Novel multi-point water sample collection device for environmental detection

Abstract

The invention discloses a novel multi-point water sample collection device for environment detection, and belongs to the technical field of environment detection. The device comprises a box body, a vertical partition plate is vertically arranged in the middle of an inner cavity of the box body, and the inner cavity of the box body is divided into a first chamber and a second chamber by the vertical partition plate. By arranging a floating block device, water can be quantitatively extracted, and after completion of an extraction amount, a floating block blocks an exhaust pipe, so the water extraction of the layer is automatically stopped, and the bottom water is prevented from entering the first chamber after being preferentially collected; meanwhile, after sampling of each layer of collection box is completed, an air pipe is blocked, so a left air extraction structure is difficult to extract, and the extraction can be judged to be finished; the air extraction is labor-saving through anarranged hand pressing rod and the lever principle; and large impurities floating in water can be filtered out through an arranged weighting filter box,and meanwhile, the weighting effect can also be achieved, so the detection depth is more accurate.

Description

technical field [0001] The invention relates to the technical field of environmental detection, in particular to a novel multi-point water sample collection device for environmental detection. Background technique [0002] The collection and preservation of water samples is the basis of water pollution control and research. As time goes by, the cumulative effect of environmental problems becomes more and more prominent. How to effectively collect representative water samples has become the key to water environment governance and research. There are a large number of sedimentary or flocculated pollutants deposited on the bottom of water bodies such as rivers, lakes, and reservoirs, which affect the water quality of the water body. Especially in Northeast China, the annual average rainfall is small and the water exchange rate of the reservoir is low. After years of operation, floc deposition is common in the lower layer of the reservoir and the pollution is serious. With ec...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a novel multi-point environmental detection water sample collection device to solve the problem that although water samples of different depths can be collected simultaneously in the above-mentioned background technology, the effect is not good. Different, the length of the water pipe is different, the water in the bottom sample chamber enters faster than the high-level sample chamber, before the high-level sample chamber is collected, the water in the bottom sample chamber will overflow from the left suction pipe into the first chamber, making non- There is water accumulation in the collection chamber, and the device is difficult to observe the collected water. It only draws a certain amount of water by feeling. If it is too much, the water will enter the non-collection chamber. If it is too small, it cannot meet the requirements of water body detection. The pumping mode with the device is more laborious, which will consume more physical strength of the inspectors

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