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Electric split four-wheel high-pressure dewatering air-circulation refrigerating system

A refrigeration system, split technology, applied in refrigerators, refrigeration and liquefaction, compressors using turbines, etc., can solve the problem that the cabin air is easily polluted by engine fuel, the manufacturing process of the four-wheel system is complicated, and the three-wheel system is condensed. It can avoid problems such as freezing and blockage of the cockpit, so as to avoid the air pollution of the cabin, reduce the processing difficulty, and reduce the boost ratio.

Active Publication Date: 2013-08-21
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since these systems mostly use engine bleed air, their performance is affected by the operating conditions of the engine, such as the two-wheel simple system; in addition, the two-wheel booster system can provide little cooling capacity when the ground is parked or low-speed flight [1] ; The three-wheel system is prone to freeze blockage of the condenser; the four-wheel system has complex manufacturing processes and difficult performance matching
In addition to the engine bleed air increasing the compensatory loss of system performance in the above system, the cabin air is easily polluted by engine fuel

Method used

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  • Electric split four-wheel high-pressure dewatering air-circulation refrigerating system
  • Electric split four-wheel high-pressure dewatering air-circulation refrigerating system
  • Electric split four-wheel high-pressure dewatering air-circulation refrigerating system

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Embodiment Construction

[0015] combine figure 1 Explain the working process of the system: the first-stage compressor (3) is connected with the high-speed motor (4), the ambient air (1) passes through the valve (2), is compressed in the first-stage compressor (3), and flows into the primary heat exchanger (5) On the hot side, the airflow enters the second-stage compressor (6) after cooling down, and the second-stage compressor (6), turbine (8) and high-speed motor (9) are coaxially connected, and the gas is further compressed and then flows into the secondary stage The hot side of the heat exchanger (7) cools down, expands in the turbine (8), reduces the pressure and temperature, and the output work is used to drive the second stage compressor (6). After the gas flows through the hot side of the regenerator (10), the hot side of the condenser (11), the water separator (12), and the cold side of the regenerator (10), it enters the turbine (13) to expand and cool down. The air passes through the cold ...

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Abstract

The invention discloses an electric split four-wheel high-pressure dewatering air-circulation refrigerating system and belongs to the technical field of aircraft environment control systems. Due to the fact that electrical gas guiding is adopted for the system, not only is pollution caused by gas guiding of an engine avoided, but also a compensatory loss of system performance is reduced. A four-wheel component is replaced by two two-wheel components, and thus performance is easier to match. The input power of a second-stage gas compressor (6) is ensured by the output work of a turbine (8) and the input work of a high-speed motor (8), the arrangement of the second-stage gas compressor (6) can reduce a high pressure ratio required by a first-stage gas compressor (3), and the system is easier to achieve. A gas compressor (16) ensures ram-air flow and the system can work under all weather conditions.

Description

technical field [0001] The invention relates to an electric split four-wheel high-pressure water-removing air circulation refrigeration system, which belongs to the technical field of aircraft environment control systems. Background technique [0002] The air cycle refrigeration system is a refrigeration cycle system commonly used in the current aircraft environmental control system. It is characterized by an integrated design that is environmentally friendly and can meet the needs of cabin pressurization, ventilation and cooling. According to the load driven by the cooling turbine, it is divided into two-wheel simple type (turbine / fan), two-wheel boost type (turbine / compressor), three-wheel type (turbine / compressor / fan) and four-wheel boost type ( turbine / turbine / compressor / fan). Since these systems mostly use engine bleed air, their performance is affected by the operating conditions of the engine, such as the two-wheel simple system; in addition, the two-wheel booster s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/10F25B11/02
Inventor 张兴娟杨春信杨涵柯鹏蒋家庆
Owner BEIHANG UNIV
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