CN104565422A - Integrated unloading type low-temperature ball valve - Google Patents
Integrated unloading type low-temperature ball valve Download PDFInfo
- Publication number
- CN104565422A CN104565422A CN201310521726.5A CN201310521726A CN104565422A CN 104565422 A CN104565422 A CN 104565422A CN 201310521726 A CN201310521726 A CN 201310521726A CN 104565422 A CN104565422 A CN 104565422A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spool
- stainless steel
- ball
- 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.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0626—Easy mounting or dismounting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to an integrated unloading type low-temperature ball valve which comprises a valve body (12), a valve core (10) and a valve rod (19), wherein the valve core (10) is arranged in the valve body (12); the valve rod (19) is connected with the valve core (10); the integrated unloading type low-temperature ball valve further comprises a stainless steel cylinder structure; the stainless steel cylinder structure comprises a stainless steel cylinder (11), a double-edge butterfly-shaped spring (8) and a spherical sealing ring b (9); the stainless steel cylinder (11) is arranged in the valve body (12); one end face of the stainless steel cylinder (11) is connected with the valve body (12), and the other end of the stainless steel cylinder (11) is hermetically connected with the valve core (10) through the double-edge butterfly-shaped spring (8) and the spherical sealing ring b (9). Compared with the prior art, the integrated unloading type low-temperature ball valve has the advantages of high sealing property, long service life and the like.
Description
Technical field
The present invention relates to ball valve, especially relate to a kind of overall discharging type cryogenic ball valve.
Background technique
General cryogenic ball valve valve body and sealing configuration are made of one formula structure on valve body, namely leave the structure of installing hard seal valve seat or soft seal circle both at home and abroad at present, when being separate type for valve body, on the valve body that size is little, the structure of processing installation sealing is relatively simple, but it is for the valve body processing relatively difficulty of large bore valves, more difficult for integrated valve body structure processing sealing configuration; Subzero valve due to the impact of cryogenic media make valve when opening and closing in also exist and open difficult or close difficult problem, existing solution is the length of extension valve rod, reduce cryogenic media and upload the unlatching or closedown that affect valve along valve rod, the overall dimension of valve body can be made like this to strengthen.That easily producing fatigue deformation in working procedure, is the one of the main reasons of valve leaks, is problem demanding prompt solution by the effect of individual event pulsating force from the Sealing of the stressed at present a large amount of cryogenic ball valve used of ball valve sealing.
Summary of the invention
Object of the present invention is exactly provide to overcome defect that above-mentioned prior art exists that a kind of valve is reliable, the overall discharging type cryogenic ball valve of extended life seal.
Object of the present invention can be achieved through the following technical solutions: a kind of overall discharging type cryogenic ball valve, comprise valve body, spool, valve rod, described spool is placed in valve body, described valve rod connects spool, it is characterized in that, also comprise stainless steel cylindrical structure, this stainless steel cylindrical structure comprises stainless steel cylinder, bilateral butterfly spring and ball face sealing circle b, described stainless steel cylinder is placed in valve body, one end is connected with valve body, the other end is connected with seal spool with ball face sealing circle b by bilateral butterfly spring, the sealing of seal ring and spool can be controlled by adjusting screw rod when assembling or install, thus avoid process sealing configuration on valve body, reduce difficulty of processing and cost, better sealing effect can also be realized.The stainless steel material that valve body structure adopts its material of monolithic construction to adopt cryogenic property good.
One end face of described stainless steel cylinder has with the tapped hole of valve body end face same size for coordinating with valve body, connected by bolt a, other end has seal groove, bilateral butterfly spring and ball face sealing circle b are placed in seal groove, ball face sealing circle b is close to spool, form sealing configuration, cryogen effectively can be stoped to pass through matching gap between stainless steel sealed cylindrical structure and valve body outwardly, thus realize the sealing that leaks outside of valve body.
Described valve rod overcoat has sleeve, and sleeve top is provided with upper press cover, and upper press cover has butterfly spring a and stuffing box packing, and sleeve bottom is provided with lower cover, and lower cover lid is located on valve body and spool.
Be provided with butterfly spring b and ball face sealing circle a between described lower cover and spool, between ball face sealing circle a and spool, form ball face sealing.Butterfly spring and ball face sealing circle is increased between gland structure and valve core structure, ball face sealing is formed between seal ring and spool, this structure effectively can stop cryogen medium and the valve stem contacts of valve body die cavity, thus reduce low temperature to the impact of valve rod, final realization reduces the detrimental effect of cryogenic media to valve opening and closedown, reduces the length of Subzero valve overall dimensions such as valve rod.
Described spool is the sphere core structure that double end cylinder and sphere combine, double end cylinder coordinates with valve body bottom outlet and lower cover respectively to be installed, eliminate fluid to sealing configuration pressure, make by the seal loading of valve even, suitable for low temperature environment, reduces the impact of low temperature on valve opening and closedown simultaneously.Upper end has groove and matches with valve rod, carries out switching manipulation for connecting valve rod.
Described valve stem top is provided with handle, and is fixed by gland nut.
Described sleeve top connects upper press cover by bolt c, and bottom connects lower cover by bolt b, and is provided with planar seal ring b in joint, and the joint of lower cover and valve body is provided with planar seal ring a.
Described valve body structure is integrated type, makes plane shape installing the round ingress of spool, and has after screw makes it match with lower cover institute perforate and be bolted; A borehole structure matched with stainless steel outside diameter of cylinder is opened in valve body both sides, and both ends of the surface have tapped hole, is convenient to install.Body base processing circular hole coordinates with sphere core, and the external force that spool is subject to is passed on valve body.
Valve of the present invention cryogenic media when complete opening state flows fast through valve by spool, due to have in valve body the sealing configuration at spool and gland place make cryogenic media not with valve stem contacts, therefore less to the cold service of valve rod; In valve body opening and closing process, a cryogenic media part is flow through by spool, and another part is stayed in spool and valve body, but owing to there is above-mentioned sealing configuration, and cryogenic media can not valve stem contacts, little to the cold service of valve rod equally; Because the seal action between seal ring and spool flows through without medium when valve body is in buttoned-up status, cryogenic media is also less on the impact of valve rod in this case.In the whole working procedure of valve, complete seal action when can realize valve closing by the seal action of spool and seal ring, the sealing formed by gland and spool can effectively stop cryogen medium and valve stem contacts, reduces the low temperature effect to it.
Compared with prior art, beneficial effect of the present invention is:
(1), when assembling or install can be controlled the sealing of seal ring and spool by adjusting screw rod, thus avoid process sealing configuration on valve body, reduce difficulty of processing and cost, better sealing effect can also be realized.The stainless steel material that valve body structure adopts its material of monolithic construction to adopt cryogenic property good.
(2) between gland structure and valve core structure, increase butterfly spring and ball face sealing circle, ball face sealing is formed between seal ring and spool, this structure effectively can stop cryogen medium and the valve stem contacts of valve body die cavity, thus reduce low temperature to the impact of valve rod, final realization reduces the detrimental effect of cryogenic media to valve opening and closedown, reduces the length of Subzero valve overall dimensions such as valve rod.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is A portion enlarged view.
Identify in figure: 1, handle, 2, upper press cover, 3, butterfly spring a, 4, stuffing box packing, 5, butterfly spring b, 6, ball face sealing circle a, 7, fixing bolt, 8, bilateral butterfly spring, 9, ball face sealing circle b, 10, spool, 11, stainless steel cylinder, 12, valve body, 13, bolt a, 14, ball face sealing circle c, 15, planar seal ring a, 16, gland, 17, planar seal ring b, 18, bolt b, 19, valve rod, 20, stem sleeve, 21, bolt c, 22, gland nut.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, a kind of overall discharging type cryogenic ball valve, comprise valve body 12, spool 10, valve rod 19, described spool 10 is placed in valve body 12, ball face sealing circle c14 is provided with between valve body 12 and spool 10, described valve rod 19 connects spool 10, also comprise stainless steel cylindrical structure, this stainless steel cylindrical structure comprises stainless steel cylinder 11, bilateral butterfly spring 8 and ball face sealing circle b9, described stainless steel cylinder 11 is placed in valve body 12, one end has with the tapped hole of valve body 12 end face same size for coordinating with valve body 12, connected by bolt a13, other end has seal groove, bilateral butterfly spring 8 and ball face sealing circle b9 are placed in seal groove, ball face sealing circle b9 is close to spool 10, form sealing configuration, cryogen can be effectively stoped to pass through matching gap between stainless steel sealed cylindrical structure and valve body outwardly, thus realize the sealing that leaks outside of valve body.
The sealing of seal ring and spool can be controlled when assembling or install by adjusting screw rod, thus avoid process sealing configuration on valve body, reduce difficulty of processing and cost, better sealing effect can also be realized.The stainless steel material that valve body structure adopts its material of monolithic construction to adopt cryogenic property good.
Described valve rod 19 overcoat has sleeve 20, and sleeve 20 top is provided with upper press cover 2, and upper press cover 2 has butterfly spring a3 and stuffing box packing 4, is provided with lower cover 16 bottom sleeve 20, and lower cover 16 lid is located on valve body and spool.Be provided with butterfly spring b5 and ball face sealing circle a6 between described lower cover 16 and spool 10, between ball face sealing circle a6 and spool 10, form ball face sealing.Butterfly spring and ball face sealing circle is increased between gland structure and valve core structure, ball face sealing is formed between seal ring and spool, this structure effectively can stop cryogen medium and the valve stem contacts of valve body die cavity, thus reduce low temperature to the impact of valve rod, final realization reduces the detrimental effect of cryogenic media to valve opening and closedown, reduces the length of Subzero valve overall dimensions such as valve rod.
Described spool 10 is the sphere core structure that double end cylinder and sphere combine, double end cylinder coordinates with valve body 12 bottom outlet and lower cover 16 respectively to be installed, eliminate fluid to sealing configuration pressure, make by the seal loading of valve even, suitable for low temperature environment, reduces the impact of low temperature on valve opening and closedown simultaneously.Upper end has groove and matches with valve rod, carries out switching manipulation for connecting valve rod.
Described valve rod 19 top is provided with handle 1, and is fixed by gland nut 22.
Described sleeve 20 top connects upper press cover 2 by bolt c21, and bottom connects lower cover 16 by bolt b18, and is provided with planar seal ring b17 in joint, and lower cover 16 is connected by fixing bolt 7 with valve body, and is provided with planar seal ring a15 in joint.
Described valve body structure is integrated type, makes plane shape installing the round ingress of spool, and has after screw makes it match with lower cover institute perforate and be bolted; A borehole structure matched with stainless steel outside diameter of cylinder is opened in valve body both sides, and both ends of the surface have tapped hole, is convenient to install.Body base processing circular hole coordinates with sphere core, and the external force that spool is subject to is passed on valve body.
Valve working principle: valve cryogenic media when complete opening state flows fast through valve by spool, due to have in valve body the sealing configuration at spool and gland place make cryogenic media not with valve stem contacts, therefore less to the cold service of valve rod; In valve body opening and closing process, a cryogenic media part is flow through by spool, and another part is stayed in spool and valve body, but owing to there is above-mentioned sealing configuration, and cryogenic media can not valve stem contacts, little to the cold service of valve rod equally; Because the seal action between seal ring and spool flows through without medium when valve body is in buttoned-up status, cryogenic media is also less on the impact of valve rod in this case.In the whole working procedure of valve, complete seal action when can realize valve closing by the seal action of spool and seal ring, the sealing formed by gland and spool can effectively stop cryogen medium and valve stem contacts, reduces the low temperature effect to it.
Claims (8)
1. an overall discharging type cryogenic ball valve, comprise valve body (12), spool (10), valve rod (19), described spool (10) is placed in valve body (12), described valve rod (19) connects spool (10), it is characterized in that, also comprise stainless steel cylindrical structure, this stainless steel cylindrical structure comprises stainless steel cylinder (11), bilateral butterfly spring (8) and ball face sealing circle b (9), described stainless steel cylinder (11) is placed in valve body (12), one end is connected with valve body (12), the other end is tightly connected with spool (12) by bilateral butterfly spring (8) and ball face sealing circle b (9).
2. the overall discharging type cryogenic ball valve of one according to claim 1, it is characterized in that, one end face of described stainless steel cylinder (11) has and is used for coordinating with valve body (12) with the tapped hole of valve body (12) end face same size, other end has seal groove, bilateral butterfly spring (8) and ball face sealing circle b (9) are placed in seal groove, ball face sealing circle b (9) is close to spool (10), forms sealing configuration.
3. the overall discharging type cryogenic ball valve of one according to claim 1, it is characterized in that, described valve rod (19) overcoat has sleeve (20), sleeve (20) top is provided with upper press cover (2), upper press cover (2) has butterfly spring a (3) and stuffing box packing (4), sleeve (20) bottom is provided with lower cover (16), and lower cover (16) lid is located on valve body and spool.
4. the overall discharging type cryogenic ball valve of one according to claim 3, it is characterized in that, be provided with butterfly spring b (5) and ball face sealing circle a (6) between described lower cover (16) and spool (10), between ball face sealing circle a (6) and spool (10), form ball face sealing.
5. the overall discharging type cryogenic ball valve of the one according to claim 1 or 3, it is characterized in that, the sphere core structure that described spool (10) combines for double end cylinder and sphere, double end cylinder coordinates with valve body (12) bottom outlet and lower cover (16) respectively to be installed.
6. the overall discharging type cryogenic ball valve of one according to claim 1, is characterized in that, described valve rod (19) top is provided with handle (1), and is fixed by gland nut (22).
7. the overall discharging type cryogenic ball valve of one according to claim 1, it is characterized in that, described sleeve (20) top connects upper press cover (2) by bolt c (21), bottom connects lower cover (16) by bolt b (18), and planar seal ring b (17) is provided with in joint, lower cover (16) is provided with planar seal ring a (15) with the joint of valve body.
8. the overall discharging type cryogenic ball valve of one according to claim 1, it is characterized in that, described valve body (12) structure is integrated type, make plane shape in the round ingress of installing spool (10), and have after screw makes it match with lower cover (16) institute perforate and be bolted; A borehole structure matched with stainless steel cylinder (11) external diameter is opened in valve body (12) both sides, both ends of the surface have tapped hole, processing circular hole in valve body (12) bottom coordinates with sphere core (10), and the external force that spool is subject to is passed on valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310521726.5A CN104565422B (en) | 2013-10-29 | 2013-10-29 | A kind of entirety discharging type cryogenic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310521726.5A CN104565422B (en) | 2013-10-29 | 2013-10-29 | A kind of entirety discharging type cryogenic ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104565422A true CN104565422A (en) | 2015-04-29 |
| CN104565422B CN104565422B (en) | 2018-05-18 |
Family
ID=53082170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310521726.5A Active CN104565422B (en) | 2013-10-29 | 2013-10-29 | A kind of entirety discharging type cryogenic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565422B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299307A (en) * | 2015-11-18 | 2016-02-03 | 胡和萍 | Hydraulic pump switching valve for industrial excavator |
| CN105889549A (en) * | 2016-06-12 | 2016-08-24 | 盐城市特密封机械制造有限公司 | Thread type ball valve and valve rod |
| CN109780253A (en) * | 2019-03-22 | 2019-05-21 | 吴金龙 | A kind of sealing of air sealed is without friction pneumatic semisphere valve and its control device |
| CN111810665A (en) * | 2020-07-08 | 2020-10-23 | 东莞海特帕沃液压科技有限公司 | Ball valve with valve seat capable of being replaced online |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202998U (en) * | 1985-07-18 | 1986-08-20 | 杭州制氧机厂 | Discharging ball valve |
| CN2222268Y (en) * | 1994-12-06 | 1996-03-13 | 张俊中 | Ball valve |
| KR20090079332A (en) * | 2008-01-17 | 2009-07-22 | 주식회사 유엔에스 | Cryogenic top entry type ball valve |
| CN201373167Y (en) * | 2009-02-12 | 2009-12-30 | 王奕彤 | Low temperature ball valve |
| CN101737520A (en) * | 2009-12-25 | 2010-06-16 | 昆山维萨阀门有限公司 | Ultra-low temperature ball valve |
| CN202992241U (en) * | 2012-10-09 | 2013-06-12 | 镇江市铸造阀门厂有限公司 | Ultra-low temperature ball valve |
-
2013
- 2013-10-29 CN CN201310521726.5A patent/CN104565422B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202998U (en) * | 1985-07-18 | 1986-08-20 | 杭州制氧机厂 | Discharging ball valve |
| CN2222268Y (en) * | 1994-12-06 | 1996-03-13 | 张俊中 | Ball valve |
| KR20090079332A (en) * | 2008-01-17 | 2009-07-22 | 주식회사 유엔에스 | Cryogenic top entry type ball valve |
| CN201373167Y (en) * | 2009-02-12 | 2009-12-30 | 王奕彤 | Low temperature ball valve |
| CN101737520A (en) * | 2009-12-25 | 2010-06-16 | 昆山维萨阀门有限公司 | Ultra-low temperature ball valve |
| CN202992241U (en) * | 2012-10-09 | 2013-06-12 | 镇江市铸造阀门厂有限公司 | Ultra-low temperature ball valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299307A (en) * | 2015-11-18 | 2016-02-03 | 胡和萍 | Hydraulic pump switching valve for industrial excavator |
| CN105889549A (en) * | 2016-06-12 | 2016-08-24 | 盐城市特密封机械制造有限公司 | Thread type ball valve and valve rod |
| CN109780253A (en) * | 2019-03-22 | 2019-05-21 | 吴金龙 | A kind of sealing of air sealed is without friction pneumatic semisphere valve and its control device |
| CN111810665A (en) * | 2020-07-08 | 2020-10-23 | 东莞海特帕沃液压科技有限公司 | Ball valve with valve seat capable of being replaced online |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104565422B (en) | 2018-05-18 |
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