Analysis of structure and characteristics of ground radiant heating

Radiant heating on the ground is to radiate heat on the ground to warm the room, and the temperature is from bottom to top, making people feel comfortable.

structure type
1, the boat tube. Mainly used XLPE cross-linked pipe with heat resistance, pressure resistance, corrosion resistance and anti-aging. It has low water resistance and long service life of 60 years. It saves metal and pipe, and has no interface under the ground layer and does not leak. On the surface layer of the building, high-efficiency insulation materials are laid first; the cross-linked pipes with a length of 120-150 m are bidirectionally circulated in a special way and fixed on the insulation material at a certain interval. Then backfill the bean stone concrete, and then make the ground layer after tamping and leveling (the material is not limited, it can be marble, brick, wooden floor, carpet, etc.). In order to prevent concrete cracking, additives and additional expansion joints are added during construction. The heat medium can be used as an independent system with other heating back water, air conditioning return water, residual hot water, geothermal water, or heat exchange, and the water temperature is lower than 50 °C. The low-temperature micro-pump is used to circulate the low-temperature hot water in the cross-linked tube to heat the surface layer and radiate heat.

2, geothermal cable. It is a kind of metal wire as a heating element, EVA heat-resistant material is an insulator, tin-plated braided copper wire is shielded, and plastic protective tape is extruded into a jacket (CSP). After being energized, infrared radiation waves are generated, conducted to the ground, and then radiated to Indoors, for heating purposes. The floor temperature is 26-32 ° C and the room temperature can reach 18-25 ° C.

3, geothermal hot plate . There is a carbon fiber heating body plus an oxidized aluminum alloy shell, and a heating plate which is combined with a steel plate by a polyurethane foaming process, is laid on the thermal insulation layer on the cement base surface, and then covers the floor decorative layer. After the power is turned on, the electric heating plate heats up, transfers heat to the ground, and then radiates to the indoor heating.

4, geothermal film. Some are used in conjunction with laminate flooring. Some put the electric heating film in the wooden floor trough, once in place, the construction is simple and convenient.

Characteristics
1, room temperature from bottom to top, the temperature gradient is appropriate, so that people's feet are warm and cool, is the comfortable heating method of Zui.

2, does not occupy the ground, can make full use of the indoor effective area. However, the floor slab is thickened and the building load is increased.

3. Solving the heating problem of large span and low window buildings.

4, indoor hygiene, fresh air. There is no convection of dirty air, no dust, no smell, no noise.

5, long service life. The cross-linked pipe can be used for more than 60 years, and the hot cable and electric heating plate can be used for 30 years.

6, low temperature heating, high efficiency and energy saving. The design is selected according to the parameter of 16 °C, and the heating effect can reach 20 °C. The water pipe can be used for other heating and returning water, air conditioning return water, residual hot water, geothermal water, and the like.

7, safe and secure. No need to worry about burns and fires.

8, large heat capacity, good thermal stability. During intermittent heating, the temperature changes slowly.

9. Operation management is simple and easy, and maintenance and operation costs are low.

10. Some radiation far infrared rays have a physical and therapeutic effect on the human body.

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