anti-overflow device

An anti-overflow, air-tight cabin technology, applied in deicing devices, transportation and packaging, aircraft parts, etc., can solve the problems of unsatisfactory anti-icing effect and large area to be controlled, so as to improve the anti-freezing effect and avoid recrystallization Effect

Active Publication Date: 2021-08-03
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the treatment of overflow water / overflow ice on the outer surface of the wing, there is a large area to be controlled and the anti-icing effect is not ideal

Method used

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Embodiment Construction

[0031] The following description provides many different embodiments, or examples, for implementing various features of the invention. The elements and arrangements described in the following specific examples are only used to express the present invention in a concise manner, and are only used as examples rather than limiting the present invention.

[0032] An anti-overflow device such as figure 1 As shown, it includes a slit 30 arranged on the windward side of the wing, at least one airtight chamber 50, an exhaust pipe 90 and an injection port 100; the airtight chamber 50 is arranged below the slit 30; one end of the exhaust pipe 90 It extends into the airtight chamber 50, and the other end is connected to the ejection port 100; the ejection port 100 is set on the suction peak or the high wind speed surface of the area where there is no direct collection of liquid water on the aerodynamic surface.

[0033] The size of the flow direction of the slit 30 (that is, the width of...

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Abstract

The present invention is applicable to the technical field of anti-icing, and provides an anti-overflow device, which includes a slit arranged on the windward side of the wing, at least one airtight cabin, an exhaust pipe and an injection port; the airtight cabin is arranged on the side of the slit Below; one end of the exhaust pipe extends into the airtight chamber, and the other end is connected to the ejection port; the ejection port is set on the suction peak or the high wind speed surface of the area where there is no direct collection of liquid water on the aerodynamic surface. The invention provides slits on the windward side of the wing, combined with the air suction scheme for the wing in the artificial laminar flow control, sucks the overflow water into the airtight cabin under the slit, mixes the overflow water and gas, and then passes through the ejection port It is discharged, and the ejection port is set on the suction peak of the aerodynamic surface where there is no direct collection of liquid water or the surface with high wind speed, such as the maximum thickness of the wing, the discharged water droplets will no longer collide with the aerodynamic wall surface, avoiding the recurrence of water droplets At the same time, the gas discharged tangentially will not increase the resistance of the aircraft in flight, and will not adversely affect the aerodynamic performance.

Description

technical field [0001] The invention relates to the technical field of anti-icing, in particular to an anti-overflow device. Background technique [0002] Icing is one of the main causes of aircraft flight accidents. Icing on the leading edge of the wings and tail of the aircraft will lead to increased airfoil resistance, decreased lift, reduced critical angle of attack, and deterioration of maneuverability and stability, resulting in Serious flight accidents have received widespread attention and research. According to the different forms of energy used in anti-icing, it can be divided into mechanical anti-icing systems, electric pulse anti-icing systems, liquid anti-icing systems, hot air anti-icing systems and electric thermal anti-icing systems. The program is currently widely used. [0003] Anti-icing systems focus on aerodynamic surfaces directly impacted by droplets, such as the leading edge of an airfoil, but in some cases, such as high water content in clouds (ici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64D15/04B64D15/12B64D15/16
CPCB64D15/04B64D15/12B64D15/16
Inventor 胡站伟郭向东肖春华丁亮
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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