Intelligent fluid measurement and control device and method

Abstract

The invention relates to an intelligent fluid measurement and a control device and a method, and belongs to the technical field of mixed application of mechanics, fluid, inorganic chemistry, automation and the like. The intelligent fluid measurement and a control device aims to solve difficult problems that fluid flow amount control accuracy and intelligent degree are low, comprises an electric control back pressure valve, a pressure sensor, a pulse type damper, a PVC pipeline, an electromagnetic metering pump, and combines digital-analog technology and chemical and automatic technology. The electric control back pressure valve is communicated with the pulse type damper through a PVC pipeline; the pressure sensor is arranged in the PVC pipeline between the electric control back pressure valve and the pulse type damper; the electromagnetic metering pump is communicated with the pulse type damper through the PVC pipeline.

Description

technical field [0001] The invention relates to the fields of mixed application technologies such as mechanics, fluid, chemistry and automation, and in particular to an intelligent fluid measurement and control device and a measurement and control method. Background technique [0002] In the field of fluid measurement and control, when the single metering pump mode is usually used to control different fluids, different viscosities, and different densities, it is extremely difficult to control the accuracy in the actual operation process. Especially under high precision requirements, the single metering pump is used. , it is difficult to achieve flow stability. A common method is to add a damper to the front end of the manual back pressure valve to stabilize the pressure, but when this method is affected by factors such as spring coefficient, fluid viscosity, and fluid density, the flow rate will change greatly. Moreover, the metering pump belongs to the pulse type and canno...

AI Technical Summary

Problems solved by technology

[0002] In the field of fluid measurement and control, when the single metering pump mode is usually used to control different fluids, different viscosities, and different densities, it is extremely difficult to control the accuracy in the actual operation process. , it is difficult to achieve a stable flow

The common method is to add a damper to the front end of the manual back pressure valve to stabilize the pressure, but when this method is affected by factors such as spring coefficient, fluid viscosity, and fluid density, the flow rate will change greatly

Moreover, the metering pump is a pulse type and cannot be used in conjunction with a flow meter.

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