Anti-clogging type air blowing method liquid level gauge that can be used in polyester reactor

Abstract

The invention relates to an anti-blocking air blowing liquid level meter applicable to a polyester reactor. The anti-blocking air blowing liquid level meter comprises a first sleeve and a second sleeve which are arranged on a tank body; the upper ends of the first sleeve and the second sleeve are respectively connected with a first sealing ball valve and a second sealing ball valve; the upper ends of the first sealing ball valve and the second sealing ball valve are respectively mounted with a first poking pin device and a second poking pin device; the first poking pin device and the second poking pin device are provided with a first poking pin and a second poking pin; both the first sleeve and the second sleeve are sandwiched sleeves with pipe walls designs as interlayer structures; heating devices / heating heat mediums are arranged in the hollow parts of the interlayer structures; a first high pressure side air blowing pipe is arranged in the first sleeve; an opening which is of a V-shaped structure is arranged at the bottom of the high pressure side air blowing pipe. According to the liquid level meter, the blockage of the pipeline is effectively prevented; the liquid level meter is wide in application range, good in reliability and high in precision, and is applicable to the liquid level measurement of a second pre-condensation reactor, a final-condensation reactor and other situations.

Description

technical field [0001] The invention relates to an anti-clogging type air-blowing liquid level gauge which can be used in a polyester reactor, and can be mainly used for liquid level measurement in a second pre-condensation reactor, a final polycondensation reactor or other suitable occasions. Background technique [0002] The liquid level detection in the second pre-condensation reactor and the final polycondensation reactor in the existing polyester plant mostly uses gamma-ray liquid level gauges to measure the liquid level. Because the gamma-ray liquid level gauges are expensive, installation and maintenance are very difficult. Trouble, the γ-ray itself is harmful to the human body, and it is not energy-saving and environmentally friendly. In addition, some polyester devices use the blowing method of liquid level gauges. The blowing pipe has no anti-blocking measures, but the blowing pipe is often blocked, which affects the measurement of the liquid level. . Contents of...

AI Technical Summary

Problems solved by technology

[0005] Since the two bushings of the air blowing method liquid level gauge are equipped with a needle device through the sealing ball valve, when the bushing or other pipes in the bushing are blocked, the sealing ball valve can be opened, and the needle can be used to penetrate through the sealing ball valve. The casing or other pipes in the casing will push out the blocking material, and the sealing ball valve will be closed during normal detection, which will not cause negative effects due to the existence of the needle, thus conveniently and effectively solving the long-term problem of the blowing method that has troubled people. Due to the problem of blockage failure of the liquid level gauge, the purpose of preventing the blockage of the liquid level gauge has been realized, the applicable occasions of the liquid level gauge have been expanded, and the reliability of the detection data has been improved. According to the applicant's experiment, this kind of blowing type liquid level gauge can It is well adapted to the occasions where the medium viscosity is high and the pipes are prone to blockage, such as the second pre-condensation reactor and the final polycondensation reactor

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