Air conditioner based on multi-cycle evaporative cooling technology

• Main Authors: ZOU DAYONG, CHEN LEI, CHEN SI, SHI JIAN, ZHAO FENGCHENG, QIAN BING, GUO SHUNCHENG
• Format: Patent
• Language: English
• Published: 14.01.2015
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

An air conditioner based on a multi-cycle evaporative cooling technology comprises an indoor unit and an outdoor unit. The indoor unit is provided with an evaporative cooling multi-cycle system. The evaporative cooling multi-cycle system is provided with a plurality of cascaded subsystems, wherein each subsystem is provided with an evaporating area and a heat exchange area. Vacuum loops are formed between the upper ends and the lower ends of the evaporating areas through vacuum pipes. At least one section of each vacuum loop is arranged in the corresponding heat exchange area. The evaporating areas are arranged in indoor unit air channels in the direction from the upstream of air flow to the downstream of the air flow. Temperature isolating knots are laid in the evaporating areas. The boiling points of coolants in the subsystems are lowered in sequence in the direction from the upstream to the downstream of the air flow. The first-stage subsystem heat exchange area is connected to an outdoor unit heat exchanger through a vacuum pipe. All the other heat exchange areas except the first-stage subsystem heat exchange area are connected with the previous stages of heat exchange areas through vacuum pipes. The indoor unit is provided with a cooling air channel and an inner fan, and the inner fan is arranged on the lower side of the cooling air channel. The cooling air channel is arranged on the outer side of the middle heat exchange area. Air temperature regulation with low energy consumption is achieved.