CN201338988Y - Convection type glass plate heating furnace - Google Patents
Convection type glass plate heating furnace Download PDFInfo
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- CN201338988Y CN201338988Y CNU2009201048271U CN200920104827U CN201338988Y CN 201338988 Y CN201338988 Y CN 201338988Y CN U2009201048271 U CNU2009201048271 U CN U2009201048271U CN 200920104827 U CN200920104827 U CN 200920104827U CN 201338988 Y CN201338988 Y CN 201338988Y
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Abstract
The utility model discloses an arranging method for a high-temperature gas nozzle of a convection type glass plate heating furnace, and also discloses a convection type glass plate heating furnace which is designed according to the method. All the gas nozzles in the whole heating working surface in the furnace chamber are divided into a plurality of units in matrix arrangement, and the sprayed gas temperature and/or the gas sprayed volume of each unit nozzle can be adjusted, so that the area control of the high-temperature gas convection heating in the furnace chamber is realized, not only the energy waste can be avoided by only starting up the unit corresponding to the size of the glass plate to work when machining the small-sized glass plates, but also the heated uniformity of the whole glass plate can be ensured by respectively adjusting the heat exerted on the different parts of the glass plate by various units when machining the large-sized glass plates; therefore, the utility model greatly improves the performance of the heating furnace and provides technical support for improving the heating quality of the glass plates and reducing the glass machining cost.
Description
Technical field
The present invention relates to the method to set up of high-temperature gas spout in a kind of convection type glass plate heating furnace, and the convection type glass plate heating furnace of using this set method.
Background technology
The applicant's previous application crosses that a patent No. is 200410046386.6, name is called the Chinese invention patent of " convection type glass plate heating furnace ", in this convection type glass plate heating furnace, the applicant not only utilizes the high-temperature gas convective heating to solve the existing problem of radiation heating in the past, and by in furnace chamber, a plurality of plenum chambers vertically being set along body of heater, realized that further the subregion to heating region is controlled in furnace chamber, make process furnace when processing small size sheet glass, only the high temperature spout work of regional area is got final product, reduce energy consumption.In addition, adopt a plurality of undersized plenum chambers, also made things convenient for processing, installation, adjustment and the maintenance of plenum chamber.
Above-mentioned convection type glass plate heating furnace promptly is subjected to people's welcome once release, has obtained good social benefit and economic benefit.
Yet, along with deepening continuously to the research of sheet glass heating process, the applicant finds, in the heat-processed of sheet glass, the glass plate edge zone exists certain difference with its middle zone on heat absorption speed, but still can make the glass plate edge zone and produce temperature head between the zone in the middle of it, and this temperature head has influenced the further raising of sheet glass heating quality and final tempering glassy product quality, therefore, above-mentioned convection type glass plate heating furnace still exists and needs room for improvement.
The utility model content
Primary and foremost purpose of the present invention is to provide the method to set up of high-temperature gas spout in a kind of convection type glass plate heating furnace, and further purpose is to provide a kind of convection type glass plate heating furnace of using this set method.
For achieving the above object,
In one aspect, the invention provides a kind of convection type glass plate heating furnace, comprise body of heater, have furnace chamber in the body of heater, be provided with several at least one side of glass sheets passage in the furnace chamber and be used for plenum chamber that sheet glass is heated, plenum chamber is provided with inlet mouth and jet plate, and each plenum chamber all disposes gas-heating apparatus and gas-circulating system separately, but makes the temperature of high-temperature gas that each plenum chamber sprays and/or the equal independent control of spray volume of high-temperature gas; Be provided with a plenum chamber and several sub-air chamber in each plenum chamber, wherein sub-air chamber is positioned at jet plate institute at one end, isolate mutually between plenum chamber and sub-air chamber and each sub-air chamber, and be separated into several unit one to one with sub-air chamber as the sidewall jet plate of sub-air chamber, be provided with gas passage between each sub-air chamber and the plenum chamber, and be provided with control valve on each gas passage; Gas enters plenum chamber through the plenum chamber inlet mouth, is assigned to each sub-air chamber from plenum chamber, from the jet plate unit ejection of each sub-air chamber, finishes the turnover in plenum chamber thus again; Can control the amount of the gas of each sub-air chamber ejection by the control valve that is arranged on each sub-air chamber's gas passage; The arrangement mode of the arrangement mode of several plenum chambers and each plenum chamber self sub-air chamber combines, and makes the described jet plate unit cell arrangement of on all plenum chambers all become at least 2 * 2 matrix to cover entire working surface in the furnace chamber.
Further, comprise 3 the above sub-air chamber in the described plenum chamber, and the matrix form arrangement is pressed by all sub-air chamber.
Further, described several plenum chambers that are arranged in the every side of furnace chamber glass sheets passage are arranged along vertical glass sheets direction, and described several sub-air chamber in the plenum chamber arrange along the glass sheets direction.
Further, described several plenum chambers that are arranged in the every side of furnace chamber glass sheets passage are arranged along the glass sheets direction, and described several sub-air chamber in the plenum chamber arrange along vertical glass sheets direction.
Further, described plenum chamber is arranged along vertical glass pane surface direction in described plenum chamber with described sub-air chamber, is separated by by dividing plate between plenum chamber and the sub-air chamber; Described control valve is a cone valve, this cone valve by taper valve core and be set directly at plenum chamber and sub-air chamber between valve opening on the dividing plate constitute, wherein on the taper valve core control stick is installed, the operating mechanism that this control stick one end passes glass plate heating furnace furnace wall and outside joins, and under this operating mechanism is handled, drive the taper valve core motion, finish the opening and closing operations of control valve.
Further, described each plenum chamber all disposes a blower fan separately, this blower fan outlet side joins by pipeline and plenum chamber inlet mouth, the blower fan inlet end joins by pipeline and furnace chamber, the gas-heating apparatus of described each plenum chamber configuration is a resistance heater, this electric heater unit is arranged in the plenum chamber of each plenum chamber or is arranged in the pipeline of blower fan inlet end, gas in the furnace chamber is sent into the plenum chamber of plenum chamber through blower fan, come back to the furnace chamber from each sub-air chamber's ejection of plenum chamber again, constitute the gas-circulating system of each plenum chamber thus.
Further, described each plenum chamber all disposes a blower fan separately, this blower fan outlet side joins by pipeline and plenum chamber inlet mouth, the pipeline that joins with the blower fan inlet end stretches in the furnace chamber, the gas-heating apparatus of described each plenum chamber configuration is that this well heater of flame radiant tube heater is fixed on the sidewall of the furnace body, its radiator tube inserts in the blower fan inlet end pipeline, gas in the furnace chamber is heated in blower fan inlet end pipeline after blower fan is sent into the plenum chamber plenum chamber, come back to the furnace chamber from each sub-air chamber's ejection again, constitute the gas-circulating system of each plenum chamber thus.
Further, be provided with in order to detect the temperature sensor of gas temperature in this sub-air chamber in each sub-air chamber of described each plenum chamber.
In yet another aspect, the present invention also provides a kind of convection type glass plate heating furnace, comprise body of heater, have furnace chamber in the body of heater, be provided with at least one side of glass sheets passage in the furnace chamber and be used for plenum chamber that sheet glass is heated more than 4, all plenum chambers are arranged at least 2 * 2 matrix and cover entire working surface in the furnace chamber, each plenum chamber all disposes gas-heating apparatus and gas-circulating system separately, but makes the temperature of high-temperature gas that each plenum chamber sprays and/or the equal independent control of spray volume of high-temperature gas.
The present invention is divided into unit one by one by arranged with all gas spout in the whole heating work face in the furnace chamber, and after making the temperature of each unit gas that spout sprays and/or gas spray volume adjustable, realized the regional control of high-temperature gas convective heating in the furnace chamber, both can when processing pieces of glass plate, only start and the corresponding cell operation of glass sheet size, to avoid energy dissipation, again can be when the process larger sized sheet glass, by regulating the heat that each unit imposes on the sheet glass different sites respectively, with the homogeneity that guarantees that whole sheet glass is heated, therefore, greatly improved the performance of process furnace, for improving the sheet glass heating quality, reduce the glass processing cost technical guarantee is provided.
Description of drawings
Fig. 1 is an exemplary embodiment longitudinal sectional view of convection type glass plate heating furnace of the present invention;
Fig. 2 is the E-E sectional view along Fig. 1;
Fig. 3 is the structural representation of flow control example valves driving mechanism of the present invention;
Fig. 4 is the another kind of variant of driving mechanism among Fig. 3;
Fig. 5 is the structural representation of another example valves driving mechanism of flow control of the present invention;
Fig. 6 is the synoptic diagram of the heating unit matrix arrangements among Fig. 1;
Fig. 7 is another embodiment that heating unit is arranged;
Fig. 8 is another embodiment that heating unit is arranged.
Embodiment
Below, with reference to the accompanying drawings, the present invention is more fully illustrated, exemplary embodiment of the present invention has been shown in the accompanying drawing.Yet the present invention can be presented as multiple multi-form, and should not be construed as the exemplary embodiment that is confined to narrate here.But, these embodiment are provided, thereby make the present invention, and scope of the present invention is fully conveyed to those of ordinary skill in the art comprehensively with complete.
In order to be easy to explanation, here can use such as " on ", D score " left side " space relative terms such as " right sides ", be used for element shown in the explanatory view or feature relation with respect to another element or feature.It should be understood that except the orientation shown in the figure spatial terminology is intended to comprise the different azimuth of device in using or operating.For example, if the device among the figure is squeezed, be stated as the element that is positioned at other elements or feature D score will be positioned at other elements or feature " on ".Therefore, the exemplary term D score can comprise upper and lower orientation both.Device can otherwise be located (revolve turn 90 degrees or be positioned at other orientation), and the relative explanation in used here space can correspondingly be explained.
Convection oven can be horizontal, and is vertical, even can be tilting.These several process furnace main differences are the direction difference of glass sheets: horizontal is that the direction of glass sheets is a horizontal direction, correspondingly body of heater is divided into upper furnace body and lower furnace body configuration, body of heater configuration shown in Fig. 1 and 2, for example delivery track can be arranged in the lower furnace body, rotate the transmission glass plate by track; Vertical is that the glass sheets direction is a vertical direction, and correspondingly body of heater is divided into left body of heater and the configuration of right body of heater, and is not shown, for example can come the transmission glass plate by the suspension system that is suspended on the furnace chamber top.Drawing similarly easily for tilting is that sheet glass is along the also non-vertical vergence direction transmission of non-level, because the sheet glass transmitting device than preceding two kinds of complexity, therefore uses less relatively in actual applications.Therefore omit its detailed description at these structures core not of the present invention place.
For the sake of clarity, be that example describes with the horizontal process furnace.Be understood that easily can draw similarly for vertical, tilting process furnace, its location arrangements can correspondingly be adjusted.
As a preferred embodiment of horizontal process furnace has been shown among Fig. 1 and Fig. 2, Fig. 1 is an exemplary embodiment longitudinal sectional view of convection type glass plate heating furnace of the present invention; And Fig. 2 is the E-E sectional view along Fig. 1.
As shown in FIG., the convection type glass plate heating furnace, comprise: the furnace chamber of forming by upper furnace body 2 and lower furnace body 1, this furnace chamber is provided with into fire door 3 and plug for outlet 4, also comprise glass sheets device 5, being used for sheet glass is transferred to plug for outlet 4 from advancing fire door 3, being the glass sheets passage from advancing fire door to the passage of plug for outlet, is the sheet glass direct of travel as the indicated direction of arrow A-F among Fig. 1.Also comprise gas-heating apparatus 14, be used for the gas of furnace chamber is heated.Also comprise sealing plenum chamber 6, this plenum chamber 6 is provided with inlet mouth 7 and jet plate 8, gas flows into plenum chamber 6 by this inlet mouth 7 from furnace chamber, gas in the plenum chamber 6 is ejected on the surface that is positioned at the sheet glass on the glass sheets device 5 by jet plate 8, thereby the surface of sheet glass is heated.Plenum chamber 6 further comprises plenum chamber 17 and several sub-air chamber 15, sub-air chamber 15 arranges near a side of jet plate, isolate mutually between plenum chamber 17 and each sub-air chamber 15, form at least at the stove cross direction thus several heating regions are provided with the passage 16 that is used for gas communication between plenum chamber 17 and each sub-air chamber 15.This passage 16 is provided with flow rate control device 18, is used to control the gas flow that flows into each sub-air chamber 15 from plenum chamber 17.
As shown in FIG., upside in the glass transmission path among Fig. 1 is provided with 5 plenum chambers, each plenum chamber comprises 4 sub-air chamber among Fig. 2, therefore the upper surface that singly is glass has just formed the heating unit of arranging with 5 * 4 matrix form, those heating units have covered the last working face of glass in the furnace chamber, and then the upper surface of glass is heated.The synoptic diagram of the arranged form of heating unit has been shown among Fig. 4 specifically as shown in Figure 4.Wherein, 5 formed heating units of plenum chamber are arranged in the direction that sheet glass is advanced, and 4 sub-air chamber that each plenum chamber comprised are distributed on the stove cross direction perpendicular to the sheet glass direct of travel.
Because the hot face (being the working-surface of process furnace) of glass has been divided into 5 * 4 matrix, and each unit in the matrix can carry out independent flow control by flow rate control device 18.Therefore produce this defective of temperature head in the prior art between glass plate edge zone and its middle zone, can be compensated by the gas flow of controlling fringe region and the pairing heating unit of region intermediate respectively.For example, because the feature of glass heats itself, fringe region is faster than region intermediate heat absorption speed, by on the stove cross direction, plenum chamber being divided into a plurality of (as 4) sub-air chamber, and utilize flow rate control device to control respectively for each sub-air chamber, therefore can suitably increase the gas flow of the heating unit that is positioned at the glass region intermediate, thereby eliminate the defective of prior art, realize the heating uniformity of stove cross direction.
, arranges by the plenum chamber shown in Fig. 4 that sub-air chamber arranges that perpendicular to the sheet glass direct of travel this configuration also can be put upside down although being parallel to the sheet glass direct of travel.
Among the embodiment shown in Fig. 4, be provided with 4 sub-air chamber in each plenum chamber, and sub-air chamber becomes 4 row to arrange, obviously, can be provided with in each plenum chamber m capable * a n row sub-air chamber, wherein m is not less than 2, n is not less than 1.As in the embodiment show in figure 7, each plenum chamber has been arranged 8 * 2 sub-air chamber, thereby has formed 8 * 10 heating units on surface on glass.
Be understood that easily, though 5 plenum chambers arranging along the sheet glass direct of travel have been shown in the diagram, but the quantity of plenum chamber is not done qualification, the quantity that plenum chamber is arranged is main decides according to wanting the length of heated glass plate, if shorter, may only need a plenum chamber just can realize as sheet glass length.The plenum chamber quantity of arranging still will be subjected to the qualification of factors such as power of heating efficiency, the total consumption of gas in addition.Further, the quantity of sub-air chamber is not done special qualification yet in the plenum chamber, but at least 2.The quantity of sub-air chamber is also relevant with the width of wanting heating glass.Although the quantity that sub-air chamber is provided with is many more, thus, the quantity in zone that being used to of formation heated matrix is many more, and correspondingly structure is just complicated more, and cost is also just high more.The quantity of sub-air chamber for example is 3,4,5,6 etc.
Preferably, each sub-air chamber 15 further is provided with in order to detect the temperature sensor 20 of the gas temperature in the sub-air chamber 15, and transmitter for example can be the form of thermopair, perhaps other forms of temperature sensor.After temperature sensor is set, make the accurate adjusting of temperature become possibility.Temperature sensor can obtain the temperature information in each sub-air chamber 15 in real time.In the time of will regulating a certain regional temperature, the mode of regulating includes but not limited to the fuel duty of this zonal combustion device 14 or burning sequential are regulated, also can send action command and regulate, up to satisfying the needed temperature of heating region flow control valve 18.
As shown in FIG., also be provided with gas distributing device and gas-heating apparatus 14 in the furnace chamber.In the preferred embodiment shown in the figure, gas distributing device mainly comprises two portions: blower fan 9 and heated air pipeline 13.Blower fan 9 rotations blow gas to plenum chamber 9 from heated air pipeline 13; Heated air pipeline 13 is the high-temperature gas path, and the form of making passage mainly is to help gas flow more, and helps the assembly of high-temperature gas.Although the gas distributing device shown in the figure mainly is made of blower fan and heated air pipeline, it is evident that gas distributing device can have only blower fan to constitute, and also can realize identical purpose, just technique effect is more inferior slightly than the former.In addition, except that blower fan, other devices such as other ventilator, electric blower all can be used for delivering gas.Preferably, blower fan 9 is positioned at inlet mouth 7 places of plenum chamber 6.Preferably, blower fan is arranged in the plenum chamber, and the negative pressure effect of Xing Chenging is more obvious like this.
In one embodiment, gas-heating apparatus preferably is arranged in the position of furnace chamber near top or bottom, and is fixed on the furnace chamber sidewall by stationary installation.Gas-heating apparatus extends to gas distributing device, for example as shown in Figure 2 among the embodiment, extends in the heated air pipeline 13, can more help gas is heated like this, and the gas after the heating can transmit through blower fan 9 apace.
Gas-heating apparatus 14 can be heat radiation tube.Be provided with flame burner in the radiator tube, fuel combustion produces heat, heats being positioned at radiator tube gas on every side by the thermal radiation of radiator tube, is heated to be after the high-temperature gas, utilizes high-temperature gas that jet plate is heated again.Be understood that easily radiator tube is the good material of heat conductivity, because the fuel combustion in it produces a large amount of heats, this heat outwards dispels the heat by radiator tube; Use radiator tube rather than utilize flame burner directly gas to be heated, has following advantage: because radiator tube comes flame and gas barrier, therefore fuel combustion or various flue dust, impurity that partial combustion process produced can be isolated effectively, have avoided wanting heated glass to pollute.The shape of heat radiation tube can be P shape, U-shaped, W shape or the like.Preferably, flame burner can be heat-storage type burner; Also can be self-preheating type combustor.When utilizing flame burner to carry out the radiator tube heating, should also be provided with the device that matches with it, for example main fuel gas transportation pipeline 21, air line 23 and the smoke discharging pipe 22 shown in the meaning shown in Fig. 2.Replacedly, flame burner can use energy-saving fuel, and for example the burning of fuel such as fuel oil, Sweet natural gas, coal gas, liquefied petroleum gas (LPG) is as the work thermal source.As invent the people and disclose a kind of heat radiation tube in 200410046056.7 the file, can use this kind heat radiation tube as the gas-heating apparatus among this embodiment, the mode by reference is incorporated in this.
In addition, this gas-heating apparatus 14 can also be resistance wire or electric resistance belt heater, number is disclosed well heater among the WO2005/115934 as using the invention people as the international application published of Zhao Yan.
For each plenum chamber, gas-heating apparatus can be provided with one group, also can be provided with one group in each sub-air chamber.As, in the embodiment shown in Fig. 1 and 2, utilize one group of heat radiation tube that a plenum chamber is heated, like this can be by the air flow quantity in each sub-air chamber of control inflow, the homogeneity of regulating heating.In another embodiment, electric resistance belt heater can be placed in each sub-air chamber, realize the gas temperature of each sub-air chamber by the heating power of regulating each well heater, thereby regulate the gas temperature in each heating sub-air chamber (being heating unit).
Flow rate control device 18 can adopt various ways.For example, in a preferred embodiment, flow rate control device 18 is a valve.Flow rate control device 18 can also be other device that plays the flow control effect.Preferably, flow rate control device can be cone valve, butterfly valve or other valves.
As shown in Figure 3, show a kind of simple in structure and cone valve driving mechanism of being easy to drive.This cone valve driving mechanism comprises performer 24, the swing arm 26 that is connected with performer 24, and valve core link rod 25.Valve core link rod 25 lower ends are provided with taper valve core one-body molded or that utilize securing gear (for example holding bolt etc.) to link together.Performer 24 for example can be motor, as stepper-motor, or cylinder etc.When cone valve was worked, performer 24 drove union levers 25 swings, moved in chute thereby drive swing arm 26, and then drove valve body and move up and down, thereby change the flow area area of passage 16, and control enters the gas flow of sub-air chamber 15.As shown in Figure 4, there is shown the driving mechanism of another kind of form.Performer 24 can for example be a cylinder, and cylinder can directly drive valve core link rod 25 ' and move up and down, and comes the aperture of control valve.
As shown in Figure 5, there is shown another kind of valve system.Among the figure, connecting rod 25 links to each other with an intermediate connecting rod 27, and this intermediate connecting rod links to each other with another valve body connecting rod 28, and this valve body connecting rod 28 links to each other with spool.When work, connecting rod 25 moves up and down, and swings thereby drive intermediate connecting rod 27, drives another valve body connecting rod 28 swings thus, the position of control spool, thus realize flow control.
Preferably, the switch or the handle that are used to control drive unit are arranged on the body of heater outside, as are arranged on the sidewall, operate to make things convenient for the staff.
It should be understood that, the drive unit of flow rate control device 18, can be manual, electric motor, electric pushrod, cylinder etc., and the mode of motion of flow rate control device 18 can be various ways such as swing, rotation, translational motion, thereby with the actual internal area dominant discharge by the change passage.
Preferably, the jet plate 8 on the intravital air collecting box 6 of stove can be dismantled, and during maintenance jet plate 8 is removed, and can carry out the care and maintenance of the flow rate control device 18 in the sub-air chamber 15.The burner 14, the blower fan 9 that are installed in the body of heater sidepiece also can be dismantled from the body of heater outside easily, make like this equipment manufacture, installation, maintenance, the maintenance very convenient.Jet plate 8 can be waviness, plate shaped, tubaeform etc., owing to be not purport of the present invention place, does not limit especially.
In another embodiment, not shown, blower fan 9 is positioned at the body of heater outside, the outlet side of blower fan joins by pipeline and plenum chamber inlet mouth, the pipeline that joins with the blower fan inlet end stretches in the furnace chamber, the gas-heating apparatus of described each plenum chamber configuration is a resistance heater, this electric heater unit is arranged in the plenum chamber of each plenum chamber or in the blower fan inlet end pipeline, gas in the furnace chamber is sent into the plenum chamber of plenum chamber through blower fan, come back to the furnace chamber from each sub-air chamber's ejection of plenum chamber again after being heated, constitute the gas-circulating system of each plenum chamber thus.As invent the people and a kind of blower fan is arranged in the structure of the outside of body of heater for the international application published of Zhao Yan number for disclosing among the WO2005/115934, the mode by reference is incorporated in this with it.
Working process of the present invention is as follows: the sheet glass of sheet glass 19 to be heated one side along arrow A among Fig. 1 from body of heater advances fire door 3 and enters body of heater, and be supported on the glass sheets roller-way 5, blower fan 9 is sent into gas in each plenum chamber 6 along arrow C among Fig. 2, the well heater 14 that extends near the heated air pipeline 13 the fans entrance 12 reaches gas heating the temperature of setting, plenum chamber 17 backs that high-temperature gas enters in the air collecting box enter sub-air chamber 15 by the gas passage 16 that connects each sub-air chamber, simultaneously, the gas flow control device 18 that is provided with at passage 16 places, according to the flow of adjusting in advance that area control high-temperature gas enters sub-air chamber 15 that passes through, high-temperature gas blows to sheet glass 19 surfaces and carries out heat exchange with it by being installed in the gas orifice ejection on the jet plate 8 on the air collecting box then.Enter body of heater cavity through the gas after the heat exchange along the arrow B among Fig. 1, and sucked air collecting box 6 by blower fan 9 once more, heated by well heater 14 simultaneously, make it to reenter circulation, and so forth along the direction shown in the arrow D away from sheet glass 19.After sheet glass 19 is heated to preset temperature, the sheet glass plug for outlet 4 along the direction shown in the arrow F among Fig. 1 from the opposite side of body of heater is sent body of heater.
Among superincumbent a plurality of embodiment, main technical scheme is that plenum chamber is divided into plenum chamber and a plurality of sub-air chamber, thereby forms a plurality of heating units in furnace chamber, and each heating unit is carried out independent control.The advantage of mechanism is like this, and is simple in structure, implements economy, utilizes a cover plenum chamber system can realize the independent flow control of a plurality of heating regions.
In another embodiment of the present invention, in order to be implemented in the furnace chamber of heating carry out independent control in to(for) the different zones of glass surface, process furnace has adopted following arrangement: be provided with at least one side of glass sheets passage in furnace chamber and be used for plenum chamber that sheet glass is heated more than 4, plenum chamber is arranged at least 2 * 2 matrix and covers entire working surface in the furnace chamber, each plenum chamber all disposes gas-heating apparatus and gas-circulating system separately, but makes the temperature of high-temperature gas that each plenum chamber sprays and/or the equal independent control of spray volume of high-temperature gas.In Fig. 8, show synoptic diagram with the plenum chamber of 3 * 4 arranged.
Such structure can realize purpose of the present invention equally, promptly by on the direct of travel of glass transmission and stove cross direction, arranging the plenum chamber device respectively perpendicular to this direct of travel, and then each plenum chamber carried out independent control, thereby realize the different heating region of sheet glass is controlled respectively, thereby improve glass edge and the uneven problem of glass region intermediate heat absorption in the prior art.Because gas-heating apparatus and gas-circulating system be equipped with for each plenum chamber, so this texture ratio previous embodiment complex structure, cost is higher relatively.It should be understood that the various features narrated above can be in every way in this embodiment, for simplicity, not repeat specification.
According to another aspect of the present invention, the present invention also provides a kind of method to set up of convection type glass plate heating furnace high-temperature gas spout, comprising:
1) with the high-temperature gas spout that is positioned at glass sheets passage homonymy in the body of heater furnace chamber by the unit setting, each unit comprises several spouts;
2) all unit cell arrangement are become at least 2 * 2 matrix cover entire working surface in the furnace chamber;
3) to the equal independent control of the work of each unit spout, to realize regional control to the high-temperature gas convective heating.
Because with the form of glass plate heating furnace high-temperature gas spout with at least 2 * 2 matrix, and work independent control to each unit spout, promptly by the flow of control by the gas of each spout ejection, can adjust the ejection gas flow of each unit spout according to the endothermic character of glass surface different zones, thereby make the heating homogenizing more of sheet glass, especially realize the regional control of the gas flow of stove cross direction, can compensate the temperature difference problem that causes because the glass region intermediate is different with fringe region heat absorption speed well.
Preferably, in step 3), the spray volume by controlling each unit high-temperature gas and/or spray the temperature of high-temperature gas, realize regional control to the high-temperature gas convective heating.
Convection oven of the present invention makes and respectively heats the arrangement of subregion formation at least 2 * 2 matrix forms in the stove, each sectional hot gas forms under the effect of convection flow fan and flow-guiding channel simply, rational circulation loop, adjusting by air-valve makes the hot gas flow at same heating air chamber laterally produce different heating intensities at body of heater, more help being heated the control of glass sheet temperatures, it efficiently solves the problem of same heating unit to the different zones temperature control, can be at the glass of different size adjustment region temperature accurately, simultaneously, device structure is simple, reduced the quantity of heating unit, greatly reduce the manufacturing cost of equipment, for the convection furnace that uses the burner heating, it is particularly remarkable that its cost reduces amplitude.
Claims (9)
1, a kind of convection type glass plate heating furnace, comprise body of heater, have furnace chamber in the body of heater, be provided with several at least one side of glass sheets passage in the furnace chamber and be used for plenum chamber that sheet glass is heated, plenum chamber is provided with inlet mouth and jet plate, each plenum chamber all disposes gas-heating apparatus and gas-circulating system separately, but makes the temperature of high-temperature gas that each plenum chamber sprays and/or the equal independent control of spray volume of high-temperature gas; It is characterized in that, be provided with a plenum chamber and several sub-air chamber in each described plenum chamber, wherein sub-air chamber is positioned at jet plate institute at one end, isolate mutually between plenum chamber and sub-air chamber and each sub-air chamber, and be separated into several unit one to one with sub-air chamber as the sidewall jet plate of sub-air chamber, be provided with gas passage between each sub-air chamber and the plenum chamber, and be provided with control valve on each gas passage; Gas enters plenum chamber through the plenum chamber inlet mouth, is assigned to each sub-air chamber from plenum chamber, from the jet plate unit ejection of each sub-air chamber, finishes the turnover in plenum chamber thus again; Can control the amount of the gas of each sub-air chamber ejection by the control valve that is arranged on each sub-air chamber's gas passage; The arrangement mode of the arrangement mode of several plenum chambers and each plenum chamber self sub-air chamber combines, and makes the described jet plate unit cell arrangement of on all plenum chambers all become at least 2 * 2 matrix to cover entire working surface in the furnace chamber.
2, process furnace according to claim 1 is characterized in that, comprises 3 the above sub-air chamber in the described plenum chamber, and the matrix form arrangement is pressed by all sub-air chamber.
3, process furnace according to claim 1, it is characterized in that, described several plenum chambers that are arranged in the every side of furnace chamber glass sheets passage are arranged along vertical glass sheets direction, and described several sub-air chamber in the plenum chamber arrange along the glass sheets direction.
4, process furnace according to claim 1, it is characterized in that, described several plenum chambers that are arranged in the every side of furnace chamber glass sheets passage are arranged along the glass sheets direction, and described several sub-air chamber in the plenum chamber arrange along vertical glass sheets direction.
5, process furnace according to claim 4 is characterized in that, described plenum chamber is arranged along vertical glass pane surface direction in described plenum chamber with described sub-air chamber, is separated by by dividing plate between plenum chamber and the sub-air chamber; Described control valve is a cone valve, this cone valve by taper valve core and be set directly at plenum chamber and sub-air chamber between valve opening on the dividing plate constitute, wherein on the taper valve core control stick is installed, the operating mechanism that this control stick one end passes glass plate heating furnace furnace wall and outside joins, and under this operating mechanism is handled, drive the taper valve core motion, finish the opening and closing operations of control valve.
6, process furnace according to claim 4, it is characterized in that, described each plenum chamber all disposes a blower fan separately, this blower fan outlet side joins by pipeline and plenum chamber inlet mouth, the blower fan inlet end joins by pipeline and furnace chamber, the gas-heating apparatus of described each plenum chamber configuration is a resistance heater, this electric heater unit is arranged in the plenum chamber of each plenum chamber or is arranged in the pipeline of blower fan inlet end, gas in the furnace chamber is sent into the plenum chamber of plenum chamber through blower fan, come back to the furnace chamber from each sub-air chamber's ejection of plenum chamber again, constitute the gas-circulating system of each plenum chamber thus.
7, process furnace according to claim 4, it is characterized in that, described each plenum chamber all disposes a blower fan separately, this blower fan outlet side joins by pipeline and plenum chamber inlet mouth, the pipeline that joins with the blower fan inlet end stretches in the furnace chamber, the gas-heating apparatus of described each plenum chamber configuration is the flame radiant tube heater, this well heater is fixed on the sidewall of the furnace body, its radiator tube inserts in the blower fan inlet end pipeline, gas in the furnace chamber is heated in blower fan inlet end pipeline after blower fan is sent into the plenum chamber plenum chamber, come back to the furnace chamber from each sub-air chamber's ejection again, constitute the gas-circulating system of each plenum chamber thus.
8, process furnace according to claim 1 is characterized in that, is provided with in each sub-air chamber of described each plenum chamber in order to detect the temperature sensing dress of gas temperature in this sub-air chamber
9, a kind of convection type glass plate heating furnace, comprise body of heater, have furnace chamber in the body of heater, it is characterized in that, be provided with at least one side of glass sheets passage in the described furnace chamber and be used for plenum chamber that sheet glass is heated more than 4, all plenum chambers are arranged at least 2 * 2 matrix and cover entire working surface in the furnace chamber, each plenum chamber all disposes gas-heating apparatus and gas-circulating system separately, but makes the temperature of high-temperature gas that each plenum chamber sprays and/or the equal independent control of spray volume of high-temperature gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201048271U CN201338988Y (en) | 2009-01-07 | 2009-01-07 | Convection type glass plate heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201048271U CN201338988Y (en) | 2009-01-07 | 2009-01-07 | Convection type glass plate heating furnace |
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| Publication Number | Publication Date |
|---|---|
| CN201338988Y true CN201338988Y (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201048271U Expired - Lifetime CN201338988Y (en) | 2009-01-07 | 2009-01-07 | Convection type glass plate heating furnace |
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| CN (1) | CN201338988Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767927B (en) * | 2009-01-07 | 2011-12-07 | 洛阳兰迪玻璃机器有限公司 | Method for setting high temperature gas spout in convection type glass plate heating furnace and application thereof |
| CN102730951A (en) * | 2012-06-22 | 2012-10-17 | 杭州精工机械有限公司 | Special glass tempering furnace for ultrathin tempered glass production line, and heating method thereof |
| CN106587584A (en) * | 2016-12-08 | 2017-04-26 | 佛山市索奥斯玻璃技术有限公司 | Glass tempering heating furnace and tempered-glass production equipment comprising same |
| CN112066728A (en) * | 2020-09-22 | 2020-12-11 | 江西城桥复合材料有限公司 | Efficient copper smelting furnace |
| CN114096487A (en) * | 2019-07-03 | 2022-02-25 | 格拉司通芬兰公司 | Tempering furnace for glass sheets and method for heating glass sheets for tempering |
| EP2805927B2 (en) † | 2013-05-23 | 2022-06-22 | HEGLA TaiFin Glass Machinery Oy | Glass tempering furnace |
| EP2805926B2 (en) † | 2013-05-23 | 2022-08-24 | HEGLA TaiFin Glass Machinery Oy | Glass tempering furnace and method for heating glass sheets |
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2009
- 2009-01-07 CN CNU2009201048271U patent/CN201338988Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767927B (en) * | 2009-01-07 | 2011-12-07 | 洛阳兰迪玻璃机器有限公司 | Method for setting high temperature gas spout in convection type glass plate heating furnace and application thereof |
| CN102730951A (en) * | 2012-06-22 | 2012-10-17 | 杭州精工机械有限公司 | Special glass tempering furnace for ultrathin tempered glass production line, and heating method thereof |
| CN102730951B (en) * | 2012-06-22 | 2014-09-24 | 杭州精工机械有限公司 | Special glass tempering furnace for ultrathin tempered glass production line, and heating method thereof |
| EP2805927B2 (en) † | 2013-05-23 | 2022-06-22 | HEGLA TaiFin Glass Machinery Oy | Glass tempering furnace |
| EP2805926B2 (en) † | 2013-05-23 | 2022-08-24 | HEGLA TaiFin Glass Machinery Oy | Glass tempering furnace and method for heating glass sheets |
| CN106587584A (en) * | 2016-12-08 | 2017-04-26 | 佛山市索奥斯玻璃技术有限公司 | Glass tempering heating furnace and tempered-glass production equipment comprising same |
| CN106587584B (en) * | 2016-12-08 | 2022-12-06 | 索奥斯(广东)玻璃技术股份有限公司 | Glass tempering heating furnace and tempered glass production equipment comprising same |
| CN114096487A (en) * | 2019-07-03 | 2022-02-25 | 格拉司通芬兰公司 | Tempering furnace for glass sheets and method for heating glass sheets for tempering |
| CN112066728A (en) * | 2020-09-22 | 2020-12-11 | 江西城桥复合材料有限公司 | Efficient copper smelting furnace |
| CN112066728B (en) * | 2020-09-22 | 2023-03-03 | 江西城桥复合材料有限公司 | Efficient copper smelting furnace |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091104 Effective date of abandoning: 20090107 |