CN201487257U - Valve body and plug sealing structure of plunger type high-pressure adjusting valve - Google Patents
Valve body and plug sealing structure of plunger type high-pressure adjusting valve Download PDFInfo
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- CN201487257U CN201487257U CN2009201765999U CN200920176599U CN201487257U CN 201487257 U CN201487257 U CN 201487257U CN 2009201765999 U CN2009201765999 U CN 2009201765999U CN 200920176599 U CN200920176599 U CN 200920176599U CN 201487257 U CN201487257 U CN 201487257U
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Abstract
The utility model discloses a valve body and plug sealing structure of a plunger type high-pressure adjusting valve. The structure comprises a plunger type linear motion valve plug, wherein the valve plug is arranged in the valve body; a surface of the valve body radially matched with the valve plug is provided with a sealing slot two adjacent sides of which are opened; and one open side of the slot is provided with a pressure plate that plugs a spring-actuated sealing ring with a downward opening in the slot. The spring-actuated sealing ring is provided with an annular base body made from soft sealing materials, one end face of the annular base body is provided with a V-shaped cavity, an inner sealing lip and an outer sealing lip are formed, and a plurality of V-shaped metal elastic pieces are pressed in the V-shaped cavity and uniformly distributed along the peripheral direction. The sealing ring contacts the surface of the valve plug, the stress is uniform and stable, the wear resistance and the resistance to pressure are good, the friction coefficient is low and the sealing effect is ideal. The sealing slot is a slot the two adjacent sides of which are opened, and the sealing ring in the slot is convenient for disassembly and maintenance, thus enhancing the use stability of the system and prolonging the service life of the valve.
Description
Technical field:
The utility model relates to a kind of plunger type high-pressure modulating valve, relates in particular to a kind of valve body and seal spool structure of plunger type high-pressure modulating valve, and it can adapt to various unusual complicated operating modes.
Background technique:
Modulating valve is widely used in industries such as oil, chemical industry, nuclear facility and papermaking, but because the requirement difference of operating mode, the kind of medium and differential pressure conditions are also complicated unusually in addition, and feasible sealing to modulating valve has proposed higher requirement, particularly the plunger type high-pressure modulating valve.
And at present the valve body of plunger type high-pressure modulating valve commonly used and spool are (referring to the Fig. 2) that adopts seal ring sealing such as " O " shape, and seal ring and spool and valve body are to contact, can not be evenly stressed, and unusual obvious of wearing and tearing and surface friction drag, easy impaired generation leakage; Can not play good compensating action to the deficiency of valve body, spool radial deflection or size error; The seal groove that cause is inlayed seal ring is the groove of monolateral opening, and seal ring is difficult for packing into, in case after packing into, remove very difficulty, the inconvenience maintenance.Existing plunger type high-pressure modulating valve can not adapt to various unusual complicated operating modes.
Summary of the invention:
The purpose of this utility model, model utility provide a kind of valve body and seal spool structure that can overcome the plunger type high-pressure modulating valve of above-mentioned deficiency.
The utility model is to adopt such technological scheme to realize:
A kind of valve body of plunger type high-pressure modulating valve and seal spool structure comprise plunger type straight journey spool, and spool is arranged in the valve body, valve body with spool radial fit face on be provided with seal groove, seal ring is arranged in the groove, described seal ring is spring-actuated seal ring.
Described spring-actuated seal ring has a ring-type matrix made from soft sealing material, have a v-shaped cavity on the end face of ring-type matrix, form an interior sealing lip and an outer seal lip, be pressed into plurality of V shape metallic elastic sheet in the v-shaped cavity, along circumferentially evenly distributing.
Described seal groove is the groove of adjacent both sides opening, is provided with pressing plate at an opening edge of this groove, and pressing plate is with the spring-actuated seal ring shutoff down of seal groove inner opening.
The utility model has the advantages that:
1. seal ring contacts with the spool face, and is stressed even, stable, not easy to wear, reduced friction factor, and resistance to pressure is good, the sealing effect ideal.
2. seal ring is close to valve body and spool respectively under the elastic force effect of self, makes their force balances, can play good compensating action to the deficiency of valve body, spool radial deflection or size error.
3. seal groove is adjacent both sides openings, and is flexible when seal ring dismounting in the groove and maintenance, strengthened the stability that system uses greatly, prolonged the working life of valve.
Description of drawings:
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the sealed structural representation (" O " shape) of existing common plunger type high-pressure modulating valve.
Embodiment:
Referring to Fig. 1: the utility model comprises plunger type straight journey spool 3, and spool 3 is arranged in the valve body 4.Valve body 4 with spool 3 radial fit faces on be provided with seal groove, the sealing groove is the groove of adjacent both sides opening, these adjacent both sides are respectively side and the bases that cooperates with spool 3, in groove, be provided with a spring-actuated seal ring with ring-type matrix 2 made from soft sealing material, on an end face of ring-type matrix 2, have a v-shaped cavity, form an interior sealing lip and an outer seal lip, be pressed into plurality of V shape metallic elastic sheet 5 in the v-shaped cavity, along circumferentially evenly distributing.The opening of this spring-actuated seal ring down, valve body 4 seal grooves are close in its side, spool 3 is close in another side.Like this, contact with spool 3 formation faces, friction factor is low, can be even, stable stressed, wear-resisting, resistance to pressure is good, the sealing effect ideal.
Open lower side at seal groove is provided with pressing plate 1, and this pressing plate 1 is with the spring-actuated seal ring shutoff down of seal groove inner opening.Like this, both changed the monolateral hatch frame of conventional seals groove, kept the firm tessellation of unilateral opening slot again seal ring, it is easy when seal ring is packed into, later replacing and maintenance are also convenient, have strengthened the stability in use of valve system, have also prolonged the working life of valve.
The utility model is when work, spool 3 is done the piston type axially reciprocating in valve body 4, at this moment, spring-actuated seal ring is under the effect of self elastic force, expand in both sides, valve body 4 and spool 3 are close to respectively, makes their force balances, both the deficiency to valve body 4, spool 3 radial deflections or size error can play good compensating action, can produce very excellent reciprocating movement sealing effect again.
Claims (3)
1. the valve body of a plunger type high-pressure modulating valve and seal spool structure, comprise plunger type straight journey spool (3), spool (3) is arranged in the valve body (4), valve body (4) with spool (3) radial fit face on be provided with seal groove, seal ring is arranged in the groove, it is characterized in that: described seal ring is spring-actuated seal ring.
2. the valve body of plunger type high-pressure modulating valve according to claim 1 and seal spool structure, it is characterized in that: described spring-actuated seal ring has a ring-type matrix (2) made from soft sealing material, have a v-shaped cavity on the end face of ring-type matrix (2), form an interior sealing lip and an outer seal lip, be pressed into plurality of V shape metallic elastic sheet (5) in the v-shaped cavity, along circumferentially evenly distributing.
3. the valve body of plunger type high-pressure modulating valve according to claim 1 and seal spool structure, it is characterized in that: described seal groove is the groove of adjacent both sides opening, an opening edge at this groove is provided with pressing plate (1), and pressing plate (1) is with the spring-actuated seal ring shutoff down of seal groove inner opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201765999U CN201487257U (en) | 2009-09-04 | 2009-09-04 | Valve body and plug sealing structure of plunger type high-pressure adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201765999U CN201487257U (en) | 2009-09-04 | 2009-09-04 | Valve body and plug sealing structure of plunger type high-pressure adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487257U true CN201487257U (en) | 2010-05-26 |
Family
ID=42426136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201765999U Expired - Fee Related CN201487257U (en) | 2009-09-04 | 2009-09-04 | Valve body and plug sealing structure of plunger type high-pressure adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487257U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374300A (en) * | 2010-08-10 | 2012-03-14 | 上海阀特流体控制阀门有限公司 | Self-seal hard dual-valve seat of balance-type valve core |
| CN103994243A (en) * | 2014-05-14 | 2014-08-20 | 吴忠仪表有限责任公司 | Novel sealing structure of control valve |
| CN103994242A (en) * | 2014-05-14 | 2014-08-20 | 吴忠仪表有限责任公司 | Axial sealing structure of control valve |
| US9291274B1 (en) | 2001-04-16 | 2016-03-22 | Novatech Holdings Corp. | Valve body and seal assembly |
| CN109630703A (en) * | 2019-01-31 | 2019-04-16 | 中国电建集团上海能源装备有限公司 | A kind of balanced-type valve seal assembly |
-
2009
- 2009-09-04 CN CN2009201765999U patent/CN201487257U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9291274B1 (en) | 2001-04-16 | 2016-03-22 | Novatech Holdings Corp. | Valve body and seal assembly |
| CN102374300A (en) * | 2010-08-10 | 2012-03-14 | 上海阀特流体控制阀门有限公司 | Self-seal hard dual-valve seat of balance-type valve core |
| CN103994243A (en) * | 2014-05-14 | 2014-08-20 | 吴忠仪表有限责任公司 | Novel sealing structure of control valve |
| CN103994242A (en) * | 2014-05-14 | 2014-08-20 | 吴忠仪表有限责任公司 | Axial sealing structure of control valve |
| CN109630703A (en) * | 2019-01-31 | 2019-04-16 | 中国电建集团上海能源装备有限公司 | A kind of balanced-type valve seal assembly |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20160904 |