The characteristics of Shangchai generator set, what are the characteristics and advantages of diese

The maintenance cost is low, the accessories are easy to buy, and the domestic neutral price is high!

The main advantages of diesel engine are: (1) high thermal efficiency High thermal efficiency, that is, low fuel consumption rate and good economy, especially diesel engine, it is the heat engine with the highest thermal efficiency, and the highest effective thermal efficiency has reached 46%. 2) Wide power range The power of a single machine can range from a few to tens of thousands of kilowatts, and the scope of application is large.

3) Compact structure, light weight, the ratio of the mass of the internal combustion engine to its calibrated power (called specific mass) is small, and it is easy to move. (4) It is quick to start, easy to operate, and can reach full load operation soon after starting. The main disadvantages of diesel engines are:

1) High requirements for fuel. High-speed internal combustion engines generally use gasoline or light diesel as feedstock, and the cleanliness of the fuel is strictly required. It is difficult to use solid or low-quality fuels inside the cylinders.

2) Vertical exhaust pollution and noise cause public nuisance. Because diesel engines have been widely used in various fields of the national economy, their output and ownership are huge, and the pollution to the environment is becoming more and more serious. (3) The structure is complex, and the processing accuracy of parts and components is required to be high.

1) Commonly used units.

This kind of generator set operates all year round, and is generally located in areas far away from the power grid (or mains) or near industrial and mining enterprises to meet the construction, production and living electricity consumption in these places. In areas with relatively rapid economic development, because the construction of the power grid cannot keep up with the needs of users, the common diesel generator sets with short construction period are set up to meet the needs of users. This type of generator set generally has a large capacity, provides continuous power to non-constant loads**, has no limit on the time of continuous operation, and allows 1 hour of overload power supply time every 12 hours, and the overload capacity is 10% of the rated output power.

Due to its long operating time and heavy load, the allowable power of this type of unit is adjusted to a lower point relative to the limit power of the machine.

2) Standby unit.

Under normal circumstances, the power required by the user is supplied by the mains, and when the mains power is curtailed and the power supply is interrupted or other reasons, the generator set is set up to ensure the basic production and life of the user. This kind of generator set is permanently located in the telecommunications department, hospitals, industrial and mining enterprises with tight municipal power, airports and television stations and other important units without electricity. This jujube Zhengbi unit is kept in standby state at all times and can provide continuous power for non-constant loads**.

3) Emergency unit.

For the electrical equipment that will cause large losses or personal accidents due to the sudden interruption of the mains, emergency generator sets are often set up to provide emergency power to these equipment, such as the fire protection system of high-rise buildings, evacuation lighting, elevators, control systems of automatic stool lifting production lines, important communication systems and medical equipment that are performing important surgeries with patients. This kind of unit should be able to start operation quickly when the mains power is suddenly interrupted, and provide stable AC power to the load in the shortest time to ensure timely power supply to the load, and the degree of automation of this kind of unit is relatively high.

The general power of diesel generator sets is from 8 to 2000kw, and the brands of diesel generators include Cummins generators, Perkins generators, Volvo generators, Yanan generators, Yuchai generators, Weichai generators, Shangchai generators and other brands. Generally, diesel generators include stationary generators, mobile generators, silent generators, containerized generators and other styles.

1. Diesel generator.

Groups have the following benefits:

1) Fuel economy, high thermal efficiency, and when the working conditions change, the fuel consumption rate curve changes relatively flat, and it is also economical under low load.

2) Reliable and durable. Because there is no ignition system, the failure is low.

3) Wide range of application.

4) Low harmful emissions.

5) Good fire safety.

2. Characteristics of diesel generator set:

1) There are many capacity levels of single machine. The units range from a few kilowatts to tens of thousands of kilowatts, and the largest domestic units are several thousand kilowatts.

2) The supporting equipment is compact in structure and flexible in installation location (1 10 of 34 82L kWh steam turbine for water cooling).

3) Thermal efficiency.

High and low fuel consumption (thermal efficiency 30-46%)

4) Start quickly, and can quickly reach full power It only takes a few seconds, and the emergency is within 1 minute with full load due (normal 5 30min) The shutdown process is short, and it can be started and stopped frequently.

5) The maintenance operation is simple, the number of people is small, and the maintenance is easy during the standby period.

6) The comprehensive cost of construction and power generation of diesel generator sets is the lowest.

The structure of the diesel generator is very compact, so its footprint is very small, in the process of use, it has high thermal efficiency, and it is very fast when it starts, its control system is very flexible, and the way to store diesel is also very convenient and enviable; The single capacity of the diesel generator set is a lot of song levels, when choosing a diesel generator, you can not only choose a high power, but also choose a small power, which can be reasonably configured according to personal needs.

Diesel generator set has a high thermal efficiency, the consumption of diesel in the process of use is very low, because the start is very fast, so its full power can be realized quickly, so the diesel generator can be used as an emergency power supply, it can achieve full load in a few minutes, so it is usually used as a standby power generation or emergency power generation.

The main function of diesel generator set is to provide power as a power supply equipment in the case of power failure or no electricity. It is mainly composed of diesel engine, generator, base, fuel tank, air switch, water tank, and some automatic control devices. It is mainly used as a raw material to generate power through diesel engines, and drive generators to generate electricity.

The application is also relatively wide, let's talk about the advantages and disadvantages of diesel generator sets:

Pros:1High efficiency ::

The power supply can be started in a very short time via an automatic control unit.

2.Wide range of needs to be met:

The power can range from a few kilowatts to tens of millions of kilowatts, and the commonly used ones are generally about 30kw-1500kw.

3.It's easy to use:

The mechanical version can be started directly in a few small steps.

4.**: You can choose a relatively good price according to your own practical situation.

5.Maintenance: Low maintenance and operation costs, can be started at any time when you want to.

Cons: 1Sewage and sound.

When the diesel engine is started, Luxin will produce a lot of smoke, such as the large diesel truck that has just started (it is an exaggeration to say that it is a Buqiao smoke generator type Zhenmeng), which is relatively loud.

2.The structure is complex.

The long-term operation is a bit of a test of the durability of the spare parts.

3.Volume. If the diesel generator set is relatively large, a certain amount of space needs to be reserved, and the volume of the machine will increase with the increase of power.

Diesel generator sets have the following advantages:

1) The fuel is smooth and sailing, the thermal efficiency is high, there is no cavity when the working conditions change, the fuel consumption rate curve changes relatively flat, and it is economical under low load.

2) Reliable and durable. Because there is no ignition system, the failure is low.

3) Wide range of use.

4) Low harmful emissions.

5) The dry sedan shirt has good fire safety.

It can be supplied without power grid, and only diesel generator sets can be used to supply power when the power grid is not connected in the early stage of general construction sites, high-speed, mines and other places. Compared with gasoline, the diesel engine can achieve greater horsepower with the same volume, and has a very high economy.

Gasoline Generator:

Pros:1Low noise; 2.Under low temperature conditions, it is easy and quick to start.

Disadvantages: High running costs.

Generally suitable for low-power, or portable generators.

Diesel Generators:

Advantages: Low running costs.

Cons: 1noisy; 2.Difficult to start at low temperatures.

Generally, diesel generators are suitable for generator sets with a relatively large success rate.

Features of diesel generator set:

1. There are many levels of single unit capacity, from several kilowatts to tens of thousands of kilowatts for international units, and several thousand kilowatts for domestic units.

2. The supporting equipment has a compact structure and flexible installation location (only 1 10 of 34 83L kW·h steam turbine for water cooling).

3. The generator has high thermal efficiency and low fuel consumption (thermal efficiency 30 46%)

4. It only takes a few seconds to start quickly and can quickly reach the safe power, and the emergency is brought to full load within 1 minute (normal 5 30min), and the shutdown process is short, and it can start and stop frequently.

5. The maintenance operation of the generator is simple, there are few people, and the maintenance is easy during the standby period.

6) The comprehensive cost of construction and power generation of diesel generator sets is the lowest.

Advantages of diesel generator sets:

1. Fuel economy, high thermal efficiency, less change in working conditions, relatively flat change in fuel consumption rate curve, and economy under low load.

2) Reliable and durable. Because there is no ignition system, the failure is low.

3) Wide range of use.

4) Low harmful emissions.

5. The generator has good fire safety.

The automatic voltage regulation forms of generators are: thyristor, phase compound excitation, TD1 carbon resistance automatic voltage regulation, and individual high-power tubes.

Shangchai diesel generator has excellent power, economy, stability, reliability, operability and low operation and maintenance costs, coupled with the complete after-sales service of the national warranty and sufficient accessories on the outlets.

Diesel generator set is a kind of power generation equipment with diesel as the main fuel, and the diesel engine is used as the driving force to drive the generator (i.e. electric ball) to generate electricity, and convert kinetic energy into electrical energy and heat energy. The whole set of diesel generator set is mainly divided into three parts:

1. Diesel engine.

2. Generator (i.e. electric ball).

3. a controller.

Subdivided: base, diesel engine, base fuel tank, generator set (i.e. electric ball), controller (plays the role of control, but also plays the role of protecting the unit), radiator (air cooling: fan; Water-cooled:

water tank), silent box and other components. According to the different needs of different places, we divide the generator set into fixed and movable trailers, in order to reduce the noise emitted by the generator set, reduce the impact on people's work and life, prompt the designers to design a generator set with a silent box, that is, a metal box is installed outside the generator set, and the sound-absorbing material is attached inside, so as to protect the generator set around, and doors are set on both sides of the box, so as to facilitate people's maintenance and control of the generator set. The silent box not only reduces the noise emitted by the generator set, but also can be placed outdoors, the box is like a house, sunscreen and rainproof, so that people can save the trouble of having no place to do the computer room.

Diesel generator sets are divided into common generator sets and standby generator sets, and the power is also divided into common power and standby power. The standard common power of each generator set is generally 80% of the standby power. According to different needs, the national grid is usually used, and if it is necessary due to power failure, please use a standby diesel generator set; If you need to run for a long time, please choose the common diesel generator set, if you need to maintain it frequently, the common diesel generator set can run for more than 300 days a year.

The relationship between common power and standby power is: for example, the user needs a 100kw diesel generator set, and the common power of a standby 100kw diesel generator set is 100kw*80%=80kw. That is, the common power of the standby 100kw diesel generator set is 80kw.

If the diesel generator set is equipped with a silent box, the power of the generator set will also decrease, generally about 10%. Therefore, when users purchase diesel generator sets, they should consider the power decline of the silent box.

Features: The performance of the unit is stable and reliable.

Low fuel consumption, low emissions, low noise.

The diesel generator set adopts rotary diesel, oil filter, dry air filter The unit is wear-resistant, durable, compact in structure and easy to operate.

Modern diesel generator sets are composed of diesel engine, three-phase AC brushless synchronous generator, control box (screen), heat dissipation water tank, coupling, fuel tank, muffler and common base and other components. The flywheel shell of the diesel engine and the axial direction of the front end cover of the generator are directly connected by the convex shoulder positioning to form a whole, and the cylindrical elastic coupling is used to directly drive the rotation of the generator by the flywheel, and the connection mode is fixed together by the screw, so that the two are connected into a steel body, and the concentricity of the crankshaft of the diesel engine and the rotor of the generator is guaranteed to be within the specified range.

Diesel generator set is composed of a combination of an internal combustion engine and a synchronous generator, the maximum power of the internal combustion engine is limited by the mechanical load and thermal load of the parts, which is called the rated power, and the rated power of the alternating current generator refers to the rated power output of the diesel engine and the rated power output of the synchronous alternator at the rated speed.