Online sampling dilution tube for particles

A technology of particles and sampling tubes, which is applied in the direction of sampling devices, preparation of test samples, etc., can solve problems such as clogging, and achieve the effect of avoiding clogging problems, avoiding moisture condensation, and simple structure
CN107063779AInactive Publication Date: 2017-08-18ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2017-08-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an online sampling dilution tube for particles. The dilution tube comprises a tube body, wherein the tube body is sequentially divided into an inlet section, a mixing section and a rectifying section in a material flowing direction, a sampling tube and a gas nozzle are arranged at the inlet section, the gas nozzle is communicated with a gas passage arranged outside the tube body, the rectifying section is a rectifying tube, and the gas nozzle is a converging-diverging nozzle or a converging nozzle. The online sampling dilution tube for the particles is based on compressed air injection suction and converging-diverging structure rectification technologies, the blockage problem in the concentrated phase gas-solid two-phase flow sampling process can be solved, the moisture condensation phenomenon in the sampling process can be avoided, and continuous and stable sampling of concentrated phase particles in the gas-solid two-phase flow field can be realized.
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Description

technical field

[0001] The invention relates to the field of gas-solid two-phase flow on-line sampling, in particular to a particle on-line sampling dilution tube based on compressed gas jet suction and scaling structure rectification. Background technique

[0002] Industrial industries such as electric power, cement, and medicine have strict requirements on the particle size of particles. Particle size measurement is an important link in the production process. At present, the most common method of measuring particle size is to take samples for offline measurement, and take the taken samples to the laboratory. Measured by traditional sieving method or laser particle size method. What they have in common is that they all need to take the sample out of the pipeline, and the sampling tube is an indispensable tool. Due to the different concentration, particle size and humidity of particles in different industrial occasions, the applicable environment of the sampling tube is al...

Claims

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