[Asia Pump Network News] slurry pump is produced in recent years, a new type of pump, can be used to transport some of the medium with the liquid, is an indispensable industrial pump. Because of its excellent performance, so its use is very broad, the following to let Xiaobian introduce the working principle of slurry pump. Slurry pump working principle Introduction Slurry pump is a vane pump. Important by the impeller, pump body and pump cover. The impeller is a disk, and the leaves on the circumference are arranged radially. An annular flow passage is formed between the pump body and the impeller. The centrifugal pump, the suction inlet and the discharge outlet are both located at the outer circumference of the impeller. There is a partition between the suction port and the discharge port, thereby separating the suction port and the discharge port. We divide the fluid in the ZHB slurry pump into two parts: the liquid between the blades and the liquid inside the flow channel. When the impeller rotates, under the action of centrifugal force, the peripheral speed of the liquid in the impeller is greater than the peripheral speed of the liquid in the flow passage, so that a "circular flow" is formed. As the liquid from the suction inlet to the discharge outlet moves forward with the impeller, the combined result of these two activities causes the liquid to undergo the same "longitudinal vortex" as that of the impeller. So get the name of the vortex pump. It should be specially pointed out that the liquid particles in the pump body peripheral velocity less than the impeller circumferential speed. In the vertical vortex process, the liquid mass enters the impeller blades several times, and the energy is transmitted to the liquid particles in the flow channel through the impeller blades. Every time the liquid particle passes the leaf, it gains energy once. This is also the case of the same impeller diameter, the diaphragm pump, vortex pump than other vane pump head high reasons. Not all liquid particles pass through the impeller. As the flow rate increases, "annular flow" weakens. When the flow is zero, the "ring flow" the strongest, the highest lift. Since the liquid in the flow channel is impinged by the liquid to transfer energy. At the same time also cause a greater impact loss, so the slurry pump efficiency is relatively low. Depending on the force exerted on the liquid by the rotating impeller, the liquid is delivered to the liquid in an impulse kinetic energy in the direction of the liquid movement to effect a liquid-carrying pump. The impeller is a disk of the same thickness, with a large number of radial blades on either side of its outer edge. In the corresponding parts of the pump shell has a constant cross-section of the annular flow channel, all the flow channel is divided into a suction tongue, row both sides, the resolution of the pump suction and exhaust pipe associated. The liquid in the pump rotates with the impeller to generate a certain centrifugal force, thrown out into the annular flow passage in the pump housing, forced to flow back under the restriction of flow passage shape, and re-enters the other flow passage at the rear of the blade from the root of the flow passage. Therefore, the movement of the liquid between the blade and the annular flow path is an advancing helix to the stationary pump casing, and a reverse helix to the rotating impeller. Vortex pump is named for this vortex movement of liquid. The liquid can continue to enter the leaves several times to obtain energy, until finally discharged from the discharge port. ZHJ material (slag) pulp pump works somewhat like a multistage centrifugal pump, but the vortex pump does not like the centrifugal pump volute or guide vane that energy conversion device. Slurry pumps are important because they produce energy by delivering energy to liquids many times over and over, resulting in higher pressures. In the process of energy transfer, the energy loss is large due to the repeated impact of the liquid, and the efficiency of the pump is low, generally 20 to 50%. Slurry pump is only used for small flow (1 ~ 40m3 / h), high lift (up to 250m), such as fire pump, gasoline pump on the tanker, small boiler feed pump, etc. Pump. Slurry pumps deliver highly volatile and gas-laden liquids but do not utilize to deliver thicker liquids with viscosities greater than 7 Pa • s and unclean liquids containing solid particles. Further reading: Motor IFAT China's top ten brands Guangzhou Exhibition building water pump manufacturers ranking ptc Show article belongs to Internet industry (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor : Gogoing (QQ / wechat: 181817456) starting: http://beng.liuti.cn/ (service hotline: 400-6030-811)