Title: The way of energy saving in waterworks pumping stations: the ingenious use of pump selection and frequency conversion speed regulation.
Introduction: The waterworks are an important facility for urban water supply, and the pumping station, as a key part of it, undertakes the important task of transporting water resources from the water source to thousands of households. However, electricity consumption has always been the largest energy consumption during the operation of the pumping station. This article will analyze how the pumping station of the waterworks can achieve the goal of energy saving and consumption reduction through the reasonable selection of water pumps and the use of frequency conversion speed regulation technology based on the operation experience.
1. Reasonable selection of water pumps.
Reasonable selection of water pump is the first step in saving energy in the pumping station of the waterworks. Proper pump selection can not only ensure the amount of water supplied and water pressure, but also save electricity. On the contrary, improper pump selection will reduce the utilization rate of pump equipment and waste electric energy. So, how can we make a reasonable choice of water pump?
1.Understand the requirements of water supply: First of all, we must understand the requirements of water supply, mainly the head, the range of flow and its changes. When selecting a pump, it should not only be based on the maximum water supply to achieve the highest efficiency, but should consider the regular water supply, and the pump can operate within the maximum efficiency range.
2.Choose a pump with a large range of high-efficiency zones: In order to adapt to the changes in urban water consumption at any time, a pump with a wide range of high-efficiency zones should be selected. In this way, during the operation of the pump, the working point of the pump can be adjusted according to the actual water demand, so that it always keeps running in the high-efficiency zone.
3.Choose a matching motor with high efficiency and low loss: The efficiency of the motor is closely related to the efficiency of the water pump. The selection of high-efficiency, low-loss motors can further improve the operating efficiency of the pump and reduce energy consumption.
Second, the application of frequency conversion speed regulation technology.
In waterworks, the use of frequency conversion speed regulation technology for energy saving and consumption reduction is the most widely used. Frequency conversion speed regulation technology has the following advantages:
1.The energy-saving effect is remarkable: when the frequency conversion speed regulation is adopted, the head of the water pump can change with the change of motor speed. Under the condition of maintaining the pressure of the pipe network, the flow rate can be changed, so as to save power consumption.
2.Stable control of water pressure: Frequency conversion speed regulation has a good advantage in controlling water pressure. The pressure of the pipe network can be captured at any time according to the given pressure, and the pump can be adjusted in real time, so that the pressure change of the pipe network is basically zero.
3.Powerful and reliable operation: strong frequency conversion adjustment function, reliable operation and simple maintenance. Although the one-time investment is high, in the long run, the energy saving effect is significant and the economic benefits are obvious.
4.Configuration of speed control pumps: If there are multiple pumps in the pumping station, the speed of the pump with the largest capacity that runs frequently should be regulated. In this way, during the operation of the pump, the working point of the pump can be adjusted according to the actual water demand, so that it always keeps running in the high-efficiency zone.
Conclusion: The energy saving and consumption reduction of the pumping station of the waterworks should not only start from the selection of water pumps, but also make full use of the frequency conversion speed regulation technology. Reasonable selection of water pump can ensure the amount of water supplied and water pressure, and at the same time save electricity. The use of frequency conversion speed regulation technology can realize the adjustment of flow rate under the condition of ensuring the pressure of the pipe network, so as to achieve the purpose of energy saving and consumption reduction. Through the implementation of the above measures, the energy-saving effect of the waterworks pumping station will be significantly improved, and contribute to the development of China's urban water supply.