Dual cold sources airplane ground energy-conserving and environment-protective air-conditioning unit

Abstract

The invention relates to a dual cold sources airplane ground energy-conserving and environment-protective air-conditioning unit, which solves the problems of high energy consumption, parking apron occupation and high operating cost in prior airplane ground air-conditioning unit. The unit consists of a first air processing system and a second air processing system in compression refrigeration type;wherein, the first air processing system takes water supplied by a central air conditioner as heat transferring medium; the second air processing system in compression refrigeration type takes refrigerant as heat transferring medium. In the first processing system, a water-through heat exchanger is injected with water from the central air conditioner of airport lounges by a pump to carry out heatexchange with air from airport lounges or gallery bridge channel; the cooled air is transmitted into an engine room parked in the airport driven by a centrifugal fan (6) through a evaporator, an airoutlet hood (2) and an air supply tube (1); water after heat exchange by the water-through heat exchanger (7) is directly or through a double pipes heat exchanger to discharge into a water-storing system of the central air conditioner in airport lounges.

Description

Technical field: [0001] The present invention relates to aviation ground equipment, in particular to air conditioning units used by aircraft on the ground. Background technique: [0002] Now major airports use bridge-mounted, fixed or mobile air-conditioning units for the air treatment inside the ground aircraft. The bridge-mounted air conditioner unit is hoisted under the boarding bridge, and the unit and air supply hose move with the boarding bridge. The fixed air-conditioning unit is installed next to the fixed column of the boarding bridge, and the mobile air-conditioning unit can be moved to the parking position of the aircraft. [0003] 1. Defects in bridge-mounted air-conditioning units and installation methods: [0004] a. Because the unit is hung under the boarding bridge, limited by the water source, it cannot be made into a water-cooled unit, but can only be a forced air-cooled air conditioner. The weight of the unit with different cooling capacity is 3 to 5 ton...

AI Technical Summary

Problems solved by technology

[0013] a. Limited by the water source, the unit is a forced air-cooled air conditioner with a large volume and a weight of 5 to 8 tons. The selected chassis has a large carrying capacity, which increases the cost of the unit

[0014] b. Due to the large size of the unit, it occupies a certain area of ​​the aircraft stop and will cause unsafe factors to the aircraft and other supply vehicles

[0015] c. If the unit has its own generator set, it will cause a lot of noise on the apron, and the exhaust gas emitted by the generator set will cause environmental pollution at the airport, which will affect the normal take-off and landing of the aircraft in severe cases

[0016] d. If the unit does not have its own generator set, it needs an external power supply. According to the parking position of the aircraft, the cables required are long, and the cables are extremely inconvenient to retract and unwind, and cause certain obstacles and unsafe factors to passing vehicles.

[0017] e. The energy consumption of the unit is high, the air supply hose is long, the temperature rises 5-7°C, the noise is loud, and the condensed water discharge is inconvenient, causing environmental pollution on the apron

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