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Cooling technology for large-scale air-cooling steam-turbine generator type test

A technology of steam turbine generator and generator, applied in cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve problems such as difficulty in installing coolers

Active Publication Date: 2014-02-12
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 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 large-scale air-cooling steam-turbine generator type test
  • Cooling technology for large-scale air-cooling steam-turbine generator type test
  • Cooling technology for large-scale air-cooling steam-turbine generator type test

Examples

Experimental program
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Embodiment Construction

[0027] A type test cooling process for a large air-cooled turbogenerator, such as figure 2 As shown, the cooler 2 is not installed, the ventilator 7 is used instead of the cooler 2, and the air inlet 4 of the generator 1 is kept away from the air outlet 6. 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 cover 3 at both ends of the steam excitation, and the outside of the temporary process air inlet 4 is equipped as a ventilator 7 on site, and the air inlet of the ventilator 7 passes through The distance between 8 and the generator air outlet 6 realizes the control of the air intake temperature of the generator 1, and the control of the air intake of the generator 1 is realized by the cross-sectional area of ​​the ventilator 7, and is realized by installing an air filter cotton 11 on the ventilator 7 and the air inlet 8 Control the air intake cleanliness of generator 1. The tuyere 8 is equipped with an...

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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 of a large air-cooled turbogenerator. Background technique: [0002] Such as figure 1 As shown, the large-scale air-cooled turbogenerator (1) is a series of turbogenerators newly developed in the past two decades. Compared with hydrogen-cooled generators, this series of products has many advantages, and the key technologies are stator cooling capacity and ventilation. System cooling capacity. When the large air-cooled turbogenerator (1) is installed on site, the cooler (2) is installed in a cooling chamber at the outer bottom of the generator (1). This cooling chamber is specially used for installing the cooler (2). The external dimensions of the cooler (2) are formed by casting on site. Generally, when the type test of the air-cooled turbogenerator (1) is carried out in the manufacturing plant, the cooler (2) is installed according to the site layout. If the cooler (2) cannot be installed accord...

Claims

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Application Information

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Patent Type & Authority Applications(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