CN203116076U - Air heater with bypass circulation - Google Patents
Air heater with bypass circulation Download PDFInfo
- Publication number
- CN203116076U CN203116076U CN201320136298XU CN201320136298U CN203116076U CN 203116076 U CN203116076 U CN 203116076U CN 201320136298X U CN201320136298X U CN 201320136298XU CN 201320136298 U CN201320136298 U CN 201320136298U CN 203116076 U CN203116076 U CN 203116076U
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- China
- Prior art keywords
- bypass
- air
- air channel
- air duct
- air heater
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- Expired - Fee Related
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- 230000004888 barrier function Effects 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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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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- Air Supply (AREA)
Abstract
The utility model discloses a novel air heater. The novel air heater comprises an air heater inlet air duct, an air heater body, an air heater outlet air duct, bypass air duct inlet sections, bypass air duct baffle doors and bypass air duct outlet sections. The air heater body is arranged on an air duct between the air heater inlet air duct and the air heater outlet air duct. The bypass air duct inlet sections are connected with the air heater inlet air duct. The bypass air duct outlet sections are connected with the air heater outlet air duct. The bypass air duct baffle doors are arranged in bypass air duct pipelines. The bypass air ducts are multiple, and the bypass air duct baffle doors are multiple. The air heater inlet air duct and the bypass air duct inlet sections are connected with a ventilator. The bypass air duct outlet sections and the air heater outlet air duct are connected with an air pre-heater. The bypass air duct pipelines are multiple, and bypass air duct control baffle door are multiple. The purpose of air duct switching can be achieved without the need of disassembling the air heater body and closing or opening an air duct control baffle door, flow resistance is reduced, electricity is saved, and consumption is reduced. The novel air heater is simple and reliable in structure, and applicable to improvement and application in an original system, and can also be applied to energy-saving improvement of other various heat-exchange devices which are in intermittent operation.
Description
Technical field
The utility model relates to heat transmission equipment technical field in the station boiler, relates in particular to a kind of steam air heater of bypass circulation.
Background technology
Steam air heater is the auxiliary heat transmission equipment of the boiler of the conventional configuration in thermal power plant.The effect of steam air heater is to utilize extracted steam from turbine to come the heating boiler air intake, send the air of heating to air preheater, improve import (the being cold junction) air themperature of air preheater, can improve the tube wall temperature of boiler tail air preheater again, prevent cold end corrosion and the stifled ash of air preheater heat transfer element effectively.Prevent air preheater generation cold end corrosion.General winter temperature puts into operation when low, stops transport in other eligible backs of temperature in season.The steam air heater routine is arranged in that pressure fan is exported in the air channel of air preheater entrance in the station boiler supply air system, also can be arranged between atmosphere air inlet and the Fan Inlet air channel.It is a kind of tubing heat exchanger of finned Steam Heating air, and steam air heater at home and abroad is widely used.The steam air heater system is made up of finned tube, header, drain tank, have advantages such as compact conformation, heat exchange area are big, good effect of heat exchange, be used for preventing the sulfur corrosion of air preheater metal surface and the dust stratification that reduces the metal wall, prolong air preheater service life.
A wind, secondary wind that station boiler generally adopts low-pressure steam to draw gas to the entrance of air preheater carry out the preheating heating, steam air heater conventional layout in the air channel generally fixed, and generally adopts the outer fin reinforcing heat exchange unit of array to form according to the heat-exchanging tube bundle of the size steam air heater in air channel.Because move during the general main low temperature in the winter time of steam air heater, running time is short, and after the other times environment temperature raise, steam air heater was stopped transport; But during stopping transport at steam air heater still in the air channel, air washes away a wind, the secondary wind resistance that the steam air heater heat-exchanging tube bundle causes and still exists, and has increased the power consumption of pressure fan.Rotary steam air heater of the prior art in addition, there are the following problems; 1, manufacturing cost height, it and intrinsic steam air heater have relatively increased swivel joint and rotational structure and driving, complex structure, cost improves.2, increased accident risk and running cost and improved, because increased swivel joint and rotating mechanism, maintenance workload strengthens.
Summary of the invention
The utility model provides a kind of steam air heater of bypass circulation in order to solve the prior art above shortcomings; Do not need to dismantle steam air heater, close or open air channel control baffle door, reach the air channel conversion, reduce flow resistance, reduced cost and the workload safeguarding and safeguard; Simple and reliable for structure, wide adaptability is applicable to be arranged on Fan Inlet or the outlet air channel, and the gas heat exchanger occasion of other various intermitten services, has reduced manufacturing expense and operating cost, reaches energy saving purposes.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of steam air heater of bypass circulation, comprise steam air heater entrance air channel, steam air heater, steam air heater outlet air channel, bypass air channel entrance, bypass air channel barrier door, bypass ducting outlet section, steam air heater is located at steam air heater entrance air channel, on the air channel between the steam air heater outlet air channel, bypass air channel entrance connects steam air heater entrance air channel, bypass ducting outlet section connects steam air heater outlet air channel, bypass air channel barrier door is arranged in the pipeline of bypass air channel, steam air heater entrance air channel, bypass air channel entrance is connected with ventilation blower, bypass ducting outlet section, steam air heater outlet air channel is connected with air preheater, and bypass air channel and bypass air channel barrier door are provided with a plurality of.
Bypass duct cross-section and bypass air channel barrier door are rectangle, circle or ellipse.
Bypass air channel control baffle door adopts axle to be folded to the control baffle ventilation door.
Useful result of the present utility model is:
1. do not need to dismantle steam air heater, close or open air channel control baffle door, can reach the air channel conversion, reduce flow resistance, reduced the power consumption of ventilation blower, reduced cost and the workload safeguarding and safeguard;
2. simple and reliable for structure, wide adaptability is applicable to be arranged on Fan Inlet or the outlet air channel, and the gas heat exchanger occasion of other various intermitten services.
3. system lock is good, can reduce external noise.
Description of drawings
Fig. 1 is the structure chart of the utility model embodiment;
Wherein, 1. ventilation blower, 2. steam air heater entrance air channel, 3. steam air heater, 4. steam air heater outlet air channel, 5. air preheater, 6. bypass entrance air channel, 7. bypass air channel barrier door, 8. bypass outlet air channel.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
A kind of steam air heater of bypass circulation, in conjunction with Fig. 1, comprise steam air heater entrance air channel 2, steam air heater 3, steam air heater outlet air channel 4, bypass air channel entrance 6, bypass air channel barrier door 7, bypass ducting outlet section 8, steam air heater 3 is located at steam air heater entrance air channel 2, on the air channel between the steam air heater outlet air channel 4, bypass air channel entrance 6 connects steam air heater entrance air channel 2, bypass ducting outlet section 8 connects steam air heater outlet air channel 4, bypass air channel barrier door 7 is arranged in the pipeline of bypass air channel, steam air heater entrance air channel 2, bypass air channel entrance 6 is connected with ventilation blower 1, bypass ducting outlet section 8, steam air heater outlet air channel 4 is connected with air preheater 5, and bypass air channel and bypass air channel barrier door 7 are provided with a plurality of.
Described bypass duct cross-section and bypass air channel barrier door 7 are rectangle, circle or ellipse.
Bypass air channel barrier door 7 adopts axle to be folded to the control baffle ventilation door.
Do not need to dismantle steam air heater during use, close or open air channel control baffle door, can reach the air channel conversion, reduce flow resistance, reduced the power consumption of ventilation blower, reduced cost and the workload safeguarding and safeguard.Simple and reliable for structure, be adapted at the original system transformation and use.The steam air heater that is arranged in Fan Inlet or outlet air channel all is suitable for.Also can be applied to the gas heat exchanger occasion of other various intermitten services.There are not newly-increased opening air channel, filter etc.System lock reduces noise.
Though above-mentionedly by reference to the accompanying drawings the specific embodiment of utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (3)
1. the steam air heater of bypass circulation, comprise steam air heater entrance air channel, steam air heater, steam air heater outlet air channel, also comprise bypass air channel entrance, bypass air channel barrier door, bypass ducting outlet section, it is characterized in that, described steam air heater is located at steam air heater entrance air channel, on the air channel between the steam air heater outlet air channel, bypass air channel entrance connects steam air heater entrance air channel, bypass ducting outlet section connects steam air heater outlet air channel, bypass air channel barrier door is arranged in the pipeline of bypass air channel, bypass air channel and bypass air channel barrier door are provided with a plurality of, steam air heater entrance air channel, bypass air channel entrance is connected with ventilation blower, bypass ducting outlet section, steam air heater outlet air channel is connected with air preheater, and described bypass air channel pipeline and bypass air channel control baffle door are provided with a plurality of.
2. the steam air heater of bypass circulation as claimed in claim 1 is characterized in that described bypass duct cross-section and bypass air channel barrier door are rectangle, circle or ellipse.
3. the steam air heater of bypass circulation as claimed in claim 1 is characterized in that, described bypass air channel control baffle door adopts axle to be folded to the control baffle ventilation door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320136298XU CN203116076U (en) | 2013-03-22 | 2013-03-22 | Air heater with bypass circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320136298XU CN203116076U (en) | 2013-03-22 | 2013-03-22 | Air heater with bypass circulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203116076U true CN203116076U (en) | 2013-08-07 |
Family
ID=48896414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320136298XU Expired - Fee Related CN203116076U (en) | 2013-03-22 | 2013-03-22 | Air heater with bypass circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203116076U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990063A (en) * | 2015-06-24 | 2015-10-21 | 山东英电节能科技有限公司 | Hot primary air waste heat utilization device coupled with air heater system in use |
| CN110006267A (en) * | 2019-04-02 | 2019-07-12 | 北京百度网讯科技有限公司 | A kind of cooling tower |
| CN114877412A (en) * | 2022-04-06 | 2022-08-09 | 北京航天发射技术研究所 | Shared air duct type high-overpressure three-proofing air conditioner |
-
2013
- 2013-03-22 CN CN201320136298XU patent/CN203116076U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990063A (en) * | 2015-06-24 | 2015-10-21 | 山东英电节能科技有限公司 | Hot primary air waste heat utilization device coupled with air heater system in use |
| CN110006267A (en) * | 2019-04-02 | 2019-07-12 | 北京百度网讯科技有限公司 | A kind of cooling tower |
| CN114877412A (en) * | 2022-04-06 | 2022-08-09 | 北京航天发射技术研究所 | Shared air duct type high-overpressure three-proofing air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20190322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |