Abstract: A secondary battery includes an electrode assembly having a positive electrode provided with a positive electrode tab, a separator, and a negative electrode provided with a negative electrode tab, the positive electrode, the separator, and the negative electrode being wound, the electrode assembly having a core part at a center thereof; a can configured to receive the electrode assembly therein, the negative electrode tab being connected to the can; a cap assembly coupled to an opening of the can, the positive electrode tab being connected to the cap assembly; and a reinforcing member provided on an end of the separator exposed beyond the positive electrode or the negative electrode to prevent heat of the positive electrode tab or the negative electrode tab from being transferred to the separator.

Abstract: According to an embodiment of the present disclosure, an exhaust gas treatment apparatus may include: a preprocessor configured to primarily remove harmful substances from exhaust gas produced by combustion; and a postprocessor configured to further remove harmful substances from preprocessed gas, which is the exhaust gas from which the harmful substances have been primarily removed by the preprocessor, wherein the postprocessor may include a postprocessor housing having a preprocessed gas inlet through which the preprocessed gas is introduced and a postprocessed gas outlet through which postprocessed gas from which harmful substances have been further removed by the postprocessor is discharged and forming a flow path of the preprocessed gas therein, and a diffuser disposed adjacent to the preprocessed gas inlet and configured to diffuse the preprocessed gas introduced through the preprocessed gas inlet.

Abstract: According to an embodiment of the present disclosure, an exhaust gas treatment apparatus may include: a preprocessor configured to primarily remove harmful substances from exhaust gas produced by combustion; and a postprocessor configured to further remove harmful substances from preprocessed gas, which is the exhaust gas from which the harmful substances have been primarily removed by the preprocessor, wherein the postprocessor may include a postprocessor housing having a preprocessed gas inlet through which the preprocessed gas is introduced and a postprocessed gas outlet through which postprocessed gas from which harmful substances have been further removed by the postprocessor is discharged and forming a flow path of the preprocessed gas therein, and a diffuser disposed adjacent to the preprocessed gas inlet and configured to diffuse the preprocessed gas introduced through the preprocessed gas inlet.

Abstract: The present disclosure relates to a system and a method for removing noxious gas from cleaning liquid discharged from an exhaust gas treatment apparatus and, more particularly, to a system and a method for removing noxious gas from cleaning liquid discharged from an exhaust gas treatment apparatus, which are capable of adjusting the discharge rate of the cleaning liquid in a noxious gas removal unit, which removes noxious gas remaining in a gaseous state in the cleaning liquid discharged from the exhaust gas treatment apparatus and discharges the cleaning liquid from which the noxious gas in the gaseous state has been removed, on the basis of a result of measurement of the level of the cleaning liquid in the noxious gas removal unit.

Abstract: A flue gas cleaning solution purification system includes: a scrubber for removing contaminants from flue gas by using a cleaning solution; a cleaning solution purification unit for purifying the contaminated cleaning solution discharged from the scrubber; a cleaning solution resupply unit for resupplying the cleaning solution having been purified by the cleaning solution purification unit to the scrubber; and a sludge treatment unit for treating and storing sludge discharged from the cleaning solution purification unit, wherein the cleaning solution purification unit includes: a circulation buffer tank for temporarily storing the discharged contaminated cleaning solution; a coagulant supply apparatus for supplying a coagulant which coagulates contaminants of the contaminated cleaning solution discharged from the scrubber; a settling apparatus for primarily purifying the contaminated cleaning solution discharged from the scrubber by enabling settling of the contaminants; and a filtering apparatus for secondar

Abstract: The present disclosure relates to a system and a method for removing noxious gas from cleaning liquid discharged from an exhaust gas treatment apparatus and, more particularly, to a system and a method for removing noxious gas from cleaning liquid discharged from an exhaust gas treatment apparatus, which are capable of adjusting the discharge rate of the cleaning liquid in a noxious gas removal unit, which removes noxious gas remaining in a gaseous state in the cleaning liquid discharged from the exhaust gas treatment apparatus and discharges the cleaning liquid from which the noxious gas in the gaseous state has been removed, on the basis of a result of measurement of the level of the cleaning liquid in the noxious gas removal unit.

Abstract: The present invention relates to an a multi-cage type ballast water filtering apparatus having a function of automatically controlling simultaneous backwashing, and a method of automatically controlling the simultaneous backwashing. The apparatus includes a body, and filtering units connected to each other to form a packaged structure in the body. Each filtering unit includes a filter filtering ballast water, and an automatic washing unit backwashing the filter. The apparatus further includes a first pressure sensor measuring the pressure in space between the body and the filters, and a second pressure sensor installed on each of some of the filtering units to measure the pressure in the filter of the corresponding filtering unit. When a difference between pressures measured by the first and second pressure sensors exceeds a predetermined range, the automatic washing units of all of the filtering units are simultaneously operated.

Abstract: Provided are an exhaust gas vessel denitration system and a method of determining nozzle clogging in the same, and more particularly, an exhaust gas vessel denitration system including an exhaust pipe for discharging exhaust gas including nitrogen oxide generated from an engine of a vessel, a reducing agent inlet configured as an integrated dosing unit (IDU) for injecting a reducing agent into the exhaust pipe, and a reactor for inducing a reduction reaction of exhaust gas mixed with the reducing agent and decomposing nitrogen oxide in the exhaust gas to nitrogen and water vapor to reduce the nitrogen oxide, and a method of determining clogging of urea spray at an injector nozzle of the system.

Abstract: A device for filtering ballast water which performs filtering by installing a filter element having a conical shape in a concentric circle direction inside the device for filtering ballast water that accommodates a filter portion, and introducing ballast water from a lower end of the device for filtering and passing same through the filter element inside the device for filtering, and for discharging backwash water containing foreign substances that are inside a filter by way of differential pressure, which is created by a driving portion communicating with a filter element by rotating a suction portion that is located on a lower end of the device for filtering. Particularly, the present invention relates to a high-efficiency candle-type device for filtering ballast water having a high-density filter structure, wherein the driving portion is positioned on a lower portion of a housing so that more filter elements can be accommodated inside the housing.

Abstract: Disclosed is a test system for a dynamic positioning controller system of a ship, the dynamic positioning controller system generating a control signal containing final destination information of the ship based on a simulated sensor signal, the test system including: an actuator simulator receiving the control signal containing the final destination information of the ship and continuously generating a modeled control signal containing thrust information; a ship simulator receiving the modeled control signal and performing ship motion analysis; a sensor simulator measuring the simulated sensor signal at the ship simulator; and a data collection unit storing a test condition, wherein when the test system repeatedly performs simulation based on the test condition, the data collection unit stores test results and analyzes the stored test results to automatically generate a report, whereby the test system derives highly reliable test results based on the modeled control signal and the simulated sensor signal.

Abstract: A device for filtering ballast water which performs filtering by installing a filter element having a conical shape in a concentric circle direction inside the device for filtering ballast water that accommodates a filter portion, and introducing ballast water from a lower end of the device for filtering and passing same through the filter element inside the device for filtering, and for discharging backwash water containing foreign substances that are inside a filter by ways of differential pressure, which is created by a driving portion communicating with a filter element by rotating an aspiration portion that is located on the lower end of the device for filtering. In particular, the present invention relates to a candle-type device for filtering ballast water, wherein the driving portion is positioned on a lower portion of the housing so that more filter elements can be accommodated inside the housing.

Abstract: A filtering device for treating ballast water and more particularly, a multicage-type device for filtering ballast water to prevent back pressure, wherein the multicage-type device for filtering ballast water includes a back pressure prevention tank on a backwash line for backwashing and discharging foreign substances that are inside a filter of the device for filtering, so that backwash water and the foreign substances in the backwash line are preliminarily stored in the back pressure prevention tank thereby preventing an increase of back pressure and preventing an increase of the back pressure on the backwash line by always maintaining a level of water inside the back pressure prevention tank at lower than an inlet port that is connected to the backwash line.

Abstract: A device for filtering treating ballast water by way of a filtering method, and more particularly, to a compact and operability-enhancing multicage-type device for filtering ballast water, which distributes a lower portion of the device for filtering a discharge portion for discharging foreign substances after backwashing a filter and a backwash line, among features that are concentrated at an upper portion of the device for filtering, and communicates discharge tubes of each filtering unit in a single line, by considering the unique installation environment of the device for filtering that is coupled to a ship, thereby simplifying structure, reducing space required for installing the device for filtering in the upper portion of the device for filtering, allowing efficient maintenance by integrating foreign substance discharge and back pressure maintenance of each of the filtering units.

Abstract: Disclosed herein is an apparatus having a double wiper structure for sterilizing ballast water. Each wiper for use in removing foreign substances from an ultraviolet lamp has a double structure including a main wiper part and auxiliary wiper parts. The auxiliary wiper parts are disposed on opposite sides of the main wiper part so that when the wiper body is moved forward or backward, the corresponding auxiliary wiper part primarily removes foreign substances before the main wiper part wipes the ultraviolet lamp unit. Each auxiliary wiper part includes an inclined protrusion and a pointed part so that friction between the surface of the ultraviolet lamp and the auxiliary wiper part can be minimized. The main wiper part includes a first blade and a second blade that are respectively disposed on opposite sides of a depression formed in an inner circumferential surface of the main wiper part.

Abstract: The present invention relates to an a multi-cage type ballast water filtering apparatus having a function of automatically controlling simultaneous backwashing, and a method of automatically controlling the simultaneous backwashing. The apparatus includes a body, and filtering units connected to each other to form a packaged structure in the body. Each filtering unit includes a filter filtering ballast water, and an automatic washing unit backwashing the filter. The apparatus further includes a first pressure sensor measuring the pressure in space between the body and the filters, and a second pressure sensor installed on each of some of the filtering units to measure the pressure in the filter of the corresponding filtering unit. When a difference between pressures measured by the first and second pressure sensors exceeds a predetermined range, the automatic washing units of all of the filtering units are simultaneously operated.

Abstract: Disclosed herein is an apparatus for sterilizing ballast water. Ultraviolet lamps are installed in a body, and a cross-section of the body that is perpendicular to the orientation of the ultraviolet lamps is rectangular. The ultraviolet lamps are arranged at regular intervals in the rectangular cross-section of the body so that the number of ultraviolet lamps arranged per a unit cross-sectional area can be minimized. Thereby, the power consumption of the apparatus and the space required for installation thereof can be reduced. Furthermore, lines, each of which includes ultraviolet lamps arranged in a row perpendicular to the direction of the flow of ballast water, are arranged in the rectangular cross-section of the body. The ultraviolet lamps of each line are disposed between the ultraviolet lamps of the preceding or following line. Thus, ballast water can be prevented from being discharged out of the body without colliding with any ultraviolet lamp.

Abstract: Disclosed herein is an apparatus having a double wiper structure for sterilizing ballast water. Each wiper for use in removing foreign substances from an ultraviolet lamp has a double structure including a main wiper part and auxiliary wiper parts. The auxiliary wiper parts are disposed on opposite sides of the main wiper part so that when the wiper body is moved forward or backward, the corresponding auxiliary wiper part primarily removes foreign substances before the main wiper part wipes the ultraviolet lamp unit. Each auxiliary wiper part includes an inclined protrusion and a pointed part so that friction between the surface of the ultraviolet lamp and the auxiliary wiper part can be minimized. The main wiper part includes a first blade and a second blade that are respectively disposed on opposite sides of a depression formed in an inner circumferential surface of the main wiper part.

Abstract: Disclosed herein is an apparatus for sterilizing ballast water. Ultraviolet lamps are installed in a body, and a cross-section of the body that is perpendicular to the orientation of the ultraviolet lamps is rectangular. The ultraviolet lamps are arranged at regular intervals in the rectangular cross-section of the body so that the number of ultraviolet lamps arranged per a unit cross-sectional area can be minimized. Thereby, the power consumption of the apparatus and the space required for installation thereof can be reduced. Furthermore, lines, each of which includes ultraviolet lamps arranged in a row perpendicular to the direction of the flow of ballast water, are arranged in the rectangular cross-section of the body. The ultraviolet lamps of each line are disposed between the ultraviolet lamps of the preceding or following line. Thus, ballast water can be prevented from being discharged out of the body without colliding with any ultraviolet lamp.

Abstract: A device for filtering ballast water which performs filtering by installing a filter element having a conical shape in a concentric circle direction inside the device for filtering ballast water that accommodates a filter portion, and introducing ballast water from a lower end of the device for filtering and passing same through the filter element inside the device for filtering, and for discharging backwash water containing foreign substances that are inside a filter by ways of differential pressure, which is created by a driving portion communicating with a filter element by rotating an aspiration portion that is located on the lower end of the device for filtering. In particular, the present invention relates to a candle-type device for filtering ballast water, wherein the driving portion is positioned on a lower portion of the housing so that more filter elements can be accommodated inside the housing.

Abstract: A device for filtering ballast water which performs filtering by installing a filter element having a conical shape in a concentric circle direction inside the device for filtering ballast water that accommodates a filter portion, and introducing ballast water from a lower end of the device for filtering and passing same through the filter element inside the device for filtering, and for discharging backwash water containing foreign substances that are inside a filter by way of differential pressure, which is created by a driving portion communicating with a filter element by rotating a suction portion that is located on a lower end of the device for filtering. Particularly, the present invention relates to a high-efficiency candle-type device for filtering ballast water having a high-density filter structure, wherein the driving portion is positioned on a lower portion of a housing so that more filter elements can be accommodated inside the housing.