Anti-icing and deicing device and method for wings and emages of turbo-prop aircraft

Abstract

The invention relates to an anti-icing and deicing device and method for wings and emages of a turbo-prop aircraft, the device comprises a system close loop, a TKS fluid reservoir heating loop, an anti-icing and deicing heat transfer loop heat pipe, a distributed loop heat pipe and a TKS deicing mechanism, wherein the system close loop, the TKS fluid reservoir heating loop and a heat transfer loopshare a set of heat transfer evaporator (1), in an anti-icing state, the TKS fluid reservoir heating loop, the anti-icing and deicing heat transfer loop heat pipe and the distributed loop heat pipe work; in a deicing state, the TKS deicing mechanism works. Compared with the prior art, the TKS system deicing efficiency is improved greatly, the icing phenomena of the wings and the emages are reduced, the flight stability of the aircraft is ensured, and the system safety is reliable; waste heat of an exhaust pipe is taken as a heat source, and the energy comprehensive utilization ratio of a single turbo-prop aircraft is improved.

Description

Technical field [0001] The invention relates to an aircraft anti-icing and deicing technology, in particular to an anti-icing and deicing device and method for the wing and tail of a turboprop aircraft. Background technique [0002] With the continuous advancement of propeller technology, the propulsion efficiency of turboprop aircraft has been greatly improved, the noise level has been greatly reduced, and the ride comfort has been comparable to that of turbofan aircraft. At the same time, the turboprop aircraft has good runway adaptability and can take off and land on runways such as sand, gravel, grass, etc. The slipstream of the propeller can greatly improve the aircraft’s take-off / landing performance, allowing a shorter take-off / landing distance Therefore, turboprop aircraft has always been a common type of military aircraft. In addition, turboprop aircraft are also commonly used models for elementary and intermediate trainers and reconnaissance / attack drones due to their g...

AI Technical Summary

Problems solved by technology

[0006] 1. Deicing-boot deicing technology, its main deficiencies are: (1) It is easy to form an ice bridge on the deicing boot

(2) If the design of the deicing boot is not reasonable, it is easy to form an ice ridge behind the deicing boot, disturbing the airflow of the wing

Its main disadvantages are: (1) The TKS fluid carried is limited, and it cannot be used for anti-icing and de-icing at any time. Generally, it can only provide about 2 hours of use time

(2) The price of TKS liquid is expensive, which cannot satisfy the good economy

Its main disadvantages are: (1) It can only de-ice the leading edge of the wing, not enough to de-ice the entire wing surface

(2) When the calorific value is insufficient, the leading edge of the wing will freeze again to form an ice tumor, and the ice tumor will cause a surge in drag and a decrease in lift.

[0012] However, there are still some disadvantages in the application of the loop heat pipe to the single-engine turboprop aircraft: (1) When the aircraft performs maneuvers, the loop heat pipe will experience unfavorable acceleration and change the tilt angle, which may cause the cooling liquid of the loop heat pipe to decrease or cannot return The evaporator, in severe cases, may cause the internal core of the evaporator to dry up, and the loop heat pipe cannot conduct heat normally

(2) The anti-icing and de-icing of aircraft wings and tail requires a lot of heat, and a single loop heat pipe is not enough to provide such a high level of power

[0015] TKS technology also has some defects: (1) The carrying amount of TKS liquid is limited, and it is necessary to consider whether the flight plan allows flight within the anti-icing and de-icing time

(2) It is difficult to control the opening time of TKS equipment. If it is opened too early, it will cause waste of TKS liquid

If it is turned on when the wings are already frozen, the rate of TKS liquid penetration into the ice is not very fast, and it cannot be deiced as quickly as the deicing jacket, which may prolong the deicing time and increase the risk of aircraft damage due to icing. possibility of accident

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