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Valve control air Roots flowmeter and valve control air Roots flow metering box comprising same

A waist wheel flowmeter and gas control technology, applied in volume measurement, liquid/fluid solid measurement, flow control using electrical devices, etc., can solve potential safety hazards, inability to realize wireless remote transmission control, and inability to automatically close the gas path and other issues, so as to achieve the effect of not being easy to be damaged by human beings, improving reliability and safety, and having a compact overall structure

Active Publication Date: 2010-01-27
上海埃科燃气测控设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings: first, the valve is an external manual structure, which cannot realize wireless remote control; second, it cannot automatically close the gas circuit under abnormal conditions, posing safety hazards

Method used

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  • Valve control air Roots flowmeter and valve control air Roots flow metering box comprising same
  • Valve control air Roots flowmeter and valve control air Roots flow metering box comprising same
  • Valve control air Roots flowmeter and valve control air Roots flow metering box comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: with reference to attached figure 1 . A valve-controlled gas waist flowmeter, which includes a gas waist flowmeter 5, the gas waist flowmeter 5 has a built-in valve 6 and is used to control the flow rate of the gas waist flowmeter 5, that is, the gas waist flowmeter 5 A stepping control valve 6 is installed at the entrance of the wheel flowmeter 5, and the data line for controlling the stepping valve 6 is drawn from the upper end cover of the gas waist wheel flowmeter 5. The stepping valve 6 is designed to be opened when powered and automatically closed when the power is off. The gas waist wheel flowmeter can be replaced by a gas turbine flowmeter. The valve 6 is a stepping motor control valve and is controlled by a controller through a control line 13 to control its flow rate and its opening and closing.

Embodiment 2

[0013] Embodiment 2: with reference to attached figure 2 and 3 . A wireless remote valve-controlled gas waist flow metering box composed of a valve-controlled gas waist flow meter, which includes a box body, an air inlet pipe connected to the inlet of filter 1, and an outlet of filter 1 connected to the gas waist flow meter through connecting pipe 4 5 inlet is connected, the outlet of gas waist wheel flow meter 5 is connected with the inlet of the outlet pipe, and the pressure gauge 2 is installed on the connecting pipe 4, the gas waist wheel flow meter 5 passes the flow data to the controller through the data line, and the gas waist wheel flow rate The meter 5 has a built-in valve 6 for controlling the flow rate of the gas waist wheel flowmeter. The valve 6 is connected to the signal output end of the controller 10 through a data line and the flow rate of the valve 6 is controlled by the controller to be closed or opened. The gas leakage alarm 8 is built in the box and is ...

Embodiment 4

[0014] Embodiment 4: The control method of the wireless remote transmission valve-controlled gas waist wheel flow meter box composed of valve-controlled gas waist wheel flowmeter, which includes IC card identification, flow data collection and processing, (1) when the gas probe detects When the combustible gas concentration exceeds the set value, the controller instructs the valve 6 in the valve-controlled waist wheel flowmeter to close directly through the data line; when the combustible gas concentration detected by the gas probe is lower than the set value, the controller instructs through the data line The valve 6 in the valve-controlled waist wheel flowmeter is opened, but when the combustible gas concentration detected by the gas probe exceeds the set value again, the controller instructs the valve 6 in the valve-controlled waist wheel flowmeter to close directly and lock Close the valve 6 until the operator checks and resets the valve 6 in the valve-controlled gas waist ...

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Abstract

The invention relates to a valve control air Roots flowmeter with a built-in valve and a valve control air Roots flow metering box comprising the valve control air Roots flowmeter. The valve control air Roots flow metering box comprises a box body, wherein an air inlet pipe is communicated with an inlet of a filter; an outlet of the filter is communicated with an inlet of the air Roots flowmeter by a connecting pipe; an outlet of the air Roots flowmeter is communicated with an inlet of an air outlet pipe; a pressure gage is installed on the connecting pipe, and the air Roots flowmeter is connected with a controller by flow data through a data line; a valve for controlling the flow of the air Roots flowmeter is arranged in the air Roots flowmeter; and the valve is connected with an output end of a signal of the controller by the data line and controls the flow, the opening and the closing of the valve by the controller. The invention has the advantages that the design of the built-in valve of the air Roots flowmeter has compact integral structure, is difficult to destroy by persons and has good control effect; the wireless remote transfer control is realized, and the reliability and the safety of the metering of a gas metering box are greatly improved.

Description

technical field [0001] The invention relates to a valve-controlled gas waist wheel flow meter with a built-in valve in the flow meter and a valve-controlled gas waist wheel flow measurement box formed by the valve, which belongs to the field of flow meter and flow meter control box manufacturing. Background technique [0002] All of the applicant's authorized announcement number CN100478653C, the name "Roots gas flowmeter metering box", the filter gas outlet located in the box and the Roots meter inlet are connected through connecting pipes, the filter inlet and the Roots meter The air outlet is respectively communicated with the air inlet of the filter and the air outlet of the Roots meter through the valve, and the interface of the valve inlet and outlet is located outside the box. Its shortcomings: first, the valve is an external manual structure, which cannot realize wireless remote control; second, it cannot automatically close the gas circuit under abnormal conditions,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F11/00G01F1/32G05D7/06G07F15/00
Inventor 赵建新卢小林
Owner 上海埃科燃气测控设备有限公司
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