Hechi supply equipment life like a ship in the world like the sea, like a man's own sailing helmsman, select tilt with the times changing ideas sometimes seem to flow, large or small wind. Xing Hechi rise of water supply equipment equipment manufacturers high cost brand, the company's supply technologically advanced equipment, mature production technology is simple, inexpensive, welcome to buy, a unified national hotline 400-0030-929 Sales Engineer: Chen Workers Address: Furong Sec URL: http: //www.csxingjue.com no negative pressure water supply, constant pressure water supply equipment Hechi basic characteristics of an energy efficient device according to the user's actual water consumption and the use of automatic pressure testing, adjust the motor speed (power), so the device is always in efficient working condition. 2, the water pipe network pressure regulating devices constituted by a microcomputer automatic closed-loop control, can make the changes in 0.5 seconds, the pressure returned to normal, the pressure regulation accuracy of ± 5% of the set value. 3, small footprint, low investment, short duration installation. Equipment and other old-fashioned water-saving equipment covering 3 to 16 times compared to the construction of towers to save and invest more than 15% to 60%. Devices are small, easy assembly, installation, transportation and installation of a short duration. 4, full protection, safe and reliable, easy to operate the device host imported frequency converter itself has an undervoltage, overvoltage, overcurrent, overload, short circuit, overheating, stall prevention, protection, trouble-free use of up to 100 000 more than an hour. Equipment distribution control section, the use of intelligent control principle, convenient and practical operation, the device status at a glance, easy to non-professionals quickly master. 5, water-function, high safety factor when local equipment failure, to enable the continued supply emergency functions. The device automatically and network operation with the municipal water supply network, and has dual voltage function, that is able to meet the normal production of water pressure and flow of life, can be automatically converted in the event of fire is high pressure and large flow of water can be a machine. PID control principle of constant pressure water supply equipment based on the feedback of Hechi principle: in order to maintain a physical constant or substantially the same, it should lead the physical and relatively constant, the formation of a closed-loop equipment. We want to keep the pressure constant, and therefore must introduce the pressure feedback value compared to the reference value, thus forming a closed-loop device. However, the characteristics of the controlled device is nonlinear, high inertia equipment, now and PID control method of combining, in the pressure fluctuations when using fuzzy control, in order to speed up response; smaller when using the PID to maintain the static pressure range accuracy. This smart meter can be added via the PLC when the algorithm is now switching to PLC programming while the time is now and the frequency of the pump power frequency between. Practice has proved that this method is feasible, but the cost is not high. To maintain a constant pressure water supply network, according to the feedback theorem on the management network equipment installed pressure transmitter as the feedback element, due to the water supply equipment, pipe length, diameter large, pressurized pipe networks are slow, so equipment is a big lag device, easy to direct the use of PID regulator control, and participation by way of PLC controlled to achieve the control device regulation. Hechi supply equipment installation requirements for equipment installation should choose a well-ventilated, low dust, do not wet the site, environmental humidity -10 ℃ -40 ℃. Should be fortified in the outdoor rain, lightning and other facilities. For the convenience of equipment around the installation, maintenance, equipment, space should be left 70cm, manholes should be retained 1.5m space, surrounded by floor drains should be located. After selecting the site. Properly handle the foundation, with concrete pouring or masonry tank bearing seat base to be completely cured, and then lifting the tank and put stability. Then installation accessories. Power. Xing rise of water supply equipment manufacturers is your best choice, I believe that the rise of interest to believe in yourself and sincerely look forward to your call!