Erecting, putting down and hoisting method for bulb tubular turbine generator stator
A hydro-generator, light bulb through-flow technology, applied in the directions of transportation, packaging, load hanging components, etc., can solve the problem of excessive roundness of the inner diameter of the iron core, and achieve the effect of improving safety and not easy to deform
Active Publication Date: 2020-12-01
GUANGXI GUIGUAN ELECTRIC POWER CO LTD
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Problems solved by technology
[0003]
The invention provides a method for erecting and laying down the stator of a bulb tubular hydroelectric generator, which not only solves the problem that the inner diameter of the iron core exceeds the standard caused by the excessive deformation of the stator during the turning and hoisting process, but also eliminates the change of the center of gravity caused by the turning and hoisting process. The problem of instantaneous large impact load
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[0019] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the technical solutions of the present invention will be described in further non-limiting detail below in conjunction with specific embodiments.
[0020] Such as Figure 1 to Figure 3 As shown, a method for erecting and hoisting the stator of a bulb tubular hydro-generator includes the following steps:
[0021] 1) Prepare the stator hanger. The stator hanger includes a crane, a balance beam 2, a chain hoist 4, two Φ72 steel wire ropes 5 and two Φ70 steel wire ropes 5, and the balance beam 2 is processed and cut according to the actual size of the generator orifice. The cut length of the balance beam 2 is not less than the distance between the two connecting ears 6 connected to it by the steel wire rope 5;
[0022] 2) Connect two Φ72 steel wire ropes 5 to the hoisting pin shaft on the main hook 1 of the crane and the balance beam 2, and the angle between t...
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Abstract
The invention discloses an erecting, putting down and hoisting method for a bulb tubular turbine generator stator. A balance beam is used for erecting or putting down the turbine generator stator, thebalance beam is used for hoisting a stator, and compared with the mode that a steel wire rope is directly connected between a crane main hook and the stator for hoisting, centripetal tension borne bythe stator in the hoisting process is eliminated; and the stator hoisting connection point is located at the eccentric position of the stator, the whole stator does not need to be hoisted in the stator erecting and putting-down process, the stator is not prone to deformation, the impact load generated at the moment when the gravity center of the stator is changed in the erecting and putting-downhoisting process can be eliminated, and the turnover hoisting operation safety is improved.
Description
technical field [0001] The invention relates to the field of hydroelectric generators, in particular to a method for erecting and laying down the stator of a bulb tubular hydroelectric generator for hoisting. Background technique [0002] During the maintenance process of the bulb tubular hydroelectric generator set, the stator of the hydroelectric generator needs to be disassembled. During the disassembly process, the horizontally placed stator needs to be erected or the upright stator is placed horizontally. The stator has large dimensions, heavy overall weight, and low overall rigidity. During the process of erecting or lowering the stator, it is easy to deform and cause the roundness of the inner diameter of the iron core to exceed the standard. The change of the center of gravity produces a large impact load in an instant, and the operation risk is very high. Therefore, in the turning and hoisting operation of the turbine stator, how to prevent the inner diameter of th...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B66C1/12B66C1/14B66C13/08
CPCB66C1/122B66C1/14B66C13/08Y02E10/20
Inventor 覃方强陈开评徐刚
Owner GUANGXI GUIGUAN ELECTRIC POWER CO LTD