CN208907634U - Air preheater wind side cold end damps decompressor - Google Patents
Air preheater wind side cold end damps decompressor Download PDFInfo
- Publication number
- CN208907634U CN208907634U CN201821638143.5U CN201821638143U CN208907634U CN 208907634 U CN208907634 U CN 208907634U CN 201821638143 U CN201821638143 U CN 201821638143U CN 208907634 U CN208907634 U CN 208907634U
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- Prior art keywords
- deflector
- air
- negative pressure
- fan
- fanning strip
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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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Abstract
A kind of air preheater wind side cold end damps decompressor.The transmission deflector one is fixed on the shoulder of rotor, send the outside that deflector two is fixed on fan-shaped storehouse lower part, receive the lower part that deflector is fixed on fan-shaped storehouse, region sub-high pressure is formd between the transmission deflector one and fanning strip of high pressure cold air wind side, and region time negative pressure is formd between the transmission deflector one and fanning strip of negative pressure hot fume wind side.In the utility model, preheater diaphragm seal and fanning strip form sealing cooperation, and there are certain static and dynamic sealing gaps.Due to being additionally arranged guiding device in air side, deflector one is sent, deflector two is sent and receives deflector, enhance the pressure-air velocity of medium on the outside of deflector, and region sub-high pressure is then formd on the inside of deflector, region time negative pressure similarly is formd in negative pressure hot fume side, so that the cigarette leeway of diaphragm seal two sides is greatly reduced compared with traditional structure, the radial direction for being effectively controlled preheater is directly leaked out, air leak rate of air curtain is reduced, to improve economic benefit.
Description
Technical field
The utility model relates to a kind of air preheater wind side cold ends to damp decompressor, belong to air preheater decompression dress
Set technical field.
Background technique
Existing station boiler preheater work mainly drives fan-shaped storehouse 3 to rotate by rotor 1, and air-introduced machine is under fan-shaped storehouse 3
End attracts hot fume, and hot fume is made from top to bottom to pass through fan-shaped storehouse 3 in the form of negative pressure, and heats the member of the heat transfer in fan-shaped storehouse 3
Part, fan-shaped storehouse 3 continue to rotate, and hot heat transfer element rotates to air side, and cold air is inputted in the form of high pressure by air blower, by
Under it is supreme by fan-shaped storehouse 3, hot-air is heated to be by the heat transfer element in fan-shaped storehouse 3, for effectively control station boiler preheater
Internal high pressure air leaks out to negative pressure flue gas, mainly diaphragm seal 4 is taken to control fan-shaped storehouse 3 and fanning strip inside air preheater
The method in gap between 2, purpose are exactly to reduce dielectric leakage channel, inabundant to causing the cigarette leeway of dielectric leakage to carry out
It controls (as shown in Figure 1).In traditional architectures, preheater sector storehouse 3 and fanning strip 2 form sealing cooperation, and there are certain to move
Static seal gap, and there is between the high pressure cold air wind side of positive pressure and the hot fume wind side of negative pressure for the two sides of diaphragm seal 4
Pressure difference generates biggish dielectric leakage.
Utility model content
Purpose of the utility model is to solve the above-mentioned problems of the prior art, and then provide a kind of air preheat
Device wind side cold end damps decompressor.
The purpose of this utility model is achieved through the following technical solutions:
A kind of air preheater wind side cold end damps decompressor, comprising: rotor, fanning strip, fan-shaped storehouse, diaphragm seal, hair
Deflector one is sent, deflector two is sent and receives deflector, the transmission deflector one is fixed on the shoulder of rotor, and transmission is led
Flowing plate two is fixed on the outside of fan-shaped storehouse lower part, receives the lower part that deflector is fixed on fan-shaped storehouse, the hair of high pressure cold air wind side
Send and form region sub-high pressure between deflector one and fanning strip, the transmission deflector one of negative pressure hot fume wind side and fanning strip it
Between form region time negative pressure.
In the utility model, preheater diaphragm seal and fanning strip form sealing cooperation, and there are certain static and dynamic sealing gaps.
Due to being additionally arranged guiding device in air side, that is, deflector one is sent, deflector two is sent and receives deflector, enhances water conservancy diversion
Pressure-air velocity of medium on the outside of plate, and region sub-high pressure is then formd on the inside of deflector, similarly in negative pressure hot fume side
Region time negative pressure is formd to be effectively controlled so that the cigarette leeway of diaphragm seal two sides is greatly reduced compared with traditional structure
The radial direction of preheater is directly leaked out, and air leak rate of air curtain is reduced, to improve economic benefit.
The economical operation ability of power station unit can effectively be promoted by reducing air leak rate of air curtain, and the air preheater of the utility model
Wind side cold end, which damps decompressor, will become the effective measures of control air leak rate of air preheater.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing air preheater.
Fig. 2 is that the utility model air preheater wind side cold end damps decompressor.
Fig. 3 is the structural schematic diagram of the transmission deflector one of high pressure cold air wind side.
Fig. 4 is the structural schematic diagram of the transmission deflector one of negative pressure hot fume wind side.
Fig. 5 is the main view for receiving deflector.
Fig. 6 is the side view for receiving deflector.
The A direction view (main view for sending deflector one) that Fig. 7 is Fig. 3.
Fig. 8 is the main view for sending deflector two.
Fig. 9 is the side view for sending deflector two.
Appended drawing reference in figure, 1 is rotor, and 2 be fanning strip, and 3 be fan-shaped storehouse, and 4 be diaphragm seal, and 5 is send deflector one,
6 is send deflector two, and 7 is receive deflector, and 8 be region sub-high pressure, and 9 be region time negative pressure, and 10 be runner (air or cigarette
Flow channel).
Specific embodiment
Be described in further detail below in conjunction with attached drawing to the utility model: the present embodiment is with the utility model skill
Implemented under premised on art scheme, give detailed embodiment, but the protection scope of the utility model be not limited to it is following
Embodiment.
As shown in Fig. 2~Fig. 9, a kind of air preheater wind side cold end involved in the present embodiment damps decompressor, packet
Include: rotor 1, fan-shaped storehouse 3, diaphragm seal 4, sends deflector 1, sends deflector 26 and receives deflector 7, institute fanning strip 2
It states transmission deflector 1 to be fixed on the shoulder of rotor 1, sends the outside that deflector 26 is fixed on fan-shaped 3 lower part of storehouse, receive
Deflector 7 is fixed on the lower part in fan-shaped storehouse 3, forms between the transmission deflector 1 and fanning strip 2 of high pressure cold air wind side
Region sub-high pressure 8 forms region time negative pressure 9 between the transmission deflector 1 and fanning strip 2 of negative pressure hot fume wind side.
Transmission deflector 1 described in every group is three, forms runner 10 between every two adjacent transmission deflector 1.
The vertical section for receiving deflector 7 is waveform.
Air preheater is thermal power plant main auxiliary equipment, it is the waste heat using boiler tail flue gas come heating kettle
The heat-exchange apparatus of air needed for furnace burns.And air-heater leakage is the main Runing e conomy indicator of air preheater.Preheating
Device, which leaks out, to leak out including carrying and directly leaks out.Wherein, it directly leaks out because seal clearance and gap media of both sides pressure difference are formed,
Account for the overwhelming majority that preheater always leaks out.And in directly leaking out, radially leaking out accounts for 80% or so, and account for that preheater leaks out is exhausted big
Ratio.
This embodiment reduces the pressure differences of air preheater air side and fume side, and then reduce air preheater air
Side leakage enters the inleakage of fume side；It is the novel reduction air-heater leakage of one kind, promotes preheater economical operation index
Device.
The preferable specific embodiment of the above, only the utility model, these specific embodiments are all based on this
Different implementations under utility model general idea, and the protection scope of the utility model is not limited thereto, it is any ripe
Know those skilled in the art within the technical scope disclosed by the utility model, any changes or substitutions that can be easily thought of, all
It should cover and be within the protection scope of the utility model.Therefore, the protection scope of the utility model should be with claims
Subject to protection scope.
Claims (3)
1. a kind of air preheater wind side cold end damps decompressor, comprising: rotor (1), fanning strip (2), fan-shaped storehouse (3) and close
Mounting (4), which is characterized in that it further include sending deflector one (5), sending deflector two (6) and receive deflector (7), it is described
It sends deflector one (5) to be fixed on the shoulder of rotor (1), sends deflector two (6) and be fixed on the outer of fan-shaped storehouse (3) lower part
Side receives the lower part that deflector (7) are fixed on fan-shaped storehouse (3), the transmission deflector one (5) and fanning strip of high pressure cold air wind side
(2) it forms between region sub-high pressure (8), is formed between the transmission deflector one (5) and fanning strip (2) of negative pressure hot fume wind side
Region time negative pressure (9).
2. air preheater wind according to claim 1 side cold end damps decompressor, which is characterized in that sent out described in every group
Sending deflector one (5) is three, forms runner (10) between every two adjacent transmission deflector one (5).
3. air preheater wind according to claim 2 side cold end damps decompressor, which is characterized in that the reception is led
The vertical section of flowing plate (7) is waveform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821638143.5U CN208907634U (en) | 2018-10-09 | 2018-10-09 | Air preheater wind side cold end damps decompressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821638143.5U CN208907634U (en) | 2018-10-09 | 2018-10-09 | Air preheater wind side cold end damps decompressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208907634U true CN208907634U (en) | 2019-05-28 |
Family
ID=66614100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821638143.5U Active CN208907634U (en) | 2018-10-09 | 2018-10-09 | Air preheater wind side cold end damps decompressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208907634U (en) |
-
2018
- 2018-10-09 CN CN201821638143.5U patent/CN208907634U/en active Active
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