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Temperature control decoupling method for refrigeration assembly

A technology of temperature control and components, applied in aircraft parts, air handling equipment, transportation and packaging, etc., can solve the problems of affecting the outlet temperature of the compressor, affecting the same direction change of the outlet temperature of the refrigeration component, and the reverse change of the compressor outlet temperature, etc.

Active Publication Date: 2021-12-07
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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AI Technical Summary

Problems solved by technology

However, there is a strong coupling between the ram air valve and the temperature control valve in the control process. Adjusting the ram air valve will not only affect the outlet temperature of the compressor but also affect the temperature change at the outlet of the cooling assembly. Adjusting the temperature control valve of the assembly controls the outlet of the cooling assembly At the same time, the temperature will cause the reverse change of the outlet temperature of the compressor, and it is difficult to control the temperature by controlling the valve alone in the actual working process.

Method used

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  • Temperature control decoupling method for refrigeration assembly
  • Temperature control decoupling method for refrigeration assembly
  • Temperature control decoupling method for refrigeration assembly

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[0027] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...

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Abstract

The invention belongs to the design technology in the field of large aircraft environment control, and particularly relates to a temperature control decoupling method for a refrigeration assembly. The outlet temperature of the refrigeration assembly is controlled by airflow of two channels, so that strong coupling exists between the two channels. In order to decouple, one channel is set as a constant quantity, the other channel is a variable, a plurality of time periods are set, and a control period is found, so that the decoupling purpose is achieved, and the method can effectively control the temperature of the gas for a single variable, and is convenient and simple.

Description

technical field [0001] The application belongs to the design technology in the field of large aircraft environment control, and in particular relates to a decoupling method for temperature control of refrigeration components. Background technique [0002] Large aircraft refrigeration systems usually have two refrigeration components. The outlet temperature of the refrigeration components is controlled by two-stage temperature control. The ram air valve is used as the first stage to control the outlet temperature of the compressor, and the temperature control valve is used as the second stage to control the outlet temperature of the refrigeration assembly. However, there is a strong coupling between the ram air valve and the temperature control valve in the control process. Adjusting the ram air valve will not only affect the outlet temperature of the compressor but also affect the temperature change at the outlet of the cooling assembly. Adjusting the temperature control valv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D13/08
CPCB64D13/08B64D2013/0603
Inventor 王佳莉
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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