An air conditioner that can prepare cold or hot media and simultaneously handle air heat and humidity loads

Abstract

The invention relates to the technical field of air conditioning devices in civilian and industrial projects, in particular to an air conditioning device capable of manufacturing coolants or heating media and simultaneously treating air heat loads and humidity loads. The air conditioning device comprises a cold source or heat source unit and an air heat and humidity treatment unit, and the cold source or heat source unit is used for providing cold or heat for treating the air heat loads and humidity loads and simultaneously manufacturing the coolants or heating media which are output and use refrigerating fluid as a carrier. The air heat and humidity treatment unit can carry out cooling and dehumidification treatment or heating and humidification treatment on air. The cold source or heat source unit comprises a compressor, an expansion valve and refrigerating fluid circulating pipelines, the refrigerating fluid circulating pipelines comprise a first main pipeline, a second main pipeline, a third main pipeline and a fourth main pipeline, the first main pipeline is connected with the air heat and humidity treatment unit through a first refrigerating fluid input branch, the air heat and humidity treatment unit is connected with the input end of the compressor through the second main pipeline, a second refrigerating fluid input branch is directly connected with the outside, and refrigerating fluid flowing back from the outside flows into the second main pipeline through a second refrigerating fluid output branch.

Description

technical field [0001] The invention relates to the technical field of air-conditioning devices in civil and industrial projects, in particular to an air-conditioning device capable of preparing cold or heat medium and simultaneously processing air heat and humidity loads. Background technique [0002] Energy saving and emission reduction, and building a resource-saving society have become a very important task at present. The energy consumption of buildings accounts for about 30% of the energy consumption of the whole society, and the energy consumption of air conditioning systems accounts for 40-60% of the total energy consumption of buildings. Therefore, reducing the energy consumption of the central air-conditioning system has become an important direction of energy saving and emission reduction in my country. [0003] In addition, the direct cost of the air-conditioning system accounts for about 8-15% of the cost of civil construction projects, and also occupies 8-12% of...

AI Technical Summary

Problems solved by technology

However, the multi-connected air conditioner unit does not have the fresh air (air) processing function, so it is necessary to set up an independent fresh air system (also needs to be equipped with independent cold and heat sources), and the system structure is still relatively complicated; it is limited to the oil return problem of the compressor, and the long-term refrigerant delivery leads to efficiency. Significantly lower, and the cooling (heating capacity) of a single unit is limited, making this system only suitable for small and medium-sized buildings; in addition, there is also the problem of low energy efficiency ratio of multi-connected units

[0007] 3. Completely distributed air conditioners, mainly including split air conditioners and window air conditioners, have the best local adjustment performance, but there are two mechanical defects of no fresh air and low energy efficiency ratio of air conditioners

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