Molten salt tower photothermal power station, as the name suggests, actually uses molten salt to generate photothermal power. Its main ingredients are potassium nitrate and sodium nitrite. The form of these salts is very stable and can be used between 290 degrees and 565 degrees.
Maintain a flowable molten state.
Relying on thousands or even tens of thousands of large mirrors (heliostats) around the heat collecting tower, the sun's rays are concentrated on the heat collecting tower to generate high temperatures, thereby heating the molten salt transported here to 565 degrees, and then it is compressed by the compression pump.
Transported to high temperature tanks for storage.
When power generation is needed, the compression pump will send the molten salt material stored in the high-temperature tank to the steam chamber, and then start to boil water. The boiling point of water is only one hundred degrees, so when it absorbs heat, it will produce
Steam drives the steam turbine to rotate, and the steam turbine is directly connected to the generator to generate electricity.
When the temperature of the molten salt used to boil water reaches about 290 degrees, the system will control the compressor to transport it to a low-temperature storage tank for storage, and then wait to be transported to the heat collecting tower again to collect heat.
In fact, to put it bluntly, it is to use thermal energy to boil water, and then push the turbine to rotate and drive the generator to generate electricity. Simply put, it is to boil water in a different way.
That's right, it means boiling water. Even the most advanced nuclear power plants are essentially boiling water. Not to mention the thermal power plants that currently supply half of the country's electricity, they are also boiling water.
There is also a geothermal power station that also boils water to generate electricity.
These four power stations all boil water, but the energy used is different. Thermal power stations mainly use coal, which is the main force of thermal power stations at present. In addition, there are also less oil and natural gas.
Only a small number of people use biofuels such as biogas to generate electricity. But no matter what, while thermal power stations provide electric energy, they also bring about very serious pollution problems.
Although the emission technology of thermal power plants has been improving, emissions still continue, even causing serious air pollution problems.
As for geothermal power stations, they actually use geothermal heat to generate electricity directly. To put it simply, a power station is built on some high-temperature hot springs, and the high-temperature hot water in the hot springs is directly pumped up to drive the turbine to rotate and drive the generator to generate electricity. This
It can be regarded as a kind of clean energy and does not require any consumption. However, the conditions are quite harsh and it requires suitable geothermal resources, so it is very rare.
Nuclear power plants, as the name suggests, use nuclear reactors to generate electricity. This is currently a relatively clean energy source and will also be the main energy source on the earth in the future. It should be said that this is the most efficient among the four types of water-burning power generation, and the power generation is also the largest, which is a lot.
.
However, the shortcoming is also very fatal, that is, there is a certain risk. Once a problem occurs, it will cause serious environmental pollution. For example, a nuclear power plant in Japan was damaged due to earthquakes and tsunamis, and eventually polluted most of the oceans on the earth.
The last step is the treatment of nuclear waste. At present, human technology is not able to carry out harmless treatment. It can only be carried out by deep burial. Drill a hole hundreds of meters and several kilometers deep and bury it underground, thereby reducing the impact on the nuclear waste.
Ground pollution.
Even this is still a very responsible and relatively safe method for many countries. There are also some rogue countries that, in order to reduce the cost of processing these nuclear wastes, actually sank directly to the bottom of the sea.
Who knows whether these nuclear waste tanks will be damaged due to seawater corrosion, submarine volcanic eruptions, pressure, etc., causing the waste to leak and pollute the ocean.
But people don't seem to care. After all, in the last century, they dropped dozens of these eggs into the ocean to fry fish. It is said that the Godzilla in comics and movies and TV series that is popular around the world is derived from these eggs.
Produced by the radiation variation produced.
I don’t know if reality will appear, who knows.
The molten salt tower solar thermal power station is a new clean energy power generation method. Usually people are accustomed to comparing it with photovoltaic power stations. After all, the two are very similar in appearance, both use solar energy, and whether it is photovoltaic panels or fixed light
The shapes of mirrors are actually similar, and they all use clean energy.
However, compared with photovoltaic power plants, which are more limited and rely entirely on the weather, so the power generation is unstable and unable to sustain output, the molten salt tower photothermal power plant can store heat through molten salt material.
, so its power output is very stable and is not subject to changes in day and night and weather changes. It is a very ideal, efficient, and low-cost clean energy source.
In fact, Wu Hao and the others have built several new super energy storage power stations at the base to store the electric energy generated by these photovoltaic power stations for reasonable deployment and use. However, such super energy storage power stations are expensive to build and have high operating costs.
It is also relatively high.
The overall construction and operating costs of molten salt tower solar thermal power stations are relatively low, so they are very suitable for large-scale use.
Of course, this molten salt tower type solar thermal power station also has some shortcomings or controversies. That is, it will produce light pollution. Thousands of meters or even tens of thousands of mirrors concentrated on the heat collecting tower will produce a brighter than the sun.
There are so many bright spots. These bright spots can be seen clearly for dozens or hundreds of kilometers, and are even a little dazzling. It is even said that they can be seen on the space station.
In addition, the entire molten salt tower solar thermal power station occupies a huge area. The light concentrated by these mirrors is very hot, which will directly burn or even scorch the birds passing by. Therefore, there will be dangers around the molten salt tower solar thermal power station.
Many dead birds appeared, so it was criticized by many environmentalists.
However, this place stretches out next to the desert, there are relatively few birds, and the natural impact is relatively small.
In addition, in order to prevent birds from approaching, a low-frequency generator will be installed in the molten salt tower photothermal power station. This low-frequency sound cannot be heard by humans, but birds are very sensitive to it. With this low-frequency generator
If the device is used, the birds will not take the initiative to approach.
This low-frequency generator is a gadget they have come up with, and it has been installed at the airport. After all, the airport is also a place that is very afraid of birds, so in order to protect the safety of the aircraft and the birds, the technical staff
Such low frequency generators are also installed in airports.
At present, this technology and related products have been tried out in dozens of domestic civil and military airports, and have achieved very good results. After obtaining relevant permissions from the civil aviation management department, they will be promoted and expanded to other airports for use.
In addition to airports, this low-frequency generator can also be used in other areas, such as buildings, to prevent birds from settling in and thus maintain the appearance of the building's facade. The facades of many buildings are built because of birds' habitation.
, thus producing a large number of birds, polluting the surface, and also causing health and disease problems.