CN203809347U - Mechanical sealing device of petrochemical pump - Google Patents
Mechanical sealing device of petrochemical pump Download PDFInfo
- Publication number
- CN203809347U CN203809347U CN201420165654.5U CN201420165654U CN203809347U CN 203809347 U CN203809347 U CN 203809347U CN 201420165654 U CN201420165654 U CN 201420165654U CN 203809347 U CN203809347 U CN 203809347U
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- CN
- China
- Prior art keywords
- ring
- atmosphere
- rotating ring
- media
- end rotating
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- Expired - Fee Related
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- Mechanical Sealing (AREA)
Abstract
The utility model relates to a mechanical sealing device of a petrochemical pump. The device comprises two groups of moving rings and static rings which are mounted on a shaft sleeve in a front-and-back manner, wherein a spring for compensation is arranged between a medium-end moving ring and an atmosphere-end moving ring; one end of the spring is contacted with the medium-end moving ring, and the other end is contacted with the atmosphere-end moving ring; a gland, a sealing seat, a medium-end static ring, the medium-end moving ring, an atmosphere-end static ring, the atmosphere-end moving ring and the shaft sleeve define a cavity for circulation of washing water; a water inlet and a water outlet which are communicated with the cavity are formed in the sealing seat. According to the mechanical sealing device adopting the structure, the two moving rings are compensated through one spring, so that the inner structure of the mechanical sealing device is simplified, the inner cavity is enlarged while the outer size is unchanged, the cavity can accommodate more washing water, poisonous media can be better diluted, and harm to human bodies and pollution to the environment can be reduced.
Description
Technical field
The utility model relates to a kind of mechanical seal device, especially a kind of mechanical seal device that applies to petrochemical industry pump.
Background technique
Due to the development of petroleum chemical industry process engineering, also more and more higher to the duty parameter of the mechanical seal requirement using, also require its working life to reach 3 years.The use of mechanical seal need to be stablized, smoothness, and the maintenance of planned interval, prevents that the interval maintenance frequency of fault from will reduce as far as possible during this time.The various media of petroleum chemical industry are all under normal circumstances under high temperature and high pressure environment, itself contain violent pungent taste and toxicity, and positive confinement is not all accomplished in which kind of sealing, all can have leakage to a certain degree, thereby cause the injury to human body.
Model utility content
For the technical problem of above-mentioned existence, the utility model provides a kind of petrochemical industry discharge pump mechanical seal device, utilize two rotating rings of a spring-compensating, simplify its internal structure, make to increase for the cavity of sparge water circulation, the sparge water simultaneously holding is more, and the poisonous medium that effectively dilution is revealed is also taken away.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of petrochemical industry discharge pump mechanical seal device, before and after comprising two groups, be installed on rotating ring and the stationary ring on axle sleeve, be divided into media end stationary ring, media end rotating ring, atmosphere end stationary ring, atmosphere end rotating ring; Sealing seat, gland are fixed on pump cover successively; On gland, be provided with atmosphere end stationary ring is installed on media end stationary ring, sealing seat; Media end rotating ring and atmosphere end rotating ring are arranged on axle sleeve; Between media end rotating ring and atmosphere end rotating ring, be provided with the spring for compensating; Described spring one end contacts with media end rotating ring, and the other end contacts with atmosphere end rotating ring; Described gland, sealing seat, media end stationary ring, media end rotating ring, atmosphere end stationary ring, atmosphere end rotating ring and axle sleeve surround the cavity for sparge water circulation; On described sealing seat, have the water intake and the water outlet that are communicated with cavity.
Preferred as one, described media end stationary ring, media end rotating ring, atmosphere end stationary ring, atmosphere end rotating ring are made by cobalt base hard alloy.It has high hardness, high thermal conductivity coefficient, low-expansion coefficient, the characteristic such as corrosion-resistant.Be applied to chemical industry, can play the abrasive effect that effectively weakens object particle thing, the characteristic that the heat-conducting property that it is good and thermal distortion are little, high-temperature condition that again can fine adaptation medium.
Usefulness of the present utility model is: the mechanical seal device with said structure, be two rotating ring compensation with crossing a spring, simplify machine envelope internal structure, in the situation of constancy of volume outside, increase internal cavities, can hold more sparge water, better dilute poisonous medium, effectively prevent from causing the injury to human body and the pollution to environment owing to leaking (agreement).
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 axle sleeve, 2 atmosphere end stationary rings, 3 atmosphere end rotating rings, 4 sealing seats, 5 glands, 6 springs, 7 cavitys, 8 media end rotating rings, 9 media end stationary rings, 10 water intakes, 11 water outlets, 12 main shafts, 13 pump covers.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1:
The utility model is installed on rotating ring and the stationary ring on axle sleeve before and after comprising two groups, is divided into media end stationary ring 9, media end rotating ring 8, atmosphere end stationary ring 2, atmosphere end rotating ring 3; Sealing seat 4, gland 5 utilize and are bolted on pump cover 13 successively; On gland 5, be provided with on media end stationary ring 9, sealing seat 4 atmosphere end stationary ring 2 is installed; Media end rotating ring 8 and atmosphere end rotating ring 3 are arranged on axle sleeve 1, rotate with axle sleeve 1; Between media end rotating ring 8 and atmosphere end rotating ring 3, be provided with the spring 6 for compensating; Described spring 6 one end contact with media end rotating ring 3, and the other end contacts with atmosphere end rotating ring 8; Described gland 5, sealing seat 4, media end stationary ring 9, media end rotating ring 8, atmosphere end stationary ring 2, atmosphere end rotating ring 3 and axle sleeve 1 surround the cavity 7 for sparge water circulation; On described sealing seat 4, have the water intake 10 and the water outlet 11 that are communicated with cavity 7.Described media end stationary ring 9, media end rotating ring 8, atmosphere end stationary ring 2, atmosphere end rotating ring 3 are made by cobalt base hard alloy.Described spring 6 is preferably the sparse big spring of the number of turns, and its gap is large, be difficult for stop up, sparge water be also easy to by between impurity take away, ensure spring can normally use for a long time.
When work, sparge water enters the close cavity of mechanical seal 7 from water intake 10, flows along arrow, takes away the frictional heat of a small amount of medium and the ring end face of normal leakage.Ensure that mechanical seal, rationally moving under environment, increases the service life.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. a petrochemical industry discharge pump mechanical seal device, comprises that two groups of front and back are installed on rotating ring and the stationary ring on axle sleeve, are divided into media end stationary ring, media end rotating ring, atmosphere end stationary ring, atmosphere end rotating ring; It is characterized in that: sealing seat, gland are fixed on pump cover successively; On gland, be provided with atmosphere end stationary ring is installed on media end stationary ring, sealing seat; Media end rotating ring and atmosphere end rotating ring are arranged on axle sleeve; Between media end rotating ring and atmosphere end rotating ring, be provided with the spring for compensating; Described spring one end contacts with media end rotating ring, and the other end contacts with atmosphere end rotating ring; Described gland, sealing seat, media end stationary ring, media end rotating ring, atmosphere end stationary ring, atmosphere end rotating ring and axle sleeve surround the cavity for sparge water circulation; On described sealing seat, have the water intake and the water outlet that are communicated with cavity.
2. a kind of petrochemical industry discharge pump mechanical seal device according to claim 1, is characterized in that: described media end stationary ring, media end rotating ring, atmosphere end stationary ring, atmosphere end rotating ring are made by cobalt base hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165654.5U CN203809347U (en) | 2014-04-08 | 2014-04-08 | Mechanical sealing device of petrochemical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165654.5U CN203809347U (en) | 2014-04-08 | 2014-04-08 | Mechanical sealing device of petrochemical pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809347U true CN203809347U (en) | 2014-09-03 |
Family
ID=51448104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420165654.5U Expired - Fee Related CN203809347U (en) | 2014-04-08 | 2014-04-08 | Mechanical sealing device of petrochemical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761156A (en) * | 2016-08-22 | 2018-03-06 | 盛美半导体设备（上海）有限公司 | Electroplating bath |
-
2014
- 2014-04-08 CN CN201420165654.5U patent/CN203809347U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761156A (en) * | 2016-08-22 | 2018-03-06 | 盛美半导体设备（上海）有限公司 | Electroplating bath |
| CN107761156B (en) * | 2016-08-22 | 2021-05-14 | 盛美半导体设备(上海)股份有限公司 | Electroplating bath |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20150408 |
|
| EXPY | Termination of patent right or utility model |