CN205690433U - A kind of novel power plant coal-burning boiler air preheater radially Air leakage control equipment - Google Patents
A kind of novel power plant coal-burning boiler air preheater radially Air leakage control equipment Download PDFInfo
- Publication number
- CN205690433U CN205690433U CN201620606958.XU CN201620606958U CN205690433U CN 205690433 U CN205690433 U CN 205690433U CN 201620606958 U CN201620606958 U CN 201620606958U CN 205690433 U CN205690433 U CN 205690433U
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- China
- Prior art keywords
- air preheater
- plate
- plateau
- seal
- sealing plate
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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
Abstract
A kind of novel power plant coal-burning boiler air preheater radially Air leakage control equipment, relates to boiler plant field；It is arranged on the upper and lower two ends of air preheater, it is characterised in that it include compartment sealing plate, plateau seal plate, adjustable double diaphragm seal, hide ash baffle plate, compress guiding mechanism and Sectorial sealplate；Described Sectorial sealplate is connected with adjustable double diaphragm seal；Described adjustable double diaphragm seal lower end is fixing with plateau seal plate upper end to be connected；It is provided with compartment sealing plate below described plateau seal plate；At described plateau seal plate and compartment sealing plate cooperation, outer wall both sides are provided with screening ash baffle plate；It is provided with compression guiding mechanism outside described screening ash baffle plate；It provides the benefit that: it has and makes up air preheater deformation, reduces air preheater and runs the effect of operational efficiency of leaking out, improve.
Description
Technical field
This utility model relates to boiler plant field, is specifically related to a kind of novel power plant coal-burning boiler air preheater radially
Air leakage control equipment.
Background technology
Power plant coal-burning boiler uses rotary regenerative air preheater as afterbody heat transmission equipment mostly, and it can effectively reduce
The effects such as exhaust gas temperature, raising boiler combustion stability, enhancing heat transfer, thus it is effectively improved boiler operating efficiency, reduce fire coal
Consume.But during in order to ensure that air preheater runs can flexible rotating, air preheater rotor surrounding must have certain gap, simultaneously
Owing to there is bigger pressure reduction between air and flue gas, air will be flow in flue gas by the gap of surrounding, therefore returns
Rotatable air preheater arises that when running and inevitably leaks out, but if air leak rate of air curtain is too high when air preheater runs, Jiu Huiyan
Ghost image rings operational efficiency and the service life of air preheater, it is therefore necessary to control air preheater air leakage at reduced levels.
When running due to air preheater, the upper and lower two ends of air preheater rotor there will be the biggest temperature difference, causes whole air preheater
There is center upwards in rotor, periphery downward deformation, make air preheater radial seal gap substantially become big, cause air preheater air leakage
Dramatically increase, and radially leak out account for whole leak out about 80%, therefore control and reduce air preheater radially to leak out, just become understanding
The certainly key of whole air preheater air leakage.
Utility model content
The purpose of this utility model is the defect for prior art and deficiency, it is provided that a kind of novel power plant is coal-fired
Boiler air preheater radially Air leakage control equipment, it has and makes up air preheater deformation, reduces air preheater and runs and leak out, improve operation and imitate
The effect of rate.
In order to solve the problem existing for background technology, this utility model is by the following technical solutions: a kind of novel
Power plant coal-burning boiler air preheater radially Air leakage control equipment, it is arranged on the upper and lower two ends of air preheater, it include compartment sealing plate,
Plateau seal plate, adjustable double diaphragm seal, screening ash baffle plate, compression guiding mechanism and Sectorial sealplate；Described Sectorial sealplate with
Adjustable double diaphragm seal connects；Described adjustable double diaphragm seal lower end is fixing with plateau seal plate upper end to be connected；Described stable state is close
Compartment sealing plate it is provided with below shrouding；At described plateau seal plate and compartment sealing plate cooperation, outer wall both sides are provided with screening ash
Baffle plate；It is provided with compression guiding mechanism outside described screening ash baffle plate.
Preferably, described plateau seal plate and compartment sealing plate are by compressing guiding mechanism slidable connection.
During this utility model operation, the plateau seal plate of air preheater radially Air leakage control equipment and compartment sealing plate are by pressing
The compression guide effect of tight guiding mechanism, remain can mutual the closely cooperating, when air preheater is at running of easy slide
When middle air preheater rotor deforms, plateau seal plate, owing to not fixing with air preheater rotor, will not be affected by bending
Deformation, makes the gap of adjustable double diaphragm seal and the Sectorial sealplate being installed on it to increase, thus ensures air preheater air leakage rate
Will not increase.
This utility model beneficial effect: it have make up air preheater deformation, reduce air preheater run leak out, improves operation imitate
The effect of rate.
Accompanying drawing explanation
Accompanying drawing described herein is used to offer and is further appreciated by of the present utility model, constitutes of the application
Point, but it is not intended that improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is this utility model structural representation；
Fig. 2 is to compress guiding mechanism scheme of installation；
Fig. 3 is to hide ash baffle plate scheme of installation；
Description of reference numerals: 1-Sectorial sealplate；2-adjustable double diaphragm seal；3-plateau seal plate；4-compresses guiding mechanism；
5-hides ash baffle plate；6-compartment sealing plate.
Detailed description of the invention
Describe this utility model in detail below in conjunction with accompanying drawing and specific embodiment, illustrative examples therein with
And explanation is only used for explaining this utility model, but it is not intended as restriction of the present utility model.
As it is shown on figure 3, this detailed description of the invention is by the following technical solutions: a kind of novel power plant coal-burning boiler is empty pre-
Device radially Air leakage control equipment, it is arranged on the upper and lower two ends of air preheater, and it includes compartment sealing plate 6, plateau seal plate 3, adjustable
Double density mounting 2, screening ash baffle plate 5, compression guiding mechanism 4 and Sectorial sealplate 1；Described Sectorial sealplate 1 seals with adjustable double
Sheet 2 connects；Described adjustable double diaphragm seal 2 lower end is fixing with plateau seal plate 3 upper end to be connected；Described plateau seal plate 3 times
Side is provided with compartment sealing plate 6；Described plateau seal plate 3 coordinates outer wall both sides, place to be provided with screening ash gear with compartment sealing plate 6
Plate 5；Compression guiding mechanism 4 it is provided with outside described screening ash baffle plate 5.
Preferably, described plateau seal plate 3 and compartment sealing plate 6 are by compressing guiding mechanism 4 slidable connection.
Originally being embodied as operation principle: when air preheater is properly functioning, high-temperature flue gas flows to from air preheater hot junction from top to down
Cold end, there is inhomogeneities in air preheater temperature of rotor, and top hot-side temperature is high, and bottom cold junction temperature is low, former due to thermal expansion
Because hot junction heat distortion amount is big, cold end heat distortion amount is little, simultaneously because being heated of air preheater central shaft upwards expands, and whole air preheater
Rotor arise that center to the downward deformation of upper periphery, and compartment sealing plate is fixed, just due to separating storehouse with air preheater rotor
The deformation of form as air preheater rotor can occur, now can produce mutual cunning between plateau seal plate and compartment sealing plate
Dynamic, and the compression guiding mechanism between plateau seal plate and compartment sealing plate ensures that both also will not leak after mutually sliding
Wind, this close fitting seal structure fully covers boiler all load variations situation, it is ensured that air preheater is under any load condition
During operation, jam will not occur between plateau seal plate and compartment sealing plate, the situation such as come off and leak out, therefore by leaking out control
System processed can ensure that air preheater air leakage rate controls in prescribed limit.
Using after said structure, what this detailed description of the invention produced have the beneficial effect that it has makes up air preheater deformation, subtracts
Few air preheater runs the effect of operational efficiency of leaking out, improve.
The above, is only in order to the technical solution of the utility model to be described and unrestricted, those of ordinary skill in the art couple
Other amendment or equivalent that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, all should contain in the middle of right of the present utility model.
Claims (2)
1. a novel power plant coal-burning boiler air preheater radially Air leakage control equipment, it is arranged on the upper and lower two ends of air preheater,
It is characterized in that it include compartment sealing plate, plateau seal plate, adjustable double diaphragm seal, hide ash baffle plate, compress guiding mechanism and fan
Shape sealing plate；Described Sectorial sealplate is connected with adjustable double diaphragm seal；Described adjustable double diaphragm seal lower end and plateau seal
Plate upper end is fixing to be connected；It is provided with compartment sealing plate below described plateau seal plate；Described plateau seal plate is close with compartment
At shrouding cooperation, outer wall both sides are provided with screening ash baffle plate；It is provided with compression guiding mechanism outside described screening ash baffle plate.
A kind of novel power plant coal-burning boiler air preheater radially Air leakage control equipment the most according to claim 1, it is special
Levy and be that described plateau seal plate and compartment sealing plate are by compressing guiding mechanism slidable connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620606958.XU CN205690433U (en) | 2016-06-21 | 2016-06-21 | A kind of novel power plant coal-burning boiler air preheater radially Air leakage control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620606958.XU CN205690433U (en) | 2016-06-21 | 2016-06-21 | A kind of novel power plant coal-burning boiler air preheater radially Air leakage control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205690433U true CN205690433U (en) | 2016-11-16 |
Family
ID=57415004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620606958.XU Active CN205690433U (en) | 2016-06-21 | 2016-06-21 | A kind of novel power plant coal-burning boiler air preheater radially Air leakage control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205690433U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087905A (en) * | 2017-12-19 | 2018-05-29 | 航天科工哈尔滨风华有限公司电站设备分公司 | Boiler air preheater umbrella rib type apex combustion seal |
| CN112610978A (en) * | 2020-12-22 | 2021-04-06 | 南京市利澜电力节能科技有限公司 | Novel supporting structure of air preheater gasket |
-
2016
- 2016-06-21 CN CN201620606958.XU patent/CN205690433U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087905A (en) * | 2017-12-19 | 2018-05-29 | 航天科工哈尔滨风华有限公司电站设备分公司 | Boiler air preheater umbrella rib type apex combustion seal |
| CN108087905B (en) * | 2017-12-19 | 2019-07-05 | 航天科工哈尔滨风华有限公司电站设备分公司 | Boiler air preheater umbrella rib type apex combustion seal |
| CN112610978A (en) * | 2020-12-22 | 2021-04-06 | 南京市利澜电力节能科技有限公司 | Novel supporting structure of air preheater gasket |
| CN112610978B (en) * | 2020-12-22 | 2023-03-24 | 南京市利澜电力节能科技有限公司 | Novel supporting structure of air preheater gasket |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |