Liquid sample vacuum acquisition device and control method

A liquid sample and collection device technology, applied in the mechanical field, can solve the problems of unreported, inconvenient fluid sampling work, etc., and achieve the effect of accurate quantitative sampling and stable vacuum degree

Pending Publication Date: 2019-12-24
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the vacuum environment, it is extremely inconvenient to sample the products produced or the fluids transported during the operation of the equipment
At the same time, there are no reports on the equipment and methods of intelligent sampling under normal pressure or positive pressure environment.

Method used

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  • Liquid sample vacuum acquisition device and control method

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Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: as figure 1 As shown, a liquid sample vacuum collection device is mainly composed of three parts: a sampling unit, a vacuum unit and a control unit.

[0022] The sampling unit is mainly composed of a sampler 1, a vacuum pressure gauge 4, a vacuum pressure sensor 5, a liquid level sensor 6, a liquid inlet pipe 7, an exhaust pipe 8, a sample discharge port 11, a light source 12, a sight glass 13 and a first electric valve 14 , the third electric valve 16, the fourth electric valve 17, the fifth electric valve 18 and the sixth electric valve 19.

[0023] The vacuum unit is mainly composed of a buffer 2, a vacuum pump 3, an intake pipe 9, an exhaust pipe 10 and a second electric valve 15.

[0024] The control unit is mainly composed of a pressure sensor 5, a liquid level sensor 6, a first electric valve 14, a second electric valve 15, a third electric valve 16, a fourth electric valve 17, a fifth electric valve 18, a sixth electric valve 19 and a PLC The com...

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PUM

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Abstract

A liquid sample vacuum acquisition device and control method belongs to the technical field of machines. A sampler is connected with sight glasses and a liquid level sensor, the bottom of the sampleris connected with a fifth electrically-operated valve by a pipeline, the other end of the fifth electrically-operated valve is connected with a layout hole, the top of the sampler is connected with afirst electrically-operated valve, the other end of the first electrically-operated valve is connected with a liquid inlet pipe, the other end of the liquid inlet pipe extends to the bottom of an inner cavity of the sampler, the top of the sampler is connected with a third electrically-operated valve and a sixth electrically-operated valve, the other end of the third electrically-operated valve isconnected with a vacuum pressure meter, a vacuum pressure sensor and a fourth electrically-operated valve, the other end of the fourth electrically-operated valve is connected with the top of a buffer, and a part of the pipeline is an exhaust pipe. The liquid sample vacuum acquisition device has the advantages that intelligent and accurate quantitative sampling can be achieved under a vacuum state, the stability of vacuum degree can be ensured during sampling, and the problem of air leakage of sampled equipment is prevented.

Description

technical field [0001] The invention relates to a liquid sample vacuum collection device and a control method, belonging to the field of mechanical technology. Background technique [0002] With the continuous development of the national economy, the level of industrialization is getting higher and higher. In petrochemical, mineral mining, iron and steel smelting, pharmaceutical manufacturing, refrigeration and air conditioning and other fields, there are a large number of fluid transportation and operation in equipment to work in a vacuum environment. Due to the vacuum environment, it is extremely inconvenient to sample the products produced or the fluids transported during the operation of the equipment. Simultaneously, the equipment and method of intelligent sampling under normal pressure or positive pressure environment have not been reported yet. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1031G01N2001/1418
Inventor 王刚朱亦珺董佩文张群力刘芳
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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