CN201892221U - Energy-saving flue gas exhaust device - Google Patents
Energy-saving flue gas exhaust device Download PDFInfo
- Publication number
- CN201892221U CN201892221U CN2010206480334U CN201020648033U CN201892221U CN 201892221 U CN201892221 U CN 201892221U CN 2010206480334 U CN2010206480334 U CN 2010206480334U CN 201020648033 U CN201020648033 U CN 201020648033U CN 201892221 U CN201892221 U CN 201892221U
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- China
- Prior art keywords
- chimney
- heat exchanger
- energy
- exchanger tube
- flue gas
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an energy-saving flue gas exhaust device, which comprises a chimney and a heat exchange pipe extending along the length direction of the chimney in the chimney. The two ends of the heat exchange pipe extend to the outer side of the sidewall of the chimney, and the heat exchange pipe adopts a spiral shape. Therefore, the space of the cavity of the chimney can be effectively utilized, the contact area between the heat exchange pipe and flue gas can be increased, and the better heat exchange effect can be achieved. The air inlet end of the heat exchange pipe is arranged to face downwards. An air blower is arranged at the air inlet end or the air outlet end of the heat exchange pipe. The energy-saving flue gas exhaust device has a reasonable structure, the heat of the flue gas to be discharged can be reduced, and the temperature of air pumped into a combustion chamber is high. Moreover, the energy-saving flue gas exhaust device can help to increase the fuel combustion efficiency, and is suitable for various flue gas exhaust environments. In particular, the energy-saving flue gas exhaust device can be matched and used with an industrial furnace to help to increase the heat utilization rate.
Description
Technical field
The utility model relates to a kind of energy-conservation fume extractor.
Background technology
Fume extractor is that people are used for flue gas is guided to outdoor special equipment from indoor, and at present, using maximum fume extractors is exactly chimney.The main effect of chimney is to drain flue gas, and the cigarette that puts a chimney on the stove and make the fire draw improves burning condition.In China, the supporting use of Industrial Stoves of chimney main and heating boiler, power plant and smeltery.According to the difference of make, chimney generally is divided into brick chimney, reinforced concrete chimney and steel stack three classes.No matter be the chimney of which kind of structure, when smoke evacuation, all utilize differential pressure principle work, therefore, the chimney of traditional structure not only can be taken big calorimetric flue gas away from combustion furnace when smoke evacuation, also the cold air of combustion furnace air inlet can be drawn in the burner hearth, smoke discharging effect is better, uses very extensive.But, there is following shortcoming in traditional fume extractor: the high-temperature flue gas of 1, draining can damage the chimney life-span, therefore, not only chimney is had higher heatproof requirement, directly cause chimney build and maintenance cost high, and directly discharge and wasted the heat of fuel combustion; 2, the cold air that is drawn into burner hearth can reduce fuel and fire box temperature, is unfavorable for the raising of fuel economy.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of rational in infrastructure at above-mentioned deficiency, and it is few to drain flue gas heat, suction combustion chamber air themperature height, and help to improve the energy-conservation fume extractor of fuel economy.
For solving the problems of the technologies described above, this energy-conservation fume extractor comprises chimney, and its design feature is: be provided with the heat exchanger tube that extends along the chimney length direction in the chimney, the heat exchanger tube two ends extend to the chimney jambs outside.
The energy-conservation fume extractor of this structure is that to realize draining flue gas heat by the heat exchange smoke discharging structure few, suction combustion chamber air themperature height, and help to improve fuel economy.
The heat exchange smoke discharging structure mainly comprises the heat exchanger tube that is arranged in the chimney, heat exchanger tube extends setting along the chimney length direction, and the heat exchanger tube external diameter is more much smaller than chimney internal diameter, like this, have a bigger space between heat exchanger tube outer wall and inner wall of stack, the flue gas in the chimney is promptly discharged by this space.The heat exchanger tube two ends extend to the chimney outside, and like this, heat exchanger tube promptly is communicated with the chimney air outside.When the high-temperature flue gas in the combustion furnace was discharged by chimney, flue gas just carried out heat exchange with the heat exchanger tube outer wall through the space between inner wall of stack and the heat exchanger tube outer wall time, and at this moment, the air in the heat exchanger tube is heated, and flue-gas temperature reduces greatly.Like this, not only reduce the heatproof requirement of chimney, production of this fume extractor and maintenance cost are reduced greatly, and can improve furnace temperature after infeeding the hot-air in the heat exchanger tube in the combustion furnace, helped full combustion of fuel.
As improvement, described heat exchanger tube is shape in the shape of a spiral.
With the heat exchange tube design curl, can effectively utilize the chimney intracavity space, increase the contact area of heat exchanger tube and flue gas, make the heat exchange better effects if.
As further improvement, the inlet end of described heat exchanger tube is provided with downwards.
The heat exchanger tube inlet end is provided with downwards, when the air in the heat exchanger tube feeds to combustion furnace, the inlet end of heat exchanger tube can suck air in the heat exchanger tube from bottom to top, like this, not only can avoid rainwater to pour into heat exchanger tube, and the flue dust under the dust in air, throat clan is also isolated comes, and has guaranteed the degree of purity of heat exchanger tube to the combustion furnace air feed.
As further improving, the inlet end or the outlet side of heat exchanger tube are equipped with air blast again.
Air blast is installed in inlet end or outlet side at heat exchanger tube, can accelerate the velocity of liquid assets of air in heat exchanger tube, helps to improve the heat exchange efficiency of this energy-conservation fume extractor.
As improvement, the chimney inlet end is communicated with the flue that is communicated with the combustion grate mouth, is wound with heat removing tube on the flue periphery, and the outlet side of heat removing tube and the outlet side of heat exchanger tube connect together.
Between chimney and combustion furnace, flue is set, not only can conveniently carry out operations such as dedusting, air blast, but also the distance that has prolonged chimney and combustion furnace makes high-temperature flue gas can not directly enter chimney, helps to improve the structural stability of chimney flue gas.After on the flue heat removing tube being set, can make air and walling of flue in the heat removing tube carry out heat exchange, both reduced flue-gas temperature, improved air themperature in the heat removing tube again, like this, can supply with simultaneously after hot-air in the heat removing tube and the hot-air parallel connection in the heat exchanger tube when the more hot-air of combustion furnace burns and use, help to improve the efficiency of combustion of fuel in the combustion furnace.
As further improvement, the outlet side of heat exchanger tube is equipped with the main valve of control heat exchanger tube break-make, and the outlet side of heat removing tube is equipped with the auxiliary-valve of control heat removing tube break-make.
In the outlet side of heat exchanger tube main valve is installed, can be controlled the break-make of heat exchanger tube, like this, whether both can control, also can close heat exchanger tube and keep in repair to combustion furnace heat supply air, very convenient.As a same reason, auxiliary-valve can be controlled the break-make of heat removing tube, cooperates with main valve to control heat exchanger tube and the heat removing tube various combination to combustion furnace heat supply air, and is very easy to use.
As further improvement, the inlet end of heat removing tube is provided with downwards.
The inlet end of heat removing tube is provided with downwards, can makes heat removing tube when extracting air, air is to enter heat removing tube from bottom to top, and dust or foreign material in can avoiding like this controlling enter heat removing tube and combustion chamber, have guaranteed the degree of purity of hot-air.
As further improving again, be installed with the support that is connected with the heat exchanger tube outer wall on the chimney.
Between chimney and heat exchanger tube, support is set, can plays the effect of fixed support heat exchanger tube, help this energy-conservation fume extractor stable operation.
In sum, adopt the energy-conservation fume extractor of this structure, rational in infrastructure, it is few to drain flue gas heat, suction combustion chamber air themperature height, and help to improve fuel economy, be adapted at various smoke evacuation occasions and use, especially be fit to be used, help to improve heat utilization ratio with Industrial Stoves.
Description of drawings
In conjunction with the accompanying drawings the utility model is described in further details:
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 is chimney, and 2 is heat exchanger tube, and 3 is air blast, and 4 is flue, and 5 is combustion furnace, and 6 is heat removing tube, and 7 is main valve, and 8 is auxiliary-valve, and 9 is support.
The specific embodiment
As shown in Figure 1, this energy-conservation fume extractor comprises chimney 1, and chimney 1 is big top and small bottom taper pipe, and chimney 1 vertically is provided with.Be provided with the heat exchanger tube 2 that extends along the chimney length direction in the chimney 1, the rank street face of heat exchanger tube 2 is an annular, heat exchanger tube 2 shape in the shape of a spiral in chimney 1 can increase the contact area of flue gas in heat exchanger tube 2 outer walls and the chimney 1 like this, helps to improve both heat exchange effects.The support 9 of fixedlying connected with heat exchanger tube 2 is installed on chimney 1 inwall, can plays the fixedly effect of heat exchanger tube 2 like this, use more reliable.In the present embodiment, the upper end of heat exchanger tube 2 is an inlet end, and the lower end of heat exchanger tube 2 is the outlet side.The inlet end of heat exchanger tube 2 is turned to chimney 1 sidewall outside from chimney 1 exhaust opening, and Open Side Down is provided with, like this, when extraneous air enters heat exchanger tube 2, to enter heat exchanger tube 2 oral areas from bottom to top, can prevent that not only sleet from pouring in the heat exchanger tube 2, also can effectively avoid airborne flue dust, floating thing etc. to enter heat exchanger tube 2, guarantee the pure degree of heat exchange air.The outlet side of heat exchanger tube 2 extends to chimney 1 outside from chimney 1 bottom, and the outlet side of heat exchanger tube 2 is equipped with air blast 3, and the outlet side of air blast 3 is communicated with the inlet end of combustion furnace 5 burner hearth bottoms.When air blast 3 when electric, just can with in the chimney air outside suction heat exchanger tube 2 with chimney 1 in flue gas carry out heat exchange, and the hot-air after the heat exchange infeeded in the combustion furnace 5, like this, not only improved the air themperature when participating in combustion furnace 5 fuel combustion, make that fuel combustion is more abundant, fire box temperature is higher, and the flue-gas temperature of discharging from chimney 1 is lower, has improved the utilization rate of fuel greatly.
Claims (8)
1. an energy-conservation fume extractor comprises chimney (1), it is characterized in that: be provided with the heat exchanger tube (2) that extends along chimney (1) length direction in the chimney (1), heat exchanger tube (2) two ends extend to chimney (1) the sidewall outside.
2. energy-conservation fume extractor as claimed in claim 1 is characterized in that: described heat exchanger tube (2) is shape in the shape of a spiral.
3. energy-conservation fume extractor as claimed in claim 1 or 2 is characterized in that: the inlet end of described heat exchanger tube (2) is provided with downwards.
4. energy-conservation fume extractor as claimed in claim 3 is characterized in that: the inlet end of heat exchanger tube (2) or outlet side are equipped with air blast (3).
5. energy-conservation fume extractor as claimed in claim 4, it is characterized in that: chimney (1) inlet end is communicated with the flue (4) that is communicated with combustion furnace (5) exhaust opening, be wound with heat removing tube (6) on flue (4) periphery, the outlet side of the outlet side of heat removing tube (6) and heat exchanger tube (2) connects together.
6. energy-conservation fume extractor as claimed in claim 5 is characterized in that: the outlet side of heat exchanger tube (2) is equipped with the main valve (7) of control heat exchanger tube (2) break-make, and the outlet side of heat removing tube (6) is equipped with the auxiliary-valve (8) of control heat removing tube (6) break-make.
7. energy-conservation fume extractor as claimed in claim 6 is characterized in that: the inlet end of heat removing tube (6) is provided with downwards.
8. energy-conservation fume extractor as claimed in claim 7 is characterized in that: be installed with the support (9) that is connected with heat exchanger tube (2) outer wall on the chimney (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206480334U CN201892221U (en) | 2010-12-08 | 2010-12-08 | Energy-saving flue gas exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206480334U CN201892221U (en) | 2010-12-08 | 2010-12-08 | Energy-saving flue gas exhaust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201892221U true CN201892221U (en) | 2011-07-06 |
Family
ID=44221694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206480334U Expired - Fee Related CN201892221U (en) | 2010-12-08 | 2010-12-08 | Energy-saving flue gas exhaust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201892221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889958A (en) * | 2012-09-17 | 2016-08-24 | 邹玉华 | Combustion furnace with energy-saving flue suitable for recycling heat energy |
-
2010
- 2010-12-08 CN CN2010206480334U patent/CN201892221U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889958A (en) * | 2012-09-17 | 2016-08-24 | 邹玉华 | Combustion furnace with energy-saving flue suitable for recycling heat energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20131208 |