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Depth-fixed undisturbed water sample collection system and method for collecting undisturbed water samples at fixed depth in calm waters

A collection system and undisturbed technology, applied in the field of undisturbed water sample collection systems, can solve problems such as low fidelity, achieve the effects of low surface tension, improve fidelity, and save space

Active Publication Date: 2017-10-24
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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  • Depth-fixed undisturbed water sample collection system and method for collecting undisturbed water samples at fixed depth in calm waters
  • Depth-fixed undisturbed water sample collection system and method for collecting undisturbed water samples at fixed depth in calm waters
  • Depth-fixed undisturbed water sample collection system and method for collecting undisturbed water samples at fixed depth in calm waters

Examples

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Effect test

Embodiment 1

[0057] Example 1: The original water sample collection system at fixed depth.

[0058] Such as figure 1 As shown, the depth-fixed original water sample collection system of the present invention is composed of four parts, the sampler 2, the sampling bottle 1, the upper connector 3 and the scale tube 4, which are sequentially connected. With reference to other drawings, it can be seen that the sampling bottle 1 includes a bottle body, a bottle cap 12, a pressing 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 upper ring 32; the scale tube 4 includes a hose 41 and a socket-type quick connector 42 connected to both ends of the hose.

[0059] Such as figure 2 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...

Embodiment 2

[0069] Embodiment 2: A collection method for collecting undisturbed water samples at a fixed depth in calm waters.

[0070] refer to figure 1 — Figure 8 , The present invention's fixed-depth original water sample collection method is based on the fixed-depth original water sample collection system of the present invention. The specific operation steps are as follows:

[0071] 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.

[0072] 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 sampling bottle 1, ...

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Abstract

The invention relates to a system for collecting undisturbed water samples at fixed depths and a method for collecting undisturbed water samples at fixed depths in calm waters. The depth-fixed original water sample collection system includes a sampling bottle, a sampler, an upper connector and a graduated tube; the sampling bottle includes a bottle body, a bottle cap, a pressure plate and a protective cap; the sampler includes a water inlet, a hanging beam and a lower Ring; the upper connecting body includes a handle and an upper ring; the weight of the sampler is 2 times the weight of the upper connecting body, and the weight sum of the sampler and the upper connecting body is the sampling The bottle, the sampler and the upper connecting body are more than 1.5 times the weight of the water body displaced below the water surface. The present invention is mainly used for collecting water samples containing volatile substances and oxygen-sensitive substances in wells, lakes, reservoirs, underground rivers and rivers with slow flow velocity, which can realize high-fidelity water sample collection, and can be used in sealed storage and During transportation, there is no extra space in the sampling bottle to avoid air oxidation.

Description

technical field [0001] The invention relates to a water sample sampling device and a collection method for water quality research, in particular to a fixed-depth and undisturbed water sample collection system and a method for collecting undisturbed water samples at a fixed depth in calm 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 dis...

Claims

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Application Information

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