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Parallel type flow sensor

A flow sensor and sensor technology, applied in liquid/fluid solid measurement, instruments, measuring devices, etc., can solve the problems of the flow sensor not being able to adjust the angle, the influence of the pipeline sealing performance, the troublesome operation process, etc. , easy-to-use effects

Inactive Publication Date: 2018-06-29
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only wastes manpower, but also affects the sealing performance of the pipeline. Secondly, the operation process is cumbersome, and it is easy to bring unsafe factors.
Secondly, there is no concept of adjusting the depth of immersion in the above-mentioned flow sensor. What it measures is the average flow velocity of the liquid. Naturally, the above-mentioned flow sensor cannot adjust the angle between its own sensing components and the direction of the liquid flow. They are all connected in series. Inside the pipe, all liquids act on the corresponding sensor sensing parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A parallel flow sensor, including a sensor sensitive end assembly and a casing, the casing is cylindrical, and a measurement interface is opened on the wall of the pipeline 5, and the casing is connected to the inner wall of the measurement interface through a gasket 6, and the sensitive end of the sensor is The assembly includes a measuring end and a signal output end, the measuring end passes through the inside of the shell and is inserted into the pipe, and its signal output end is located outside the shell, the measuring end includes a base 2, and the base 2 is divided into Fork structure, the structure is equipped with a strain gauge 3, the outer layer of the strain gauge 3 has an anti-corrosion protective film 1, the base 2 is connected with a signal output cable 4, extending from the signal output end, when measuring the liquid flow rate, the strain gauge 3 The amount of deformation is converted into an electrical signal and input to the processing circuit to obta...

Embodiment 2

[0028] Such as Figure 1-7 As shown, a parallel flow sensor includes a sensor sensitive end assembly and a housing. The housing is cylindrical. The sensor sensitive end assembly is located inside the housing. The housing is connected to the inner wall of the measurement interface of the pipeline 5 through a gasket 6. The sensor The measuring end of the sensitive end assembly is inserted into the pipeline, and the sensor sensitive end assembly includes a base body 2, and one end of the base 2 body is a bifurcated structure, and a strain gauge 3 is installed on the structure, and the outside of the strain gauge 3 There is an anti-corrosion protective film 1 on the layer, and a signal output cable 4 is installed on the other end of the substrate. When measuring the liquid flow rate, the deformation of the strain gauge 3 is converted into an electrical signal and input to the processing circuit to obtain the liquid flow rate. The flow sensor also includes an installation sleeve 8,...

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Abstract

The invention relates to a parallel type flow sensor. The parallel type flow sensor comprises a sensor sensitivity end assembly and a cylindrical shell and is characterized in that the wall of a pipeline is provided with a measuring interface, the shell is connected with the inner wall of the measuring interface through a sealing pad, the sensor sensitive end assembly comprises a measuring end anda signal output end, the measuring end penetrates the shell to be inserted into the pipeline, the signal output end is located outside the shell, the measuring end comprises a matrix of a forked structure, a strain gauge is mounted on the forked structure, the outer layer of the strain gauge is provided with an anti-corrosion protecting layer, and the matrix is connected with a signal output cable; during liquid flow rate measuring, the deformation quantity of the strain gauge is converted into an electric signal which is transmitted into a processing circuit, and accordingly liquid flow ratecan be acquired. The parallel type flow sensor has the advantages that the flow sensor is parallelly connected into the measuring pipeline, and the flow sensor is convenient and efficient, capable ofevidently lowering the technical requirements on operators, capable of effectively protecting the integrity of an original fluid system, simple in structure, convenient to maintain and used and low in cost.

Description

technical field [0001] The invention relates to a parallel liquid flow sensor. Background technique [0002] The flow sensor is a sensor that measures how much fluid flows through a certain cross-section within a certain period of time. According to its specific measurement principle, the current flow sensors can be divided into vane type, measuring core type, hot wire type, Hot film type, Karman vortex flow sensor, etc., according to the different fluids they measure, there are gas type, liquid type, gas-liquid mixed type, and special fluid measurement. At present, flow sensors are widely used in contemporary industrial systems, and have had a huge impact on contemporary industries and various fields that rely on liquid transmission and control. [0003] Various forms of flow sensors currently exist. According to the working principle of their design, the sensors must be connected in series to the pipeline through which the fluid flows. According to the principles of molec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/18
CPCG01F15/185
Inventor 李加启丛大成刘超王坤
Owner HARBIN INST OF TECH