CN203551050U - Pressure tolerance safety and pressure testing full-automatic detection device for gas flow instrument - Google Patents
Pressure tolerance safety and pressure testing full-automatic detection device for gas flow instrument Download PDFInfo
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- CN203551050U CN203551050U CN201320612668.2U CN201320612668U CN203551050U CN 203551050 U CN203551050 U CN 203551050U CN 201320612668 U CN201320612668 U CN 201320612668U CN 203551050 U CN203551050 U CN 203551050U
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- Prior art keywords
- pressure
- main pipeline
- automatic detection
- flow instrument
- valve
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model belongs to the field of instrument detection, in particular to a novel pressure tolerance safety and pressure testing full-automatic detection device for a gas flow instrument. The pressure tolerance safety and pressure testing full-automatic detection device comprises a gas cylinder, wherein the gas cylinder is connected with a main pipeline through a pressure reducing valve; the front part and the back part of the main pipeline are provided with a plurality of pressure acquisition points respectively; branch pipelines are arranged at the pressure acquisition points respectively; each branch pipeline is provided with a hand valve for controlling each branch pipeline to be switched on/off; a plurality of branches on the front part of the main pipeline are further provided with pressure feedback sensors of different measuring ranges respectively; a plurality of branches on the back part of the main pipeline are further provided with standard meters which correspond to the measuring ranges of the pressure feedback sensors respectively; the middle part and the tail part of the main pipeline are provided with electromagnetic valves; the main pipeline is connected with a flow instrument to be detected through a safety valve and a meter clamping device. By adopting the detection device, the sealing performance and pressure tolerance safety performance of a gas flow meter can be detected in a full-automatic way, and a pressure sensor can be calibrated without detaching an integral gas flow meter.
Description
Technical field
The utility model belongs to instrument and meter detection field, specifically the withstand voltage safety of a kind of new gas flow instrument and pressure test full-automatic detection apparatus.
Background technology
The domestic suitable sealing property to gas flow instrument, withstand voltage security performance and the checkout equipment of calibrating being built in the pressure transducer of gas meter inside of lacking at present.The method that existing sealing property to gas flow instrument, withstand voltage security performance detect is that water is that medium detects, but water has the effect of Damage of Corroded to the movable member of the gas meter after assembling, and the insulating property of the flow sensor to charged work have infringement.The main method of the built-in pressure transducer of calibration integrated gas flowmeter is dismantled at present, takes out pressure transducer, after having calibrated, then re-assemblies.This calibration steps is wasted time and energy, and can cause very large risk for mechanical damage to gas meter.
Utility model content
Technical problem to be solved in the utility model is, the withstand voltage safety of a kind of gas flow instrument and pressure test full-automatic detection apparatus are provided, can automatically detect gas meter sealing property, withstand voltage security performance, can also be without just energy calibrating pressure sensor of dismounting integrated gas flowmeter, infringement to instrument is little, and time saving and energy saving.
The technical solution of the utility model is: the withstand voltage safety of a kind of gas flow instrument and pressure test full-automatic detection apparatus, comprise gas cylinder, described gas cylinder is connected with main pipeline by a reduction valve, the front and rear of main pipeline is respectively arranged with multiple pressure acquisition points, on described multiple pressure acquisition point, be respectively arranged with bypass line, in described each bypass line, be provided with the hand valve of controlling bypass line break-make; On multiple branch roads of main pipeline front portion, be also respectively arranged with the different pressure feedback sensor of range, on multiple branch roads at main pipeline rear portion, be also respectively arranged with and described pressure feedback transducer range standard scale one to one; The middle part of main pipeline is provided with solenoid valve; Between the afterbody of main pipeline and exhausr port, be also provided with solenoid valve, the afterbody of main pipeline is connected with flow instrument to be measured with meter-clamping apparatus by safety valve.
Described pressure feedback sensor is all connected with control system with standard scale.
Described hand valve is automatically controlled hand valve.
Described reduction valve is electronic reduction valve.
In described each bypass line, be all provided with tensimeter.
The rear portion of described main pipeline be also provided with a bypass line, in described bypass line, be provided with the hand valve of this bypass line break-make of temperature sensor, tensimeter and control.
Between described gas cylinder and reduction valve, be also provided with an elementary reduction valve.
Between described gas cylinder and reduction valve, be also provided with a filtrator.
Before or after reduction valve, be provided with inlet pressure table.
The front and back of reduction valve are respectively arranged with inlet pressure table.
Between described main pipeline afterbody and exhausr port, be also provided with exhaust hand valve.
Described exhaust hand valve is electric control exhaust hand valve.
The utility model has the advantages that: the gas medium that this device adopts is for detecting medium, and little to tested instrument damage, aero operating pressure voltage stabilizing within the scope of certain pressure is adjustable, has also just guaranteed the accuracy of test result; Thereby on pipeline, be provided with safety valve energy releasing pressure automatically when pressure limit, ensured the safety of the person and equipment; Voltage-withstand test, performing leak test and instrument that this device can utilize software automatic flow to complete gas meter carry the work such as the detection of pressure transducer, make operating personnel away from high pressure source in the situation that, to complete detection, ensured operating personnel's personal safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Embodiment
As shown in the figure: the withstand voltage safety of a kind of gas flow instrument and pressure test full-automatic detection apparatus, comprise gas cylinder 1, described gas cylinder is connected with main pipeline by an electronic reduction valve 2, the front and rear of main pipeline is respectively arranged with multiple pressure acquisition points, on described multiple pressure acquisition point, be respectively arranged with bypass line, in described each bypass line, be provided with the hand valve 12 of controlling bypass line break-make; Described hand valve 12 can be automatically controlled, also can be manual.On multiple branch roads of main pipeline front portion, be also respectively arranged with the different pressure feedback sensor 6 of range, on multiple branch roads at main pipeline rear portion, be also respectively arranged with and described pressure feedback sensor 6 ranges standard scale 8 one to one; The middle part of main pipeline is provided with solenoid valve 10; Between the afterbody of main pipeline and exhausr port, be also provided with solenoid valve 10, the afterbody of main pipeline is connected with flow instrument to be measured with meter-clamping apparatus by safety valve 11.
Described pressure feedback sensor 6 is all connected with control system with standard scale 8.
In described each bypass line, be all provided with tensimeter 7, in system work process, can judge by the demonstration result of manual observation tensimeter 7 sealing property of flow instrument to be measured.
The rear portion of described main pipeline be also provided with a bypass line, in described bypass line, be provided with temperature sensor 9, tensimeter 7 and control the hand valve 12 of this bypass line break-make.
Between described gas cylinder 1 and reduction valve 2, be also provided with an elementary reduction valve 4.
Between described gas cylinder 1 and reduction valve 2, be also provided with a filtrator 5.
Before or after reduction valve 2, be provided with inlet pressure table 3, can detect the pressure of the gas that enters main pipeline, thereby be also convenient to regulate and control to enter the gaseous tension of main pipeline.
The front and back of reduction valve 2 are respectively arranged with inlet pressure table 3.
Between described main pipeline afterbody and exhausr port, be also provided with exhaust hand valve 13, described exhaust hand valve 13 can be automatically controlled also can be manual.
The course of work of system: first determine the range of pressure transducer 6, then select the standard scale 8 identical with pressure transducer 6 ranges.Hand valve 12 in the bypass line at selected pressure transducer 6 places is opened, hand valve 12 in the bypass line that all the other are contained to pressure transducer 6 cuts out, equally, hand valve 12 in the bypass line at selected standard scale 8 places is opened, and the hand valve 12 in the bypass line that all the other are contained to standard scale 8 cuts out.The afterbody of main pipeline and flow instrument to be measured are connected, close the solenoid valve 10 between main pipeline afterbody and exhausr port, open the solenoid valve 10 at the middle part of main pipeline.
The source of the gas of enough calibrating use is provided by high-pressure nitrogen bottle, by reduction valve 4, completes step-down processing for the first time, through 5 one-tenth clean airs of filter, enter electronic reduction valve 2 and carry out step-down processing for the second time.Gas enters main pipeline, and when after the pressure stability in supervisor, control system is recorded the demonstration result of selected pressure transducer 6 and selected standard scale 8.Close the solenoid valve 10 at the middle part of main pipeline, after a period of time, again record the demonstration result of selected pressure transducer 6 and selected standard scale 8, by the contrast of twice demonstration result, detect the sealing property of flow instrument to be measured.
The solenoid valve 10 of opening after detection completes between main pipeline afterbody and exhausr port carries out pressure release.
Claims (10)
1. the withstand voltage safety of gas flow instrument and pressure test full-automatic detection apparatus, comprise gas cylinder (1), described gas cylinder is connected with main pipeline by a reduction valve (2), the front and rear of main pipeline is respectively arranged with multiple pressure acquisition points, on described multiple pressure acquisition point, be respectively arranged with bypass line, in described each bypass line, be provided with the hand valve (12) of controlling bypass line break-make; On multiple branch roads of main pipeline front portion, be also respectively arranged with the different pressure feedback sensor (6) of range, on multiple branch roads at main pipeline rear portion, be also respectively arranged with and described pressure feedback sensor (6) range standard scale (8) one to one; The middle part of main pipeline is provided with solenoid valve (10); Between the afterbody of main pipeline and exhausr port, be also provided with solenoid valve (10), the afterbody of main pipeline is connected with flow instrument to be measured with meter-clamping apparatus by safety valve (11).
2. the withstand voltage safety of flow instrument according to claim 1 and pressure test full-automatic detection apparatus, is characterized in that: described pressure feedback sensor (6) is all connected with control system with standard scale (8).
3. the withstand voltage safety of flow instrument according to claim 1 and pressure test full-automatic detection apparatus, is characterized in that: described hand valve (12) is automatically controlled hand valve.
4. the withstand voltage safety of flow instrument according to claim 1 and pressure test full-automatic detection apparatus, is characterized in that: described reduction valve (2) is electronic reduction valve.
5. the withstand voltage safety of flow instrument according to claim 1 and pressure test full-automatic detection apparatus, is characterized in that: in described each bypass line, be all provided with tensimeter (7).
6. the withstand voltage safety of flow instrument according to claim 1 and pressure test full-automatic detection apparatus, it is characterized in that: the rear portion of described main pipeline be also provided with a bypass line, in described bypass line, be provided with temperature sensor (9), tensimeter (7) and control the hand valve (12) of this bypass line break-make.
7. the withstand voltage safety of flow instrument according to claim 1 and pressure test full-automatic detection apparatus, is characterized in that: between described gas cylinder (1) and reduction valve (2), be also provided with an elementary reduction valve (4).
8. the withstand voltage safety of flow instrument according to claim 1 and pressure test full-automatic detection apparatus, is characterized in that: between described gas cylinder (1) and reduction valve (2), be also provided with a filtrator (5).
9. the withstand voltage safety of flow instrument according to claim 1 and pressure test full-automatic detection apparatus, is characterized in that: before or after reduction valve (2), be provided with inlet pressure table (3).
10. the withstand voltage safety of flow instrument according to claim 1 and pressure test full-automatic detection apparatus, is characterized in that: between described main pipeline afterbody and exhausr port, be also provided with exhaust hand valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612668.2U CN203551050U (en) | 2013-09-30 | 2013-09-30 | Pressure tolerance safety and pressure testing full-automatic detection device for gas flow instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612668.2U CN203551050U (en) | 2013-09-30 | 2013-09-30 | Pressure tolerance safety and pressure testing full-automatic detection device for gas flow instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551050U true CN203551050U (en) | 2014-04-16 |
Family
ID=50469148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320612668.2U Expired - Fee Related CN203551050U (en) | 2013-09-30 | 2013-09-30 | Pressure tolerance safety and pressure testing full-automatic detection device for gas flow instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551050U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092160A (en) * | 2014-05-07 | 2015-11-25 | 哈尔滨飞机工业集团有限责任公司 | Pressure reducer verifying device |
| CN105241526A (en) * | 2015-08-11 | 2016-01-13 | 太仓市高泰机械有限公司 | Parallel type air flow meter detector |
| CN104267747B (en) * | 2014-09-18 | 2016-08-03 | 金永德实验室设备有限公司 | A flow detection device and its numerical modeling method |
| CN106595953A (en) * | 2016-12-21 | 2017-04-26 | 杭州依技设备成套工程有限公司 | Medical oxygen metering instrument metering standard device |
| CN107843392A (en) * | 2017-12-20 | 2018-03-27 | 苏州市建筑科学研究院集团股份有限公司 | A kind of pressure-measuring system auto-calibration examines equipment |
| CN108332823A (en) * | 2018-01-08 | 2018-07-27 | 东莞市奥纳水务科技有限公司 | Water meter multi-pressure value and flow value comprehensive performance test system and test method |
| CN113405723A (en) * | 2021-05-13 | 2021-09-17 | 中广核核电运营有限公司 | Transmitter damping time testing device and testing method |
-
2013
- 2013-09-30 CN CN201320612668.2U patent/CN203551050U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092160A (en) * | 2014-05-07 | 2015-11-25 | 哈尔滨飞机工业集团有限责任公司 | Pressure reducer verifying device |
| CN104267747B (en) * | 2014-09-18 | 2016-08-03 | 金永德实验室设备有限公司 | A flow detection device and its numerical modeling method |
| CN105241526A (en) * | 2015-08-11 | 2016-01-13 | 太仓市高泰机械有限公司 | Parallel type air flow meter detector |
| CN106595953A (en) * | 2016-12-21 | 2017-04-26 | 杭州依技设备成套工程有限公司 | Medical oxygen metering instrument metering standard device |
| CN106595953B (en) * | 2016-12-21 | 2019-01-29 | 杭州依技设备成套工程有限公司 | Medical oxygen class measurement instrument metrological standard unit |
| CN107843392A (en) * | 2017-12-20 | 2018-03-27 | 苏州市建筑科学研究院集团股份有限公司 | A kind of pressure-measuring system auto-calibration examines equipment |
| CN108332823A (en) * | 2018-01-08 | 2018-07-27 | 东莞市奥纳水务科技有限公司 | Water meter multi-pressure value and flow value comprehensive performance test system and test method |
| CN108332823B (en) * | 2018-01-08 | 2021-01-26 | 东莞市奥纳水务科技有限公司 | Water meter multi-pressure value and flow value comprehensive performance test system and test method |
| CN113405723A (en) * | 2021-05-13 | 2021-09-17 | 中广核核电运营有限公司 | Transmitter damping time testing device and testing method |
| CN113405723B (en) * | 2021-05-13 | 2023-02-24 | 中广核核电运营有限公司 | A transmitter damping time testing device and testing method |
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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 |
Granted publication date: 20140416 Termination date: 20180930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |