Product Overview:
The frequency conversion control equipment is a new generation of energy-saving water supply equipment developed and produced by our company. Its core is AC frequency conversion technology and microcomputer technology. The closed-loop control system is composed of Swiss ABB inverter or other well-known brand inverters, intelligent controllers, pressure sensors, and our company's SLS, SLW, GDL, DL series water pumps. This device can automatically adjust the speed and number of running water pumps to maintain the set pressure and required flow rate of the water supply network, thereby achieving the goal of improving water supply quality and energy efficiency. The self-priming pump truck air filter can replace high-level water tanks, water towers and other facilities, as well as valve adjustment measures, to improve the automation level of water supply and the quality of drinking water for residents, prevent secondary pollution, and is an ideal modern water supply equipment.
Product features:
1. Efficient and energy-saving
The system can set the pressure as needed, and automatically adjust the water pump speed and the number of running water pumps according to the set pressure, so that the equipment operates in the most efficient and energy-saving state.
2. Stable water supply pressure
The system implements closed-loop control and can automatically adjust the difference between the system pressure and the set pressure to maintain a constant system pressure.
3. Easy and simple operation
The system is automatically controlled by a frequency converter or a combination of a frequency converter and an intelligent controller, with simple operation.
4. Extend the lifespan of motors and water pumps
All pumps are soft started, eliminating the impact current during start-up and extending the service life of the equipment; Each pump has a soft start cycle to prevent rusting or wear due to prolonged use or frequent use.
5. Comprehensive protection functions
It has multiple protections such as short circuit, overcurrent, overvoltage, overheating, overload, etc. If there is a fault in the operation of the water pump, it will automatically stop working and output an alarm; The system has functions such as self checking, fault diagnosis, fault memory, fault display, and automatic starting of backup pumps.
6. Automatic operation function of small flow auxiliary small pump
It can be equipped with an auxiliary small pump to automatically turn off the main pump and turn on the auxiliary small pump when the system operates at night or under other low flow conditions, thereby avoiding waste caused by turning on high-power water pumps.
7. Variable frequency regulation effectively avoids the phenomenon of 'water hammer'.
8. The programming and setting of frequency converters and controllers are convenient, simple, and easy to master.
9. Equipped with manual switch control, it can ensure the safe and continuous operation of the equipment.
10. The communication serial port can be connected to a computer to achieve direct control of computer networking.
Application scope:
(1) Urban residential areas, high-rise building water supply, hotels, restaurants, and larger buildings' domestic water supply and fire water supply
(2) Various types of water plant pump stations, oil pipeline systems
(3) Cold and hot water circulation system for heating and air conditioning systems
(4) Renovation of old water supply system (air pressure, water tower, high water level water tank water supply)
(5) Sewage treatment system
(6) Industrial boiler water replenishment system
(7) Agricultural irrigation, sprinkler irrigation, and musical fountains, etc
Technical indicators:
1. Flow regulation range: 0-5000m3/h
2. Pressure regulation range: 0-2.5MPa
3. Motor capacity control:
Two phase: AC200V-240V (power supply single-phase AC220V) 0.12-2.2KW Three phase: AC380V-480V 0.37-315KW
4. Pressure regulation accuracy:< 0.01MPa
5. Pressure stabilization time:< 15S
6. Control methods: outlet constant pressure, outlet constant temperature, constant differential temperature, constant differential pressure, given output, etc
7. Operation mode: one for use and one for backup, two for use and one for backup, three for use and one for backup, or a combination of multiple pumps
8. Protection level: IP43
9. The design and manufacturing comply with the JG/T3009-93 standard