Infrared inhibiting device for smoke extraction of gas turbines of ships

Abstract

The invention aims at providing an infrared inhibiting device for the smoke extraction of gas turbines of ships. The infrared inhibiting device comprises a heat pipe row, as well as an exhausting straight and bent pipe and an exhausting diffuser pipe which are connected mutually. The exhausting straight and bent pipe comprises a double-layered cylinder wall structure which comprises an inner wall and an external wall. A main flow area is formed in the inner wall and an injection area is formed between the inner wall and the external wall. The heat pipe row comprises heat pipes which are distributed in parallel mutually. The heat pipes comprise evaporation sections, conveying sections and condensation sections. The evaporation sections are arranged in the inner wall of the exhausting straight and bent pipe, the condensation sections is arranged in a cooling device and the conveying sections are connected with the evaporation sections and the condensation sections. The device has the advantages of simplicity in structure, convenience in use, good exhausting and cooling effects, uniformity in distribution of temperature fields of an exhaust outlet, few effects on incoming flow and obvious infrared inhibiting effects.

Description

technical field [0001] The invention relates to a smoke discharge device, in particular to a ship smoke discharge device. Background technique [0002] At present, due to the high exhaust temperature and large flow of the gas turbine, it is easy to cause personal injury and fire. Cooling the exhaust can avoid such damage, and more importantly, it can improve the working efficiency of the engine and improve the working condition of the engine. Therefore, it is necessary Cooling its exhaust gas can also play a very good role in inhibiting its outlet flow field. Traditional exhaust cooling methods include heat exchanger cooling, water spray cooling, mixed air supply cooling, and opening and ejection ports. But there are some problems and shortcomings in these methods, such as the double-layer pipe exhaust cooling device of patent No. ZL201020254064.1, which uses seawater to take away the heat in the exhaust gas. However, the device takes up a lot of space, and the cooling eff...

AI Technical Summary

Problems solved by technology

This device requires a lot of additional equipment, has a complex structure, takes up a lot of space, and has a large exhaust resistance. Water spray cooling is easy to cause corrosion on the back of the body, and it is easy to affect the internal flow field of the engine.

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