Gas-liquid separation device and gas-liquid separation method for gas-phase molecular absorption spectrometer

Abstract

The invention provides a gas-liquid separation device for a gas-phase molecular absorption spectrometer. The gas-liquid separation device is characterized by comprising a gas-liquid separation unit and a liquid collection unit, wherein the gas-liquid separation unit comprises a fluid input port, a gas outlet and a liquid outlet; the liquid collection unit is communicated with the liquid outlet and comprises an atmosphere regulation and control port and a waste liquid discharge port; and the atmosphere regulation and control port is communicated with the atmosphere, and a closing mechanism is arranged at the opening position of the atmosphere regulation and control port. By modifying the separation structure, the efficiency of the gas-liquid separator in the separation process is improved.

Description

technical field [0001] The invention relates to an element or an action unit contained in an analysis instrument, in particular to a gas-liquid separation device and a gas-liquid separation method for a gas-phase molecular absorption spectrometer. Background technique [0002] The gas-liquid separator is a core device in the gas-phase molecular absorption spectrometer. Its purpose is to effectively separate gas and liquid. The more thorough the separation, the more powerful it is for subsequent determinations, especially for low concentration determinations. There is an efficiency problem in the middle. The higher the efficiency of gas-liquid separation, the closer the detection result is to reality. [0003] In addition, for the gas-phase molecular absorption spectrometer, the separated gas is the measured object, and a reasonable pressure is required to make it be introduced into the forward colorimetric tube as quickly, smoothly and effectively as possible. [0004] A...

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Problems solved by technology

A part of the gas in the middle will be discharged together when there is no time to separate, which will result in the collected gas being less than the result of the actual reaction to obtain the gas, which will lead to inaccurate results

[0006] 2. Due to the existence of the air pressure balance port in the existing equipment, the gas in the pipeline corresponding to the gas released through the gas outlet is under low pressure, so the gas cannot be quickly and effectively input into the front colorimetric tube. result

It may even cause gas fouling, further reducing the efficiency of gas-liquid separation

[0007] Due to the above defects, in the prior art, when the gas-liquid separation efficiency is low, when measuring at low concentration and ultra-low concentration, the concentration of the gas to be measured is insufficient, which affects the sensitivity of the instrument, the detection limit and other important indicators

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