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Natural gas flow compensator and its application method

A technology of flow compensation and natural gas, applied in the direction of liquid/fluid solid measurement, instruments, measuring devices, etc., can solve the problems of reading deviation, unsatisfactory customer feedback, etc., and achieve the effect of improving measurement accuracy and preventing excessive readings

Active Publication Date: 2015-10-14
宜兴市华宇窑炉制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Larger deviations in readings, and unsatisfactory customer feedback

Method used

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  • Natural gas flow compensator and its application method

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Embodiment Construction

[0008] Natural gas flow compensator, including the pressure detector 002 connected with the gas storage bag 001, the PLC industrial computer 003 connected with the signal of the pressure detector 002, the solenoid valve 005, the electric valve 006, and the natural gas flowmeter 007 installed on the gas pipeline 004 , the solenoid valve 005 and the electric valve 006 are connected to the PLC industrial computer 003 for signals.

[0009] A method for using a natural gas flow compensator, comprising the following steps: when the gas consumption equipment starts to use gas, the gas storage bag 001 sets the pressure value; the pressure change of the gas storage bag 001 transmits the pressure signal to the PLC industrial control through the pressure detector 002 Machine 003, the PLC outputs a 4-20mA current signal to the electric valve 006 to control the flow of natural gas. When it is greater than the minimum value of the natural gas flow meter 007, the solenoid valve 005 opens, and...

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Abstract

The present invention provides a natural gas flow compensator and its application method which relates to the manufacturing field of natural gas recorders. The compensator comprises a pressure detector in connection with a gas bag, a PLC engineering control machine in signal connection with the pressure detector, a solenoid valve, a motorized valve and a natural gas flow meter. The solenoid valve, the motorized valve and the natural gas flow meter are mounted on a gas pipeline and they are all in signal connection with the PLC engineering control machine. The measuring accuracy of the natural gas flow meter is greatly increased and the reading is prevented from being too great.

Description

technical field [0001] The invention relates to the field of making natural gas recording instruments, in particular to a linearly adjustable natural gas flow compensator. Background technique [0002] In the existing technology, when the natural gas flowmeter calibrates the flow accuracy, the flow is measured at constant pressure, constant flow, constant temperature, and long time. In practical applications, many natural gas equipment may adopt pulse control methods. to control. The pulse control chamber adjusts the pulse width according to the temperature control signal to form a process of opening and closing, which is very inconsistent with the natural gas flowmeter. Under the premise of the rotor of the natural gas flowmeter running at high speed, the pulse control has cut off the natural gas valve, but in the case of no flow, the flowmeter can continue to run under the action of inertia, so that the reading of the natural gas flowmeter is greater than the actual flow ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/00
Inventor 于泽华
Owner 宜兴市华宇窑炉制造有限公司