CN202869615U - Device for calibrating gas tightness of gas meters - Google Patents
Device for calibrating gas tightness of gas meters Download PDFInfo
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- CN202869615U CN202869615U CN 201220637106 CN201220637106U CN202869615U CN 202869615 U CN202869615 U CN 202869615U CN 201220637106 CN201220637106 CN 201220637106 CN 201220637106 U CN201220637106 U CN 201220637106U CN 202869615 U CN202869615 U CN 202869615U
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- flow meter
- gas meter
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Abstract
The utility model discloses a device for calibrating the gas tightness of gas meters, which comprises a gas meter fixture and a gas closed loop, wherein the gas closed loop comprises a stop valve, a gas meter and a pressure display controller; the pressure display controller is an intelligent controller, and the stop valve is an electromagnetic valve; the gas closed loop also comprises a pressure transmitter, and the pressure transmitter and the intelligent controller drive the stop valve; a pressure reducing valve and a flow regulator are arranged between a gas source and the electromagnetic valve; and a newly increased baseplate is arranged on an original baseplate of the gas meter fixture. According to the utility model, the operating state of the electromagnetic valve is stable, the intelligent controller is large in pressure setting range and high in resolution, the transmitter is large in measuring range and high in resolution, and the pressure reducing valve and the flow regulator ensure the constant pressure and constant current of gas source inputting. The device disclosed by the utility model is simple in structure and high in degree of automation, and the calibration accuracy and efficiency of gas meters are improved.
Description
Technical field:
The utility model relates to a kind of instrument calibration device, relates in particular to the device of gas meter, flow meter impermeability calibrating.
Background technology:
Along with rock gas is widely used in daily life, gas meter, flow meter has been come into huge numbers of families.Rock gas is extremely inflammable, if gas meter, flow meter leaks, consequence is hardly imaginable.For the accuracy of gas meter, flow meter, its security is even more important.
The bubble-tight method of measuring instrument generally adopts the pressure method of changing.The method snaps in the gas meter, flow meter anchor clamps to gas meter, flow meter, as source of the gas, adopts stop valve that closed loop is sealed with a miniwatt air pump, adopts a digital pressure gauge, observes manometric numerical value change and judges whether gas meter, flow meter leaks.Its principle is stop valve, gas meter, flow meter, digital pressure gauge formation closed loop, source of the gas injects closed loop through the stop valve of opening, observe the tensimeter indicating value this moment, close rapidly stop valve when reaching predetermined value, observed digital pressure gauge 3 minutes, and whether descended with the indicating value of its demonstration and judge whether gas meter, flow meter leaks.The detection method machinery of above-mentioned prior art, degree of accuracy is low, and intelligent degree is low, and the concrete shortcoming that exists is: the common stop valve that 1, uses need to manually be pulled stop valve and control its folding to pressurize to pick-up unit, and operation is relatively more tired, and efficient is low; In addition, stop valve closes not in place behind switch repeatedly easily, causes the gas circuit internal pressure to continue to rise; Moreover the bad grasp of air inflow during manual pressure is embodied in the size of valve opening and the bad control of time length of unlatching, valve is opened too smallly, and pressure process is just lost time, and opens excessive, often exceed predetermined value, cause overvoltage, very easily damage tested gas meter, flow meter.2, digital pressure gauge resolution is low, and is insensitive for the minute leakage of gas meter, flow meter, easily causes erroneous judgement.3, different manufacturers, the gas meter, flow meter of different size model suitable for reading and go to the bottom between distance there are differences, constantly adjust the hold down gag of anchor clamps and the distance that base is asked, could satisfy the calibrating requirement.
The utility model content:
The purpose of this utility model is to provide a kind of automaticity high, the gas meter, flow meter impermeability calibrating installation that accuracy is high.
The utility model comprises gas meter, flow meter anchor clamps, confined gas loop; Gas meter, flow meter is stuck on the gas meter, flow meter anchor clamps; Source of the gas is to the closed loop air feed; The confined gas loop comprises stop valve, gas meter, flow meter, and pressure display control instrument, described pressure display control instrument are intelligent controller, stop valve is solenoid valve; Closed loop also comprises pressure unit, and pressure unit and intelligent controller drive stop valve.
Between source of the gas and solenoid valve, establish reduction valve and flow regulator.
On the former base plate of gas meter, flow meter anchor clamps, add newly-increased base plate, be provided with snubber assembly between newly-increased base plate and the former base plate.
The gas meter, flow meter anchor clamps are provided with limit switch, the unlatching of the newly-increased residing a certain position control limit switch of base plate, the unlatching of limit switch control intelligent controller.
The utility model, replaced common stop valve with solenoid valve, pressurization, pressurize robotization have been realized, saved the trouble of pulling stop valve with hand, and device reaches automatic-closing valve after the set pressure, the sealing gas circuit, can not cause overvoltage, the stable working state of solenoid valve simultaneously, can not appear at work a period of time after, switch closes situation not in place; Working pressure transmitter and intelligent controller drive solenoid valve, and intelligent controller can carry out to pressure the setting of bound, and setting range is large and resolution is high, and the large resolution of transmitter measurement range is high, and the two is in conjunction with the monitoring that can realize micro leakage; In addition, install reduction valve and flow regulator additional in the prime of solenoid valve, guaranteed the constant pressure and flow of source of the gas input.On the former base plate of gas meter, flow meter anchor clamps, added newly-increased base plate, and snubber assembly such as back-moving spring etc. have been established between newly-increased base plate and former base plate, increase the free travel of frock clamp, when clamping gas meter, flow meter, no longer needed to adjust the hold down gag of frock clamp and the vertical range between the base plate; If limit switch, can be after gas meter, flow meter be accurately sandwiched in the frock clamp, the limit switch auto-closing so that auto-controller action, the control solenoid valve is opened, and starts the calibrating operation of gas meter, flow meter.The utility model is simple in structure, and automaticity is high, and the accuracy of detecting gas meter and efficient improve.
Description of drawings:
Fig. 1 is prior art detecting gas meter device synoptic diagram.
Fig. 2 is the utility model detecting gas meter device synoptic diagram.
Fig. 3 is detecting gas meter frock clamp structural representation.
Fig. 4 is the utility model electric control theory figure.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure, 1-gas meter, flow meter, the common stop valve of 2-, 3-Displaying Meter, 4-source of the gas, 5-intelligent controller, 6-pressure unit, 7-solenoid valve, 8-flow regulator, 9-reduction valve, 10-connect the gas meter, flow meter outlet, 11-connects the gas meter, flow meter import, the former base plate of 12-, and 13-increases base plate newly, 14-stage clip, 15-limit switch.
The detecting gas meter device of prior art as shown in Figure 1, air pump as source of the gas 4 to the calibrating installation air feed, adopt 2 pairs of closed loop of common stop valve to seal, adopt a digital pressure gauge to observe to judge with the variation of logarithm value whether gas meter, flow meter leaks as Displaying Meter 3.The principle of work of device is common stop valve 2, gas meter, flow meter 1, digital pressure gauge formation closed loop, source of the gas 4 injects closed loop through the common stop valve 2 of opening, at this moment, observe digital pressure representative value, close rapidly common stop valve when reaching predetermined value, observe digital pressure representative value, whether the pressure indicating value that shows with digital pressure gauge descends at the appointed time and judges whether gas meter, flow meter leaks.
Detecting gas meter device of the present utility model as shown in Figure 2,4 pairs of closed loop air feed of source of the gas; The confined gas loop comprises solenoid valve 7, gas meter, flow meter 1, and intelligent controller 5, pressure unit 6, pressure unit 6 drives solenoid valve 7 with intelligent controller 5, establishes reduction valve 9 and flow regulator 8 between source of the gas 4 and solenoid valve 7.The principle of work of device is after tested gas meter, flow meter accurately sandwiches in the frock clamp of larger free travel, pulls cam lever compressing limit switch 15 downwards and closes, and the intelligent controller action, the control solenoid valve is opened, and calibrating operates and begins.By the source of the gas of air pump output, the reduction valve 9 of flowing through, flow regulator 8, solenoid valve 7 inject to the closed loop that is comprised of tracheae and gas meter, flow meter.The signal that this moment, intelligent controller 5 reception pressure units 6 transmitted, the signal of reception reaches predetermined value, and intelligent controller is just controlled closed electromagnetic valve and is carried out pressurize.Form closed loop from the solenoid valve rear class at this moment, the force value that intelligent controller shows is real-time force value in the closed loop, observes the tensimeter indicating value, and at the appointed time, decline judges that then gas meter, flow meter is defective such as force value.
Detecting gas meter frock clamp structural representation as shown in Figure 3.Add newly-increased base plate 13 on the former base plate of gas meter, flow meter anchor clamps, have snubber assembly between newly-increased base plate and the former base plate 12, snubber assembly is such as at two base plates four jiaos stage clip 14 etc. being set.Other bit switch 15 of limiting, the unlatching of the newly-increased residing a certain position control limit switch of base plate, the unlatching of limit switch control intelligent controller.
As shown in Figure 4, KZY is intelligent controller, and YV is solenoid valve, and S is pressure signal, and K is the intelligent controller internal switch, and K1 is limit switch.Such as Fig. 2, Fig. 3, shown in Figure 4, when anchor clamps were in reset mode, solenoid valve 7 was in normally off.Open the intelligent controller power supply, this moment, the pressure signal of pressure unit 6 input intelligent controllers 5 did not reach set pressure, then intelligent controller internal switch K closure is supplied gas to drive solenoid valve 7 unlatchings, but this moment, anchor clamps were in reset mode, limit switch K1 is in off-state, solenoid valve can't Ji open, and is in holding state.The pulling clamp cam lever forces the limit switch pressurized closed downwards, and this moment, solenoid valve got electric-opening, the gas inject closed loop, and the pressure unit detected pressures changes, and reaches setting value, and internal switch K disconnects, and the solenoid valve dead electricity is closed, the beginning pressurize.After calibrating finished, anchor clamps resetted, the limit switch K1 Ji of break, and gas circuit pressure returns zero, and the pressure signal of pressure unit input this moment intelligent controller does not reach set pressure, and internal switch K is closure again, keeps holding state.
Claims (4)
1. a gas meter, flow meter impermeability calibrating installation comprises gas meter, flow meter anchor clamps, confined gas loop; Gas meter, flow meter is stuck on the gas meter, flow meter anchor clamps; Source of the gas is to the closed loop air feed; The confined gas loop comprises stop valve, gas meter, flow meter, and pressure display control instrument is characterized in that: described pressure display control instrument is intelligent controller, stop valve is solenoid valve; Closed loop also comprises pressure unit, and pressure unit and intelligent controller drive stop valve.
2. gas meter, flow meter impermeability calibrating installation as claimed in claim 1 is characterized in that: establish reduction valve and flow regulator between source of the gas and solenoid valve.
3. gas meter, flow meter impermeability calibrating installation as claimed in claim 1 is characterized in that: add newly-increased base plate on the former base plate of described gas meter, flow meter anchor clamps, have snubber assembly between newly-increased base plate and the former base plate.
4. gas meter, flow meter impermeability calibrating installation as claimed in claim 3, it is characterized in that: described gas meter, flow meter anchor clamps are provided with limit switch, the unlatching of the newly-increased residing a certain position control limit switch of base plate, the unlatching of limit switch control intelligent controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220637106 CN202869615U (en) | 2012-11-04 | 2012-11-04 | Device for calibrating gas tightness of gas meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220637106 CN202869615U (en) | 2012-11-04 | 2012-11-04 | Device for calibrating gas tightness of gas meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202869615U true CN202869615U (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220637106 Expired - Fee Related CN202869615U (en) | 2012-11-04 | 2012-11-04 | Device for calibrating gas tightness of gas meters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202869615U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198018A (en) * | 2014-08-11 | 2014-12-10 | 东本电气科技(苏州)有限公司 | Gas meter detection device |
| CN104502039A (en) * | 2015-01-08 | 2015-04-08 | 重庆三美仪表有限责任公司 | Gas tightness detecting method for fuel gas meter |
| CN104864942A (en) * | 2014-02-14 | 2015-08-26 | 济南三宇仪表设备有限公司 | Pneumatic spring meter clamping device |
| CN106872119A (en) * | 2015-12-12 | 2017-06-20 | 中国科学院大连化学物理研究所 | Continue the self checking method of organic pollution device sealing in collection incineration flue gas |
| CN108007536A (en) * | 2018-01-26 | 2018-05-08 | 杭州先锋电子技术股份有限公司 | A kind of valve-embedded condition checkout gear of intelligent gas meter and detection method |
| CN109297654A (en) * | 2018-11-12 | 2019-02-01 | 安徽辰控智能科技有限公司 | A kind of combustible gas intelligent monitor production information management system |
| CN109932028A (en) * | 2019-04-15 | 2019-06-25 | 广州南控自动化设备有限公司 | A kind of detection device of circulating gas turbine meter |
| CN110486629A (en) * | 2019-08-15 | 2019-11-22 | 上海中船三井造船柴油机有限公司 | Air-tightness detection device and method for double fuel host gas pipeline |
| CN111473927A (en) * | 2020-04-10 | 2020-07-31 | 伊藤未来能源设备(上海)有限公司 | Natural gas rapid pressure measurement leak detection device and leak detection method |
-
2012
- 2012-11-04 CN CN 201220637106 patent/CN202869615U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864942A (en) * | 2014-02-14 | 2015-08-26 | 济南三宇仪表设备有限公司 | Pneumatic spring meter clamping device |
| CN104198018A (en) * | 2014-08-11 | 2014-12-10 | 东本电气科技(苏州)有限公司 | Gas meter detection device |
| CN104502039A (en) * | 2015-01-08 | 2015-04-08 | 重庆三美仪表有限责任公司 | Gas tightness detecting method for fuel gas meter |
| CN106872119A (en) * | 2015-12-12 | 2017-06-20 | 中国科学院大连化学物理研究所 | Continue the self checking method of organic pollution device sealing in collection incineration flue gas |
| CN106872119B (en) * | 2015-12-12 | 2018-10-26 | 中国科学院大连化学物理研究所 | Acquire the self checking method for continuing organic pollution device leakproofness in incineration flue gas |
| CN108007536A (en) * | 2018-01-26 | 2018-05-08 | 杭州先锋电子技术股份有限公司 | A kind of valve-embedded condition checkout gear of intelligent gas meter and detection method |
| CN109297654A (en) * | 2018-11-12 | 2019-02-01 | 安徽辰控智能科技有限公司 | A kind of combustible gas intelligent monitor production information management system |
| CN109932028A (en) * | 2019-04-15 | 2019-06-25 | 广州南控自动化设备有限公司 | A kind of detection device of circulating gas turbine meter |
| CN110486629A (en) * | 2019-08-15 | 2019-11-22 | 上海中船三井造船柴油机有限公司 | Air-tightness detection device and method for double fuel host gas pipeline |
| CN111473927A (en) * | 2020-04-10 | 2020-07-31 | 伊藤未来能源设备(上海)有限公司 | Natural gas rapid pressure measurement leak detection device and leak detection method |
| CN111473927B (en) * | 2020-04-10 | 2022-02-22 | 伊藤未来能源设备(上海)有限公司 | Natural gas rapid pressure measurement leak detection device and leak detection method |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130410 Termination date: 20161104 |