Zhuhai Hospital Walter negative pressure water equipment Water Equipment Co., the national investment agency, secondary water supply equipment sailing toward the beautiful areas of the hospital without negative pressure water equipment features a significant economic benefits: the use of hospital negative pressure water equipment, do not construction of towers, no roof water tanks, reducing the construction cycle engineering, but also solve the high cost of the shortcomings of the project cost, but also to overcome the pressure fluctuations, the pump starts and frequent deficiencies. 2, rigorous design: the use of constant pressure pump control system, no matter how the water changes, both to make the pipe outlet pressure remains constant. 3, reliable operation: The inverter and high-quality domestic water pump, with perfect protection and automatic, manual conversion, the operation is very reliable. Hospital negative pressure water equipment and good performance, flexible control, anti-interference ability 4. Efficiency: The pump speed can be adjusted according to changes in water users, so that the pump is always working in the high zone, energy-saving effect is obvious, than constant speed pumps can save 35%. 5, easy to operate: the use of automatic control, PID regulation, keyboard, man-machine interface (text, numbers) display. The operator simply convert cabinet switch, users can achieve the required conditions, to achieve automatic unattended. 6, the protection function: Hospital negative pressure water equipment with perfect overload, short circuit, overvoltage, undervoltage, phase, overcurrent, short circuit, water shortage and other automatic protection. In exceptional circumstances can signal alarm, self-test and fault diagnosis. 7, small footprint, easy installation: the entire hospital negative pressure water equipment is only one set of water control cabinet and pump unit, installation is very simple and convenient. 8, to extend the life of pumps and motors: for more than one pump can achieve reliable soft-start, make the grid and pipeline avoid impact, and take turns running, greatly extending the life of pumps and motors. Hospital negative pressure water equipment is inseparable from the traditional way of water supply reservoirs, the water in the pool is generally supplied by the water pipe network, so that the pressure of the water into the pool becomes zero, resulting in a large amount of energy wasted. No negative frequency control water supply equipment, our company is professional and technical personnel in the frequency of water supply equipment on the development of a direct connection with the water pipe network, and on the water pipe network does not produce any negative of negative frequency modulation speed water supply equipment, on the basis of the original pressure, pressure difference how much make up. To take advantage of the pressure water pipe network of water supply, directly or indirectly, to avoid secondary contamination secondary waste of energy and water, and no negative pressure frequency conversion water supply equipment to cancel the reservoir and rooftop water tanks, significant savings in infrastructure investment and shorten the construction period. Frequency no negative pressure water supply equipment is directly connected to the municipal water supply pipe line, does not produce negative pressure on municipal pipe network, and can regulate and stabilize the flow of fully automated water supply equipment. No negative pressure frequency conversion water supply equipment works: Tap into the conditioning tank, the tank to eliminate the discharge of air from the vacuum inside the device, to be filled with water, remove the vacuum automatically turns off. When the water to meet the water pressure and water requirements, no negative frequency control water supply equipment through the pump bypass conduit pipes and pipe network directly from the users of water; when the pressure of the water pipe network can not meet the water requirements, the system pressure sensor or Remote pressure gauge, given from the pump signal to start the pump running. When no negative frequency control water supply equipment pumps water, if the water pipe network is greater than the pump flow, no negative frequency control water supply equipment to maintain normal water supply, the water peak, if the water pipe network is less than the pump flow, adjust tank water as a supplemental source of water still water, this time, no negative frequency conversion air from the vacuum to eliminate water supply equipment into the conditioning tank, eliminating the negative pressure water peak after a water pipe network, no negative frequency control water supply equipment to restore normal state. If the water supply shortage or disruption of water supply pipe network which led to adjust the tank water level drops to dry, level controllers stop signal is given to the protection of non-vacuum pump unit frequency conversion water supply equipment. No negative frequency control water supply equipment pump automatically resume when runoff. As a result of advanced frequency control technology, soft start, overload, short circuit, overvoltage, undervoltage, phase, thermal and stall protection, in exceptional circumstances signal alarm, self-test, fault diagnosis and other functions. Also automatically adjust water flow according to the water level. Hospital negative pressure water equipment Main features: 1, automatic completion of more than one water pump soft start, variable frequency to the full operation of the process and stop frequency operation. 2, according to changes in water, into a multi-pump start and stop. 3, LED pressure setpoint and the actual pressure value display. 4, LED frequency indication, frequency exception indicates, the motor failure conditions. 5, protection features: undervoltage protection, overvoltage protection, overload protection, short circuit protection, stall prevention, to prevent burning and other functions.