High-temperature medium online monitoring flowmeter

Abstract

The invention discloses a high-temperature medium online monitoring flowmeter. The high-temperature medium online monitoring flowmeter comprises a meter head and a casing; a connecting sleeve is arranged under the meter head through threads; a cantilever beam sensor is arranged in the connecting sleeve, and the cantilever beam sensor is electrically connected to the meter head; the cantilever beamsensor can convert the displacement of the target rod into an electrical signal and transmit the electrical signal to the meter head. The invention has the advantages that: heat sinks arranged on outer sides of a connecting seat can dissipate heat on the connecting seat outward in time, thereby reducing the temperature of a medium in the connecting seat; a heat insulating connecting member arranged on an upper end of the target rod can isolate the heat and prevent the heat from being conducted upward, thereby ensuring the environment temperature required by normal working of the cantilever beam sensor and improving the stability of the detected data; a thin plate-shaped deformation portion can improve the sticking firmness of strain sheets, can be used to detect micro deformation, and canincrease the applicable range of the flowmeter.

Description

technical field [0001] The invention relates to the field of target-type online flowmeters, in particular to an online monitoring flowmeter for high-temperature medium. Background technique [0002] The detection of the target-type online flowmeter is through the impact of the measured medium on the target piece when it flows, so that the target piece is displaced, thereby driving the displacement of the target rod to change, and then the displacement of the target rod is measured by the strain gauge in the sensor. A detection device that converts and outputs an electrical signal. [0003] The applicant found that there are at least the following technical problems in the prior art: the flow sensors in the existing target flowmeters are all cylindrical, and the strain gauges are difficult to stick firmly on the circular elastic body of the sensor, so it is easy to cause the sensor to detect When creep and temperature drift occur from time to time, when detecting high-temper...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-temperature medium online monitoring flowmeter in order to solve the above problems, so as to solve the problem that the strain gauge on the flow sensor in the prior art is not firmly pasted, resulting in sensor creep or zero point drift. When the medium is detected, the temperature of the medium is likely to affect the detection data of the sensor and other technical problems

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