CN214094579U - Radial sealing device of air preheater - Google Patents
Radial sealing device of air preheater Download PDFInfo
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- CN214094579U CN214094579U CN202023268364.8U CN202023268364U CN214094579U CN 214094579 U CN214094579 U CN 214094579U CN 202023268364 U CN202023268364 U CN 202023268364U CN 214094579 U CN214094579 U CN 214094579U
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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 the technical field of air preheater sealing systems, in particular to an air preheater radial sealing device which is provided with a sector plate, a rotor and a central cylinder, wherein the rotor is sleeved on the central cylinder and moves circularly around the central cylinder, two sides of the rotor are respectively and uniformly provided with a partition plate which is radially connected with the rotor, two ends of the central cylinder are respectively connected with the sector plate, a sealing component is arranged between the sector plate and the partition plate, the air preheater radial sealing device is characterized in that the sealing component comprises a sealing pad, a sealing plate, a sealing strip, a locking bolt, a sealing boss and a supporting plate, the sealing plate is tightly pressed on the elastic sealing pad through the locking bolt, the lower plate surface of the sealing plate is provided with the sealing strip, the side surface of the partition plate below the sealing strip is connected with the supporting plate, the side surface of the lower end of the supporting plate is connected with the partition plate, the upper end of the sealing boss is connected with the supporting plate, the sealing device has the advantages of simple structure, convenience in installation, good sealing effect, long service life and the like.
Description
Technical Field
The utility model belongs to the technical field of air preheater sealing system technique and specifically relates to a simple structure, simple to operate, sealed effectual, the increase of life's air preheater radial seal device.
Background
As is known, the rotary air preheater rotates slowly during operation, flue gas enters the flue gas side of the air preheater and is then discharged, heat carried in the flue gas is absorbed by the cooling fins in the air preheater, and then the air preheater rotates slowly, and the cooling fins move to the air side and transfer the heat to air before entering the boiler.
At present, under the conditions of various factors such as change of operation conditions along with increase of operation time, change of coal types for combustion and the like, air leakage of a preheater is serious, air leakage rate is high, and economic operation indexes of a unit are seriously influenced.
Disclosure of Invention
The utility model aims at solving the deficiencies of the prior art, providing a simple structure, simple to operate, sealed effectual, the increase of life's air preheater radial seal device.
The utility model provides a technical scheme that its technical problem adopted is:
a radial sealing device of an air preheater is provided with a sector plate, a rotor and a central cylinder, wherein the rotor is sleeved on the central cylinder and moves circularly around the central cylinder, partition plates which are radially connected with the rotor are uniformly distributed on two sides of the rotor respectively, two ends of the central cylinder are connected with the sector plate respectively, and a sealing assembly is arranged between the sector plate and the partition plates Locking through-hole and thread groove are connected with the sector plate, tightly press the sealing plate on the elastic sealing pad through the locking bolt, the lower facial features of closing plate be equipped with the sealing strip, the sealing strip is connected with the closing plate along sector plate radial direction equipartition, the sealing strip establish to elastic sealing strip, the baffle side joint support board of sealing strip below, the lower extreme side of backup pad is connected with the baffle, the upper end of backup pad is equipped with the upper end and personally submits curved sealed boss, the lower extreme of sealed boss is connected with the backup pad, the upper end of sealed boss extends elastic sealing strip lower extreme side and realizes sealing.
The sealing strip in the distance between minimum to the peak that the maximum width between the adjacent sealing strip is less than sealed boss, guarantee that another sealing strip contacts with sealed boss behind a sealing strip process sealed boss peak, guarantee holistic sealed effect.
Elastic sealing strip and elastic sealing pad all establish to high temperature resistance silica gel strip and high temperature resistance silica gel pad, avoid the high temperature flue gas to seal strip and sealed destruction of filling up, increase life.
The utility model discloses owing to adopt above-mentioned structure, have advantages such as simple structure, simple to operate, sealed effectual, life increase.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the sector plate of fig. 1.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in the attached drawing, the radial sealing device of the air preheater is provided with a sector plate 1, a rotor and a central cylinder, wherein the rotor is sleeved on the central cylinder and moves circularly around the central cylinder, partition plates 2 which are radially connected with the rotor are respectively and uniformly distributed on two sides of the rotor, two ends of the central cylinder are respectively connected with the sector plate 1, a sealing assembly is arranged between the sector plate 1 and the partition plates 2, the radial sealing device is characterized in that the sealing assembly comprises a sealing gasket 3, a sealing plate 4, a sealing strip 5, a locking bolt 6, a sealing boss 7 and a supporting plate 8, the sealing gasket 3 is an elastic sealing gasket 3, the elastic sealing gasket 3 is hermetically connected with the lower plate surface of the sector plate 1, the elastic sealing gasket 3 is provided with a locking through hole 9, the sector plate 1 is provided with a thread groove 10 which has the same position as the locking through hole 9, and a sealing plate 4 is arranged below the elastic sealing gasket 3, be equipped with on the closing plate 4 with the elastic sealing pad 3 on the connecting hole 11 that the locking through-hole 9 position is the same, locking bolt 6 passes connecting hole 11, locking through-hole 9 and thread groove 10 in proper order and is connected with sector plate 1, tightly presses closing plate 4 on elastic sealing pad 3 through locking bolt 6, the hypoplastron of closing plate 4 be equipped with sealing strip 5, sealing strip 5 is connected with closing plate 4 along 1 radial direction equipartitions of sector plate, sealing strip 5 establish to elastic sealing strip 5, 2 side joint support boards 8 of baffle of sealing strip 5 below, the lower extreme side of backup pad 8 is connected with baffle 2, the upper end of backup pad 8 is equipped with the upper end and personally submits curved sealed boss 7, the lower extreme of sealed boss 7 is connected with backup pad 8, the upper end of sealed boss 7 extends elastic sealing strip 5 lower extreme side and realizes sealedly.
Further, the maximum width between adjacent sealing strips 5 in the sealing strips 5 is smaller than the distance from the lowest point to the highest point of the sealing boss 7, so that after one sealing strip 5 passes through the highest point of the sealing boss 7, the other sealing strip 5 is ensured to be in contact with the sealing boss 7, and the integral sealing effect is ensured.
Further, elastic sealing strip 5 and elastic sealing pad 3 all establish to high temperature resistance silica gel strip and high temperature resistance silica gel pad, avoid the high temperature flue gas to seal strip 5 and sealed 3 destruction of filling up, increase life.
When the utility model is used, because the sealing gasket 3, the sealing plate 4 and the sealing strip 5 are added on the lower end surface of the sector plate 1, the friction damage of the sealing component in the prior art to the sector plate 1 is avoided, and because the sealing gasket 3 is arranged as an elastic sealing gasket 3 and is in sealing connection with the sector plate 1, the sealing plate 4 is tightly pressed on the elastic sealing gasket 3 through the locking bolt 6, when the sealing strip 5 is abraded and damaged for a long time, the sealing plate 4 and the sealing strip 5 can be replaced, meanwhile, the sealing boss 7 is contacted with the sealing strip 5 to realize the sealing function, so the service life of the sealing component is prolonged, the sealing effect is better, backup pad and baffle between can be through bolt sealing connection, also can be through welding sealing connection, the utility model discloses owing to adopt above-mentioned structure, have advantages such as simple structure, simple to operate, sealed effectual, life increase.
Claims (3)
1. A radial sealing device of an air preheater is provided with a sector plate, a rotor and a central cylinder, wherein the rotor is sleeved on the central cylinder and moves circularly around the central cylinder, partition plates which are radially connected with the rotor are uniformly distributed on two sides of the rotor respectively, two ends of the central cylinder are connected with the sector plate respectively, and a sealing assembly is arranged between the sector plate and the partition plates Locking through-hole and thread groove are connected with the sector plate, tightly press the sealing plate on the elastic sealing pad through the locking bolt, the lower facial features of closing plate be equipped with the sealing strip, the sealing strip is connected with the closing plate along sector plate radial direction equipartition, the sealing strip establish to elastic sealing strip, the baffle side joint support board of sealing strip below, the lower extreme side of backup pad is connected with the baffle, the upper end of backup pad is equipped with the upper end and personally submits curved sealed boss, the lower extreme of sealed boss is connected with the backup pad, the upper end of sealed boss extends elastic sealing strip lower extreme side and realizes sealing.
2. The radial sealing device of the air preheater of claim 1, wherein the maximum width between adjacent sealing strips is smaller than the distance from the lowest point to the highest point of the sealing boss, so as to ensure that one sealing strip contacts with the sealing boss after the other sealing strip passes through the highest point of the sealing boss.
3. The radial sealing device of the air preheater according to claim 1, wherein the elastic sealing strip and the elastic sealing gasket are both a high-temperature-resistant silicone strip and a high-temperature-resistant silicone gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023268364.8U CN214094579U (en) | 2020-12-30 | 2020-12-30 | Radial sealing device of air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023268364.8U CN214094579U (en) | 2020-12-30 | 2020-12-30 | Radial sealing device of air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214094579U true CN214094579U (en) | 2021-08-31 |
Family
ID=77435012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023268364.8U Active CN214094579U (en) | 2020-12-30 | 2020-12-30 | Radial sealing device of air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214094579U (en) |
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2020
- 2020-12-30 CN CN202023268364.8U patent/CN214094579U/en active Active
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