What does central heating mean?

Question 1: What do you mean by household heating, central heating and independent heating? Upstairs is basically nonsense. .....

Your home belongs to central heating.

Central heating means heating an area or a city through a heat source, that is, a power plant.

Your home belongs to parallel users who can control your home independently.

When you buy radiators, you can ask your heating company what the constraints are.

So as not to cause them to change the heating privately in the future, so as not to care whether the house is hot or not.

Question 2: What does independent heating mean? I guess you mean domestic heating.

central heating system

Heating in winter is essential for residential buildings in northern China, with central heating as the main method. The main body of heat source is heating company or residential boiler room. At present, most domestic heating systems use coal-fired, gas-fired and oil-fired boilers as heat sources and are connected to indoor systems through external or internal networks. There is also a central heating method, that is, central air conditioning system.

(2) Household heating.

The characteristic of household heating mode is that users can choose according to their own preferences, and the heat can also be measured separately. With the use of clean energy and the emergence of new technologies and new products, it is possible to choose a variety of heating methods, and the monopoly position of central heating methods is challenged. Independent household heating methods such as heating and hot water integration have appeared one after another. The commercial development of housing and the emergence of large-sized apartment, duplex, double-bathroom and multi-bathroom villas have further improved the requirements for domestic heating equipment and domestic hot water. The integration of home heating facilities and sanitary hot water is favored by more and more real estate developers. However, generally speaking, it costs more for each household to keep warm. Some affordable housing projects in Beijing (such as Chaoyang New Town) are frozen or don't live here because tripods use household heating, which is too expensive to open the valve in winter.

Question 3: What are the benefits of central heating? Benefits of central heating:

1, the heating quality is high, and the heating is stable and uninterrupted, giving the room a comfortable environment.

2. The use of large heating boilers or the use of waste heat from thermal power plants greatly improves the thermal efficiency and saves energy.

3. Large heating plants have high requirements for environmental protection, which are cleaner than individual coal burning and reduce air pollution. Reduce carbon emissions and protect the environment. Especially now the smog is so serious.

4. Good quality and low price. Compared with personal heating costs, it is greatly reduced.

5. Floating is safe. Compared with small boilers or personal heating, accidents such as fire and gas poisoning are effectively avoided.

Central heating in cities and towns refers to the way that hot water or steam is used as heating medium and one or more heat sources provide heat energy to heat users in cities and towns or some areas through heating pipe network, which has become one of the important infrastructures in modern cities and towns.

Question 4: What's the difference between central heating and central heating? Central heating is only aimed at winter heating; However, the scope of central heating is larger, and besides heating, the heat used for domestic production is also within this range. For example, the hot water in residential buildings belongs to the scope of central heating, but it is not.

Question 5: The difference between central heating and household heating in a house. I think so. To put it bluntly, central heating is to connect the heating pipes in your building or the whole community, and then the main pipe is connected to municipal heating or self-built boiler room. Do you mean independent heating when you say household heating? That is, each household's own pipes are independent, and a wall-hung boiler or other heat source is used to heat their own houses. What you said about intelligent mode and non-intelligent mode is similar to your own guess. This incident can't help but remind people of the large-scale heat metering reform being carried out now. The intelligent mode should be to stop low-temperature heating when the user is not at home, and to heat at high temperature when he is at home, or to set the temperature and heating time by himself, so as to save energy and reduce consumption. The non-intelligent mode is probably a unified temperature and time plan, which has been used for heating without considering other factors, which is artificially uncontrollable.

Question 6: What is the difference between district central heating and municipal central heating? The district central heating you mentioned may be a private heating company! Municipal heating may be state-owned! Their charges should not be much different! The temperature is also implemented according to national standards! In the past, there were few private small heating companies. Nowadays, due to the development of the city, the heating in many communities can't keep up. Many businesses have seen this market and invested in small heating companies to provide heating for communities, shopping malls, residential buildings and supermarkets! In this regard, there is a special chain-the national chain of heating and central heating-which is a chain heating company! I hope it helps you!

Question 7: What is the difference between municipal heating and district central heating? One is * * * heating and the other is property heating. There is no difference.

Question 8: What is the central heating standard? Central heating refers to the way that hot water or steam is used as the heating medium, and one or more heat sources provide heat energy to heat users in cities, towns or some areas through the heating pipe network.

At present, it has become one of the important infrastructures in modern towns and an important part of urban public utilities.

Central heating system includes heat source, heating network and users. The heat sources are mainly thermal power stations and regional boiler rooms (steam boilers are generally used in industrial boiler rooms and hot water boilers are generally used in civil boiler rooms), and the fuels are coal, heavy oil or natural gas; Garbage is widely used as fuel in some countries. Industrial waste heat and geothermal energy can also be used as heat sources. The advantage of nuclear heating is to save a lot of fossil fuels and reduce transportation pressure. Heating pipe network is divided into hot water pipe network and steam pipe network, which is composed of heating trunk line, heating trunk line and branch line. Its layout is mainly determined according to urban heat load distribution, block conditions, development planning, topography and geology, etc., and it is generally arranged in branches and laid underground. It is mainly used for heating, ventilation, air conditioning and hot water supply in industrial and civil buildings, as well as heating, drying, cooking, cleaning, melting, refrigeration, steam hammer and steam pump in the production process.

You can consult the literature about the concept of cogeneration.

The advantages of central heating are: ① improving energy utilization rate and saving energy. The comprehensive thermal efficiency of cogeneration of heating units can reach 85%, while the thermal efficiency of large steam turbines generally does not exceed 40%; The thermal efficiency of large heating boilers in regional boiler rooms can reach 80% ~ 90%, while the thermal efficiency of scattered small boilers is only 50% ~ 60%. (2) Conditionally install high chimneys and flue gas purification devices, so as to facilitate smoke and dust removal, reduce air pollution, improve environmental sanitation, and realize the utilization of low-quality fuel and garbage. (3) A large number of scattered small boiler rooms and fuel and ash stacking areas can be vacated for greening and improving the city appearance. (4) Reduce the transportation and scattering of firefighters, fuel and ash, reduce operating costs and improve environmental sanitation. ⑤ It is easy to realize scientific management and improve heating quality. Realizing central heating is the infrastructure of urban energy construction, an important symbol of urban modernization and an important measure for rational distribution and utilization of national energy.

Question 9: What does big heat heating mean? Central heating is called great heat by the public.

Question 10: Central heating and floor heating. I have been engaged in heating for a long time. Let me answer your question.

If it is the heat source of central heating, it is no problem to change the floor heating, because the heating range provided by the heating company is very wide, and it is generally heated by the secondary water after heat exchange. The temperature is basically above 60 degrees, and floor heating is a low-temperature heating system. High temperature water will seriously affect the service life of floor heating pipes.

The construction of floor heating is very simple, and you need to consider its feasibility when there is no problem with the heat source. For example, the specific situation of your home, the thickness of the ground, the floor and so on. Generally, it is not recommended for users of central heating to modify local heating. Although the heat dissipation effect is good and the space is saved, the pressure is not high because the underground length of the pipeline becomes longer and the frequency of secondary pumps in heat exchange stations in various districts of central heating is generally low. If there is no micro circulating pump, it is likely to circulate without storage, that is, the temperature is uneven, the near-end room temperature of the pipeline is high, and the far-end temperature is low. Neighbors downstairs will also be affected, which is a potential contradiction and dispute factor.

Regarding the equipment, the floor heating pipe is firstly PE pipe, followed by PPR pipe. Never use aluminum-plastic composite pipe. In many cities, the use of aluminum-plastic pipes is no longer allowed. Under certain conditions, aluminum-plastic pipes will become brittle and have great hidden dangers. In addition to the floor heating pipe, you need a water separator. There are also thermal insulation materials, benzene board, flannel, reflective thermal insulation film and so on. Especially the reflective heat insulation film, without this, you can imagine what kind of mood it would be if the neighbors downstairs found a "ceiling" radiator on their heads. In addition, if the circulation is not smooth, a circulating pump may be needed. Recommended to import, domestic noise and energy consumption are too high.

It is strongly recommended not to cover concrete on the floor heating pipeline during construction. If something goes wrong, you can only use a pickaxe to plane it. Don't say that there is no problem if you do it well. In this respect, we have received a lot of maintenance. 1/4 and 1/6 iron pipes can be broken, not to mention PE and PPR.

As a reminder, it must be pressed after construction to see if there is any leakage. The so-called suppression means that the tap water is connected to the pipeline you just connected. After the pressure reaches a certain level (I don't know the head and frequency of the circulating pump in your floor heat exchange station, so I can't calculate the pressure in MPA), does the pressure in the pipeline change obviously in a week or so? If yes, carefully check the leakage point. Eliminate hidden dangers.

According to the law, the pipes in households' homes are owned by the state. Residents' unauthorized replacement of heat exchangers or pipes is not allowed by the local heating department, and the losses caused are borne by the residents themselves. If the heating system is affected, it should be removed immediately. Be careful when you do geothermal energy. Everything that goes wrong is your own fault.