CN103591326A - Top entry low temperature ball valve - Google Patents
Top entry low temperature ball valve Download PDFInfo
- Publication number
- CN103591326A CN103591326A CN201310576015.8A CN201310576015A CN103591326A CN 103591326 A CN103591326 A CN 103591326A CN 201310576015 A CN201310576015 A CN 201310576015A CN 103591326 A CN103591326 A CN 103591326A
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- CN
- China
- Prior art keywords
- valve
- valve seat
- spheroid
- outlet
- import
- 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.)
- Pending
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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
- F16K5/06—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
- F16K5/0636—Easy mounting or dismounting means the spherical plug being insertable from the top of the housing
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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
- F16K5/0689—Packings between housing and 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
- 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
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a low temperature ball valve, in particular to a top entry low temperature ball valve. The top entry low temperature ball valve comprises a valve body, a sphere, a valve rod and an actuator, wherein the valve body is provided with an inlet and an outlet, a cavity is formed inside the valve body, the sphere is arranged in the cavity of the valve body, the upper portion of the valve body is fixedly connected with a valve deck through a bolt, one end of the valve rod is connected with the sphere, the other end of the valve rod is connected with the actuator, the actuator drives the sphere to rotate through the valve rod so that the ball valve can be opened or closed, an inlet valve seat is arranged between the inlet of the valve body and the sphere, a single-lip-type seal ring is arranged on the left side of the inlet valve seat, an outlet valve seat is arranged between the outlet of the valve body and the sphere, and a double-lip-type seal ring is arranged on the right side of the outlet valve seat. According to the top entry low temperature ball valve, the unique design of the inlet valve seat and the outlet valve seat is adopted, and the properties of the lip-type seal rings are utilized so that the sealing performance of the top entry low temperature ball valve can be extremely improved; meanwhile, the service life of the valve can also be prolonged.
Description
Technical field
The present invention relates to a kind of cryogenic ball valve, particularly relate to a kind of upper dress formula cryogenic ball valve.
Background technique
So upper-mounting type ball valve can on-line maintenance obtains a large amount of approvals of client in pipeline valve because of it, in low temperature field, upper-mounting type ball valve has obtained client's approval equally, but upper dress formula cryogenic ball valve is due to its special valve seat construction, the sealing reliability of its valve seat and flap is reduced greatly, thereby easily occur potential safety hazard.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical problem to be solved is to provide a kind of upper dress formula cryogenic ball valve of reasonable in design, simple in structure and good seal performance.
For solving the problems of the technologies described above, the technical solution adopted in the present invention: upper dress formula cryogenic ball valve, comprise valve body, spheroid, valve rod and actuator, described valve body has import and outlet, described valve inner is provided with cavity, spheroid is arranged in described valve cavity, the top of described valve body has been bolted to connection valve gap, one end of described valve rod is connected with spheroid, the other end of valve rod is connected with actuator, described actuator drives spheroid to rotate by valve rod, realize the switch of ball valve, between described valve body inlet and spheroid, be provided with import valve seat, in the left side of import valve seat, be provided with single lip-type packing, between described valve outlet place and spheroid, be provided with outlet valve seat, right side at outlet valve seat is provided with double-lipped seal ring.
Between described import valve seat, outlet valve seat and spheroid, be equipped with valve seat necklace, valve seat necklace contacts with spheroid and forms sealing surface, and the top of described valve seat necklace is provided with fixed pressure ring, and described fixed pressure ring is fixed on valve seat necklace on import valve seat and outlet valve seat.
Described valve seat necklace adopts low temperature resistant tetrafluoroethylene PTFE.
In the left end face of described import valve seat, be evenly distributed with valve seat preloading spring.
Described import valve seat and outlet valve seat are equipped with snap ring near a side of spheroid, and described snap ring is fixed on import valve seat and outlet valve seat on valve body.
Described valve rod and execution architecture joint are provided with packing seal structure, and described packing seal structure comprises that filler, filler pressing sleeve and Gland form, and described filler pressing sleeve and Gland are fixed filler.
Described filler comprises tetrafluoroethylene PTFE, metallic shim and butterfly spring, and described tetrafluoroethylene PTFE is arranged on bottom, and the top of described tetrafluoroethylene PTFE is arranged alternately metallic shim and butterfly spring.
The present invention compares with prior art the beneficial effect having: the present invention arranges single lip-type packing in the left side of import valve seat, can guarantee the sealability of inlet's valve seat, even also can reach good sealing effect after a small amount of wearing and tearing, right side at outlet valve seat arranges double-lipped seal ring, double-lipped seal ring can be realized two way sealed, when valve closing, can prevent that medium refluence from entering valve, by the different designs of this turnover valve seat, utilize the performance of lip-type packing, can improve greatly the sealability of upper dress formula cryogenic ball valve, also can improve the working life of valve simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 fills the structural representation of formula cryogenic ball valve in the present invention.
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
Fig. 3 is the partial enlarged drawing at B place in Fig. 1.
Fig. 4 is the partial enlarged drawing at C place in Fig. 2.
Fig. 5 is the structural representation of filler in the present invention.
In figure, 1 is valve body, and 2 is spheroid, and 3 is valve rod, 4 is actuator, and 5 is valve gap, and 6 is import valve seat, and 7 is single lip-type packing, 8 is outlet valve seat, and 9 is double-lipped seal ring, and 10 is valve seat necklace, 11 is fixed pressure ring, and 12 is valve seat preloading spring, and 13 is snap ring, 14 is filler, 141 tetrafluoroethylene, and 142 is metallic shim, 143 is butterfly spring, and 15 is filler pressing sleeve, and 16 is Gland.
Embodiment
As Figure 1-Figure 5, upper dress formula cryogenic ball valve, comprise valve body 1, spheroid 2, valve rod 3 and actuator 4, described valve body 1 has import and outlet, described valve body 1 inside is provided with cavity, spheroid 2 is arranged in described valve body 1 cavity, the top of described valve body 1 has been bolted to connection valve gap 5, one end of described valve rod 3 is connected with spheroid 2, the other end of valve rod 3 is connected with actuator 4, described actuator 4 drives spheroid 2 rotations by valve rod 3, realize the switch of ball valve, between described valve body 1 inlet and spheroid 2, be provided with import valve seat 6, in the left side of import valve seat 6, be provided with single lip-type packing 7, between described valve body 1 outlet port and spheroid 2, be provided with outlet valve seat 8, right side at outlet valve seat 8 is provided with double-lipped seal ring 9.
Between described import valve seat 6, outlet valve seat 8 and spheroid 2, be equipped with valve seat necklace 10, valve seat necklace 10 contacts with spheroid 2 and forms sealing surface, the top of described valve seat necklace 10 is provided with fixed pressure ring 11, and described fixed pressure ring 11 is fixed on valve seat necklace 10 on import valve seat 6 and outlet valve seat 8; The mode of this fixed valve base necklace without roll extrusion, can be good at fixed valve base necklace and can have good sealability.
Described valve seat necklace 10 adopts low temperature resistant tetrafluoroethylene PTFE.
In the left end face of described import valve seat 6, be evenly distributed with valve seat preloading spring 12.
Described import valve seat 6 and outlet valve seat 8 are equipped with snap ring 13 near a side of spheroid 2, and described snap ring 13 is fixed on import valve seat 6 and outlet valve seat 8 on valve body 1; Better valve seat is fixed on above valve body, keeps stability and the sealability of valve seat.
Described valve rod 3 is provided with packing seal structure with execution architecture 4 joints, and described packing seal structure comprises that filler 14, filler pressing sleeve 15 and Gland 16 form, and described filler pressing sleeve 15 is fixed filler with Gland 16.
Described filler 14 comprises tetrafluoroethylene 141, metallic shim 142 and butterfly spring 143, and described tetrafluoroethylene 141 is arranged on bottom, and the top of described tetrafluoroethylene 141 is arranged alternately metallic shim 142 and butterfly spring 143; This special filler can either keep good sealability also can guarantee the intensity of filler, thereby improves the working life of filler.
The present invention arranges single lip-type packing in the left side of import valve seat, can guarantee the sealability of inlet's valve seat, even also can reach good sealing effect after a small amount of wearing and tearing, right side at outlet valve seat arranges two lip-type packings, two lip-type packings can realize two way sealed, when valve closing, can prevent that medium refluence from entering valve, by the different designs of this turnover valve seat, utilize the performance of lip-type packing, can improve greatly the sealability of upper dress formula cryogenic ball valve, also can improve the working life of valve simultaneously.
By reference to the accompanying drawings embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from aim of the present invention, makes various variations.
Claims (7)
1. on, fill formula cryogenic ball valve, comprise valve body (1), spheroid (2), valve rod (3) and actuator (4), described valve body (1) has import and outlet, described valve body (1) inside is provided with cavity, spheroid (2) is arranged in described valve body (1) cavity, the top of described valve body (1) has been bolted to connection valve gap (5), one end of described valve rod (3) is connected with spheroid (2), the other end of valve rod (3) is connected with actuator (4), described actuator (4) drives spheroid (2) rotation by valve rod (3), realize the switch of ball valve, it is characterized in that: between described valve body (1) inlet and spheroid (2), be provided with import valve seat (6), in the left side of import valve seat (6), be provided with single lip-type packing (7), between described valve body (1) outlet port and spheroid (2), be provided with outlet valve seat (8), right side at outlet valve seat (8) is provided with double-lipped seal ring (9).
2. upper dress formula cryogenic ball valve according to claim 1, it is characterized in that: between described import valve seat (6), outlet valve seat (8) and spheroid (2), be equipped with valve seat necklace (10), valve seat necklace (10) contacts with spheroid (2) and forms sealing surface, the top of described valve seat necklace (10) is provided with fixed pressure ring (11), and described fixed pressure ring (11) is fixed on valve seat necklace (10) on import valve seat (6) and outlet valve seat (8).
3. upper dress formula cryogenic ball valve according to claim 2, is characterized in that: described valve seat necklace (10) adopts low temperature resistant tetrafluoroethylene PTFE.
4. upper dress formula cryogenic ball valve according to claim 1, is characterized in that: in the left end face of described import valve seat (6), be evenly distributed with valve seat preloading spring (12).
5. upper dress formula cryogenic ball valve according to claim 1, it is characterized in that: described import valve seat (6) and outlet valve seat (8) are equipped with snap ring (13) near a side of spheroid (2), described snap ring (13) is fixed on import valve seat (6) and outlet valve seat (8) on valve body (1).
6. upper dress formula cryogenic ball valve according to claim 1, it is characterized in that: described valve rod (3) is provided with packing seal structure with execution architecture (4) joint, described packing seal structure comprises that filler (14), filler pressing sleeve (15) and Gland (16) form, and described filler pressing sleeve (15) is fixed filler with Gland (16).
7. upper dress formula cryogenic ball valve according to claim 6, it is characterized in that: described filler (14) comprises tetrafluoroethylene (141), metallic shim (142) and butterfly spring (143), described tetrafluoroethylene (141) is arranged on bottom, and the top of described tetrafluoroethylene (141) is arranged alternately metallic shim (142) and butterfly spring (143).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576015.8A CN103591326A (en) | 2013-11-18 | 2013-11-18 | Top entry low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576015.8A CN103591326A (en) | 2013-11-18 | 2013-11-18 | Top entry low temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103591326A true CN103591326A (en) | 2014-02-19 |
Family
ID=50081571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310576015.8A Pending CN103591326A (en) | 2013-11-18 | 2013-11-18 | Top entry low temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103591326A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895175A (en) * | 2018-08-30 | 2018-11-27 | 昆山维萨阀门有限公司 | A kind of metal hard-sealing ball valve |
| CN111706694A (en) * | 2020-07-31 | 2020-09-25 | 湖北泰和石化设备有限公司 | Ultra-low temperature superhigh pressure upper assembling type self-sealing ball valve |
| CN112196754A (en) * | 2020-10-04 | 2021-01-08 | 长春工业大学 | Integrative valve piezoelectric pump based on rhombus mechanism of enlargiing |
| CN113753502A (en) * | 2021-01-30 | 2021-12-07 | 江苏明江阀业有限公司 | Star-shaped rotary valve with split valve cover and brand-new valve rod sealing structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4226406B2 (en) * | 2003-07-28 | 2009-02-18 | 株式会社キッツ | Ball valve |
| CN201517633U (en) * | 2009-10-30 | 2010-06-30 | 苏州纽威阀门有限公司 | Ultra-low temperature ball valve |
| KR20100009478U (en) * | 2009-03-18 | 2010-09-29 | 피케이밸브 주식회사 | seal gasket mechanism of cryogenic ball valve |
| CN102865384A (en) * | 2012-10-09 | 2013-01-09 | 镇江市铸造阀门厂有限公司 | Ultralow-temperature globe valve |
| CN202719179U (en) * | 2012-08-29 | 2013-02-06 | 上海高中压阀门股份有限公司 | Ultra-low temperature ball valve |
| CN203067823U (en) * | 2012-12-31 | 2013-07-17 | 雷蒙德（北京）阀门制造有限公司 | Lip seal double-piston double-blocking-up double-isolating type valve seat |
| CN203272845U (en) * | 2013-05-27 | 2013-11-06 | 超达阀门集团股份有限公司 | Double-piston sealing ball valve |
| CN203560492U (en) * | 2013-11-18 | 2014-04-23 | 交城县鑫升机械有限公司 | Top-entry type low-temperature ball valve |
-
2013
- 2013-11-18 CN CN201310576015.8A patent/CN103591326A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4226406B2 (en) * | 2003-07-28 | 2009-02-18 | 株式会社キッツ | Ball valve |
| KR20100009478U (en) * | 2009-03-18 | 2010-09-29 | 피케이밸브 주식회사 | seal gasket mechanism of cryogenic ball valve |
| CN201517633U (en) * | 2009-10-30 | 2010-06-30 | 苏州纽威阀门有限公司 | Ultra-low temperature ball valve |
| CN202719179U (en) * | 2012-08-29 | 2013-02-06 | 上海高中压阀门股份有限公司 | Ultra-low temperature ball valve |
| CN102865384A (en) * | 2012-10-09 | 2013-01-09 | 镇江市铸造阀门厂有限公司 | Ultralow-temperature globe valve |
| CN203067823U (en) * | 2012-12-31 | 2013-07-17 | 雷蒙德（北京）阀门制造有限公司 | Lip seal double-piston double-blocking-up double-isolating type valve seat |
| CN203272845U (en) * | 2013-05-27 | 2013-11-06 | 超达阀门集团股份有限公司 | Double-piston sealing ball valve |
| CN203560492U (en) * | 2013-11-18 | 2014-04-23 | 交城县鑫升机械有限公司 | Top-entry type low-temperature ball valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895175A (en) * | 2018-08-30 | 2018-11-27 | 昆山维萨阀门有限公司 | A kind of metal hard-sealing ball valve |
| CN111706694A (en) * | 2020-07-31 | 2020-09-25 | 湖北泰和石化设备有限公司 | Ultra-low temperature superhigh pressure upper assembling type self-sealing ball valve |
| CN112196754A (en) * | 2020-10-04 | 2021-01-08 | 长春工业大学 | Integrative valve piezoelectric pump based on rhombus mechanism of enlargiing |
| CN113753502A (en) * | 2021-01-30 | 2021-12-07 | 江苏明江阀业有限公司 | Star-shaped rotary valve with split valve cover and brand-new valve rod sealing structure |
| CN113753502B (en) * | 2021-01-30 | 2022-05-27 | 江苏明江阀业有限公司 | Star-shaped rotary valve with split valve cover and brand-new valve rod sealing structure |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140219 |