CN219198410U - Protection layer structure of polytetrafluoroethylene corrugated hose - Google Patents
Protection layer structure of polytetrafluoroethylene corrugated hose Download PDFInfo
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- CN219198410U CN219198410U CN202222986488.2U CN202222986488U CN219198410U CN 219198410 U CN219198410 U CN 219198410U CN 202222986488 U CN202222986488 U CN 202222986488U CN 219198410 U CN219198410 U CN 219198410U
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- corrugated hose
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The utility model discloses a polytetrafluoroethylene corrugated hose protective layer structure, which comprises a polytetrafluoroethylene corrugated inner pipe and an outer protective sleeve sleeved on the outer side of the polytetrafluoroethylene corrugated inner pipe; the polytetrafluoroethylene corrugated inner tube comprises a polytetrafluoroethylene corrugated hose layer, wherein a conductive layer is arranged on the inner side of the polytetrafluoroethylene corrugated hose layer, and an outer tensile layer is arranged on the outer side of the polytetrafluoroethylene corrugated hose layer; the oversheath pipe includes the shielding layer of laminating with outer tensile layer, the outside of shielding layer is provided with the waterproof layer, the outside of waterproof layer is provided with outer inoxidizing coating, shielding layer itself through weaving the wire mesh material has higher compressive property, improve the compressive property of this polytetrafluoroethylene bellows, the tensile strength of whole polytetrafluoroethylene bellows is improved through the outer tensile layer of the fine cloth material of glass that sets up, and the fine cloth of glass still has better high temperature resistance, thermal-insulated heat preservation effect is very good, improve the life of this polytetrafluoroethylene bellows.
Description
Technical Field
The utility model relates to the field of corrugated hoses, in particular to a polytetrafluoroethylene corrugated hose protective layer structure.
Background
The polytetrafluoroethylene hose assembly is used as an assembly of new materials, is gradually popularized and developed from 1970, is initially used as a connecting pipeline for transmitting gas and liquid media, and is composed of a polytetrafluoroethylene inner tube, stainless steel wire reinforcing layers formed by various different structural forms and metal connecting pieces at two ends.
Through searching, chinese patent application number: 200410017259.3A high temperature and high pressure resistant polytetrafluoroethylene hose assembly and method of making the same. The utility model relates to a polytetrafluoroethylene hose, which comprises a polytetrafluoroethylene inner tube and a stainless steel wire reinforcing layer wound outside the polytetrafluoroethylene inner tube, and is characterized in that the stainless steel wire reinforcing layer consists of a winding reinforcing layer wound outside the tetrafluoroethylene inner tube and a braiding reinforcing layer wrapped outside the winding reinforcing layer, has good mechanical property, weather aging resistance, environmental corrosion resistance, high and low temperature resistance and chemical resistance, is suitable for various parts of an aerospace craft, is an indispensable important material in the fields of steam pipes, anti-sticking and pollution prevention and the like of various hydraulic presses, medicines, foods and the like, but has still to be improved in the aspects of compression resistance, tensile strength and higher temperature resistance, and has higher requirements on the comprehensive performance and interchangeability of a conveying hose assembly of an aircraft fuel system, a lubricating oil system and a power system along with the rapid development of national defense aviation industry, so a polytetrafluoroethylene corrugated hose protective layer structure is needed to improve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a polytetrafluoroethylene corrugated hose protective layer structure, which aims to solve the technical problems of the defects in the aspects of the existing compression resistance, tensile strength and higher temperature resistance.
In order to achieve the above purpose, the technical scheme of the utility model is to provide a polytetrafluoroethylene corrugated hose protective layer structure, which comprises a polytetrafluoroethylene corrugated inner pipe and an outer protective sleeve sleeved on the outer side of the polytetrafluoroethylene corrugated inner pipe;
the polytetrafluoroethylene corrugated inner tube comprises a polytetrafluoroethylene corrugated hose layer, wherein a conductive layer is arranged on the inner side of the polytetrafluoroethylene corrugated hose layer, and an outer tensile layer is arranged on the outer side of the polytetrafluoroethylene corrugated hose layer;
the outer sheath pipe comprises a shielding layer attached to the outer tensile layer, a waterproof layer is arranged on the outer side of the shielding layer, and an outer protective layer is arranged on the outer side of the waterproof layer.
As a preferable scheme of the utility model, the outer tensile layer adopts glass fiber cloth which is in a strip structure and is tightly wound on the outer side of the polytetrafluoroethylene corrugated hose layer.
In a preferred embodiment of the present utility model, the tensile layer and the polytetrafluoroethylene corrugated hose layer are bonded and fixed by an adhesive layer.
As a preferable scheme of the utility model, the outer surface of the polytetrafluoroethylene corrugated hose layer is treated by sodium treatment liquid.
As a preferable scheme of the utility model, the shielding layer, the waterproof layer and the outer tensile layer are all connected through adhesion, and the shielding layer is connected with the outer tensile layer through adhesion.
As a preferable scheme of the utility model, the shielding layer adopts a woven wire mesh shielding layer, and the outer protective layer adopts a nylon woven layer.
Compared with the prior art, the utility model has the beneficial effects that:
according to the polytetrafluoroethylene corrugated hose protective layer structure, static accumulation can be prevented by the conducting layer, static generated in the high-speed oil transportation process of the pipe can be educed through the shielding layer metal joint connection of the woven metal mesh material, the static can be educed, the static has high compression resistance, the compression resistance of the polytetrafluoroethylene corrugated hose is improved, the tensile strength of the whole polytetrafluoroethylene corrugated hose is improved through the outer tensile layer of the glass fiber cloth material, the glass fiber cloth also has good high temperature resistance, the heat insulation and heat preservation effect is good, water vapor is isolated through the waterproof layer, the water vapor is prevented from being corroded by the water vapor, the use effect is affected, the protection effect of the polytetrafluoroethylene corrugated hose is improved through the outer protective layer, the whole advantage of the polytetrafluoroethylene corrugated hose is improved, and the service life of the polytetrafluoroethylene corrugated hose is prolonged.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a polytetrafluoroethylene corrugated hose protective layer structure battery cell of the present utility model;
FIG. 2 is a cross-sectional view of a polytetrafluoroethylene corrugated hose protective layer structure according to the present utility model;
fig. 3 is an enlarged schematic view of the structure of the region a in fig. 2.
In the figure: 1. a polytetrafluoroethylene corrugated inner tube; 101. a polytetrafluoroethylene corrugated hose layer; 102. a conductive layer; 103. an outer tensile layer; 104. an adhesive layer; 2. an outer sheath tube; 201. a shielding layer; 202. a waterproof layer; 203. and an outer protective layer.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
Example 1
Referring to fig. 1-3, an embodiment of the present utility model provides a protection layer structure of a polytetrafluoroethylene corrugated hose, which includes a polytetrafluoroethylene corrugated inner tube 1 and an outer protection tube 2 sleeved outside the polytetrafluoroethylene corrugated inner tube 1;
the polytetrafluoroethylene corrugated inner tube 1 comprises a polytetrafluoroethylene corrugated hose layer 101, wherein a conductive layer 102 is arranged on the inner side of the polytetrafluoroethylene corrugated hose layer 101, and an outer tensile layer 103 is arranged on the outer side of the polytetrafluoroethylene corrugated hose layer 101;
the outer sheath tube 2 comprises a shielding layer 201 attached to the outer tensile layer 103, a waterproof layer 202 is arranged on the outer side of the shielding layer 201, an outer protective layer 203 is arranged on the outer side of the waterproof layer 202, and the shielding layer 201 is connected with metal connectors at two ends of the polytetrafluoroethylene corrugated hose.
Specifically, this polytetrafluoroethylene bellows protective layer structure can prevent static accumulation through the conducting layer 102 that sets up, but also the static that the high-speed oil transportation in-process of delivery pipe body produced is connected with metal joint through the shielding layer 201 that sets up, improve whole polytetrafluoroethylene bellows's tensile strength through the outer tensile layer 103 that sets up, isolate steam through the waterproof layer 202 that sets up and enter into in shielding layer 201 and the outer tensile layer 103, avoid causing the erosion to it, influence its result of use, improve the protection effect of this polytetrafluoroethylene bellows through the outer inoxidizing coating 203 that sets up, thereby improve the life of this polytetrafluoroethylene bellows.
It should be noted that, the conductive layer 102 is preferably a polytetrafluoroethylene/conductive carbon black conductive layer, which has the function of preventing static accumulation, does not adhere to any viscous substance, has very small flow resistance and good corrosion resistance, prevents the inner wall of the polytetrafluoroethylene corrugated hose layer 101 from being corroded by fluid, and improves the service life thereof.
Referring to fig. 2 and 3, in the present embodiment, the outer tensile layer 103 is made of glass fiber cloth, the glass fiber cloth is in a strip structure, and is tightly wound on the outer side of the polytetrafluoroethylene corrugated hose layer 101, and the tensile layer 103 and the polytetrafluoroethylene corrugated hose layer 101 are adhered and fixed by an adhesive layer 104.
Wherein the outer surface of the polytetrafluoroethylene corrugated hose layer 101 is subjected to sodium treatment.
Specifically, when the polytetrafluoroethylene corrugated hose is manufactured, the outer surface of the polytetrafluoroethylene corrugated hose layer 101 is treated by sodium treatment liquid, and because polytetrafluoroethylene molecules are tightly surrounded by fluorine atoms of an outer layer, the polytetrafluoroethylene corrugated hose has very high stability and non-tackiness, a general pressure-sensitive adhesive is adopted to adhere polytetrafluoroethylene products in a large area and high strength, after the polytetrafluoroethylene corrugated hose is treated by sodium treatment liquid, the polarity and the surface tension of the polytetrafluoroethylene corrugated hose are increased, so that an activated polytetrafluoroethylene surface is obtained, the polytetrafluoroethylene corrugated hose can be adhered with metal, nonmetal and other plastics, then the inner surface of a glass fiber cloth layer is coated with an adhesive layer 104, the glass fiber cloth layer is tightly wound on the outer side of the polytetrafluoroethylene corrugated hose layer 101, the glass fiber cloth layer is firmly combined with the outer surface of the polytetrafluoroethylene corrugated hose layer 101 through heating, and the glass fiber cloth has the advantage of strong tensile strength, so that the tensile property of the polytetrafluoroethylene corrugated hose is improved, the glass fiber cloth also has good high temperature resistance (550 ℃ -1000 ℃), and the heat insulation effect is very good.
Referring to fig. 1 and 2, in the present embodiment, the shielding layer 201, the waterproof layer 202 and the outer tensile layer 103 are all connected by adhesion, the shielding layer 201 and the outer tensile layer 103 are connected by adhesion, so that the layers in the outer sheath tube 2 are tightly adhered, and the outer sheath tube 2 is tightly adhered to the polytetrafluoroethylene corrugated inner tube 1.
In addition, the shielding layer 201 adopts a woven wire mesh shielding layer, has higher compressive property when having the function of leading out static electricity, improves the compressive property of the polytetrafluoroethylene corrugated hose, and the outer protective layer 203 adopts a nylon woven layer, and improves the overall wear resistance of the polytetrafluoroethylene corrugated hose through the nylon woven layer, so that the abrasion phenomenon is not easy to occur in the dragging process.
The implementation principle of the polytetrafluoroethylene corrugated hose protective layer structure in the embodiment of the application is as follows: this polytetrafluoroethylene ripple hose can prevent static accumulation through the conducting layer 102 that sets up, and do not adhere any viscous substance, the flow resistance is very little, and have fine corrosion resistance, avoid polytetrafluoroethylene ripple hose layer 101's inner wall to be corroded by the fluid, be connected the static that also can lead out the high-speed oil transportation in-process of pipe body through the shielding layer 201 of weaving wire mesh material that sets up, and have higher compressive property by itself, improve the compressive property of this polytetrafluoroethylene ripple hose, improve whole polytetrafluoroethylene ripple hose's tensile strength through the outer tensile layer 103 of glass fiber cloth material that sets up, and glass fiber cloth still has better high temperature resistance, thermal-insulated heat preservation effect is very good, isolate steam through the waterproof layer 202 that sets up and enter into in shielding layer 201 and the outer tensile layer 103, avoid causing the corruption to it, influence its result of use, through the outer inoxidizing coating 203 of the nylon woven material that sets up, improve this polytetrafluoroethylene ripple hose's holistic wear resistance, improve this polytetrafluoroethylene ripple hose's protective effect, and then improve this polytetrafluoroethylene hose holistic advantage, improve this polytetrafluoroethylene ripple hose's life.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. A polytetrafluoroethylene ripple hose protective layer structure which characterized in that: comprises a polytetrafluoroethylene corrugated inner pipe (1) and an outer protective sleeve (2) sleeved on the outer side of the polytetrafluoroethylene corrugated inner pipe (1);
the polytetrafluoroethylene corrugated inner tube (1) comprises a polytetrafluoroethylene corrugated hose layer (101), a conductive layer (102) is arranged on the inner side of the polytetrafluoroethylene corrugated hose layer (101), and an outer tensile layer (103) is arranged on the outer side of the polytetrafluoroethylene corrugated hose layer (101);
the outer protective sleeve (2) comprises a shielding layer (201) attached to the outer tensile layer (103), a waterproof layer (202) is arranged on the outer side of the shielding layer (201), and an outer protective layer (203) is arranged on the outer side of the waterproof layer (202).
2. A polytetrafluoroethylene bellows protecting layer structure according to claim 1, wherein: the outer tensile layer (103) adopts glass fiber cloth which is in a strip-shaped structure and is tightly wound on the outer side of the polytetrafluoroethylene corrugated hose layer (101).
3. A polytetrafluoroethylene bellows protecting layer structure according to claim 2, wherein: the tensile layer (103) and the polytetrafluoroethylene corrugated hose layer (101) are adhered and fixed through the adhesive layer (104).
4. A polytetrafluoroethylene bellows protecting layer structure according to claim 1, wherein: the outer surface of the polytetrafluoroethylene corrugated hose layer (101) is treated by sodium treatment liquid.
5. A polytetrafluoroethylene bellows protecting layer structure according to claim 1, wherein: the shielding layer (201), the waterproof layer (202) and the outer tensile layer (103) are all connected through adhesion, and the shielding layer (201) is connected with the outer tensile layer (103) through adhesion.
6. A polytetrafluoroethylene bellows protecting layer structure according to claim 1, wherein: the shielding layer (201) adopts a woven wire mesh shielding layer, and the outer protective layer (203) adopts a nylon woven layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222986488.2U CN219198410U (en) | 2022-11-09 | 2022-11-09 | Protection layer structure of polytetrafluoroethylene corrugated hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222986488.2U CN219198410U (en) | 2022-11-09 | 2022-11-09 | Protection layer structure of polytetrafluoroethylene corrugated hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219198410U true CN219198410U (en) | 2023-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222986488.2U Active CN219198410U (en) | 2022-11-09 | 2022-11-09 | Protection layer structure of polytetrafluoroethylene corrugated hose |
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| CN (1) | CN219198410U (en) |
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2022
- 2022-11-09 CN CN202222986488.2U patent/CN219198410U/en active Active
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