Ship tail gas desulfurization wastewater monitoring method
A technology for desulfurizing wastewater and ship exhaust gas, which is applied in the field of ship exhaust gas desulfurization, which can solve the problems of complex sensor calibration and maintenance, many equipment measurement parameters, troublesome maintenance, etc., and achieve the effects of improving maintenance efficiency, improving absorption effect, and saving costs
Active Publication Date: 2020-04-10
ZHEJIANG TUNA ENVIRONMENTAL SCI & TECH
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Problems solved by technology
[0003] The above-mentioned technical solution has the following defects: the existing technical solution configures two water quality monitoring equipment to detect the water quality of the seawater inlet and the washing water discharge respectively, the equipment measures many parameters, and the calibration and maintenance of the sensor is complicated. When the equipment fails, Maintenance is more troublesome
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[0049] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0050] A monitoring method for ship tail gas desulfurization wastewater, with reference to figure 1 and figure 2 , including the following steps:
[0051] S1: the seawater pump 12 pumps seawater into the first pipe 11;
[0052] S2: Introduce part of the seawater in the first pipe 11 into the water quality analysis equipment 2 to detect the pH value, turbidity DT and oil PAH in water. The detection time is t1. After the detection, it is discharged and then cleaned. The cleaning time is t2;
[0053] S3: The seawater in the first pipe 11 is transported to the scrubber 7, and the scrubber 7 sprays the seawater down to remove SOx from the combustion flue gas;
[0054] S4: the washing water is discharged from the washing tower 7 through the second pipe 14;
[0055] S5: After the cleaning in S2, introduce part of the washing water in the second pipe 14 into the...
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The invention relates to a ship tail gas desulfurization wastewater monitoring method, which relates to the technical field of ship waste gas desulfurization, and comprises the following steps: S1, pumping seawater into a first pipe by a seawater pump; s2, introducing part of seawater in the first pipe into water quality analysis equipment for detection, and performing discharging and cleaning after the detection is finished; s3, conveying the seawater in the first pipe to a washing tower, and enabling the washing tower to spray down the seawater to remove SOx from the combustion flue gas; s4,discharging the washing water from the washing tower through a second pipe; s5, after cleaning in the S2 is completed, introducing part of washing water in the second pipe into water quality analysisequipment for detection, and after detection is completed, discharging the washing water again, and performing cleaning again; s6, discharging the washing water into the sea; and S7, returning to thestep S1 again. Seawater and washing water can be detected through one piece of water quality analysis equipment, maintenance is simple, maintenance can be conducted conveniently when faults occur, and therefore cost can be saved and maintenance efficiency can be improved under the condition that detection is not affected.
Description
technical field [0001] The invention relates to the technical field of ship exhaust gas desulfurization, in particular to a monitoring method for ship tail gas desulfurization wastewater. Background technique [0002] The International Maritime Organization (IMO) requires ships in global operation to reduce the sulfur content of fuel oil in combustion devices from 3.5% to 0.5% from January 1, 2020, and the sulfur content of fuel oil in sulfur emission control areas must be below 0.1%. The installation of wet exhaust gas desulfurization EGCS system for operating ships is the most economical choice for large and medium-sized shipowners. The ship desulfurization system uses the alkalinity of seawater to neutralize SOx in the flue gas to form sulfuric acid / sulfurous acid washing wastewater. The pH value, turbidity DT and PAH of oil in water need to be monitored for seawater and washing wastewater to meet the corresponding regulations before they can be discharged. The seawater ...
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IPC IPC(8): G01N33/18B01D53/14
CPCG01N33/18B01D53/1481B01D2252/1035
Inventor 赵博满中国沈柯华诸正元毕向建郑超宋超王博婷范德华
Owner ZHEJIANG TUNA ENVIRONMENTAL SCI & TECH