CN203214374U - Balancing sleeve structure of petroleum chemical process pump - Google Patents
Balancing sleeve structure of petroleum chemical process pump Download PDFInfo
- Publication number
- CN203214374U CN203214374U CN 201320214498 CN201320214498U CN203214374U CN 203214374 U CN203214374 U CN 203214374U CN 201320214498 CN201320214498 CN 201320214498 CN 201320214498 U CN201320214498 U CN 201320214498U CN 203214374 U CN203214374 U CN 203214374U
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- CN
- China
- Prior art keywords
- snap ring
- distance bush
- bush
- pump
- half snap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a balancing sleeve structure of a petroleum chemical process pump. The balancing sleeve structure comprises a split-half snap ring, a distance bush and a snap ring sleeve. The split-half snap ring is arranged in a circular groove in a pump shaft. The distance bush is sleeved on the pump shaft. One end of the distance bush is in butt joint with the split-half snap ring, while the other end thereof is in butt joint with an impeller. The snap ring sleeve is sleeved outside the split-half snap ring, and a spiral groove is formed in the distance bush. According to the arrangement that the spiral groove is adopted in the distance bush, a throat bush adopts a form that a plurality of pressure relief holes are connected with a balancing tube, and the distance bush is thrust by the split-half snap ring, axial force generated from the impeller is transmitted to the pump shaft, and pressure of a seal cavity at a non-driving end is further reduced.
Description
Technical field
The utility model belongs to the petrochemical process pump field, is specifically related to a kind of balance set structure of petrochemical process pump.
Background technique
Along with the rapid growth in domestic construction, oil, petrochemical industry, environmental protection market, Chinese pump has already welcome powerful life, we can say that the market space of Chinese sustainable growth already brings spring for Chinese pump.With regard to only at regard to the petroleum chemical industry, in the working ability of the oil refinery list covering device of China before 2003 generally about 5,000,000 tons/year, but along with China's petrochemical industry develops rapidly, it is main petroleum refining device that the oil refining apparatus of China has developed into 1,000 ten thousand tons of/year scales, even 2,000 ten thousand tons/year oversized device.In addition China just will build a collection of large-scale oil refining more than 1,000 ten thousand tons/year during " 12 " successively, large-scale ethene more than 1,000,000 tons/year, mega project such as large-scale PTA more than 1,000,000 tons/year, the construction of these mega projects, will drive the maximization of the device of downstream project, and the maximization of device, the maximization of its corresponding corollary equipment of inevitable requirement.With regard to pump, just need bigger flow, higher lift, bigger air horsepower, multistage radially subdivision petrochemical process pump (WD type pump) is exactly to succeed in developing under this demand.
The model utility content
The utility model provides a kind of balance set structure of petrochemical process pump at above-mentioned the deficiencies in the prior art; The balance set structure of this petrochemical process pump can effectively reduce anti-drive end Seal cage pressure.
The utility model is achieved by the following technical solution:
A kind of balance set structure of petrochemical process pump is characterized in that, comprises branch half snap ring, distance bush and snap ring cover, described branch half snap ring is arranged in the annular groove on the pump shaft, distance bush is sleeved on the pump shaft, an end of distance bush and branch half snap ring butt, the other end and impeller butt; The snap ring cover is sleeved on the outside of branch half snap ring; Described distance bush is provided with spiral chute.
Further setting of the present utility model is, is provided with throat's lining between described distance bush and the pump cover, and described throat lining is provided with a plurality of relief holes that are connected with balance tube.
Distance bush in the balance set structure of petrochemical process pump described in the utility model has adopted the spiral chute design, and throat's axle sleeve has adopted the porous pressure release to connect the form of balance tube, and distance bush adopts and divides half snap ring thrust, make axial force transmission that impeller produces to pump shaft, can further reduce the pressure of anti-drive end Seal cage.
Description of drawings
Fig. 1 is the structural drawing of the balance set structure of petrochemical process pump described in the utility model.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model provides a kind of balance set structure of petrochemical process pump, comprise branch half snap ring 1, distance bush 2 and snap ring cover 3, described branch half snap ring 1 is arranged in the annular groove on the pump shaft 4, distance bush 2 is sleeved on the pump shaft 4, one end of distance bush 2 partly blocks 1 ring butt, the other end and impeller butt with branch; Snap ring cover 3 is sleeved on the outside of branch half snap ring 1; Described distance bush 2 is provided with spiral chute 5.Be provided with throat's lining 7 between described distance bush 2 and the pump cover 6, described throat lining 7 is provided with a plurality of relief holes that are connected with balance tube.
The above is preferred embodiment of the present utility model, and all equivalent variations of doing according to the utility model claim all should belong to protection domain of the present utility model.
Claims (2)
1. the balance set structure of a petrochemical process pump is characterized in that, comprises branch half snap ring, distance bush and snap ring cover, described branch half snap ring is arranged in the annular groove on the pump shaft, distance bush is sleeved on the pump shaft, an end of distance bush and branch half snap ring butt, the other end and impeller butt; The snap ring cover is sleeved on the outside of branch half snap ring; Described distance bush is provided with spiral chute.
2. the balance set structure of petrochemical process pump according to claim 1 is characterized in that, is provided with throat's lining between described distance bush and the pump cover, and described throat lining is provided with a plurality of relief holes that are connected with balance tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214498 CN203214374U (en) | 2013-04-24 | 2013-04-24 | Balancing sleeve structure of petroleum chemical process pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214498 CN203214374U (en) | 2013-04-24 | 2013-04-24 | Balancing sleeve structure of petroleum chemical process pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214374U true CN203214374U (en) | 2013-09-25 |
Family
ID=49203918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320214498 Expired - Lifetime CN203214374U (en) | 2013-04-24 | 2013-04-24 | Balancing sleeve structure of petroleum chemical process pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907316A (en) * | 2015-12-23 | 2017-06-30 | 上海连成（集团）有限公司 | A kind of pump |
-
2013
- 2013-04-24 CN CN 201320214498 patent/CN203214374U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907316A (en) * | 2015-12-23 | 2017-06-30 | 上海连成（集团）有限公司 | A kind of pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
|
| CX01 | Expiry of patent term |