CN104482243A - Frictionless sealing ball valve - Google Patents
Frictionless sealing ball valve Download PDFInfo
- Publication number
- CN104482243A CN104482243A CN201410794269.1A CN201410794269A CN104482243A CN 104482243 A CN104482243 A CN 104482243A CN 201410794269 A CN201410794269 A CN 201410794269A CN 104482243 A CN104482243 A CN 104482243A
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- CN
- China
- Prior art keywords
- valve
- flap
- ball
- seat
- cavity
- 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.)
- Granted
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Classifications
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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
- F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K5/08—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a frictionless sealing ball valve which is characterized in that a valve base, a ball shaped valve pedal and a valve pedal base are arranged inside a valve body, wherein the ball shaped valve pedal is arranged at a groove position of the valve pedal base, the ball shaped valve pedal is provided with a ball shaped sealing surface and a pressurizing board, the pressurizing surface of the pressurizing board and the groove position of the valve pedal base form a pressure cavity and a reset cavity, the valve base is provided with a sealing surface which is matched with the ball shaped sealing surface, a valve rod penetrates through a valve cover and is connected with the valve pedal base, an air source channel is arranged in the center of the valve rod and is communicated with the pressure cavity, when the valve is closed, an exterior driving mechanism drives the ball shaped valve pedal and the valve pedal base through the valve rod to rotate by 90 degrees, high pressure medium of an external pressure source enters the pressure cavity through the air source channel, pushes the ball shaped sealing surface of the ball shaped valve pedal and tightly presses the valve base sealing surface, the sealing is formed, and the valve can be opened through reversed operation. The structure is ingenious, friction abrasion between the ball shaped sealing surface of the ball shaped valve pedal and the valve base sealing surface is avoided during opening and closing, and the service life is long.
Description
Technical field
The present invention relates to a kind of ball valve, especially relate to a kind of without friction sealed ball valve.
Background technique
In prior art, ball valve comprises valve body, spheroid, valve rod and drive unit, body cavity is provided with valve seat, valve seat is provided with sealing surface of seat, spherome surface is provided with spherical seal surface, and be arranged at body cavity, valve rod is connected with spheroid through valve body lumen, the other end is connected with external driver device, external driver device drives spheroid to carry out 90 ° of rotations by valve rod, thus the spherical seal surface of spherome surface and the sealing surface of seat of body cavity are cooperatively interacted, form the function of opening or closing ball valve.Its shortcoming is: spinning ball carries out opening ball valve or closing in the process of ball valve, and the spherical seal surface of spherome surface and sealing surface of seat can produce friction, and spherical seal surface and sealing surface of seat are produced and weares and teares, cause valve leak, working life is short.
Summary of the invention
Technical problem to be solved by this invention overcomes the deficiencies in the prior art, there is provided in a kind of process opening and closing, the spherical seal surface of ball flap and sealing surface of seat can not produce friction, can not wear and tear, have long service life without friction sealed ball valve.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme to realize: this is without friction sealed ball valve, comprise valve body, valve seat, valve gap and valve rod, described valve gap is arranged on body top, body cavity is provided with the runner for medium circulation, valve seat is installed in body cavity runner, it is characterized in that: body cavity is provided with ball flap, flap seat, ball flap is overall cooking-pot type structure, ball flap is provided with spherical seal surface, pressuring plate and guiding circle, guiding circle is arranged between spherical seal surface and pressuring plate, pressuring plate outside diameter is greater than guiding circular diameter, pressuring plate is provided with supercharging end face and reset end face, flap seat left part is groove type structure, groove top is provided with limiting board, flap seat upper end is provided with polygonal hole, metering hole is provided with bottom this polygonal hole, flap seat lower end is provided with spiracle, ball flap is installed on the groove of flap seat left part, a pressure chamber is formed between the supercharging end face of this bottom portion of groove and pressuring plate, this pressure chamber communicates with metering hole, the reset end face of pressuring plate, a reseting cavity is formed between limiting board and guiding circle, reseting cavity is connected with spiracle, Returnning spring is provided with in reseting cavity, valve rod center is provided with source of the gas passage, upper end is provided with polygonal post, lower end is provided with lower polygonal post, described lower polygonal post is connected with the polygonal hole of described flap seat upper end through valve gap, the metering hole of source of the gas passage on flap seat at valve rod center communicates with pressure chamber, a venting cavity is formed bottom flap seat with bottom body cavity, the vent communicated with air is provided with bottom venting cavity, this vent is communicated with spiracle and reseting cavity through venting cavity, described valve seat is provided with the sealing surface matched with the spherical seal surface on ball flap.
As further improvement, the outside diameter of described pressuring plate is 1.2 ~ 1.5 times of described guiding circle outside diameter.
As further improvement, described ball flap center is provided with limited post, and limited post end face is higher than the supercharging end face 2 ~ 6mm of pressuring plate.
As further improvement, the diameter of section of described metering hole is 0.8 ~ 1.0 times of described source of the gas channel cross-section diameter.
As further improvement, described Returnning spring is butterfly spring.
Beneficial effect of the present invention is: in the process that ball valve is opened, first spherical seal surface and the sealing surface of seat of ball flap are thrown off, then ball flap half-twist unlatching again; In the process that ball valve is closed, first ball flap half-twist, then the spherical seal surface of ball flap and sealing surface of seat close, in the process that ball valve opens and closes, the spherical seal surface of ball flap and sealing surface of seat are without any frictional contact, without fretting wear, increase the service life.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 is ball flap part schematic diagram of the present invention.
Fig. 3 is flap seat part schematic diagram of the present invention.
Fig. 4 is valve rod part schematic diagram of the present invention.
Embodiment
Drawings illustrate structure of the present invention, further illustrate its details by reference to the accompanying drawings more below.This is without friction sealed ball valve, comprise valve body 1, valve seat 2, ball flap 3, flap seat 4, valve rod 6 and valve gap 7, valve gap 7 is arranged on valve body 1 top, valve body 1 inner chamber is provided with the runner for medium circulation, valve seat 2 is installed in valve body 1 inner chamber runner, ball flap 3 is overall cooking-pot type structure, and be provided with spherical seal surface 301, pressuring plate 302 and guiding circle 304, guiding circle 304 is arranged between spherical seal surface 301 and pressuring plate 302, pressuring plate 302 outside diameter is greater than guiding circle 304 diameters, pressuring plate 302 is provided with supercharging end face and reset end face, flap seat 4 is installed on body cavity, flap seat 4 left part is groove type structure, groove top is provided with limiting board 400, flap seat 4 upper end is provided with polygonal hole 401, metering hole 402 is provided with bottom this polygonal hole 401, flap seat 4 lower end is provided with spiracle 403, ball flap 3 is installed on the groove of flap seat 4 left part, a pressure chamber 101 is formed between the supercharging end face of this bottom portion of groove and pressuring plate 302, this pressure chamber 101 is connected with metering hole 402, the reset end face of pressuring plate 302, a reseting cavity 102 is formed between limiting board 400 and guiding circle 304, reseting cavity 102 is connected with spiracle 403, Returnning spring 5 is provided with in reseting cavity 102, valve rod 6 center is provided with source of the gas passage 601, valve rod 6 upper end is provided with polygonal post 602, on this, polygonal post 602 place is provided with external drive mechanism 12, valve rod 6 lower end is provided with lower polygonal post 603, lower polygonal post 603 is connected with the polygonal hole 401 of flap seat 4 upper end through valve gap 7, the source of the gas passage 601 at valve rod center communicates with pressure chamber 101 through metering hole 402, a venting cavity 104 is formed with valve body 1 intracavity bottom bottom flap seat 4, the vent 103 communicated with air is provided with bottom venting cavity 104, vent 103 is communicated with spiracle 403 and reseting cavity 102 through venting cavity 104, valve seat 2 is provided with the sealing surface matched with the spherical seal surface 301 on ball flap 3, pressure chamber 101 is through source of the gas passage 601, controller 10, pipe 9 is communicated with external pressure source 11.
When in the process of valve from opening state to closed condition, first external drive mechanism 12 drives ball flap 3 half-twist by valve rod 6, flap seat 4, then the high-pressure medium controlled in external pressure source 11 by controller 10 enters into source of the gas passage 601 and pressure chamber 101 through pipe 9, ball flap 3 is moved to the left under the promotion of high-pressure medium active force, spherical seal surface 301 compresses valve seat 2 sealing surface, thus form sealing, throttle down, Returnning spring 5 now in reseting cavity 102 is in confined state, has certain potential energy; When in the process of valve from closed condition to opening state, first by the high-pressure medium in the gentle source channels 601 in controller 10 release pressure chamber 101, ball flap 3 moves right under the active force of Returnning spring 5 and valve body 1 inner chamber medium, spherical seal surface 301 departs from valve seat 2 sealing surface, then by external drive mechanism 12 actuate valve stem 6, flap seat 4 and ball flap 3 half-twist, Open valve, in the process of whole open and close, spherical seal surface 301 and valve seat 2 sealing surface without any fretting wear, long service life.
As further improvement, the outside diameter of described pressuring plate 302 is 1.2 ~ 1.5 times of described guiding circle 304 outside diameters, so just can better the high-pressure medium in pressure chamber 101 be delivered on spherical seal surface 301 at the power acted on pressuring plate 302, better compression valve seat 2 sealing surface, have better reliable sealing specific pressure, sealing is better.
As further improvement, described ball flap 3 center is provided with limited post 303, effectively can prevent the groove floor of the supercharging end contact flap seat 4 of pressuring plate 302, effectively prevent from reducing to act on the thrust on ball flap 3, thus effectively prevent the sealing reducing ball valve.
As further improvement; the diameter of section of described metering hole 402 is 0.8 ~ 1.0 times of described source of the gas passage 601 diameter of section; better can regulate the speed of supercharging and decompression in pressure chamber 101 like this, effective protection ball sealing surface 301 and valve seat 2 sealing surface are from impact failure.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. one kind without friction sealed ball valve, comprise valve body, valve seat, valve gap and valve rod, described valve gap is arranged on body top, body cavity is provided with the runner for medium circulation, valve seat is installed in body cavity runner, it is characterized in that: body cavity is provided with ball flap, flap seat, ball flap is overall cooking-pot type structure, ball flap is provided with spherical seal surface, pressuring plate and guiding circle, guiding circle is arranged between spherical seal surface and pressuring plate, pressuring plate outside diameter is greater than guiding circular diameter, pressuring plate is provided with supercharging end face and reset end face, flap seat left part is groove type structure, groove top is provided with limiting board, flap seat upper end is provided with polygonal hole, metering hole is provided with bottom this polygonal hole, flap seat lower end is provided with spiracle, ball flap is installed on the groove of flap seat left part, a pressure chamber is formed between the supercharging end face of this bottom portion of groove and pressuring plate, this pressure chamber communicates with metering hole, the reset end face of pressuring plate, a reseting cavity is formed between limiting board and guiding circle, reseting cavity is connected with spiracle, Returnning spring is provided with in reseting cavity, valve rod center is provided with source of the gas passage, upper end is provided with polygonal post, lower end is provided with lower polygonal post, described lower polygonal post is connected with the polygonal hole of described flap seat upper end through valve gap, the metering hole of source of the gas passage on flap seat at valve rod center communicates with pressure chamber, a venting cavity is formed bottom flap seat with bottom body cavity, the vent communicated with air is provided with bottom venting cavity, this vent is communicated with spiracle and reseting cavity through venting cavity, described valve seat is provided with the sealing surface matched with the spherical seal surface on ball flap.
2. according to claim 1 without friction sealed ball valve, it is characterized in that: the outside diameter of described pressuring plate is 1.2 ~ 1.5 times of described guiding circle outside diameter.
3. according to claim 1 without friction sealed ball valve, it is characterized in that: described ball flap center is provided with limited post, limited post end face is higher than the supercharging end face 2 ~ 6mm of pressuring plate.
4. according to claim 1 without friction sealed ball valve, it is characterized in that: the diameter of section of described metering hole is 0.8 ~ 1.0 times of described source of the gas channel cross-section diameter.
5. according to claim 1 without friction sealed ball valve, it is characterized in that: described Returnning spring is butterfly spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410794269.1A CN104482243B (en) | 2014-12-21 | 2014-12-21 | Without friction sealed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410794269.1A CN104482243B (en) | 2014-12-21 | 2014-12-21 | Without friction sealed ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104482243A true CN104482243A (en) | 2015-04-01 |
| CN104482243B CN104482243B (en) | 2016-08-17 |
Family
ID=52756819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410794269.1A Active CN104482243B (en) | 2014-12-21 | 2014-12-21 | Without friction sealed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104482243B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591516A (en) * | 2018-05-24 | 2018-09-28 | 李祥庆 | A kind of application method of anti-wear ball valve |
| CN110081189A (en) * | 2019-05-15 | 2019-08-02 | 李琼 | A kind of two-way three-eccentric-butterfly-valve |
| CN110081190A (en) * | 2019-05-15 | 2019-08-02 | 徐国华 | A kind of bidirectional sealed butterfly valve |
| CN113803490A (en) * | 2021-11-01 | 2021-12-17 | 陈功强 | Semi-ball valve |
-
2014
- 2014-12-21 CN CN201410794269.1A patent/CN104482243B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591516A (en) * | 2018-05-24 | 2018-09-28 | 李祥庆 | A kind of application method of anti-wear ball valve |
| CN110081189A (en) * | 2019-05-15 | 2019-08-02 | 李琼 | A kind of two-way three-eccentric-butterfly-valve |
| CN110081190A (en) * | 2019-05-15 | 2019-08-02 | 徐国华 | A kind of bidirectional sealed butterfly valve |
| CN110081190B (en) * | 2019-05-15 | 2021-04-30 | 上海沪工阀门厂(集团)有限公司 | Bidirectional sealing butterfly valve |
| CN113803490A (en) * | 2021-11-01 | 2021-12-17 | 陈功强 | Semi-ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104482243B (en) | 2016-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hong Rongkun Inventor before: Zheng Zilin |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180110 Address after: 300450 Jintang Road, Tanggu, Tianjin Binhai New Area, No. 86 Patentee after: Tianjin Tanggu first valve Co., Ltd. Address before: 325115 Zhejiang province Wenzhou city Yongjia County rock head town carp Creek Village Patentee before: Zheng Ziye |
|
| TR01 | Transfer of patent right |