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Large two-stroke diesel engine with exhaust gas scrubber

A diesel engine, two-stroke technology, applied in the direction of machines/engines, engine components, combustion engines, etc., can solve the problems of fuel consumption, large energy, etc.

Active Publication Date: 2010-10-13
曼能解决方案(曼能解决方案德国股份公司)分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The total amount of energy required to pump this amount of seawater up to the exhaust scrubber (where the exhaust gas is located) located on the upper part of the ship is very large and has a significant negative impact on specific fuel consumption

Method used

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  • Large two-stroke diesel engine with exhaust gas scrubber
  • Large two-stroke diesel engine with exhaust gas scrubber
  • Large two-stroke diesel engine with exhaust gas scrubber

Examples

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Embodiment Construction

[0017] In the following detailed description, the invention will be described by way of preferred embodiments. figure 1 A diagram representing a crosshead large turbocharged two-stroke diesel engine 1 with an intake and exhaust system is shown. The engine 1 has a charge air receiver 2 and an exhaust gas receiver 3 . The exhaust valve belonging to the combustion chamber is indicated by 4 . For example, the engine 1 may be used as a main engine in a marine vessel or as a stationary engine for operating a generator in a power station. The total output of the engine may for example be in the range of 5,000 to 110,000 kw. The engine 1 is operated on heavy fuel oil and is therefore provided with a heavy fuel oil system comprising a heated heavy fuel oil tank and a heated heavy fuel oil piping system (not shown). Since heavy fuel oil is extremely viscous at ambient temperature, these heated elements of the fuel injection system are also heated during engine shutdown. Additionally...

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Abstract

The present invention provides a large two-stroke diesel engine with an exhaust gas scrubber, wherein the water with high salinity is pumped to the exhaust gas scrubber for generating spray. The exhaust gas passes through the spray for reducing the content of SO2. The engine is also provided with a scavenging humidifying unit which is operated by sea water and / or a fresh water generator that converts sea water to fresh water. The high salinity waste water of the scavenging humidifying unit and / or the fresh water generator is used for the exhaust gas scrubber. Compared with the common sea water, the high salinity of the waste water increases the efficiency of the scrubber. Therefore, a considerably large pumping workload required for keeping the operation of scrubber can be remarkably reduced.

Description

technical field [0001] The invention relates to a SO 2 Exhaust gas scrubbers for large diesel engines operating on heavy fuel, such as the main engines of seagoing vessels. Background technique [0002] Overall awareness of environmental issues is growing rapidly. There is an ongoing discussion within the IMO (International Maritime Organization) regarding emission limits in the form of air pollution at sea. Authorities in different parts of the world have taken similar measures. Such as the proposed EPA (US Environmental Protection Agency) regulations currently under discussion. [0003] However, for cost reasons, large two-stroke diesel engines typically operate on heavy fuel oil, a fuel with a relatively high sulfur content. Therefore, the SO of the exhaust gas 2 content is correspondingly higher. A known method for reducing SO in exhaust gas 2 A horizontal approach is to apply an exhaust gas scrubber that produces a salt water spray through which the exhaust gas p...

Claims

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Application Information

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IPC IPC(8): F01N3/08B01D53/92B01D53/78B01D53/50
CPCY02T10/146Y02T10/16Y02T10/12F01N3/04F01N2590/02F02B25/02
Inventor 尼尔斯·谢姆楚普
Owner 曼能解决方案(曼能解决方案德国股份公司)分公司
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