Self-operated liquid level adjusting device

Abstract

The invention relates to the technical field of chemical production, in particular to a self-operated liquid level adjusting device. The self-operated liquid level adjusting device comprises a storagetank and a receiving tank, wherein the storage tank communicates with the receiving tank through a float adjusting valve; the float adjusting valve comprises a first connecting flange, a float, a valve body, a second connecting flange, a sealing gasket and a balance pipe connecting flange; the first connecting flange communicates with the storage tank and the receiving tank through a flange port;a valve body of the first connecting flange communicates with a valve body of the second connecting flange; and the float is installed in the valve body of the second connecting flange. According tothe self-operated liquid level adjusting device, when the liquid level in the storage tank rises, the float in a self-operated liquid level control valve floats upwards, and a valve is automatically opened at the moment; the higher the liquid level in the storage tank is, the maximum opening degree of the valve can be reached after the float completely floats upwards, and the flow quantity is greatly increased, so that the liquid level in the storage tank is rapidly reduced; when the liquid level in the storage tank falls back, the float falls down to touch the bottom under the action of gravity, and the opening degree of the valve is minimum; and therefore, the liquid level in the storage tank can be always controlled in a small range, and the self-operated liquid level adjusting device is simple and effective.

Description

technical field [0001] The invention relates to the technical field of chemical production, in particular to a self-operated liquid level regulating device. Background technique [0002] In chemical production, it is often necessary to automatically control the liquid level in the container. Although there are many ways to automatically control the liquid level, the requirements and precision of various liquid level control are different, but the basic control principles can be summarized as general The main difference between them is the way of detecting the liquid level, the form of signal feedback and the difference in the controller. The liquid level control process of the storage tank is: the liquid level in the storage tank is detected by the liquid level transmitter, and sent to the automatic regulating valve through the electronic signal, and the automatic regulating valve automatically adjusts the valve opening according to the set liquid level parameters, The purp...

AI Technical Summary

Problems solved by technology

In this way, installing a complete set of liquid level control device is time-consuming and labor-intensive, and the cost is not small; if a set of liquid level automatic control system is added to the existing device, it also needs to face the problem of production interruption

In addition, if the liquid in the storage tank is a strong corrosive medium such as strong acid and strong alkali, the material selection cost of the liquid level transmitter and the automatic regulating valve will be greatly increased, which is more troublesome.

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