What are the cooling methods of diesel generator sets?to18000et
Different types and different capacities of diesel generator sets are not exactly the same cooling form. However, the cooling medium used is generally air, hydrogen, and water. For general synchronous generators, its cooling system is closed, and the cooling medium is recycled.
1. Air cooling
Air cooling is the use of fan air supply, with cold air against the diesel generator set winding end, generator set stator and rotor to blow heat dissipation, cold air absorbs heat and becomes hot air, after the initial convergence of the breath between the stator and the rotor, it is discharged through the air duct of the iron core, and cooled through the cooler. The cooled air is then sent to the generator by a fan for internal circulation to achieve the purpose of heat dissipation. The machines are generally air-cooled and are medium and small synchronous generator sets.
2. Hydrogen cooling
Hydrogen cooling uses hydrogen as the cooling medium, and the heat dissipation performance of hydrogen is better than that of air, and most of the large turbine generator sets are cooled by hydrogen.
3. Water cooling
Water cooling is the method of stator and rotor double water internal cooling. The cold water external water system of the stator water system flows through the water pipe to the water inlet ring installed on several stator seats, flows to each coil through the insulating pipe respectively, absorbs heat, and then collects it into the water outlet ring installed on the base through the insulated water pipe, and then discharges it to the water system outside the generator for cooling.
The cooling of the rotor water system is fed into the inlet bearing installed at the side shaft end of the exciter, and then flows into the center hole of the rotating shaft, where it flows to the water collection tank along several meridional holes, and then flows to the coils through the insulating pipe. After the cold water absorbs heat, it flows into the outlet tank through the insulated pipe, and then flows to the outlet support through the drainage hole on the outer edge of the outlet tank, and is led out by the outlet pipe.
Because water dissipates much more heat than air and hydrogen, the generator sets of new large and medium-sized power plants are generally cooled by water.
Model: TO22000ET-Z
1. Generator parameters:
Rated power: 20kva
Standby power: 21kva
Rated frequency: 50Hz
Rated voltage: 380V
Start mode: electric start
Mechanism Type: Cabinet type
Power factor: 08
Phase: three phases
Motor Type: Excitation inductive motor
Two. Engine parameters:
* Engine model: YOTO2200-Z
Cooling method: Water cooling
Rated speed: 1500r min
Cylinder structure: direct injection, four-cylinder, in-line
Cooling method: Water cooling
Combustion system: direct injection type
Air intake: turbocharged
Insulation Rating: Class H
Speed regulation mode: mechanical speed regulation
Silencing device: Industrial silencing
*Fuel tank capacity: 50L
Oil type: SAE 10W30 (or CD).
Fuel Type: 0
Generator speed: 1500r min
Three: the parameters of the whole machine:
Fuel Meter: Yes
Voltage Gauge: Yes
Output Indicator: Yes
Automatic Pressure Regulation: Yes
Machine fuel consumption: 215g kwh
Working time: 8-12h
Machine weight 500 620kg
Dimensions: 1400*700*1000mm
Four. Included Accessories:
Manuals, warranty cards, certificates, cables, random gadgets, tool kits
Warranty:
(Domestic) warranty of 12 months or cumulative operation of 1000 hours;The first to expire is the first to expire.
Due to product quality problems, free maintenance or replacement parts are implemented, and lifelong paid services are provided
(Wearing parts, common parts, man-made damage, negligent maintenance, etc. are not covered by the warranty).
If it is adjusted by the original factory, it will be implemented in accordance with the original factory warranty regulations!
Note: There will be a slight loss of power in high temperature environments