2015年10月9日星期五

The purpose of the diesel genset has a lot of, also very widely used.China full power as a professional diesel genset manufacturer, said the main purpose of the diesel genset.
1.Self-provided power supply: no net electricity supply or supply is normal, in the case of the electrical need not too big.
2. Standby power: also known as the emergency power supply reliability of power supply security demanding scenarios.
3. The peaking power: make up the net electricity supply, under the condition of electricity.
4. Mobile power supply, mobile power supply is generally designed to power vehicles form, used in work flow, there are also some mobile power as the nature of the emergency power supply.
Diesel genset is most self-provided power supply and standby power supply, has been widely applied in communication stations, to ensure the reliability and stability of power system.


2015年10月8日星期四

The influence of elevated altitude use of diesel generator set

1. With the increase of altitude, the environment temperature is lower than that in plain area, generally every 1000 m, the environment temperature is about 6 degrees Celsius, and thin air, because the plateau as a result, the start of the diesel generator sex than plain area is poor.Users in the use, and low temperature start corresponding auxiliary start measures should be taken.
2. The output of the diesel genset current will change along with the change of altitude.Altitude increases, the power of diesel generator set, that is, output current, the fuel consumption rate, the effect is to spread to the electrical performance index in different degrees.Due to the rise of altitude, the boiling point of water.At the same time, wind pressure and cooling air quality of cooling air is reduced, and heat release per kilowatt in unit time increases, so the cooling system of heat dissipation conditions worse than plain.At high altitudes shoulds not be commonly use open cooling loop, closed cooling system pressure can be used to improve the plateau when using the boiling point of coolant.
3. As a result of the plateau low pressure, thin air, less oxygen component, the environment temperature is low, especially for natural intake diesel engine, combustion condition is poor, due to lack of air inflow diesel generator can't send the original is the nominal power, displacement, speed is different, so the ability to work in the plateau is not the same.When used in plateau, every 1000 m, rising power booster is about 6-10%, booster about 2 ~ 5%, so in plateau, use for a long time should be according to the local elevation, when the appropriate reduce oil.
4. The load moment of change, will cause the engine torque moment of change, and the output power of diesel engine is not instantaneous change, in general, instantaneous voltage and the instantaneous speed of these two indexes is not affected by altitude, but for the diesel units, the lagging behind of the supercharger response speed affect the response speed of the diesel engine rotating speed, the two measures was increased.


2015年10月7日星期三

How to prolong the service life of diesel generator set.

Diesel genset parts contained in the air filter diesel filter, oil filter, and the three kinds of filter, to extend the service life of diesel generator set, in use process, will strengthen the air filter, oil filter, diesel filter and maintenance, give full play to their role.Air filter in the installation not packing, reverse, or when the fault with the sealing gasket and rubber connecting pipe, and ensure good sealing.Use of air filter paper dust cup, 50-100 working hours, every time to remove dust, can soft brush to brush the dust off, if the working time or damaged more than 500 hours, should be timely replacement.Using oil bath air filter, 100-200 hours per work, should be cleaned clean diesel filter, and replace the oil, if the filter has been broken, will need to be replaced immediately, and pay attention to in use, in accordance with the provisions, add the oil.Have filter in diesel generator set use if not timely maintenance, filter blockage, oil pressure increases, the relief valve opens, lubricating oil directly into the main oil way, exacerbate lubrication on the surface of the wear and tear, affect the service life of the diesel generator set.Therefore, the oil filter every 180-200 work hours, is clean, found damaged, should be replaced immediately, to prevent impurities from entering the smooth surface.Change garments according to the using a diesel genset, still should clean surface of crankcase and lubrication, method is to use the oil, kerosene and diesel blend to make washing oil, deal with the various parts of the whole fuel oil supply system for cleaning.Use diesel, should conform to the requirements of the season, and after 48 hours of precipitation purification treatment.





2015年10月6日星期二

How to choose the emergency diesel generator set

As the power generation system is indispensable equipment, the use function of emergency electric generator has a huge, in some power dense, supermarket, hospital, construction sites, etc., use of electricity will be heavy, how to alleviate power huge gap, that is about to rely on the emergency generator.
Most of the friends will prepared emergency generator, the use of the most common is small diesel generators, how should choose?As a professional generator manufacturer for your detailed introduction:
First of all, small yo generator characteristics.
Emergency diesel generator is mainly used in important place, in an emergency or accident happens instantaneous power, through the emergency generator back quickly and to extend the time of a power supply, common for small diesel generators, main characteristic is: the power quickly, for 12 hours;External power supply back up, automatically cut off power supply, ensure the equipment can use for a long time.
Second, how to choose the generator.
Demand for different occasions, electricity generator is not the same.When have many sets of genset spare, generally only set up an emergency diesel generator set.From a reliability considering also can choose two sets of parallel power supply.
In addition, the emergency units for choose high speed, pressure, low fuel consumption, with the capacity of diesel generator set.So easy to use on the large equipment, the most important point, generator made selection with brushless excitation or compound excitation device of synchronous motor, more reliable, low failure rate, maintenance is convenient, save maintenance time.
In general, choose emergency diesel generators, is to select stable, efficient and convenient equipment, so as to ensure the supply of electricity is insufficient, does not affect the development of the construction schedule, the follow-up is more simple and convenient.


2015年10月5日星期一

Noise analysis of diesel generator set

The noise of the diesel generator set is composed of a variety of sound source complex sound source.According to the way of noise radiation, can be divided into the aerodynamic noise, surface radiation and electromagnetic noise.According to the production reason, diesel generating sets surface radiated noise can be divided into combustion noise and mechanical noise again.Lifting the aerodynamic noise is the diesel generator set noise of main noise sources.
1. The aerodynamic noise is due to the unsteady process of the gas, which is by the disturbance of the gas and gas interact with objects of the noise of the diesel generator set.The aerodynamic noise directly to the atmospheric radiation, including air intake and exhaust noise and cooling fan noise.
2. The electromagnetic noise is generated by the generator rotor high-speed rotation in the electromagnetic field of the noise of the diesel generator set.
3. The combustion noise and mechanical noise is difficult to distinguish between, is usually due to diesel generator set combustion formation pressure in the cylinder by cylinder head, piston, connecting rod, crankshaft, the body to the outside noise radiation of diesel generating set is called combustion noise.The piston of the cylinder liner strikes and movement of the mechanical vibration of diesel generator set noise called mechanical noise.Generally di diesel engine combustion noise than mechanical noise, instead of a di diesel engine mechanical noise is higher than that of combustion noise.But low speed combustion noise were higher than that of mechanical noise.

2015年10月4日星期日

The choice of diesel generator set factors should be considered.

Unit selection should consider the factors mainly include mechanical and electrical properties, the purpose of the unit, load capacity and the change range of automation function, etc.
1. The purpose of the unit.Because the diesel generator set can be used on three kinds of commonly used, standby, emergency situation.In turn, different USES is different to the requirement of diesel generator set.
2. Load capacity.Should choose according to different purposes of load capacity and load range, determine the diesel generator set of single machine capacity and the capacity of standby diesel generator set.
3.The machine (mainly refers to the use of altitude and climate conditions).
4. The choice of diesel generators.
5. The generator and excitation mode choice.
6.The choice of diesel generator automation function.

2015年10月3日星期六

The brand diesel generator is introduced.

Huaquan power as a diesel generator supplier,to introduce several kinds of world famous brand diesel generator engine.
Perkins:Perkins, the company in 1932 is one of the earliest production engine company in the world.Produced by diesel oil and natural gas as a fuel engine because of its economy, reliability and durability advantages in industries widely promotion and application.Such as automobile, engineering machinery, agricultural machinery, industrial power generation units and ships, etc.
Cummins: America Cummins engine company was founded in 1919, mainly produces power generation equipment, industrial and automotive and other industries with the engine.Cummins diesel engine in the world is in a leading position in technology, has always been more than 200 horsepower diesel engine manufacturers and more than 50 diesel engine's second largest manufacturer.Its products with superior performance, excellent quality, reasonable price, loyal service throughout the world, has developed into one of 500 famous multinational companies in the United States.
MTU: MTU company is Daimler - Benz diesel propulsion system part of the company, the world's top heavy diesel engine manufacturing company, its products are widely used in military vehicles, railway vehicles, Marine vessels and prime power station.MTU company predecessor as early as in 1883, has developed the first internal combustion engine car at a high speed.In 1901, the design, manufacture the world famous Mercedes cars.Since 1909, from the aircraft engine to produce heavy diesel engine.1932 start manufacture high-performance diesel engine.Now the company's main products are heavy diesel engine MTU, gas turbine engine, engine management systems and electronic monitoring system and overloading transmission.
Volvo penta: a history of more than 120 years, multinational companies, a Swedish companies in the world top 500, the specialty is engaged in the heavy machinery, trucks, cars, ships.From the production of the first heavy trucks to one of the world's three big luxury car Volvo cars, from one hundred thousand tons of cruise to the world-famous Volvo penta - diesel engines, heavy power is ubiquitous in the field of Volvo penta - style.The high performance indicators, high reliability, environmental protection, low noise, easy installation, good ability to adapt the plateau characteristics such as highly regarded in the application.