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System for collecting undisturbed water samples at fixed depth and method for collecting undisturbed water samples at fixed depth in turbulent waters

A collection system and original technology, applied in the direction of sampling devices, etc., can solve the problems of low fidelity, achieve low surface tension, improve fidelity, and high weather resistance

Active Publication Date: 2017-08-29
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] One of the purposes of the present invention is to provide a fixed-depth original water sample collection system to solve the problem of low fidelity of existing collection devices in collecting water samples containing volatile, oxygen-sensitive and other environmentally sensitive substances

Method used

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  • System for collecting undisturbed water samples at fixed depth and method for collecting undisturbed water samples at fixed depth in turbulent waters
  • System for collecting undisturbed water samples at fixed depth and method for collecting undisturbed water samples at fixed depth in turbulent waters
  • System for collecting undisturbed water samples at fixed depth and method for collecting undisturbed water samples at fixed depth in turbulent waters

Examples

Experimental program
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Effect test

Embodiment 1

[0062] Example 1: The original water sample collection system at fixed depth.

[0063] Such as figure 1 As shown, the depth-fixed original water sample collection system of the present invention includes five components including a sampler 2 , a sampling bottle 1 , an upper connector 3 , a scale tube 4 and a positioning rod 5 . refer to figure 2 , image 3 , Figure 7 , Figure 9 It can be seen that the sampling bottle 1 includes a bottle body, a bottle cap 12, a pressure plate 13 and a protective cap 14; the sampler 2 includes a water inlet 21, a hanging beam 22 and a lower ring 23; ; The scale tube 4 includes a hose 41 and a socket-type quick connector 42 connected to both ends of the hose.

[0064] Such as image 3 As shown, the bottle body of the sampling bottle 1 is divided into two parts, an upper bottle body 101 and a lower bottle body 102. The upper bottle body 101 and the lower bottle body 102 are cylinders with the same internal diameter, and the ends of the t...

Embodiment 2

[0076] Embodiment 2: A method for collecting undisturbed water samples at fixed depths in turbulent waters.

[0077] With reference to the accompanying drawings, the original water sample collection method at fixed depth of the present invention is based on the original water sample collection system at fixed depth of the present invention. The specific operation steps are as follows:

[0078] 1. Unscrew and put the protective caps 14 installed on the upper and lower mouths of the sampling bottle 1 respectively, and then pull out the pressure plate 13 in the bottle caps 12 connected to the upper and lower mouths of the sampling bottle 1 to make the turning The following connecting pipe 107 is straight, exposing the bottle cap.

[0079] 2. Connect the upper connector 3 to the upper end of the sampling bottle 1, connect the sampler 2 to the lower end of the sampling bottle 1, insert the first end tube 203 on the sampler 2 into the connecting pipe 107 at the lower end of the samp...

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Abstract

The invention relates to a depth-fixed undisturbed water sample collection system and a collection method for collecting an undisturbed water sample at a fixed depth in a turbulent water area. The depth-fixed undisturbed water sample collection system comprises a sampling bottle, a sampler, an upper connection body, a graduated pipe and a positioning rod, wherein the sampling bottle comprises a bottle body, a bottle cover, a pressing plate and a protection cap; the sampler comprises a water feeder, a hanging beam and a lower ring; the upper connection body comprises a lifting beam and an upper ring; the weight of the sampler is twice that of the upper connection body; the sum of the weights of the sampler and the upper connection body is more than 1.5 times the weight of water discharged by the sampling bottle, the sampler and the upper connection body below a water level. The depth-fixed undisturbed water sample collection system is mainly used for collecting a water sample containing volatile substances and oxygen-sensitive substances in a turbulent river, so that high-fidelity water sample collection can be realized; furthermore, in hermitical storage and transportation processes, no redundant space exists in the sampling bottle, so that air oxidization is avoided.

Description

technical field [0001] The invention relates to a water sample adopting device and a collection method for water quality research, in particular to a fixed-depth original water sample collection system and a fixed-depth original water sample collection method in turbulent waters. Background technique [0002] According to the published literature, there are four main types of current depth-fixed sampling devices, which are described as follows: [0003] 1. Put the sampling container into the water to a predetermined depth, the water sample enters the sampling container and fills the sampling container, raises the water surface, and pours it into a sampling bottle for storage. The disadvantages are: 1) The water sample enters the sampler in a turbulent state, and the volatile substances in the water sample are easy to overflow; 2) The air left in the sampler is easy to oxidize the oxygen sensitive substances in the water; 3) The air left in the sampler The discharge process ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/10G01N1/20
Inventor 温吉利
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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