摘要:
A human load of regularly measuring a pH of a position 4 meters from a discharge point during a term of a commissioning of a ship with a scrubber apparatus is reduced. Provided is an apparatus provided inside a ship having a scrubber, including a first pH measuring instrument which measures a pH value of washing water discharged from the scrubber to outboard, a second pH measuring instrument which measures a pH value of washing water supplied from outboard to the scrubber, and a calculating unit which calculates a pH value of water at a predetermined position outboard, based on a dilution ratio which shows a ratio by which the washing water discharged to outboard is diluted at the predetermined position outboard, the pH value measured by the first pH measuring instrument, and the pH value measured by the second pH measuring instrument.
摘要:
Provided is a gas absorption tower capable of preventing damage during an assembly operation thereof, simplifying the assembly operation and improving efficiency thereof. A gas absorption tower (10) for performing gas absorption by bringing a gaseous matter and fluid into contact with each other has: an introducing portion (20) into which the gaseous matter and the fluid are introduced from the outside; an absorbing portion (21) for performing gas absorption by bringing the gaseous matter and the fluid, which are supplied from the introducing portion, into contact with each other; and a discharge portion (24) for discharging the gaseous matter, subjected to the gas absorption, to the outside. The absorbing portion has a cylindrical piping component (11) in which is formed an internal space to which the gaseous matter is supplied, and a spray device (12) for spraying the fluid to the gaseous matter in the internal space. The cylindrical piping component is divided into a plurality of parts in the central axis direction thereof. The cylindrical piping component includes a lower cylinder (31) and an upper cylinder (32) that configure a cylinder when assembled. The lower cylinder (31) and the upper cylinder (32) are each formed to have a shape obtained by cutting a cylindrical body along the central axis direction thereof.
摘要:
A nozzle provided inside an absorption tower requires periodic maintenance because it degrades because of deformation caused by corrosion due to a liquid injected, wear of an injection port due to injection of a liquid at high-pressure, or the like. Normally, the nozzle and the absorption tower that includes therein a trunk tube that supplies a liquid to the nozzle, and the like are configured integrally. Therefore, if maintenance of the nozzle is to be performed, the entire absorption tower needs to be detached and dismantled temporarily from an exhaust gas processing apparatus. For this reason, the work is large-scale, and it has been difficult to make ready operators, the work time, the working space and the like. An exhaust gas processing apparatus is provided, the exhaust gas processing apparatus including: an absorption cylinder that absorbs a target substance in an exhaust gas by causing the exhaust gas to contact a liquid; an injection portion that injects the liquid into an inner space of the absorption cylinder through which the exhaust gas passes; a conduit: to which the injection portion is attached; that guides the liquid to the injection portion; and that is arranged inside the absorption cylinder; and a supply tube that supplies the liquid to the conduit, wherein the conduit has an uncoupling portion that allows uncoupling from the supply tube so that the conduit can be withdrawn to an outside along a flue that guides, to outside air, the exhaust gas that has passed through the absorption cylinder in a state where the injection portion remains attached.
摘要:
The present invention provides an amount of seawater control device for a scrubber, which is capable of achieving stable operation by supplying a suitable amount of seawater to the scrubber, in such a manner that the sulfur oxide concentration in exhaust gas after processing never exceeds a limit value. An amount of seawater control device for a scrubber, which controls an amount of seawater supplied to a scrubber that purifies sulfur oxide contained in exhaust gas by bringing the sulfur oxide into contact with seawater, includes: a minimum amount of seawater converter (61) which calculates a minimum amount of seawater which is a minimum amount of seawater necessary for an absorption reaction of the sulfur oxide by the seawater, from an engine output and a sulfur content of fuel oil; an amount of seawater correction converter (68) which calculates a corrected amount of seawater which is an amount of seawater at which the sulfur oxide contained in the exhaust gas discharged into atmosphere from the scrubber is equal to or less than a set variable; a summing element (69) which calculates a set amount of seawater by summing the minimum amount of seawater and the corrected amount of seawater; and a pump control device (70) which implements control such that seawater corresponding to the set amount of seawater is supplied to the scrubber.
摘要:
An exhaust gas processing apparatus that processes exhaust gas, including a reaction tower that includes an internal space extending in a height direction from a bottom portion side where the exhaust gas is introduced to a top portion side where the exhaust gas is emitted; a trunk tube that extends in the height direction in the internal space of the reaction tower and transports a liquid; and a plurality of branch tubes that are provided extending from an outer side surface of the trunk tube toward an inner side surface of the reaction tower, each include an ejecting section that ejects the liquid supplied from the trunk tube, and are provided at positions at different heights. Ejection regions of the liquid where the liquid is ejected from the respective ejecting sections of branch tubes that are adjacent in the height direction include a region in which the ejection regions partially overlap in an overhead view as seen from the height direction.
摘要:
To reduce the excessive amount of the absorption liquid that is ejected in the top portion of an absorption tower without contributing to the absorption of the sulfurous acid gas and to eliminate the lack of absorption liquid in the bottom portion of the reaction tower, provided is an exhaust gas processing apparatus that processes exhaust gas, including a reaction tower into which the exhaust gas is introduced; a trunk tube that is provided in a height direction inside the reaction tower and is supplied with a liquid for processing the exhaust gas; and a plurality of ejecting sections that eject the liquid supplied from the trunk tube. The plurality of ejecting sections are provided at different positions in the height direction of the reaction tower from a bottom portion side where the exhaust gas is introduced to a top portion side where the exhaust gas is emitted, and a volume flow rate of the liquid ejected from the ejecting sections on the top portion side is less than a volume flow rate of the liquid ejected from the ejecting sections on the bottom portion side.
摘要:
In the case when an exhaust gas amount is decreased, swirling power of an exhaust gas is maintained. To provide an exhaust gas treatment apparatus comprising: a reaction tower which has one or more openings through which an exhaust gas is introduced, and one or more exhaust gas introducing pipes which are provided corresponding to the one or more openings and carry the exhaust gas, wherein in the one or more openings, an opening area which contributes to introducing the exhaust gas into the reaction tower is variable. The reaction tower has two or more openings with different areas, and the respective exhaust gas introducing pipes corresponding to two or more openings with different areas has a selecting unit which selects whether to introduce the exhaust gas into the reaction tower or not.
摘要:
An object of the present invention is to achieve stable operation by supplying an appropriate amount of seawater to a scrubber in such a manner that the sulfur oxide concentration in the exhaust gas after processing does not exceed a limit value, and to reduce the measurement frequency of the alkalinity. The amount-of-seawater control device for a scrubber includes: a minimum-amount-of-seawater converter (61) which calculates a minimum amount of seawater which is a minimum amount of seawater necessary for an absorption reaction of the sulfur oxide by the seawater, from an engine output and a sulfur content of fuel oil; an amount-of-seawater correction converter (68) which calculates a corrected amount of seawater which is an amount of seawater at which the sulfur oxide contained in the exhaust gas discharged from the scrubber is equal to or less than a set value; a summing element (69) which calculates a set amount of seawater by summing the minimum amount of seawater and the corrected amount of seawater; a pump control device (70) which implements control such that seawater corresponding to the set seawater amount is supplied to the scrubber; and an alkalinity setting device (81) which sets the alkalinity of the seawater in accordance with traveled waters. The amount of seawater supplied to the scrubber is adjusted on the basis of the alkalinity.
摘要:
Maintenance is performed on an ejecting section without temporarily removing an absorption tower from an installation platform. Therefore, since a crane or the like is not needed to remove the absorption tower, problems of space being needed to install the crane and cost increase due to installation of the crane are solved. In addition, the maintenance work time is shortened by the time needed to remove the absorption tower. Provided is an exhaust gas processing apparatus comprising an absorption tower that cleans exhaust gas by causing gas-liquid contact between the exhaust gas and a liquid. The absorption tower includes an ejecting section that ejects the liquid inside the absorption tower, and a door portion that is able to open and close at least a portion of a side wall of the absorption tower.