Radiant floor heating is a kind of heating method in which the hot water with a temperature not higher than 60 °C circulates in the coil system buried under the floor, heats the whole floor, and radiates heat evenly through the ground.
Radiant floor heating is not mysterious. As early as 1300 BC, the royal family of the Turkish royal family had the radiant form of floor radiant heating. In the famous ancient Roman bath in 80 BC, the radiant heating of the floor appeared in the form of "fire land". The fire that has been used in the northeastern region of China is also the principle of applying radiant floor heating.
In the 1930s, the famous American architect, Mr. Wright, used floor radiant heating in a large number of works designed by him, which greatly promoted the application of floor heating. However, since only copper pipes were used as heating coils at the time, it was not only expensive. Moreover, the maintenance cost caused by corrosion leakage is high, and the application of floor radiant heating is greatly limited.
Until the end of the 1960s, the anti-aging, high-temperature, high-pressure, and flexible plastic pipes were put into practical use, and this situation was improved. The appearance of plastic pipes with low price, no interface under the ground, no internal scale of the pipe, and long service life has greatly promoted the promotion and application of floor radiant heating technology.
Compared with traditional heating, floor radiant heating has the advantages of comfort, energy saving and environmental protection. In foreign countries, this technology is not only used in public housing and various medical institutions, swimming pools, gyms, shopping malls, office buildings and other public buildings. It is also used in building systems, hangars, flower beds, football fields and vegetable greenhouses for building insulation, and even for outdoor roads, roofs, stairs, airport runway snow melting and various industrial pipeline insulation. At present, more than 50% of new buildings in developed countries in Europe and America use floor radiant heating systems.
First, the most comfortable heating method
Chinese medicine believes that "heat is born from the beginning, and cold is from the foot." Modern medicine has also shown that the internal organs of the human body can maintain normal physiological functions only under suitable temperature conditions. When the outside world becomes cold, the human body function is automatically adjusted. In order not to dissipate heat in the body, the blood of the hands and feet will flow back to maintain the temperature required for the internal organs. When the temperature at the foot is low, the blood vessels of the foot contract, the blood flow is blocked, and the blood circulation of the whole body is not smooth, so that the whole body will feel cold. Therefore, warm people must warm their feet first. Only when the feet are warm, the whole body will feel warm.
The traditional way of heating, the top of the room is about 30 ° C, and the human body is located only 15 ° C or even lower. When you sit for a long time, you will feel cold feet and legs, and cold legs and feet will increase the risk of cold leg disease and arthritis.
Floor radiation heat dissipation is the most comfortable heating method. The indoor surface temperature is uniform, and the room temperature gradually decreases from bottom to top with the increase of height. This temperature curve just meets the physiological needs of people, giving people a comfortable feeling of warm feet. . At the same time, floor heating can promote blood circulation in the foot of the occupants, thereby improving systemic blood circulation, promoting metabolism, and improving immunity to a certain extent. In addition, the environment of “hot and cold†can avoid sleepiness, help to enhance memory, improve learning and work efficiency.
Second, high efficiency, energy saving, low operating costs
1. Various low-temperature heat sources such as residual hot water, solar energy and geothermal energy can be utilized;
2, the floor radiant heating method is more efficient than the convection heating method, the heat is concentrated in the height of the human body benefit, and the indoor set temperature is even better than the convection heating method.
The low temperature of 2~5°C can also make people have the same warm feeling, so the heat loss of temperature difference will be greatly reduced;
3. The heat medium is transported at a low temperature, and the heat loss is small during the transfer process, and the heat efficiency is high;
4. Compared with other heating methods, the energy saving range is about 20%. If the district temperature control device is used, the energy saving range can reach 40%.
Third, environmental protection, health, health care
The heating principle of floor radiant heating is radiation heat conduction. Compared with air conditioning, heating, etc., through forced convection circulating hot air heating, the dust flow in the air is much smaller, reducing the spread of harmful bacteria in the air, and the indoor environment is more sanitary and clean, which is beneficial to The health of bronchitis, respiratory tract infections and allergic syndrome; air convection is weakened, water dispersion is less lost, overcoming the indoor heat, dry mouth and other discomfort caused by traditional radiator heating, avoiding excessive drying of female skin due to water loss .
Fourth, do not occupy the use of the area, spend the same money is equal to buy a bigger house
In the home life, we know that we can't put furniture around the heating and its pipes. This is not only the application of a considerable amount of space, but also often causes great troubles in determining the overall decoration style.
With floor heating, there are no radiators and their branches in the room, which increases the indoor use area by 2% to 3%. It is not only convenient for decoration and furniture arrangement. For the big city, the price of several thousand yuan and one square meter is undoubtedly saving you. There are tens of thousands of dollars in fees.
Five, long service life, maintenance-free, good safety performance, saving maintenance costs
Since the floor heating coils are all buried in the floor slab, if there is no man-made damage during the heating operation, there is almost no maintenance problem. The service life is more than 50 years, no corrosion, no scaling, greatly reducing the radiator running, The troubles caused by the drowning, dripping, leaking and maintenance can save maintenance costs.
Sixth, the initial construction safety cost is low, can be divided into sections, easy to measure, easy to manage
Compared with other single-family heating methods, floor radiant heating does not increase construction costs and operation and maintenance costs. The temperature of each room can be independently adjusted and controlled according to needs, which is convenient for household heat metering.
Seven, reduce floor noise
At present, China's floor slabs generally use prefabricated panels or cast-in-place slabs. The sound insulation effect is very poor. The people walking upstairs will affect the downstairs. The floor heating will increase the insulation layer. It has very good sound insulation effect and can reduce noise pollution. Floor heating The process is silent, the indoor environment is quiet, and there is no air conditioning noise, which helps the child to focus on learning, which is conducive to improving learning efficiency.
Eight, long service life
Low-temperature hot water floor heating, plastic pipes buried in the concrete on the ground, if no one is destroyed, the service life is more than 50 years, no corrosion, no scaling, greatly reducing the running, taking, dripping, leaking and maintenance of the radiator to the households The troubles caused can save maintenance costs.
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