Deep-condensation vocs recovery system using air as refrigerant
AssigneeNanjing Tech University
InventorsXiang LING, Dongren LIU
Life of this patent
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Abstract
A high-efficiency low-cost deep-condensation VOCs recovery system uses air as refrigerant. The recovery system includes a gaseous air purification system, an air liquefaction system and a VOCs recovery cold box. The gaseous air purification system includes an air filter, a cold dryer and an air purifier; the air liquefaction system comprises an air compressor, an air storage tank, a turbo-expander and an air precooler. The VOCs recovery cold box includes a VOCs precooler, a VOCs condenser and a gas-liquid separator.
Claims11
A deep-condensation VOCs recover system using air as refrigerant, comprising a gaseous air purification system, an air liquefaction system and a VOCs recovery cold box;
- the gaseous air purification system comprises an air filter, a cold dryer and an air purifier;
- the air liquefaction system comprises an air compressor, an air storage tank, a turbo-expander and an air precooler;
- he VOCs recovery cold box comprises a VOCs precooler, a VOCs condenser and a gas-liquid separator, the VOCs recovery cold box is provided with the air precooler and the turbo-expander, and the interlayer of the shell of the VOCs recovery cold box is filled with powder and vacuumized to achieve the purpose of heat insulation;
- the cooling medium of the VOCs is used as liquefied air to realize deep-condensation recovery of the VOCs gas;
- firstly, air enters the air filter to remove microparticles and impurities contained in the air;
- the outlet of the air filter is connected with the inlet of the air compressor, and the outlet of the air compressor is connected with the inlet of the air storage tank;
- and the preliminarily purified air is compressed by the air compressor and enters the air storage tank for storage.
2-4. (canceled)
Dependencies are inferred from the claim text.