Pressure regulation system of ultra-low temperature refrigerating device

• Main Authors: HE QINYUE, XU GUOPING, PAN FUJIN, HONG GUOMIN, SHEN MALONG
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2010
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

The invention discloses a pressure adjusting system for an ultralow-temperature refrigerator, which is characterized in that the system is composed of a balance tank (3), a pressure controller (6), solenoids (1, 5), and throttling elements (2, 4), wherein the balance tank (3) is connected with the high-pressure end and the low-pressure end of a compressor through the solenoids (1, 5) and the throttling elements (2, 4); and the pressure controller (6) is arranged on the high-pressure portion of a refrigerating system. The pressure adjusting system for an ultralow-temperature refrigerator formed according to the above scheme can reduce the ratio of low-boiling-point work medium participating in the circulation on the initial operation stage of the refrigerating system, and gradually increase the circulation amount of the low-boiling point work medium along the decrease of the system temperature, thus achieving continuous temperature decrease. On one hand, the system can prevent the occurrence of compressor faul