Air conditioning system for vehicle and ship in ultra-low temperature environment

Abstract

The invention relates to an air conditioning system for a vehicle and a ship in an ultra-low temperature environment, wherein an internal air conditioning system is sequentially connected with a refrigeration compressor, an air-cooled condenser, a liquid storage device, a drying filter and an expansion valve of an outdoor air conditioning system; the air-cooled condenser is formed by combining twoor more condensers in parallel; electromagnetic valves are installed at the inlet of any one or all condensers, and check valves are installed at the outlet of any one or all condensers; a cooling fan is controlled and connected by a variable-frequency motor; and the electromagnetic valves and the variable-frequency motor are both connected with an electric control box. The number of condensers participating in cooling of the air-cooled condenser can be adjusted through the combined action of the electromagnetic valves and the check valves; the cooling fan is adjusted in cooperation with thevariable-frequency motor; corresponding air cooling of an adjustable air-cooled area is achieved; cooling requirements of different external and internal environment changes of a vehicle and a ship are met; refrigeration use in a global environment can be achieved; and the application range is wide.

Description

technical field [0001] The invention relates to an air-conditioning system for vehicles and ships in an ultra-low temperature environment and a control method thereof, in particular to an air conditioner suitable for an ultra-low temperature environment for vehicles and ships. Background technique [0002] With the rapid development of the global economy, the demand for means of transportation is increasing, and its technical requirements are also getting higher and higher. Many high-tech electronic products are required. These devices not only generate high heat, but also require a stable, suitable working environment, which requires air conditioners to dehumidify and cool these cabins to meet the requirements of the working environment. The means of transport must also adapt to the environmental requirements of global work, especially in environments with relatively low ambient temperature (ambient temperature -25°C), the special airtight compartment of the means of transp...

AI Technical Summary

Problems solved by technology

The means of transport must also adapt to the environmental requirements of global work, especially in environments with relatively low ambient temperature (ambient temperature -25°C), the special airtight compartment of the means of transport cannot be directly connected to the outside atmosphere due to work needs, so it is required When the ambient temperature is generally -25°C, the air conditioner is still required to operate under refrigeration conditions to remove the heat emitted by the heating equipment in the cabin. Generally, the ambient temperature of industrial air conditioners under refrigeration conditions is generally above 0°C, which is not suitable for Airtight cabin refrigeration in global working environment, narrow application range

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