4results about How to "Play a drainage effect" patented technology

The utility model relates to the technical field of PVC (polyvinyl chloride) floors, and discloses an antiskid wear-resistant PVC outdoor floor which comprises a PVC base layer and a surface layer, a supporting bottom layer is arranged at the bottom end of the PVC base layer, a reinforcing grid layer used for increasing the structural rigidity of the PVC base layer is arranged between the PVC base layer and the surface layer, and an ultraviolet curing layer is arranged on the surface layer. Heightening pads are fixedly connected to the periphery of the bottom end of the supporting bottom layer, the supporting bottom layer comprises a base stabilizing layer fixedly connected to the bottom end of the PVC base layer, a plurality of reinforcing ribs are arranged in an inner cavity of the base stabilizing layer, a plurality of supporting rods are fixedly connected to the bottom end of the base stabilizing layer, and a plurality of buffer columns are arranged among the reinforcing ribs; rigid supporting and impact absorbing performance of the floor are improved through the reinforcing ribs and the buffer columns, meanwhile, the distance between the floors is increased through the heightening pads and the supporting rods, the drainage effect is improved, and the situation that due to the fact that the floors are irradiated by sunlight, the surfaces of the floors fade, deform or age is avoided through the ultraviolet curing layers and the reinforcing grids.

The utility model relates to the field of water conservancy and hydropower facilities, especially to a water and mud flow prevention and control system of hydropower station ditch, which realizes the cooperative prevention and control of ditch water and mud flow between adjacent branch ditches, comprising a first branch ditch, a first check dam and a first water dam are sequentially arranged along the water flow direction of the first branch ditch; comprising a second branch ditch, a second check dam and a second water dam are sequentially arranged along the water flow direction of the second branch ditch; comprising a first drainage hole, the first water inlet of the first drainage hole is arranged between the first check dam and the first water dam, and the first water outlet of the first drainage hole is arranged between the second check dam and the second water dam; comprising a second drainage hole, the second water inlet of the second drainage hole is arranged between the second check dam and the second water dam, and the second water outlet of the second drainage hole is communicated with a downstream river channel. The utility model is especially suitable for the hydropower station ditch management engineering in high mountain and valley area.

The application relates to a plasma generating device, belonging to the technical field of plasma. The device comprises multiple plasma generators (11), each of which is provided with a plasma tube (29). The plasma tube (29) comprises an outer electrode tube (21) and an inner electrode tube (24), and the outer electrode tube (21) and the inner electrode tube (24) are connected to two poles of a high-voltage power supply. The device is characterized in that: the positive electrode tube and the negative electrode tube are sleeved to form a tubular discharge area, the discharge area is closed at both ends to form a gas fluid channel (28), and the outer electrode tube (21) is provided with a flow port (20) for the gas to enter and flow out of the fluid channel (28). In the plasma generating device, the fluid channel is formed in the plasma tube and is closed at both ends, and the fluid channel is the discharge area formed by the positive electrode and the negative electrode, so that the ionization efficiency of air passing through the discharge area can be greatly improved, the density of generated plasma is higher, and the plasma is more stable.