Vane-type micropump rotor
A micro-pump and vane-type technology, applied in the direction of non-variable pumps, non-volume pumps, pumps, etc., can solve the problem of poor physiological compatibility of blood pumps, which is not conducive to reducing the movement time of fluid micro-groups, and is not conducive to improving Pump efficiency and other issues, to achieve the effect of safe transportation, reduce axial water thrust, and improve efficiency
Inactive Publication Date: 2009-10-28
北京农机实习机械厂 +1
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Problems solved by technology
For blood pumps, circulating flow is not conducive to reducing the movement time of fluid microgroups in the pump, which makes the physiological compatibility of the blood pump worse, and is not conducive to improving the efficiency of the pump
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[0015] The principle and structure of the present invention will be further described below in conjunction with the accompanying drawings.
[0016] figure 1 The main sectional view of the vane micropump rotor provided by the present invention. The vane micropump rotor includes a main impeller 5 , a first impeller suction port 3 , a second impeller suction port 7 , a first auxiliary impeller 2 , a second auxiliary impeller 8 , a first permanent magnet 1 and a second permanent magnet 6 .
[0017] The main impeller 5 , the first auxiliary impeller 2 , the second auxiliary impeller 8 , the first permanent magnet 1 and the second permanent magnet 6 form an integrated rotor structure of the vane micropump. The main impeller 5 is arranged in the center of the rotor, and the first impeller suction port 3 and the second impeller suction port 7 are arranged along the axis of the rotor, which communicate with the inlets of the first auxiliary impeller 2 and the second auxiliary impeller...
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The invention relates to a vane-type micropump rotor, in particular to a rotor suitable for a vane-type micropump which has no external connection mechanical axis, allows no leakage of fluid, or avoids the contact between the fluid and the exterior of the pump. The rotor mainly comprises a main impeller, an impeller suction inlet, a permanent magnet, a first auxiliary impeller and a second auxiliary impeller; the main impeller is arranged at the center of the rotor, the first auxiliary impeller and the second auxiliary impeller are respectively positioned at the two ends of the rotor, and symmetrically arranged relative to the main impeller; the inlets of the first auxiliary impeller and the second auxiliary impeller are respectively communicated with the first suction inlet and the second suction inlet of the impeller, and the outlets of the first auxiliary impeller and the second auxiliary impeller are respectively communicated with the outlet of the main impeller. The invention can effectively form smooth and symmetrical flow condition, improve the hydraulic efficiency of the pump, and significantly reduce axial and radial fluid acting force received by the rotor. The vane-type micropump adopting the rotor can guarantee the separation between the fluid in the pump and the outside, and realize high-efficiency and safe transmission with no leakage and no pollution.
Description
technical field [0001] The invention relates to a rotor of a vane-type micropump, in particular to a rotor of a vane-type micropump suitable for no external mechanical shaft, fluid leakage is not allowed, and a pump impeller and a motor rotor are integrated. The invention can be applied to safe delivery devices for single-phase or multi-phase fluids such as blood circulation devices or artificial hearts, chemical agents and liquid precious metals. Background technique [0002] Due to the advantages of vane micropump in space size, it has been applied in many important industries. The vane micropumps currently in use are mainly divided into two categories according to the support structure of the impeller: one is the form of an external mechanical shaft, that is, the impeller of the pump is directly fixed on the mechanical shaft and rotates with the mechanical shaft; the other is the use of electromagnetic bearings. form. For vane-type micropumps with an external mechanical...
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IPC IPC(8): F04D1/00F04D29/18
Inventor 易运池罗先武刘树红张瑶朱雷许洪元
Owner 北京农机实习机械厂