CN205504103U - Air -vent valve pilot valve - Google Patents
Air -vent valve pilot valve Download PDFInfo
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- CN205504103U CN205504103U CN201520998060.7U CN201520998060U CN205504103U CN 205504103 U CN205504103 U CN 205504103U CN 201520998060 U CN201520998060 U CN 201520998060U CN 205504103 U CN205504103 U CN 205504103U
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- spring
- seat
- pressure
- shutter
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Abstract
The utility model relates to an air -vent valve pilot valve, include: down casing, case spring, shutter spring, shutter spring holder, obturator stopper, move seat, well casing, involucra, down the dual spring seat, go up casing, big regulating spring, little regulating spring, upward dual spring seat, spigot nut, adjusting bolt, connecting rod. Characterized by: lower casing, well casing and epitheca body and function screw rigid coupling, two involucras divide into three cavity with it, the internal installation case spring of inferior valve, shutter spring, shutter spring holder and obturator stopper, the connecting rod is installed on well casing, the internal installation dual spring seat of epitheca, regulating spring, spigot nut and adjusting bolt. The beneficial effects are that: little regulating spring during operation pressure value is less, makes low reaches pressure slowly rise, and when compressing simultaneously with big regulating spring, because low reaches have had certain pressure, pressure can last steady rising, and until reaching operating pressure, reducible gas improves regulation precision to the impact of low reaches equipment, guarantees that operating pressure is stable.
Description
Technical field
This utility model relates to a kind of pressure regulator valve pilot valve, particularly relates to a kind of dual spring pressure regulator valve pilot valve.
Background technology
At present, market is had pilot valve structure be by shell, connecting rod, closed pore plug, case spring, shutter spring,
Epithelium, Mobile base, upper spring seat, lower spring cup, regulation spring, regulation bolt are formed.When upstream gas passes through connecting rod
Entering pilot valve and act on closed pore beyond the Great Wall, case spring compresses closed pore plug, is allowed to act on connecting rod sealing.Rotate regulation spiral shell
Bolt makes upper spring seat compress regulation spring and spring is applied oppressive force, and the active force making spring produce acts on lower spring cup
Place, lower spring cup stress acts on Mobile base, and Mobile base stress declines and drives closed pore plug to overcome the active force of shutter spring
Declining, open the sealed position of closed pore plug, gas chamber in the housing discharges.Housing lumen is connected with valve body in pressure regulator valve, shell
Body lumen gas enters valve body in pressure regulator valve and produces pressure, and the pressure that gas produces overcomes the active force of pressure regulator valve spring, makes tune
Pressure valve is opened, and upstream gas enters downstream pipe by pressure regulator valve.When downstream pipe gas pressure requires too high, then want
The service load seeking pilot valve regulation spring becomes big, and spring-compressed distance becomes big, causes closed pore plug to open distance and becomes big, enters valve
Gas pressure moment of body becomes big, and the aperture of pressure regulating valve valve port increases, make by valve enter gas downstream too much, rise and press through
Hurry up, high-voltage high-speed gas can impact upstream device, causes regulation precision to reduce.
Summary of the invention
In view of this, during in order to overcome existing pilot valve high pressure, downstream pipe boosting is too fast, the deficiency that regulation precision is too low,
This utility model provides a kind of pressure regulator valve pilot valve, and this utility model can not only make pressure regulator valve pass through pilot valve control downstream work
Pressure, and the deficiency that downstream boosting is too fast can be improved, improve regulation precision.
For reaching above-mentioned purpose, this utility model adopts the following technical scheme that
Lower house, middle shell and upper shell screw are affixed, and epithelium is arranged on middle shell upper and lower surface, and entirety is divided into three
Individual cavity；In case spring, shutter spring and shutter spring seat, shutter spring seat are installed in lower house, closed pore plug is installed；Connecting rod
It is arranged on middle shell；Install in upper shell and large and small regulation spring is installed in the middle of upper and lower dual spring seat, spring base；Spigot nut
With upper shell with threadeding, regulation bolt is connected with spigot nut by screw thread.Minor adjustment its length is long, and rigidity is little, greatly
Regulation its length is short, and rigidity is big.When rotating regulation bolt, first upper dual spring seat acts on minor adjustment spring, minor adjustment
Spring stress works, and lower dual spring seat stress also acts on Mobile base, and Mobile base stress declines and drives closed pore plug to overcome soon
The active force of door spring declines, and opens the sealed position of closed pore plug, and gas chamber in the housing discharges.In housing lumen and pressure regulator valve
Valve body is connected, and housing lumen gas enters valve body in pressure regulator valve and produces pressure, and the pressure that gas produces overcomes pressure regulator valve spring
Active force make pressure regulator valve open, upstream gas enters downstream pipe by pressure regulator valve.Owing to this pilot valve is provided with greatly
Little two regulation springs, during work, first minor adjustment spring is compressed, the big regulation bullet of force ratio produced by identical decrement
Spring is little, so downstream boosting is the mildest, it is ensured that upstream device is not impacted by gas.Persistently rotating regulation bolt, pressure continues
When being increased to certain limit, dual spring seat acts on big regulation spring, the most large and small regulation spring cooperation, downstream tube
Road pressure remain unchanged continued smooth rise.Minor adjustment spring is that the early stage pressure regulation regulating greatly spring buffers, when regulating greatly spring
During work, downstream operating pressure has reached to a certain degree, there is not the too fast and shock problem of boosting；Big regulation spring is ditty
The later stage pressure regulation of joint spring is continued a journey, the spring force that minor adjustment spring is provided when downstream pipe pressure reaches to a certain degree
Deficiency, large and small regulation spring cooperation solves spring force deficiency problem, makes on pressure regulator valve downstream pipe pressure continued smooth
Rise, until it reaches operating pressure.Complete improve downstream boosting too fast, improve regulation precision purpose.
The beneficial effects of the utility model are, minor adjustment spring is that the early stage pressure regulation regulating greatly spring buffers, it is ensured that
The regulation force value started is the least, and minor adjustment spring-compressed is to when compressing with big regulation spring simultaneously, and there has been certain work in downstream
Make pressure, do not exist and make pressure raise too fast problem because big regulation spring stiffness values is excessive；Big regulation spring is minor adjustment
The later stage pressure regulation of spring is continued a journey, and when downstream pipe reaches certain pressure, the spring force that minor adjustment spring is provided is not enough,
Large and small regulation spring cooperation can solve the hypodynamic problem of spring, makes pressure regulator valve downstream pipe pressure continued smooth increase,
Until reaching operating pressure, the drawback that large and small spring is too fast with the use of improving downstream boosting, reduces gas to upstream device
Impact, improve regulation precision, dual spring cooperating, working stability.
Accompanying drawing explanation
With embodiment, this utility model is described further below in conjunction with the accompanying drawings.
Accompanying drawing 1 is pressure regulator valve pilot valve insight structural map.
Accompanying drawing 2 is the flat cutting view of accompanying drawing 1.
The operating diagram that accompanying drawing 3 is arranged on pressure regulator valve for pilot valve
In Fig. 1 101, lower house, 102, case spring, 103, shutter spring, 104, shutter spring seat, 105, closed pore plug,
106, Mobile base, 107, middle shell, 108, epithelium, 109, lower dual spring seat, 110, upper shell, 111, regulate spring greatly, 112,
Minor adjustment spring, 113, upper dual spring seat, 114, spigot nut, 115, regulation bolt
In Fig. 2 116, connecting rod
In Fig. 3 200, pressure regulator valve, 201, front valve shell, 202, middle valve body
Detailed description of the invention
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of pressure regulator valve pilot valve.In described Fig. 1, lower house (101) is connected with middle shell (107)；Upper shell (110) with
Middle shell (107) connects；Mobile base (106) is placed in middle shell (107) lumen, epithelium (108) outer cause upper shell, middle shell and
Lower house is fixed, and interior cause shutter spring (104), Mobile base (106) and nut are fixed, and housing is divided into upper, middle and lower three by epithelium
Cavity；Fig. 2 connecting rod (116) is arranged on middle shell (107), passes, shutter spring seat at the circular hole of Mobile base (106) middle part
(104) threadeding with Mobile base (106), closed pore plug (105) is placed in Mobile base (106) bottom and presses by shutter spring (103)
It is close to bar (116) venthole；Case spring (102) is placed in housing cavity of resorption, it is ensured that Mobile base (106) is positioned at the center of housing lumen
Position and shutter spring assist closed pore plug to seal jointly；Lower dual spring seat (109) is pressed on Mobile base (106) upper end, large and small regulation
Spring (111,112) is arranged on lower dual spring seat, upper dual spring seat (113) push down minor adjustment spring (112) and with regulation spiral shell
Bolt (115) connects；Spigot nut (114) is fixed on upper shell (110) top；Regulation bolt (115) is by screw thread and guiding spiral shell
Female (114) connect.For ensureing to be passed through sealing during gas, the original position of regulation bolt should not produce compressing to regulation spring
Power.
In system shown in Figure 3, P1 gas is formed in the entrance of P3 gas by front valve shell (201) after pilot valve (100)
Valve body (202) also makes valve open, and gas enters downstream by pressure regulator valve.
This utility model preferred version is, described minor adjustment spring is first started working, for the big early stage pressure regulation regulating spring
Buffer, it is ensured that the regulation force value of beginning is the least, upstream device will not be produced impact；Minor adjustment spring and regulate greatly bullet
When spring works simultaneously, there has been certain operating pressure in downstream, pressure will be made to raise because big regulation spring stiffness values is excessive
Too fast cause regulation precision instability problem；Solve the drawback that downstream boosting is too fast, improve regulation precision and working stability
Property.
The above little spring first works, and works after big spring, can realize gas pressure and the most slowly raise.
The above, be only preferred embodiment of the present utility model, not make any to structure of the present utility model
Pro forma restriction.For those of ordinary skill in the field, can also be made other on the basis of the above description
The change of multi-form and variation, cannot give exhaustive to all of embodiment here.Every according to skill of the present utility model
Any simple modification, equivalent variations and the modification that above example is made by art essence, all still falls within technology of the present utility model
In the range of scheme.
Claims (1)
1. a pressure regulator valve pilot valve, including: lower house, case spring, shutter spring, shutter spring seat, closed pore plug, movement
Seat, middle shell, epithelium, lower dual spring seat, upper shell, regulate spring, minor adjustment spring, upper dual spring seat, spigot nut, tune greatly
Joint bolt, connecting rod, lower house, middle shell and upper shell screw are affixed, and epithelium is arranged on middle shell upper and lower end face, by pressure regulator valve
Pilot valve is divided into chamber, upper, middle and lower three, and epicoele is provided with lower dual spring seat, regulates spring, minor adjustment spring and upper dual spring greatly
Seat, upper dual spring seat coordinates with regulation bolt, and cavity of resorption is provided with case spring, shutter spring, shutter spring seat and closed pore plug, in
Mobile base and connecting rod are installed in chamber, it is characterized in that: drive upper dual spring seat compression minor adjustment spring, minor adjustment bullet by regulation bolt
Spring stress is also started working, and is rotated further regulation bolt, and big regulation spring and minor adjustment spring work simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998060.7U CN205504103U (en) | 2015-12-07 | 2015-12-07 | Air -vent valve pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998060.7U CN205504103U (en) | 2015-12-07 | 2015-12-07 | Air -vent valve pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205504103U true CN205504103U (en) | 2016-08-24 |
Family
ID=56721333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520998060.7U Active CN205504103U (en) | 2015-12-07 | 2015-12-07 | Air -vent valve pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205504103U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404580A (en) * | 2018-12-18 | 2019-03-01 | 诺威尔（天津）能源装备股份有限公司 | Axial flow pressure regulator and working method |
| CN109854559A (en) * | 2018-12-07 | 2019-06-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of parallel spring safety valve of low frequency response |
| CN113479498A (en) * | 2021-07-09 | 2021-10-08 | 广东韶钢松山股份有限公司 | Long-life double-stroke air gun device and using method |
-
2015
- 2015-12-07 CN CN201520998060.7U patent/CN205504103U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854559A (en) * | 2018-12-07 | 2019-06-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of parallel spring safety valve of low frequency response |
| CN109404580A (en) * | 2018-12-18 | 2019-03-01 | 诺威尔（天津）能源装备股份有限公司 | Axial flow pressure regulator and working method |
| CN113479498A (en) * | 2021-07-09 | 2021-10-08 | 广东韶钢松山股份有限公司 | Long-life double-stroke air gun device and using method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |