Jiamusi automatic frequency of water supply equipment Water Equipment Co. Walter Merchants national agency, secondary water supply equipment sailing toward the beautiful fields of automatic constant pressure water supply equipment Introduction automatic constant pressure water supply equipment, is a combination of fire and life, production water characteristics, development and production of a new generation of products with foreign advanced level, the use of microcomputer programmable control technology, according to a variety of situations and water supply pipe network, by microcomputer control and regulation of complex work to achieve intelligent water . Variable flow constant pressure water supply system, is ideal for an energy supply equipment, energy-saving effect, compact, small footprint, stable and reliable operation, long life, flexible design, adjustable water pressure, flow may be large small, can replace the towers, water tanks and all kinds of pressure water supply equipment, can completely remove the secondary water pollution. Automatic constant pressure water supply equipment is also used in the transformation of the existing old pumping station equipment, the same can be achieved after the transformation of energy efficient, automatic constant pressure water supply purposes. Automatic constant pressure water supply equipment features 1, Reasonable design, compact structure, leaving outlet flanges, user-friendly self-installation. 2, the device is fully sealed to run, foreign matter will not enter the system. 3, the device is computer-controlled automatic operation, pump enabling unattended, and need to be cleaned regularly steady flow tank. 4, insufficient equipment pipe network traffic, the system can achieve different pressure water supply, the maximum possible reduction in the probability of system downtime. 5, the use of advanced detection device that can work on multiple parameters pump status, work status, and system level inverter, to achieve real-time tracking. 6, equipment to achieve constant pressure pump run by PID control, pressure effectively guarantee the accuracy of the output value in the range of ± 0.01 MPa, reasonable configuration parameters, making the pump work in the high zone. 7, I, Type II system used Sanken or ABB drives; III-type system used Mitsubishi inverter. 8, no negative pressure water equipment, water pressure easily adjustable. 9, you can select the switching time for the pump, first open the first stop, the first stop before opening. 10, power supply and operating status display. 11, when the main pump fails, the standby pump automatically put into operation, ensure that the system off the water. 12, hand, automatic, commissioning work. 13, pump water, overload, over voltage, under voltage, phase loss protection. 14, no negative pressure water equipment failure audible alarm. 15, intelligent, energy-efficient water supply software. Automatic constant pressure water supply equipment consisting of 1), the main working pump: common single-stage or multi-stage horizontal or vertical water pump. 2), small pumps and small pressure tank: zero flow even longer duration in small flow, less power is set. 3), frequency control cabinet: Frequency Control is a core part of the frequency control water supply equipment, usually by pressing the pump power supply factory for matching supply. 4) Accessories: including connecting pipes and valves, check valves, safety valves (when there is little pressure tank), pressure gauge, pressure switch and base. General assembly equipment. Home delivery from factory assembled. Automatic constant pressure water supply equipment works fully automatic constant pressure water supply system put into use, the water pipe network of water into the water tank, the tank to exclude air from the vacuum to eliminate, to be filled with water, remove the vacuum automatically turns off. When the water pipe network pressure to meet the requirements of the water, the system consists of a bypass valve from the users directly to the water pipe network; when the water pressure in the pipe can not meet the water demand, the system pressure signal from the remote pressure gauge back to the inverter controller pump operation, and automatically adjust the speed according to the size of water pressure water supply, if the running speed of the pump reaches the power frequency, start another pump frequency operation. Pump water, if the water pipe network is greater than the pump flow, maintain normal water supply system; water peak, if the water pipe network is less than the pump flow, water tank water as a supplemental source of water supply is still normal at this time, vacuum to eliminate air from entering the water tank, the tank vacuum destruction, to ensure that the water pipe network does not produce negative pressure, the water peak, the system has returned to normal supply state. When the water pipe network without water, resulting in declining water tank level, level detector will signal back to the inverter controller, the pump automatically shut down to protect the water pump, water tank can store and release energy, to avoid frequent pump starts. Automatic constant pressure water supply frequency control device 1. Principle entire section can be configured to pump frequency cycle soft start work or be free to set the main pump and ancillary small pump 2. Design with RS485 interface, easy with PC or touchscreen connection for configuration control; 3. The new power supply design, anti-interference ability of the AC power grid has better adaptability; 4. parameters in more detail, the system control process is more refined, more energy-efficient system operation; 5 Variables small pump can be independently set the lower limit frequency, better play small pump efficiency and energy savings; 6 optional inverter stop operation, to better prevent water hammer effect; 7. complete sleep function during dormancy can catch up on the degree of pressure from the pressure drop; 8. backlit LCD display, all parameters in the culture, friendly interface. Using the keyboard display panel and the host sub-structure, easy to install, host DIN35 rail mounting; 9. Digital Fuzzy Control: Pressure digital fuzzy control, smart regulation, the system response, high accuracy, good stability, PID parameters debugging. .; 10 soft-start cycle: The self-compensation technology, the system of small electrical mechanical shock, while a small pressure fluctuations when switching; 11. timer switch control: real-time clock (monthly error does not exceed 1 minute), the information can be retentive, set up to sixth day time switch timing control; 12. Regularly changing pump function: multi-pump system allows each pump the same average working time; 15. Flow compensation function: to achieve transformer. variable control, internal compensation and compensation optional external flow meter, the amount of compensation is adjustable; 13 .. dosing pumps, variable pump automatic inspection function;. 14 with manual debugging features. Automatic constant pressure water supply equipment performance 1, due to the system at any time according to user needs water situation adjust the pump speed, thereby changing the amount of water to ensure water quality, pump speed run-saving effect is very significant. 2, the pump soft start completely avoid the strong starting current. 3, automatic control and protection function, automatic fault diagnosis, with input supply overvoltage, overcurrent protection features, short circuit. 4, using the international advanced level of imported frequency converter ABB brand and industrial microcomputer (PLC) OMRON reliable performance. 5, pump control mode: soft-start cycle, which are between the motor and the motor soft start, motor soft switching operation will be started to stop working, switch the pump timing Xu, greatly extending the life of the equipment. 6, according to the special requirements of users, added a variety of additional functions, start and stop timing equipment, level control. Automatic constant pressure water supply equipment Scope ⑴ construction, expansion and renovation of residential buildings, residential quarters, office buildings; ⑵ hotels, restaurants, etc; ⑶ for schools, military units, institutions, dormitories and other water-intensive applications; ⑷ hospitals, shopping malls, convention centers, stadiums, public bathrooms and other public places; ⑸ city water pressure can not meet the fire hydrant water supply system or sprinkler systems and other fire water water requirements; ⑹ for large plants, booster pump station, Zone other large flow centralized water supply; production and living water ⑺ industrial and mining; ⑻ variety of circulating water system; ⑼ especially adapted to the water quality of the water supply particularly demanding applications.