Interference heat transport type flow measuring device and measuring method thereof

Abstract

The present invention provides a disturbed heat output type flow measuring device and a measuring method and the present invention relates to a method of measuring the liquid flow in the flow field having a heat transmitting process in the inner of the pipe-case type heat interchanger and the corresponding device. The heat transferring pipe (6) of the measuring device is positioned in the field of the flow to be measured; the pipe-case type heat interchanger hydroeciums (5) are positioned on the two ends of the heat transferring pipe (6); each end of a measuring heat interchanger is provided with a set of disturbed operational servo (1); a flexible piston valve (2) is provided on the head of the valve pole of the disturbed operational servo (1); a temperature measuring sensor which is connected to an industrial personal computer (4) through a temperature measuring module (7) is embedded on the two ends of the inner of the measuring heat interchanger along the axes direction of the piston valve (2), thus, a set of moveable probe head for measuring is formed; the output end of the industrial personal computer (4) controls the movement of the disturbed operational servo (1) by connecting to an electromagnetic valve (10) through a switch control module (8) and a relay group (9) and by connecting the output end of the electromagnetic valve (10) to the disturbed operational servo (1) through a hydraulic tube (13).

Description

Technical field [0001] The invention relates to a method for measuring liquid flow in a flow field with a heat transfer process inside a tube-shell heat exchanger and a corresponding measuring device. It belongs to the technical field of liquid flow measurement. Background technique [0002] At present, most of the measurement technologies for liquid flow have strict requirements on the flow field shape and environmental conditions. For example, a long straight pipe section is required before and after the measurement point. Many engineering occasions simply cannot meet this requirement. For example, the most widely used differential pressure flowmeter and turbine flowmeter are based on the stability of the measured flow field. The potential energy field and velocity field are measured on the basis of differential pressure, average velocity and other parameters, so as to obtain the flow velocity and flow rate. . Therefore, it has very high requirements for the straight pipe secti...

AI Technical Summary

Problems solved by technology

But its disadvantage is that when the heat transfer intensity of the flow field is high, the power applied by the circuit is very large, so it is generally not suitable for the measurement of large flow rate liquids, only suitable for gas flow measurement

[0007] It can be seen that there are some limitations in the above-mentioned various flow measurement techniques, and they cannot be used in the measurement occasions introduced by the inventor.

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