CN203403006U - Internal circulation forced convection heating device for glass toughening furnace - Google Patents
Internal circulation forced convection heating device for glass toughening furnace Download PDFInfo
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- CN203403006U CN203403006U CN201320273518.3U CN201320273518U CN203403006U CN 203403006 U CN203403006 U CN 203403006U CN 201320273518 U CN201320273518 U CN 201320273518U CN 203403006 U CN203403006 U CN 203403006U
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- forced convection
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Abstract
The utility model discloses an internal circulation forced convection heating device for a glass toughening furnace. Convection fans of the internal circulation forced convection heating device are arranged on the two sides of the top of the internal circulation forced convection heating device; draught distributing boxes are connected with the convection fans and are symmetrically arranged on the two sides of a forced convection device; heating wires are arranged below the convection fans; an air outlet pipe is arranged below the heating wires; a ceramic pipe is arranged at the bottom of the internal circulation forced convection heating device; glass is placed on the ceramic pipe. According to the internal circulation forced convection heating device, two convection fans are arranged to form a forced convection circulation process so as to uniformly heat the top and the bottom of the glass; meanwhile, due to a special structure that the convection fans and the heating device are separately arranged, the accurate control over the temperature of each part of the glass is realized, the deformation and the stress are reduced, and the optical quality of the toughened glass is favorably improved. In addition, the internal circulation forced convection heating device has the advantages of simple structure, convenience in operation, low cost and convenience in maintenance and repair.
Description
Technical field
The utility model belongs to glass tempering furnace studying technological domain, relates in particular to a kind of internal recycle forced convection heating unit for glass tempering furnace.
Background technology
Glass tempering (referring generally to physical toughened) be exactly by glass heats after specified temp, by air-cooled or other method, make glass surface cooling rapidly, thereby make glass outer surface form one deck compressive stress layer, existence due to bearing stress, make toughened glass can improve 4～5 times than simple glass intensity, for dull and stereotyped toughened glass, for guaranteeing planeness and the stress equilibrium of glass surface, require glass in heat-processed, whole area should be heated evenly unanimously, in recent years, along with popularizing of low radiation (low-e) glass, requirement to tempering technology is more and more higher, because low-e glass surface has the high characteristic reflecting of centering far infrared rays, make low-e glass very low for common radiation absorptivity, therefore traditional radiation heating annealing furnace can not meet low-e glass tempering demand increasing on market, forced convection annealing furnace is in the market divided into compressed air convection stove and internal recycle blower fan forced convection oven, compressed air convection stove is owing to there being entering of cool exterior air, stove inner air and outer air pressure imbalance, therefore calorific loss is large, efficiency is low, can only complete the tempering of less demanding online low-e glass, existing internal recycle blower fan forced convection oven generally adopts blower fan side or overhead mode.
Existing internal recycle blower fan forced convection oven generally adopts blower fan side or overhead mode, side blower fan is because blower fan main shaft is oversize through thermal insulation layer back boom, very easily produce vibration, failure rate is high, and due to space constraint, draught fan impeller diameter is less than normal, blast is low, convection effects is general, overhead type draught fan impeller main shaft stress balance, be difficult for producing vibration, but in the middle of existing overhead type structure is, single blower fan is arranged, power of fan is large, easily cause return air inhomogeneous, and the general rigidity in furnace roof mid-way is the poorest, therefore to furnace binding rigidity, require high, cost increases, existing convection device all adopts the structure with heating unit integrated installation, cause heater strip to change, maintenance difficult, maintenance cost is high, use inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of internal recycle forced convection heating unit for glass tempering furnace, is intended to solve the high problem of maintenance difficult, cost that existing internal recycle convection device return air is inhomogeneous and adopt integrated installation to bring due to convection device and heating unit.
The utility model is to realize like this, an internal recycle forced convection heating unit for glass tempering furnace, the described internal recycle forced convection heating unit for glass tempering furnace comprises: convection flow fan, draught distributing box, heater strip, air outlet tube, glass, vitrified pipe;
Described convection flow fan is arranged on the both sides at the top of described internal recycle forced convection heating unit, described draught distributing box connects described convection flow fan, described draught distributing box is symmetricly set on the both sides of described forced convection device, described heater strip is arranged on the below of described convection flow fan, described air outlet tube is arranged on described below heater strip, described vitrified pipe is arranged on the bottom of described internal recycle forced convection heating unit, described glass be arranged on described vitrified pipe above.
Further, described heater strip interval is longitudinally distributed in the below of convection flow fan uniformly.
Further, described air outlet tube interval is longitudinally distributed in the below of heater strip uniformly.
Further, described air outlet tube and draught distributing box adopt upper and lower mode of connection.
Novel internal circulation forced convection heating unit for glass tempering furnace of the present utility model, by two convection flow fan are set, forms a forced convection working cycle, makes lower heating on glass more even; Simultaneously, the special construction that convection flow fan and heating unit are installed separately, when making convective heating, heater strip also can carry out radiation heating to glass by the gap between air outlet tube, realize the accurate control of glass each several part temperature, Reducing distortion and stress, be conducive to improve the optical quality of toughened glass; Convection device and heating unit are installed separately, and also make this device maintenance easier.Air outlet tube and draught distributing box adopt upper and lower mode of connection, are conducive to eliminate air outlet tube because of the deformation stress of the length direction that adds thermal expansion and cause, make simultaneously air outlet tube installation, dismantle more convenient.In addition, the utility model one-piece construction is simple, and cost is low, and installation, maintenance and maintenance are convenient, have good actual application value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the internal recycle forced convection heating unit for glass tempering furnace that provides of the utility model embodiment.
In figure: 1, convection flow fan; 2, draught distributing box; 3, heater strip; 4, air outlet tube; 5, glass; 6, vitrified pipe; 7, insulating cotton layer.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the internal recycle forced convection heating unit structure for glass tempering furnace that the utility model provides.For convenience of explanation, only show the part relevant to the utility model.
Internal recycle forced convection heating unit for glass tempering furnace of the present utility model, should comprise for the internal recycle forced convection heating unit of glass tempering furnace: convection flow fan, draught distributing box, heater strip, air outlet tube, glass, vitrified pipe;
Convection flow fan is arranged on the both sides at the top of internal recycle forced convection heating unit, draught distributing box connects convection flow fan, draught distributing box is symmetricly set on the both sides of forced convection device, heater strip is arranged on the below of convection flow fan, air outlet tube is arranged on below heater strip, vitrified pipe is arranged on the bottom of internal recycle forced convection heating unit, glass be arranged on vitrified pipe above.
As a prioritization scheme of the utility model embodiment, heater strip interval is longitudinally distributed in the below of convection flow fan uniformly.
As a prioritization scheme of the utility model embodiment, air outlet tube interval is longitudinally distributed in the below of heater strip uniformly.
As a prioritization scheme of the utility model embodiment, air outlet tube and draught distributing box adopt upper and lower mode of connection.
Below in conjunction with drawings and the specific embodiments, application principle of the present utility model is further described.
As shown in Figure 1, the internal recycle forced convection heating unit for glass tempering furnace of the utility model embodiment is mainly comprised of convection flow fan 1, draught distributing box 2, heater strip 3, air outlet tube 4, glass 5, vitrified pipe 6, insulating cotton layer 7; Heating unit and the convection device of the utility model strengthening convection device are installed separately, and the double overhead of convection flow fan 1 is in the Novel internal circulation forced convection heating unit for glass tempering furnace provided by the utility model; Air collecting box 2 is arranged symmetrically in the both sides of this forced convection device, is connected respectively with convection flow fan 1; Heater strip 3 is longitudinally evenly arranged in the below of convection flow fan 1; Below heater strip 3, longitudinally evenly distributed one list airduct 4.
Principle of work of the present utility model is: air-flow is at this forced convection device internal recycle, and the heat that convection flow fan 1 produces heater strip 3 blows to glass 5 surfaces, and glass 5 is heated evenly.The circulation that convection flow fan 1 forms is carried out completely in body of heater, forms a pump circulation process, glass 5 is heated up and down more even; Heating unit and convection device are installed separately, and in the time of convective heating, heater strip 3 also can carry out radiation heating to glass 5 by the gap between air outlet tube 4, realizes accurate control, Reducing distortion and the stress of glass 5 each several part temperature.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. for an internal recycle forced convection heating unit for glass tempering furnace, it is characterized in that, the described internal recycle forced convection heating unit for glass tempering furnace comprises: convection flow fan, draught distributing box, heater strip, air outlet tube, glass, vitrified pipe;
Described convection flow fan is arranged on the both sides at the top of described internal recycle forced convection heating unit, described draught distributing box connects described convection flow fan, described draught distributing box is symmetricly set on the both sides of described forced convection device, described heater strip is arranged on the below of described convection flow fan, described air outlet tube is arranged on described below heater strip, described vitrified pipe is arranged on the bottom of described internal recycle forced convection heating unit, described glass be arranged on described vitrified pipe above.
2. the internal recycle forced convection heating unit for glass tempering furnace as claimed in claim 1, is characterized in that, described heater strip interval is longitudinally distributed in the below of convection flow fan uniformly.
3. the internal recycle forced convection heating unit for glass tempering furnace as claimed in claim 1, is characterized in that, described air outlet tube interval is longitudinally distributed in the below of heater strip uniformly.
4. the internal recycle forced convection heating unit for glass tempering furnace as claimed in claim 1, is characterized in that, described air outlet tube and draught distributing box adopt upper and lower mode of connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320273518.3U CN203403006U (en) | 2013-05-20 | 2013-05-20 | Internal circulation forced convection heating device for glass toughening furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320273518.3U CN203403006U (en) | 2013-05-20 | 2013-05-20 | Internal circulation forced convection heating device for glass toughening furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403006U true CN203403006U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320273518.3U Expired - Fee Related CN203403006U (en) | 2013-05-20 | 2013-05-20 | Internal circulation forced convection heating device for glass toughening furnace |
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| CN (1) | CN203403006U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986528A (en) * | 2017-05-04 | 2017-07-28 | 绥中远图科技发展有限公司 | A kind of glass tempering furnace convection heating system |
| CN111072270A (en) * | 2019-04-30 | 2020-04-28 | 索奥斯(广东)玻璃技术股份有限公司 | High-efficient glass heating device |
| CN111099816A (en) * | 2020-01-13 | 2020-05-05 | 洛阳德勤机械设备有限公司 | Forced convection method and device for toughened glass heating furnace |
-
2013
- 2013-05-20 CN CN201320273518.3U patent/CN203403006U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986528A (en) * | 2017-05-04 | 2017-07-28 | 绥中远图科技发展有限公司 | A kind of glass tempering furnace convection heating system |
| CN111072270A (en) * | 2019-04-30 | 2020-04-28 | 索奥斯(广东)玻璃技术股份有限公司 | High-efficient glass heating device |
| CN111099816A (en) * | 2020-01-13 | 2020-05-05 | 洛阳德勤机械设备有限公司 | Forced convection method and device for toughened glass heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20200520 |
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| CF01 | Termination of patent right due to non-payment of annual fee |