Radiation-resistant guide wave radar liquidometer

Abstract

The invention provides a radiation-resistant guide wave radar liquidometer. The radiation-resistant guide wave radar liquidometer comprises a meter head, a guide wave head and a guide wave structure,wherein the meter head is arranged at a far end, the guide wave head and the guide wave structure are assembled, the meter head comprises a processor, a signal emission unit and a signal receiving unit, the signal emission unit and the signal receiving unit are connected with the processor, a signal amplification unit is further connected between the signal receiving unit and the processor, a radio-frequency connector is arranged in the guide wave head, is used for connecting a radio-frequency cable and communicates with the signal emission unit and the signal receiving unit of the meter head,the guide wave structure comprises a metal sleeve, the top of the metal sleeve is fixedly connected by a flange disc, a guide wave rod or a cable is arranged in the metal sleeve, one end of the guidewave rod or the cable penetrates through the flange disc and is connected with the radio-frequency connector, and the other end of the guide wave rod or the cable is fixedly arranged at the bottom ofthe metal sleeve. By the radiation-resistant guide wave radar liquidometer, the problem that the guide wave radar liquidometer can bear a large amount of nuclear radiation is solved, the intensity ofan echo signal is further improved, and the radiation-resistant guide wave radar liquidometer can be used for measuring a low-dielectric constant liquid.

Description

technical field [0001] The invention relates to the technical field of reliable nuclear safety liquid level measurement, in particular to a radiation-resistant guided wave radar liquid level gauge of the liquid level measurement technology. Background technique [0002] Guided wave radar level gauge is a kind of liquid level measuring instrument in the industry. It can continuously measure the level of liquids, particles and slurries. The measurement is not affected by temperature changes, inert gases and steam, dust, foam, etc. Among them, the working principle of the guided wave radar level gauge is: the pulse signal output by the instrument propagates along the probe rod of the guided wave radar level gauge, when the pulse signal propagates to the contact position between the probe rod and the liquid surface, As the characteristic impedance of the pulse signal changes, an echo signal will be generated at the liquid surface. Then, the instrument can obtain the liquid level...

AI Technical Summary

Problems solved by technology

[0019] In view of this, the main purpose of the present invention is to provide a radiation-resistant guided wave radar level gauge. By making the guided wave radar level gauge into a split structure and optimizing the guided wave structure, the problem of the guided wave radar level gauge can be solved. To withstand the problem of high-dose nuclear radiation, at the same time, due to the optimization of the waveguide structure, the strength of the echo signal is further improved, and it can be used to measure liquids with low dielectric constants

Images