Liquid pressure-maintaining and sampling tube

A sampling cylinder and liquid technology, applied in the direction of sampling devices, etc., can solve the problems that the sampler can no longer be sampled and the disassembly is complicated, and achieve the effect of simple structure, convenient operation and reliable sampling

Inactive Publication Date: 2015-07-22
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disassembly of the sampler is complicated after assembly, and the sampler cannot take samples before the sample in the cavity is taken out for testing, which has a certain impact on the efficiency of sampling activities

Method used

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  • Liquid pressure-maintaining and sampling tube
  • Liquid pressure-maintaining and sampling tube
  • Liquid pressure-maintaining and sampling tube

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Experimental program
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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings.

[0011] refer to Figure 1-3 , the liquid pressure-holding sampling cylinder of the present invention comprises a connector 4 arranged on a coaxial line, two cavities 2, 5 and two sampling valves 1, 7, the cavities are cylindrical with one end open, and two The open ends of the cavities 2 and 5 are threadedly connected with the two ends of the connector 4 respectively, and the connector 4 is provided with a communication hole 10, which connects the two cavities 2 and 5, and the two cavities 2 and 5 The other end is provided with stepped through holes, and the stepped through holes are coaxially arranged outer end hole 20, sealing hole 17, diversion groove 18 and diversion hole 19 from the outside to the inside, and the outer end hole 20 is tapped with an internal thread , the sampling valve is composed of a valve body 9 with an external thread, a sealing shaft 11 a...

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PUM

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Abstract

The invention discloses a liquid pressure-maintaining and sampling tube which comprises a connector, two cavities and two sampling valves, wherein the two cavities are respectively connected with the two ends of the connector; a communicating hole is formed in the connector and communicated with the two cavities, and ladder-shaped through holes are an outer end hole, a sealing hole, a flow guide groove and a flow guide hole from outside to inside in sequence and are formed in the two cavities; each sampling valve is composed of a valve body, a sealing shaft and a valve rod which are connected in sequence, matched with the corresponding ladder-shaped through hole through threads and fixed in the ladder-shaped through hole, each sealing shaft is in close fit with the corresponding sealing hole, a ball is propped against the end part of each flow guide hole, and pistons are respectively arranged in the two cavities. The liquid pressure-maintaining and sampling tube disclosed by the invention can realize spontaneous sampling without an additional drive device, is simple in structure, convenient to operate, good in pressure-maintaining property and reliable in sampling and can be recycled.

Description

technical field [0001] The invention relates to a sampling cylinder, in particular to a liquid pressure maintaining sampling cylinder. Background technique [0002] The deep sea is one of the hot research focuses of scientists from all over the world today. There are a large number of mineral resources near hydrothermal vents and the characteristics of biological communities in extreme environments, making them of great scientific research value. Deep-sea sampling technology is an essential means for studying hydrothermal fluids. At present, the research on the structure of deep-sea samplers is relatively mature. However, the disassembly of the sampler is complicated after assembly, and the sampler cannot take samples before the sample in the cavity is taken out for testing, which has a certain impact on the efficiency of sampling activities. Therefore, an isobaric transfer storage device with simple structure and convenient operation is very necessary. Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14
Inventor 吴世军陈欢蒋振辉杨灿军
Owner ZHEJIANG UNIV
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