KR910009224B1 - Roaster - Google Patents

Abstract

The roaster comprises a roasting chamber (2) having inner heating element (8) for cooking, door (7) mounted at a opening hole (6) of body frame (1); a fume-reburning burner (4) provided at the fume discharging passage (3) on the back of the chamber (2); a discharging way (5) bulged to the chamber (2) in front of the passage (3) for mounting the burner (4). The structure of the roaster, prevents the contamination of the chamber (2) and the way (5) from oil contained in the cold fume, and promotes the flame spreading between two burners.

Description

Roasting

1 is a perspective view showing one embodiment of the present invention.

2 is an enlarged cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a view seen from line III-III of FIG. 2;

4 is an exploded perspective view of main parts.

5 is a perspective view showing a state in which the rear cover is separated.

6 is an exploded perspective view of the oxidation catalyst filter and the attachment case.

7 and 8 are required cutaway side views of another embodiment of the present invention.

9 is a perspective view of the gas burner of the embodiment of FIG. 8.

10 is a cutaway side view of still another embodiment of the present invention.

FIG. 11 is a view from line XI-XI of FIG. 10; FIG.

12 is a cutaway side view of another embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

2: roasting room 3: smoke exhaust passage

4: heating source 5: protrusion discharge passage

TECHNICAL FIELD This invention relates to roasting, such as oven, grilling fish, or roasting meat.

In a conventional roasting chamber, it is known from Japanese Patent Application Laid-Open No. 60-1060004 to install a heating source in the smoke exhaust passage that roasts smoke generated during roasting.

However, in the related art, a heating source for the smoke discharge provided in the smoke discharge passage is provided at or near the outlet of the smoke discharge passage away from the chamber.

For this reason, the oil contained in the smoke generated in the roasting chamber tends to become dirty due to the smoke discharge passage, and the exhaust temperature of the smoke discharge passage exit becomes high.

In order to solve this problem, it is good to provide a heating source for roasting the smoke on the roasting chamber side of the smoke discharge passage and to have a rear exhaust type extending the smoke discharge passage backward.

However, when doing this, there is a problem that the entire roasting lengthened in the front and rear directions.

The object of the present invention is to obtain a roaster without this problem.

In order to achieve the above object, the present invention includes a door for free opening and closing in the front opening of the roasting main body and a cooking heating source therein, and protrudes a smoke discharge passage in the upper part of the roasting chamber, and smokes in the discharge passage. In the installation of a heat source for oxidizing and discharging gas, the protruding discharge passage protruding into the roasting chamber is presented at the front end of the discharge passage, and the heating source for oxidizing and discharging is installed in the protruding discharge passage. Is done.

In the combustor having the above structure, the smoke generated in the roasting chamber is heated by the heat from the heat source for burning the smoke when the temperature immediately after flowing into the protruding passage is burned so that the unburned powder contained therein is burned. .

And since it is discharged via the smoke discharge passage extending to the rear, the exhaust temperature is lower than the conventional one.

Moreover, since this heating source protrudes in the upper back part of a roasting chamber, even if it lengthens, the whole roasting does not become long.

A case where the embodiment of the present invention is applied to a stove with a roaster will be described.

In the drawing, 1 is a roasting main body, 2 is a roasting chamber installed therein, and 3 is a smoke exhaust passage for discharging smoke generated in the roasting chamber 2, and a projection projecting into the roasting chamber at the front of the smoke exhaust passage 3. In addition to addressing the discharge passage 5, a heating source 4 for smoke roasting was installed in the projected discharge passage 5.

Explaining this based on the embodiment shown in FIGS. 1-6, this baking room 2 is equipped with the opening / closing door 7 which closes the open hole 6 formed in the front surface, and it is for cooking in the upper part of this baking room 2 The gas burner serving as the heating source 8, the gas burner serving as the heating source 8 for cooking and the gas burner serving as the heating source 4 for the smoke roasting, have a ceramic plate 11 having a plurality of flame holes 10 formed on the lower surface of the common burner. Was attached to obtain a surface combustion gas burner b.

In this case, the ceramic plate 11 is made into two sheets in the front-rear direction, and the second half of the cooking source 8 and the combustion roasting source 4 are formed on the rear ceramic plate 11 to continuously cook the cooking source 8 and the smoke roasting source 4. Made up.

12 denotes the upper frame installed on the top of the roaster 1. The upper frame 12 was welded to the first half 12a and the second half 12b and hollowed out, as shown in FIG. 4, and the first half 12a was a heat source 4,8. It consists of a rectangular frame having a trough hole 12a-1 for opening the ceramic plate 11, which is a gas burner b, to be constituted. The second half portion 12b includes a bottom portion 12b-1 and an L-shaped tube portion 12b-2. The catalyst filter attachment part 3b was provided in the outlet port 3a of -2, and the ignition hole 14 mentioned later was formed in this bottom part 12b-1.

Both of them overlap the bottom surface 12a-3 of the first half 12a with both shaft portions of the bottom 12b-1 of the second half 12b, and the front end 12c of the barrel 12b-2 of the second half 12b overlaps with the rear end 12a-4 of the first half 12a. When the gas burner b is attached to the open hole 12a-1 of the first half 12a, the bottom and the bottom 12b-1 of the heating source 4 In between, a narrow smoke roasting space having a height of about 1.5 cm is formed, using the smoke roasting source 4 as a smoke burner.

When this is covered with the box 2c constituting the lower half of the baking chamber 2 placed on the rail 2c-1, the protruding discharge passage 5 protruding forward from above the rear wall 2e of the box 2c is formed.

In the drawing, 13 denotes an ignition burner for igniting the heating source 4 for igniting smoke, and the ignition flame of the ignition burner 13 is a perspective hole formed in the outer wall 2a, 2b and the bottom part 12b-1 of the roasting chamber 2. The gas burner serving as the heating source 4 for smoke roasting was ignited through 14, and the gas burner serving as the heating source for cooking 8 was ignited by the displacement in the heating source 4 for smoking roasting.

In this way, since the lower surface of the gas burner constituting the heating source 4 for smoke roasting is narrow, the fuel gas discharged to the gas burner at the time of ignition is easily filled with the lower surface of the gas burner, so that it can be easily ignited. The combustion gas burner also has the advantage of easy ignition.

In addition, since the discharge passage 3 has lower pressure than the roasting chamber 2, heat does not flow out through the see-through hole 14.

In the above-described embodiment, the smoke roasting source 4 and the cooking heat source 8 are continuously formed on the same ceramic plate 11 provided on the lower surface of the common burner body 9, but the ceramic plate 11 is smoked in the same burner bond. The roasting source 4 and the cooking source 8 may be divided into continuous structures.

In this way, the influence of the heat deformation of the ceramic plate 11 is reduced, and the ceramic plate 11 is not broken.

In addition, both heating sources 4,8 are formed on the common ceramic plate 11 installed in the burner body 9, and a flameless hole hole is formed between the two, and the flameless hole part is formed. It may be formed by speaking, and in the same burner body, both heating sources 8 and 4 are made of separate ceramic plates 11 and 11, leaving a flameless hole for transfer between the heating elements 8 and 4, and installing some flameless holes. Both heating sources 8 and 4 may be installed by speaking. Also, as shown in FIG. 7, the heating elements 4 and 8 are attached to the lower surface of each burner body 9, and the ceramic plates 11 having flame holes 10 are attached to each other. The heat sources 4 and 8 may be formed by exchanging speeches independently.

In this case, the transfer from the heat source 4 for smoke roasting to the heat source 8 for cooking is carried out by the flame guide 32 which spans both.

In all of these cases, the gas burner of the heating source 4 for the fire-extinguishing gas installed above the protruding exhaust passage 5 is to have the gas burner and the burner body 9 which are the heating source 8 for cooking in common, or continuously or speaking. It is easy to ignite both gas burners because it is not necessary to speak in common, and if burner body 9 is common, the structure is simple.

In addition, the cooking heating source 8 and the smoke roasting heating source 4 are not limited to those having the ceramic plate 11, and pipe burners can also be used as shown in Figs. As shown in Figs. 10 and 11, the circle 8 may be installed at the bottom of the roasting chamber 2 to cook food at the lower surface thereof, or the electric heating sources 4 and 8 may be electric heaters.

In the embodiment shown in Figs. 1 to 6, the surface facing the heating source 4 for smoke roasting of the protruding discharge passage 5 tends to be particularly hot.

Therefore, it is preferable to perform heat resistance measures, such as forming a recessed part in the back surface and embedding a refractory material in this.

In Figs. 1 to 6, reference numeral 15 denotes an oxidation catalyst filter adhering to the catalyst attachment part 3b. The oxidation catalyst filter chemically changes CO in exhaust gas to CO ₂ to purify the exhaust gas.

This oxidation catalyst filter 15 is attached to the attachment portion 3b by attaching the attachment case 16 as shown in FIG.

As shown in FIG. 6, the attachment case 16 is a rectangular body having open holes 16a and 16a formed in the upper and lower sides, and the downwardly curved protrusion 16b formed at both ends of the lower case of the attachment case 16 and the protrusion 16c protruding in the lateral direction. Is inserted into the grooves 3b-1 and 3b-1 formed in the attachment portion 3b, and is attached to the attachment portion 3b. Then, the protrusion pieces 16b are bent and fixed.

Further, the cut pieces 16d, 16d ... are formed on each side wall of the attachment case 16, and the oxidation catalyst filter 15 is sandwiched between the cut pieces 16d, 16d, thereby oxidizing the catalyst in the attachment case 16. Filter 15 was supported to prevent rattling.

In addition, in the above-mentioned embodiment, although both sides of the protrusion discharge passage 5 are in a closed state, it is not necessary to necessarily close it.

As described above, the exhaust gas is effectively discharged by installing the heating source 4 for smoke roasting in the narrow part of the protruding discharge passage 5, but when the narrow passage part is formed, black smoke is provided when the oxidation catalyst filter 15 is installed. The passage resistance in discharge passage 3 increases.

Therefore, if a gap is formed in the baking chamber 2, heat will easily leak into this gap.

Therefore, in this embodiment, the heat penetrates into the upper surface of the upper frame 12 by abutting the flange portion 12a-2 formed at the front end of the upper portion with the rear surface of the tetuary 2d formed on the front surface of the container 2c constituting the roasting chamber 2. In order to prevent this from happening, the edge is formed to be inclined along the rear surface of the door 7 so that the upper half of the 2d can be in close contact with the rear both sides of the door 7 which is installed at the front thereof. It leaked out, and the operation handle A etc. which were provided in the both sides were prevented from being heated.

In addition, 17 has shown the clip piece which clipped in the position which closed the opening-closing door 7 in order to ensure this close_contact | adherence, The clearance gap 7a was formed in the lower part of the opening-closing door 7 as an air intake opening.

Moreover, there exists a tendency for the temperature of the upper board 19 also to rise because the temperature of the baking chamber 2 rises for the reason mentioned above.

Therefore, the upper plate 19 placed on the upper surface of the roasting chamber 2 is positioned in front of the outlet 3 of the smoke exhaust passage to form an open hole 18, and the gap 20 between the roasting chamber 2 and the correlator 19 installed on the upper surface thereof is formed in the open hole 18. The heat generated from the upper surface of the baking chamber 2 was allowed to escape through the open hole 18.

21 shows a cover provided on the opening 18 of the opening 18 and the smoke exhaust passage 3, and the cover 21 is provided with openings 22, 23 at positions and rear surfaces facing the exit upper surface of the smoke exhaust passage 3, respectively.

The open-hole 22 has a hood 24 covering the upper surface. The cover 21 and the hood 24 are actually assembled, and the cover 21 is formed on the main body 1 by legs 25 and 25 protruding downward from both sides thereof. One insertion hole 26 was inserted into and supported.

In this way, the hot air flowing out of the open hole 18 flows out to the smoke discharge passage 3 in the direction of the arrow and is exhausted to the rear open hole 23.

In addition, the part exposed outside the roasting main body 1 of the smoke exhaust passage 3 also tends to have a high temperature for the above-mentioned reasons, and is a gas pipe made of a rubber product that supplies fuel gas to a gas burner as a heating source 4,8. This contact may be damaged, and heat shield 28 is installed in this portion.

In FIG. 2, 29 denotes a fan communicating with the exhaust port from the smoke burner gas burner installed in the smoke discharge passage 3 to the downstream exhaust passage 3, and the opening and closing door 7 is opened in the operation circuit 30 of the motor 29a driving the fan 29. The closing switch 31 was installed, and the fan 29 was operated in conjunction with the opening operation of the opening / closing door 7.

In this case, narrow the portion where the heating source for smoke roasting is installed to improve the roasting of the smoke, or install a catalyst filter in the smoke exhaust passage, thereby slightly resisting the smoke discharged through the smoke exhaust passage. This makes it possible to prevent the smoke from being discharged into the open hole 6 when the door is opened.

In addition, the oxidation catalyst filter 15 may be provided so as to be located on the lower surface of the heating source 4 for smoke roasting, as shown in FIG. 7, and this can be activated by the heat of the heating source 4 for smoke roasting, which is advantageous. In addition, the lower surface of the protruding passage 5 can be protected from heat.

In addition, in FIG. 1 to FIG. 6, in addition to the cooking heating source 8, a heating source 4 for smoke roasting is provided, and the heating source 4 for smoking roasting is not only a protruding discharge passage 5 but also a smoke exhaust passage 3. Although shown as an embodiment by extending, as shown in FIG. 12, a part of the gas burner b as the heating source 8 for cooking is installed in the projection discharge passage 5, and the gas burner installed only in the projection discharge passage 5 is smoked. It is also possible to provide a heating source for roasting. In this way, the atmosphere temperature of the gas burner b portion provided in the narrow projecting discharge passage 5 becomes high, and smoke can be sufficiently discharged to this.

In the figure, 33 denotes a thermocouple for flame detection.

Since this invention is comprised as mentioned above, it has the effect described next.

That is, in the combustor of claim 1, since the projection discharge passage protruding into the roasting chamber is not required, the length of the roasting main body does not have to be lengthened in the front and rear directions. Since the hot smoke is heated and roasted again to the heating source for smoke roasting, the heat quantity of the heating source can be suppressed relatively small, and it can be roasted as soon as the smoke enters the discharge passage.

Since the subsequent smoke is discharged to the outside via the smoke discharge passage, the exhaust temperature can be relatively lower than that in the case where the smoke exhaust heating source is provided on the outlet side as in the prior art, and can be used safely.

In the roaster of claim 2, since both heating sources are continuous or speeched, the smoke is always heated by the heating source until the smoke is roasted by the heating source for smoke roasting and smokeless. The problem of contamination by adhering to the roasting chamber of the oil or the like and the wall of the protruding discharge passage contained in the oil is prevented, and in the roasting of claim 3, it is easy to transfer to both gas burners.

Claims (3)

In the main body of the roaster 1, a front door opening 6, which is free to open and close, is provided with a roasting chamber 2 having a heating source 8 for cooking, and a smoke exhaust passage 3 is derived from the rear upper part of the roasting chamber 2, In the case where the smoke discharge heating source 4 which distributes the smoke is installed in the smoke discharge passage 3, the protrusion discharge passage 5 which protrudes into the roasting chamber 2 in front of the said smoke discharge passage 3 will be spoken, and this protrusion discharge passage 5 Roasting, characterized in that by installing the heating source 4 for the smoke roast. 2. The roaster according to claim 1, wherein the heating source 4 for smoke roasting is provided continuously or speaking to the cooking heating source 8 for continuous heating or speech. The roaster according to claim 2, wherein the cooking heating source 8 and the smoke roasting heating source 4 are constituted by a gas burner.

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