A kind of aircraft double-layer air-liquid skin heat exchange method
A technology of heat exchanger and fuselage skin, which is applied in the field of improvement of aircraft air-liquid heat exchange mode, can solve the problem of heat exchange capacity, poor cooling effect, large volume of air-liquid heat exchanger, and large fuel compensation of aircraft Loss and other problems, to meet the requirements of stealth performance, large heat exchange, and improve the effect of flight time
Inactive Publication Date: 2011-12-28
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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[0005] Disadvantages: The air-liquid heat exchanger has a large volume and a high height (usually greater than 100mm), and the ram air intake and ram air produce greater aerodynamic resistance to the aircraft, and the air in the ram air intake has a greater fuel impact on the aircraft compensat
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[0036] The present invention will be further described in detail through specific embodiments below.
[0037] The invention adopts the boundary layer heat dissipation technology integrated with the aircraft skin, and designs a double-layer air-liquid skin heat exchanger installed on the outer surface of the aircraft skin. The inside of the skin heat exchanger is a thermal fluid (65 coolant), the outer surface of the heat exchanger uses the relative velocity between the aircraft and the ambient air to cool the outer heat fluid; in addition, the inner surface of the heat exchanger and the outer surface of the aircraft skin form a gap of 5-10 mm, and the aircraft and the air are used again. The relative velocity of the ambient air cools the inner thermal fluid.
[0038] Workflow: The hot fluid (No. 65 coolant) coming out of the electronic equipment enters the "liquid inlet distribution main pipe [13]" through the "liquid inlet [3]", and then enters the independent fluid inlet pip...
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Abstract
An aircraft double-layer air-liquid skin heat exchange method belongs to the technical field of environmental control, is a new technology for reducing aircraft ram air volume and improving air-liquid heat exchange efficiency, and is a heat exchange method for single-layer air-liquid skin. improvement of. A double-layer air-liquid skin heat exchanger is installed on the outer surface of the fuselage skin, the air-liquid skin heat exchanger includes an outer surface (1), an inner surface (2), a liquid inlet conduit (3), a liquid outlet The conduit (4), the sealing ends (5), (6), the fuselage connecting part (10), leave a gap (11) between the inner surface (2) and the outer surface of the skin, and the outer surface (1) and Double-layer heat dissipation fins are installed between the inner surfaces (2), and the double-layer heat dissipation fins include inner-layer heat-dissipating fins (7), outer-layer heat-dissipating fins (8), and partitions (9) for the inner-layer heat-dissipating fins . Compared with the air-air skin heat exchanger, the method has higher heat transfer coefficient, larger heat exchange and better cooling effect; compared with the air-liquid heat exchanger, the air-liquid skin heat exchanger Using the surface layer heat dissipation technology integrated with the aircraft skin, the traditional ram air intake air cooling method is cancelled, the fuel compensation loss of the system to the aircraft is greatly reduced, and the flight time of the aircraft is improved; at the same time, it can meet the needs of the aircraft Stealth performance requirements.
Description
technical field [0001] The invention belongs to the technical field of environmental control, in particular to the improvement of the aircraft air-liquid heat exchange mode. Background technique [0002] At present, there are two kinds of technologies close to this patent in the environmental control system at home and abroad: [0003] 1) Air-liquid heat exchanger (abbreviation: air-liquid heat exchanger) - use ram air inlet to cool the thermal fluid from electronic equipment. At present, most aircrafts at home and abroad adopt this form . [0004] Advantages: The air-liquid heat exchanger and the ram air intake are simple in design and easy to coordinate and install on the aircraft. [0005] Disadvantages: The air-liquid heat exchanger has a large volume and a high height (usually greater than 100mm), and the ram air intake and ram air have a large aerodynamic resistance on the aircraft, and the air in the ram air intake has a large fuel load on the aircraft compensatory...
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Inventor 党晓民齐社红李荣军
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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