CN201090748Y - Control valve for automatically adjusting center - Google Patents
Control valve for automatically adjusting center Download PDFInfo
- Publication number
- CN201090748Y CN201090748Y CNU2007200809045U CN200720080904U CN201090748Y CN 201090748 Y CN201090748 Y CN 201090748Y CN U2007200809045 U CNU2007200809045 U CN U2007200809045U CN 200720080904 U CN200720080904 U CN 200720080904U CN 201090748 Y CN201090748 Y CN 201090748Y
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- CN
- China
- Prior art keywords
- valve
- control valve
- control
- base
- spool
- 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 control valve which can adjust the center automatically. The utility model comprises a valve body, a valve base, a valve rod and a valve core; wherein, a valve base installation groove is arranged on the valve body and the valve base is movably arranged in the valve base installation groove. Based on the gap-type design between the valve body and the valve base, the utility model realizes the automatic center alignment of the valve core and the valve base without manual control. The center alignment of the valve core and the valve base is automatic without grinding so that the control valve is closed tightly and the leakage grade of the control valve is improved. Because the valve core is not in threaded connection with the valve base, the valve body can not be discarded due to thread erosion. The control valve has the advantages of simple assembly and convenient maintenance, which saves cost and eliminates the hidden trouble of accident to ensure normal production process and safe production.
Description
Technical field
The utility model relates to a kind of control valve that is used for automatic control system, relates in particular to a kind of spool and valve seat to be adjusted into concentric control valve automatically.
Background technique
Control valve is a final element of outbalance in the automatic control system, is used for the regulated fluid flow, overcomes interference, guarantees that controlled variable reaches given craft index, and normal operation and the safety in production that guarantees tooling had great significance.The valve portion of control valve is made up of trim and valve body, and trim comprises spool, valve seat, stuffing box and valve gap etc., and valve seat and valve body are concentric.The valve seat of tradition control valve is to link to each other with valve body by screw thread, after the screw thread of valve seat and valve body joint is corroded, can cause valve body to be scrapped, and has improved manufacture cost.And because valve seat is fixed on the valve body, when processing, assembling, is difficult to reach and makes valve seat and valve body concentric, the processing and assembling difficulty strengthens, and can not guarantee higher leakage class.
And the spool valve rod of traditional control valve adopts split-type structural, and the spool valve rod is to be threaded by taper pin to form.Adopt the spool valve rod of split-type structural mainly to have following problem: form because the spool valve rod adopts taper pin to be threaded, in use, the taper pin easy-rupturing causes spool and valve rod to break away from, and makes troubles to production, and has potential safety hazard; Existing valve rod is thinner, and in use, thrust is less, and it is close that control valve is not closed completely, cause that control valve leaks, and it is crooked or fracture valve rod often to occur, control accuracy and reliability are low, and working life is short, production can not normally be carried out, improved cost of production, reduced manufacturing efficiency.
Summary of the invention
The purpose of this utility model is to overcome the problems referred to above that existing control valve exists, and the control valve at a kind of automatic adjustment center is provided.The utility model can be adjusted into spool and valve seat with one heart automatically, and processing and assembling is simple, and nothing is threaded between valve seat and valve body, can not occur during use because screw thread is corroded and causes valve body to be scrapped.
For achieving the above object, the technical solution adopted in the utility model is as follows:
The control valve at a kind of automatic adjustment center comprises valve body, valve seat, valve rod and spool, it is characterized in that: have the valve seat mounting groove on the described valve body, valve seat is movably arranged in the valve seat mounting groove.
Described valve rod and spool are an integral body.
Adopt advantage of the present utility model to be:
One, the utility model is by valve body and the design of valve seat clearance type, and promptly valve seat can move in mounting groove, has realized the self-alignment center of spool and valve seat, does not need manual control.
Two, spool and valve seat self-alignment center do not need to grind, and it is tighter that control valve is closed, and improved the control valve leakage class.
Three, because valve body and valve seat do not have threaded connection relation, the situation that the screw thread corrosion causes valve body to be scrapped can not take place.
Four, loading and unloading are easy, and maintenance is repaired simple, save cost, and eliminated the hidden danger of accident, guaranteed to produce normal operation and safety in production.
Five, valve rod and spool are monolithic construction, can bear High Pressure Difference, have solved the problem that traditional spool and valve rod come off, and valve rod can be not crooked and fractures, and has improved the reliability that control valve uses; The diameter of valve rod is 2-3 a times of traditional valve rod, can accept the thrust bigger than traditional control valve, and it is tighter that control valve is closed, and improved the control valve leakage class; Adopt monolithic construction to improve control accuracy, prolonged control valve working life, saved cost, improved manufacturing efficiency, and eliminated potential safety hazard, safe in utilization.
Description of drawings
Fig. 1 is the utility model structural representation
Be labeled as among the figure: 1, valve body, 2, valve seat, 3, valve rod, 4, spool.
Embodiment
The control valve at a kind of automatic adjustment center comprises valve body 1, valve seat 2, valve rod 3 and spool 4, has the valve seat mounting groove on the described valve body 1, and valve seat 2 is movably arranged in the valve seat mounting groove, and valve rod 3 and spool 4 can be an integral body.
Compare with traditional control valve, the utlity model has following advantage: one, the utility model passes through valve body With the design of valve seat clearance-type, namely valve seat can move in mounting groove, has realized the self-alignment of spool and valve seat The center does not need Artificial Control. Two, spool and valve seat self-alignment center do not need to grind, and make control valve Close tightlyer, improved the control valve leakage class. Three, because spool and valve seat do not have threaded connection relation, The situation that the screw thread corrosion causes valve body to be scrapped can not take place. Four, loading and unloading are easy, and maintenance is repaired simple, saves into This, and eliminated the hidden danger of accident, guaranteed to produce normal operation and safety in production. Five, valve rod and spool Be monolithic construction, can bear High Pressure Difference, solved the problem of traditional spool and stem dropping, valve rod can be not curved Bent and fracture, improved the reliability that control valve uses; The diameter of valve rod is 2-3 times of traditional valve rod, can accept Than the bigger thrust of traditional control valve, it is tighter that control valve is closed, and improved the control valve leakage class; Adopt whole Body formula structure has improved control accuracy, has prolonged control valve service life, has saved cost, has improved and has produced effect Rate, and eliminated potential safety hazard, use safety.
Claims (2)
1. the control valve at an automatic adjustment center comprises valve body (1), valve seat (2), valve rod (3) and spool (4), and it is characterized in that: described valve body has the valve seat mounting groove on (1), and valve seat (2) is movably arranged in the valve seat mounting groove.
2. the control valve at automatic adjustment according to claim 1 center is characterized in that: described valve rod (3) and spool (4) are an integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200809045U CN201090748Y (en) | 2007-08-31 | 2007-08-31 | Control valve for automatically adjusting center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200809045U CN201090748Y (en) | 2007-08-31 | 2007-08-31 | Control valve for automatically adjusting center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090748Y true CN201090748Y (en) | 2008-07-23 |
Family
ID=39862508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200809045U Expired - Fee Related CN201090748Y (en) | 2007-08-31 | 2007-08-31 | Control valve for automatically adjusting center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090748Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757951A (en) * | 2018-07-24 | 2018-11-06 | 浙江力诺流体控制科技股份有限公司 | Combined type regulating valve |
| CN114458771A (en) * | 2021-12-20 | 2022-05-10 | 欧维克集团有限公司 | Stop valve |
| CN114483217A (en) * | 2022-01-10 | 2022-05-13 | 无锡蓝天燃机热电有限公司 | Automatic main valve rod disassembly and maintenance method for steam turbine with pre-opening valve |
-
2007
- 2007-08-31 CN CNU2007200809045U patent/CN201090748Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757951A (en) * | 2018-07-24 | 2018-11-06 | 浙江力诺流体控制科技股份有限公司 | Combined type regulating valve |
| CN114458771A (en) * | 2021-12-20 | 2022-05-10 | 欧维克集团有限公司 | Stop valve |
| CN114483217A (en) * | 2022-01-10 | 2022-05-13 | 无锡蓝天燃机热电有限公司 | Automatic main valve rod disassembly and maintenance method for steam turbine with pre-opening valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHI HONGLIANG Free format text: FORMER OWNER: CHENGDU ATEMI CONTROL VALVE INSTRUMENT CO., LTD. Effective date: 20080801 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080801 Address after: No. 4, unit 13, 5 Guanghua Street, No. 66, Guanghua District, Sichuan, Chengdu, Qingyang: 610072 Patentee after: Shi Hongliang Address before: A325, 4 innovation center, West Central Road, hi tech West District, Sichuan, Chengdu 611731, China Patentee before: Chengdu Atemi Control Valve Instrument Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU OPTIMUX CONTROL VALVE CO., LTD Free format text: FORMER OWNER: SHI HONGLIANG Effective date: 20100805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610072 NO.5, UNIT 4, BUILDING 13, NO.66, GUANGHUA STREET, QINGYANG DISTRICT, CHENGDU CITY, SICHUAN PROVINCE TO: 610041 1/F, NO.7, NANYI ROAD, SCIENCE AND TECHNOLOGY PARK, NEW + HIGH-TECHNOLOGY ZONE, CHENGDU CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100805 Address after: 610041, No. 1, No. 7, South First Road, Chengdu hi tech Zone Patentee after: CHENGDU OPTIMUX CONTROL VALVES & INSTRUMENT CO., LTD. Address before: 610072, No. 4, unit 13, 66 Guanghua Street, Qingyang District, Sichuan, Chengdu, 5 Patentee before: Shi Hongliang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20140831 |
|
| EXPY | Termination of patent right or utility model |