Floor heating pipe with flow guide ribs

Abstract

The utility model discloses a floor heating pipe with a flow guide rib, which comprises a pipe body and the flow guide rib, the flow guide rib is fixedly connected to the pipe wall of the pipe body and extends spirally, the flow guide rib is composed of a plurality of sections, a gap is formed between every two adjacent sections, the width of each gap is 0.7-1.2 mm, the inner diameter of the pipe body is d, and the height of each section is h, 5% lt. H / dlt; and 15%. The utility model provides a floor heating pipe with flow guide ribs, which is convenient to bend, and the flow guide ribs are not easy to crack during bending.

Description

TECHNICAL FIELD

[0001] The utility model relates to a floor heating system pipe technology field especially relates to a floor heating pipe with flow guide rib. BACKGROUND

[0002] Floor heating pipe is used for conveying hot water in the floor heating system, and the existing floor heating pipe is prone to scale formation on the pipe wall after long time use, thereby affecting the heating performance of the floor heating.

[0003] The existing patent with the application number CN201620391255.X proposes a high-heat-dissipation anti-blocking floor heating pipe, which is provided with an inner spiral wall in the floor heating pipe body to improve heat dissipation and reduce scale. Although the above-mentioned floor heating pipe has the above-mentioned advantages, the inner spiral wall is provided longitudinally, which leads to an increase in the overall rigidity of the floor heating pipe, and the floor heating pipe is difficult to bend during laying. Forced bending may easily lead to stress concentration and cracking of the inner spiral wall, and the formed fragments may wander in the floor heating system, affecting the stability of the floor heating system. SUMMARY

[0004] The utility model discloses to solve the defects that the existing floor heating pipe is not easy to bend and is easy to damage when bending, and proposes a floor heating pipe with flow guide rib, which is convenient to bend and the flow guide rib is not easy to crack when bending.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A floor heating pipe with flow guide rib, comprising a pipe body and a flow guide rib, the flow guide rib is fixedly connected to the pipe wall of the pipe body and spirally extends, the flow guide rib is composed of a plurality of segments, a gap is formed between adjacent segments, the width of the gap is 0.7-1.2mm, the inner diameter of the pipe body is d, the height of the segment is h, and 5% <h / d <15%.

[0007] Through the above-mentioned setting, first, the flow guide rib is designed in a segmented manner to form a gap, the floor heating pipe is more easy to bend, the gap is contracted during bending, the stress of each segment of the flow guide rib is reduced, thereby preventing the flow guide rib from cracking; second, the height of the segment is adapted to the inner diameter of the pipe body, and the pressure loss and scale prevention efficiency are considered.

[0008] Further, the material of the flow guide rib is TPU.

[0009] Through the above-mentioned setting, the possibility of cracking of the flow guide rib is further reduced.

[0010] Further, the length of the segment in the axial direction of the pipe body is 30-50mm.

[0011] Further, the outer diameter of the pipe body is 20mm.

[0012] Further, the flow guide rib is provided with three, annular array around the axis of the pipe body.

[0013] Further, h / d=7.5%.

[0014] Further, the pipe body comprises PERT inner tube layer, EVOH oxygen barrier layer and PERT outer tube layer arranged from inside to outside, and the flow guide rib is fixedly connected to the inner wall of the PERT inner tube layer.

[0015] Through the above setting, the oxygen barrier effect of the pipe body is increased, so as to prevent external oxygen from penetrating into hot water, prevent microorganisms from breeding in hot water, and further reduce the generation of biological sludge on the pipe wall. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the floor heating pipe of the embodiment.

[0017] Figure 2 It is a sectional view of the floor heating pipe of the embodiment.

[0018] Figure 3 It is an enlarged view of A of Figure 2 DETAILED DESCRIPTION

[0019] The technical scheme of the present application will be further specifically described below by means of embodiments and in combination with the drawings.

[0020] As Figures 1 to 3 A floor heating pipe with flow guide ribs, comprising a pipe body 3 and a flow guide rib 4, the flow guide rib 4 is fixedly connected to the pipe wall of the pipe body 3 and extends spirally, the flow guide rib 4 is composed of a plurality of segments 41, the gap 5 is formed between adjacent segments 41, the width w of the gap 5 is 0.7-1.2mm, the inner diameter of the pipe body 3 is d, the height of the segment 41 is h, and 5% <h / d <15%.

[0021] Through the above setting, first, the flow guide rib 4 adopts segmented design to form the gap 5, the floor heating pipe is more flexible, the gap 5 is contracted when bending, the stress of each segment 41 of the flow guide rib 4 is reduced, so as to prevent the flow guide rib 4 from cracking; second, the height of the segment 41 is matched with the inner diameter of the pipe body 3, and the pressure loss and the scale prevention efficiency are considered.

[0022] ​The pipe body 3 of the present application can refer to existing ordinary floor heating pipes. Its outer diameter is divided into three types: 16mm, 25mm, and 20mm. The larger the outer diameter of the pipe body 3, the better the heating effect. The outer diameter of the pipe body 3 of the present application is specifically 20mm, which balances the flow resistance, heating effect, and flexibility, and is suitable for most house types. The floor heating pipe of the present application is provided with spiral guide ribs 4 on the inner side. When hot water passes through the pipe body 3, the hot water forms periodic eddies to scour the pipe wall, making it difficult for water scale to adhere to the pipe wall, thereby reducing the scaling rate, reducing water scale, and improving the heating performance of the floor heating system. The guide ribs 4 of the present application are arranged in a segmented manner, and gaps 5 are formed between multiple segments 41. The width of the gap 5 is 0.7 - 1.2mm. The gap 5 is generally small and does not affect the formation of eddies. The gap 5 of the present application is specifically 1mm. The segmented arrangement of the guide ribs 4 facilitates the bending of the floor heating pipe during laying. When the floor heating pipe is bent, the gap 5 at the inner circumference of the bent part decreases, and the gap 5 at the outer circumference increases, adapting to the bending of the floor heating pipe, effectively reducing the stress of the guide ribs 4, and preventing the guide ribs 4 from cracking. The wall thickness of the pipe body 3 is 2mm, and the inner diameter d is 16mm. According to the relationship between the height of the segment 41 and the inner diameter of the pipe body 3, the height of the segment 41 is determined as: 0.8mm < h < 2.4mm. The greater the height of the segment 41, the better the scale removal effect, but the greater the pressure loss. On the contrary, the smaller the height of the segment 41, the worse the scale removal effect, and the smaller the pressure loss. The height h of the segment 41 of the present application is specifically 1.2mm, that is, h / d = 7.5%, taking into account both the pressure loss and the scale removal effect.

[0023] As an implementation method, the material of the guide rib 4 is TPU.

[0024] Through the above settings, the possibility of the guide rib 4 cracking is further reduced.

[0025] The TPU material has good elasticity. After the floor heating pipe is bent, the guide rib 4 bends with the pipe body 3. Due to the good elasticity of the TPU material, the guide rib 4 will not crack.

[0026] As an implementation method, the length of the segment 41 in the axial direction of the pipe body 3 is 30 - 50mm.

[0027] The shorter the length of the segment 41, the more the number of segments 41 in the pipe body 3 per unit length, increasing the processing difficulty; the longer the length of the segment 41, although the processing difficulty of the floor heating pipe is reduced, when the floor heating pipe is bent, the stress of the guide rib 4 will increase, increasing the cracking risk. The length of the segment 41 of the present application in the axial direction of the pipe body 3 is specifically 40mm, taking into account both the processing difficulty and the cracking risk.

[0028] As an implementation method, the outer diameter of the pipe body 3 is 20mm.

[0029] As an implementation form, the guide ribs 4 are arranged in three annular arrays around the axis of the pipe body 3.

[0030] As an implementation form, h / d=7.5%.

[0031] As an implementation form, the pipe body 3 comprises a PERT inner pipe layer 31, an EVOH oxygen barrier layer 32 and a PERT outer pipe layer 33 arranged in sequence from inside to outside, and the guide ribs 4 are fixedly connected to the inner wall of the PERT inner pipe layer 31.

[0032] Through the above arrangement, the oxygen barrier effect of the pipe body 3 is increased, so as to prevent external oxygen from permeating into hot water, prevent microorganisms from breeding in hot water, and further reduce the generation of biological sludge on the pipe wall.

[0033] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. A type of underfloor heating pipe with guide ribs, characterized in that, The device includes a pipe body and flow guide ribs. The flow guide ribs are fixedly connected to the pipe wall of the pipe body and extend spirally. Each flow guide rib consists of several segments, with gaps formed between adjacent segments. The width of the gaps is 0.7-1.2 mm. The inner diameter of the pipe body is d, and the height of each segment is h. 5% <h / d<15%。 2. The underfloor heating pipe with guide ribs according to claim 1, characterized in that, The guide ribs are made of TPU.

3. The underfloor heating pipe with guide ribs according to claim 1, characterized in that, The length of the segment along the axial direction of the pipe body is 30-50 mm.

4. A floor heating pipe with guide ribs according to claim 1, characterized in that, The outer diameter of the pipe body is 20mm.

5. A floor heating pipe with guide ribs according to claim 1, characterized in that, The guide ribs are provided in three lines, arranged in a ring array around the axis of the pipe body.

6. A floor heating pipe with guide ribs according to claim 1, characterized in that, The h / d ratio is 7.5%.

7. A floor heating pipe with guide ribs according to claim 1, characterized in that, The pipe body includes a PERT inner tube layer, an EVOH oxygen barrier layer and a PERT outer tube layer arranged sequentially from the inside to the outside, and the flow guide rib is fixedly connected to the inner wall of the PERT inner tube layer.

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