CN205047893U - Fixed ball valve of integral type facial make -up low temperature - Google Patents
Fixed ball valve of integral type facial make -up low temperature Download PDFInfo
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- CN205047893U CN205047893U CN201520823291.4U CN201520823291U CN205047893U CN 205047893 U CN205047893 U CN 205047893U CN 201520823291 U CN201520823291 U CN 201520823291U CN 205047893 U CN205047893 U CN 205047893U
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- valve seat
- low temperature
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Abstract
The utility model provides a fixed ball valve of integral type facial make -up low temperature, it includes places spheroid and lower valve rod in valve body, the valve body, be equipped with the disk seat between spheroid and the valve body, valve body upper end fixedly connected with upper cover is equipped with the valve rod in, be the wedge with the sealed face of disk seat complex in the valve body, the spheroid drives disk seat and the cooperation of valve body constitution wedge, the spheroid upper end sets up the elastic component, the elastic component provides and makes the decurrent pretightning force of spheroid, valve rod and lower valve rod provide the fixed axle for the spheroid. The utility model discloses changed the design of traditional valve holder structure, it is various to have solved traditional seat kits part, and the low warm deformation of multiple part differs and seals unstable drawback, and on -line maintenance is more convenient, compared with the rotary -type structure of screw thread, has avoided installing the damage that arouses the screw thread many times, can realize many times on -the -spot dismouting on line, the face structure is sealed to the valve body wedge type, and the disk seat wedging is between valve body scarf and sphere, and the scarf principle makes that the pretightning force is bigger, sealing performance is better.
Description
Technical field
The utility model belongs to valve field, is specifically related to a kind of integral type fills low temperature fixing ball valve.
Background technique
Along with world's new energy are widely used, domestic also at continuous development & application, as cryogenic medias such as LNG Liquefied natural gas, liquid ethylene, liquid oxygen, along with these new energy demands grow with each passing day, ball valve is as oil, chemical industry, the industry pipelines such as rock gas cut off the capital equipment of medium, and ultra-low temperature ball valve is immediately also by wilderness demand.
The ultra-low temperature ball valve of domestic project is import substantially, is almost abroad monopolized, domestic also in continuous development, but upper dress formula ultralow temperature valve seat of fixed ball valve complex structure seen at present, on-line maintenance difficulty, unstable properties.
Integral type seen at present fills the spheroid of low temperature fixing ball valve ball, in the upper and lower Design Orientation hole of spheroid, in hole, place bearing, upper lower shaft is placed in bearing hole makes ball keep stable at rotary course, but lower shaft hole has tolerance on actual ball, upper lower shaft has tolerance; Accumulated tolerance easily makes spheroid open and close rotation centerline and horizontal line out of plumb, causes sealing surface to be easily out of shape, and moment of torsion increases; For valve component structure, integral type seen at present fills low temperature valve seat of fixed ball valve component part various, seal with graphite or lip-shaped sealed ring between valve seat and valve body and valve seat hole, because valve seat cylindrical, valve body and valve seat hole dimension change with nonmetal sealing variable quantity inconsistent at low temperatures, easily cause leaking, valve will be caused to occur interior leakage; Mounting type ultralow temperature seen at present filling formula valve seat of fixed ball valve is screw thread rotation type structure, and this structure screw thread rotation difficulty, being dismounted for multiple times, screw thread easily damages.
Model utility content
In order to solve above deficiency, the utility model provides in integral type and fills low temperature fixing ball valve.
The utility model provides: a kind of integral type fills low temperature fixing ball valve, it comprises valve body, spheroid and lower valve rod is placed in valve body, be provided with valve seat between described spheroid and valve body, described valve body upper end is fixedly connected with upper cover, is provided with valve rod in upper cover, the sealing surface coordinated with valve seat in described valve body is wedge shape, described spheroid drives valve seat and valve body to form wedge-like engagement, and described spheroid upper end arranges elastic component, and described elastic component provides the pretightening force making spheroid downward.
Described elastic component is spring plank, and described spring plank is set on spheroid, spring plank outer upper and upper caping press fit, and inside described spring plank, downside and the press fit of spheroid top, form a lever.
Described valve seat comprises the valve seat bracing ring being arranged on outer ring and the valve seat lip circle being arranged on valve seat inner ring, and have groove inside valve seat, described valve seat lip circle is arranged in groove, and contacts with the sealing surface of valve body.
Described spheroid realizes location by valve rod and lower valve rod, described valve rod and suitable with upper cap bore, lower valve rod and valve body hole suitable.
The utility model changes the design of conventional valve stand structure, solve conventional valve holder assembly part various, various parts low-temperature deformation differs and seals unstable drawback, and on-line maintenance is convenient, compared with screw thread rotation type structure, avoid the damage of repeatedly installing and causing screw thread, on-the-spot online dismounting can be realized repeatedly; Valve body wedge-type sealing surface structure, valve seat wedging is between valve body wedge surface and sphere, and wedge surface principle makes that pretightening force is larger, sealability is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged diagram at the A place in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in Figure 1, the utility model provides in a kind of integral type and fills low temperature fixing ball valve, it comprises in valve body, valve body places spheroid, valve seat is provided with between described spheroid and valve body, described valve body upper end is fixedly connected with upper cover, and the sealing surface 8 coordinated with valve seat in described valve body is wedge shape, and described spheroid drives valve seat and valve body to form wedge-like engagement, described spheroid upper end arranges elastic component, and described elastic component provides the pretightening force making spheroid downward.
Valve body 1 adopts wedge-type sealing surface structure, provides load to spheroid 2 by elastic component, makes valve seat 3 wedging between valve body wedge surface and sphere, and wedge surface principle makes pretightening force larger, and sealability is better.
And described elastic component is spring plank 4, described spring plank 4 is set on spheroid, spring plank 4 outer upper and upper caping press fit, and inside described spring plank, downside and the press fit of spheroid top, form a lever.
Described valve seat comprises the valve seat bracing ring being arranged on outer ring and the valve seat lip circle being arranged on valve seat inner ring, and have groove inside valve seat, described valve seat lip circle is arranged in groove, and contacts with the sealing surface of valve body.
As shown in Figure 2, valve seat bracing ring 3a is installed in valve seat 3 outer ring; In valve seat 3 rear ends machined grooves, valve seat lip circle 3b is installed, valve seat 3 is placed on spheroid 2, spheroid 2 is loaded by leaf spring 4, valve seat 3 with the effect of spheroid 2 frictional force under load valve body 1, and leaf spring 4 load is also between valve seat 3 groove and valve seat lip circle 3b, provide initial sealing power between valve seat 3 and spheroid 2.Valve seat lip circle 3b lip is promoted under the medium effect of upstream extremity, the wedge-type seal face of lip one side compression valve body 1, another side compression valve seat 3 groove end face, and then make valve seat rear ends form sealing, sealing presses to spheroid 2 with rear valve base 3, makes to seal between valve seat 3 and spheroid 2 more reliable.When in valve body 1, cavity pressure exceeds turnout definite value, middle cavity pressure makes the valve seat lip circle 3b lip in valve seat 3 facing groove close, thus middle cavity pressure is also released, and makes valve Safety performance reliable.
Described spheroid realizes location by valve rod 7 and lower valve rod 6, described valve rod and suitable with upper cap bore, lower valve rod 6 and valve body hole suitable.Spheroid 2 lower end is placed in by lower valve rod 6 in the valve body hole of valve body 1, spheroid 2 upper end is then placed in upper cover 5 by valve rod, and effectively can ensure that spheroid opens and closes rotation centerline and runner horizontal line, switch is steady, even to the active force of valve seat 3, make that valve seal is reliable, the life-span is long.
When mounted, become wedge surface insert structure from the rotary-type structure of conventional threads, avoid the damage of repeatedly installing and causing screw thread, on-the-spot online dismounting can be realized repeatedly, easy to maintenance.Concrete major programme is the driving of spheroid 2, and when spheroid 2 is upwards mentioned by frock, valve seat 3 is disassembled together under the effect of frictional force, and when spheroid 2 loads valve body 1 downwards by frock, valve seat 3 is mounted together under the effect of frictional force.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection domain of the present utility model.
Claims (4)
1. an integral type fills low temperature fixing ball valve, it comprises valve body, spheroid and lower valve rod is placed in valve body, be provided with valve seat between described spheroid and valve body, described valve body upper end is fixedly connected with upper cover, is provided with valve rod in upper cover, it is characterized in that: the sealing surface coordinated with valve seat in described valve body is wedge shape, described spheroid drives valve seat and valve body to form wedge-like engagement, and described spheroid upper end arranges elastic component, and described elastic component provides the pretightening force making spheroid downward.
2. integral type according to claim 1 fills low temperature fixing ball valve, it is characterized in that, described elastic component is spring plank, described spring plank is set on spheroid, spring plank outer upper and upper caping press fit, inside described spring plank, downside and the press fit of spheroid top, form a lever.
3. integral type according to claim 1 fills low temperature fixing ball valve, it is characterized in that, described valve seat comprises the valve seat bracing ring being arranged on outer ring and the valve seat lip circle being arranged on valve seat inner ring, groove is had inside valve seat, described valve seat lip circle is arranged in groove, and contacts with the sealing surface of valve body.
4. integral type according to claim 1 fills low temperature fixing ball valve, it is characterized in that, described spheroid realizes location by valve rod and lower valve rod, described valve rod and suitable with upper cap bore, lower valve rod and valve body hole suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520823291.4U CN205047893U (en) | 2015-10-23 | 2015-10-23 | Fixed ball valve of integral type facial make -up low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520823291.4U CN205047893U (en) | 2015-10-23 | 2015-10-23 | Fixed ball valve of integral type facial make -up low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047893U true CN205047893U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520823291.4U Active CN205047893U (en) | 2015-10-23 | 2015-10-23 | Fixed ball valve of integral type facial make -up low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058505A (en) * | 2018-10-31 | 2018-12-21 | 天津欧通流体控制设备有限公司 | A kind of wedge-type ultralow temperature top mounting ball valve |
| CN109296770A (en) * | 2017-07-25 | 2019-02-01 | 自贡新比隆阀门有限公司 | New fixing ball valve |
-
2015
- 2015-10-23 CN CN201520823291.4U patent/CN205047893U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296770A (en) * | 2017-07-25 | 2019-02-01 | 自贡新比隆阀门有限公司 | New fixing ball valve |
| CN109058505A (en) * | 2018-10-31 | 2018-12-21 | 天津欧通流体控制设备有限公司 | A kind of wedge-type ultralow temperature top mounting ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 1921, Binhai 1st Road, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: Founder Valve Group Co.,Ltd. Address before: Yongjia oubeizhen Wenzhou County of Zhejiang province 325102 city and village Patentee before: FANGZHENG VALVE GROUP Co.,Ltd. |
|
| CP03 | Change of name, title or address |