Why is there heating in the north and not in the south?

Because the weather in the north is cold for a long time and the temperature is low, you can't live normally without heating. In the south, the temperature is always above zero in winter, and the temperature is only below zero for about a week every winter, so there is no need for heating.

The northern winter lasts for three or four months. Although there are cold times in the south, it is almost only for more than a month.

It is not worth it for more than a month a year to assume that the pipes are built by the heating company.

Because it is colder in the north, it is generally heated. The weather in the south is warm, and heating is generally not needed. The climate in the north is particularly cold.

Because in the north, the temperature is above minus 10 degrees in winter, and it is too cold to use heating to heat it, while the south is warm all year round and there is no need for heating at all.

There are several reasons why there is no heating in the south:

1. The winter time in the south is short

Due to the large difference in climate between the north and the south, and the early winter, longer winter, and colder climate in the north, the heating period in the north is generally more than 4 months, or even as long as half a year. The south is relatively late in winter, the summer time is relatively poor, if the central heating in the south, the heating equipment is used for a relatively short time, the maintenance of the required funds is relatively large, the value is relatively small. This makes it difficult to show its true technology, and it will be beaten into the cold for a long time.

2. Insufficient funds and no need

The weather in the south is relatively humid, in the rainy season, in order to better ventilation, we need to sacrifice part of the insulation performance in the construction of the city, then the indoor heat is easy to lose, even if the south provides heating, it is difficult to maintain a warm feeling indoors. And the establishment of the heating system, it is necessary to build many thermal power plants and boiler rooms, and to dig up the ground to lay the heat transmission website, which requires a lot of investment in capital and manpower and material resources.

3. Too wasteful

You must know that the establishment of the heating system requires a lot of money, and the heating time in the south is only two months at most, while the heating time in the north is generally 3-4 months, so it is not cost-effective to spend a lot of money to get heating equipment. Moreover, the heating fee paid by the north is fully sufficient for the people in the south to turn on air conditioning to keep warm.

In addition, a lot of coal and natural gas in the south are transported from the north, which requires increased costs, so it is far less cost-effective to use air conditioning to keep warm.

4. The heating efficiency is not high

Compared with the northern region, there are more rivers and seas in the south, and the people in the south have the habit of opening windows for ventilation when they live, if the windows are opened for ventilation, the indoor heat will be lost while heating, and it is difficult to achieve good heating efficiency.

5. The structure of the house in the south is also not suitable for heating

In the northern houses, the walls are like sandwich biscuits, and the windows and doors are tightly repaired, all to keep warm. In the south, in order to keep out the moisture as much as possible, houses cannot be built as airtight as in the north. So, even if the heat goes down the heating pipe to your home, they can't stay and it's hard to keep it warm.

1. Humid climate is not suitable.

The climate in the south is relatively humid, especially in winter, it often rains, if the heating equipment is repaired to the south, it will rot in the humid climate for a long time, and it will cost a lot to repair. The climate in the south is relatively humid in all seasons, and this equipment is built there, and the service life will not be long.

2. Low efficiency.

The northern region will enter winter to November at the latest, and the south, at least until mid-December, the south is much later than the north, and in the spring, the south also warms up faster, so the cold duration is relatively short, which has spent a lot of money to build the heating equipment, just opened not long ago, it will be closed, and more than a year is idle.

3. Advocate adapting measures to local conditions.

According to the characteristics of hot summer and cold winter, it is recommended to adopt decentralized and local heating methods according to local conditions; At the same time, improve the winter insulation performance of the building. Encourage the use of renewable energy for heating. It is not advisable to build large-scale central heating heat sources and municipal heating pipe network facilities for building central heating.

The main heating methods in China are central heating and decentralized heating. The theoretical efficiency of central heating energy utilization is high, and it is suitable for continuous heating in the whole space during the long cold period, but there are also problems such as large project construction scale, long cycle, high one-time investment, difficult heat supply adjustment, serious air pollution, and inability to mobilize energy saving.

Decentralized heating has the characteristics of small construction scale, short cycle, flexible and convenient operation and management, and easy measurement. However, if coal is used, the heat source efficiency is low, the pollutant control is difficult, and the scope of application is limited by the influence of region, resources, environment, building type and living habits, but if electric heating and renewable energy are used, it is completely different.

The hot summer and cold winter areas involve parts of 14 provinces (municipalities directly under the central government), with a residential construction area of about 3.4 billion square meters and a population of about 100 million people, the winter is humid and cold, and when the outdoor temperature is lower than 5, people's discomfort is greater than the cold and cold areas of the same outdoor temperature, therefore, it is necessary to set up heating facilities in these areas for winter heating.

There are several reasons why there is no heating in the south:

1.The use of central heating in the south is not very efficient.

The number of days of central heating in the north will reach half a year, and there will be general.

Three or four months, but there are more warm weather in the south and shorter winters.

2.Southern cities have not considered the heating system in the construction process, and the investment in heating infrastructure construction is too large.

3.Due to the humid climate characteristics in the south, the buildings in the south are better ventilated and less insulated. Buildings are well ventilated and poorly insulated, making it easy for indoor temperature to be lost.

In humid climates, if central heating is used, the heat loss along the way of transporting the heat medium in the long-distance pipe network is very large, even if there are insulation measures.

As a result, there is no heating in the south.

1. Heating heat loss is related to four factors:

1.Outside temperature.

The lower the outside temperature, the greater the temperature difference from the body surface, and the faster the heat is lost.

2.Humidity.

Moist air has a greater thermal conductivity than dry air, and air humidity accelerates heat loss.

3.Wind velocity.

Wind speed strengthens heat convection and accelerates heat loss.

4.Ambient object temperature.

The temperature of the surrounding objects determines the speed of heat radiation heat dissipation between the human body and the surrounding objects.

Second, the impact of high air humidity on heating:

1.The higher the humidity, the better the thermal conductivity of the air. The thermal conductivity of still air is , the thermal conductivity of water is , the air at the same temperature, the greater the humidity, the more water vapor dissolved in the air, and the better the thermal conductivity.

2.The higher the humidity, the greater the heat capacity of the air. Heat capacity refers to the amount of heat that a substance needs to absorb to heat up. The specific heat capacity of water is the content of junior high school physics, and the air in a room rises from 5 to 10 degrees, and the higher the humidity, the more heat the air needs.

1. Due to the humid climate characteristics in the south, the buildings in the south have better ventilation and poor thermal insulation, which makes the indoor temperature easy to lose, and it is not suitable to install heating under such building characteristics.

2. The winter time in the south is short, and the equipment utilization rate is low.

This is because the temperature in the south is higher than that in the north, it is not too cold and the cold time is short, and the installation of heating is of little use, so it is meaningless.

Hello! Because the climate in the south is relatively hot, there is no need for heating, and generally there is no need for heating when crossing the Yellow River, and now air conditioners are installed at home.

Because the temperature in the south is relatively high in winter, air conditioning is generally used for heating, but in recent years, many places in the south have also adopted centralized gas supply.

Because the south is not as cold as the north, the temperature in winter is generally around freezing, so there is no need to use heating.

Because the south is like spring all year round, there is no need for heating.

There is a huge difference in heating between the north and the south, and there are three reasons why there is no heating in the south1. EfficiencyAt present, most of the boiler central heating used in China is simply water heating

This means that there is a need for a long and complex system of pipes to transport the hot water, and it is important to insulate these pipesHowever, the climate in the south is humid, and the moist water vapor has a high specific heat capacity, which leads to the hot water in the pipe quickly interacting with heat, and the hot water is basically warm water to your homeThe air in the north is dry, easy to keep warm, and there is little heat exchange, so the southern partners use other methods (air conditioning, electric stoves, etc.) to heat much more efficiently

Second, the structure of the houseThe structure of houses in the north is very different from that in the south, in order to keep warm and keep out the cold, the "sandwich" is mostly used"The walls are insulated, and the windows in the north are also smaller, which are easy to keep warmIn the south, due to humidity, good ventilation and sunlight are preferred, so the walls are more breathable and the windows are larger, which is convenient for ventilation and lighting

2014-12-31 · There is not much water shortage in the south, so why is there no heating? Followers 26 Viewed 80,223 Follow Issues Write Invite Good Questions Add Comment Share 13 Default Sort Li San Everything is calculable 85 people upvoted the ...

Why is there no heating in the South, country.

Since the cities in the south have not considered the heating system in the construction process, the infrastructure for heating is almost non-existentIf central heating is to be made in the future, it will be unbearable in terms of infrastructure construction investment, and everyone will not be able to bear it. In addition to the need for a thermal power plant, many boiler rooms had to be built, the ground had to be dug up to lay the heat transmission website, and there must be inside the building.

But now the southern architecture has not taken this into account, if it is redesigned, it will have to be re-erected on the wall, this toss will take decades, no one can stand it, and it will choke people enough. And the structure of the houses in the south is not suitable for heating. Due to the humid climate in the south, the buildings in the south are designed with more consideration for the influence of humidity.

How it worksHow it works

Heating is divided into water heating and air heating, usually what we call radiator refers to water heating, that is, the use of wall-hung furnace or boiler to heat circulating water, and then through the pipe link to the radiator, and finally through the radiator will be the appropriate temperature output, forming an indoor temperature difference, and finally the thermal cycle to make the entire indoor temperature rise uniformly.

The air heating is to heat the air, as soon as the cold air comes in, it is heated into hot air by the radiator, the hot air rises and forms a convection with the cold air of the house, and the cold air circulates to the vicinity of the heating to be heated into hot air, and the hot air circulates in the house, and the room is warm.

First of all, the temperature in the north and south is different, especially in winter, the temperature difference between the north and the south is very large, and the temperature is usually very different during the day and at night.

For example, in the Heilongjiang region, in winter, it is minus 9 degrees during the day and minus 20 degrees at night. During the day, people's bodies can accept this temperature, but at night, if there is no heating, ordinary people can't stand it, even more quilts can't stand it. So everyone, every family can't stand it, they need a large area of heating, and large-scale air-conditioning heating must be very costly, so pipe heating is used.

Shanghai, winter, zero degrees during the day, minus 4 degrees at night, this temperature is acceptable to ordinary people, that is, sleep at night, indoors and suffer, of course, there are people who want to be warmer, just use air conditioning.

Therefore, when it is particularly cold in the north, when a large area needs to be heated, ducted heating is used. The relative temperature in the south is relatively high, and there is no need for large-scale adoption.

Because the southern location is near the red degree, the climate is relatively warm, and the reason for the cold air in the south is the influence of the cold air in the north, which gradually weakens in the process of blowing to the south, so it is not as cold as the north!

The temperature in the south is mostly above 0 degrees, which does not affect daily life, and heating can be done by other means. In the north, it is mostly below 0 degrees, and it is very cold in some places.

The temperature is high in the south, and the cold weather is not as cold as in the north.

Actually, the temperatures are about the same, but it's windy in the north in winter.

When the south is cold enough to install heating, it will naturally be installed

The heating in the north is central heating, in order to improve energy efficiency.

And there are also heating equipment in the south, but they are used separately.

The weather in the south is not as cold as in the north. So there is no need for it.

Because the north is dry and cold, and it is also colder than the south. The south is slightly better!

Because the temperature in the south is high and the air is humid.

The reason for the "north-south difference" in heating is mainly due to the heating demarcation of the Huaihe River in the Qinling Mountains formulated at the beginning of liberation. However, at that time, the line was drawn up on the basis of the level of economic development, not the actual need.

The division of heating regions in China is mainly based on the average temperature of the coldest month and the hottest month in the year, and the number of days with the average daily temperature of 5 and 25 as auxiliary indicators, which are divided into five regions: severe cold, cold, hot in summer and cold in winter, warm in summer and warm in winter.

At present, the main area that has attracted much attention is "hot in summer and cold in winter", the climate is characterized by very hot summer, wet and cold winter, high air humidity, when the outdoor temperature is below 5, if there are no heating facilities, the indoor temperature is low, and the comfort is poor.