Marine diesel engine waste gas desulfurization high-reliability spray liquid transporting and measurement and control device

A technology of marine diesel engine and measurement and control device, which is applied in injection device, flow control using electric device, and dispersed particle separation, etc., can solve the problems of high technical difficulty and high reliability requirements of exhaust gas desulfurization equipment, so as to reduce the probability of failure and ensure high reliability. sexual effect

Inactive Publication Date: 2016-02-10
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 requirem

Method used

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  • Marine diesel engine waste gas desulfurization high-reliability spray liquid transporting and measurement and control device
  • Marine diesel engine waste gas desulfurization high-reliability spray liquid transporting and measurement 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 high-reliability spray liquid transporting and measurement and control device used in marine diesel engine waste gas desulfurization and belongs to the fields of air pollution control and ship waste gas emission control. A desulfurization system is composed of a washing kettle, a neutralizing treatment device, a water sump, an alkaline solution pot, a solid-liquid separator, a saturated liquid pot, a solid material discharge cabin, transporting and measurement and control devices for treatment mixed liquids and the like, and the like other units. Marine diesel engine waste gas enters the washing kettle and is fully mixed and contacted with a sprayed desulfurizing alkaline water solution, and then is subjected to neutralization treatment to dissolve and absorb the sulfur oxides in the waste gas to form sulfates, wherein other particles in the waste gas are also adhered to and mixed with the water solution. The treated waste gas finally is subjected to separation, treatment and recycling. On the basis of reliability theories and methods, series-parallel connection combined design of the parts of the spray liquid transporting and measurement and control device in the marine diesel engine waste gas desulfurization system is carried out. The device is reduced in fault probability, greatly increases the reliability of the waste gas desulfurization system and can satisfy the demand of marine diesel engine waste gas desulfurization.

Description

technical field [0001] The invention discloses a high-reliability spray liquid delivery and measurement and control device for marine diesel exhaust gas desulfurization, which belongs to the fields of air pollution control and marine ship exhaust gas emission control. 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. Background technique ...

Claims

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Application Information

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IPC IPC(8): B01D53/92B01D53/50B05B12/00G05D7/06
Inventor 董志峰王振翀田庆涛
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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