Gas quantitative blending and speed-controlled transmission method and device based on water-gas exchange technology

Abstract

The invention relates to a static gas distribution method and a matched apparatus thereof, and specifically relates to a gas quantitative blending and speed-controlled transmission method and device based on a water-gas exchange technology. The device comprises a rigid water storage container 3 (number for indication in the attached drawing, similarly hereinafter) provided with a sealing top cover 1 and a lower nozzle 5, the top cover is provided with an air pipe 2, a soft container 4 arranged in the water storage container 3 is arranged on the air pipe 2, the air pipe is used for introducing gas in / out of the soft container, and the lower nozzle is used for discharging / injecting water. Under a balanced pressure and a stable temperature, a certain volume of water 6 is discharged from or injected into the water storage container 3, thus the equal amount of gas is injected into or discharged out of the soft container 4, and the preparation and transmission of mixed gas are achieved. The advantages of the soft container static volume gas distribution method are preserved, and the method also has the advantages of high precision in the gas concentration, more gas production amount, and continuous gas transmission at a controllable speed.

Description

technical field [0001] The invention relates to a static gas distribution method and an applicable device thereof, in particular to a method and device for quantitative preparation and speed-controlled delivery of mixed gas based on water-gas replacement technology. Background technique [0002] Mixed gas preparation methods are divided into two categories: static method and dynamic method, and each category includes several gas distribution methods. According to the national standard GB / T 10248-2005 (equivalent to ISO 1664: 2003), the static volume method can be used for mixtures containing more than one calibration component in the equilibrium gas. Many laboratories often need a small amount of mixed gas with different component concentrations ready to use, and some experiments require the mixed gas to be delivered continuously or intermittently at a certain flow rate, such as the gas supply in cell culture vessels or their storage containers. It is recognized that the st...

AI Technical Summary

Problems solved by technology

However, at present, soft containers are used for gas mixing, and the raw material gas is generally injected into the container with a syringe. There are problems such as the airtightness of the syringe, the accuracy of the injection volume, and the limitation of the injection volume at one time.

Moreover, there is no solution for the continuous or intermittent delivery and speed control of the gas provided in the flexible container.

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