CN205350414U - Case subassembly suitable for high pressure ball valve - Google Patents
Case subassembly suitable for high pressure ball valve Download PDFInfo
- Publication number
- CN205350414U CN205350414U CN201620019263.1U CN201620019263U CN205350414U CN 205350414 U CN205350414 U CN 205350414U CN 201620019263 U CN201620019263 U CN 201620019263U CN 205350414 U CN205350414 U CN 205350414U
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- Prior art keywords
- groove
- case
- spool
- valve
- ball valve
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Abstract
The utility model discloses a case subassembly suitable for high pressure ball valve, including case and valve rod, the case be spherical structure, its inside flow channel hole who link up the case that sets up, the valve rod install on the valve body, the case on set up a draw -in groove, the lower extreme of valve rod be equipped with the boss, the cooperation of boss and draw -in groove be connected, the terminal surface of both ends for being parallel to each other of case, set up on one of them terminal surface with the earial drainage groove of flow channel hole one end intercommunication, the earial drainage inslot inlay on the case, the lower extreme of valve rod be equipped with the bulge loop, the bulge loop on install footstep bearing. The utility model relates to a case subassembly suitable for high pressure ball valve, it is rational in infrastructure, add earial drainage groove and tungsten carbide carbide coating for the case is just being opened and is being about to close in the twinkling of an eye, and the high -pressure medium flow has improved more than 3 times than traditional case structure, has improved the high pressure resistant, stand wear and tear of case and sealing performance, has prolonged the life of case.
Description
[technical field]
This utility model relates to the technical field of high-pressure ball valve, particularly to a kind of core assembly suitable in high-pressure ball valve.
[background technology]
High-pressure ball valve is a kind of common valve, and high-pressure ball valve is mainly used to make the flow direction cutting off, distribute and changing medium in pipeline, and it has only to the operation with 90-degree rotation and only small rotating torque just can be closed tight.Ball valve optimum switchs, stop valve uses, high-pressure ball valve be mainly characterized by compact conformation own, seal reliable, simple in construction, be widely used in every profession and trade.
But, it is generally used in high-pressure medium pipeline yet with high-pressure ball valve, spool is when just opening and namely will be fully off, runner mouth between valve core inside passage and medium channel is minimum, now high-pressure medium can produce Choking phenomenon at this minimum runner mouth place, medium is sprayed, thus the ball mouth place being easily caused spool produces cavitation erosion, erosive wear, thus reducing the serviceability of valve, shorten the service life of valve, in order to extend the service life of valve, improve invention serviceability in use, it is necessary that proposition is a kind of and can effectively slow down medium injection when spool has just been opened and has been about to close, weaken spool face cavitation erosion, improve the core assembly in spool service life.
[utility model content]
The purpose of this utility model is in that to overcome above-mentioned the deficiencies in the prior art, a kind of core assembly suitable in high-pressure ball valve is provided, it aims to solve the problem that the runner mouth of spool in prior art is easily generated Choking phenomenon, spool is washed away in the high-pressure medium injection when just opening and being about to close of the spool of high-pressure ball valve, causes that spool cavitation erosion is serious, the technical problem of erosive wear.
For achieving the above object, the utility model proposes a kind of core assembly suitable in high-pressure ball valve, including spool and valve rod, described spool structure spherical in shape, the runner hole of through spool is offered inside it, described valve rod is arranged on valve body, described spool is offered a draw-in groove, the lower end of described valve rod is provided with boss, described boss and draw-in groove are connected, the two ends of described spool are the end face being parallel to each other, one of them end face offers the dredging flow groove connected with one end, runner hole, described dredging flow groove is embedded on spool, described dredging flow groove is positioned at the side of the constituted plane of axis of the axis by runner hole and valve rod, the lower end of described valve rod is provided with bulge loop, described bulge loop is provided with thrust bearing, described thrust bearing is connected with valve body.
As preferably, the axis in the center line of described draw-in groove and runner hole is mutually perpendicular to.
As preferably, described end face is symmetrical about draw-in groove, described end face all axially vertical with runner hole.
As preferably, the surface of described spool is provided with one layer of tungsten carbide hard alloy coating.
As preferably, described dredging flow groove is arc dredging flow groove and the one of which of W shape dredging flow groove.
As preferably, described W shape dredging flow groove is made up of the first arcuate groove, the second arcuate groove and convex globoidal, and described convex globoidal two ends are connected formation W shape respectively with the first arcuate groove, the second arcuate groove.
The beneficial effects of the utility model: compared with prior art, a kind of core assembly suitable in high-pressure ball valve that this utility model provides, rational in infrastructure, a side end face of spool offers the dredging flow groove in connection runner hole, dredging flow groove is W shape structure or arcuate structure, improve in conventional valve cored structure, the situation that runner gap between runner hole and medium channel is only small, setting up of dredging flow groove, spool is made in just unlatching and to be about to the moment closed, the valve core structure that high-pressure medium flow-rate ratio is traditional improves more than 3 times, slow down the high-pressure medium high pressure to the two end faces of spool to wash away, weaken the high-pressure medium cavitation erosion to spool face, improve the high voltage performance of spool, substantially prolongs the service life of spool, and spool face scribbles tungsten carbide hard alloy coating, not only increase the anti-wear performance of spool, improve the sealing property of valve pocket simultaneously, improve the service life of whole ball valve further.
Feature of the present utility model and advantage will be described in detail in conjunction with accompanying drawing by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is the structural representation of this utility model embodiment two；
Fig. 3 is the structure for amplifying schematic diagram in A portion in Fig. 2.
In figure: 1-spool, 10-end face, 2-valve rod, 20-boss, 21-bulge loop, 3-runner hole, 4-draw-in groove, 5-dredging flow groove, 50-the first arcuate groove, 51-the second arcuate groove, 52-convex globoidal, 6-thrust bearing, 7-valve body.
[detailed description of the invention]
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by accompanying drawing and embodiment, this utility model being further elaborated.However, it should be understood that specific embodiment described herein is only in order to explain this utility model, it is not limited to scope of the present utility model.Additionally, in the following description, eliminate the description to known features and technology, to avoid unnecessarily obscuring concept of the present utility model.
This utility model provides a kind of core assembly suitable in high-pressure ball valve, including spool 1 and valve rod 2, described spool 1 structure spherical in shape, the runner hole 3 of through spool 1 is offered inside it, described valve rod 2 is arranged on valve body 7, described spool 1 is offered a draw-in groove 4, the lower end of described valve rod 2 is provided with boss 20, described boss 20 is connected with draw-in groove 4, the two ends of described spool 1 are the end face 10 being parallel to each other, one of them end face 10 offers the dredging flow groove 5 connected with one end, runner hole 3, described dredging flow groove 5 is embedded on spool 1, described dredging flow groove 5 is positioned at the side of the constituted plane of axis of the axis by runner hole 3 and valve rod 2, the lower end of described valve rod 2 is provided with bulge loop 21, described bulge loop 21 is provided with thrust bearing 6, described thrust bearing 6 is connected with valve body 7.
Wherein, the axis in the center line of draw-in groove 4 and runner hole 3 is mutually perpendicular to, and end face 10 is symmetrical about draw-in groove 4, described end face 10 all axially vertical with runner hole 3.
Further, the surface of spool 1 is provided with one layer of tungsten carbide hard alloy coating, not only increase the anti-wear performance of spool, improve the sealing property of valve pocket simultaneously, when valve opening or the moment of closedown, spool 1 can seriously be washed away by high-pressure medium, traditional spool face can produce serious erosion condition, cause that sealing property declines, and the spool 1 scribbling tungsten carbide hard alloy coating has higher high pressure resistant and anti-wear performance, the fast flush of high-pressure medium is more weak to the erosion on spool 1 surface, after long-time use, the valve of the spool 1 scribbling tungsten carbide hard alloy coating still has preferably sealing.
Further, dredging flow groove 5 is arc dredging flow groove and the one of which of W shape dredging flow groove.
Consulting Fig. 1, the dredging flow groove 5 on spool 1 is arc dredging flow groove.
During a kind of core assembly and the valve body assembling that this utility model embodiment one provides, with one end of dredging flow groove 5 towards the media inlet end on valve body 7；Dredging flow groove 5 can also be all set at the two ends of spool 1, so be fitted without direction requirement when assembling, two-way circulating of medium can also be carried out simultaneously.
Consulting Fig. 1 and Fig. 3, the dredging flow groove 5 on spool 1 is W shape dredging flow groove, and W shape dredging flow groove is made up of first arcuate groove the 50, second arcuate groove 51 and convex globoidal 52, and described convex globoidal 52 two ends are connected formation W shape respectively with first arcuate groove the 50, second arcuate groove 51.
W shape dredging flow groove in this utility model embodiment two is little to the intensity effect at edge, runner hole 3, adds and does not result in stress concentration man-hour, and can improve rate-of flow to greatest extent when spool 1 has just been opened and has been about to close.
This utility model embodiment one and embodiment two, improve spool and in just unlatching and be about to the moment closed, the present situation that runner gap between runner hole and medium channel is only small, high-pressure medium flow-rate ratio traditional structure is made to improve more than three times by dredging flow groove 5, wash away thus slowing down the medium injection to the sealing surface place at spool 1 two ends, weaken spool 1 surface erosion, extend the service life of valve.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent replacement or improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (6)
1. the core assembly being applicable to high-pressure ball valve, including spool (1) and valve rod (2), described spool (1) structure spherical in shape, the runner hole (3) of through spool (1) is offered inside it, described valve rod (2) is arranged on valve body (7), described spool (1) offers a draw-in groove (4), the lower end of described valve rod (2) is provided with boss (20), described boss (20) and draw-in groove (4) are connected, it is characterized in that: the two ends of described spool (1) are the end face (10) being parallel to each other, one of them end face (10) offers the dredging flow groove (5) connected with runner hole (3) one end, described dredging flow groove (5) is embedded on spool (1), described dredging flow groove (5) is positioned at the side of the constituted plane of axis of the axis by runner hole (3) and valve rod (2), the lower end of described valve rod (2) is provided with bulge loop (21), described bulge loop (21) is provided with thrust bearing (6), described thrust bearing (6) is connected with valve body (7).
2. a kind of core assembly suitable in high-pressure ball valve as claimed in claim 1, it is characterised in that: the center line of described draw-in groove (4) and the axis in runner hole (3) are mutually perpendicular to.
3. a kind of core assembly suitable in high-pressure ball valve as claimed in claim 1, it is characterized in that: described end face (10) is symmetrical about draw-in groove (4), described end face (10) all axially vertical with runner hole (3).
4. a kind of core assembly suitable in high-pressure ball valve as claimed in claim 1, it is characterised in that: the surface of described spool (1) is provided with one layer of tungsten carbide hard alloy coating.
5. a kind of core assembly suitable in high-pressure ball valve as claimed in claim 1, it is characterised in that: the one of which that described dredging flow groove (5) is arc dredging flow groove and W shape dredging flow groove.
6. a kind of core assembly suitable in high-pressure ball valve as claimed in claim 5, it is characterized in that: described W shape dredging flow groove is made up of the first arcuate groove (50), the second arcuate groove (51) and convex globoidal (52), described convex globoidal (52) two ends are connected formation W shape respectively with the first arcuate groove (50), the second arcuate groove (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620019263.1U CN205350414U (en) | 2016-01-08 | 2016-01-08 | Case subassembly suitable for high pressure ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620019263.1U CN205350414U (en) | 2016-01-08 | 2016-01-08 | Case subassembly suitable for high pressure ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350414U true CN205350414U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620019263.1U Expired - Fee Related CN205350414U (en) | 2016-01-08 | 2016-01-08 | Case subassembly suitable for high pressure ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274046A (en) * | 2019-07-04 | 2019-09-24 | 浙江石化阀门有限公司 | A kind of wear-resisting sphere and its processing technology |
| CN113653824A (en) * | 2021-08-13 | 2021-11-16 | 哈电集团哈尔滨电站阀门有限公司 | Scouring-resistant ball valve |
-
2016
- 2016-01-08 CN CN201620019263.1U patent/CN205350414U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274046A (en) * | 2019-07-04 | 2019-09-24 | 浙江石化阀门有限公司 | A kind of wear-resisting sphere and its processing technology |
| CN110274046B (en) * | 2019-07-04 | 2020-05-05 | 浙江石化阀门有限公司 | Wear-resistant ball and processing technology thereof |
| CN113653824A (en) * | 2021-08-13 | 2021-11-16 | 哈电集团哈尔滨电站阀门有限公司 | Scouring-resistant ball valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20190108 |