Centrifugal pump with its simple structure, easy maintenance, high efficiency and become the most widely used agricultural pump, but also because sometimes mention the water is annoying. We will analyze the reasons for not referring to the fault of water. Air inlet pipe and pump body (1) Some users do not fill enough water before the pump is started; sometimes the seeped water overflows from the bleed hole, but the air is completely discharged without rotating the pump shaft, leaving a little air to remain in the intake pipe or pump body . (2) The horizontal section of the inlet pipe in contact with the pump applies a descending gradient of 0.5% or more to the direction of the flow of water, and the one end connected to the inlet of the pump is the highest, not completely horizontal. If you tilt up, there will be trapped air inlet pipe, reducing the vacuum hose and pump, affecting water absorption. (3) The packing of the pump is worn or the packing pressure is too loose due to the long-term use, resulting in a large amount of water being ejected from the gap between the packing and the shaft sleeve of the pump. As a result, external air flows into the pump from these gaps, Affected the mention of water. (4) Inlet pipe Due to long-term potential underwater, pipe wall corrosion holes, water pump work continues to decline, when these holes exposed water, the air from the hole into the water pipe. (5) cracks in the inlet pipe cracks, inlet pipe and pump connections appear tiny gaps, are likely to make the air into the inlet pipe. Pump speed is too low (1) human factors. A considerable part of the user due to damage to the original motor, coupled with another motor driven, resulting in less traffic, low lift or even pumping the consequences of the water. (2) belt wear. There are many large pump away from the belt, because of long-term use, the belt wear and loose, there slippage, thereby reducing the pump speed. (3) improper installation. Two pulley center distance is too small or two axes are not parallel, tight belt mounted to the top, resulting in the wrapping angle is too small, the two pulley diameter calculation error and coupling shaft pump two eccentric eccentricity will result in Pump speed changes. (4) the pump itself mechanical failure. Loosening of the impeller and the shaft of the pump shaft or the deformation and bending of the shaft of the pump cause the impeller to move more, directly friction with the pump body, or bearing damage, which may reduce the speed of the pump. (5) Power engine maintenance does not record. Motor due to the winding burned, and lost magnetism, the maintenance of the winding turns, diameter, wiring changes, or maintenance failure is not completely ruled out the factors that will change the pump speed. Suction too much Some of the water is deep and some of the water's outer surface is flat, ignoring the allowable suction of the pump, resulting in little or no water absorption. To know that there is a limit to the degree of vacuum that can be established at the suction port of a pump, the suction at absolute vacuum is about 10 meters high and the pump can not establish an absolute vacuum. And the vacuum is too large, easy to pump the water gasification, the work of the pump negative. Therefore, the centrifugal pump has its maximum allowable suction, usually between 3 to 8.5 meters, not only when installing the pump is simple and convenient. Water flow in the water pipe resistance loss is too large Some users through the measurement, although the vertical distance from the reservoir or water tower to the water surface is slightly less than the head of the pump, but still small amount of water or mention the water. (1) The bottom valve can not open. It is usually due to the pump being left on for too long, the bottom valve gasket is stuck, and the bottom valve without gasket may rust out. (2) The bottom valve filter screen is clogged; or the bottom valve causes potential clogging of the filter screen in the sludge layer. (3) impeller wear serious. Impeller blades worn by long-term use, affecting the pump performance. (4) Gate valve or check valve failure or blockage will result in reduced flow or even pumping on the water. (5) The discharge of the outlet pipe will also affect the amount of water delivered. This article Keywords: centrifugal pump An electric road bike is a type of bicycle that combines the features of a traditional road bike with an electric motor and battery. It is designed for riders who want to enjoy the benefits of cycling without the physical exertion required by traditional road bikes.Electric road bikes typically have a lightweight frame and aerodynamic design,which makes them ideal for commuting, touring, and long-distance rides. They are equipped with a powerful electric motor that provides assistance when the rider needs it, such as when climbing hills or riding against strong headwinds.The electric motor is powered by a rechargeable battery that can provide anywhere from 20 to 100 miles of range,depending on the model and the terrain. The battery can be recharged using a standard electrical outlet, and it typically takes between 2 and 6 hours to fully charge.Electric road bikes come in a variety of styles,including drop-bar and flat-bar models.They are also available in different sizes and colors, so riders can choose the model that best suits their needs and preferences. Electric Road Bike,E Road Bike,Ebike Off Road,Ebike Road Bike Ejoysport Technology (SuZhou)Co.,LTD , https://www.yqejoysport.com
The reason is often too long pipes, pipe corners, water flow resistance in the pipeline is too large loss. The reason is often too long pipes, pipe corners, water flow resistance in the pipeline is too large loss. Under normal circumstances, 90-degree bend than the 120-degree elbow resistance, each 90-degree elbow head loss of about 0.5 to 1 meter, every 20 meters of pipe resistance can make head loss of about 1 meter. In addition, some users are also free to pump into and out of the pipe diameter, which also has a certain impact on the lift.
The impact of other factors
Overall, electric road bikes are a great option for riders who want to enjoy the benefits of cycling without the physical strain.They are efficient, eco-friendly, and fun to ride, making them a great investment for anyone who loves to explore the outdoors on two wheels.Electric Road Bike suit the people who like racing and want a faster and more efficient way of commuting or exercising. Electric road bikes provide an added boost of power to help riders achieve higher speeds and tackle hills with ease. They also offer a more eco-friendly alternative to traditional gas-powered vehicles.Electric road bikes are equipped with a motor and battery that provide pedal-assist, meaning the rider still has to pedal but the motor provides an extra boost of power. This allows riders to travel faster and further than they would be able to on a traditional road bike. The motor can be adjusted to provide varying levels of assistance, so riders can choose how much help they want.Electric road bikes are also lighter than traditional e-bikes, making them more agile and easier to handle. They typically have a sleek design and are built for speed, with narrow tires and a lightweight frame. This makes them perfect for racing or for riders who want to push themselves to go faster and further.Overall, electric road bikes are a great option for anyone who loves cycling and wants to take their riding to the next level. They offer a faster, more efficient way of commuting and exercising, while still providing the health benefits of traditional cycling.