CN208331787U - Continuous gas supply superpressure pressure protective device - Google Patents
Continuous gas supply superpressure pressure protective device Download PDFInfo
- Publication number
- CN208331787U CN208331787U CN201820690956.2U CN201820690956U CN208331787U CN 208331787 U CN208331787 U CN 208331787U CN 201820690956 U CN201820690956 U CN 201820690956U CN 208331787 U CN208331787 U CN 208331787U
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- China
- Prior art keywords
- valve
- pressure
- air supply
- superpressure
- gas
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Abstract
The utility model discloses a kind of continuous gas supply superpressure pressure protective devices; including air supply inlet, air supply outlet; pressure protection unit is connected between air supply inlet and air supply outlet, pressure protection unit includes the relief line being connected with air supply inlet, the check valve being connected with air supply outlet and the branch line being arranged on relief line；The pressure-regulating valve that relief line includes the pneumatic cut-off valve being connected with air supply inlet, is connected with pneumatic cut-off valve delivery outlet and check valve input port；The delivery outlet of superpressure opening valve is connected with the cylinder of pneumatic cut-off valve in branch line, and the input port of superpressure opening valve is placed between pressure-regulating valve and check valve.The utility model carries out tripping protection when can reduce to electronic control gas overpressure and depends on unduly, improves gas supply continuity, stability, equipment fault and halt production caused by avoiding because of gas supply superpressure.The utility model carries out overpressure protection when for continuous gas supply suitable for steady and continuous gas equipment in chemical industry, semicon industry.
Description
Technical field
The utility model belongs to gas supply technical field, is related to supply gas pressure protective device, specifically a kind of company
Continuous gas supply superpressure pressure protective device.
Background technique
Chemical industry, semicon industry often need to the stable continuous gas supply of pressure with gas at present, and pressure is used more than production equipment
It will cause the accidents such as halt production, gas equipment damage after atmospheric pressure.Gas supply superpressure pressure protective device in the prior art, it is usually right
High pressure gas is after pressure reducing valve depressurizes, after making supply gas pressure reach requirement through pipeline into production gas equipment
Carry out using.In such plenum system, pressure detecting and pressure adjustment process are related to automatic control equipment and pressure adjusting
Device, any one link, which goes wrong, can all cause to supply safety accident, and input cost is larger, manual maintenance work
Work amount is larger.
Utility model content
Existing in the prior art above insufficient to solve, the utility model is intended to provide a kind of continuous gas supply superpressure pressure
Protective device carries out tripping protection when reducing to reach to electronic control gas overpressure and depends on unduly, raising gas supply continuity,
Stability, the purpose of equipment fault and halt production caused by avoiding because of gas supply superpressure.
To achieve the above object, technical solution used by the utility model is as follows: a kind of continuous gas supply superpressure pressure guarantor
Protection unit, including air supply inlet, air supply outlet are connected with pressure protection unit, the pressure between air supply inlet and air supply outlet
Power protection location includes the relief line being connected with air supply inlet, the check valve being connected with air supply outlet and on relief line
The branch line of setting；The relief line includes the pneumatic cut-off valve being connected with air supply inlet and pneumatic cut-off valve delivery outlet
And the pressure-regulating valve that check valve input port is connected；The delivery outlet and pneumatic cut-off valve of superpressure opening valve in the branch line
Cylinder is connected, and the input port of superpressure opening valve is placed between pressure-regulating valve and check valve.
As the improvement of the utility model, more than two pressure protections are parallel between the air supply inlet and air supply outlet
Unit.
Another kind as the utility model improves, and the superpressure opening valve is opened when being more than 0.1MPa.
As the third improvement of the utility model, the air supply inlet and pneumatic cut-off valve, pneumatic cut-off valve and pressure
It is all pipeline connection between regulating valve, pressure-regulating valve and check valve, check valve and air supply outlet.
The cylinder of the superpressure opening valve and pneumatic cut-off valve, pressure are adjusted as a further improvement of the utility model,
It is all pipeline connection between pipeline between valve and check valve and superpressure opening valve input port.
Due to the adoption of the above technical solution, compared with prior art, acquired beneficial effect is the utility model:
The gas of the utility model is entered after pressure-regulating valve by pneumatic cut-off valve depressurizes gas, so that pressure reaches
Gas equipment is delivered to by air supply outlet after to gas supply normal pressure；Branch line is provided on relief line, superpressure is opened
The gas of check valve can be input to beyond opening after the gas pressure of gas equipment requirement on relief line by opening valve, be made
Gas enters in the cylinder of pneumatic cut-off valve, to control pneumatic cut-off valve closing, final cutting is by air supply inlet to relief pipe
Gas supply in road；
The utility model in parallel between air supply inlet and air supply outlet can be equipped with more than two pressure protection units, when one
Gas overpressure in a pressure protection unit and after cutting off the gas of air supply inlet entrance, the gas in remaining pressure protection unit
Can be unaffected and be normally carried out gas supply, the continuous gas supply during guarantee gas；
The utility model superpressure opening valve is opened when being more than supply gas pressure 0.1MPa, so as to the gas of gas equipment input
Body pressure is at the pressure of requirement, ensures the normal work of gas equipment, halt production caused by avoiding because of gas pressure
The case where occur；
The utility model carries out tripping protection when can reduce to electronic control gas overpressure and depends on unduly, can be improved
Continuity, the stability of gas supply, thus the case where avoiding because of gas equipment failure caused by supplying superpressure and stopping production appearance.
The utility model is suitable for steady and continuous gas equipment in chemical industry, semicon industry, when for continuous gas supply
Carry out overpressure protection.
Detailed description of the invention
With reference to the accompanying drawing and specific embodiment makees more detailed description to the utility model.
Fig. 1 is the structural schematic diagram of the utility model embodiment.
In figure: 1, air supply inlet pipeline；2, relief line；21, pneumatic cut-off valve；22, pressure-regulating valve；3, branched pipe
Road；31, cylinder；32, superpressure opening valve；4, check valve；5, air supply outlet pipeline.
Specific embodiment
A kind of continuous gas supply superpressure pressure protective device of embodiment 1
As shown in Figure 1, the present embodiment includes air supply inlet, pressure protection unit and air supply outlet.Pressure protection unit
Be placed between air supply inlet and air supply outlet: air supply inlet by air supply inlet pipeline 1 connect pressure protection unit, make gas by
Air supply inlet pipeline 1 enters pressure protection unit；Pressure protection unit connects air supply outlet by air supply outlet pipeline 5, makes to press
Gas is delivered to air supply outlet pipeline 5 in power protection location, then is delivered the gas in gas equipment by air supply outlet.
Pressure protection unit includes relief line 2, branch line 3 and check valve 4.
Relief line 2 includes pneumatic cut-off valve 21 and pressure-regulating valve 22.Pneumatic cut-off valve 21 is the prior art, is pneumatically cut
Disconnected valve 21 inputs the size of gas pressure by adjusting cylinder into valve body, controls the opening and closing of pneumatic cut-off valve 21.Gas
The input port of dynamic stop valve 21 is connected with air supply inlet pipeline 1, the delivery outlet and 22 pipeline of pressure-regulating valve of pneumatic cut-off valve 21
It is connected, the delivery outlet of pressure-regulating valve 22 is connected with the input port pipeline of check valve 4.Pressure-regulating valve 22 is the prior art, is used
It is depressurized in gas.
Branch line 3 includes superpressure opening valve 32, and branch line 3 is placed in 2 top of relief line, pressure-regulating valve 22 and list
It is connect to the pipeline between valve 4 with the input port pipeline of superpressure opening valve 32, the delivery outlet of superpressure opening valve 32 and pneumatic cutting
The air inlet duct of 21 upper cylinder of valve is connected.Superpressure opening valve 32 in the present embodiment is the prior art, and superpressure opening valve 32 is
Spring pressure control.Gas in pipelines flows into superpressure opening valve 32 after the decompression of pressure-regulating valve 22 on relief line 2, works as gas
Superpressure opening valve 32 is opened when more than normal supply gas pressure, that is, superpressure 32 setting value of opening valve, and the gas on relief line 2 is through super
Opening valve 32 is pressed to enter in the cylinder 31 of pneumatic cut-off valve 21, since the gas pressure that cylinder 31 is inputted to pneumatic cut-off valve 21 becomes
Greatly, it so that pneumatic cut-off valve 21 is closed in time, is adjusted so that cutting enters pressure through pneumatic cut-off valve 21 by air supply inlet pipeline 1
Gas in valve 22.When gas belongs to normal supply gas pressure, superpressure opening valve 32 is in close state, at this point, relief line 2
On gas decompression is provided from check valve 4 into air supply outlet pipeline 5 after meet the gas of requirement.Superpressure in the present embodiment
The setting value of opening valve 32 is 0.1MPa, is normal supply gas pressure when gas pressure is in 0.1MPa or less.
Check valve 4 flows into the gas after decompression unidirectionally in air supply outlet pipeline 5 through pipeline, and check valve 4 is the prior art.
In parallel more than two pressure protection units, this reality can be equipped between air supply inlet pipeline 1 and air supply outlet pipeline 5
There are two pressure protection units in parallel by Shi Zhongshe.In this way, the pneumatic cut-off valve 21 in one of pressure protection unit is cut
After breaking to the gas supply of relief line 2, the relief line 2 in remaining pressure protection unit can also be supplied air supply outlet, be protected
Demonstrate,prove continuous, stable gas supply.
When using the present embodiment, gas by 1 feed pressure protection location of air supply inlet pipeline, through pneumatic cut-off valve 21 into
Enter in pressure-regulating valve 22, after pressure-regulating valve 22 is by gas decompression, a part of gas is flowed into superpressure opening valve 32, at this time
It is divided into two kinds of situations:
If gas pressure in 0.1MPa hereinafter, if superpressure opening valve 32 remain turned-off so that the gas after decompression flow into it is single
To valve 4, then unidirectional flow into supplies in output channel 5, to supply to gas equipment；
If gas pressure is more than 0.1MPa, the gas pressure after illustrating decompression is beyond just common atmospheric pressure, then superpressure is opened
Valve 32 is opened, so that gas flows into the cylinder 31 in pneumatic cut-off valve 21 through superpressure opening valve 32 after decompression, to make pneumatic
Stop valve 21 is closed, and gas supply of the air supply inlet pipeline 1 to this pressure unit is cut off, and the gas of superpressure is avoided to flow into gas equipment
In.
The stabilization to gas equipment, continuous gas supply are completed as a result,.
Claims (4)
1. a kind of continuous gas supply superpressure pressure protective device, including air supply inlet, air supply outlet, air supply inlet and air supply outlet it
Between be connected with pressure protection unit, it is characterised in that: the pressure protection unit include the relief line being connected with air supply inlet,
The check valve being connected with air supply outlet and the branch line being arranged on relief line；
The relief line includes that the pneumatic cut-off valve being connected with air supply inlet and pneumatic cut-off valve delivery outlet and check valve input
The connected pressure-regulating valve of mouth；
The delivery outlet of superpressure opening valve is connected with the cylinder of pneumatic cut-off valve in the branch line, the input port of superpressure opening valve
It is placed between pressure-regulating valve and check valve.
2. continuous gas supply superpressure pressure protective device according to claim 1, it is characterised in that: the air supply inlet and confession
Gas is parallel with more than two pressure protection units between outlet.
3. continuous gas supply superpressure pressure protective device according to claim 1, it is characterised in that: the superpressure opening valve is super
It is opened when crossing 0.1MPa.
4. continuous gas supply superpressure pressure protective device described in any one of -3 according to claim 1, it is characterised in that: described
It air supply inlet and pneumatic cut-off valve, pneumatic cut-off valve and pressure-regulating valve, pressure-regulating valve and check valve, check valve and supplies out
It is all pipeline connection between mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820690956.2U CN208331787U (en) | 2018-05-10 | 2018-05-10 | Continuous gas supply superpressure pressure protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820690956.2U CN208331787U (en) | 2018-05-10 | 2018-05-10 | Continuous gas supply superpressure pressure protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331787U true CN208331787U (en) | 2019-01-04 |
Family
ID=64777411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820690956.2U Expired - Fee Related CN208331787U (en) | 2018-05-10 | 2018-05-10 | Continuous gas supply superpressure pressure protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208331787U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594590A (en) * | 2019-09-23 | 2019-12-20 | 天津市正方科技发展有限公司 | Overpressure self-closing protection device for crude oil conveying pipeline |
| CN111156413A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen gas pipeline system |
-
2018
- 2018-05-10 CN CN201820690956.2U patent/CN208331787U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594590A (en) * | 2019-09-23 | 2019-12-20 | 天津市正方科技发展有限公司 | Overpressure self-closing protection device for crude oil conveying pipeline |
| CN110594590B (en) * | 2019-09-23 | 2023-04-07 | 天津市正方科技发展有限公司 | Overpressure self-closing protection device for crude oil conveying pipeline |
| CN111156413A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen gas pipeline system |
| CN111156413B (en) * | 2019-12-30 | 2021-01-05 | 清华大学 | Hydrogen gas pipeline system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190104 Termination date: 20190510 |