Sales Miss Europe: 15974143465 Online Q: 1922601218 (pro, water supply equipment online consultation free shipping ohhh) National Hotline: 400-086-8955 Address: Yuhua District, Italy all the way to the modern business center Red Block B B4062 site: Long Shali Tuo Industrial Park Changsha Hanson water, so you have no worries with water! Automatic secondary water supply equipment Principle: no negative Liaocheng, Shandong Heze control to achieve constant pressure water supply, compared with the constant pressure regulating valve to achieve with the water supply, energy-saving effect is very significant (can be calculated depending on the circumstances). Its advantages are: 1, automatic secondary water supply equipment starting balance, starting current limit within the rated current, thus avoiding the impact on the grid at the start; 2, the average pump speed is reduced, and thus prolong the pumps and valves and other life; equipment first brand Hanson Water Equipment Co., Ltd. Changsha five provinces of South Africa as the first professional production of brand mainly produces water supply equipment, no negative pressure water supply equipment, constant pressure water supply equipment, no tower water supply equipment, secondary water supply equipment ., no vacuum pump control cabinet, fire pumps, centrifugal pumps and other products automatic secondary water supply equipment Features: 1, energy-saving: energy-optimized control software that enables the pump to achieve maximum energy saving operation; 2, water : set according to the actual use of water pipe network pressure, automatic pump out the water, a decrease of 3, and reliable operation: from Shandong Liaocheng, Heze is no vacuum pump soft starter, so that the pump power frequency to Shandong no negative pressure No impact of the switch to prevent the pipe network impact, avoid pipeline pressure gauge, pipe rupture. 4, networking capabilities: full Chinese control configuration software, real-time monitoring of each site, such as motor voltage, current, frequency, pipe network pressure and flow. And can accumulate electricity at each site, cumulative for each pump out the water, while providing various forms of print statements in order to analyze the statistics. 5, flexible control: segmentation water, regular water supply, manually select the work. 6, self-protection function: If a pump fails, take the initiative to the upper machine alarm information, and start the standby pump to maintain water balance. In case of failure of the automatic control system, users can directly manipulate the manual system to protect the water supply. Secondary water supply equipment automatic PID control principle: according to the feedback principle: in order to maintain a physical constant or substantially the same, it should lead the physical and relatively constant, the formation of closed-loop systems. We want to keep the pressure constant, and therefore must be introduced with a pressure feedback value given value, thereby forming a closed-loop system. However, the characteristics of the controlled system is non-linear, high inertia system, PID control, and now the 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 is done by adding PLC smart meter time is now the algorithm can also program the PLC to the power frequency when the pump is now Shandong Liaocheng, Heze no switching between negative. 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 pipe network management system installed pressure transmitter as a feedback element, due to the water supply system pipe length, diameter large, pressurized pipe networks are slow, so system is a big lag system, easy to direct the use of PID regulator control, and the use of methods involved in the control of the PLC control system to achieve regulation. Sales Miss Europe: 15974143465 Online Q: 1922601218 (pro, water supply equipment online consultation free shipping ohhh) National Hotline: 400-086-8955 Address: Yuhua District, Italy all the way to the modern business center Red Block B B4062 site: Long Shali Tuo Industrial Park Changsha Hanson water, so you have no worries with water!