Marine ballast water treatment device

Marine ballast water treatment devicesummary:

Marine ballast water treatment deviceIt is a water treatment device composed of a negative pressure self-cleaning filter and a ballast water ultraviolet processor, involving a ship ballast water system. It is equipped with a horizontally arranged cylindrical filter housing, which has an inlet and outlet, a cylindrical filter element, and a hollow discharge shaft inside the cylindrical filter element. One end of the hollow discharge shaft is connected to a fixed discharge pipe, and the other end of the hollow discharge shaft is connected to the main shaft of the driving motor; There are suction pipes evenly distributed on the hollow sewage shaft, and suction heads are installed on the suction pipes; The suction head is equipped with a suction chamber inside the outer shell, a suction port at the upper part, a plug-in pipe at the lower part of the outer shell, a sliding anti rotation groove on the plug-in pipe, an anti rotation protrusion that matches the sliding anti rotation groove inside the suction branch pipe, and a compression spring between the lower side of the outer shell and the upper end of the suction branch pipe. The present invention has a simple structure, low manufacturing cost, convenient and fast maintenance, good cleaning effect, and low usage cost.

Marine ballast water treatment devicetechnical field

The ship's ballast water system, in detail, is a negative pressure self-cleaning filter with a simple structure, low manufacturing cost, easy and fast maintenance, good cleaning effect, and low operating cost. The filter is the most critical component in the ship's ballast water system. In the Ocean Shield ballast water management system, the filter is installed before the ultraviolet reactor to remove impurities such as particulate matter, as well as plankton above 50 μ πι. Prevent the invasion of alien species and the spread of pathogens caused by the discharge of ballast water from ships, and avoid damage to the environment, human health, property, and resources. The operation of the filtration system and self-cleaning do not affect the UV treatment process, and the self-cleaning flushing solution is discharged into the water collection area. There are many styles of filters for existing ship ballast water systems, such as gas assisted liquid backwash filters, mechanical brush self-cleaning filters, disc self-cleaning filters, and negative pressure self-cleaning filters. Through experimental verification, it has been found that gas assisted liquid backwash filters, mechanical brush self-cleaning filters, and disc self-cleaning filters frequently backwash under harsh water conditions, and even experience clogged filter elements. Despite frequent cleaning, negative pressure self-cleaning filters can restore their initial pressure difference after each backwash, making them suitable for working in harsh water environments. The structure of the existing negative pressure self-cleaning filter is: equipped with a filter housing, with an inlet and outlet on the filter housing, a filter element between the inlet and outlet, a negative pressure cleaning suction nozzle on the filter element on the inlet side, a cleaning suction tube inside the filter housing on the inlet side, the cleaning suction nozzle is connected to the cleaning suction tube, and the other end of the cleaning suction tube is connected to the sewage inlet; The filter housing is equipped with a working motor, which drives the cleaning nozzle to move back, forth, left, and right on the filter element through a transmission mechanism. The existing negative pressure self-cleaning filter transmission mechanism has a complex structure, high manufacturing cost, easy damage, difficult maintenance, high cost, low cleaning efficiency for the filter screen, uneven cleaning, and poor effectiveness.

also called:

Ship specific ballast water treatment device, medium pressure ultraviolet inactivation device, ship self-cleaning filter, ship ultraviolet water processor, ballast water ship valve