High-tight carbon dioxide distillation and purification device, control system and method

Abstract

The invention belongs to the technical field of carbon dioxide rectification and purification, and discloses a high-leakproofness carbon dioxide rectification and purification device and a control system and method. A raw material air source pump is connected with a gas purifier through a guide pipe, the gas purifier is connected with a gas liquefier through a guide pipe, and the gas liquefier is connected with a condenser; the upper end of the condenser is provided with a condenser upper cover, the lower end of the condenser is provided with a reboiler, the reboiler is connected with a carbon dioxide air storage tank through a guide pipe, the carbon dioxide air storage tank is connected with a cryopump body through a guide pipe, and the cryopump body is connected with a gas cavity through a guide pipe; the lower end of the gas cavity is provided with a second solenoid valve, the second solenoid valve is connected with a cryopump body inlet through a guide pipe, and the gas cavity is connected with a filler through a guide pipe. The high-leakproofness carbon dioxide rectification and purification device and the control system and method have the advantages that the arranged gas purifier can adsorb and purify the gas to remove rectificated gas in the gas; the upper end of the condenser is provided with a gas outlet, and the unliquefied gas is transferred to other systems for treatment.

Description

technical field [0001] The invention belongs to the technical field of carbon dioxide distillation and purification, and in particular relates to a highly airtight carbon dioxide distillation and purification device, control system and method. Background technique [0002] At present, the commonly used existing technologies in the industry are as follows: industrial production, especially thermal power generation, will emit a large amount of carbon dioxide and heat. Carbon dioxide is a greenhouse gas that will cause certain damage to the environment, and direct heat emission will also cause certain waste. These carbon dioxide and heat can be used to save energy and reduce emissions. However, in the gas liquefaction process of the existing carbon dioxide rectification and purification device, it is easy to be mixed with unliquefied gas, which affects the subsequent filling; The gas adsorption and purification is not complete, which affects the purity of carbon dioxide. At t...

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Problems solved by technology

[0004] (1) During the gas liquefaction process of the existing carbon dioxide distillation and purification device, it is easy to be mixed with unliquefied gas, which affects the subsequent filling

[0005] (2) In the process of carbon dioxide distillation and purification, the existing carbon dioxide distillation and purification device does not completely absorb and purify the doped gas, which affects the purity of carbon dioxide

[0006] (3) During the carbon dioxide filling process of the existing carbon dioxide distillation and purification device, due to the excessive impact force generated by the liquefied gas, it is easy to cause the liquefied gas to overflow and affect the safety of filling

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