CN213176796U - Air preheater lifting rod seal structure - Google Patents
Air preheater lifting rod seal structure Download PDFInfo
- Publication number
- CN213176796U CN213176796U CN202021984535.4U CN202021984535U CN213176796U CN 213176796 U CN213176796 U CN 213176796U CN 202021984535 U CN202021984535 U CN 202021984535U CN 213176796 U CN213176796 U CN 213176796U
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- seal
- lifting rod
- seal box
- sealed
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Abstract
The utility model discloses an air preheater lifting rod seal structure, including the lifting rod, be equipped with sealed room at the lifting rod lower extreme, be equipped with the steel ear that has the through-hole in sealed outdoor side, it is equipped with seal box one and seal box two to lie in sealed room top cover in proper order on the lifting rod, all open on seal box one and seal box two with the steel ear on the corresponding bolt hole of through-hole, the stay bolt passes bolt hole and the through-hole on the steel ear on seal box one and the seal box two, and is fixed through the nut seal box an inboard be equipped with high temperature resistant high polymer seal one, be equipped with high temperature resistant high polymer seal two in two inboards of seal box. The utility model discloses in sealed box, the downside increases that twice high temperature resistant high polymer is sealed, and the downside increases that one high temperature resistant high polymer is sealed, and high temperature resistant, stand wear and tear, have the high elasticity again simultaneously, not only sealed reliable, life cycle is still long.
Description
Technical Field
The utility model relates to an axle seal structure technical field especially relates to an air preheater lifting rod seal structure.
Background
At present, the existing sealing structure of the lifting rod of the air preheater adopts packing for sealing and is compacted by a flange. Packing is easily embrittled at high temperatures. Due to the fact that the lifting rod continuously ascends and descends, the brittle packing is ground into powder, and hot air and dust are leaked finally.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air preheater lifting rod seal structure in order to compensate the defect of prior art.
The utility model discloses a realize through following technical scheme:
the utility model provides an air preheater lifting rod seal structure, is equipped with sealed room including the lifting rod at the lifting rod lower extreme, is equipped with the steel ear that has the through-hole in sealed outdoor side, lies in sealed room top cover in proper order on the lifting rod and is equipped with seal box one and seal box two, all opens on seal box one and seal box two with the steel ear on the corresponding bolt hole of through-hole, the stay bolt passes bolt hole and the steel ear on the bolt hole on seal box one and the seal box two on through-hole, it is fixed through the nut seal box one inboard be equipped with high temperature resistant high polymer seal one, be equipped with high temperature resistant high polymer seal two in two inboards of seal box.
The clamping sleeve is sleeved on the outer side of the first high-temperature-resistant polymer seal, so that the first high-temperature-resistant polymer seal can better hold the lifting rod tightly, and the sealing performance is better.
The high-temperature-resistant high polymer seal is divided into an upper seal and a lower seal.
The utility model has the advantages that: the utility model discloses in sealed box, the downside increases that twice high temperature resistant high polymer is sealed, and the downside increases that one high temperature resistant high polymer is sealed, and high temperature resistant, stand wear and tear, have the high elasticity again simultaneously, not only sealed reliable, life cycle is still long.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in figure 1, an air preheater lifting rod sealing structure comprises a lifting rod 1, wherein a sealing chamber 2 is arranged at the lower end of the lifting rod 1, a steel lug 3 with a through hole is arranged on the outer side of the sealing chamber 2, a first sealing box 4 and a second sealing box 5 are sequentially sleeved on the lifting rod 1 above the sealing chamber 2, bolt holes corresponding to the through hole in the steel lug 3 are formed in the first sealing box 4 and the second sealing box 5, a long bolt 6 penetrates through the bolt holes in the first sealing box 4 and the second sealing box 5 and the through hole in the steel lug 3 and is fixed through a nut, a first high-temperature-resistant high polymer sealing body 7 is arranged on the inner side of the first sealing box 4, and a second high-temperature-resistant high polymer sealing body 8 is arranged on the inner side of the second sealing box 5. The high-temperature-resistant high polymer seal has the advantages of high temperature resistance, wear resistance, high elasticity, reliable seal and long service life.
The cutting sleeve 9 is sleeved on the outer side of the high-temperature-resistant high polymer sealing I7, so that the high-temperature-resistant high polymer is sealed to better hold the lifting rod tightly, and the sealing performance is better.
The high-temperature-resistant high polymer sealing I7 is divided into an upper sealing and a lower sealing, and the sealing effect is good.
In the embodiment, the first high-temperature-resistant polymer seal 7 is polytetrafluoroethylene packing, and the second high-temperature-resistant polymer seal 8 is fluororubber.
Claims (3)
1. The utility model provides an air preheater lifting rod seal structure which characterized in that: including the lifting rod, be equipped with sealed room at the lifting rod lower extreme, be equipped with the steel ear that has the through-hole in sealed outdoor side, lie in sealed room top cover in proper order on the lifting rod and be equipped with seal box one and seal box two, all open on seal box one and seal box two with the steel ear on the corresponding bolt hole of through-hole, the stay bolt passes bolt hole and the through-hole on the steel ear on seal box one and the seal box two, and is fixed through the nut seal box one inboard be equipped with high temperature resistant high polymer seal one, be equipped with high temperature resistant high polymer seal two in two inboards of seal box.
2. The air preheater lifting rod sealing structure of claim 1, wherein: and a cutting sleeve is sleeved on the outer side of the first high-temperature-resistant polymer seal.
3. The air preheater lifting rod sealing structure of claim 1, wherein: the high-temperature-resistant high polymer seal is divided into an upper seal and a lower seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021984535.4U CN213176796U (en) | 2020-09-11 | 2020-09-11 | Air preheater lifting rod seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021984535.4U CN213176796U (en) | 2020-09-11 | 2020-09-11 | Air preheater lifting rod seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176796U true CN213176796U (en) | 2021-05-11 |
Family
ID=75772954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021984535.4U Active CN213176796U (en) | 2020-09-11 | 2020-09-11 | Air preheater lifting rod seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176796U (en) |
-
2020
- 2020-09-11 CN CN202021984535.4U patent/CN213176796U/en active Active
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| GR01 | Patent grant |