CN207540740U - A kind of safety valve testing system for saving nitrogen - Google Patents
A kind of safety valve testing system for saving nitrogen Download PDFInfo
- Publication number
- CN207540740U CN207540740U CN201721110089.2U CN201721110089U CN207540740U CN 207540740 U CN207540740 U CN 207540740U CN 201721110089 U CN201721110089 U CN 201721110089U CN 207540740 U CN207540740 U CN 207540740U
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- safety valve
- valve
- water
- clamping seat
- 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 - Fee Related
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a kind of safety valve testing system for saving nitrogen, including checking table；The checking table is connect with clamping seat, first medium bottle and water pump are parallel on clamping seat, water pump is connect by pipeline with second medium case, and water valve is equipped on the pipeline between the water pump and clamping seat, air valve is equipped on the pipeline between the clamping seat and first medium bottle.When being verified, valve internal is largely water and trace nitrogen gas, and due to water, for liquid, the volume change when being pressurized is smaller.There was only minimum gas discharge when valve take-off, reduce to verifying the impact of personnel and reducing the damage of sealing surface of safety valve；It is largely water since present apparatus verification uses medium, the usage amount of checking procedure kind nitrogen is greatly saved；Valve internal has micro nitrogen during due to verification, the differentiation for solving safety valve testing take-off, it is ensured that safety valve testing accuracy and reduce the damage to sealing surface.
Description
Technical field
The utility model is related to a kind of safety valve testing systems for saving nitrogen.
Background technology
Existing Regulating Pressure of Relief Values checking table verification is added always using nitrogen pressure by booster pump in equipment at present
Pressure verification.During the equipment verification high-pressure safety valve, the bleed pressure about 13MPa of gas cylinder is connected under normal circumstances, then by booster pump
32MPa is pressurized to, often supercharging once at least wants one bottle of nitrogen, by safety valve testing program, verifies a DN50, adjusts pressure and be
The safety valve of 22MPa is at least with 3 bottles of nitrogen；Valve internal is high pressure gas during safety valve testing, during valve take-off, discharge
High pressure gas volume moment rapidly expansion verification personnel and equipment are caused to impact, there are larger security risk, at the same by
Blow pressure is higher larger to sealing surface damage after valve take-off.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of safety valve testing system for saving nitrogen.
The utility model is achieved by the following technical programs.
A kind of safety valve testing system for saving nitrogen provided by the utility model, including checking table；The checking table with
Clamping seat connects, and is parallel with first medium bottle and water pump on clamping seat, water pump is connect by pipeline with second medium case, described
Water valve on the pipeline between water pump and clamping seat is installed, gas is installed on the pipeline between the clamping seat and first medium bottle
Valve.
The water pump and first medium bottle parallel connection are followed by the liaison tube being connect with clamping seat as high-pressure air-water mixing tube.
Pressure gauge is also equipped on the liaison tube, pressure release is also equipped on the pipeline connected between pressure gauge and liaison tube
Valve.
The relief valve is needle-like relief valve.
The first medium bottle is nitrogen cylinder.
The second medium case is water tank.
The beneficial effects of the utility model are：
1st, safety valve mixing wastewater with air calibration equipment, when being verified, valve internal is largely water and trace nitrogen gas,
Due to water, for liquid, the volume change when being pressurized is smaller.There was only minimum gas discharge when valve take-off, reduce to verifying people
The impact of member and the damage for reducing sealing surface of safety valve；
2nd, it is largely water since present apparatus verification uses medium, the use of checking procedure kind nitrogen is greatly saved
Amount；
Valve internal has micro nitrogen when the 3rd, due to verification, the differentiation for solving safety valve testing take-off, it is ensured that peace
Full valve verifies accuracy and reduces the damage to sealing surface.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
In figure：1- checking tables, 2- clamping seats, 3- water pumps, 4- second medium casees, 5- first medium bottles, 6- pressure gauges, 7- water
Valve, 8- air valves, 9- relief valves, 10- liaison tubes.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
A kind of safety valve testing system for saving nitrogen, including checking table 1；The checking table 1 is connect with clamping seat 2, dress
First medium bottle 5 and water pump 3 are parallel on holder 2, water pump 3 is connect by pipeline with second medium case 4, the water pump 3 and dress
Water valve 7 on the pipeline between holder 2 is installed, air valve 8 is installed on the pipeline between the clamping seat 2 and first medium bottle 5.
The water pump 3 and 5 parallel connection of first medium bottle are followed by the liaison tube 10 being connect with clamping seat 2 and are mixed for high-pressure air-water
Pipe.
Pressure gauge 6 is also equipped on the liaison tube 10, is also installed on the pipeline connected between pressure gauge 6 and liaison tube 10
There is relief valve 9.
The relief valve 9 is needle-like relief valve.
The first medium bottle 5 is nitrogen cylinder.
The second medium case 4 is water tank.
The utility model gripping means grips safety valve when verifying safety valve, first slowly opening air valve adds nitrogen cylinder
4MPa is depressed into, then air valve, gas cylinder end tracheae is changed to high-pressure hydraulic pump, finally carry out water pump pressurization verification.
Claims (6)
1. a kind of safety valve testing system for saving nitrogen, including checking table (1), it is characterised in that：The checking table (1) and dress
Holder (2) connects, and is parallel with first medium bottle (5) and water pump (3) on clamping seat (2), water pump (3) passes through pipeline and second medium
Case (4) connects, and water valve (7), the clamping seat (2) and first are equipped on the pipeline between the water pump (3) and clamping seat (2)
Air valve (8) is installed on the pipeline between medium bottle (5).
2. the safety valve testing system of nitrogen is saved as described in claim 1, it is characterised in that：The water pump (3) and first
Medium bottle (5) parallel connection is followed by the liaison tube (10) being connect with clamping seat (2) as high-pressure air-water mixing tube.
3. the safety valve testing system of nitrogen is saved as claimed in claim 2, it is characterised in that：On the liaison tube (10) also
Pressure gauge (6) is installed, relief valve (9) is also equipped on the pipeline connected between pressure gauge (6) and liaison tube (10).
4. the safety valve testing system of nitrogen is saved as claimed in claim 3, it is characterised in that：The relief valve (9) is needle
Type relief valve.
5. the safety valve testing system of nitrogen is saved as described in claim 1, it is characterised in that：The first medium bottle (5)
For nitrogen cylinder.
6. the safety valve testing system of nitrogen is saved as described in claim 1, it is characterised in that：The second medium case (4)
For water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721110089.2U CN207540740U (en) | 2017-08-31 | 2017-08-31 | A kind of safety valve testing system for saving nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721110089.2U CN207540740U (en) | 2017-08-31 | 2017-08-31 | A kind of safety valve testing system for saving nitrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207540740U true CN207540740U (en) | 2018-06-26 |
Family
ID=62608666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721110089.2U Expired - Fee Related CN207540740U (en) | 2017-08-31 | 2017-08-31 | A kind of safety valve testing system for saving nitrogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207540740U (en) |
-
2017
- 2017-08-31 CN CN201721110089.2U patent/CN207540740U/en not_active Expired - Fee Related
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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: 20180626 Termination date: 20200831 |