Liquid level control device used in high temperature condition

Abstract

The invention discloses a liquid level control device used in a high temperature condition. The liquid level control device used in the high temperature condition has the advantages of high temperature resistance, simple structure and low cost. The liquid level control device used in the high temperature condition comprises a liquid source containing area, wherein the liquid source holding area is communicated with a liquid bath through a liquid inlet channel, and the liquid level of the liquid source holding area is higher than the liquid level of the liquid bath. A sealed module is arranged inside of the liquid inlet channel, and the sealed module matches with the liquid inlet channel in a sealing mode. The sealed module is connected with a control module which is positioned in the liquid bath, the control module transforms liquid level information into signals and transmits the signals to the sealed module, and the signals transmitted by the control module to the sealed module are force signals, position signals and deformation signals. The control module is provided one or more heavy blocks, the number of the heavy blocks can be increased or decreased and the heavy blocks can be replaced. The liquid level control device used in the high temperature condition achieves the purpose of liquid level controlling of high-temperature liquid through material selection, principle structure and sealing surface processing.

Description

technical field [0001] The invention relates to a liquid level control device, in particular to a liquid level control device operating in a high temperature environment. Background technique [0002] In various chemical production, agriculture, forestry, animal husbandry, military fortifications and other industries, liquid level control mainly has the following methods: spring type, capacitive type, electrode type, proximity switch type and float lever type, etc., the above-mentioned several types The commonality of the method is that it uses sensing components, such as water level gauges, immersion level sensors, floating balls, etc. to detect the height of the liquid level, and then feeds back the liquid level signal to the PLC (logic controller) through wires or mechanical means. Chip or mechanical structure to control the opening, opening, closing and closing of the valve of the liquid inlet channel, so as to achieve the effect of liquid level control. [0003] H...

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Problems solved by technology

[0003] However, in terms of cost accounting, weather resistance, service life, etc., the above methods are not suitable for high temperature liquid level control

In the above-mentioned traditional liquid level control: the cost of electronic components is high, the weather resistance is poor, and the operating temperature and humidity must be controlled within a suitable range, so it is difficult to adapt to harsh environments; the mechanical transmission structure is complicated, and some parts are not applicable In high-temperature environments, and in environments with large temperature changes, mechanical parts are prone to metal fatigue, resulting in component failure; conventional valves have rubber parts, and rubber parts are difficult to play a sealing role in high-temperature liquids

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