Device for adjusting and controlling dissolved gas saturation in water under different pressure intensities

A technology of dissolved gas and pressure, used in high-precision control devices, long-term fields

Pending Publication Date: 2018-01-23
PEKING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to adjust the saturation of dissolved gas in water under different pressures and maintain it for a long time with existing equipment.

Method used

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  • Device for adjusting and controlling dissolved gas saturation in water under different pressure intensities
  • Device for adjusting and controlling dissolved gas saturation in water under different pressure intensities
  • Device for adjusting and controlling dissolved gas saturation in water under different pressure intensities

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0029] In this application, "top" refers to a certain spatial position located above the entire space in the container (such as a closed water storage tank). Generally speaking, it needs to be located above the liquid after the closed water storage tank is filled with liquid; Generally speaking, a certain spatial position below the space in the container (such as the closed top water storage tank) needs to be located below the liquid after the closed water storage tank is filled with liquid.

[0030] In view of the fact that the existing technology is difficult to adjust the saturation of dissolved gas in water under different pressures and maintain it for a long time, the embodiment of the present invention is to provide ...

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Abstract

The invention discloses a device for adjusting and controlling dissolved gas saturation in water under different pressure intensities. The device comprises a closed water storage tank, a liquid circulation module, a test observation module, a pressure module, a dissolved gas concentration measurement module, a gas circulation module and a water tank height adjusting module, the liquid circulationmodule provides circulation liquid for the closed water storage tank, the test observation module comprises a test table for placing samples, the test observation module is connected with the water storage tank and the liquid circulation module, the pressure module is used for measuring and adjusting gas pressure intensity and arranged at the top of the closed water storage tank, the dissolved gasconcentration measurement module is used for measuring the oxygen content in liquid in the closed water storage tank, and the gas circulation module is connected with the top and the bottom of the closed water storage tank through pipelines, so that air of the top of the closed water storage tank is pumped into liquid of the bottom of the water storage tank. According to the device, the dissolvedgas saturation in the water is adjusted and controlled, gas pressure intensity of the upper portion of the water surface is adjusted by the pressure module, relative liquid level and relative heightof the samples are adjusted by the water tank height adjusting module, and the device controls saturation states to keep stable or change.

Description

technical field [0001] The invention relates to the technical field-the field of flow field control, in particular to a device for long-term and high-precision control of the dissolved gas saturation of water in the flow field under the condition that the ambient pressure can be adjusted. Background technique [0002] In order to study the influence of the dissolved gas saturation in water (the ratio of the current dissolved gas concentration in water to the saturated state concentration) on the wetting characteristics of micro-nano surface structures under different pressures, it is necessary to quantitatively control the water under constant pressure (decompression). Dissolve gas saturation and keep the saturation stable for a long time. Under normal circumstances, the dissolved gas in water always tends to reach the dissolved saturation state: when the dissolved gas saturation is less than 1 (that is, the dissolved gas is not saturated), the gas in contact with water tend...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/00
Inventor 段慧玲相耀磊吕鹏宇黄晟林
Owner PEKING UNIV
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