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Marine diesel engine exhaust gas desulfurization high-reliability circulation liquid delivery, measuring and control device

A marine diesel engine, measurement and control device technology, applied in the direction of using electric device flow control, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of high technical difficulty and high reliability requirements of exhaust gas desulfurization equipment

Inactive Publication Date: 2016-01-27
CHINA UNIV OF MINING & TECH (BEIJING) +1
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Problems solved by technology

At the same time, due to the particularity of the long-distance voyage of the ship, the reliability requirements of each part of the exhaust gas desulfurization equipment are high, so the technical difficulty is great

Method used

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  • Marine diesel engine exhaust gas desulfurization high-reliability circulation liquid delivery, measuring and control device
  • Marine diesel engine exhaust gas desulfurization high-reliability circulation liquid delivery, measuring and control device

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Embodiment Construction

[0019] First of all, according to the requirements of desulfurization of diesel engine exhaust gas in the process of sailing and leaving the port, the water tank (4) and the lye tank (5) in the system store sufficient lye and water, and the water tank (4) and the neutralization processor ( 3) Connect with the cleaning and dosing water delivery and measurement and control device (13) through the pipeline. The lye tank (5) is connected to the neutralization processor (3) through pipelines and lye delivery and the measurement and control device (14), and the lye and water are input into the neutralization processor (3) to prepare desulfurization at the required concentration. aqueous solution.

[0020] The exhaust gas discharged during the working process of the marine diesel engine is firstly cooled to below 80 degrees by heat exchange, and then enters the middle and lower part of the washing tank (1) through the air inlet channel.

[0021] The spray device in the upper part of...

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Abstract

The invention discloses a marine diesel engine exhaust gas desulfurization high-reliability circulation liquid delivery, measuring and control device, and relates to the field of atmospheric pollution control and ship exhaust gas emission control. A system is composed of a washing kettle, a neutralization processor, a water chamber, an alkali liquid tank, a solid-liquid separator, a saturated liquid tank, a solid discharge chamber, and delivery, measuring and control devices for processing mixed liquid and the like. According to the invention, marine diesel engine exhaust gas enters the washing kettle, and is fully mixed and contacted with a spray desulphurization alkaline water solution; through neutralization treatment, sulfur oxide is dissolved and absorbed, such that sulfate is formed; other particles in the exhaust gas are mixed with and attached to the water solution; and separation, processing and recovery are carried out. Based on reliability theory and method, serial and parallel connection combination design of various parts of the circulation liquid delivery, measuring and control device in the marine diesel engine exhaust gas desulfurization system is carried out. Circulation liquid delivery, measuring and control device failure probability is reduced, exhaust gas desulfurization equipment operation reliability is greatly improved, and the requirements of marine diesel engine exhaust gas desulfurization can be met.

Description

technical field [0001] The invention discloses a high-reliability circulating fluid delivery and measurement and control device for exhaust gas desulfurization of marine diesel engines, and belongs to the fields of air pollution control and exhaust gas emission control of marine ships. After heat exchange and cooling, the marine diesel engine exhaust gas enters the washing tank and is fully mixed and contacted with the spray desulfurization alkaline aqueous solution, and the sulfur oxide is dissolved and absorbed through neutralization treatment to form sulfate. Other particles in the exhaust gas are also attached and mixed by the aqueous solution, and then separated and recovered. Complete the high-efficiency desulfurization of marine diesel engine exhaust gas, meet the International Maritime Organization's limit standards for sulfur oxide emissions from marine diesel engine exhaust gas, and meet the requirements of air pollution control and environmental protection. Backgr...

Claims

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Application Information

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IPC IPC(8): B01D53/92B01D53/50G05D7/06
Inventor 董志峰王振翀田庆涛
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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