CN110375088A - A kind of wear-resisting pneumatic ball valve of hydraulic packing - Google Patents
A kind of wear-resisting pneumatic ball valve of hydraulic packing Download PDFInfo
- Publication number
- CN110375088A CN110375088A CN201910761101.3A CN201910761101A CN110375088A CN 110375088 A CN110375088 A CN 110375088A CN 201910761101 A CN201910761101 A CN 201910761101A CN 110375088 A CN110375088 A CN 110375088A
- Authority
- CN
- China
- Prior art keywords
- valve
- wear
- seal
- spherical
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
Abstract
The invention discloses a kind of wear-resisting pneumatic ball valves of hydraulic packing, including valve body, pneumatic actuator and valve position switch, the pneumatic actuator is connected by the spherical valve core of valve rod and valve inner, the valve inner is provided with valve seat, the spherical valve core is located at the inside of valve seat, it is provided with wear ring between the valve seat and the sealing surface of spherical valve core, is provided with seal assembly between the valve body and valve rod.In the present invention, wear ring will be added between valve seat and the sealing surface of spherical valve core script, the direct friction of valve seat and spherical valve core is avoided by wear ring, and the first seal of two O shape structures is between wear ring and valve seat and under normal conditions in the state that is squeezed, therefore two first seals have the function of pressing to wear ring into spherical valve core surface, automatic compensation abrasion loss, is also able to maintain leakproofness while improving wearability.
Description
Technical field
The present invention relates to pneumatic ball valve technical field, specially a kind of wear-resisting pneumatic ball valve of hydraulic packing.
Background technique
Pneumatic ball valve is widely used in every field, and pneumatic ball valve is that pneumatic execution machine is equipped on the basis of ball valve
Structure realizes on-off, the switching etc. of valve body by pneumatically executing structure movement, since the movement for pneumatically executing structure is very fast,
Frictional dissipation between the spherical valve core of valve inner and the valve seat of sealing cooperation is larger, is easy to appear spool after long-time use
It is poorly sealed close, the open circuit of transfer pipeline cannot be fully achieved, to influence the using effect of valve.
For this purpose, we have proposed a kind of wear-resisting pneumatic ball valves of hydraulic packing to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of wear-resisting pneumatic ball valves of hydraulic packing, to solve to propose in above-mentioned background technique
Valve inner spherical valve core and sealing cooperation valve seat between frictional dissipation it is larger, be easy to appear valve after long-time use
The problem of core is poorly sealed close, cannot fully achieve the open circuit of transfer pipeline, influence the using effect of valve.
To achieve the above object, the invention provides the following technical scheme:
A kind of wear-resisting pneumatic ball valve of hydraulic packing, including valve body, pneumatic actuator and valve position switch, the pneumatic actuator
It is connected by the spherical valve core of valve rod and valve inner, the valve inner is provided with valve seat, and the spherical valve core is located at valve seat
Inside, wear ring is provided between the valve seat and the sealing surface of spherical valve core, is provided between the valve body and valve rod close
Sealing assembly.
Preferably, the wear ring is embedded on the counterface of valve seat, and the end face of wear ring and spherical valve core cooperation
The end face of valve seat is stretched out, the material of the wear ring is poly- four ethylene high molecular material of fluorine.
Preferably, there are two first seal, first sealings for side setting of the wear ring far from spherical valve core
Part is all set in the first seal groove on valve seat, and the first seal is O-ring seals.
Preferably, the seal assembly includes gland, and the gland is set on valve rod, and the valve rod is located at valve inner
On be provided with fixed plate, loose collar is provided with above the fixed plate, is covered on the valve rod between the loose collar and fixed plate
Equipped with counterbalance spring.
Preferably, cooperate on the outside of the loose collar with the stop collar of gland bottom surface, the loose collar and valve rod and gland it
Between be provided with second seal.
Preferably, the second seal includes O-ring seals and squeezing type sealed ring, and O-ring seals are located at activity
Between ring and gland, the squeezing type sealed ring is between loose collar and valve rod.
Preferably, third sealing element is provided between the gland and valve rod, the third sealing element is U-shaped structure.
Compared with prior art, the beneficial effects of the present invention are:
1, in the present invention, wear ring will be added between valve seat and the sealing surface of spherical valve core script, valve is avoided by wear ring
The direct friction of seat and spherical valve core, and the first seal of two O shape structures is between wear ring and valve seat and under normal conditions
In the state of being squeezed, therefore two first seals have the function of pressing to wear ring into spherical valve core surface, automatic to compensate
Abrasion loss is also able to maintain leakproofness while improving wearability.
2, in the present invention, since fixed plate and valve rod are connected and fixed, when valve rod is by active force, counterbalance spring can be forced
It is compressed, when counterbalance spring acts on loose collar, loose collar and gland can be made to be bonded closer, while gland and valve
Using the third sealing element of U-shaped structure, when valve body inside pressure increases, the lip meeting of third sealing element at the cooperation of bar
Deformation occurs, leakproofness is increased with pressure rise, and can compensate abrasion loss automatically.
Detailed description of the invention:
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to embodiment or existing skill
Attached drawing needed in art description is briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the partial enlarged view in Fig. 1 at B.
In figure: 1, valve body；2, pneumatic actuator；3, valve position switch；4, valve rod；5, spherical valve core；6, valve seat；7, wear-resisting
Ring；8, seal assembly；801, gland；802, fixed plate；803, loose collar；804, counterbalance spring；805, stop collar；9, first is close
Sealing；10, the first seal groove；11, second seal；12, third sealing element.
Specific embodiment:
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clearly and completely
Description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, a kind of embodiment provided by the invention: a kind of wear-resisting pneumatic ball valve of hydraulic packing, including valve body
1, pneumatic actuator 2 and valve position switch 3, pneumatic actuator 2 are connect by valve rod 4 with the spherical valve core 5 inside valve body 1,
Valve body 1 is internally provided with valve seat 6, and spherical valve core 5 is located at the inside of valve seat 6, sets between valve seat 6 and the sealing surface of spherical valve core 5
It is equipped with wear ring 7, seal assembly 8 is provided between valve body 1 and valve rod 4.
Wear ring 7 is added between the sealing surface of 5 script of valve seat 6 and spherical valve core, and valve seat 6 is avoided by wear ring 7
With the direct friction of spherical valve core 5, while being kept between wear ring 7 and spherical valve core 5 by the first seal 9 of O shape structure
Leakproofness, and between valve rod 4 and valve body 1 by dynamic sealing component 8 realize sealing.
Specifically, wear ring 7 is embedded on the counterface of valve seat 6, and the end face that wear ring 7 and spherical valve core 5 cooperate
Stretch out the end face of valve seat 6, the material of wear ring 7 is poly- four ethylene high molecular material of fluorine, wear ring 7 far from spherical valve core 5 one
Side setting is there are two first seal 9, and first seal 9 is all set in the first seal groove 10 on valve seat 6, first seal
9 be O-ring seals, is separated spherical valve core 5 and valve seat 6 using wear ring 7, and the first seal 9 of O shape structure can
It keeps wear ring 7 to remain with the surface of spherical valve core 5 to be bonded.
Specifically, seal assembly 8 includes gland 801, gland 801 is set on valve rod 4, and valve rod 4 is located on 1 inside of valve body
It is provided with fixed plate 802, the top of fixed plate 802 is provided with loose collar 803, the valve rod between loose collar 803 and fixed plate 802
Counterbalance spring 804 is arranged on 4,803 outside of loose collar and the stop collar 805 of 801 bottom surface of gland cooperate, loose collar 803 and valve
Second seal 11 is provided between bar 4 and gland 801, second seal 11 includes O-ring seals and squeezing type sealed ring,
And O-ring seals, between loose collar 803 and gland 801, squeezing type sealed ring is between loose collar 803 and valve rod 4, pressure
Third sealing element 12 is provided between lid 801 and valve rod 4, third sealing element 12 is U-shaped structure, in the process of running, loose collar
It will form one layer of fluid film between contact surface between 803 and valve rod 4 and gland 801, play lubricant effect, and compensate bullet
Spring 804 as load on spring in conjunction with the fluid pressure inside valve body 1 so that between loose collar 803 and gland 801 and valve rod 4
Realize sealing function.
Working principle:
Wear ring 7 is added between the sealing surface of 5 script of valve seat 6 and spherical valve core, and valve seat 6 and spherical shape are avoided by wear ring 7
The direct friction of spool 5, and the first seal 9 of two O shape structures is between wear ring 7 and valve seat 6 and under normal conditions
Be squeezed state, therefore two first seals 9 have the function of pressing to wear ring 7 into 5 surface of spherical valve core；
Since fixed plate 802 and valve rod 4 are connected and fixed, when valve rod 4 is by active force, counterbalance spring 804 can be forced to be pressed
Contracting can be such that loose collar 803 and gland 801 is bonded closer, press simultaneously when counterbalance spring 804 acts on loose collar 803
Using the third sealing element 12 of U-shaped structure, when 1 inside pressure of valve body increases, third at the cooperation of lid 801 and valve rod 4
The lip of sealing element 12 can deformation occurs, leakproofness is increased with pressure rise, and can compensate abrasion loss automatically.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (7)
1. a kind of wear-resisting pneumatic ball valve of hydraulic packing, including valve body (1), pneumatic actuator (2) and valve position switch (3), described
Pneumatic actuator (2) is connect by valve rod (4) spherical valve core (5) internal with valve body (1), setting inside the valve body (1)
Have valve seat (6), the spherical valve core (5) is located at the inside of valve seat (6), which is characterized in that the valve seat (6) and spherical valve core
(5) it is provided between sealing surface wear ring (7), is provided with seal assembly (8) between the valve body (1) and valve rod (4).
2. the wear-resisting pneumatic ball valve of a kind of hydraulic packing according to claim 1, which is characterized in that the wear ring (7) is embedding
On the counterface of valve seat (6), and the end face of valve seat (6) is stretched out in the end face of wear ring (7) and spherical valve core (5) cooperation,
The material of the wear ring (7) is poly- four ethylene high molecular material of fluorine.
3. the wear-resisting pneumatic ball valve of a kind of hydraulic packing according to claim 2, which is characterized in that the wear ring (7) is remote
There are two first seal (9), the first seal (9) is all set on valve seat (6) for side setting from spherical valve core (5)
The first seal groove (10) in, the first seal (9) be O-ring seals.
4. the wear-resisting pneumatic ball valve of a kind of hydraulic packing according to claim 1, which is characterized in that the seal assembly (8)
Including gland (801), the gland (801) is set on valve rod (4), and the valve rod (4), which is located on valve body (1) inside, to be provided with
Fixed plate (802) is provided with loose collar (803) above the fixed plate (802), the loose collar (803) and fixed plate
(802) counterbalance spring (804) are arranged on the valve rod (4) between.
5. the wear-resisting pneumatic ball valve of a kind of hydraulic packing according to claim 4, which is characterized in that the loose collar (803)
The stop collar (805) of outside and gland (801) bottom surface cooperates, between the loose collar (803) and valve rod (4) and gland (801)
It is provided with second seal (11).
6. the wear-resisting pneumatic ball valve of a kind of hydraulic packing according to claim 5, which is characterized in that the second seal
It (11) include O-ring seals and squeezing type sealed ring, and O-ring seals are located between loose collar (803) and gland (801), institute
Squeezing type sealed ring is stated to be located between loose collar (803) and valve rod (4).
7. the wear-resisting pneumatic ball valve of a kind of hydraulic packing according to claim 5, which is characterized in that the gland (801) with
It is provided between valve rod (4) third sealing element (12), the third sealing element (12) is U-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910761101.3A CN110375088A (en) | 2019-08-17 | 2019-08-17 | A kind of wear-resisting pneumatic ball valve of hydraulic packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910761101.3A CN110375088A (en) | 2019-08-17 | 2019-08-17 | A kind of wear-resisting pneumatic ball valve of hydraulic packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110375088A true CN110375088A (en) | 2019-10-25 |
Family
ID=68259707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910761101.3A Pending CN110375088A (en) | 2019-08-17 | 2019-08-17 | A kind of wear-resisting pneumatic ball valve of hydraulic packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110375088A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2124646B1 (en) * | 1995-05-03 | 1999-08-16 | Bach S A V | PERFECTED VALVE. |
| CN202520983U (en) * | 2012-04-12 | 2012-11-07 | 上海浦东汉威阀门有限公司 | Opening valve seat type ball valve |
| CN202580105U (en) * | 2012-05-09 | 2012-12-05 | 温州蓝天管件阀门有限公司 | Sealing structure for hard sealed floating ball valve |
| CN203453525U (en) * | 2013-09-17 | 2014-02-26 | 浙江石化阀门有限公司 | Electric rigidity seal ball valve |
| CN104048100A (en) * | 2013-03-15 | 2014-09-17 | 上海浦东汉威阀门有限公司 | Sealing structure for packless self-compensation sealing valve |
| CN204985985U (en) * | 2015-08-18 | 2016-01-20 | 绥中泰德尔自控设备有限公司 | Bowl type stem seal subassembly structure with dustproof function |
| CN205013735U (en) * | 2015-08-19 | 2016-02-03 | 国工阀门有限公司 | Wear -resistant eccentric half -ball valve |
| CN206958300U (en) * | 2017-06-21 | 2018-02-02 | 上海弘盛特种阀门制造股份有限公司 | A kind of pneumatic ball valve |
| CN206958255U (en) * | 2017-07-20 | 2018-02-02 | 广州宝力特密封技术有限公司 | A kind of two-shot elastomer combination sealing |
-
2019
- 2019-08-17 CN CN201910761101.3A patent/CN110375088A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2124646B1 (en) * | 1995-05-03 | 1999-08-16 | Bach S A V | PERFECTED VALVE. |
| CN202520983U (en) * | 2012-04-12 | 2012-11-07 | 上海浦东汉威阀门有限公司 | Opening valve seat type ball valve |
| CN202580105U (en) * | 2012-05-09 | 2012-12-05 | 温州蓝天管件阀门有限公司 | Sealing structure for hard sealed floating ball valve |
| CN104048100A (en) * | 2013-03-15 | 2014-09-17 | 上海浦东汉威阀门有限公司 | Sealing structure for packless self-compensation sealing valve |
| CN203453525U (en) * | 2013-09-17 | 2014-02-26 | 浙江石化阀门有限公司 | Electric rigidity seal ball valve |
| CN204985985U (en) * | 2015-08-18 | 2016-01-20 | 绥中泰德尔自控设备有限公司 | Bowl type stem seal subassembly structure with dustproof function |
| CN205013735U (en) * | 2015-08-19 | 2016-02-03 | 国工阀门有限公司 | Wear -resistant eccentric half -ball valve |
| CN206958300U (en) * | 2017-06-21 | 2018-02-02 | 上海弘盛特种阀门制造股份有限公司 | A kind of pneumatic ball valve |
| CN206958255U (en) * | 2017-07-20 | 2018-02-02 | 广州宝力特密封技术有限公司 | A kind of two-shot elastomer combination sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191025 |
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| RJ01 | Rejection of invention patent application after publication |