Direct refrigeration type magnetic suspension frequency-variable air conditioning unit

A frequency conversion air conditioner and magnetic levitation technology, which is applied in air conditioning systems, heating methods, mechanical equipment, etc., can solve the problems of poor variable load adjustment capacity of chilled water systems, low load energy efficiency of pipeline chillers, and low comprehensive energy efficiency ratio. Flexible adjustment, reduced energy consumption, and high overall energy efficiency ratio

CN111189108APending Publication Date: 2020-05-22TONGFANG ARTIFICIAL ENVIRONMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-05-22

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Abstract

The invention provides a direct refrigeration type magnetic suspension frequency-variable air conditioning unit, and relates to the technical field of refrigerating air conditioners. The unit comprises a compressor, a shell-tube type condenser, a throttling device and an air conditioning cabinet, wherein all the parts are sequentially connected to form a circuit. Heat of the shell-tube type condenser is exhausted outdoors through a cooling tower. The air conditioning cabinet sequentially comprises an air inflow section, a filter section, a cooling section and an air supply section from bottomto top. The unit is structurally characterized in that the magnetic suspension frequency-variable centrifugal compressor is adopted as the compressor, a direct evaporation type heat exchanger is arranged on the cooling section of the air conditioning cabinet, and a frequency-variable centrifugal fan is arranged on the air supply section of the air conditioning cabinet. Compared with the prior art,the unit can be flexibly adjusted according to the building load change, the energy efficiency of a refrigerating system can be improved, the structure of the system is simplified, and the operatingcost of an air conditioning system is reduced.
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Description

technical field

[0001] The invention relates to the technical field of refrigeration and air conditioning, in particular to a direct refrigeration type magnetic levitation frequency conversion air conditioning unit. Background technique

[0002] At present, in the ventilation and air conditioning system of large public building space, the form of chiller + air conditioning box terminal is often used for cooling and dehumidification. see figure 1 , This system includes a compressor 1, a shell-and-tube condenser 2, a throttling device 3, a shell-and-tube evaporator 4, and an air-conditioning box 6 that are sequentially connected to form a loop. The heat of the shell-and-tube condenser 2 is discharged to the outside through the cooling tower 7. The compressor 1 adopts a screw compressor. The cooling section is equipped with a surface cooler, and the air supply section is equipped with a centrifugal fan. The shell-and-tube evaporator 4 is connected to the surface cooler in th...

Examples

Embodiment Construction

[0013] see figure 2 , The direct refrigeration type magnetic levitation frequency conversion air conditioner unit of the present invention comprises a compressor 1, a shell-and-tube condenser 2, a throttling device 3 and an air conditioning box 6 which are sequentially connected to form a loop. The heat of the shell-and-tube condenser 2 is discharged to the outside through the cooling tower 7, and the compressor 1 adopts a magnetic levitation frequency conversion centrifugal compressor. The air conditioning box 6 includes an air inlet section, a filter section, a cooling section and an air supply section from bottom to top. The cooling section of the air conditioning box 6 is equipped with a direct evaporative heat exchanger, and the air supply section is equipped with a frequency conversion centrifugal fan.

[0014] When the unit of the present invention is working, the return air (outdoor air or mixed air) enters from the air inlet section of the air-conditioning box 6, and...