CN215003152U - Soft sealing device for reducing air leakage rate of air preheater - Google Patents
Soft sealing device for reducing air leakage rate of air preheater Download PDFInfo
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- CN215003152U CN215003152U CN202120758405.7U CN202120758405U CN215003152U CN 215003152 U CN215003152 U CN 215003152U CN 202120758405 U CN202120758405 U CN 202120758405U CN 215003152 U CN215003152 U CN 215003152U
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- gasket
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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 a gram formula air preheater technical field especially relates to a reduce soft sealing device of air preheater rate of leaking out, including radial gasket, radial gasket fixes on the baffle, still be fixed with soft gasket on the radial gasket, soft gasket passes through clamp plate and bolt and radial gasket is fixed, radial gasket and soft gasket top are the structure of buckling, soft gasket top will be higher than radial gasket top after soft gasket assembles with radial gasket. When the sealing device rotates to the position of the sector plate, the soft sealing sheet is contacted with the sector plate to form a tight and gapless sealing system, and after the sealing device leaves the sector plate, the tail ends of the soft sealing sheet and the radial sealing sheet automatically bounce to seal gaps between the sector plates, and the 'two-pass sealing' is adopted, namely two sealing sheets pass by the sector plate at any moment, so that the aim of controlling air leakage is fulfilled by circulating.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a claim formula air preheater system technical field especially relates to a reduce soft sealing device of air preheater rate of leaking out.
[ background of the invention ]
The large air leakage rate of the capacitance type air pre-heater is a common problem and a problem which is difficult to solve, and in the capacitance type air pre-heater technology, an air leakage preventing or reducing technology, namely a sealing technology, plays an important role. The air leakage of the air preheater can cause the change of the thermal working condition of the unit, along with the increase of the air leakage, the heat exchange efficiency is reduced, the temperature of the discharged smoke is reduced, and even the low-temperature corrosion condition of the cold-end heat exchange element is accelerated; meanwhile, the air leakage also influences the economic operation of the unit, on one hand, the heat efficiency of the boiler is reduced, on the other hand, the power consumption of the primary air fan, the air feeder and the induced draft fan is increased, the plant power consumption is increased, and the power supply coal consumption is increased. The air preheater seal mainly comprises seven parts: hot end radial seal, cold end radial seal, axial seal, cold end bypass seal, hot end bypass seal, sector plate seal, and center barrel seal. The existing research results show that the hot end radial sealing air leakage is the most main factor of the air leakage of the air preheater and accounts for 30-50% of the total amount of the air leakage.
The utility model discloses it is not enough to solve prior art and research and propose.
[ Utility model ] content
The utility model aims at overcoming above-mentioned prior art's shortcoming, providing a soft sealing device of reduction air preheater rate of leaking out, in order to further reduce preheater rate of leaking out promptly, at the preheater rotor, install soft gasket additional on the partition panel, flexible gasket is installed additional to every preheater hot junction radial seal, remains original sealing system.
The utility model discloses can realize through following technical scheme:
the utility model discloses a reduce soft sealing device of air preheater rate of leaking out, including radial gasket, radial gasket fixes on the baffle, still be fixed with soft gasket on the radial gasket, soft gasket passes through clamp plate and bolt and radial gasket is fixed, radial gasket and soft gasket top are the structure of buckling, soft gasket and radial gasket equipment back soft gasket top will be higher than radial gasket top. When the sealing device is assembled with the air preheater, the soft sealing sheet is just assembled on a sector plate on the air preheater, and after the assembly, when the sector plate is not inserted, the top end of the bending part of the soft sealing sheet is higher than the inner side of the radial sealing sheet by 8mm and the outer side of the radial sealing sheet by 18mm, when the sealing device rotates to the position of the sector plate, the soft sealing sheet is contacted with the sector plate to form a tight and gapless sealing system, and after the sealing device leaves the sector plate, because the tail ends of the soft sealing sheet and the radial sealing sheet are both of bending structures, the tail ends of the soft sealing sheet and the radial sealing sheet automatically bounce to seal gaps between the sector plates, and the 'two-pass sealing' is adopted, namely, the sector plate is swept by two sealing sheets at any moment, so that the aim of controlling air leakage is achieved by circulating.
Compared with the prior art, the utility model has the advantages that:
1. the utility model discloses the rate of leaking out of reduction container formula air preheater that can be obvious improves boiler efficiency.
2. The utility model discloses can reduce the fan energy consumption by a wide margin, reduce the station service power consumption, reach energy-conserving effect.
[ description of the drawings ]
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the soft sealing sheet assembly of the present invention;
in the figure: 1. a partition plate; 2. a soft sealing sheet; 3. a radial sealing fin; 4. pressing a plate; 5. a bolt;
[ detailed description ] embodiments
The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings:
as shown in fig. 1-2, the utility model discloses a reduce soft sealing device of air preheater rate of leaking out, including radial gasket 3, radial gasket 3 is fixed on baffle 1, still be fixed with soft gasket 2 on the radial gasket 3, soft gasket 2 is fixed with radial gasket 3 through clamp plate 4 and bolt 5, radial gasket 3 and 2 tops of soft gasket are the structure of buckling, 2 tops of soft gasket 2 and the 3 equipment backs of radial gasket are than 3 tops of radial gasket height. When the sealing device is assembled with the air preheater, the soft sealing sheet 2 is just assembled on a sector plate on the air preheater, and after the assembly, when the sector plate is not inserted, the top end of the bending part of the soft sealing sheet 2 is higher than the inner side of the radial sealing sheet 3 by 8mm and the outer side thereof is 18mm, when the sealing device rotates to the position of the sector plate, the soft sealing sheet 2 is contacted with the sector plate to form a tight and gapless sealing system, when the sealing device leaves the sector plate, because the tail ends of the soft sealing sheet 2 and the radial sealing sheet 3 are both of bending structures, the tail ends of the soft sealing sheet 2 and the radial sealing sheet 3 automatically bounce to seal the gap between the sector plates, and the 'two seals' are adopted, namely the sector plate is swept twice at any moment, and the aim of controlling air leakage is achieved by circulating the two seals.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many changes, modifications, substitutions and variations can be made to the embodiments without departing from the technical principles of the present invention, and these changes, modifications, substitutions and variations should also be regarded as the protection scope of the present invention.
Claims (1)
1. The utility model provides a reduce soft sealing device of air preheater rate of leaking out, includes radial gasket, its characterized in that: radial gasket fixes on the baffle, still be fixed with soft gasket on the radial gasket, soft gasket passes through clamp plate and bolt and radial gasket is fixed, radial gasket and soft gasket top are the structure of buckling, soft gasket and radial gasket equipment back soft gasket top will be higher than radial gasket top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758405.7U CN215003152U (en) | 2021-04-14 | 2021-04-14 | Soft sealing device for reducing air leakage rate of air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758405.7U CN215003152U (en) | 2021-04-14 | 2021-04-14 | Soft sealing device for reducing air leakage rate of air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215003152U true CN215003152U (en) | 2021-12-03 |
Family
ID=79136913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120758405.7U Active CN215003152U (en) | 2021-04-14 | 2021-04-14 | Soft sealing device for reducing air leakage rate of air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215003152U (en) |
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2021
- 2021-04-14 CN CN202120758405.7U patent/CN215003152U/en active Active
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