CN209800894U - composite air conditioner hose for conveying novel environment-friendly refrigerant - Google Patents
composite air conditioner hose for conveying novel environment-friendly refrigerant Download PDFInfo
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- CN209800894U CN209800894U CN201821772142.XU CN201821772142U CN209800894U CN 209800894 U CN209800894 U CN 209800894U CN 201821772142 U CN201821772142 U CN 201821772142U CN 209800894 U CN209800894 U CN 209800894U
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Abstract
The utility model discloses a composite air-conditioning hose for conveying novel environment-friendly refrigerant, which comprises an inner-layer fluoroplastic gas barrier layer, at least one reinforcing layer arranged outside the fluoroplastic gas barrier layer, and/or a high-temperature-resistant rubber layer arranged outside the reinforcing layer; or at least one high-temperature resistant rubber layer arranged on the outer side of the fluoroplastic gas barrier layer and a reinforcing layer arranged on the outer side of the high-temperature resistant rubber layer. The fluoroplastic is stable in material performance at the temperature of-50-180 ℃, damage caused by explosive decompression of carbon dioxide can be avoided, and excellent performance stability of the hose is maintained. The high-modulus reinforced layer can keep low expansion of the hose and stably convey the refrigerant. The utility model discloses the hose has excellent comprehensive properties such as resistant permeability, resistant high low temperature, bending resistance, low inflation, anti vibration and pulse absorptivity are better, high anti refrigerant infiltration's ability and prevent effectively that the refrigerant from providing reliable guarantee in the operation of coupling and hose connection for air conditioning system stable for a long time.
Description
Technical Field
The utility model relates to an air conditioner pipe, in particular to carry compound air conditioner hose of novel environmental protection refrigerant.
Background
At present, the refrigeration media such as fluorocarbon, chlorofluorocarbon and the like used by air-conditioning refrigeration systems of automobiles, families and the like have the following working conditions that: the temperature is minus 40 ℃ to 100 ℃, and the pressure is 0MPa to 3.5MPa, so that the polyamide (nylon) alloy is selected as the structure of the barrier layer. The existing refrigerant R134a has high greenhouse effect index GWP value and can decompose harmful substances, so R134a becomes one of the main controlled substances of the Bulgarian amendments of Montreal protocol and is prohibited from being used. Carbon dioxide is a natural refrigerant, has the GWP of 1 and the ozone coefficient of 0, has good environmental friendliness, and has low toxicity, no flammability and low price, so the problem of replacing working media by the refrigerant can be fundamentally solved when the carbon dioxide is used in an air conditioner.
After using the new refrigerant carbon dioxide, the air conditioning system has changed greatly, the working environment of the hose conveying the refrigerant has also changed greatly, mainly show as: (1) the system pressure is high, and the using pressure is 0-17 MPa; (2) the system temperature is high, and the use temperature range is-50 ℃ to 180 ℃; (3) the leakage amount is small, and the leakage amount of the hose is required to be less than 0.3 g/year; (4) the expansion of the hose is low, so that the pressure drop of the refrigerant in the conveying process is avoided; (5) the device is connected to the inlet and the outlet of the compressor and has a complex vibration and pulse environment; (6) the carbon dioxide refrigerant has the characteristic of explosive decompression, and the interior of the hose cannot be in direct contact with rubber; (7) new types of compressor oils require hoses with excellent media resistance. The existing air-conditioning hose cannot meet the use requirement of a novel refrigerant, and a hose with a new structure must be developed.
The Chinese patent application (CN101782169A) discloses a THV fluorine material air-conditioning pipe for conveying a novel environment-friendly refrigerant, wherein a THV thermoplastic elastomer is selected as a barrier layer, but the THV has low melting point and softening point, when the temperature of a hose reaches 165 ℃, the THV flows, and the THV fluorine material air-conditioning pipe does not have the function of blocking and shielding gas any more, so the THV fluorine material air-conditioning pipe has no practical use value; in addition, the use temperature of the rubbers CIIR, EPDM and ECO selected by the THV fluorine material air-conditioning pipe does not exceed 165 ℃, and when the working temperature of the hose reaches 165 ℃, the performance of the rubber is greatly attenuated, and the THV fluorine material air-conditioning pipe does not have use value. Therefore, the THV fluorine material air conditioning pipe is designed based on the existing R134a system and does not meet the requirements of a novel air conditioning and refrigerating system.
Chinese patent application (CN101706024A) discloses a novel refrigerant carbon dioxide air conditioning system hose, wherein PA11 is selected as a structure of a barrier layer, the use temperature of the PA11 is-40-120 ℃ due to the characteristics of the molecular structure, when the normal working temperature of a carbon dioxide system reaches 160 ℃, the barrier layer can be obviously softened and deformed, carbon dioxide gas molecules rapidly permeate into the PA11 layer, and the leakage rate of the system is larger; in addition, when the system stops working, the pressure in the hose is rapidly reduced, carbon dioxide molecules permeating into the barrier shielding layer are rapidly volatilized, explosive decompression occurs, and the hose is broken. The design can not meet the requirements of high temperature 165 ℃ and pressure 17MPa, and can not meet the requirements of actual use. Similarly, chinese patent application (CN105423008A) discloses an R744 air-conditioning hose, which uses a nylon (PA) -polyvinyl alcohol-nylon three-layer composite method to reduce permeability, but PA cannot be applied to a high temperature environment of 165 ℃.
Chinese patent application (CN108317343A) discloses an R744 air-conditioning pipe and its connection structure, wherein a stainless steel corrugated pipe is selected as a barrier layer, and since the R744 air-conditioning pipe is connected to both ends of the inlet and outlet of the compressor, the vibration and pulse of the environment are complicated. Under the action of vibration and pulse, the stainless steel corrugated pipe is easy to be damaged or broken, so that the service life of the hose is greatly reduced. Meanwhile, in the vibration process, the metal corrugated pipe can generate large noise, and the NVH performance is influenced. In addition, because the space at the trough of the stainless steel corrugated pipe is large, the hose can be lack of rubber and vulcanizing pressure in the vulcanizing process, so that the high-temperature resistance of the rubber protective layer is poor, and the use requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming above technique not enough, provide a high temperature and high pressure resistant, low inflation, low NVH, long-life compound air conditioner hose for carrying etc. novel environmental protection refrigerant carbon dioxide, provide reliable guarantee for the long-term stable operation of air conditioning system.
The utility model aims at realizing through the following technical scheme:
The utility model provides a carry compound air conditioner hose of novel environmental protection refrigerant, compound air conditioner hose's inlayer be fluoroplastics gas barrier layer.
As a technical solution of the composite air-conditioning hose of the present invention, the composite air-conditioning hose includes an inner fluoroplastic gas barrier layer 1, at least one reinforcing layer 3 disposed outside the fluoroplastic gas barrier layer 1, and/or a high temperature resistant rubber layer 2 disposed outside the reinforcing layer 3; the number of the layers of the high-temperature resistant rubber layer 2 is n, the number of the layers of the reinforcing layer 3 is n or n +1, and n is selected from 0, 1 and 2; the high-temperature resistant rubber layer 2 and the reinforcing layer 3 are arranged at intervals.
Preferably, the composite air-conditioning hose is composed of a fluoroplastic gas barrier layer 1 and a reinforcing layer 3 from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer 1, a reinforcing layer 3 and a high-temperature resistant rubber layer 2 from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer 1, a reinforcing layer 3, a high-temperature resistant rubber layer 2 and a reinforcing layer 3 from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer 1, a reinforcing layer 3, a high-temperature-resistant rubber layer 2, a reinforcing layer 3 and a high-temperature-resistant rubber layer 2 from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer 1, a reinforcing layer 3, a high-temperature-resistant rubber layer 2 and a reinforcing layer 3 from inside to outside in sequence.
As another technical solution of the composite air-conditioning hose of the present invention, the composite air-conditioning hose includes an inner fluoroplastic gas barrier layer 1, at least one high temperature resistant rubber layer 2 disposed outside the fluoroplastic gas barrier layer 1, and a reinforcement layer 3 disposed outside the high temperature resistant rubber layer 2; the number of the reinforced layers 3 is m, the number of the layers of the high-temperature resistant rubber layers 2 is m or m +1, and m is selected from 1 and 2; the high-temperature resistant rubber layer 2 and the reinforcing layer 3 are arranged at intervals.
Preferably, the composite air-conditioning hose is composed of a fluoroplastic gas barrier layer 1, a high-temperature-resistant rubber layer 2 and a reinforcing layer 3 from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer 1, a high-temperature-resistant rubber layer 2, a reinforcing layer 3 and a high-temperature-resistant rubber layer 2 from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer 1, a high-temperature-resistant rubber layer 2, a reinforcing layer 3, a high-temperature-resistant rubber layer 2 and a reinforcing layer 3 from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer 1, a high-temperature-resistant rubber layer 2, a reinforcing layer 3 and a high-temperature-resistant rubber layer 2 from inside to outside in sequence.
The inner diameter of the composite air-conditioning hose is 3.2mm-10 mm; the thickness of the fluoroplastic gas barrier layer is 0.1-2.5 mm; the thickness of the high-temperature resistant rubber layer is 0.5-3.0 mm.
the fluoroplastic of the fluoroplastic gas barrier layer 1 is selected from one or more of PTFE (polytetrafluoroethylene), PEP (fluorinated ethylene propylene), PFA (tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer), PDVF (polyvinylidene fluoride) and ETFE (copolymer of ethylene and tetrafluoroethylene).
The high-temperature resistant rubber layer 2 is made of one or more of HNBR (hydrogenated nitrile butadiene rubber) composition, silicone rubber composition and fluororubber composition.
The HNBR rubber composition comprises the following components in parts by weight: HNBR rubber: 100 parts of DCP: 2-4 parts of accelerator TAIC: 0.5-4 parts of an anti-aging agent 445: 0.5-3 parts of carbon black N550: 40-80 parts of a softening agent: 5-10 parts; wherein the softener is selected from softener TOTM and softener TP-95.
The silicone rubber composition comprises the following components in parts by weight: methyl vinyl silicone rubber: 100 parts of methyl hydroxy silicone oil: 5-10 parts of reinforcing agent white carbon black: 30-60 parts of peroxide vulcanizing agent bis-penta vulcanizing agent (2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane): 2-4 parts.
The fluororubber composition comprises the following components in parts by weight: fluororubber: 100 parts of magnesium oxide 150: 3-15 parts of calcium hydroxide: 3-6 parts of peroxide curing agent DCP: 1.5-4.0 parts, N990: 10-40 parts.
The enhancement layer 3 is formed by weaving or winding one or more of AR (aramid fiber), PVA (polyvinyl alcohol fiber) and metal wires. The diameter of the aramid fiber is 0.25-1.0mm, and the elongation at break is less than or equal to 3%; the linear diameter of the polyvinyl alcohol fiber is 0.25-1.0mm, and the elongation at break is less than or equal to 3.5%; the wire diameter of the metal wire is 0.25-1.0mm, and the elongation at break is less than or equal to 3%. The metal wire is a stainless steel wire or a copper-plated steel wire.
The utility model has the advantages that:
The hose has excellent comprehensive performance such as permeability resistance, high and low temperature resistance, bending resistance, low expansion, vibration resistance, better pulse absorptivity and the like, high refrigerant permeation resistance and effective prevention of leakage of refrigerant at the connection of the pipe joint and the hose. The concrete expression is as follows:
the service temperature of the fluoroplastic gas barrier layer is-60-230 ℃, the same state can be kept at the service temperature of-50-180 ℃ of the carbon dioxide refrigerant, the softness and intermolecular acting force are kept, the shielding effect of the barrier layer can be guaranteed, the low permeability is guaranteed, and the explosive decompression is avoided.
The high-temperature-resistant rubber layer can ensure that the hose keeps flexibility at the temperature of between 50 ℃ below zero and 180 ℃ and has good NVH (noise vibration and harshness) performance; the design of convenient riveting structure guarantees the hyposmosis of hose itself and joint junction.
The reinforcing layer is made of metal wires, aramid fibers or polyvinyl alcohol fibers with high modulus and small temperature coefficient, so that the expansion coefficient of the hose is small at the temperature of minus 40-180 ℃, the circumferential stability and the radial stability of the hose are good, the pressure drop of a system is reduced, and the problem of explosive decompression is avoided.
Drawings
FIG. 1 is a schematic structural view of a composite air conditioner hose according to embodiment 1;
FIG. 2 is a schematic structural view of a composite air conditioner hose according to embodiment 2;
FIG. 3 is a schematic structural view of a composite air conditioner hose according to embodiment 3;
FIG. 4 is a schematic structural view of a composite air conditioner hose according to embodiment 4;
FIG. 5 is a schematic structural view of a composite air conditioner hose according to embodiment 5;
FIG. 6 is a schematic structural view of a composite air conditioner hose according to embodiment 6;
FIG. 7 is a schematic structural view of a composite air-conditioning hose according to embodiment 7;
FIG. 8 is a schematic structural view of a composite air conditioner hose according to embodiment 8;
fig. 9 is a schematic structural view of a composite air conditioning hose of embodiment 9.
Detailed Description
The technical solution of the present invention will be further explained with reference to the following embodiments.
Example 1
as shown in fig. 1, a composite air conditioning hose for conveying a novel environment-friendly refrigerant, the hose sequentially comprises from inside to outside: a fluoroplastic gas barrier layer 1 and a reinforcing layer 3; wherein the fluoroplastic gas barrier layer is made of PTFE and has a thickness of 1.5 mm; the reinforcing layer is woven by stainless steel wires with the wire diameter of 0.3mm and the breaking elongation of 3.0%. The inner diameter of the composite air-conditioning hose is 4mm, and the outer diameter of the composite air-conditioning hose is 8.2 mm.
The method for testing the leakage amount of the hose comprises the following steps: helium for leak detectionThe detection system has pure R744 as measuring medium and the R744 charge is 185kg/m3The temperature is 165 ℃, the pressure is 13MPa, the load state is maintained, a mass spectrometer is adopted for R744 detection, the detection is carried out once every 1 hour until the leakage rate of adjacent time intervals reaches a steady state (<10% deviation), the leak rate after steady state was recorded.
The leakage of the hose was 3 g/year.
Example 2
As shown in fig. 2, a composite air conditioning hose for transporting a novel environment-friendly refrigerant sequentially comprises from inside to outside: the fluoroplastic gas barrier layer 1, the high-temperature resistant rubber layer 2 and the reinforcing layer 3; wherein the fluoroplastic gas barrier layer is made of PDVF and has the thickness of 1 mm; the high-temperature resistant rubber layer is made of a fluororubber composition: 100 parts of fluororubber, 10 parts of high-activity magnesium oxide 150, 6 parts of calcium hydroxide, 3 parts of peroxide vulcanizing agent DCP and 30 parts of N990 carbon black, wherein the thickness is 2.4 mm; the reinforcing layer is formed by winding stainless steel wires with the wire diameter of 0.3mm and the breaking elongation of 2.7%. The inner diameter of the composite air-conditioning hose is 6mm, and the outer diameter of the composite air-conditioning hose is 14 mm.
The leakage of the hose was 2.5 g/year.
example 3
As shown in fig. 3, a composite air conditioning hose for transporting a novel environment-friendly refrigerant sequentially comprises, from inside to outside: the fluoroplastic gas barrier layer 1, the reinforcing layer 3 and the high-temperature-resistant rubber layer 2; wherein the fluoroplastic gas barrier layer is made of PTFE and has a thickness of 1 mm; the reinforced layer is formed by winding copper-plated steel wires with the wire diameter of 0.3mm and the elongation at break of 2.5%; the high temperature resistant rubber layer was made of a fluororubber composition (same as in example 2) and had a thickness of 2.9 mm. The inner diameter of the composite air-conditioning hose is 4mm, and the outer diameter of the composite air-conditioning hose is 13 mm.
the leakage of the hose was 2.2 g/year.
Example 4
As shown in fig. 4, a composite air conditioning hose for transporting a novel environment-friendly refrigerant sequentially comprises, from inside to outside: the fluoroplastic gas barrier layer 1, the first high-temperature-resistant rubber layer 21, the reinforcing layer 3 and the second high-temperature-resistant rubber layer 22; wherein the fluoroplastic gas barrier layer is made of PTFE and has a thickness of 0.8 mm; the first high-temperature resistant rubber layer and the second high-temperature resistant rubber layer are both made of hydrogenated nitrile-butadiene rubber compositions: 100 parts of HNBR rubber, 2.5 parts of DCP, 3.5 parts of accelerator TAIC, 2.5 parts of anti-aging agent 445, 70 parts of N550 carbon black and 8 parts of softener TP-95, wherein the thicknesses of the two high-temperature resistant rubber layers are both 2.2 mm; the reinforced layer is woven by copper-plated steel wires with the wire diameter of 0.3mm and the breaking elongation of 2.5%. The inner diameter of the composite air-conditioning hose is 4mm, and the outer diameter of the composite air-conditioning hose is 15.6 mm.
the leakage of the hose was 2.4 g/year.
Example 5
As shown in fig. 5, a composite air conditioning hose for transporting a novel environment-friendly refrigerant sequentially comprises, from inside to outside: a fluoroplastic gas barrier layer 1, a first reinforcing layer 31, a high-temperature resistant rubber layer 2 and a second reinforcing layer 32. Wherein the fluoroplastic gas barrier layer is made of PEP and has a thickness of 0.5 mm; the high-temperature resistant rubber layer is a silicone rubber composition: 100 parts of methyl vinyl silicone rubber, 8 parts of methyl hydroxyl silicone oil, 30 parts of white carbon black and 2.5 parts of bis-penta vulcanizing agent, wherein the thickness is 3 mm; the first reinforcing layer is formed by weaving aramid fibers with the wire diameter of 0.2mm and the elongation at break of 2.8%; the second reinforcing layer is formed by winding stainless steel wires with the wire diameter of 0.3mm and the breaking elongation of 2.8%. The inner diameter of the composite air conditioner hose is 9mm, and the outer diameter of the hose is 16 mm.
The leakage of the hose was 3 g/year.
Example 6
As shown in fig. 6, a composite air conditioning hose for transporting a novel environment-friendly refrigerant sequentially comprises, from inside to outside: the fluoroplastic gas barrier layer 1, a first high-temperature-resistant rubber layer 21, a first reinforcing layer 31, a second high-temperature-resistant rubber layer 22 and a second reinforcing layer 32. Wherein the fluoroplastic gas barrier layer is made of PFA (Perfluoroethylene fluoro elastomer) and has the thickness of 0.8 mm; the two high temperature resistant rubber layers are both made of hydrogenated nitrile rubber composition (same as example 4), the thickness of the first high temperature resistant rubber layer is 1.5mm, and the thickness of the second high temperature resistant rubber layer is 1.2 mm; the first enhancement layer is woven by polyvinyl alcohol fiber with the wire diameter of 0.2mm and the elongation at break of 3.5%; the second reinforcing layer is woven by stainless steel wires with the wire diameter of 0.3mm and the breaking elongation of 2.5%. The inner diameter of the composite air conditioner hose is 10mm, and the outer diameter of the hose is 19 mm.
The hose leakage was 3.4 g/year.
Example 7
As shown in fig. 7, a composite air conditioning hose for transporting a novel environment-friendly refrigerant sequentially comprises, from inside to outside: the fluoroplastic gas barrier layer 1, a first reinforcing layer 31, a first high-temperature-resistant rubber layer 21, a second reinforcing layer 32 and a second high-temperature-resistant rubber layer 22. Wherein the fluoroplastic gas barrier layer is made of ETFE and has a thickness of 0.4 mm; the two high temperature resistant rubber layers are both made of silicon rubber composition (same as example 5), the thickness of the first high temperature resistant rubber layer is 1.4mm, and the thickness of the second high temperature resistant rubber layer is 1.4 mm; the two reinforcing layers are all formed by weaving aramid fibers with the wire diameter of 0.2mm and the breaking elongation of 2.8%. The inner diameter of the composite air conditioner hose is 8mm, and the outer diameter of the hose is 16 mm.
The leakage of the hose was 3 g/year.
Example 8
as shown in fig. 8, a composite air conditioning hose for transporting a novel environment-friendly refrigerant sequentially comprises, from inside to outside: the fluoroplastic gas barrier layer 1, a first high-temperature-resistant rubber layer 21, a first reinforcing layer 31, a second high-temperature-resistant rubber layer 22, a second reinforcing layer 32 and a third high-temperature-resistant rubber layer 23. Wherein the fluoroplastic gas barrier layer is made of PTFE and has a thickness of 0.5 mm; the three high-temperature resistant rubber layers are all made of hydrogenated nitrile-butadiene rubber composition (same as example 4), and the thickness of the three high-temperature resistant rubber layers is 1.6 mm; the two reinforcing layers are made of copper-plated steel wires with the wire diameter of 0.3mm and the elongation at break of 2.4% through winding. The inner diameter of the composite air conditioner hose is 4mm, and the outer diameter of the hose is 19 mm.
the leakage of the hose was 1.8 g/year.
Example 9
As shown in fig. 9, a composite air conditioning hose for transporting a novel environment-friendly refrigerant sequentially comprises, from inside to outside: the fluoroplastic gas barrier layer 1, a first reinforcing layer 31, a first high-temperature-resistant rubber layer 21, a second reinforcing layer 32, a second high-temperature-resistant rubber layer 22 and a third reinforcing layer 32. The fluoroplastic gas barrier layer is made of PFA, and the thickness of the PFA is 1 mm; the two high temperature resistant rubber layers are both made of hydrogenated nitrile rubber composition (same as example 4), the thickness of the first high temperature resistant rubber layer is 2.0mm, and the thickness of the second high temperature resistant rubber layer is 1.6 mm; the first enhancement layer is woven by polyvinyl alcohol fiber with the wire diameter of 0.4mm and the breaking elongation of 3.0 percent; the second reinforcing layer is woven by stainless steel wires with the wire diameter of 0.3mm and the breaking elongation of 2.5%. The inner diameter of the composite air conditioner hose is 4mm, and the outer diameter of the hose is 16 mm.
the leakage of the hose was 2.2 g/year.
Claims (7)
1. A composite air-conditioning hose for conveying a novel environment-friendly refrigerant is characterized by comprising an inner fluoroplastic gas barrier layer, at least one reinforcing layer arranged on the outer side of the fluoroplastic gas barrier layer and/or a high-temperature-resistant rubber layer arranged on the outer side of the reinforcing layer; the number of the layers of the high-temperature resistant rubber layer is n, the number of the layers of the reinforcing layer is n or n +1, and n is selected from 0, 1 and 2; the high-temperature resistant rubber layer and the reinforcing layer are arranged at intervals;
Or the composite air-conditioning hose comprises an inner fluoroplastic gas barrier layer, at least one high-temperature-resistant rubber layer arranged on the outer side of the fluoroplastic gas barrier layer, and a reinforcing layer arranged on the outer side of the high-temperature-resistant rubber layer; the number of the reinforced layers is m, the number of the layers of the high-temperature resistant rubber layers is m or m +1, and m is selected from 1 and 2; the high-temperature resistant rubber layer and the reinforcing layer are arranged at intervals.
2. The composite air-conditioning hose for conveying novel environment-friendly refrigerant as claimed in claim 1, wherein the composite air-conditioning hose is composed of a fluoroplastic gas barrier layer and a reinforcing layer from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer, a reinforcing layer and a high-temperature resistant rubber layer from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer, a reinforcing layer, a high-temperature resistant rubber layer and a reinforcing layer from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer, a reinforcing layer, a high-temperature-resistant rubber layer, a reinforcing layer and a high-temperature-resistant rubber layer from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer, a reinforcing layer, a high-temperature-resistant rubber layer and a reinforcing layer in sequence from inside to outside.
3. The composite air-conditioning hose for conveying novel environment-friendly refrigerants according to claim 1, wherein the composite air-conditioning hose is composed of a fluoroplastic gas barrier layer, a high-temperature resistant rubber layer and a reinforcing layer from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer, a high-temperature-resistant rubber layer, a reinforcing layer and a high-temperature-resistant rubber layer from inside to outside in sequence; or consists of a fluoroplastic gas barrier layer, a high-temperature-resistant rubber layer, a reinforcing layer, a high-temperature-resistant rubber layer and a reinforcing layer in turn from inside to outside; or consists of a fluoroplastic gas barrier layer, a high-temperature-resistant rubber layer, a reinforcing layer and a high-temperature-resistant rubber layer in sequence from inside to outside.
4. The composite air-conditioning hose for conveying novel environment-friendly refrigerant as claimed in any one of claims 1 to 3, wherein the fluoroplastic is one or more of PTFE, PEP, PFA, PDVF and ETFE.
5. The composite air conditioner hose for conveying novel environment-friendly refrigerant according to any one of claims 1 to 3, wherein the material of the high-temperature resistant rubber layer is one or more of HNBR, silicone rubber and fluororubber.
6. The composite air conditioner hose for conveying novel environment-friendly refrigerants according to any one of claims 1 to 3, wherein the reinforcing layer is formed by weaving or winding one or more of aramid fibers, polyvinyl alcohol fibers and metal wires.
7. The composite air-conditioning hose for conveying the novel environment-friendly refrigerant as claimed in claim 6, wherein the aramid fiber has a linear diameter of 0.25-1.0mm and an elongation at break of less than or equal to 3%; the linear diameter of the polyvinyl alcohol fiber is 0.25-1.0mm, and the elongation at break is less than or equal to 3.5%; the wire diameter of the metal wire is 0.25-1.0mm, and the elongation at break is less than or equal to 3%.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821772142.XU CN209800894U (en) | 2018-10-30 | 2018-10-30 | composite air conditioner hose for conveying novel environment-friendly refrigerant |
| PCT/CN2019/086637 WO2020087905A1 (en) | 2018-10-30 | 2019-05-13 | Air conditioner composite hose for conveying new environmentally-friendly refrigerant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821772142.XU CN209800894U (en) | 2018-10-30 | 2018-10-30 | composite air conditioner hose for conveying novel environment-friendly refrigerant |
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| CN209800894U true CN209800894U (en) | 2019-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488819A (en) * | 2018-10-30 | 2019-03-19 | 南京利德东方橡塑科技有限公司 | A kind of combined air conditioner hose of conveying novel environment-friendly refrigerant |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488819A (en) * | 2018-10-30 | 2019-03-19 | 南京利德东方橡塑科技有限公司 | A kind of combined air conditioner hose of conveying novel environment-friendly refrigerant |
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