Rapid heat conduction method of floor heating floor and floor heating floor based on convective heat transfer

Abstract

The invention discloses a rapid heat conduction method of a floor heating floor and the floor heating floor based on convective heat transfer. The rapid heat conduction method of the floor heating floor comprises the following steps that a convection channel used for air flowing is formed in the middle of a wooden floor; a wooden floor is laid on the top of the heating mechanism, and air at the bottom of the convection channel is heated through the heating mechanism; air at the bottom of the convection channel flows upwards to the top of the convection channel after being heated, and low-temperature air at the top of the convection channel flows to the bottom of the convection channel along with the air; after flowing to the top of the convection channel, the hot air heats the top of the wooden floor, and the floor heating function is achieved. The heat conduction efficiency of the floor heating floor can be improved, and paving of manufacturers is facilitated.

Description

Technical Field

[0001] The invention relates to a floor heating floor, in particular to a rapid heat conduction method of a floor heating floor and a floor heating floor based on convection heat transfer. Background Art

[0002] Conventional floor heating is to lay heating pipes and other heating mechanisms under the floor, and then use the heating mechanism to heat the bottom of the floor heating floor as a whole, and then the floor heating floor conducts the heat to the surface to achieve the floor heating function. However, because wood itself is a good porous insulation material, it has a low thermal conductivity problem, which makes it difficult to meet the user's thermal conductivity requirements for floor heating floors.

[0003] On this basis, in order to improve the thermal conductivity of floor heating floors, manufacturers currently generally use three methods to improve the heat transfer speed of the floor. The first is to shorten the distance between the heating mechanism and the floor surface, such as making grooves on the back of the floor heating floor and snapping the heating mechanism into the back groove of the floor; or opening a through hole in the middle of the floor, and passing the heating mechanism through each floor in turn along the through hole, thereby shortening the heat transfer distance from the heat source to the ground surface. However, the defect of this structure is that whether the heating mechanism is snapped into the back groove of the floor or the heating pipe is plugged into the middle of the floor, it will greatly increase the difficulty of paving the heating mechanism and the floor heating floor, that is, on the one hand, both need to have sufficient dimensional accuracy to avoid installation errors during assembly; on the other hand, the installer also needs to have a high level of installation to ensure the stable assembly of the two, thereby reducing the manufacturer's floor heating floor paving efficiency and increasing the labor cost required for floor paving.

[0004] The second method is to overcome the defect of slow thermal conductivity of wood by adding high thermal conductivity materials into the floor. However, since the price of high thermal conductivity materials themselves is relatively high, this method will increase the cost of the floor and cannot meet the manufacturer's pursuit of economy.

[0005] The third method is to directly reduce the overall thickness of the floor. However, after the thickness of the floor is reduced, it will cause the problem of insufficient dimensional stability, making the floor more prone to warping and deformation in the geothermal environment, and subsequently reducing the feel of the floor.

[0006] Therefore, the existing floor heating floors cannot have the characteristics of good thermal conductivity and convenient installation at the same time. Summary of the invention

[0007] The purpose of the present invention is to provide a rapid heat conduction method for floor heating floors and floor heating floors based on convection heat transfer, which can improve the heat conduction efficiency of floor heating floors and facilitate the installation of manufacturers.

[0008] The technical solution of the present invention: a rapid heat conduction method for floor heating floor, comprising the following steps:

[0009] ① Open a convection channel for air flow in the middle of the wooden floor;

[0010] ② Lay a wooden floor on the top of the heating mechanism, and use the heating mechanism to heat the air at the bottom of the convection channel;

[0011] ③ The air at the bottom of the convection channel flows upward to the top of the convection channel after being heated, and the low-temperature air at the top of the convection channel flows to the bottom of the convection channel;

[0012] ④ After the hot air flows to the top of the convection channel, it heats the top of the wooden floor to achieve the floor heating function.

[0013] The floor heating floor based on convection heat transfer includes a floor body, a plurality of convection channels are spaced apart in the middle of the floor body, the bottom of the convection channels forms a heating layer, and the top of the convection channels forms a heat conduction layer; the air in the heating layer is heated and flows upward to the heat conduction layer, and heats the top of the floor body, thereby realizing the floor heating function.

[0014] In the above-mentioned floor heating floor based on convection heat transfer, the floor body includes a core plate, and the upper and lower sides of the core plate are respectively connected to the front plate and the back plate, and the convection channel is opened in the core plate.

[0015] In the above-mentioned floor heating floor based on convection heat transfer, the core board is formed by splicing a plurality of wooden strips, and the gaps between adjacent wooden strips form convection channels.

[0016] In the aforementioned floor heating floor based on convection heat transfer, the core board includes a splicing layer, the top of the splicing layer is connected to the panel via an upper connecting layer, and the bottom of the splicing layer is connected to the backboard via a lower connecting layer. The splicing layer is made of multiple wooden strips, and the gaps between adjacent wooden strips form convection channels.

[0017] In the above-mentioned floor heating floor based on convection heat transfer, a reinforcing rib is connected to the middle part of the floor body, and the reinforcing rib and the convection channels are arranged perpendicular to each other and penetrate each convection channel.

[0018] In the above-mentioned floor heating floor based on convection heat transfer, the convection channel penetrates the floor body along its length direction, the cross-sectional shape of the convection channel is circular, rectangular or regular polygonal, the height of the convection channel is not less than 10mm, and the width of the convection channel is not less than 5mm.

[0019] Compared with the prior art, the present invention has the following characteristics:

[0020] (1) The present invention opens a convection channel in the middle of the wooden floor so that the heating mechanism can heat the air at the bottom of the convection channel when in use. After being heated, the bottom air will flow upward to the top of the convection channel and then heat the surface of the wooden floor above, thereby realizing the floor heating function. Under the above coordination, the present invention can use air convection heat transfer instead of wood heat conduction to achieve the heat transfer effect, that is, compared with the existing heat conduction method, the heat conduction efficiency of the wooden floor is effectively improved. Moreover, since the above heat conduction method only requires the wooden floor to be paved on top of the heating mechanism in a conventional manner, there is no matching structure between the two, so that compared with the assembly methods such as snap-on and plug-in, it can also effectively reduce its paving difficulty, thereby improving the manufacturer's paving efficiency and reducing its paving cost.

[0021] (2) On the basis of the above, the present invention further improves the structure of the floor heating floor. The floor is formed by splicing a core board, a panel and a back board, and the core board is spliced ​​by a number of small-sized wooden strips, so that the manufacturer can also process wood waste to form wooden strips, which effectively saves the material cost of the floor heating floor and has an environmental protection effect.

[0022] (3) Since the core board is formed by splicing wood strips and has a large number of hollow areas, it will reduce the wood consumption and weight required for the floor, and facilitate transportation by manufacturers; further, after the amount of wood is reduced, the heat required to be absorbed by the floor can be reduced, thereby further increasing the temperature rise rate of the floor surface;

[0023] (4) The reinforcing ribs are perpendicular to the convection channels and penetrate the convection channels, so that the overall structural strength of the floor body can be improved, thereby alleviating the reduction in strength of the floor body caused by the opening of the convection channels, and making the physical properties of the floor heating floor meet the requirements;

[0024] Therefore, the present invention can improve the heat conduction efficiency of the floor heating floor and facilitate the installation of the manufacturer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a working principle diagram of embodiment 1;

[0026] Figure 2 is a cross-sectional view of Example 2 on one side;

[0027] Figure 3 is a cross-sectional view of Embodiment 2 on the other side;

[0028] Figure 4 is a cross-sectional view of Example 3 on one side;

[0029] Figure 5 is a cross-sectional view of Example 3 on the other side;

[0030] Figure 6is a cross-sectional view of Example 4 on one side;

[0031] Figure 7 is a cross-sectional view of Embodiment 4 on the other side;

[0032] Figure 8 is a cross-sectional view of Example 5 on one side;

[0033] Fig. 9 It is a cross-sectional view of Example 5 on the other side.

[0034] The markings in the accompanying drawings are: 1-floor body, 2-convection channel, 3-reinforcement ribs, 101-core board, 102-panel, 103-back board, 1011-splicing layer, 1012-upper connecting layer, 1013-lower connecting layer, 201-heating layer, 202-heat conducting layer. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0036] Embodiment 1. A rapid heat conduction method for a floor heating floor comprises the following steps:

[0037] ① Open a convection channel for air flow in the middle of the wooden floor;

[0038] ② A wooden floor is laid on the top of the heating mechanism. The heating mechanism is a coil heating system conventionally used for floor heating, and the heating mechanism heats the air at the bottom of the convection channel;

[0039] ③ After being heated, the air at the bottom of the convection channel flows upward to the top of the convection channel due to the decrease in density, and the low-temperature air at the top of the convection channel flows to the bottom of the convection channel due to its relatively higher density;

[0040] ④ After the hot air flows to the top of the convection channel, it heats the top of the wooden floor to achieve the floor heating function.

[0041] The schematic diagram of this embodiment is as follows Figure 1 As shown, by opening a convection channel in the middle of the wooden floor, and then paving the wooden floor on the heating mechanism in a conventional manner, the heating mechanism can heat the air X at the bottom of the convection channel when in use. After being heated, the air X will form convection with the cold air Y at the top of the convection channel, that is, the hot air X flows upward and the cold air Y flows downward, so that the hot air X can quickly move to the top of the convection channel under the action of convection, and then heat the surface of the floor heating floor to achieve the floor heating function. Under the above cooperation, the present invention can use air convection instead of wood heat conduction to achieve the heat transfer function in the convection channel area, that is, effectively improve the thermal conductivity efficiency of the floor heating floor, and facilitate the manufacturer's paving.

[0042] Embodiment 2. A floor heating floor based on convection heat transfer is composed of Figure 2-3 As shown, it includes a floor body 1, and a plurality of convection channels 2 are spaced apart in the middle of the floor body 1, a heating layer 201 is formed at the bottom of the convection channel 2, and a heat-conducting layer 202 is formed at the top of the convection channel 2; the air in the heating layer 201 is heated and flows upward to the heat-conducting layer 202, and heats the top of the floor body 1, thereby realizing the floor heating function.

[0043] The floor body 1 includes a core plate 101 , and a panel 102 and a back plate 103 are connected to the upper and lower sides of the core plate 101 , respectively. The convection channel 2 is opened in the core plate 101 .

[0044] The core board 101 is formed by splicing a plurality of wood strips, and the gaps between adjacent wood strips form convection channels 2 .

[0045] The convection channel 2 penetrates the floor body 1 along its length direction. The cross-sectional shape of the convection channel 2 is a square. The width and height of the convection channel 2 are both 12 mm.

[0046] This embodiment further defines the composite structure of the floor heating floor by splicing a number of wooden strips of specific shapes together to form a core board 101, so that it can effectively reduce the consumption of wood and its material cost while achieving the air convection heat transfer effect.

[0047] Embodiment 3. A floor heating floor based on convection heat transfer is composed of Figure 4-5 As shown, it includes a floor body 1, and a plurality of convection channels 2 are spaced apart in the middle of the floor body 1, a heating layer 201 is formed at the bottom of the convection channel 2, and a heat-conducting layer 202 is formed at the top of the convection channel 2; the air in the heating layer 201 is heated and flows upward to the heat-conducting layer 202, and heats the top of the floor body 1, thereby realizing the floor heating function.

[0048] The floor body 1 includes a core plate 101 , and a panel 102 and a back plate 103 are connected to the upper and lower sides of the core plate 101 , respectively. The convection channel 2 is opened in the core plate 101 .

[0049] The core board 101 includes a splicing layer 1011, the top of the splicing layer 1011 is connected to the panel 102 via an upper connecting layer 1012, and the bottom of the splicing layer 1011 is connected to the backboard 103 via a lower connecting layer 1013. The splicing layer 1011 is made of a plurality of wooden strips, and a convection channel 2 is formed in the gaps between adjacent wooden strips; the upper connecting layer 1012 and the lower connecting layer 1013 are both wooden boards.

[0050] A reinforcing rib 3 is connected to the middle of the floor body 1 . The reinforcing rib 3 and the convection channels 2 are arranged perpendicular to each other and penetrate each convection channel 2 .

[0051] The convection channel 2 penetrates the floor body 1 along its length direction. The cross-sectional shape of the convection channel 2 is a rhombus. The width and height of the convection channel 2 are both 12 mm.

[0052] This embodiment can increase the wood thickness of the top and bottom layers of the floor through the structural coordination of the upper connecting layer 1012 and the lower connecting layer 1013, so that the structural strength and stability of the floor can be guaranteed after the thickness of the panel 102 and the back panel 103 are reduced. Secondly, by setting the reinforcing ribs 3, the overall structural strength of the floor heating floor can be improved, that is, the strength reduction of the floor heating floor caused by the opening of the convection channel 2 can be alleviated, so that the floor heating floor can achieve the required physical properties.

[0053] Example 4. A floor heating floor based on convection heat transfer, comprising: Figure 6-7 As shown, it includes a floor body 1, and a plurality of convection channels 2 are spaced apart in the middle of the floor body 1, a heating layer 201 is formed at the bottom of the convection channel 2, and a heat-conducting layer 202 is formed at the top of the convection channel 2; the air in the heating layer 201 is heated and flows upward to the heat-conducting layer 202, and heats the top of the floor body 1, thereby realizing the floor heating function.

[0054] The floor body 1 includes a core plate 101 , and a panel 102 and a back plate 103 are connected to the upper and lower sides of the core plate 101 , respectively. The convection channel 2 is opened in the core plate 101 .

[0055] The core board 101 is composed of a plurality of wooden slats, openings are formed between the slats, and adjacent openings are enclosed to form a convection channel 2.

[0056] A plurality of reinforcing ribs 3 are connected to the middle of the floor body 1 , and the interval between adjacent reinforcing ribs 3 is not less than 40 mm. The reinforcing ribs 3 and the convection channels 2 are arranged perpendicular to each other and penetrate each convection channel 2 .

[0057] The convection channel 2 penetrates the floor body 1 along its length direction. The cross-sectional shape of the convection channel 2 is circular, and the diameter of the convection channel 2 is 12 mm.

[0058] Compared with Embodiment 2 and Embodiment 3, this embodiment changes the composite structure of the core plate 101 and the shape of the convection channel 2, and can also achieve the function of air convection heat transfer and improve the applicability of the present invention.

[0059] Example 5. A floor heating floor based on convection heat transfer, comprising: Figure 8-9As shown, it includes a floor body 1, and a plurality of convection channels 2 are spaced apart in the middle of the floor body 1, a heating layer 201 is formed at the bottom of the convection channel 2, and a heat-conducting layer 202 is formed at the top of the convection channel 2; the air in the heating layer 201 is heated and flows upward to the heat-conducting layer 202, and heats the top of the floor body 1, thereby realizing the floor heating function.

[0060] The floor body 1 includes a core board 101 made of fir wood. The upper and lower sides of the core board 101 are respectively connected with a panel 102 and a back board 103 . The panel 102 and the back board 103 are both made of mangosteen wood. The thickness of the panel 102 and the back board 103 is 1 mm. The convection channel 2 is opened in the core board 101 .

[0061] The core board 101 includes a splicing layer 1011, the top of the splicing layer 1011 is connected to the panel 102 via an upper connecting layer 1012, and the bottom of the splicing layer 1011 is connected to the backboard 103 via a lower connecting layer 1013. The splicing layer 1011 is formed by a plurality of wooden strips with rectangular cross-sections distributed at intervals, the width of the wooden strips is 10 mm, and the thickness of the upper connecting layer and the lower connecting layer are both 2.5 mm.

[0062] The convection channel 2 penetrates the floor body 1 along its length direction. The cross-sectional shape of the convection channel 2 is rectangular. The height of the convection channel 2 is 14 mm, and the width of the convection channel 2 is 5 mm.

[0063] A plurality of reinforcing ribs 3 are connected to the middle of the floor body 1 . The reinforcing ribs 3 are circular in shape and have a diameter of 8 mm. The spacing between adjacent reinforcing ribs 3 is 60 mm. The reinforcing ribs 3 and the convection channels 2 are arranged perpendicular to each other and penetrate each convection channel 2 .

[0064] This embodiment specifically defines the structure and related dimensions of the floor heating floor, so that it is possible to significantly improve its thermal conductivity while ensuring the structural strength of the floor.

[0065] Experimental Example 1: In this experimental example, the floor of Example 5 is used as a sample, and the sample is tested in accordance with the testing standard of GB / T18103-2022 "Solid Wood Composite Flooring". The static bending strength of the sample is measured to be greater than 30.0MPa, and the elastic modulus is greater than 4000MPa, which means that the floor heating floor of the present invention can meet the national performance requirements for solid wood composite flooring after opening the convection channel.

[0066] Experimental Example 2: This embodiment uses the floor of Example 5 as sample 1, and sets samples 2, 3 and 4 respectively, wherein sample 2 does not have a convection channel, and the rest of the structure and material are consistent with the floor heating floor of Example 5; the height of the convection channel of sample 3 is 8mm, the width of the convection channel is 5mm, and the rest of the structure and material are consistent with the floor heating floor of Example 5; sample 4 does not have a convection channel, and the rest of the structure and material are consistent with the floor heating floor of sample 3. That is, the total thickness of sample 1 and sample 2 is the same, the total thickness of sample 3 and sample 4 is the same, and the thickness of sample 3 is 6mm less than that of sample 1. Then, the thermal conductivity efficiency of the four groups of samples was tested according to the test standard of LY / T 1700-2018 "Wooden Floors for Floor Heating".

[0067] After testing, it was found that the thermal conductivity of sample one was 11.54, the thermal conductivity of sample two was 10.27, the thermal conductivity of sample three was 10.76, and the thermal conductivity of sample four was 10.82. It can be seen from the test results that the thermal conductivity of sample one is 12% higher than that of sample two, indicating that the present invention can effectively improve the thermal efficiency of floor heating floors by limiting the structure of the convection channel. The thermal conductivity of sample three is lower than that of sample one, and is slightly weakened relative to that of sample four, indicating that when the height of the convection channel is too small, the fluid viscosity between the air and the wood will cause the air to be unable to flow effectively, and the thermal conductivity of the air is worse than that of the wood in an obstructed state, thereby reducing the overall thermal conductivity of the floor.

Claims

1. A rapid heat conduction method for floor heating, characterized in that: The following steps are involved: ① Open a convection channel for air flow in the middle of the wooden floor; ② Laying a wooden floor on the top of the heating mechanism, and the heating mechanism heats the bottom of the wooden floor, thereby heating the air at the bottom of the convection channel through heat transfer at the bottom of the wooden floor; ③ The air at the bottom of the convection channel flows upward to the top of the convection channel after being heated, and the low-temperature air at the top of the convection channel flows to the bottom of the convection channel; ④ After the hot air flows to the top of the convection channel, it heats the top of the wooden floor to achieve the floor heating function.

2. Floor heating based on convection heat transfer, characterized by: The invention comprises a floor body (1), wherein a plurality of convection channels (2) are spaced apart in the middle of the floor body (1), a heating layer (201) is formed at the bottom of the convection channel (2), and a heat conduction layer (202) is formed at the top of the convection channel (2); after being heated, the air in the heating layer (201) flows upward to the heat conduction layer (202) and heats the top of the floor body (1), thereby realizing a floor heating function.

3. The floor heating floor based on convection heat transfer according to claim 2 is characterized in that: The floor body (1) comprises a core plate (101), the upper and lower sides of the core plate (101) are respectively connected to a face plate (102) and a back plate (103), and the convection channel (2) is opened in the core plate (101).

4. The floor heating floor based on convection heat transfer according to claim 3 is characterized in that: The core board (101) is formed by splicing a plurality of wooden strips, and the gaps between adjacent wooden strips form convection channels (2).

5. The floor heating floor based on convection heat transfer according to claim 3 is characterized in that: The core board (101) comprises a splicing layer (1011), the top of the splicing layer (1011) is connected to the panel (102) via an upper connecting layer (1012), and the bottom of the splicing layer (1011) is connected to the backboard (103) via a lower connecting layer (1013), and the splicing layer (1011) is formed by splicing a plurality of wood strips, and a convection channel (2) is formed at the gap between adjacent wood strips.

6. The floor heating floor based on convection heat transfer according to claim 2 is characterized in that: A reinforcing rib (3) is connected to the middle of the floor body (1); the reinforcing rib (3) and the convection channels (2) are arranged perpendicular to each other and penetrate each convection channel (2).

7. The floor heating floor based on convection heat transfer according to claim 2 is characterized in that: The convection channel (2) penetrates the floor body (1) along its length direction; the cross-sectional shape of the convection channel (2) is circular, rectangular or regular polygonal; the height of the convection channel (2) is not less than 10 mm; and the width of the convection channel (2) is not less than 5 mm.

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