CN206175751U - Take self -operated regulator of pilot valve - Google Patents
Take self -operated regulator of pilot valve Download PDFInfo
- Publication number
- CN206175751U CN206175751U CN201621039153.8U CN201621039153U CN206175751U CN 206175751 U CN206175751 U CN 206175751U CN 201621039153 U CN201621039153 U CN 201621039153U CN 206175751 U CN206175751 U CN 206175751U
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- Prior art keywords
- valve
- chamber
- commander
- hole
- pilot valve
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Abstract
The utility model provides a take self -operated regulator of pilot valve, including main regulator valve, pilot valve valve and actuating mechanism, the pilot valve valve includes the pilot valve body, commander chamber, balanced case and pressure spring, the upper end of valve gap pass the pilot valve body and the inside of the pilot valve body between form the second through -hole of passageway behind the commander chamber, the first through -hole that is equipped with intercommunication commander chamber and valve prepass on the lateral wall of the pilot valve body and intercommunication commander chamber and valve, balanced case lie in commander's intracavity and its upper end and are equipped with the adaptation and pass the ejector pin that commander chamber and lower membrane covered, be equipped with the pressure spring chamber of placing the pressure spring between balanced case and the guide part, balanced case can be followed its axial direction rebound and close the second through -hole under the effect of pressure spring, be equipped with one end intercommunication commander chamber on the valve gap, the other end can order about the pressure passage that case and valve seat seal are connected. The utility model provides a simple structure, convenient to use, the leakproofness is good, accurate take self -operated regulator of pilot valve.
Description
Technical field
The utility model is related to a kind of regulating valve, more particularly to a kind of direct-operated regulator with pilot valve.
Background technology
Direct-operated regulator be it is a kind of be not required to additional drive energy and lean on by the tune medium pressure change of itself be power, from
It is dynamic by setting value requirements realization to pressure, flow, temperature the valve for automatically adjusting.This valve is collection detection, feedback, performs
Various functions energy-conserving product.Minute-pressure direct-operated regulator in direct-operated regulator, is generally used for storage tank nitrogen envelope, coal
The Auto-control of Micro-pressure of the various industrial gasses such as gas, natural gas, liquefied gas, oxygen, nitrogen.Existing direct-operated regulator structure is answered
Miscellaneous, amount of parts is more, and assembly difficulty is big.Traditional direct-operated regulator needs manually or mechanically to control, its control pressure ripple
The ability of dynamic amplitude is little, and downstream pressure is non-constant, due to putting into manpower or machinery, in the control aspect of regulating valve section can not be accomplished
The about energy.Existing direct-operated regulator is suffered from the drawback that：Structure is more complicated, and amount of parts is more, and assembly difficulty is larger；Control
Valve element processed is oriented to by prerotation vane when moving up and down in the movement of valve seat gathering sill, and its lower end is supported by helical spring, easily
Produce revolving force so that control valve element may produce deflection and jam occurs, reduce regulation sensitivity.Control valve seat is by spring
It is pressed in application valve body, valve seat is higher with pressure ring requirement on machining accuracy, if valve seat, pressure ring fit clearance are larger, valve seat is easy
The concentricity for offseting and affecting valve element and valve seat is produced, control valve is likely to result in and is not closed completely, leakage rate is big and impact control is smart
Degree.
How a kind of simple structure to be designed, easy to use, good airproof performance, accurate minute-pressure direct-operated regulator is this area
Technical staff needs the problem for solving.
Utility model content
Based on the problems referred to above, the utility model purpose is to provide a kind of simple structure, easy to use, good airproof performance, essence
The true direct-operated regulator with pilot valve.
For problem above, there is provided following technical scheme：A kind of direct-operated regulator with pilot valve, including main regulation
Valve, pilot valve valve and executing agency, the lower end of the pilot valve valve is connected with main inlet control valve, and upper end is connected with executing agency
Connect, the main inlet control valve is provided with passage, valve body, valve seat, valve element and valve gap after valve prepass, valve, the executing agency includes
By seal against each other the upper membrane cover of connection and lower film cap-shaped into membrane cavity and membrane cavity in control diaphragm, adjust spring and push rod, its
It is characterised by：The pilot valve valve includes commander's body, commander chamber, balance valve core and stage clip, and the upper end of the valve gap is through finger
Wave body and the commander chamber is formed and the inside of commander's body between, upper end and the lower film cover seal of commander's body connect
Connect, be communicated with commanding chamber lead to after commander chamber and valve with to connect with the first through hole of valve prepass on the side wall of commander's body
Second through hole in road, the balance valve core is located in commander chamber and its upper end is provided with the top for fitting through commander chamber and lower membrane cover
Bar, the lower end of the balance valve core is provided with cavity, and the upper end of the valve gap is provided with the embedded cavity of adaptation and makes balance valve core upper and lower
The guide part of sliding, is provided with the stage clip chamber for placing stage clip between the balance valve core and guide part, the balance valve core can be in pressure
The second through hole is moved up along its axial direction and closed in the presence of spring, and the valve gap is provided with one end connection commander chamber, separately
One end can order about the pressure channel that valve element is connected with valve base sealing；Passage is connected by lower membrane cover with membrane cavity after the valve；Institute
The upside for stating control diaphragm is connected with spring is adjusted, and downside is connected with one end of push rod, the other end and push rod of the push rod
Mutually abut；The upper end of the pilot valve is threadedly coupled with lower membrane cover, and the pilot valve is provided with third through-hole, the threeway
The one end in hole is passed through in membrane cavity through lower membrane cover, and the other end is connected with passage after valve；Between the valve gap and commander's body, put down
Sealing ring is provided between weighing apparatus valve element and valve gap.
The utility model is further arranged to：The inwall in the commander chamber it is stepped in a ring and be divided into internal diameter it is different
One chamber and the second chamber, second through hole is located on the side wall in the second chamber, the cavity wall in second chamber and the outer wall of balance valve core
It is adapted in sealing contact to realize closing the second through hole during balance valve core upward sliding.
The beneficial effects of the utility model：The minute-pressure direct-operated regulator that the utility model is provided with the addition of pilot valve valve,
Can voluntarily according to the size of pressure-regulating valve door after and before the valve, pilot valve is provided with commander chamber, communicating valve prepass and commander
The first through hole in chamber, passage and the second through hole for commanding chamber after connection valve, passage is connected with membrane cavity after valve, and balance valve core is referring to
Wave and can move up and down in chamber and can close the second through hole, be communicated with commanding the pressure channel of chamber and pressure chamber on the valve gap.
So, when downstream pressure increases, move up can the control diaphragm in membrane cavity, balance valve core top active force reduce after
The second through hole is moved up and closed under stage clip active force, and now, upstream pressure makes pressure chamber from commander chamber along pressure channel
Interior pressure increase, so as to drive the valve element to be connected cut-out medium channel with valve base sealing downwards；When downstream pressure reduces, institute
State control diaphragm to move down in the presence of spring is adjusted, the balance valve core moves down therewith reset, now, the valve
In the presence of front pressure applies upwards valve element, make to be connected with the medium channel after valve before valve.Valve element and balance in said process
The equal balanced type movement sealing of valve element can reach zero leakage, meanwhile, being designed using pilot valve, the pressure sensitive of regulating valve is cleverer
It is quick, while can reach the effect that art is good for strength.
Description of the drawings
Fig. 1 is the cross-sectional view of minute-pressure direct-operated regulator in the utility model embodiment；
Fig. 2 is the mplifying structure schematic diagram in the utility model Fig. 1 at A；
Fig. 3 is the cross-sectional view of pilot valve in the utility model embodiment；
Fig. 4 is the cut-away section structural representation of pilot valve in the utility model embodiment；
Fig. 5 is the structural representation of balance valve core in the utility model embodiment；
Illustrate in figure：1- valve prepass；Passage after 2- valves；3- valve seats；4- valve elements；5- valve gaps；51- pressure channels；52- leads
To portion；53- stage clips chamber；6- pilot valve valves；61- commands body；611- first through hole；The through holes of 612- second；613- third through-holes；
62- commands chamber；The chambers of 621- first；The chambers of 622- second；7- balance valve cores；71- push rods；72- cavitys；8- stage clips；9- executing agencies；
91- membrane cavities；The upper membrane covers of 911-；Membrane cover under 912-；92- controls diaphragm；93- adjusts spring；94- push rods；
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
As shown in Figures 1 and 2, a kind of direct-operated regulator with pilot valve, including main inlet control valve, pilot valve valve 6 and hold
Row mechanism 9, the lower end of the pilot valve valve 6 is connected with main inlet control valve, and upper end is connected with executing agency 9, the main regulation
Valve is provided with passage 2 after valve prepass 1, valve, valve seat 3, valve element 4 and valve gap 5, and the executing agency 9 is included by the company of sealing against each other
Control diaphragm 92, regulation spring 93 and push rod in the upper membrane cover 911 for connecing and the membrane cavity 91 and membrane cavity 91 of the formation of lower membrane cover 912
94, the pilot valve valve 6 includes commander's body 61, commander chamber 62, balance valve core 7 and stage clip 8, and the upper end of the valve gap 5 passes through
Commander's body 61 simultaneously forms the commander chamber 62, the upper end for commanding body 61 and lower film and the inside of commander's body 61 between
Lid 912 is tightly connected, and is communicated with commanding the first through hole 611 of chamber 62 and valve prepass 1 on the side wall of commander's body 61
With the second through hole 612 for connecting passage 2 after commander chamber 62 and valve, the balance valve core 7 is located in commander chamber 62 and its upper end sets
There is the push rod 71 for fitting through commander chamber 62 and lower membrane cover 912, the lower end of the balance valve core 7 is provided with cavity 72, the valve gap 5
Upper end be provided with the embedded cavity 72 of adaptation the guide part 52 for making balance valve core sliding about 7, the balance valve core 7 and guide part
Be provided between 52 place stage clip 8 stage clip chamber 53, the balance valve core 7 can in the presence of stage clip 8 along its axial direction upwards
The second through hole 612 is moved and closes, the valve gap 5 is provided with one end connection commander chamber 62, and the other end can order about valve element 4 and valve seat
3 pressure channels 51 being tightly connected；Passage 2 is connected by lower membrane cover 912 with membrane cavity 91 after the valve；The control diaphragm 92
Upside with adjust spring 93 be connected, downside is connected with one end of push rod 94, the other end and the phase of push rod 71 of the push rod 94
Mutually abut.
The minute-pressure direct-operated regulator that the utility model is provided with the addition of pilot valve valve 6, can voluntarily according to after and before the valve
The size of pressure-regulating valve door, commander's body 61 is provided with commander chamber 62, communicating valve prepass 1 and the first through hole for commanding chamber 62
611, passage 2 and the second through hole 612 for commanding chamber 62 after connection valve, passage 2 is connected with membrane cavity 91 after valve, and balance valve core 7 exists
Commander can move up and down and can close the second through hole 612 in chamber 62, and the valve gap 5 is provided with pressure channel 51.So, after valve
When pressure increases, move up can the control diaphragm 92 in membrane cavity, the top active force of balance valve core 7 is made after reducing in stage clip 8
Firmly move up down and close the second through hole 612, now, upstream pressure makes pressure chamber from commander chamber 62 along pressure channel 51
Interior pressure increase, so as to drive the valve element 4 to be tightly connected cut-out medium channel with valve seat 3 downwards；When downstream pressure reduces,
The control diaphragm 92 is moved down in the presence of spring 93 is adjusted, and the balance valve core 7 moves down therewith reset, this
When, in the presence of the upstream pressure applies upwards valve element 4, make to be connected with the medium channel after valve before valve.In said process
Valve element 4 and the movement sealing of the equal balanced type of balance valve core 7 can reach zero leakage, meanwhile, designed using pilot valve, the pressure of regulating valve
Sensing is sensitiveer, while can reach the effect that art is good for strength.
The inwall in the commander chamber 62 is stepped in a ring and is divided into the first different chamber 621 of internal diameter and the second chamber 622, institute
State the second through hole 612 to be located on the side wall in the second chamber 622, the cavity wall in second chamber 622 is adapted to close with the outer wall of balance valve core 7
Sealing-in touches to realize closing the second through hole 612 during 7 upward sliding of balance valve core.The upper end of commander's body 6 and lower membrane cover
912 threaded connections, commander's body 61 is provided with third through-hole 613, and one end of the third through-hole 613 passes through lower membrane cover
912 are passed through in membrane cavity 91, and the other end is connected with passage after valve 2.Further, in order to strengthen sealing, the valve gap 5 and pilot valve
Sealing ring is provided between body 61, between balance valve core 7 and valve gap 5.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from the utility model know-why, some improvement and modification, above-mentioned vacation can also be made
If these improve and modification also should be regarded as protection domain of the present utility model.
Claims (2)
1. a kind of direct-operated regulator with pilot valve, including main inlet control valve, pilot valve valve and executing agency, the pilot valve valve
Lower end be connected with main inlet control valve, upper end is connected with executing agency, the main inlet control valve be provided with after valve prepass, valve lead to
Road, valve body, valve seat, valve element and valve gap, the executing agency include by seal against each other the upper membrane cover of connection and lower film cap-shaped into
Control diaphragm, regulation spring and push rod in membrane cavity and membrane cavity, it is characterised in that：The pilot valve valve includes commander's body, refers to
Wave chamber, balance valve core and stage clip, the upper end of the valve gap forms described through commander's body and and the inside of commander's body
Commander chamber, the upper end of commander's body is connected with lower film cover seal, is communicated with commanding chamber on the side wall of commander's body
With the first through hole of valve prepass and the second through hole of passage after commander chamber and valve is connected, the balance valve core is located in commander chamber
And its upper end is provided with the push rod for fitting through commander chamber and lower membrane cover, the lower end of the balance valve core is provided with cavity, the valve gap
Upper end be provided with the embedded cavity of adaptation the guide part for making the upper and lower sliding of balance valve core, set between the balance valve core and guide part
There is a stage clip chamber for placing stage clip, the balance valve core can be moved up along its axial direction in the presence of stage clip and close second
Through hole, the valve gap is provided with one end connection commander chamber, and the other end can order about the pressure channel that valve element is connected with valve base sealing；Institute
State passage after valve to be connected with membrane cavity by lower membrane cover；The upside of the control diaphragm is connected with regulation spring, downside and push rod
One end be connected, the other end of the push rod is mutually abutted with push rod；The upper end of the pilot valve is threadedly coupled with lower membrane cover,
The pilot valve is provided with third through-hole, and one end of the third through-hole is passed through in membrane cavity through lower membrane cover, after the other end and valve
Passage is connected；Sealing ring is provided between the valve gap and commander's body, between balance valve core and valve gap.
2. a kind of direct-operated regulator with pilot valve according to claim 1, it is characterised in that：The commander chamber it is interior
Wall is stepped in a ring and is divided into the first different chamber of internal diameter and the second chamber, and second through hole is located on the side wall in the second chamber,
The cavity wall in the second chamber is adapted in sealing contact to realize closing second during balance valve core upward sliding with the outer wall of balance valve core
Through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039153.8U CN206175751U (en) | 2016-08-29 | 2016-08-29 | Take self -operated regulator of pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039153.8U CN206175751U (en) | 2016-08-29 | 2016-08-29 | Take self -operated regulator of pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175751U true CN206175751U (en) | 2017-05-17 |
Family
ID=58676611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621039153.8U Expired - Fee Related CN206175751U (en) | 2016-08-29 | 2016-08-29 | Take self -operated regulator of pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757427A (en) * | 2021-07-28 | 2021-12-07 | 浙江永盛科技股份有限公司 | Zero-friction director pressure regulating valve and pressure regulating method |
-
2016
- 2016-08-29 CN CN201621039153.8U patent/CN206175751U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757427A (en) * | 2021-07-28 | 2021-12-07 | 浙江永盛科技股份有限公司 | Zero-friction director pressure regulating valve and pressure regulating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The East Village Industrial Road in Yongjia County Oubei town Wenzhou city Zhejiang province 325000 No. 4 Patentee after: Zhejiang union automatic control valve Co., Ltd. Address before: The East Village Industrial Road in Yongjia County Oubei town Wenzhou city Zhejiang province 325000 No. 4 Patentee before: Yongjia auto control valve Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20190829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |