CN202418647U - Two-stage balanced hard/soft-sealed minimum flow valve - Google Patents
Two-stage balanced hard/soft-sealed minimum flow valve Download PDFInfo
- Publication number
- CN202418647U CN202418647U CN 201120563789 CN201120563789U CN202418647U CN 202418647 U CN202418647 U CN 202418647U CN 201120563789 CN201120563789 CN 201120563789 CN 201120563789 U CN201120563789 U CN 201120563789U CN 202418647 U CN202418647 U CN 202418647U
- Authority
- CN
- China
- Prior art keywords
- valve
- hard
- soft
- valve core
- seal
- 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
Links
Images
Abstract
The utility model discloses a two-stage balanced hard/soft-sealed minimum flow valve. The two-stage balanced hard/soft-sealed minimum flow valve comprises a valve base, a disc assembly, a guiding sleeve, a valve core assembly and a valve rod which are fixed in a sealing way, wherein the valve core assembly is arranged in the middle of the valve base and the sleeve and comprises a gland, a large valve core, a hard-sealed valve flap and a spring which are connected in a sealing way; the upper part of the hard-sealed valve flap is positioned inside the lower part of the large valve core; an elastic energy storing ring is arranged between the large valve core and the guiding sleeve; an elastic energy storing ring is arranged between the hard-sealed valve flap and large valve core; an elastic energy storing ring is arranged among the lower end of the gland, the upper end of the large valve core and the guiding sleeve; the outer side of the lower part of the hard-sealed valve flap presses against the inner side of the upper part of the valve base to form a hard sealing surface; soft sealing components are arranged between the valve base and the bottoms of the disc assembly and the large valve core; and balancing holes are formed in the large valve core and the hard-sealed valve flap. The two-stage balanced hard/soft-sealed minimum flow valve is more scientific and perfect in structure, has the characteristics of four soft and hard sealing surfaces and two-stage sealing, can effectively ensure the sealing performance, is balanced and can greatly reduce the thrust of the valve.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of twin-stage balanced type soft and hard seal minimum flow valve.
Background technique
Existing Flow valve; Generally valve seat is set below valve body all, disc devices is set on the valve seat, the disc devices top is provided with gland; And disc devices is inner and gland inside is provided with spool; Valve core inside is provided with valve rod, and spool bottom seals face contacts with valve seat top seal face or breaks away from, and then closes or Open valve.And be hard sealing between spool bottom and the valve seat top, single be sealed in firmly to understand after the long-time use cavitate, wash away etc., can not guarantee its sealability, influence the working life of Flow valve.In addition, very big for the desired seal pressure of the valve of hard sealing, to having relatively high expectations of actuator, increase cost, particularly for bigbore valve, actuator is required very harshness, even can't reach.
Summary of the invention
The utility model is accomplished in order to solve deficiency of the prior art; The purpose of the utility model provides more science and perfect of a kind of structure; Has the sealing of soft or hard four road sealing surfaces and two-stage; Effectively guaranteeing sealing, is balanced type simultaneously, reduces the twin-stage balanced type soft and hard seal minimum flow valve of the thrust of valve greatly.
A kind of twin-stage balanced type soft and hard seal minimum flow valve of the utility model; The valve seat, disc devices, pilot sleeve, mangetic core assembly and the valve rod that comprise sealing and fixing; Said mangetic core assembly is arranged at said valve seat and said sleeve central authorities; Said mangetic core assembly comprise the gland that is tightly connected, above big valve core, below hard sealing flap and the spring between said big valve core and said hard sealing flap; Said hard sealing flap top is positioned at said big valve core bottom, and elasticity accumulation of energy circle is set between said big valve core and the said pilot sleeve, and elasticity accumulation of energy circle is set between said hard sealing flap and the said big valve core; Elasticity accumulation of energy circle is set between the upper end of said gland lower end and said big valve core and the said pilot sleeve; The outside, said hard sealing flap bottom contacts with said valve seat upper inner and forms hard sealing surface, and said valve seat and said disc devices and said big valve core bottom are provided with soft seal, on said big valve core, the said hard sealing flap equalizing orifice are set all.
A kind of twin-stage balanced type soft and hard seal minimum flow valve of the utility model can also be:
Said soft seal is the soft seal circle, on the said valve seat groove is set, and said soft seal circle is arranged in the said groove.
The gland of said mangetic core assembly, big valve core, seal the bolt of flap firmly through passing from the bottom to top.
Said spring housing is located on the said bolt, and the upper end of said spring is fixed on the middle part of said big valve core, and the lower end of said spring is fixed on the upper surface of said hard sealing flap.
Be arranged with filter sleeve outside said valve seat middle part and the bottom.
Two-layer filtering hole is set on the said filter sleeve, and said two-layer filtering hole is staggered.
A kind of twin-stage balanced type soft and hard seal minimum flow valve of the utility model; Owing to comprise valve seat, disc devices, pilot sleeve, mangetic core assembly and the valve rod of sealing and fixing; Said mangetic core assembly is arranged at said valve seat and said sleeve central authorities; Said mangetic core assembly comprise the gland that is tightly connected, above big valve core, below hard sealing flap and the spring between said big valve core and said hard sealing flap; Said hard sealing flap top is positioned at said big valve core bottom; Elasticity accumulation of energy circle is set between said big valve core and the said pilot sleeve; Elasticity accumulation of energy circle is set between said hard sealing flap and the said big valve core, elasticity accumulation of energy circle is set between the upper end of said gland lower end and said big valve core and the said pilot sleeve, the outside, said hard sealing flap bottom contacts with said valve seat upper inner and forms hard sealing surface; Said valve seat and said disc devices and said big valve core bottom are provided with soft seal, on said big valve core, the said hard sealing flap equalizing orifice are set all.Like this, the advantage that has in terms of existing technologies is to form hard sealing and soft seal four road sealing surfaces, and having independently simultaneously, the first order seals with the twin-stage that the second level seals; Effectively guaranteed the sealability of Flow valve; And be to seal flap firmly to close earlier when throttle down, soft seal is closed again then, and after soft seal is opened a segment distance earlier when opening; Hard sealing flap is opened again; The influence of avoiding soft seal to be washed away, cavitate, protection soft sealing face, the working life of improving the bulk flow metered valve.And balanced type is all adopted in the twin-stage sealing, and it is zero basically that unbalanced force is reduced to, and reduces the thrust of valve.
Description of drawings
A kind of twin-stage balanced type of Fig. 1 the utility model soft and hard seal minimum flow valve embodiment sectional view.
The figure number explanation
1 ... Valve seat 2 ... Valve rod 3 ... Gland
4 ... Pilot sleeve 5 ... Elasticity accumulation of energy circle 6 ... Equalizing orifice
7 ... Big valve core 8 ... Spring 9 ... Bolt
10 ... Hard sealing flap 11 ... Soft seal circle 12 ... Disc devices
13 ... Filter sleeve
Embodiment
Fig. 1 below in conjunction with accompanying drawing does further explain to a kind of twin-stage balanced type soft and hard seal minimum flow valve of the utility model.
A kind of twin-stage balanced type soft and hard seal minimum flow valve of the utility model; Please refer to Fig. 1; The valve seat 1, disc devices 12, pilot sleeve 4, mangetic core assembly and the valve rod 2 that comprise sealing and fixing; It is central with said sleeve that said mangetic core assembly is arranged at said valve seat 1; Said mangetic core assembly comprise the gland 3 that is tightly connected, above big valve core 7, below hard sealing flap 10 and the spring 8 between said big valve core 7 and said hard sealing flap 10; Said hard sealing flap top is positioned at said big valve core 7 bottoms, and elasticity accumulation of energy circle 5 is set between said big valve core 7 and the said pilot sleeve 4, between said hard sealing flap 10 and the said big valve core 7 elasticity accumulation of energy circle 5 is set; Elasticity accumulation of energy circle 5 is set between the upper end of said gland 3 lower ends and said big valve core 7 and the said pilot sleeve 4; The said hard sealing flap 10 bottoms outsides contacts with said valve seat 1 upper inner and forms hard sealing surface, and said valve seat 1 is provided with soft seal with said disc devices 12 and said big valve core 7 bottoms, on said big valve core 7, the said hard sealing flap 10 equalizing orifice 6 is set all.During use, during throttle down, valve rod 2 moves down; The drive mangetic core assembly moves down; Hard sealing flap 10 contacts with valve seat 1 at first and forms hard sealing surface, and valve rod 2 continues descending, because the pretightening force effect of spring 8; Hard sealing surface obtains enough impacting forces, to such an extent as to fluid basically can't or a part seldom flow out from hard sealing surface.After hard sealing surface is closed; Fluid can flow into the gap between hard sealing flap 10 and the big valve core 7 from the equalizing orifice 6 of hard sealing flap 10 and flow out; And the elasticity accumulation of energy circle 5 that between hard sealing flap 10 and big valve core 7, is provided with can seal, and stops fluid to flow out; In like manner, the equalizing orifice 6 that fluid also can pass through big valve core 7 flows out from the gap between pilot sleeve 4 and the big valve core 7, and the elasticity accumulation of energy circle 5 that here is provided with can seal.More than be first order sealing.First order sealing can stop fluid basically fully, reaches the requirement that the IV level is leaked among the ASMEB13.104.Yet to minimum flow valve, the sealing grade should reach the above requirement of V level, therefore, designed partial sealing.Second level sealing then is to be sealed by one soft seal on the valve seat 1 and the elasticity accumulation of energy circle 5 Compositional balance formula second level on the pilot sleeve 4.When the first order is sealed with slight leakage, just between the second level and first order sealing, form pressure, at this moment, the effect of sealing is just played in second level sealing.Further guarantee sealing effect.When valve opening; Second level sealing is opened earlier, when partial sealing surface with a certain distance from the soft seal on the valve seat 1 after, the hard sealing surface disengaging of the hard sealing flap 10 in the first order sealing and valve seat 1; At this moment; Valve loses seal action fully, until the valve complete opening, accomplishes the valve opening action.Like this, the advantage that has in terms of existing technologies is to form hard sealing and soft seal two seals face, and having independently simultaneously, the first order seals with the twin-stage that the second level seals; Effectively guaranteed the sealability of Flow valve; And be to seal flap 10 firmly to close earlier when throttle down, soft seal is closed again then, and after soft seal is opened an end distance earlier and left when opening; Hard sealing flap 10 is opened again; Avoid soft seal to be washed away, protection soft sealing face, the working life of improving the bulk flow metered valve.And balanced type is all adopted in the twin-stage sealing, and it is zero basically that unbalanced force is reduced to, and reduces the thrust of valve.
A kind of twin-stage balanced type soft and hard seal minimum flow valve of the utility model; Please refer to Fig. 1; Specifically can be that said soft seal is a soft seal circle 11 in front on the basis of technological scheme, on the said valve seat 1 groove is set, said soft seal circle 11 be arranged in the said groove.The effect of soft seal piece is between valve seat 1 and big valve core 7, to form soft sealing face.Further guarantee sealing effect.Further optimized technical scheme is the gland 3, big valve core 7 of said mangetic core assembly, to seal flap 10 firmly fixing through the bolt 9 that passes from the bottom to top.Further optimized technical scheme is that said spring 8 is set on the said bolt 9, and the upper end of said spring 8 is fixed on the middle part of said big valve core 7, and the lower end of said spring 8 is fixed on the upper surface of said hard sealing flap 10.Certainly can also be other means of fixation, such means of fixation structure be the compactest.
A kind of twin-stage balanced type soft and hard seal minimum flow valve of the utility model please refer to Fig. 1, can also be to be arranged with filter sleeve 13 outside said valve seat 1 middle part and the bottom in front on the basis of technological scheme.Fluid filters through the filter sleeve on the valve seat 1 13 earlier, has prevented that dregs from getting into internals inside, destroys the inner sealing surface of internals; After carrying out multistage step-down and slow down through disc devices 12 then; Flow out valve body, thereby realize the anti-cavitation erosion of valve noise reduction, anti-ly effect such as wash away.When valve was opened for stream, filter sleeve 13 played a role in filtering, and also plays the effect that throttling underspeeds simultaneously.When valve closed for stream, filter sleeve 13 played sound deadening.Further optimized technical scheme is on the said filter sleeve 13 two-layer filtering hole to be set, and said two-layer filtering hole is staggered.Filtering effect is better like this.
Above-mentionedly only several kinds of specific embodiments in the utility model are explained; But can not be as the protection domain of the utility model; Every equivalence variation of having done according to the design spirit in the utility model or modification or equal proportion are amplified or are dwindled etc., all should think the protection domain that falls into the utility model.
Claims (6)
1. twin-stage balanced type soft and hard seal minimum flow valve; It is characterized in that: the valve seat, disc devices, pilot sleeve, mangetic core assembly and the valve rod that comprise sealing and fixing; Said mangetic core assembly is arranged at said valve seat and said sleeve central authorities; Said mangetic core assembly comprise the gland that is tightly connected, above big valve core, below hard sealing flap and the spring between said big valve core and said hard sealing flap; Said hard sealing flap top is positioned at said big valve core bottom; Elasticity accumulation of energy circle is set between said big valve core and the said pilot sleeve; Elasticity accumulation of energy circle is set between said hard sealing flap and the said big valve core, elasticity accumulation of energy circle is set between the upper end of said gland lower end and said big valve core and the said pilot sleeve, the outside, said hard sealing flap bottom contacts with said valve seat upper inner and forms hard sealing surface; Said valve seat and said disc devices and said big valve core bottom are provided with soft seal, on said big valve core, the said hard sealing flap equalizing orifice are set all.
2. a kind of twin-stage balanced type soft and hard seal minimum flow valve according to claim 1, it is characterized in that: said soft seal is the soft seal circle, on the said valve seat groove is set, said soft seal circle is arranged in the said groove.
3. a kind of twin-stage balanced type soft and hard seal minimum flow valve according to claim 2 is characterized in that: the gland of said mangetic core assembly, big valve core, seal the bolt of flap through passing from the bottom to top firmly.
4. a kind of twin-stage balanced type soft and hard seal minimum flow valve according to claim 3; It is characterized in that: said spring housing is located on the said bolt; The upper end of said spring is fixed on the middle part of said big valve core, and the lower end of said spring is fixed on the upper surface of said hard sealing flap.
5. according to the described a kind of twin-stage balanced type soft and hard seal minimum flow valve of any claim of claim 1 to 4, it is characterized in that: be arranged with filter sleeve outside said valve seat middle part and the bottom.
6. a kind of twin-stage balanced type soft and hard seal minimum flow valve according to claim 5, it is characterized in that: two-layer filtering hole is set on the said filter sleeve, and said two-layer filtering hole is staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120563789 CN202418647U (en) | 2011-12-29 | 2011-12-29 | Two-stage balanced hard/soft-sealed minimum flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120563789 CN202418647U (en) | 2011-12-29 | 2011-12-29 | Two-stage balanced hard/soft-sealed minimum flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418647U true CN202418647U (en) | 2012-09-05 |
Family
ID=46743417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120563789 Expired - Fee Related CN202418647U (en) | 2011-12-29 | 2011-12-29 | Two-stage balanced hard/soft-sealed minimum flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418647U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867727A (en) * | 2012-12-14 | 2014-06-18 | 中核苏阀科技实业股份有限公司 | Dual rigidity seal sleeve type regulating valve with flexible structure |
| CN104405908A (en) * | 2014-08-30 | 2015-03-11 | 申宝光 | Valve core component of corrugated pipe type double-base sleeve valve |
| CN107013693A (en) * | 2017-06-16 | 2017-08-04 | 山东益都阀门集团股份有限公司 | A kind of double spool linkage valve |
-
2011
- 2011-12-29 CN CN 201120563789 patent/CN202418647U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867727A (en) * | 2012-12-14 | 2014-06-18 | 中核苏阀科技实业股份有限公司 | Dual rigidity seal sleeve type regulating valve with flexible structure |
| CN103867727B (en) * | 2012-12-14 | 2016-12-21 | 中核苏阀科技实业股份有限公司 | A kind of two pass hard sealing shroud cartridge type regulation valve of flexible structure |
| CN104405908A (en) * | 2014-08-30 | 2015-03-11 | 申宝光 | Valve core component of corrugated pipe type double-base sleeve valve |
| CN107013693A (en) * | 2017-06-16 | 2017-08-04 | 山东益都阀门集团股份有限公司 | A kind of double spool linkage valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102330834B (en) | Electromagnetic valve | |
| CN202418647U (en) | Two-stage balanced hard/soft-sealed minimum flow valve | |
| CN103154562A (en) | Adjustable damping valve device | |
| CN203516886U (en) | Pilot-operated balance valve element of adjusting-type valve | |
| CN203258146U (en) | Sleeve adjusting valve | |
| CN106015439B (en) | Big load Low rigidity velocity profile stopping means | |
| CN101614285B (en) | Ball valve | |
| CN202418891U (en) | Low pressure bypass regulating valve | |
| CN201554869U (en) | Differential-pressure-free full-function valve | |
| CN102563096B (en) | Ultrahigh pressure differential tight cut-off regulating valve | |
| CN103343826B (en) | Non-return valve | |
| CN202418609U (en) | Guiding and sealing valve for valve seat | |
| CN208397378U (en) | A kind of pressure reducing valve | |
| CN102454360B (en) | Hydraulic jet impacter | |
| CN201963895U (en) | Labyrinth-type stop valve | |
| CN203641557U (en) | Double-layer sealing gasket | |
| US20090151799A1 (en) | Check valve | |
| CN206377285U (en) | A kind of cutoff valve with high sealing performance | |
| CN205078814U (en) | Poor guide's balanced type governing valve of silence high pressure | |
| CN200986046Y (en) | Buffering valve used in the time of ultra-high pressure load-off | |
| CN202469014U (en) | Ultrahigh pressure difference tight cutoff adjustment valve | |
| CN203146917U (en) | Sleeve type check valve | |
| CN206988448U (en) | A kind of double spool linkage valve | |
| CN205190882U (en) | Pilot -operated magnetic valve | |
| CN202109041U (en) | Bottom valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215000 Suzhou Lake Industrial Park, Xiangcheng District Economic Development Zone, Jiangsu Patentee after: SUZHOU DELAN ENERGY SCIENCE & TECHNOLOGY CORP., LTD. Address before: Cao Hu Industrial Park of Xiangcheng Economic Development Zone, Suzhou City, Jiangsu province 215000 Patentee before: Suzhou Delan Energy Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |