Diesel Generator Tech

  Nowadays, in the larger environment, the power supply is very unstable, and many operators are looking for backup power sources, such as factories, enterprises, construction sites, etc., which are more suitable for using industrial diesel generators. So, what is an industrial diesel generator? Industrial diesel generators, consisting of a combination of  diesel engines  and generators, are used for power generation. Specifically, industrial diesel generators are composed of branded diesel engines, generators, bases, control systems, control circuits, and other auxiliary components. This large mechanical equipment is called a diesel generator, which consists of many components that are dismantled or assembled in the factory, but must be transported to the power base to provide a stable and reliable backup power supply. In general, the power of a generator varies greatly depending on the type of diesel generator set. Generally speaking, the power range of a generator is b...

When fuel economy, high thermal efficiency, and operating conditions change, the fuel consumption rate curve of Volvo generator sets changes relatively flat, and Volvo generator sets are also economical at low loads, with lower harmful emissions. The Volvo generator set has a wide range of applications, reliable and durable operation, and low faults due to the lack of ignition system. The maintenance operation of   Volvo generator sets   is simple, with fewer people, and maintenance is easy during standby period. The comprehensive cost of construction and power generation for Volvo generator sets is the lowest, with fast start-up and the ability to quickly reach full power in just a few seconds. The emergency shutdown process with full load within 1 minute is short, and frequent start and stop can be achieved. For turbocharged diesel Volvo generator sets, due to the low load, no load, and low boost pressure of the Volvo generator set, it is easy to cause a decrease in the seal...

When the temperature is low, the diesel generator shall be preheated, otherwise it is difficult to start. For the manually started diesel generator, gradually increase the speed, and then pull the pressure reducing handle to the non pressure reducing position, so that there is normal compression in the cylinder of the diesel generator. If the pressure reducing mechanism of the diesel generator is improperly adjusted or the valve is against the piston, it is often difficult to shake the car. It is characterized by that the crankshaft of the   diesel generator   can not rotate when it turns to a certain position, but can be retracted. At this time, besides checking the pressure reducing mechanism of diesel generator, check whether the meshing relationship of timing gear is wrong. For the diesel generator using electric starter, if the starting speed is extremely slow, most of the reasons are that the starter is weak, which does not mean that th...

Standardize the maintenance of diesel generator, ensure the good operation of diesel generator, and apply to the maintenance of various diesel generator. During the maintenance of diesel generator, attention shall be paid to the relative position and sequence of detachable parts, and marks shall be made if necessary. The structural characteristics of non detachable parts shall be noted, and the force for reinstallation shall be mastered. The maintenance cycle of   diesel generator   air filter is once every 50 hours of operation. When the transparent part of the display appears red, it indicates that the air filter of the diesel generator has reached the service limit, which should be cleaned or replaced immediately. After the treatment, gently press the button on the top of the display to reset the display. Loosen the iron ring of the diesel generator air filter, remove the dust collector and filter element of the diesel generator, and carefully clean the filter element ...

When the piston of the diesel generator moves up and down, the intake valve opens, and the fresh air filtered by the air filter of the diesel generator enters the cylinder to complete the intake stroke. The diesel generator or diesel generator plug moves from bottom to top, the inlet and exhaust valves are closed, the air is compressed, the temperature and pressure increase, and the compression process is completed. When the piston is about to reach the top, the fuel injector of the diesel generator sprays the filtered fuel into the combustion chamber of the diesel generator in the form of mist and mixes it with high temperature and high pressure air to ignite and burn automatically immediately. The high pressure formed pushes the piston of the   diesel generator   downward to work, drives the crankshaft to rotate, and completes the work stroke. After the work stroke of the diesel generator is completed, the piston of the diesel generator moves from down to up, and the exhaust...

If Yuchai diesel generator is installed under the aircraft, it is recommended to use Yuchai diesel generator remote radiator for cooling due to space constraints. The radiator in the remote radiator cooling system of Yuchai diesel generator is separated from the engine and dissipated by the electric fan of Yuchai diesel generator. This system can be used as a fully enclosed unit for outdoor use or as an open form for indoor equipment. When the radiator is installed more than 3 meters above the Yuchai diesel generator, most   Yuchai diesel generator   need separate water tanks and electric water pumps. The size of the branch water tank depends on the capacity of the entire cooling system, that is, the total number of pipes required plus the amount of cooling water used. The cooling water of Yuchai diesel generator is driven by an electric circulating pump, and the circulating pump of Yuchai diesel generator passes through the radiator and...

The compression ratio of a diesel engine in a silent diesel generator set is the ratio of the total cylinder volume to the combustion chamber volume. Its change not only affects the power and economy of silent diesel generator set, but also affects its starting performance. Each diesel engine is designed with an optimal compression ratio, but in the process of use, due to the influence of various related factors, the compression ratio of silent diesel generator sets often decreases. At the end of compression, the piston position is low, and the fit clearance of relevant parts is too large. When the fit clearance of the main bearing and main journal of the crankshaft of the  silent diesel generator set , connecting rod bearing and connecting rod journal, connecting rod bushing and piston pin, or piston pin and pin hole is too large. In the compression process of the mute diesel generator set, the actual position of the top dead center of the piston of the mute diesel generator set o...

Today, we will briefly introduce the characteristics of the main system structure of Volvo diesel generator set. Base: The base is composed of two forms, one is the base separate frame type, and the other is the base oil tank type. The base is formed by cutting and welding of channel steel and steel plate. The base is equipped with diesel generator bracket, generator bracket and water tank bracket. The base oil tank type is also equipped with oil filler, oil level gauge, oil inlet and oil outlet. Volvo diesel generator units below 150KW are all made of steel plates. All steel bases are subject to acid pickling and phosphating treatment and then sprayed with plastic. All edges and corners of the bases are treated with non-injured hands. Control system: The control system of  Volvo diesel generating set  is mainly composed of controller, relay, fuse, air circuit breaker, functional instrument, status indicator, brushless motor, electronic speed control actuator, electric regulat...

  One of the keys to correctly maintain the cooling system of diesel generator set is to use a water filter. Many diesel generator set operators believe that it is unnecessary to use a water filter after adding clean water and chemical additives to the cooling system of diesel generator set. This view is incorrect, because the dirt is inherent in the diesel generator set engine, and it has nothing to do with the use of high-quality cooling water. The sealing surface of the pump and cylinder liner deposits or the scaling of these parts, the cooling system components of the  diesel generator set  are corroded, worn, the thermostat is blocked, etc., and the cooler, radiator, Intercooler pipe and cooling system are blocked by oil. Oily deposits are formed on the heat transfer surface. When the diesel engine of the diesel generator set is maintained at "B" level for the first time (or the engine oil is replaced), the working core of the water filter of the diesel generator set...

  Bench grinder is mainly composed of grinding wheel, motor and machine body in the basic bench work equipment of Jichai diesel generator set maintenance. According to different shapes, grinders are divided into bench grinders and vertical grinders. The Bench grinder is mainly used for Jichai diesel generator set to grind various cutters and deburr small parts. When using the Bench grinder of Jichai diesel generator set, the safety operation regulations must be strictly followed. When using the Bench grinder of  JICHAI diesel generator set , the rotation direction of the grinding wheel must be consistent with the rotation direction indicator, so that the grinding debris can fly down from the grinding wheel. After the Jichai diesel generator set is started, the grinding wheel speed should be stable before grinding. When grinding with a Bench grinder, it is necessary to prevent the cutting tool or grinding parts from causing severe impact or excessive pressure on the grinding wh...

  The current diesel generator regulator can comprehensively reflect a variety of control signals, including voltage deviation signals, for excitation regulation, so it is called excitation regulator. Obviously, the excitation regulator includes the function of voltage regulator. The semiconductor excitation regulator of diesel generator is briefly introduced below. Excitation control system: the excitation system is an important part of the AC synchronous  diesel generator , which controls the voltage and reactive power of the synchronous diesel generator. In addition, the speed governing system controls the speed (frequency) and active power of the prime mover and diesel generator. The two are the main control systems of diesel generators. Excitation control system is a feedback control system composed of synchronous diesel generator and its excitation system. The excitation regulator is the main part of the excitation control system. Generally, it senses the change of diese...

Today we are going to introduce the installation inspection, material quality control and installation of diesel generator sets in water conservancy projects, hoping to help you. Environmental inspection before installation of  diesel generator set Before the installation of diesel generator set, all civil works shall meet the following requirements in addition to the requirements of technical specifications. 1. The environment in the machine room is clean, well ventilated and dry; 2. There should be no articles that can produce acid, alkali and other corrosive gases in the machine room; 3. Ventilation and exhaust facilities shall be installed; 4. There shall be no other objects in front of the radiator of the unit. Material quality control of diesel generator 1. The capacity specification of diesel generator set must meet the design requirements. 2. Check the main engine, accessories, special tools, spare parts and attached technical documents according to the packing list, check ...

  In order to prevent the   diesel generator   from rusting, when the product leaves the factory, its internal and external oil seals have been installed. Therefore, after the installation of the new unit is completed and meets the installation technical requirements, it must be unsealed before starting, otherwise it is easy to cause the unit failure.   Remove the oil seal as follows: ① Heat the diesel oil to about 50 ℃ for cleaning and removing the antirust oil outside the engine.   ② Open the door cover on the engine body and fuel pump to see if there is corrosion or other abnormal phenomenon inside.   ③ Turn the crankshaft manually to slowly rotate, observe the movement of the crankshaft connecting rod, fuel pump camshaft and plunger, and there should be no jamming or inflexibility. Move the speed control handle back and forth several times from low speed to high speed, and observe the movement of the rack and core sleeve should be free of jamming. ④ Hea...

The oil circuit system of Cummins diesel generator set includes oil tank, filter, oil-water separator, high-pressure oil pipe, fuel transfer pump, fuel injection pump (including governor), fuel injector, low-pressure oil pipe and return oil pipe. The tank is filled with precipitated and filtered diesel, which is the diesel fuel pump and the person pumped out from the tank. The diesel Frega filters the impurities and enters the injection pump. The high pressure and diesel output from the self-injection pump are injected into the combustion chamber through the high pressure system oil pipe and injector. Since the fuel supply of the pump is far greater than that of the fuel injection pump, the excess diesel oil is returned to the pump through the return pipeline. The fuel pump from the fuel tank to the population of this oil is called low-pressure oil. The low-pressure control oil circuit is only used to supply filtered fuel to the fuel injection pump. The oil pressure from the fuel injec...