Vortex pumps play a very important role in pumping water and liquids with both physical and chemical properties, but these liquids need to meet certain conditions in order to protect the safety and value of the equipment. Liquid temperature can not exceed 60 degrees. Vortex pump in many fields to play this important role, then vortex pump design shows what content? Is the use of vortex pump design instructions have any effect on product use? Vortex pump design instructions Vortex pump is by rotating the impeller on the force of the liquid in the direction of the liquid to the liquid momentum impulse to transfer kinetic energy in order to achieve the delivery of liquid. Vortex pump is a high-pressure pump, water pump. The impeller of a vortex pump is a disk of constant thickness with a large number of radial blades on both sides of its outer edge. In the corresponding parts of the pump shell has a constant cross-section of the annular flow channel, the entire flow channel is divided into a suction tongue, the two rows, respectively, with the pump suction and exhaust pipe connected. Vortex pump is mainly through multiple continuous work way to transfer energy to the liquid, it can produce high pressure. In the process of energy transfer, the energy loss is larger due to the repeated impact of the liquid, and the efficiency of the pump is relatively low, generally 20 to 50%. Vortex pumps are only suitable for applications that require low flow (1 ~ 40 m 3 / h) and high lift (up to 250 m), such as fire pumps, gasoline pumps on aircraft refueling trucks and small boiler feed pumps. Vortex pumps can deliver highly volatile and gas-laden fluids but should not be used to deliver thicker liquids with viscosities greater than 7 Pa · s and unclean liquids containing solid particles. The characteristics of the vortex pump small flow, high head, with self-priming function, can be used to transport viscosity of less than 5 degrees E solid particles and their water-like liquid. Over-current components as well as stainless steel and other materials can be used to transport acid, alkali corrosive liquids. From the structure can be divided into; single-stage, two-stage, multi-stage; direct connection forms. One of the important parameters of the vortex pump design is as follows: (1) The flow rate of the pump is the pump unit pumping fluid per unit time. Typically, pump flow volume, in Q, units (m3 / s), (m3 / h), (l / s). (2) The head of the lift pump is the amount of energy that the unit weight of the liquid increases through the pump, expressed in H, and its unit is expressed in meters of liquid drawn (m). (3) Speed ​​The speed of the pump refers to the number of revolutions per minute of the pump rotor, expressed in n, in units of (r / min). (4) The power of the power pump, also known as the pump shaft power, is the power delivered to the pump by the prime mover, expressed in P, in units of kW or PS. The flow rate of the fluid flowing through the flow pump from the pump per unit time is called the effective power, expressed in Pe, then pe = rQH / 102 (5) Efficiency h The pump efficiency is the ratio of pump effective power to shaft power , H said. Vortex pump in many industries in our country has a pivotal position, for example in: textile, machinery manufacturing, fixed fire regulator, shipbuilding, heat exchange units have its work figure. With the use of vortex pump more and more users get the affirmation, to accelerate its research and development has become the focus of experts and scholars.
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