Centrifugal air conditioner unit with water as refrigerants and running method

Abstract

The invention relates to a centrifugal air conditioner unit with water as refrigerants and a running method. The centrifugal air conditioner unit comprises an evaporator, a compressor, a motor and a condenser which are arranged in a fully-closed container, and a first circulation channel which is arranged outside the container and used for allowing the condenser to supplement the refrigerant water to the evaporator. The evaporator can exchange heat with the outside world through the internal indirect contact heat exchange method when evaporating the refrigerant water circulated through a circulating pump of the evaporator. The compressor can suck in low-temperature vapor generated by the evaporator through the suction end under the drive of the motor, compress the low-temperature vapor, and then discharge the high-temperature vapor through the exhaust end. The condenser can convert the high-temperature vapor into the refrigerant water through the inner indirect contact heat exchange method. By means of the centrifugal air conditioner unit and the running method, flowing resistance between the compressor and the evaporator and between the compressor and the condenser can be reduced, pressure loss can be reduced, the energy efficiency ratio of the unit can be increased, and the size of the unit can be decreased.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a centrifugal air conditioner unit and an operation method using water as a refrigerant. Background technique [0002] Compared with other refrigerants, water is used as the refrigerant of centrifugal air-conditioning units. It has the advantages of safety, environmental protection, non-toxicity, non-flammability, low cost, easy access, and no need for oil circulation. It has great research value and market prospects. . [0003] At present, the main technical solutions adopted by centrifugal air conditioners using water as refrigerant are as follows: figure 1 As shown, two compressors are set in the compressor container 1a, the primary compressor 2a is driven by the primary compressor motor 4a, the secondary compressor 3a is driven by the secondary compressor motor 5a, the evaporator 7a and the condenser 6a They are connected by pipelines with throttling devices 9a, and communic...

AI Technical Summary

Problems solved by technology

However, the flow rate of water vapor in the pipelines connected between the compressor and the evaporator 7a, and the compressor and the condenser 6a is too high, resulting in an excessive pressure drop, which reduces the energy utilization efficiency of the unit, and the joint formed by these containers and pipelines The overall volume of the unit is large

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