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Cooling Technology for Type Test of Large Air-cooled Turbine Generator

A technology for turbo generators and generators, applied to cooling/ventilation devices, electrical components, electromechanical devices, etc., which can solve problems such as difficulties in installing coolers

Active Publication Date: 2016-01-20
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the type test station of the large-scale air-cooled turbo-generator (1) is different from that of the conventional air-cooled turbo-generator (1), the test station is a station used for the test of a hydrogen-cooled generator, and the general assembly and During the type test, it is difficult to install the cooler (2) in the pit

Method used

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  • Cooling Technology for Type Test of Large Air-cooled Turbine Generator
  • Cooling Technology for Type Test of Large Air-cooled Turbine Generator
  • Cooling Technology for Type Test of Large Air-cooled Turbine Generator

Examples

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Embodiment Construction

[0027] A type test cooling process for a large air-cooled turbo generator, such as figure 2 As shown, the cooler 2 is not installed, the ventilation tube 7 is used instead of the cooler 2, and the air inlet 4 of the generator 1 is far away from the air outlet 6. During the test, the process of completing the type test of the generator 1 by taking natural air from the factory The air inlet 5 of the machine 1 is changed to two temporary process air inlets 4 processed on both sides of the small end caps 3 at both ends of the steam excitation, and a ventilator 7 is provided on-site outside the temporary process air inlet 4, and passes through the air inlet of the ventilator 7 The distance between 8 and the generator air outlet 6 realizes the control of the inlet air temperature of the generator 1, and the cross-sectional area of ​​the ventilator 7 realizes the control of the air inlet volume of the generator 1, and the air filter 11 is installed in the ventilator 7 and the air inlet...

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Abstract

The invention relates to a cooling technology for a large-scale air-cooling steam-turbine generator type test. An air funnel (7) is manufactured; the ventilation area and the ventilation resistance are performed with computational analysis and test verification to ensure that in the test process, the cooling effect of a generator (1) is equal to that of a cooler (2) when the power plant runs. For the manufactured air funnel (7), the ventilation cleanliness can meet the type test requirements of the generator (1). The strength of the manufactured air funnel (7) can meet the requirements of vibration influence of the generator (1) due to cooling air quick flow in the test process, and the vibration influence of the generator (1) due to the test.

Description

Technical field: [0001] The invention relates to a type test cooling process for a large air-cooled turbo generator. Background technique: [0002] Such as figure 1 As shown, the large-scale air-cooled turbo-generator (1) is a newly developed series of turbo-generators in the past two decades. Compared with hydrogen-cooled generators, this series of products has many advantages. The key technology is the stator heat dissipation capacity and ventilation. System cooling capacity. When the large air-cooled turbo-generator (1) is installed on site, the cooler (2) is installed in a cooling chamber at the bottom of the body of the generator (1). This cooling chamber is specially installed for the cooler (2). The external dimensions of the cooler (2) are cast on-site. Under normal circumstances, when the air-cooled turbo generator (1) is type tested in the manufacturing plant, the cooler (2) is installed according to the on-site arrangement. If the cooler (2) cannot be installed accor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/02
Inventor 刘俊英孟秋温海明张雪冬张杨刘昱光
Owner HARBIN ELECTRIC MASCH CO LTD