CN214743879U

CN214743879U - High-temperature-resistant HDPE porous ribbed winding corrugated pipe

Info

Publication number: CN214743879U
Application number: CN202120955365.5U
Authority: CN
Inventors: 郝梓超; 郝珊
Original assignee: Jiangxi Fushan New Material Technology Co ltd
Current assignee: Jiangxi Fushan New Material Technology Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-11-16
Anticipated expiration: 2031-05-07

Abstract

The utility model discloses a high temperature resistant HDPE porous reinforcement winding bellows, including the inner tube, the surface of inner tube bonds through the viscose has the outer tube, the junction of outer tube and outer tube bonds has first strengthening rib, the surface of outer tube bonds has horizontal strengthening rib, the both ends of horizontal strengthening rib all bond with the surface of first strengthening rib, be formed with the gap between outer tube and the inner tube, the inner chamber in gap bonds has the second strengthening rib, the surface of second strengthening rib bonds with the surface of outer tube and inner tube respectively; the utility model discloses a set up inorganic high temperature resistant coating, improved the heat resistance of outer tube and inner tube, through setting up boron nitride fibrous layer, improved mechanical properties, heat resistance, oxidation resistance and the corrosion resisting property of this bellows, through setting up horizontal strengthening rib, first strengthening rib and second strengthening rib for improve the individual anti-bending of every body and compressive property.

Description

High-temperature-resistant HDPE porous ribbed winding corrugated pipe

Technical Field

The utility model relates to a bellows technical field specifically is a porous muscle winding bellows that adds of HDPE of anti high temperature.

Background

The corrugated pipe is a tubular elastic sensitive element which is formed by connecting foldable corrugated sheets along the folding and stretching direction. The corrugated pipe has wide application in instruments and meters, is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force, has thin pipe wall and high sensitivity, has a measuring range of dozens of pascals to dozens of megapascals, is fixed at an opening end, is in a free state at a sealing end, and utilizes an auxiliary spiral spring or a reed to increase elasticity, and HDPE refers to high-density polyethylene.

When the existing HDPE corrugated pipe is used, due to the fact that high-density polyethylene is poor in ageing resistance, environment stress cracking resistance is inferior to that of low-density polyethylene, and the HDPE corrugated pipe is poor in oxidation resistance, so that the HDPE corrugated pipe is prone to breaking when being bent, the service life of the HDPE corrugated pipe is shortened, and therefore the high-temperature-resistant HDPE porous ribbed wound corrugated pipe needs to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a porous muscle winding bellows that adds of HDPE of high temperature resistance possesses the advantage that the oxidation resistance is good and resistant bending fracture is effectual to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a porous muscle winding bellows that adds of high temperature resistance HDPE, includes the inner tube, the surface of inner tube bonds through the viscose has the outer tube, the outer tube bonds with the junction of outer tube has first strengthening rib, the surface bonding of outer tube has horizontal strengthening rib, the both ends of horizontal strengthening rib all with the surface bonding of first strengthening rib, be formed with the gap between outer tube and the inner tube, the inner chamber in gap bonds and has the second strengthening rib, the surface of second strengthening rib respectively with the surface bonding of outer tube and inner tube, the internal surface and the surface of outer tube and inner tube all coat and have high temperature resistant layer, the internal surface and the surface of outer tube and inner tube just are located one side of keeping away from high temperature resistant layer and all coat and have the antioxidation layer, the one side coating that high temperature resistant layer was kept away from to the antioxidation layer has the inoxidizing layer.

Preferably, the quantity of outer tube is six groups, and is the equidistance and bonds the surface that has the inner tube, outer tube and inner tube are the same specification setting.

Preferably, the transverse reinforcing ribs are bonded to the surface of the outer pipe at equal intervals, and the length ratio of the distance between the transverse reinforcing ribs to the length of the outer pipe is 1: 10.

preferably, the high-temperature resistant layer comprises an inorganic high-temperature resistant coating, and one side of the inorganic high-temperature resistant coating, which is far away from the surfaces of the outer pipe and the inner pipe, is coated with a boron nitride fiber layer.

Preferably, the anti-oxidation layer comprises an anodized oxidation film, and one side of the anodic oxidation film, which is far away from the high-temperature resistant layer, is coated with a glass flake coating.

Preferably, the protective layer comprises a polyurethane coating, and the side of the polyurethane coating, which is far away from the oxidation resistant layer, is coated with a fluorocarbon hydrophobic coating.

Preferably, the thickness of the high temperature resistant layer is fifty to seventy microns, and the thickness of the anti-oxidation layer and the thickness of the protective layer are both 80 to 120 microns.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model improves the heat resistance of the outer pipe and the inner pipe by arranging the inorganic high temperature resistant coating, and improves the mechanical property, the heat resistance, the oxidation resistance and the corrosion resistance of the corrugated pipe by arranging the boron nitride fiber layer;

2. the utility model improves the oxidation resistance of the outer pipe and the inner pipe by arranging the anodized oxide film, reduces the probability of decay of the outer pipe and the inner pipe, prolongs the service life, and improves the thermal shock resistance and the high temperature resistance of the pipe body by arranging the glass flake coating;

3. the utility model prevents the outer pipe and the inner pipe from being blocked by cohesiveness by the good hydrophobicity of the surface provided with the fluorocarbon hydrophobic coating; by providing a polyurethane coating, damage from rubbing is reduced.

4. The utility model discloses a set up horizontal strengthening rib, first strengthening rib and second strengthening rib for improve the individual anti bending and compressive property of every body.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the outer tube of the present invention in a side view;

FIG. 3 is a schematic sectional view of the high temperature resistant layer of the present invention;

FIG. 4 is a schematic cross-sectional view of the anti-oxidation layer of the present invention;

fig. 5 is a schematic sectional view of the protective layer of the present invention.

In the figure: 1. an inner tube; 2. an outer tube; 3. a first reinforcing rib; 4. transverse reinforcing ribs; 5. a gap; 6. a second reinforcing rib; 7. a high temperature resistant layer; 8. an anti-oxidation layer; 9. a protective layer; 10. an inorganic high temperature resistant coating; 11. a boron nitride fiber layer; 12. anodizing the oxide film; 13. coating of glass flakes; 14. a polyurethane coating; 15. a fluorocarbon hydrophobic coating.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a high-temperature-resistant HDPE porous ribbed winding corrugated pipe comprises an inner pipe 1, wherein outer pipes 2 are bonded to the outer surface of the inner pipe 1 through viscose glue, the number of the outer pipes 2 is six, the surfaces of the inner pipes 1 are bonded at equal intervals, and the outer pipes 2 and the inner pipe 1 are arranged in the same specification;

outer tube 2 bonds with the junction of outer tube 2 has first strengthening rib 3, and the surface bonding of outer tube 2 has horizontal strengthening

rib

4, and 4 equidistance bonds on the surface of outer tube 2 of horizontal strengthening rib, and the interval between 4 horizontal strengthening ribs and the length proportion of outer tube 2 are 1: 10;

two ends of the transverse reinforcing rib 4 are bonded with the surfaces of the first reinforcing ribs 3, a gap 5 is formed between the outer pipe 2 and the inner pipe 1, a second reinforcing rib 6 is bonded in the inner cavity of the gap 5, and the surfaces of the second reinforcing ribs 6 are bonded with the surfaces of the outer pipe 2 and the inner pipe 1 respectively;

the inner surfaces and the outer surfaces of the outer pipe 2 and the inner pipe 1 are coated with high-temperature resistant layers 7, each high-temperature resistant layer 7 comprises an inorganic high-temperature resistant coating 10, and one side, far away from the surfaces of the outer pipe 2 and the inner pipe 1, of each inorganic high-temperature resistant coating 10 is coated with a boron nitride fiber layer 11; by arranging the inorganic high-temperature-resistant coating 10, the heat resistance of the outer pipe 2 and the inner pipe 1 is improved, and the outer pipe 2 and the inner pipe 1 are prevented from cracking due to insolation when the outer pipe and the inner pipe are exposed to the sun; by arranging the boron nitride fiber layer 11, the boron nitride fiber layer 11 has excellent mechanical properties, heat resistance, oxidation resistance and corrosion resistance;

the inner surface and the outer surface of the outer pipe 2 and the inner pipe 1 and the side far away from the high temperature resistant layer 7 are coated with an anti-oxidation layer 8, the anti-oxidation layer 8 comprises an anodized oxidation film 12, and the side far away from the high temperature resistant layer 7 of the anodized oxidation film 12 is coated with a glass flake coating 13; by arranging the anodized oxide film 12, the oxide film is firmly combined with the matrix, and the oxide film is generated by the matrix metal and is integrated with the matrix metal into a whole, so that the oxidation resistance of the outer pipe 2 and the inner pipe 1 is improved, the probability of decay of the outer pipe 2 and the inner pipe 1 is reduced, and the service life is prolonged; by arranging the glass flake coating 13, the glass flake coating 13 has the characteristics of small thermal expansion coefficient, correspondingly small bonding thermal stress, high heat resistance temperature and good thermal shock resistance, and the high temperature resistance of the surfaces of the outer pipe 2 and the inner pipe 1 is further improved;

the side, away from the high temperature resistant layer 7, of the oxidation resistant layer 8 is coated with a protective layer 9, the protective layer 9 comprises a polyurethane coating 14, and the side, away from the oxidation resistant layer 8, of the polyurethane coating 14 is coated with a fluorocarbon hydrophobic coating 15; the thickness of the high temperature resistant layer 7 is fifty to seventy microns, and the thickness of the oxidation resistant layer 8 and the thickness of the protective layer 9 are both 80 to 120 microns;

the polyurethane coating 14 has good mechanical properties, high solid content, low film forming temperature, strong adhesive force and good wear resistance, improves the wear resistance of the outer pipe 2 and the inner pipe 1, and reduces damage caused by friction to cause the outer pipe 2 and the inner pipe 1 to break; the surfaces of the fluorocarbon hydrophobic coatings 15 have good hydrophobicity, so that viscous substances and stains in flowing media in the outer pipe 2 and the inner pipe 1 are difficult to attach to the surfaces of the outer pipe 2 and the inner pipe 1, and the outer pipe 2 and the inner pipe 1 are prevented from being blocked in a bonding manner;

through setting up horizontal strengthening rib 4, first strengthening rib 3 and second strengthening rib 6 for improve the individual anti-bending and compressive property of every body, first strengthening rib 3 and second strengthening rib 6 are connected outer tube 2 and inner tube 1 again and are become a whole simultaneously, and the pressure homodisperse that will receive, thereby reach the purpose that improves resistance to compression and anti-bending property.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a porous reinforced winding bellows of HDPE of high temperature resistance, includes inner tube (1), its characterized in that: the surface of inner tube (1) bonds through the viscose has outer tube (2), outer tube (2) bonds with the junction of outer tube (2) has first strengthening rib (3), the surface bonding of outer tube (2) has horizontal strengthening rib (4), the both ends of horizontal strengthening rib (4) all bond with the surface of first strengthening rib (3), be formed with gap (5) between outer tube (2) and inner tube (1), the inner chamber bonding of gap (5) has second strengthening rib (6), the surface of second strengthening rib (6) bonds with the surface of outer tube (2) and inner tube (1) respectively, the internal surface and the surface of outer tube (2) and inner tube (1) all coat and have high temperature resistant layer (7), the internal surface and the surface of outer tube (2) and inner tube (1) and the one side that is located away from high temperature resistant layer (7) all coat and have oxidation resisting layer (8), and a protective layer (9) is coated on one side, far away from the high-temperature-resistant layer (7), of the oxidation-resistant layer (8).

2. The high temperature resistant HDPE porous ribbed winding corrugated pipe of claim 1, wherein: the quantity of outer tube (2) is six groups, and is the equidistance and bonds the surface that has inner tube (1), outer tube (2) and inner tube (1) are the same specification setting.

3. The high temperature resistant HDPE porous ribbed winding corrugated pipe of claim 1, wherein: horizontal strengthening rib (4) equidistance bonds on the surface of outer tube (2), the length ratio of interval between horizontal strengthening rib (4) and outer tube (2) is 1: 10.

4. the high temperature resistant HDPE porous ribbed winding corrugated pipe of claim 1, wherein: the high-temperature-resistant layer (7) comprises an inorganic high-temperature-resistant coating (10), and a boron nitride fiber layer (11) is coated on one side, away from the surfaces of the outer pipe (2) and the inner pipe (1), of the inorganic high-temperature-resistant coating (10).

5. The high temperature resistant HDPE porous ribbed winding corrugated pipe of claim 1, wherein: the anti-oxidation layer (8) comprises an anodized oxidation film (12), and one side, far away from the high-temperature-resistant layer (7), of the anodized oxidation film (12) is coated with a glass flake coating (13).

6. The high temperature resistant HDPE porous ribbed winding corrugated pipe of claim 1, wherein: the protective layer (9) comprises a polyurethane coating (14), and one side, far away from the anti-oxidation layer (8), of the polyurethane coating (14) is coated with a fluorocarbon hydrophobic coating (15).

7. The high temperature resistant HDPE porous ribbed winding corrugated pipe of claim 1, wherein: the thickness of the high temperature resistant layer (7) is fifty to seventy microns, and the thickness of the oxidation resistant layer (8) and the thickness of the protective layer (9) are both 80 to 120 microns.