CN213176806U - Soot blower shaft seal structure - Google Patents
Soot blower shaft seal structure Download PDFInfo
- Publication number
- CN213176806U CN213176806U CN202021984515.7U CN202021984515U CN213176806U CN 213176806 U CN213176806 U CN 213176806U CN 202021984515 U CN202021984515 U CN 202021984515U CN 213176806 U CN213176806 U CN 213176806U
- Authority
- CN
- China
- Prior art keywords
- seal
- soot blower
- copper alloy
- labyrinth seals
- ceramic
- 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 - Fee Related
Links
- 239000004071 soot Substances 0.000 title claims abstract description 23
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a soot blower bearing seal structure, including the soot blower axle, overlap in proper order at the soot blower epaxial and be equipped with steel sheet and aluminium seal box, open flutedly in the aluminium seal box inboard, be equipped with copper alloy labyrinth seal and ceramic seal in the recess. The copper alloy labyrinth seals are divided into two parts, and the ceramic seal is positioned between the two copper alloy labyrinth seals. The utility model discloses copper alloy labyrinth seals can reduce sound combination position clearance and can not the bite again, and ceramic seal has certain flexibility, thereby can in time compensate the effect that the clearance reaches long-term sealing under two blocks of alloy copper labyrinth seals's extrusion after wearing and tearing.
Description
Technical Field
The utility model relates to a shaft seal structure technical field especially relates to a soot blower bearing seal structure.
Background
Soot blowers are widely applied in thermal power plants. There is a hearth soot blower. An air preheater soot blower is arranged. A desulfurization (economizer) soot blower, and the like.
The blowing gun of the soot blower of a power plant is generally sealed by a packing. Under the friction of the gun rod and the high temperature, the packing is worn, so that hydrogen sulfide gas and dust are leaked out of the gap. Normally, the furnace works under negative pressure, but occasionally, dust is sprayed out under positive pressure.
Hydrogen sulfide is a gas with a strong odor. It is extremely toxic at 1 mg per cubic meter. Can stimulate eyes, mouth and nose, and cause headache. And even dangerous to life. Therefore, the hydrogen sulfide leakage is prevented, the shaft seal of the soot blower is reformed to eliminate the on-site odor, and the safety of personal equipment is ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a soot blower shaft seal structure in order to remedy the defects of the prior art.
The utility model discloses a realize through following technical scheme:
a soot blower shaft seal structure comprises a soot blower shaft, wherein a steel plate and an aluminum seal box are sequentially sleeved on the soot blower shaft, a groove is formed in the inner side of the aluminum seal box, and a copper alloy labyrinth seal and a ceramic seal are arranged in the groove.
The steel plate is connected with the aluminum sealing box through bolts.
The copper alloy labyrinth seals are divided into two parts, and the ceramic seal is positioned between the two copper alloy labyrinth seals.
Graphite seals are filled on two sides of the ceramic seal.
The utility model has the advantages that: the utility model discloses copper alloy labyrinth seals can reduce sound combination position clearance and can not the bite again, and ceramic seal has certain flexibility, thereby can in time compensate the effect that the clearance reaches long-term sealing under two blocks of alloy copper labyrinth seals's extrusion after wearing and tearing.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, a soot blower shaft seal structure comprises a soot blower shaft 1, a steel plate 2 and an aluminum seal box 3 are sequentially sleeved on the soot blower shaft 1, a groove is formed in the inner side of the aluminum seal box 3, and a copper alloy labyrinth seal 4 and a ceramic seal 5 are arranged in the groove. The copper alloy labyrinth seal 4 can reduce the clearance between the dynamic and static joint parts and can not be jammed. The copper alloy labyrinth seal is formed by a copper alloy plate with labyrinth grooves.
The steel plate 2 is connected with the aluminum sealing box 3 through bolts.
The copper alloy labyrinth seals 4 are provided with two channels, and the ceramic seal 5 is positioned between the two copper alloy labyrinth seals 4. The ceramic seal 5 has certain flexibility, and can compensate the clearance in time under the extrusion of the two copper alloy labyrinth seals after being worn, so that the ceramic seal can be sealed for a long time.
Claims (4)
1. A soot blower shaft seal structure is characterized in that: the soot blower comprises a soot blower shaft, a steel plate and an aluminum sealing box are sequentially sleeved on the soot blower shaft, a groove is formed in the inner side of the aluminum sealing box, and a copper alloy labyrinth seal and a ceramic seal are arranged in the groove.
2. A sootblower shaft seal arrangement according to claim 1, wherein: the steel plate is connected with the aluminum sealing box through bolts.
3. A sootblower shaft seal arrangement according to claim 1, wherein: the copper alloy labyrinth seals are divided into two parts, and the ceramic seal is positioned between the two copper alloy labyrinth seals.
4. A sootblower shaft seal arrangement according to claim 3, wherein: graphite seals are filled on two sides of the ceramic seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021984515.7U CN213176806U (en) | 2020-09-11 | 2020-09-11 | Soot blower shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021984515.7U CN213176806U (en) | 2020-09-11 | 2020-09-11 | Soot blower shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176806U true CN213176806U (en) | 2021-05-11 |
Family
ID=75772963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021984515.7U Expired - Fee Related CN213176806U (en) | 2020-09-11 | 2020-09-11 | Soot blower shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198578A (en) * | 2021-12-21 | 2022-03-18 | 中国科学院工程热物理研究所 | A kind of flexible connection device of high temperature and high pressure pipeline and using method thereof |
-
2020
- 2020-09-11 CN CN202021984515.7U patent/CN213176806U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198578A (en) * | 2021-12-21 | 2022-03-18 | 中国科学院工程热物理研究所 | A kind of flexible connection device of high temperature and high pressure pipeline and using method thereof |
| CN114198578B (en) * | 2021-12-21 | 2024-02-23 | 中国科学院工程热物理研究所 | Flexible connection device of high-temperature high-pressure pipeline and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |