Deuslfurizing system for sea water
A desulfurization system, seawater technology, applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problem that the seawater desulfurization system does not have the ability of seawater distribution and aeration volume adjustment.
Active Publication Date: 2010-06-23
杨东 +3
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Problems solved by technology
However, because parameters such as flue gas volume and sulfur content, seawater alkalinity and temperature are variable, the existing seawater desulfurization system only desulfurizes seawater, regardless of flue gas volume, sulfur content, seawater alkalinity and temperature. The temperature of the absorption tower changes, so the system only works under the designed parameters. In the case of changes in the above parameters, the seawater desulfurization system does not have the corresponding adjustment ability of seawater distribution and aeration
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[0016] Such as figure 1 As shown, the seawater desulfurization system of the present invention comprises: chimney 1, booster fan 20, heat exchanger 4, absorption tower 5, aerator 10, aeration tank 11, forebay 17 and booster pump 15, booster fan The gas outlet of 20 is connected with the exhaust gas inlet at the lower end of heat exchanger 4, the exhaust gas outlet at the lower end of heat exchanger 4 is connected with the exhaust gas inlet at the lower end of absorption tower 5, and the exhaust port at the upper end of absorption tower 5 is connected with the upper end of heat exchanger 4. The air inlet at the upper end of the heat exchanger 4 is connected with the chimney 1, the forebay 17 is connected with the liquid inlet of the absorption tower 5 through two parallel booster pumps 15, and the liquid inlet of the booster pump 15 Electric gates 16 are respectively installed at the liquid outlet, the bottom of the forebay 17 is also connected with the sea water inlet of the a...
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The invention relates to a seawater desulphurization system. The invention comprises a controller, a sulfur dioxide content meter, a gas flow meter, a seawater flow meter, a controlling device, a thermometer and a pH monitor. The sulfur dioxide content meter and the gas flow meter are in turn connected in series with an air intake of a pressure fan. The thermometer is arranged on an absorption tower. The pH monitor is arranged on a liquid outlet of an aeration tank. The seawater flow meter is arranged on the seawater conveying pipe which is between a pressure pump and the absorption tower. The sulfur dioxide content meter, the gas flow meter, the seawater flow meter, the thermometer and the Ph monitor are separately connected with the controller in electric connection. The controller is connected with the pressure pump through the controlling device and an aerator. The controller can regulate the output of the seawater pressure pump based on the gas volume and sulfur content variationof the gas to achieve the best match of the desulphurization seawater volume and gas volume. Because the seawater temperature and the variation of the alkalinity cause the seawater have different recovery capability, the aeration rate of the aeration fan is monitored and adjusted based on the pH value of the aeration tank outlet to optimize the aeration rate.
Description
technical field [0001] The invention relates to a seawater desulfurization system, in particular to a system for removing sulfur dioxide in flue gas by using seawater. Background technique [0002] At present, the combustion flue gas of coal-fired industrial boilers or power plant boilers contains a large amount of SO 2 It is the main cause of air pollution and acid rain. For industrial combustion systems near the sea, especially for flue gas purification of large coal-fired power plant boilers, using seawater for desulfurization is an economical, efficient and environmentally friendly choice. The seawater desulfurization process must solve the problems of flue gas purification and seawater restoration at the same time, which requires a reasonable selection and distribution of the available seawater volume and the aeration volume used for seawater restoration. However, because parameters such as flue gas volume and sulfur content, seawater alkalinity and temperature are va...
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IPC IPC(8): B01D53/78B01D53/18B01D53/50
Inventor 杨东陈颖陈玉乐
Owner 杨东