SY-FP fan and water pump saving cabinet safety, easy operation, motor control. energy-saving, high reliability
Product Description SY-FP fan and pump energy-saving cabinet can save the energy. The fan and water pumpsystems can save around 25%to 70% energy by using the SY-FPseries. And will greatlyreducethe amount of labor, andto extendthe work lifeofthefan and water pumpandothermechanical, completely replacethefan and water pumpvalvesystem.somaintenance is greatly reduced. The system uses the closed-loop controlsystemsothat improve the level of the automationofthefan and water pumpsystems. The steady and rapidresponse can make thefan and water pumpsystems work better.
Power-saving principle
1, The characteristics of the fluid load Wind and water is a kind of fluid. It belongs to the square torque load, according to the hydrodynamic laws, have the following relationship between the shaft power, pressure, speed and flow: Flow and speed time proportional to the square; proportional to the square of the pressure and speed; proportional to the cube of the shaft power and speed. Can be expressed as following: Q = K1 * N P = K2 * N2 PW = K3 * N3 N-speed Q-flow pump outlet pressure P-PW-shaft power K1, K2, and K3-constant as shown in the following picture:
As shown in the following table, given a set of data and examples
2. Energy conservation principle Our SY-FP series can be efficient and energy-saving for the above system. In addition to increasing the stability of the system to a new level, also can save a lot of energy. Our SY-FP series of energy-saving systems can save energy in two ways:
1) the optimum operating voltage energy saving For three-phase asynchronous motor, there is a best energy saving voltage value at different load point as shown in the following diagram:
As shown in the drawing, at different load points, there is such a point of inflection (A, B, and C), when the voltage is greater than the inflection point voltage, the current down with the voltage drop; when the voltage is smaller than the knee voltage, the current increases with the voltage drop. Obviously, A, B, C three inflection points are the most energy-efficient point. The SY-FP series has automatic tracking function for voltage inflection point so that can keep the voltage at the inflection point voltage to achieve the energy saving effect.
2) The best technology of track The VVVF widely application pioneers a revolutionary means for the fan, water pump energy-saving. We can illustrate the energy-saving effect of frequency control by the following diagram. Suppose a water pump, the rated power is PW, rated outlet pressure is P, and the rated flow is Q.
Then produce the rated flow, shaft power: PW = K * P * Q Where K is a constant, through the valve orifice Q / 2, in this case, the shaft power is: PW1 = P * Q / 2 = 0.5PW Adopted frequency control, the valve is fully open, the pump outlet pressure is: (1/2) P = 0.25P The shaft output power: PW2 = K * (1/4P) * Q / 2 = 0.125PW Saving rate (0.5-0.125) / 0.5 * 100% = 75%
Of course, the premise of this case is to meet the process requirements for lift. Because the lift also decreased by 75%. Analyzed from the perspective of physics, this case is consistent with the law of conservation of energy. For a certain quality of the material, it has energy including kinetic and potential energy, E = mgh +1 / 2mv.
From the above formula, we can see the potential energy can not be changed, because we have to send it to the height that the process required. By pumps’ speed change, in fact, changed its kinetic energy 1/2mv
The above interpretation of the Energy-saving principle is also suitable for fan.
3) high-performance automation system SY-FP system is designed for the system includes PLC control, PID control of the analog signal, if necessary, to consider the application of configuration. So the control requirements such as multi-pump operation, fault switching, constant voltage constant water level can properly achieved.
Technical parameters Input rated voltage: Three-phases 380VAC, 50Hz Allowable voltage range: 380V ± 15% Allowable voltage fluctuation: 380V ± 15% Frequency: 50Hz ± 5% Output voltage: 0 ~ 380V Overload capacity: 5.5KW ~ 132KW: 120% rated current for 1 minute 160KW and above: 110% of rated current for 1 minute 150% of rated current 1 second Occasions: indoor, free from direct sunlight, no corrosive gas, flammable gas, oil mist, water vapor
System Features1, high power-saving rate: good voltage settings and automation systems improve the energy-saving effect.2, simple operation: design according to the habits of the operator, in accordance with the original mode of operation, can make the users quickly grasp the method of operation.3 Immunity: reasonable layout and scientific anti-jamming measures, eliminating mutual interference with the outside world.4 safe: strictly follow the electrical design specifications, good protection.5, high reliability: good experience, hardware and software measures to ensure the high reliability of the system.6. Strong compatibility: can electrical equipment for all occasions, good convergence with the original system.7, high automation: fully consider the process of the whole system, reasonable design fault switching and system run sequentially
fan and water pump power-saving cabinet
