As the end of the year approaches, "Is it cold in the Arctic or colder in my city?" has become a frequent topic among young people. When the cold wind is biting, there is always a topic that will return to the hot search, and the frequency is comparable to "is the tofu brain sweet or salty":Heating——Something that makes northerners cry out happy and makes southerners feel complicated.
Source: Picture Worm Creative.
Because of the heating, it is no longer cold indoors in the north, but friends in the south hide in thick pajamas, electric heaters, foot warmers, baking mechanical and electrical blankets every day, ......next to him, shivering. The joys and sorrows of the north and the south are not the same. The northerners looked at this article at this time and showed a "full of detached" smile, secretly thinking to themselves, "You can't imagine the happiness of heating". And southerners can only cry at the screen: it's almost 2024,Why is there no central heating in the south?
The heating in the north is too rareHow cool is it to have heating?It's not clear if people are addicted or not, anyway, the cats raised at home are addicted.
Look at this look, isn't it me next to the radiator?Source: Weibo @喜mai洗pulse Generally speaking, most areas in the north can enjoy the happiness of heating before mid-November. And the three northeastern provinces further north even began central heating in October, after all, some places have already begun to snow in October. For northerners, the coldest season of the year is not the midwinter wax moon, but the month before the heating is provided, and the month after the heating is stopped.
Source: bilibili comment area"When it is warm and cold, it is the most difficult to rest", this point has been realized by Li Qingzhao, a native of Jinan more than 1,000 years ago. And the gurgling sound of the radiator testing the water is the dawn of hope for northerners.
The weather is often close to minus twenty or thirty degrees, and when I return indoors with a cold snot, I immediately take off my coat and roast my hands on the heater, which is comparable to becoming a fairy. And in winter, grabbing the right to use radiators is often a must for young people.
During the postgraduate entrance examination, students from a university in Zhengzhou occupied the radiator one after another Source: Pear** supported a small Mazha and endorsed in front of the radiator, and the quality of the Xi immediately increased by more than one dimension. Of course, in addition to heating, there are more advanced usages. Plain northerners are often well versed in the principle of multi-purpose, and use radiators as natural microwave ovens
The fruit is too cold, warm up;The fresh milk is too cold, and it is hot;After washing the clothes, bake them.
Everything can be baked, nothing can't be done, only the unexpected. Even, baking a radiator when something is frozen has become a Xi of northerners. Including the campus card "frozen" ......
Pass on the "universal heating" Source: Weibo For northerners, baking is actually a basic operation, and there are more advanced usages, such as,Humidifier. As the oldest humidification method, northerners are still Xi to take a basin of water next to the radiator and use the method of heating and evaporation to humidify the room.
Source: Weibo If there is a hot water pipe of the right thickness next to the radiator, it can still be ......Perm, or, DIY perm bangs.
You can also perm large waves, which is not more effective than a curling iron
Of course, I still want to remind everyone here: pay attention to safety and practice cautiously. After all, radiators also have their own drawbacks, although happy, but also bring a lot of troubles to northerners, the most important thing is:It's too hot. Indoors in winter, most northerners wear vests and pants, and even so, they will feel hot and dry.
There's no way, either eat some ice cream, or sigh with emotion:I really want to give the heating from the north to the south to express it.
Speaking of which, friends in the north often can't help but turn their heads to look at their friends in the south:Yo, you're still sitting here frozen?
And the southern friends can't help but roar in their hearts:I hate-It's also cold in the southWhy is there no heating?Although geography textbooks say that the southern region, which is the most climatic region, has "warm and humid winters". But it can only be said that this is "two different things" from the actual body temperature. Generally speaking, when the temperature is below 8, the human body will feel coldIn most southern regions, the winter temperature will be below 8. Add to this humidity – meteorology generally believes that for every 10% increase in humidity, the perceived temperature decreases1. Therefore, there has been a saying circulating on the Internet: unlike the north, the cold in the north is a biting low temperature that directly causes physical damage, but the cold in the south is magic damage.
Source: Weibo comment area Admittedly, which is colder up and down -20 -30 or 0, the answer is self-evident. But in the south, without heating,People are even more willing to stay outdoors than to stay indoors in a down jacket.
Ask if you really feel aggrieved that the weather is humid in the first place, and the indoor is relatively closed, so it is more humid, which makes the body feel colder.
In winter, even the penguins in the Chengdu Penguin Pavilion rely on electric heaters for heating, not just talking.
Source: Weibo @ Student Propaganda Ambassador Every winter, the southerners are constantly calling for heating, but why is there no heating in the south?In fact, there are both historical reasons and practical difficulties in this. Strictly speaking, the history of central heating in our country is not long. After the founding of the People's Republic of China, following the Soviet model, the state began to demarcate heating zones, stipulating"In areas where the average daily temperature is stable for less than 90 days with a stable daily temperature of less than or equal to 5, heating facilities should be set up, and central heating should be used". In the 50s, our country began to divide heating zones according to more detailed geographical boundaries, which is what we often say"Qinling-Huaihe line".。To the north of this line, central heating is available, while to the south is "not so lucky". At that time, all walks of life were in ruins, and agricultural production and infrastructure construction became the focus, so the division of this line was more for the reference of crop types and architectural styles.
The Qinling-Huaihe line coincides with the 4500 accumulated temperature line, the 0 isotherm line, and the 800 mm isoprecipitation line, which can provide a better reference for agricultural production Source: China National Geographic.
At the same time, concentrating superior resources to ensure heating in the north was also in line with the economic development situation at that time. In 1957, the Soviet-aided Beijing No. 1 Thermal Power Plant was put into use, which opened the prelude to the country's central heating. At that time, the northern cities were building thermal power plants, laying pipelines, and building buildings at the same time. Today, most of the northern cities have a complete set of pipe access systems, and most of the new buildings are automatically followed up with supporting facilities, so the heating cost is naturally relatively low.
In August 1958, Beijing Gas and Heating Company was established, and the heating management department was a heating team dedicated to the management of heat supply for the transportation of ingredients and the heating supply team, and in March 1960, the heat management office was established to be in charge of heating work. This is the first institution in China that specializes in the management of urban heating Source: China Urban Heating AssociationBut it is undoubtedly very difficult to achieve the same conditions in the south. If central heating is to be adopted, it means that most cities and most buildings in the south have to start laying pipes again and renovate the pipes to enter the house, which is very costly. Moreover, even with the ability to lay a central heating system, central heating in the south is very difficult.
Comparison of central heating area in the north and south Daily Economic News "Urban Evolution Theory".Let's talk about the basic principles of the operation of the heating systemThermal power plants or boiler rooms, which produce steam or high-temperature water by burning coal or gas. This heat energy heats the water in the primary pipe network, and then flows to the heat exchange stations in various places, where it is exchanged with the water in the secondary pipe network. When the water temperature is 50 or 60 degrees Celsius suitable for heating, the hot water is sent to the radiators or underfloor heating of each household.
This is how the "heating water" in Shen Teng's famous scene "Drink some heating water" came about The whole process of the 2022 CCTV Spring Festival Gala, in addition to infrastructure, at least three key elements need to be solved:Raw materials for combustion, efficiency of transportation, maintenance of pipelines. Let's talk about raw materials first, whether it is coal or natural gas, this part of the resources is mainly concentrated in the north of our country. The north accounts for about 80% of China's coal, and if it were to be transported to cities in the south on a large scale, the cost of that would be incalculable.
Distribution of China's coal resources China's National Geographic and the haze caused by coal burning in previous years has made it more difficult to dissipate in the humid environment of the south. Therefore, heating in the south not only needs to consider the tight energy supply, but also needs to deal with environmental problems in advance. There is also the aspect of transportation efficiency. Due to the dryness of the north, the energy loss in the process of pipeline transportation basically comes from thermal radiation, and the air itself will not cause much impact. In the south, the situation is different, to sum it simply: the air in the south is humid, and the heating has to heat not only the air, but also the water vapor in the air. However, the specific heat capacity of water is larger, and in order to achieve the same temperature, moist air needs to consume much more heat than dry air. In this way, the cost of heating in the south will increase a part compared with that in the north. At the same time, the thickness of the building walls in the south is generally thinner than that in the north, and more attention is paid to ventilation, and the insulation effect is poor. The heating was finally delivered indoors, but at first glance, it was likely to warm up and be lonely.
In addition to this, plumbing maintenance is also a big problem. The low temperature duration in the south is shorter than that in the north, and in the northeast, for example, it may take half a year to provide heating at one timeIn the south, heating may be needed for as little as two months, or even less.
The cold in the south is "boil it and it will pass", and the cold in the north is "boil it and it will really pass" The humid air in the south of the Weibo comment area is more likely to lead to rust and corrosion of pipelines, high repair and maintenance costs, and difficult operation. No matter how you look at it, it's obviously too cost-effective. In fact, since the 2008 freeze disaster in the south, the heating problem has been repeatedly put on the agenda. Especially in recent years, the call for heating in the south has become louder and louder, and some cities and universities are also piloting it.
A university in Nanjing began heating Source: Jimu**.
However, under various difficulties, the heating problem is still being improved and solved. So the question is: how do southerners who have no heating survive the winter?How do southerners survive the winter?Although there is no room for a unified operation of large-area central heating, it is not completely impossible. Small area central heating is a more commonly used heating method in the south. For example, for example, the "central heating" in Xiangjiang New Area in Changsha uses Xiangjiang water as energy to build a number of distributed energy stations to solve the problem of district heating. In addition, with the development of clean energy, heating in the south is gradually becoming more promising. In December last year, the nuclear energy heating demonstration project (phase I) of Qinshan Nuclear Power Plant of China National Nuclear Corporation was officially put into operation"In the long run, nuclear heating will be more affordable than burning fossil fuels. ”
Nearly 4,000 households in Haiyan County, Jiaxing, Zhejiang Province, have enjoyed the happiness of heating, and they can also feel the happiness of heating in the south, no longer just imagination Source: Jintai Information.
However, for now, this is only applicable to some newly developed properties. In the short term, those houses that do not have the same plumbing will still not be able to taste the taste of heating. In recent years, radiators are becoming a potential consumer stock. In 2019, the sales of household radiators increased by 430% year-on-year, and the "main force" of purchases is Shanghai, Nanjing, Wuhan and other southern cities.
In 2020, the growth volume will still be 300% In addition, after experiencing wind and rain all year round, southerners have already developed some winter artifacts to ensure a smooth winter - every winter, the people of Hubei will bring warm, comfortable, and easy to put on and take off "provincial shoes" to apply for battle.
Hunan next door is not to be outdone, and the cotton pajamas, known as the "provincial uniform" of Hunan Province, are almost one in everyone's hands.
Source: Weibo @三湘*** I thought it was ugly when I was a child, and now I can't wait to weld it to death. "Only when you wear it do you know what warmth is. ”
If you don't wear cotton pajamas, you can't call a southerner Douyin comment area matches provincial clothes and shoes, and the fire box is also a common artifact in many people's homes. Put your feet on the oven, cover the small quilt, and race the gods.
Although the fire cage is good, it is still necessary to pay attention to the power off of people, prevent covering combustibles, and use it correctly Source: Weibo @ Hunan Fire In addition to the above, some southern friends also gave the most trouble-free method: eat spicy.
Or simply "rely on a heroic righteousness."
However, for friends in the south, the combos on how to use heating tricks and be on the hot search can be Xi practiced now. At least as far as the current trend is concerned, the day when friends in the south like to heat up and defeat the "magic attack cold" in the south is not too far away.