A high pressure blower

Abstract

The invention discloses a high-voltage booster, comprising an intermediate frequency motor, a moving impeller, a rectifier, an air intake cone and an air duct assembly. The rectifier is fixed on one end face of the intermediate frequency motor, and the moving impeller is installed on the motor shaft of the intermediate frequency motor. On the top, the intake cone is fixedly connected to the moving impeller, the air duct assembly includes an intake air duct and an exhaust air duct, the intake air duct is correspondingly sleeved with the intake cone and the moving impeller, and the exhaust air duct The air duct is correspondingly sleeved with the intermediate frequency motor, the moving impeller is composed of a first hub, a wheel disc and a moving blade, and the moving blade is an autonomous blade type with controllable diffusion, and the rectifier is composed of a second hub, a stationary blade and a motor The box is integrally formed, and the blade shape of the stationary blade is a curved-swept structure. The technical effect is: in this design, the basic gravity center stacking characteristics of the moving blades are not changed, so that the blade has the smallest creep amount in the long-term operation, so as to adapt to the design with small radial clearance, and the flow is controlled by static The sweep of the blades is ensured so that the impeller can maintain high efficiency characteristics.

Description

technical field [0001] The invention belongs to the application field of fans, and particularly relates to a high-pressure lift fan. The moving blades and static blades of the fan are suitable for axial-flow ventilation machines with a wind pressure of not less than 2500 Pa. Background technique [0002] In the 1990s, the series of curved and swept blade impellers studied in the United States laid the foundation for the three-dimensional design of modern curved and swept blades. The optimized comprehensive design of moving and stationary blade bending and sweeping is the development direction of modern practical design. The high margin characteristics of forward sweeping, the high flow characteristic of rear sweeping, and the secondary flow control characteristic of stationary blade bending all make aviation high-speed. The impeller can guide the design of low-speed and high-efficiency fans from the flow mechanism level. [0003] Another means of extending the angle of atta...

AI Technical Summary

Problems solved by technology

[0005] A large number of sweeping and sweeping methods are used in modern design to reflect its advanced nature. However, according to our 30-year research on flow control by sweeping and sweeping, a large number of sweeping and sweeping designs of moving blades are over-designed, and the resulting cost is to reduce the Increase the rigidity of the moving blade and increase the deformation of the moving blade, which is not conducive to the control of the blade tip clearance

Even if the design stress can meet the design requirements, it is not suitable for long-term small clearance operation, and the loss caused by the expansion of the radial clearance is much higher than the gain brought by excessive bending and sweeping

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