The "15 ppm bilge water separator" is any combination of a separator, a filter, a coagulation filter, or other device, and can also be a single device designed for effluent oil content not exceeding 15 ppm.

The automatic shutdown device should be a valve device installed at the effluent outlet line of the 15 ppm bilge water separator. When the oil content of the effluent exceeds 15 ppm, it will automatically divert the mixed effluent discharged to the outside of the ship back to the ship's bilge or sewage tank. For future inspections on board, it is advisable to approach as close as possible according to practical feasibility A sampling point is set up in the vertical section of the discharge pipe at the outlet of the 15 ppm bilge water separator. Recirculation equipment should be installed behind and near the exit of the shutdown device, including The 15 ppm bilge water separation system, including the 15 ppm bilge water alarm device and automatic shutdown device, can be tested with the discharge from the outside of the ship stopped. The installation of recycling equipment should be able to prevent any situation of bypassing the oil-water separator under all working conditions. The displacement of the feed pump should not exceed 110% of the rated capacity of the 15 ppm bilge water separator, and the specifications of the pump and motor should be recorded on the type approval certificate. The 15 ppm bilge water separator should be fixedly equipped with a label to indicate all operational or installation restrictions deemed necessary by the manufacturer or regulatory authority.

The technical conditions for a 15 ppm bilge water separator are considered suitable for combining oily bilge water with ballast water from fuel tanks, as the fuel tank capacity is small or medium, and is subject to the need to avoid discharging oily mixtures with an oil content exceeding 15 ppm. The alarm arrangement specified in Article 16 (5) of the 15 ppm bilge water alarm device is referred to as the "15 ppm bilge water alarm device" in this Guide and Technical Conditions.

The so-called "ppm" refers to the parts per million of oil content in water, measured by volume. The "ppm display" is a digital indicator display for the 15 ppm bilge water alarm device. When applicable, the automatic shutdown device is used when the oil content in the effluent exceeds A device used to automatically shut down any outboard emissions of oily mixtures at 15 ppm.

Ships equipped with a 15 ppm bilge water separator should always carry an operation and maintenance manual. The layout of the installation pattern should ensure that the total response time (including the response time of the 15 ppm bilge water alarm device) exceeds the oil content of the effluent from the 15 ppm bilge water separator The time required for the automatic shutdown device to stop the discharge from the outside of the ship starting from 15 ppm should be as short as possible, and in any case not more than 20 seconds. From the 15 ppm bilge water separator to The ship's arrangement for extracting samples from the discharge pipeline of the 15 ppm bilge water alarm device should provide a truly representative effluent sample with sufficient pressure and flow rate. Ships equipped with a 15 ppm bilge water alarm device should always carry one operation.

Dongtai Dongfang Ship Assembly Co., Ltd. is a member of the Ship Standards Committee of China Shipbuilding Industry Corporation. The company currently has more than 200 employees, complete production equipment, strong technical strength, and testing methods. On the basis of the original Dongtai Dongfang Ship Equipment Factory, the company has established Dongtai Dongfang Ship Assembly Co., Ltd. It now has two branch factories and has passed ISO9001-2000 quality management system certification. It has been awarded the "Yancheng Science and Technology Progress Award", "Contract abiding and Creditworthy Enterprise", and "Comprehensive * Unit" by the Dongtai Municipal Government for many years.