CN2141005Y - Cavitation-proof high-pressure regulating valve - Google Patents
Cavitation-proof high-pressure regulating valve Download PDFInfo
- Publication number
- CN2141005Y CN2141005Y CN 92220633 CN92220633U CN2141005Y CN 2141005 Y CN2141005 Y CN 2141005Y CN 92220633 CN92220633 CN 92220633 CN 92220633 U CN92220633 U CN 92220633U CN 2141005 Y CN2141005 Y CN 2141005Y
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- CN
- China
- Prior art keywords
- valve
- throttle
- spool
- case
- throttling
- 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
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Details Of Valves (AREA)
- Lift Valve (AREA)
- Sliding Valves (AREA)
Abstract
The utility model relates to a high pressure regulating valve, its main technical characteristics are that set up a throttle uide bushing outside the case, the throttle uide bushing is located and processes on the wall of fluid passage within range and has the orifice, makes high-pressure fluid carry out a throttle step-down earlier before getting into the vice of the throttle that case and disk seat constitute, reduces the vice pressure drop of going up of case disk seat throttle to improve the cavitation destruction of liquid medium to case and disk seat and erode destruction, the life-span of extension valve. Compared with the prior high-pressure regulating valve, the service life of the utility model can be prolonged by more than one time.
Description
The utility model relates to the septum valve that regulated fluid pressure is paid in a kind of throttling that utilizes the spool upper valve base to form.
Septum valve is the important device in the Chemical Manufacture, also is the key device of automation control, and its working environment generally is, is the high pressure of 20～32MPa before the valve, is the low pressure of 1～2MPa behind the valve, and the pressure drop on the valve is up to 30MPa.Widely used septum valve in the present Chemical Manufacture, all be that the throttling action of utilizing flow area between spool and the valve seat to dwindle then sudden enlargement more suddenly reduces hydrodynamic pressure, the high pressure drop on the whole valve all acts on the throttling that spool and valve seat constitute and pays.An outstanding problem of existing septum valve existence in service is the effect of flowing medium in High Pressure Difference, can pay the throttling of spool and valve seat formation and produce serious cavitation damage and erosion damage, and be the main cause that the high-pressure regulation defective valve is scrapped.This cavitation just can be destroyed spool, valve seat with washing away to lack then in several days, and defective valve is scrapped.The weak point in working life of septum valve is not well solved always.This also is that people thirst for the problem that solves for a long time.
The purpose of this utility model is to avoid the deficiency of prior art and septum valve that a kind of long service life, uncomplicated its structure are provided.
Invention thought of the present utility model is, enters before throttling that spool and valve seat constitute pays at high-pressure fluid medium, carries out a throttling step-down earlier, reduces the pressure drop that throttling is paid.For this reason, inventor of the present utility model is provided with an orifice sleeve dexterously outside spool, realized inventor's original intention satisfactorily.
The purpose of this utility model is achieved by taking following technical measures:
Septum valve is by valve body, and the valve seat, spool and the valve rod that are arranged in the valve body constitute, spool and valve seat configuration, the aperture of valve rod regulating spool, a throttling guide sleeve is set outside spool, one end face of throttling guide sleeve and the configuration of valve seat end face, the other end is positioned on the valve body, is processed with throttle orifice on the wall of cover.
In order to realize the purpose of this utility model better, the utility model also can be taked following technical measures:
Be positioned at the throttling guide sleeve on the wall of inlet fluid channel range and be processed with throttle orifice.
Throttle hole area on the throttling guide sleeve is 1.10～1.35 times of orifice size between spool and the valve seat.
The utility model compared with the prior art, Tu Chu advantage is to become a throttling step-down to be the second throttle step-down the most, the pressure drop that the throttling of spool valve seat is paid greatly reduces, cavitation damage and erosion damage that flowing medium is paid throttling greatly alleviate, so life-span of having improved septum valve greatly, than original modulating valve, the life-span can prolong more than one times.In addition, the utility model has structurally also just carried out the guide sleeve of original modulating valve to improve design, makes it not only can be to spool guiding but also can be to the high-pressure fluid medium throttling, and therefore, the utility model does not structurally a bit have complicated than prior art.
Accompanying drawing 1 is a structural representation of the present utility model.
Provide an embodiment of the present utility model below in conjunction with the explanation of accompanying drawing drawing.
In valve body (1), be provided with valve seat (3), spool (2) and valve rod (4), spool and valve seat configuration, valve rod one end is connected with the spool configuration, and the other end stretches out outside the valve body, and spool is regulated by valve rod the aperture of valve seat.Throttling guide sleeve (5) is arranged on outside the spool, one end and the configuration of valve seat end face, the other end is positioned on the valve body, and the throttling guide sleeve is positioned on the wall of fluid passage scope and is processed with throttle orifice, and the gross area of throttle orifice is 1.30 times of orifice size between spool and the valve seat on the throttling guide sleeve.Fluid inlet channel on the valve body (6) intersects vertically with outlet passage (7).
Claims (3)
1, a kind of septum valve is by valve body (1) and be arranged on valve seat (3), spool (2) and valve rod (4) formation in the valve body.Spool and valve seat configuration, the aperture of valve rod regulating spool is characterized in that being provided with a throttling guide sleeve (5) outside spool, an end face of throttling guide sleeve and the configuration of valve seat end face, the other end is positioned on the valve body, is processed with throttle orifice on the wall of cover.
2, high pressure throttle valve according to claim 1 is characterized in that being processed with throttle orifice on the throttling guide sleeve is positioned at the wall of inlet fluid channel range.
3, high pressure throttle valve according to claim 1 and 2, the area that it is characterized in that throttle orifice on the throttling guide sleeve are 1.10～1.35 times of orifice size between spool and the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220633 CN2141005Y (en) | 1992-11-05 | 1992-11-05 | Cavitation-proof high-pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220633 CN2141005Y (en) | 1992-11-05 | 1992-11-05 | Cavitation-proof high-pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2141005Y true CN2141005Y (en) | 1993-08-25 |
Family
ID=33767636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92220633 Expired - Fee Related CN2141005Y (en) | 1992-11-05 | 1992-11-05 | Cavitation-proof high-pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2141005Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865297A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Anti-cavitation erosion adjusting valve capable of cutting |
| CN101663526B (en) * | 2007-08-01 | 2012-08-22 | 株式会社巴技术研究所 | Cavitation preventive high differential pressure control valve |
| CN102720463A (en) * | 2012-07-03 | 2012-10-10 | 西南石油大学 | Novel throttling and depressurizing device |
-
1992
- 1992-11-05 CN CN 92220633 patent/CN2141005Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663526B (en) * | 2007-08-01 | 2012-08-22 | 株式会社巴技术研究所 | Cavitation preventive high differential pressure control valve |
| CN101865297A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Anti-cavitation erosion adjusting valve capable of cutting |
| CN102720463A (en) * | 2012-07-03 | 2012-10-10 | 西南石油大学 | Novel throttling and depressurizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |