Liquid feeding automatic control system and method

Abstract

The invention relates to a liquid feeding automatic control system and method. The liquid feeding automatic control system comprises a PLC and further comprises a liquid storage tank, a filter, a lowpressure chamber, a pump body, a high pressure chamber, an outlet valve, a flow meter, a solenoid valve, a pressure sensor, a back pressure injector and a mixer which are sequentially connected through pipelines; the pump body is connected to the PLC through a variable frequency motor, pipelines on the two sides of the pump body are provided with bypass valves, the flow meter is connected to the PLC through an encoder, and the solenoid valve and the pressure sensor are connected to the PLC; and the back pressure injector is connected to the PLC through a switch board. By means of the liquid feeding automatic control system and method, the PLC is used for controlling the conveying speed of liquid, variable frequency control is achieved, the accuracy and the automatic operation of filling are ensured, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a liquid feeding control method, in particular to an automatic liquid feeding control system and method mainly used in the battery production process. Background technique [0002] The traditional automobile industry needs to consume a large amount of oil resources, and the development of traditional industrialization has caused excessive consumption of earth resources. Energy shortage is an increasingly serious test for all mankind. It has become a global problem that concerns the whole world. sustainable development of human beings. [0003] Automobiles also pollute the environment while bringing convenience to people. After a large number of studies, it has been shown that exhaust emissions from fuel vehicles are the main cause of air pollution. The emission of automobile exhaust has caused the greenhouse effect in the city, and at the same time caused the destruction of the ozone layer, forming acid rain and other atmosphe...

AI Technical Summary

Problems solved by technology

[0004] After vigorous research and development of electric vehicles in recent years, power batteries have gradually entered the automotive field, and electric vehicles can partially replace fuel vehicles, but the power batteries of electric vehicles are still far from mature, and there is still a long way to go. The production process is also in the process of continuous research and development

Accurate metering and feeding of liquid is one of the chemical reaction processes involved in the production of battery active materials. Due to the wide application of weighing methods, the method of mass metering and feeding is generally used to complete the weighing and feeding of liquids. However, this method Difficult to achieve precision and intelligence

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