What are the general troubleshooting methods for Diesel generator set Generator Set general troubleshooting 1. After pressing the start button, the unit does not respond or rotates very slowly 1. Possible cause: The starting battery is insufficient Starter battery connection and plug loose Intermediate relay failure starter motor failure 2. Processing method: check the charge of the starting battery Check and fasten the starter battery wire and plug Check whether the intermediate relay works normally overhaul starter motor 2. The engine can rotate to a certain speed, but cannot ignite 1. Possible cause: No oil is ejected from the fuel injector (poor fuel supply) Fuel system leaks air The injection time of the fuel injection pump is inaccurate or the fuel injection pump is faulty 2. Treatment method: check whether there is air leakage or blockage in the oil circuit from the daily fuel tank to the fuel injection pump Open the exhaust screw to check the oil outlet Retry fuel injection Replace fuel injection pump and try again 3. Shut down after starting 1. Possible reasons: poor oil circuit, clogged filter, failure of oil pump Air filter heavily clogged Fuel injector failure temperature is too low 2. Treatment method: Check the smoothness of the oil circuit, replace the diesel filter if necessary, check the air filter, and replace it if necessary Adjust fuel injectors, replace if necessary 4. The Generator Set engine is not working properly 4.1 black smoke 1. Possible cause: The air filter is seriously blocked Wrong grade of fuel Exhaust back pressure too high Injection pump failure fuel injector bite Insufficient engine cylinder compression 2. Treatment method: check the air filter and replace it if necessary Check fuel quality (use Chinese light 0# diesel) Check the fuel supply of the fuel injection pump and readjust Check the atomization condition of the fuel injector Check whether the cylinder compression force is normal 4.2 Blue smoke or white smoke 1. Possible reasons: Improper selection of lubricating oil grade, excessive oil level Short startup time, engine temperature is too low Worn piston rings, supercharger failure 2. Treatment method: Check whether the lubricating oil is too thin, and check whether the oil level is within the specified range No need to deal with, the unit can run for a little longer Check the gap between the piston ring and the cylinder and the gap between the piston ring groove and whether the supercharger is working normally 4.3 Engine running unstable 1. Possible reasons: poor oil supply or air in the oil circuit Fuel injection pump or injector failure Air filter partially clogged 2. Treatment method: Check whether the oil circuit is unobstructed, whether the oil pipe joint is loose, whether the fuel filter is blocked, check the fuel injection timing of the fuel injection pump, whether the fuel pump rack is flexible, and check the atomization status of the fuel injector nozzle to check the cleanliness of the air filt...

What are the precautions for the design of exhaust system of Diesel generator exhaust system   The exhaust of Diesel generator is not only harmful but also high temperature, so the design of exhaust system should be paid special attention   If the back pressure of the exhaust system on the engine exceeds the specified value, the performance of the engine will be affected and the maintenance interval will be shortened   The shorter the exhaust system, the smaller the resistance (and back pressure), and the bending parts within the system have a significant impact on the resistance. The maximum allowable resistance of the exhaust system is   R=450 mmH20: All models except SR.6D   600 mmH20: SR   816 mmH20: 6D   The resistance is measured at the outlet of the turbocharger   The recommended material for the exhaust pipe is carbon steel pipe (non galvanized)   1.1 Calculation of exhaust resistance and determination of exhaust pipe diameter   The exhaust resistance is affected by exhaust pipelines and silencers, etc   The exhaust resistance of the pipeline is obtained from the following equation   Pipe Diameter  Insisde Diameter External Diameter A B 150 200 250 300 350 400 450 500 6 8 10 12 14 16 18 20 155.2 204.7 254.2 304.7 339.8 390.6 441.4 492.2 165.2 216.3 267.4 318.5 355.6 406.4 457.2 508.0  

1. The daily Fuel tank of Cummins generator set must be equipped with 1000L oil tank. A low oil level switch must be installed in the oil tank and warning signals for the 20% and 50% oil levels in two stages must be set.   2. The daiy fuel tank of Cummins generator set must be manufactured in accordance with national standards, using 4-6mm thick quality steel plates, with disc and flange shaped ends, all of which are welded.     3. The fuel tank of Cummins generator set must be equipped with a cover plate, oil level gauge, oil filling pipe sealing cap, fire extinguisher, ventilation cap, drip tray, slag discharge pipe, oil level switch, overflow pipe, manhole, oil storage gauge, etc. The oil storage gauge must be in the shape of a disc with clear markings of comparable dimensions to indicate the oil storage capacity, such as empty, 1/4, 1/2, 3/4, and full positions. The calibration of the fuel gauge must be demonstrated on site.   4. Cummins generator sets must be equipped with mesh filters that do not exceed 120 mesh holes on the oil outlet.   5. If the static pressure of the Cummins generator set oil tank is not sufficient for the selected engine, auxiliary electric oil transfer pumps and their auxiliary pipelines and related power sources must be provided to transport oil from the main oil tank to the engine. All electrical devices of the oil pump, including switchgear, motor starters, and cable terminals, must be explosion-proof.       6. A "close" valve manually operated by a pull wire must be installed on the fuel tank and engine oil supply pipe of the Cummins generator set for shutdown outside the machine room in case of an accident.       7. The oil supply and return pipelines of the Cummins generator set must be 50mm away from the surface with a temperature exceeding 200 ℃. If a soft oil pipe is supplied, the selected material must withstand a high temperature of 250 ℃.       8. A half cycle rotating hand operated oil pump must be installed on the oil tank of the Cummins generator set, accompanied by a sufficiently long inlet hose, valve, tee, and cock.

The base oil tank is provided with a water circuit circulation system; a diesel engine group; a water jacket heater, and the water jacket heater is respectively connected to the water circuit The system and the diesel engine group are connected, and the water inlet of the water circulation system and the water outlet of the water circulation system are respectively connected with Electromagnetic valves and cooling radiator are respectively arranged between the water jacket heaters, and the cooling radiator are connected with the diesel engine group. This new Practical uses the water jacket heater and the water circulation system installed in the base fuel tank to heat the fuel in the base fuel tank oil through heat transfer, which not only saves additional auxiliary energy supply for cold start, but also satisfies the need to increase the fuel temperature in the cylinder during the start-up phase of the diesel generator set

For professional diesel generator manufacturers, all the parts on the diesel engine are well known, so I believe that many unit users do not know what the holes on the top of the diesel engine are for, what are their names, etc. Question, below, the power will introduce the various functional holes of the diesel engine one by one.   1. The drain hole at the lower end of the cooling water pump housing This hole is used to drain water leaking from the water seal between the impeller and casing. Make sure it is unblocked during use, otherwise the leaking water will not drain out and enter the bearing seat, thereby accelerating the damage of the bearing. the 2. The lubricating oil hole on the small end of the connecting rod and the bushing The function of this small hole is to make lubricating oil delivered to the small end of the connecting rod and its bushing in time to lubricate. If this hole is blocked, it will accelerate the wear of the bushing, reduce its service life, and cause the engine to run prematurely. to produce a knocking sound. the 3. Intake and exhaust holes on the radiator box When the engine is working, the rise in water temperature in the closed cooling system will vaporize the cooling water and generate high pressure, which will cause the radiator core tube to burst and leak water. And when the engine load becomes smaller or stops running, the water vapor in the cooling system will condense into water to lower its pressure, and the pressure difference may cause the core tube to be crushed, hindering the normal circulation of cooling water. For this reason, an air vapor valve is provided on the radiator cover, and a public air hole is arranged to communicate with the atmosphere. When the water temperature rises, water vapor is generated in the radiator, the steam valve opens, and the water vapor is discharged from the hole; when the water temperature drops, the pressure drops, the air valve opens, and the outside air enters the radiator through the hole, thus ensuring the radiator The internal pressure is stable. During use, ensure that this hole is unblocked and cannot be blocked, otherwise it will affect the heat dissipation performance of the radiator and engine. 4. The vent hole on the fuel tank cap In order to prevent the fuel in the fuel tank from splashing due to vibration, the escape of oil vapor and the entry of external dust, the fuel tank should be covered and sealed. However, when the oil level is lowered due to fuel consumption, a certain degree of vacuum will be formed in the fuel tank, causing the oil pump to lose its ability to absorb oil; in addition, when the temperature is high, the fuel evaporates, and the oil vapor will cause excessive pressure in the fuel tank. Both of these situations require automatic communication with the atmosphere when there is a pressure difference between the inside and outside of the fuel tank. For this reason, vent holes are provided on the fuel tank cap to balance the air pres...

Definition of bi-fuel generator: Bi-fuel generator set (English name: Bi-Fuel Generator Sets or Dual Fuel Generator Sets) is an innovative technology that can use a mixture of diesel and natural gas as fuel, and can also be used in the absence of natural gas In this case, run on diesel only. It has the excellent and reliable performance of a diesel unit, but also has the advantages of economy and environmental protection of a natural gas unit. When the load of the unit does not reach 30%, the unit is fully powered by diesel. When the load continues to increase, natural gas starts to be injected and mixed with diesel for combustion. As the load increases, the amount of natural gas input will increase accordingly. Bi-fuel generator set (English name: Bi-Fuel Generator Sets or Dual Fuel Generator Sets) is an innovative technology that can use a mixture of diesel and natural gas as fuel, or run on diesel only in the absence of natural gas . It has the excellent and reliable performance of a diesel unit, but also has the advantages of economy and environmental protection of a natural gas unit. When the load of the unit does not reach 30%, the unit is fully powered by diesel. When the load continues to increase, natural gas starts to be injected and mixed with diesel for combustion. As the load increases, the amount of natural gas input will increase accordingly. Mercedes-Benz Dual Fuel System Mercedes-Benz dual-fuel control system has more than 3,000 operating unit cases in the world (Caterpillar, Cummins, Perkins, Jenbacher, Deutz, Waukesha), adapt to unstable gas supply, and can automatically switch to diesel mode It can be switched between /dual fuel mode, has a complete control and monitoring system, and can be connected to the original monitoring system through RS232/485. American GTI Dual Fuel System 1. GTI dual-fuel system is used in generator sets, so that diesel-burning units can use the mixed fuel of natural gas and diesel. By replacing the use of diesel with natural gas, fuel costs are greatly reduced. 2. The GTI dual-fuel system does not need to modify the unit itself, and will not affect the performance and power of the unit. 3. The unit is equipped with American GTI dual-fuel system, so that the unit can not only use conventional diesel as raw material, but also partially replace diesel with natural gas, thus greatly reducing operating costs and emission pollution. 4. Gas fuels suitable for dual fuel systems: pipeline natural gas PNG, liquefied natural gas LNG, compressed natural gas CNG, oilfield associated gas, biogas, coal bed methane, etc.