CN2410508Y - Differential pressure regulator - Google Patents
Differential pressure regulator Download PDFInfo
- Publication number
- CN2410508Y CN2410508Y CN 00210810 CN00210810U CN2410508Y CN 2410508 Y CN2410508 Y CN 2410508Y CN 00210810 CN00210810 CN 00210810 CN 00210810 U CN00210810 U CN 00210810U CN 2410508 Y CN2410508 Y CN 2410508Y
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- CN
- China
- Prior art keywords
- air chamber
- differential pressure
- pressure regulator
- valve body
- pressure
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Abstract
The utility model discloses the technology of a differential pressure regulator, which is provided with an upper valve body 2, an intermedium ring 6 and a lower valve body 12 connected with a bolt 4, a transmission block 5 positioned in the intermedium ring 6 is connected with a double-layer film 7 in order to separate the upper valve body 2 and the lower valve body 12 into an air controlling chamber 3 and an air outputting chamber 10, the air controlling chamber 3 is provided with an inlet air port 1, the side face of an output air chamber 3 is provided with an inlet air port 11, and the middle part of the output air chamber 3 is provided with a reset spring 9 which is connected with a valve core body 8 and matched with a lower outlet air port 13. The utility model is applied to industrial gas and industrial gas making equipment which carries out difference pressure control of two gases in the industries of mechanism, metallurgy, chemistry, medicine, etc.
Description
The utility model belongs to pressure regulator, the differential pressure regulator of two kinds of gas pressure difference of particularly a kind of control.
At present, domestic control gaseous pressure unit mostly is diaphragm-type pressure regulating valve, its structure is for being separated into output air chamber and control air chamber with the individual layer diaphragm with valve body, the control air chamber need add source of the gas, when output air chamber internal pressure is higher than the pressure of controlling air chamber, diaphragm moves to the control air chamber, opens valve port, output gas; When the pressure of control air chamber was higher than the pressure of exporting air chamber, diaphragm moved to the output air chamber, and gas is not exported on the cut-off valve doorway, realized fixing output pressure reduction.But because device need add source of the gas, bleed pressure can only be established fixed value, can not satisfy the differential pressure control requirement of two kinds of transformation strength bodies reference each other, is difficult to realize that pressure reduction controls from motion tracking.
The purpose of this utility model is to overcome the deficiency of above technology, provides a kind of from motion tracking control, safe and reliable differential pressure regulator.
Task of the present utility model is, upper valve body that differential pressure regulator has, central ring, following valve body, connect by bolt, transmission piece in central ring connects double-deck diaphragm separation upper valve body and following valve body is the control air chamber and exports air chamber, control air chamber central part is provided with control gas suction port, Returnning spring is installed on the air outlet of following valve body is linked to each other with valve core, have suction port in output air chamber side, the transmission piece that central ring matches is cylindrical body or variable cross section cylindrical structure.
The utlity model has following characteristics, the transmission piece of setting connects upward control air chamber and following output air chamber in the central ring of differential pressure regulator, realizes the switching of air outlet by the valve core displacement of exporting air chamber, controls air inlet and exhaust; Its two, the vent of central ring communicates with atmosphere and the duplicature chip architecture, avoids when gas leakage takes place differential pressure regulator, mixes with gas in another air chamber, realizes adjusting pressure reduction, safety control.
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 shows the differential pressure regulator section of structure.
Fig. 2 shows another example structure sectional drawing of differential pressure regulator.
Fig. 3 shows differential pressure regulator central ring structural drawing.
Fig. 4 shows central ring A-A structure sectional view.
Fig. 5 shows differential pressure regulator user mode figure.
Fig. 6 shows differential pressure regulator associating user mode figure.
Among the figure, 1-controls air inlet of air chamber; The 2-upper valve body; 3-controls air chamber; 4-bolt, nut assembly; 5-transmits piece; The 6-central ring; The 7-diaphragm; The 8-valve core; The 9-Returnning spring; 10-exports air chamber; 11-exports air inlet of air chamber; Valve body under the 12-; 13-output air chamber air outlet; 14-O type circle; The 15-vent; The 16-spring seat; The 17-pressure adjusting spring
With reference to accompanying drawing 1,3,4, differential pressure regulator has upper valve body 2, central ring 6, valve body 12 is connected by bolt 4 down, the double-deck diaphragm 7 separation upper valve bodies 2 of transmission piece 5 connections, the following valve body 12 that are located in the central ring 6 are control air chamber 3 and export air chamber 10, control air chamber 3 is provided with suction port 1, output air chamber 3 sides are provided with suction port 11, the middle part is installed Returnning spring 9 and linked to each other with valve core 8, and valve core 8 matches with the air outlet 13 of bottom.Have vent 15 on the ring wall of central ring 6, the transmission piece 5 that matches with central ring 6 is cylindrical structure.
With reference to accompanying drawing 2, another embodiment for differential pressure regulator, have upper valve body 2, central ring 6, following valve body 12, connect by bolt 4, double-deck diaphragm 7 upper diaphragm mounting spring seats 16, pressure adjusting spring 17 in control air chamber 3, the transmission piece 5 that central ring 6 matches is the variable cross section cylindrical structure, and other structure is the same.
With reference to accompanying drawing 5, when differential pressure regulator used, the suction port 1 of control air chamber 3 linked to each other with high-pressure air pipe, and the suction port 11 of output air chamber 10 links to each other with the low pressure tracheae.The pressure reduction of setting differential pressure regulator is 0.1MPa.When its control air chamber 3 internal pressures are given as 1MPa, the pressure of then exporting in the air chamber 10 should remain on 0.9MPa, when exporting air chamber 10 internal pressures greater than 0.9MPa, pressure reduction is less than 0.1Mpa, and its internal pressure promotes valve core 8, transmits on the piece 5 and move, and opens air outlet 13, outwards export low-pressure gas, the output air chamber pressure begins to descend, and it is big that pressure reduction becomes, and levels off to 0.1MPa; When output air chamber 10 internal pressures during less than 0.9MPa, pressure reduction is greater than 0.1Mpa, and control air chamber 3 internal pressures promote to transmit piece 5, valve core 8 moves down, and closes air outlet 13, does not export low-pressure gas, and pressure reduction diminishes, and levels off to 0.1MPa
When another embodiment of differential pressure regulator used, the suction port 1 of control air chamber 3 linked to each other with the low pressure tracheae, and the suction port 11 of output air chamber 10 links to each other with high-pressure air pipe.When controlling the pressure 1MPa in the air chamber 3, output air chamber 10 pressure 1.1MPa, when exporting air chamber 10 internal pressures greater than 1.1MPa, pressure reduction is greater than 0.1Mpa, and internal pressure promotes valve core 8, transmits on the piece 5 and move, compression pressure adjusting spring 17, open air outlet 13, the output pressurized gas, output air chamber 10 internal pressures begin to reduce, pressure reduction diminishes, and levels off to 0.1MPa; When output air chamber 10 pressure during less than 1.1MPa, pressure reduction is less than 0.1Mpa, the making a concerted effort of control air chamber 3 internal pressures and pressure adjusting spring 17 promotes to transmit piece 5, valve core 8 moves down, and closes air outlet 13, does not export pressurized gas, and it is big that pressure reduction becomes, and levels off to 0.1MPa.
When differential pressure regulator uses, in the 0-1.2MPa scope, two kinds of gas differential pressure 0.1MPa, error ± 0.02MPa.
With reference to accompanying drawing 6, differential pressure regulator is united when using, differential pressure regulator shown in Figure 1, the suction port 1 of control air chamber 3 links to each other with high-pressure air pipe, the suction port 11 of output air chamber 10 links to each other with the low pressure tracheae, differential pressure regulator shown in Figure 2, the suction port 1 of control air chamber 3 links to each other with the low pressure tracheae, and output air chamber 10 suction ports 11 link to each other with high-pressure air pipe.Set the pressure reduction 0.1MPa of differential pressure regulator.When the pressure of high-pressure air pipe during to 1.0MPa, when the pressure in the output air chamber 10 that differential pressure regulator links to each other with the low pressure tracheae is greater than or less than 0.9MPa, make on the valve core 8 and move or move down by transmitting piece 5, open or close air outlet 13, the endotracheal gas output of control low pressure makes low pressure gas intraductal atmospheric pressure 0.9MPa; When the variation in pressure of low pressure tracheae during to 0.9MPa, when the pressure in the output air chamber 10 that differential pressure regulator links to each other with high-pressure air pipe is greater than or less than 1.0MPa, make on the valve core 8 and move or move down by transmitting piece 5, open or close air outlet 13, gas output in the control high-pressure air pipe makes high-pressure air pipe internal air pressure 1.0MPa.
When the differential pressure regulator parallel connection was used, control gas was taken from the other side's output source of the gas respectively, makes two kinds of gas atmosphere 0-1.2Mpa, regulates the output of two kinds of gases automatically, and no matter which kind of pressure state two kinds of gases are in, pressure reduction 0.1MPa, error ± 0.02MPa.
The duplicature slice structure that differential pressure regulator has when output air chamber 10 or the 3 generation gas leakage of control air chamber, in the vent 15 discharging atmosphere by central ring 6, can not mix with the gas in another air chamber, has improved Safety performance.
The utility model is applicable to that industries such as machinery, metallurgy, chemical industry, medicine need carry out the pressure reduction control apparatus to two kinds of gases, is particularly useful for controlling industrial gas, the industry system compression ring border of easily blasting after two kinds of gases mix.
Claims (4)
1, a kind of differential pressure regulator has upper valve body 2, central ring 6, valve body 12 is connected by bolt 4 down, the double-deck diaphragm 7 separation upper valve bodies 2 of transmission piece 5 connections, the following valve body 12 that it is characterized in that being located in the central ring 6 are control air chamber 3 and export air chamber 10, control air chamber 3 is provided with suction port 1, output air chamber 3 sides are provided with suction port 11, the middle part is installed Returnning spring 9 and linked to each other with valve core 8, and valve core 8 matches with the air outlet 13 of bottom.
2, differential pressure regulator according to claim 1 is characterized in that double-deck diaphragm 7 upper diaphragm mounting spring seats 16, pressure adjusting spring 17 in control air chamber 3.
3, differential pressure regulator according to claim 1 is characterized in that having vent 15 on the ring wall of central ring 6.
4, differential pressure regulator according to claim 1 is characterized in that the transmission piece 5 that central ring 6 matches is cylindrical body or variable cross section cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210810 CN2410508Y (en) | 2000-02-02 | 2000-02-02 | Differential pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210810 CN2410508Y (en) | 2000-02-02 | 2000-02-02 | Differential pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2410508Y true CN2410508Y (en) | 2000-12-13 |
Family
ID=33577627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00210810 Expired - Fee Related CN2410508Y (en) | 2000-02-02 | 2000-02-02 | Differential pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2410508Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100520136C (en) * | 2007-06-26 | 2009-07-29 | 河海大学 | Batch pressure-differential controlling valve |
| CN102607776A (en) * | 2012-03-12 | 2012-07-25 | 陈东明 | Water-proof shell convenient for seal test and seal test method thereof |
| CN102678984A (en) * | 2011-03-05 | 2012-09-19 | 江苏中煤机电科技有限公司 | Differential pressure type automatic relief valve |
| CN110701318A (en) * | 2019-09-27 | 2020-01-17 | 捷锐企业(上海)有限公司 | Pressure reducing valve with double diaphragms and pressure chambers |
| CN111828700A (en) * | 2020-07-21 | 2020-10-27 | 深圳市瑞麟科技有限公司 | Mechanical constant pressure difference control valve of deuterium gas generator |
-
2000
- 2000-02-02 CN CN 00210810 patent/CN2410508Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100520136C (en) * | 2007-06-26 | 2009-07-29 | 河海大学 | Batch pressure-differential controlling valve |
| CN102678984A (en) * | 2011-03-05 | 2012-09-19 | 江苏中煤机电科技有限公司 | Differential pressure type automatic relief valve |
| CN102607776A (en) * | 2012-03-12 | 2012-07-25 | 陈东明 | Water-proof shell convenient for seal test and seal test method thereof |
| CN102607776B (en) * | 2012-03-12 | 2014-09-10 | 陈东明 | Water-proof shell convenient for seal test and seal test method thereof |
| CN110701318A (en) * | 2019-09-27 | 2020-01-17 | 捷锐企业(上海)有限公司 | Pressure reducing valve with double diaphragms and pressure chambers |
| CN111828700A (en) * | 2020-07-21 | 2020-10-27 | 深圳市瑞麟科技有限公司 | Mechanical constant pressure difference control valve of deuterium gas generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |