How does the heating work?

Heating can be divided into water heating and air heating. Usually radiator refers to water heating, that is, circulating water is heated by wall-hung boiler or boiler, and then linked to radiator through pipeline. Finally, the appropriate temperature is output through the radiator to form the indoor temperature difference, and finally, the whole indoor temperature is evenly increased through thermal circulation.

Warm air is hot air. As soon as the cold air comes in, it is heated into hot air by the radiator. Hot air rises and forms convection with indoor cold air. Cold air circulates near the heater and is heated into hot air. Hot air circulates in the house and the room is warm.

The heat dissipation steps are mainly divided into three parts:

1, the heat medium in central heating transfers heat to the inner wall surface of radiator through convection heat exchange (heat release coefficient of inner surface);

2. The inner wall of the heater transfers heat to the outer wall through heat conduction;

3. The outer wall of the heater transfers most of the heat to the air through convection heat exchange, and a small part of the heat is transferred to indoor objects and people through radiation.

Extended data:

Do not pile up sundries on or around the radiator;

Try to keep a certain heat dissipation space near the indoor radiator. Don't pile up sundries on or around the radiator, otherwise it will affect the heat dissipation effect of the radiator.

Don't use hot water privately;

In order to remove minerals and prevent scaling, chemicals, including scale inhibitors, will be added to the hot water. These chemicals can not be used to wash clothes at all, which will pose a health threat if children drink them by mistake. In addition, unauthorized water discharge will destroy the stability of heating system and bring trouble to maintenance.

Don't spread wet clothes directly on the radiator;

Many people will put wet clothes on the radiator to dry, which will create an environment for the growth of mold spores, such as Aspergillus fumigatus, which will cause diseases related to Aspergillus sensitization.

Don't heat food with heating;

Milk and soybean milk can not be heated on the radiator for a long time, which is easy to deteriorate and lose nutrients after a long time. Roasting frozen meat on heating will make the meat cold inside and hot outside, which is easy to breed bacteria and affect food safety.

Baidu encyclopedia-heating

People's Health Network-Stay away from the "heating disease" after heating.