Underground water and gas acquisition device
A gas collection and water body technology, applied in the direction of sampling devices, etc., can solve the problems of position and angle adjustment, and cannot guarantee the purity of samples, etc., to reduce errors, improve test accuracy and repeatability, and facilitate disassembly and assembly.
Active Publication Date: 2014-09-24
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology
[0005] Although the above sampler is easy to carry, it is difficult to adjust its position and angle underwater, and the purity of the sample cannot be guaranteed
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[0040] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.
[0041] see figure 1 As shown, it is a schematic structural diagram of the underground water body gas collection device of the present invention. The sampler device of the present invention includes a water holding unit, a water guiding unit, an exhaust unit, a sealing unit and an adjustment unit, wherein the water holding unit includes a stainless steel cylinder Cylinder 9 and upper cover 1, the upper cover 1 is combined with the cylinder 9; the upper cover 1 is made of stainless steel; please combine figure 2 As shown, it is a top view structure diagram of the upper cover of the present invention, and the upper cover is provided with water guide holes and air guide holes.
[0042] The water guide unit includes a water guide pipe 4 and a water guide hole. In this embodiment, the water guide pipe 4 is a c...
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The invention relates to an underground water and gas acquisition device which comprises a water containing unit, a water guide unit, an exhaust unit, a sealing unit and an adjusting unit, wherein the water containing unit comprises a cylinder and an upper cover; the upper cover is combined with the cylinder; the water guide unit comprises a water guide tube and a water guide hole; the water guide tube passes through the water guide hole in the upper cover and stretches into the bottom of a sampling bottle in the cylinder; the exhaust unit comprises a gas guide tube and a gas guide hole; the gas guide hole is formed in the upper cover; when the sampling device is put into water, a gas inside the cylinder is exhausted out from the gas guide tube; the sealing unit comprises a fluorine-free plastic gasket and a sleeve ring; the plastic gasket is embedded into a side groove in the edge of the upper end of the cylinder. The underground water and gas acquisition device belongs to environmental-friendly products, and is low in cost, small in occupied space, convenient to carry and easy to popularize.
Description
technical field [0001] The invention relates to the field of ecological monitoring, in particular to an underground water body gas collection device. Background technique [0002] Determining the age of groundwater (within 50 years) by measuring Chloro fluorocarbons (CFC) in groundwater is a new hot technology in the field of environmental hydrology research. The CFC technique was used as a tracer to determine the age of the groundwater and indicate that its recent recharge initially started in the 1970s. In the initial study, groundwater CFC samples were collected in glass syringes and immediately analyzed in the field by gas chromatography-electron capture detector (GC-ECD). In the field of oceanographic research, the use of glass syringes to collect and analyze CFC samples on deck became the most convenient research method at that time. [0003] At present, the sample collection in groundwater CFC research mainly adopts the field sampling method recommended by the CFC l...
Claims
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IPC IPC(8): G01N1/22
Inventor 张依章张远孟伟万峻郑磊唐常源
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI