节能说明： 1.现状为靠人工调节出水阀阀芯开启程度来控制输出水压的大小

Energy saving instructions: 1. The current situation is to control the output water pressure by manually adjusting the opening degree of the outlet valve spool. A large part of the energy consumption is wasted on the internal resistance of the spool. After the transformation, the spool will be 100% fully opened, which will greatly reduce the internal resistance wasted on the spool and save energy! 2. Now the water pump motor is started by Y/D, and it has been running under 50 Hz power frequency, and the rated speed is 1480 r/min. After the transformation, the inverter is used to control the variable frequency constant pressure water supply system, which is the PID output from the pressure sensor. Set value to control the operation of the entire system, the motor running speed will be large, much lower than the rated speed, thereby saving energy. <br>From the data, we can see the obvious energy-saving effect from theoretical calculations, especially from the energy-saving of a single pump, the smaller the flow, the greater the energy-saving. In the actual production of the valve control 45KW motor, the current is about 80A, the actual power Approximately P=√3*380*80*0.82=43KW. That is, the power consumption of the pump is 43KW/H (degree). The opening of the pump valve is 36.5% close to 40%. The frequency conversion constant pressure water supply system is controlled by the PID set value output by the pressure sensor to control the operation of the entire system. The operation of the pump is automatically adjusted according to the change of the system pressure. Formula, considering the mechanical loss, the power saving rate is between 20% and 30% depending on the production situation. Suppose work 24 hours a day, 350 days annual work annual electricity savings is: <br>calculated 20%: 43 degrees * 24H * 350D * 20% * 0.57 yuan / kWh = 41176 yuan <br>calculated at 30%: 43 degrees * 24H * 350D *30%*0.57 yuan/degree=61765 yuan. <br>The savings in electricity bills in one year is as high as between 41176 yuan and 61765 yuan.

Energy saving description: 1. The status quo is to control the size of the output water pressure by manually adjusting the opening degree of the valve core. A large part of the energy consumption wasted on the valve core on top of the internal resistance, after the transformation, the valve core will be 100% fully open, will greatly reduce waste on the valve core internal resistance, thereby saving energy consumption! 2. Now the pump motor is Y/D start-up, has been 50 Hz operating in the operating frequency state, rated speed of 1480 r/min, after the transformation of the use of inverter control variable frequency constant voltage water supply system, is through the pressure sensor output OF given value, to control the operation of the entire system, the motor running speed will be large, large below the rated speed, thereby saving energy consumption.<br>From the data can be seen, from the theoretical calculation can see the obvious energy saving effect, especially from the energy saving of a single pump, the smaller the flow, the greater the amount of energy saving. The actual production of a valve-controlled 45KW motor has a current of about 80A, and the actual power is approximately P-√380-80-0.82-43KW. That is, the power consumption of the pump is 43KW/H (degrees). Pump valve opening rate of 36.5% close to 40% using variable frequency control variable frequency constant pressure water supply system is a pressure sensor output OFD given value to control the operation of the entire system, pump operation with the change of system pressure and automatic adjustment, according to the calculation formula, consider mechanical losses, depending on production conditions fixed power saving rate between 20% to 30%. Suppose you work 24 hours a day, 350 days a year to save on electricity costs:<br>Calculated at 20%: 43 degrees x 24H x 350D x 20% x 0.57 yuan / degree x 41176 yuan <br>Calculated at 30%: 43 degrees x 24H x 350D x 30% x 0.57 yuan / degree x 61765 yuan.<br>One year to save electricity costs as high as 41,176 yuan - 61765 yuan.

Energy saving instructions: 1. The current situation is to control the output water pressure by manually adjusting the opening degree of the outlet valve spool. Most of the energy consumption is wasted on the internal resistance of the valve core. After the transformation, the valve core will be fully opened, which will greatly reduce the internal resistance wasted on the valve core, so as to save energy! 2. Now the water pump motor is started by Y / D and has been running at 50 Hz power frequency. The rated speed is 1480 R / min. after the transformation, the inverter is used to control the variable frequency constant pressure water supply system. The PID value output by the pressure sensor is used to control the operation of the whole system. The running speed of the motor will be large, much lower than the rated speed, so as to save energy.<br>From the data, we can see the obvious energy-saving effect from the theoretical calculation, especially from the energy-saving of a single pump, the smaller the flow, the greater the energy-saving amount. In the actual production, the current of 45KW motor controlled by valve is about 80A, and the actual power is about P = √ 3 * 380 * 80 * 0.82 = 43kw. That is, the power consumption of water pump is 43kw / h (degree). The valve opening of water pump is 36.5% and close to 40%. The frequency conversion constant pressure water supply system controls the operation of the whole system through the PID value output by the pressure sensor. The operation of the water pump is automatically adjusted with the change of the system pressure. According to the calculation formula, considering the mechanical loss, the power saving rate is between 20% and 30% depending on the production situation. Assuming 24 hours a day and 350 days in a year, the annual electricity saving is as follows:<br>Calculated by 20%: 43 Degree * 24h * 350d * 20% * 0.57 yuan / degree = 41176 yuan<br>Calculated by 30%: 43 Degree * 24h * 350d * 30% * 0.57 yuan / degree = 61765 yuan.<br>A year's electricity saving is as high as 41176-61765 yuan.<br>