CN106838390A - New type pressure regulating valve pilot valve - Google Patents
New type pressure regulating valve pilot valve Download PDFInfo
- Publication number
- CN106838390A CN106838390A CN201510885581.6A CN201510885581A CN106838390A CN 106838390 A CN106838390 A CN 106838390A CN 201510885581 A CN201510885581 A CN 201510885581A CN 106838390 A CN106838390 A CN 106838390A
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- CN
- China
- Prior art keywords
- spring
- regulation
- pressure
- valve
- pilot valve
- 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.)
- Pending
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The present invention relates to a kind of New type pressure regulating valve pilot valve, including：Lower house, case spring, shutter spring, shutter spring seat, closed pore plug, Mobile base, middle housing, epithelium, lower dual spring seat, greatly upper shell, regulation spring, minor adjustment spring, upper dual spring seat, spigot nut, regulating bolt, connecting rod.It is characterized in that：Lower house, middle housing and upper shell are affixed with screw, and two epitheliums are divided into three cavitys；Case spring, shutter spring, shutter spring seat and closed pore plug are installed in lower house；Connecting rod is arranged on middle housing；Dual spring seat, regulation spring, spigot nut and regulating bolt are installed in upper shell.Beneficial effect is：Pressure value is smaller during minor adjustment spring works, downstream pressure is set slowly to increase, when being compressed with big regulation spring simultaneously, due to the existing certain pressure in downstream, pressure meeting continued smooth rises, until reaching operating pressure, can reduce impact of the gas to upstream device, improve regulation precision, it is ensured that operating pressure stabilization.
Description
Technical field
The present invention relates to a kind of New type pressure regulating valve pilot valve, more particularly to a kind of new dual spring pressure regulator valve pilot valve.
Background technology
At present, in the market is possessed pilot valve construction be by shell, connecting rod, closed pore plug, case spring, shutter spring,
Epithelium, Mobile base, upper spring seat, lower spring cup, regulation spring, regulating bolt are constituted.When upstream gas passes through connecting rod
Into pilot valve and act on closed pore beyond the Great Wall, case spring compresses closed pore plug, be allowed to act on connecting rod and seal.Rotate regulation spiral shell
Bolt makes upper spring seat compress regulation spring and applies oppressive force to spring, and the active force for producing spring acts on lower spring cup
Place, lower spring cup stress is acted on Mobile base, and Mobile base stress declines and drives closed pore plug to overcome the active force of shutter spring
Decline, open closed pore plug institute sealing position, gas chamber release in the housing.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, the pressure that gas is produced to overcome the active force of pressure regulation valve spring, make tune
Pressure valve is opened, and upstream gas enters downstream pipe by pressure regulator valve.When the requirement of downstream pipe gas pressure is too high, then
The service load for asking pilot valve to adjust spring becomes big, and spring-compressed distance becomes big, causes closed pore plug to open distance and becomes big, into valve
Gas pressure moment of body becomes big, the aperture increase of pressure regulating valve valve port, make by valve into gas downstream it is excessive, rise and press through
Hurry up, high-voltage high-speed gas can impact upstream device, cause regulation precision to reduce.
The content of the invention
Downstream pipe boosting too fast, regulation precision too low deficiency when in view of this, in order to overcome existing pilot valve high pressure,
The present invention provides a kind of New type pressure regulating valve pilot valve, and the invention can not only make pressure regulator valve control downstream work pressure by pilot valve
Power, and the too fast deficiency of downstream boosting can be improved, improve regulation precision.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
Lower house, middle housing and upper shell are affixed with screw, and epithelium is arranged on middle housing upper and lower surface, will integrally be divided into three chambers
Body；Case spring, shutter spring and shutter spring seat are installed in lower house, closed pore plug is installed in shutter spring seat；Connecting rod is installed
On middle housing；Upper and lower dual spring seat is installed in upper shell, large and small regulation spring is installed in the middle of spring base；Spigot nut with it is upper
Housing is threadedly coupled, and regulating bolt coordinates with spigot nut screw thread.Minor adjustment its length is long, and rigidity is small, and spring is adjusted greatly
Length is short, and rigidity is big.When regulating bolt is rotated, upper dual spring seat is acted on minor adjustment spring first, minor adjustment spring stress
Work, lower dual spring seat stress is simultaneously acted on Mobile base, and Mobile base stress declines and drives closed pore plug to overcome shutter spring
Active force declines, and opens closed pore plug institute sealing position, gas chamber release in the housing.Housing lumen is connected with valve body in pressure regulator valve
Connect, housing lumen enters valve body in pressure regulator valve and produces pressure, the pressure that gas is produced to overcome the active force of pressure regulation valve spring to make tune
Pressure valve is opened, and upstream gas enters downstream pipe by pressure regulator valve.Because the pilot valve is provided with two regulation bullets of size
Spring, minor adjustment spring is compressed first during work, and the big regulation spring of the force ratio produced by identical decrement is small, so downstream
Boosting is slow gentle, it is ensured that upstream device is not impacted by gas.Regulating bolt is persistently rotated, pressure continues to rise to certain limit
When, dual spring seat is acted on big regulation spring, now large and small regulation spring cooperation, and downstream pipe pressure remains unchanged and continues
It is steady to rise.Minor adjustment spring is that the early stage pressure regulation of regulation spring greatly is buffered, the downstream work when big regulation spring works
Pressure has reached to a certain degree, in the absence of the too fast and shock problem that boosts；Big regulation spring is the later stage of size adjustment spring
Pressure regulation is continued a journey, and the spring force that minor adjustment spring is provided when downstream pipe pressure reaches to a certain degree is not enough, large and small tune
Section spring cooperation solves spring force deficiency problem, pressure regulator valve downstream pipe pressure continued smooth is increased, until reaching
Operating pressure.Complete the boosting of improvement downstream too fast, improve the purpose of regulation precision.
The beneficial effects of the invention are as follows minor adjustment spring is that the early stage pressure regulation of regulation spring greatly is buffered, it is ensured that started
Regulation pressure value very little, minor adjustment spring-compressed to compressed simultaneously with big regulation spring when, there has been certain work pressure in downstream
Power, the too fast problem of pressure rise is made in the absence of because big regulation spring stiffness values are excessive；Big regulation spring is minor adjustment spring
Later stage pressure regulation continue a journey, when downstream pipe reaches certain pressure, spring force that minor adjustment spring is provided is not enough, it is big,
Minor adjustment spring cooperation can solve the hypodynamic problem of spring, pressure regulator valve downstream pipe pressure continued smooth is increased, directly
To reaching operating pressure, large and small spring with the use of can improve downstream boosting it is too fast the drawbacks of, reduce gas to upstream device
Impact, improves regulation precision, dual spring cooperating, working stability.
Brief description of the drawings
Type of the present invention is described further with reference to the accompanying drawings and examples.
Fig. 1 is New type pressure regulating valve pilot valve insight structural map.
Fig. 2 is the flat cutting view of accompanying drawing 1.
Fig. 3 is the operating diagram that pilot valve is arranged on pressure regulator valve
101, lower house in Fig. 1,102, case spring, 103., shutter spring, 104, shutter spring seat, 105, closed pore plug, 106,
Mobile base, 107, middle housing, 108, epithelium, 109, lower dual spring seat, 110, upper shell, 111, adjust spring greatly, 112, ditty
Section spring, 113, upper dual spring seat, 114, spigot nut, 115, regulating bolt；
116, connecting rod in Fig. 2；
200, pressure regulator valve in Fig. 3,201, front valve shell, 202, middle valve body.
Specific embodiment
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of New type pressure regulating valve pilot valve.Lower house in described Fig. 1（101）With middle housing（107）Connection；Upper shell
（110）With middle housing（107）Connection；Mobile base（106）It is placed in middle housing（107）Lumen, epithelium（108）Outer cause upper shell,
Middle housing and lower house are fixed, interior cause shutter spring seat（104）, Mobile base（106）Fixed with nut, be divided into for housing by epithelium
The cavity of upper, middle and lower three；Fig. 2 connecting rods（116）Installed in middle housing（107）On, in Mobile base（106）Passed through at the circular hole of middle part, soon
Door spring base（104）With Mobile base（106）Threaded connection, closed pore plug（105）It is placed in Mobile base（106）Shutter spring is simultaneously leaned in bottom
（103）Compress connecting rod（116）Venthole；Case spring（102）It is placed in housing cavity of resorption, it is ensured that Mobile base（106）In housing
The center in chamber and shutter spring aid in closed pore plug to seal jointly；Lower dual spring seat（109）It is pressed on Mobile base（106）Upper end,
Large and small regulation spring（111,112）On lower dual spring seat, upper dual spring seat（113）Push down minor adjustment spring（112）And
With regulating bolt（115）Connection；Spigot nut（114）It is fixed on upper shell（110）Top；Regulating bolt（115）By screw thread
With spigot nut（114）Connection.To ensure sealing when being passed through gas, the original position of regulating bolt should not be to regulation spring
Produce oppressive force.
In system shown in Figure 3, P1 gases are by front valve shell（201）By pilot valve（100）During formation P3 gases enter afterwards
Valve body（202）And valve is opened, gas enters downstream by pressure regulator valve.
Preferred scheme of the present invention is that the minor adjustment spring is first started working, and is that the early stage pressure regulation of regulation spring greatly is done
Buffering, it is ensured that the regulation pressure value very little of beginning, will not produce impact to upstream device；Minor adjustment spring and big regulation spring are same
When working, there has been certain operating pressure in downstream, because big regulation spring stiffness values are excessive pressure rise will not be made too fast
Cause regulation precision instability problem；Solve downstream boosting it is too fast the drawbacks of, improve regulation precision and job stability.
The above little spring is first worked, and is worked after big spring, and achievable gas pressure is gradually slowly raised.
The above, is only presently preferred embodiments of the present invention, not makees any formal to structure of the invention
Limitation.For those of ordinary skill in the field, other multi-forms can also be made on the basis of the above description
Change and variation, all of implementation method cannot be exhaustive here.It is every according to technical spirit of the invention to the above
Any simple modification, equivalent variations and modification that embodiment is made, still fall within the range of technical scheme.
Claims (3)
1. a kind of pressure regulator valve pilot valve, the chamber of upper, middle and lower three, two regulation bullets of epicoele are distinguished in pilot valve housing by epithelium
Spring, two spring bases coordinate with regulating bolt；Cavity of resorption case spring, shutter spring, shutter spring seat coordinate with closed pore plug；Lumen
Mobile base, connecting rod coordinate；Lumen air inlet, cavity of resorption feedback closes air inlet, epicoele dual spring rational and orderly regulation balanced inlet air；It is special
Levying is：Rotate regulating bolt to be allowed to drive dual spring seat to act on first on minor adjustment spring, minor adjustment spring stress is simultaneously opened
Beginning work, is rotated further regulating bolt, large and small regulation spring cooperation.
2. New type pressure regulating valve pilot valve according to claim 1, it is characterized in that：Large and small two tune are installed on pilot valve
Section spring.
3. New type pressure regulating valve pilot valve according to claim 1, it is characterized in that：Minor adjustment spring first works on pilot valve,
Worked after big regulation spring, complete the pressure regulation work of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885581.6A CN106838390A (en) | 2015-12-07 | 2015-12-07 | New type pressure regulating valve pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885581.6A CN106838390A (en) | 2015-12-07 | 2015-12-07 | New type pressure regulating valve pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106838390A true CN106838390A (en) | 2017-06-13 |
Family
ID=59150439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510885581.6A Pending CN106838390A (en) | 2015-12-07 | 2015-12-07 | New type pressure regulating valve pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106838390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049979A (en) * | 2017-11-17 | 2018-05-18 | 广州柴油机厂股份有限公司 | It is a kind of can stepless voltage regulation air pressure diesel engine side manipulate valuator |
| CN109373031A (en) * | 2018-11-26 | 2019-02-22 | 乐山川天燃气输配设备有限公司 | Articulated structure direct acting type pressure regulator |
-
2015
- 2015-12-07 CN CN201510885581.6A patent/CN106838390A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049979A (en) * | 2017-11-17 | 2018-05-18 | 广州柴油机厂股份有限公司 | It is a kind of can stepless voltage regulation air pressure diesel engine side manipulate valuator |
| CN109373031A (en) * | 2018-11-26 | 2019-02-22 | 乐山川天燃气输配设备有限公司 | Articulated structure direct acting type pressure regulator |
| CN109373031B (en) * | 2018-11-26 | 2023-12-22 | 乐山川天燃气输配设备有限公司 | Hinge structure direct acting voltage regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |