CN2916284Y - High performance cage type control valve resistant to high temperature and low temperature - Google Patents
High performance cage type control valve resistant to high temperature and low temperature Download PDFInfo
- Publication number
- CN2916284Y CN2916284Y CN 200620026441 CN200620026441U CN2916284Y CN 2916284 Y CN2916284 Y CN 2916284Y CN 200620026441 CN200620026441 CN 200620026441 CN 200620026441 U CN200620026441 U CN 200620026441U CN 2916284 Y CN2916284 Y CN 2916284Y
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- CN
- China
- Prior art keywords
- valve
- spool
- cage
- temperature resistant
- sealing
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- 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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- Details Of Valves (AREA)
Abstract
The utility model relates to an adjusting valve, in particular to a high and low-temperature resistant cage-shaped adjusting valve. The adjusting valve is to tighten the sealing surface of a valve core with the sealing surface of a valve base so as to form a mental hard sealing. The metal elastic sealing is to place the C-shaped section metal sealing ring on the outer stair surface of the valve core with the guard ring fastened on the valve core. The valve cage is suited on the outer surface of the valve core and the metal sealing ring and the valve cage form a tilting-end sealing surface, namely, forming a metal elastic sealing. The adoption of this mechanism reduces the difficulty of processing and assembling and enhances greatly the performance of the valve under the premise of not increasing cost; moreover, the service life could be prolonged and the leakage quantity could be improved to a high reaching the national leakage quantity grade-4. In addition, the device can be used under the high temperature between 230 Celsius system to 538 Celsius system and low temperature between minus 101 Celsius system to minus 18 Celsius system.
Description
Technical field
The utility model relates to a kind of modulating valve, particularly a kind of high temperature resistant low temperature resistant high-performance cage type regulating valve.
Technical background
On the cage type regulating valve valve cage the parallel metal hard-sealing line of twice is arranged at present, therefore valve cage and spool with matching there are strict form and position tolerance and size tolerance requirements when the machining, the machining difficulty is very big, strict demand is also arranged in when assembling on to parallelism, concentricity, perpendicularity, sealing surface at valve gap and valve cage adopts asbestos packing to add metal winding sheet simultaneously, asbestos packing is nonelastic, long-term use easily produces the gap and leakage is arranged, therefore three grades of leakage rates can only be up to state standards, limited by serviceability temperature, can not under high temperature or low temperature, use.
Summary of the invention
Problem in view of above-mentioned prior art existence, the utility model provides a kind of high temperature resistant low temperature resistant high-performance cage type regulating valve, it is floating structure that this valve adopts valve seat, valve cage, increase metal elastic-sealed together by C type metallic packing ring, and the metal hard-sealing structure improved, promptly formed metal elastic-sealed structure together, simultaneously asbestos washer has been changed into Graphite pad, therefore had the performance of better elasticity and high temperature resistant or low temperature with metal hard-sealing.
The utility model is that the technological scheme that overcomes the above problems employing is: a kind of high temperature resistant low temperature resistant high-performance cage type regulating valve, comprise valve body, valve seat, spool, valve cage, valve gap, valve rod, it is characterized in that: also comprise Graphite pad, carbon seal ring, the metal wound gasket, metallic shim, pin, also comprise the metal hard-sealing and spool and the metallic packing ring that form with the sealing surface of spool by described valve seat, guard ring, it is metal elastic-sealed together that valve cage and sealing surface form, described metal hard-sealing is valve seat to be placed by Graphite pad have on the valve body that cooperates the figure connected in star with valve seat, the sealing surface of spool and the sealing surface of valve seat are close to, described metal elastic-sealed be that the outer side surface top of spool and the lower inside of guard ring are processed as positive and negative stairstepping, upper end in positive and negative stairstepping part is with the screw thread screw thread respectively, described metallic packing ring is nested with on the outer ladder table top of spool, described guard ring outer upper has the groove that the cross section is a rectangle, carbon seal ring is housed in groove, guard ring is fastened on the spool by the screw thread screw thread, described valve cage is sleeved on the outer surface of spool, be placed on again on the upper-end surface of valve seat, described sealing surface is that valve cage and metallic packing ring form, sealing surface and guard ring longitudinal center line are 12 ° of angles, spool is fixed on the lower end of valve rod by pin, is lined with the metal wound gasket from bottom to top successively in the centre of valve gap and valve cage, metallic shim, Graphite pad.
After adopting such structure, processing and assembling difficulty have been reduced, under the prerequisite that does not have to increase at cost, the performance of valve is greatly improved, life-span obtains prolonging, leakage rate has improved a grade, can reach national leakage rate level Four, and can use in the environment of 230 ℃～538 ℃ of high temperature, low temperature-101～-18 ℃.
Description of drawings
Fig. 1 is the utility model structural representation and as Figure of abstract.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is a Graphite pad interface schematic representation.
Among the figure: 1. valve body, 2. Graphite pad, 3. valve seat, 4. sealing surface, 5. spool, 6. metallic packing ring, 7. guard ring, 8. carbon seal ring, 9. valve cage, 10. metal wound gasket, 11. metallic shims, 12. Graphite pads, 13. valve gaps, 14. valve rods, 15. pins, 16. sealing surfaces.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is explained in further detail.
As Fig. 1, Fig. 2, shown in Figure 3, valve seat 3 places by Graphite pad 2 and has on the valve body 1 that cooperates the figure connected in star with valve seat 3, can do the adjustment of trace, the sealing surface 4 of spool 5 is floated with the concentric automatically valve seat that is of the sealing surface on valve seat 3 endoporus, valve is in when cutting out, the sealing surface 4 of spool 5 is close to the formation metal hard-sealing with the sealing surface of valve seat 3, metallic packing ring 6 cross sections are C shape (hollow), metallic packing ring 6 is nested with on spool 5 outer surface ladders and contacts with table top, respectively carbon seal ring 8 is sleeved on again in the groove on guard ring 7 outer surfaces, carbon seal ring 8 is that two semi-circular sections are square ring bodies, these two L shaped notches that semi-annular shape body jointing is positive counter bite, the interlock of two semicircle shape body phases is a ring bodies, guard ring 7 is fastened on the spool 5 ladder screw thread screw threads by the screw thread screw thread then, form a complete spool 5, valve cage 9 is sleeved on the outside of complete spool 5, whole again being placed on the upper-end surface of valve seat 3.Sealing surface 16 is that valve cage 9 forms with metallic packing ring 6, sealing face 16 be with guard ring 7 longitudinal center lines be 12 ° of angles tiltedly slightly, Graphite pad 2,12 comprises two-layer graphite material respectively and adds the layer of metal keel in the centre.
Claims (4)
1. high temperature resistant low temperature resistant high-performance cage type regulating valve, comprise valve body (1), valve seat (3), spool (5), valve cage (9), valve gap (13), valve rod (14), it is characterized in that: also comprise Graphite pad (2), (12), carbon seal ring (8), metal wound gasket (10), metallic shim (11), pin (15), also comprise the metal hard-sealing and the spool (5) and metallic packing ring (6) that form with the sealing surface (4) of spool (5) by described valve seat (3), guard ring (7), it is metal elastic-sealed together that valve cage (9) and sealing surface (16) form, described metal hard-sealing is valve seat (3) to be placed by Graphite pad (2) have on the valve body (1) that cooperates the figure connected in star with valve seat (3), the sealing surface (4) of spool (5) is close to the sealing surface of valve seat (3), described metal elastic-sealed be that the outer side surface top of spool (5) and the lower inside of guard ring (7) are processed as positive and negative stairstepping, upper end in positive and negative stairstepping part is with the screw thread screw thread respectively, described metallic packing ring (6) is nested with on the outer ladder table top of spool (5), described guard ring (7) outer upper has the groove that the cross section is a rectangle, carbon seal ring (8) is housed in groove, guard ring (7) is fastened on the spool (5) by the screw thread screw thread, described valve cage (9) is sleeved on the outer surface of spool (5), be placed on again on the upper-end surface of valve seat (3), described sealing surface (16) is that valve cage (9) forms with metallic packing ring (6), sealing surface (16) is 12 ° of angles with guard ring (7) longitudinal center line, spool (5) is fixed on the lower end of valve rod (14) by pin (15), is lined with metal wound gasket (10) from bottom to top successively in the centre of valve gap (13) and valve cage (9), metallic shim (11), Graphite pad (12).
2. high temperature resistant low temperature resistant high-performance cage type regulating valve as claimed in claim 1 is characterized in that: described Graphite pad (2), (12) comprise two-layer graphite material respectively and add the layer of metal keel in the centre.
3. high temperature resistant low temperature resistant high-performance cage type regulating valve as claimed in claim 1, it is characterized in that: described carbon seal ring (8) is that two semi-circular sections are square ring bodies, these two L shaped notches that semi-annular shape body jointing is positive counter bite, the interlock of two semicircle shape body phases is a ring bodies.
4. high temperature resistant low temperature resistant high-performance cage type regulating valve as claimed in claim 1 is characterized in that: described metallic packing ring (6) cross section is a C shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026441 CN2916284Y (en) | 2006-06-16 | 2006-06-16 | High performance cage type control valve resistant to high temperature and low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026441 CN2916284Y (en) | 2006-06-16 | 2006-06-16 | High performance cage type control valve resistant to high temperature and low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916284Y true CN2916284Y (en) | 2007-06-27 |
Family
ID=38187196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620026441 Expired - Fee Related CN2916284Y (en) | 2006-06-16 | 2006-06-16 | High performance cage type control valve resistant to high temperature and low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916284Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518823A (en) * | 2011-12-27 | 2012-06-27 | 四川精控阀门制造有限公司 | Valve seat sealing structure |
| CN102588613A (en) * | 2012-02-22 | 2012-07-18 | 浙江德卡控制阀仪表有限公司 | Balance cage type single-seat regulation valve |
| CN103097785A (en) * | 2010-07-30 | 2013-05-08 | 费希尔控制国际公司 | Valve seat apparatus for use with fluid valves |
| CN103591315A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | Elastic C-shaped ring double-seat sealed cage type adjusting valve |
| CN103994234A (en) * | 2014-05-14 | 2014-08-20 | 吴忠仪表有限责任公司 | Novel sealing structure for internal notch of control valve |
| CN104048060A (en) * | 2013-03-14 | 2014-09-17 | 费希尔控制国际公司 | Graphite/metal valve seal assembly for high temperature control valves |
| CN107975605A (en) * | 2016-10-21 | 2018-05-01 | 艾默生过程管理调节技术公司 | Grid for adjuster controls valve cage |
| CN111255907A (en) * | 2019-12-23 | 2020-06-09 | 浙江永盛科技股份有限公司 | Adjustable sealing structure of regulating valve |
-
2006
- 2006-06-16 CN CN 200620026441 patent/CN2916284Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097785B (en) * | 2010-07-30 | 2015-07-15 | 费希尔控制国际公司 | Valve seat apparatus for use with fluid valves |
| CN103097785A (en) * | 2010-07-30 | 2013-05-08 | 费希尔控制国际公司 | Valve seat apparatus for use with fluid valves |
| CN102518823A (en) * | 2011-12-27 | 2012-06-27 | 四川精控阀门制造有限公司 | Valve seat sealing structure |
| CN102588613A (en) * | 2012-02-22 | 2012-07-18 | 浙江德卡控制阀仪表有限公司 | Balance cage type single-seat regulation valve |
| CN104048060B (en) * | 2013-03-14 | 2018-02-16 | 费希尔控制国际公司 | A kind of graphite metal valve seal assembly for high-temperature control valve |
| CN104048060A (en) * | 2013-03-14 | 2014-09-17 | 费希尔控制国际公司 | Graphite/metal valve seal assembly for high temperature control valves |
| CN103591315A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | Elastic C-shaped ring double-seat sealed cage type adjusting valve |
| CN103591315B (en) * | 2013-11-20 | 2016-01-20 | 无锡智能自控工程股份有限公司 | Elasticity C type ring two-seater sealing cage type regulating valve |
| CN103994234A (en) * | 2014-05-14 | 2014-08-20 | 吴忠仪表有限责任公司 | Novel sealing structure for internal notch of control valve |
| CN107975605A (en) * | 2016-10-21 | 2018-05-01 | 艾默生过程管理调节技术公司 | Grid for adjuster controls valve cage |
| CN107975605B (en) * | 2016-10-21 | 2022-01-04 | 艾默生过程管理调节技术公司 | Grid control cage for a regulator |
| CN111255907A (en) * | 2019-12-23 | 2020-06-09 | 浙江永盛科技股份有限公司 | Adjustable sealing structure of regulating valve |
| CN111255907B (en) * | 2019-12-23 | 2022-02-22 | 浙江永盛科技股份有限公司 | Adjustable sealing structure of regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 Termination date: 20120616 |