A control method for an aircraft ground air conditioning system

Abstract

The invention discloses a control method of an aircraft ground air-conditioning system, comprising the steps of: a control device collects the temperature of inlet frozen water and the temperature of outlet frozen water of a high-temperature stage compressor, and calculates the difference between the temperature of inlet frozen water and the temperature of outlet frozen water, Set as the first temperature difference; when the first temperature difference is less than the highest first temperature difference, the control device controls the high-temperature stage compressor to work, and the low-temperature stage compressor does not work; when the first temperature difference is greater than or equal to the highest first temperature difference When the start-up temperature difference within the range, the control device adjusts the working state of the high-temperature compressor according to the first temperature difference; when the first temperature difference is greater than or equal to the highest first temperature difference and greater than or equal to the start-up temperature difference, the control device controls the high-temperature compressor and the low-temperature Working at the same time; the control method disclosed in the present invention, the control device adjusts the working status of the high temperature compressor and the low temperature compressor according to the first temperature difference, which can effectively save the pump work required by the system and greatly improve the energy efficiency ratio of the air conditioning system.

Description

technical field [0001] The invention relates to the technical field of aircraft ground air conditioning, in particular to a control method for an aircraft ground air conditioning system. Background technique [0002] The direct expansion aircraft ground air conditioners used in existing airports, due to size and weight limitations, output less air volume, air pressure and cooling capacity, which is difficult to meet the comfort requirements of the ambient air in the cabin, reducing the comfort of passengers. Use experience; In addition, the direct expansion aircraft ground air conditioning has the problem of low energy efficiency. [0003] It can be seen that the prior art still needs to be improved and enhanced. Contents of the invention [0004] In view of the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a control method for an aircraft ground air-conditioning system. The control device adjusts the working states of t...

AI Technical Summary

Problems solved by technology

[0002] The direct expansion aircraft ground air conditioners used in existing airports, due to size and weight limitations, output less air volume, air pressure, and cooling capacity, which is difficult to meet the comfort requirements of the ambient air in the cabin and reduces the comfort of passengers. Experience; In addition, the direct expansion aircraft ground air conditioning has the problem of low energy efficiency

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