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Suggestions for deep peak shaving and temperature regulation
Release Time:
2022-03-07
During deep peak shaving, the load often decreases, and the amount of fuel also decreases. Therefore, the temperature of the gas may also decrease, especially in the interior of the boiler, where there may be a transition from the original dry state to the wet state, leading to overheating or insufficient steam temperature, resulting in water shock in the steam turbine. Therefore, during deep peak shaving, it is often necessary to adjust the temperature. During the operation of deep peak shaving exploration, it is necessary to adjust the ratio of water to coal, so as to strengthen the monitoring of overheating at the outlet of the separator, so as to ensure a degree of superheat greater than 5 ℃.
During deep peak shaving, the load often decreases, and the amount of fuel also decreases. Therefore, the temperature of the gas may also decrease, especially in the interior of the boiler, where there may be a transition from the original dry state to the wet state, leading to overheating or insufficient steam temperature, resulting in water shock in the steam turbine. Therefore, during deep peak shaving, it is often necessary to adjust the temperature. During the operation of deep peak shaving exploration, it is necessary to adjust the ratio of water to coal, so as to strengthen the monitoring of overheating at the outlet of the separator, so as to ensure a degree of superheat greater than 5 ℃.
During the process of deep peak shaving, if the load of the substrate is at a critical state between the lost state and the dry state, but due to the limited time for peak shaving, it is possible to stop the operation of the basic vacuum pump, open the overflow valve of the water storage tank, or open a bypass to reduce the electrical load of the unit, to ensure that the unit is light and can achieve peak shaving. Although using this method will temporarily sacrifice some economy, it has more economic value compared to tedious and decentralized operations such as transferring water supply and wet state, which are relatively risky.
Due to the uneven load in the process of power consumption, during power consumption, if there is a peak, the power grid tends to be in an overloaded state. At this time, if generating units other than normal operation are put into operation to meet people's needs, this type of generator is known as peak shaving units, which are often used to regulate peak power consumption, so it has been called peak shaving units. The peak shaving unit is required to be able to start and stop quickly, and also be able to make synchronous adjustment. At present, the peak shaving unit includes gas turbine and pumped storage machine.
Because electric energy cannot be stored in large quantities, the generation and use of electric energy are often unified. Therefore, the amount of electricity that needs to be quantified depends on the amount of electricity that needs to be generated simultaneously. Therefore, changes in the electrical load in the power system are very frequent. This can maintain a balance of active power to ensure the frequency stability of the system, which requires the use of certain means to change the output of the generator to adapt to changes in electrical load, which is called peak shaving.
Since it is relatively simple to start using a hydro generator, it is currently a widely used method for hydropower peak regulation. In addition, it can also use the water harvesting and storage unit to regulate the peak during the peak period when the pump is in the low valley state. In other words, when the load is at a low ebb state, the water pump is actually a water and electricity consuming device that can convert electrical energy into water potential energy for storage. Once the power consumption reaches the peak period, this part of potential energy will be converted into electrical energy and put into the grid.
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We specialize in the research and development and production of clean heating products such as solid electric energy storage heating devices, high-voltage electrode boilers, air waste heat recovery machines, electric coal substitutes, wind power heating, and peak shaving.
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