Self-current-stabilizing cylindrical linear induction electromagnetic pump
An electromagnetic pump and cylinder technology, applied in the field of electromagnetic pumps, can solve problems such as difficult processing and manufacturing, flow instability suppression methods, and complex pump body structure, so as to suppress unstable flow, reduce circumferential uneven distribution, and solve flow problems. unstable effect
Active Publication Date: 2020-04-10
JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH +1
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Problems solved by technology
The above patents have proposed some improvements and innovative measures for electromagnetic pumps, but the electromagnetic pumps are all applied at a small working flow rate, and do not mention the method of suppressing the instability of the flow in the large flow pump, and the structure of the pump body Complicated, difficult to process and manufacture
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[0029] In order to solve the technical problems of unstable internal flow and narrow high-efficiency zone of large-scale ALIP electromagnetic pumps, the embodiment provides a self-stabilizing flow cylindrical linear induction electromagnetic pump, combined with the attached Figure 1-2 to explain.
[0030] A self-stabilizing flow cylindrical linear induction electromagnetic pump, comprising a flow channel inner tube (5), a flow channel outer tube (6), an internal stator (7) and an integral external stator (8);
[0031] The inner tube of the flow channel (5) is coaxially arranged with the outer tube of the flow channel (6), and a flow channel for containing liquid metal is formed between the inner tube of the flow channel (5) and the outer tube of the flow channel (6), The inner stator (7) is located inside the inner tube (5) of the flow channel, and the integral outer stator (8) is located outside the outer tube (6) of the flow channel;
[0032] Both ends of the integral exte...
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The invention provides a self-current-stabilizing cylindrical linear induction electromagnetic pump. An external stator of the electromagnetic pump comprises at least two sections, each section of external sub-stator is a split stator, and every two adjacent sections of external sub-stators are evenly arranged in a staggered mode in the circumferential direction and assembled into an integral external stator with the function of suppressing unstable flow through a positioning chuck. The integral external stator can obviously reduce the influence of uneven circumferential distribution of the axial speed of the liquid metal on the stability of a flow field, so that the disturbance of non-axial Lorentz force and other factors on fluid is reduced, the flow stabilizing effect is achieved, and the flow stability of the large-flow pump under the small-flow working condition is greatly improved.
Description
technical field [0001] The invention relates to the technical field of electromagnetic pumps, in particular to a self-stabilizing flow cylindrical linear induction electromagnetic pump. Background technique [0002] Cylindrical linear induction electromagnetic pump (Annular Linear Induction Pump, ALIP) is the ideal pump type for the main cooling circuit and secondary circuit driving pump of the fourth generation liquid metal cooling fast neutron reactor. The wave magnetic field interacts with the induced current in the conductive fluid to generate a Lorentz force along the axial direction of the pump body to push the fluid to flow along the axial direction of the pump. The ALIP electromagnetic pump realizes the directional movement of the liquid metal in a completely closed condition. This driving method has a simple structure, no mechanical movement, no leakage, and can run stably for a long time. The experimental results show that when the large flow ALIP electromagnetic ...
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Login to View More IPC IPC(8): H02K44/06
CPCH02K44/06
Inventor 赵睿杰豆晓辉李静张德胜杨全保
Owner JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH