A tidal flat water quality testing and sampling device

Abstract

The invention discloses a tidal-flat water quality detection and sampling device. By the coordination of a twist rod and a rotor, drilling down and lifting of a rotary sleeve are achieved, and an appointed-depth water sample can be separated from a mixed water sample generated during the lifting. The tidal-flat water quality detection and sampling device is characterized in that a water suction pipe is arranged at the bottom of the rotary sleeve and communicated with the rotary sleeve, the water suction pipe is made of rigid materials, the outer side of the water suction pipe is provided witha plurality of hexagonal-prism-shaped protrusions made of iron materials, the outer side of the rotary sleeve is provided with thread teeth, heating pieces are arranged on the thread teeth, one end ofa fixed tube is arranged in the rotary sleeve, the other end of the fixed tube penetrates out of the top of the rotary shaft, a protective pad is arranged between the outer wall of the fixed tube andthe rotary sleeve, the protective pad sequentially comprises a rubber layer and a sponge layer from bottom to top, the inner wall of the fixed tube is provided with a thread, one end of a telescopicrod is slidably arranged in the other end of the fixed tube, and a holding rod is arranged at the other end of the telescopic rod.

Description

technical field [0001] The invention relates to a tidal flat water quality testing and sampling device, which relates to a sampling device used in water conservancy construction for testing the tidal flat water quality, and belongs to the field of water conservancy construction. In particular, it relates to a device which, through the cooperation of the twist rod and the rotor, enables the rotary sleeve to complete the drilling and lifting actions, and separates the water sample at a specified depth from the mixed water sample produced during lifting. Background technique [0002] At present, as an important data source for environmental protection and governance, water quality testing can effectively reflect the types of pollutants in the water body, the concentration and change trend of various pollutants, evaluate the water quality, and analyze the chromaticity and pH of the collected water samples. value, electrical conductivity, suspended solids, heavy metal content, et...

AI Technical Summary

Problems solved by technology

[0002] At present, as an important data source for environmental protection and governance, water quality testing can effectively reflect the types of pollutants in the water body, the concentration and change trend of various pollutants, evaluate the water quality, and analyze the chromaticity and pH of the collected water samples. value, electrical conductivity, suspended solids, heavy metal content, etc., can timely know the change of water quality and take effective control measures. It is relatively developed in China's harbors and shallow seas. Due to its special geological conditions, tidal flats are in Bohai Bay, Jiaozhou Bay, The tidal flat surveys that have been carried out in the Yangtze River Estuary, Hangzhou Bay and various places play a major role in the further development of aquatic products, salt industry, tidal power generation, farmland water conservancy, shipping, etc. In the tidal flat survey work, water quality testing is one of the important tasks. The sediment content in tidal flats is relatively high, which has certain obstacles to water quality sampling. Traditional water quality sampling tools are difficult to go deep into tidal flats to designated locations. Traditional tidal flat water sampling operations use manual excavation to dig tidal flats to predetermined depths, and use samplers and other tools to extract water bodies, the excavation work using this kind of operation method consumes a lot of physical strength for operators, and is not suitable for a large number of water quality sampling operations. Now commonly used water quality sampling devices, such as the publication number CN206074305U discloses a water quality sampling equipment for groundwater body environmental testing. , the device drives the sampling steel pipe to rotate through the driving motor, drills the rock formation through the drill bit at the bottom of the sampling steel pipe, and sucks water into the water quality sampling cavity through the external suction pipe to complete the deep underground water quality sampling. Use this device to perform tidal flat water quality sampling operation When the tidal flat area is relatively wet and the surface soil is soft, it is difficult to erect and transport the device. The whole process of drilling the device is completed by driving the motor. For tidal flats with soft surface, middle and lower layers, the upper layer can be easily drilled by pressing down manually. The use of a drive motor wastes a lot of energy. The sampling of this device is through the natural flow of the sample liquid through the side wall of the steel pipe during the drilling process. The obtained sample liquid is a mixture of sample liquids at various depths during the drilling process, and it is difficult to accurately obtain the sample liquid at the specified depth. , which affects the detection accuracy, it is not suitable for tidal flat water quality detection and sampling

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