How should Cummins generator set carbon removal?

In the maintenance of Cummins generator process, often encountered the need to remove valve, piston, cylinder head carbon accumulation problem. What is generator carbon deposit? How did it come about? How should it be cleared? I believe that these problems are many cummins generator users want to consult the problem, the following Jiangsu Meao Power Technology Co., Ltd. to tell you about this problem.

Cummins generator set as the domestic sales of the best generator, it is very many advantages, such as: wide application, reliable performance, can be integrated in the factory with high displacement, environmentally sensitive locations. However, some cummins generator parts can produce very strong carbon deposits on the surface after a period of use. How does this come about? Carbon deposition is a complex mixture composed of colloid, asphaltene, oil coke, lubricating oil and carbon which is formed under the action of high temperature due to the incomplete combustion of fuel and lubricating oil in diesel generator set during combustion.

Carbon accumulation has many disadvantages: Because the thermal conductivity of the carbon is poorer, for example, a lot of parts surface accumulation of carbon, will lead to local overheating parts, make its stiffness and strength degradation, serious when still can cause sintering, nozzle valve ablation, piston ring card dead, cylinder and so on serious fault, in addition to carbon, with large will pollution, clogging oil lubrication system and filter, shorten the service life of cummins generator set, It must therefore be eliminated.

1. Polishing method: USES steel wire brush, spatula, bamboo or gauze of carbon deposit parts such as grinding shave their gently to remove carbon deposit method, although this method is simple, but the mechanical grinding method to remove carbon deposit effect is not so good, poor quality, some parts are difficult to clean, also left many tiny zoned cross, become a new growing point of carbon deposition, destroy the parts surface roughness, Therefore, parts with high precision should not use this method to remove carbon accumulation.

2. Chemical dissolution method: for the surface of the finished parts, with chemical solution such as solvent, surfactant to dissolve and remove. Operation method: The parts are immersed in sodium hydroxide, sodium carbonate and other cleaning solution, the temperature is 80-95℃, so that the grease is dissolved or emulsified, charcoal becomes soft, about 2~3h after removal, and then brush charcoal, with 0.1%~0.3% potassium dichromic hot water cleaning, finally with compressed air dry.

3. Electrolytic cleaning method: alkali solution as the electrolyte, chemical reaction and hydrogen stripping under the joint action of removal.

Jiangsu Meao Power Technology Co., Ltd. focuses on the development and manufacture of diesel generator sets, and has accumulated rich experience in manufacturing and service in this field. As a professional generator manufacturer, MEAOPOWER attaches great importance to product development, innovation and service quality, and maintains close strategic cooperation with famous domestic and international enterprises such as Cummins, Perkins, Doosan, Yuchai, Weichai, Shangchai, Wuxi Wandi, Lillesomer, Stanford, Marathon and so on.