CN202251998U - Cage-type regulating valve provided with reinforced plate valve core - Google Patents
Cage-type regulating valve provided with reinforced plate valve core Download PDFInfo
- Publication number
- CN202251998U CN202251998U CN2011203507132U CN201120350713U CN202251998U CN 202251998 U CN202251998 U CN 202251998U CN 2011203507132 U CN2011203507132 U CN 2011203507132U CN 201120350713 U CN201120350713 U CN 201120350713U CN 202251998 U CN202251998 U CN 202251998U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve core
- spool
- cage
- reinforced plate
- 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 relates to a cage-type regulating valve provided with a reinforced plate valve core. The regulating valve comprises a valve body, a graphite gasket, a valve base, a sealing surface, the valve core, a valve rod, a supporting ring, a sealing ring, a valve cage and a valve core reinforced plate, wherein the valve core reinforced plate is round, a circular plate surface is provided with a plurality of through holes, and the valve core reinforced plate is fixed on the cavity port end of the valve core through welding. The regulating valve provided by the utility model is characterized in that the valve core reinforced plate is welded on the lower part of a medium inlet, namely the valve core, the intensity of the valve core is increased, the deformation of valve core is controlled, and the service life of the regulating valve is prolonged. The valve core is subjected to less deformation when the temperature difference of a medium flowing through the regulating valve is large, the valve cage of the valve core maintains an initial gap, the stroke of the regulating valve is guaranteed, and good seal is formed between the valve core and the valve base, thereby guaranteeing the leakage grade of the regulating valve.
Description
Technical field
The utility model relates to a kind of cage type regulating valve, particularly a kind of cage type regulating valve that has the stiffening plate spool.
Background technique
Traditional cage type regulating valve spool is as shown in Figure 3, and is high in temperature when modulating valve, when pressure reduction is big, and spool is yielding; Cause spool and valve cage gap smaller even locking; Make valve rod can not drive spool and in valve cage, well move up and down, influence the modulating valve displacement, cause modulating valve to lose regulatory function; Because the spool distortion makes spool and valve seat can not form good sealing, the amount of leakage of modulating valve is increased, reduce the leakage grade of valve.
Summary of the invention
In view of the deficiency that existing technology exists, the utility model adopts the spool reinforced structure that a kind of cage type regulating valve that has the stiffening plate spool is provided.
The utility model is for realizing above-mentioned purpose; The technological scheme of being taked is: a kind of cage type regulating valve that has the stiffening plate spool; Comprise that valve body, Graphite pad, valve seat, sealing surface, spool, valve rod, supporting ring, seal ring, valve cage assembling constitute, and is characterized in that: also comprise the spool stiffening plate, said spool stiffening plate is circular; On the circular plate face, be provided with several through holes, the spool stiffening plate is weldingly fixed on the accent end of said spool.
The characteristics of the utility model are: is spool bottom welding spool stiffening plate at medium inlet place, has increased spool intensity, the distortion of control spool improves modulating valve working life.Spool distortion when the high differential pressure of medium temperature of the modulating valve of flowing through is big is little, and the spool valve cage keeps the original interstice, has guaranteed the stroke of modulating valve, forms well sealing between spool and the valve seat, has guaranteed the leakage grade of modulating valve.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the utility model valve core structure schematic representation.
Fig. 3 is traditional cage type regulating valve valve core structure schematic representation.
Embodiment
Like Fig. 1, shown in 2; The cage type regulating valve that has the stiffening plate spool; Comprise that valve body 1, Graphite pad 2, valve seat 3, sealing surface 4, spool 5, valve rod 7, supporting ring 8, seal ring 9, valve cage 10 assemblings constitute, also comprise spool stiffening plate 6, said spool stiffening plate 6 is circular; On the circular plate face, be provided with several through holes 6-1, spool stiffening plate 6 is weldingly fixed on the accent end of said spool 5.In the groove on spool 5 cylindricals; Be provided with supporting ring 8, seal ring 9 successively, spool 5 upper ends are valve rod 7 fixedly, and valve seat 3 is arranged in valve body 1 chamber; The seam of valve seat 3 docks with the seam of valve body 1; Be provided with Graphite pad 2 two butt joints between the seam, spool 5 places in valve body 1 chamber, and spool 5 and the sealing surface 4 of valve seat 3 that valve is in when cutting out connect.Spool is the modulating valve trim, is in the runner of valve, and with the valve cage guiding, valve rod drives spool and moves at the valve cage cathetus, is used for damming of fluid; Be again the obturator of modulating valve, medium flow velocity between spool and valve seat is very fast, very easily is out of shape when temperature height and pressure reduction are big; And the reinforcement spool is a spool bottom welding spool stiffening plate at the place, medium inlet, has increased spool intensity; Control spool distortion improves modulating valve working life.
Claims (1)
1. cage type regulating valve that has the stiffening plate spool; Comprise that valve body (1), Graphite pad (2), valve seat (3), sealing surface (4), spool (5), valve rod (7), supporting ring (8), seal ring (9), valve cage (10) assembling constitute; It is characterized in that: also comprise spool stiffening plate (6); Said spool stiffening plate (6) is circular, on the circular plate face, is provided with several through holes (6-1), and spool stiffening plate (6) is weldingly fixed on the accent end of said spool (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203507132U CN202251998U (en) | 2011-09-19 | 2011-09-19 | Cage-type regulating valve provided with reinforced plate valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203507132U CN202251998U (en) | 2011-09-19 | 2011-09-19 | Cage-type regulating valve provided with reinforced plate valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251998U true CN202251998U (en) | 2012-05-30 |
Family
ID=46113241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203507132U Expired - Fee Related CN202251998U (en) | 2011-09-19 | 2011-09-19 | Cage-type regulating valve provided with reinforced plate valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251998U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257855A (en) * | 2015-11-23 | 2016-01-20 | 浙江大学 | High-parameter multistage pressure reducing valve with porous valve core |
| CN105387269A (en) * | 2015-11-23 | 2016-03-09 | 浙江大学 | Device and method for reducing energy loss in temperature and pressure reduction process under extreme conditions |
-
2011
- 2011-09-19 CN CN2011203507132U patent/CN202251998U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257855A (en) * | 2015-11-23 | 2016-01-20 | 浙江大学 | High-parameter multistage pressure reducing valve with porous valve core |
| CN105387269A (en) * | 2015-11-23 | 2016-03-09 | 浙江大学 | Device and method for reducing energy loss in temperature and pressure reduction process under extreme conditions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140919 |
|
| EXPY | Termination of patent right or utility model |