Differential pressure type high sensitivity liquid level flow measuring device

Abstract

The invention belongs to the technical field of liquid level flow on-line monitoring devices, and particularly relates to a differential pressure type high sensitivity liquid level flow measuring device. The problems that an existing mechanical liquid level flow speed measuring instrument cannot adapt to the special environment where a field monitoring device is placed and cannot work for a long time are solved. The differential pressure type high sensitivity liquid level flow measuring device comprises a pressure probe immersed under the liquid level, and further comprises a reference pressure compensation module, a flow speed conversion module and a signal amplifying processing module, wherein the reference pressure compensation module is far away from the liquid level, and the pressure probe is internally provided with a total pressure measuring module and a static pressure module. The static pressure measuring module is connected with the signal amplifying processing module through the reference pressure compensation module, and the reference pressure compensation module is provided with an air guiding device which transmits the barometric pressure to the static pressure measuring module. By means of the differential pressure type high sensitivity liquid level flow measuring device, full-automatic and real-time monitoring is achieved, people are free from heavy work of monitoring the liquid level regularly, and hidden dangers are removed in advance through warning information.

Description

technical field [0001] The invention belongs to the technical field of liquid level and flow on-line monitoring equipment, in particular to a differential pressure type high-sensitivity liquid level and flow measuring device. Background technique [0002] On-line monitoring technology is to continuously or regularly monitor the condition of the equipment under the condition that the equipment under test is running. Due to the special environment in which the on-site monitoring equipment is located, mechanical flow rate measuring instruments cannot be used. This requires that the product can not only adapt to the harsh environment, but also meet the requirements of normal operation for a long time. In the water network monitoring system, in order to achieve the best collection and processing of water source data, protect water resources, integrate and optimize the allocation of urban drainage resources, and provide technical support for major accident risk prevention and ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing mechanical liquid level flow rate measuring instrument is not suitable for the special environment where the on-site monitoring equipment is located and cannot work for a long time, the present invention especially provides a differential pressure high-sensitivity liquid level flow measuring device

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