The differential compensation box type non negative pressure water supply equipment is developed on the basis of non negative pressure (pipeline stacking) water supply equipment and constant pressure variable frequency water supply equipment, combined with their respective advantages, and equipped with stainless steel water tanks, flow proportional control valves, anti negative pressure, anti backflow, anti water quality deterioration and other control devices. The differential compensation box type non negative pressure water supply equipment mainly uses a water tank as a backup water source for the entire system. When the pressure in the tap water network is insufficient or there is no water, it automatically puts into use to supplement the water supply, ensuring the stability and continuity of the water supply. After the pressure in the water supply network is restored, it automatically switches to the normal stacked water supply mode, and the water tank automatically replenishes water. When the water supply pressure in the water supply network is normal, it automatically cycles and cleans the water stored in the box at regular intervals to ensure the quality of the water supply.
Characteristics of differential compensation box type non negative pressure water supply equipment:
Energy saving
This device can fully utilize the pressure of the municipal pipeline network to increase pressure, and make up for the difference as much as possible.
Environmental Protection
The pressurized water tank adopts a fully enclosed design, and the ventilation holes are equipped with reciprocating suction and exhaust filtering devices to effectively filter dust and debris. A water intake device is installed at the bottom of the water tank to effectively increase the water intake area and ensure the freshness of the water quality.
Unique configuration
The water tank is equipped with an intelligent boosting device to ensure stable pressure in the user's pipeline network after switching, and the water pump operates in the high-efficiency zone. The water source in the water tank is regularly circulated to ensure fresh water quality.
High security
When the municipal pipeline network is shut down or during peak water usage by users, the water supply is ensured by a pressurized water tank, greatly improving the reliability of water use.
Boosting device
Raise the zero pressure water in the water tank to match the current water pressure in the municipal pipeline network (dynamically) to achieve differential compensation. The booster pump is equipped with a frequency converter, which can achieve stepless variable frequency speed regulation to obtain any required pressure value.
Flow ratio regulating valve
Used to adjust the flow rate of equipment from municipal water pipes based on changes in tap water pressure, achieving full utilization of municipal water while not affecting the municipal pipeline network (negative pressure).
Automatic water tank replacement and cleaning device
The equipment has a backwash function, which forcibly circulates the reserve water in the water tank during peak water usage periods, combined with the control of the inlet flow ratio regulating valve, to ensure fresh water quality.
Dual water source mode for water supply
Configure multiple analog input/output modules (boost frequency converter and flow proportional control valve), PLC can calculate these complex situations and adjust the actions of each device