Air conditioner for vehicles and ships at ultra-low temperature environment

Abstract

The invention relates to an air conditioner for vehicles and ships at an ultra-low temperature environment. An indoor unit is sequentially connected with a refrigeration compressor, an air-cooled condenser, a liquid accumulator, a drying and filtering device and an expansion valve of an outdoor unit; the air-cooled condenser is formed by combining more than two condensers in parallel; electromagnetic valves are arranged at the inlets of any one condenser or all the condensers; one-way valves are arranged at the outlets of any one condenser or all the condensers; a cooling fan is controlled by and connected with a variable frequency motor; and the electromagnetic valves and the variable frequency motor are connected with an electric control cabinet. The number of the condensers participating in cooling of the air-cooled condenser can be adjusted through the combined action of the electromagnetic valves and one-way valves, and the cooling fan is adjusted through the coordination of the variable frequency motor so that corresponding air cooling in an adjustable air cooling area is satisfied so as to meet the cooling requirements for the variation of different outer environments and inner environments in which the vehicles and ships are positioned, the refrigeration use in a global environment can be satisfied, and the usable range of the air conditioner is wide.

Description

technical field [0001] The invention relates to an air conditioner for vehicles and ships, in particular to an air conditioner suitable for ultra-low temperature environments 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 transport cannot be directly connected to the outside atmosphere due to work needs, s...

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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