CN202946736U - Self-reliance type micro-pressure regulating valve - Google Patents
Self-reliance type micro-pressure regulating valve Download PDFInfo
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- CN202946736U CN202946736U CN 201220651695 CN201220651695U CN202946736U CN 202946736 U CN202946736 U CN 202946736U CN 201220651695 CN201220651695 CN 201220651695 CN 201220651695 U CN201220651695 U CN 201220651695U CN 202946736 U CN202946736 U CN 202946736U
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- regulating valve
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Abstract
The utility model relates to a self-reliance type micro-pressure regulating valve. An existing self-reliance type micro-pressure regulating valve is complex in structure, multiple in part number, and difficult in assembly, influences, caused by pressure surge, on precision of set points can not be completely eliminated in the pressure compensation process by the existing regulating valve, and regulating stability is poor. The self-reliance type micro-pressure regulating valve comprises a valve body, a valve cover, a valve core and a valve body actuating mechanism, and is characterized in that a balance membrane is arranged on the valve core, a detection membrane is arranged in the valve body actuating mechanism, and a set spring is further arranged in the valve cover. According to the self-reliance type micro-pressure regulating valve, energy sources do not need to be arranged additionally, automatic regulation is achieved utilizing pressure change of regulated medium, downstream pressure is enabled to be constant, and the regulating valve has the advantages that motions are sensitive, pressure surge is controlled to be small, and energy is saved.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of operated micropressure adjusting valve.
Background technique
For making the storage tank gas sealing system pressure stabilitys such as petroleum product, chemical product in setting range, normally realize to the tank inner pressure control that automatically adjusts, with the protective system safe operation by installing self-contained pressure regulator additional.Existing operated micropressure adjusting valve complex structure, amount of parts is many, and assembling difficulty is large.This class modulating valve can not be eliminated pressure surge fully on the impact of set point precision when pressure compensation, modification stability is relatively poor.
The model utility content
The utility model provides a kind of operated micropressure adjusting valve for above-mentioned defective, and is rational in infrastructure, can effectively eliminate pressure surge to the impact of degree of regulation, makes setting pressure more stable.
For this reason, the utility model is taked following technological scheme, a kind of operated micropressure adjusting valve, comprise valve body, valve gap, spool and valve body actuator, it is characterized in that described spool is provided with the balance diaphragm, be provided with the detection diaphragm in described actuator, also be provided with setting spring in valve gap.
Described actuator is connected pressure pipe by PRESSURE PIPE with pressure tapping connector, and described pressure pipe connects entrance point and the outlet end of valve body.
Be provided with successively stop valve, pressure gauge and filter on pressure pipe that the valve body entrance point is connected.
The utility model need not external energy, utilizes and to be transferred the pressure of medium own to change and to realize automatically regulating, and makes downstream pressure constant, and complete machine has and is active in one's movements, and the pilot pressure fluctuation is little, the advantage of energy saving.The ultra-thin diaphragm of actuator's adapted of valve body adds responsive spring design, and complete machine has high sensitivity, and setting pressure can reach 30mmH
20, adopt the pressure compensation design of diaphragm type, eliminate pressure surge fully to the impact of degree of regulation, make set point pressure more stable.The whole employing without the filler design, resistance is little, and structure is compact and reasonable more.Pressure setting is convenient, during operation continuously interference-free set, non-maintaining use.The utility model also is furnished with special-purpose taking pressure pipe and joint, installs simpler and more direct and reliable.
Description of drawings
Fig. 1 is the structural representation of model utility.
Fig. 2 is mounting structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.
A kind of operated micropressure adjusting valve as depicted in figs. 1 and 2 comprises valve body 1, valve gap 4, spool 2 and valve body actuator 7, and spool 2 is provided with balance diaphragm 3, is provided with in actuator 7 to detect diaphragm 5, also is provided with setting spring 6 in valve gap 4.Actuator 7 is connected with pressure tapping connector by PRESSURE PIPE 11 and connects pressure pipe 13, and pressure pipe 13 connects entrance point and the outlet end of valve bodies 1.Be provided with successively stop valve 8, pressure gauge 9 and filter 10 on pressure pipe 13 that the valve body entrance point is connected.
Operated micropressure adjusting valve of the present utility model can be used as lets out the top that the nitrogen valve is directly installed on the nitrogen tank, need not to install additional the pilot parts, easy to use, reliable.The utility model working principle is to be delivered to actuator by set point pressure by PRESSURE PIPE, make actuator's action and set up transient equiliblium with spring, when change has occured in set point pressure, balance is destroyed, spring produces the power that spool is moved, thereby makes set point pressure come back to setting value.
The utility model need not external energy, utilizes and to be transferred the pressure of medium own to change and to realize automatically regulating, and makes downstream pressure constant, and complete machine has and is active in one's movements, and the pilot pressure fluctuation is little, the advantage of energy saving.The ultra-thin diaphragm of actuator's adapted of valve body adds responsive spring design, and complete machine has high sensitivity, and setting pressure can reach 30mmH
20, adopt the pressure compensation design of diaphragm type, eliminate pressure surge fully to the impact of degree of regulation, make set point pressure more stable.The whole employing without the filler design, resistance is little, and structure is compact and reasonable more.Pressure setting is convenient, during operation continuously interference-free set, non-maintaining use.The utility model also is furnished with special-purpose taking pressure pipe and joint, installs simpler and more direct and reliable.
Should be understood that these embodiments only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (3)
1. operated micropressure adjusting valve comprises valve body, valve gap, spool and valve body actuator, it is characterized in that described spool is provided with the balance diaphragm, is provided with the detection diaphragm in described actuator, also is provided with setting spring in valve gap.
2. operated micropressure adjusting valve according to claim 1, is characterized in that described actuator is connected pressure pipe by PRESSURE PIPE with pressure tapping connector, and described pressure pipe connects entrance point and the outlet end of valve body.
3. operated micropressure adjusting valve according to claim 2, be provided with stop valve, pressure gauge and filter on the pressure pipe that it is characterized in that being connected with the valve body entrance point successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651695 CN202946736U (en) | 2012-11-29 | 2012-11-29 | Self-reliance type micro-pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651695 CN202946736U (en) | 2012-11-29 | 2012-11-29 | Self-reliance type micro-pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946736U true CN202946736U (en) | 2013-05-22 |
Family
ID=48422438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651695 Expired - Fee Related CN202946736U (en) | 2012-11-29 | 2012-11-29 | Self-reliance type micro-pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114227A (en) * | 2018-10-16 | 2019-01-01 | 四川勃朗蜀威科技有限公司 | High stability direct-operated regulator door machine structure |
-
2012
- 2012-11-29 CN CN 201220651695 patent/CN202946736U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114227A (en) * | 2018-10-16 | 2019-01-01 | 四川勃朗蜀威科技有限公司 | High stability direct-operated regulator door machine structure |
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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: 20130522 Termination date: 20161129 |