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Process of repairing heat dissipating section of diesel locomotive

A technique for repairing a diesel locomotive and its repair method, which is applied in the field of repairing a single heat dissipation section of a diesel locomotive, can solve problems such as high cost and waste, and achieve significant economic benefits, good use effects, and low maintenance costs

Active Publication Date: 2008-11-26
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no maintenance method for the single heat dissipation section in the maintenance regulations of railway locomotives. The common practice is to replace the single heat dissipation section with a new one after damage, which is very expensive and wastes a lot

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Embodiments of the present invention:

[0014] 1. Disassemble the single-section group of locomotive heat dissipation, and flush the dust on the surface of the single-section group with a water pipe.

[0015] 2. Visually inspect the appearance of the single section, deal with the corrugated belt rewinding, and remove the thick grease;

[0016] 3. Use special flushing tooling to flush the radiating single-section corrugated belt and the dust between the flat tubes;

[0017] 4. Put the rinsed heat-dissipating single section into the cooking and washing oven, prepare the cleaning solution with metal cleaner, and heat it to a constant temperature of 100°C for cooking and washing for 8 hours;

[0018] 5. After cooking and washing, blow dry to test the water pressure, find the leak point and mark it;

[0019] 6. After the heat sink is blow-dried, use 1033; H30-2 melamine epoxy grease paint (insulating paint) to apply a very thin layer to the leak to seal up the cracks, and then a...

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PUM

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Abstract

The present invention discloses process of repairing heat dissipating section of diesel locomotive. The process includes flushing the outside of the heat dissipating section to eliminate deposited dust, treating corrugated ribbon sheet, boiling to wash heat dissipating section inside boiling and stoving case with metal cleaner and blowing to dry, detecting leakage point through hydrostatic test, repairing leaking crack with insulating paint and baking, re-detecting hydrostatic test and flow test. The present invention makes the heat dissipating section repairable to save resource.

Description

Technical field: [0001] The invention relates to a method for repairing a single heat dissipation section of a diesel locomotive. Background technique: [0002] Diesel locomotive cooling water system is a temperature adjustment equipment specially equipped for locomotive diesel engines, which is mainly composed of high temperature water circuit, low temperature water circuit, cooling chamber device, expansion water tank and valve pipes. The cooling chamber device is a suction type, and the cooling fan is driven by a coupling. When the fan rotates, the cold air is drawn into the cooling chamber from both sides of the locomotive through the side shutters and the radiator. The heat carried by the circulating water in the radiator is absorbed by the cold air. It becomes hot air, which is discharged into the atmosphere by opening the top shutters of the wind carcass. [0003] The radiator is composed of 14 high temperature heat dissipation single sections and 26 low temperature heat d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P6/00
Inventor 余德门韦德刚徐林熊筑生沈光飞王友庚李鸿红刘琼
Owner GUIZHOU BRANCH CHINA ALUMINUM IND