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Heat exchanger unit
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- Description
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Makeup pump control system
Equipped with variable frequency constant pressure water replenishment function, simple human-machine operation interface, simple and clear operation, artificial intelligence fuzzy control algorithm, requiring few parameters to be set by the user, stable pressure control, automatic control of dynamic and static pressure water replenishment pressure, can set dynamic and static water replenishment pressures, automatic switching of water shortage protection function when the recirculation pump starts and stops, and automatic pump shutdown when the water replenishment tank is short of water, The automatic water release function prevents the water replenishment pump from idling and overpressure, and automatically opens the pressure relief solenoid valve to relieve pressure when the system expands and overpressure.Circulating pump control system
Circulation pump adopts pressure control, according to the secondary network supply, return water pressure difference or water supply pressure automatically adjust the speed of the circulation pump, to ensure the stability of the secondary network outlet pressure or supply, return water pressure difference due to the use of frequency conversion control technology, high-power circulation pump start and stop are controlled by the inverter, no surge impact on the power grid, no pressure impact on the heating network, greatly reducing the pipeline. The damage rate of the valve and the capacity requirements of the power transformer of the heat exchange station are also greatly reduced, saving investment and maintenance costs.Primary network flow regulation and control system
Automatically control the valve opening of the primary network flow regulating valve based on the outlet of the secondary network to ensure stable temperature at the outlet of the secondary network.
Equipped with outdoor temperature compensation control function, it automatically adjusts the outlet temperature of the secondary network according to changes in outdoor temperature. The higher the outdoor temperature, the lower the outlet temperature of the secondary network; The lower the outdoor temperature, the higher the outlet temperature of the secondary network. The opening of the flow regulating valve can be manually adjusted and controlled on the computer controller. It can be controlled in different time periods and set the interval energy-saving mode through the human-machine interface.With remote data communication function
The control system can be equipped with an RS485 remote data communication interface, which can connect up to 64 heat exchange stations on the same line of a computer. Each station is distinguished by different station numbers, making it convenient for data exchange with the upper computer. When equipped with an upper computer, the operating parameters of the heat exchange unit can be remotely monitored, and data can be automatically recorded according to the set time. The historical operating data of the printer group can be queried at any time on the computer, and the historical temperature and pressure can be depicted and printed on the computer, making it easy to analyze and grasp the operating status of the unit and analyze and solve faults.
Equipped with temperature sensor short circuit and short line Chinese character display prompt function. Equipped with a pressure sensor disconnection system protection function, the system can automatically detect the disconnection status of the pressure sensor, preventing damage to the pipeline network and user heating equipment caused by excessive water supply pressure in the system.
Temperature sensor short circuit and short line text display prompt function. With the protection function of the pressure sensor disconnection system, the system can automatically detect the disconnection status of the pressure sensor, and prevent the excessive water supply pressure of the system from causing damage to the pipe network and user heating equipment.Automatic fault diagnosis
Overpressure protection for the make-up water pump. If the system exceeds the set pressure, the make-up water pump will automatically stop/circulate the pump. If the make-up water pump malfunctions, it will automatically switch to a backup pump to ensure normal system operation. Alarm for water shortage in the make-up water tank. The make-up water pump will automatically stop when the water tank is short of water. After normal operation, it will automatically resume/overheat alarm. If the system exceeds the set temperature, the regulating valve will be automatically closed to ensure the normal temperature of the system.
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