A device and method for measuring the performance of water-gas separation equipment based on step pulses

Abstract

A device and method for measuring the performance of water-gas separation equipment based on step pulses, including a water-gas separation module, a gas detection unit, and a sample injection control unit; the detection host is turned on, and the gas in the water-gas separation module is released under the action of a gas pump. Circulate in the pipeline; open the first rotary valve of the sample injection control unit, close the second rotary valve, under the action of gas partial pressure, the low-concentration methane solution entering the liquid chamber passes through the membrane structure, and the methane gas is separated into the In the gas chamber, the detection host detects the change of methane gas content; open the second rotary valve of the sample injection control unit, close the first rotary valve, and under the action of gas partial pressure, the high-concentration methane solution entering the liquid chamber passes through the membrane structure , the methane gas is separated into the gas chamber, and the detection host detects the change of the methane gas content; the response and equilibrium time are obtained through real-time data recording and calculation, the structure and operation are simple and practical, and it provides real-time, reliable reference.

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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