CN103373806B - Convection heating system of toughening furnace - Google Patents
Convection heating system of toughening furnace Download PDFInfo
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- CN103373806B CN103373806B CN201210124837.8A CN201210124837A CN103373806B CN 103373806 B CN103373806 B CN 103373806B CN 201210124837 A CN201210124837 A CN 201210124837A CN 103373806 B CN103373806 B CN 103373806B
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- heating system
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- convection tube
- fixed support
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Abstract
The invention provides a convection heating system of a toughening furnace, which is characterized by comprising an air compressor, an air storage tank, a precision filter A, a freezing type dryer, a precision filter B, a precision pressure regulating valve, a pneumatic ball valve, an electric proportional valve, a flow dividing pipe, a convection pipe and a fixed support which are sequentially connected. The invention aims to provide a convection heating system of a toughening furnace, which can process LOW-emissivity (LOW-E) coated glass with high efficiency and high quality.
Description
Technical field
The present invention relates to a kind of air convection system producing safety glass, belong to annealing furnace technical field.
Background technology
Produce the heating system of the annealing furnace of safety glass in the market, mainly by heating furnace silk, radiant panel and heating
Control section forms.This kind of heating system is mainly used in the processing of white glass, and the processing to Low emissivity (low-e) coated glass
Extremely difficult.
Refer to Fig. 1, Fig. 1 is existing heating system heats white glass (clear glass) and low-e glass (low-e
Glass contrast schematic diagram).The difficult main cause of existing heating system heats low-e glass is the film of low-e glass surface
Layer reflection heat energy, leads to glass to be difficult to absorb heat, and causes the heating of glass upper and lower surface irregular, makes glass produce warpage, and then produce
Various quality problems, and working (machining) efficiency and its low.
Content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of annealing furnace convection heating system, can be efficient, high
The glass such as quality processing Low emissivity (low-e) plated film.
Brief description
The further feature of the present invention, feature, advantage and benefit will be become more by the detailed description below in conjunction with accompanying drawing
Obviously.Wherein:
Fig. 1 is the right of existing heating system heats white glass (clear glass) and low-e glass (low-e glass)
Compare schematic diagram.
Fig. 2 is the structural representation of annealing furnace convection heating system provided in an embodiment of the present invention.
Fig. 3 is the principle of heating figure of the annealing furnace convection heating system of the present embodiment.
Fig. 4 is the structural representation of high temperature resistant stainless steel convection tube.
Specific embodiment
Below, accompanying drawing will be combined to describe embodiments of the invention in detail.
Refer to Fig. 2, Fig. 2 is the structural representation of annealing furnace convection heating system provided in an embodiment of the present invention.This steel
Change the air compressor (air compressor machine) that stove convection heating system includes sequentially connecting, full of clean compressed air (p≤0.6mp)
Air accumulator, accurate filter a, freezing type drier (cooling driers), accurate filter b, precise pressure regulating valve, pneumatic ball valve, electricity
Gas proportioning valve, isocon and convection tube.This annealing furnace convection heating system also includes fixed support.
Convection tube is fixed on radiant panel by the fixed support being welded on radiant panel, and convection tube is fabricated to u shape pipe, with
It is fully warmed-up beneficial to compressed air, absorb heat, convection tubeOn apertureTwo rows (interval 100mm) are divided to become 90 degree
Angle down uniformly, be arranged symmetrically, lay a convection tube every 300mm, and convection tube be symmetrically arranged, to guarantee stove
Cross-ventilation even intensity everywhere in thorax, convection tube is stretched out from upper of furnace body and is docked with airflow tube, isocon again with main pipeline and
Control valve connects.
Refer to Fig. 3, Fig. 3 is the principle of heating figure of the annealing furnace convection heating system of the present embodiment.Glass enter after stove by
Electric control system (Programmable Logic Controller plc and touch-screen), according to the parameter pre-setting, opens pneumatic ball valve and electricity on time
Gas proportioning valve, compressed air enters in stove preheating and then will according to setting to flow curve (convection intensity changes over)
Heat energy is ejected into glass surface, carries out forced convertion heating to it, in the hope of reaching optimal heating effect.
The open degree of electric Proportion valve can be adjusted using analog quantity (4---20ma electric current), thus precise control passes through gas
The pressure of body and flow.
Refer to Fig. 4, Fig. 4 is the structural representation of convection tube.Described convection current tube material is high temperature resistant stainless steel
(0cr25ni20), pipe design becomes u shape pipe, is greatly improved the ability that compressed air absorbs radiant panel heat energy.On terminal tube wall
It is uniformly distributed the aperture that two rows (spacing 100mm) become 45 (90) degree angles
Described fixed support materials'use high temperature resistant stainless steel (0cr25ni20), can be with same stainless of material
Steel electrode is welded on stainless steel radiant panel, then fixes convection tube with high temperature resistant pin.
Realization in order to demonstrate the invention, describes above-mentioned specific embodiment.But other changes of the present invention
Change and change, will be readily apparent to one having ordinary skill, in the range of essence disclosed in this invention and basic principle
Any modification/change or imitate conversion to broadly fall into the claims of the present invention.
Claims (2)
1. a kind of annealing furnace convection heating system it is characterised in that include sequentially be connected air compressor, air accumulator, first
Accurate filter, freezing type drier, the second accurate filter, precise pressure regulating valve, pneumatic ball valve, electric Proportion valve, isocon
And convection tube, and fixed support；Described fixed support is high temperature resistant stainless steel fixed support, and is propped up with described fixation with material
Frame identical stainless steel electrode is welded on stainless steel radiant panel, and described convection tube passes through high temperature resistant pin and described fixed support
It is fixedly connected；Lay a described convection tube every 300mm, and described convection tube is symmetrically arranged, described convection tube
A diameter ofTwo rows aperture in angle of 45 degrees, each two aperture adjacent with another row of wherein one row's aperture
The distance between be equal, the distance between two adjacent apertures of same row's aperture are 200mm；Described electric Proportion valve bag
Include the device of the open degree adjusting described electric Proportion valve using analog quantity.
2. annealing furnace convection heating system as claimed in claim 1 is it is characterised in that described convection tube is high temperature resistant stainless steel
The u shape pipe made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210124837.8A CN103373806B (en) | 2012-04-26 | 2012-04-26 | Convection heating system of toughening furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210124837.8A CN103373806B (en) | 2012-04-26 | 2012-04-26 | Convection heating system of toughening furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103373806A CN103373806A (en) | 2013-10-30 |
| CN103373806B true CN103373806B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210124837.8A Active CN103373806B (en) | 2012-04-26 | 2012-04-26 | Convection heating system of toughening furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN103373806B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164617B (en) * | 2017-06-15 | 2019-04-19 | 辽宁科技大学 | A kind of rail that bending deformation is controllable integrally sprays wind quenching fire imitative experimental appliance online |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495170U (en) * | 2009-06-26 | 2010-06-02 | 刘廷振 | High-pressure air convection circulating heating device |
| CN202038975U (en) * | 2011-04-19 | 2011-11-16 | 洛阳北方玻璃技术股份有限公司 | Compressed air convection device for heat exchange in furnace |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI114631B (en) * | 2001-10-01 | 2004-11-30 | Tamglass Ltd Oy | Method and apparatus for heating glass sheets for tempering |
| DE102009037299A1 (en) * | 2009-08-14 | 2011-08-04 | Leybold Optics GmbH, 63755 | Device and treatment chamber for the thermal treatment of substrates |
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2012
- 2012-04-26 CN CN201210124837.8A patent/CN103373806B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495170U (en) * | 2009-06-26 | 2010-06-02 | 刘廷振 | High-pressure air convection circulating heating device |
| CN202038975U (en) * | 2011-04-19 | 2011-11-16 | 洛阳北方玻璃技术股份有限公司 | Compressed air convection device for heat exchange in furnace |
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| Publication number | Publication date |
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| CN103373806A (en) | 2013-10-30 |
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