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Integrated intelligent gas flow meter with double flow measuring heads

A technology of gas flow meter and flow measurement, which is applied in the field of flow meters, can solve the problems of narrow detection range of gas flow meters, achieve optimal selection, solve incompatibility, and stabilize output

Active Publication Date: 2012-10-31
CHONGQING MAS SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the main purpose of the present invention is to solve the problem of the narrow detection range of the current gas flowmeter, and provide an integrated intelligent gas flowmeter with dual flow measuring heads with a wide detection range

Method used

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] like figure 1 and figure 2 As shown, the integrated smart gas flowmeter with dual flow measuring heads of the present invention includes a measuring tube 1, flanges 2 are respectively arranged at both ends of the measuring tube 1, and the measuring tube 1 is used to provide a flow channel for the measured fluid. During installation, the measuring tube 1 is communicated with the measured pipelines at both ends through the flanges 2 at both ends. In the present invention, the diameter of the measuring tube 1 is represented by D; The measuring head 3 is provided with a V-shaped cone flow measuring head 4 at the rear end of the inner cavity of the measuring tube 1, and the distance between the ultrasonic vortex flow measuring head 3 and the V-shaped cone flow measuring head 4 is 0.8D, 0.9D , D, 1.1D or 1.2D, the purpose of controlling the...

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Abstract

The invention provides an integrated intelligent gas flow meter with double flow measuring heads. The integrated intelligent gas flow meter comprises a measuring tube, wherein flanges are respectively arranged at two ends of the measuring tube, an ultrasonic vortex flow measuring head and a V-shaped tapered flow measuring head are arranged in the measuring tube, a flow control and display unit isalso arranged at the outer side of the measuring tube, and is composed of a measurement switching unit and a flow measuring and controlling unit, the measurement switching unit is connected with the flow measuring and controlling unit to form a closed loop, detecting signals of the ultrasonic vortex flow measuring head and the V-shaped tapered flow measuring head are input to the flow measuring and controlling unit after being switched and controlled by the measurement switching unit, and the flow measuring and controlling unit is used for sending a switching control signal to the measurementswitching unit according to the detecting signals. The flow meter provided by the invention has the advantages of a wide flow detecting range between 0.3m / s and 30m / s, smaller interference for the signals and obviously increased measurement accuracy.

Description

[0001] technical field [0002] The invention relates to a flow meter for measuring fluid flow, in particular to a multifunctional and wide range integrated intelligent gas flow meter with double flow measuring heads. Background technique [0003] In the coal industry, gas flow measurement is a technically difficult task, especially in underground mines. Due to the low pressure of gas, most of the time it is in a negative pressure state, and the gas flow varies in a large range. Therefore, the flowmeter not only requires high sensitivity and stable low flow rate characteristics, but also requires a wide range and low pressure loss; and because the gas also contains a certain proportion of water and dust, so It is also required that the flowmeter has high reliability and good adaptability to the scene. [0004] At present, the gas flow meters used in various industries to measure natural gas, oxygen, nitrogen, compressed air, etc., usually can only measure a certain fixed rang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F7/00G01F1/50
Inventor 叶立胜全太锋孙申厚刘建华杨志勇
Owner CHONGQING MAS SCI & TECH CO LTD
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