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Turn-to-turn insulation manufacturing method for rotor of inner air-cooled steam-turbine generator

A technology of steam turbine generator and turn-to-turn insulation, which is applied in laying solid insulation and other directions, can solve the problems of labor-intensive removal, secondary damage to copper wires, and burr generation, and achieves an increase in the first pass rate and high hole position accuracy. , the effect of high production efficiency

Inactive Publication Date: 2014-10-29
CITIC HEAVY INDUSTRIES CO LTD
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiency of the above-mentioned technology, the present invention provides a new technology, which solves the problem that the traditional technology is to directly bond the unpunched rotor inter-turn insulating spacer to the punched rotor copper wire, and then manually To punch holes for pads, this process is time-consuming and laborious, and it is easy to disengage the pads, damage the copper wire twice, produce burrs, and require a lot of manpower to remove the problem

Method used

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  • Turn-to-turn insulation manufacturing method for rotor of inner air-cooled steam-turbine generator
  • Turn-to-turn insulation manufacturing method for rotor of inner air-cooled steam-turbine generator
  • Turn-to-turn insulation manufacturing method for rotor of inner air-cooled steam-turbine generator

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Embodiment Construction

[0018] The special equipment, that is, copper wire automatic punching equipment, is specially manufactured for punching copper wire ventilation holes. It consists of 100T punch press, air compressor, punch tool (self-made), feeding device (roller device) and material receiving positioning device. . When performing the punching of the inter-turn insulating pads of the rotor, counter-rollers are installed on the feeding device to ensure uniform and smooth feeding, prevent the pads from bulging, and improve the punching accuracy.

[0019] like image 3 , Figure 4 The pressure plate of the roller device shown is equipped with adjusting bolts to adjust the gap between the two rollers (tighten the bolts and press the rollers to reduce the gap and increase the tightness, loosen the bolts to reduce the pressure of the rollers to reduce the gap and increase the tightness) to ensure that the rotor The conveying tightness of the inter-turn insulation pads. Because the thickness of th...

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Abstract

The invention discloses a turn-to-turn insulation manufacturing method for a rotor of an inner air-cooled steam-turbine generator. According to the technical method, turn-to-turn filler strip long holes and circular holes are formed automatically through special equipment, thereby realizing high accuracy and high production efficiency. After bonding, the first pass yield of a product is high, and the defects of low efficiency, damages to copper wires, production of metal burrs and the like in an original machining process are overcome.

Description

technical field [0001] The invention relates to the technical field of turbogenerators, in particular to a technical method for making inter-turn insulation of air-cooled turbogenerator rotors. Background technique [0002] At present, the domestic air-cooled turbogenerator rotor turn-to-turn insulation technology is as follows: bonding insulating pads on rotor copper wires with ventilation holes; pressurizing, heating, drying and bonding, and then manually punching insulating pads ventilation holes on the strip. This technical method has low processing efficiency and high labor costs, especially when manually punching the ventilation holes on the insulating pads, the copper wires of the rotor are often damaged, resulting in metal burrs, which cause inter-turn short circuits of the rotor coils, seriously affecting product quality, and post-processing. The cost is high and the construction period is delayed. Contents of the invention [0003] In order to solve the deficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/10
Inventor 姚晓明张国平张根现郑陵生沈微静高中臣倪建国贺文辉
Owner CITIC HEAVY INDUSTRIES CO LTD
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