CN214145935U - Submerged pump oil seal device in wet desulphurization system - Google Patents
Submerged pump oil seal device in wet desulphurization system Download PDFInfo
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- CN214145935U CN214145935U CN202022165066.XU CN202022165066U CN214145935U CN 214145935 U CN214145935 U CN 214145935U CN 202022165066 U CN202022165066 U CN 202022165066U CN 214145935 U CN214145935 U CN 214145935U
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- oil seal
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- seal
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Abstract
The submerged pump oil seal device in the wet desulphurization system comprises a pump shaft, wherein the front end of the pump shaft is connected with a mechanical seal through an oil seal shaft sleeve, the front end of the mechanical seal is provided with an impeller, and the contact part of the pump shaft and the oil seal shaft sleeve is provided with an oil seal. The utility model discloses increase the oil blanket axle sleeve in the oil blanket position, prevent the direct wearing and tearing pump shaft of skeleton oil blanket.
Description
Technical Field
The utility model relates to a wet flue gas desulfurization technical field of coal industry, thermal power enterprise, in particular to submerged pump oil blanket device in wet flue gas desulfurization system.
Background
According to the existing 80FY-25 type submerged pump, the framework oil seal is directly arranged on the pump shaft in the using process, the pump shaft is abraded and bent for many times, and the pump shaft is scrapped, so that the maintenance cost of the submerged pump is increased.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, the utility model aims to provide an oil seal device of submerged pump in wet flue gas desulfurization system increases the oil blanket axle sleeve in the oil blanket position, prevents the direct wearing and tearing pump shaft of skeleton oil blanket.
In order to realize the purpose, the utility model discloses a technical scheme is:
submerged pump oil seal device among wet flue gas desulfurization system, including pump shaft 1, mechanical seal 6 is connected through oil blanket axle sleeve 2 to 1 front end of pump shaft, and 6 front ends of mechanical seal are provided with impeller 7, pump shaft 1 is provided with oil blanket 3 with oil blanket axle sleeve 2 contact department.
The oil seal shaft sleeve 2 and the pump shaft 1 are sealed by an O-shaped ring 4, and no rotary friction exists.
The shaft diameter of the oil seal position of the pump shaft 1 is phi 40, the shaft diameter of phi 40 is provided with an oil seal shaft sleeve 2, the shaft diameter of phi 40 is provided with two O-shaped ring sealing grooves for mounting O-shaped rings 4.
The oil seal shaft sleeve 2, the oil seal 3, the O-shaped ring 4 and the mechanical seal 6 are positioned on the inner side of the mechanical seal cavity 5.
The oil seal 3 is arranged on an oil seal seat on the mechanical seal cavity 5.
The oil seal 3 is a CSL stainless steel oil seal.
And the outer side of the oil seal shaft sleeve 2 is sprayed with a wear-resistant layer.
The utility model has the advantages that:
the utility model discloses the oil blanket position increases the oil blanket axle sleeve, prevents the direct wearing and tearing pump shaft of skeleton oil blanket.
The oil seal 3 is a CSL stainless steel oil seal, and the sealing effect is improved.
The utility model discloses the spraying wearing layer improves the axle sleeve wearability.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1:
the shaft diameter of the oil seal of the pump shaft 1 is reduced from phi 60 to phi 40, two O-shaped ring seal grooves are processed to facilitate installation of an O-shaped seal 4, an oil seal shaft sleeve 2 is installed at the shaft diameter of phi 40, and an oil seal 3 is fixed on an oil seal seat of a seal cavity 5. The oil seal shaft sleeve 2 and the pump shaft 1 are sealed by an O-shaped ring 4, and the oil seal 3 and the oil seal shaft sleeve 2 are directly sealed.
And the oil seal shaft sleeve 2 is sprayed with a wear-resistant layer to improve the wear resistance of the shaft sleeve.
The oil seal 3 is a CSL stainless steel oil seal, and the sealing effect is improved.
The utility model discloses a theory of operation:
the shaft diameter of the oil seal of the original pump shaft 1 is reduced from phi 60 to phi 40, two O-shaped ring seal grooves are processed to facilitate installation of an O-shaped seal 4, an oil seal shaft sleeve 2 is installed at the phi 40 shaft diameter, and an oil seal 3 is fixed on an oil seal seat of a seal cavity 5.
When the pump operates, the motor drives the pump shaft 1 and the impeller 7 oil seal shaft sleeve 2 to rotate, partial medium enters the mechanical seal cavity 5 through the mechanical seal 6 after the mechanical seal 6 is abraded, the medium contains particulate matters to easily cause abrasion, the oil seal shaft sleeve 2 and the oil seal 3 rub with each other when rotating, the medium can cause abrasion of the outer surface of the oil seal shaft sleeve 2 as a friction agent, and the oil seal shaft sleeve 2 and the pump shaft 1 are sealed by the O-shaped ring 4 without rotating friction.
An oil seal shaft sleeve 2 is added between the pump shaft 1 and the oil seal 3 after transformation, so that direct abrasion of the pump shaft 1 is reduced, and maintenance cost is reduced.
Claims (7)
1. Submerged pump oil seal device among wet flue gas desulfurization system, its characterized in that includes pump shaft (1), mechanical seal (6) are connected through oil blanket axle sleeve (2) to pump shaft (1) front end, and mechanical seal (6) front end is provided with impeller (7), pump shaft (1) and oil blanket axle sleeve (2) contact department are provided with oil blanket (3).
2. The submerged pump oil seal device in the wet desulphurization system according to claim 1, wherein the oil seal shaft sleeve (2) and the pump shaft (1) are sealed by an O-shaped ring (4) without rotation friction.
3. The submerged pump oil sealing device in the wet desulphurization system according to claim 1, wherein the shaft diameter of the oil seal of the pump shaft (1) is phi 40, the oil seal shaft sleeve (2) is arranged at the shaft diameter of phi 40, the O-ring sealing groove for installing the O-ring (4) is arranged at the shaft diameter of phi 40, and the number of the O-ring sealing grooves is two.
4. The submerged pump oil seal device in the wet desulphurization system of claim 3, wherein the oil seal shaft sleeve (2), the oil seal (3), the O-ring (4) and the mechanical seal (6) are positioned inside the mechanical seal cavity (5).
5. The submerged pump oil seal device in the wet desulphurization system of claim 1, wherein the oil seal (3) is arranged on an oil seal seat on the mechanical seal cavity (5).
6. The submerged pump oil seal device in wet desulphurization system of claim 1, characterized in that the oil seal (3) is a CSL stainless steel oil seal.
7. The submerged pump oil seal device in the wet desulphurization system of claim 1, wherein the outer side of the oil seal shaft sleeve (2) is coated with a wear-resistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165066.XU CN214145935U (en) | 2020-09-28 | 2020-09-28 | Submerged pump oil seal device in wet desulphurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165066.XU CN214145935U (en) | 2020-09-28 | 2020-09-28 | Submerged pump oil seal device in wet desulphurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214145935U true CN214145935U (en) | 2021-09-07 |
Family
ID=77558560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022165066.XU Active CN214145935U (en) | 2020-09-28 | 2020-09-28 | Submerged pump oil seal device in wet desulphurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214145935U (en) |
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2020
- 2020-09-28 CN CN202022165066.XU patent/CN214145935U/en active Active
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