CN206348118U - One kind detection gas meter valve sealing device - Google Patents
One kind detection gas meter valve sealing device Download PDFInfo
- Publication number
- CN206348118U CN206348118U CN201621466510.9U CN201621466510U CN206348118U CN 206348118 U CN206348118 U CN 206348118U CN 201621466510 U CN201621466510 U CN 201621466510U CN 206348118 U CN206348118 U CN 206348118U
- Authority
- CN
- China
- Prior art keywords
- flow
- meter
- gas meter
- valve
- pressure
- 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.)
- Active
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides a kind of detection gas meter valve sealing device, is related to technical field of measurement and test.It includes pressure-regulating valve, thermal flowmeter and flow control valve, pressure-regulating valve input is connected with source of the gas, pressure-regulating valve output end is connected with tested gas meter, flow meter, tested gas meter, flow meter output end is connected with the thermal flowmeter input, thermal flowmeter output end is connected with the flow control valve, flow control valve output end and atmosphere.The utility model solves and detects gas meter valve sealing under nonstandard condition in the prior art, and testing result is without reference；Dynamic detection does not account for flow kinetic energy factor, the insecure technical problem of testing result.The utility model has the beneficial effect that：It is equal to the actual operating state of gas meter, flow meter completely, testing result accurately and reliably, meets European Union EN16314：2013 standards.A kind of standard test maximum stream flow and leakage flow, cost of investment are few.Testing result is shown as standard condition value, and testing result has reference.
Description
Technical field
The utility model is related to technical field of measurement and test, and Gas meter valve is detected with big flow under mark condition more particularly, to one kind
Door sealing device.
Background technology
Urban construction standard CJ/T112-2008《IC-card diaphragm gas meter》Sealing proposition to gas meter valve is as follows
It is required that：" when valve is closed, admission pressure is（4.5~5.5）During kPa, the permission leakage rate of valve not should be greater than
0.55L/h." detect that gas meter valve sealing is so done mostly at present：Tested gas meter valve is closed, is then passed to
The gas of 4.5~5.5kPa pressure, observes pressure variety, judges whether tested gas meter valve leaks.This test is quiet
State, there is gap with the dynamic of pass valve in gas meter, flow meter actual use.Chinese patent Authorization Notice No. CN203443752U, authorizes public
Accuse at 19 on day 2014 year 2 month, the utility model patent of entitled " a kind of dynamic detection gas meter valve sealing device ", it is open
A kind of detection gas meter valve sealing improves device.It includes movable type P-V chis, U types liquid level manometer, pressure regulation
It is valve, air switch, pressure gauge, cyclelog, annular seal space block, ceramic wiring terminal, seal cavity support, seal cavity, fast
Clamping head and threeway distributor, one end of air switch by pressure-regulating valve external gas source, the other end by pressure gauge with it is close
Chamber block connection is sealed, seal cavity head coordinates with annular seal space block screw thread, and valve rack and ceramics are housed in annular seal space block
Binding post, ceramic wiring terminal is by the externally connected cyclelog of gold plated copper pin, seal cavity support bearing seal cavity,
Seal cavity afterbody passes through ball valve and glue by one end UNICOM of Quick-mounting clamp head and threeway distributor, the other end of threeway distributor
Pipe is connected with one end of U type liquid level manometers, and the U type liquid level manometers other end is opened, and portable P-V chis are disposed side by side on U
Type liquid level manometer side.According to bernoulli principle, when gas meter, flow meter inner valve needs to close, it will overcome binomial resistance, the
One is pressure potential, and second is kinetic energy.Kinetic energy is relevant with flow, and flow is bigger, and kinetic energy is bigger.Gas meter, flow meter has maximum stream flow, so
Valve tightness should be detected in maximum stream flow ShiShimonoseki valve.The device considers dynamic leak test, but flow is not claimed.
Flow is different during actual pass valve, and kinetic energy is also different.The result of the other device to test can change because of the change of test environment, examine
Survey result and lack accuracy, no reference.
Utility model content
In order to solve to detect gas meter valve sealing under nonstandard condition in the prior art, testing result lacks accuracy,
Without reference；Dynamic detection does not account for flow kinetic energy factor, and the insecure technical problem of testing result, the utility model is provided
Valve detection gas meter valve sealing device is closed during one kind mark condition maximum stream flow, testing result is reached not only accurately and reliably, and
Purpose with comparativity.
The technical solution of the utility model is：One kind detection gas meter valve sealing device, it include pressure-regulating valve,
Thermal flowmeter and flow control valve, pressure-regulating valve input are connected with source of the gas, and pressure-regulating valve output end is connected with tested
Gas meter, flow meter, tested gas meter, flow meter output end is connected with the thermal flowmeter input, thermal flowmeter output end and the flow
Regulating valve is connected, flow control valve output end and atmosphere.Pass through the adjustment to pressure-regulating valve and flow control valve so that
The tested gas meter valve of closing after maximum, stabilization is reached by being detected the pressure and flow of gas meter, flow meter, now hot type is read
Instantaneous delivery on flowmeter, is exactly the valve leakage automatic inspection of tested gas meter, flow meter.Simple to operate, detection efficiency is high.Detection dress
Put the pressure potential for not only considering flow but also taken into account the pressure kinetic energy of flow, testing result is accurately and reliably.With thermal flowmeter
For standard, testing result is shown as standard condition value, and testing result has reference.A kind of standard not only measured maximum stream flow but also
Dosing leak flow, investment reduction cost.
Preferably, tested gas meter, flow meter input front end is connected with pressure gauge；Monitoring pressure-regulating valve is exported to tested combustion gas
Flow-meter pressure reaches maximum, it is ensured that testing result reliability.
Preferably, heat type flow quantity is calculated as thermal type gas quality flow meter.The tested combustion gas flow-meter of monitoring reaches maximum,
Ensure testing result reliability；Based on its principle without temperature pressure compensation, it is shown as marking condition flow value, it is simple to operate；
It can be demarcated with bell-jar gas flow standard device, use cost is low.
Compared with prior art, the beneficial effects of the utility model are：Tested gas meter, flow meter is closed after big flow ventilation is stable
Valve, the completely equivalent actual operating state of gas meter, flow meter, meet European Union EN16314：2013《Gas meter, flow meter additional function》Standard pair
In the test request of gas meter valve.A kind of standard meets the test of different flow, i.e. maximum stream flow and leakage flow, saves
Cost of investment.Standard can be demarcated with bell-jar gas flow standard device, using equipment is few, connection is convenient, test is directly perceived, behaviour
Make simple, use cost is low.Detection means had not only considered the pressure potential of flow but also had taken into account the pressure kinetic energy of flow, detection knot
Fruit is accurately and reliably.Testing result is shown as standard condition value, and testing result has reference.
Brief description of the drawings
Accompanying drawing 1 is the new connection diagram of this practicality.
In figure：1- pressure-regulating valves；2- pressure gauges；3- is detected gas meter, flow meter；4- thermal flowmeters；5- flow control valves.
Embodiment
Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment 1：
As shown in figure 1, a kind of detection gas meter valve sealing device.It includes pressure-regulating valve 1, pressure gauge 2, is detected
Gas meter, flow meter 3, thermal flowmeter 4 and flow control valve 5.The input of pressure-regulating valve 1 is connected with source of the gas（Do not show in figure）.Source of the gas is
The air that compression pump is provided.The output end of pressure-regulating valve 1 is connected with the tested input of gas meter, flow meter 3.The tested input front end of gas meter, flow meter 3
It is connected with pressure gauge 2.Connected between pressure-regulating valve 1 and the input of tested gas meter, flow meter 3 by connecting tube.Connecting tube is close to tested
The input of gas meter, flow meter 3 is connected with threeway.Threeway first port connection pressure-regulating valve 1 output end, second port connection pressure gauge
2nd, the tested input of gas meter, flow meter 3 of the 3rd port connection.The tested output end of gas meter, flow meter 3 is connected with the input of thermal flowmeter 4.Hot type
Flowmeter 4 is thermal type gas quality flow meter.The output end of thermal flowmeter 4 is connected with the input of flow control valve 5.Flow-rate adjustment
The output end of valve 5 is directly arranged to air.
By source of the gas, pressure-regulating valve 1, pressure gauge 2, tested gas meter, flow meter 3, thermal flowmeter 4, flow control valve 5, connect successively
Connect.Check sealing.Open the tested valve of gas meter, flow meter 3, open source of the gas.Adjust pressure-regulating valve 1 and flow control valve 5 so that
Gas pressure and flow reach the maximum rating of tested gas meter, flow meter 3 in device pipeline.Pressure gauge 2 and thermal flowmeter 4 are observed,
Treat that gas is stable in device pipeline, close the tested valve of gas meter, flow meter 3.The flow that thermal flowmeter 4 is shown is recorded, is as marked under condition
The leakage rate of the tested valve of gas meter, flow meter 3.Judge whether the tested valve tightness of gas meter, flow meter 3 is qualified according to the leakage rate.
Claims (3)
1. one kind detection gas meter valve sealing device, it includes pressure-regulating valve（1）, thermal flowmeter（4）Adjusted with flow
Save valve（5）, it is characterised in that：The pressure-regulating valve（1）Input is connected with source of the gas, pressure-regulating valve（1）Output end is connected
There is tested gas meter, flow meter（3）, it is detected gas meter, flow meter（3）Output end and the thermal flowmeter（4）Input is connected, thermal flowmeter
（4）Output end and the flow control valve（5）Connection, flow control valve（5）Output end and atmosphere.
2. a kind of detection gas meter valve sealing device according to claim 1, it is characterised in that：The tested combustion gas
Table（3）Input front end is connected with pressure gauge（2）.
3. a kind of detection gas meter valve sealing device according to claim 1, it is characterised in that：The heat type flow quantity
Meter（4）For thermal type gas quality flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466510.9U CN206348118U (en) | 2016-12-29 | 2016-12-29 | One kind detection gas meter valve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466510.9U CN206348118U (en) | 2016-12-29 | 2016-12-29 | One kind detection gas meter valve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206348118U true CN206348118U (en) | 2017-07-21 |
Family
ID=59319568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621466510.9U Active CN206348118U (en) | 2016-12-29 | 2016-12-29 | One kind detection gas meter valve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206348118U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782505A (en) * | 2017-11-24 | 2018-03-09 | 中山市铧禧电子科技有限公司 | A kind of proportioning valve device for detecting sealability |
| 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 |
| CN110095239A (en) * | 2019-05-29 | 2019-08-06 | 深圳市宝利联合科技有限公司 | Refrigerator refrigerant non-return valve air-tightness detection device and detection method |
| CN113050522A (en) * | 2021-03-31 | 2021-06-29 | 广州燃气集团有限公司 | Valve state detection method based on safety monitoring function Internet of things intelligent gas meter |
-
2016
- 2016-12-29 CN CN201621466510.9U patent/CN206348118U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782505A (en) * | 2017-11-24 | 2018-03-09 | 中山市铧禧电子科技有限公司 | A kind of proportioning valve device for detecting sealability |
| 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 |
| CN110095239A (en) * | 2019-05-29 | 2019-08-06 | 深圳市宝利联合科技有限公司 | Refrigerator refrigerant non-return valve air-tightness detection device and detection method |
| CN113050522A (en) * | 2021-03-31 | 2021-06-29 | 广州燃气集团有限公司 | Valve state detection method based on safety monitoring function Internet of things intelligent gas meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206348118U (en) | One kind detection gas meter valve sealing device | |
| CN109238936B (en) | Compensation type ventilation rate standard rod calibration device and calibration method thereof | |
| CN203745051U (en) | Two-position one-way reversing valve type pVTt-method gas flow device | |
| CN105004479B (en) | Ion gauge and mass spectrograph calibrating installation and method based on normal pressure measurement | |
| CN103837214A (en) | Combined container type gas flow detection device by pVTt method | |
| CN103837215B (en) | Commutation valve type p.V.T.t method gas flow meter | |
| CN209014432U (en) | A kind of compensation ventilation rate master bar calibrating installation | |
| CN110987324A (en) | Fuel cell air tightness testing device and testing method | |
| CN106768723A (en) | Air flue check valve flow and device for detecting sealability | |
| CN202748203U (en) | Automobile air inlet system component integrated testing apparatus | |
| CN203249743U (en) | Gas tightness detection device | |
| CN110207975A (en) | A kind of adjusting of safety valve pressure and package seal checker and method | |
| CN110411676B (en) | Valve leakage detection device | |
| CN110657982B (en) | Breather valve performance test system | |
| CN209014434U (en) | Check device during a kind of single step ventilation rate master bar | |
| CN106556430A (en) | A kind of gas Actual flow test system and method with self-calibration function | |
| CN217006326U (en) | Pressure switch medium resistance testing device | |
| CN212621440U (en) | High-temperature valve closed type detection test device based on gas heating system | |
| CN203443752U (en) | Device for dynamically detecting the sealing of gas meter valve | |
| CN210108640U (en) | Water heater gas tightness detection device | |
| CN104677572A (en) | Proton exchange membrane fuel cell bipolar plate leak detection method and device | |
| CN211262580U (en) | Overpressure testing device for flow pressure gauge | |
| CN216483758U (en) | Gas safety valve detection device | |
| CN208579154U (en) | Experimental device for measuring leakage characteristics of gas pipeline | |
| CN202216731U (en) | Superconducting magnet liquid helium volatilization rate measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |