CN104482243B - Without friction sealed ball valve - Google Patents
Without friction sealed ball valve Download PDFInfo
- Publication number
- CN104482243B CN104482243B CN201410794269.1A CN201410794269A CN104482243B CN 104482243 B CN104482243 B CN 104482243B CN 201410794269 A CN201410794269 A CN 201410794269A CN 104482243 B CN104482243 B CN 104482243B
- Authority
- CN
- China
- Prior art keywords
- flap
- valve
- seat
- ball
- pressuring plate
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000013022 venting Methods 0.000 claims description 9
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a kind of without friction sealed ball valve, it is characterized in that: in described valve body, valve seat is installed, ball flap, flap seat, ball flap is installed on flap seat groove, ball flap is provided with spherical seal surface, pressuring plate etc., pressuring plate supercharging face forms a pressure chamber and reseting cavity with flap seat groove, valve seat is provided with the sealing surface matched with spherical seal surface, valve rod connects flap seat through valve gap, valve rod center is provided with source of the gas passage, and connect with pressure chamber, when closing valve, first external drive mechanism drives ball flap and flap seat half-twist by valve rod, then the high-pressure medium of external pressure source enters in pressure chamber by source of the gas passage, the spherical seal surface promoting ball flap compresses sealing surface of seat, formed and seal, carry out inverse operations can open.Present configuration is ingenious, during opening and closing, long with or without fretting wear, service life between spherical seal surface and the sealing surface of seat of ball flap.
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 technology
In prior art, ball valve includes valve body, spheroid, valve rod and driving means, 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 it is arranged at body cavity, valve rod is connected through valve body lumen with spheroid, the other end is connected with external driver device, external driver device drives spheroid to carry out 90 ° of rotations by valve rod, so that the sealing surface of seat of the spherical seal surface of spherome surface and body cavity cooperates, form the function being turned on and off ball valve.Its shortcoming is: during spinning ball carries out opening ball valve or closing ball valve, the spherical seal surface of spherome surface and sealing surface of seat can produce friction, make spherical seal surface produce abrasion with sealing surface of seat, cause valve leak, and service life is short.
Summary of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, it is provided that a kind of during opening and closing, the spherical seal surface of ball flap and sealing surface of seat will not produce friction, will not wear and tear, have length in service life without friction sealed ball valve.
nullIn order to solve above-mentioned technical problem，The present invention adopts the following technical scheme that and realizes: this is without friction sealed ball valve，Including 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，Guide circle to be arranged between spherical seal surface and pressuring plate，Pressuring plate outside diameter is more 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 plate，Flap seat upper end is provided with polygonal hole，It is provided with metering hole 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 plate and guiding circle，Reseting cavity is connected with spiracle，Back-moving spring it is provided with in reseting cavity，Valve rod center is provided with source of the gas passage，Upper end is provided with polygon post，Lower end is provided with lower polygon post，Described lower polygon post is connected through valve gap with the polygonal hole of described flap seat upper end，The source of the gas passage at valve rod center metering hole on flap seat communicates with pressure chamber，A venting cavity is formed bottom flap seat bottom portion and body cavity，The passage communicated with air it is provided with bottom venting cavity，This passage is through venting cavity connection spiracle and reseting cavity，Described valve seat is provided with the sealing surface matched with the spherical seal surface on ball flap.
As improving further, the outside diameter of described pressuring plate is described guide circle outside diameter 1.2～1.5 times.
As improving further, 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 improving further, 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 improving further, described back-moving spring is butterfly spring.
The beneficial effects of the present invention is: during ball valve is opened, the first spherical seal surface of ball flap disengages with sealing surface of seat, then ball flap half-twist again is opened；During ball valve is closed, first ball flap half-twist, then the spherical seal surface of ball flap closes with sealing surface of seat, during 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 the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the ball flap part schematic diagram of the present invention.
Fig. 3 is the flap seat part schematic diagram of the present invention.
Fig. 4 is the valve rod part schematic diagram of the present invention.
Detailed description of the invention
Accompanying drawing illustrates the structure of the present invention, further illustrates it about details in conjunction with accompanying drawing below.nullThis is without friction sealed ball valve，Including 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 it is provided with spherical seal surface 301、Pressuring plate 302 and guiding circle 304，Guide circle 304 to be arranged between spherical seal surface 301 and pressuring plate 302，Pressuring plate 302 outside diameter is more 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 plate 400，Flap seat 4 upper end is provided with polygonal hole 401，It is provided with metering hole 402 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 plate 400 and guiding circle 304，Reseting cavity 102 is connected with spiracle 403，Back-moving spring 5 it 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 polygon post 602，External drive mechanism 12 is installed at polygon post 602 on this，Valve rod 6 lower end is provided with lower polygon post 603，Lower polygon post 603 is connected through valve gap 7 with the polygonal hole 401 of flap seat 4 upper end，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 passage 103 communicated with air it is provided with bottom venting cavity 104，Passage 103 connects 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 connects external pressure source 11.
During valve is from opening to closed mode, 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, close valve, now the back-moving spring 5 in reseting cavity 102 is in confined state, has certain potential energy；During valve is from off state to opening, first pass through controller 10 and discharge the high-pressure medium in the gentle source channels of pressure chamber 101 601, ball flap 3 moves right under the active force of back-moving spring 5 and valve body 1 inner chamber medium, spherical seal surface 301 departs from valve seat 2 sealing surface, then valve rod 6, flap seat 4 and ball flap 3 half-twist are driven by external drive mechanism 12, Open valve, during whole open and close, spherical seal surface 301 and valve seat 2 sealing surface are without any fretting wear, and service life is long.
As improving further, the outside diameter of described pressuring plate 302 is described guide circle 304 outside diameters 1.2～1.5 times, thus the high-pressure medium in pressure chamber 101 preferably can act on the power on pressuring plate 302 to be delivered on spherical seal surface 301, preferably compress valve seat 2 sealing surface, having and preferably reliably seal ratio pressure, sealing is more preferably.
As improving further, described ball flap 3 center is provided with limited post 303, can effectively prevent the groove floor of the supercharging end contact flap seat 4 of pressuring plate 302, effectively prevent from reducing the thrust acted on ball flap 3, thus effectively prevent from reducing the sealing of ball valve.
As improving further; 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; so can preferably regulate supercharging and the speed of decompression in pressure chamber 101, be effectively protected ball sealing surface 301 with valve seat 2 sealing surface from impact failure.
In sum, these are only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
- null1. one kind without friction sealed ball valve，Including 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，Body cavity is provided with ball flap，Ball flap is overall cooking-pot type structure，Ball flap is provided with spherical seal surface，Valve rod center is provided with source of the gas passage，The source of the gas passage at valve rod center metering hole on flap seat communicates with pressure chamber，Valve seat is provided with the sealing surface matched with the spherical seal surface on ball flap，It is characterized in that: body cavity is provided with flap seat，Ball flap is provided with pressuring plate and guides circle，Guide circle to be arranged between spherical seal surface and pressuring plate，Pressuring plate outside diameter is more 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 plate，Flap seat upper end is provided with polygonal hole，It is provided with metering hole 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 plate and guiding circle，Reseting cavity is connected with spiracle，Back-moving spring it is provided with in reseting cavity，Upper end is provided with polygon post，Lower end is provided with lower polygon post，Described lower polygon post is connected through valve gap with the polygonal hole of described flap seat upper end，A venting cavity is formed bottom flap seat bottom portion and body cavity，The passage communicated with air it is provided with bottom venting cavity，This passage is through venting cavity connection spiracle and reseting cavity.
- It is the most according to claim 1 without friction sealed ball valve, it is characterised in that: the outside diameter of described pressuring plate is described guide circle outside diameter 1.2～1.5 times.
- It is the most according to claim 1 without friction sealed ball valve, it is characterised in that: 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.
- It is the most according to claim 1 without friction sealed ball valve, it is characterised 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.
- It is the most according to claim 1 without friction sealed ball valve, it is characterised in that: described back-moving 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 CN104482243A (en) | 2015-04-01 |
| CN104482243B true 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) |
Families Citing this family (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 |
| 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 |
| CN110081189B (en) * | 2019-05-15 | 2021-01-05 | 铭工阀门有限公司 | Bidirectional three-eccentric 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN104482243A (en) | 2015-04-01 |
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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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hong Rongkun Inventor before: Zheng Zilin |
|
| TR01 | Transfer of patent right | ||
| 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 |