Gas intervention type liquid level measurement system

Abstract

The present invention provides a liquid level measurement device. The liquid level measurement device comprises a liquidometer body, and the liquidometer body includes an integrated welding forming body measuring tube, a connecting flange and a high temperature plug valve; the connecting flange fixedly connected with one end of the body measuring tube; the high temperature plug valve is connected with the body measuring tube to be one body through the connecting flange; a clamp cover tracing pipe is arranged between the high temperature plug valve and the connecting flange; the liquid level measurement device also comprises a poking needle, and the poking needle inserts the high temperature plug valve and penetrates the liquidometer body. The present invention further provides a gas intrusive liquid level measurement system. The gas intrusive liquid level measurement system is used for an reaction device. The gas intrusive liquid level measurement system comprises a liquid level measurement device as mentioned above, a liquid level control unit and a blowback system. According to the invention, the working conditions with high viscosity, high vacuum, high temperature and easy crystal may be steadily controlled in real time, and the problems of installation positions, difficult measurement and the like, are solved.

Description

technical field [0001] The invention relates to the field of liquid level measurement, in particular to a gas intervention type liquid level measurement system. Background technique [0002] The liquid level measuring device in the prior art has been widely used in the esterification reactor, the pre-shrinkage reactor and the final polymerization reactor of the PBT (polybutylene terephthalate) device. The esterification reactor, pre-shrinkage reactor and final polymerization reactor of the conventional PBT plant have a variety of liquid level measuring devices in the process of controlling materials in a high-temperature, high-vacuum airtight environment. The general liquid level control device basically realizes the liquid level control of normal temperature, normal pressure, and low viscosity. However, for high viscosity, high temperature, and high vacuum conditions, a C60 liquid level control of a radioactive substance is currently used. device and electric float level g...

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Problems solved by technology

[0014] The technical problem to be solved by the present invention is to provide a liquid level measuring device and a gas-intervening liquid level measuring device including it in order to overcome defects such as poor linearity of the display trend of the liquid level gauge, medium blockage, difficulty in installation, and easy oxygen leakage in the prior art. measuring system

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