Shallow water sequence pressure-holding sampler
A sampler and sequence technology, applied in the field of shallow-water sequence pressure-holding samplers, can solve the problems of deep-sea samplers with large limitations and the inability to take water samples, etc., and achieve the effects of simple and convenient structure, high operational reliability, and simple trigger structure
Inactive Publication Date: 2019-01-18
ZHEJIANG UNIV
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Problems solved by technology
However, the limitations of deep-sea samplers are also very large, and water samples cannot be collected in places with low water pressure in shallow water areas.
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[0012] The following is a specific example of the present invention, and the present invention will be further described in conjunction with the accompanying drawings.
[0013] refer to Figure 1-3 , a shallow water serial pressure-holding sampler of the present invention, comprising 11 sampling cylinders 2, 1 pressure-holding cylinder 6, 1 pipeline 5 that turns one way to eleven ways, and a waterproof cover 1 and a valve disc 4 set on the coaxial line , the valve disc 4 is sealed and fixed with the opening end of the waterproof cover 1, and there are 12 axial stepped blind holes on the inner side of the valve disc 4, and the 12 stepped blind holes are respectively threaded with 12 motor-driven valve modules 3, and the valve disc 4. There are 12 axial threaded holes on the outside, and the 12 threaded holes are respectively connected with 11 sampling cylinders 2 and 1 pressure-holding cylinder 6. The sampling cylinder 2 includes the sampling valve spool 2-6 and the coaxial set...
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The invention discloses a sequential pressure-maintaining sampler of shallow water. The sequential pressure-maintaining sampler of shallow water comprises a water shield, a valve disk, 12 motor drive valve modules, 11 sampling cylinders, a pressure-maintaining cylinder and a 1-to-11 pipeline. The sampling cylinders and the pressure-maintaining cylinder are all enclosed cylinders with two ends provided with valves. The inside of each cylinder is divided into two chambers through a piston. The pressure-maintaining cylinder and the 11 sampling cylinders are all distributed on the periphery of the water shield. Ends of the sampling cylinders and a liquid inlet of the valve disk are communicated through sampling channels. An end of the pressure-maintaining cylinder and a pressure-maintaining port of the valve disk are communicated through a pressure-maintaining channel. An inlet end of the pipeline is connected to the pressure-maintaining port. The other 11 outlet ends are respectively connected to the other ends of the 11 sampling cylinders. The 12 motor drive valve modules respectively control break-make of the pressure-maintaining channel and the 11 sampling channels. According to the sequential pressure-maintaining sampler of shallow water, shallow water is acquired by a vacuum negative pressure mode. The sequential pressure-maintaining sampler of shallow water has a simple structure, and weight of the sequential pressure-maintaining sampler in water is only a few kilograms. In addition, the sequential sampler has an independent pressure compensation module such that reliable pressure maintenance for samples can still be achieved when the external environment changes.
Description
technical field [0001] The invention relates to a sampler, in particular to a shallow water serial pressure-holding sampler. Background technique [0002] Hydrothermal activity is one of the hot research focuses of scientists from all over the world today. Hydrothermal areas contain a large number of mineral resources and the characteristics of biological communities in extreme environments, making them of great scientific research value. Underwater sampling technology is an essential means to study hydrothermal fluids. At present, domestic research on underwater samplers is still very lacking. The existing deep-sea samplers take advantage of the high pressure characteristics of deep sea water, and water samples can automatically enter the sampler. Pressurize. However, the limitations of deep-sea samplers are also very large, and water samples cannot be taken in places with low water pressure in shallow water areas. In shallow water areas, the gap between water pressure a...
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IPC IPC(8): G01N1/10G01N1/14
Inventor 吴世军李江涛陈欢杨灿军
Owner ZHEJIANG UNIV