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Aircraft cabin temperature control system

A technology of temperature control system and temperature control valve, which is applied in the field of aircraft cabin temperature control system, can solve the problems of poor control accuracy, unstable cabin temperature control, and slow response speed, so as to reduce the coupling type and ensure the cooling and heating capacity of the system , the effect of improving stability

Active Publication Date: 2018-04-10
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology

[0003] The technical problem solved by the present invention: the present invention provides an aircraft cabin temperature control system, which mainly solves the problems of unstable cabin temperature control, poor control accuracy, and slow response speed

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Embodiment Construction

[0027] The technical solution will be further described in detail below in conjunction with the embodiments.

[0028] An aircraft cabin temperature control system, the system includes a cockpit, a three-wheel high-pressure water removal system, a temperature control valve, a cold air duct regulating valve, a cabin air supply pipeline temperature sensor, a cabin temperature sensor, a compressor outlet temperature sensor, and a ram air Flow sensor and system controller, the cabin air supply pipeline temperature sensor is installed at the outlet of the cabin air supply pipeline, the cabin temperature sensor is installed inside the cabin, the compressor outlet temperature sensor is installed at the compressor outlet, and the ram air flow sensor is installed in the cold air duct At the outlet of the regulating valve, the cold air passage regulating valve is installed in the ram air passage of the three-wheel high-pressure water removal system, and a temperature control valve is inst...

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Abstract

The invention belongs to the technical field of aircraft cabin temperature control and relates to an aircraft cabin temperature control system. The system comprises a cockpit, a three-wheel high-pressure water removal system, a temperature control valve, a cold air duct adjusting valve and a system controller, wherein the cold air duct adjusting valve is installed in a ram air passage of the three-wheel high-pressure water removal system, and the temperature control valve is installed in a pipeline for directly communicating an outlet of an engine bleed system with a gas supply pipeline of the cockpit. The aircraft cabin temperature control system is characterized in that a ram air flow sensor is installed at the outlet end of the cold air duct adjusting valve, and signals acquired by the ram air flow sensor are transmitted to the system controller. The control system adopts the ram air flow as a controlled object; by fixing the ram air flow, the heat exchange state of the system is stabilized, and refrigerating and heating capacities of the system are ensured; and temperature adjustment of double execution mechanisms of the system is changed to control of the single temperature control valve. The system control coupling is greatly reduced, and the system control stability is improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft cabin temperature control, and relates to an aircraft cabin temperature control system. Background technique [0002] With the development of large aircraft, the development of aircraft environmental control system tends to be characterized by high system integration, high control precision and high degree of automation. At the same time, due to the complex task mode, drastic changes in the state of bleed air and ram air in the environmental control system, and the large-capacity characteristics of the cockpit, the cockpit temperature control system is doomed to be a typical multi-input-multi-output complex thermodynamic system with large hysteresis and strong coupling. To solve this problem at home and abroad, most of them use the cold air channel regulating valve to control the outlet temperature of the compressor, and the temperature control valve to control the air supply temperature of the c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64D13/08
CPCB64D13/08
Inventor 任明波李荣军王佳莉
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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