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Water supply and drainage control method in desulfurization system for magnesium-based seawater ships

A desulfurization system and control method technology, applied in the field of flue gas desulfurization, can solve problems such as blanks, and achieve the effect of rich seawater resources

Active Publication Date: 2011-08-17
江苏合益环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Magnesium-based seawater desulfurization technology is an effective desulfurization technology suitable for specific working conditions of ships, but this kind of ship desulfurization technology is blank at home and abroad

Method used

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  • Water supply and drainage control method in desulfurization system for magnesium-based seawater ships
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  • Water supply and drainage control method in desulfurization system for magnesium-based seawater ships

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the examples.

[0018] On a container ship, the pH value control system of the spray slurry is used to control SO 2 Removal effect test. Use fuel oil with a sulfur content of 0.71-0.93% m / m, normal sea navigation, the air volume of exhaust gas emitted by the main engine is about 50,000m 3 / h. The device is powered by 440V, 60Hz three-phase AC ship power, and the induced air volume is less than 10000m 3 / h, the power of the induced draft fan is adjustable from 10 to 30kW, the power of the frequency conversion pump in the slurry pipeline is adjustable below 3kW, the pressure is 3.5 to 4.0atm, and the flow rate of the slurry supply is 0.1 to 1.0m 3 / h adjustable (Mg(OH) 2 The slurry concentration is less than 25%). The power of the circulating spray pump is adjustable from 10 to 30kW, and the slurry spray is less than 100m 3 / h is adjustable. Within 10 hours, the continuous running test resu...

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Abstract

The invention discloses a water supply and drainage control method in a desulfurization system for magnesium-based seawater ships. A main water supply and drainage device in the method comprises a floater type liquid level meter, a PH meter, a smoke temperature measurement controller, a smoke flow meter, a discharge pump, a seawater pump and other parts. According to the self characteristics of the ships, the seawater is used as a consumable item; the floater type liquid level meter is used for positioning the liquid level; and the long-term stable reliable and automatic running of a water supply and drainage system in the desulfurization system for magnesium-based seawater ships is realized through adjusting and controlling the pH value of slurry, carrying out smoke temperature measurement and control and comprehensively controlling the water supply and drainage amounts.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization, in particular to a water supply and drainage control method for a magnesium method and a seawater method desulfurization system. Background technique [0002] Bunker fuel oil has implemented extremely strict sulfur content standards, while allowing ships to use approved emission reduction technologies, provided that SO 2 Emissions equal to or lower than burning 0.10% low-sulfur fuel. The use of fuel oil with low sulfur content will greatly increase the operating cost of ships, so flue gas desulfurization has become the most feasible option to meet the new standards. [0003] Compared with dry and semi-dry methods, wet desulfurization has been widely used due to its mature technology. At present, the most successful desulfurization technology to achieve industrial application is chemical method, including calcium method, magnesium method and seawater desulfurization method. Bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/50
Inventor 朱益民张路李铁刘爽
Owner 江苏合益环境工程有限公司