CN201885255U - Air preheater - Google Patents
Air preheater Download PDFInfo
- Publication number
- CN201885255U CN201885255U CN2010206434641U CN201020643464U CN201885255U CN 201885255 U CN201885255 U CN 201885255U CN 2010206434641 U CN2010206434641 U CN 2010206434641U CN 201020643464 U CN201020643464 U CN 201020643464U CN 201885255 U CN201885255 U CN 201885255U
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- CN
- China
- Prior art keywords
- air preheater
- dividing plate
- air
- long dividing
- lateral partitions
- 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 - Lifetime
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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
The utility model relates to an air preheater, comprising a plurality of preheating units, wherein each air preheating unit comprises a long baffle plate, a sealing piece, a horizontal baffle plate and a short baffle plate, wherein the sealing piece is arranged at the top of the long baffle plate; the horizontal baffle plate is connected between the long baffle plates; and the short baffle plates are arranged between the long baffle plates and the horizontal baffle plates. The direct air leakage of the air preheater is in inverse proportion to the square root of the number of sealing passes, so that with the air preheater, the air leakage rate of the preheater can be further reduced, and the economy for running of a power generating unit at a power station is improved.
Description
Technical field
The utility model relates to a kind of air preheater, particularly a kind of rotary regenerative air preheater that is used for generating set.
Background technology
Air preheater is to utilize the heat of flue gas to come a kind of heat-exchange apparatus of heating flame required air, the important indicator of examining this equipment performance is exhaust gas temperature and air leak rate of air curtain, because there is pressure reduction in the inner fume side of air preheater (negative pressure) with air side (malleation), leakage is can hardly be avoided, but how amount of leakage is reduced to minimum, become particularly important.
In the past, the air preheater that manufactured and designed mostly adopts 36 storehouse double sealing structures.Particularly for the big unit of 600MW and 1000MW, because the diameter of rotor is very big, the double containment in the outside is difficult to air leak rate of air curtain is lowered.When air-heater leakage is excessive, also will influence boiler output, air leak rate of air curtain causes exhaust gas temperature to reduce greatly, and the acceleration back-end ductwork is perishable.
In sum, be necessary to design a kind of air preheater that has the novel seal system in fact,, thereby improve plant generator unit performance driving economy with the raising sealing effectiveness.
The utility model content
The purpose of this utility model provides a kind of air preheater that has the novel seal system, improves the air leak rate of air curtain of sealing effectiveness, reduction preheater, improves plant generator unit performance driving economy.
Air preheater of the present utility model is design like this:
A kind of air preheater, comprise a plurality of preheating units, wherein: each preheating unit comprises long dividing plate, is arranged on the diaphragm seal at described long dividing plate top, be connected the lateral partitions between the described long dividing plate, be arranged on the breviseptum between described long dividing plate and the lateral partitions.
As preferred implementation, described breviseptum top is provided with apex seal, and described breviseptum end is provided with the axial seal sheet.
As preferred implementation, described apex seal, axial seal sheet are by on the fixing described breviseptum of fixture.
As preferred implementation, the top of described lateral partitions is provided with the transverse sealing sheet.
As preferred implementation, described a plurality of preheating units entad circumference array are arranged.
As preferred implementation, described lateral partitions is arranged on the middle part of described long dividing plate.
As preferred implementation, described preheating unit comprises that three described long dividing plates, one are connected the lateral partitions between the described long dividing plate and are arranged on two breviseptums between described long dividing plate and the lateral partitions.
Because directly leak out and the square root that seals the road number of air preheater are inversely proportional to, therefore air preheater of the present utility model can further reduce the air leak rate of air curtain of preheater, improves plant generator unit performance driving economy.
Description of drawings
Below in conjunction with the drawings and specific embodiments air preheater of the present utility model is described in further detail.
Fig. 1 is the structural representation of the preheating unit of air preheater of the present utility model;
Fig. 2 is the internal structure schematic diagram of air preheater of the present utility model.
The component Name of each label representative is as follows in the accompanying drawing:
10 long dividing plate 100 diaphragm seals 12 lateral partitions
120 transverse sealing sheets, 14 breviseptums, 1 42 apex seals
144 axial seal sheets
The specific embodiment
Need to prove, describe below the word " preceding " that uses, " back ", " left side ", " right side ", " on " and D score refer to direction in the accompanying drawing, word " interior " and " outward " refer to respectively towards or away from the direction of the utility model or its specific features geometric center.
The purpose of this utility model is to provide a kind of air preheater, improves the air leak rate of air curtain of sealing effectiveness, reduction preheater, improves plant generator unit performance driving economy.Specifically, air preheater of the present utility model is the pressure reduction that reduces air side and fume side by the road number that increases diaphragm seal, reveals thereby reduce, and realizes reducing the purpose of air leak rate of air curtain, realizes energy-saving and cost-reducing.Air preheater of the present utility model for this reason can adopt following technical scheme.
See also Fig. 2, the preheating unit 1 that air preheater of the present utility model is arranged by a plurality of entad circumference array is formed.See also Fig. 1, wherein each preheating unit 1 comprises long dividing plate 10, be arranged on the diaphragm seal 100 at described long dividing plate 10 tops, be connected the lateral partitions 12 between the described long dividing plate 10, be arranged on the breviseptum 14 between described long dividing plate 10 and the lateral partitions 12, and the apex seal 142 and the axial seal sheet 144 that is arranged on described breviseptum 14 ends that are arranged on described breviseptum 14 tops.
Preferably, preheating unit 1 comprises that three described long dividing plates 10, one are connected the lateral partitions 12 between the described long dividing plate 10 and are arranged on two breviseptums 14 between described long dividing plate 10 and the lateral partitions 12.It will be understood by those skilled in the art that above-mentioned configuration mode only is a kind of preferred implementation, is not the unique embodiment of the utility model.
In order to prevent that leakage air from flowing to the center position of air preheater, preferably, is provided with transverse sealing sheet 120 at the top of described lateral partitions 12.So just can finish inboard double sealing sheet, the structure setting of the outside four road diaphragm seals, thus reach the purpose that reduces air leak rate of air curtain.
In addition, preferably, the middle part that roughly is arranged on described long dividing plate 10 of described lateral partitions 12.Described apex seal 142, axial seal sheet 144 are by on the fixing described breviseptum 14 of fixture.
Air preheater of the present utility model can be by the concrete size of designer according to preheater, design described long dividing plate 10, lateral partitions 12 and breviseptum 14, design corresponding diaphragm seal 100, transverse sealing sheet 120, apex seal 142 and axial seal sheet 144 according to above-mentioned 3 median septums then, the last fixture that is used for diaphragm seal of designing again, and produce by the workshop manufacturing, the on-the-spot installation realized the operation of going into operation at last.
Because air preheater of the present utility model has increased by one lateral partitions 12 and corresponding transverse sealing sheet 120 in the about position intermediate of each preheating unit, thereby realize the extra purpose that increases by one diaphragm seal of each preheating unit.Such design reduces the pressure reduction of air side and fume side greatly, reduces inleakage, reaches the purpose that cuts down the consumption of energy.
The above embodiment has only expressed several embodiment of the present utility model; it describes comparatively concrete and detailed; but can not therefore be interpreted as restriction to the utility model claim; should be noted that for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (7)
1. air preheater, this air preheater comprises a plurality of preheating units, it is characterized in that: each preheating unit comprises long dividing plate, be arranged on the diaphragm seal at described long dividing plate top, be connected the lateral partitions between the described long dividing plate, be arranged on the breviseptum between described long dividing plate and the lateral partitions.
2. air preheater according to claim 1 is characterized in that: described breviseptum top is provided with apex seal, and described breviseptum end is provided with the axial seal sheet.
3. air preheater according to claim 2 is characterized in that: described apex seal, axial seal sheet are by on the fixing described breviseptum of fixture.
4. according to any described air preheater of claim 1-3, it is characterized in that: the top of described lateral partitions is provided with the transverse sealing sheet.
5. air preheater according to claim 4 is characterized in that: described a plurality of preheating units entad circumference array are arranged.
6. air preheater according to claim 5 is characterized in that: described lateral partitions is arranged on the middle part of described long dividing plate.
7. air preheater according to claim 6 is characterized in that: described preheating unit comprises that three described long dividing plates, one are connected the lateral partitions between the described long dividing plate and are arranged on two breviseptums between described long dividing plate and the lateral partitions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206434641U CN201885255U (en) | 2010-12-01 | 2010-12-01 | Air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206434641U CN201885255U (en) | 2010-12-01 | 2010-12-01 | Air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201885255U true CN201885255U (en) | 2011-06-29 |
Family
ID=44182801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206434641U Expired - Lifetime CN201885255U (en) | 2010-12-01 | 2010-12-01 | Air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201885255U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726357A (en) * | 2017-11-03 | 2018-02-23 | 东方电气集团东方锅炉股份有限公司 | The Site Welding mounting process of half modulus storehouse lattice and packaging technology and rotary regenerative air heater |
| CN113405117A (en) * | 2021-06-08 | 2021-09-17 | 国家能源集团国源电力有限公司 | Air preheating equipment |
-
2010
- 2010-12-01 CN CN2010206434641U patent/CN201885255U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726357A (en) * | 2017-11-03 | 2018-02-23 | 东方电气集团东方锅炉股份有限公司 | The Site Welding mounting process of half modulus storehouse lattice and packaging technology and rotary regenerative air heater |
| CN107726357B (en) * | 2017-11-03 | 2024-01-12 | 东方电气集团东方锅炉股份有限公司 | Semi-modulus bin, assembly process and field welding installation process of rotary air preheater |
| CN113405117A (en) * | 2021-06-08 | 2021-09-17 | 国家能源集团国源电力有限公司 | Air preheating equipment |
| CN113405117B (en) * | 2021-06-08 | 2022-11-29 | 国家能源集团国源电力有限公司 | Air preheating equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |