CN104977057B - Gas discharge compensator and its application method - Google Patents
Gas discharge compensator and its application method Download PDFInfo
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- CN104977057B CN104977057B CN201410131253.2A CN201410131253A CN104977057B CN 104977057 B CN104977057 B CN 104977057B CN 201410131253 A CN201410131253 A CN 201410131253A CN 104977057 B CN104977057 B CN 104977057B
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- gas
- natural gas
- flowmeter
- motor
- storage packet
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Abstract
Gas discharge compensator and its application method, it is related to natural gas register instrument production field, it is connect with PLC industrial personal computer signal including the PLC industrial personal computer for connecting pressure detector with gas storage packet, being connect with pressure detector signal and the solenoid valve, motor-driven valve, the natural gas flowmeter that are installed on gas pipeline, the solenoid valve, motor-driven valve.Natural gas flowmeter measurement accuracy is substantially increased, reading problems of too is effectively prevent.
Description
Technical field
The present invention relates to a kind of gas discharge of natural gas register instrument production field more particularly to linear adjustable benefits
Repay device.
Background technique
It is in constant pressure, constant flow, constant temperature, length in the prior art since natural gas flowmeter is in calibrational capacity precision
The flow of time measurement, and in practical applications, might have many natural gas facilities can using as pulse controlled mode come
Control.Pulse control room is that pulse width is adjusted according to temperature control signals, and when formation opens, when a process closing, this and
Natural gas flowmeter mismatches very much.For the rotor of natural gas flowmeter under the premise of running at high speed, pulse control is natural
Air valve cutting, but under no traffic conditions, flowmeter can also remain in operation under the action of inertia, make natural gas flowmeter
Reading is greater than actual use flow, more up to 1.7 times.Cause deviation of reading larger, customers' responsiveness is less desirable.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of linear adjustable natural gas flows, effectively prevent pulse
Flowmeter, which remains in operation, after the valve cutting that control generates causes reading to have the gas discharge compensator of large error and its make
Use method.
The present invention is in order to solve the above technical problems, provide following technical scheme: a kind of gas discharge compensator makes
With method, the gas discharge compensator includes connecting pressure detector with gas storage packet, connecting with pressure detector signal
PLC industrial personal computer and the solenoid valve being installed on gas pipeline, motor-driven valve, natural gas flowmeter, the solenoid valve, motor-driven valve are equal
It is connect with PLC industrial personal computer signal, it is characterised in that the following steps are included: gas storage packet is set when gas equipment starts with gas
Pressure value, gas storage packet play buffer function between natural gas gas equipment and natural gas flowmeter；Gas storage packet pressure signal becomes
Change and PLC industrial personal computer is transferred to by pressure detector, 4~20mA current signal is exported by PLC industrial personal computer and controls day to motor-driven valve
Right throughput, when gas storage packet pressure is close to setting value, motor-driven valve can auto linear open or close；When motor-driven valve is opened to greatly
Solenoid valve is opened when natural gas flowmeter minimum value, and flowmeter is started to work, when being greater than natural gas maximum stream flow, solenoid valve
It closes；During gas storage packet step-less adjustment, from small to large, from big to small, linear control action makes day to electronic valve opening
Right air-flow meter and motor-driven valve play synchronous effect, to reduce the effect of inertia of natural gas flowmeter rotor, it is ensured that flowmeter meter
It measures more accurate.
Beneficial effects of the present invention: the present invention substantially increases natural gas flowmeter measurement accuracy, effectively prevent reading
Big problem.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
Gas discharge compensator, including pressure detector 002 and 002 signal of pressure detector are connect with gas storage packet 001
The PLC industrial personal computer 003 of connection and the solenoid valve 005 being installed on gas pipeline 004, motor-driven valve 006, natural gas flowmeter
007, the solenoid valve 005, motor-driven valve 006 are connect with 003 signal of PLC industrial personal computer.
A kind of gas discharge compensator application method, comprising the following steps: when gas equipment starts with gas, gas storage packet
001 sets pressure value；Pressure signal is transferred to PLC industrial personal computer by pressure detector 002 by 001 pressure change of gas storage packet
003,4~20mA current signal is exported by PLC and controls gas discharge to motor-driven valve 006, when most greater than natural gas flowmeter 007
Solenoid valve 005 is opened when small value, and flowmeter 007 is started to work, when 001 pressure of gas storage packet is close to setting value, 006 meeting of motor-driven valve
Auto linear opens or closes, and natural gas flowmeter 007 is made to obtain linear regulation, to reduce the inertia of flowmeter 007, it is ensured that stream
The metering of meter 007 is more accurate.
Illustrate: natural gas flowmeter 007 is less than minimum value flowmeter in detection flows Shi Douyou maximum value and minimum value
007 does not just measure, and is greater than the reading of maximum value flowmeter 007 also inaccuracy according to the pressure that gas storage packet 001 is set and works as motor-driven valve
006 when being opened to greater than flowmeter minimum value, and solenoid valve 005 automatically opens, according to consumption adjusting size.When greater than natural gas
When maximum stream flow, electromagnetic valve for natural gas 005 is closed.
The effect of step-less adjustment: 001 step-less adjustment of gas storage packet.It is played in adjustment process from small to large, from big to small, line
Property control action.Natural gas flowmeter 007 and motor-driven valve 006 is set to play synchronous effect, to reduce the inertia of 007 rotor of flowmeter
Effect.
The effect of gas storage packet 001: natural gas gas equipment and flowmeter 007 play buffer function.
Claims (1)
1. a kind of application method of gas discharge compensator, the gas discharge compensator include connecting pressure with gas storage packet
Detector, the PLC industrial personal computer being connect with pressure detector signal and the solenoid valve, motor-driven valve, the day that are installed on gas pipeline
Right air-flow meter, the solenoid valve, motor-driven valve are connect with PLC industrial personal computer signal, it is characterised in that the following steps are included: when using
When gas equipment is started with gas, gas storage packet sets pressure value, and gas storage packet is between natural gas gas equipment and natural gas flowmeter
Play buffer function；The variation of gas storage packet pressure signal is transferred to PLC industrial personal computer by pressure detector, by PLC industrial personal computer output 4
~20mA current signal gives electric valve control preparing natural gas flow, and when gas storage packet pressure is close to setting value, motor-driven valve can transfer matic
Property opens or closes；When motor-driven valve is opened to greater than natural gas flowmeter minimum value, solenoid valve is opened, and flowmeter is started to work,
When being greater than natural gas maximum stream flow, solenoid valve is closed；During gas storage packet step-less adjustment, electronic valve opening from it is small to
Greatly, from big to small, linear control action makes natural gas flowmeter and motor-driven valve play synchronous effect, to reduce natural gas flow
The effect of inertia of meter rotor, it is ensured that flowmeter metering is more accurate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131253.2A CN104977057B (en) | 2014-04-03 | 2014-04-03 | Gas discharge compensator and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131253.2A CN104977057B (en) | 2014-04-03 | 2014-04-03 | Gas discharge compensator and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104977057A CN104977057A (en) | 2015-10-14 |
| CN104977057B true CN104977057B (en) | 2019-11-15 |
Family
ID=54273789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410131253.2A Active CN104977057B (en) | 2014-04-03 | 2014-04-03 | Gas discharge compensator and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104977057B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112950855A (en) * | 2021-01-27 | 2021-06-11 | 成都中科慧源科技有限公司 | Method for realizing safe gas utilization of Internet of things gas meter by limiting gas utilization at constant flow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01244769A (en) * | 1988-03-28 | 1989-09-29 | Fuji Electric Co Ltd | Gas accident preventing device |
| CN102600759A (en) * | 2012-03-23 | 2012-07-25 | 刘树伟 | Nitrogen/chlorine (argon/chlorine) mixing and proportioning system and operation method thereof |
| CN103175589A (en) * | 2011-12-26 | 2013-06-26 | 新奥科技发展有限公司 | Measuring meter calibration device and method |
| CN203490542U (en) * | 2013-10-25 | 2014-03-19 | 天津市迅尔自控设备制造有限公司 | High-precision flow control equipment |
| CN203811220U (en) * | 2014-04-03 | 2014-09-03 | 宜兴市华宇窑炉制造有限公司 | Natural gas flow compensator |
-
2014
- 2014-04-03 CN CN201410131253.2A patent/CN104977057B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01244769A (en) * | 1988-03-28 | 1989-09-29 | Fuji Electric Co Ltd | Gas accident preventing device |
| CN103175589A (en) * | 2011-12-26 | 2013-06-26 | 新奥科技发展有限公司 | Measuring meter calibration device and method |
| CN102600759A (en) * | 2012-03-23 | 2012-07-25 | 刘树伟 | Nitrogen/chlorine (argon/chlorine) mixing and proportioning system and operation method thereof |
| CN203490542U (en) * | 2013-10-25 | 2014-03-19 | 天津市迅尔自控设备制造有限公司 | High-precision flow control equipment |
| CN203811220U (en) * | 2014-04-03 | 2014-09-03 | 宜兴市华宇窑炉制造有限公司 | Natural gas flow compensator |
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| Publication number | Publication date |
|---|---|
| CN104977057A (en) | 2015-10-14 |
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