Novel energy-saving air conditioning system

Abstract

The invention relates to a novel energy-saving air conditioning system which comprises an indoor unit arranged indoors and used for cooling a main machine and an outdoor unit arranged outdoors and used for dissipating heat, wherein the outdoor unit is connected with the indoor unit through a pipeline. Two heat dissipation systems are arranged in the outdoor unit, one heat dissipation system is a natural cold heat dissipation system composed of a fan and an evaporator, the other heat dissipation system is a mechanical cold heat dissipation system composed of a compressor, a condenser and a throttling device, and the two heat dissipation systems are connected through an intermediate heat exchanger. The novel energy-saving air conditioning system can adaptively operate in three operation modes of a 'natural cold mode ', a 'mixed refrigeration mode' and a 'mechanical cold mode 'according to outdoor environment temperature changes; in the mode switching process, no action of a mechanical valve exists, natural cold sources are fully utilized while the refrigeration requirement is met, the refrigeration energy efficiency of an air conditioner is improved, and the reliability requirement for continuous refrigeration of the indoor environment is met.

Description

technical field [0001] The present application relates to the field of refrigeration equipment, in particular to a novel energy-saving air-conditioning system. Background technique [0002] With the continuous development of informatization, the demand for data processing is also increasing. The high-density equipment in the computer room of the data processing center will generate a lot of heat. If the heat is not dissipated in time, the equipment in the data processing center will seriously affect the work due to the high ambient temperature. Performance, so the data processing computer room often needs a special air conditioning system to maintain a suitable temperature in the computer room. [0003] The invention patent with the notification number CN103344016B discloses an energy-saving air conditioner for a machine room, including an evaporator installed in the machine room, a first condenser, a second condenser, a compressor, and an intermediate heat exchanger install...

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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that this kind of energy-saving air conditioner for computer rooms has the following defects. In the simultaneous cooling mode of the heat pipe heat exchange cycle and the compressor, since the temperature of the intermediate heat exchanger is lower than the temperature of the first condenser, more A proportion of the refrigerant will enter the intermediate heat exchanger for heat exchange, resulting in a small proportion of refrigerant that dissipates heat through natural cooling in this mode, and the energy-saving effect needs to be improved; Heater and the first condenser are mixed, and the compressor must ensure that the state of the refrigerant after mixing meets the system design requirements, so the compressor’s refrigerating output is also affected by the heat dissipation conditions and heat dissipation ratio of the first condenser, so in this mode There will be delays and large fluctuations in the adjustment of the refrigeration output of the compressor, and the system is not easy to stabilize

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