CN104402249A - Automobile glass heating method and heating device thereof - Google Patents
Automobile glass heating method and heating device thereof Download PDFInfo
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- CN104402249A CN104402249A CN201410618115.7A CN201410618115A CN104402249A CN 104402249 A CN104402249 A CN 104402249A CN 201410618115 A CN201410618115 A CN 201410618115A CN 104402249 A CN104402249 A CN 104402249A
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- heating
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- coated glass
- delivery roll
- heating zone
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 259
- 239000011521 glass Substances 0.000 title claims abstract description 168
- 238000000034 method Methods 0.000 title claims abstract description 70
- 230000008569 process Effects 0.000 claims description 57
- 230000005540 biological transmission Effects 0.000 claims description 25
- 230000005855 radiation Effects 0.000 claims description 9
- 239000005340 laminated glass Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000005357 flat glass Substances 0.000 description 15
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 230000005465 channeling Effects 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/005—Hot-pressing vitrified, non-porous, shaped glass products
Abstract
The invention relates to the technical field of glass processing, and especially relates to an automobile glass heating method. The method is used for heating coated glass and non-coated glass alternatively loaded on a delivery roller, the coated glass and the non-coated glass are delivered on the delivery roller to a heating furnace, are heated to a preset temperature and are delivered out of the heating furnace, the heating furnace is divided by separator plates into a plurality of linearly arranged heating zones along the delivery direction of the delivery roller, the temperatures of the heating zones monotonously increase along the delivery direction of the delivery roller, and the convection heating air velocities of the heating zones are adjusted according to the automobile glass loaded in all the heating zones. The invention also provides an automobile glass heating device. The method and the device solve the temperature change problem in the furnace and the positioning problem of glass in order to make the glass uniformly and stably heated.
Description
Technical field:
The present invention relates to glass working arts field, particularly a kind of heating means of vehicle glass, in particular for the heating means of a kind of vehicle glass before automobile coated laminated glass forming operation, also provide a kind of heating unit of vehicle glass simultaneously.
Background technology:
The structure of what sandwich glass for automobiles generally adopted is glass+high molecular polymer+glass, we are called sheet by being positioned at outside car at custom, small pieces are called by what be positioned at car, large stretch of and small pieces usually have different characteristics, such as, different compositions, different thickness, different surface property and their combination.In the prior art of sandwich glass for automobiles, sometimes wish that the heating right for different qualities glass mainly adopts the following two kinds mode by first heating these vehicle glasses and then carrying out a forming operation or other any suitable operations:
One, for the big or small slice of different qualities, in same transfer system, heat respectively according to big or small slice characteristic adjustment heating parameters respectively, namely, first can adjust large stretch of heating parameters according to large stretch of characteristic, all sheets are concentrated and are carried out adding post forming, then according to small pieces characteristic adjustment small pieces heating parameters, all small pieces are concentrated and carried out adding post forming;
Two, the mode of a kind of different qualities big or small slice alternately heating in process furnace is described in patent of invention 201180031867.8, by radiation heating is combined with convective heating, simultaneously according to glass different qualities, the skeletal lines of pressure against time added by convected air is set, thus realize alternately loading the different sheet glass of two groups of characteristics on a transfer system, and it is different often to organize sheet glass heating.
The prior art one more than introduced, because large stretch of and small pieces are separately heating, easily cause big or small slice matching degree not high, has opening during pairing;
The weak point of prior art two is:
(1) may cause in stove " channeling "
Because two groups of sheet glass alternately load and different heating, the envrionment temperature of two groups of sheet glass in heat-processed can be different, may to cause in process furnace between different spaces " channeling ", cause two groups of glass all not have to heat at the temperature of expectation.
(2) glass delivery process left and right positioning
The convective heating introduced in patent, utilization be the air-flow boosting in vertically opposite direction, the position of glass in process furnace may be caused suddenly left, suddenly right, and when cannot guarantee final molding, glass position is stablized, sliver when easily causing glass ware forming.
(3) difficulty is realized for coated glass heating large
Car coated glass be generally large stretch of or the side that contacts with high molecular polymer of small pieces by plated film, due to two surface property differences of glass after plated film, there is the surface meeting reverberation of plated film, need more heat just can be heated to the temperature identical with non-coated surface, so just cause that coated glass is more difficult than non-coated glass to be heated: sandwich heating degree varies causes and coated glass can be caused because of inner unbalance stress " warpage "; In order to allow coated surface reach mold temperature, causing non-coated surface overheated, there will be the macroscopic irregularity such as " roller-way vestige ", " scald "; In order to prevent lower than required mold temperature when macroscopic irregularity causes coated surface shaping, glass profile again can be defective.
Shaping for coated glass difficulty, mention " if each comfortable side of the sheet glass of second group of G2 is equipped with a coating; as the coating of low-E; then this warm air distribution system 86 can be operated to provide multiple corresponding heating zone H2, and the side that these heating zone have this coating at sheet glass compared with the H1 of other heating zone provides more substantial convective heating although have in this patent.The example of suitable coating comprises metallic coating, conductive coating as heat reflectivity coating or metal "; " when heating at the cated sheet glass G1 or G2 of upside tool, this coating can reflect most quantity of radiant energy, makes more substantial downward forced convection heating to balance the radiation of this lower surface, conduction and natural convection heating.Therefore, the increase of the convective heating on the surface 90 of this top coating provides required balance, these two surface energy are made to be heated with identical speed and have identical temperature like this, so in its heat-processed, it is smooth that this glass keeps "; but in conjunction with the claim of this patent, this patent only provides three kinds of convective heating modes: 1) only top convective heating; 2) only below convective heating; 3) above and below, both provide convective heating, but forced air flow velocity is identical.
For such as large stretch of plated film, uncoated such a pair sheet glass of small pieces, this patent does not specifically mention the forced air flow velocity relation on large stretch of coated surface and non-coated surface and small pieces two sides, only with the text description that " needing greater amount " is fuzzy like this, those skilled in the art are also difficult to realize.
(4) not mentioned concrete technology parameter, difficult realization
Although this patent is claimed heating means and equipment; but with regard to this section of entirety, compare the introduction of laying particular stress on process furnace; type of heating be provide only for method; not mentioned concrete heating parameters/technique thinking, produces a desired effect according to the type of heating mentioned in this patent is more difficult in possible actual production.
(5) convection heat air nozzle structure is not related to
According to the content disclosed in this patent, hot blast is directly supplied from the aperture of warm air divider transfer tube, such design can cause warm air vertically to heat sheet glass, when all there is hot blast glass plate and below, the gas shock glass of two kinds of relative directions easily causes glass at transmitting procedure moderately gusty air, in addition, air flow line is non-adjustable, is also unfavorable for the control to convective heating in actual production.
(6) energy consumption is large
Illustrating long-range heating system in patent passes in process furnace to provide warm air, and the extra heating of air causes energy consumption large, and also inevitably has heat-energy losses in transport process, and utilization ratio reduces.
Summary of the invention:
Technical problem to be solved by this invention is the above-mentioned technical problem for existing in prior art, provides the heating means of the vehicle glass that a kind of homogeneous heating is stable, also provides a kind of heating unit of vehicle glass simultaneously.
The present invention solves the technical scheme that its technical problem takes: a kind of heating means of vehicle glass, coated glass on delivery roll and non-coated glass is alternately carried in for heating, described coated glass and non-coated glass are used for being paired together to form laminated glass, described coated glass and non-coated glass are uploaded at delivery roll and are input into process furnace and spread out of described process furnace after being heated to design temperature, described process furnace has the length direction parallel with the transmission direction of described delivery roll and the width parallel with the axial direction due of described delivery roll, described process furnace comprises upper of furnace body and lower portion of furnace body, described process furnace heats described coated glass and non-coated glass by upper of furnace body and the convective heating of lower portion of furnace body and the radiation heating of upper of furnace body and lower portion of furnace body, it is characterized in that: in the transmission direction along described delivery roll, described process furnace becomes several linearly aligned heating zone by baffle for separating, the temperature of described heating zone is monotone increasing along the transmission direction of described delivery roll, the vehicle glass that the air velocity of the convective heating of described heating zone can load according to each heating zone regulates.
Further, when the vehicle glass loaded in described heating zone is coated glass, the coated surface of this coated glass is 1.5:1 ~ 3:1 with the ratio of the air velocity of the convective heating of the non-coated surface of this coated glass; When the vehicle glass loaded when described heating zone is the non-coated glass matched with this coated glass, the air velocity of the convective heating that two of this non-coated glass are surperficial is 1/4 ~ 2/3 of the air velocity of the convective heating of the non-coated surface of this coated glass.
Further, on the direction parallel with the axial direction due of described delivery roll, described heating zone has the air velocity of different convective heating.
Further, described upper of furnace body and lower portion of furnace body are equipped with blowpipe, the axis of described blowpipe is parallel with the axis of described delivery roll, the side towards described delivery roll of described blowpipe is provided with at least one row's blowhole on the axial direction due along described blowpipe, the direction of described blowhole towards described delivery roll transmission direction and be 35 ° ~ 60 ° with the angle of horizontal plane, the air of described convective heating is blown on the surface of described coated glass and non-coated glass by the blowhole of blowpipe.
Further, the air in described blowpipe is heated with utilizing the constant temperature of each heating zone, and convective heating is carried out on the surface then blowing to coated glass and non-coated glass.
The present invention also provides a kind of heating unit of vehicle glass simultaneously, comprise process furnace, delivery roll, convection heating element and radiant heater element, described process furnace comprises upper of furnace body and lower portion of furnace body, the delivery roll for alternately loading coated glass and non-coated glass is provided with between described upper of furnace body and lower portion of furnace body, described upper of furnace body and lower portion of furnace body are equipped with convection heating element and radiant heater element, described process furnace has the length direction parallel with the transmission direction of described delivery roll and the width parallel with the axial direction due of described delivery roll, it is characterized in that: in the transmission direction along described delivery roll, described process furnace becomes several linearly aligned heating zone by baffle for separating, described convection heating element comprises air-supply duct and is parallel to the blowpipe of described delivery roll, described air-supply duct is connected with described blowpipe, described air-supply duct is provided with air control valve, the side towards described delivery roll of described blowpipe is provided with at least one row's blowhole.
Further, described blowhole direction towards described delivery roll transmission direction and be 35 ° ~ 60 ° with the angle of horizontal plane.
Further, described air-supply duct coils in the shape of a spiral in described heating zone.
Further, described air-supply duct is successively by pipe connecting and hose connection described blowpipe, and described pipe connecting comprises the first arm, medial leg and the second arm successively, and the caliber of described first arm and the second arm is greater than the caliber of described medial leg.
Further, on the width along described process furnace, described heating zone comprises heating zone, left side, middle heating zone and heating zone, right side successively, heating zone, described left side, middle heating zone and heating zone, right side are equipped with convection heating element, in order to provide the convective heating of different air velocity on the width of described process furnace.
The present invention is owing to taking technique scheme, and it has following beneficial effect:
1) by arranging dividing plate in process furnace, making the heats of each heating zone uniform and stable, solving interior " channeling " problem of the stove that may exist in prior art;
2) by arranging the direction of blowhole, thus ensureing the stability of glass delivery, solving the left and right positioning problem in glass delivery process;
3) by arranging independently heating zone, and being divided into heating zone heating zone, left side, middle heating zone and heating zone, right side to make to have different convective heating on the width of process furnace, solving and the large problem of difficulty is realized for coated glass heating;
4) design concrete technology thinking and parameter, as the air velocity of convective heating, be beneficial to existing technical staff and realize;
5) design a kind of new blow structure and be beneficial to abundant heating;
6) utilize inner furnace temperature to heat, make each heating zone have the air themperature of different convective heating, solve prior art medium-long range and add the large problem of energy consumption that warm air exists.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the heating unit of a kind of vehicle glass of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the close-up schematic view of the convection heating element in Fig. 1;
Attached number in the figure illustrates: 1 is process furnace, and 11 is upper of furnace body, and 12 is lower portion of furnace body, and 13 is heating zone, 14 is heating zone, left side, and 15 is middle heating zone, and 16 is heating zone, right side, and 2 is delivery roll, 3 is convection heating element, and 31 is air-supply duct, and 32 is blowpipe, 33 is blowhole, and 34 is flexible pipe, and 35 is pipe connecting, 36 is the first arm, and 37 is medial leg, and 38 is the second arm, 4 is radiant heater element, and 5 is dividing plate, and 6 is vehicle glass.
Embodiment:
Below in conjunction with accompanying drawing, content of the present invention is described further.
As shown in Fig. 1 to Fig. 2, the heating means of a kind of vehicle glass of the present invention, coated glass on delivery roll 2 and non-coated glass is alternately carried in for heating, described coated glass and non-coated glass are used for being paired together to form laminated glass, described coated glass and non-coated glass are uploaded at delivery roll 2 and are input into process furnace 1 and spread out of described process furnace 1 after being heated to design temperature, described process furnace 1 has the length direction parallel with the transmission direction B of described delivery roll 2 and the width parallel with the axial direction due of described delivery roll 2, described process furnace 1 comprises upper of furnace body 11 and lower portion of furnace body 12, described process furnace 1 heats described coated glass and non-coated glass by upper of furnace body 11 and the convective heating of lower portion of furnace body 12 and the radiation heating of upper of furnace body 11 and lower portion of furnace body 12, it is characterized in that: on the transmission direction B along described delivery roll 2 (i.e. the length direction of process furnace), described process furnace 1 is separated into several linearly aligned heating zone 13 by dividing plate 5, the temperature of described heating zone 13 is monotone increasing along the transmission direction B of described delivery roll 2, the vehicle glass 6 that the air velocity of the convective heating of described heating zone 13 can load according to each heating zone 13 regulates.Adopt independently heating zone 13, can avoid " channeling problem ", heating up gradually along the transmission direction B of described delivery roll 2 in described heating zone 13, according to the parameter of the different qualities adjustment convective heating of loaded vehicle glass, can also finally realize uniform and stable heating in addition.
Preferably, in order to realize heating uniformly loaded different vehicle glasses, when the vehicle glass 6 loaded in described heating zone 13 is coated glass, the coated surface of this coated glass is 1.5:1 ~ 3:1 with the ratio of the air velocity of the convective heating of the non-coated surface of this coated glass; When the vehicle glass 6 loaded when described heating zone 13 is the non-coated glass matched with this coated glass, the air velocity of the convective heating that two of this non-coated glass are surperficial is 1/4 ~ 2/3 of the air velocity of the convective heating of the non-coated surface of this coated glass.
Preferably, be subject to the shape impact of vehicle glass, the left and right sides of vehicle glass is not identical with the air velocity of the convective heating needed for the region intermediate of vehicle glass, for realizing homogeneous heating, on the width of described process furnace 1, described heating zone 13 has the air velocity of different convective heating.
Preferably, described upper of furnace body 11 and lower portion of furnace body 12 are equipped with blowpipe 32, the axis of described blowpipe 32 is parallel with the axis of described delivery roll 2, the side towards described delivery roll 2 of described blowpipe 32 is provided with at least one row's blowhole 33, the direction of described blowhole 33 towards described delivery roll 2 transmission direction B and be 35 ° ~ 60 ° with the angle of horizontal plane, the air of described convective heating is blown on the surface of described coated glass and non-coated glass by the blowhole 33 of blowpipe 32, thus avoids vehicle glass in transmitting procedure, occur left and right positioning.
In order to avoid left and right positioning appears in vehicle glass in transmitting procedure, the air of described convective heating blows on the surface of described coated glass and non-coated glass by the blowhole 33 of blowpipe 32, described blowhole 33 be arranged on the blowpipe 32 being parallel to described delivery roll 2 towards on the side of described delivery roll 2, the direction C of described blowhole 33 towards described delivery roll 2 transmission direction B and be 35 ° ~ 60 ° with the angle of horizontal plane.
Further, the air in described blowpipe 32 is heated with utilizing the constant temperature of each heating zone 13, and convective heating is carried out on the surface then blowing to coated glass and non-coated glass.Utilize inner furnace temperature to heat, make each heating zone 13 have the air themperature of different convective heating, the air themperature of the convective heating of each heating zone 13 and the furnace temperature of each heating zone 13 basically identical, thus realize uniform and stable heating.In addition, this type of heating carries out in stove, and transmitting procedure does not have thermal losses, and only need be heated to suitable temperature, thus has saved energy consumption.
The present invention also provides a kind of heating unit of vehicle glass simultaneously, comprise process furnace 1, delivery roll 2, convection heating element 3 and radiant heater element 4, described process furnace 1 comprises upper of furnace body 11 and lower portion of furnace body 12, the delivery roll 2 for alternately loading coated glass and non-coated glass is provided with between described upper of furnace body 11 and lower portion of furnace body 12, described upper of furnace body 11 and lower portion of furnace body 12 are equipped with convection heating element 3 and radiant heater element 4, described process furnace 1 has the length direction parallel with the transmission direction B of described delivery roll 2 and the width parallel with the axial direction due of described delivery roll 2, it is characterized in that: on the transmission direction B along described delivery roll 2, described process furnace 1 is separated into several linearly aligned heating zone 13 by dividing plate 5, the temperature of described heating zone 13 is monotone increasing along 2 transmission direction B of described delivery roll, the vehicle glass 6 that the air velocity of the convective heating of described heating zone 13 can load according to each heating zone 13 regulates.Adopt independently heating zone 13 can avoid " channeling problem ", heat up gradually along the transmission direction B of described delivery roll 2 and heat glass in described heating zone 13, according to the parameter of the characteristic adjustment convective heating of glass, can also finally realize uniform and stable heating in addition.
As depicted in figs. 1 and 2, described convection heating element 3 comprises air-supply duct 31 and is parallel to the blowpipe 32 of described delivery roll 2, described air-supply duct 31 is connected with described blowpipe 32, described air-supply duct 31 is provided with air control valve, the side towards described delivery roll 2 of described blowpipe 32 is provided with at least one row's blowhole 33 on the axial direction due along described blowpipe 32, the direction C of described blowhole 33 towards described delivery roll 2 transmission direction B and be 35 ° ~ 60 ° with the angle of horizontal plane.By arranging the direction of blowhole, realizing heating uniformly vehicle glass, the stability of glass delivery can also be ensured simultaneously, solve the left and right positioning problem in glass delivery process.Described air-supply duct 31 is provided with air control valve, enters air flow quantity in blowpipe 32, thus carry out different convective heating to different zones for controlling air-supply duct 31.
Further, as shown in Figure 3, described air-supply duct 31 is connected described blowpipe 32 by pipe connecting 35 with flexible pipe 34 successively, described pipe connecting 35 comprises the first arm 36, medial leg 37 and the second arm 38 successively, and the caliber of described first arm 36 and the second arm 38 is greater than the caliber of described medial leg 37.
Further, described air-supply duct 31 coils in the shape of a spiral in described heating zone 13.The object of helical coil utilizes space to store hot gas to greatest extent.
Further, on the width along described process furnace 1, described heating zone 13 comprises heating zone 14, left side, middle heating zone 15 and heating zone, right side 16 successively, heating zone, described left side 14, middle heating zone 15 and heating zone, right side 16 are equipped with convection heating element 3, to provide the convective heating of different air velocity on the width of described process furnace.Be subject to the shape impact of vehicle glass 6, for realizing homogeneous heating, the fringe region of the left and right sides of vehicle glass 6 is not identical with the air velocity of the convective heating needed for the region intermediate of vehicle glass 6, by arranging heating zone 14, left side, middle heating zone 15 and heating zone, right side 16 on the width of process furnace 1, thus realize different convective heating.
Technique thinking:
1. adopt independent heating mode to solve " channeling " problem in stove
Independent heating mode is adopted to heat, take sheet as coated glass, small pieces are non-coated glass is example, big or small slice replaces upper slice, it is plated film or non-plated film that ingress utilizes light eye to respond to glass, when a sheet glass enters a certain independent heating district, according to the convective heating parameter (also can without convective heating) arranged in conjunction with radiation heating (radiation heating utilize be the heating of stove silk), glass is heated, after leaving this heating zone Deng this sheet glass, enter the glass of a slice different qualities again, again according to the convective heating parameter (also can without convective heating) arranged in conjunction with radiation heating, it is heated, independent heating is avoided " channeling problem ".
2. select suitable hot blast angle to solve glass delivery process left and right positioning problem
When adopting convection current boosting, the adjustable angle of the gas hole of convected air, is preferably 35 ° ~ 60 ° angles with glass working direction horizontal plane, is advisable can not cause glass " left and right positioning ".
3. above and below, warm air flow velocity can adjust separately, solves prior art and realizes the large problem of difficulty for coated glass heating
Can according to the parameter of the characteristic of glass adjustment convective heating, above and below coated glass pane is provided during convective heating, above and below forced air flow velocity can be different.
Concrete, for large stretch of plated film, small pieces not plated film, needed for large stretch of coated surface, forced air flow velocity is large, needed for non-coated surface, forced air flow velocity is little, preferably, the ratio of the forced air flow velocity of coated surface and non-coated surface controls, 1.5:1 ~ 3:1 (tapping temperature according to every sheet glass adjusts), can realize better heating coated glass.In addition, small pieces with large stretch of contrastingly, small pieces also can choose suitable convective heating, but warm air flow velocity needed for small pieces will lower than the non-coated surface hot blast speed of sheet, preferably, small pieces warm air flow velocity is 1/4 ~ 2/3 (tapping temperature according to every sheet glass adjusts) of large stretch of non-coated surface hot blast speed.
4. design parameter design, is convenient to realize
1) radiation heating parameter
Arrange 12 independent heating districts in process furnace, the target heating temperature of each heating zone is arranged step by step from 350 ° ~ 680 °, and any one suitable set-up mode all can adopt.
30 ° are increased, namely for the target temperature of each heating zone
| Heating zone | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Target temperature | 350° | 380° | 410° | 440° | 470° | 500° | 530° | 560° | 590° | 620° | 650° | 680° |
Example (heating up by 30 °->40 °->20 ° in Adjacent heating zones) is not all, namely with target temperature speedup
| Heating zone | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Target temperature | 350° | 380° | 410° | 440° | 480° | 520° | 560° | 600° | 620° | 640° | 660° | 680° |
2) convective heating parameter
For large stretch of plated film, small pieces not plated film, utilize electric proportional-regulation valve to control warm air valve opening size, be specially 1 ~ No. 12 heating zone, each heating zone utilizes independently electric proportional-regulation valve to control warm air valve opening, and unlatching scope is 0 ~ 100% unlatching.Preferably, the ratio of the forced air flow velocity of coated surface and non-coated surface controls 1.5:1 ~ 3:1 (tapping temperature according to every sheet glass adjusts), and small pieces warm air flow velocity is 1/4 ~ 2/3 (tapping temperature according to every sheet glass adjusts) of large stretch of non-coated surface hot blast speed.
5. convection heat air nozzle structure design, is beneficial to homogeneous heating
Wide again under tight in wide in the structure of tracheae, the air that such structure is conducive in pipeline fully mixes, and blowhole adjustable angle, be convenient to control air flow line in actual production.
6. utilize in-furnace temperature to add warm air, save energy consumption
The thermal losses saving stove external heat transmitting procedure is on the one hand; In addition, according to contrast patent content, its hot blast temperature is less than in-furnace temperature 20 DEG C ~ 30 DEG C, therefore the hot air temperature for passing into when ensureing that in stove, regional is heated is required hot air temperature, stove external heat must ensure the top temperature of warm air needed for each section heated always, and each zone temperatures is from low to high in the invention stove, to utilize in stove heating only with according to the temperature required different heating in each heating zone to suitable temp, so from this respect, in stove, heating also saves energy consumption than stove external heat.
Equipment constructs:
1. process furnace is made up of 12 relatively independent heating zone, linearly distributes;
2. transport roller way runs through all heating zone;
3. import and export room, each heating zone separates with dividing plate and other heating zone respectively, and dividing plate stays seam to be convenient to glass turnover, and chinky altitude can adjust according to thickness of glass difference, can just by being advisable with glass;
4. process furnace upper and lower has logical compressed-air actuated supervisor, and gas is assigned to each arm by supervisor, and arm is arranged between stove silk and roller-way, coils in the shape of a spiral, and spiral helicine object utilizes space to store hot gas to greatest extent;
5. connect a blowpipe under every root arm, be distributed as example with the blowpipe of a heating zone, along on body of heater length direction, two adjacent blowpipes be spaced apart 30cm, along on body of heater width, two adjacent blowpipes be spaced apart 10cm.Wide again under tight in wide in the structure of pipe connecting, the adjustable angle of blowhole, the benefit of this structure is that contributing to air fully mixes, heating evenly, blowhole goes out the valve regulation of forced air flow velocity passing ratio.
As shown in Figure 3, the flexible flexible pipe 34 of blowpipe 32 connects, blowpipe 32 rotates by electric machine control, be only 35 ~ 60 ° of angles with realizing blowhole 33 with glass working direction horizontal plane due to us, so connect can't affect rotation with flexible flexible pipe 34, Fig. 3 is can one in embodiment, but is not limited only to this.
Above content specifically describes the heating means of a kind of vehicle glass of the present invention and heating unit; but the present invention is not by the limitation of embodiment content described above; the any improvement carried out according to technical essential of the present invention so all, equivalent modifications and replacement etc., all belong to the scope of protection of the invention.
Claims (10)
1. the heating means of a vehicle glass, coated glass on delivery roll and non-coated glass is alternately carried in for heating, described coated glass and non-coated glass are used for being paired together to form laminated glass, described coated glass and non-coated glass are uploaded at the transport plane of delivery roll and are input into process furnace and spread out of described process furnace again after being heated to design temperature, described process furnace has the length direction parallel with the transmission direction of described delivery roll and the width parallel with the axial direction due of described delivery roll, described process furnace comprises upper of furnace body and lower portion of furnace body, described process furnace heats described coated glass and non-coated glass by upper of furnace body and the convective heating of lower portion of furnace body and the radiation heating of upper of furnace body and lower portion of furnace body, it is characterized in that: in the transmission direction along described delivery roll, described process furnace becomes several linearly aligned heating zone by baffle for separating, the temperature of described heating zone is monotone increasing along the transmission direction of described delivery roll, described process furnace is provided with the gas flow divider system of the air velocity for regulating described convective heating, the vehicle glass that the air velocity of the convective heating of described heating zone can load according to each heating zone regulates.
2. the heating means of vehicle glass according to claim 1, it is characterized in that: when the vehicle glass loaded in described heating zone is coated glass, the coated surface of this coated glass is 1.5:1 ~ 3:1 with the ratio of the air velocity of the convective heating of the non-coated surface of this coated glass; When the vehicle glass loaded when described heating zone is the non-coated glass matched with this coated glass, the air velocity of the convective heating that two of this non-coated glass are surperficial is 1/4 ~ 2/3 of the air velocity of the convective heating of the non-coated surface of this coated glass.
3. the heating means of vehicle glass according to claim 1, is characterized in that: on the width of described process furnace, and described heating zone has the air velocity of different convective heating.
4. the heating means of vehicle glass according to claim 1, it is characterized in that: described upper of furnace body and lower portion of furnace body are equipped with blowpipe, the axis of described blowpipe is parallel with the axis of described delivery roll, the side towards described delivery roll of described blowpipe is provided with at least one row's blowhole, the direction of described blowhole towards described delivery roll transmission direction and be 35 ° ~ 60 ° with the angle of horizontal plane, the air of described convective heating is blown on the surface of described coated glass and non-coated glass by described blowhole.
5. the heating means of vehicle glass according to claim 4, is characterized in that: the air in described blowpipe is heated with utilizing the constant temperature of each heating zone, and convective heating is carried out on the surface then blowing to coated glass and non-coated glass.
6. the heating unit of a vehicle glass, comprise process furnace, delivery roll, convection heating element and radiant heater element, described process furnace comprises upper of furnace body and lower portion of furnace body, the delivery roll for alternately loading coated glass and non-coated glass is provided with between described upper of furnace body and lower portion of furnace body, described upper of furnace body and lower portion of furnace body are equipped with convection heating element and radiant heater element, described process furnace has the length direction parallel with the transmission direction of described delivery roll and the width parallel with the axial direction due of described delivery roll, it is characterized in that: in the transmission direction along described delivery roll, described process furnace becomes several linearly aligned heating zone by baffle for separating, described convection heating element comprises air-supply duct and is parallel to the blowpipe of described delivery roll, described air-supply duct is connected with described blowpipe, described air-supply duct is provided with air control valve, the side towards described delivery roll of described blowpipe is provided with at least one row's blowhole on the axial direction due along described blowpipe.
7. the heating unit of vehicle glass according to claim 6, is characterized in that: the direction of described blowhole towards described delivery roll transmission direction and be 35 ° ~ 60 ° with the angle of horizontal plane.
8. the heating unit of vehicle glass according to claim 6, is characterized in that: described air-supply duct coils in the shape of a spiral in described heating zone.
9. the heating unit of vehicle glass according to claim 6, it is characterized in that: described air-supply duct is successively by pipe connecting and hose connection described blowpipe, described pipe connecting comprises the first arm, medial leg and the second arm successively, and the caliber of described first arm and the second arm is all greater than the caliber of described medial leg.
10. the heating unit of vehicle glass according to claim 6, it is characterized in that: on the width along described process furnace, described heating zone comprises heating zone, left side, middle heating zone and heating zone, right side successively, heating zone, described left side, middle heating zone and heating zone, right side are equipped with convection heating element, in order to provide the convective heating of different air velocity on the width of described process furnace.
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| CN201410618115.7A CN104402249B (en) | 2014-11-05 | 2014-11-05 | Automobile glass heating method and heating device thereof |
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| CN201410618115.7A CN104402249B (en) | 2014-11-05 | 2014-11-05 | Automobile glass heating method and heating device thereof |
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| CN104402249A true CN104402249A (en) | 2015-03-11 |
| CN104402249B CN104402249B (en) | 2017-02-15 |
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| CN107056084A (en) * | 2017-05-31 | 2017-08-18 | 信义节能玻璃（芜湖）有限公司 | Three-silver-layer low-radiation coated glass and manufacture method and application |
| CN113636747A (en) * | 2021-09-14 | 2021-11-12 | 福耀集团(福建)机械制造有限公司 | Glass heating furnace and glass heating method |
| CN113845295A (en) * | 2021-09-14 | 2021-12-28 | 福耀集团(福建)机械制造有限公司 | Convection heating element for glass heating furnace |
| CN114630458A (en) * | 2022-03-14 | 2022-06-14 | 福建晶烯新材料科技有限公司 | Manufacturing process of transparent semiconductor heating toughened glass |
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| CN107056084A (en) * | 2017-05-31 | 2017-08-18 | 信义节能玻璃（芜湖）有限公司 | Three-silver-layer low-radiation coated glass and manufacture method and application |
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| CN113845295B (en) * | 2021-09-14 | 2023-10-13 | 福耀集团(福建)机械制造有限公司 | Convection heating element for glass heating furnace |
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| CN114630458A (en) * | 2022-03-14 | 2022-06-14 | 福建晶烯新材料科技有限公司 | Manufacturing process of transparent semiconductor heating toughened glass |
| CN114630458B (en) * | 2022-03-14 | 2023-10-27 | 福建晶烯新材料科技有限公司 | Manufacturing process of transparent semiconductor heating toughened glass |
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Application publication date: 20150311 Assignee: FUYAO GLASS INDUSTRY GROUP Co.,Ltd. Assignor: FUJIAN WANDA AUTOMOBILE GLASS INDUSTRY Co.,Ltd. Contract record no.: X2023350000432 Denomination of invention: A heating method and heating device for automotive glass Granted publication date: 20170215 License type: Common License Record date: 20231116 |