CN202074069U - High-temperature abrasion-resistant ball valve - Google Patents
High-temperature abrasion-resistant ball valve Download PDFInfo
- Publication number
- CN202074069U CN202074069U CN2011201241613U CN201120124161U CN202074069U CN 202074069 U CN202074069 U CN 202074069U CN 2011201241613 U CN2011201241613 U CN 2011201241613U CN 201120124161 U CN201120124161 U CN 201120124161U CN 202074069 U CN202074069 U CN 202074069U
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- Prior art keywords
- valve
- spring
- valve seat
- spheroid
- valve body
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Abstract
The utility model discloses a high-temperature abrasion-resistant ball valve, which comprises a valve body. Fluid channels are correspondingly arranged on the front portion and the rear portion of the valve body, the middle of the valve body is provided with a valve cavity which communicates the fluid channels on the front portion and the rear portion of the valve body, and a ball body serving as a valve core is arranged in the valve cavity. A valve seat which is in correspondingly sealing match with the ball body is respectively arranged between the valve cavity and the front portion of the valve body and between the valve cavity and the rear portion of the valve body. At least one of the two valve seats is a movable valve seat, and a step hole which extends along the extending direction of the fluid channels is arranged on the inner wall of the valve body at a position corresponding to the movable valve seat. The movable valve seat is correspondingly arranged in the step hole, the bottom of the step hole is provided with a spring which extends along the extending direction of the fluid channels and is used for enabling the movable valve seat to be attached to the ball body, and a gasket is arranged between the spring and the movable valve seat. When the ball body and the valve seat expand at a high temperature, the spring is stressed to be compressed, and the movable valve seat moves along the fluid channels, thereby avoiding the fact the high-temperature expansion affects normal operation of the ball valve.
Description
Technical field
The utility model belongs to the ball valve technical field, particularly a kind of high-temperature wearable ball valve.
Background technique
A kind of high-temperature wearable ball valve is disclosed in notification number is the Chinese utility model patent specification of CN201636374U, valve body and downstream integration valve seat are formed shell in ball valve, front and rear part at shell is provided with the fluid passage, be provided with the valve pocket that is communicated with the fluid passage, front and rear part in valve body lower portion, in valve pocket, be provided with spheroid as spool, the spheroid middle part is provided for being communicated with the connecting passage of fluid passage, front and rear part, valve rod is located in the mesopore on valve body top, the valve rod upper end connects with drive unit, its lower end connects with spheroid in being arranged on valve pocket, spheroid central axis around valve rod under the effect of valve rod rotates, on valve body, be embedded with upstream valve seat and flexible graphite packing in spheroid one side, and at the upstream valve seat, metalizing sealing on the formed sealing pair of downstream integration valve seat and spheroid, improve the sealing pair surface hardness, prolong the working life of ball valve.
But because the operating temperature of high-temperature wearable ball valve is higher, seal request is tighter, and existing high-temperature wearable ball valve adopt as metallic seals such as Tungsten carbite or nickel-base alloys between spheroid and valve seat more, thereby guarantee ball valve reliable sealing under all temps and pressure, make metal hard-sealing can be applicable to most harsh working conditions.But a sealing pair in the both sides sealing pair that matches with spheroid in above-mentioned high-temperature wearable ball valve is that the integrated valve seat in spheroid and downstream is formed, another sealing pair is spheroid and upstream valve seat composition, the upstream valve seat is fixed on the valve body, the valve seat of forming sealing pair is all fixed like this, make under high-temperature condition because elevated temperature heat expands and causes that easily spheroid and valve seat rise extremely, thereby cause the ball valve can't regular event, reduce the working life of ball valve.
The model utility content
The purpose of this utility model is to provide a kind of high-temperature wearable ball valve, causes spheroid and the valve seat dead technical problem that rises to solve in the prior art because of elevated temperature heat expands.
For achieving the above object, the utility model adopts following technological scheme: a kind of high-temperature wearable ball valve, comprise valve body, the front and rear part correspondence of valve body be provided with the fluid passage, be provided with the valve pocket that is communicated with fluid passage, valve body front and rear part at the valve body middle part, in valve pocket, be provided with spheroid as spool, respectively be provided with between the fluid passage that the front and rear part of described valve pocket and valve body is provided with one with the corresponding valve seat that is sealed and matched of spheroid, having a valve seat in described two valve seats at least is movable valve seat, on valve interior wall, be provided with the step hole that longshore current body passage bearing of trend extends with movable valve seat opposite position place, being slidedly assemblied in the described step hole of movable valve seat correspondence, be provided with the extension of longshore current body passage bearing of trend in the bottom of step hole and be used to make movable valve seat to be adjacent to the spring of spheroid, between spring and movable valve seat, be provided with pad.
The bottom of described step hole is provided with the spring chamber that longshore current body passage bearing of trend extends, being arranged in the spring chamber of described spring correspondence.
Described spring is provided with a plurality of, and described and spring corresponding spring chamber are around the circumferential arrangement of step hole.
Described spring is provided with one, and described and spring corresponding spring chamber are the annular groove with the coaxial setting of step hole.
Described pad is a spherical pad, and the plane side of this spherical pad cooperates with the spring roof pressure, and corresponding side with spherical pad is provided with round platform portion on the movable valve seat, corresponding being sealed and matched of sphere side of the outer circumferential face of round platform portion and spherical pad.
Described wear resistance ball valve also comprises the valve rod that is arranged on valve body top, the upper end of valve rod connects with drive unit, its lower end and spheroid top attachment, the opposite position place is provided with the strut coaxial with valve rod in bottom valve body and spheroid, and the bottom of spheroid is sitting in the top of strut.
Described strut is the double-screw bolt of spinning on valve body, and the bottom sphere of spheroid is provided with pit, and the most advanced and sophisticated corresponding roof pressure in the top of described double-screw bolt is in the pit of the bottom of spheroid sphere.
The beneficial effects of the utility model are: the valve seat that cooperates with ball seal in the high-temperature wearable ball valve that this patent provided is movable valve seat, movable valve seat is slidedly assemblied in the step hole of longshore current body passage extension, be provided with longshore current body passage bearing of trend in the bottom of step hole flexible and be used to make movable valve seat to be adjacent to the spring of spheroid, between spring and movable valve seat, be provided with pad, movable valve seat holds out against spheroid under spring action, when spheroid and the expansion of valve seat high temperature, the spring stress compression, movable valve seat longshore current body passage moves, the expansion that compensation spheroid and movable valve seat causes because high temperature expands, thus avoid spheroid and valve seat high temperature to expand causing stuck and influence the proper functioning of ball valve.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model a structural representation;
Fig. 2 is the A place zoomed-in view among Fig. 1;
Fig. 3 is the structural representation of the pad among Fig. 1.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of high-temperature wearable ball valve, comprise valve body and the drive unit 1 that is arranged at valve body top, valve body is formed by main valve body 3 with by the side valve body 8 that is bolted to main valve body one side, the fluid passage that is provided with in the front and rear part of valve body correspondence, the middle part of valve body is provided with the valve pocket 9 that is used to be communicated with anterior fluid passage 10 and fluid passage, rear portion 12, in valve pocket 9, be provided with spheroid 7 as spool, the middle part of spheroid 7 is provided with the connecting passage 13 that can be communicated with anterior fluid passage 10 and fluid passage, rear portion 12, be provided with valve rod 2 at the middle part of valve body, the upper end of valve rod 2 connects with drive unit 1, the top attachment of lower end and spheroid 7, bottom at valve body is provided with strut 11 in opposite position place, the bottom of spheroid, strut is that spinning is fixed on the double-screw bolt on the valve body in the present embodiment, the corresponding roof pressure in the top of double-screw bolt is on the sphere of spheroid diapire, the top of bolt has the protuberance of taper, the bottom sphere of spheroid 7 is provided with the pit with the corresponding cooperation of taper protuberance of double-screw bolt, respectively be provided with between two ones the fluid passage before and after described valve pocket 9 and the valve body one with the corresponding valve seat that is sealed and matched of spheroid, two valve seats are adjustable movable valve seat 4, on valve interior wall, be provided with the step hole 14 that extends along corresponding fluid passage bearing of trend with movable valve seat 4 opposite position places, being slidedly assemblied in the step hole 14 of movable valve seat 4 correspondences, be provided with the spring chamber 15 that longshore current body passage bearing of trend extends in the bottom of step hole 14, in spring chamber 15, be provided with that longshore current body passage bearing of trend extends and be used to make movable valve seat to be adjacent to the spring 6 of spheroid, spring chamber is a plurality of around circumferentially being evenly equipped with of step hole in the present embodiment, in each spring chamber, be furnished with a spring, between spring and movable valve seat, be provided with pad 5 with movable valve seat corresponding matching, the present embodiment Intermediate gasket is preferably can self-adjusting spherical pad, the plane side of this spherical pad cooperates with the spring roof pressure, corresponding side with spherical pad is provided with round platform portion on the movable valve seat, corresponding being sealed and matched of sphere side of the outer circumferential face of round platform portion and spherical pad.
Spring chamber in the foregoing description also can for around with the annular groove of the coaxial setting of step hole, in annular groove, be furnished with a spring, an end of spring cooperates with the corresponding roof pressure of the plane side of spherical pad with bottom roof pressure cooperation, the other end of annular groove.
Two valve seats in the foregoing description are movable valve seat, and also according to circumstances one of them valve seat is set to movable valve seat, and another valve seat still is set to fixed valve base.
When the high-temperature wearable ball valve work that model utility provided, drive unit 1 drives spheroid 7 by valve rod 2 and rotates in valve pocket, connecting passage on the spheroid 7 is communicated with the fluid passage, front and rear part, fluid normally passes through, when needs cut off fluid, drive unit 1 drives spheroid 7 by valve rod 2 and rotates, and the obstruct section on the spheroid 7 cuts off the fluid passage, front and rear part, finishes the cut-out of convection cell.When ball valve was at high temperature worked, high temperature made spheroid 7 and valve body expand, movable valve seat 4 this moment pressure spring 6 under pressure, thus the expansion of avoiding spheroid and valve body Yin Gaowen to bring causes ball valve to rise extremely.
Claims (7)
1. high-temperature wearable ball valve, comprise valve body, the front and rear part correspondence of valve body be provided with the fluid passage, be provided with the valve pocket that is communicated with fluid passage, valve body front and rear part at the valve body middle part, in valve pocket, be provided with spheroid as spool, respectively be provided with between the fluid passage that the front and rear part of described valve pocket and valve body is provided with one with the corresponding valve seat that is sealed and matched of spheroid, it is characterized in that: having a valve seat in described two valve seats at least is movable valve seat, on valve interior wall, be provided with the step hole that longshore current body passage bearing of trend extends with movable valve seat opposite position place, being slidedly assemblied in the described step hole of movable valve seat correspondence, be provided with the extension of longshore current body passage bearing of trend in the bottom of step hole and be used to make movable valve seat to be adjacent to the spring of spheroid, between spring and movable valve seat, be provided with pad.
2. high-temperature wearable ball valve according to claim 1 is characterized in that: the bottom of described step hole is provided with the spring chamber that longshore current body passage bearing of trend extends, being arranged in the spring chamber of described spring correspondence.
3. high-temperature wearable ball valve according to claim 2 is characterized in that: described spring is provided with a plurality of, and described and spring corresponding spring chamber are around the circumferential arrangement of step hole.
4. high-temperature wearable ball valve according to claim 2 is characterized in that: described spring is provided with one, and described and spring corresponding spring chamber are the annular groove with the coaxial setting of step hole.
5. according to any described high-temperature wearable ball valve in the claim 1 to 4, it is characterized in that: described pad is a spherical pad, the plane side of this spherical pad cooperates with the spring roof pressure, corresponding side with spherical pad is provided with round platform portion on the movable valve seat, corresponding being sealed and matched of sphere side of the outer circumferential face of round platform portion and spherical pad.
6. according to any described high-temperature wearable ball valve in the claim 1 to 4, it is characterized in that: described wear resistance ball valve also comprises the valve rod that is arranged on valve body top, the upper end of valve rod connects with drive unit, its lower end and spheroid top attachment, the opposite position place is provided with the strut coaxial with valve rod in bottom valve body and spheroid, and the bottom of spheroid is sitting in the top of strut.
7. high-temperature wearable ball valve according to claim 6, it is characterized in that: described strut is the double-screw bolt of spinning on valve body, the bottom sphere of spheroid is provided with pit, and the most advanced and sophisticated corresponding roof pressure in the top of described double-screw bolt is in the pit of the bottom of spheroid sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201241613U CN202074069U (en) | 2011-04-25 | 2011-04-25 | High-temperature abrasion-resistant ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201241613U CN202074069U (en) | 2011-04-25 | 2011-04-25 | High-temperature abrasion-resistant ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074069U true CN202074069U (en) | 2011-12-14 |
Family
ID=45112172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201241613U Expired - Fee Related CN202074069U (en) | 2011-04-25 | 2011-04-25 | High-temperature abrasion-resistant ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202074069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526376A (en) * | 2016-02-01 | 2016-04-27 | 无锡智能自控工程股份有限公司 | Dynamic load sealing type two-valve-seat structure of fixed ball-valve |
-
2011
- 2011-04-25 CN CN2011201241613U patent/CN202074069U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526376A (en) * | 2016-02-01 | 2016-04-27 | 无锡智能自控工程股份有限公司 | Dynamic load sealing type two-valve-seat structure of fixed ball-valve |
| CN105526376B (en) * | 2016-02-01 | 2018-02-06 | 无锡智能自控工程股份有限公司 | Fixing ball valve dynamic load closed type bivalve holder structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20140425 |