Spray cooling device of high-temperature exhaust system
An exhaust system, spray cooling technology, applied in the direction of exhaust device, muffler device, engine cooling, etc., can solve the problems of short contact time, small exhaust contact area, large diameter, etc., to slow down the corrosion rate and prolong the use. Longevity, effect of lowering temperature
Active Publication Date: 2021-11-12
NO 719 RES INST CHINA SHIPBUILDING IND
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Problems solved by technology
The diameter of the spray water droplet is relatively large (the average droplet diameter is greater than 100 μm), the contact area with the exhaust gas is small, and the contact time is short, which is not conducive to rapid cooling of the exhaust gas
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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0021] In the present invention, unless otherwise clearly specified and limited, terms such as "set", "install", "connect", "connect", and "fix" should be understood broadly from the perspective of those skilled in the art, for example , can be a fixed connection, can also be a detachable connection, or integrated; can be directly connected, can also be indirectly connected through an intermedia...
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The invention belongs to the technical field of engine exhaust pipeline corrosion prevention and exhaust cooling, and provides a spray cooling device for a high-temperature exhaust system, which comprises a nozzle, a double-cylinder spray tank and a control box, a working cavity A and a working cavity B are formed in the double-cylinder spray tank, the working cavity A and the working cavity B are each provided with a liquid level sensor and a pressure sensor, each working cavity is provided with four pipeline interfaces which are respectively connected with a cooling water supply pipeline, a spraying pipeline, a compressed air supply pipeline and a deflation pipeline, the pipelines are respectively provided with corresponding electromagnetic valves, the electromagnetic valves are all connected with the control box, the cooling water supply pipeline is connected with a diesel engine seawater system through a seawater filter, the compressed air supply pipeline is connected with a medium-pressure air system, the spraying pipeline is connected with the nozzle, and the nozzle is arranged in a device body. According to the device, high-temperature exhaust and exhaust pipeline systems are cooled through high-pressure spray, corrosion of exhaust system pipelines is relieved, accumulated water in the nozzle is blown away through compressed air, and the corrosion path of the nozzle is blocked.
Description
technical field [0001] The invention belongs to the technical field of engine exhaust pipeline anticorrosion and exhaust cooling, and in particular relates to a spray cooling device for a high-temperature exhaust system. Background technique [0002] Under the joint influence of sea humidity, salt spray, alternating wet and dry environments and high-temperature exhaust from marine engines, the corrosion of the exhaust pipe is obviously more serious than other parts. If no measures are taken, the exhaust pipe is prone to rust and holes. Destroy the airtightness of the exhaust pipe and affect its use. Among the factors affecting the corrosion rate, temperature is the most important factor. The exhaust temperature of marine engines (diesel engines or gas turbines) is usually very high. Reducing the exhaust temperature is an important means to inhibit the corrosion rate of exhaust pipes and related accessories and prolong the service life of exhaust pipes. For this purpose, sp...
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IPC IPC(8): F01N3/04F01P11/06
CPCF01N3/04F01P11/06F01P2011/063F01P2011/066
Inventor 邓鹏程良奖孙春鹏张德满李斌舒鑫王博王英伟石兆存
Owner NO 719 RES INST CHINA SHIPBUILDING IND