CN202327193U - Anti-scouring abrasion-resisting ball valve with flow control function - Google Patents
Anti-scouring abrasion-resisting ball valve with flow control function Download PDFInfo
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- CN202327193U CN202327193U CN2011204705094U CN201120470509U CN202327193U CN 202327193 U CN202327193 U CN 202327193U CN 2011204705094 U CN2011204705094 U CN 2011204705094U CN 201120470509 U CN201120470509 U CN 201120470509U CN 202327193 U CN202327193 U CN 202327193U
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- valve
- sealing surface
- ball
- passage
- spheroid
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Abstract
The utility model discloses an anti-scouring abrasion-resisting ball valve with a flow control function, which comprises a valve body. A valve cavity is arranged in the valve body, a flow inlet channel and a flow outlet channel are arranged on two sides of the valve cavity respectively and are communicated with the valve cavity respectively, a valve cover is arranged on one side of the valve body, a valve base is arranged in the valve cavity, a ball body is arranged in the valve base, a valve rod for driving the ball body to rotate is arranged on the ball body, one side of the ball body backing on the channels is a sealing face, the sealing face and the valve base are matched with each other in sealing mode, a circulating channel is arranged in the ball body, the cross section of the circulating channel is of a U-shaped structure, an opening is arranged on one side of the circulating channel, a through hole is arranged on one side of the circulating channel away from the opening, and the through hole is communicated with the sealing face and the circulating channel. The ball valve can control flow, structure design of the ball valve can prevent a medium flowing at high speed from souring and abrading components of the ball body, the valve body and the like of the ball valve, and service life of the ball valve is longer.
Description
Technical field
The utility model relates to a kind of flow control device, is specifically related to a kind of protection against erosion wear resistance ball valve with flow control function.
Background technique
Ball valve is a valve body commonly used in the pipeline; When containing a large amount of hard solid particles in the fluid of pipeline; Usually adopt metal hard-sealing ball valve; Metal hard-sealing ball valve valve seat in the opening and closing process can strike off the solid particle on the ball seal face automatically, and spheroid and valve seat can be fitted tightly, thereby reaches the purpose of reliable sealing.As shown in Figure 5, be the schematic representation of common metal hard-sealing ball valve.Ball valve is as switch valve, and valve generally is in full-gear or complete shut-down state.When ball valve is the complete shut-down state, as long as the spheroid of ball valve fits with sealing surface of seat, good seal performance, fluid will not have mobile, and therefore, fluid can not have valve and washes away and wear and tear at this moment.When ball valve was full-gear, ball valve was equivalent to unobstructed pipeline basically, at this moment; The aisle spare of ball valve is very big, and flow rate of fluid is less, therefore; Fluid is for the wearing and tearing of ball valve and wash away also very for a short time, and under full-gear, ball seal face and sealing surface of seat are fitted; Do not contact, all be in protected state, can not receive washing away of fluid with fluid.Therefore, when metal hard-sealing ball valve only was used for switch, the sealability when needing only valve closing was fine, is in the position of full open during unlatching, even contain a large amount of hard solid particle mediums in the fluid, valve still has good wear-resisting abrasion resistance ability.
Yet some operating mode occasion not only needs valve to carry out switch control, also need come the flow in the controlling plumbing fixtures through valve.As shown in Figure 6, for common metal hard-sealing ball valve is used for the situation of control flow rate, when valve is in some apertures, because dwindling of channel cross-section 1 and cross section 2 can make ducted flow control in some needed scopes.But because dwindling of channel cross-section 1 and channel cross-section 2 causes the rate of flow of fluid at this position to increase greatly, and because the change of runner; Make high-velocity fluid directly be washed into sphere inner wall and valve interior wall, the high speed that has the fluid of hard solid particle is washed away the damage that is easy to cause spheroid A position and valve B position, and the aperture of spheroid is more little; The pressure reduction of fluid is big more; The rate of flow of fluid of ball valve local location is just big more, and valve is washed away damage more easily, when the content of hard solid particle in the fluid is higher; Valve is washed away damage more more easily, and serious situation even several hrs just penetrate the valve body wearing and tearing.Therefore, the common metal hard seal ball valve is not suitable for the flow in the controlling plumbing fixtures.
Summary of the invention
The purpose of the utility model is: to the deficiency of existing technology, the utility model provides a kind of protection against erosion wear resistance ball valve with flow control function.
To achieve these goals, the technological scheme below the utility model has adopted:
A kind of protection against erosion wear resistance ball valve with flow control function comprises valve body, is provided with valve pocket in the valve body; The both sides of valve pocket are respectively equipped with and flow to passage and flow pass, flow to passage and flow pass and are communicated with valve pocket respectively, and a side of valve body is provided with valve gap; Be provided with valve seat in the described valve pocket, be provided with spheroid in the described valve seat, described spheroid is provided with and drives the valve rod that spheroid rotates; A spheroid side of passage dorsad is a sealing surface, and sealing surface and valve base sealing are equipped with, and are provided with circulation passage in the spheroid; The cross section of described circulation passage is U type structure; One side opening of circulation passage, circulation passage is provided with through hole away from a side of opening, described through hole communication seals face and circulation passage.
As preferably; Described valve seat is arranged on the joining place that flows to passage and valve pocket, is provided with passage in the valve seat, and valve seat is provided with the arc sealing surface near a side of ball seal face; Described arc sealing surface and sealing surface are fitted and are provided with, and form the above-mentioned described setting that is sealed and matched.After adopting above-mentioned preferred version; The arc sealing surface of valve seat and ball seal face are fitted, and sealing effect is better, and the sealing surface of arc sealing surface and spheroid generally adopts metal hard sealing surface; Ball valve close or opening process in, automatically the solid particle on the ball seal face is scraped.
As preferably, described valve seat and valve body adopt Expanded graphite to seal, and valve seat is provided with spring away from a side of spheroid, and spring one end and valve seat connect, and the other end and valve body connect.After adopting above-mentioned preferred version; Valve seat and valve body adopt Expanded graphite to seal; Valve seat is provided with spring behind; The pretightening force of spring fits tightly sealing surface of seat and ball seal face all the time, can be not stuck because of the thermal expansion of component when the setting of spring is used valve under different temperature.Spring is generally butterfly spring or cylindrical spring.
As preferably, described valve gap and valve seal are equipped with.After adopting above-mentioned preferred version, improved the sealing effect of ball valve.
As preferably, described through hole and channel side wall are provided with the tilt angle, and described through hole is divided into primary sealing surface and big sealing surface with sealing surface, and the chord length of described big sealing surface place cambered surface is greater than flowing to channel diameter.After adopting above-mentioned preferred version, rotating sphere, when big sealing surface with flow to channel alignment; Because the chord length of big sealing surface place cambered surface flows to passage and is blocked, thereby close ball valve greater than flowing to channel diameter; Rotating sphere flows to passage with through-hole alignment again, and then ball valve is in the Flow-rate adjustment state; This moment, through hole was in the center of runner, and the swiftly flowing medium through through hole can not wash away spheroid and valve body.
The protection against erosion wear resistance ball valve that the utlity model has flow control function is through the exit portion excision with spheroid; Form the circulation passage that the cross section is U type structure; And through hole is set on spheroid; The size of through hole can require according to the flow control of ball valve to calculate or test is confirmed, the size that also can pass through to change through hole makes ball valve be in three kinds of working staties: closed condition, full-gear and flow control state to regulate the size of flow.When ball valve was used for control flow rate, the through hole of spheroid was in the center position of pipeline, although this moment, medium was very high through flow velocity behind the through hole, swiftly flowing fluid is in the center of passage, so fluid can not wash away and weares and teares valve body and spheroid generation.Therefore, the ball valve of the utility model patent not only can carry out the control of flow, and the structural design of ball valve can prevent the erosive wear of swiftly flowing medium for parts such as ball valve spheroid, valve bodies, and ball valve has longer working life.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment's spheroid;
Structural representation when Fig. 2 is in full-gear for the utility model embodiment protection against erosion wear resistance ball valve;
Structural representation when Fig. 3 is in the complete shut-down state for the utility model embodiment protection against erosion wear resistance ball valve;
Structural representation when Fig. 4 is in the flow control state for the utility model embodiment protection against erosion wear resistance ball valve;
Structural representation when Fig. 5 is in full-gear for the utility model background technique metal hard-sealing ball valve;
Structural representation when Fig. 6 is in the flow control state for the utility model background technique metal hard-sealing ball valve.
Embodiment
Shown in Fig. 1～4; The embodiment of the utility model specifically is a kind of protection against erosion wear resistance ball valve with flow control function, comprises valve body 1, is provided with valve pocket 11 in the valve body 1; The both sides of valve pocket 11 are respectively equipped with and flow to passage 12 and flow pass 13; Flow to passage 12 and be communicated with valve pocket 11 respectively with flow pass 13, a side of valve body 1 is provided with valve gap 14, flows to passage 12 and is arranged on the valve gap 14.Be provided with valve seat 2 in the valve pocket 11, be provided with spheroid 3 in the valve seat 2, spheroid 3 is provided with valve rod groove 31, is provided with in the valve rod groove 31 to drive the valve rod that spheroid 3 rotates.Spheroid 3 side of passage dorsad is spherical sealing surface 32.The setting that is sealed and matched of sealing surface 32 and valve seat 2.Be provided with circulation passage 33 in the spheroid 3, the cross section of circulation passage 33 is U type structure, a side opening of circulation passage 33, and circulation passage 33 is provided with a through hole 34 away from a side of opening, through hole 34 communication seals faces 32 and circulation passage 33.
Through hole 34 is provided with the tilt angle with the sidewall of circulation passage 33, and through hole 34 is divided into primary sealing surface 321 and big sealing surface 322 with sealing surface 32, and the chord length of big sealing surface 322 place's cambered surfaces is greater than the diameter that flows to passage 12.
The protection against erosion wear resistance ball valve of the utility model has three kinds of states: full-gear, complete shut-down state and flow control state.When ball valve was in full-gear, the circulation passage 33 of spheroid 3 was aimed at flowing to passage 12, forms coaxial setting, and spheroid 3 forms smooth passage with flowing to passage 12 with flow pass 13, and at this moment, the area of circulation is maximum.When ball valve was in the complete shut-down state, big sealing surface 322 was aimed at and is flow to passage 12, will flow to passage 12 and block, and fluid is no longer mobile.When ball valve is in the flow control state; The through hole 34 of spheroid 3 is in the center position of pipeline, through hole 34 with flow to passage 12 and be communicated with flow pass 13, medium fluid flows to from flow to passage 12; Flowing out from flow pass 13 through through hole 34; Although this moment, medium was very high through through hole 34 back flow velocitys, swiftly flowing fluid is in the center of fluid passage, so fluid can not wash away and weares and teares valve body 1 and spheroid 3 generations.
Claims (5)
1. the protection against erosion wear resistance ball valve with flow control function comprises valve body, is provided with valve pocket in the valve body; The both sides of valve pocket are respectively equipped with and flow to passage and flow pass, flow to passage and flow pass and are communicated with valve pocket respectively, and a side of valve body is provided with valve gap; It is characterized in that: be provided with valve seat in the described valve pocket, be provided with spheroid in the described valve seat, described spheroid is provided with and drives the valve rod that spheroid rotates; A spheroid side of passage dorsad is a sealing surface, and sealing surface and valve base sealing are equipped with, and are provided with circulation passage in the spheroid; The cross section of described circulation passage is U type structure; One side opening of circulation passage, circulation passage is provided with through hole away from a side of opening, described through hole communication seals face and circulation passage.
2. the protection against erosion wear resistance ball valve with flow control function according to claim 1; It is characterized in that: described valve seat is arranged on the joining place that flows to passage and valve pocket; Be provided with passage in the valve seat; Valve seat is provided with the arc sealing surface near a side of ball seal face, and described arc sealing surface and sealing surface are fitted and be provided with, and form the above-mentioned described setting that is sealed and matched.
3. the protection against erosion wear resistance ball valve with flow control function according to claim 1; It is characterized in that: described valve seat and valve body adopt Expanded graphite to seal; Valve seat is provided with spring away from a side of spheroid, and spring one end and valve seat connect, and the other end and valve body connect.
4. the protection against erosion wear resistance ball valve with flow control function according to claim 1, it is characterized in that: described valve gap and valve seal are equipped with.
5. according to claim 1 or 2 or 3 or 4 described protection against erosion wear resistance ball valves with flow control function; It is characterized in that: described through hole and channel side wall are provided with the tilt angle; Described through hole is divided into primary sealing surface and big sealing surface with sealing surface, and the chord length of described big sealing surface place cambered surface is greater than flowing to channel diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204705094U CN202327193U (en) | 2011-11-23 | 2011-11-23 | Anti-scouring abrasion-resisting ball valve with flow control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204705094U CN202327193U (en) | 2011-11-23 | 2011-11-23 | Anti-scouring abrasion-resisting ball valve with flow control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327193U true CN202327193U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204705094U Expired - Lifetime CN202327193U (en) | 2011-11-23 | 2011-11-23 | Anti-scouring abrasion-resisting ball valve with flow control function |
Country Status (1)
| Country | Link |
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| CN (1) | CN202327193U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506190A (en) * | 2011-11-23 | 2012-06-20 | 浙江超达阀门股份有限公司 | Erosion-protection wear-resisting ball valve with flow control function |
| CN105526375A (en) * | 2014-09-28 | 2016-04-27 | 宁夏富隆德流体科技有限公司 | V-type adjusting ball valve |
| CN112963570A (en) * | 2021-02-20 | 2021-06-15 | 东莞海特帕沃液压科技有限公司 | Anti-scouring ball valve |
-
2011
- 2011-11-23 CN CN2011204705094U patent/CN202327193U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506190A (en) * | 2011-11-23 | 2012-06-20 | 浙江超达阀门股份有限公司 | Erosion-protection wear-resisting ball valve with flow control function |
| CN105526375A (en) * | 2014-09-28 | 2016-04-27 | 宁夏富隆德流体科技有限公司 | V-type adjusting ball valve |
| CN112963570A (en) * | 2021-02-20 | 2021-06-15 | 东莞海特帕沃液压科技有限公司 | Anti-scouring ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHAODA VALVE GROUP CO., LTD. Free format text: FORMER NAME: ZHEJIANG CHAODA VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Jiangbei Avenue Oubei town of Yongjia County of Wenzhou City, Zhejiang province 325000 Patentee after: Chaoda Valve Group Co., Ltd. Address before: Jiangbei Avenue Oubei town of Yongjia County of Wenzhou City, Zhejiang province 325000 Patentee before: Zhejiang Chaoda Valve Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |