Closed circulating cooling system in high-voltage frequency converter cabinet

• Main Authors: CHEN GUANG, QI LIANG, WANG XU, PAN JIAKE, CHUNG HUA, YU TAO, CHEN JIANGHONG, XIAO ZHIMING, LIAO XIAOHUI, CHEN SHANGWEN
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2022
• Subjects: BLASTING; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION OR COOLING; REFRIGERATORS; WEAPONS

The utility model discloses a closed circulating cooling system in a high-voltage frequency converter cabinet. The closed circulating cooling system comprises a box body; the high-voltage frequency converter and the first emergency air valve are arranged in the box body; the high-voltage frequency converter is arranged at one end of the emergency air valve; the forced cooling fan is arranged at the upper end of the box body; the air-water cooling device is arranged in the box body, and the air-water cooling device is arranged on one side of the first emergency air valve; the second emergency air valve is arranged above the air-water cooling device; the drainage air duct is arranged between the air-water cooling device and the forced cooling fan; wherein an air inlet of the high-voltage frequency converter is communicated with an air outlet of the air-water cooling device; an air outlet of the high-voltage frequency converter is communicated with an air inlet of the forced cooling fan; one end of the drainage