CN2226733Y - High-efficiency air heater - Google Patents
High-efficiency air heater Download PDFInfo
- Publication number
- CN2226733Y CN2226733Y CN 95213253 CN95213253U CN2226733Y CN 2226733 Y CN2226733 Y CN 2226733Y CN 95213253 CN95213253 CN 95213253 CN 95213253 U CN95213253 U CN 95213253U CN 2226733 Y CN2226733 Y CN 2226733Y
- Authority
- CN
- China
- Prior art keywords
- air
- cavity
- flue gas
- heat
- temperature flue
- 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
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003546 flue gas Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
A high-efficiency air heater has two large cavity systems, namely a high-temperature flue gas cavity system. And the other is an air cavity system which is isolated from each other. The heat pipe type air heat exchanger consists of 4-180 heat pipes, one half of the heat pipes which are arranged side by side extend into the high-temperature flue gas cavity, and the other half of the heat pipes extend into the air cavity. The high-temperature flue gas is wrapped around and scours the half sections of the parallel heat pipes to be heated quickly, and the air is heated due to the heat radiation of the heat pipes extending to the air cavity. The utility model has the advantages that: high heat efficiency, simple structure, safety, high temperature of heated air and no pollution to supplied air.
Description
The utility model relates to the device to air heat.
In industries such as weaving, printing and dyeing, metallurgy, heating, food and grain processing, often need heating, oven dry, typing.Useful steam boiler produces steam in the prior art, and steam is transported to vapour by pipeline---gas-heat exchanger, and make air become hot-air, by air blast hot-air is sent into heating, oven dry, modular system again; Also have by thermo oil boiler in the prior art to produce high-temperature oil liquid, high temperature oil enters oil-gas-heat exchanger by pipeline, makes air become hot-air, by air blast hot-air is sent into heating, oven dry, modular system again.Said apparatus is by fuel combustion, and---water or oil---heating with medium is earlier passed to heat exchanger to heat by medium again, makes air heat, and its weak point is that the thermal efficiency is low; The hot air temperature that exchanges is not high, is difficult to above 300 ℃; Complex structure, bulky; And all belong to pressure vessel, safety coefficient is low.Also have the high-temperature flue gas that is produced by burner combustion in the prior art, directly send into firing equipment, though the device thermal efficiency of this structure has improved, the hot-air of supplying with contains a large amount of flue dust and pernicious gas, causes environmental pollution.
The purpose of this utility model is to provide a kind of high-efficient air heater in order to overcome above-mentioned weak point, and thermal efficiency height reaches 91%; Compact conformation is simple; No compression zone body, safety coefficient is big; Heated air themperature height can reach 450 ℃; The hot-air of being supplied with does not pollute.
Description of the present utility model is as follows: high-efficient air heater is made up of burner, heating furnace, heat pipe-type air heat exchanger, air-introduced machine, air blast, return air duct, chimney etc.High-efficient air heater divides two big cavity systems, and is isolated mutually, and the one, high-temperature flue gas cavity system, the one, air cavity system.The heat pipe-type air heat exchanger is made up of 4-180 heat pipes side by side, and heat pipe side by side its half is stretched at the high-temperature flue gas cavity, and second half is stretched at the air cavity.High-temperature flue gas cavity system is made up of burner, heating furnace, high-temperature flue gas chamber, air-introduced machine, return air duct, chimney.The fuel of torch can be combustion gas, also can be fuel oil.The bocca of burner places in the burner hearth of heating furnace.Outside at heating furnace is added with thermal insulation layer.The high-temperature flue gas that produces in the heating furnace, wrap up in around, wash away half section of side by side heat pipe, heat pipe is heated rapidly, thereby whole heat pipe all is heated, because the heat radiation of the heat pipe of second half section in the air cavity makes air heat, realizes the heat pipe-type air heat exchange like this.In high-temperature flue gas cavity back air-introduced machine is housed, is connected at the back and the chimney of air-introduced machine.Can also be connected with return air duct in the air-introduced machine back, the other end of return air duct and the burner hearth of heating furnace are connected.Like this, through the flue gas behind the heat pipe side by side, drawn by air-introduced machine, can be discharged by chimney, also can a part discharge from chimney, a part is back in the heating furnace burner hearth by return air duct.Air cavity system is made up of air cleaner, air blast, air cavity, hot gas outlet duct, the air of nature is earlier through air cleaner, send into the air cavity by air blast, wrap up in around and by being positioned at the heat pipe that is heated of air cavity, make air heat, hot-air is sent from outlet, uses for oven dry, moulding.Air is opposite in the flow direction of high-temperature flue gas cavity at the flow direction and the high-temperature flue gas of air cavity.
Description of drawings:
Figure is the structure cutaway view of high-efficient air heater of the present utility model.1-burner among the figure, 2-heating furnace, 3-thermal insulation layer, 4-hot gas outlet duct, 5-air chamber, 6-side by side heat pipe, 7-air blast, 8-air cleaner, 9-chimney, 10-air-introduced machine, 11-high-temperature flue gas chamber, 12-return air duct.
With 200,000 kilojoules, the high-efficient air heater that is used for the drying typing in dyeing is as embodiment of the present utility model.High-efficient air heater is made up of burner (1), heating furnace (2), high-temperature flue gas chamber (11), air chamber (5), heat pipe (6) side by side, air-introduced machine (10), air blast (7), return air duct (12), chimney (9), high-efficient air heater has two big cavity systems, isolated mutually, the one, high-temperature flue gas cavity system, the one, air cavity system.High-temperature flue gas cavity system is made up of burner (1), heating furnace (2), high-temperature flue gas chamber (11), air-introduced machine (10), return air duct (12), chimney (9), and burner (1) adopts MGF-25 type oil burner.The cavity volume of heating furnace (2) is 0.27m
3The heat pipe-type air heat exchanger is made up of 128 heat pipes (6), and wherein Φ 32 * 3 * 1665 tea heat pipes are 53,75 of Φ 32 * 3 * 1665 water carbon steel heat pipes.Half stretches these heat pipes (6) side by side in high-temperature flue gas chamber (11), and half is stretched in air chamber (5), and is isolated mutually.From the high-temperature flue gas that heating furnace (2) produces, wrap up in around, wash away half section of side by side heat pipe (6), it is heated rapidly because the heat radiation of second half section heat pipe (6) in the air chamber (5) makes air heat, realize heat exchange.Air-introduced machine (10) is equipped with in back, high-temperature flue gas chamber (11).Through the flue gas behind the heat pipe (6) side by side, to draw by air-introduced machine (10), a part is discharged by chimney (9), and a part is back to the burner hearth of heating furnace (2) by return air duct (12).Air cavity system is made up of air cleaner (8), air blast (7), air cavity (5), hot gas outlet duct (4).Air earlier through air cleaner (8), is sent into air chamber (5) by air blast (7), wrap up in around and heat pipe side by side (6) by being heated, make air heat, hot-air is sent from outlet (4), for use.Hot air temperature can reach 400 ℃.
Advantage of the present utility model: thermal efficiency height can reach 91%; Simple in structure; Safety; Heated air themperature height can reach 450 ℃; The air of supplying with is clear Clean, do not pollute.
Claims (6)
1. high-efficient air heater that relates to air heat, it is characterized in that it is made up of burner, heating furnace, heat pipe-type air heat exchanger, air-introduced machine, air blast, chimney, it has two big cavity systems, the one, high-temperature flue gas cavity system, the 2nd, air cavity system, mutually isolated, 4-180 heat pipes side by side its half are stretched at the high-temperature flue gas cavity, and second half is stretched at the air cavity.
2. high-efficient air heater according to claim 1 is characterized in that in high-temperature flue gas cavity back air-introduced machine being housed, and is connected in air-introduced machine back and chimney.
3. high-efficient air heater according to claim 1 and 2 is characterized in that the air-introduced machine back can also be connected with return air duct, and the other end of return air duct and the burner hearth of heating furnace are connected.
4. high-efficient air heater according to claim 1 is characterized in that at the air cavity air cleaner and air blast being housed.
5. high-efficient air heater according to claim 1 is characterized in that air is opposite in the flow direction of high-temperature flue gas cavity at the flow direction and the high-temperature flue gas of air cavity.
6. high-efficient air heater according to claim 1 is characterized in that the outside of heating furnace is added with thermal insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95213253 CN2226733Y (en) | 1995-05-30 | 1995-05-30 | High-efficiency air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95213253 CN2226733Y (en) | 1995-05-30 | 1995-05-30 | High-efficiency air heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2226733Y true CN2226733Y (en) | 1996-05-08 |
Family
ID=33863196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95213253 Expired - Fee Related CN2226733Y (en) | 1995-05-30 | 1995-05-30 | High-efficiency air heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2226733Y (en) |
-
1995
- 1995-05-30 CN CN 95213253 patent/CN2226733Y/en not_active Expired - Fee Related
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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 |