Is there an introduction to the brand of fire standby diesel generator set?

The number of times the fire standby diesel generator set is generally not used much, so it is okay to use some general brands, such as the domestic series can consider Yuchai, Shangchai, Wuxi Power, Weichai (non-Weifang generator), if the quality requirements are higher, you can also consider Cummins.

If you feel that the brand new** is too expensive and the budget is insufficient, then you can consider purchasing a good second-hand Cummins.

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There are many brands of fire-fighting standby generator sets, such as Yanan Yanan diesel generator sets, imported Volvo diesel generator sets, Perkins generator sets. The quality of these unit brands is very good, but there is a gap in the first unit. Users can choose according to their budget.

However, the general unit has different uses (as a common power supply or a backup power supply), different use environments and different power of the unit, and the recommended unit brands are different! Users should choose the right unit according to the specific work needs!

There are domestic brands and international brands of diesel generator sets, generally Yuchai generator sets, Weichai generator sets, Perkins generator sets, Volvo generator sets, etc.

The selection of fire-fighting standby diesel generator sets can be based on the amount and power of electrical equipment, the use and installation place of the generator set, the owner's requirements for generator set automation and cloud service level, the owner's budget, etc.

Owners can refer to the above conditions to choose according to the actual situation.

There is a certain difference between the generator set of fire standby power supply and the ordinary standby generator set.

1. The fire standby generator set must be equipped with automation, automatic switching function, when the mains power is out of power under special circumstances, the diesel generator set must be started immediately within 30 seconds (adjustable), power generation and closing. When the mains power is restored to normal mode supply, the generator set should also stop generating power and open the switch within 30 seconds (adjustable), so that the mains can supply power normally;

2. The fire standby generator set mainly carries the fire pump, which has a relatively large power. The general configuration should be that the power of the generator set is three times that of the fire pump, so as to ensure that the fire pump can start normally in an emergency;

3. It is best to choose the diesel generator set produced by the regular manufacturer, so as to ensure that it becomes a real fire emergency generator set.

With the development of the economy, the load of the power grid gradually increases, and the phenomenon of power rationing occurs from time to time. As an alternative power source, diesel generators provide convenience for our production and life. There are so many brands of diesel generators, which generator set is more suitable?

Diesel generator brands include: Cummins generator set, Fujian Yanan generator set, Yuchai generator set, Weichai generator set, etc.

There are fixed generators, mobile generators, silent generators, and containers.

How to choose the generator set brand?

First of all, the owner understands that the electrical equipment that needs to be powered by the generator set is in the draft, and how much power is there?

Secondly, the use environment of diesel generators is **.

Again, what is the owner's budget.

There is also the requirement of the owner for the degree of automation of the diesel generator.

Owners and friends can screen several generator set manufacturers, comprehensive comparison, and field visits.

Requirements for firefighting standby diesel generator sets:

1) A class of high-rise buildings should be equipped with an automatic starting device and be able to supply power within 30 seconds;

2) Class II high-rise building self-provided generator set, when it is difficult to use automatic starting, manual starting device can be used.

When the regional power supply conditions can not meet the power supply reliability requirements of the primary load and the secondary load of fire protection, or it is uneconomical to obtain the second power supply from the regional substation, the self-provided fire backup power supply (diesel generator set) should be set up.

Self-provided fire-fighting backup power supply includes: emergency generator set, battery pack, uninterruptible power supply device (UPS), fuel cell.

The requirements for self-provided power supply for fire protection self-provided power supply in high-rise buildings for self-provided power generation equipment (self-provided emergency generator set) are:

There are two types of self-provided emergency generator sets: diesel generator sets and gas turbine generator sets.

When choosing a diesel generator set, it is advisable to choose a high-speed diesel generator set and a brushless automatic excitation device. Because, the high-speed diesel generator set has the advantages of small size, light weight, reliable starting operation, etc. The brushless automatic excitation device has the characteristics of adapting to various starting modes, easy to realize the automation of the unit or remote control of the generator set, and when used with the automatic voltage adjustment device, the static voltage regulation rate can be guaranteed within the meter.

The self-provided emergency generator set should be equipped with a fast automatic start and automatic power switching device, and have the function of three consecutive self-starting. For a class of high-rise buildings, the self-starting switching time is not more than 30s; For other buildings, manual starting devices can also be used when automatic starting is difficult. The unit should generally be started by electric start, and should not be started with compressed air.

The total number of generator sets should not exceed 2, and the capacity of a single unit is generally 800kw and below.

Gas turbine generator devices include gas turbines, generators, control panels, starter batteries, fuel tanks, air intake and exhaust, mufflers and other equipment. The unit can be divided into fixed type, movable type and orbital type. The generator is a three-phase AC generator at the same time, brushless AC excitation mode.

The cooling of gas turbines does not require water cooling but air cooling, and combustion requires a large amount of air, so the air requirements of gas turbine units are twice as large as those of diesel units. Therefore, the installation position must consider the above-ground floor or roof where the air intake and exhaust are convenient, and it should not be located in the underground floor, because the air intake and exhaust of the underground layer are difficult.

When the mains power is cut off, when the normal demand can not be met, it is necessary to consider setting up a fire standby diesel generator set as a backup power supply

The self-provided emergency 500kw diesel generator set should be equipped with a fast automatic start and automatic power switching device, and has the function of three consecutive self-starting. For diesel generator sets for high-rise buildings, the self-starting switching time is not more than 30s; For other buildings, manual start-up devices can also be used when it is difficult to use automatic start-up. The 500kw diesel generator set should generally be started by electric and should not be started with compressed air.

The total number of diesel generator sets should not exceed 2, and the capacity of a single unit is generally 800kw and below. The requirements of the fire self-provided power supply of high-rise buildings to self-provided power generation equipment (self-provided emergency generator set) are: (1) a class of high-rise building self-provided generator set, should be equipped with automatic start device, and can supply power within 30 seconds; (2) When it is difficult to use automatic starting, the manual starting device can be used when the self-provided generator set of the second-class high-rise building is difficult.

Diesel generator set acceptance includes:

1) When the diesel generator set is supplied, there are many parts, and it is necessary to count them one by one according to the packing list, check the main engine, accessories, special tools, spare parts and accompanying technical documents, check the certificate and factory trial operation records, and the generator and its control cabinet have factory test records. Usually the generator is ordered from the diesel engine factory to the motor factory, and then assembled into a generator set, and there is a factory test record of the motor manufacturer, which can be used for comparison in the handover test.

2) The appearance inspection should have a nameplate, no missing parts in the fuselage, and the coating should be complete.

Process handover confirmation for diesel generator set installation includes:

1) The unit can be installed only after the foundation acceptance is qualified.

2) The unit fixed by anchor bolts is mechanically installed by mechanical installation procedures such as initial leveling, bolt hole grouting, fine leveling, fastening anchor bolts, and secondary grouting; The installed unit will be flat and solid at the bottom.

3) The installation of oil, gas, water cooling, air cooling, flue gas emission and other systems and vibration isolation and noise prevention facilities has been completed, and there is no oil and no leakage after inspection, and the mechanism runs smoothly, and the automatic or manual control of the speed meets the requirements. In order to prevent accidents and fuel leakage during no-load test operation, which will cause fire accidents, fire extinguishing equipment should be equipped according to the design requirements or fire protection regulations, and fire extinguishing plans should also be prepared. When the static test of the generator, the random switchboard and the wiring inspection of the control cabinet are qualified, the diesel generator set installation work is qualified to do the next step of the generator no-load test.

4) The no-load test run and test adjustment of the diesel engine can be done in order to do the no-load test of the generator, otherwise it is unsafe to blindly bring the generator load.

Diesel generator set as a fire emergency backup power supply, is now indispensable, then, as a fire backup power supply of the generator set, and the ordinary standby generator set has a certain difference, as follows:

a, fire standby generator set must be automated, automatic switching function, when the mains power in special circumstances after the power failure, fire diesel generator set must be within 30 seconds (adjustable) immediately start, power generation and closing. When the mains power is restored to normal power supply, the generator set should also stop generating power and open the switch within 30 seconds (adjustable) so that the mains can supply power normally;

b. The fire standby generator set mainly carries the fire water pump, which has a relatively large power. The general configuration should be that the power of the generator set is three times that of the fire pump, so as to ensure that the fire pump can start normally in an emergency;

c. It is best to choose the diesel generator set produced by the regular generator manufacturer, so as to ensure that it becomes a real fire emergency generator set;