CN203374904U - Pressure regulating valve - Google Patents
Pressure regulating valve Download PDFInfo
- Publication number
- CN203374904U CN203374904U CN201320431258.8U CN201320431258U CN203374904U CN 203374904 U CN203374904 U CN 203374904U CN 201320431258 U CN201320431258 U CN 201320431258U CN 203374904 U CN203374904 U CN 203374904U
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- Prior art keywords
- valve
- pressure regulating
- spool
- pressure
- cylinder
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- Expired - Fee Related
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Abstract
The utility model relates to a pressure regulating valve. The pressure regulating valve comprises a valve body, a valve seat, a valve plug, a valve rod, a bonnet, a sealing part and an installing part, wherein a sealing face which is matched with the valve seat is arranged on the lower end face of the valve plug. The pressure regulating valve is mainly characterized in that the valve plug is composed of a cylindrical structure arranged on the upper portion and a conical structure arranged on the lower portion, a regulating sleeve is installed between the upper end face of the valve seat and the lower end face of the bonnet, an inner hole of the regulating sleeve and the outer wall of a cylinder of the valve plug are in dynamic seal fit, meshed through holes are formed in the side wall of the regulating sleeve arranged on the outer side of the lower portion of the cylinder of the valve plug when the pressure regulating valve is in a closed state, a pressure regulating cavity is formed between the upper end face of the cylinder of the valve plug and the bonnet, and the pressure regulating cavity is communicated with an outlet channel of the valve body. Outlet medium pressure is used for having control over the opening degree of the valve plug through the pressure regulating cavity, the structure is simple, the pressure regulating precision is high, and the pressure regulating valve is applicable to high-pressure working conditions of the fields such as the electric power field and the petrochemical field.
Description
Technical field
The utility model belongs to valve field, specifically about a kind of pressure regulator valve.The utility model is applicable to the pressure regulator valve of the field high pressure operating modes such as electric power, petrochemical industry.
Background technique
Pressure regulator valve generally is comprised of valve body, valve gap, valve seat, valve rod, spool and pressure adjusting spring, utilizes the position of the variation automatic regulating valve core of valve outlet pressure medium, reaches stable outlet pressure.Its major defect is that pressure adjusting spring is in medium the impact that is subject to corrosion and temperature variation, and elastic force changes, and affect the pressure degree of regulation, and structure is more complicated.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, and a kind of simple in structure, pressure regulator valve that the pressure regulation precision is high is provided.
The technical solution of the utility model comprises valve body, valve seat, spool, valve rod, valve gap, Sealing and assembling set, the spool lower end surface has the sealing surface cooperatively interacted with valve seat, mainly that spool is comprised of the round column structure on top and the conical structure of bottom, one adjustment sleeve is installed between valve seat upper-end surface and valve gap lower end surface, this adjustment sleeve endoporus coordinates with the motive sealing of spool cylindrical outer wall, be shaped with netted open-end hole on the adjustment sleeve sidewall of valve closes state lower valve core cylinder lower outside, form pressure regulating cavity between spool cylinder upper-end surface and valve gap, this pressure regulating cavity and valve outlet channel connection.
In above technological scheme, the sidewall that adjustment sleeve is communicated with outlet passage is comprised of the double-layered cylinder net.
In above technological scheme, valve body, valve gap adopt forged steel pieces.
In above technological scheme, in the valve outlet passage, be provided with filter screen.
The utility model has the advantages that and utilize the outlet pressure medium to control the aperture of spool by pressure regulating cavity, simple in structure, the pressure regulation precision is high.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Pressure regulator valve as shown in Figure 1, comprise valve body 1, valve seat 2, spool 3, valve rod 4, valve gap 5, Sealing and assembling set, and spool 3 lower end surfaces have the sealing surface cooperatively interacted with valve seat 2, and spool 3 adopts hard alloy overlay welding to form with the sealing surface of valve seat 2.Spool 3 is comprised of the round column structure on top and the conical structure of bottom, one adjustment sleeve 6 is installed between valve seat 2 upper-end surfaces and valve gap 5 lower end surfaces, these adjustment sleeve 6 endoporus coordinate with spool 3 cylindrical outer wall motive sealings, be shaped with netted open-end hole on adjustment sleeve 6 sidewalls of valve closes state lower valve core 3 cylinder lower outsides, when spool 3 and valve seat 2 are sealed and matched state, the netted open-end hole of adjustment sleeve 6 is sealed in the cylndrical surface of spool 3, when spool 3 is opened, the netted open-end hole of adjustment sleeve 6 leaves the cylndrical surface of spool 3 gradually, medium flows into valve body 1 outlet by the netted open-end hole of adjustment sleeve 6.Form pressure regulating cavity 7 between spool 3 cylinder upper-end surfaces and valve gap 5, this pressure regulating cavity 7 is communicated with valve body 1 outlet passage, and valve body 1 outlet pressure medium is incorporated in pressure regulating cavity 7.
The sidewall that adjustment sleeve 6 is communicated with outlet passage is comprised of the double-layered cylinder net, reduces the impact force of medium to valve body 1 outlet passage.
Valve body 1, valve gap 5 adopt forged steel pieces, improve withstand voltage properties.Be provided with filter screen 8 in valve body 1 outlet passage.
Claims (4)
1. a pressure regulator valve, comprise valve body (1), valve seat (2), spool (3), valve rod (4), valve gap (5), Sealing and assembling set, spool (3) lower end surface has the sealing surface cooperatively interacted with valve seat (2), it is characterized in that spool (3) is comprised of the round column structure on top and the conical structure of bottom, one adjustment sleeve (6) is installed between valve seat (2) upper-end surface and valve gap (5) lower end surface, this adjustment sleeve (6) endoporus coordinates with spool (3) cylindrical outer wall motive sealing, be shaped with netted open-end hole on adjustment sleeve (6) sidewall of valve closes state lower valve core (3) cylinder lower outside, form pressure regulating cavity (7) between spool (3) cylinder upper-end surface and valve gap (5), this pressure regulating cavity (7) is communicated with valve body (1) outlet passage.
2. pressure regulator valve according to claim 1, is characterized in that the sidewall that adjustment sleeve (6) is communicated with outlet passage is comprised of the double-layered cylinder net.
3. pressure regulator valve according to claim 1 and 2, is characterized in that valve body (1), valve gap (5) adopt forged steel pieces.
4. pressure regulator valve according to claim 1 and 2, is characterized in that being provided with filter screen (8) in valve body (1) outlet passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320431258.8U CN203374904U (en) | 2013-07-05 | 2013-07-05 | Pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320431258.8U CN203374904U (en) | 2013-07-05 | 2013-07-05 | Pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374904U true CN203374904U (en) | 2014-01-01 |
Family
ID=49837433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320431258.8U Expired - Fee Related CN203374904U (en) | 2013-07-05 | 2013-07-05 | Pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895167A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | A kind of hydraulic pressure cast steel gate valve |
-
2013
- 2013-07-05 CN CN201320431258.8U patent/CN203374904U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895167A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | A kind of hydraulic pressure cast steel gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wei Yubin Inventor after: Ye Qianmao Inventor after: Chen Juandan Inventor after: Ma Jingyong Inventor after: Jin Yan Inventor after: Ning Jing Inventor before: Wei Yubin Inventor before: Ye Mao Inventor before: Chen Juandan Inventor before: Ma Jingyong Inventor before: Jin Yan Inventor before: Ning Jing |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WEI YUBIN YE MAO CHEN JUANDAN MA JINGYONG JIN YAN NING JING TO: WEI YUBIN YE QIANMAO CHEN JUANDAN MA JINGYONG JIN YAN NING JING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180625 Address after: 323006 3 Bi Zhong Road, Bi Hu Town, Liandu District, Lishui, Zhejiang. Patentee after: South Valve Technology Co., Ltd. Address before: 325102 Zhejiang province Yongjia County Oubei Town East Industrial Zone Patentee before: Southern Valve Manufacturing Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20200705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |