Gas flow measuring device
A measuring device and gas flow technology, which is applied to the volume/mass flow generated by mechanical effects, the application of thermal effects to detect fluid flow, and the detection of fluid flow by measuring differential pressure. problems, to achieve the effect of convenient maintenance and improved accuracy
Pending Publication Date: 2022-02-15
TIANDI CHANGZHOU AUTOMATION +1
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is: in order to solve the problem that the flowmeter in the prior art needs to be replaced many times according to the environment, which reduces the work efficiency of the staff and easily causes the leakage of gas such as gas in the mine pipeline Problem, the present invention provides a gas flow measurement device, which integrates a differential pressure flow detector and a thermal flow detector into the gas flow measurement device, and uses different flow detectors in different environments through the control of the control module. Therefore, there is no need to replace the gas flow measurement device, which improves the work efficiency of workers, and also avoids the leakage of gas and other gases in the pipeline caused by multiple replacements of the gas flow measurement device
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[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0024] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invent...
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The invention relates to the technical field, and especially relates to a gas flow measuring device. The gas flow measuring device comprises: a control device, wherein the control device comprises a shell and a main circuit board, the main circuit board is installed in a cavity, the main circuit board comprises a control module, a differential pressure detection module and a thermal detection module, and the differential pressure detection module and the thermal detection module are both electrically connected with the control module; and a flow detection assembly comprising a differential pressure flow detector and a thermal flow detector, wherein the differential pressure detection module is electrically connected with the differential pressure flow detector, and the thermal detection module is electrically connected with the thermal flow detector. According to the gas flow measuring device provided by the invention, the differential pressure flow detector and the thermal flow detector are integrated in the gas flow measuring device, different flow detectors are used in different environments, and the gas flow measuring device does not need to be replaced, so that the working efficiency of workers is improved, and leakage of gas such as gas in the pipeline caused by repeated replacement of the gas flow measuring device is avoided.
Description
technical field [0001] The invention relates to the technical field of measuring equipment, in particular to a gas flow measuring device. Background technique [0002] At present, the commonly used measurement principles for gas flow measurement are: differential pressure, thermal, ultrasonic, vortex, etc. The ultrasonic flowmeter adopts the time difference method, uses a pair of ultrasonic transducers to alternately send and receive ultrasonic waves in opposite directions, and measures the flow velocity of the fluid by observing its forward and countercurrent propagation time in the medium, and then calculates the flow rate through the flow velocity, which is an indirect, Non-contact measuring instruments; vortex flowmeters are flowmeters that measure fluid flow in closed pipes based on the Karman vortex principle; differential pressure flowmeters calculate flow by measuring the pressure drop on obstacles inserted in the flow channel; thermal flowmeters Mass flow meters me...
Claims
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IPC IPC(8): G01F1/34G01F1/68
CPCG01F1/34G01F1/68
Inventor 高文平郝叶军王璐蒋志龙纪亚强吴浩然席宇轩程一峰顾仁勇吴文辉刘鹏
Owner TIANDI CHANGZHOU AUTOMATION