Novel traditional ground heating system

Abstract

The utility model relates to the technical field of ground heating systems, in particular to a novel traditional ground heating system. The heating system is arranged on the cement floor and comprises a containing groove, a PET base material layer and a composite aluminum foil layer, the containing groove is formed in the cement floor, the top of the PET base material layer is covered with the composite aluminum foil layer, and the bottom of the PET base material layer is buried in the containing groove; the thickness of the PET base material layer is less than or equal to 30mm; by utilizing the characteristics of high strength and high melting point of PET, the thickness of the PET base material layer can be controlled to be below 30mm by the preparation process, so that the thickness of the existing base material layer can be effectively reduced by adopting the PET base material layer, the risk of base material layer collapse caused by overheating of electric heating or water heating is effectively reduced, and the service life of the base material layer is prolonged. And meanwhile, due to the characteristics, the PET base material layer can have better strength and flatness, and is not easy to deform under strong external force, so that the risk of deformation and collapse of the pit can be further reduced.

Description

Technical Field

[0001] The present application relates to the technical field of floor heating systems, and in particular to a new type of traditional floor heating system. Background Art

[0002] At present, floor heating is carried out by heating electric heating or hot water heating. Heating electric heating is a product made of cable structure, which uses electricity as energy and uses alloy resistance wire to generate electricity to achieve heating or heat preservation effect. After the heating cable is energized, it generally operates at a temperature between 40 and 70°C, and transmits heat energy to the heated body through heat conduction (or convection) or far-infrared radiation, so as to achieve the heating effect. At present, the cable structure for heating electric heating is installed in the ground to obtain a good heating effect. Hot water heating uses hot water as a heat source, which generally needs to operate in a temperature range of 40°C to 80°C, and transmits it to the heated body through heat conduction, so as to achieve the heating effect.

[0003] At present, the practices for floor heating systems are roughly divided into traditional floor heating and dry floor heating. Among them, traditional floor heating is to pre-bury the electric heating system or water heating pipes in the traditional cement mortar floor, block the downward transfer of heat through extruded boards, and then use solidified cement mortar to ensure the laying of heat. However, this setting method is difficult to retain heat due to the good thermal conductivity of cement mortar. Therefore, at this stage, dry floor heating is generally used for electric heating or water heating. Dry floor heating uses extruded board (XPS) material or polystyrene foam (EPS) material as the base material, and opens grooves in which the electric heating system and water heating pipes can be buried, and then a composite aluminum foil layer is applied above the base material to allow the heat of the electric heating system or water heating system to transfer upward.

[0004] However, due to the low melting point of XPS material or EPS material (generally between 60℃ and 70℃), the heat generated by the electric heating system is fast and high in electric heating, while the heat generated by water heating is slow but high in heat. As a result, there is a risk of collapse of the material in dry floor heating. In addition, the external pressure-bearing capacity of XPS material and EPS material is poor, and they are easily deformed under the action of external force. Therefore, after laying decorative tiles or floor tiles on the composite aluminum foil layer above the substrate, it is easy to be compressed, causing deformation of the entire substrate.

[0005] Therefore, how to provide a new traditional floor heating system to avoid excessive deformation of the substrate layer and reduce the risk of collapse is a technical problem that urgently needs to be solved. Utility Model Content

[0006] The present application provides a new type of traditional floor heating system to solve the technical problems in the prior art caused by the risk of excessive deformation and collapse of the base material layer used in dry floor heating.

[0007] In a first aspect, the present application provides a new type of traditional floor heating system, the heating system is arranged on a cement floor, the heating system comprises a PET substrate layer and a composite aluminum foil layer, the top of the PET substrate layer is covered with the composite aluminum foil layer, and the bottom of the PET substrate layer is fixed on the cement floor;

[0008] A heating channel groove group is provided in the PET substrate layer to accommodate an electric heating structure or a water heating structure;

[0009] The thickness of the PET substrate layer is ≤30 mm.

[0010] Optionally, the thickness of the PET substrate layer is 4 mm to 30 mm.

[0011] Optionally, the heating channel groove group includes a main heating pipe groove, and the opening of the main heating pipe groove is arranged at the connection between the PET substrate layer and the composite aluminum foil layer.

[0012] Optionally, the heating channel trough group also includes branch heating troughs, which are evenly distributed on one side or both sides of the main heating pipe trough, and the opening of the branch heating trough is arranged at the connection between the PET substrate layer and the composite aluminum foil layer.

[0013] Optionally, the thickness of the composite aluminum foil layer is 0.01 mm to 0.2 mm.

[0014] Optionally, the PET substrate layer and the cement floor are fixedly connected via an adhesive layer.

[0015] Optionally, the heating system further comprises a balancing layer, wherein the balancing layer is fixedly connected to the surface of the composite aluminum foil layer.

[0016] Optionally, the heating system further comprises a finishing layer, wherein the finishing layer is fixedly connected to the surface of the composite aluminum foil layer.

[0017] Optionally, the heating system further includes a balancing layer and a finishing layer, wherein the balancing layer is fixedly connected to the surface of the composite aluminum foil layer, and the finishing layer is arranged on the surface of the balancing layer.

[0018] Optionally, the facing layer includes a brittle facing layer, a flexible facing layer and / or a dry-process tile facing layer;

[0019] The connection between the facing layer and the balancing layer includes bonding, anchoring, plugging and / or splicing.

[0020] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0021] A traditional new floor heating system provided in an embodiment of the present application, compared with traditional XPS material or EPS material as a substrate, by replacing it with a polyethylene terephthalate (PET) substrate layer, utilizing PET's high strength of more than 500 kPa and high melting point of about 260°C, its preparation process can control the thickness of the PET substrate layer to be below 25 mm, and the use of the PET substrate layer can effectively reduce the thickness of the existing XPS material or EPS material substrate layer, thereby effectively reducing the risk of substrate layer collapse caused by overheating of electric heating or water heating, while the characteristics of high strength and high melting point enable the PET substrate layer to have better strength and flatness, and is not easy to deform when subjected to strong external force, further reducing the risk of pit deformation and collapse. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 A schematic diagram of the structure of a traditional new floor heating system with adhesive fixing provided in an embodiment of the present application;

[0025] Figure 2 A schematic structural diagram of a traditional new floor heating system with another adhesive fixing method provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the structure of a new type of traditional floor heating system fixed by nails provided in an embodiment of the present application;

[0027] Figure 4 A schematic diagram of the structure of a traditional new floor heating system with a single balancing layer provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of the structure of a traditional new floor heating system with a single facing layer provided in an embodiment of the present application;

[0029] Figure 6 A schematic diagram of the structure of a traditional new floor heating system with a composite balancing layer and a finishing layer provided in an embodiment of the present application;

[0030] Among them, 1-cement floor, 2-PET substrate layer, 3-composite aluminum foil layer, 4-heating channel trough group, 41-main heating pipe trough, 42-branch heating trough, 5-adhesive layer, 6-finishing layer, 7-balancing layer. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0035] The creative thinking of this application is:

[0036] At present, in order to avoid excessive deformation and collapse of the substrate layer, and at the same time, the XPS material is restricted by the production process, and its thickness used in the heating system cannot be less than 25mm, which will greatly reduce the height space of indoor floor decoration. The maximum pressure of EPS material can reach 500kPa, and it is more difficult to improve the strength of the material. Therefore, a higher thickness than XPS material is required, which will greatly reduce the height space of indoor floor decoration.

[0037] Therefore, if the thickness of the substrate layer can be controlled below 30 mm while avoiding excessive deformation of the substrate layer and reducing the risk of collapse, an excellent heating system can be further obtained on the basis of increasing the floor height space of the floor decoration.

[0038] like Figure 1 As shown, the embodiment of the present application provides a new type of traditional floor heating system, the heating system is arranged on a cement floor 1, the heating system comprises a PET substrate layer 2 and a composite aluminum foil layer 3, the top of the PET substrate layer 2 is covered with the composite aluminum foil layer 3, and the bottom of the PET substrate layer 2 is fixed on the cement floor 1;

[0039] The PET substrate layer 2 is provided with a heating channel groove group 4 to accommodate an electric heating structure or a water heating structure;

[0040] The thickness of the PET substrate layer 2 is ≤30 mm.

[0041] In the embodiment of the present application, the cement floor 1 and the bottom of the PET substrate layer 2 are completely covered and fitted together by a fixed connection, and the PET substrate layer 2 can be used to form a thermal insulation interface between the heating channel groove group 4 and the cement floor 1, so that the heat of the heating channel groove group 4 in the PET substrate layer 2 can be dissipated upward, thereby preventing the cement floor 1 from absorbing heat.

[0042] The thickness of the PET substrate layer 2 is controlled to be below 30 mm. On the one hand, the porous structure characteristics of the molecules in the polyethylene terephthalate material determine that it has the characteristic of high strength. On the other hand, the groups and structural characteristics in the polyethylene terephthalate material determine that it has the characteristic of high heat resistance, so that the substrate layer of the electric heating structure or the water heating structure is not easy to deform during the normal working stage, thereby avoiding the situation where the overall strength of the heating system is attenuated due to heat. Therefore, the PET substrate layer 2 prepared using the polyethylene terephthalate material has the advantages of high strength and high heat resistance, which can make the thickness of the PET substrate layer 2 thinner than the thickness of the traditional XPS material or EPS material substrate layer, so the thickness can be achieved below 30 mm.

[0043] It should be noted that the fixing connection between the PET substrate layer 2 and the cement floor 1 can be a rigid fixing method of nailing or a gluing method. The nailing method generally controls the nailing to be within 10 mm of the cement bottom surface 1 to achieve rigid fixing of the PET substrate layer 2.

[0044] The electric heating structure or the water heating structure can be fixed in the set heating channel groove group 4, and the fixing methods include snap-on, sleeve or threaded connection, so that the electric heating structure or the water heating structure forms a loop, and a heating system is built using the loop, and the heat inlet end of the system is connected to the heat source to realize the normal heating operation of the heating system.

[0045] It should be noted that, since electric heating or water heating is arranged in the PET substrate layer 2, and the PET substrate layer 2 is a flexible material and can be formed into a coil, in the actual production stage of the PET substrate layer 2, the electric heating or water heating equipment can be first fixed in the heating channel groove group 4 to obtain the heating channel groove group 4 containing the electric heating structure or the water heating structure, and then the PET substrate layer 2 can be rolled up to form a coil, saving space, and the coil can be laid out in the final laying stage to reduce the on-site construction links.

[0046] In some optional embodiments, the thickness of the PET substrate layer 2 is 4 mm to 30 mm.

[0047] In the embodiment of the present application, the specific thickness of the PET substrate layer 2 is controlled. On the one hand, the PET material within this thickness range has sufficient strength to facilitate the laying of the heating channel groove group 4 and effectively maintain the heat of the heating structure or the water heating structure. On the other hand, this thickness range can save the clearance of indoor floor decoration, thereby increasing the indoor clearance height.

[0048] The thickness of the PET substrate layer 2 can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm or 30 mm.

[0049] In some optional embodiments, the heating channel groove group 4 includes a main heating pipe groove 41 , and an opening of the main heating pipe groove 41 is provided at the connection between the PET substrate layer 2 and the composite aluminum foil layer 3 .

[0050] In some optional embodiments, the heating channel groove group 4 also includes branch heating grooves 42, and the branch heating grooves 42 are evenly distributed on one side or both sides of the main heating pipe groove 41, and the opening of the branch heating grooves 42 is arranged at the connection between the PET substrate layer 2 and the composite aluminum foil layer 3.

[0051] In the embodiment of the present application, by refining the composition of the heating channel slot group 4 and refining the distribution of the main heating pipe slot 41 and the branch heating slot 42, one end of the main heating pipe fixed in the main heating pipe slot 41 is directly connected to the heat source, and the other end is connected to the branch heating pipes fixed in the multiple branch heating slots 42, so as to form a heating circuit and realize the normal operation of the heating system.

[0052] In some optional embodiments, the composite aluminum foil layer 3 has a thickness of 0.01 mm to 0.2 mm.

[0053] In the embodiment of the present application, the specific thickness of the composite aluminum foil layer 3 is controlled so that the composite aluminum foil layer 3 has sufficient thickness to form a thermal insulation layer that isolates the PET substrate layer 2 and the cement floor 1, thereby preventing the heat of the electric heating pipes or water heating pipes fixed in the heating channel groove group 4 from being diffused by the cement floor 1, and further cooperating with the PET substrate layer 2 to improve the overall thermal insulation performance of the heating system.

[0054] The thickness of the composite aluminum foil layer 3 can be 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.15 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm or 0.20 mm.

[0055] In some optional embodiments, the PET substrate layer 2 and the cement floor 1 are fixedly connected via an adhesive layer 5 .

[0056] In the embodiment of the present application, the PET substrate layer 2 and the cement floor 1 are fixed by using an adhesive layer 5, and the specific thickness of the adhesive layer 5 is controlled. On the one hand, the adhesive force of the adhesive layer 5 can be used to completely fix the cement floor 1 and the PET substrate layer 2. On the other hand, the adhesive layer 5 can form a blockage between the PET substrate layer 2 and the cement floor 1, and further cooperate with the composite aluminum foil layer 3 to improve the overall thermal insulation performance of the heating system.

[0057] It should be noted that the adhesive layer 6 can be formed by dispensing glue or bonding with glue liquid.

[0058] In some optional embodiments, the heating system further includes a balancing layer 7 , and the balancing layer 7 is fixedly connected to the surface of the composite aluminum foil layer 3 .

[0059] In some optional embodiments, the heating system further includes a finishing layer 6 , and the finishing layer 6 is fixedly connected to the surface of the composite aluminum foil layer 3 .

[0060] In some optional embodiments, the heating system further includes a balancing layer 7 and a finishing layer 6 , wherein the balancing layer 7 is fixedly connected to the surface of the composite aluminum foil layer 3 , and the finishing layer 6 is disposed on the surface of the balancing layer 7 .

[0061] In the embodiment of the present application, by setting a balancing layer 7 or a finishing layer 6 on the surface of the PET substrate layer 2, the balancing layer 7 can be used to smooth the surface of the composite aluminum foil layer 3 according to actual construction requirements, so that the surface of the heating system is smooth, which is convenient for subsequent decoration or direct use, or the finishing layer 6 is directly set on the surface of the composite aluminum foil layer 3, which can beautify the surface of the composite aluminum foil layer 3 while smoothing the composite aluminum foil layer 3, or the balancing layer 7 is used to balance the surface of the composite aluminum foil layer 3 and then the finishing layer 6 is set, so that a smoother and better heating system can be obtained.

[0062] It should be noted that the introduction of the balancing layer 7 needs to be determined based on the specific strength of the PET substrate layer 2 or the actual needs of the customer. Generally, when the strength of the PET substrate layer 2 is below 800 kPa, the balancing layer 7 needs to be introduced to improve the strength of the overall heating system. When the strength of the PET substrate layer 2 is above 800 kPa, the balancing layer 7 is not needed, but the specific usage needs of the customer need to be considered.

[0063] It should be noted that the introduction of the balancing layer 7 or the finishing layer 6 can better disperse the external force, so that the substrate layer is not easily deformed when subjected to a large impact force, thereby further reducing the risk of pit deformation and collapse of the composite aluminum foil layer 3 and the PET substrate layer 2.

[0064] The balancing layer 6 can be made of a balancing board or other hard decoration materials.

[0065] In some optional embodiments, the facing layer 6 includes a brittle facing layer, a flexible facing layer and / or a dry-process tile facing layer;

[0066] The connection between the facing layer 6 and the balancing layer 7 includes bonding, anchoring, plugging and / or splicing.

[0067] In the embodiment of the present application, the types of the finishing layer 6 are controlled, and the connection method between the finishing layer 6 and the balancing layer 7 is limited. Since the finishing layer 6 can be assembled in an assembled manner, the finishing layer 6 can theoretically be decorated with two or more floor finishing layers, and there are many different options for the connection relationship between different floor finishing layers and the balancing layer 7. Therefore, different finishing layers 6 and their matching relationships with the balancing layer 7 can be selected according to actual customer needs.

[0068] The present application will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are intended only to illustrate the present application and are not intended to limit the scope of the present application. The experimental methods for which specific conditions are not specified in the following examples are usually measured according to national standards. If there is no corresponding national standard, then the conditions recommended by the manufacturer are followed.

[0069] Example 1

[0070] like Figure 1 As shown, a new type of traditional floor heating system is arranged on a cement floor 1. The heating system includes a PET substrate layer 2 and a composite aluminum foil layer 3. The top of the PET substrate layer 2 is covered with the composite aluminum foil layer 3. The PET substrate layer 2 and the cement floor 1 are fixedly connected by a continuous adhesive layer 5. The thickness of the adhesive layer 5 is 1 mm.

[0071] A heating channel groove group 4 is provided in the PET substrate layer 2 to accommodate an electric heating structure or a water heating structure;

[0072] The thickness of the PET base material layer 2 is 12 mm.

[0073] The heating channel groove group 4 includes a main heating pipe groove 41 , and the opening of the main heating pipe groove 41 is arranged at the connection between the PET substrate layer 2 and the composite aluminum foil layer 3 .

[0074] The heating channel trough group 4 also includes branch heating troughs 42 , and the branch heating troughs 42 are evenly distributed on one side of the main heating pipe trough 41 .

[0075] The thickness of the composite aluminum foil layer 3 is 0.05 mm.

[0076] The heating system further comprises a balancing layer 7 , which is fixedly connected to the surface of the composite aluminum foil layer 3 .

[0077] Example 2

[0078] like Figure 2 As shown, Example 2 is compared with Example 1. The difference between Example 2 and Example 1 is:

[0079] The PET substrate layer 2 and the cement floor 1 are fixedly connected by a point-bonded adhesive layer 5, and the point-bonded adhesive thickness of the adhesive layer 5 is 2 mm.

[0080] The thickness of the PET base material layer 2 is 4 mm.

[0081] The thickness of the composite aluminum foil layer 3 is 0.2 mm.

[0082] The branch heating grooves 42 are evenly distributed on both sides of the main heating pipe groove 41 .

[0083] Example 3

[0084] like Figure 3 As shown, Example 3 is compared with Example 1. The difference between Example 3 and Example 1 is:

[0085] The PET substrate layer 2 and the cement floor 1 are fixedly connected by nailing.

[0086] The thickness of the PET base material layer 2 is 30 mm.

[0087] The thickness of the composite aluminum foil layer 3 is 0.2 mm.

[0088] The thickness of the adhesive layer 5 is 2 mm.

[0089] Example 4

[0090] Comparing Example 4 with Example 1, the difference between Example 4 and Example 1 is:

[0091] like Figure 4 As shown, the heating system further includes a finishing layer 6 , which is fixedly connected to the surface of the composite aluminum foil layer 3 .

[0092] The PET substrate layer 2 and the cement floor 1 are fixedly connected by nailing.

[0093] The thickness of the PET base material layer 2 is 30 mm.

[0094] The thickness of the composite aluminum foil layer 3 is 0.2 mm.

[0095] The thickness of the adhesive layer 5 is 2 mm.

[0096] Example 5

[0097] Comparing Example 5 with Example 1, the difference between Example 5 and Example 1 is:

[0098] like Figure 5 As shown, the heating system further includes a balancing layer 7 , which is fixedly connected to the surface of the composite aluminum foil layer 3 .

[0099] Example 6

[0100] Comparing Example 6 with Example 1, the difference between Example 6 and Example 1 is:

[0101] like Figure 6 As shown, the heating system further includes a balancing layer 7 and a finishing layer 6 . The balancing layer 7 is fixedly connected to the surface of the composite aluminum foil layer 3 , and the finishing layer 6 is arranged on the surface of the balancing layer 7 .

[0102] To summarize, the embodiment of the present application provides a new type of traditional floor heating system. Compared with the traditional XPS material or EPS material as the substrate, by replacing it with a polyethylene terephthalate (PET) substrate layer, the high strength of PET above 500 kPa and the high melting point of about 260°C are utilized. The preparation process can control the thickness of the PET substrate layer 2 to be below 30 mm. Therefore, the use of the PET substrate layer 2 can effectively reduce the thickness of the existing XPS material or EPS material substrate layer, thereby effectively reducing the risk of substrate layer collapse caused by overheating of electric heating or water heating. At the same time, the characteristics of high strength, good melting point make the PET substrate layer 2 have better flatness, and it is not easy to deform when subjected to strong external force, which can further reduce the risk of pit deformation and collapse.

[0103] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A new type of traditional floor heating system, the heating system is installed on a cement floor (1), characterized in that: The heating system comprises a PET substrate layer (2) and a composite aluminum foil layer (3), wherein the PET substrate layer (2) is arranged on the cement floor (1), the top of the PET substrate layer (2) is covered with the composite aluminum foil layer (3), and the bottom of the PET substrate layer (2) is fixed on the cement floor (1); A heating channel groove group (4) is provided in the PET substrate layer (2) to accommodate an electric heating structure or a water heating structure; The thickness of the PET substrate layer (2) is ≤30 mm.

2. The heating system according to claim 1, characterized in that: The thickness of the PET substrate layer (2) is 4 mm to 30 mm.

3. The heating system according to claim 1, characterized in that: The heating channel groove group (4) comprises a main heating pipeline groove (41), and the opening of the main heating pipeline groove (41) is arranged at the connection between the PET substrate layer (2) and the composite aluminum foil layer (3).

4. The heating system according to claim 3, characterized in that: The heating channel groove group (4) further comprises branch heating grooves (42), wherein the branch heating grooves (42) are evenly distributed on one side or both sides of the main heating pipe groove (41), and the openings of the branch heating grooves (42) are arranged at the connection between the PET substrate layer (2) and the composite aluminum foil layer (3).

5. The heating system according to claim 1, characterized in that: The thickness of the composite aluminum foil layer (3) is 0.01 mm to 0.2 mm.

6. The heating system according to claim 1, characterized in that: The PET substrate layer (2) and the cement floor (1) are fixedly connected via an adhesive layer (5).

7. The heating system according to claim 1, characterized in that: The heating system further comprises a balancing layer (7), wherein the balancing layer (7) is fixedly connected to the surface of the composite aluminum foil layer (3).

8. The heating system according to claim 1, characterized in that: The heating system further comprises a finishing layer (6), wherein the finishing layer (6) is fixedly connected to the surface of the composite aluminum foil layer (3).

9. The heating system according to claim 1, characterized in that: The heating system further comprises a balancing layer (7) and a finishing layer (6), wherein the balancing layer (7) is fixedly connected to the surface of the composite aluminum foil layer (3), and the finishing layer (6) is arranged on the surface of the balancing layer (7).

10. The heating system according to claim 9, characterized in that: The facing layer (6) includes a brittle facing layer, a flexible facing layer and / or a dry-process tile facing layer; The connection method between the finishing layer (6) and the balancing layer (7) includes bonding, anchoring, plugging and / or splicing.

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