CN214788175U - Oil seal spare of condensate pump thrust bearing room antiseep of thermal power plant - Google Patents
Oil seal spare of condensate pump thrust bearing room antiseep of thermal power plant Download PDFInfo
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- CN214788175U CN214788175U CN202120633895.8U CN202120633895U CN214788175U CN 214788175 U CN214788175 U CN 214788175U CN 202120633895 U CN202120633895 U CN 202120633895U CN 214788175 U CN214788175 U CN 214788175U
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Abstract
The utility model discloses an oil seal spare of condensate pump thrust bearing room antiseep of thermal power plant, its characterized in that: the oil seal positioning device comprises an oil seal base and an oil seal cover plate, wherein an oil seal groove with an L-shaped section and a first bolt hole for installation are formed in the oil seal base; a second bolt hole corresponding to the first bolt hole is formed in the oil seal cover plate; the inner diameter of the round hole of the oil seal base is the same as that of the round hole of the oil seal cover plate, and the oil seal cover plate is connected with the oil seal base through bolts. The oil seal base of the utility model selects the flange plate processing bolt hole and the oil seal groove with the inner ring larger than the shaft diameter by 5-10mm, has the advantages of easy material taking, low manufacturing cost, and excellent sealing property because the oil seal cover plate is processed by a polytetrafluoroethylene plate; meanwhile, the oil seal base and the oil seal cover plate can be integrally sleeved in the bearing for installation, and can also be symmetrically cut and respectively embedded in the bearing for installation, so that the oil seal cover plate is suitable for different installation environments and is convenient to install.
Description
Technical Field
The utility model relates to a condensate pump technical field of thermal power plant, concretely relates to oil seal spare of condensate pump thrust bearing room antiseep of thermal power plant.
Background
The Huaneng left-right coal-electricity Limited liability company has two units and four condensate pumps, which are produced by Xiang electric long sand water pump factories and have the model of C720 III-4. Because long-time operation, thrust bearing room oil blanket and axle friction lead to oil blanket department shaft diameter to reduce, and the oil blanket seals the effect and worsens, appears the great condition of oil impregnate from this in the operation process.
Therefore, technicians of the company of China can process and reform the existing flange into an oil seal part, and provide a new technical scheme for preventing the bearing chamber from leaking.
Disclosure of Invention
The utility model discloses overcome current defect, solve the problem of the oil blanket seepage that provides among the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a technical scheme: the utility model provides an oil seal spare of condensate pump thrust bearing room antiseep of thermal power plant which characterized in that: the oil seal positioning device comprises an oil seal base and an oil seal cover plate, wherein an oil seal groove with an L-shaped section and a first bolt hole for installation are formed in the oil seal base; a second bolt hole corresponding to the first bolt hole is formed in the oil seal cover plate; the inner diameter of the round hole of the oil seal base is the same as that of the round hole of the oil seal cover plate, and the oil seal cover plate is connected with the oil seal base through bolts.
Furthermore, the inner diameter of the oil seal base is 5-10mm larger than the shaft diameter of the bearing.
Further, the width and the depth of the oil seal groove are larger than or equal to the width and the thickness of the oil seal.
Further, the oil seal cover plate is made of hard sealing materials, and the thickness of the oil seal cover plate is 3mm or 5 mm.
Further, the oil seal cover plate is a polytetrafluoroethylene plate.
Further, the oil seal base and the oil seal cover plate can be respectively formed in an integrated mode or symmetrically cut.
Compared with the sealing in the existing equipment, the sealing device has the following beneficial effects:
the oil seal base of the utility model selects the flange plate processing bolt hole and the oil seal groove with the inner ring larger than the shaft diameter by 5-10mm, has the advantages of easy material taking, low manufacturing cost, and excellent sealing property because the oil seal cover plate is processed by a polytetrafluoroethylene plate; meanwhile, the oil seal base and the oil seal cover plate can be integrally sleeved in the bearing for installation, and can also be symmetrically cut and respectively embedded in the bearing for installation, so that the oil seal cover plate is suitable for different installation environments and is convenient to install.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic perspective view of an oil seal base according to an embodiment of the present invention;
FIG. 3 is a top view of an embodiment of the present invention;
fig. 4 is a schematic perspective view of an oil seal cover plate in an embodiment of the present invention;
fig. 5 is a top view of the oil seal cover plate in the embodiment of the present invention.
In the figure: the oil seal base is 1, the oil seal groove is 101, the first bolt hole is 102, the oil seal positioning pin hole is 103, the oil seal cover plate is 2, and the second bolt hole is 201.
Detailed Description
The technical solution of the present invention will be explained in further detail with reference to the accompanying drawings.
As shown in attached figures 1, 2 and 4, the anti-leakage oil seal of the heat-engine plant condensate pump thrust bearing chamber is characterized in that: the oil seal positioning structure comprises an oil seal base 1 and an oil seal cover plate 2, wherein an oil seal groove 101 with an L-shaped section and a first bolt hole 102 for installation are formed in the oil seal base 1, at least one oil seal positioning pin hole 103 is formed in the bottom of the oil seal groove 101, the first bolt holes 102 are arranged in pairs along the radial direction of the oil seal base 1, and the number of the first bolt holes comprises at least one pair; a second bolt hole 201 corresponding to the first bolt hole 102 is formed in the oil seal cover plate 2; the inner diameter of the round hole of the oil seal base 1 is the same as that of the round hole of the oil seal cover plate 2, and the oil seal cover plate 2 is connected with the oil seal base 1 through bolts.
Further, the inner diameter of the oil seal base 1 is 5-10mm larger than the shaft diameter of the bearing.
Further, the width and depth of the oil seal groove 101 are greater than or equal to the width and thickness of the oil seal.
Further, the oil seal cover plate 2 is made of hard sealing materials, and the thickness of the oil seal cover plate is 3mm or 5 mm.
Further, the oil seal cover plate 2 is a polytetrafluoroethylene plate.
Referring to fig. 3 and 5, in a specific implementation, a flange plate with an inner diameter of 200mm, an outer diameter of 360mm and a thickness of 20mm is selected, and 3 pairs of bolt holes one 102 with an inner diameter of 4mm are machined along the radial direction, an included angle between every two adjacent bolt holes one 102 is 60 degrees, and the center distance between every two bolt holes opposite in the radial direction is 330 mm. An oil seal groove 101 with the outer diameter of 300mm and the depth of 8mm and the L-shaped section is processed on one end face of the flange plate, and an oil seal positioning pin hole 103 with the inner diameter of 5mm and the depth of 5mm is drilled in the bottom of the oil seal groove 101, so that an oil seal base 1 is manufactured; choose a polytetrafluoroethylene board processing internal diameter to be 200mm, the external diameter is 360mm, the thickness is 3 mm's apron, along radial processing 3 bolt hole two 201 that the internal diameter is 4mm, two adjacent bolt hole two 201 contained angles are 60 degrees, and two radial relative bolt hole centre-to-centre spacings are 330mm to form oil blanket apron 2.
Under the condition that a pump shaft coupler is pulled out by a hoisting motor, the manufactured oil seal base 1 is sleeved into a pump shaft and is arranged at the upper part of a bearing chamber, the outer circle of the oil seal base 1 and a crude oil cover plate 2 of the bearing chamber are spot-welded by electric welding, an oil seal is arranged in an oil seal groove 101, and an oil seal positioning pin is inserted into the oil seal groove. And connecting the oil seal cover plate 2 with the oil seal base 1 by using six M9 bolts, fixing the cover plate on the oil seal base 1, and finishing the installation.
And under the condition that the pump shaft coupling is pulled out without a hoisting motor, symmetrically cutting the oil seal base 1 and the oil seal cover plate 2. And installing the cut oil seal base 1 on the upper part of the bearing chamber, and performing spot welding with the crude oil cover plate 2. An oil seal is placed in the oil seal groove 101, and an oil seal positioning pin is inserted therein. The symmetrically cut oil seal cover plates 2 are arranged on the upper portion of the oil seal base 1 and fastened with the oil seal base 1 through bolts.
It is obvious that the described embodiments are only a part of the embodiments of the optimization and refinement apparatus, and not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step based on the embodiments in the optimization and refinement apparatus belong to the protection scope of the optimization and refinement apparatus.
Claims (6)
1. The utility model provides an oil seal spare of condensate pump thrust bearing room antiseep of thermal power plant which characterized in that: the oil seal positioning structure comprises an oil seal base (1) and an oil seal cover plate (2), wherein an oil seal groove (101) with an L-shaped section and a first bolt hole (102) for installation are formed in the oil seal base (1), at least one oil seal positioning pin hole (103) is formed in the bottom of the oil seal groove (101), the first bolt holes (102) are arranged in pairs along the radial direction of the oil seal base (1), and the number of the first bolt holes comprises at least one pair; a second bolt hole (201) corresponding to the first bolt hole (102) is formed in the oil seal cover plate (2); the inner diameter of a round hole of the oil seal base (1) is the same as that of a round hole of the oil seal cover plate (2), and the oil seal cover plate (2) is connected with the oil seal base (1) through bolts.
2. The anti-leakage oil seal of the thermal power plant condensate pump thrust bearing chamber as claimed in claim 1, wherein: the inner diameter of the oil seal base (1) is 5-10mm larger than the shaft diameter of the bearing.
3. The anti-leakage oil seal of the thermal power plant condensate pump thrust bearing chamber as claimed in claim 2, wherein: the width and the depth of the oil seal groove (101) are larger than or equal to the width and the thickness of an oil seal.
4. The anti-leakage oil seal of the thermal power plant condensate pump thrust bearing chamber as claimed in claim 1, wherein: the oil seal cover plate (2) is made of hard sealing materials, and the thickness of the oil seal cover plate is 3mm or 5 mm.
5. The anti-leakage oil seal of the thermal power plant condensate pump thrust bearing chamber as claimed in claim 4, wherein: the oil seal cover plate (2) is a polytetrafluoroethylene plate.
6. The anti-leakage oil seal of the thermal power plant condensate pump thrust bearing chamber as claimed in any one of claims 1 to 5, wherein: the oil seal base (1) and the oil seal cover plate (2) are respectively two parts which are independently integrally formed or symmetrically cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120633895.8U CN214788175U (en) | 2021-03-29 | 2021-03-29 | Oil seal spare of condensate pump thrust bearing room antiseep of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120633895.8U CN214788175U (en) | 2021-03-29 | 2021-03-29 | Oil seal spare of condensate pump thrust bearing room antiseep of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214788175U true CN214788175U (en) | 2021-11-19 |
Family
ID=78667601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120633895.8U Active CN214788175U (en) | 2021-03-29 | 2021-03-29 | Oil seal spare of condensate pump thrust bearing room antiseep of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214788175U (en) |
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2021
- 2021-03-29 CN CN202120633895.8U patent/CN214788175U/en active Active
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