This means the rated active power of a generator.
The common unit MW means megawatt, 1 megawatt (MW) = 1,000 kilowatts (KW), 150 MW = 150,000 KW, or 150,000 kilowatts.
Installed capacity refers to the sum of the rated power of all steam turbines or hydroelectric generation units installed in thermal or hydroelectric power plants. It is one of the main indicators that characterize the construction scale and power generation capacity of a thermal or hydroelectric power station. The unit is "kW". The total installed capacity of the electricity system refers to the sum of the nominal effective power of the generating units actually installed in the system, measured in kilowatts (KW), megawatts (MW) and gigawatts (GW) (10 to the power of 9). ).
Detailed information:
Capacity of the hydroelectric power station generator unit
Sum of the rated capacity of the hydroelectric power station turbine generator unit. This is one of the most important characteristic values of a hydroelectric power plant. The capacity of a hydropower plant in working, standby and maintenance status during operation is called working capacity, standby capacity and maintenance capacity, respectively. The sum of the three is called the required capacity.
Sometimes the installed capacity of hydroelectric plants is increased beyond the necessary capacity. Its role is to produce more seasonal electricity during the flood season, replace thermal energy and reduce the fuel consumption of the system, but it cannot reduce the installed capacity of the electricity system. This part of the capacity is called duplicate capacity. During the different aHydrological years and seasons, as the working status of the hydropower plant and the requirements of the power system of the hydropower plant are different, these capacities are different, and under certain conditions they can be converted into each other.
Work capacity is the active power generated by the hydroelectric plant when it is responsible for loading the electrical system. The maximum daily working capacity of the hydroelectric plant is linked to the average daily production, at the system load. and whether it can be adjusted daily.
In wet periods and when the load is high, the working capacity is large and the corresponding reserve capacity may be smaller; during dry periods and when the system load is low, the working capacity is low and the reserve is low; the capacity can be larger. Unit maintenanceHydroelectric power plants are usually scheduled during the dry season, so maintenance capacity is important during the dry season. During the operation of the power system, due to load changes, sometimes part of the capacity is not used and is in an inactive state. This part of the capacity is called unused capacity.
Installed capacity from Baidu Encyclopedia
Where is the world's first ocean hydropower plant located?
It depends on the amount of energy produced. . Coal consumption is generally calculated based on an hour of use of 5,500 hours. In this case, a 1 million kilowatt thermal power plant uses approximately 1.5 to 1.8 million tons of standard coal per year. Standard coal refers to coal with a low calorific value of 7,000 kcal/kg.
We can only give here an approximate rangeximative of coal consumption, because the electricity production unitThere is a big difference in efficiency. If it is an ultra-supercritical unit, it will consume less coal, while a subcritical unit will consume more coal.
What is the concept of boiler tonnage? For example, what does a 4 ton boiler mean?
Zhoushan, Zhejiang.
Tidal energy has the advantages of huge reserves, clean and pollution-free, and does not occupy land. Its production units can withstand magnitude 16 typhoons and 4 meter waves. is known as the "blue oil field", is an ideal renewable energy source.
LHD Lindong Large-Scale Tidal Power Station, located on Xiushan Island, Zhoushan, is the world's first ocean tidal power station and the world's longest tidal power generation project which has been permanently connectedence to the electricity grid and has been operating for the longest time.
The “Endeavor” unit put into the sea this time is the fourth-generation single-megawatt unit of the LHD Lindong tidal power station. The unit has a total weight of 325 tonnes, a rated power of 1.6 megawatts and a planned annual power generation capacity of 2 million kilowatt hours. It is expected to reduce carbon dioxide emissions by 1,994 tonnes per year.
Principle of seawater tidal power plant:
The energy possessed by moving seawater becomes tidal energy. Tidal power generation involves building a dam in a tidal bay or estuary to form a reservoir and placing a hydroelectric generator in or adjacent to the dam. It uses the rise and fall of sea water level as the tide rises and falls. drive the water wheel when sea water passes through the turbiborn. Generators produce electricity.
Due to the force of the tides, sea water continually rises and falls. When the tide rises, a large amount of sea water surges forward, with large kinetic energy, at the same time, the water level gradually rises, and the kinetic energy is converted into potential energy; At low tide, sea water recedes, the water level gradually drops, and potential energy is converted into kinetic energy. The kinetic energy and potential energy possessed by moving seawater are collectively called tidal energy.
One of the important applications of tidal energy is electricity generation. From an energy point of view, it uses the potential energy and kinetic energy of seawater to convert it into electrical energy using a hydroelectric generator. The advantage of tidal power generation is its lowcost. The cost of a kilowatt hour of electricity is only one eighth of that of a thermal power plant.
Reference for the above content: Popular News-Zhejiang Zhoushan: Start-up of the world's largest single-capacity tidal power generation unit
< Boiler tonnage refers to the rated hourly steam evaporation capacity, a 4 ton hot water boiler means the capacity of hot water supplied at the calibrated temperature is 4 tons per hour, this which means that the nominal evaporation capacity of the boiler is 4 tonnes.
The nominal power of hot water boilers is expressed in MW. A 0.7 MW hot water boiler is equivalent to a 1 ton steam boiler. The method of measuring hot water boilers is MW and the method of measuring steam boilers is tonnes, both of which represent the power of the boiler.
InformaDetailed instructions:
Precautions for using the boiler:
1. You should use boilers produced by regular manufacturers who have passed inspections. Check whether boilers are regularly inspected and water quality treated, and whether operators have certificates.
2. When the boiler is operating, the water level in the boiler is below the lowest visible edge of the water level meter. Although the water supply is continuously increased and other measures are taken, the water level continues to fall. the water level in the boiler exceeds the highest visible water level (full of water) and is not visible even after draining the water level if the water supply pump fails or if the water supply system fails, water cannot be delivered to the boiler; and if the water level gauge or safety valve fallsIf it fails, the boiler must be stopped immediately. Safety accessories must be validated in time.
3. During boiler operation, steam and water boiling, boiler overpressure, boiler tube explosion, any pressure gauge failure and other serious deformation and damage of boiler components, equipment damage combustion, collapse of the furnace wall or the boiler frame are burned red, etc. If the safe operation of the boiler is threatened, boiler operation must be stopped immediately.
4. It is strictly prohibited to use the normal pressure boiler in a closed state under pressure.