CGGY Gaoyou restaurant supply unit 
 In the 21st century, a village a certain day: we the people, Today, I'm glad! Water supply equipment installation is complete you, quack! New hit foreign wells 7, 7 sets of pump installation, installation of automatic water supply device 1 sets no tower, two new towers, repair and reinforcement towers 2, management room 6, storage tank 9, various types of pipe laying 123km, completed excavation, backfilling earthwork 11.90 Articles, the valve shaft 29 so, 3.04 million people in the county we have to solve drinking water problems of insecurity. Shanghai Spring Jiang Huadong first supply unit brand, restaurant supply units to buy CGGY Gaoyou preferred Shanghai Spring ginger! We will provide quality products, satisfactory service every customer seriously. Where the unit advantage? 300 to 1000 such as multi-storey residential district or 600 or so high-rise residential buildings (12 floors or less) unit of water of life, life in general the main pump power of about 15kW, the unit is generally zero-flow frequency f0 25 35Hz, so little traffic at night, with the main water pump frequency conversion efficiency is low. This involves the supply unit in a small flow or zero flow of energy-saving issues, generally take four kinds of programs: ① frequency inverter main pump + auxiliary pump; ② frequency inverter main pump + pump + auxiliary pressure tank; ③ the main frequency pump + pressure tank; ④ frequency + frequency auxiliary pump main pump pressure tank [2] +. From the energy-saving, investment point of view the first four schemes more appropriate, the program that is based on the original main pump frequency, and then with 1 to 2 dedicated small pump flow at night or when the frequency of water supply usually small, generally choose a small pump flow rate of 3 ~ 6m3 / h, residential households, the more appropriate choice of flow can be bigger. CGGY Gaoyou small restaurant pump power supply unit is generally 1.5 ~ 3kW, a small pump head or lift by the main pump head can be slightly lower than the main pump. Frequency counter is controlled by PLC program uses a modular design, the unit control process shown in Figure 1. Usually the main pump unit operating in the frequency of water supply loop soft-start mode, the unit water consumption decreases, the main pump frequency decreases, when the frequency is lower than the low flow frequency, PID regulator issued a low-frequency switching signal after a delay, CGGY Gaoyou restaurant supply the unit automatically enters a small water pump variable frequency mode. When the water increases, the pump unit can not meet the required flow rate, PID regulator issued a full-frequency signal, time delay, the unit automatically returns to the main water pump loop soft-start frequency mode. In order to achieve better energy-saving effect, the unit also features dual constant pressure water supply. CGGY Gaoyou restaurant supply unit - Shanghai Spring Ginger Produced.