Walter secondary water supply equipment Equipment Co. Merchants national agency, secondary water supply equipment sailing toward the beautiful areas honesty, service first, quality first, professional excellence. Frequency of secondary water supply equipment application mode: usually in the same way water supply system, set up more than one common pump, several large water pump full of water supply to open one or two hours. When using frequency control for constant pressure water supply, use two ways, one is all the water pump with an inverter; Second, each pump is equipped with a converter. The latter method based on feedback from the pressure signal, automatically adjust the output frequency through the PID operation, change the motor speed, and ultimately achieve the purpose of the pipe network constant pressure on a closed loop, is relatively simple, but the high cost. The former method is low cost, poor performance than the latter, but more complex control procedures, is the future direction of development. The principle mentioned below are a multi-motor drive system drag. Secondary water supply equipment Overview: secondary water supply equipment refers to the network of water supply system in place in the change, the outlet pressure remains constant water supply. The outlet pressure of the water network system is determined according to user needs. The traditional way is to use constant pressure water towers, high-water tank, pressure tank and other facilities to achieve. In recent years, with the frequency control technology matures, its remarkable energy efficiency and reliable and stable control, has been widely used in water supply systems. Secondary water supply equipment to implement variable speed pump motor, based on water consumption and water pressure change is detected by the computer, computing, automatically change the pump speed to maintain a constant pressure in order to meet the water requirements, is currently the most advanced technology, reasonable energy supply system. Compared with the traditional towers, water tanks, pressure tanks and other water supply, whether it is investment, stability of operation of the economy, or the system, reliability, automation and other areas have advantages. 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Secondary water supply equipment Computing: secondary water supply equipment operation, part of the buffer tank volume of compressed air (same pressure and municipal water pressure), thus storing some pressure potential, by this stored energy can significantly slow the impact of various municipal water impact, while the municipal water supply has clipping compensation dynamic. When the municipal service pressure dropped from P2 P1, the relationship between the total volume of the buffer tank to provide the maximum amount of water and buffer tank to compensate for: (1) V # = (1-P1 / P2) V total = KV total V # - Municipal Water Summit P1 from P2 pressure drops during the compensation given water tank of water (m3) P1- municipal water peak of the lowest pressure (absolute pressure) P2- pressure (absolute pressure) municipal water supply before the peak of the V total - the total volume of water tank (m3) (2) When the municipal pipe network voltage, the device starts automatically on the basis of the original frequency control without pressure booster (constant) of water, because it is according to "how much less, make up" principle booster, Therefore, the full flow range that meets the needs of the user constant pressure water supply, while achieving energy efficient operation. Closed during the operation of the buffer tank for quite some piping fresh health unsolicited Miao constantly flowing water tank, not subject to external contamination. (3) When the municipal pipe network pressure, the device is in shutdown state, municipal water through the buffer tank, the bypass pipe water supply pipe network directly to the user.