Water pump is a kind of mechanical equipment that we often use. In the production life, we need to select the water pump according to your own use and reasonable working conditions. The world's valve network tells you how to use the water pump efficiently and reasonably. First, pay attention to the rational selection of the pump Reduce energy consumption: a reasonable choice Pump Type: 136 existing pumps at the water supply department, some pressurized station due to historical reasons, such as the existence of a large horse-drawn car, resulting in inefficient pumps, energy waste more serious . At present, China's self-developed new energy-saving pumps can achieve the best efficiency of more than 90%, and safe and reliable. If the pump improper selection, the pump configuration is not reasonable, it will waste a lot of energy consumption, so that business costs increase, a direct impact on the economic efficiency of enterprises. Therefore, pay attention to the rational selection of pumps, increase efforts to reform the old pump to achieve the best combination of pump, in the long run, the economic effect is considerable. Under the planned economy, as long as water supply is available, no one at all has ever considered the economic accounts. Nowadays, under the market economy, all kinds of enterprises attach great importance to economic benefits and strive to maximize the realization of their benefits. As a water supply enterprise, it is inevitable to update or rebuild the energy-intensive equipment. Second, the water increases the power consumption to reduce water pump After technical transformation, the new pump structure is simple, safe and reliable, not only to meet user needs, but also easy to maintain and overhaul, greatly reducing the labor intensity of employees, equipment and equipment The security has a reliable guarantee. Third, choose a reasonable pump operating point to improve operating efficiency Pump efficiency is an important factor affecting the efficiency of the pumping station device, which is with the pump design, manufacturing level, the pump operating conditions and the use of the situation. 1, the pump 90%, so the pump operating conditions point only in the efficient curve of the characteristic curve, to efficient operation. Based on the operating characteristics and piping characteristics obtained from the determination of the pump technology at each pressurization station, we adjusted most of the pumps with low operating efficiency and irrational operating conditions to operate at the optimum operating point in the high-efficiency section, Thus improving the pump's operating efficiency. Of the working point, that is, the pump device in an instantaneous actual amount of water, head, shaft power and other parameters directly reflect the working capacity of the pump device, which is the pumping station design and management should first consider the issue. In accordance with the standard requirements, the pump operating efficiency shall not be less than the maximum efficiency of the pump 2, reducing the resistance of the drainage pipe to improve the efficiency of the pipeline system: the pipe system efficiency and pipeline, pipe diameter, pipe, pipe fittings, type and quantity, related. Reduce the drainage pipe resistance, you can make the drainage system work point right, reduce the resistance loss, traffic increases, the system efficiency. Drainage pipeline resistance loss, including drainage along the path of resistance loss, reducing pipe, check valve, gate valve and other local resistance loss. Among them, the proportion of resistance loss along the drain pipe is the largest, which is the existing drainage system used for a long time. Reduce the resistance along the main method: 1), is to clean the drain pipe scale, can improve the system working conditions. 2) For local resistance loss due to pipeline design problems, it should be reformed as much as possible to reduce local resistance loss and improve the piping system efficiency. For example: I was at the water pump plant four pumps, due to pipeline design problems, the pressure pipe valve and check valve directly connected to each other, the disc valve plate fully open, blocking the check valve tongue , So that check valve tongue can not be fully opened, the pipeline increased local resistance. In response to this problem, we add a flexible connecting sleeve between the water pressure plate butterfly valve and the check valve, eliminating the drawbacks of the connection between the butterfly valve and the check valve, reducing the local resistance and increasing the flow rate. 3) In addition, in the new drainage system, in order to reduce the pipeline loss, the economic pipe diameter can be used to shorten the pipe length. When pipeline layout, try to adopt the pipeline fold line arrangement to change the line layout, meanwhile, reduce the unnecessary three links, Gate valves and other pipe fittings to ensure that the pipeline sealing, to reduce the loss of local resistance, to achieve the purpose of improving the efficiency of the pipeline system. Fourth, actively promote the use of new technologies to reduce energy consumption Efficiency of motor frequency control technology to reduce energy consumption. AC motor speed control technology is a new generation of electric drive technology, with a high degree of automation, high efficiency and energy saving, easy adjustment; complete protection, easy maintenance; help to extend the service life of equipment and so on. Both with DC speed control system to facilitate the adjustment of features, but also has the use of AC motor simple maintenance features. In the 1990s, with the breakthrough of high-power AC frequency conversion technology in our country, the technology has been applied more and more widely in civil, mechanical, electric power and other fields and obtained good energy-saving effect.