The nation's first DC network power propulsion system delivery

On November 18th, the Zhenjiang Steam Ferry Terminal was lighted up, and the first ship of the DC network electric propulsion system with domestic independent intellectual property rights - Zhenyang Steam Turbine No. 3011 Ferry held a grand delivery ceremony, 711 Ai The deputy director of the steel attended the delivery ceremony.
The nation's first DC network power propulsion system delivery
In recent years, the country's requirements for energy conservation and emission reduction of ports and inland vessels have been continuously improved. The new DC network electric propulsion system provides new technical directions and means for energy saving and emission reduction for inland river steam and shipping vessels. The No. 3011 ferry of Zhenyang Steamway has a tonnage of more than 700 tons, a length of 90 meters and a width of 15.4 meters. It is one of the largest steam ferries on the Yangtze River.

The ship adopts the complete set of DC network electric propulsion system provided by 7.1, including variable speed unit, DC frequency conversion switchboard, propulsion motor, energy storage unit, power management system and propulsion control system, which greatly optimizes and enhances the The ship's energy saving and environmental protection. According to reports, after using the whole set of DC network electric propulsion system, the weight of the equipment is reduced by 40%, which can save about 15% compared with the traditional ferry.

The project took only four months from the signing of the contract to the delivery of the equipment, and the shipyard commissioning took only one month. This aspect reflects the technical reserve and technical research ability of the electric power propulsion system of the DC network in July 1st. On the other hand, it shows the spirit of the professional team's professional hard work and hard work. Zhenyang Steam and Zhenjiang Shipyard spoke highly of the system integration technical capabilities of the 711 system and the hard work spirit of the project team.

Metal Body Square Water Cooling Tower

This series of products run stable, low noise, energy-saving, in office buildings, shopping malls, hotels, residential areas and other central air-conditioning supporting the use of better results.

The company's standard cooling tower according to the international design conditions design, can also provide customers with non-standard operating conditions or specific sizes under the special, special design.

The circulating water pump suction port shall be located below the water level of the cooling tower catchment basin, and the cooling tower outlet pipe shall not be allowed to be higher than the maximum water level of the catchment basin.
Pipe mounts should be pipe racks and cooling towers should not be allowed to directly bear the weight of the pipes.

The rehydration pipe of the cooling tower should be provided with a support stand to avoid vibration of the pipe when the float valve is rehydrated.

Rehydration pressure should be below 5m water pressure, national standard
The flannage pressure is 1.0Mpa.

When two or more units are assembled, our company will provide a connecting balance tube to balance the chassis water level. The tower top inlet should be set with a conditioning valve in order to enter each
.The water level of the tower is uniform.


The noise is measured at dm1.13VL-W at the equivalent diameter of the cooling tower (Dm1.13VL*W), 1.5 meters above the ground height, wherein L and W are the shape rulers of the tower
inch long and wide).

The use of cellular continuous blister series of diversion,heat dissipation, water collection three-in-one native filler, the whole suspension, gravity cloth water, low drop of water, with cold effect
High, low energy consumption, less drift water, less noise and so on, floating water rate is less than 0.001%.

When connecting different types of towers, the bottom basin water level height of different types of towers must be taken into account, and the base height must be adjusted to maintain the water level balance of the towers.

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Wuxi Ark Fluid Science Technology Co., Ltd. , https://www.arkfluid.com