海洋開発技術研究所 List of Products and Services

Our floating oil recovery device, the "Floating Weir Type Oil Recovery Device Elimina," allows for a significant increase in oil recovery volume (speed) compared to conventional weir systems. While larger recovery pumps can enable the collection of more oil, they also result in the recovery of large amounts of water. As a result, all components such as pumps, tanks, oil-water separation devices, and generators become larger, leading to increased space requirements and costs. The "Floating Weir Type Oil Recovery Device Elimina" incorporates the aforementioned oil-water separation function and divides the functions of large pumps into small horsepower drainage wings (requiring only a few dozen watts for 50 m³/h) and small oil pumps, enabling the entire system to be compact. This allows us to provide a space-saving solution at a reduced cost. We have numerous successful cases of recovering oil with over 90% efficiency using a tank that concentrates the oil, so please feel free to contact us for more information.

• others

Hydraulic testing equipment (hydraulic experimental equipment) is designed for conducting hydraulic experiments in the fields of civil engineering, coastal engineering, and shipbuilding. Our company designs and manufactures wave generation devices for two-dimensional model experiments. With years of fluid technology experience in the shipbuilding industry, we can produce various flow generation devices tailored to customer needs, including circulating flows, tidal currents, tsunamis, step waves, and tides. We design, manufacture, and construct various hydraulic testing devices according to your requirements. The wave generation device for two-dimensional water tanks can easily generate regular and irregular waves through digital control via a computer. *Irregular waves can be set with any desired spectrum, and there are also types that have the function of absorbing reflected waves. As peripheral equipment, we also offer computer systems for wave generation, data collection, and analysis, as well as measurement carts. Additionally, we conduct experiments using wave generators, so we also accommodate requests for testing or experimentation only.

• others

Our cross-flow water turbine for small hydropower generation is equipped with a flow adjustment mechanism (guide vanes), allowing for stable power generation with a simple structure and easy maintenance. The dimensions of the turbine (diameter, width) are determined based on the flow rate and effective head. After that, a prototype is manufactured, and performance tests are conducted under conditions similar to the actual hydraulic environment to verify power generation performance. We have a dedicated water tank for the development of small hydropower generation systems. We use up to three 55 kW pumps as the flow generation device, combined with a 55 kW generator to conduct performance verification tests of the turbine. By using this water tank, we can confirm the power generation performance of the actual unit. We offer both sets with generators and standalone turbine sales, achieving low prices by consistently handling design, manufacturing, performance verification tests, installation, and on-site adjustments in-house. 【Features】 ■ Resistant to debris ■ Short installation period ■ Easy maintenance ■ Custom design according to installation location

• others

Our company was founded by engineers from a shipyard who started their own business. We have applied the fluid machinery technology developed in shipbuilding to small hydropower generation. We can offer cross-flow turbines under 50 kW at a low price. Additionally, we are flexible in customizing to meet our customers' requirements. Currently, we have four turbines of 20 to 50 kW in operation, and we are manufacturing one turbine of 50 kW. 【Features】 - Simple structure, making maintenance easy. - Equipped with a flow adjustment mechanism (guide vanes). The dimensions of the turbine (diameter, width) are determined based on the flow rate and effective head. After that, we manufacture the actual unit and conduct trial runs in a hydraulic environment similar to the site to confirm the power generation performance. Our company possesses testing facilities specifically focused on the development of small hydropower generation systems. We use up to three 55 kW pumps as water flow generation devices, combined with a 55 kW generator to conduct performance verification tests on the turbines. By using this testing facility, we can actually confirm the power generation performance. By consistently handling design, manufacturing, performance verification testing, construction, and on-site adjustments in-house, we achieve low prices.

• others

【New Information】 The General Incorporated Foundation Water Source Environment Center (WEC) has compiled the installation and operation manual for the propeller-type lake water purification system. 【Achievements】 More than 30 units are currently in operation at dams and reservoirs nationwide. 【Functions of Aqua Fine】 1. Suppression of algal blooms 2. Resolution of hypoxia 3. Measures against manganese "Aqua Fine" sends algal blooms that proliferate in the surface layer down to deeper water, inhibiting their growth by blocking photosynthesis. Additionally, it transports oxygen-rich surface water, which is abundant in oxygen, to the bottom layer where oxygen is most needed, thus resolving the hypoxia issue. By improving the hypoxic conditions at the bottom layer, it can also suppress the leaching of manganese from the bottom, making it effective as a measure against manganese. 【Features】 - Capable of suctioning a wide area of surface water. - Can efficiently circulate large volumes of water with low power consumption. - Low maintenance costs (electricity costs). - The drive unit is above the water surface, making maintenance easy (diver not required). - Completely custom-made according to the site's hydraulic environment. Support is available from design, manufacturing, and construction to maintenance, providing a seamless service.

• others

We design, manufacture, and construct various hydraulic testing equipment according to your requirements.

• others

In traditional weir systems, if you want to increase the amount (speed) of oil recovery, you need to attach a large recovery pump, which results in recovering a large volume of oil but also a large volume of water, leading to all components such as pumps, tanks, oil-water separation devices, and generators becoming larger. In this device, the aforementioned oil-water separation function is added, and by dividing the function of a large pump into a low-power drainage wing (requiring only a few tens of watts for 50 m³/h) and a small oil pump, it becomes possible to miniaturize the entire system.

• others

1. Most waste can be collected and processed. 2. Customized design according to the installation location. 3. Easy maintenance.

• others

"Aqua Fine" is a device that sends algae proliferating on the surface to deeper water depths, thereby suppressing the occurrence of algae. Additionally, by sending surface water rich in oxygen near the water's surface to the bottom layer, which requires the most oxygen, it also addresses the hypoxia problem. 【Features】 ■ Can suction a large area of surface water. ■ Capable of effectively moving a large volume of water with low power consumption. *For more details, please download the PDF or feel free to contact us.

• others

【 Features 】 1. You will be freed from the hassle of disposing of waste. This is a downstream flushing type dust removal machine, so there is no cost for waste disposal. 2. It does not allow small debris to pass through. It uses a perforated plate (punching metal) for the screen, preventing small debris from passing through. 3. Low electricity costs (energy-saving). The power required to drive the rake is about 100 watts. 4. Custom design according to the site. It will be designed according to the waterway environment. It is a fully custom-made product. - We were introduced to the horizontal scraping type dust removal machine by Hydro Power Dot Com. You can watch the video from our special site on Ipros or from the link on our company website (0:20～). - We have obtained a patent.

• others

【 Features 】 - Equipped with a flow adjustment mechanism (guide vanes). - Simple structure, making maintenance easy. The dimensions of the water turbine (diameter, width) are determined based on the flow rate and effective head. After that, a prototype is manufactured, and trial operations are conducted in a hydraulic environment similar to the actual site to confirm power generation performance. Our company has a dedicated water tank for the development of small hydropower generation systems. We use up to three 55 kW pumps as flow generation devices, combined with a 55 kW generator to conduct performance verification tests of the water turbine. By using this water tank, it is possible to confirm the power generation performance of the actual machine. By consistently handling design, manufacturing, performance verification tests, construction, and on-site adjustments in-house, we achieve low prices.

• others