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Correctly handle the leakage of water in diesel generators

阅读:164次 发表时间:2019-08-28 Article Source: Wuhan Generator Leasing Company Read: 164 Times : 2019-08-28

Some customers do not know how to deal with the leakage problem that occurs occasionally during the use of Dongfeng Cummins diesel generators. What happened to the generator? After inspection, it was found that the generator has water. When the generator temperature indicator indicates a sudden rise, the ambient temperature does not change much or the generator air temperature basically does not change, and there is a significant difference in the temperature at the end of the generator or the air cooler. "Condensation" phenomenon. So what do we do?

Water leakage treatment process of generator set

1. Find out the cause of the water and immediately determine whether the generator is leaking. The domestic 300 MW generator set uses an air cooler. The generator leaks or fogs, and the leak is invisible.

2. Carry out a comprehensive inspection of the generator end, hot air pipes, air coolers, etc., and if there is a significant leak, stop it immediately. If no generator water leakage is found, the leakage should be determined whether it is an air cooler. It is recommended that the water gate event signed by the group be closed by condensation. When the gate is closed, the leakage is reduced. If the water is turned off, the leak is gradually reduced. Small and terminated, indicating that this group of air coolers is not leaking.

3. When the ambient temperature is not high, the humidity in the generator is abnormally high, the leak detector alarms, the air cooler does not leak air, does not check the generator for obvious leakage points, and the shutdown should be checked according to regulations.

Water treatment method for generator set

1. Add pads to prevent leakage

The diesel engine oil pipe joint leak-proof gasket leaks oil, you can add a layer of smooth double-sided thin plastic pads on both sides of the leak-proof gasket, tighten it tightly to prevent leakage.

2, paint chip liquid leakage

Leakage at the joints of diesel oil tanks, water tanks, crankcases, etc. After soaking the paint film in alcohol, apply the paint film liquid to the cleaned joints to prevent leakage. However, the cost of paint film is high, and it is generally used in emergency situations.

3. Oil leakage control method

When the paper pad of the diesel engine oil pan, cylinder head, gear chamber cover, crankcase back cover, etc. leaks, as long as the paper pad is intact and the joint surface is clean, you can put a layer of butter on both sides of the paper pad and tighten the bolts. Leakproof. If you use a new paper pad, soak the new paper pad in diesel for 10 minutes before installation, then remove it and wipe it, and then put a layer of butter on the joint surface before installing it.

4, liquid sealant leak control method

When a solid gasket defect (such as pits, grooves, cracks) occurs on the diesel engine to cause interfacial leakage and destructive leakage, apply liquid sealant to the cleaned solid gasket joint surface. After curing, it can form a uniform, Stable, continuously adhered, peelable film gasket prevents all leaks.

5, anaerobic glue leak control method

When leakage occurs on the vent bolts, stud bolts, screw plugs, etc. on the diesel engine, apply anaerobic adhesive to the cleaned bolts, threads or screw holes, which can quickly solidify to form a film, fill the gaps between parts, and can withstand Large pressure, and also has a strong anti-vibration and anti-loose fastening function. Such as used in the diesel engine high-pressure oil pipe joint thread, leakage control effect is better.

6. Dimensional recovery glue to cure leakage

When the shaft and shaft sleeve, bearing and bearing seat, valve and valve seat, self-tightening oil seal, felt cup and packing packing on the diesel engine leak, you can apply the size recovery glue on the cleaned parts of the wear parts, etc. After curing, a thin film layer with high wear resistance, heat resistance, and high mechanical strength is formed, and then machining, such as turning, boring, scraping, and filing, are performed to restore the geometry and fitting accuracy of the parts, thereby solving the problem of leakage.

7. Sticky glue to prevent leakage

When the body parts on the diesel engine, such as trachoma and stomata in the fuel tank, water tank, oil pipe, water pipe, etc., cause leakage, apply the adhesive to the cleaned and damaged area to receive the effect of leak control.

The above is a brief introduction on how to properly handle the leakage of water in the diesel generator set. I hope this knowledge will help you!