No negative pressure water system manufacturers, no negative pressure water supply system, built in the water

With the development of secondary pressurized water technology, no negative pressure water supply equipment from the fundamental solution to these problems. According to the "water supply equipment Promotion Center," the data show that no negative pressure water equipment without the construction of towers, small investment, small footprint, the use of water, gas automatic adjustment, automatic operation, automatic energy saving and water grid, water supply even after a power outage, After commissioning a few years without care. Build towers to save and invest more than 70%, the construction of the high water tank to save and invest more than 60%, significant savings in construction investment. Mainly used in production and living, office water residential and rural. Water households in 20-2000 households. Daily water supply in 20-50000m3, water height of 150 meters, the 50-story building. No negative pressure water equipment is my factory innovation developed non-vacuum pipe pressurized equipment. The device is fully enclosed painted directly interface with the water pipe network, through the initiative of qi flow conditioner maintenance of equipment and water pipe network does not constitute a negative pressure to ensure the water pipe network regulator (no vacuum), safe and clean to Users of water, avoiding the construction of concrete reservoirs or water tanks set up trouble. No negative pressure water equipment full use of existing water pipe network is completed in the original pressure superimposed on the pressure to complete the number of poor, make up the number, the secondary pressure equipment selection is reduced, saving investment, together application process can be greatly saving, is currently the most advanced method for the latest model of secondary water supply. Frequency supply pump PID control principle | no negative pressure water equipment PID control principle based on feedback principle: in order to maintain a physical constant or substantially constant, it should lead to this relatively constant physical and form a closed loop system. We want to maintain a constant pressure, so it is necessary to introduce pressure feedback value and given value, thereby forming a closed-loop system. However, the system is controlled by a non-linear characteristics, inertial systems, now and PID control method combining the pressure fluctuations in the use of burnt control mode to speed up the response time; smaller when using PID in the pressure range to remain static precision . This is done by adding PLC intelligent instrument time is now the algorithm can be switched simultaneously to PLC programming time is now pump frequency and frequency between. Practice has proved that this method is feasible, and cost is not high. Frequency for the pump in order to maintain constant pressure water supply network, according to the feedback theorem on the management network system installed pressure transducer as feedback element, since the water supply system pipe length, diameter large, pressurized pipe network are more slow, so the system is a big delay system, easy to direct the use of PID regulator control, and participation by way of PLC controlled to achieve the control system regulation. Frequency no negative pressure water supply pump working conditions | frequency without negative pressure water equipment using the operating condition and transporting medium: hot and cold clean, non-flammable and does not contain a liquid solid particles or fibers. Liquid temperature: Normal temperature type -15 o C to +70 o C to +70 o C hot water type +120 o C. · Environment: no water droplets, steam, dust and metal particles floating of place. No sunlight, high temperatures and severe dust places. Non-corrosive, flammable gas and liquid properties. · No vibration, easy maintenance and inspection of the premises. Ambient temperature: up to +45 o C and good ventilation.