It is said that it is cold in the north, but there is heating in the room, and when you return to the room, people can wear short sleeves to eat watermelon. It is said that the south is hot, but the indoor temperature in the south in winter is colder than the outdoor, and it is very inconvenient to wear thick clothes when entering the house, so that many people say: I want to go to the north for winter.
In the past for a long time, heating is the standard of the north, but also the envy of the south can not come to the welfare, the reason why the south does not have central heating, one is because the south winter time is short, cold is also cold for one or two months, heating companies can not recover the cost of investment; second, because many buildings in the south in the planning, there is no central heating this one, and as the city is more and more perfect, it is not convenient to transform for central heating.
But now it is different, china's south also has to have heating, China's first nuclear energy heating project - Zhejiang Haiyan nuclear energy heating demonstration project (phase I) in Zhejiang Haiyan officially put into operation, the first batch of heating area of 460,000 square meters, nearly 4,000 residents benefited.
So what's going on?
Affected by global warming, the glaciers in the polar regions continue to melt, extreme weather is increasing, in order to protect the global environment, China proposes:
"China will increase its nationally determined contribution, adopt more powerful policies and measures, strive to peak carbon dioxide emissions by 2030, and strive to achieve carbon neutrality by 2060."
In order to complete the "carbon neutrality" and "carbon peak", central heating in the south seems to be difficult, because traditional coal-fired heating must emit a lot of carbon dioxide, which is obviously not conducive to carbon neutrality.
However, Southern Heating has found a new way: nuclear heating, nuclear energy is clean energy, zero carbon, efficient, in the process of heating will not pollute the surrounding environment.
According to the relevant personnel of Zhejiang Haiyan Nuclear Energy Heating, after the project is fully completed and put into operation, it can save 196 million kWh of electric energy consumption per year, and compared with traditional coal-fired thermal power unit heating, nuclear energy heating can reduce the combustion of standard coal by about 24,600 tons per year, reduce carbon dioxide emissions by 59,000 tons per year, sulfur dioxide emissions by 1,817 tons, and carbon oxide emissions by 908 tons, which is equivalent to planting 3.3 million trees.
Nuclear energy heating is not only environmentally friendly, but also the price of heating is very economical, to know that in the past the main reason for restricting central heating in the south, that is, the duration of the southern winter is short, and the heating company is difficult to recover the cost, so it is rare to central heating, and the price of floor heating or air conditioning used by the family is not cheap.
Nuclear energy heating is relatively economical, taking a 100-square-meter house in Haiyan, Zhejiang Province, as an example, the heating cost per square meter is 30 yuan per heating season, and the total heating cost is about 3,000 yuan. It should be known that if the south adopts coal-fired thermal power unit heating, due to the large investment, but the heating cycle is short, the coal-fired thermal power unit will inevitably heat up by increasing the unit price, so if the south adopts coal-fired thermal power unit heating, the price will definitely be more than the nuclear heating highland.
Compared with traditional coal-fired heating, nuclear heating will make some people feel uneasy, worried about whether nuclear heating will have the risk of nuclear radiation, and some families with small children are more worried about whether nuclear heating will affect children.
In fact, we don't have to worry about this at all, nuclear energy heating is completed by 5 circuits: the heat of the first circuit, the water of the second circuit is heated by the steam generator, which will produce high temperature and high pressure steam, and then the steam of the second circuit will heat the water of the heat exchange station of the factory area, and the heated water will pass through the three-circuit pipeline, and then transmit to the heat exchange station of the heat company, and then heat the water in the fourth circuit and the five-circuit heating pipe network in turn, and then send it to the user's home.
Some netizens figuratively said that nuclear heating is to constantly "boil hot water". The whole process of nuclear heating is the step of steam heating water and water heating water, only the transfer of heat, there is no water exchange, and there will be no radioactive material entering the heating pipe. The hot water entering the homes of residents in the community has been isolated from the nuclear power plant layer by layer, without any contact, so the water in the homes of the residents of the community does not have nuclear radiation, whether there are elderly people or children at home, they can be used safely and with confidence. In fact, not only is the thermal energy in the user's home free of nuclear radiation, but the water with nuclear radiation material cannot flow out of the nuclear power plant, so the pipeline on the ground is also very safe.
For safety, there are also radiation detection devices for nuclear heating, and there is a pressure difference between the third and second circuits to ensure that nuclear radiation does not flow out of the power plant.
At present, more than 1/10 of the more than 400 nuclear reactors in the world have realized combined heat and power, the technical route of nuclear energy heating has been very mature, its safety has withstood the test, and nuclear heating may become the direction of central heating in the south in the future.
Finally, I still want to ask, when will central heating in the south be popularized? It's really cold!
#Haiyan##Zhejiang Haiyan three districts central heating ##Nuclear Energy Heating ##Nuclear Energy ##嘉兴核能供暖先例 #