How does the gas in the heating come from? How does heating work?

As the heating circulating pump continues to supply water to the pipeline, the gas is gradually compressed due to the water pressure, and the gas is trapped at the end of the heating, and of course the heating end will not be generatedThermal radiationIn the process of gradual compression, the terminal air pressure is greater than the primary water supply pressure, which will produce a cyclone return force, and there may be gas in the process of hot water system operation. These gases will gradually enter the network as the hot water runs. If there is gas in the heating pipe network, it will seriously affect the hot water circulation.

Therefore, for heating, it is generally necessary to deflate.

<> heater is divided into underfloor heating and radiators.

There are two heating methods, underfloor heating is through the circulation of heat dissipation through the pipes, if there is air in the pipes, water through the pipes.

flowing, and the air in the tube will be slowly discharged. Although the air in the radiator can be discharged slowly, because there is space in the radiator, and too much air exists in the heating pipe, it will cause the heating to not circulate normally and affect the heating. Therefore, in order to quickly achieve the heating effect in the early stage of heating, special degassing operations will be carried out.

Then the problem is, the air in the heating, if we don't specifically deflate, <>

And why is there gas not hot, one is the thermal conductivity of the gas itself.

It is much lower than the thermal conductivity of water, and the thermal conductivity is poor. The second is that after the gas is collected, gas resistance will be formed, and the water will not circulate in this position, and it will definitely not be hot. Engaged in the HVAC industry for more than 10 years, I think that it is difficult for the heating to disappear automatically if it is not deflated, and it can only play a counter-role in the heating system and affect the heating.

Regarding the gas in heating water, let me talk about it based on my work experience.

Manifolds. In the heating pipe equipment, some air will accumulate at the top of these equipment, or in the pipes, too much air accumulation will form an air blockage, resulting in fluid isolation, resulting in heating is not hot, heat dissipation is not good, or circulation is blocked. In addition, there is a large amount of air in the heating duct equipment, and the location of the heating furnace is relatively low.

The farthest radiator was at the highest level, and there was no automatic exhaust valve installed.

This creates a slope. When adding water, you need to loosen the small screws on the radiator to fill up the water.

General heating is divided into water heating and air heating, we generally use water heating at home, the gas in the heating is generally because of the long-term hot water circulation work leads to the evaporation of the gas produced by the water, to be discharged regularly, otherwise it will affect the temperature release, the working principle of heating is to achieve heating through continuous hot water circulation and then, the hot water temperature is released.

The gas in the heating is formed by the evaporation of hot water, and the working principle of heating is to circulate hot water, cold water from this side, and then from that side, so as to achieve a circular effect.

Heating is equivalent to a kettle, it is to heat the water in the pipe, and then transport it to the radiator, so that the indoor temperature rises, forming an indoor temperature difference for thermal circulation, so that the temperature of the whole room rises uniformly.

The water in the heating system separates the air during the heating process. The wall-hung boiler is used to heat the circulating water, and the appropriate temperature is output through the radiator, and the heat is circulated to make the indoor temperature rise evenly.

The air in the pipe is exhausted and re-generated.

Same as a heat sink.

The heater is a heating element, and his task is to warm the room, like boiling water in a kettle. The difference is that the kettle is a closed container relative to the water, and the room is not closed relative to the air.

Think about it, if you pour cold water into the pot while boiling it, the water will never boil, and all the heat of the fire will be absorbed by the heating of the cold water. The same goes for heating the air in the house while heating. The cold air from outside keeps coming into the house, and the room will never be warm.

Heating works by heating the air, what if you avoid the above problems? It is to place the radiator in a window and a place where cold air can easily enter the house, such as a doorway. 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 current with the cold air in the house. The cold air circulates to the vicinity of the heating and is heated into hot air. When the hot air circulates in the house, the room is warm.

What happens if you leave the radiator somewhere else in the house? The heating side heats the air. And the cold air from the outside world is constantly coming in from outside the house. After the cold air has cooled the room, the radiator heats him, and the room will not be warm.

Therefore, the heating system, including the radiator type electric heater (Shanghai seems to be called oil tin), works in the above way. And not the so-called heating of the object. As you can tell from the name of the heating, it is warm"gas"

ps1.The heating in the north uses high-temperature water heated by large boilers to circulate at high speed in the radiators of thousands of households through pipes. If the heating area of a heating boiler is too large, the heat of the radiator will be different according to its distance from the main pipe, the nearest hot, the farther cool, because the water will lose some heat during the circulation process.

Each section of the radiator has a water valve, and many people will secretly let go of the water valve to connect to the hot water, and many people do this, and the boiler needs to continuously inject water to ensure the amount of water. Water is wasted and coal is wasted. Later, the heating company came up with a trick to add chemicals to the water, which not only changed the specific heat of the water, but also prevented the general public from using the water in the radiator casually.

Kill two birds with one stone. PS2: The reason why the heater doesn't work well is because the air volume of the heater is small and the temperature is low, which is not enough to heat all the cold air in the room. Therefore, the effect is not good, and only a small area can be heated.

As soon as the shutdown was stopped, the surroundings cooled down.

Heat dissipation equipment for heating in winter can be divided into 1Cast iron radiator 2Steel radiators. 3. Non-ferrous metal radiators. According to the use of the division, it can be divided into: industrial radiators. Radiators for civil use.

At present, China's civil radiators are mainly used in the north. The production base is mostly concentrated in: Jizhou City, Hebei Province. Qingxu area, Shanxi Province.

There are two types of heating: water heating and air heating.

In the former, hot water flows in the radiators and pipes, which is supplied by a nearby heating plant. It is generally the cooling water of the power plant.

The latter is heated by hot steam. Compared with water heating, the temperature rises and decreases quickly, and the temperature is high. But it can also cause the air to be drier.

It is mainly the gas produced during the heating process.

The gas in the heating is not gas. It's hot water.