CN108194654A - A kind of high-precision low torque regulation ball valve - Google Patents
A kind of high-precision low torque regulation ball valve Download PDFInfo
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- CN108194654A CN108194654A CN201711446718.3A CN201711446718A CN108194654A CN 108194654 A CN108194654 A CN 108194654A CN 201711446718 A CN201711446718 A CN 201711446718A CN 108194654 A CN108194654 A CN 108194654A
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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
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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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
-
- 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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
Abstract
The present invention provides a kind of high-precision low torque regulation ball valves, and including regulation ball valve main body, regulation ball valve main body includes valve body and valve ball, and valve seat buffer piston mechanism is provided in the regulation ball valve main body；The first gas chamber of sealing is formed between one end of valve seat support ring therein and valve seat spacing ring, first gas chamber is connected with the first gas connector being arranged on valve body；The second gas chamber of sealing is formed between the other end and valve body of the valve seat support ring, second gas chamber is connected with the second gas connector being arranged on valve body；The first gas intracavitary is equipped with disc spring.Air chamber can not only control valve seat movement, the cushioning effect in valve seat moving process can also be played, further, air chamber can form hyperbaric environment when inflating, avoid the leakage of regulation ball valve, so as to ensure after long-term use, the stroke of valve seat will not be blocked, therefore air chamber has multiple action by leakage substance.
Description
Technical field
The invention belongs to valve fields, are related to ball valve, and in particular to a kind of high-precision low torque regulation ball valve.
Background technology
Regulation ball valve, at present autoclave discharge line be mainly used for adjusting reaction kettle liquid level using more.Autoclave discharge
Pipeline, medium temperature is higher, containing solid particle.Medium erosion corrosion is serious, is not allow for leaking outside, and on-off times are frequent, at present
Many regulation ball valve row access cycles are no more than 1 week on domestic market, inlet valve row access cycle only 1 month,
Generally occur the perforation of valve body lid, at stuffing-box medium leakage crystallization clamping stagnation, valve seat breakage occur in leak etc. and to seriously affect pipeline
The phenomenon that normal operation, increases the labor intensity of shop floor worker, reduces the productivity effect of entire pipeline, increases the operation of enterprise
Cost, therefore there is an urgent need to develop a kind of regulating valves with the long life.
Common regulating valve in strong corrosive medium since medium temperature is higher and is easily crystallized for strong corrosive granule medium, often
The valve of rule frequently switches on action, easily erosion notch occurs in sealing surface and valve ball is made to form small guide vane with valve seat and washes away corruption
Erosion or stuck valve in order to improve the flushing resistance of valve, can make material surface cure process, and industry metal at present
Material also can only achieve 50~65HRC or so by Surface heat-treatent hardness highest, and valve makes under this small guide vane operating mode
It is still shorter with the service life.
Invention content
In view of the deficiencies of the prior art, the present invention intends to, a kind of high-precision low torque regulation ball valve is provided,
Solve the technical issues of regulation ball valve service life of the prior art is short.
In order to solve the above-mentioned technical problem, the present invention is realised by adopting the following technical scheme：
A kind of high-precision low torque regulation ball valve, including regulation ball valve main body, regulation ball valve main body includes valve body and valve
Ball is provided with valve seat buffer piston mechanism in the regulation ball valve main body；
The valve seat buffer piston mechanism includes the valve seat that can be contacted with valve ball, and valve seat is placed in valve seat support ring
And pass through valve seat pressure ring and be fixedly mounted in valve seat support ring, valve seat support ring is sleeved in valve seat spacing ring and can be relative to
Valve seat spacing ring stretching motion, valve seat spacing ring are fixedly mounted on valve body；
The first gas chamber of sealing, first gas chamber are formed between one end of the valve seat support ring and valve seat spacing ring
It is connected with the first gas connector being arranged on valve body；Sealing is formed between the other end and valve body of the valve seat support ring
Second gas chamber, second gas chamber is connected with the second gas connector being arranged on valve body；
The first gas intracavitary is equipped with disc spring, and one end of disc spring withstands on the support protrusion of valve seat support ring end
On, the other end of disc spring withstands on the end of valve seat spacing ring.
The present invention also has following distinguishing feature：
Position in the valve seat support ring close to the second gas control chamber is additionally provided with guide cylinder, is provided with and leads on valve body
To the matched directed cavity of cylinder, guide cylinder is sleeved in directed cavity can be along the inner wall stretching motion of directed cavity.
The regulation ball valve main body is the regulation ball valve of single valve holder structure.
The regulation ball valve main body includes valve body and valve ball, and valve ball is mounted in the valve ball installation cavity in valve body, valve ball
On be machined with medium runner, medium inlet corresponding with medium runner and media outlet are provided on valve body, is entered close to medium
Valve seat is provided in the valve body of mouth, valve deck is installed on media outlet；
The top of perpendicular media runner axis is equipped with valve rod on the valve ball, perpendicular media runner axis on valve ball
Bottom end pivot is installed, be pivotally mounted on valve body and can be rotated with valve ball, the valve rod stretches out valve body and being capable of band
Dynamic valve ball rotation；The end that the valve rod stretches out valve body passes through upper flange, and upper flange is fixedly mounted on valve body；The pivot
Lower flange on the valve body where axis bottom end is installed, adjusting screw is installed on lower flange, the end of adjusting screw, which is withstood on, puts
It puts on the adjusting pad of pivot bottom end.
The end that the valve rod stretches out valve body is equipped with actuating sleeve, and actuating sleeve is rack-mount, and stent is fixedly mounted
On valve body, backplate is also equipped on stent.
Cavity bush assembly is additionally provided in valve ball installation cavity in the valve body.
The cavity bush assembly includes the epicoele body bushing being sleeved on valve rod, the lower chamber being sleeved on pivot lining
It covers, mounted on downstream bushing of the valve ball installation cavity close to media outlet position, the bonnet bush in valve deck, upper cavity lining
Bushing pressure ring is installed, downstream bushing and bonnet bush squeeze contact between set, cavity of resorption body bushing and downstream bushing.
Axle sleeve between the valve rod and epicoele body bushing is installed, is also installed between the pivot and cavity of resorption body bushing
There is axle sleeve.
Multi-sealed resistive connection crystalline substance component is also equipped in the regulation ball valve main body.
The multi-sealed resistive connection crystalline substance component includes：
The upper packing layer and lower packing layer being arranged between upper flange and valve rod；
The thrust pad and gasket seal being arranged between upper flange and valve body；
The washer and O-ring seals being arranged between valve rod and valve body；
The O-ring seals being arranged between pivot and valve body；
The gasket seal and O-ring seals being arranged between lower flange and valve body；
The O-ring seals being arranged between lower flange and adjusting screw；
The O-ring seals being arranged between cavity bush assembly and valve body；
The baffle ring and O-ring seals being arranged between valve rod and epicoele body bushing；
The baffle ring and O-ring seals being arranged between pivot and cavity of resorption body bushing；
The O-ring seals being arranged between valve deck and bonnet bush；
The baffle ring and O-ring seals being arranged between valve seat support ring and valve body；
The O-ring seals being arranged between valve seat spacing ring and valve body；
The baffle ring and O-ring seals being arranged between valve seat support ring and valve seat spacing ring；
The O-ring seals being arranged between valve seat support ring and valve seat.
Compared with prior art, the present invention it has the following technical effect that：
(I) regulation ball valve of the invention is the pneumatic valve seat construction of double acting, and valve seat can be programmed relative to valve ball by PLC
Gas control adjusting is carried out, is contacted when avoiding valve ball rotation with valve seat, reduces actuator torque, improves the adjusting essence of regulating valve
Degree, then the service life of ceramic valve ball and valve seat is significantly promoted.Disc spring buffers and first gas chamber avoids second gas
Chamber vent valve seat moment is attached to the shock of ball surface generation so as to make to avoid ceramic member impact for a long time and damages.
(II) air chamber can not only control valve seat movement, moreover it is possible to play the cushioning effect in valve seat moving process, more
Further, hyperbaric environment can be formed when air chamber is inflated, avoids the leakage of regulation ball valve, so as to ensure after long-term use,
The stroke of valve seat will not be blocked, therefore air chamber has multiple action by leakage substance.
(III) multi-sealed can effectively be isolated in medium prevents medium from penetrating into outside, so as to avoid causing valve card
Stagnant, abrasion then causes phenomena such as leakage.
(IV) since discharge kettle pipeline medium easily accumulates crystallization so valve designs single valve holder structure, when valve small guide vane
The medium fast flush that lumen is accumulated can be taken away prevents medium accumulation crystallization clamping stagnation valve.
Description of the drawings
Fig. 1 is the positive schematic cross-sectional view of the present invention.
Fig. 2 is the side schematic cross-sectional view of the present invention.
Fig. 3 is the external structure schematic diagram of the present invention.
Fig. 4 be I in Fig. 1 at close-up schematic view.
The meaning of each label is in figure：1- valve bodies, 2- valve balls, 3- valve seats, 4- valve seat support rings, 5- valve seat pressure rings, 6-
Valve seat spacing ring, 7- first gas chambers, 8- first gas connectors, 9- second gas chambers, 10- second gas connectors, 11- disc springs,
12- guide cylinders, 13- directed cavities, 14- valve ball installation cavitys, 15- medium runners, 16- medium inlets, 17- media outlets, 18- valves
Lid, 19- valve rods, 20- pivots, 21- upper flanges, 22- lower flanges, 23- adjusting screws, 24- adjusting pads, 25- actuating sleeves, 26- branch
Frame, 27- backplates, 28- epicoele body bushings, 29- cavity of resorption body bushings, 30- downstreams bushing, 31- bonnet bush, 32- bushing pressure rings,
33- axle sleeves, the upper packing layers of 34-, packing layer under 35-, 36-O shape sealing rings, 37- thrust pads, 38- gasket seals, 39- washers,
40- baffle rings, 41- cavity bush assemblies.
Explanation is further explained in detail to the particular content of the present invention with reference to embodiments.
Specific embodiment
China's wet process smelting technique has reached sizable commercial production scale by the research and development of many decades, and
Unprecedented speed is into the industrial major technique direction of coloured industry, before high industrial value and development
Scape, the scheme of the application can effectively shorten China and the external gap on wet process smelting technique, greatly reduce coloured industry pair
The discharge of environment harmful gas.What the application was adapted at present is exactly hydrometallurgy autoclave discharge line valve, it is believed that with
The large-scale popularization of wet process smelting technique, the development of the valve will have a vast market prospect and environmental protection effect.
Above-mentioned technical proposal is deferred to, specific embodiments of the present invention are given below, it should be noted that not office of the invention
It is limited to specific examples below, all equivalents done on the basis of technical scheme each fall within the protection model of the present invention
It encloses.
Embodiment 1：
The present embodiment provides a kind of high-precision low torque regulation ball valve, as shown in Figures 1 to 4, including regulation ball valve main body,
Regulation ball valve main body includes valve body 1 and valve ball 2, and valve seat buffer piston mechanism is provided in the regulation ball valve main body；
The valve seat buffer piston mechanism includes the valve seat 3 that can be contacted with valve ball 2, and valve seat 3 is placed on valve seat support
In ring 4 and pass through valve seat pressure ring 5 and be fixedly mounted in valve seat support ring 4, valve seat support ring 4 be sleeved in valve seat spacing ring 6 and
It can be fixedly mounted on valve body 1 relative to 6 stretching motion of valve seat spacing ring, valve seat spacing ring 6；
The first gas chamber 7 of sealing, the first gas are formed between one end of the valve seat support ring 4 and valve seat spacing ring 6
Body cavity 7 is connected with the first gas connector 8 being arranged on valve body 1；The other end and valve body 1 of the valve seat support ring 4 it
Between form the second gas chamber 9 of sealing, second gas chamber 9 is connected with the second gas connector 10 being arranged on valve body 1；
Disc spring 11 is installed, one end of disc spring 11 withstands on the support of 4 end of valve seat support ring in the first gas chamber 7
In protrusion, the other end of disc spring 11 withstands on the end of valve seat spacing ring 6.
Disc spring 11 is bonded valve ball 2 for valve seat 3 and provides cushion effect, avoids 10 air inlet of second gas chamber that 3 moment of valve seat is pasted
Frictional force when closing valve ball 2 and generate shock, while can overcome the valve seat 3 to move ensures the separation of valve seat 3 and valve ball 2, this double cropping
It is equal when with piston structure, not only disc spring 11 provides cushion effect, first gas chamber 7 and second gas chamber 9 as exhaust outlet for valve seat 3
The action state of valve seat 3 can be slowed down.
As a kind of preferred embodiment of the present embodiment, the position in valve seat support ring 4 close to the second gas control chamber 9 is additionally provided with
Guide cylinder 12, be provided on valve body 1 with 12 matched directed cavity 13 of guide cylinder, guide cylinder 12 is sleeved on can in directed cavity 13
Along the inner wall stretching motion of directed cavity 13.
As a kind of concrete scheme of the present embodiment, regulation ball valve main body is the regulation ball valve of single valve holder structure.Specifically,
Regulation ball valve main body includes valve body 1 and valve ball 2, and valve ball 2 is mounted in the valve ball installation cavity 14 in valve body 1, is machined on valve ball 2
Medium runner 15, be provided on valve body 1 with 15 corresponding medium inlet 16 of medium runner and media outlet 17, enter close to medium
Valve seat 3 is provided in the valve body 1 of mouth 16, valve deck 18 is installed on media outlet 17；
The top of 15 axis of perpendicular media runner is equipped with valve rod 19 on the valve ball 2, perpendicular media runner on valve ball 2
The bottom end of 15 axis is equipped with pivot 20, and pivot 20 is mounted on valve body 1 and can be rotated with valve ball 2, the valve rod 19
It stretches out valve body 1 and valve ball 2 can be driven to rotate；The end that the valve rod 19 stretches out valve body 1 passes through upper flange 21, upper flange 21
It is fixedly mounted on valve body 1；Lower flange 22 is installed on valve body 1 where 20 bottom end of pivot, is installed on lower flange 22
There is adjusting screw 23, the end of adjusting screw 23 is withstood on the adjusting pad 24 for being placed on 20 bottom end of pivot.
As a kind of preferred embodiment of the present embodiment, the end that valve rod 19 stretches out valve body 1 is equipped with actuating sleeve 25, actuating sleeve
25 are mounted in stent 26, and stent 26 is fixedly mounted on valve body 1, and backplate 27 is also equipped on stent 26.
As a kind of preferred embodiment of the present embodiment, cavity bushing group is additionally provided in the valve ball installation cavity 14 in valve body 1
Part 41.Specifically, under cavity bush assembly 41 includes the epicoele body bushing 28 being sleeved on valve rod 19, is sleeved on pivot 20
Cavity bushing 29, mounted on valve ball installation cavity 14 close to the downstream bushing 30 of 17 position of media outlet, in valve deck 18
Bonnet bush 31 is equipped with bushing pressure ring 32, downstream bushing between epicoele body bushing 28, cavity of resorption body bushing 29 and downstream bushing 30
30 and bonnet bush 31 squeeze contact.
Cavity bush assembly 41 is often protected since this pipeline valve washes away especially severe and regulation ball valve valve seat 3 with valve ball 2
Small guide vane is held, small guide vane jet stream holds very much at this time generates flash distillation or cavitation so as to aggravate valve in gas, liquid, solid three-phase flow
Wash away phenomenon in order to improve the service life of valve, has done compatible experiment and the washout test of a large amount of mixture condition reduction and simulations,
So as to select suitable resistance to erosion, corrosion-resistant ceramic material, and obtained using ANSYS flow field simulations analysis and wash away serious area
Domain figure then effectively improves valve service life so as to which these regions are carried out with ceramic protection.
As a kind of preferred embodiment of the present embodiment, axle sleeve 33 is installed between valve rod 19 and epicoele body bushing 28, it is described
Pivot 20 and cavity of resorption body bushing 29 between axle sleeve 33 is also installed.
As a kind of preferred embodiment of the present embodiment, multi-sealed resistive connection crystalline substance component is also equipped in regulation ball valve main body.
Specifically, multi-sealed resistive connection crystalline substance component includes：
The upper packing layer 34 and lower packing layer 35 being arranged between upper flange 21 and valve rod 19；
The thrust pad 37 and gasket seal 38 being arranged between upper flange 21 and valve body 1；
The washer 39 and O-ring seals 36 being arranged between valve rod 19 and valve body 1；
The O-ring seals 36 being arranged between pivot 20 and valve body 1；
The gasket seal 38 and O-ring seals 36 being arranged between lower flange 22 and valve body 1；
The O-ring seals 36 being arranged between lower flange 22 and adjusting screw 23；
The O-ring seals 36 being arranged between cavity bush assembly and valve body 1；
The baffle ring 40 and O-ring seals 36 being arranged between valve rod 19 and epicoele body bushing 28；
The baffle ring 40 and two O-ring seals 36 being arranged between pivot 20 and cavity of resorption body bushing 29；
The O-ring seals 36 being arranged between valve deck 18 and bonnet bush 31；
The baffle ring 40 and O-ring seals 36 being arranged between valve seat support ring 4 and valve body 1；
The O-ring seals 36 being arranged between valve seat spacing ring 5 and valve body 1；
The baffle ring 40 and O-ring seals 36 being arranged between valve seat support ring 4 and valve seat spacing ring 5；
The O-ring seals 36 being arranged between valve seat support ring 4 and valve seat 3.
Multi-sealed resistive connection crystalline substance component forms valve rod 19 four sealings, since corrosive medium temperature is higher, in order to avoid
At filler high-temerature creep stuffing-box leak, herein sealing structure we be added to mobile load spring mechanism, to compensate filler under high temperature
Deformation, so as to ensure at valve rod will not to be revealed because of there is medium infiltration that clamping stagnation is caused to wear.
The regulation ball valve of the present embodiment is in use, the valve is the pneumatic valve seat construction of double acting, first gas connector 8 and the
Two gas connections 10 connect air source, are controlled by two five-way electromagnetic valves, and valve rod 19 drives the original state before the rotation of valve ball 2, gives
First gas chamber 7 is ventilated, and second gas chamber 9 is vented, and disc spring 11 is compressed, and valve seat 3 is under the drive of valve seat support ring 4 towards Jie
The direction movement of matter entrance 16 so that valve seat 3 is detached with valve ball 2.Valve rod 19 drives the opening and closing of the rotation realization valve of valve ball 2, when
It after valve ball 2 stops operating, is vented to first gas chamber 7, second gas chamber 9 is ventilated so that valve seat 3 is bonded with valve ball 2, is realized close
Envelope adjusts flow.This regulative mode makes valve ball 2 actuator torque not made significantly to drop by the frictional force of valve seat 3 in rotation
Grade improves the conciliation precision of the patent valve so as to reduce the dead zone that valve is generated because of frictional force, reduces valve ball 2 and rotates
When the power born improve the service life of ceramic valve ball.
Claims (10)
1. a kind of high-precision low torque regulation ball valve, including regulation ball valve main body, regulation ball valve main body includes valve body (1) and valve
Ball (2), which is characterized in that valve seat buffer piston mechanism is provided in the regulation ball valve main body；
The valve seat buffer piston mechanism includes the valve seat (3) that can be contacted with valve ball (2), and valve seat (3) is placed on valve seat branch
In pushing out ring (4) and pass through valve seat pressure ring (5) and be fixedly mounted in valve seat support ring (4), valve seat support ring (4) is sleeved on valve seat limit
In position ring (6) and it can be fixedly mounted on valve body (1) relative to valve seat spacing ring (6) stretching motion, valve seat spacing ring (6)；
Form the first gas chamber (7) of sealing between one end of the valve seat support ring (4) and valve seat spacing ring (6), first
Air chamber (7) is connected with the first gas connector (8) being arranged on valve body (1)；The other end of the valve seat support ring (4)
The second gas chamber (9) of sealing, second gas chamber (9) and the second gas being arranged on valve body (1) are formed between valve body (1)
Connector (10) is connected；
Disc spring (11) is installed in the first gas chamber (7), one end of disc spring (11) withstands on valve seat support ring (4) end
In support protrusion, the other end of disc spring (11) withstands on the end of valve seat spacing ring (6).
2. high-precision low torque regulation ball valve as described in claim 1, which is characterized in that in the valve seat support ring (4)
Guide cylinder (12) is additionally provided with close to the position of the second gas control chamber (9), is provided on valve body (1) matched with guide cylinder (12)
Directed cavity (13), guide cylinder (12) is sleeved on can be along the inner wall stretching motion of directed cavity (13) in directed cavity (13).
3. high-precision low torque regulation ball valve as described in claim 1, which is characterized in that the regulation ball valve main body is single
The regulation ball valve of valve seat construction.
4. high-precision low torque regulation ball valve as claimed in claim 3, which is characterized in that the regulation ball valve main body includes
Valve body (1) and valve ball (2), valve ball installation cavity (14) of the valve ball (2) in valve body (1) is interior, and valve ball is machined with medium on (2)
Runner (15), be provided on valve body (1) with medium runner (15) corresponding medium inlet (16) and media outlet (17), it is close
Valve seat (3) is provided in the valve body (1) of medium inlet (16), valve deck (18) is installed on media outlet (17)；
The top of perpendicular media runner (15) axis is equipped with valve rod (19) on the valve ball (2), perpendicular media on valve ball (2)
The bottom end of runner (15) axis is equipped with pivot (20), and pivot (20) is on valve body (1) and can turn with valve ball (2)
Dynamic, the valve rod (19) stretches out valve body (1) and valve ball (2) can be driven to rotate；The valve rod (19) stretches out valve body (1)
End passes through upper flange (21), and upper flange (21) is fixedly mounted on valve body (1)；Valve body where described pivot (20) bottom end
(1) lower flange (22) on is installed, adjusting screw (23) is installed on lower flange (22), the end of adjusting screw (23) is withstood on
It is placed on the adjusting pad (24) of pivot (20) bottom end.
5. high-precision low torque regulation ball valve as claimed in claim 4, which is characterized in that the valve rod (19) stretches out valve body
(1) end is equipped with actuating sleeve (25), and for actuating sleeve (25) in stent (26), stent (26) is fixedly mounted on valve body
(1) on, backplate (27) is also equipped on stent (26).
6. high-precision low torque regulation ball valve as claimed in claim 4, which is characterized in that the valve in the valve body (1)
Cavity bush assembly (41) is additionally provided in ball installation cavity (14).
7. high-precision low torque regulation ball valve as claimed in claim 6, which is characterized in that the cavity bush assembly (41)
Including the epicoele body bushing (28) being sleeved on valve rod (19), the cavity of resorption body bushing (29) being sleeved on pivot (20), it is mounted on
Valve ball installation cavity (14) is close to the downstream bushing (30), the bonnet bush in valve deck (18) of media outlet (17) position
(31), bushing pressure ring (32), downstream lining are installed between epicoele body bushing (28), cavity of resorption body bushing (29) and downstream bushing (30)
It covers (30) and bonnet bush (31) squeezes contact.
8. high-precision low torque regulation ball valve as claimed in claim 7, which is characterized in that the valve rod (19) and upper cavity
Axle sleeve (33) between bushing (28) is installed, axle sleeve is also installed between the pivot (20) and cavity of resorption body bushing (29)
(33)。
9. high-precision low torque regulation ball valve as claimed in claim 7, which is characterized in that in the regulation ball valve main body also
Multi-sealed resistive connection crystalline substance component is installed.
10. high-precision low torque regulation ball valve as claimed in claim 9, which is characterized in that the multi-sealed resistive connection is brilliant
Component includes：
The upper packing layer (34) and lower packing layer (35) being arranged between upper flange (21) and valve rod (19)；
The thrust pad (37) and gasket seal (38) being arranged between upper flange (21) and valve body (1)；
The washer (39) and O-ring seals (36) being arranged between valve rod (19) and valve body (1)；
The O-ring seals (36) being arranged between pivot (20) and valve body (1)；
The gasket seal (38) and O-ring seals (36) being arranged between lower flange (22) and valve body (1)；
The O-ring seals (36) being arranged between lower flange (22) and adjusting screw (23)；
The O-ring seals (36) being arranged between cavity bush assembly and valve body (1)；
The baffle ring (40) and O-ring seals (36) being arranged between valve rod (19) and epicoele body bushing (28)；
The baffle ring (40) being arranged between pivot (20) and cavity of resorption body bushing (29) and two O-ring seals (36)；
The O-ring seals (36) being arranged between valve deck (18) and bonnet bush (31)；
The baffle ring (40) and O-ring seals (36) being arranged between valve seat support ring (4) and valve body (1)；
The O-ring seals (36) being arranged between valve seat spacing ring (5) and valve body (1)；
The baffle ring (40) and O-ring seals (36) being arranged between valve seat support ring (4) and valve seat spacing ring (5)；
The O-ring seals (36) being arranged between valve seat support ring (4) and valve seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446718.3A CN108194654A (en) | 2017-12-27 | 2017-12-27 | A kind of high-precision low torque regulation ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446718.3A CN108194654A (en) | 2017-12-27 | 2017-12-27 | A kind of high-precision low torque regulation ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194654A true CN108194654A (en) | 2018-06-22 |
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ID=62584632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711446718.3A Pending CN108194654A (en) | 2017-12-27 | 2017-12-27 | A kind of high-precision low torque regulation ball valve |
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| Country | Link |
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| CN (1) | CN108194654A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425298A (en) * | 2019-07-31 | 2019-11-08 | 固安沃克流体控制有限公司 | A kind of upper-mounting type ball valve |
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| CN202790657U (en) * | 2012-05-27 | 2013-03-13 | 重庆海王仪器仪表有限公司 | Ball valve special for nitrogen-oxygen |
| CN203686216U (en) * | 2013-11-30 | 2014-07-02 | 天津渤海阀门集团有限公司 | Zero-friction opening and closing ball valve |
| CN206522465U (en) * | 2016-12-27 | 2017-09-26 | 西安航天远征流体控制股份有限公司 | A kind of anticorrosive resistive connection crystalline substance switch ceramic ball valve |
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|---|---|---|---|---|
| JPS61282674A (en) * | 1985-06-07 | 1986-12-12 | Hatanaka Tokushu Valve Kogyo Kk | Valve-body supporting apparatus in ball valve |
| JPS63195476A (en) * | 1987-02-06 | 1988-08-12 | Tesuko:Kk | Ball valve |
| US5533738A (en) * | 1994-07-01 | 1996-07-09 | Borsig Kugelhahn Gmbh | Pressure controlled apparatus for sealing shutoff devices located in pipelines |
| DE19544901A1 (en) * | 1995-12-01 | 1997-06-05 | Rheinauer Maschinen & Armature | Pipe stop-valve, particularly ball-cock |
| CN1673593A (en) * | 2005-04-06 | 2005-09-28 | 杨荣水 | Operating mechanism for superhigh-temperature and-pressure fast three-way change valve |
| CN201539594U (en) * | 2009-05-15 | 2010-08-04 | 启东远大阀门有限公司 | Inflatable no-wear ball valve |
| CN202790657U (en) * | 2012-05-27 | 2013-03-13 | 重庆海王仪器仪表有限公司 | Ball valve special for nitrogen-oxygen |
| CN203686216U (en) * | 2013-11-30 | 2014-07-02 | 天津渤海阀门集团有限公司 | Zero-friction opening and closing ball valve |
| CN206522465U (en) * | 2016-12-27 | 2017-09-26 | 西安航天远征流体控制股份有限公司 | A kind of anticorrosive resistive connection crystalline substance switch ceramic ball valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425298A (en) * | 2019-07-31 | 2019-11-08 | 固安沃克流体控制有限公司 | A kind of upper-mounting type ball valve |
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