CN106523730A - Low-wear ball valve - Google Patents
Low-wear ball valve Download PDFInfo
- Publication number
- CN106523730A CN106523730A CN201510592943.2A CN201510592943A CN106523730A CN 106523730 A CN106523730 A CN 106523730A CN 201510592943 A CN201510592943 A CN 201510592943A CN 106523730 A CN106523730 A CN 106523730A
- Authority
- CN
- China
- Prior art keywords
- valve
- spheroid
- cam
- valve seat
- valve body
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention provides a low-wear ball valve. Auxiliary valve bodies, gaskets and a main valve body are connected by means of thread pairs to form a housing. An auxiliary valve body, an O-shaped seal ring, a spiral spring, a valve seat, a ball body, a valve seat, a spiral spring, an O-shaped seal ring and an auxiliary valve body are connected in sequence. A fixed shaft, the main valve body, a cam, a locating pin, the ball body, a locating pin, a cam, a valve rod, a packing box, a packing, a packing pressure plate and a driving device are connected in sequence. The cams are fixed to the ball body by means of the two locating pins. A plurality of spiral springs used for floating supporting are arranged on the back of the valve seat. A tenon of the valve rod is inserted in a square hole in the top of the ball body. The fixed shaft is inserted in a blind hole in the bottom of the ball body. When being closed or being rotated for 90 degrees, the valve is at the opening position; and during the process of rotating by an angle of 3 degrees, the valve body is in contact with the valve seat, while during the process of rotating by 84 degrees, under the action of the cams, the ball body is separated from and in contact with the valve seat, so that the wear of sealing surfaces of the ball body and the valve seat is reduced greatly, and the low-wear ball valve meets the market requirement.
Description
Art
The present invention relates to a kind of ball valve for making spheroid, sealing surface of seat there was only low abrasion.
Background technology
No matter the fixed spherical ball valve that China uses at present is in closing, or conducting, or opens and closes process
In, spheroid, sealing surface of seat remain contact condition, in order to maintain sealing, must between spheroid and valve seat
There need to be pretightning force, so during opening and closing, being bound between spheroid, sealing surface of seat, it is larger to produce
Abrasion, if biphase flow medium passes through, can unstable wear, have a strong impact on its service life.
The content of the invention
In order to avoid fixed spherical ball valve spheroid, sealing surface of seat produce larger abrasion, service life is short to be lacked
Fall into, the present invention provides a kind of low abrasion ball valve, easy to manufacture, low production cost greatly extends and uses the longevity
Life.
The technical solution adopted in the present invention is：The low abrasion ball valve is by fixing axle, main valve body, auxiliary valve body, ball
Body, cam, valve seat, alignment pin, O-ring seal, helical spring, screw thread pair, pad, stuffing box, fill out
Material, valve rod, hold-down grid, driving means composition, auxiliary valve body, pad, main valve body are connected by screw thread pair,
Composition shell, auxiliary valve body, O-ring seal, helical spring, valve seat, spheroid, valve seat, helical spring, O
Type sealing ring, auxiliary valve body are sequentially connected, fixing axle, main valve body, cam, alignment pin, spheroid, alignment pin,
Cam, valve rod, stuffing box, filler, hold-down grid, driving means are sequentially connected, and cam is fixed by two
Position pin is fixed with spheroid, has several helical springs to make float support in valve seat back side periphery, and valve rod side's tenon is inserted in
At the top of spheroid in square hole, fixing axle is inserted in the blind hole of spheroid bottom.Cam be designed with two it is symmetrical with regard to the center of circle
Cam arc, it is desirable to they are completely closed when valve, or after being rotated by 90 ° on fully on the two positions,
In the range of 3 °, the sealing surface of spheroid and valve seat is in contact condition, and remaining 84 ° of rotary course, by
In there is cam, spheroid is made to disengage with valve seat.
The invention has the beneficial effects as follows, valve is in closed position, or fully on position after being rotated by 90 °,
In the range of 3 °, spheroid is contact condition with valve seat, and in remaining 84 ° of rotary course, due to the work of cam
With spheroid is disengaged with valve seat, will not produce abrasion, and this just greatly reduces spheroid and valve base sealing
Abrasion between face, is particularly well-suited to the operating mode of frequent starting, improves service life, is the 3～5 of ordinary ball valve
Times, and simple structure, easy to manufacture, low production cost, very meeting the market requirement.
Description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is the structure chart of the present invention.
Fig. 2 is cam front view.
Fig. 3 is spheroid sectional view.
1. auxiliary valve body in figure, 2. fixing axle, 3. main valve body, 4. spheroid, 5. cam, 6. valve seat, 7. fixed
Position is sold, 8.O type sealing rings, 9. helical spring, 10. screw thread pair, 11. pads, 12. stuffing boxes, and 13. fill out
Material, 14. hold-down grids, 15. valve rods, 16. driving means.
Specific embodiment
As illustrated, auxiliary valve body 1, pad 11, main valve body 3 are connected by screw thread pair 10, shell is constituted, it is secondary
It is valve body 1, O-ring seal 8, helical spring 9, valve seat 6, spheroid 4, valve seat 6, helical spring 9, O-shaped
Sealing ring 8, auxiliary valve body 1 are sequentially connected, fixing axle 2, main valve body 3, cam 5, alignment pin 7, spheroid 4,
Alignment pin 7, cam 5, valve rod 15, stuffing box 12, filler 13, hold-down grid 14, driving means 16
It is sequentially connected, cam 5 is fixed with spheroid 4 by two alignment pins 7, has several in 6 back side periphery of valve seat
Helical spring 9 makees float support, and 15 side's tenon of valve rod is inserted in 4 top square hole of spheroid, and fixing axle 2 is inserted in ball
In 4 bottom blind hole of body.Cam is designed with two with regard to the symmetrical cam arc in the center of circle, and valve is in close stance
Put, or fully on position after being rotated by 90 °, in the range of 3 °, spheroid 4 is contact condition with valve seat 6,
And in remaining 84 ° of rotary course, due to there is cam 5, spheroid is disengaged with valve seat, greatly
Reduction spheroid and sealing surface of seat between wear and tear, improve service life, be 3～5 times of ordinary ball valve, especially
Suitable for the operating mode of frequent starting, while easy to manufacture, low production cost, very meeting the market requirement.
Claims (1)
1. a kind of low abrasion ball valve, by auxiliary valve body (1), fixing axle (2), main valve body (3), spheroid (4), cam (5), valve seat
(6), alignment pin (7), O-ring seal (8), helical spring (9), screw thread pair (10), pad (11), stuffing box (12), fill out
Material (13), hold-down grid (14), valve rod (15), driving means (16) composition, auxiliary valve body (1), pad (11), main valve body (3)
Connected by screw thread pair (10), constitute shell, it is characterized in that：Auxiliary valve body (1), O-ring seal (8), helical spring (9),
Valve seat (6), spheroid (4), valve seat (6), helical spring (9), O-ring seal (8), auxiliary valve body (1) are sequentially connected, Gu
Dead axle (2), main valve body (3), cam (5), alignment pin (7), spheroid (4), alignment pin (7), cam (5), valve rod (15),
Stuffing box (12), filler (13), hold-down grid (14), driving means (16) are sequentially connected, and cam (5) is positioned by two
Pin (7) is fixed with spheroid (4), has several helical springs (9) to make float support, valve rod (15) in valve seat (6) back side periphery
Square tenon is inserted at the top of spheroid (4) in square hole, and fixing axle (2) is inserted in the blind hole of spheroid (4) bottom, and cam is designed with two
The individual cam arc symmetrical with regard to the center of circle, it is desirable to which they are completely closed in valve, or are led after being rotated by 90 ° completely
Lead on the two positions, in the range of 3 °, spheroid is contact condition with the sealing surface of valve seat, and at remaining
In 84 ° of rotary courses, as cam is acted on, spheroid is made to disengage with valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510592943.2A CN106523730A (en) | 2015-09-12 | 2015-09-12 | Low-wear ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510592943.2A CN106523730A (en) | 2015-09-12 | 2015-09-12 | Low-wear ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106523730A true CN106523730A (en) | 2017-03-22 |
Family
ID=58349175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510592943.2A Pending CN106523730A (en) | 2015-09-12 | 2015-09-12 | Low-wear ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106523730A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561579A (en) * | 2018-03-19 | 2018-09-21 | 江苏神通阀门股份有限公司 | A kind of valve seat detaching structure of the metal sealing fixing ball valve sealing pair without relative motion |
| CN109854777A (en) * | 2019-04-02 | 2019-06-07 | 北京宇航推进科技有限公司 | A kind of multifunction combined ball valve and control method of liquid-propellant rocket engine |
| CN109990105A (en) * | 2019-05-16 | 2019-07-09 | 陈乾才 | A kind of Bidirectional pressure spherical cambered surface hard alloy sealed butterfly valve |
| CN114635999A (en) * | 2022-03-29 | 2022-06-17 | 山东大学 | Floating valve seat type ball valve driven by cam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734486A (en) * | 2012-06-21 | 2012-10-17 | 镇江市铸造阀门厂有限公司 | Valve assembly sealing device of low temperature ball valve |
| CN202971983U (en) * | 2012-06-21 | 2013-06-05 | 镇江市铸造阀门厂有限公司 | Valve combined sealing device for low-temperature ball valve |
| CN103375602A (en) * | 2012-04-12 | 2013-10-30 | 上海浦东汉威阀门有限公司 | Open valve seat type ball valve |
| CN104791512A (en) * | 2013-10-15 | 2015-07-22 | 费希尔控制国际公司 | Floating ball valve seal |
| CN204942602U (en) * | 2015-09-12 | 2016-01-06 | 江苏江恒阀业有限公司 | Low wearing and tearing ball valve |
-
2015
- 2015-09-12 CN CN201510592943.2A patent/CN106523730A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375602A (en) * | 2012-04-12 | 2013-10-30 | 上海浦东汉威阀门有限公司 | Open valve seat type ball valve |
| CN102734486A (en) * | 2012-06-21 | 2012-10-17 | 镇江市铸造阀门厂有限公司 | Valve assembly sealing device of low temperature ball valve |
| CN202971983U (en) * | 2012-06-21 | 2013-06-05 | 镇江市铸造阀门厂有限公司 | Valve combined sealing device for low-temperature ball valve |
| CN104791512A (en) * | 2013-10-15 | 2015-07-22 | 费希尔控制国际公司 | Floating ball valve seal |
| CN204942602U (en) * | 2015-09-12 | 2016-01-06 | 江苏江恒阀业有限公司 | Low wearing and tearing ball valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561579A (en) * | 2018-03-19 | 2018-09-21 | 江苏神通阀门股份有限公司 | A kind of valve seat detaching structure of the metal sealing fixing ball valve sealing pair without relative motion |
| CN109854777A (en) * | 2019-04-02 | 2019-06-07 | 北京宇航推进科技有限公司 | A kind of multifunction combined ball valve and control method of liquid-propellant rocket engine |
| CN109854777B (en) * | 2019-04-02 | 2024-02-13 | 北京宇航推进科技有限公司 | Multifunctional combined ball valve of liquid rocket engine and control method |
| CN109990105A (en) * | 2019-05-16 | 2019-07-09 | 陈乾才 | A kind of Bidirectional pressure spherical cambered surface hard alloy sealed butterfly valve |
| CN114635999A (en) * | 2022-03-29 | 2022-06-17 | 山东大学 | Floating valve seat type ball valve driven by cam |
| CN114635999B (en) * | 2022-03-29 | 2023-02-17 | 山东大学 | Floating valve seat type ball valve driven by cam |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |
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| WD01 | Invention patent application deemed withdrawn after publication |