CN210218750U - Novel high-temperature-resistant ball valve capable of relieving pressure - Google Patents
Novel high-temperature-resistant ball valve capable of relieving pressure Download PDFInfo
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- CN210218750U CN210218750U CN201920444672.XU CN201920444672U CN210218750U CN 210218750 U CN210218750 U CN 210218750U CN 201920444672 U CN201920444672 U CN 201920444672U CN 210218750 U CN210218750 U CN 210218750U
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- valve body
- valve seat
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Abstract
The utility model discloses a novel high temperature resistant and pressure relief ball valve, which comprises a valve rod, a valve body, a valve core, a valve seat and a valve seat ring, wherein the valve core is arranged in a cavity inside the valve body, the valve core rotates in the cavity inside the valve body, the valve seat is arranged between the valve core and the valve body and is attached to the valve core, the valve seat is provided with a valve seat ring at one end of the valve seat far away from the valve core and is fixedly connected with the valve seat relatively, a static sealing element is arranged between the valve seat ring and the valve seat and at the attachment part of the valve body, the static sealing element is made of graphite, a first disc spring is arranged between the valve seat ring at the upstream end and the valve body, a second disc spring is arranged between the valve seat ring at the downstream end and the valve body, the elasticity of the second disc spring is larger than that of the first disc spring, the ball valve is convenient to install, high-temperature resistant and good in sealing performance, besides the abnormally increased pressure in the inner cavity of the valve element can be released, the medium can be only released to the upstream direction of the pipeline.
Description
Technical Field
The utility model belongs to the ball valve field especially relates to a novel ball valve of easy pressure release high temperature resistance.
Background
The ball valve with the larger caliber under special working conditions can normally use a DBB structure or a DIB-2 structure to achieve the effect of preventing the pressure of the middle cavity from rising instantly to bring danger, wherein the ball valve with the DIB-2 structure can ensure that a medium can only be released to the upstream direction of a pipeline besides the abnormally rising pressure of the middle cavity, and the safety is better ensured.
The DIB-2 type structure design which is most commonly used at present utilizes medium force to ensure sealing performance, and the technology is mature. However, for a high-temperature special working condition, the O-shaped ring used in a common structure has limited heat-resisting temperature, a specially-treated high-temperature-resisting O-shaped ring is too expensive, the O-shaped ring plays a role in dynamic sealing in the structure, the timeliness cannot be guaranteed, and the O-shaped ring is easy to damage.
In the application number: 201510436893.9, application date 2015.07.23, entitled: in the patent of ball valve, disclose a ball valve, including the valve body, be equipped with the valve rod in the valve body and with valve rod linkage complex case spheroid, the valve rod linkage is connected with manual actuator, the valve body all is provided with the disk seat that closely laminates with the case spheroid in access passage and outflow channel department, and the disk seat is the L type, and the disk seat is provided with the arrangement hole including the conflict portion that connects gradually and the grafting portion of stretching into the disk seat inside in the valve body, the arrangement downthehole be provided with the elastic component of establishing the connection is supported to the conflict portion of disk seat, is provided with the sealing washer between grafting portion and the valve body, is provided with the recess with the spheroidal junction of case on the disk seat, is.
Disclosure of Invention
The utility model aims at providing a novel ball valve of easy pressure release high temperature resistance in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a but novel ball valve of high temperature resistant pressure release, includes valve rod 2, valve body 3, case 4, disk seat 5, disk seat circle 6, case 4 sets up in 3 internal cavities of valve body, case 4 is rotatory in 3 internal cavities of valve body activities, be equipped with disk seat 5 between case 4 and the valve body 3, disk seat 5 laminating case 4 sets up, the one end that disk seat 5 kept away from case 4 is equipped with disk seat circle 6, disk seat circle 6 and 5 relatively fixed connections of disk seat are equipped with static sealing member 8 with 3 laminating departments of valve body between disk seat circle 6 and the disk seat 5, static sealing member 8 is the graphite material, set up first dish spring 7 between disk seat circle 6 of upper reaches end department and the valve body 3, set up second dish spring 9 between disk seat circle 6 of lower reaches end department and the valve body 3, the elastic force ratio of second dish spring 9 is greater than first dish spring 7.
Preferably, the novel ball valve further comprises a turbine box 1, and the valve body 3 is in control connection with the turbine box 1 through a valve rod 2.
Preferably, the bottom of the valve body 3 is provided with a support leg 10.
Preferably, a shaft sleeve 11 is arranged between the valve rod 2 and the valve body 3.
Preferably, a gland 12 is arranged at the upper end of the valve body 3, and the gland 12 is arranged on the outer wall of the valve rod 2.
The utility model has the advantages that:
this ball valve is easy to assemble, high temperature resistant, and the leakproofness is good, and can let out the valve core intracavity unusual rising pressure beyond, can also guarantee that the medium only can release the pipeline upstream direction.
Drawings
Fig. 1 is a schematic structural view of a novel ball valve with pressure release and high temperature resistance.
Detailed Description
The technical scheme of the utility model is further described with the attached drawings:
the utility model provides a but novel ball valve of high temperature resistant pressure release, includes valve rod 2, valve body 3, case 4, disk seat 5, disk seat circle 6, case 4 sets up in 3 internal cavities of valve body, case 4 is rotatory in 3 internal cavities of valve body activities, be equipped with disk seat 5 between case 4 and the valve body 3, disk seat 5 laminating case 4 sets up, the one end that disk seat 5 kept away from case 4 is equipped with disk seat circle 6, disk seat circle 6 and 5 relatively fixed connections of disk seat are equipped with static sealing member 8 with 3 laminating departments of valve body between disk seat circle 6 and the disk seat 5, static sealing member 8 is the graphite material, set up first dish spring 7 between disk seat circle 6 of upper reaches end department and the valve body 3, set up second dish spring 9 between disk seat circle 6 of lower reaches end department and the valve body 3, the elastic force ratio of second dish spring 9 is greater than first dish spring 7.
In this embodiment, preferably, the novel ball valve further includes a turbine box 1, and the valve body 3 is in control connection with the turbine box 1 through a valve rod 2.
In this embodiment, it is preferable that the bottom of the valve body 3 is provided with a support leg 10.
In this embodiment, preferably, a bushing 11 is disposed between the valve rod 2 and the valve body 3.
In this embodiment, preferably, a gland 12 is arranged at the upper end of the valve body 3, and the gland 12 is arranged on the outer wall of the valve rod 2.
The valve core 4 rotates in the cavity inside the valve body, the valve core 4 is communicated with the valve body 3 when the valve core rotates for a certain angle, a medium flows through the ball valve, and the flow is stopped when the valve core rotates for another angle. When the throttle is closed to the ball valve, because external environment effect, dangerous condition such as pressure increase can appear in the medium of 4 inner chambers of case, this moment, the pressure of increase oppresses disk seat 5, and disk seat 5 compresses first dish spring 7 and second dish spring 9 with disk seat circle 6 under the effect of pressure, and at this moment, do not laminate between disk seat 5 and the case 4, the clearance appears, and then the medium of 4 inner chambers of case can flow the effect that reaches the pressure release. Since the thickness of the second disc spring 9 is larger than the elastic force of the first disc spring 7, the compression distance of the first disc spring 7 is large, and the medium flows out from the upstream end to be decompressed, so that the medium is prevented from leaking to the downstream end.
The joint between the valve seat ring 6 and the valve seat 5 and the valve body 3 is provided with a static sealing element 8, the static sealing element 8 is made of graphite, and the graphite is high-temperature resistant, low in cost and good in performance.
This ball valve avoids the use operating mode and the limitation of temperature of O type circle, has made things convenient for the installation of two formula fixed ball valves (because upstream end spring pretightning force is little, once only presses central point with the ball more easily and puts, the convenient insertion of upper and lower axle). The difficulty in high-temperature conditions and the requirement on the structure of a hard sealing ball valve DIB-2 is well solved.
Finally, it should be noted that:
the skilled person can, with reference to the present disclosure, carry out the method and carry out its application, it being expressly noted that all similar substitutes and modifications apparent to the skilled person are deemed to be included within the present invention. The method and application of the present invention have been described in terms of preferred embodiments, and it will be apparent to those skilled in the art that the techniques of the present invention may be practiced and used without departing from the spirit and scope of the present invention by modifying or otherwise appropriately changing or combining the various methods and applications of the present invention.
Claims (5)
1. The utility model provides a but high temperature resistant novel ball valve of pressure release, includes valve rod (2), valve body (3), case (4), disk seat (5), disk seat circle (6), its characterized in that:
the valve core (4) is arranged in the inner cavity of the valve body (3), the valve core (4) movably rotates in the inner cavity of the valve body (3), a valve seat (5) is arranged between the valve core (4) and the valve body (3), the valve seat (5) is attached to the valve core (4), a valve seat ring (6) is arranged at one end of the valve seat (5) far away from the valve core (4), the valve seat ring (6) is relatively fixedly connected with the valve seat (5), a static sealing element (8) is arranged at the joint of the valve seat ring (6) and the valve seat (5) and the valve body (3), static sealing member (8) are the graphite material, and the upstream end department sets up first dish spring (7) between valve seat circle (6) and valve body (3), and the downstream end department sets up second dish spring (9) between valve seat circle (6) and valve body (3), the elastic force ratio of second dish spring (9) is big than first dish spring (7).
2. The novel high-temperature-resistant pressure-relief ball valve as claimed in claim 1, wherein: the novel ball valve further comprises a turbine box (1), and the valve body (3) is in control connection with the turbine box (1) through a valve rod (2).
3. The novel high-temperature-resistant pressure-relief ball valve as claimed in claim 1, wherein: the bottom of the valve body (3) is provided with a support leg (10).
4. The novel high-temperature-resistant pressure-relief ball valve as claimed in claim 1, wherein: and a shaft sleeve (11) is arranged between the valve rod (2) and the valve body (3).
5. The novel high-temperature-resistant pressure-relief ball valve as claimed in claim 1, wherein: the upper end of the valve body (3) is provided with a gland (12), and the gland (12) is arranged on the outer wall of the valve rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444672.XU CN210218750U (en) | 2019-04-03 | 2019-04-03 | Novel high-temperature-resistant ball valve capable of relieving pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444672.XU CN210218750U (en) | 2019-04-03 | 2019-04-03 | Novel high-temperature-resistant ball valve capable of relieving pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218750U true CN210218750U (en) | 2020-03-31 |
Family
ID=69922383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920444672.XU Expired - Fee Related CN210218750U (en) | 2019-04-03 | 2019-04-03 | Novel high-temperature-resistant ball valve capable of relieving pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218750U (en) |
-
2019
- 2019-04-03 CN CN201920444672.XU patent/CN210218750U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 Termination date: 20210403 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |