CN211259712U - Bidirectional hard-to-hard high-temperature sealing rotary ball valve - Google Patents
Bidirectional hard-to-hard high-temperature sealing rotary ball valve Download PDFInfo
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- CN211259712U CN211259712U CN201922400550.3U CN201922400550U CN211259712U CN 211259712 U CN211259712 U CN 211259712U CN 201922400550 U CN201922400550 U CN 201922400550U CN 211259712 U CN211259712 U CN 211259712U
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Abstract
The utility model relates to a two-way hard high temperature seal ball-cock that bumps, belong to a ball-cock valve, which comprises a valve body, the valve plate, the valve rod, disk seat and executor, the valve plate passes through the rotatable setting of disk seat in the valve body, and connect through the valve rod, be equipped with the sealing washer between disk seat and the valve body, the seal assembly that clamping ring and dish spring are constituteed, the valve plate is the dome plate structure, the disk seat is the conical surface structure, make to form reliable hard bump hard line seal structure between valve plate and the disk seat, under the medium effect, contact angle between continuous automatic adjustment disk seat and the valve plate, direction and position, the sealed center of automatic adjustment disk seat and valve plate, and automatic position correction and rotation angle when closing, the sealed effect of valve when two-way pressure-bearing has been guaranteed, and effectively compensatied the wearing and tearing that the valve brought under long-term operation, it is.
Description
Technical Field
The utility model relates to a ball-cock assembly, in particular to two-way hard high temperature seal ball-cock assembly that bumps.
Background
In life, many working conditions are closed and opened in two directions, for example, a valve between a tap water system and a standby pump which stops running is opened automatically under the medium pressure of the system to generate leakage if the two-way valve is not arranged; this is also the case between several water systems due to different pressure differences, which results in a large leakage total and a serious economic loss. In the petrochemical industry, serious leakage can occur between oil, fuel, gas, liquid gas and chemical storage systems, between a pump and a storage system, between a storage system and a production system and the like if a two-way valve is not arranged. Particularly, the leakage of high-temperature toxic and harmful gas and the leakage of chemical toxic and harmful gas are large accidents once occurring, and many accidents all over the country are frightened.
In addition, the gas and liquid media contain a large amount of high-viscosity substances and a large amount of high-hardness solid and foreign substances, the inner wall of the valve body and the valve plate need to be frequently scraped, and the common valve cannot bear impact corrosion of the media for a long time.
Therefore, a two-way valve, especially a liquid-gas multiphase fluid valve which can resist multi-solid high-temperature high-hardness high-viscosity media, is extremely necessary.
SUMMERY OF THE UTILITY MODEL
The technical scheme for realizing the purpose is as follows:
the utility model provides a two-way hard high temperature sealed rotary ball valve that bumps, including valve body, valve rod, valve plate, disk seat, end cover and executor, the valve plate passes through the valve seat and rotatably sets up in the valve body, the upper and lower both ends of valve plate all are through the taper pin connection valve rod, the upper end of valve rod stretches out the valve body and connects the executor, the end cover is located the bottom of valve body, the valve plate is convex ball plate structure and has a sunk surface and an arc convex sphere, the valve seat has a conical surface that is close to the valve plate, the conical surface with the convex sphere forms hard bump hard line seal structure, the valve body an organic whole is equipped with a stair structure, the valve seat floats and sets up between stair structure and valve plate, when the medium along the valve forward or reverse flow, the valve seat floats along the medium flow direction to form sealedly;
the disk seat with be connected with seal assembly between the stair structure, seal assembly including encircle in the high temperature flexible seal circle of disk seat tip, the cover is located the self sealss clamping ring and the connection of sealing washer the dish spring of clamping ring and stair structure, under the pressure effect of executor, dish spring and medium, seal assembly moves at certain within range along the axis direction in the valve body.
Further, the rotation center of the valve plate deviates from the center of the valve rod and deviates from the center of the valve body, and the valve plate is of a double-eccentric structure.
Further, the high-temperature flexible sealing ring is a Super304H metal O-shaped ring filled with inert gas or a high-temperature-resistant reinforced flexible graphite material.
Furthermore, the valve seat protrudes out of the step structure, and when a medium flows reversely, the medium can quickly enter between the valve seat and the step structure along the protruding part to push the valve seat to move towards the valve rod, so that reverse zero leakage is ensured.
Has the advantages that: compared with the prior art, the utility model has the difference that the utility model provides a two-way hard-bumping hard high-temperature sealing rotary ball valve, which comprises a valve body, a valve plate, a valve rod, a valve seat and an actuator, wherein the valve plate is rotatably arranged in the valve body through the valve seat and is connected through the valve rod, a sealing assembly consisting of a sealing ring, a pressing ring and a disc spring is arranged between the valve seat and the valve body, the valve plate is of a convex ball plate structure, the valve seat is of a conical surface structure, so that a reliable hard-bumping hard-line sealing structure is formed between the valve plate and the valve seat, under the action of a medium, the contact angle, the direction and the position between the valve seat and the valve plate can be continuously and automatically adjusted, the sealing centers of the valve seat and the valve plate can be automatically adjusted, the sealing effect of the valve in two-way pressure bearing can be ensured, and the abrasion caused, the sealing acting force between the valve plate and the valve seat is greatly amplified; meanwhile, the device can adapt to a high-temperature environment and has wide applicability; greatly reducing the cost of enterprises.
Drawings
FIG. 1 is a cross-sectional view of a two-way hard-on-hard high temperature sealing rotary ball valve according to a preferred embodiment of the present application.
Fig. 2 is an enlarged partial schematic view of a seal assembly of the present application.
The valve comprises a valve body 1, a step structure 11, a valve rod 2, a valve plate 3, a taper pin 31, a concave surface 32, a convex spherical surface 33, a valve seat 4, an end cover 5, an actuator 6, a sealing assembly 7, a sealing ring 71, a pressing ring 72 and a disc spring 73.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1 and 2, the utility model provides a two-way hard-touch hard high-temperature sealing rotary ball valve, which comprises a valve body 1, a valve rod 2, a valve plate 3, a valve seat 4, an end cover 5 and an actuator 6, wherein the valve plate 3 is rotatably arranged in the valve body 1 through the valve seat 4, the upper end and the lower end of the valve plate 3 are both connected with the valve rod 2 through a taper pin 31, the upper end of the valve rod 2 extends out of the valve body 1 to be connected with the actuator 6, the end cover 5 is arranged at the bottom of the valve body 1, the valve plate 3 is of a convex ball plate structure and is provided with a corresponding concave surface 32 and an arc convex ball surface 33, the valve seat 4 is provided with a conical surface close to the valve plate 3, the conical surface and the convex ball surface 33 form a hard-touch hard-line sealing structure, a step structure 11 is integrally arranged at the position of the valve, when the medium flows along the forward direction or the reverse direction of the valve, the valve seat 4 floats along the flow direction of the medium, so that a seal is formed between the valve seat 4 and the valve plate 3;
the valve seat 4 with be connected with seal assembly 7 between the stair structure 11, seal assembly 7 including encircle in the high temperature flexible seal ring 71, the cover of valve seat 4 tip are located seal ring 71's self sealss clamping ring 72 and connection clamping ring 72 and stair structure 11's dish spring 73, under the pressure effect of executor 6, dish spring 73 and medium, seal assembly 7 is in certain extent along the axis direction in valve body 1 and is struggled.
Preferably, the rotation center of the valve plate 3 is offset from the center of the valve rod 2 and from the center of the valve body 1, and has a double-eccentric structure, and in axial and radial cross sections, when the valve plate is opened, that is, when the medium flows in the forward direction, the medium is forced from the direction of the concave surface 32 to the direction of the convex spherical surface 33, and the projection of the valve plate 3 is smaller and smaller, and gradually retracted, so that the internal resistance can be greatly reduced, and similarly, when the projection of the valve plate 3 is larger and larger, the valve plate is gradually expanded and opened in the reverse direction.
Preferably, the high-temperature flexible sealing ring 71 is a Super304H metal O-ring filled with inert gas or a high-temperature-resistant reinforced flexible graphite material, and can bear high temperature above 650 ℃, so that the applicability is wider.
Preferably, the valve seat 4 protrudes from the step structure 11, and when the medium flows reversely, the medium can rapidly enter between the valve seat 4 and the step structure 11 along the protruding part, so as to push the valve seat 4 to move towards the valve rod 2, and zero leakage of the medium flowing reversely is ensured.
Specifically, when the medium flows along the valve body in the forward direction and the valve is closed, the medium pressure pushes the valve plate to the valve seat, and the valve seat cannot retreat under the action of the step structure of the valve body, so that the valve plate is tightly attached to the valve seat to form forward sealing; when the medium flows reversely along the valve body and the valve is closed, the valve plate is pushed to the valve rod by the medium pressure, matching gaps are formed among the valve rod, the valve plate and the valve body shaft neck, the valve rod deforms to a certain degree, the valve plate leaves the valve seat, and then the valve seat moves under the action of the disc spring and the medium pressure, so that the valve plate is tightly attached and pressed to form reverse sealing.
The convex spherical surface on the valve plate and the conical surface on the valve seat are in the relation of a circle and a tangent line, the angle, the direction and the position of the circle and the tangent line can be continuously and automatically adjusted under the action of a medium, meanwhile, the valve seat can be automatically adjusted and aligned to the sealing center of the valve plate and automatically correct the sealing surface, when the valve is closed, automatic position correction and angle correction are carried out, abrasion caused by the valve seat after long-term operation is made up, the sealing acting force between the valve seat and the valve plate is greatly amplified, the service life of the valve is prolonged, and the enterprise cost is reduced.
The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.
Claims (5)
1. A bidirectional hard-to-touch high-temperature sealing rotary ball valve comprises a valve body, a valve rod, a valve plate, a valve seat, an end cover and an actuator, wherein the valve plate is rotatably arranged in the valve body through the valve seat, the upper end and the lower end of the valve plate are connected with the valve rod through taper pins, the upper end of the valve rod extends out of the valve body to be connected with the actuator, and the end cover is arranged at the bottom of the valve body;
the sealing assembly comprises a high-temperature flexible sealing ring and a sleeve, wherein the high-temperature flexible sealing ring surrounds the end part of the valve seat, the sleeve is arranged on the sealing ring, the sealing ring is self-sealed, and the sealing ring is connected with a disc spring of the step structure.
2. The two-way hard-on-hard high-temperature sealed rotary ball valve of claim 1, characterized in that:
the rotation center of the valve plate deviates from the center of the valve rod and deviates from the center of the valve body, and the valve plate is of a double-eccentric structure.
3. The two-way hard-on-hard high-temperature sealed rotary ball valve of claim 1, characterized in that:
the high-temperature flexible sealing ring is a Super304H metal O-shaped ring filled with inert gas.
4. The two-way hard-on-hard high-temperature sealed rotary ball valve of claim 1, characterized in that:
the high-temperature flexible sealing ring is made of high-temperature-resistant reinforced flexible graphite material.
5. The two-way hard-on-hard high-temperature sealed rotary ball valve of claim 1, characterized in that:
the valve seat protrudes out of the step structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922400550.3U CN211259712U (en) | 2019-12-27 | 2019-12-27 | Bidirectional hard-to-hard high-temperature sealing rotary ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922400550.3U CN211259712U (en) | 2019-12-27 | 2019-12-27 | Bidirectional hard-to-hard high-temperature sealing rotary ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259712U true CN211259712U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922400550.3U Active CN211259712U (en) | 2019-12-27 | 2019-12-27 | Bidirectional hard-to-hard high-temperature sealing rotary ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211259712U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828675A (en) * | 2020-08-07 | 2020-10-27 | 郑州铝都阀门有限公司 | Sealed ball valve that revolves that area locking clamping ring and disk seat can one-way float |
| CN114001172A (en) * | 2021-11-17 | 2022-02-01 | 西诺威阀门控制（苏州）有限公司 | High-temperature metal sealing ball valve |
| CN114278757A (en) * | 2021-12-09 | 2022-04-05 | 无锡斯考尔自动控制设备有限公司 | Top-mounted ball valve |
-
2019
- 2019-12-27 CN CN201922400550.3U patent/CN211259712U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828675A (en) * | 2020-08-07 | 2020-10-27 | 郑州铝都阀门有限公司 | Sealed ball valve that revolves that area locking clamping ring and disk seat can one-way float |
| CN114001172A (en) * | 2021-11-17 | 2022-02-01 | 西诺威阀门控制（苏州）有限公司 | High-temperature metal sealing ball valve |
| CN114278757A (en) * | 2021-12-09 | 2022-04-05 | 无锡斯考尔自动控制设备有限公司 | Top-mounted ball valve |
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