The principle of heating is to heat the water, so what are the hidden dangers of heating water?

First, the introduction of heating.

Heating is a kind of facility used for heating in the northern winter. Because the temperature in the northern region is generally below zero in winter, which makes it impossible for northerners to live normally, there are heating facilities to keep out the cold. The heating in the north is generally in the form of water heating, and it is necessary to bury the water pipe into the ground at least half a meter in advance to ensure the normal flow of the water pipe; The heating water is pressurized by station, and a pressurization point needs to be built at intervals to heat and pressurize the heating water, so that the heating water can enter every household; The principle of heating heating is to heat the water, and the water carries the heat in the heating pipe of the household to dissipate heat, where to provide heat, and the heating water in the pipe is recycled, and the heating water will flow back to the total heating boiler to heat, and then flow out.

Second, the hidden danger of heating water.

The first point is that heating water cannot be directly drunk, because heating water is used in industrial water, not tap water, so it cannot be directly drunk, which will endanger human health; Second, heating water should not be used to wash clothes and wash hands of feet, because heating water adds a kind of preservative water, also known as softened water.

It is to avoid the heating pipe being corroded, prolong the service life of the heating pipe, if it is used to wash clothes, it will have a great impact on the material of the clothes, if it is used to wash feet and hand washing, it will hurt**, if there is an injury, it may lead to infection; Third, it cannot be used to wash vegetables, the chemical composition in the heating water is too high, and it may lead to poisoning if it is eaten to wash vegetables; Fourth, the heating water in the heating pipe can not be released without permission, which will affect the heating system of the whole building, and the water discharge is equivalent to reducing the pressure in the pipe, which will lead to insufficient heating; Fifth, the heating water itself is very warm, and the water pressure in the heating pipe is very large, and it is easy to be scalded by connecting the heating water without permission.

Or be injured by the jet of water. <>

3. What should I pay attention to when using heating.

The first point is to ensure that there is ventilation inside and outside the indoor and outdoor when using heating, because the heating temperature is high and the indoor air is not circulated, which will cause throat discomfort and easy to catch a cold; Second, do not put a shield on the heating pipe, so that the heat dissipation effect of the heating will be weakened; The third point is to maintain and repair the heating pipe regularly, because the heating water temperature in the heating pipe is very high, the pressure is very high, and the spray can easily cause serious injuries. <>

Heating can ensure that the room is as warm as spring in the cold winter, which is a high temperature. The temperature of the heating water is naturally the same, and the pressure is also very high, and the spray can cause people to suffer severe burns.

If the temperature is too high, I am afraid that the radiator will also be **, because not long ago there was a news that the radiator in the woman's house was too hot, and the radiator was also aging, resulting in the radiator**, which is also very dangerous.

The hidden danger of heating water is that it may reach a certain temperature, so people who have heating at home must pay attention to this problem, and remember to put some hot things next to the radiator to avoid unpredictable consequences.

There are many hidden dangers of heating water. First of all, there is the danger of heating water leakage, and the pressure inside is very large, and once it is sprayed, it will make people burn and so on.

Will the heating be hot all the time: When the heating at home is not hot, the water should be released from the end of the return water, otherwise it may cause the water to be leaked directly without circulating at home, and the impurities remaining in the pipe or radiator will accumulate. If you take the correct way to discharge water, you can use the pressure of heating water to bring out the impurities in the system, so when you first release water, all that comes out is dirty water.

If the heating is not hot due to the pressure difference between the water supply of the heating system and the return water circulation is too small, then it will only have the effect of heating up when the water is discharged, and once the water is stopped, the heating will soon be not hot. The heating at home can not be discharged all the time, which will affect the heating effect of other families, so when the water is generally released is clean and pressurized hot water, it is necessary to stop discharging water.

Because there is an air blockage in the pipeline, it needs to be deflated.

When the circulating pump is pressurized, the water in the pipe is pressurized by the circulating pump without air bubbles and then runs in circulation: if the circulating water is lost for some reason, there is a large amount of gas in the upper part of the pipe. Since air is less dense than water, the water at the high pressure end is blocked because it cannot hold down the air, so the water in this pipe cannot be circulated, and the heating is of course not hot.

Are you talking about exhausting the slag and nuclear water through the exhaust valve? This situation is mainly because of the air blockage in the radiator, resulting in poor backflow, so the hot water will not be able to enter the radiator, so after exhausting, the hot water return will be smooth, and the heat will be dissipated normally.

Kiss! Hello, happy to answer your <>

The inlet water of the pro-heating is first heated by the water or the heating is as follows: in the case of normality, in the heating system, the heating pipe should be heated first by the water inlet pipe, and it is normal to heat after the return pipe, if the water return pipe is hot first, and the water inlet pipe is hot, it is an abnormal phenomenon, because the hot water enters from the water inlet pipe first, and then returns the water through the heating and then the Liu Jin water return pipe, so it should still be the water inlet pipe to open the water first. Extended information: The heating is heated first when the water is inlet, and the return valve is opened first, so that the air in the system can be smoothly discharged from the exhaust valve at the upper end.

Then open the water gate and the system enters the normal heating cycle. Check whether the water, electricity and gas pipeline switch valves are connected properly; See if there is looseness and aging at the interface; Check if the pressure of the heating is high enough (look at the pressure gauge). Hope mine can help you <>

Do you have any other questions?

Plumbing radiators.

The main reason for not heating is the accumulation of gas in the radiator or pipe, the hot water in the system can not circulate normally, and the heat can not be dissipated, so the most fundamental way to solve the problem of not heating is to release the air in the radiator system. Some users don't understand these, and blindly release water when the radiator is not hot at home, which not only wastes water resources, but also makes the hot water storage in the system insufficient, which aggravates the degree that the radiator is not hot.

If the user discharges a large amount of water without authorization, the radiator system is prone to hydraulic imbalance, resulting in insufficient water supply to the system, and the replenishment of a large amount of cold water consumes energy on the one hand, and on the other hand, it causes the radiator to become less and less hot. The water in the radiator pipes is also highly corrosive and contains chemicals that are harmful to the human body, so it is best not to release the water in the radiator at will.

Gas wall complex.

The hanging furnace is mainly by premixing the combustion gas with the air after the point.

Fire combustion, through the heat exchange system to heat the heat medium water (or domestic hot water), and then through the heat dissipation end to heat the air for heating or heating.

The working process of the gas wall-hung boiler is as follows: in the standby working state of the boiler, when the boiler perceives the need for heating, the fan starts and starts the "front purging" for 30 seconds, forming a negative pressure in the combustion chamber and the air enters the combustion chamber; The wind pressure difference switch is activated, the gas solenoid valve is opened, and the gas enters the combustion chamber and is premixed with air; The circulating water pump began to work; At the same time, the ignition electrode begins to discharge to form an arc to ignite the gas, after the gas is burned, the flame heats the boiler boiler water in the main heat exchanger for heat exchange, and the circulating water pump sends the hot water out to the secondary system for heat exchange for heating or heating.

When there is a demand for domestic hot water, the domestic hot water flow switch is activated and the electromagnetic three-way valve is switched, and the boiler water is heated by the heat exchanger, and then the domestic hot water is siphoned off.

Hot water itself is a heat transfer medium.

Although it is full of water, in winter the Northeast will be heated by central heating, so the water inside will also become hot water, and the indoor temperature can also be guaranteed.

Because the heat emitted by hot water can raise the temperature of the room and make people feel warmer.

The earliest heating in the north was not hot water. In fact, it should be hot steam, so there is a heating name**. The specific reason is that the hot steam used for heating was originally called out.

However, the use of hot steam heating has its own problems, so it is slowly disappearing.