Sewage Containment Floaters for Hydro-power Station

Sewage Containment Floaters for Hydro-power Station

In order to adapt to the installation and use of the sewage interception drainage system of hydropower stations with large spans on the water, it is recommended to use the middle of the water area as a positioning point when the span reaches several hundred meters, increase the use strength of the positioning points at both ends, and increase the overall strength. Between the spans of 1 to 2 hundred meters in the water area, the distance should be appropriately extended to increase the length of the fox line, which can not only ensure the softness and enhance the impact ability, but also make the debris and garbage rushed down from the upstream gather in the arc line to facilitate salvage.

It has a reasonable structure, water surface sewage interception drainage specifications, tight net knots, accurate size, bright colors, and the longest point of sewage interception buoys. The buoy-type sewage interception drainage system is connected by a series of metal rods into a rack and erected on the water surface. The size and spacing of the metal rods depend on the type, volume and number of floating objects. In reservoirs with large water level changes, the buoy-type sewage interception drainage system is often made into a chain-type flexible rack, which floats on the water surface with the help of buoys. In water intake hubs with small water level changes, the sewage interception buoy can use a fixed buoy-type sewage interception drainage system.

Features of the river garbage interception solution are as follows:

1. The material is eye-catching in color, the float is shiny, has a large buoyancy reserve, is easy to deploy, and has strong oil retention performance.

2. The upper and lower parts of the garbage interception buoy are equipped with steel wire ropes, reinforcement belts and tension counterweight chains as longitudinal force-bearing components, and the fence has high pulling performance. The surface is smooth, which is conducive to oil conduction and easy to clean.

The use of floating buoys is diverse, and the use environment and force mode are different, resulting in different shapes of floating products.

Usually, we need to consider the displacement volume of the float, that is, how much buoyancy the float can provide. The buoyancy is completely determined by its volume and its own weight. The displacement volume is the volume of the float itself, but one factor must be considered, that is, how high the float needs to float out of the water when used. When calculating its displacement volume, it is necessary to subtract the part of the volume exposed above the water.

Secondly, we need to consider its force structure. No matter what purpose it is used for, the important role of the float is to provide buoyancy, which requires its buoyancy to be transferred to the object to be floated in a suitable way. Because the float is usually a plastic structure, a suitable stable and reliable transfer mode must be designed, otherwise it is easy to cause damage to the float itself during later use, and even cause the floated object to fall off the float.

The PE sewage interception buoy for hydropower station is installed at the front of a certain water area before the water inlet, and is used as a rack-type sewage interception equipment floating in the water flow.

In the river with more floating debris, if only the garbage rack is set, the dirt in front of the rack will accumulate in large quantities. If it is not cleaned in time, it will block the holes of the rack and affect the water diversion. The reservoir sewage interception float is set in front of the garbage rack. The combination of the two has a good effect.

The PE sewage interception buoy for hydropower station is made of food-grade imported polyethylene with a long life span. The interior is filled with high-quality polystyrene foam. The buoy has strong toughness and high shell strength. Even if it is hit by strong trees and debris during the flood season, it will not break! High temperature resistance of 80℃ and low temperature of -60℃, the material is added with UV protection, and the service life can reach more than 15 years. No maintenance management is required whether it is during the flood period or the freezing period!

The PE sewage interception buoy for hydropower station is made of linear medium-density polyethylene plastic by rotational molding, and can be filled with polyurethane foam plastic. The actual service life of the domestic certificate has reached 8 years and is still in use, depending on the working conditions. The float is resistant to motor oil, gasoline, and diesel. The surface of the float is smooth and wear-resistant, and it can be dragged on the sandy beach without damage. The product is impact-resistant and can fall from a height of three meters with water without breaking.

Another similar application is for uclear power plant, while cooling water of nuclear power plant's circulation system and the cooling water of key equipment all use the water intake of the nuclear power plant as water resources. The operation of the water intake directly affects the reliable operation and stability of the power plant.

Water intake blockage has occurred in many places, causing power plant generators to reduce output or shut down, resulting in large property losses and endangering the safety of nuclear power plants.

The basic solution is to set up a pollution net with a buoy positioning device in front of the nuclear power plant's water diversion channel, and set anchor blocks and anchor piers at the bottom and both sides of the net. This method has a simple structure, low cost, and easy replacement. It can effectively prevent various large wastes and dirt from entering the pump room water intake and prevent the pump room water collection grid and filter drum from being blocked.

Model and Specification