CN212132589U - Anti-scaling oxygen-blocking PE-RT geothermal pipe - Google Patents
Anti-scaling oxygen-blocking PE-RT geothermal pipe Download PDFInfo
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- CN212132589U CN212132589U CN202020383557.9U CN202020383557U CN212132589U CN 212132589 U CN212132589 U CN 212132589U CN 202020383557 U CN202020383557 U CN 202020383557U CN 212132589 U CN212132589 U CN 212132589U
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- 239000010410 layer Substances 0.000 claims abstract description 351
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 54
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000001301 oxygen Substances 0.000 claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 32
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims abstract description 18
- 239000011241 protective layer Substances 0.000 claims abstract description 17
- 230000002265 prevention Effects 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims description 129
- 239000002184 metal Substances 0.000 claims description 129
- 239000002245 particle Substances 0.000 claims description 16
- 239000004952 Polyamide Substances 0.000 claims description 11
- 229920002647 polyamide Polymers 0.000 claims description 11
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical group C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims description 8
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 3
- 230000003115 biocidal effect Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 14
- 239000004831 Hot glue Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 229920005630 polypropylene random copolymer Polymers 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
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Abstract
An anti-scaling oxygen-blocking PE-RT geothermal pipe. Relates to the field of pipe manufacturing, including scale prevention layers; an antibacterial layer, a PE-RT layer, a reinforcing layer, an oxygen barrier layer and a protective layer which are fixed on the scale prevention layer are sleeved in sequence from inside to outside; the heat conduction layers are arranged in the geothermal pipe, are uniformly distributed along the length direction of the geothermal pipe, and are uniformly distributed along the circumferential direction of the geothermal pipe. The utility model discloses a composition design of antiscaling layer, antibiotic layer, PE-RT layer, enhancement layer, oxygen barrier layer, protective layer, heat conduction layer can improve the antiscaling performance of tubular product, hinder oxygen performance, antibacterial property, the reinforcing is toughened, creep resistance performance and shock resistance, has high temperature resistant, high pressure resistant, resistant high impact, long service life, stable in structure's advantage.
Description
Technical Field
The utility model relates to a technical field is made to tubular product, concretely relates to scale control hinders oxygen PE-RT geothermal pipe.
Background
With the development and progress of science and technology, various geothermal pipes are applied to heating systems, wherein a PE-RT geothermal pipe serving as a new generation of special heating pipe becomes one of the main pipes used in the heating systems, and the PE-RT geothermal pipe is a special heating pipe which is developed by taking PE-RT (polyethylene with high temperature resistance) as a raw material.
At present, the existing PE-RT geothermal pipe has the problems that the existing PE-RT geothermal pipe is easy to corrode, dirt is easy to grow on the inner wall of the pipe, the outer wall of the existing PE-RT geothermal pipe is easy to damage, and the heat conductivity of the existing PE-RT geothermal pipe is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anti-scaling oxygen-blocking PE-RT geothermal pipe, which solves the problems that the existing PE-RT geothermal pipe is easy to corrode, the inner wall of the pipe is easy to breed dirt, the outer wall is easy to be damaged and the heat conductivity of the pipe is low.
The utility model discloses a solve the technical scheme that technical problem adopted as follows:
the utility model discloses an oxygen PE-RT geothermal pipe is hindered in scale control, include:
an anti-scaling layer;
an antibacterial layer, a PE-RT layer, a reinforcing layer, an oxygen barrier layer and a protective layer which are fixed on the scale prevention layer are sleeved in sequence from inside to outside;
the heat conduction layers are arranged in the geothermal pipe, are uniformly distributed along the length direction of the geothermal pipe, and are uniformly distributed along the circumferential direction of the geothermal pipe.
Further, the thickness ratio among the scale prevention layer, the antibacterial layer, the PE-RT layer, the reinforcing layer, the oxygen barrier layer and the protective layer is as follows: 1:3:1.5:0.9:1:2.
Furthermore, the antibacterial layer is composed of a three-layer structure, wherein the inner layer is a first antibacterial mother particle layer, the middle layer is a nano-silver antibacterial layer, and the outer layer is a second antibacterial mother particle layer.
Further, the thickness ratio of the first antibacterial mother particle layer, the nano-silver antibacterial layer and the second antibacterial mother particle layer is as follows: 1:1:1.
Furthermore, the oxygen barrier layer is composed of a three-layer structure, wherein the inner layer is an EVOH layer, the middle layer is an alkali-free glass fiber layer, and the outer layer is a polyamide copolymer layer.
Further, the thickness ratio among the EVOH layer, the alkali-free glass fiber layer and the polyamide copolymer layer is as follows: 1:2:3.
Further, the heat conductive layer includes a first metal layer, a second metal layer, a third metal layer, and a fourth metal layer; the left end face of the first metal layer, the upper end face of the second metal layer, the lower end face of the second metal layer, the left end face of the third metal layer, the right end face of the third metal layer, the lower end face of the fourth metal layer, the upper end face of the fourth metal layer and the right end face of the first metal layer are fixed in sequence;
the first metal layer is arranged in the protective layer, the inner surface of the first metal layer is connected with the outer surface of the polyamide copolymer layer of the oxygen-blocking layer, the third metal layer is arranged in the center of the antibacterial layer, the second metal layer sequentially penetrates through the antibacterial layer, the PE-RT layer, the reinforcing layer and the oxygen-blocking layer from inside to outside, and the fourth metal layer sequentially penetrates through the antibacterial layer, the PE-RT layer, the reinforcing layer and the oxygen-blocking layer from inside to outside.
Further, the thicknesses of the first metal layer, the second metal layer, the third metal layer and the fourth metal layer are the same; the lengths of the first metal layer, the second metal layer, the third metal layer and the fourth metal layer are the same, and the width of the first metal layer is larger than that of the third metal layer; the width of the second metal layer is equal to that of the fourth metal layer; the cross section of the first metal layer and the cross section of the third metal layer are both inwards concave arcs; the cross-sectional length of the first metal layer is greater than the cross-sectional length of the third metal layer; the cross section of the second metal layer and the cross section of the fourth metal layer are both rectangular.
Furthermore, the first metal layer, the second metal layer, the third metal layer and the fourth metal layer are all made of the same metal material.
Further, the anti-scale layer is made of PE materials; the reinforcing layer is prepared from an NFPP-RCT (NF beta crystal form PP-R) material; the protective layer is made of PPR material.
The utility model has the advantages that:
the utility model discloses a composition design of antiscaling layer, antibiotic layer, PE-RT layer, enhancement layer, oxygen barrier layer, protective layer, heat conduction layer can improve the antiscaling performance of tubular product, hinder oxygen performance, antibacterial property, the reinforcing is toughened, creep resistance performance and shock resistance, has high temperature resistant, high pressure resistant, resistant high impact, long service life, stable in structure's advantage.
The utility model discloses a design three-layer hinders the oxygen layer, hinders the oxygen layer promptly and comprises three layer construction, and the inlayer is the EVOH layer, and the intermediate level is alkali-free glass fiber layer, and the skin is polyamide copolymer layer. The thickness ratio of the EVOH layer, the alkali-free glass fiber layer and the polyamide copolymer layer is as follows: 1:2:3, can block the oxidation reaction between the interior and the exterior of the pipe, and can inhibit the bacterial breeding and the existence of microorganisms to the maximum extent.
The utility model discloses a design the antibiotic layer of three-layer, antibiotic layer comprises three layer construction promptly, and the inlayer is first antibiotic mother particle layer, and the intermediate level is the antibiotic layer of nanometer silver, the outer antibiotic mother particle layer of second that is. The thickness ratio among the first antibacterial mother particle layer, the nano-silver antibacterial layer and the second antibacterial mother particle layer is as follows: 1:1:1. The antibacterial layer consisting of the three antibacterial materials ensures that the pipe has the best antibacterial effect, and improves the antibacterial performance of the pipe.
Drawings
FIG. 1 is a schematic structural view of the anti-scaling and oxygen-blocking PE-RT geothermal pipe of the present invention.
Fig. 2 is a sectional view taken along a-a in fig. 1.
Fig. 3 is a schematic structural view of the antibiotic layer.
Fig. 4 is a schematic structural view of the oxygen barrier layer.
Fig. 5 is a schematic structural view of a heat conductive layer.
In the figure, 1, an anti-scaling layer, 2, an antibacterial layer, 3, a PE-RT layer, 4, a reinforcing layer, 5, an oxygen barrier layer, 6, a protective layer, 7 and a heat conduction layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in FIG. 1 to FIG. 5, the utility model discloses a PE-RT geothermal pipe with scale prevention and oxygen resistance mainly includes: the scale prevention layer 1, the antibacterial layer 2, the PE-RT layer 3, the reinforcing layer 4, the oxygen barrier layer 5, the protective layer 6 and the heat conduction layer 7.
The antibacterial layer 2, the PE-RT layer 3, the reinforcing layer 4, the oxygen barrier layer 5 and the protective layer 6 are sequentially sleeved and fixed on the scale prevention layer 1 from inside to outside. The scale prevention layer 1 and the antibacterial layer 2 are fixed by hot melt adhesive, the antibacterial layer 2 and the PE-RT layer 3 are fixed by hot melt adhesive, the PE-RT layer 3 and the reinforcing layer 4 are fixed by hot melt adhesive, the reinforcing layer 4 and the oxygen blocking layer 5 are fixed by hot melt adhesive, and the oxygen blocking layer 5 and the protective layer 6 are fixed by hot melt adhesive.
Wherein, the thickness ratio among the antiscale layer 1, the antibacterial layer 2, the PE-RT layer 3, the reinforcing layer 4, the oxygen barrier layer 5 and the protective layer 6 is as follows: 1:3:1.5:0.9:1:2.
The innermost layer is the scale prevention layer 1, the scale prevention layer 1 is made of PE materials, the PE materials have the advantages of being high in strength, high-temperature resistant, corrosion resistant, non-toxic, wear resistant, capable of preventing rusting and the like, and the smooth surface of the innermost layer of the geothermal pipe is made of the PE materials, so that the inner wall of the geothermal pipe can have a good scale prevention effect.
The structure of the antibacterial layer 2 is shown in fig. 3, the antibacterial layer 2 is composed of three layers, the inner layer is a first antibacterial mother particle layer 201, the middle layer is a nano silver antibacterial layer 202, and the outer layer is a second antibacterial mother particle layer 201. The thickness ratio among the first antibacterial mother particle layer 201, the nano-silver antibacterial layer 202 and the second antibacterial mother particle layer 201 is as follows: 1:1:1. The antibacterial layer 2 consisting of the three antibacterial materials ensures that the pipe has the best antibacterial effect.
Wherein, the PE-RT layer 3 is prepared by adopting a PE-RT material.
Wherein, the reinforcing layer 4 is prepared by NFPP-RCT (NF beta crystal form PP-R) material. The material is compounded by three layers of materials, the inner layer and the outer layer are both modified beta crystal form random copolymerization polypropylene (beta PP-R), the material has weather-resistant and impact-resistant functions, the middle layer is a reinforced and toughened oxygen barrier layer compounded by the beta PP-R and a nano material, the high temperature resistance of the pipe is improved, and the defects of short service life, low thermal deformation temperature and unstable size of the pipe in high-temperature creep are overcome.
The structure of the oxygen barrier layer 5 is shown in fig. 4, the oxygen barrier layer 5 is composed of three layers, the inner layer is an EVOH layer 501, the middle layer is an alkali-free glass fiber layer 502, and the outer layer is a polyamide copolymer layer 503. The thickness ratio among the EVOH layer 501, the alkali-free glass fiber layer 502, and the polyamide copolymer layer 503 is: 1:2:3.
Wherein, the protective layer 6 is made of PPR material. The PPR is the polypropylene random copolymer, has the advantages of good toughness, high strength, excellent processing performance, good creep resistance at higher temperature and strong impact resistance, and has high temperature resistance, high pressure resistance and high impact resistance.
As shown in fig. 5, the heat conductive layer 7 has a through hole in the middle, and includes a first metal layer 701, a second metal layer 702, a third metal layer 703, and a fourth metal layer 704. The heat conductive layer 7 is integrally formed. The first metal layer 701, the second metal layer 702, the third metal layer 703 and the fourth metal layer 704 are connected end to end, and specifically, a left end face of the first metal layer 701, an upper end face of the second metal layer 702, a lower end face of the second metal layer 702, a left end face of the third metal layer 703, a right end face of the third metal layer 703, a lower end face of the fourth metal layer 704, an upper end face of the fourth metal layer 704 and a right end face of the first metal layer 701 are fixed in sequence.
The thicknesses of the first metal layer 701, the second metal layer 702, the third metal layer 703 and the fourth metal layer 704 are the same, and the lengths of the first metal layer 701, the second metal layer 702, the third metal layer 703 and the fourth metal layer 704 are the same.
The width of first metal layer 701 is greater than the width of third metal layer 703.
The width of second metal layer 702 is equal to the width of fourth metal layer 704.
A cross-section 706 of second metal layer 702 and a cross-section 708 of fourth metal layer 704 are both rectangular.
The first metal layer 701, the second metal layer 702, the third metal layer 703 and the fourth metal layer 704 are made of the same metal material.
As shown in fig. 1 and 2, a plurality of heat conductive layers 7 are provided inside the tube. The plurality of heat conductive layers 7 are uniformly distributed along the length direction of the tube, the plurality of heat conductive layers 7 are uniformly distributed along the circumferential direction of the tube, and preferably, four heat conductive layers 7 are uniformly distributed along the circumferential direction of the tube. The first metal layer 701 is arranged in the protective layer 6, the inner surface of the first metal layer 701 is connected with the outer surface of the polyamide copolymer layer 503 of the oxygen barrier layer 5, the third metal layer 703 is arranged in the center of the antibacterial layer 2, the upper end surface of the second metal layer 702 is connected with the left end surface of the first metal layer 701, the lower end surface of the second metal layer 702 is connected with the left end surface of the third metal layer 703, and the second metal layer 702 sequentially penetrates through the antibacterial layer 2, the PE-RT layer 3, the reinforcing layer 4 and the oxygen barrier layer 5 from inside to outside. The upper end face of the fourth metal layer 704 is connected with the right end face of the first metal layer 701, the lower end face of the fourth metal layer 704 is connected with the right end face of the third metal layer 703, and the fourth metal layer 704 penetrates through the antibacterial layer 2, the PE-RT layer 3, the reinforcing layer 4 and the oxygen barrier layer 5 from inside to outside. The heat in the pipe can be conducted through the heat conducting layer 7, and the heat conductivity of the geothermal pipe is increased.
The utility model discloses an oxygen PE-RT geothermal pipe is hindered in scale control, its each performance data as follows:
| performance of | Existing geothermal pipe | This application |
| Oxygen permeability | 0.15g/(d·m)3 | 0.03g/(d·m)3 |
| Tensile strength | ≥16Mpa | ≥25Mpa |
| Coefficient of thermal conductivity | 0.40(w/mk) | 0.45(w/mk) |
| Hydrostatic strength | 8.5Mpa | 11.5Mpa |
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An anti-scaling and oxygen-blocking PE-RT geothermal pipe is characterized by comprising:
an anti-scaling layer;
an antibacterial layer, a PE-RT layer, a reinforcing layer, an oxygen barrier layer and a protective layer which are fixed on the scale prevention layer are sleeved in sequence from inside to outside;
the heat conduction layers are arranged in the geothermal pipe, are uniformly distributed along the length direction of the geothermal pipe, and are uniformly distributed along the circumferential direction of the geothermal pipe.
2. The PE-RT geothermal pipe with scale and oxygen prevention and control functions according to claim 1, wherein the thickness ratio of the scale prevention layer, the antibacterial layer, the PE-RT layer, the reinforcing layer, the oxygen prevention layer and the protective layer is as follows: 1:3:1.5:0.9:1:2.
3. The PE-RT geothermal pipe according to claim 1, wherein the antibacterial layer is composed of three layers, the inner layer is a first antibacterial mother particle layer, the middle layer is a nano silver antibacterial layer, and the outer layer is a second antibacterial mother particle layer.
4. An anti-scaling and oxygen-blocking PE-RT geothermal pipe according to claim 3, wherein the thickness ratio among the first antibacterial mother particle layer, the nano-silver antibacterial layer and the second antibacterial mother particle layer is as follows: 1:1:1.
5. An anti-scaling and oxygen-barrier PE-RT geothermal pipe according to claim 1, characterized in that the oxygen-barrier layer is composed of three layers, the inner layer is EVOH layer, the middle layer is alkali-free glass fiber layer, and the outer layer is polyamide copolymer layer.
6. An anti-scaling and oxygen-barrier PE-RT geothermal pipe according to claim 5, wherein the thickness ratio of the EVOH layer, the alkali-free glass fiber layer and the polyamide copolymer layer is: 1:2:3.
7. A scale and oxygen resistant PE-RT geothermal pipe according to claim 1, wherein the heat conducting layer comprises a first metal layer, a second metal layer, a third metal layer, a fourth metal layer; the left end face of the first metal layer, the upper end face of the second metal layer, the lower end face of the second metal layer, the left end face of the third metal layer, the right end face of the third metal layer, the lower end face of the fourth metal layer, the upper end face of the fourth metal layer and the right end face of the first metal layer are fixed in sequence;
the first metal layer is arranged in the protective layer, the inner surface of the first metal layer is connected with the outer surface of the polyamide copolymer layer of the oxygen-blocking layer, the third metal layer is arranged in the center of the antibacterial layer, the second metal layer sequentially penetrates through the antibacterial layer, the PE-RT layer, the reinforcing layer and the oxygen-blocking layer from inside to outside, and the fourth metal layer sequentially penetrates through the antibacterial layer, the PE-RT layer, the reinforcing layer and the oxygen-blocking layer from inside to outside.
8. The anti-scaling and oxygen-blocking PE-RT geothermal pipe according to claim 7, wherein the thicknesses of the first metal layer, the second metal layer, the third metal layer and the fourth metal layer are the same; the lengths of the first metal layer, the second metal layer, the third metal layer and the fourth metal layer are the same, and the width of the first metal layer is larger than that of the third metal layer; the width of the second metal layer is equal to that of the fourth metal layer; the cross section of the first metal layer and the cross section of the third metal layer are both inwards concave arcs; the cross-sectional length of the first metal layer is greater than the cross-sectional length of the third metal layer; the cross section of the second metal layer and the cross section of the fourth metal layer are both rectangular.
9. An anti-scaling and oxygen-blocking PE-RT geothermal pipe according to claim 7 or 8, characterized in that the first metal layer, the second metal layer, the third metal layer and the fourth metal layer are all made of the same metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020383557.9U CN212132589U (en) | 2020-03-24 | 2020-03-24 | Anti-scaling oxygen-blocking PE-RT geothermal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020383557.9U CN212132589U (en) | 2020-03-24 | 2020-03-24 | Anti-scaling oxygen-blocking PE-RT geothermal pipe |
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| Publication Number | Publication Date |
|---|---|
| CN212132589U true CN212132589U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020383557.9U Expired - Fee Related CN212132589U (en) | 2020-03-24 | 2020-03-24 | Anti-scaling oxygen-blocking PE-RT geothermal pipe |
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| Country | Link |
|---|---|
| CN (1) | CN212132589U (en) |
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2020
- 2020-03-24 CN CN202020383557.9U patent/CN212132589U/en not_active Expired - Fee Related
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Granted publication date: 20201211 |