CN115503293A - Air conditioner pipeline structure with carbon dioxide as medium - Google Patents

Air conditioner pipeline structure with carbon dioxide as medium Download PDF

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Publication number
CN115503293A
CN115503293A CN202210565133.8A CN202210565133A CN115503293A CN 115503293 A CN115503293 A CN 115503293A CN 202210565133 A CN202210565133 A CN 202210565133A CN 115503293 A CN115503293 A CN 115503293A
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China
Prior art keywords
layer
carbon dioxide
air conditioner
pipeline structure
medium
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Pending
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CN202210565133.8A
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Chinese (zh)
Inventor
陈浩
李光远
冯海彬
刘春生
李金倍
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Changchun Faw Sihuan Automobile Pipeline Co ltd
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Changchun Faw Sihuan Automobile Pipeline Co ltd
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Priority to CN202210565133.8A priority Critical patent/CN115503293A/en
Publication of CN115503293A publication Critical patent/CN115503293A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/123—Rigid pipes of plastics with or without reinforcement with four layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/744—Non-slip, anti-slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention discloses an air conditioner pipeline structure with a carbon dioxide medium, which comprises an outer layer, a reinforcing layer and a blocking layer, wherein the reinforcing layer is arranged on the inner side of the outer layer, a tensile layer is arranged on the inner side of the reinforcing layer, the blocking layer is arranged on the inner side of the tensile layer, an inner layer is arranged on the inner side of the blocking layer, and the inner layer and the blocking layer are fixed through a glue layer in a sticking manner. The present invention can satisfy CO 2 The heat pump air conditioning system serving as a medium has the characteristics of excellent barrier property, excellent lubricant resistance and low density on a refrigerant, the pressure resistance is obviously improved, the flexibility of the pipe body is greatly improved, the effects of shock absorption and noise reduction are achieved, and meanwhile, the heat pump air conditioning system is convenient to install.

Description

Air conditioner pipeline structure with carbon dioxide as medium
Technical Field
The invention relates to the technical field of automobile parts, in particular to an air conditioner pipeline structure with a carbon dioxide medium.
Background
Firstly, the refrigerant commonly used by the automobile air conditioning pipeline is R134a, the vaporization latent heat of the R134a is larger than that of the R12, the refrigerant is not compatible with nitrile rubber, the water absorption is strong, the refrigerant is easy to react with water to generate acid, and simultaneously, the system operation medium CO is 2 Has a molecular weight (44) much lower than that of R134a (102), and CO is present at higher system pressures 2 The rubber material has strong permeability for the conventional rubber material, corrodes the pipeline of the refrigerating machine and is easy to leak, and secondly, the pipeline of the air conditioner needs to bear higher pressure and CO 2 Heat pump air conditioning system with medium CO 2 The critical temperature value is 31.1 ℃, the critical pressure can reach 7.4Mpa, the pressure on the exhaust side of the system can reach 14Mpa, the pressure on the suction side is about 3.5Mpa, the system operation pressure is improved by 6-8 times compared with the traditional R134a air conditioning system, the higher system pressure is a great challenge to the pressure resistance and the sealing performance of the traditional rubber air conditioning pipeline, in addition, the elastic modulus of the rubber pipe is higher, although the elastic modulus can be reduced through plasticizing or polymer modification, the two methods have the defects: extraction of plasticizers and aging of modifiersTo CO 2 The air conditioning pipeline has good barrier property, pressure resistance and flexibility.
However, in the process of implementing the present invention, the inventor finds that at least the following problems in the prior art are not solved:
1. the traditional air conditioner hose is made of a rubber pipe, the rubber pipe is high in density and low in strength, so that the wall thickness of a rubber pipeline is thick, the product is heavy, and the traditional air conditioner hose based on the rubber pipe tends to reach a bottleneck under the large trend of reducing the weight of the whole vehicle;
2. the traditional air-conditioning hose based on the rubber tube has various production processes, and the quality control and the cost in the production process are the technical problems faced by the traditional air-conditioning hose.
Disclosure of Invention
The invention aims to solve the defects in the prior art, such as: the existing air conditioner pipeline structure with carbon dioxide as a medium has the problems that the wall thickness of a rubber pipeline is large, so that the product is heavy, the production process of the traditional air conditioner hose based on the rubber pipe is various, and the production cost is large.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a medium is air conditioner pipeline structure of carbon dioxide, includes skin, enhancement layer and barrier layer, outer inboard is provided with the enhancement layer, the inboard of enhancement layer is provided with the tensile layer, the inboard of tensile layer is provided with the barrier layer, the inboard of barrier layer is provided with the inlayer, it is fixed to paste through the glue layer between inlayer and the barrier layer.
Preferably, the material of the outer layer is TPV thermoplastic vulcanized rubber, and the material of the tensile layer is PA6.
Preferably, the reinforcing layer is internally provided with a polyester layer or an aramid layer.
Preferably, the material of the barrier layer is EVOH ethylene-vinyl alcohol copolymer, and the material of the inner layer is Orgalloy material.
Preferably, the inner layer and the glue layer are linked together through high-temperature melting, and the glue layer and the barrier layer are linked together through high-temperature melting.
Preferably, the barrier layer and the tensile layer are linked together through high-temperature fusion, and the reinforcing layer is wound on the barrier layer through weaving.
Preferably, the outer layer is coated on the reinforcing layer by extrusion.
Compared with the prior art, the invention has the beneficial effects that:
1. the present invention can satisfy CO 2 The mediated heat pump air conditioning system has excellent barrier performance to refrigerant, excellent lubricant resistance and low density.
2. The invention has the advantages of obviously improving the pressure resistance, greatly improving the flexibility of the pipe body, playing the effects of damping and reducing noise and being convenient to install.
Drawings
FIG. 1 is a perspective view of the main body of the present invention;
FIG. 2 is a schematic flow chart of the preparation process of the present invention;
FIG. 3 is a front view of the main body of the present invention;
FIG. 4 is a side cross-sectional structural schematic view of the present invention;
FIG. 5 is a schematic cross-sectional front view of the present invention;
FIG. 6 is a schematic view of a partial structure of a reinforcement layer of the present invention;
FIG. 7 is a schematic view of the barrier properties of the Orgalloy material of the present invention;
FIG. 8 is a schematic representation of the lubricant resistance of the Orgalloy material of the present invention;
FIG. 9 is a schematic representation of the flexibility of the Orgalloy material of the present invention;
FIG. 10 is a schematic view showing the properties of the EVOH of the present invention.
In the figure: 1. an outer layer; 2. a reinforcing layer; 201. a polyester layer or an aramid layer; 3. a tensile layer; 4. a barrier layer; 5. a glue layer; 6. an inner layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1-6, the air conditioner pipeline structure with carbon dioxide as a medium provided by the invention comprises an outer layer 1, a reinforcing layer 2 and a blocking layer 4, wherein the reinforcing layer 2 is arranged on the inner side of the outer layer 1, the outer layer 1 is made of TPV thermoplastic vulcanized rubber, good buckling connection performance and high pressure resistance comprehensive performance of the pipeline can be ensured, the elastic modulus of each layer of the multilayer pipeline is relatively low, the flexibility of the pipeline body is relatively good, the pipeline is prevented from being invaded by the external environment, and a polyester layer or a polyester layer is respectively arranged inside the reinforcing layer 2The aramid fiber layer 201 mainly serves to guarantee the mechanical performance of the pipe and can greatly improve the burst strength, the tensile layer 3 is arranged on the inner side of the reinforcing layer 2, the material of the tensile layer 3 is PA6, the mechanical performance of the pipe is guaranteed, the bending resistance, the tensile resistance and the positive and negative pressure resistance can be effectively improved, the service life is prolonged, the PA6 material has good comprehensive performance, the density is low, the forming is easy, the design freedom degree is large, the heat insulation and the insulation are realized, meanwhile, the PA6 material has excellent impact performance, the thermal deformation temperature is high, the heat resistance and the friction coefficient are low, the wear resistance, the self-lubrication, the oil resistance and the chemical resistance are excellent, the performance and the grade of the material can be effectively improved, the blocking layer 4 is arranged on the inner side of the tensile layer 3, the inner layer 6 is arranged on the inner side of the blocking layer 4, the inner layer 6 is made of an Orgaloy material, and the blocking layer 4 is made of EVOH ethylene-vinyl alcohol copolymer, the EVOH material is a random copolymer of ethylene and vinyl alcohol, is a crystalline polymer with a chain type molecular structure, has low density and stability, meets higher flow resistance in a pipeline while reducing the specification of the pipeline, has high temperature resistance and can reach 150 ℃ at working temperature, has excellent weather resistance, can keep the original luster and not turn yellow even if the EVOH material is used outdoors for a long time, has small change of mechanical properties, has the melt mass flow rate of 0.7-20 g/10 min, the density of 1.13-1.21 g/cm, the melting point of 158-189 ℃, the tensile fracture strength of 44MPa, the content mole fraction of ethylene in the EVOH material which is usually 20-45 percent and the vinyl alcohol content of 55-80 percent, is commonly called three-large barrier resin by combining the EVOH material, polyvinylidene chloride PVDC and polyamide PA, has the luster and transparency, and has the characteristics of transparency, when the material is used as an outer surface layer of a packaging material, the appearance of high sparkling and low haze can be presented, the EVOH material mainly has the function of preventing small liquid molecules from permeating through a tube wall, has better oil resistance and organic solvent resistance and is suitable for packaging oil-containing and organic solvent-containing medicines and chemicals, the Orgalloy material can realize good flexibility without adding a plasticizer, has high gas permeability for most gases represented by oxygen, has extremely low gas permeability, and has certain resistance to a solution as a material directly contacted with the solution, and the Or material has certain resistance to the solutionThe organic silicon material mainly plays a role in blocking, mainly blocks water molecules, the EVOH has hygroscopicity, the barrier property of the EVOH to gas can be influenced by the characteristic, the organic silicon material is high-temperature resistant and good in flexibility, the shock absorption and noise reduction effects of the organic silicon material can be improved, the EVOH material can be protected, the processability of the EVOH material is excellent, the organic silicon material can compensate for the organic silicon gas barrier property, small liquid molecules can be prevented from permeating through a pipe wall, the organic silicon material and the EVOH material are used as double barrier layers, the corrosion resistance and the permeability resistance of the pipe body are enhanced, the inner layer 6 and the barrier layer 4 are fixedly adhered through the glue layer 5, the main function is to adhere the barrier layer 4 and the inner layer 6 to prevent layering, the organic silicon material is used as the inner layer 6 of the pipe, the low density and the stability of the organic silicon material are achieved, the specification of the pipeline is reduced, the higher flow resistance in the pipeline is met, the inner layer 6 and the inner layer 4 are used as the double barrier layers, the corrosion resistance and the permeability of the pipe body are enhanced, and the density of the organic silicon material is low in density and low in density of 1.04kg/cm 3 The outer layer 1 is additionally provided with a woven layer to increase the compression resistance of the pipeline, the outer layer 1 is a TPV material coating layer, the good buckling connectivity and high-pressure-resistant comprehensive performance of the pipeline can be guaranteed, the elastic modulus of each layer of material of the multilayer pipeline is relatively low, the flexibility of the pipe body is good, the TPV material has good elasticity, compression deformation resistance, environment resistance and aging resistance, the corrosion resistance effect can be effectively improved, meanwhile, the TPV material is green and environment-friendly, can be recycled, has no obvious reduction in performance after being repeatedly used for six times, can effectively improve the environment-friendly effect, is light in specific gravity and can effectively reduce the weight;
example two
As shown in fig. 2, compared with the first embodiment, the air conditioner pipeline structure with carbon dioxide as a medium according to the present invention further includes: a manufacturing method of an air conditioner pipeline structure with carbon dioxide as a medium comprises the following steps of firstly, extruding a semi-finished product from a pipe body; step two, weaving and winding a semi-finished product; step three, extruding a finished product coated with the outer layer;
in the first step, the inner layer 6 and the glue layer 5 are linked together through an extruder in a high-temperature melting mode, the glue layer 5 and the barrier layer 4 are linked together through a high-temperature melting mode, and the barrier layer 4 and the tensile layer 3 are linked together through an extrusion high-temperature melting mode to form a pipe body extrusion semi-finished product;
in the second step, the reinforcing layer 2 is wound on the outer surface of the pipe body extrusion semi-finished product barrier layer 4 through weaving to form a weaving winding semi-finished product;
in the third step, the woven and wound semi-finished product and the raw materials of the outer layer 1 are extruded and coated to form the product, and the prepared finished product is stored in a well-ventilated storehouse or shed, is far away from a heat source and has measures of sun protection and rain protection.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a medium is air conditioner pipeline structure of carbon dioxide, includes skin (1), enhancement layer (2) and barrier layer (4), its characterized in that: the inboard of outer (1) is provided with enhancement layer (2), the inboard of enhancement layer (2) is provided with tensile layer (3), the inboard of tensile layer (3) is provided with barrier layer (4), the inboard of barrier layer (4) is provided with inlayer (6), it is fixed to paste through glue layer (5) between inlayer (6) and barrier layer (4).
2. An air conditioner pipeline structure with carbon dioxide as a medium according to claim 1, characterized in that: the outer layer (1) is made of TPV thermoplastic vulcanized rubber, and the tensile layer (3) is made of PA6.
3. An air conditioner pipeline structure with carbon dioxide as a medium according to claim 1, characterized in that: and a polyester layer or aramid layer (201) is arranged in the reinforcing layer (2).
4. An air conditioner pipeline structure with carbon dioxide as a medium according to claim 1, characterized in that: the barrier layer (4) is made of EVOH ethylene-vinyl alcohol copolymer, and the inner layer (6) is made of Orgalloy material.
5. An air conditioner pipeline structure with carbon dioxide as a medium according to claim 1, characterized in that: the inner layer (6) and the glue layer (5) are linked together through high-temperature melting, and the glue layer (5) and the barrier layer (4) are linked together through high-temperature melting.
6. An air conditioner pipeline structure with carbon dioxide as a medium according to claim 1, characterized in that: the barrier layer (4) and the tensile layer (3) are linked together through high-temperature melting, and the reinforcing layer (2) is wound on the barrier layer (4) through weaving.
7. An air-conditioning pipeline structure with a medium of carbon dioxide as claimed in claim 1, characterized in that: the outer layer (1) is coated on the reinforcing layer (2) through extrusion.
CN202210565133.8A 2022-05-23 2022-05-23 Air conditioner pipeline structure with carbon dioxide as medium Pending CN115503293A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105423008A (en) * 2015-12-16 2016-03-23 天津鹏翎胶管股份有限公司 R744 air conditioner rubber tube and preparation method thereof
CN108430760A (en) * 2015-12-15 2018-08-21 阿科玛法国公司 The multilayer structure making for including continuous fiber for conveying heat-transfer fluid
CN109340471A (en) * 2018-10-25 2019-02-15 南京利德东方橡塑科技有限公司 A kind of air conditioning hose and preparation method thereof meeting novel refrigerant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108430760A (en) * 2015-12-15 2018-08-21 阿科玛法国公司 The multilayer structure making for including continuous fiber for conveying heat-transfer fluid
CN105423008A (en) * 2015-12-16 2016-03-23 天津鹏翎胶管股份有限公司 R744 air conditioner rubber tube and preparation method thereof
CN109340471A (en) * 2018-10-25 2019-02-15 南京利德东方橡塑科技有限公司 A kind of air conditioning hose and preparation method thereof meeting novel refrigerant

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