Automatic control method and automatic control device of water valve of surface treatment rinsing bath

Abstract

The invention discloses an automatic control method and an automatic control device of a water valve of a surface treatment rinsing bath. The method comprises the following steps: a pH detecting probe is arranged in the rinsing bath and transmits detected pH value signal data in a rinsing bath back to a pH controller; the pH controller compares the detected pH value signal data in the rinsing bath with a determined value, and when the detected pH value signal data in the rinsing bath reaches the determined value, the pH controller outputs a control signal to an electric control water valve switch connected with the pH controller so as to control the opening and the closing of the water valve. The automatic control device comprises the pH detecting probe, the pH controller and the electriccontrol water valve switch, wherein the pH detecting probe is arranged in the rinsing bath and connected with the pH controller to detect the pH value in the rinsing bath; the pH controller is connected with the electric control water valve switch so as to output the control signal to control the opening and the closing of the water valve when the detected pH value reaches the determined value.

Description

technical field [0001] The invention relates to an environment-friendly and water-saving method and device, in particular to an automatic control method and device for a water valve applied to a surface treatment washing tank. Background technique [0002] At present, in all kinds of surface treatment processes for metal materials and other workpieces, water washing after degreasing (oil) and water washing after phosphating (water washing includes water rinsing or spraying) are involved. Basically, the water valve is in a normally open state. . Although generally in production control, there is a control requirement for the water valve, but because there is no specific quantification or data control, in order to ensure that the workpiece is cleaned by the operator, the water valve is always open, the water consumption is very large, and the waste is particularly serious. Increased production costs, while facing the increasingly depleted water resources, it is very important...

AI Technical Summary

Problems solved by technology

In order to reduce waste, some enterprises have also adopted the method of linking the closing and opening of the water valve with the production line chain, that is to say, the water valve is opened only when the chain is running, but the water saving effect is not ideal.

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