CN202953934U - Metal tubular electric heater provided with a plurality of heating areas in glass annealing furnace - Google Patents
Metal tubular electric heater provided with a plurality of heating areas in glass annealing furnace Download PDFInfo
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- CN202953934U CN202953934U CN 201220568058 CN201220568058U CN202953934U CN 202953934 U CN202953934 U CN 202953934U CN 201220568058 CN201220568058 CN 201220568058 CN 201220568058 U CN201220568058 U CN 201220568058U CN 202953934 U CN202953934 U CN 202953934U
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- electric heater
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- annealing furnace
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Abstract
The utility mode relates to the technical field of heating element equipment of an annealing furnace in the production process of float glass, in particular to a metal tubular electric heater provided with a plurality of heating areas in a glass annealing furnace. The metal tubular electric heater provided with the plurality of heating areas in the glass annealing furnace comprises a plurality of groups of electrical heating tubes, a framework, supports and a plug, and is characterized in that each electrical heating tube is a heating area and is divided into a heating part and a wiring bar part, the heating part of each electrical heating tube is wound to form a spiral tube with an oval or long circular section, the wiring bar parts of the electrical heating tubes penetrate through the insides of the spiral tubes, the plurality of electrical heating tubes are connected in series and then are fixed on the through long framework inside all spiral tubes, and a plurality of the supports are transversely arranged above the framework and are supported on guide rails inside a furnace body. The metal tubular electric heater provided with the plurality of heating areas in the glass annealing furnace is small in height, light in weight and large in power, saves the manufacturing or modification cost of the annealing furnace and the cost of civil construction, can be directly installed on the furnace body of an existing float glass process annealing furnace, is simple and convenient to operate, is safe and reliable, and is easy to overhaul. Broken glass is cleaned easily, and the electric heater can be installed and detached conveniently through an installation hole in the side face of the furnace body.
Description
[technical field]
The utility model relates to the heating unit equipment technical field of annealing furnace in float glass, is mainly that a kind of lear is added hot-zone tubular metal electric heater
[background technology]
Electric heater is that the important process of lear is adjusted means, is arranged on the above and below of annealing furnace heat preservation zone roller, for the transverse temperature difference of adjusting glass-board surface and the heat radiation that compensates the kiln body.
Fig. 3 is the scheme of installation of electrically heated in annealing furnace, and the glass working direction is perpendicular to paper.In the kiln body, the sheet glass upper and lower is provided with the electric heater guide rail, and electric heater is arranged on guide rail, and it is wide that its heated perimeter covers whole glass, is divided into a plurality of heating zone on the sheet glass cross direction, and each heating zone is switch and adjustment heating power separately.
In prior art, the elongated electric heater of annealing furnace generally adopts the resistance wire structure, its structure as shown in Figure 1, framework is made by heat-resistance stainless steel, wiring rod and porcelain rod are fixed on framework, the Heating element resistance wire is wrapped on the porcelain rod, and whole electric heater is divided into 2～8 heating zone at the width of annealing furnace.Because this electric heater has adopted the general frame structure, and a large amount of porcelain rods have been installed, have therefore been caused electric heater overweight, practicality and cost are high not.
This structure electric heater has following several shortcoming:
1. annealing furnace is installed basic civil engineering cost and kiln body manufacturing cost is higher, transformation project particularly, and while on there is no the annealing furnace of elongated electric heater, increasing elongated electric heater, cost is higher.Because electric heater is very heavy, the essential good rigidly of guide rail of electric heater is installed, this makes the guide rail volume larger, larger to the requirements of installation space of kiln body.As shown in Figure 2, space on the kiln body plate of this elongated electric heater, under plate is installed, than the large 200mm of the kiln body that elongated electric heater is not installed left and right.Consistent for the front and back absolute altitude that guarantees mill floor, the installation basis below this part kiln body must sink highly corresponding, to guarantee the consistent of roll surface absolute altitude.These have increased in manufacture and the civil engineering cost, particularly transformation project of annealing furnace, and not only original annealing furnace kiln body needs to change, and need to dig out melt pit original moving back on mill floor, has greatly increased improvement cost.
2. electric heater moving resistance on guide rail is large, installs and extract out the electric heater difficulty.Electric heater is on guide rail, by the open holes of side wall both sides, can extract electric heater out in kiln, as shown in Figure 2 in kiln by framework both sides channel steel support.When electrically heated weight makes mobile electric heater greatly, friction resistance is very large, in maintenance electric heater or cleaning kiln during glass cullet, very difficult from extracting electric heater out in kiln.
3. under plate, electric heater is fragile.Because this kind of electric heater heater element resistance silk is directly exposed in the kiln body, the glass cullet that easily dropped, tin ash equivalent damage, cause electrically heated to damage.
[summary of the invention]
The utility model is exactly in order to solve deficiency of the prior art and defect, and a kind of novel structure is provided, and safe and reliable, economical and practical lear is added hot-zone tubular metal electric heater.
For achieving the above object, provide a kind of lear to add hot-zone tubular metal electric heater, comprise many group electrothermal tubes, framework, support and stopper, it is characterized in that every electrothermal tube is a heating zone, be divided into heating part and wiring rod part, the electrothermal tube heating part turns to section for oval or oblong helix, the wiring rod part of electrothermal tube is passed from the inside of spiral tube, after a plurality of electrothermal tubes are cascaded, be fixed on again on the elongated framework through all spiral tubes inside, the framework top laterally is provided with on the guide rail of many stent support in the kiln body.
Described framework is made by heat-resistance stainless steel.
Make 2 ~ 8 heating zone on described electric heater length direction, the width L of electric heater is 60 ~ 400mm, and pitch S is 20 ~ 100mm.
The utility model compared with the existing technology, has improved deficiency and defect many in the prior art, and its electrical heated appliance has the following advantages:
This electrical heated appliance has the following advantages:
1. highly little, lightweight, power is large.Electricity of the present utility model adds height can accomplish 60 ~ 100mm; And weight only have equal-wattage and subregion the ordinary porcelain bar electric heater 30%; Because the power maximum of width dimensions and pitch setting range Da，Mei district electric heater can be accomplished 10kW.
2. annealing furnace manufacture or transformation and civil engineering cost have been saved.And because the installation of this electric heater does not have special requirement to space, annealing furnace kiln body upper and lower part, can be directly installed on the kiln body of existing float glass process annealing furnace, while therefore on there is no the kiln body of elongated electric heater, increasing elongated electric heater, do not need to change housing, need to not dig melt pit at original mill floor yet, convenient and practical.
3. be easy to maintenance and cleaning glass cullet.Due to lightweight, electric heater can be easily by the open holes installation and removal of kiln body side surface.
[accompanying drawing explanation]
The elongated electric heater structure schematic diagram that Fig. 1 (a) is annealing furnace in prior art;
Fig. 1 (b) is the structural representation of the middle A of Fig. 1 (a) to view;
Fig. 2 is that in prior art, electric heater passes through framework both sides channel steel support structural representation on guide rail in kiln;
Fig. 3 is the mounting structure schematic diagram of electrically heated in annealing furnace in prior art;
Fig. 4 (a) is primary structure schematic diagram of the present utility model;
The A that Fig. 4 (b) is the utility model Fig. 4 (a) is to the view structure schematic diagram;
The structural representation that Fig. 5 (a)～Fig. 5 (c) is electrothermal tube wiring rod different lengths in the utility model embodiment;
Fig. 5 (d) is oval-shaped enforcement illustration for electrothermal tube heating part section in the utility model Fig. 5 (a) electric heater;
Fig. 5 (e) is oblong enforcement illustration for electrothermal tube heating part section in the utility model Fig. 5 (a) electric heater;
Fig. 5 (f) is oblong enforcement illustration for electrothermal tube heating part section in the utility model Fig. 5 (b) electric heater;
Fig. 5 (g) is oblong enforcement illustration for electrothermal tube heating part section in the utility model Fig. 5 (c) electric heater;
Fig. 6 is the mounting structure schematic diagram of the utility model electrically heated in annealing furnace;
As shown in the figure, 1. framework 2. porcelain rod 3. wiring rod 4. resistance wire 5. heating zone 1 6. heating zone 2 7. heating zone n 8.n group tubular metal heating unit 9. kiln body top 10. electrically heated open holes 11. roller 12. electric heater 13. guide rail 14. kiln body bottom 15. concrete foundation 18. sinking melt pit 19. mill floor 20. electrothermal tube 21. stopper 22. framework 23. support 24. heating part 25. roll surface absolute altitudes in figure;
Specifying Fig. 4 (a) is Figure of abstract of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail, is very clearly the structure of this device and the principle people professional concerning this.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.
The utility model is a kind of tubular metal electric heater, its primary structure as shown in Fig. 4 (a), Fig. 4 (b), by many groups tubular metal electric heating element, i.e. compositions such as electrothermal tube and framework, support, stopper.Every electrothermal tube is a heating zone, is divided into heating part and wiring rod part, as shown in Fig. 5 (a)～Fig. 5 (c).Tubular metal electric heating element is to take metal tube as shell, and heating alloy is heating element, and the wiring rod is drawn at two ends, loads closely knit magnesia powder dielectric in metal tube, with the fixing heating unit of heating element.
Each electrothermal tube heating part of the utility model electric heater is turned to section for oval or oblong helix, as shown in Fig. 5 (d)～Fig. 5 (g).The wiring rod part of electrothermal tube is passed from the inside of spiral tube, after a plurality of electrothermal tubes are cascaded, then be fixed on the elongated framework through all spiral tubes inside, this framework is made by heat-resistance stainless steel, the framework top laterally is provided with many supports, is supported on the guide rail in the kiln body.Can be made into 2 ~ 8 heating zone on this electric heater length direction, according to the difference of the size of heating zone quantity and power, the value range of the width L of this use new type heater is 60 ~ 400mm, and pitch S value range is 20 ~ 100mm.
Claims (3)
1. a lear is added hot-zone tubular metal electric heater, comprise many group electrothermal tubes, framework, support and stopper, it is characterized in that every electrothermal tube is a heating zone, be divided into heating part and wiring rod part, the electrothermal tube heating part turns to section for oval or oblong helix, the wiring rod part of electrothermal tube is passed from the inside of spiral tube, after a plurality of electrothermal tubes are cascaded, be fixed on the elongated framework through all spiral tubes inside, the framework top laterally is provided with on the guide rail of many stent support in the kiln body again.
2. a kind of lear as claimed in claim 1 is added hot-zone tubular metal electric heater, it is characterized in that described framework made by heat-resistance stainless steel.
3. a kind of lear as claimed in claim 1 is added hot-zone tubular metal electric heater, it is characterized in that on described electric heater length direction making 2 ~ 8 heating zone, and the width L of electric heater is 60 ~ 400mm, and pitch S is 20 ~ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568058 CN202953934U (en) | 2012-10-31 | 2012-10-31 | Metal tubular electric heater provided with a plurality of heating areas in glass annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568058 CN202953934U (en) | 2012-10-31 | 2012-10-31 | Metal tubular electric heater provided with a plurality of heating areas in glass annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202953934U true CN202953934U (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220568058 Expired - Lifetime CN202953934U (en) | 2012-10-31 | 2012-10-31 | Metal tubular electric heater provided with a plurality of heating areas in glass annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202953934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110062483A (en) * | 2019-05-14 | 2019-07-26 | 四川旭虹光电科技有限公司 | Electric heater unit and its application on a kind of floatation glass production line |
-
2012
- 2012-10-31 CN CN 201220568058 patent/CN202953934U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110062483A (en) * | 2019-05-14 | 2019-07-26 | 四川旭虹光电科技有限公司 | Electric heater unit and its application on a kind of floatation glass production line |
| CN110062483B (en) * | 2019-05-14 | 2022-03-15 | 四川虹科创新科技有限公司 | Electric heating device on float glass production line and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |
|
| CX01 | Expiry of patent term |