CN203549038U - Internal pressure-taking self-operated pressure regulating valve - Google Patents
Internal pressure-taking self-operated pressure regulating valve Download PDFInfo
- Publication number
- CN203549038U CN203549038U CN201320756893.3U CN201320756893U CN203549038U CN 203549038 U CN203549038 U CN 203549038U CN 201320756893 U CN201320756893 U CN 201320756893U CN 203549038 U CN203549038 U CN 203549038U
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- China
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- valve
- valve body
- stuffing box
- elastomer diaphragm
- cavity cover
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- Expired - Fee Related
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Abstract
The utility model relates to an internal pressure-taking self-operated pressure regulating valve, and belongs to the technical field of regulating valves. According to the technical scheme, an upper cavity cover (2) is fixedly connected with a lower cavity cover (9), a rubber diaphragm (7) is arranged between the upper cavity cover (2) and the lower cavity cover (9), the upper side and the lower side of the rubber diaphragm (7) are provided with a rubber diaphragm upper clamping plate (6) and a rubber diaphragm lower clamping plate (10) respectively, a spring (4) is arranged inside the upper cavity cover (2), a pressure regulating bolt (1) penetrates through the upper cavity cover (2) to make contact with a spring pressing plate (3), an integrated valve element valve rod (5) is arranged inside a valve body (11), the upper end of the integrated valve element valve rod (5) penetrates through the rubber diaphragm (7), the lower end of the integrated valve element valve rod (5) is communicated with the exterior of the valve body (11) through a stuffing box (16), and a valve body air inlet (14) and a valve body air outlet (12) are respectively formed in the valve body. The valve rod air outlet (12) and the valve rod air inlet (14) are formed in the upper and lower positions of a valve element, and the valve body (11) is of a cylinder structure. The internal pressure-taking self-operated pressure regulating valve has the advantages of being simple in structure, low in manufacturing cost, free of additional energy, sensitive in reaction and accurate in control.
Description
Technical field
The utility model relate to a kind of in pressure self-contained pressure regulator, in particular for compressed natural gas compressed natural gas(CNG) etc. the pressure regulator of pressurized gas, belong to modulating valve technical field.
Background technique
Self-contained pressure regulator is without external energy, can be in the place work without gas without electricity, and not only convenient but also saved the energy.Pressure segmentation limit is thin and cross one another, and degree of regulation is high.Pressure set points can be set continuously at run duration.Rubber membrane chip detects, and actuator's testing precision is high, be active in one's movements.Adopt pressure balance mechanism, make modulating valve be quick on the draw, control accurately.
At present, produce self-contained pressure regulator producer both at home and abroad numerous, numerous in variety.But, can be used for compressed natural gas compressed natural gas(CNG) etc. the pressure regulator valve home products of pressurized gas still in space state.Wherein, comprise self-contained pressure regulator, also comprise the pressure regulator valve of pneumatic, the electric actuator with pilot valve.Early aly be introduced in domestic Italian TARTARINI RP/10 pressure regulator valve (being commonly called as pressure governor), capture Chinese market for many years.Because valve port adopts the sealing of flat rubber circle, working life is short, and the working life of epithelium is not long yet, and amount of maintenance is large, and price is higher.Therefore the pressure regulator valve with pilot valve (being commonly called as pressure governor) of, being produced by U.S. KIMRAY company gradually in recent years replaces.This product has adopted the encapsulation scheme of hard metal spherical valve core and hard metal valve seat, and performance is more stable, and industry is evaluated fair.Its deficiency is, in the situation that not changing delivery pressure setting value, user uses combustion gas to be transformed into small flow by large flow, and modulating valve panting phenomenon is serious, follows approximate vibrations of driving steamer.In such cases, delivery pressure fluctuation ratio is larger.Also have the situation that spool valve base sealing is not tight, pilot valve form, need provide Gas Energy Source.Complex structure, product price is higher.
In addition, existing modulating valve valve body, due to indoor design complexity, valve body only has the precision casting process of employing just can meet design requirement, and amount of finish is large, and manufacture cost is high.
Model utility content
The utility model object is to provide a kind of interior pressure self-contained pressure regulator, and without external energy, modulating valve is quick on the draw, controls accurately, solves the problem existing in background technique.
The technical solution of the utility model is:
Pressure self-contained pressure regulator in a kind of, comprises regulator bolts, upper chamber cover, spring bearer plate, spring, one valve core valve stem, elastomer diaphragm punch holder, elastomer diaphragm, clamping bolt, cavity of resorption lid, elastomer diaphragm die holder, valve body, valve body air outlet, valve seat, valve body suction port, sealed pipe and seal ring, stuffing box, stuffing box hold-down bolt; Described valve body is cylindrical shell, in valve body axial axis, is penetrating; Valve body suction port axis and valve body air outlet axis are all perpendicular to valve axis and not point-blank; One valve core valve stem and upper chamber cover, cavity of resorption lid, valve body, stuffing box are same axis; One valve core valve stem is from top to bottom successively through elastomer diaphragm punch holder, elastomer diaphragm, cavity of resorption lid, elastomer diaphragm die holder, valve body, valve seat, stuffing box, sealed pipe and seal ring, stuffing box hold-down bolt, one valve core valve stem lower end surface and valve body exterior.
Described valve body is cylindrical shell, in valve body axial axis, is penetrating.Valve body suction port axis and valve body air outlet axis are all perpendicular to valve axis, and one valve core valve stem and upper chamber cover and valve body are same axis.
Described elastomer diaphragm punch holder and elastomer diaphragm die holder clamp elastomer diaphragm and are fixed on one valve core valve stem.
Between described stuffing box and one valve core valve stem, be provided with sealed pipe and seal ring, one spool stem lower portion end face is by stuffing box and valve body exterior.
Between described stuffing box and one valve core valve stem, be provided with sealed pipe and seal ring, one spool stem lower portion end face is by stuffing box and valve body exterior.The one, in the time of can making valve body suction port pressure wide variation (1Mpa-20Mpa), one valve core valve stem lower end surface can not be subject to the impact that valve body suction port pressure changes, and therefore, can not have influence on the variation of valve body air outlet pressure yet.The 2nd, once packing box seal is not tight, can find in time convenient processing, be unlikely to make valve rod therefore stressed.
The beneficial effects of the utility model are: simple in structure, and low cost of manufacture, without external energy, modulating valve is quick on the draw, controls accurately.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model one spool stem structure schematic diagram;
Fig. 3 is the utility model valve body structure schematic diagram;
Fig. 4 is the utility model valve seat construction schematic diagram;
In figure: regulator bolts 1, upper chamber cover 2, spring bearer plate 3, spring 4, one valve core valve stem 5, elastomer diaphragm punch holder 6, elastomer diaphragm 7, clamping bolt 8, cavity of resorption lid 9, elastomer diaphragm die holder 10, valve body 11, valve body air outlet 12, valve seat 13, valve body suction port 14, sealed pipe and seal ring 15, stuffing box 16, stuffing box hold-down bolt 17, one valve core valve stem lower end surface 18.
Embodiment
Below in conjunction with accompanying drawing, by example, the utility model is described in further detail.
With reference to accompanying drawing 1, 2, 3, 4, pressure self-contained pressure regulator in a kind of, comprise regulator bolts 1, upper chamber cover 2, one valve core valve stem 5, valve body 11 and stuffing box 16, valve body 11 is cylindrical shell, material can be selected the seamless steel pipe of suitable material, round steel, square steel etc., one valve core valve stem 5 is same axis with upper chamber cover 2 and valve body 11, valve body 11 upper end portions are fixedly connected with cavity of resorption lid 9, upper chamber cover 2 is fixedly connected with by clamping bolt 8 with cavity of resorption lid 9, between be provided with elastomer diaphragm 7, elastomer diaphragm 7 is respectively equipped with elastomer diaphragm punch holder 6 and elastomer diaphragm die holder 10 up and down, in upper chamber cover 2, be provided with spring 4, spring 4 is provided with spring bearer plate 3, regulator bolts 1 contacts with spring bearer plate 3 through upper chamber cover 2, one valve core valve stem 5 is placed in valve body 11, upper end is through elastomer diaphragm 7, elastomer diaphragm punch holder 6 and elastomer diaphragm die holder 10 clamp elastomer diaphragm 7 and are fixed on one valve core valve stem 5, one valve core valve stem 5 lower ends are by stuffing box 16 and valve body 11 exterior, between stuffing box 16 and one valve core valve stem 5, be provided with sealed pipe and seal ring 15, on valve body 11, be respectively equipped with valve body suction port 14 and valve body air outlet 12, valve body air outlet 12 and valve body suction port 14 are positioned at the upper-lower position of spool, valve body suction port 14 axis and valve body air outlet 12 axis are all perpendicular to valve body 11 axis, valve body 11 and valve seat 13, valve body 11 and stuffing box 16, between stuffing box 16 and stuffing box hold-down bolt 17 all with being threaded.
Working procedure: gas after one valve core valve stem 5, valve seat 13 throttlings, becomes valve body air outlet 12 pressure P 2 in valve body suction port 14 pressure P 1.P2 acts on elastomer diaphragm die holder 10 and elastomer diaphragm 7, and the upwards directed force F 2 of generation balances each other with the reaction force F3 of spring 4, has determined the relative position of one valve core valve stem 5 with valve seat 13.When valve body air outlet pressure P 2 increases, F2 also increases thereupon.Now, F2 is greater than the reaction force F3 of spring 4, makes elastomer diaphragm 7 drive one valve core valve stem 5 to move up, until the reaction force of F2 and spring 4 is when balance each other.Due to one valve core valve stem 5 move up and valve seat 13 between circulation area reduce, it is large that flow resistance becomes, thereby make P2 reduce to setting value.When valve body air outlet pressure P 2 reduces, F2 also reduces thereupon.Now, F2 is less than the reaction force F3 of spring 4, makes elastomer diaphragm 7 drive one valve core valve stem 5 to move down, until the reaction force of F2 and spring 4 is when balance each other.Due to one valve core valve stem 5 move down and valve seat 13 between circulation area increase, flow resistance diminishes, thereby makes P2 rise to setting value.
In the time need to changing the setting value of downstream pressure P2, can realize by screwing regulator bolts 1.
Claims (1)
1. a pressure self-contained pressure regulator in, is characterized in that comprising regulator bolts (1), upper chamber cover (2), spring bearer plate (3), spring (4), one valve core valve stem (5), elastomer diaphragm punch holder (6), elastomer diaphragm (7), clamping bolt (8), cavity of resorption lid (9), elastomer diaphragm die holder (10), valve body (11), valve body air outlet (12), valve seat (13), valve body suction port (14), sealed pipe and seal ring (15), stuffing box (16), stuffing box hold-down bolt (17); Described valve body (11) is cylindrical shell, in valve body (11) axial axis, is penetrating; Valve body suction port (14) axis and valve body air outlet (12) axis are all perpendicular to valve body (11) axis and not point-blank; One valve core valve stem (5) is same axis with upper chamber cover (2), cavity of resorption lid (9), valve body (11), stuffing box (16); One valve core valve stem (5) passes elastomer diaphragm punch holder (6), elastomer diaphragm (7), cavity of resorption lid (9), elastomer diaphragm die holder (10), valve body (11), valve seat (13), stuffing box (16), sealed pipe and seal ring (15), stuffing box hold-down bolt (17), one valve core valve stem lower end surface (18) and valve body (11) exterior from top to bottom successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756893.3U CN203549038U (en) | 2013-11-27 | 2013-11-27 | Internal pressure-taking self-operated pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756893.3U CN203549038U (en) | 2013-11-27 | 2013-11-27 | Internal pressure-taking self-operated pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549038U true CN203549038U (en) | 2014-04-16 |
Family
ID=50467156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320756893.3U Expired - Fee Related CN203549038U (en) | 2013-11-27 | 2013-11-27 | Internal pressure-taking self-operated pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203549038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382159A (en) * | 2018-12-18 | 2019-02-26 | 广西华银铝业有限公司 | A kind of novel gyratory crusher cantilever crane cap |
-
2013
- 2013-11-27 CN CN201320756893.3U patent/CN203549038U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382159A (en) * | 2018-12-18 | 2019-02-26 | 广西华银铝业有限公司 | A kind of novel gyratory crusher cantilever crane cap |
| CN109382159B (en) * | 2018-12-18 | 2024-03-12 | 广西华银铝业有限公司 | Novel cone crusher arm support cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161127 |