Water-gas separation device performance measuring device and method based on step pulse

Abstract

The invention discloses a water-gas separation device performance measuring device and method based on the step pulse. The device comprises a water-gas separation module, a gas detecting unit and a sample input control unit. By turning on a detecting main unit, under the effect of a gas pump, gas in the water-gas separation module circulates in a pipeline; by switching on a first rotating valve and switching off a second rotating valve of the sample input control unit, under the effect of gas partial pressure, a low-concentration methane solution entering a liquid cavity permeates through a membrane structure, methane gas is separated out to enter a gas chamber, and the detecting main unit detects the changes of the content of the methane gas; by switching on the second rotating valve andswitching off the first rotating valve of the sample input control unit, under the effect of gas partial pressure, a high-concentration methane solution entering the liquid cavity permeates through the membrane structure, methane gas is separated out to enter the gas chamber, and the detecting main unit detects the changes of the content of the methane gas; through real-time data, response and balance time is recorded and calculated, the structure and operation are simple, practicability is high, and real-time reliable reference is provided for deep sea in-situ gas detection.

Description

technical field [0001] The invention relates to the technical field of performance measurement of water-gas separation equipment, in particular to a performance measurement device and method for water-gas separation equipment based on step pulses. Background technique [0002] In order to further understand the laws of deep-sea marine geological deposition and the survival mechanism of marine microorganisms, marine in-situ gas monitoring has also entered the field of deep-water research from shallow water research, and deep-sea in-situ gas detection technology and equipment have gradually been widely used in related research; among them , Gas detection devices based on membrane technology occupy the vast majority of current deep-sea related equipment. The response and equilibrium characteristics of gas detection devices based on membrane technology to dissolved gases in water are two important indicators for judging the efficiency of the device. These two important The indic...

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Problems solved by technology

[0002] In order to further understand the laws of deep-sea marine geological deposition and the survival mechanism of marine microorganisms, marine in-situ gas monitoring has also entered the field of deep-water research from shallow water research, and deep-sea in-situ gas detection technology and equipment have gradually been widely used in related research; among them , Gas detection devices based on membrane technology occupy the vast majority of current deep-sea related equipment. The response and equilibrium characteristics of gas detection devices based on membrane technology to dissolved gases in water are two important indicators for judging the efficiency of the device. These two important The indicators determine the real-time and accuracy of the detection results; currently, there are few researches on the devices and methods for measuring the response and equilibrium time of the membrane device, and it is impossible to accurately judge the response and equilibrium characteristics of dissolved gases in water, which provides a great opportunity for in-situ gas monitoring in the ocean. It brings great inconvenience. Therefore, according to the needs of marine instrument research and development, this invention proposes a device and method for measuring the performance of water-gas separation equipment based on step pulses, which provides a reference for the real-time and accuracy of deep-sea in-situ gas detection.

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