Product Overview
Secondary water supply is an important part of urban water supply and belongs to urban infrastructure engineering. Secondary water supply equipment is crucial infrastructure for ensuring residents' water needs. Strengthening secondary water supply infrastructure construction is the key to solving the "last mile" water supply problem and safeguarding the safety of urban and rural residents' domestic water.
Based on mature market technologies and products, and combined with the customized demands of the domestic secondary water supply market, Shanghai Dongfang Pump Industry has launched the direct - connected (non - negative pressure) water supply equipment. This equipment is a new type of non - negative pressure superimposed water supply product independently developed and manufactured by Shanghai Dongfang Pump Industry, achieving integrated design with functions such as outdoor protection and heat insulation. The direct - connected (non - negative pressure) water supply equipment is directly connected to the municipal water supply network, with dual - pressure control, real - time monitoring of inlet and outlet water pressure changes, intelligent pressure compensation, intelligent control, and ensuring equipment safety, hygiene, and energy conservation.
Product Features
- CHDF In - line Water Pumps: The unit is equipped with CHDF in - line water pumps, which are highly efficient, have a compact structure, and operate with low noise.
- Constant Pressure Control (Direct - connected, Non - negative pressure): The water supply equipment can, according to the changes in the outlet and inlet pressure collected by the pressure monitoring instruments, perform PID calculations, and utilize the existing pressure in the pipe network to achieve "less pumping with more supplement", thus saving energy and being highly efficient.
- Intelligent Control and Protection: The system can achieve fully automatic unattended operation and control, with functions such as manual/automatic switching, high - low voltage protection, phase - loss protection, over - current protection, under - voltage protection, and over - temperature protection.
- Smart Control Technology: The large - screen human - machine interaction interface provides a clear view of the status. With touch control, operation is just a touch away.
- Safety and Hygiene: All the valves equipped in the unit adopt materials that meet water quality standards.
- Noise Reduction and Isolation System: The exterior adopts noise - reduction design, which can significantly reduce the interference of the water pump's operation on the external environment.
- Ventilation and Heat Dissipation System: An integrated ventilation system ensures good indoor ventilation, maintaining a good environment.
- Reasonable Design and Compact Structure: The modular integrated design of the unit is reasonable, ensuring efficient secondary water supply equipment inspection and maintenance convenience.
- Cost - saving in Investment: Due to the use of a small - footprint modular design, it saves on land occupation costs and reduces the initial infrastructure investment in the long run.
Model Definition
Product Specifications and Performance
| Specification Model |
BW-Z(I) Standard Equipment Series |
| Water Supply Flow |
1 - 22m³/h, determined by the equipment model |
| Water Supply Pressure |
0.15 - 0.4MPa, determined by the equipment model |
| Pressure Boosting Range |
40% - 100% of the original head (full - frequency conversion control) |
| Constant Pressure Accuracy |
≤ 0.01MPa |
| Stabilization Time |
≤ 5S |
| Operation Modes |
Emergency stop operation, manual operation, automatic control, centralized control (bus remote control) |
| Start - stop Mode |
Soft start and stop with frequency conversion, no disturbance to the pipe network pressure |
| Control Mode |
Outlet pressure control of the equipment or automatic frequency conversion control (analog quasi - constant pressure control, optional, can be set) |
| Operation Mode |
OB (full - frequency conversion operation) |
| Human - machine Interface |
Digital instruments, color liquid - crystal touch screen |
| Protection/Alarm |
Short - circuit, overload, phase - loss protection, indicator light alarm. The frequency converter has more comprehensive self - protection |
| Fault Countermeasures |
Pumps are standby for each other |
| Equipment Material |
The flow - through parts (pumps, valves, tanks, pipelines) are made of food - grade 304 stainless steel |
| Protection Level |
Outdoor cabinet |
| Working conditions |
Installation Conditions |
Concrete foundation with sufficient load - bearing capacity |
| Power Supply |
380V×(100 ± 10%), three - phase five - wire system |
| Environment |
Outdoor installation, 4°C - 40°C (Customized cabinets are required when the temperature is below 4°C). No flammable or explosive gases. |
| Altitude |
Below 1000m |
Equipment Performance Parameter Table
Equipment Outline Dimension Diagram
Notes
- The equipment dimensions are calculated based on the company's standard - configured CHDF pumps. If other pump types are selected, they can only be ordered after being reviewed by the technical department.
- The municipal water inlet pressure of the equipment should not exceed 0.4MPa. If it exceeds this value, a new design is required.
- The nominal diameters of the inlets and outlets in the sample are calculated without considering the standby flow, and the pump configuration is based on 1 in - use pump and 1 standby pump.
- The flow - through components of the equipment in the sample are made of all - stainless - steel materials.
- The equipment cabinets in the sample are made of common materials, which are treated with acid washing, phosphating, and paint baking for anti - corrosion purposes, ensuring a long service life.
- The standard configuration of the equipment in the sample does not include thermal insulation. In cold northern regions, specific requirements should be indicated and customized.
- The connection method for the outline dimensions in the sample is flange connection, with a pressure - bearing capacity of 1.6MPa.
- The standard configuration of the equipment does not have remote monitoring functions. Videos need to be viewed on - site. If remote control and monitoring functions are required, customization should be made and specified during the ordering process.
Production Plant
Main Processing Equipment
Electrophoresis and coating line
Company Profile
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