CN101737506A - Single-seat adjusting valve - Google Patents
Single-seat adjusting valve Download PDFInfo
- Publication number
- CN101737506A CN101737506A CN200810244539A CN200810244539A CN101737506A CN 101737506 A CN101737506 A CN 101737506A CN 200810244539 A CN200810244539 A CN 200810244539A CN 200810244539 A CN200810244539 A CN 200810244539A CN 101737506 A CN101737506 A CN 101737506A
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- CN
- China
- Prior art keywords
- valve
- guide sleeve
- spool
- valve body
- seat adjusting
- 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.)
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- Lift Valve (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a single-seat adjusting valve capable of bearing larger pressure difference, comprising a valve body, a valve cover and a valve rod. The valve body is internally provided with a valve cavity, and a water inlet and a water outlet which are communicated with the valve cavity and a valve core outlet; a valve seat is arranged in the valve cavity; a guide sleeve is arranged at the valve core outlet and internally provided with a guide bush; the guide sleeve is pressed tightly by the valve cover through a sealing gasket arranged between the guide sleeve and the valve cover; the valve body is pressed tightly by the guide sleeve through a sealing gasket arranged between the guide sleeve and the valve body; a stuffing box is arranged in the valve cover; the valve rod movably passes through the stuffing box and is connected with the valve core movably arranged in the guide bush, thereby a valve rod cavity is arranged among the valve rod, the valve core and the stuffing box; and the valve core is internally provided with a balance channel for communicating the water inlet and the valve rod cavity. The invention overcomes the defect that the traditional single-seat adjusting valve only can bear smaller pressure difference, widens the application occasions and high higher cost performance.
Description
Technical field
The present invention relates to modulating valve, refer more particularly to single-seat adjusting valve.
Background technique
As everyone knows, sleeve adjusting valve can bear bigger pressure reduction, but leaks more serious.In order to improve leakage class, in sleeve adjusting valve, increased seal ring.Like this, leakage class is to have improved, but the cost of entire sleeve modulating valve also significantly improved, because the price of a seal ring is equivalent to the price of entire sleeve modulating valve trim.Compare with sleeve adjusting valve, the cost of single-seat adjusting valve is lower, and leakage class is higher, still, blemish in an otherwise perfect thing be: the pressure reduction that can bear is less, and it is comparatively narrow to cause it can adapt to occasion.
Summary of the invention
A technical problem to be solved by this invention is: a kind of single-seat adjusting valve that bears big pressure reduction is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: single-seat adjusting valve, comprise: valve body, valve gap and valve rod, the water intake that is provided with valve pocket in the described valve body and is connected with valve pocket, water outlet and spool outlet, in the valve body lumen valve seat is installed, described spool outlet port is provided with guide sleeve, be provided with guide bush in the guide sleeve, described valve gap is by the gasket seal compressing guide sleeve between guide sleeve and valve gap, guide sleeve compresses valve body by the gasket seal between guide sleeve and valve body again, be provided with stuffing box in the valve gap, described valve handle activity is located in the stuffing box, be connected with the spool in being movably arranged on guide bush, thereby at valve rod, form valve-rod cavity between spool and the stuffing box; Offer the balance channel that is communicated with water intake and valve-rod cavity in the described spool.
Also be provided with the seal ring that overlaps together with guide bush between described guide sleeve and the spool.
The concrete set-up mode of described balance channel is: the top of described spool is provided with annular platform, forms stepped construction, the bottom surface central authorities of spool offer main equalizing orifice, offer the oblique secondary equalizing orifice that several communicate with main equalizing orifice on the annular platform.
All secondary equalizing orifices are evenly arranged on the annular platform.
The invention has the beneficial effects as follows: the present invention is communicated with the balance channel that water intake is connected with valve-rod cavity by offering in spool, overcome original single-seat adjusting valve and can bear the little shortcoming of pressure reduction, through the single-seat adjusting valve after improving, the sleeve adjusting valve of (identical inside nominal diameter uniform pressure grade) is similar under its actual permission pressure reduction and the equal conditions, thereby has expanded its application; And the cost of single-seat adjusting valve is than sleeve adjusting valve considerably cheaper, and in other words, the cost performance of the single-seat adjusting valve after the improvement is higher.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1, valve body, 10, valve pocket, 11, water intake, 12, water outlet, 13, flange in the valve body, 14, gasket seal, 15, gasket seal, 2, valve seat, 3, spool, 31, annular platform, 32, main equalizing orifice, 33, secondary equalizing orifice, 4, guide sleeve, 5, guide bush, 6, seal ring, 7, valve gap, 71, stuffing box, 72, valve-rod cavity, 8, valve rod.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 1, single-seat adjusting valve of the present invention, comprise: valve body 1, valve gap 7 and valve rod 8, the water intake 11 that is provided with valve pocket 10 and is connected in the described valve body 1 with valve pocket, flange 13 in water outlet 12 and the valve body, flange 13 is provided with the spool outlet in the valve body, valve seat 2 is installed in the valve body lumen, be provided with guide sleeve 4 in the spool outlet, be set with guide bush 5 in the guide sleeve 4, described valve gap 7 is by gasket seal 14 compressing guide sleeve 4 between guide sleeve 4 and valve gap 7, guide sleeve 4 compresses valve body 1 by the gasket seal 15 between guide sleeve 4 and valve body 1 again, be provided with stuffing box 71 in the valve gap 7, described valve rod 8 activities are located in the stuffing box 71, be connected with the spool 3 in being movably arranged on guide bush 5, thereby at valve rod 8, form valve-rod cavity 72 between the inner chamber of spool 3 and valve gap 7; Offer the balance channel that is communicated with water intake 11 and valve-rod cavity 72 in the described spool 3, its structure is: the top of spool 3 is provided with annular platform 31, forms stepped construction, the bottom surface central authorities of spool 3 offer main equalizing orifice 32, offer at least two oblique secondary equalizing orifices 33 that communicate with main equalizing orifice 32 on the annular platform 31, all secondary equalizing orifices 33 are evenly arranged on the annular platform 31.In the present embodiment, described guide sleeve 4 also is provided with the seal ring 6 that laminates with guide bush 5 between spool 3, is used to increase the sealing effect of valve-rod cavity 72.
Working principle of the present invention is: when needs were closed, medium flow to the valve-rod cavity 72 by main equalizing orifice 32 and a plurality of secondary equalizing orifice 33 from liquid entering hole, will give 3 one downward pressure of spool by the medium of secondary equalizing orifice 33, impelled spool 3 and valve seat 2 airtight.So just reduced the unbalanced force of single-seat adjusting valve, increase it greatly and born the ability of pressure reduction, the sleeve adjusting valve of (identical inside nominal diameter uniform pressure grade) is similar under its actual permission pressure reduction and the equal conditions, thereby can adapt to wider pressure range, its application is also just more wide; And the cost of single-seat adjusting valve is than sleeve adjusting valve considerably cheaper, and in other words, the cost performance of the single-seat adjusting valve after the improvement is higher.
Claims (4)
1. single-seat adjusting valve, comprise: valve body, valve gap and valve rod, the water intake that is provided with valve pocket in the described valve body and is connected with valve pocket, water outlet and spool outlet, in the valve body lumen valve seat is installed, described spool outlet port is provided with guide sleeve, be provided with guide bush in the guide sleeve, described valve gap is by the gasket seal compressing guide sleeve between guide sleeve and valve gap, guide sleeve compresses valve body by the gasket seal between guide sleeve and valve body again, be provided with stuffing box in the valve gap, described valve handle activity is located in the stuffing box, be connected with the spool in being movably arranged on guide bush, thereby at valve rod, form valve-rod cavity between spool and the stuffing box; Offer the balance channel that is communicated with water intake and valve-rod cavity in the described spool.
2. single-seat adjusting valve as claimed in claim 1 is characterized in that: also be provided with the seal ring that overlaps together with guide bush between described guide sleeve and the spool.
3. single-seat adjusting valve as claimed in claim 1 or 2, it is characterized in that: the concrete set-up mode of described balance channel is: the top of described spool is provided with annular platform, forms stepped construction, the bottom surface central authorities of spool offer main equalizing orifice, offer the oblique secondary equalizing orifice that several communicate with main equalizing orifice on the annular platform.
4. single-seat adjusting valve as claimed in claim 3 is characterized in that: all secondary equalizing orifices are evenly arranged on the annular platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810244539 CN101737506B (en) | 2008-11-20 | 2008-11-20 | Single-seat adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810244539 CN101737506B (en) | 2008-11-20 | 2008-11-20 | Single-seat adjusting valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101737506A true CN101737506A (en) | 2010-06-16 |
| CN101737506B CN101737506B (en) | 2013-02-13 |
Family
ID=42461382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810244539 Expired - Fee Related CN101737506B (en) | 2008-11-20 | 2008-11-20 | Single-seat adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101737506B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853101A (en) * | 2011-06-27 | 2013-01-02 | 浙江三花股份有限公司 | Flow control valve |
| CN102927297A (en) * | 2012-11-15 | 2013-02-13 | 无锡智能自控工程股份有限公司 | Anti-drop structure for regulating valve bushing |
| CN103498942A (en) * | 2013-09-02 | 2014-01-08 | 河南航天液压气动技术有限公司 | Valve |
| CN104676077A (en) * | 2015-03-22 | 2015-06-03 | 衢州迪升工业设计有限公司 | Normally-open electromagnetic valve with piston structure |
| CN105042139A (en) * | 2015-07-14 | 2015-11-11 | 江苏康创自控工程有限公司 | High-pressure-difference adjusting valve |
| CN106641279A (en) * | 2016-12-23 | 2017-05-10 | 重庆特通阀门有限公司 | Double-orientation balance adjustment valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62233584A (en) * | 1986-04-02 | 1987-10-13 | Yamatake Honeywell Co Ltd | Bellows valve |
| US5277403A (en) * | 1993-05-12 | 1994-01-11 | Dresser-Rand Company | Balanced, steam control valve assembly, and a plug-type valving element therefor |
| CN2156353Y (en) * | 1993-02-18 | 1994-02-16 | 刘树范 | Self-balance valve |
| CN201326753Y (en) * | 2008-11-20 | 2009-10-14 | 张家港市科辰仪表有限公司 | Single-seat regulating valve |
-
2008
- 2008-11-20 CN CN 200810244539 patent/CN101737506B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62233584A (en) * | 1986-04-02 | 1987-10-13 | Yamatake Honeywell Co Ltd | Bellows valve |
| CN2156353Y (en) * | 1993-02-18 | 1994-02-16 | 刘树范 | Self-balance valve |
| US5277403A (en) * | 1993-05-12 | 1994-01-11 | Dresser-Rand Company | Balanced, steam control valve assembly, and a plug-type valving element therefor |
| CN201326753Y (en) * | 2008-11-20 | 2009-10-14 | 张家港市科辰仪表有限公司 | Single-seat regulating valve |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853101A (en) * | 2011-06-27 | 2013-01-02 | 浙江三花股份有限公司 | Flow control valve |
| CN102853101B (en) * | 2011-06-27 | 2013-10-02 | 浙江三花股份有限公司 | Flow control valve |
| CN102927297A (en) * | 2012-11-15 | 2013-02-13 | 无锡智能自控工程股份有限公司 | Anti-drop structure for regulating valve bushing |
| CN103498942A (en) * | 2013-09-02 | 2014-01-08 | 河南航天液压气动技术有限公司 | Valve |
| CN103498942B (en) * | 2013-09-02 | 2016-06-01 | 河南航天液压气动技术有限公司 | A kind of valve |
| CN104676077A (en) * | 2015-03-22 | 2015-06-03 | 衢州迪升工业设计有限公司 | Normally-open electromagnetic valve with piston structure |
| CN105042139A (en) * | 2015-07-14 | 2015-11-11 | 江苏康创自控工程有限公司 | High-pressure-difference adjusting valve |
| CN106641279A (en) * | 2016-12-23 | 2017-05-10 | 重庆特通阀门有限公司 | Double-orientation balance adjustment valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101737506B (en) | 2013-02-13 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20130213 Termination date: 20161120 |