The vortex pump can be unique to a wide range of applications. Although the vortex pump vane pump, but the process and characteristics of its work with other large differences in pump. At present, calculation of the vortex pump design also failed to catch up with foreign standards, the improvement of its design to enhance a certain practical significance. Vortex pump has the following characteristics and applications. (1) the use of the vortex pump is a small flow and high lift occasion, to fill the lack of a centrifugal type and become a type of centrifugal pump flow in a small extension of the scope. Whirlpool pump than to generally less than 40, more than a few to more than 40 of the vortex pump and economically cost-effective, because it falls within this range the efficiency is far below the efficiency of centrifugal pump. (2) whirlpool pump structure is simple, compact, suitable for processing, manufacturing and low cost. (3) the vortex has a self-priming pump capacity directly or through the use of simple self-suction device can be realized. (4) of the head vortex pump dropped - and the power flow - the flow curve. Thus the system is not sensitive to pressure fluctuations. (5) of the vortex liquid-gas pump can be mixed transportation. (6) the lower the efficiency of the vortex pump, generally 20% ~ 40%, the maximum does not exceed 50%. (7) can only be used to pumping viscosity E is less than the non-viscous liquid, viscous liquid with the increase in pump head and efficiency will be dramatically reduced. (8) swirl separator and radial clearance of the impeller and the impeller and the pump body on both sides of the axial gap between the very small radial clearance is generally 0.15 ~ 0.3mm, the axial clearance is generally 0.07 ~ 0.15mm, so the processing and assembly of high precision requirements. (9) generally used to transport the vortex pump pure liquid, when the liquid in the journal will be a result of wear and tear caused by radial and axial gap become larger, resulting in lower volumetric efficiency and flow and reduce pump performance.
Now, the vortex pump a wide range of applications in various sectors in the national economy, such as the tanker truck, tanker and fixed distribution of devices for high-lift pumping a small amount of liquids; public utility facilities in the city, used as a supply pump, can be used for low-power mobile equipment and agricultural water for washing equipment. In addition, as a fire pump, ship and general booster for the use of pumps. But in the current Chinese economy, China whirlpool pump problems of industrial development, many can not be optimistic about the situation, such as irrational industrial structure, industry focus on labor-intensive products; technology-intensive products significantly behind the developed industrial countries; decisive factor of production the role of being weakened; industrial energy consumption, and outputs the low rate of serious environmental pollution, the magnitude of natural resources; the overall size of small enterprises, technological innovation capability is weak, backward, such as the management level. What is the point of view of China from the vortex state of pump industry? The way of China since the vortex suction pump industry level of development? China since the vortex suction pump industry positioning and prospects for the development of what? China's industrial development whirlpool pump hot issue with the current economic correlation of how ... ... and so are the development of the vortex pump industry must face and solve the problem - the whirlpool pump industry has come to a fork; China since the vortex suction pump industry manufacturers in urgent need of choose the direction of development. According to some Chinese whirlpool pump industry research report, analysis of China since the vortex suction pump with the gap between the status quo of industrial development, ground-breaking concept of "the vortex of self-suction pump new industries" and the concept of alternative industries, and on this basis, from the four a dimension that is "people-oriented", "scientific and technological innovation", "environmentally friendly" and "future-oriented" and accurate definition of the term "new type of self-suction pump whirlpool industry" and the meaning of alternatives. According to "the vortex of self-suction pump new industries" and the eva luation of alternative systems and quantitative indicators of the system, from a new perspective on China since the vortex suction pump industry and the development of accurate prediction of the game, on this basis, China's administrative four metropolitan divisions and the whirlpool pump industry conducted a comprehensive study.
Vortex pump and therefore the "innovative" • "transformation" of the design and the transformation of China to meet the current needs of economic development has a positive meaning. This graduation project tasks and objectives: Drawing 32WB-30-type vortex pump design drawings (general assembly drawing and parts drawing). Papers written by the design (design manual calculation; quality and quantity to complete graduation project (thesis) tasks, the design of the contents of a reasonable thesis, the basic right. Design drawings in line with production and manufacturing processes with high manufacturability; the design of the vortex pump characteristics and the application of similarity theory to learn and explore. ns through the analysis of speed and efficiency, as well as the design flow of the pump performance curve, the impact of the contrast test, the change of pump performance. deduced vortex pump diameter D, exports in terms of diameter d formula method. as well as the appearance of structural properties of the vortex pump vortex pump designed to explore the practicality and efficiency. Therefore, in the design of continuous learning in the whirlpool pump for the development of a personal opinion are as follows plans the more common market a vortex pump, the pump compact structure, beautiful appearance, small size, low noise and reliable operation, use, maintenance convenience. can be widely used in chemical, pharmaceutical, petroleum, electroplating, food, movies, photography , laboratory, scientific research institutions, national defense industry and other units pumping acid, alkali, oil, rare expensive liquid venom, volatile liquid, as well as the circulating water equipment, filter machine. in particular is easy to leakage, flammable, explosive liquid of pumping, this pump is a better choice.
