CN109780307A - A kind of pneumatic rail ball valve with buffering hydraulic damping device - Google Patents
A kind of pneumatic rail ball valve with buffering hydraulic damping device Download PDFInfo
- Publication number
- CN109780307A CN109780307A CN201910038010.7A CN201910038010A CN109780307A CN 109780307 A CN109780307 A CN 109780307A CN 201910038010 A CN201910038010 A CN 201910038010A CN 109780307 A CN109780307 A CN 109780307A
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- Prior art keywords
- hydraulic
- damping device
- ball valve
- pneumatic
- rail ball
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- 238000013016 damping Methods 0.000 title claims abstract description 29
- 230000003139 buffering effect Effects 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000010720 hydraulic oil Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 208000002925 dental caries Diseases 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 238000006317 isomerization reaction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The invention proposes a kind of pneumatic rail ball valves with buffering hydraulic damping device, including a pneumatic rail ball valve, a pneumatic actuator and a hydraulic damping device, it is characterized in that, the hydraulic damping device includes: hydraulic cylinder (1), hydraulic lower cover (2), hydraulic upper end cover (3), hydraulic piston (4), liquid presses piston pole (5) and throttle valve (6).The present invention solves pneumatic rail ball valve impact damage of helical orbit slot and wedge arm in opening-closing process, provides a kind of opening and closing gentle, good seal performance, operational torque low orbit ball valve.
Description
Technical field
The invention belongs to valve technology field more particularly to a kind of pneumatic rail balls with buffering hydraulic damping device
Valve.
Background technique
Pneumatic rail ball valve be widely applied need high sealing performance forced seal occasion-drier molecular sieve switching valve,
Ethylene, (adding hydrogen, measuring station, sled, low-temp methanol to wash, liquid nitrogen washing) natural gas in oil and gas fields treatment plant, platform, oil refining plus hydrogen, lighter hydrocarbons
Isomerization, naphtha isomerization, synthesis ammonia, PP, PE, PO, EOEG, MTBE, MTO etc..Ordinary ball valve uses under harsh operating condition,
Sealing damage is repeatedly opened in easy lumen fouling, causes to leak.So switch over travel is short at this time, opening and closing is lateral without rubbing, being sealed into
The orbit ball valve of wedging type forced seal is just used widely.
As shown in Figure 3 and Figure 4, orbit ball valve is on-off type control valve, which is equipped with helix angle
For 49 ° of guide grooves and 9 ° of wedge arm, sphere lower axle is supported using spherical structure and by body base, and sphere upper end is equipped with limit
Pin, and cooperating with valve rod wedge arm is contacted equipped with guide pin and with guide groove on bracket, when valve opening, in handwheel or actuator
Drive under, valve rod rises along guide groove, at this time sphere under the action of wedge arm, by far from sealing surface a side oscillation,
Make ball seal emaciated face from sealing surface of seat, when valve rod rises to guide groove corner, under the action of guide pin, valve rod will
Sphere rotation is driven, while valve rod continues to rise, until valve wide open.When valve is closed valve rod and sphere motion profile with it is above-mentioned
Situation is opposite.
Pneumatic rail ball valve excessive velocities in opening-closing process can make guide pin and spiral guide slot and spacer pin and wedge arm
Shock causes permanent damage, to make valve opening and closing torque increase extremely, creep, card resistance, seriously affect valve tightness
Energy.In order to avoid these problems generation, so valve is gentle as far as possible in opening-closing process, we, which design, thus is added hydraulic resistance
Buddhist nun's cushion cylinder.
Summary of the invention
The purpose of the present invention is to solve the shocks of pneumatic rail ball valve helical orbit slot and wedge arm in opening-closing process
Damage, provides the pneumatic rail ball valve with buffering hydraulic damping device.
The invention proposes a kind of pneumatic rail ball valves with buffering hydraulic damping device, including a pneumatic rail
Ball valve, a pneumatic actuator and a hydraulic damping device, the hydraulic damping device include: hydraulic cylinder, hydraulic lower end
Lid, hydraulic upper end cover, hydraulic piston, liquid presses piston pole and throttle valve；The hydraulic cylinder is hollow circle tube, the hydraulic cylinder
The upper and lower side of body sidewall is connected by screw to the hydraulic upper end cover and the hydraulic lower cover respectively, and the hydraulic piston is horizontal
Be divided into the inner cavity for being mounted on the hydraulic cylinder up and down two cavitys, the hydraulic piston by nut with it is described
Liquid presses piston pole is mutually fixed, and the liquid presses piston pole is extended downwardly from the circular hole in the hydraulic lower cover center downwards；The liquid
The inside of pressure upper end cover and the hydraulic lower cover is dug respectively sets connection inner cavity and extraneous duct, and the outside in the duct passes through
It is clamped pullover and connects hydraulic oil pipe, the throttle valve is connected by ferrule fitting between the hydraulic oil pipe, it is the cavity, described
Full hydraulic oil is filled in hydraulic oil pipe and the throttle valve；The hydraulic lower cover is mounted on the upper end of the pneumatic actuator,
The pneumatic actuator is mounted on the upper end of the pneumatic rail ball valve, the work of the liquid presses piston pole and the pneumatic actuator
Stopper rod connection, the piston rod of the pneumatic actuator are connected gearing with the valve rod of the pneumatic rail ball valve.
In the pneumatic rail ball valve with buffering hydraulic damping device proposed by the present invention, the hydraulic oil pipe is
Stainless steel tube.
In the pneumatic rail ball valve with buffering hydraulic damping device proposed by the present invention, the hydraulic lower cover
Circular hole in be equipped with sealing ring, the liquid presses piston pole pass through the sealing ring extend downwardly.
In the pneumatic rail ball valve with buffering hydraulic damping device proposed by the present invention, the throttle valve is needle
Type valve.
Compared with prior art, the invention has the following beneficial effects: the present invention makes to open and close using hydraulic damping device
Process gently carries out, and the rotation of spiral groove location guide pin is bonded gentle movement with helicla flute inner surface, and motion process is made to reach reason
It wants to claim, avoids hitting the damage to helicla flute, increase valve service life.Wedge arm position when wedge arm presses to spacer pin due to
Band buffer damping, wedge surface, which presses to spacer pin, so that spacer pin is rotated, and spacer pin is fitted closely with wedge surface, relatively flat slow-action is made, and make
Ball seal face is gradually inclined to valve seat and realizes sealing, extraordinary to protect wedge surface and sealing surface.The control of valve thrust can
Within the scope of control, conducive to the type selecting of executing agency, keep its more economical rationally.
Detailed description of the invention
Fig. 1 is the structural schematic diagram with the pneumatic rail ball valve of buffering hydraulic damping device.
Fig. 2 is the enlarged cross-sectional view of hydraulic damping device.
Fig. 3 is spiral guide slot schematic diagram in the prior art.
Fig. 4 is valve rod head wedge arm schematic diagram in the prior art.
In Fig. 1-4,10- pneumatic rail ball valve, 20- pneumatic actuator, 30- hydraulic damping device, 1- hydraulic cylinder, 2- liquid
Depress end cap, the hydraulic upper end cover of 3-, 4- hydraulic piston, 5- liquid presses piston pole, 6- throttle valve, 7- ferrule fitting, 8- hydraulic oil pipe.
Specific embodiment
Below in conjunction with schematic diagram to the pneumatic rail ball valve proposed by the present invention with buffering hydraulic damping device into
Row more detailed description, which show the preferred embodiment of the present invention, it should be appreciated that those skilled in the art can modify
The present invention of this description, and still realize advantageous effects of the invention.Therefore, following description should be understood as this field
Technical staff's is widely known, and is not intended as limitation of the present invention.
Referring particularly to Fig. 1 and Fig. 2, the invention proposes a kind of pneumatic rail balls with buffering hydraulic damping device
Valve, including 10, pneumatic actuators 20 of a pneumatic rail ball valve and a hydraulic damping device 30, hydraulic damping device 30
It include: hydraulic cylinder 1, hydraulic lower cover 2, hydraulic upper end cover 3, hydraulic piston 4, liquid presses piston pole 5 and throttle valve 6.Hydraulic cylinder
Body 1 is hollow circle tube, and the upper and lower side of 1 side wall of hydraulic cylinder is connected with hydraulic upper end cover 3 and hydraulic lower cover 2 by screw respectively
It connects, hydraulic piston 4, which is transversely mounted in the inner cavity of hydraulic cylinder 1, is divided into upper and lower two cavitys, and hydraulic piston 4 passes through spiral shell
Mother fixes with 5 phase of liquid presses piston pole, and liquid presses piston pole 5 is extended downwardly from the circular hole in hydraulic 2 center of lower cover downwards.Preferably,
Sealing ring is equipped in the circular hole of hydraulic lower cover 2, liquid presses piston pole 5 is extended downwardly across sealing ring.Hydraulic upper end cover 3 and hydraulic
The inside of lower cover 2 is dug respectively sets connection inner cavity and extraneous duct, and the outside in duct connects hydraulic oil pipe by clamping pullover
8, hydraulic oil pipe 8 is stainless steel tube.Throttle valve 6, cavity, 8 and of hydraulic oil pipe are connected by ferrule fitting 7 between hydraulic oil pipe 8
Full hydraulic oil is filled in throttle valve 6, throttle valve 6 is needle valve.Hydraulic lower cover 2 is mounted on the upper end of pneumatic actuator, pneumatically
Actuator is mounted on the upper end of pneumatic rail ball valve, and liquid presses piston pole 5 is connect with the piston rod of pneumatic actuator, pneumatic actuator
Piston rod be connected with the valve rod of pneumatic rail ball valve gearing.When work, connected with liquid presses piston pole 5 and pneumatic actuator piston rod
It connects, is full of hydraulic oil in hydraulic cylinder 1, liquid presses piston pole 5 pushes hydraulic piston 4 to move upwards when valve opening, cylinder body upper half
Portion's hydraulic oil, which flows through stainless steel tube, throttle valve 6, stainless steel tube, makes hydraulic oil return to cylinder body lower half, not by the control of throttle valve 6
Flow in rust steel pipe is adjusted to play the role of damping, and valve is opposite with above situation when closing.
The above is only a preferred embodiment of the present invention, does not play the role of any restrictions to the present invention.Belonging to any
Those skilled in the art, in the range of not departing from technical solution of the present invention, to the invention discloses technical solution and
Technology contents make the variation such as any type of equivalent replacement or modification, belong to the content without departing from technical solution of the present invention, still
Within belonging to the scope of protection of the present invention.
Claims (4)
1. a kind of pneumatic rail ball valve with buffering hydraulic damping device, including a pneumatic rail ball valve, one it is pneumatic
Actuator and a hydraulic damping device, which is characterized in that the hydraulic damping device includes: hydraulic cylinder (1), hydraulic lower end
Cover (2), hydraulic upper end cover (3), hydraulic piston (4), liquid presses piston pole (5) and throttle valve (6)；During the hydraulic cylinder (1) is
It is empty cylinder-shaped, the upper and lower side of hydraulic cylinder (1) side wall respectively with the hydraulic upper end cover (3) and the hydraulic lower cover
(2) be connected by screw to, the hydraulic piston (4) is transversely mounted in the inner cavity of the hydraulic cylinder (1) be divided on
Lower two cavitys, the hydraulic piston (4) are mutually fixed by nut with the liquid presses piston pole (5), the liquid presses piston pole (5)
It is extended downwardly from the circular hole in hydraulic lower cover (2) center downwards；The hydraulic upper end cover (3) and the hydraulic lower cover
(2) inside is dug respectively sets connection inner cavity and extraneous duct, and the outside in the duct connects hydraulic oil pipe by clamping pullover
(8), the throttle valve (6), the cavity, the hydraulic oil pipe are connected by ferrule fitting (7) between the hydraulic oil pipe (8)
(8) and in the throttle valve (6) full hydraulic oil is filled；The hydraulic lower cover (2) is mounted on the upper end of the pneumatic actuator,
The pneumatic actuator is mounted on the upper end of the pneumatic rail ball valve, the liquid presses piston pole (5) and the pneumatic actuator
Piston rod connection, the piston rod of the pneumatic actuator is connected gearing with the valve rod of the pneumatic rail ball valve.
2. the pneumatic rail ball valve according to claim 1 with buffering hydraulic damping device, which is characterized in that described
Hydraulic oil pipe (8) is stainless steel tube.
3. the pneumatic rail ball valve according to claim 1 with buffering hydraulic damping device, which is characterized in that described
Sealing ring is equipped in the circular hole of hydraulic lower cover (2), the liquid presses piston pole (5) passes through the sealing ring and extends downwardly.
4. the pneumatic rail ball valve according to claim 1 with buffering hydraulic damping device, which is characterized in that described
Throttle valve (6) is needle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910038010.7A CN109780307A (en) | 2019-01-16 | 2019-01-16 | A kind of pneumatic rail ball valve with buffering hydraulic damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910038010.7A CN109780307A (en) | 2019-01-16 | 2019-01-16 | A kind of pneumatic rail ball valve with buffering hydraulic damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109780307A true CN109780307A (en) | 2019-05-21 |
Family
ID=66499409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910038010.7A Pending CN109780307A (en) | 2019-01-16 | 2019-01-16 | A kind of pneumatic rail ball valve with buffering hydraulic damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109780307A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124190A (en) * | 2021-04-21 | 2021-07-16 | 四川九天真空科技股份有限公司 | Pneumatic rotary ball valve |
| CN113309871A (en) * | 2021-06-07 | 2021-08-27 | 自贡自高阀门有限公司 | Valve rod guide structure of forced sealing ball valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204004722U (en) * | 2014-08-19 | 2014-12-10 | 重庆川武仪表有限公司 | Balance cage type single seat regulating valve |
| CN106979352A (en) * | 2017-04-12 | 2017-07-25 | 圣博莱阀门有限公司 | The high temperature orbit ball valve used in molecular sieve device |
| CN207195713U (en) * | 2017-04-12 | 2018-04-06 | 圣博莱阀门有限公司 | The high temperature orbit ball valve used in molecular sieve device |
| CN108799539A (en) * | 2018-08-21 | 2018-11-13 | 江苏亿阀股份有限公司 | A kind of orbit ball valve with spiral valve rod |
| CN210141363U (en) * | 2019-01-16 | 2020-03-13 | 圣博莱阀门有限公司 | Pneumatic track ball valve with hydraulic damping device for buffering |
-
2019
- 2019-01-16 CN CN201910038010.7A patent/CN109780307A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204004722U (en) * | 2014-08-19 | 2014-12-10 | 重庆川武仪表有限公司 | Balance cage type single seat regulating valve |
| CN106979352A (en) * | 2017-04-12 | 2017-07-25 | 圣博莱阀门有限公司 | The high temperature orbit ball valve used in molecular sieve device |
| CN207195713U (en) * | 2017-04-12 | 2018-04-06 | 圣博莱阀门有限公司 | The high temperature orbit ball valve used in molecular sieve device |
| CN108799539A (en) * | 2018-08-21 | 2018-11-13 | 江苏亿阀股份有限公司 | A kind of orbit ball valve with spiral valve rod |
| CN210141363U (en) * | 2019-01-16 | 2020-03-13 | 圣博莱阀门有限公司 | Pneumatic track ball valve with hydraulic damping device for buffering |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124190A (en) * | 2021-04-21 | 2021-07-16 | 四川九天真空科技股份有限公司 | Pneumatic rotary ball valve |
| CN113309871A (en) * | 2021-06-07 | 2021-08-27 | 自贡自高阀门有限公司 | Valve rod guide structure of forced sealing ball valve |
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