Who can introduce the air shield dam

Air shield rubber dam (RiverMate? PSRD) is an updated product of cement dam, steel dam (gate) and traditional rubber dam, and it is a new hydraulic structure. This dam was developed by the United States in the 1990s. In 2008, the Ministry of Water Resources started the project of "introduction, absorption, digestion, improvement and re-innovation", and included the gas shield dam in the national promotion plan. The project was jointly completed by Shenyang Huada Polymer Materials R&D Center, He Jiang Mechanical and Electrical Co., Ltd. and Tieling Fan Er Company. 20 12 the first PSRD project in China-Tongnan heightening power generation project was successfully completed in Tongnan, Sichuan. The air shield dam inherits the essence of the traditional movable dam type, overcomes the bottleneck problem of the traditional movable dam type, and has the characteristics of simple structure, simple and quick construction, installation, use and maintenance; Outstanding flood control capability and safe and reliable operation; The water crossing height and running state are continuously controllable; It has strong dredging ability; The water blocking and water passing ability is higher; Short charging and discharging time, simple operation and management; Long service life and high comprehensive benefit; Strong earthquake resistance and strong adaptability to foundation; Good landscape effect, ecological and environmental protection.

trait

1. aging resistance, service life of more than 50 years;

2. The high pressure resistance is greater than 65438±0.2 MPa；; ;

3. Stab and scratch resistance;

4. "Green": the technical index of food hygiene is 4 orders of magnitude better than the national standard, and there is no oil leakage and mechanical impurities, which will not pollute water and surrounding environment;

5. Manual, automatic and remote water level; It can be continuously adjusted, the water flow is slowly accelerated, and cavitation, erosion and vortex are not easy to occur. Especially when the power is cut off by flood, the water level can be reliably controlled and the water can be drained safely through exhaust. After the flood discharge. Even if sludge and other sundries are deposited on the gate, it can still operate normally; Low power consumption;

6. Simple structure and low cost; Modular structure simplifies the installation, operation and maintenance process;

7. The arc door can effectively make water, ice, sundries and branches flow easily and protect the rubber dam body. The stiffened plate of the door body also has the function of diversion, which can make the water flow smooth and reduce scouring;

8. You can break the ice by yourself in winter;

9. The steel plate is supported by an inflatable bag as long as the steel plate, and only a simple foundation is needed. Can be built on the existing basis and can be used for heightening the dam;

10. It is formed by connecting a steel plate with a dam bag, with unlimited length; Moreover, there is no pier in the middle, which keeps the net width of the river; Save the opening and closing equipment and corresponding civil structures;

1 1. Even in the absence of electricity, the water level can be accurately and automatically controlled (especially suitable for hydropower generation) with high safety;

12. The earthquake resistance is stronger. There is a soft connection between the shielding plate and the foundation, which will not cause system failure and loss of normal operation ability due to foundation deformation;

13. Unattended, with low management and operation costs;

14. It has the functions of ecological adjustment, beauty, flood control and power generation.

Phosphorus application

1. Water storage: The air shield dam can increase the water storage capacity of the river in the dry season/dry season, forming a "reservoir" with good ecological benefits; Coordinate the relationship between spillway water delivery capacity and reservoir water level, and increase the water storage capacity of the built reservoir; Reduce and increase the policy and financial difficulties caused by water storage (such as floods); When the discharge capacity of the existing spillway is insufficient, this dam/gate form is adopted to maintain the crest elevation without affecting the reservoir water level and power generation efficiency.

2. Landscape: Overflow of the dam crest will form a waterfall, and the PSRD can be equipped with landscape lights and audio to create a good night scene and pleasant environment.

3. Irrigation: it can accurately control the water level and shunt flow of irrigation channels; When the channel flow changes, the water level in front of the water diversion building can be automatically controlled to ensure the uniformity of water diversion.

4. Diversion and flood discharge: it can be applied to flood diversion of rivers, so that the water flow can be automatically adjusted; During the flood period, the upstream water level is automatically controlled to keep a low level, and the silt deposited in the upstream is taken away by the flood; Or directly fall down the whole shift to ensure the flood discharge capacity of the original river.

5. Power generation: forming a high water level and increasing the power generation capacity of the hydropower station; Generally, the water depth at the top of the sluice plate is only 0.25-0.5m PSRD can create a higher water head, accurately control the upstream water level, and make the flood discharge safely during the flood season. After the flood season, PSRD will rise to store water. In addition, a stable ice sheet can be formed upstream in winter to prevent ice from blocking the water intake of the power station.

6. Fish-way and environmental protection: A series of air shield dams can be used to form stepped artificial fish-way, and the flow and velocity can be controlled to make the fish pass the dam smoothly; Controlling the upstream water level can prevent waterfowl nests from being suddenly flooded, and stable water level can improve the safety and natural landscape of the reservoir area.

7. Protection of roads and garages: PSRD can be set at the entrance of garages and subways to prevent storm floods from entering; It can also be arranged at the gap of the flood dike, and it will be closed immediately when the flood comes.

8. Navigation: PSRD is an ideal upstream and downstream gate form of shiplock, which can accurately control the upstream and downstream water levels; When the dam breaks, the steel plate covers the rubber airbag to ensure the smooth passage of the ship; The complicated gate opening and closing system is reduced, and the operation is flexible and simple; Reduce the construction and maintenance costs of ship locks.

Brief introduction of structure

Air shield dam consists of dam body (rubber airbag+steel shield), anchor, pneumatic system, automatic control system and pipeline.

1, dam

The rubber airbag is composed of multilayer skeleton fiber materials and rubber materials. The fiber material can be polyester, nylon, aramid or steel wire; The rubber material is divided into three layers: the outer rubber is EPDM with excellent weather resistance, the middle rubber is chloroprene rubber and natural rubber (CR+NR) with good adhesion, and the inner rubber is modified butyl rubber with excellent air tightness. According to the application requirements, the steel shield (including pier plate) can be made of carbon steel (which needs anti-corrosion treatment with zinc and paint), 304 stainless steel or 3 16L stainless steel. The pressure-resistant design of airbag should be 8 times greater than the service pressure (safety factor). The service life of airbags should exceed 50 years.

2. Anchor

Comprises embedded bolts, positioning metal structural members, fastening bolts and positioning metal structural members. The material can be carbon steel (which needs anti-corrosion treatment with zinc and paint), 304 stainless steel or 3 16L stainless steel. Its size, specification and shape should meet the engineering and design requirements.

3. Pneumatic system

Screw air compressors with good performance should be adopted, and the specifications should meet the engineering and design requirements, preferably one for use and one for standby.

4, automatic control system and pipeline

The automatic control system shall include PLC, lightning protection equipment and SKADA or radar hydrological monitoring. The material, size, specification and shape of the pipeline shall meet the engineering and design requirements.

Why choose our RiverMate? Air shield dam? Why choose our PSRD?

1. The only project supported by the National Fund (multiple projects) and won many government science and technology awards. The only national fund supporting key projects (multiple government funds) and multiple government science and technology awards.

2. Complete independent intellectual property rights (9 authorized invention patents, 3 computer software copyrights-PLC, SCADA, hydrological detection, and 2 trademark registrations). A complete independent intellectual property system (9 authorized invention patents, 3 computer software copyrights-PLC, SCADA, hydrological test, and 2 trademark registrations).

3. Specification for manufacture, installation and acceptance of air shield dam T/CHES112017 and specification for design of pneumatic screen door system T/CHEXXXXX-XXXXX are formulated by the company and the group standards of China Water Conservancy Society. Code for manufacture, installation and acceptance of PSRD (T/CHES11-2017) and Code for Design of Pneumatic Screen Door System (T/CHES XXXX-XXXX) are the group standards of China Hydraulic Society.

4. The first domestic construction company built the first and the first batch of gas shield dams, with more than 60 engineering cases. The first PSRD was built in China, with more than 60 engineering cases.