invention, as shown in fig. 1, 2 and 4, the cooling insulation boards are spaced apart from each other on the inner wall of the housing 10, and a part of the air input from the fan unit 40 can form an air flow between the inner wall of the housing 10 and the cooling insulation boards to form an air cooling channel. The air current in the forced air cooling passageway can cool down the temperature of framework 11 to reduce framework 11 and to the outside heat radiation, reduce the heat and to the harm of gas equipment 100's spare part, avoid gas equipment 100's electronic components to receive the heat loss.

In some embodiments of the present invention, as shown in fig. 1, 2 and 4, the frame 11 includes a left side plate 113, a rear side plate 116, a right side plate 114 and a bottom plate 115, the left side plate 113 and the right side plate 114 are lower than the rear side plate 116, and the left side and the right side of the first component 20 are respectively clamped on the left side plate 113 and the right side plate 114. That is, the left side of the first member 20 is connected to the left side plate 113 of the frame 11, and the right side of the first member 20 is connected to the right side plate 114 of the frame 11, so that the rear side plate 116 of the frame 11, the left side of the first member 20, and the right side of the second member 30 are engaged with each other and surround in a circumferential direction, lean against each other, and have good stability.

In an alternative embodiment, one of the lower edge of the left side plate 211 of the heat exchanger 21 and the upper edge of the left side plate 113 of the frame 11 is provided with a first hook 2111, and the other is provided with a first flange 1131 cooperating with the first hook 2111, and correspondingly, one of the lower edge of the right side plate 212 of the heat exchanger 21 and the upper edge of the right side plate 114 of the frame 11 is provided with a second hook 2121, and the other is provided with a second flange 1141 cooperating with the second hook 2121. In the assembling process, the first component 20 is fastened to the frame 11 by the fastening of the first hook 2111 and the first flange 1131, and the fastening of the second hook 2121 and the second flange 1141.

In order to improve the stability of the first member 20 in cooperation with the frame 11, the rear plate 221 of the smoke cage 22 is provided with a plurality of first positioning through holes 2211, and correspondingly, the upper portion of the rear side plate 116 of the frame 11 is provided with a plurality of second positioning through holes 1161, and the first positioning through holes 2211 and the second positioning through holes 1161 are locked by screws. That is, after the first member 20 is fastened to the frame 11, the first positioning through hole 2211 and the second positioning through hole 1161 are screwed from the front side of the frame 11.

Alternatively, the second member 30 may be assembled by first locking the gas distributing rod 32 to the burner 31 with screws, and then integrally locking the second member 30 to the frame 11, and the bottom plate 115 of the frame 11 may be provided with a notch 1155 for the gas distributing rod 32 to pass through, as shown in fig. 4, and the front side edge of the bottom plate 115 is provided with a notch 1155. Thus, the gas distributing rod 32 is conveniently connected with an external gas pipe.

After both the first member 20 and the second member 30 are assembled to the frame 11, the cover 12 may be closed to the front side of the frame 11 to close the front opening 112 of the frame 11. As shown in fig. 1 to 4, the top surface of the smoke cage 22 is provided with a third flange 222 extending upward, the cover plate 12 is provided with a third hook 121, and the third flange 222 is inserted into the third hook 121. The front edge of the frame 11 is provided with a plurality of positioning flanges 117, correspondingly, the cover plate 12 is provided with a plurality of positioning notches 122, and the positioning flanges 117 are clamped in the positioning notches 122. When the cover plate 12 is assembled, the third flange 222 is first abutted with the third hook 121, and then the cover plate 12 is pulled down to make the positioning flange 117 snap into the positioning notch 122, so as to limit the positioning of the cover plate 12 in the up-down direction and the left-right direction.

Further alternatively, as shown in fig. 1, 2 and 4, the lower side of the cover plate 12 is provided with a third positioning through hole 123, correspondingly, the front side of the bottom plate 115 is provided with a fourth positioning through hole 1151, and the third positioning through hole and the fourth positioning through hole 1151 are locked by screws. Therefore, the lower side of the cover plate 12 is firmly locked on the frame body 11, the sealing performance between the cover plate 12 and the frame body 11 is improved, and heat and air flow are prevented from being lost outwards.

In some embodiments of the present invention, a fan interface 1154 is disposed on the bottom plate 115, an air outlet of the fan assembly 40 corresponds to the fan interface 1154, a first positioning lug 41 is disposed on the fan assembly 40, a second positioning lug 1152 is disposed on a bottom surface of the bottom plate 115 and extends downward, and the first positioning lug 41 and the second positioning lug 1152 are locked by a screw. Referring to fig. 1, 2 and 7, when the fan unit 40 is assembled, the air outlet of the fan unit 40 may be first abutted against the fan interface 1154 on the bottom plate 115, at this time, the first positioning lug 41 and the second positioning lug 1152 are also abutted against each other, and then the first positioning lug 41 and the second positioning lug 1152 may be locked by screws from the front side of the frame 11.

In a further alternative example, a positioning bar 42 is disposed on the top of the fan assembly 40, a bar-shaped positioning hole 1153 is disposed on the bottom plate 115, and the positioning bar 42 is inserted into the bar-shaped positioning hole 1153. In assembling, the positioning bar 42 may be inserted into the bar-shaped positioning hole 1153 in an inclined manner, and then the positioning bar 42 is received on the top surface of the bottom plate 115, thereby further improving the assembling stability of the fan unit 40 and the frame 11.

The assembly process of the gas appliance of the above embodiment may be as follows, (1) first, the burner is inserted into the housing from the front opening of the housing, and is connected and fixed to the housing by the screw. (2) The gas distributing rod is inserted into the combustor from the front opening of the frame body and is fixedly connected with the combustor through screws. (3) The first member part is inserted into the frame body from the front opening of the frame body, and 2-4 screws are driven from the front side for fixing. The first clamping hook and the second clamping hook on the left end plate and the right end plate of the heat exchanger are respectively buckled with the first flanging and the second flanging on the left side and the right side of the frame body. (4) And firstly, the third turnup on the smoke hood is wrapped by the third clamping hook on the top of the cover plate. And then the cover plate slides downwards until the positioning notches at the left side and the right side of the cover plate are buckled with the positioning notches on the frame body. And finally, fixing the cover plate and the bottom of the frame body through screws to realize complete constraint. (5) And inserting the positioning strip on the right side of the fan assembly into the strip-shaped positioning hole on the fan interface, and fixing the first positioning lug and the second positioning lug from the front side through screws to finish the assembly and fixation of the fan.

In some embodiments of the present invention, as shown in fig. 8, the left side plate 113 and/or the right side plate 114 of the frame 11 are respectively provided with a first cooling heat insulation plate 118 at intervals, so as to form a first air-cooling channel 51, the first air-cooling channel 51 is communicated with the air outlet of the blower unit 40, and at least a part of the air flow in the first air-cooling channel 51 blows towards the left end and the right end of the heat exchanger 21. In this way, the first air cooling passage 51 introduces a part of the cool air sucked by the fan unit 40 into the two ends of the heat exchanger 21, and continuously cools the two ends of the heat exchanger 21, so as to reduce the heat radiated to the outside by the left end plate 211 and the right end plate 212 of the heat exchanger 21, and avoid the heat loss on the electronic components of the gas appliance 100.

Further, the bottom of the first air-cooled duct 51 has an inlet 511, and the top of the first air-cooled duct 51 has an outlet 512. That is, the cold air enters from the bottom and exits from the top, and can be directly blown to the two ends of the heat exchanger 21, so as to form low-temperature airflow layers at the two ends of the heat exchanger 21, continuously cool the two ends of the heat exchanger 21, reduce the heat dissipated from the left end plate 211 and the right end plate 212 of the heat exchanger 21, and avoid the heat loss on the electronic components of the gas appliance 100.

In some embodiments of the present invention, as shown in fig. 8, the first cooling insulation board 118 extends to the bottom of the burner 31 toward the lower portion of the left side plate 113 and/or the right side plate 114 of the frame 11, so that the inlet 511 of the first air-cooling duct 51 is lower than the bottom surface of the burner 31, or the inlet 511 of the first air-cooling duct 51 is flush with the bottom surface of the burner 31. Therefore, the air temperature in the first air-cooling passage 51 can be ensured to be low, and preferably, the air source in the first air-cooling passage 51 is the cold air directly introduced by the fan unit 40. In the process that the cold air flows upwards in the first air cooling channel 51, the temperature of the frame body 11 can be reduced, so that the heat radiation of the frame body 11 to the outside is reduced, and the damage of the heat to the parts of the gas equipment 100 is reduced.

In some embodiments, the inlet 511 of the first air-cooling passage 51 is lower than the bottom side plate 61 of the burner 31, so that the first air-cooling passage 51 directly communicates with the chamber between the burner 31 and the bottom plate 115 of the frame 11, and thus the air in the first air-cooling passage 51 is the cold air directly introduced by the fan assembly 40, further improving the cooling effect.

In some embodiments of the present invention, as shown in fig. 8, the frame body 11 and the cover plate 12 cooperate to define a combustion chamber, the burner 31 and the heat exchanger 21 are disposed in the combustion chamber, and the combustion chamber includes a first chamber and a second chamber, wherein the first chamber is located between the bottom side plate 61 of the burner 31 and the bottom plate 115 of the frame body 11, and the second chamber is located between the burner 31 and the heat exchanger 21, so that the first chamber and the second chamber are both located between two first cooling insulation plates 118 cooperating with the left side plate 113 and the right side plate 114 of the frame body 11. And the air outlet of the fan unit 40 is communicated with the middle part of the first chamber, and the air outlet of the fan unit 40, the first chamber, the burner 31, the second chamber and the heat exchanger 21 are sequentially arranged from bottom to top.

The corresponding first air-cooling channel 51 extends from bottom to top, so that the inlet 511 of the first air-cooling channel 51 is communicated with the first chamber, and the outlet 512 of the first air-cooling channel 51 is communicated with the top of the second chamber. Part of the airflow entering the first chamber may flow upwards through the first air-cooled channel 51 and to the top of the second chamber.

On the one hand, the gas in the first cavity is the cold air that directly flows in by the air outlet of fan portion dress 40, first air-cooled passageway 51 is direct and first cavity intercommunication, the air source that makes in the first air-cooled passageway 51 is the cold air that fan portion dress 40 directly introduced, the in-process that the cold air upwards flows in first air-cooled passageway 51, can cool down the temperature of framework 11, thereby reduce framework 11 and to outer heat radiation, reduce the harm of heat to the spare part of gas equipment 100.

On the other hand, the outlet 512 of the first air-cooling channel 51 directly extends to the top of the second chamber, so that the coverage of the first air-cooling channel 51 in the longitudinal direction of the frame 11 is wider, the effect of reducing heat radiation is better, furthermore, the distance between the outlet 512 of the first air-cooling channel 51 and the end part of the heat exchanger 21 is smaller, the airflow blown out by the outlet 512 of the first air-cooling channel 51 can be blown more and more sufficiently to the bottoms of the left end plate 211 and the right end plate 212 of the heat exchanger 21, so as to improve the effect of avoiding the heat of high-temperature flue gas from approaching the areas of the left end plate 211 and the right end plate 212, the effect of reducing the thermal fatigue of the heat exchange tube of the heat exchanger 21 is better, the effect of avoiding the weld seam generated between the heat exchange tube and the left end plate 211 and the right end plate 212 from generating cracks and preventing the heat exchange tube from water seepage is better.

In some embodiments of the present invention, as shown in fig. 8, the portion of the first cooling insulation panel 118 between the inlet 511 and the outlet 512 of the first air-cooling duct 51 is a continuous panel. In other words, the outlet 512 of the first air-cooling duct 51 is not provided on the first cooling insulation board 118 from the first chamber to the top of the second chamber. The distance between the cover plate 12 and the rear plate 116 of the frame 11 and the fire row of the burner 31 is smaller than the distance between the left side plate 113 and the right side plate 114 of the frame 11 and the fire row of the burner 31, for example, the distance between the cover plate 12 and the rear plate 116 of the frame 11 and the fire row of the burner 31 is generally smaller than 1cm, and the distance between the left side plate 113 and the right side plate 114 of the frame 11 and the fire row of the burner 31 is generally larger than 10cm; moreover, the combustion surfaces corresponding to the cover plate 12 and the rear plate 116 of the frame 11 are smaller than the combustion surfaces corresponding to the left side plate 113 and the right side plate 114 of the frame 11, so that the temperature rise is faster. The temperatures of the left and right side plates 113 and 114 of the frame 11 are lower with respect to the cover plate 12 and the rear side plate 116 of the frame 11.

The outlet 512 of the first air-cooling channel 51 is not arranged in the middle of the first cooling heat insulation plate 118 corresponding to the left side plate 113 and the right side plate 114 of the frame 11, only the outlet 512 of the first air-cooling channel 51 is arranged at the top, combustion can be stabilized, meanwhile, the temperature of the left side plate 113 and the temperature of the right side plate 114 can be effectively reduced by the cold air flowing in the first air-cooling channel 51 through the heat convection principle, and the air in the first air-cooling channel 51 can flow out from the outlet 512 at the top to directly blow to the two ends of the heat exchanger 21, so that low-temperature airflow layers are formed at the two ends of the heat exchanger 21, the two ends of the heat exchanger 21 are continuously cooled, heat radiated outwards from the left end and the right end of the heat exchanger 21 is reduced, and the electronic components of the gas equipment 100 are prevented from being subjected to heat loss.

In some embodiments, as shown in fig. 8, the left side plate 113 of the frame 11 is spaced apart from the upper end edge of the corresponding first cooling and heat insulating plate 118 to define the outlet 512 of the corresponding first air-cooling channel 51, that is, the outlet 512 of the first air-cooling channel 51 is formed as an elongated opening extending in the front-rear direction and is located at the top of the first cooling and heat insulating plate 118, so as to prevent the airflow in the first air-cooling channel 51 from directly blowing the flame in the second chamber, and ensure stable combustion of the flame.

In some embodiments, as shown in fig. 8, the right side plate 114 of the frame 11 is spaced apart from the upper end edge of the corresponding first cooling and heat insulating plate 118 to define the outlet 512 of the corresponding first air-cooling channel 51, that is, the outlet 512 of the first air-cooling channel 51 is formed as an elongated opening extending in the front-rear direction and is located at the top of the first cooling and heat insulating plate 118, so as to prevent the airflow in the first air-cooling channel 51 from directly blowing the flame in the second chamber, and ensure stable combustion of the flame.

In some embodiments of the present invention, as shown in fig. 8, the top outlet 512 of the first air-cooling duct 51 is close to the bottom of the heat exchanger 21, and the airflow of the first air-cooling duct 51 is at least partially blown to the left and right ends of the heat exchanger 21. Therefore, low-temperature airflow layers are formed at the two ends of the heat exchanger 21, the two ends of the heat exchanger 21 are continuously cooled, heat radiated to the outside by the left end plate 211 and the right end plate 212 of the heat exchanger 21 is reduced, and heat loss of electronic components of the gas equipment 100 is avoided.

In some embodiments of the present invention, as shown in fig. 4 and 5, at least one end edge of the first cooling insulation panel 118 is bent to form a first bent portion 821 extending outward. The first bent portion 821 enables the first cooling insulation panel 118 to be spaced apart from the corresponding left side panel 113 or right side panel 114 by a certain distance to ensure the flow area of the first air-cooling passage 51, while the outer end of the first bent portion 821 can be engaged with the corresponding left side panel 113 or right side panel 114 to ensure the sealing of the first air-cooling passage 51.

In some embodiments, as shown in fig. 4 and 5, the first cooling insulation panel 118 is provided at the front end and the lower end thereof with a first bent portion 821, respectively, for sealing, the upper end thereof is not provided with the first bent portion 821 to form the outlet 512 of the first air-cooling duct 51, and the rear end thereof is provided with the first bent portion 821 or integrally connected with a second cooling insulation panel corresponding to the rear side plate of the frame 11 for sealing.

In some embodiments, as shown in fig. 4 and 5, the first bent portion 821 provided at the lower end of the first cooling heat shield 118 may be provided with an inlet 511 of the first air-cooling passage 51 so that the cool air closer to the blower unit 40 can more smoothly enter the first air-cooling passage 51.

In addition, the at least one first bent portion 821 may further extend outward (i.e., away from the first air-cooling duct 51) to form a first connection portion 822, and the first connection portion 822 is configured to be attached to the left side plate 113 or the right side plate 114 of the frame 11. On the one hand, the sealing effect is improved, and on the other hand, the fixation of the first cooling and heat insulating plate 118 is realized.

For example, the upper end of the first cooling and heat insulating board 118 forms a first connecting portion 822 extending upward, and the lower edge of the first connecting portion 822 is connected to the outer edge of the first bending portion 821; the lower end of the first cooling heat insulation board 118 further forms a first connecting portion 822 extending downward, the upper edge of the first connecting portion 822 is connected to the outer edge of the first bending portion 821, and the first connecting portion 822 is attached to the corresponding left side plate 113 or right side plate 114 of the frame 11, so that the sealing effect is improved, and the first cooling heat insulation board 118 is fixed. For example, the first connecting portion 822 and the corresponding left side plate 113 or right side plate 114 may be fixed by a fastener connection.

In some embodiments, as shown in fig. 2 and 3, the inlet 511 of the first air-cooling duct 51 may include a plurality of strip-shaped holes, and the plurality of strip-shaped holes are arranged at intervals in the first bending portion 821 along the front-rear direction. The structural strength of first kink 821 is guaranteed on the one hand, and on the other hand can increase the air inlet area of first forced air cooling passageway 51, improves the cooling effect.

In some embodiments of the present invention, as shown in fig. 9, the left side plate 113 of the frame 11 is provided with a first flange 1131, the first flange 1131 is used for supporting the left side end plate 211 of the heat exchanger 21, optionally, the first flange 1131 can also be connected with the first hook 2111 of the left side end plate 211, and the outlet 512 of the first air-cooled channel 51 corresponding to the left side plate 113 of the frame 11 can be highly flush with the first flange 1131, so that the air current flowing out of the first air-cooled channel 51 can be blown to the left side end plate 211 of the heat exchanger 21 more directly, and the cooling effect on the left side end plate 211 is better.

In some embodiments of the present invention, as shown in fig. 4 and 8, the right side plate 114 of the frame 11 is provided with a second flange 1141, the second flange 1141 is used for supporting the right side end plate 212 of the heat exchanger 21, optionally, the second flange 1141 can also be connected with the second hook 2121 of the right side end plate 212 in a clamping manner, and the outlet 512 of the first air cooling channel 51 corresponding to the right side plate 114 of the frame 11 can be highly flush with the second flange 1141, so that the air current flowing out from the first air cooling channel 51 can be blown to the right side end plate 212 of the heat exchanger 21 more directly, and the cooling effect on the right side end plate 212 is better.

In some embodiments of the present invention, as shown in fig. 1-4, at least one reinforcing portion 18 may be disposed on the left side plate 113 and/or the right side plate 114 of the frame body 11, and the reinforcing portion 18 protrudes outward to form a groove on the inner side of the left side plate 113 and/or the right side plate 114, and the notch of the groove faces the first air cooling channel 51, that is, is communicated with the first air cooling channel 51. And the groove is strip-shaped, and the length direction of the groove extends along the up-and-down direction.

The structural strength of the left side plate 113 and/or the right side plate 114 of the frame body 11 can be enhanced by arranging the reinforcing part 18, the structure of the frame body 11 is more stable, and the groove formed on the inner side of the reinforcing part 18 can increase the local flow area of the first air cooling channel 51 so as to improve the cooling effect. And the length direction of the groove extends in the up-down direction, i.e. the direction of the air flow in the first air-cooling channel 51 is the same, so as to guide the air flow in the first air-cooling channel 51.

In some embodiments of the present invention, as shown in fig. 8, at least one of the cover plate 12 and the rear side plate of the frame body 11 may further be provided with a second cooling and heat insulating plate 119 at an interval, so as to form a second air-cooling passage 52, and the second air-cooling passage 52 is communicated with the air outlet of the fan unit 40, so that part of the cool air flowing out from the air outlet of the fan unit 40 may enter the second air-cooling passage 52 to cool down from at least one of the front side and the rear side of the combustion chamber.

In addition, as shown in fig. 8, the inlet of the second air-cooling passage 52 is higher than the inlet 511 of the first air-cooling passage 51, so that the inlet 511 of the first air-cooling passage 51 is staggered from the inlet of the second air-cooling passage 52 to avoid interference of the intake air.

For example, the second cooling insulation panel 119 extends toward the bottom of the rear side panel 116 of the frame 11, and a gap between the second cooling insulation panel 119 and the rear side panel 116 of the frame 11 forms a back air inlet of the second cooling channel 52, which is disposed near the bottom side panel 61 of the combustor 31. So that the second cooling channel 52 can guide the air with lower temperature in the lower part of the combustion chamber as much as possible upwards, thereby realizing better cooling effect on the rear side plate 116 of the frame body 11 and better preventing the electronic elements of the gas equipment 100 from being damaged.

For example, the second cooling insulation board 119 extends toward the lower portion of the cover plate 12, and the gap between the second cooling insulation board 11 and the cover plate 12 forms a front air inlet of the second air-cooling channel 52, and the front air inlet of the second air-cooling channel 52 is higher than the back air inlet. So that the downward extending end of the second cooling insulation board 119 engaged with the cover 12 is smaller than the downward extending end of the second cooling insulation board 119 engaged with the rear side plate 116 of the frame 11, and on the premise of ensuring that the temperature of the intake air is low, the interference of the second cooling insulation board 119 located at the front side to the installation of other structures such as the air distributing rod 32 is avoided.

In some embodiments of the present invention, as shown in fig. 9 and 10, the rear side plate 116 and/or the cover plate 12 of the frame body 11 are respectively provided with a second cooling and heat insulating plate 119 at intervals, so as to form a second air-cooling passage 52 communicating with the air outlet of the fan unit 40, and a part of the second air-cooling passage 52 is wrapped around the periphery of the heat exchanger 21. That is, the airflow in the second air-cooling passage 52 continuously cools the front side and the rear side of the gas appliance 100, and the flow path of the airflow in the second air-cooling passage 52 is higher than the top surface of the heat exchanger 21, that is, the heat exchanger 21 can be isolated from the outside to some extent by the second air-cooling passage 52, so as to reduce the heat radiated from the area where the heat exchanger 21 is located to the outside and avoid the heat loss of the electronic components of the gas appliance 100.

In a further alternative example, the second cooling and heat insulating panel 119 has at least one intercepting section 1191, the intercepting section 1191 has a transversely extending section 11911 and a longitudinally extending section 11912, the transversely extending section 11911 extends from the inside to the outside, the starting end of the longitudinally extending section 11912 is connected to the tail end of the transversely extending section 11911, the longitudinally extending section 11912 extends obliquely upward, and each of the intercepting sections 1191 has an outlet 522 of the second air-cooling passage 52. In the embodiment where the intercepting sections 1191 are plural, the second air-cooling passage 52 may divide the air flow by the plural intercepting sections 1191, and divide the air flow upward at each intercepting section 1191, and disperse the air flow in the region of the inner wall surface of the second cooling heat insulation board 119, so that an air film layer is always formed on the inner wall surface of the second cooling heat insulation board 119, and heat is blocked from radiating to the outside through the second cooling heat insulation board 119 and the frame body 11, thereby reducing the influence of the heat on the components of the gas equipment 100.

Further optionally, each of the cutouts 1191 has an outlet 522 formed in the laterally extending section 11911 and opening upwardly. Therefore, the formation of the air film layer on the inner wall surface of the second cooling and heat insulating plate 119 is facilitated all the time, and the heat radiation to the outside is reduced.

In a further alternative embodiment, as shown in fig. 8 and 9, the inlet of the second air-cooling passage 52 is lower than the combustion surface of the combustor 31, thereby ensuring that the air temperature in the second air-cooling passage 52 is lower, and preferably, the air source in the second air-cooling passage 52 is the cold air directly introduced by the fan section 40. In the process that the cold air flows upwards in the air cooling channel, the temperature of the frame body 11 can be reduced, so that the heat radiation of the frame body 11 to the outside is reduced, and the damage of the heat to the parts of the gas equipment 100 is reduced.

In some embodiments of the present invention, as shown in fig. 8 and 9, the combustion chamber includes a first chamber and a second chamber, wherein the first chamber is located between the bottom side plate 61 of the burner 31 and the bottom plate 115 of the frame 11, and the second chamber is located between the burner 31 and the heat exchanger 21, so that the first chamber and the second chamber are both located between two second cooling insulation plates 119 engaged with the cover plate 12 and the rear side plate 116 of the frame 11. And the air outlet of the fan unit 40 is communicated with the middle part of the first chamber, and the air outlet of the fan unit 40, the first chamber, the burner 31, the second chamber and the heat exchanger 21 are sequentially arranged from bottom to top.

The corresponding second air-cooling channel 52 extends from bottom to top, the front air inlet of the second air-cooling channel 52 corresponding to the cover plate 12 is located in the middle of the burner 31, and the rear air inlet of the second air-cooling channel 52 corresponding to the rear side plate 116 of the frame 11 is flush with the bottom side plate 61 of the burner 31, so that the inlets of the two second air-cooling channels 52 are communicated with the first chamber. The outlet 522 of the second air-cooling passage 52 is located at the middle portion, not the top portion, of the second cooling insulation board 119, so that the outgoing air flow can continue to flow upward to facilitate the formation of an air film layer on the inner side of the second cooling insulation board 119. And in some embodiments the outlet 522 of the second air-cooled duct 52 communicates with different regions of the second chamber at a plurality of locations in the longitudinal direction. Part of the airflow entering the first chamber may flow upwardly through the second air-cooled duct 52 and to a plurality of locations in the longitudinal direction of the second chamber.

On one hand, the air in the first chamber is cold air directly flowing in from the air outlet of the fan unit 40, the second air-cooling channel 52 is communicated with the first chamber, so that the air in the second air-cooling channel 52 is the cold air directly introduced by the fan unit 40, and the temperature of the frame 11 can be reduced in the process that the cold air flows upwards in the second air-cooling channel 52, thereby reducing the heat radiation of the frame 11 to the outside and reducing the damage of the heat to the parts of the gas equipment 100; on the other hand, the cover plate 12 and the rear plate 116 of the housing 11 are closer to the fire row of the burners 31 than the left plate 113 and the right plate 114 of the housing 11, and therefore the temperatures of the cover plate 12 and the rear plate 116 of the housing 11 are relatively high. The outlets 522 of the second air cooling channels 52 are arranged at different heights of the second cooling heat insulation boards 119 corresponding to the rear side plates 116 of the cover plate 12 and the frame body 11, so that cold air can be blown out from different heights to ensure that the whole inner surfaces of the second cooling heat insulation boards 119 form air film layers, heat is more comprehensively and effectively blocked from radiating outwards through the second cooling heat insulation boards 119 and the frame body 11, and the influence of the heat on parts of the gas equipment 100 is reduced.

In some embodiments, as shown in fig. 8 and 9, the second cooling insulation board 119 may have a plurality of intercepting sections 1191, the intercepting sections 1191 are arranged in a longitudinal direction and are connected in sequence, and each intercepting section 1191 has an outlet 522 of the second air-cooling channel 52, so as to form the outlets 522 of the second air-cooling channels 52 distributed at intervals in the longitudinal direction, thereby improving the uniformity of cooling and insulation.

In some embodiments, as shown in fig. 8, the outlet 522 of the second air-cooling passage 52 may include a plurality of bar-shaped holes, and the plurality of bar-shaped holes are provided at the intercepting section 1191 at intervals in the left-right direction. On the one hand, the structural strength of the intercepting section 1191 can be ensured, and on the other hand, the flow area of the outlet 522 of the second air cooling channel 52 can be increased, so that a more uniform air film layer can be formed in a larger range in the left-right direction.

In some embodiments of the present invention, at least one reinforcing portion 18 may be disposed on the rear side plate 116 of the frame 11, the reinforcing portion 18 protrudes outward to form a groove on the inner side of the rear side plate 116, and the notch of the groove faces the second air cooling channel 52, i.e., communicates with the second air cooling channel 52. And the groove is strip-shaped, and the length direction of the groove extends along the up-and-down direction.

The reinforcing part 18 is arranged to enhance the structural strength of the rear side plate 116 of the frame body 11, the frame body 11 is more stable in structure, and the groove formed in the inner side of the reinforcing part 18 can increase the local flow area of the second air cooling channel 52, so as to improve the cooling effect. And the length direction of the groove extends in the up-down direction, namely the direction of the air flow in the second air cooling channel 52 is the same, so that the air flow in the second air cooling channel 52 is guided.

In some embodiments of the present invention, as shown in fig. 9 and 10, in the plurality of intercepting sections 1191, the junction of the transverse extension 11911 and the longitudinal extension 11912 of the intercepting section 1191 located uppermost is in contact fit with the corresponding cover plate 12 (or the rear side plate 116 of the frame 11), and the junction of the transverse extension 11911 and the longitudinal extension 11912 of the other intercepting section 1191 is spaced apart from the corresponding cover plate 12 (or the rear side plate 116 of the frame 11).

Taking the three intercepting sections 1191 located inside the cover plate 12 as an example, the cold air flows upward through the second air-cooling channel 52 after entering from the front air inlet of the second air-cooling channel 52; after reaching the outlet 522 of the lowermost intercepting section 1191, part of the cold air is blown to the longitudinally extending section 11912 of the intercepting section 1191 to form an air film layer, and the air film layer is used for isolating high-temperature flue gas to prevent the temperature from radiating to the outside; the rest cold air continuously flows upwards, and after reaching the outlet 522 of the middle intercepting segment 1191, part of the cold air blows to the longitudinally extending segment 11912 of the intercepting segment 1191 to form an air film layer; the remaining cold air continues to flow upward, and after reaching the outlet 522 of the uppermost intercepting section 1191, the intercepting section 1191 is tightly attached to the cover plate 12 to perform the intercepting function, so that all cold air flows out and blows to the longitudinally extending section 11912 of the intercepting section 1191 to form an air film layer. The flow paths and cooling of the other number of the intercepting sections 1191 and the second air-cooled channels 52 disposed inside the rear side plate 116 are similar to those of the above embodiments, and will not be described again.

By the throttle action of the uppermost cutoff segment 1191, the cool air in the second air-cooling passage 52 can be blown out completely, and the heat insulation effect is prevented from being affected by accumulation on the upper portion of the second air-cooling passage 52.

In some embodiments, as shown in fig. 9 and 10, the outlet 522 of the uppermost cutout segment 1191 may be lower than the heat exchanger 21, and the upper end of the longitudinally extending segment 11912 of the cutout segment 1191 may be no lower than the lower end of the heat exchanger 21. Therefore, after the air film layer is formed on the longitudinally extending section 11912, the cold air blown out from the outlet 522 of the intercepting section 1191 can also flow upwards to the end part of the heat exchanger 21 under the guiding action of the longitudinally extending section 11912, so as to cool the end part of the heat exchanger 21, avoid the heat from radiating outwards from the left end part and the right end part of the heat exchanger 21, and further improve the heat insulation effect.

In some embodiments of the present invention, as shown in fig. 9, the second cooling insulation panel 119 extends toward the top of the rear side panel 116 of the frame body 11 and/or the cover panel 12 to the top of the heat exchanger 21 to form the insulation 53 on the front and rear sides of the heat exchanger 21. In the embodiment including the plurality of cutoff sections 1191, as shown in fig. 9, an insulating portion 53 may be further configured between the second cooling insulation panel 119 and at least one of the cover panel 12 and the rear side panel 116 of the frame body 11, the insulating portion 53 being located at an upper side of the second air-cooling passage 52, and the insulating portion 53 being connected to the longitudinally extending section 11912 of the uppermost cutoff section 1191 to simplify the structure and make full use of the space. And the heat insulating portion 53 is located at the outer periphery of the heat exchanger 21. The heat exchanger 21 can be isolated from the outside by the heat insulating portion 53, so that heat radiation from the area where the heat exchanger 21 is located to the outside is reduced, and heat loss on electronic components of the gas appliance 100 is avoided.

In some embodiments, as shown in fig. 9, the insulation 53 is an air insulation layer, which may be defined by the upper portion of the second cooling insulation panel 119 in cooperation with the corresponding cover panel 12 (or rear side panel 116), simplifying the apparatus structure. Specifically, the lower end of the air insulation layer may be a place where the connection between the transverse extension 11911 and the longitudinal extension 11912 of the uppermost cutout 1191 contacts and fits with the corresponding cover plate 12 (or the rear side plate 116) of the frame 11.

In addition, the air insulation layer is not communicated with the second air-cooling passage 52, so that the air flow in the second air-cooling passage 52 is prevented from entering the air insulation layer to influence the formation of the air film layer on the inner side of the second cooling insulation board 119.

In some embodiments of the present invention, as shown in fig. 9 and 11, the second cooling heat insulation board 119 has a supporting protrusion 83, the supporting protrusion 83 is located in the second air-cooling passage 52, and the supporting protrusion 83 abuts against the corresponding rear side plate 116 (or cover plate 12) of the frame body 11, so as to support the second cooling heat insulation board 119 and the rear side plate 116 (or cover plate 12) of the frame body 11, improve structural stability, and prevent the second cooling heat insulation board 119 and the rear side plate 116 (or cover plate 12) of the frame body 11 from deforming to affect the flow area of the second air-cooling passage 52.

In some embodiments, the longitudinal section of the support protrusion 83 in the front-rear direction may be circular, square, triangular, etc., and the longitudinal section has a small extension in the front-rear direction to avoid increasing the wind resistance in the second air-cooling duct 52.

In some embodiments of the present invention, as shown in fig. 9 and 11, at least one end of the second cooling insulation panel 119, which is coupled to the cover plate 12, is bent to extend to form a second bent portion 841 extending outward. The second bent portion 841 allows the second cooling insulation panel 119 to be spaced apart from the corresponding cover plate 12 by a certain distance to secure a flow area of the second air-cooling passage 52, while the outer end of the second bent portion 841 may be engaged with the corresponding cover plate 12 to secure sealing of the second air-cooling passage 52.

In some embodiments, as shown in fig. 9, the left and right ends of the second cooling insulation panel 119 are respectively provided with a second bent portion 841 to achieve sealing. The upper portion of the second cooling insulation panel 119 may abut against the cover plate 12 through the uppermost intercepting section 1191 to achieve sealing, and/or the upper end of the second cooling insulation panel 119 may be provided with a second bent portion 841, and the second bent portion 841 is fittingly sealed with the cover plate 12. Specifically, the second bent part 841 provided at the upper end of the second cooling insulation panel 119 may seal the top of the air insulation layer.

In some embodiments, as shown in fig. 9, the second bent portion 841 of the lower end of the second cooling heat insulation panel 119, which is engaged with the cover plate 12, may be provided with a front side intake of the second air-cooling passage 52, so that the cool air closer to the blower unit 40 can more smoothly enter the second air-cooling passage 52. In addition, a second connecting portion 842 extending downward is further formed at the lower end of the second cooling heat insulation board 119, the upper edge of the second connecting portion 842 is connected with the outer edge of the second bending portion 841, and the second connecting portion 842 is attached to the cover plate 12, so that on one hand, the sealing effect is improved, and on the other hand, the fixation of the second cooling heat insulation board 119 is realized. For example, the second connecting portion 842 and the corresponding cover 12 or the rear side plate 116 may be fixed by a fastener.

In some embodiments, as shown in fig. 9, the upper end of the second cooling and heat insulating panel 119 further forms a second connecting portion 842 extending upward, a lower edge of the second connecting portion 842 is connected to an outer edge of the second bent portion 841, and the second connecting portion 842 is attached to the cover plate 12, so as to improve the sealing effect of the air insulation layer and the fixing stability of the second cooling and heat insulating panel 119.

In some embodiments of the present invention, as shown in fig. 9 and 11, the burner 31 has a bottom side plate 61, a downward extending downward flange 62 is provided at the rear end of the bottom side plate 61, and the downward flange 62 is attached to the rear side plate 116 of the frame 11 to fix the burner 31, for example, the downward flange 62 and the rear side plate 116 of the frame 11 can be locked by a fastener, which is beneficial to the front assembly of the burner 31 and improves the assembly efficiency. The lower end of the second cooling heat insulating panel 119 is in clearance fit with the bottom side plate 61, for example, the lower end of the second cooling heat insulating panel 119 is in sealing fit with the bottom side plate 61 or is spaced apart by a small clearance, and the bottom side plate 61 is provided with a through hole 521, and the through hole 521 is communicated with the inlet of the second air-cooling passage 52.

Therefore, the second air-cooling channel 52 is defined between the second cooling heat insulation board 119 and the rear side board 116 of the frame 11, and the through hole 521 on the bottom side board 61 is communicated with the second air-cooling channel 52, so as to avoid the interference between the air intake structure of the second air-cooling channel 52 and the fixing structure of the combustor 31, and the structural design is more reasonable.

In some embodiments of the present invention, as shown in fig. 4, the left side plate 113, the right side plate 114 and the rear side plate 116 of the frame body 11 can be integrally formed to form a frame body, the bottom plate 115 of the frame body 11 is connected to the bottom of the frame body, such as riveting, welding or fastener connection, and the bottom plates 115 of the frame body and the frame body 11 are all connected to the cover plate 12 to form a complete shell structure.

And the integral frame body is beneficial to improving the sealing performance of the first air cooling channel 51 and the second air cooling channel 52. For example, in the embodiment including the first and second air- cooling ducts 51 and 52, the integrally formed frame body makes no gap between the left and right side plates 113 and 114 and the rear side plate 116 of the frame body 11, and the frame body is more easily sealed with the first and second cooling heat insulation plates 118 and 119.

In some embodiments, as shown in fig. 4, the left side plate 113 and the right side plate 114 of the frame 11 are respectively provided with a first cooling insulation plate 118 at intervals, so as to form a first air cooling channel 51; the rear plate 116 of the frame 11 is spaced apart from the second cooling insulation plate 119 to define the second air-cooling duct 52.

And the first cooling heat insulation board 118 and the second cooling heat insulation board 119 are integrally formed to form a U-shaped structure with the shape substantially the same as that of the frame body, and the two integrated pieces are mutually matched to define two first air cooling channels 51 and one second air cooling channel 52, so that the sealing performance of the air cooling channels is greatly improved.

In addition, in the assembling process, the left side plate 113, the right side plate 114 and the rear side plate 116 of the frame body 11 do not need to be assembled, the first cooling heat insulation plate 118 and the second cooling heat insulation plate 119 do not need to be assembled, and when the integrated cooling heat insulation plate is connected with the frame body, the operation is performed from the front side of the frame body, so that the assembling process is greatly simplified.

In some embodiments, as shown in fig. 4, the front side edge of the left side plate 113 of the frame 11 is provided with a frame flange 16 extending leftwards or rightwards, the front side edge of the right side plate 114 of the frame 11 is also provided with a frame flange 16 extending leftwards or rightwards, and the bottom plate 115 of the frame 11 is provided with a bottom plate flange 17 extending upwards or downwards. So that the frame flange 16 and the floor flange 17 are both located substantially in the longitudinal plane in the left-right direction.

Wherein, the cover plate 12 can be connected with the frame body flange 16 and the bottom plate flange 17 through fasteners. Wherein, the fastener can be a screw, a bolt, etc. Therefore, the left side plate 113, the right side plate 114 and the bottom plate 115 of the frame 11 can be assembled with the cover plate 12 from the front side of the frame 11, namely, the front assembly is realized, screws are not required to be screwed from multiple directions, and the assembly process is simplified. For example, all the fasteners of the cover plate 12 can be driven through a specific tool in a short time, so that automatic production is realized, the assembly time is greatly reduced, and the production efficiency is improved.

In some embodiments of the present invention, as shown in fig. 4, the top edge of the rear side panel 116 of the frame 11 is a flat panel extending in the longitudinal direction, and the hood 22 is connected to the flat panel, for example, by fasteners. In other words, the portion of the rear side plate 116 of the frame 11 for connecting with the hood 22 is not connected with the hood 22 through a flat plate, rather than a flanging structure bent in the transverse direction, so that the front side or the back side of the frame 11 can be installed during assembly, which is beneficial to simplifying the assembly process.

In some embodiments, sound insulation wool may be provided between the frame 11 and the first member 20. Soundproof cotton can play syllable-dividing effect to reduce gas equipment 100's noise at work, can play simultaneously sealed, damping effect, with leakproofness and the structural stability who improves the casing. Alternatively, the soundproof cotton may be stuck to the frame body 11 to avoid the offset.

In some embodiments, the top and both side edges of the rear side plate 116 of the frame 11 are provided with flat plates extending in the longitudinal direction, the top of the left side plate 113 of the frame 11 is provided with a first flange 1131 extending in the transverse direction, and the top of the right side plate 114 is provided with a second flange 1141 extending in the transverse direction. Wherein, the left side end plate 211, the right side end plate 212 and the back plate 221 of the heat exchanger 21 are all matched with the flat plate and sealed through soundproof cotton, and the left side end plate 211 of the heat exchanger 21 is matched with the first flanging 1131, the right side end plate 212 and the second flanging 1141 and sealed through soundproof cotton.

In some embodiments of the present invention, as shown in fig. 4, the cooling and heat insulating plate corresponding to the left side plate 113 or the right side plate 114 of the frame 11 may be provided with a mounting hole 1142, and the mounting hole 1142 is used for mounting the ignition needle, so that the ignition needle may extend into the combustion chamber for ignition. For example, the ignition needle may extend into the second chamber between the burner 31 and the heat exchanger 21 to facilitate smooth ignition.

The left side plate 113 or the right side plate 114 of the housing 11 may be provided with an opening facing the mounting hole 1142 to avoid the ignition pin.

In some embodiments of the present invention, as shown in fig. 6, the cooling insulation panel corresponding to the cover plate 12 is provided with fire observation holes 124. The combustion state in the combustion chamber can be observed through the fire observation hole 124 to ensure stable combustion of the gas combustion apparatus 100. For example, the fire observation hole 124 may be provided to correspond to the second chamber between the burner 31 and the heat exchanger 21, so that it is more convenient to observe the combustion state.

It should be noted that the cover 12 may be provided with an opening opposite the fire aperture 124.

According to the utility model discloses gas heater includes according to the utility model discloses gas equipment 100 of embodiment. Because according to the utility model discloses gas equipment 100 has above-mentioned profitable technological effect, consequently according to the utility model discloses gas heater can reduce casing 10 and to outer heat radiation, reduces the heat and receives the heat loss to the spare part's of gas equipment 100 harm, avoids gas equipment 100's electronic components.

In some embodiments, the gas water heater comprises a gas heating stove or a gas wall-hanging stove.

In the description of the present invention, it should be understood that the terms "bottom", "top", "inner", "outer", "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (44)

1. A gas-fired appliance, comprising:

a housing including a frame and a cover plate, the frame having a top opening and a front opening;

the heat exchanger and the smoke hood are assembled at the top of the frame body and matched with the top opening, and the cover plate is detachably connected with the front side edge of the frame body and the smoke hood;

the combustor and the gas distribution rod are assembled in the frame body and are positioned at the bottom;

and the fan part is assembled on the bottom plate of the frame body and is positioned outside the frame body.

2. The gas-fired equipment according to claim 1, wherein the frame body comprises a left side plate, a rear side plate, a right side plate and a bottom plate, the height of the left side plate and the right side plate is lower than that of the rear side plate, and the left side and the right side of the heat exchanger are respectively clamped on the left side plate and the right side plate.

3. The gas equipment according to claim 2, wherein one of the lower edge of the left side end plate of the heat exchanger and the upper edge of the left side plate of the frame body is provided with a first clamping hook, the other one of the lower edge of the left side end plate of the heat exchanger and the upper edge of the right side plate of the frame body is provided with a first flanging matched with the first clamping hook, correspondingly, one of the lower edge of the right side end plate of the heat exchanger and the upper edge of the right side plate of the frame body is provided with a second clamping hook, and the other one of the lower edge of the right side end plate of the heat exchanger and the upper edge of the right side plate of the frame body is provided with a second flanging matched with the second clamping hook.

4. The gas appliance according to claim 2, wherein the rear plate of the hood is provided with a plurality of first positioning through holes, and correspondingly, the upper portion of the rear side plate of the frame body is provided with a plurality of second positioning through holes, and the first positioning through holes and the second positioning through holes are locked by screws.

5. The gas equipment as claimed in claim 2, wherein the top surface of the smoke hood is provided with a third flange extending upwards, the cover plate is provided with a third clamping hook, and the third flange is inserted into the third clamping hook.

6. The gas equipment of claim 5, wherein the front side edge of the frame body is provided with a plurality of positioning flanges, correspondingly, the cover plate is provided with a plurality of positioning notches, and the positioning flanges are clamped in the positioning notches.

7. The gas appliance according to claim 5, wherein the lower side of the cover plate is provided with a third positioning through hole, correspondingly, the front side of the bottom plate is provided with a fourth positioning through hole, and the third positioning through hole and the fourth positioning through hole are locked through a screw.

8. The gas equipment as claimed in claim 2, wherein the bottom plate is provided with a fan interface, an air outlet of the fan unit corresponds to the fan interface, the fan unit is provided with a first positioning lug, the bottom surface of the bottom plate extends downwards to be provided with a second positioning lug, and the first positioning lug and the second positioning lug are locked through a screw.

9. The gas appliance according to claim 8, wherein a positioning strip is provided on the top of the fan assembly, a strip-shaped positioning hole is provided on the bottom plate, and the positioning strip is inserted into the strip-shaped positioning hole.

10. The gas equipment according to any one of claims 1 to 9, wherein the left inner wall and/or the right inner wall of the frame body are respectively provided with a first cooling heat insulation plate at intervals, so that a first air cooling channel is formed, the first air cooling channel is communicated with the air outlet of the fan unit, and at least part of air flow in the first air cooling channel blows towards the left end and the right end of the heat exchanger.

11. The gas fired plant of claim 10, wherein the bottom of the first air cooled channel has an inlet and the top of the first air cooled channel has an outlet.

12. The gas appliance according to any one of claims 1 to 9, wherein the rear side plate of the frame body and/or the cover plate are respectively provided with a second cooling and heat insulating plate at intervals, so that a second air cooling channel communicated with the air outlet of the fan unit is formed, and a part of the second air cooling channel wraps the periphery of the heat exchanger.

13. The gas fired facility according to claim 12, wherein said second cooling heat insulating panel has a plurality of cutouts having a lateral extension extending from inside to outside and a longitudinal extension having a starting end connected to a trailing end of said lateral extension, said longitudinal extension extending obliquely upward while being folded, each of said cutouts having an outlet of said second air-cooled channel.

14. The gas fired appliance of claim 13, wherein each said cutout segment has an outlet formed in said laterally extending segment and opening upwardly.

15. The gas fired device of claim 11, wherein the inlet is below a combustion face of the burner.

16. A gas-fired appliance, comprising:

the heat exchanger, the combustor and the gas distributing rod are arranged in the shell to form a closed combustion heat exchange chamber in the shell;

the fan part is assembled on the bottom plate of the frame body and is positioned outside the frame body;

the cooling heat insulation plates are connected to the inner wall of the shell at intervals, and part of air input by the fan device forms airflow between the inner wall of the shell and the cooling heat insulation plates to form an air cooling channel.

17. The gas appliance according to claim 16, wherein the left side plate and/or the right side plate of the frame body are respectively provided with a first cooling and heat insulating plate at intervals, so that a first air cooling channel is formed, the bottom of the first air cooling channel is provided with an inlet, and the top of the first air cooling channel is provided with an outlet.

18. The gas appliance according to claim 17, wherein the first cooling and heat insulating panel extends to the bottom of the burner toward the lower portion of the left and/or right side panels of the frame such that the inlet of the first air-cooling duct is lower than or flush with the bottom surface of the burner.

19. The gas fired device of claim 17, wherein the portion of the first cooling heat shield between the inlet and the outlet of the first air cooling channel is a continuous plate.

20. The gas fired equipment of claim 17, wherein the top outlet of the first air cooled channel is near the bottom of the heat exchanger, and the air flow in the first air cooled channel is at least partially blown towards the left and right ends of the heat exchanger.

21. The gas appliance according to claim 17, wherein at least one end edge of the first cooling heat insulation plate is bent and extended to form a first bent portion extending outwards, the first bent portion extends outwards to form a first connecting portion, and the first connecting portion is attached to the left side plate or the right side plate of the frame body.

22. The gas appliance according to claim 21, wherein the first bent portion of the lower end of the first cooling heat insulating panel is provided with an inlet of the first air-cooling duct.

23. The gas-fired equipment according to claim 21, wherein the inlet of the first air-cooling duct comprises a plurality of strip-shaped holes arranged at intervals in the front-rear direction at the first bending part.

24. The gas appliance according to claim 17, wherein at least one of the left and right side plates of the frame is provided with at least one reinforcement portion protruding outward to form a groove having a notch facing the first air-cooling passage at an inner side, the groove being bar-shaped and extending in a length direction in an up-and-down direction.

25. The gas appliance according to claim 17, wherein the rear plate of the frame and/or the cover plate are provided with second cooling heat insulation plates at intervals, so as to form a second air-cooling channel communicated with the air outlet of the fan unit, and the inlet of the second air-cooling channel is higher than the inlet of the first air-cooling channel.

26. The gas fired appliance of claim 25, wherein said second cooling insulation panel extends towards the bottom of the rear side panel of said frame, the gap between said second cooling insulation panel and said rear side panel of said frame forming a back air intake of said second air-cooled duct, said back air intake being located proximate to the bottom side panel of said burner.

27. The gas appliance according to claim 26, wherein the second cooling heat insulation plate extends to a lower portion of the cover plate, a gap between the second cooling heat insulation plate and the cover plate forms a front air inlet of the second air-cooled channel, and the front air inlet of the second air-cooled channel is higher than the back air inlet.

28. The gas fired appliance of claim 25, wherein the second cooling insulation panels extend to the top of the cover plate and/or the rear side of the frame to the sides of the heat exchanger to form insulation on the front and rear sides of the heat exchanger.

29. The gas fired facility according to claim 28, wherein said second cooling heat insulating panel has at least one cutout section having a lateral extension section extending from inside to outside and a longitudinal extension section having a starting end connected to a trailing end of said lateral extension section, said longitudinal extension section extending obliquely upward while being folded, each of said cutout sections having an outlet of said second air-cooled channel.

30. The gas fired plant according to claim 29, wherein said second cooling and heat insulating panel has a plurality of said intercepting sections arranged in a longitudinal direction and connected in sequence.

31. The gas fired equipment of claim 29, wherein the outlet of the second air cooling channel comprises a plurality of strip shaped holes spaced in a left-right direction in the cutout section.

32. The gas fired facility of claim 30, wherein the junction of the transversely extending section and the longitudinally extending section of the uppermost cutout section is in contact engagement with the corresponding cover plate or rear side plate of the frame body, and the junction of the transversely extending section and the longitudinally extending section of the other cutout section is spaced from the corresponding cover plate or rear side plate of the frame body.

33. The gas appliance according to claim 25, wherein the rear plate of the frame body is provided with at least one reinforcing portion protruding outward to form a groove having a notch facing the second air-cooled duct at an inner side, the groove being bar-shaped and extending in a length direction in an up-down direction.

34. The gas fired device according to claim 29, wherein the insulation is located on the upper side of the second air cooling channel and is connected with the longitudinally extending section of the uppermost cutout section.

35. The gas fired device of claim 34, wherein the insulation is an air insulation layer that is not in communication with the second air cooled channel.

36. The gas appliance according to claim 25, wherein said second cooling and heat insulating panel has a supporting protrusion located in said second air-cooled channel and abutting against a rear plate of said frame or said cover plate.

37. The gas appliance according to claim 25, wherein the lower end of the second cooling heat insulation plate engaged with the cover plate is bent and extended to form a second bent portion extending outward and a second connection portion extending downward, the second bent portion is provided with a front side air inlet of the second air cooling passage, and the second connection portion is attached to the cover plate.

38. The gas appliance according to claim 25, wherein the burner has a bottom side plate, a downward extending downward flange is provided at a rear end of the bottom side plate, the downward flange is attached to the rear side plate of the frame, a lower end of the second cooling heat insulation plate is fitted to the bottom side plate, and a through hole is provided in the bottom side plate and communicates with an inlet of the second air cooling passage.

39. The gas appliance according to claim 16, wherein the left side plate, the right side plate and the rear side plate of the frame body are integrally formed as a frame body, the bottom plate of the frame body is connected to the bottom of the frame body, and the cover plate is connected to the frame body and the bottom plate of the frame body.

40. The gas-fired equipment according to claim 16, wherein the front side edges of the left side plate and the right side plate of the frame body are provided with frame body flanges extending leftwards or rightwards, the bottom plate of the frame body is provided with bottom plate flanges extending upwards or downwards, and the cover plate is connected with the frame body flanges and the bottom plate flanges.

41. The gas fired appliance of claim 16, wherein the top edge of the rear panel of the frame is a longitudinally extending flat plate with the smoke cage connected thereto.

42. The gas fired appliance of claim 16, wherein sound insulation wool is provided between the frame and the heat exchanger and the smoke cage.

43. Gas-fired appliance according to claim 16,

the part of the cooling heat insulation plate corresponding to the left side plate or the right side plate of the frame body is provided with a mounting hole for mounting an ignition needle;

and the part of the cooling heat insulation plate corresponding to the cover plate is provided with a fire observation hole.

44. A gas water heater comprising a gas appliance as claimed in any one of claims 1 to 43.

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