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Liquid sample-reserving and sample-taking device

A sampling device and sample retention technology, applied in the direction of analyzing materials, instruments, etc., can solve the problems of inconvenient sampling location, high cost, complex structure, etc., and achieve the effect of convenient sampling, simple structure and operation

Pending Publication Date: 2017-12-08
NANJING COLLEGE OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve some problems in manual operation and power equipment, the main problems are inconvenient sampling location, consumption of human resources, high cost, complex structure, unfavorable for automatic monitoring and analysis, etc.

Method used

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  • Liquid sample-reserving and sample-taking device

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] In the present invention, using such as figure 1 The shown device realizes liquid sample retention and sampling. First, the jet pump (101) in the device is installed at the end of the liquid pipeline or in the middle of the pipeline, for example: the sewage outlet of the pipeline and the position where sampling is required in the middle of the pipeline. figure 1 The upper part of the jet pump is the liquid inlet, the diffuser tube (102), the outer connection extends into the sample retention tube, and the lower part is the liquid outlet. The liquid passes through the jet pump (101), and a negative pressure will be formed in the suction chamber (113).

[0017] When fluid flows through the jet pump, figure 1 When the middle control valve (104) is closed, the first switch valve (106) is closed, and the second switch valve (107) is opened, the liquid will enter the sampler from the sample port due to the negative pressure generated in the suction chamber (113) (103), afte...

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Abstract

The invention provides a liquid sample-reserving and sample-taking device. The liquid sample-reserving and sample-taking device comprises a jet pump, a sample-reserving and sample-taking device and a sample-taking container; the jet pump comprises a diffusing pipe, a throat pipe and a suction chamber which are connected with one another sequentially; one end of the sample-reserving and sample-taking device is connected with the diffusing pipe through the pipeline, and the other end of the sample-reserving and sample-taking device is connected with the throat pipe through the pipeline; the sample-reserving and sample-taking device is Z-shaped; the sample-taking container is connected with the sample-reserving and sample-taking device and is provided with a control valve. By the device, the newest sample is reserved in a liquid sample-reserving device, liquid needing to be analyzed and each reagent are sampled, and the sample-taking sample enters a reaction analysis system for analysis. The liquid sample-reserving and sample-taking device has the characteristics of being simple in sample-reserving and sample-taking structure and operation, capable of reserving the newest sample in the flow path, convenient in sampling and free of power requirement, and is suitable for occasions needing sample reservation and sample taking adaptive to manual or automatic reaction analysis systems.

Description

technical field [0001] The invention belongs to the field of fluid transportation technology, and in particular relates to a liquid sample retention and sampling device. Background technique [0002] At present, it is often necessary to take samples or retain samples in the fluid flow path, for example: liquid sampling and retaining samples in the middle of the pipeline and sewage outlets, for liquid component analysis, process control and data comparison, etc. There are various methods for sampling or retaining samples. Except for some manual operations, most of them need to use power equipment such as power pumps to cooperate with other devices to complete sampling and retaining samples. [0003] In the process of manual sampling and sample retention, some sampling positions are not convenient for manual operation, occupy human resources, and are not suitable for automatic monitoring and analysis instruments. For the use of power equipment such as pumps, power consumption...

Claims

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Application Information

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IPC IPC(8): G01N35/10
CPCG01N35/1009G01N2035/1027
Inventor 王永
Owner NANJING COLLEGE OF INFORMATION TECH
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