Diesel generator sets are the providers of emergency backup power after the mains failure. Most of the time, the unit is in standby standby state. Once the power is cut off, the unit is required to start in an emergency and supply power urgently. Otherwise, the standby unit will lose its meaning. How can I achieve this? Practice has proved that strengthening daily maintenance is the most cost-effective method. Because the unit is in a static state, various materials of the unit itself will undergo complex chemical and physical changes with engine oil, cooling water, diesel oil, air, etc. Bad".
1, the unit start battery failure
The battery is unmaintained for a long time, and the electrolyte does not get replenished in time. The battery charger is not configured. The battery is discharged after a long period of natural discharge, or the charger used needs to be manually charged and floated. Due to the negligence of the switching operation, the battery power is not required. To solve this problem, in addition to configuring a high-quality charger, necessary inspection and maintenance is necessary.
2. Water enters the diesel engine
As the moisture in the air condenses in the temperature change, the water droplets are attached to the inner wall of the fuel tank and flow into the diesel oil, causing the diesel water content to exceed the standard. Such diesel oil enters the engine high-pressure oil pump and will corrode the precision coupling parts----- The plunger can seriously damage the unit, and regular maintenance can be avoided.
3, the retention period of the oil (two years)
The engine oil is mechanically lubricated, and the engine oil has a certain holding period. When stored for a long time, the physical and chemical properties of the oil will change, causing the lubrication condition of the unit to deteriorate during the operation of the unit, and it is easy to cause damage to the unit parts, so the lubricating oil should be replaced regularly.
4, three filter replacement cycle (wood filter, machine filter, air filter, water filter)
The filter is used to filter diesel oil, oil or water to prevent impurities from entering the body. In diesel, oil and impurities are inevitable, so the filter plays an important role in the operation of the unit, but At the same time, these oils or impurities are deposited on the wall of the filter to reduce the filter capacity of the filter. If the deposit is too much, the oil path will not be unblocked, so that the oil machine will be shocked when the load is running, because the oil cannot be supplied. Oxygen), so during the normal use of the generator set, we recommend: first, the common unit replaces the three filters every 500 hours; second, the standby unit replaces the three filters every two years;
5, cooling system
The water pump, water tank and water supply pipeline have not been cleaned for a long time, so that the water circulation is not smooth, the cooling effect is reduced, the water pipe joint is good, the water tank and the water channel are leaking, etc. If the cooling system is faulty, the consequences are: first, cooling The effect is not good and the water temperature in the unit is too high and the machine is shut down. The Weir letter unit is the most common. Second, the water tank leaks and the water level in the water tank drops, and the unit will not work properly. (To prevent the water pipe from freezing when using the generator in winter , we recommend that it is best to install a water heater in the cooling system).
6, lubrication system, seals
Due to the chemical properties of the lubricating oil or oil ester and the iron filings generated after mechanical wear, these not only reduce its lubricating effect, but also accelerate the damage of the parts, and at the same time, due to the corrosion of the rubber sealing ring, the oil seal It is also aging at any time and its sealing effect is reduced.
7, fuel, gas distribution system
The output of the engine power is mainly that the fuel is burned in the cylinder and the fuel is sprayed through the injector. This causes the deposited carbon to deposit on the injector. As the amount of deposition increases, the fuel injection amount of the injector will be limited. The effect is that the ignition timing of the injector is not accurate, the fuel injection amount of each cylinder of the engine is not uniform, and the working state is not stable. Therefore, the cleaning of the fuel system and the replacement of the filter components are smoothly carried out. The adjustment of the gas system makes it evenly ignited.
8, the control part of the unit
The control part of the oil machine is also an important part of the maintenance of the unit. The unit is used too long, the line joint is loose, and the AVR module works normally.
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Label: Why do diesel generators need regular maintenance?
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Calcium Sulfate : the commonly used calcined gypsum is the best coagulant for tofu production. In addition, calcium sulfate can also be used as thickening agent, acidity regulator and flour treatment agent.
Calcium Chloride: generally not used as tofu coagulant, can be used as low methoxy pectin and sodium alginate coagulant. It can also be used for making cheese, and can also be used as hardener for assorted vegetables, tomatoes and lettuce.
Magnesium Chloride: Salt brine is commonly used to make old tofu and dried tofu. Salt brine tofu has a unique flavor of tofu.
Propylene glycol: It can be used as a moisturizer and softener for bread, candy, packaged meat, cheese, etc. It can increase the elasticity of noodles, increase the flavor, whiteness and luster of tofu, and it can also be used as food antifreeze liquid.
EDTA salts: including disodium ethylenediaminetetraacetate and disodium calcium ethylenediaminetetraacetate. EDTA salts have the function of chelating metal ions, eliminating harmful effects caused by metal ions, preventing discoloration, deterioration, turbidity caused by metal, preventing loss of vitamin C due to oxidation, improving food quality, and are calcium nutrients. Fortifier.
Tin disodium Citrate : also known as 8301 color protection agent, is white crystalline, very soluble in water, easy to absorb moisture and hydrolyze, very easy to oxidize, mainly used in fruits and vegetables, edible fungi canned, antioxidant color protection role.
Gluconic acid-delta-lactone: Gluconic acid-delta-lactone can be used as a coagulant to make lactone tofu, as a preservative to preserve fish, poultry, shrimp, etc., as a sour agent to be used in juice drinks and jelly. As a chelating agent, it can be used in grape juice or other berry wine, dairy products and beer to prevent the production of tartar, milk stone and beer stone.
Herb extract: it is obtained by crushing, boiling, extracting, filtering, concentrating, and spray drying with dried herbs. It is light yellow solid powder. It is a gelatinous polysaccharide contained in the grass and can be used to make cake foods.
Microbialtransglutaminase is an enzyme that catalyzes the intra (or intra) acyl transfer reaction between proteins, resulting in covalent cross-linking between proteins (or polypeptides), and can catalyze the intra-molecular and inter-molecular covalent cross-linking of protein polypeptides, thereby improving the structure and function of proteins. It has significant effect on protein properties such as foaming, emulsifying, emulsifying stability, thermal stability, water retention and gel ability, and then improves the flavor, taste, texture and appearance of food. It can be applied to aquatic products, ham, sausages, noodles, tofu and so on.
In addition to the above substances, they also include phosphoric acid, sodium lactate, calcium lactate, calcium Carbonate in acidity regulators, alum in bulking agents, polyglycerol monofatty acid esters in emulsifiers, tween, stearic lactate, chymosin in enzymes, D-mannitol, maltitol, lactosol and sorbitol in sweeteners. The water retention agents include Trisodium Phosphate, disodium hydrogen Phosphate , pectin, propylene glycol alginate, xanthan gum, chitin, polydextrose, carrageenan, cordlan gum, hydroxypropyl starch and so on.
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