A sampling device and method

Abstract

The invention discloses a sampling device and method suitable for liquid or solid particles / powder or a liquid-solid mixture in a gas-solid system or a gas-liquid-solid system. The sampling device comprises a blocking component, a middle tube sampling hole, an inner tube sampling hole, a built-in baffle, an outer tube, a middle tube, an inner tube and an anti-rotation rod, wherein the sampling endof the outer tube is detachably connected with the blocking component; the sampling end of the middle tube is connected with the blocking component; the middle tube is sleeved with the outer tube; the middle tube sampling hole is formed in the side wall of the sampling end of the middle tube; the inner tube can axially move in the middle tube; a port of the sampling end of the inner tube is sealed; the built-in baffle is arranged in the sampling end of the inner tube; a scale chute is formed in the inner wall of the inner tube; the built-in baffle can slide along the scale chute; the inner tube sampling hole is formed in the side wall of the inner tube; a sampling groove is formed between the port of the sampling end of the inner tube and the built-in baffle, a sample enters the samplinggroove through the middle tube sampling hole and the inner tube sampling hole, and sampling is complete accordingly.

Description

technical field [0001] The present invention relates to a sampling device and method for liquid or solid particles / powder or liquid-solid mixtures. Background technique [0002] In the prior art, samplers for liquids and liquid-solid mixtures can only take surface samples, and cannot take samples deep into them, for example, samples in liquid-solid mixtures, liquids with changing compositions, etc. Therefore, the measured data are as follows: The liquid holding capacity of the particles is not accurate, resulting in unnecessary experimental errors or economic losses. [0003] When conducting liquid-solid two-phase or gas-liquid-solid three-phase experiments, it is often necessary to determine the operating characteristics and hydrodynamic properties of the bed by observing the degree of wetting or liquid holdup of the particles. In order to ensure accurate operating conditions, it is necessary to The catalyst particles in the container are detected, and sampling tubes are g...

AI Technical Summary

Problems solved by technology

[0010] At present, the design structure of the sampling device is mostly complicated, and the versatility for different systems is poor. It is difficult to meet the demand for sampling in dynamic experiments. It is difficult to sample when the gas phase exists. Therefore, a convenient operation, simple structure and strong applicability is designed. Liquid, solid particle / powder or liquid-solid mixture sampling device is the problem that needs to be solved at present

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