CN108518494A - A kind of piston fluid control valve - Google Patents
A kind of piston fluid control valve Download PDFInfo
- Publication number
- CN108518494A CN108518494A CN201810550805.1A CN201810550805A CN108518494A CN 108518494 A CN108518494 A CN 108518494A CN 201810550805 A CN201810550805 A CN 201810550805A CN 108518494 A CN108518494 A CN 108518494A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- piston cylinder
- valve
- spool
- 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
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 230000008859 change Effects 0.000 abstract description 12
- 239000010720 hydraulic oil Substances 0.000 abstract description 11
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- 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
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Actuator (AREA)
Abstract
The present invention relates to valve fields, more particularly to a kind of piston fluid control valve, with valve body, spool, valve seat, valve rod, piston cylinder, piston is equipped in piston cylinder, one end of valve rod connects piston, and the other end connects spool, access port is equipped on the upper and lower sides cylinder side wall of piston cylinder, it is characterized in that, piston cylinder side is provided with auxiliary bradyseism cylinder.Assist the setting of bradyseism cylinder, when spool being made to be caused hydraulic pressure to fluctuate by instant impact, hydraulic oil can enter auxiliary bradyseism cylinder, Wave energy is absorbed by sliding block compressed spring, the movement of sliding block simultaneously changes the size in auxiliary bradyseism cylinder space one and space two, movement with piston cylinder inner carrier causes the change of upper and lower sides space size mutually to compensate, lateral pressure is substantially steady up and down for piston, the both sides above and below piston will not be changed because of volume and generate pressure difference, the energy that spool instant impact transmits only is put aside in the spring, it is also gentler when release, effectively reduce vibration.
Description
Technical field
The present invention relates to valve field, especially a kind of good piston fluid control valve of spool resistance to shock.
Background technology
Pneumatic control valve is chiefly used in the control of fluid media (medium) conveyance conduit in petroleum chemical industry, due to using high pressure gas
Control, energy consumption is big, and the driving force provided is small, and gas compressibility is big, makes this kind of valve front and back pressure medium in use
When change dramatically, pressure medium is more than the pressure that gas is applied to spool by piston, can cause the vibration of spool, such as regulating valve
The shut-off valve at both ends is opened or is closed suddenly suddenly, and the medium drastically flowed can be made to generate strong reflection and rush wave, wave impact control is rushed in reflection
The spool of valve can make spool move up generation vibration when this power is more than the valve rod pressure downward to spool；And valve is closing valve
When, the power that high pressure gas is applied to piston is a continuous increased power, when this power is not much different with fluid medium pressure,
Spool may be caused frequently to be hit with valve seat, to influence the spool service life.Currently used increase valve body rigidity is to anti-vibration
Method mainly spring is installed in piston cylinder, when pressure medium increase, it is required rigidity increase when, then replace the coefficient of stiffiness more
Big spring.But not only spring replaces intricate operation, and speed is still very fast when elastic force release, is applied to one punching of spool
Hit power.
Invention content
The deficiency of present situation in view of the above technology, the main purpose of the present invention is to provide a kind of good pistons of resistance to shock
Formula flow control valve, using liquid driven piston, the driving force that can apply is big, and liquid compression is small, and piston is hit shifting
In addition dynamic amplitude smaller is arranged auxiliary bradyseism cylinder identical with piston cylinder in piston cylinder side, assists bradyseism to reduce vibration
Setting spring and sliding block in cylinder change the cylinder inner volume of piston cylinder upper and lower sides using the sliding of sliding block and spring force are coordinated to realize valve
The absorption of core instant impact and slow release reduce the vibration of spool.
The technical solution adopted by the present invention is：A kind of piston fluid control valve, have valve body, spool, valve seat, valve rod,
Piston cylinder, piston cylinder is interior to be equipped with piston, and one end of valve rod connects piston, and the other end connects spool, the upper and lower sides cylinder body of piston cylinder
Access port is equipped on side wall, which is characterized in that piston cylinder side is provided with auxiliary bradyseism cylinder, and auxiliary bradyseism cylinder interior is equipped with
Sliding block, sliding block will assist bradyseism cylinder interior to be divided into space one and space two, spring, the space one are mounted in two spaces
It is linked together by channel one and cylinder body on the upside of piston cylinder, the space two is connect by channel two with cylinder body on the downside of piston cylinder
Together.
Guide sleeve is equipped on the downside of the pedestal and piston cylinder of the piston cylinder between cylinder body, for preventing hydraulic oil from revealing and right
Valve rod is oriented to constraint, prevents valve rod from tilting.
The upper flange of valve body, upper cover body and piston cylinder pedestal are integrally connected together using stud, enhanced
Structural compactness saves installation space to enhance valve body stability.
Certain distance is reserved in the channel one with piston cylinder top, and a spacing is reserved in the channel two with piston cylinder lower part
From, the channel one or channel two can be blocked when the sliding block slides into channel one or channel two, prevent hydraulic oil continue
Into auxiliary bradyseism cylinder spring failure is caused to anti-limited slip block excess compression spring.
Reinforcing arc panel is installed on valve seat upper body side wall, reinforcing arc is also installed on valve seat lower body side wall
Plate, to enhance resistance of the valve body to fluid erosion.
Compared with the prior art, the advantages of the present invention are as follows：
1, using hydraulic-driven replace drive of high-pressure gas, it is possible to provide driving force bigger, be applicable to the big valve port of big flow
Valve, and liquid compression is small, when spool is by instant impact, moves up amplitude smaller, flow is more stable；
2, the setting for assisting bradyseism cylinder, when spool being made to be caused hydraulic pressure to fluctuate by instant impact, hydraulic oil can enter auxiliary bradyseism
Cylinder absorbs Wave energy by sliding block compressed spring, while the movement of sliding block changes auxiliary bradyseism cylinder space one and space two
Size, the movement with piston cylinder inner carrier causes the change of upper and lower sides space size mutually to compensate, and lateral pressure is basic up and down for piston
Steadily, the both sides above and below piston will not be changed because of volume and generate pressure difference, the energy that spool instant impact transmits only is put aside in bullet
It is also gentler when release in spring, effectively reduce vibration.
3, piston cylinder pedestal and valve body upper flange, upper cover body are directly linked together by stud, and it is tight to enhance structure
Gathering property, saves installation space, and valve body stability is also stronger.
Description of the drawings
Fig. 1 is prior art pneumatic valve configurations schematic diagram；
Fig. 2 is the application piston fluid control valve structural schematic diagram；
Fig. 3 is the application piston cylinder and auxiliary bradyseism cylinder structure schematic diagram；
In figure：1, valve body, 2, spool, 3, valve seat, 4, valve rod, 5, piston cylinder, 6, auxiliary bradyseism cylinder, 7, piston, 8, on connect
Entrance, 9, lower access port, 10, sliding block, 11, spring I, 12, spring II, 13, channel one, 14, channel two, 15, guide sleeve, 16,
Upper flange, 17, upper cover body, 18, piston cylinder pedestal, 19, stud, 20, arc panel I, 21, arc panel II, 22, thread seal
Pin.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
Illustrate the implementation of the present invention by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Refering to attached drawing, structure, ratio, size etc. depicted in this specification institute accompanying drawings, only coordinating specification
Revealed content is not limited to the enforceable restriction item of the present invention so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of present invention can be generated and the purpose that can reach, it should all still fall and obtain and can contain in disclosed technology contents
In the range of lid.Meanwhile cited position restriction term in this specification, it is merely convenient to being illustrated for narration, rather than to
It limits the scope of the invention, relativeness is altered or modified, in the case where changing technology contents without essence, when being also considered as
The enforceable scope of the present invention.
2 and Fig. 3 further illustrates the present invention technical solution below in conjunction with the accompanying drawings：
As shown in Fig. 2, a kind of piston fluid control valve, has valve body 1, spool 2, valve seat 3, valve rod 4, piston cylinder 5, it is living
Piston 7 is equipped in plug cylinder 5, one end of valve rod 4 connects piston 7, and the other end connects spool 2, the upper and lower sides cylinder side wall of piston cylinder 5
It is equipped with upper access port 8 and lower access port 9, which is characterized in that 5 side of piston cylinder is provided with auxiliary bradyseism cylinder 6, assists bradyseism cylinder
Sliding block 10 is installed, sliding block 10 will assist being divided into space one and space two inside bradyseism cylinder 6, pacify respectively in two spaces inside 6
Equipped with spring I11 and spring II12, the space one is linked together by channel 1 and 5 upside cylinder body of piston cylinder, described
Space two is linked together by channel 2 14 and 5 downside cylinder body of piston cylinder.
Guide sleeve 15 is equipped between the 5 downside cylinder body of pedestal 18 and piston cylinder of the piston cylinder 5, for preventing hydraulic oil from letting out
Reveal and constraint is oriented to valve rod 4, prevents valve rod 4 from tilting.
The upper flange 16 of valve body 1, upper cover body 17 and piston cylinder pedestal 18 are integrally connected together using stud 19,
Structural compactness is enhanced, to enhance valve body stability, saves installation space.
Reserve certain distance between 5 top of the channel 1 and piston cylinder, the channel 2 14 and 5 lower part of piston cylinder it
Between reserve certain distance, can be by the channel 1 or channel two when the sliding block 10 slides into channel 1 or channel 2 14
14 block, and hydraulic oil is prevented to go successively to auxiliary bradyseism cylinder 6, thus anti-limited slip block 10 excess compression spring I11 or spring II12,
Cause spring failure.6 top of auxiliary bradyseism cylinder is additionally provided with thread seal pin 22, for being sealed to auxiliary bradyseism cylinder 6.
It is equipped on 3 upper body of valve seat, 1 side wall and strengthens arc panel I20, be also equipped on 3 lower body of valve seat, 1 side wall
Strengthen arc panel II21, to enhance resistance of the valve body to fluid erosion.
The piston fluid control valve operation principle of the present invention is as follows：
When needing spool to move down, hydraulic oil is added into piston cylinder 5 by upper access port 8, hydraulic oil pushes under piston 7
It moves to move down with movable valve plug 2, when needing spool to move up, hydraulic oil, hydraulic pressure is added into piston cylinder 5 by lower access port 9
Oil pushes piston 7 to move up to move up with movable valve plug 2.
When the impact force that spool 2 is transmitted by the variation of working fluid medium instantaneous pressure, spool 2 is pushed by valve rod 4 and is lived
Plug 7 generates the trend moved up, and the hydraulic oil of 7 upside of piston is forced through channel 1 and enters in auxiliary bradyseism cylinder 6, and pushes away
10 sliding compression spring II12 of movable slider, after instant impact disappears, the energy release of spring II12 savings pushes sliding block 10
It is mobile, promote piston 7 to return to original position by hydraulic oil；When spool 2 is by moment downward active force, operation principle is identical, only
That but sliding block 10 compresses is spring I11.Due to the mobile volume that can change 5 inner carrier of piston cylinder or more both sides of piston 7, hold
Long-pending change can make hydraulic coupling in volume change, and when piston 7 is disappeared by the power of spool 2, the hydraulic pressure difference of both sides can also pass
The power for passing the movement of piston 7, it is that 7 stress of piston is fast, violent to be superimposed with the restoring force of piston cylinder inner spring, and vibration is violent, and sliding block
The 10 mobile volume that can change both sides above and below in auxiliary bradyseism cylinder 6, to the change with both sides volume above and below 5 inner carrier of piston cylinder
Change mutually compensates, and will not change the both sides above and below piston because of volume and generate pressure difference, the energy that spool instant impact transmits only is put aside
In the spring, also gentler when release, effectively reduce vibration.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection domain by appended claims and its
Equivalent defines.
Claims (5)
1. a kind of piston fluid control valve has valve body (1), spool (2), valve seat (3), valve rod (4), piston cylinder (5), piston
Be equipped with piston (7), one end connection piston (7) of valve rod (4) in cylinder (5), the other end connects spool (2), piston cylinder (5) up and down
Side cylinder side wall is equipped with upper access port (8) and lower access port (9), which is characterized in that it is slow that piston cylinder (5) side is provided with auxiliary
Cylinder (6) is shaken, sliding block (10) is installed inside auxiliary bradyseism cylinder (6), sliding block (10) will assist being divided into space one inside bradyseism cylinder (6)
With space two, be separately installed with spring I (11) and spring II (12) in two spaces, the space one by channel one (13) with
Cylinder body links together on the upside of piston cylinder (5), and the space two is connected to by channel two (14) and cylinder body on the downside of piston cylinder (5)
Together.
2. piston fluid control valve according to claim 1, which is characterized in that the piston cylinder (5) has piston cylinder
Pedestal (18) is equipped with guide sleeve (15) between piston cylinder pedestal (18) and piston cylinder (5).
3. piston fluid control valve according to claim 1, which is characterized in that valve body (1) top is provided with upper flange
(16) and upper cover body (17), using stud (19) by the upper flange (16), upper cover body (17) and piston cylinder pedestal (18)
It is integrally connected together.
4. according to claim 1-3 any one of them piston fluid control valves, which is characterized in that the channel one (13) with
Certain distance is reserved between piston cylinder (5) top, and certain distance is reserved between the channel two (14) and piston cylinder (5) lower part.
Auxiliary bradyseism cylinder (6) top is additionally provided with thread seal pin (22).
5. piston fluid control valve according to claim 4, which is characterized in that on valve seat (3) upper body (1) side wall
It is equipped with and strengthens arc panel I (20), be also equipped on valve seat (3) lower body (1) side wall and strengthen arc panel II (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550805.1A CN108518494B (en) | 2018-06-01 | 2018-06-01 | piston type flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550805.1A CN108518494B (en) | 2018-06-01 | 2018-06-01 | piston type flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108518494A true CN108518494A (en) | 2018-09-11 |
| CN108518494B CN108518494B (en) | 2020-01-31 |
Family
ID=63426949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810550805.1A Active CN108518494B (en) | 2018-06-01 | 2018-06-01 | piston type flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518494B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555434A (en) * | 2020-12-04 | 2021-03-26 | 浙江苏正自控阀门有限公司 | Reinforced noise-proof pneumatic regulating valve |
| CN114088146A (en) * | 2021-11-12 | 2022-02-25 | 西安迈象能源科技有限公司 | Gas flow detection control integrated valve terminal device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000073687A1 (en) * | 1999-05-27 | 2000-12-07 | Fmc Corporation | Improved pneumatic valve actuator |
| CN202326493U (en) * | 2011-11-19 | 2012-07-11 | 襄阳忠良工程机械有限责任公司 | Oil supplementation buffer valve |
| FR2959782B1 (en) * | 2010-05-10 | 2013-03-29 | Snecma | CYLINDER FOR A FLUID CIRCUIT, SUCH FOR EXAMPLE OF A FUEL CIRCUIT IN A TURBOMACHINE |
| CN104653846A (en) * | 2015-02-10 | 2015-05-27 | 无锡智能自控工程股份有限公司 | Spring buffer type pneumatic executing mechanism |
| CN205315388U (en) * | 2016-01-28 | 2016-06-15 | 华南理工大学 | High -speed cylinder's pressure ratio is than formula buffer |
| CN205937299U (en) * | 2016-08-11 | 2017-02-08 | 山东临工工程机械有限公司 | Hydraulic equipment buffer structure |
| CN207018609U (en) * | 2017-06-16 | 2018-02-16 | 浙江中孚流体机械有限公司 | A kind of hydraulic program control valve |
-
2018
- 2018-06-01 CN CN201810550805.1A patent/CN108518494B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000073687A1 (en) * | 1999-05-27 | 2000-12-07 | Fmc Corporation | Improved pneumatic valve actuator |
| FR2959782B1 (en) * | 2010-05-10 | 2013-03-29 | Snecma | CYLINDER FOR A FLUID CIRCUIT, SUCH FOR EXAMPLE OF A FUEL CIRCUIT IN A TURBOMACHINE |
| CN202326493U (en) * | 2011-11-19 | 2012-07-11 | 襄阳忠良工程机械有限责任公司 | Oil supplementation buffer valve |
| CN104653846A (en) * | 2015-02-10 | 2015-05-27 | 无锡智能自控工程股份有限公司 | Spring buffer type pneumatic executing mechanism |
| CN205315388U (en) * | 2016-01-28 | 2016-06-15 | 华南理工大学 | High -speed cylinder's pressure ratio is than formula buffer |
| CN205937299U (en) * | 2016-08-11 | 2017-02-08 | 山东临工工程机械有限公司 | Hydraulic equipment buffer structure |
| CN207018609U (en) * | 2017-06-16 | 2018-02-16 | 浙江中孚流体机械有限公司 | A kind of hydraulic program control valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555434A (en) * | 2020-12-04 | 2021-03-26 | 浙江苏正自控阀门有限公司 | Reinforced noise-proof pneumatic regulating valve |
| CN112555434B (en) * | 2020-12-04 | 2022-09-27 | 浙江苏正自控阀门有限公司 | Reinforced noise-proof pneumatic regulating valve |
| CN114088146A (en) * | 2021-11-12 | 2022-02-25 | 西安迈象能源科技有限公司 | Gas flow detection control integrated valve terminal device |
| CN114088146B (en) * | 2021-11-12 | 2023-07-07 | 西安迈象能源科技有限公司 | Integrated valve island device for gas flow detection control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108518494B (en) | 2020-01-31 |
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Effective date of registration: 20191225 Address after: Room 32, No. 968, Zhongshan North Road, Jing'an District, Shanghai 200040 Applicant after: Shanghai Mingtong Industrial Development (Group) Co., Ltd Address before: 261061 unit 601, building 19, Fenghuang villa, Kuiwei Development Zone, Weifang, Shandong. Applicant before: Liu Fangyuan |
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