CN202883354U - High-pressure plunger pump sealing structure - Google Patents
High-pressure plunger pump sealing structure Download PDFInfo
- Publication number
- CN202883354U CN202883354U CN 201220540454 CN201220540454U CN202883354U CN 202883354 U CN202883354 U CN 202883354U CN 201220540454 CN201220540454 CN 201220540454 CN 201220540454 U CN201220540454 U CN 201220540454U CN 202883354 U CN202883354 U CN 202883354U
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- CN
- China
- Prior art keywords
- plunger
- pressure
- ring
- supporting ring
- sealing
- 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 - Fee Related
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Abstract
The utility model discloses a high-pressure plunger pump sealing structure which comprises a plunger and a plunger sleeve which is sleeved outside the plunger. Three sealing rings and a supporting ring are longitudinally arranged between the plunger and the plunger sleeve at intervals, the supporting ring is positioned below the sealing rings and is positioned on an inner end face of a boss at the end of the plunger sleeve, one of the three sealing rings is made of asbestos rubber, and the plunger sleeve is made of 2Cr13 materials. According to the high-pressure plunger pump sealing structure, the three sealing rings and the supporting ring are arranged on the plunger, the supporting ring is mainly used for preventing the plunger from swinging during reciprocating motion and has an orientation or guide function, and the sealing rings have an expansion tendency under the action of medium pressure, so that the gap between the sealing ring and the plunger sleeve is reduced, a leakage path is blocked, a sealing effect is good, high-pressure fluid does not return, flow and pressure at the outlet are stable, the usage period is long, the maintenance cost is reduced, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of high-pressure plunger pump, is specifically related to the sealing configuration of the free clearance between a kind of plunger and the plunger bushing.
Background technique
But high-pressure plunger pump has the characteristic of transferring high voltage liquid medium, is applicable to the operations such as flushing, sand removal, rust cleaning, liquid conveying, liquid transmission.Yet can the plunger in guaranteeing to move work in the process of transmitting high-pressure liquid medium, and its sealing configuration is vital.Be provided with copper sheathing 3 between plunger 1 and the plunger bushing 2 in the prior art, plunger 1, plunger bushing 2 and 3 wearing and tearing of copper sheathing are on the rise, leakage rate increases gradually, along with the gap is strengthened, the part high-pressure liquid causes the suction line pressure surge from the anti-suction line that flows to of cylinder gap, cause device not run well, maintenance is frequent, has increased recondition expense, has affected continization production.
The model utility content
The utility model purpose is that a kind of good sealing effect is provided in order to overcome the deficiencies in the prior art, the high-pressure plunger pump packing structure of long service life.
For achieving the above object, the technical solution adopted in the utility model is: a kind of high-pressure plunger pump packing structure, comprise plunger and be set in the outer plunger bushing of plunger, described plunger longitudinal separation between plunger bushing is provided with three seals ring and supporting ring, described supporting ring is positioned at the below of seal ring, is on the interior edge face of plunger bushing port boss; One seal ring in the middle of the described three seals ring adopts the asbestos rubber material to make.
Preferably, described plunger bushing adopts the 2Cr13 material to make.
Preferably, be positioned in the described three seals ring intermediate seal ring up and down the two seals ring adopt Polytetrafluoroethyl-ne-ne based Composites Filled with Graphite to make.
Because the utilization of technique scheme, the utility model compared with prior art has following advantages:
A kind of high-pressure plunger pump packing structure of the utility model scheme, by being provided with the three seals ring at plunger with supporting ring, supporting ring mainly is to prevent from swinging in the plunger to-and-fro motion, have orientation or leading role, this has the tendency of expansion seal ring under the pressure medium effect, gap between seal ring and the plunger bushing is reduced, block leakage way, good sealing effect, high-pressure liquid no longer refluxes, and outlet port flow, pressure are also more stable, and life cycle is also long, reduce the cost of overhaul, improved manufacturing efficiency.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Accompanying drawing 1 is prior art high-pressure plunger pump sealed structural representation;
Accompanying drawing 2 is the structural representation of a kind of high-pressure plunger pump packing structure of the present utility model;
Wherein: 1, plunger; 2, plunger bushing; 3, copper sheathing; 4, seal ring; 5, supporting ring; 6, boss; 7, interior edge face.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Accompanying drawing 1 is prior art high-pressure plunger pump sealed structural representation.
Accompanying drawing 2 is a kind of high-pressure plunger pump packing structure described in the utility model, comprise plunger 1 and be set in plunger 1 plunger bushing 2 outward, described plunger 1 longitudinal separation between plunger bushing 2 is provided with three seals ring 4 and supporting ring 5, described supporting ring 5 is positioned at the below of seal ring 4, be in plunger bushing 2 port boss 6 interior edge face 7 on; One seal ring 4 in the middle of the described three seals ring 4 adopts the asbestos rubber material to make; Described plunger bushing 2 adopts the 2Cr13 material to make; Be positioned in the described three seals ring 4 the intermediate seal ring about in the of 4 the two seals ring adopt Polytetrafluoroethyl-ne-ne based Composites Filled with Graphite to make.
Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, all drop within the utility model rights protection scope.
Claims (3)
1. high-pressure plunger pump packing structure, comprise plunger and be set in the outer plunger bushing of plunger, it is characterized in that: described plunger longitudinal separation between plunger bushing is provided with three seals ring and supporting ring, described supporting ring is positioned at the below of seal ring, is on the interior edge face of plunger bushing port boss; One seal ring in the middle of the described three seals ring adopts the asbestos rubber material to make.
2. a kind of high-pressure plunger pump packing structure according to claim 1 is characterized in that: described plunger bushing adopts the 2Cr13 material to make.
3. a kind of high-pressure plunger pump packing structure according to claim 1 is characterized in that: be positioned in the described three seals ring intermediate seal ring up and down the two seals ring adopt Polytetrafluoroethyl-ne-ne based Composites Filled with Graphite to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540454 CN202883354U (en) | 2012-10-22 | 2012-10-22 | High-pressure plunger pump sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540454 CN202883354U (en) | 2012-10-22 | 2012-10-22 | High-pressure plunger pump sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883354U true CN202883354U (en) | 2013-04-17 |
Family
ID=48074789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220540454 Expired - Fee Related CN202883354U (en) | 2012-10-22 | 2012-10-22 | High-pressure plunger pump sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109563798A (en) * | 2016-07-08 | 2019-04-02 | 德尔福技术知识产权有限公司 | High pressure fuel pump |
-
2012
- 2012-10-22 CN CN 201220540454 patent/CN202883354U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109563798A (en) * | 2016-07-08 | 2019-04-02 | 德尔福技术知识产权有限公司 | High pressure fuel pump |
| US11713755B2 (en) | 2016-07-08 | 2023-08-01 | Delphi Technologies Ip Limited | High-pressure fuel pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20131022 |