CN202545917U - Ultrahigh pressure adjuster - Google Patents
Ultrahigh pressure adjuster Download PDFInfo
- Publication number
- CN202545917U CN202545917U CN2012201519854U CN201220151985U CN202545917U CN 202545917 U CN202545917 U CN 202545917U CN 2012201519854 U CN2012201519854 U CN 2012201519854U CN 201220151985 U CN201220151985 U CN 201220151985U CN 202545917 U CN202545917 U CN 202545917U
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- Prior art keywords
- pressure
- valve
- valve body
- valve rod
- seal ring
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- Expired - Fee Related
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Abstract
The utility model discloses an ultrahigh pressure adjuster, which comprises a valve body, an upper film cover arranged on the upper end of the valve body, and a bottom cover arranged on the lower end of the valve body, wherein a needle valve I and a needle valve II are arranged on the upper film cover; a connector of the upper film cover, which is communicated with the needle valve II, is provided with a pressure relief plug; the middle part of the upper film cover is provided with a pressure gage used for measuring the pressure of the inner cavity of the upper film cover; a coating is arranged between the valve body and the upper film cover; an upper tray is arranged above the coating, and a lower tray is arranged under the coating; a piston is arranged in the lower tray; the upper surface of the piston is fit to the coating; a valve rod, a valve port and a valve clack ring are arranged in the valve body; an air duct for communicating an outlet pressure cavity and an inner cavity of the bottom cover is arranged in the valve rod; the lower part of the valve rod is arranged in a valve rod guide sleeve; and the valve clack ring is arranged in a special cavity groove between the valve rod and the valve rod guide sleeve. The ultrahigh pressure adjuster disclosed by the utility model can work under the ultrahigh pressure and large differential pressure working condition of which the nominal pressure is more than 10 Mpa, and the ultrahigh pressure adjuster has the characteristics of wide pressure adjusting range, strong resistance to corrosion, long service life and simple structure.
Description
Technical field
The utility model belongs to combustion gas voltage adjusting device technical field, is specifically related to a kind of ultrahigh pressure pressure governor of automatic Regulation.
Background technique
In gas transmission and distribution system, gas pressure regulator, governor carries out steady step-down with high-pressure air source and realizes externally stablizing air feed as important core apparatus in system.At present, existing pressure governor particularly direct acting type adopts the spring action principle to carry out pressure regulation mostly, but range of regulation is narrower, and pressure reduction is less.In general, it can only carry out pressure regulation less than the conventional high-pressure air source of 10MPa to nominal pressure, and can not be under the situation of ultrahigh pressure, big pressure reduction proper functioning.And occasion such as most of CNG voltage regulating station, gas station all need be carried out the peak regulation step-down greater than the ultrahigh pressure source of the gas of 10MPa to nominal pressure; Existing pressure governor complex structure, cost an arm and a leg; Simultaneously because of the ultrahigh pressure erosion, the cavitation that produce of super large pressure reduction particularly; Add other chemical corrosion, make component such as pressure governor valve port fragile, the life-span is on the low side.
The model utility content
The utility model purpose is the deficiency to above-mentioned existing technology, and a kind of simple in structure, range of regulation is wide, corrosion resistance is strong, the life-span is long ultrahigh pressure pressure governor is provided, and can work under greater than the ultrahigh pressure of 10Mpa, big pressure reduction operating mode in nominal pressure.
For achieving the above object, the technological scheme that the utility model is taked is: a kind of ultrahigh pressure pressure governor is provided, it is characterized in that: comprise valve body, be arranged at the last membrane cover of valve body upper end and be arranged at the bottom of valve body lower end; The said membrane cover of going up is provided with needle value I and needle value II; The interface that communicates with needle value II on the said upward membrane cover is provided with and unloads tamponade; The said membrane cover middle part of going up is provided with the pressure gauge that is used to measure the membrane cover chamber pressure; Between said valve body and last membrane cover, epithelium is set; Said epithelium top is provided with top tray, and the below is provided with down pallet; In the pallet piston is set under said; Said piston upper surface and epithelium fit; Valve rod, valve port and flap circle are set in the said valve body; Be provided with air vent in the said valve rod; Said stem lower portion is loaded in the valve rod guide pin bushing; Said flap circle is arranged in the special-purpose chamber groove between valve rod and the valve rod guide pin bushing; Said valve rod guide pin bushing is loaded in the bottom mounting hole; Spring is closed in the setting of said bottom inner chamber, closes spring and is positioned at the valve rod below.
Said valve body and last membrane cover are connected as one by screw a; Said valve body and bottom are connected as one by screw b.
Said needle value I and needle value II valve head are equipped with the liner seal ring; Said needle value I and needle value II middle part are equipped with two seal ring a; Said needle value I and needle value II top are equipped with seal ring b; Said seal ring b top is provided with the guard ring pressing plate that is used to press-fit; The said fitting surface that unloads tamponade and last membrane cover is provided with sealing gasket.
Said pallet down below is provided with guide pin bushing; Said valve rod top is connected with piston through the pilot hole of guide pin bushing.
The fitting surface of said epithelium and valve body is provided with seal ring c; The fitting surface of said guide pin bushing and valve body is provided with seal ring d.
Said valve rod and valve rod guide pin bushing are connected into one through nut.
Said closing between spring and the nut is provided with spring seat.
Said bottom top is provided with the vent that communicates with the valve body inlet channel.
Said valve port is loaded in the seam of bottom upper end; The fitting surface of said valve port and valve body is provided with seal ring e; The fitting surface of said valve body and bottom is provided with seal ring f.
The fitting surface of said valve rod guide pin bushing and bottom is provided with seal ring g and Sealing shield ring seals.
The ultrahigh pressure voltage regulation utensil that the utility model provides has following beneficial effect:
1, two pressure chambers of this ultrahigh pressure pressure governor formation; Outlet pressure chamber between control pressure chamber between last membrane cover and epithelium and valve body, bottom and epithelium; Two chambeies form an equilibrium structure; Adopt internal balance power to control the fluctuation of outlet pressure, thereby can enlarge range of regulation, realization can be worked under greater than the ultrahigh pressure of 10Mpa, big pressure reduction operating mode in nominal pressure;
2, this ultrahigh pressure pressure governor has been realized erosion, the cavitation of multistage dispersion throttling to alleviate and to avoid super large pressure reduction to produce;
3, this ultrahigh pressure pressure governor adopts all steel structure, and Sealing is highly corrosion resistant materials such as compounded rubber; To employing high hardness wear-resisting materials such as valve ports, further improve wear-resisting, the corrosion resistance of pressure governor simultaneously, prolonged the working life of pressure governor;
4, this ultrahigh pressure pressure governor also has advantage simple in structure, that cost is low.
Description of drawings
Fig. 1 is the sectional drawing of ultrahigh pressure pressure governor;
Fig. 2 is the right elevation of ultrahigh pressure pressure governor.
Wherein, 1, valve body; 2, go up membrane cover; 3, liner seal ring; 4, seal ring a; 5, seal ring b; 6, needle value I; 7, guard ring pressing plate; 8, needle value II; 9, sealing gasket; 10, unload tamponade; 11, top tray; 12, epithelium; 13, seal ring c; 14, piston; 15, following pallet; 16, seal ring d; 17, guide pin bushing; 18, valve rod; 19, seal ring e; 20, valve port; 21, valve rod guide pin bushing; 22, seal ring f; 23, bottom; 24, close spring; 25, spring seat; 26, nut; 27, Sealing shield ring; 28, seal ring g; 29, flap circle; 30, pressure gauge; 31, GAUGE CONNECTOR; 32, screw a; 33, screw b.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is carried out detailed description.
Like Fig. 1 and shown in Figure 2, this ultrahigh pressure pressure governor comprises valve body 1, be arranged at the last membrane cover 2 of valve body 1 upper end and be arranged at the bottom 23 of valve body 1 lower end; Valve body 1 is connected as one by screw a32 with last membrane cover 2; Valve body 1 is connected as one by screw b33 with bottom 23; Last membrane cover 2 is provided with needle value I6 and needle value II8; The interface that communicates with needle value II8 on the last membrane cover 2 is provided with and unloads tamponade 10; Last membrane cover 2 middle parts are provided with the pressure gauge 30 that is used to measure membrane cover 2 chamber pressures; Pressure gauge 30 is connected in through GAUGE CONNECTOR 31 to be gone up on membrane cover 2 the corresponding interface; Between valve body 1 and last membrane cover 2, epithelium 12 is set; Epithelium 12 tops are provided with top tray 11, and the below is provided with down pallet 15; In the following pallet 15 piston 14 is set; Piston 14 upper surfaces and epithelium 12 fit; Following pallet 15 belows are provided with guide pin bushing 17; Valve rod 18 tops are connected with piston 14 through the pilot hole of guide pin bushing 17; Valve rod 18, valve port 20 and flap circle 29 are set in the valve body 1; Be provided with the air vent that is communicated with outlet pressure chamber and bottom 23 inner chambers in the valve rod 18; Valve rod 18 bottoms are loaded in the valve rod guide pin bushing 21; Valve rod 18 is connected into one with valve rod guide pin bushing 21 through nut 26; Flap circle 29 is arranged in the special-purpose chamber groove between valve rod 18 and the valve rod guide pin bushing 21; Valve port 20 is loaded in the seam of bottom 23 upper ends; Valve rod guide pin bushing 21 is loaded in bottom 23 mounting holes; Spring 24 is closed in bottom 23 inner chamber settings, closes spring 24 and is positioned at valve rod 18 belows; Close between spring 24 and the nut 26 and be provided with spring seat 25; Bottom 23 tops are provided with the vent that communicates with valve body 1 inlet channel.
Needle value I6 and needle value II8 valve head are equipped with liner seal ring 3; Needle value I6 and needle value II8 middle part are equipped with two seal ring a4; Needle value I6 and needle value II8 top are equipped with seal ring b5; Seal ring b5 top is provided with the guard ring pressing plate 7 that is used to press-fit; The fitting surface that unloads tamponade 10 and last membrane cover 2 is provided with sealing gasket 9.Epithelium 12 is provided with seal ring c13 with the fitting surface of valve body 1; Guide pin bushing 17 is provided with seal ring d16 with the fitting surface of valve body 1.Valve port 20 is provided with seal ring e19 with the fitting surface of valve body 1; Valve body 1 is provided with seal ring f22 with the fitting surface of bottom 23.The fitting surface of valve rod guide pin bushing 21 and bottom 23 is provided with seal ring g28 and Sealing shield ring 27 seals.
This ultrahigh pressure pressure governor adopts all steel structure, and seal ring a4, seal ring b5, sealing gasket 9, seal ring c13, seal ring d16, seal ring e19, seal ring f22, seal ring g28 and Sealing shield ring 27 all adopt highly corrosion resistant materials such as compounded rubber; Simultaneously, valve port 20 grades are adopted high-abrasive material built-up welding structure, improved wear-resisting, the corrosion resistance of pressure governor, prolonged the working life of pressure governor.
Two pressure chambers that this ultrahigh pressure pressure governor forms; The outlet pressure chamber that control pressure chamber that last membrane cover 2 and epithelium are 12 and valve body 1, bottom 23 and epithelium are 12; Two cavity pressures act on the two sides with epithelium 12 respectively; Form an equilibrium of forces relation with closing spring force, regulate the outlet pressure of pressure governor.Its basic functional principle is: through open off and on, the method for quick closedown needle value I6 (suction valve) or needle value II8 (pressure-relief valve) then; Increase or reduce the pressure of going up in membrane cover (2) chamber gradually; Adjust pilot pressure, reach required setting value up to pressure gauge 30 readings.During proper functioning, under outlet pressure keeps stable situation, allow through the gas quantity of valve port 20 equally with amount of consumed gas, the power that acts on epithelium 12 two sides is balance.When increasing in the outlet end gas consumption, can cause outlet pressure to descend, act on epithelium 12 following active forces and reduce; Equilibrium of forces is broken; Epithelium 12 moves down under the pilot pressure effect, and then promotes piston 14 and drive valve rods 18 and move down, and valve port 20 is further opened and allowed more combustion gas to pass through; Outlet pressure is risen again, and make the power that acts on the epithelium 12 progressively reach new balance.Otherwise,, can cause outlet pressure to rise if the outlet amount of consumed gas reduces; Act on epithelium 12 following active forces and increase, epithelium 12 moves up under outlet pressure promotes, and closes spring 24 promotion valve rods 18 and moves up; Valve port 20 openings reduce; The gas quantity that permission is passed through reduces, and outlet pressure is descended, and make the power on the epithelium 12 progressively reach new balance.If pilot pressure is less than outlet pressure, then valve port 20 is closed closing under spring 24 effects fully, stops air feed downstream.
Can find out from above-mentioned working principle; The pilot pressure that this ultrahigh pressure pressure governor is above pressure chamber comes the regulating and controlling outlet pressure; And pilot pressure can be set through needle type valve I6 with needle type valve II8 as required; So just enlarged range of regulation than structures such as this patterns of spring, simplified structure reduces volume simultaneously.
This ultrahigh pressure pressure governor adopts full equilibrium structure, and inner each pressure part pressure is realized balance, avoids bearing the unbalanced pressure of superelevation, and pressure governor can be worked under ultrahigh pressure, big differential pressure conditions.
It is to be noted that the above only is the preferred implementation of the utility model; For those skilled in the art; On the basis that does not break away from principle; Be easy to the utility model is carried out some improvement and modification, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. ultrahigh pressure pressure governor is characterized in that: comprise valve body (1), be arranged at the last membrane cover (2) of valve body (1) upper end and be arranged at the bottom (23) of valve body (1) lower end; The said membrane cover (2) of going up is provided with needle value I (6) and needle value II (8); The interface that said upward membrane cover (2) upward communicates with needle value II (8) is provided with and unloads tamponade (10); Said membrane cover (2) middle part of going up is provided with the pressure gauge (30) that is used to measure membrane cover (2) chamber pressure; Between said valve body (1) and last membrane cover (2), epithelium (12) is set; Said epithelium (12) top is provided with top tray (11), and the below is provided with down pallet (15); In the pallet (15) piston (14) is set under said; Said piston (14) upper surface and epithelium (12) fit; Valve rod (18), valve port (20) and flap circle (29) are set in the said valve body (1); Said valve rod is provided with air vent in (18); Said valve rod (18) bottom is loaded in the valve rod guide pin bushing (21); Said flap circle (29) is arranged in the special-purpose chamber groove between valve rod (18) and the valve rod guide pin bushing (21); Said valve rod guide pin bushing (21) is loaded in bottom (23) mounting hole; Spring (24) is closed in said bottom (23) inner chamber setting, closes spring (24) and is positioned at valve rod (18) below.
2. ultrahigh pressure pressure governor according to claim 1 is characterized in that: said valve body (1) is connected as one by screw a (32) with last membrane cover (2); Said valve body (1) is connected as one by screw b (33) with bottom (23).
3. ultrahigh pressure pressure governor according to claim 1 is characterized in that: said needle value I (6) and needle value II (8) valve head are equipped with liner seal ring (3); Said needle value I (6) and needle value II (8) middle part are equipped with two seal ring a (4); Said needle value I (6) and needle value II (8) top are equipped with seal ring b (5); Said seal ring b (5) top is provided with the guard ring pressing plate (7) that is used to press-fit; The said fitting surface that unloads tamponade (10) and last membrane cover (2) is provided with sealing gasket (9).
4. ultrahigh pressure pressure governor according to claim 1 is characterized in that: said pallet (15) down below is provided with guide pin bushing (17); Said valve rod (18) top is connected with piston (14) through the pilot hole of guide pin bushing (17).
5. ultrahigh pressure pressure governor according to claim 4 is characterized in that: said epithelium (12) is provided with seal ring c (13) with the fitting surface of valve body (1); Said guide pin bushing (17) is provided with seal ring d (16) with the fitting surface of valve body (1).
6. according to claim 1 or 4 described ultrahigh pressure pressure governors, it is characterized in that: said valve rod (18) is connected into one with valve rod guide pin bushing (21) through nut (26).
7. ultrahigh pressure pressure governor according to claim 6 is characterized in that: said closing between spring (24) and the nut (26) is provided with spring seat (25).
8. ultrahigh pressure pressure governor according to claim 1 is characterized in that: said bottom (23) top is provided with the vent that communicates with valve body (1) inlet channel.
9. ultrahigh pressure pressure governor according to claim 1 is characterized in that: said valve port (20) is loaded in the seam of bottom (23) upper end; Said valve port (20) is provided with seal ring e (19) with the fitting surface of valve body (1); Said valve body (1) is provided with seal ring f (22) with the fitting surface of bottom (23).
10. ultrahigh pressure pressure governor according to claim 1 is characterized in that: the fitting surface of said valve rod guide pin bushing (21) and bottom (23) is provided with seal ring g (28) and Sealing shield ring (27) seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201519854U CN202545917U (en) | 2012-04-12 | 2012-04-12 | Ultrahigh pressure adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201519854U CN202545917U (en) | 2012-04-12 | 2012-04-12 | Ultrahigh pressure adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545917U true CN202545917U (en) | 2012-11-21 |
Family
ID=47166555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201519854U Expired - Fee Related CN202545917U (en) | 2012-04-12 | 2012-04-12 | Ultrahigh pressure adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672075A (en) * | 2013-12-25 | 2014-03-26 | 特瑞斯信力（北京）流体科技有限公司 | Novel ultrahigh voltage regulator |
-
2012
- 2012-04-12 CN CN2012201519854U patent/CN202545917U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672075A (en) * | 2013-12-25 | 2014-03-26 | 特瑞斯信力（北京）流体科技有限公司 | Novel ultrahigh voltage regulator |
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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 |
Granted publication date: 20121121 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |