A type of floor heating device

Abstract

This utility model discloses a floor heating device, comprising multiple floor heating units. Each floor heating unit includes, from bottom to top, an insulation layer, a heat exchange layer, a heat transfer layer, and a floor. A heat pipe is disposed within the heat exchange layer; a phase change medium is disposed within the heat transfer layer. Encasing the phase change medium within the heat transfer layer prevents leakage, facilitates sealing testing of the heat transfer layer, and promotes modular production and assembly of the floor heating units. It also improves the stability and reliability of the floor heating units. The heat released by the heat pipes is directionally transferred to the heat transfer layer and the floor, improving heat utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of residential heating technology, specifically to a floor heating device. Background Technology

[0002] Underfloor heating, short for radiant floor heating, uses the floor as a heat source to evenly heat the entire floor, and then distributes heat to the room through radiation and convection to achieve comfortable heating. Underfloor heating systems typically use water-filled coils or heating cables for heating, and the pipes are laid across the entire floor area during home renovation.

[0003] CN105910200B discloses a dual-terminal air source heat pump system with a floor heating module containing phase change heat storage material. The system is filled with phase change heat storage material in the support template groove. The upper surface of the phase change heat storage material and the aluminum foil layer have downward arc-shaped recesses at the grooves. Each arc-shaped recess is filled with a heating branch pipe to improve the energy efficiency ratio of the air source heat pump, satisfying indoor thermal comfort while solving the defrosting problem. The system can be modularly produced and assembled on-site, reducing construction difficulty.

[0004] However, since the phase change material / phase change medium melts at high temperatures and forms a liquid, the entire arc-shaped depression needs to be sealed, which makes construction difficult. If there are problems with the seal, leakage is likely to occur, and the thermal efficiency will drop significantly after the phase change material leaks out. Utility Model Content

[0005] To address the aforementioned technical problems in the existing technology, this utility model provides a floor heating device that prevents the leakage of liquefied phase change materials.

[0006] This utility model discloses a floor heating device, including multiple floor heating units. Each floor heating unit includes, from bottom to top, an insulation layer, a heat exchange layer, a heat transfer layer, and a floor. A heat pipe is installed in the heat exchange layer, and a phase change medium is installed in the heat transfer layer.

[0007] Preferably, the heat transfer layer includes an upper film layer and a lower film layer, and the phase change medium is disposed in the cavity between the upper film layer and the lower film layer.

[0008] Preferably, the upper and lower film layers can be PET parts.

[0009] Preferably, the insulation layer includes a base layer, an insulation pad, an aerogel, and a reflective layer arranged sequentially from bottom to top.

[0010] Preferably, the reflective layer is made of aluminum foil; the heat insulation pad is made of foam; and the base layer is made of PET.

[0011] Preferably, the heat exchange layer is provided with an outer frame; the heat pipe is disposed inside the outer frame.

[0012] Preferably, the heat pipe is mounted inside the outer frame via a support member;

[0013] The heat exchange layer is filled with a heat transfer medium.

[0014] Preferably, it also includes a heat source, a manifold, and a collector; the output end of the heat source is connected to the manifold; the output end of the manifold is connected to an interface of the underfloor heating unit.

[0015] Another interface of the underfloor heating unit is connected to the input end of the water collector; the output end of the water collector is connected to the input end of the heat source.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: the phase change medium is wrapped in the heat transfer layer to avoid leakage of the phase change medium, facilitates the sealing test of the heat transfer layer, and is conducive to the modular production and assembly of the underfloor heating unit; improves the stability and reliability of the underfloor heating unit; the heat released by the heat pipe is directed to the heat transfer layer and the floor, improving the heat utilization rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the floor heating unit structure of the floor heating device in Example 1;

[0018] Figure 2 This is a partial structural diagram of the underfloor heating unit;

[0019] Figure 3 This is a cross-sectional view of the underfloor heating unit;

[0020] Figure 4 This is a schematic diagram of heat pipe installation;

[0021] Figure 5 This is a cross-sectional view of the underfloor heating unit in Example 2;

[0022] Figure 6 This is the logic block diagram of the underfloor heating device in Example 4.

[0023] Marked in the diagram: 1. Underfloor heating unit; 2. Floor;

[0024] 3. Heat transfer layer; 31. Upper film layer; 32. Phase change medium; 33. Lower film layer;

[0025] 4. Heat exchange layer; 41. Heat pipe; 42. Interface; 46. Supporting components; 47. Outer frame;

[0026] 5. Insulation layer; 51. Reflective layer; 52. Aerogel; 53. Insulation pad; 54. Base layer;

[0027] 6. Heat source; 61. Water distributor; 62. Water collector. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings:

[0030] Example 1 provides a floor heating device, such as Figures 1-6 As shown, it includes multiple floor heating units 1, each floor heating unit 1 including, from bottom to top, an insulation layer 5, a heat exchange layer 4, a heat transfer layer 3 and a floor 2; wherein, a heat pipe 41 is provided in the heat exchange layer 4; and a phase change medium 32 is provided in the heat transfer layer 3.

[0031] The phase change medium 32 is wrapped inside the heat transfer layer 3 to prevent leakage of the phase change medium 32, facilitate the sealing test of the heat transfer layer 3, and facilitate the modular production and assembly of the underfloor heating unit 1; improve the stability and reliability of the underfloor heating unit 1; after the heat pipe 41 releases heat, it is directionally transferred through the heat transfer layer and the floor to improve the heat utilization rate.

[0032] The heat transfer layer 3 includes an upper film layer 31 and a lower film layer 33, and the phase change medium 32 is disposed in the cavity between the upper film layer 31 and the lower film layer 33. The upper film layer 31 and the lower film layer 33 can be black PET parts.

[0033] The melting point of the phase change medium 32 is 25-45 degrees Celsius, preferably 28-30 degrees Celsius. That is, the phase change medium 32 is solid at room temperature and liquid under operating conditions.

[0034] Example 2, as Figure 5 As shown, the insulation layer 5 includes, from bottom to top, a base layer 54, an insulation pad 53, an aerogel 52, and a reflective layer 51. The reflective layer 51 is used for heat reflection, reducing the rate of heat diffusion downwards, and can be made of aluminum foil. The insulation pad 53 is used for heat insulation and can be made of insulating foam, more specifically, biodegradable foam. The aerogel 52 reduces or prevents the downward transfer of underfloor heating temperature and also serves a fire-retardant function. The heat pipe 41 is sandwiched between the heat transfer layer 3 and the reflective layer 51. The base layer 54 can be made of PET.

[0035] Example 3, as Figure 2 , Figure 3 and Figure 4As shown, the heat exchange layer 4 is provided with an outer frame 47; the heat pipe 41 is disposed inside the outer frame 47. Specifically, the heat pipe 41 is installed inside the outer frame 47 by a support member 46, which serves a supporting function. The heat exchange layer 4 is also filled with a heat transfer medium, such as graphite powder and silica powder.

[0036] Example 4, as Figure 6 As shown, the underfloor heating system also includes a heat source 6, a manifold 61, and a collector 62; the output end of the heat source 6 is connected to the manifold 61; the output end of the manifold 61 is connected to one interface 42 of the underfloor heating unit 1; the other interface 42 of the underfloor heating unit 1 is connected to the input end of the collector 62; and the output end of the collector 62 is connected to the input end of the heat source 6. The heat source 6 can be a boiler, used to supply the heat medium.

[0037] This invention, by encapsulating the phase change medium 32 between the upper film layer 31 and the lower film layer 33, facilitates the sealing and preservation of the phase change medium 32 and prevents leakage of the phase change medium 32; improves the heat insulation performance of the heat insulation layer 5 through the reflective layer 51, aerogel 52 and heat insulation pad 53; reduces the rate of temperature rise to the ground; achieves uniform heat dissipation on the surface of the floor heating unit 1; and reduces operating energy consumption.

[0038] It should also be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A floor heating device, characterized in that, It includes at least one floor heating unit (1), which includes, from bottom to top, an insulation layer (5), a heat exchange layer (4), a heat transfer layer (3), and a floor (2); A heat pipe (41) is provided inside the heat exchange layer (4); a phase change medium (32) is provided inside the heat transfer layer (3).

2. The floor warming device of claim 1, wherein, The heat transfer layer (3) includes an upper film layer (31) and a lower film layer (33), and the phase change medium (32) is disposed in the cavity between the upper film layer (31) and the lower film layer (33).

3. The underfloor heating device according to claim 2, characterized in that, The upper film layer (31) and the lower film layer (33) are PET parts.

4. The underfloor heating device according to claim 1, characterized in that, The heat insulation layer (5) includes a base layer (54), a heat insulation pad (53), an aerogel (52), and a reflective layer (51) arranged sequentially from bottom to top.

5. The underfloor heating device according to claim 4, characterized in that, The reflective layer (51) is made of aluminum foil; the heat insulation pad (53) is made of foam pad; and the base layer (54) is made of PET.

6. The underfloor heating device according to claim 1 or 4, characterized in that, The heat exchange layer (4) is provided with an outer frame (47); the heat pipe (41) is provided inside the outer frame (47).

7. The underfloor heating device according to claim 6, characterized in that, The heat pipe (41) is mounted inside the outer frame (47) via a support (46); The heat exchange layer (4) is filled with a heat transfer medium.

8. The underfloor heating device according to claim 1, characterized in that, It also includes a heat source (6), a water distributor (61) and a water collector (62); the output end of the heat source (6) is connected to the water distributor (61); the output end of the water distributor (61) is connected to an interface (42) of the floor heating unit (1); Another interface (42) of the underfloor heating unit (1) is connected to the input end of the water collector (62); the output end of the water collector (62) is connected to the input end of the heat source (6).

Images