CN203098936U - Spring compensation type low-temperature floating ball valve - Google Patents
Spring compensation type low-temperature floating ball valve Download PDFInfo
- Publication number
- CN203098936U CN203098936U CN 201320061059 CN201320061059U CN203098936U CN 203098936 U CN203098936 U CN 203098936U CN 201320061059 CN201320061059 CN 201320061059 CN 201320061059 U CN201320061059 U CN 201320061059U CN 203098936 U CN203098936 U CN 203098936U
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- sphere
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Abstract
A spring compensation type low-temperature floating ball valve comprises an upstream valve body, a downstream valve body, a sphere and a valve rod, wherein the downstream valve body is fixedly connected with the upstream valve body, and the sphere is installed in a valve cavity formed by the upstream valve body and the downstream valve body. A downstream valve seat attached to the spherical surface of the sphere is arranged on the downstream valve body of the valve cavity, an upstream valve seat attached to the spherical surface of the sphere is arranged on the upstream valve body of the valve cavity, and a disk spring is arranged between the upstream valve seat and the upstream valve body. By utilization of the disk spring arranged between the upstream valve seat and the upstream valve body, the upstream valve seat is attached to the sphere all the time, and even at lower temperature or under the condition that parts deform seriously, good sealing performance of the ball valve can still be kept. The spring compensation type low-temperature floating ball valve is compact and simple in structure and convenient to maintain, the upstream valve seat and the spherical surface of the sphere are in a closed state all the time, the ball valve is not easily washed out by a medium, and when various materials deform due to cold contraction at low temperature, the ball valve can also ensure good sealing performance.
Description
Technical field
The utility model relates to a kind of floating ball valve of cryogenic media, the compensation low temperature floating ball valve of particularly a kind of spring.
Background technique
The spheroid of general floating ball valve floats, and under the pressure medium effect, spheroid can produce certain displacement and be pressed on the sealing surface of outlet end, guarantees the outlet end sealing.But the shrinkage that various material coefficient of thermal expansion rate and same material are produced in prior art distortion is all inequality, and this will cause, and serious leakage appears in normal ball valve under the normal temperature when low temperature, does not reach sealing effect.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, proposes the compensation low temperature floating ball valve of a kind of spring simple in structure, good airproof performance.
The technical problems to be solved in the utility model is to realize by the following technical programs, the compensation low temperature floating ball valve of a kind of spring, the downstream valve body, spheroid and the valve rod that comprise the upstream valve body, be fixedly linked with the upstream valve body, described spheroid is installed in upstream valve body and the formed valve pocket of downstream valve body, be characterized in: on the valve body of the downstream of valve pocket, be provided with the downstream valve seat of fitting with the spheroid sphere, on the valve body of the upstream of valve pocket, be provided with the upstream valve seat of fitting, between upstream valve seat and upstream valve body, be provided with belleville spring with the spheroid sphere.
The technical problems to be solved in the utility model can also come further to realize by the following technical programs, upper fixed at the downstream valve body has valve gap, one end of valve rod links to each other with spheroid, the other end of valve rod passes valve gap and in its end handle is housed, at valve gap and valve body connecting part, downstream lower sealing device is housed, between the top of valve gap and valve rod, upper sealing device is housed.
The technical problems to be solved in the utility model can also come further to realize by the following technical programs, is provided with wear-resistant sleeve between the bottom of valve rod and downstream valve body.
Compared with prior art, the utility model utilization is arranged on the belleville spring between upstream valve seat and the upstream valve body, and the upstream valve seat is fitted with spheroid all the time, even under the situation of low temperature or part gross distortion, also can still guarantee the good of ball valve sealing.The utility model compact structure, simple, easy to maintenance, upstream valve seat and spheroid sphere are in closed state all the time, are difficult for by the medium erosion, and when various material at low temperature shrinkages are out of shape, also can guarantee good sealing property.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the plan view of Fig. 1;
Fig. 4 is the enlarged diagram at I place.
Embodiment
The compensation low temperature floating ball valve of a kind of spring, the downstream valve body 1, spheroid 3 and the valve rod 8 that comprise upstream valve body 2, be fixedly linked with upstream valve body 2, described spheroid 3 is installed in upstream valve body 2 and the downstream valve body 1 formed valve pocket, on the downstream of valve pocket valve body 1, be provided with the downstream valve seat 6 of fitting with spheroid 3 spheres, on the upstream of valve pocket valve body 2, be provided with the upstream valve seat 5 of fitting, between upstream valve seat 5 and upstream valve body 2, be provided with belleville spring 4 with spheroid 3 spheres.Described spheroid 3 is provided with medium channel, the medium channel of spheroid 3 communicate with upstream valve body 2 and downstream valve body 1 and the size of joint identical, can make the open-shut device of spheroid 3 by opening and closing medium channel as ball valve.
Upper fixed at downstream valve body 1 has valve gap 7, one end of valve rod 8 links to each other with spheroid 3, the other end of valve rod 8 passes valve gap 7 and in its end handle 11 is housed, and in valve gap 7 and downstream valve body 1 connecting part lower sealing device is housed, and between the top of valve gap 7 and valve rod 8 upper sealing device is housed; Between the bottom of valve rod 8 and downstream valve body 1, be provided with wear-resistant sleeve 12.Described upper sealing device comprises the Gland 10 that stuffing box packing 9 that is arranged between valve gap 7 and the valve rod 8 and the top that is arranged on valve gap 7 cooperate with stuffing box packing 9, between Gland 10 and stuffing box packing 9, be provided with spring, described stuffing box packing 9 is provided with filler, Packing seat and middle filler, and the material of described stuffing box packing 9 is PTFE (teflon).Described lower sealing device is the valve bonnet seal circle, in order to guarantee the ball valve good sealing property, between upstream valve body 2 and downstream valve body 1 seal ring is housed also, and its material is Expanded graphite.Described spheroid 3 also has compact structure, the characteristics of switch rapidly, described handle 11 is fixed on the top of valve rod 8, handle with sleeve 11, can drive spheroid 3 at the drive lower valve rod 8 of handle 11 and do 0～90 ° rotation around the center of valve rod 8, rotating sphere 3 is closed the medium channel of spheroid 3 and upstream valve body 2 and downstream valve body 1, just can cut off the pipeline medium.In order to guarantee to be arranged on the mounting point of belleville spring 4 between upstream valve seat 5 and the upstream valve body 2, so between belleville spring and upstream valve seat, the adjustment pad is installed also.
Claims (3)
1. compensation low temperature floating ball valve of spring, the downstream valve body, spheroid and the valve rod that comprise the upstream valve body, be fixedly linked with the upstream valve body, described spheroid is installed in upstream valve body and the formed valve pocket of downstream valve body, it is characterized in that: on the valve body of the downstream of valve pocket, be provided with the downstream valve seat of fitting with the spheroid sphere, on the valve body of the upstream of valve pocket, be provided with the upstream valve seat of fitting, between upstream valve seat and upstream valve body, be provided with belleville spring with the spheroid sphere.
2. the compensation low temperature floating ball valve of spring according to claim 1, it is characterized in that: the upper fixed at the downstream valve body has valve gap, one end of valve rod links to each other with spheroid, the other end of valve rod passes valve gap and in its end handle is housed, at valve gap and valve body connecting part, downstream lower sealing device is housed, between the top of valve gap and valve rod, upper sealing device is housed.
3. the compensation low temperature floating ball valve of spring according to claim 2 is characterized in that: be provided with wear-resistant sleeve between the bottom of valve rod and downstream valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061059 CN203098936U (en) | 2013-02-04 | 2013-02-04 | Spring compensation type low-temperature floating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061059 CN203098936U (en) | 2013-02-04 | 2013-02-04 | Spring compensation type low-temperature floating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098936U true CN203098936U (en) | 2013-07-31 |
Family
ID=48850341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320061059 Expired - Lifetime CN203098936U (en) | 2013-02-04 | 2013-02-04 | Spring compensation type low-temperature floating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115164A (en) * | 2013-02-04 | 2013-05-22 | 连云港远洋流体装卸设备有限公司 | Spring compensated type low temperature floating ball valve |
| CN104180012A (en) * | 2014-08-15 | 2014-12-03 | 浙江盾安阀门有限公司 | Elastic compensation non-metallic sealing structure for spherical valve |
-
2013
- 2013-02-04 CN CN 201320061059 patent/CN203098936U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115164A (en) * | 2013-02-04 | 2013-05-22 | 连云港远洋流体装卸设备有限公司 | Spring compensated type low temperature floating ball valve |
| CN104180012A (en) * | 2014-08-15 | 2014-12-03 | 浙江盾安阀门有限公司 | Elastic compensation non-metallic sealing structure for spherical valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |