East Bh-Bp Variable Frequency Water Supply Equipment

• Customization: Available
• Application: Boosting Water Supply
• Power Supply: 380V×(100±10%), Three - Phase Five -
• Model NO.: BH-BP
• Ambient Temperature: 0°c to 45°c (Appropriate Measures Must Be
• Installation Location: a Place Free of Conductive Dust, Gases That Can Co
• Altitude: Not Exceeding 1000m. When It Exceeds, The Control
• Transport Package: Standard Export Plywood Case or Carton
• Specification: 1000mmx840mmx2000mm
• Trademark: EAST
• Production Capacity: 100

Product Description

Product Overview                     

• The BH - B variable - frequency water supply equipment (backpack type) adopts an integrated water - pump drive and control unit. The motor is an integrated motor with a frequency converter, which is an ultra - high - efficiency motor (IE5). It has low electromagnetic noise and high energy efficiency. Especially under low - load conditions, the driver and the motor are integrated as one unit with a high integration level, effectively addressing some pain points in current secondary water supply:
  • Low energy efficiency and high power consumption under non - full - load conditions. In civil buildings, water consumption is often in the medium and small flow range for a long time, and the used asynchronous motors operate at a low - efficiency state for extended periods.
  • Low digital integration of the equipment. The equipment uses a relatively large number of mechanical electrical components to control the water pump, resulting in weak compatibility, expandability, and usability.
  • High noise. Generally, the electromagnetic noise of the motor on the water pump is relatively large during variable - frequency operation, affecting surrounding residents.
  • Low integration level between the frequency converter and the motor. The two are separately installed, with complex wiring and poor versatility. Most manufacturers that integrate the frequency converter and the motor simply combine the frequency converter with the motor.
• The BH - BP variable - frequency water supply equipment (backpack type/new model) has the same functions as the BH - B equipment. It is an upgraded Plus version based on the BH - B in terms of appearance. The equipment is equipped with decorative enclosure panels for the pump group, which not only can prevent water splashing to a certain extent but also enhance the overall aesthetic appearance of the equipment.

Working Environment                    

• Power supply: 380V×(100±10%), three - phase five - wire system, with a frequency of 50Hz.
• Ambient temperature: 0°C to 45°C (Appropriate measures must be taken if it exceeds this range).
• Installation location: A place free of conductive dust, gases that can corrode metals and damage insulation, and explosion - free.
• Altitude: Not exceeding 1000m. When it exceeds, the control components and motors should be adjusted accordingly.

Scope of Application                    

• Secondary pressure - boosting water supply for buildings.
• Pressure - boosting water supply in urban and rural areas.
• Industrial water supply.
• Other places requiring secondary pressure - boosting.

 

Product Features                 

• Use of synchronous motors for high - efficiency energy - saving
  • With a 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.

Comparison Table between Synchronous Motor and Asynchronous Motor (Taking 7.5kW as an Example)

 

Item	7.5kW Synchronous Motor (IE5) Standard No. IEC 60034 - 30 - 2	7.5kW AC Asynchronous Motor (IE1/IE2/IE3) Standard No. IEC 60034 - 30 - 1	Remarks
Frame Number	100	132	Smaller frame number, smaller volume
Slip	None	4% - 6%
High - efficiency State	High - efficiency state under 25% - 100% of rated power	High - efficiency state under 70% - 100% of rated power	Secondary water supply pumps are in a light - load state for a long time
Weight	30kg (including driver)	54kg	Even with the driver, it is lighter than conventional motors
Power Factor	0.95	0.89	The larger the power factor, the higher the efficiency
Current	13.5A	14.8A	Smaller current, less heat loss
Efficiency	93.3%	88.1%	The efficiency of the synchronous motor reaches the international standard IE5 level
Vibration	0.72mm/s	2.1mm/s
Noise	66dB(A)	74dB(A)
Electromagnetic Noise	Almost 0 at low fre

Quiet Operation The electromagnetic noise of the motor is low at low frequencies, and the water pump runs smoothly. High Integration and High Stability The all - in - one unit features wide voltage and wide operating temperature design ranging from - 25°C to 50°C, with a protection level of IP55. The Printed Circuit Board Assembly (PCBA) of the frequency converter is coated with a thickened layer, which provides stronger protection against moisture, dust, and corrosion, thus extending the service life of the equipment. An integrated drive unit is adopted, with an integrated design for PLC, frequency converter, and motor (the frequency converter is not externally mounted). The control system and the equipment are delivered as a whole from the factory. No on - site wiring is required, which shortens the construction period.

Product Performance and Functions                 

Performance and Function	Brief Description
Performance Parameter Range	Flow range: 4 - 168m³/h, pressure range: 0.2 - 2.0MPa
Constant - Pressure Accuracy	≤0.01MPa
Constant - Pressure Mode	Constant - pressure control at the equipment outlet or variable - pressure constant - pressure control in different time periods
Constant - Pressure Stabilization Adjustment Time	≤5s
Control Operation Mode	One - to - one control for pumps, multiple pumps operate at the same frequency with balanced efficiency
Human - Machine Interface	Digital instruments, true - color touch screens
Protection/Alarm	Short - circuit, overload, over - current, and phase - loss protection, indicator light alarms, and the frequency converter has a perfect self - protection function
Automatic Reset Function	When the fault is recovered, the equipment automatically starts while in the shutdown protection state
Timed Pump Change	Pumps operate in a timed rotation mode to ensure balanced running time
Faulty Pump Blocking	The faulty pump automatically exits the circulation operation and sends out corresponding fault information
Pipe Burst Protection Function	Automatically detects when the pipe network pressure is too high or there is a serious pipe burst and leakage, shuts down the equipment and alarms simultaneously
Water Quality Monitoring (Optional)	Monitors the residual chlorine, turbidity, and pH indicators of water samples in real - time. Alarms when there are abnormalities and shuts down the equipment for protection when dangerous values are reached
Flow Meter (Optional)	Detects the equipment flow, can give early warnings for pipe bursts and participate in equipment control
Video (Optional)	Monitors the equipment via video
Electrical Parameter Monitoring (Optional)	Monitors current, voltage, and energy consumption
Equipment Material	The flow - through parts of pipes and valves are made of food - grade 304 stainless steel and rubber materials
Protection Level	The integrated drive unit has an IP55 protection level, and the control cabinet has an IP55 protection level

Note:

The number of applicable users below is calculated with reference to Technical Measures for Design of Civil Building Engineering - Water Supply and Drainage. Among them, the number of water - using people per household m=3.5; the hourly variation coefficient Kh=2.5; the daily water consumption per person is 200L/(person·d); corresponding to the setting standard of sanitary appliances for Class - II ordinary residential buildings, the water supply equivalent number Ng of sanitary appliances set in each household is 4; the water - using hours T=24h. And the calculated value is only for residential water use, excluding facilities such as cultural and educational, catering, entertainment, shops, medical and health care, and community management supporting the residential area, as well as water for greening, landscape, road and square sprinkling, and public facilities.

Production Plant                      

Main Processing Equipment                  


Electrophoresis and coating line                


Company Profile