Bw-G (I) B Tank Type Pipe Network Stacked Water Supply Equipment¹

Product Description Equipment Qualifications                           The EAST - brand BW - type pipe network superposition (non - negative pressure) water supply equipment has obtained one invention patent (Patent No.: ZL200410084385.0) and one utility model patent (Patent No.: ZL200420110060.0).The EAST - brand BW - type pipe network superposition (non - negative pressure) water supply equipment has been recognized as a high - tech achievement transformation project in Shanghai (Certificate No.: 20050259).For the EAST - brand BW - type pipe network superposition (non - negative pressure) water supply equipment, when the flow rate of 2 pumps is ≤15m3/h and that of 3 pumps is ≤50m3/h, it has passed the CQC China energy - saving certification and obtained the certificate.The EAST - brand BW - type pipe network superposition (non - negative pressure) water supply equipment has been tested by the Shanghai Academy of Preventive Medicine. The test results of the measured items comply with the hygienic requirements in the Hygienic Safety Evaluation Specifications for Drinking Water Conveyance and Water Distribution Equipment and Protective Materials.The EAST - brand BW - type pipe network superposition (non - negative pressure) water supply equipment has obtained the Sanitary Permit for Domestic Products Related to Drinking Water Hygiene Safety in Shanghai.The EAST - brand BW - type pipe network superposition (non - negative pressure) water supply equipment has passed the inspection by the Shanghai Quality Supervision and Inspection Center. The report inspects and appraises multiple aspects including the water supply equipment's operation capacity, control cabinet requirements, display and functions, grounding measures, dielectric strength, insulation resistance, equipment startup, protection functions, anti - system interference functions, non - negative pressure functions, small - flow pressure maintenance, and full - closure. The results show that all indicators meet the standard requirements.Working Environment                            Power supply voltage: 380V×(100±10%), three - phase five - wire system.Installation location: A place free of conductive dust, gases that can corrode metals and damage insulation, and explosion - free.Ambient temperature: +4°C to +40°C (Appropriate measures must be taken if it exceeds this range).Relative air humidity: 20% - 90% (at 20°C), without condensation.Altitude should not exceed 1000m. When it exceeds, the control components should be adjusted accordingly.Scope of Application                    The pressurized water supply equipment is widely applicable to water supply for high - rise buildings with good municipal conditions.It is suitable for scenarios such as residential communities, public buildings, schools, hospitals, and the renovation of old pump houses.Model Definition                      BW Control Cabinet Category:A: Type A configurationT: Special configurationPump - matching Series:No mark: DFCL pumpT: Special configurationNumber of Main Pumps: in unitsPower of Main Pump: kW (per single pump)Head of Main Pump: in metersSystem Flow: in m3/hG(I): Tank - typeG(I)B: Backpack - style tank - typePipe Network Superposition (Non - negative Pressure) Water Supply EquipmentExample: BW - G(I)B 36/76 - 7.5 - 3 - A indicates a tank - type pipe network superposition (non - negative pressure) water supply equipment (backpack - style), with a system flow of 36m3/h, a main pump head of 76m, equipped with 3 DFCL pumps with a power of 7.5kW each, and a Type A control cabinet (For the configuration of the control cabinet, refer to the control section).System Workflow Diagram                           The control system uses the analog input - output unit to monitor the pressure of the equipment's main inlet pipe and the user's pipe network in real - time. It converts the pressure signals into digital signals and stores them in registers. Then, it performs PID closed - loop calculations by comparing these signals with the pre - set pressure values (set on the human - machine interface and stored in registers). The calculation results are converted into analog quantities to control the output frequency of the frequency converter, thus regulating the operating speed of the water pumps. When the water supply from the municipal network is greater than the users' water consumption, the system automatically adjusts the speed of the water pumps according to the pressure of the users' pipe network to ensure a constant pressure in the users' pipe network. When the water supply from the municipal pipe network is less than the users' water consumption, the system promptly reduces the speed of the water pumps and controls the water supply volume to ensure that the water supply equipment does not create negative pressure in the municipal pipe network.Description of the working principle               Serial NumberAccessory NameSerial NumberAccessory NameSerial NumberAccessory NameSerial NumberAccessory Name1Control Cabinet4Inlet of Steady Flow Tank5Steady Flow Tank6Anti - negative Pressure Sensor7Vacuum Suppressor8Butterfly (Gate) Valve9Bypass Straight - through Pipe10Check Valve11Pneumatic Tank14Dirt Discharge Plug of Steady Flow Tank15Safety Valve17Water Pump19Overpressure Protection20Pressure Sensor    Non - standard Optional Accessories2Flowmeter (Optional)3Pipe Network Protector (Optional)12Filter (Optional)13Backflow Preventer (Optional)15Soft Connection at Tank Outlet (Optional)16Disinfection Interface (Optional)18Soft Connection at Pump Inlet and Outlet (Optional)  The water supply equipment utilizes the existing pressure of the municipal pipe network to supply water with superimposed pressure without affecting surrounding users (supplying water in proportion to the inflow), achieving energy - saving. The water from the municipal pipe network is directly connected to the inlet of the equipment, and the outlet of the equipment is linked to the user's pipe network. The entire system is isolated from the outside. Meanwhile, the equipment meets performance standards, maintains a constant water supply pressure, runs stably without leakage, thus conserving water resources and ensuring the absolute safety and pollution - free nature of users' water supply.The steady - flow compensation tank is equipped with an anti - negative pressure sensor, a vacuum suppressor, and a dirt discharge port at the bottom. The anti - negative pressure controller is used to monitor the pressure of the municipal pipe network in real - time. If required by users, a disinfection interface can also be set up in the system to facilitate the inspection work of the health supervision department and the disinfection of the interior of the system.During low - water - consumption periods, when the water supply and pressure from the municipal pipe network fully meet the requirements of the user's pipe network, the control system puts the water pumps into a sleep energy - saving state or a short - term low - speed operation state for a single pump to replenish pressure.During high - water - consumption periods, when the pressure of the municipal pipe network is insufficient but the water supply can meet users' needs, the pressure of the pipe network is directly superimposed on the inlet of the water pumps. The microcomputer control system adjusts the rotational speed of the water pumps and the number of pumps in operation according to users' water consumption, and supplements the insufficient part of the water supply in the pipe network to ensure a constant - pressure water supply to users.When users' water demand increases and the water supply in the pipe network is less than the demand, the control system will monitor the inlet water pressure value of the pipe network in real - time. Through computer calculus and fuzzy control, it promptly reduces the rotational speed of the water pumps and controls the water supply volume to ensure that the water supply equipment does not create negative pressure suction on the municipal pipe network and does not stop supplying water due to insufficient water supply.As the pressure of the municipal pipe network gradually drops to the pre - set protection pressure value, the microcomputer control system also gradually reduces the rotational speed of the water pumps until the system automatically stops operating. When the pressure of the municipal pipe network recovers to an allowable level, the equipment automatically resumes operation.Product Features                         Ensure Safe and Hygienic Water SupplyHigh Regulating and Energy - storing Capacity: The reasonable design of the tank structure endows it with high regulating and energy - storing capabilities, enabling short - term compensation for the municipal pipe network.Fully Enclosed Operation: With stainless - steel SUS304 food - grade pipes, the equipment operates in a fully enclosed manner, free from leakage and secondary pollution.Overpressure Protection Device: The equipment is equipped with an overpressure protection device. It will automatically stop in case of overpressure or pipe bursts. A water immersion sensor (optional) monitors water accumulation in the pump room and triggers automatic shutdown and alarms, protecting the pipeline and water - use safety.Ensure Stable Product QualityThe pictures display various manufacturing equipment and component details.Flexible manufacturing is carried out using robots and numerically - controlled equipment, surpassing traditional welding, cutting, and bending techniques to ensure product quality reliability and stability.The company, in accordance with the quality management system, strengthens the full - process quality control over four major processes: resource management, management responsibilities, product realization, and measurement, analysis and improvement. It also promotes product standardization and institutionalization, thus ensuring product reliability.The company, in line with the quality management system, strengthens full - process quality control over four major processes: resource management, management responsibilities, product realization, and measurement, analysis and improvement. It also promotes product standardization and institutionalization, thus ensuring product reliability.Low Equipment InvestmentThere is no need to build water storage tanks or reservoirs, nor to install large - scale pneumatic tanks, which saves investment. Moreover, since the pressure of the primary water supply from the tap water network can be fully utilized, the type selection of the booster pumps can be downsized, reducing equipment investment.Low Operating CostsDue to the relatively small - sized booster pumps and the possibility of using multiple - pump associated water supply, during low - water - consumption periods, the equipment can directly utilize the pressure from the municipal pipe network for water supply, and it doesn't need to start pumps or only needs to start one pump to meet water demand. When water consumption is high, the remaining pumps are then started. Therefore, the equipment consumes less energy during operation, which can reduce operating costs.Simple Management and MaintenanceThe equipment is fully automatically controlled by a microcomputer for variable - frequency speed regulation. It automatically stops when there is a power outage and automatically starts when the power is restored. The complete fault detection, diagnosis technology, and alarm functions make the management and maintenance of the equipment extremely simple.Excellent Water Supply Pumps and Good Overall PerformanceThe equipment uses multi - stage all - stainless - steel booster pumps. The pump casings, impellers, and main components are made of food - grade stainless - steel materials through stamping or casting. The flow channels are smooth, energy - efficient, and operate stably with low noise. The overall performance of the equipment is excellent, making it an ideal green, environmentally - friendly, and energy - saving water supply device.          Compared with BW - G(I), BW - G(I)B also has the following characteristics:Using synchronous motors for high - efficiency energy - savingThanks to the precise motor thermal simulation platform and three - dimensional flow field analysis, it has an IE5 energy - efficiency level, which is higher than that of asynchronous motors, achieving an energy - saving rate of over 5%.The water supply equipment is in a low - load state 60% of the time. The synchronous drive integrated unit remains highly efficient under low - load conditions, such as when the occupancy rate of new residential buildings is low or during low - water - consumption periods, saving more than 20% energy in these situations.It adopts full variable - frequency control. The optimal efficiency wheel value algorithm for parallel pumps ensures that a single pump in the secondary water supply system operates in a highly efficient state, enabling the system to save more than 15% energy.The precise synchronous machine parameter model ensures that the output current is minimized when operating under the same load, reducing the copper loss of the motor and further saving energy.   Production Plant                      Main Processing Equipment                  Electrophoresis and coating line                Company Profile                

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