Novel air-conditioning system

Abstract

The invention discloses a novel air-conditioning system, comprising a compressor, a condenser, an expansion valve, an evaporator, an air-conditioning water tank, an air-conditioning pump and a cooling tower. The evaporator is provided with an evaporator coil and an evaporator coil outer passage. The cooling tower comprises a water curtain wall and a reservoir. The reservoir is provided with common antifreeze solution and simultaneously the reservoir is provided with a water outlet to form a common antifreeze solution circulating system through an anti-corrosion pipeline, an anti-corrosion pump and a water inlet at the upper part of the water curtain wall. The air-conditioning system further comprises an exchanger coil for carrying out heat exchange with common antifreeze solution out of the exchanger coil. The exchanger coil is connected with a low-temperature antifreeze solution circulating system injected with low-temperature antifreeze solution through a pipeline, a primary pump and the evaporator coil outer passage. The invention is designed by combining the low ice point advantage of the low-temperature antifreeze solution and low cost advantage of the common antifreeze solution, can normally work so long so the external temperature is higher than the ice point temperature of the common antifreeze solution, and be featured with low energy consumption, convenience, practicality and wide application scope.

Description

technical field [0001] The invention relates to a heat pump type water central air-conditioning system, in particular to a novel air-conditioning system. Background technique [0002] The existing heat pump water central air-conditioning system mainly includes a compressor 1', a condenser 2', an expansion valve 3', an evaporator 4', an air-conditioning water tank 5' and a cooling tower 6'. Here, under the heating condition, the compressor outlet 11'→the condenser coil passage 22'→the expansion valve 3'→the evaporator coil 41'→the compressor inlet 12' is sequentially connected by pipeline 7 'Connect to form a refrigerant circulation system; outlet 51' of the air-conditioning water tank→water pump 8'→coil 21' of the condenser→inlet 52' of the air-conditioning water tank are connected in sequence with pipeline 10' to form an air-conditioning water circulation system; cooling tower outlet 61'→water pump 9'→coil outer channel 42' of the evaporator→cooling tower inlet 62'are conn...

AI Technical Summary

Problems solved by technology

At present, in terms of cost, antifreeze is divided into two types: one is low-temperature antifreeze with a freezing point lower than -20°C, which has the advantages of low freezing point and low corrosion resistance, and the disadvantage of high cost and easy Volatile; the other is ordinary antifreeze with a freezing point of -10°C~-20°C, such as alkaline water, salt water, etc., which has the advantage of low cost and is not easy to volatilize. The disadvantage is that the freezing point is high and has a large Corrosive

If the low-temperature antifreeze is used directly, because the low-temperature antifreeze will have a large amount of volatilization during the cooling tower cycle, this will lead to a large amount of low-temperature antifreeze consumed, and the high cost of use is simply unbearable

However, if ordinary antifreeze is used, the strong corrosiveness of antifreeze will cause great damage to the evaporator coil, which will double the service life of the evaporator and easily cause refrigerant leakage.

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