CN216895770U - Take sealed adjustable turbo generator shaft seal structure of floating ring - Google Patents
Take sealed adjustable turbo generator shaft seal structure of floating ring Download PDFInfo
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- CN216895770U CN216895770U CN202122793782.7U CN202122793782U CN216895770U CN 216895770 U CN216895770 U CN 216895770U CN 202122793782 U CN202122793782 U CN 202122793782U CN 216895770 U CN216895770 U CN 216895770U
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Abstract
The utility model relates to an adjustable turbine generator shaft seal structure with a floating ring seal, and belongs to the technical field of generators. The periphery of the rotor is provided with a shaft seal body, a shaft seal structure is arranged between the shaft seal body and the rotor, and the shaft seal structure comprises an adjacent air seal copper tooth structure and a floating seal ring structure; an air seal copper tooth structure is arranged on the inner side close to the generator, and a floating type sealing ring structure is arranged on the outer side close to the generator. The sealing structure of the utility model adopts two sealing modes to obtain the double-insurance effect, has good sealing effect, can prevent foreign matters from entering the machine, improves the gas purity in the machine and ensures that the insulating part in the machine has no pollution.
Description
Technical Field
The utility model relates to an adjustable turbine generator shaft seal structure with a floating ring seal, and belongs to the technical field of generators.
Background
The air cooling generator uses the circulating air as a cooling medium, and when the generator operates, the outside air can carry impurities to enter the generator, pollute the internal environment of the generator, influence the normal operation of the generator and even damage the generator. To avoid the entry of foreign matter, it is necessary to seal the gap between the shaft seal ring and the rotor. The sealing structure adopted in the prior art is an air sealing copper tooth structure, and high-pressure gas is introduced to respectively blow towards the copper teeth on the inner side and the outer side, so that the air sealing effect is achieved; however, the prior art still has the following defects: 1. the consumption of high-pressure gas is not adjustable; 2. the shaft seal effect is poor, the seal is not tight, and foreign matters are easy to leak into the machine. Therefore, the technical problem how to achieve better shaft seal effect of the steam turbine generator needs to be solved urgently in the technical field
Disclosure of Invention
The utility model aims to solve the technical problem of how to improve the shaft seal effect of the steam turbine generator.
In order to solve the above problems, the technical scheme adopted by the utility model is to provide an adjustable steam turbine generator shaft seal structure with a floating ring seal, wherein a shaft seal body is arranged on the periphery of a rotor, and a shaft seal structure is arranged between the shaft seal body and the rotor and comprises an adjacent air seal copper tooth structure and a floating seal ring structure; an air seal copper tooth structure is arranged on the inner side close to the generator, and a floating type sealing ring structure is arranged on the outer side close to the generator.
Preferably, the air seal copper tooth structure comprises an inner ring copper tooth plate and an outer ring copper tooth plate which are used for shaft sealing, an air cavity is arranged between the inner ring copper tooth plate and the outer ring copper tooth plate, the air cavity is connected with an air source through a rubber hose, and an adjusting valve used for adjusting air pressure is arranged on the rubber hose.
Preferably, the floating seal ring structure comprises a floating seal ring and a support spring; the periphery of the rotor is sleeved with a floating sealing ring, and a supporting spring is arranged between the floating sealing ring and the shaft seal body.
Preferably, the floating seal ring is provided as being manufactured from a composite material.
Preferably, the shaft seal body is provided to be manufactured from an aluminium alloy material.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, two sealing structures and sealing modes are adopted, so that the sealing effect of the shaft seal is improved, foreign matters are prevented from being sucked into the machine, and the cleanness of air in the machine is improved; the utility model adopts the gas seal structure, one path of high-pressure gas is compensated to the inside of the machine, and the other path of high-pressure gas is compensated to the outside of the machine. In order to adapt to the gas consumption of different units, the high-pressure gas can be adjusted and the gas quantity can be controlled; achieving better sealing effect. Meanwhile, the floating zero-clearance contact type sealing ring structure is adopted, a sealing film is formed on the surface of the rotor, and external gas and foreign matters can be effectively isolated from entering the machine.
The sealing structure of the utility model adopts two sealing modes to obtain the double-insurance effect, has good sealing effect, can prevent foreign matters from entering the machine, improves the gas purity in the machine and ensures that the insulating part in the machine is free from pollution.
Drawings
FIG. 1 is a schematic view of an adjustable shaft seal of a turbine generator with a floating ring seal according to the present invention;
FIG. 2 is a schematic view of a floating seal ring structure in an adjustable shaft seal structure of a steam turbine generator with a floating ring seal according to the present invention;
reference numerals: 1. a rubber hose; 2. adjusting a valve; 3. a copper toothed plate; 4. a rotor; 5. a floating seal ring; 6. a shaft seal body; 7. supporting the spring.
Detailed Description
In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1-2, the utility model provides an adjustable turbine generator shaft seal structure with a floating ring seal, wherein a shaft seal body 6 is arranged on the periphery of a rotor 4, a shaft seal structure is arranged between the shaft seal body 6 and the rotor 4, and the shaft seal structure comprises an adjacent air seal copper tooth structure and a floating seal ring structure; an air seal copper tooth structure is arranged on the inner side close to the generator, and a floating type sealing ring structure is arranged on the outer side close to the generator. The air seal copper tooth structure comprises an inner circle copper tooth plate 3 and an outer circle copper tooth plate 3 which are used for shaft sealing, an air cavity is arranged between the inner circle copper tooth plate 3 and the outer circle copper tooth plate 3, the air cavity is connected with an air source through a rubber hose 1, and an adjusting valve 2 used for adjusting air pressure is arranged on the rubber hose 1; the high-pressure gas can be adjusted and the gas quantity can be controlled, so that a better sealing effect is achieved. The floating type sealing ring structure comprises a floating sealing ring 5 and a supporting spring 7; a floating seal ring 5 is sleeved on the periphery of the rotor 4, and a support spring 7 is arranged between the floating seal ring 5 and the shaft seal body 6; a floating zero-clearance contact type sealing ring structure is adopted, so that gas and foreign matters outside the machine can be effectively isolated from entering the machine. The floating seal ring 5 is provided to be made of a composite material. The shaft seal body 6 is made of an aluminum alloy material.
While the utility model has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that the foregoing and other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (5)
1. The adjustable steam turbine generator shaft seal structure with the floating ring seal is characterized in that the shaft seal structure comprises an adjacent air seal copper tooth structure and a floating seal ring structure; an air seal copper tooth structure is arranged on the inner side close to the generator, and a floating type sealing ring structure is arranged on the outer side close to the generator.
2. The adjustable turbine generator shaft seal structure with the floating ring seal according to claim 1, wherein the air seal copper tooth structure comprises an inner copper tooth plate and an outer copper tooth plate for shaft seal, an air cavity is arranged between the inner copper tooth plate and the outer copper tooth plate, the air cavity is connected with an air source through a rubber hose, and an adjusting valve for adjusting air pressure is arranged on the rubber hose.
3. The adjustable turbine-generator shaft seal configuration with floating ring seal of claim 2 wherein said floating seal ring configuration comprises a floating seal ring and a support spring; the periphery of the rotor is sleeved with a floating sealing ring, and a supporting spring is arranged between the floating sealing ring and the shaft seal body.
4. The adjustable turbine-generator shaft seal configuration with floating ring seal of claim 3 wherein said floating seal ring is provided as being made of a composite material.
5. The adjustable turbine-generator shaft seal with floating ring seal of claim 4 wherein said shaft seal body is constructed of an aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122793782.7U CN216895770U (en) | 2021-11-15 | 2021-11-15 | Take sealed adjustable turbo generator shaft seal structure of floating ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122793782.7U CN216895770U (en) | 2021-11-15 | 2021-11-15 | Take sealed adjustable turbo generator shaft seal structure of floating ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216895770U true CN216895770U (en) | 2022-07-05 |
Family
ID=82200401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122793782.7U Active CN216895770U (en) | 2021-11-15 | 2021-11-15 | Take sealed adjustable turbo generator shaft seal structure of floating ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216895770U (en) |
-
2021
- 2021-11-15 CN CN202122793782.7U patent/CN216895770U/en active Active
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