CN2313194Y - Case-pipe of air heat-exchanging device of heating cover - Google Patents
Case-pipe of air heat-exchanging device of heating cover Download PDFInfo
- Publication number
- CN2313194Y CN2313194Y CN 97229736 CN97229736U CN2313194Y CN 2313194 Y CN2313194 Y CN 2313194Y CN 97229736 CN97229736 CN 97229736 CN 97229736 U CN97229736 U CN 97229736U CN 2313194 Y CN2313194 Y CN 2313194Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- heat exchanger
- air
- sleeve pipe
- air heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a sleeve for an air heat exchanger of a heating cover. The utility model, which is installed on a heat-insulating layer of the heating cover of a cover-type annealing furnace and is internally sheathed on the outside of an air preheater, is characterized in that the sleeve of the air heat exchanger of the heating cover is quadrate, and the thickness of a wall is 4-6 mm. Due to the adoption of the quadrate sleeve of the air heat exchanger of the heating cover, the heat-exchanging area of the sleeve is increased, and the sleeve is not easily deformed so that the anti-burning ability of the sleeve is enhanced. The quadrate sleeve can be conveniently processed, installed and maintained, service life is extended, and human labor and materials are saved.
Description
The utility model belongs to bell type annealing furnace heating mantles air heat exchanger sleeve pipe heating mantles air heat exchanger field, specifically is a kind of sleeve pipe of heat exchanger.
Generally be equipped with the air heat exchanger system in the heating mantles of bell type annealing furnace, utilize the useless flue gas after the burning through air heat exchanger air to be given heat, the air that gives after the heat is delivered to behind the burner to mix with coal gas and is burnt along giving hot rib combustion air hose, to heat coil of strip.The air themperature of giving after the heat improves the efficiency of combustion fuel savings at 250～300 ℃, and makes the useless flue-gas temperature of discharging descend the thermal pollution that alleviates environment.
Useless theoretically flue-gas temperature is high more, and to be given the high more energy-saving effect of air themperature of heat good more, but be subjected to the restriction of multiple factor in the middle of the reality, general conventional flue gas pipe etc. all adopts round tube, therefore the sleeve pipe of heating mantles heat exchanger also adopts circular heat-resistance stainless steel pipe, wall thickness is 1mm, and when adopting the sleeve pipe of refractory material, flue-gas temperature can be between 500～700 ℃, can not be too high, waste gas flue gas exhaust gas temperature can only be than low 20～50 ℃ of temperature in the burner hearth.In fact because the gas component instability that combustion gas factory supplies with, calorific value height sometimes, combustible component (Co.H in the combustion gas
3.CH
4) content is many, still has combustible component insufficient the making in the useless flue gas of heating mantles internal combustion.Useless flue gas is met air and is burnt once more in heat exchanger, at this moment temperature causes the sleeve pipe of heat exchanger to be made the combustion-supporting supply not smooth by scaling loss (because of casing wall thickness is 1mm) because sleeve pipe damages considerably beyond EGT, the aggravation sleeve pipe damages, thereby cause the heating mantles internal combustion insufficient, more aggravate the vicious circle of burning once more in heat exchanger, have a strong impact on and add thermal effect, change heat exchange jackets and not only waste substantial contribution, dismounting complex effects annealing furnace is produced.
The utility model is exactly the sleeve pipe that designs a kind of square heating mantles heat exchanger in order to solve heating mantles air heat exchanger sleeve pipe scaling loss.
The technical solution of the utility model is such.This heating mantles air heat exchanger sleeve pipe, be installed in the heat-insulation layer of bell type annealing furnace heating mantles, be enclosed within air and give the outside of hot device, the circle that the sleeve pipe mountain plateau of heating mantles air heat exchanger comes makes into square, increased the sectional area of sleeve pipe, the wall thickness of sleeve pipe is 4～6Mmm, makes it strengthen the anti-scorching ability of sleeve pipe.
Because the utility model has adopted square heating mantles air heat exchanger sleeve pipe, increased the sectional area of sleeve pipe, promptly increased heat exchange area, the wall thickness of sleeve pipe is 4～6Mmm, not yielding, make its anti-scorching ability that strengthens sleeve pipe, square casing is convenient in processing, installation, maintenance simultaneously, prolong the service life of sleeve pipe, save the man power and material.
Below in conjunction with accompanying drawing the utility model is done and to be specified
Installation diagram when accompanying drawing 1 is the utility model use
Accompanying drawing 2 is schematic cross-sections of the present utility model
As shown in Figure 1, the utility model heating mantles air heat exchanger sleeve pipe, be installed in the heat-insulation layer 2 of bell type annealing furnace heating mantles 1, be enclosed within air and give the outside of hot device 6, air gives hot device 6 and utilizes the useless flue gas air after burning to give heat, the air that gives after the heat is delivered to burner 4 backs and is mixed with coal gas and burn along giving hot rib combustion air hose 7, to heat coil of strip.
As shown in Figure 2, the sleeve pipe 8 of heating mantles air heat exchanger 6 makes into square by original circle, increased the sectional area of sleeve pipe, (about 21.5%) is that heat exchange area increases by 21.5%, square casing is easily when processing, installation, maintenance, the wall thickness of sleeve pipe is 4～6Mmm, and is not yielding during installation, makes it strengthen the anti-scorching ability of sleeve pipe.Also convenient when building heating furnace heat-insulation layer 2 heat-insulating materials simultaneously by laying bricks or stones, (heat-insulating material need not be processed into semicircle and then build by laying bricks or stones).
Claims (1)
1, a kind of heating mantles air heat exchanger sleeve pipe is installed in the heat-insulation layer of bell type annealing furnace heating mantles and is enclosed within the outside that air gives hot device, and the sleeve pipe that it is characterized in that the heating mantles air heat exchanger is square, and wall thickness is 4～6Mmm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97229736 CN2313194Y (en) | 1997-10-20 | 1997-10-20 | Case-pipe of air heat-exchanging device of heating cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97229736 CN2313194Y (en) | 1997-10-20 | 1997-10-20 | Case-pipe of air heat-exchanging device of heating cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2313194Y true CN2313194Y (en) | 1999-04-07 |
Family
ID=33942443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97229736 Expired - Fee Related CN2313194Y (en) | 1997-10-20 | 1997-10-20 | Case-pipe of air heat-exchanging device of heating cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2313194Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102187173A (en) * | 2008-10-20 | 2011-09-14 | 艾伯纳工业筑炉有限公司 | Heat exchanger for an annealing furnace for exchanging heat between two fluids |
-
1997
- 1997-10-20 CN CN 97229736 patent/CN2313194Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102187173A (en) * | 2008-10-20 | 2011-09-14 | 艾伯纳工业筑炉有限公司 | Heat exchanger for an annealing furnace for exchanging heat between two fluids |
| CN102187173B (en) * | 2008-10-20 | 2013-04-03 | 艾伯纳工业筑炉有限公司 | Heat exchanger for an annealing furnace for exchanging heat between two fluids |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |