High-temperature high-pressure sampling valve used for deep sea

A high-temperature, high-pressure, sampling valve technology, applied in the direction of sampling devices, etc., can solve the problems of increasing the complexity of sampling equipment, corrosion resistance can not meet the requirements, etc., to achieve increased convenience, good sealing performance, excellent high temperature and corrosion resistance Effect

Inactive Publication Date: 2009-06-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the high-temperature valves commonly used are made of stainless steel, which cannot meet the requirements in terms of corrosion resistance.
Although the existing titanium alloy stop valve can be used for hydrothermal sampling, it needs to rotate the handle on the stop valve to open and close the valve, and a complicated driving mechanism is required on the sampling device to realize this action, which will increase the complexity of the sampling device degree

Method used

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  • High-temperature high-pressure sampling valve used for deep sea
  • High-temperature high-pressure sampling valve used for deep sea
  • High-temperature high-pressure sampling valve used for deep sea

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Embodiment Construction

[0011] Further illustrate the present invention below in conjunction with accompanying drawing.

[0012] refer to figure 1 , the high-temperature and high-pressure sampling valve for deep sea of ​​the present invention includes a valve body 3 and a spring cavity 12 of a coaxial device, a baffle 8 is arranged between the valve body 3 and the spring cavity 12, and a liquid inlet is arranged on the valve body 3 5 and the liquid outlet 21, a support ring 4 and a valve sleeve 18 are installed in the valve cavity, a radial hole 22 communicating with the liquid outlet 21 is arranged on the support ring 4, and a radial hole 22 communicating with the liquid inlet 5 is arranged on the valve sleeve 18. To the hole 6, the valve sleeve 18 is provided with two O-rings 7, 20 along the circumference, the valve sleeve is equipped with a first valve core 19, and one end of the first valve core 19 has a second valve core 2 coaxial with it. , the other end passes through the baffle plate 8 and e...

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Abstract

The invention discloses a high-temperature high-pressure sampling valve used in deep water. The sampling valve mainly comprises a valve body, a valve housing, a first valve core, a second valve core, a spring cavity and a return spring. The invention has the two-way self-fastening sealing capacity due to the adoption of the structural manner of two valve cores, so that the sampling valve has excellent sealing performance under a high pressure. The sampling valve has superior high-temperature resistance and decay resistance, thereby improving the fidelity of thermal water samples. The sampling valve opens under linear driving, and closes automatically following the withdrawl of external driving force, thereby increasing the convenience of use in deep water.

Description

technical field [0001] The invention relates to a high-temperature and high-pressure sealing device, in particular to a high-temperature and corrosion-resistant deep-sea high-pressure sampling valve. Background technique [0002] Deep-sea hydrothermal vents are generally distributed on the seabed at a depth of 2,000 to 3,000 meters. The maximum temperature of the hydrothermal fluid can reach 400°C. Due to the high salinity and low pH value of the hydrothermal fluid, it is highly corrosive. The high temperature, high pressure and strong corrosive characteristics of hydrothermal fluids pose great challenges to the manufacture of suitable sampling equipment. In hydrothermal sampling equipment, the sampling valve is the most critical component for obtaining high-quality samples. It must not only have good sealing performance under high pressure, but also need high temperature resistance and corrosion resistance. Most of the commonly used high-temperature valves are made of stai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10
Inventor 杨灿军吴世军丁抗谢延青杨磊陈鹰
Owner ZHEJIANG UNIV
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