Hangzhou Hangkai New Energy Technology Co. Hangzhou Hangkai New Energy Technology Co., Ltd. (Hangkai Technology for short, stock code: 835561) is a wholly-owned subsidiary of Hangkai Group. Established in 1958, Hangkai Group (former Hangzhou Switch Plant) has many subordinate companies, mainly including traditional manufacturing companies, technology companies and incubation high-tech companies. Hangkai Technology is a national high-tech enterprise integrating secondary water supply equipment, integrated prefabricated pump station for urban drainage, water treatment equipment, smart water affairs and other softwares and hardwares. Wastewater Lifting Pump Station : Core competitiveness of integrated prefabricated pump station for urban drainageI. Technical parameters:Capacity : 0－200000ｍ３／ｄPressure range: 0－1.0ＭｐａControl power: ≤200ｋｗAmbient temperature: 0-90℃Power source: 380V╳（1±10%）Cylinder volume: 4.4m3-600 m3 II. Description of model III. Scope of application:Collection and transport of sewage in living areas or rural communitiesCollection and transport of sewage in urban sewage treatment plantsCollection and transport of rainwater in urban low-lying areasConstruction and transformation of municipal sewage pipe networksTransformation and expansion of old pump stationsWater cycle of lakesDual system technology of control system The effective volume of cylinder of integrated prefabricated pump station for urban drainage is limited, generally 1/4 of maximum pump capacity. The requirement for stability of control system is very high as the sewage just stays temporarily in the cylinder. Huge safety hazard will be caused once the system breaks down.Our company develops the most advanced dual PCL control mode, the purpose is to utomatically switch into standby PLC system for control in case main PLC system breaks down . It will improve stability of equipment effectively. Automatic technology for dredging cylinder bottomSolenoid valve is installed at the opening of outlet line of submersible sewage pump, and the line is introduced into the cylinder bottom. It will automatically run for 1min whenever the submersible sewage pump is started to suspend the silt at the bottom in water for the submersible sewage pump to transport the silt to sewage pipe network. Dual control technology of pulverizing screenIntelligent garbage detection device is installed onto water inlet of glass fiber reinforced plastic cylinder, and radar detection technology is used. The device will transmit the signal to control system and the pulverizing screen will be started when the garbage piles up to certain height. The pulverizing screen stops if no garbage is detected. This technology not only saves energy, but also greatly extends the service life of pulverizing screen. Automatic cleaning technology of floatageThe density of some garbage in the glass fiber reinforced plastic cylinder is lower than that of water. It floats on the water after entering the cylinder and accumulates much and affect effective volume of the cylinder and stability of equipment if not timely cleared. The stop signal of submersible sewage pump will drop to an ultralow liquid level to stop the pump and transport the floatage to the sewage pipe network when the floatage piles up to certain height. Dual control technology of submersible sewage pump The control system normally controls with liquid level floating ball, and automatically controls by liquid level detection with liquidometer to greatly improve stability of equipment if the floating ball breaks down. Main components of integrated prefabricated pump station for urban drainage Control system Dual system control is used. The probability of fault of PLC is a little higher in the whole control system. Our company adopts dual PCL control system and other main electrical elements are from Schneider, featured by high stability. Supporting water pump Coupling device Dual sealing of metallic hard contact and soft rubber ring is used in design of structure of joint between pump outlet and coupling device, and should guarantee sealing safety when the pump is lowered or lifted without scraping. Pulverizing screenPulverizing screen — sewage enters the cutting area of pulverizing screen with garbage for pulverization. The biaxial pulverizing blade group rotates in opposite direction to pulverize solid garbage into particles of 6-12mm, which flow out of the pulverizing screen. Basket- type grille Patent of integrated prefabricated pump station for urban drainage of Hangkai Technology Field installation diagram of integrated prefabricated pump station for urban drainage
Taxonomy
- Wastewater Disposal
- Wastewater Use
- Sewage Treatment
- Industrial Wastewater Treatment
- Wastewater Collection
- Wastewater Treatment Plant Design
- Water & Wastewater Treatment
- Water & Wastewater Operations
- Water & Wastewater