CN2233493Y - Micropressure automatic pressure regulating valve - Google Patents
Micropressure automatic pressure regulating valve Download PDFInfo
- Publication number
- CN2233493Y CN2233493Y CN 94221824 CN94221824U CN2233493Y CN 2233493 Y CN2233493 Y CN 2233493Y CN 94221824 CN94221824 CN 94221824 CN 94221824 U CN94221824 U CN 94221824U CN 2233493 Y CN2233493 Y CN 2233493Y
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- CN
- China
- Prior art keywords
- valve
- air chamber
- spool
- chamber
- pressure
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a micropressure self-operated pressure control valve used for the air seal of storage tanks for various petroleum products and chemical liquids in industrial departments such as petroleum, chemical industry, metallurgy, light industry, etc. The utility model is composed of an actuating device and a regulating mechanism. Through the feedback signals of the variation in pressure in storage tanks, and air media are automatically controlled to be supplied into the pressure regulating valve to keep the pressure in the storage tanks within the range of a set value. The utility model has the advantages of convenient installation and debugging, high precision, small place occupation, etc.
Description
The utility model belongs to that the sealing gland of various petroleum products, chemical liquid basin in the industrial departments such as oil, chemical industry, metallurgy, light industry uses, by jar in the variation in pressure of self gas, realize jar internal pressure minute-pressure self-contained pressure regulator of control automatically.
In order to prevent the leak of liquid, volatilization in petroleum product or other chemical liquid basin or to contact with air and go bad, for preventing to cause the damage of basin because of jump in temperature.Generally be that inert gas (normally using nitrogen) is charged into basin, make it to be coated on adopting on the face of liquid.And should regulate the nitrogen amount of basin at any time according to the variation of jar internal pressure, keep jar internal pressure and remain in the given scope.Existing method is, adopts a kind of nitrogen envelope regulator, and this regulator mainly is made up of nitrogen envelope valve, sentinel valve, reduction valve, needle-valve and pipeline etc.Nitrogen enters basin by nitrogen envelope valve.When the jar internal pressure was lower than setting value, sentinel valve was opened, and signal feed back is arrived the actuator that nitrogen seals valve, opened nitrogen envelope valve, made jar interior pressure recovery to setting value.When the jar internal pressure reached setting value, valve was corresponding closes for sentinel valve and nitrogen envelope.If a jar internal pressure is higher than setting value, then by the inhalation valve pressure release on the jar.Because this device is made up of a plurality of valves, so the Installation and Debugging more complicated, the position that takes up space is also bigger.
The utility model is that the collection nitrogen envelope valve, sentinel valve, needle-valve and the reduction valve four that design at the deficiencies in the prior art are valve integrated, has Installation and Debugging air seal set minute-pressure self-contained pressure regulator easily.
The utility model realizes that by following measure the minute-pressure self-contained pressure regulator mainly is made up of controlling mechanism and actuator's two-part, and controlling mechanism comprises compositions such as valve body, valve gap, spool, valve seat, guide sleeve and diaphragm; Actuator comprises compositions such as pressure adjusting spring, diaphragm, film chamber, driving component, valve seat, spool and connecting body.The valve seat II of controlling mechanism is positioned at the middle part of valve body, and the spool II that is mated the break-make medium is on valve seat II, and the surface of contact between spool II and the valve seat II has seal with elastometic washer.Spool II isolates valve ante-chamber and air chamber 3 by diaphragm II between spool II and the valve body by spring and guide sleeve location; In the air chamber 3 of the first half of spool II between valve gap and valve body, Lower Half is positioned at the top of valve ante-chamber; Spool II is at the active area on the diaphragm II top active area greater than the bottom.
2 two air chambers of air chamber 1 and air chamber are arranged on the connecting body of actuator, and driving component is in air chamber 1, and the upper end links to each other with diaphragm I, and the lower end contacts with spool I, and valve seat I is between air chamber 1 and air chamber 2, and spool I locatees by spring in air chamber 2.Diaphragm I reaches the function that makes air chamber 1 and air chamber 2 break-makes by driving component control spool I action.Be feedback film chamber and pressure adjusting spring above the connecting body, feedback film chamber communicates with tank body by the feedback pipe, and air chamber 1 communicates with the valve back cavity by pipeline; Air chamber 2 communicates with the valve ante-chamber by pipeline, on this pipeline throttle element is arranged, and throttle element is arranged on the connecting body.Actuator be installed in controlling mechanism above, air chamber 2 communicates with air chamber 3.
Working principle of the present utility model is, sets force value when following when gas pressure in the jar drops to and since feedback film chamber with jar in directly communicate, the pressure of feedback film chamber is also along with decline, under the effect of pressure adjusting spring, diaphragm I drive driving component has stroke downwards; The spool I of actuator is separated with valve seat I, and promptly the air chamber in the connecting body 1 is open-minded with air chamber 2.Owing to air chamber 2 is to utilize upstream pressure to make source of the gas to insert, communicate in air chamber 1 and the valve back cavity jar, air chamber 2 communicates with air chamber 3, so the pressure in the air chamber 3 reduces because of the shunting of air chamber 1; Have one to upward pressure poorly at valve ante-chamber main valve ingress and air chamber 3, promote spool II and move up, the aperture of valve is increased, downstream pressure just increases; When the pressure in behind the valve jar increases to the force value that sets, the pressure of feedback film chamber along with effect of increasing to diaphragm I, make diaphragm I and driving component that stroke upwards be arranged, air chamber 1 and air chamber 2 are cut off the pressure increase of air chamber 3.Because spool II is at the active area on the diaphragm II top active area greater than the bottom, valve cuts out, and jar internal pressure is remained on the force value of setting.
For adapting to the needs of small flow, the opening of connecting body bottom air chamber 2 is shut, air chamber 1 links to each other with tank body, air chamber 2 links to each other with source of the gas, can use the actuator on top to do the modulating valve use separately, promptly utilize the action control spool I of feedback film chamber diaphragm I, directly the pressure in the jar is carried out self-powering type and regulate.
The utility model has the advantages that to have possessed the comprehensive function of former nitrogen envelope valve, sentinel valve, reduction valve and needle-valve, Installation and Debugging are convenient, and the position that takes up space is little, is active in one's movements the precision height.
Accompanying drawing is a structural representation of the present utility model, and (1) among the figure is a pressure adjusting spring; (2) be diaphragm I; (3) be last membrane cover; (4) be following membrane cover; (5) be driving component; (6) be valve seat I; (7) be spool I; (8) be connecting body; (9) be valve gap; (10) be diaphragm II; (11) be guide sleeve; (12) be spool II; (13) be valve seat II; (14) be valve body; (15) be the valve back cavity; (16) be the valve ante-chamber; (17) be connecting tube; (18) be air chamber 3; (19) be air chamber 2; (20) be air chamber 1; (21) be the feedback pipe; (22) be feedback film chamber; (23) be throttle element; (24) be spring; (25) be connecting tube.
Below in conjunction with a description of drawings embodiment of the present utility model.
The valve seat II (13) of controlling mechanism and spool II (12) are at the middle part of valve body (14) among the figure, and spool II is by spring and guide sleeve (11) location; Diaphragm II (10) is housed between spool II (12) and the valve body, is air chamber 3 (18) above the diaphragm II and between the valve gap (9).Air chamber 1 (20) and air chamber 2 (19) are arranged on the connecting body of actuator (8), driving component (5) in air chamber 1, last termination diaphragm I (2), the lower end contacts with spool I (7).Valve seat I (6) is between air chamber 1 and air chamber 2, and spool I (7) locatees by spring (24) in air chamber 2.The action of spool I drives driving component (5) by diaphragm I (2) and realizes.Feedback pipe (21) connects basin and feedback film chamber (22); Air chamber 1 (20) communicates with valve back cavity (15) by connecting tube (25); Air chamber 2 (19) communicates with valve ante-chamber (16) by connecting tube (17), and throttle element (23) is arranged on the connecting tube (17).Set force value when following when gas pressure in the jar drops to, by the effect of feedback pipe (21), the pressure of feedback film chamber (22) is along with decline, and pressure adjusting spring (1) drives driving component (5) and moves down, and promptly spool I (7) moves down, and air chamber 1 is open-minded with air chamber 2.Because the pressure of air chamber 2 is identical with upstream pressure, the interior pressure of jar is identical behind the pressure of air chamber 1 and the valve, and air chamber 2,3 communicates, so the pressure of air chamber 3 (18) reduces because of the shunting of air chamber 1 (20).To be valve ante-chamber (16) have the difference that upwards pressure to promote spool II (12) with air chamber 3 (18) in the main valve ingress moves up, and makes itself and the aperture increase of valve seat II (13).Valve back cavity (15) and jar interior pressure increase, when increasing to setup pressure value, pressure in jar is managed (21) to feedback film chamber (22) by feedback, diaphragm I, driving component and spool I are moved upward, air chamber 1 and air chamber 2 are cut off, make the pressure of air chamber 3 increase to identical with the pressure of valve ante-chamber (16).Because spool II is at the active area on the diaphragm II top active area greater than the bottom, spool II and valve seat II close, and jar internal pressure is remained on the force value of setting.
Claims (2)
1. a minute-pressure self-contained pressure regulator is made up of controlling mechanism and actuator's two-part, and controlling mechanism comprises valve body, valve gap, valve seat, spool and diaphragm etc.; Actuator comprises pressure adjusting spring, film chamber, diaphragm, driving component, valve seat, spool and connecting body etc., it is characterized in that: the valve seat II (13) of controlling mechanism is positioned at the middle part of valve body, the spool II (12) that is mated the break-make medium is on valve seat II, and the surface of contact between spool II and the valve seat II has seal with elastometic washer; Spool II (12) isolates valve ante-chamber (16) and air chamber 3 (18) by diaphragm II (10) between spool II and the valve body (14) by spring and guide sleeve (11) location; The first half of spool II (12) is arranged in the air chamber 3 between valve gap (9) and the valve body (14), and Lower Half is positioned at the top of valve ante-chamber (16), and spool II (12) is at the active area on diaphragm II (10) the top active area greater than the bottom; 2 (19) two air chambers of air chamber 1 (20) and air chamber are arranged on the connecting body of actuator (8), driving component (5) is in air chamber 1, and the upper end links to each other with diaphragm I (2), and the lower end contacts with spool I (7), valve seat I (6) is between air chamber 1 and air chamber 2, and spool I locatees by spring (24) in air chamber 2; Diaphragm I (2) is by driving component (5) control spool I action; Be feedback film chamber (22) and pressure adjusting spring (1) above the connecting body (8), feedback film chamber communicates with tank body by feedback pipe (21), and air chamber 1 communicates with valve back cavity (15) by pipeline (25); Air chamber 2 communicates with valve ante-chamber (16) by pipeline (17); Actuator be installed in controlling mechanism above, air chamber 2 communicates with air chamber 3.
2. minute-pressure self-contained pressure regulator according to claim 1 is characterized in that: on the pipeline (17) between said air chamber 2 (19) and the valve ante-chamber (16) throttle element (23) is housed, this throttle element is arranged on the connecting body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221824 CN2233493Y (en) | 1994-09-29 | 1994-09-29 | Micropressure automatic pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221824 CN2233493Y (en) | 1994-09-29 | 1994-09-29 | Micropressure automatic pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2233493Y true CN2233493Y (en) | 1996-08-21 |
Family
ID=33836015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94221824 Expired - Lifetime CN2233493Y (en) | 1994-09-29 | 1994-09-29 | Micropressure automatic pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2233493Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100353271C (en) * | 2003-03-13 | 2007-12-05 | F.W.奥文特罗普两合公司 | Flow regulating valve with hidden presetting mechanism |
| CN104989942A (en) * | 2000-04-19 | 2015-10-21 | 安格斯公司 | Gas storage and dispensing system comprising regulator interiorly disposed in fluid containment vessel and adjustable in situ therein |
| CN106224611A (en) * | 2016-08-29 | 2016-12-14 | 永嘉汇正自控泵阀有限公司 | A kind of minute-pressure direct-operated regulator |
| CN109723971A (en) * | 2019-03-01 | 2019-05-07 | 青岛国胜焊割设备有限公司 | A kind of automatic voltage regulator and cutting equipment |
| CN110260007A (en) * | 2019-07-26 | 2019-09-20 | 浙江三方控制阀股份有限公司 | A kind of pressure-regulating device with cutting function |
-
1994
- 1994-09-29 CN CN 94221824 patent/CN2233493Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989942A (en) * | 2000-04-19 | 2015-10-21 | 安格斯公司 | Gas storage and dispensing system comprising regulator interiorly disposed in fluid containment vessel and adjustable in situ therein |
| CN104989942B (en) * | 2000-04-19 | 2018-03-06 | 恩特格里斯公司 | Comprising being built in fluid containment vessel and can be in the gas storage of the adjuster of its interior Field adjustment and distribution system |
| CN100353271C (en) * | 2003-03-13 | 2007-12-05 | F.W.奥文特罗普两合公司 | Flow regulating valve with hidden presetting mechanism |
| CN106224611A (en) * | 2016-08-29 | 2016-12-14 | 永嘉汇正自控泵阀有限公司 | A kind of minute-pressure direct-operated regulator |
| CN109723971A (en) * | 2019-03-01 | 2019-05-07 | 青岛国胜焊割设备有限公司 | A kind of automatic voltage regulator and cutting equipment |
| CN110260007A (en) * | 2019-07-26 | 2019-09-20 | 浙江三方控制阀股份有限公司 | A kind of pressure-regulating device with cutting function |
| CN110260007B (en) * | 2019-07-26 | 2024-06-07 | 浙江三方控制阀股份有限公司 | Pressure regulating device with cutting-off function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |