A kind of high temperature and high pressure resistant composite hose for deep sea transportation

Abstract

The utility model relates to composite hose technical field, the application discloses a kind of for deep sea conveying high temperature and high pressure resistant composite hose, including composite hose main body, the outer surface of both ends of composite hose main body is fixed with fixed flange, the composite hose main body includes polytetrafluoroethylene lining pipe, stainless steel joint and high temperature resistant heat preservation inner layer;Polytetrafluoroethylene lining pipe outside fixed sleeve is equipped with high temperature resistant heat preservation inner layer, the both ends between polytetrafluoroethylene lining pipe and high temperature resistant heat preservation inner layer are fixed sleeve and are equipped with stainless steel joint, the utility model can carry out heat preservation to the substance inside pipeline when conveying, reduce the heat loss of substance when conveying, solve the problem that the existing composite hose for deep sea conveying is poor in high temperature resistance and heat preservation performance when using, so that composite hose has sufficient high temperature and high pressure resistant performance, improve the practicality of composite hose.

Description

Technical Field

[0001] This utility model application relates to the field of composite hose technology, specifically a composite hose for deep-sea transportation that is resistant to high temperature and high pressure. Background Technology

[0002] Composite hoses are a special type of packaging container. They are cylindrical containers made of flexible materials, which are folded and welded to form a tubular shape with a nozzle at one end. When squeezed, the contents are extruded through the nozzle. Composite hoses have a multi-layered sealing structure made of various materials, and they still have good resistance to breakage and leakage even in the harshest environments. They will not burst suddenly and can easily handle the transmission of gasoline, diesel, crude oil and various chemical liquids. They can even maintain high flexibility in cold weather.

[0003] For composite hoses used in deep-sea material transport, the seawater pressure is high and the temperature is low. When the temperature of the transported material is high, the composite hose needs to have sufficient high-temperature resistance. However, the existing composite hoses have poor high-temperature resistance and do not have heat insulation properties, resulting in large heat loss during material transport and reducing the practicality of the composite hoses. Summary of the Invention

[0004] To address the problem of poor high-temperature resistance and insulation performance of existing composite hoses used for deep-sea transportation, this invention provides a high-temperature and high-pressure resistant composite hose for deep-sea transportation, thus solving the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A composite hose for deep-sea transport with high temperature and high pressure resistance includes a composite hose body. Fixed flanges are fixed to the outer surfaces of both ends of the composite hose body. The composite hose body includes a polytetrafluoroethylene (PTFE) inner liner, stainless steel connectors, and a high-temperature resistant insulation inner layer. The high-temperature resistant insulation inner layer is fixedly sleeved on the outer side of the PTFE inner liner. Stainless steel connectors are fixedly sleeved at both ends between the PTFE inner liner and the high-temperature resistant insulation inner layer. A mesh explosion-proof layer is fixedly sleeved on the outer surface of the high-temperature resistant insulation inner layer. A high-temperature resistant insulation outer layer is fixedly sleeved on the outer surface of the mesh explosion-proof layer. A stainless steel braided reinforcement layer is fixedly sleeved on the outer surface of the high-temperature resistant insulation outer layer. A rubber anti-corrosion sleeve is fixedly fixed on the outer surface of the stainless steel braided reinforcement layer.

[0006] Furthermore, a sealing ring plate is fixed on the side of the fixed flange away from the composite hose body at one end, and a sealing groove that mates with the sealing ring plate is opened on the other end of the fixed flange away from the composite hose body.

[0007] Furthermore, both the sealing ring plate and the sealing groove are configured as annular rings that mate with the composite hose body, and the thickness of both the sealing ring plate and the sealing groove is less than the thickness of the fixed flange.

[0008] Furthermore, the outer wall of the polytetrafluoroethylene liner tube has a spiral structure, the inner wall is smooth with slight undulations, the inner wall is mirror smooth and has been hot-polished.

[0009] Furthermore, the stainless steel joint extends to one end of the polytetrafluoroethylene inner liner and the outer side of the high-temperature insulation inner layer and is welded and fixed to the fixed flange, the outer surface of which is coated with an anti-corrosion coating.

[0010] Furthermore, the mesh explosion-proof layer is woven from high-tensile fibers, the high-temperature resistant insulation inner layer is made of aluminum silicate fiber, and the high-temperature resistant insulation outer layer is made of aerogel felt.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the double-layered high-temperature resistant and heat-insulating lining can keep the material inside the pipe warm during transportation, reducing heat loss during transportation. This solves the problem of poor high-temperature resistance and heat insulation performance of existing composite hoses used for deep-sea transportation, giving the composite hose sufficient high-temperature and high-pressure resistance and improving its practicality.

[0012] 2. In this utility model, the sealing between adjacent hose interfaces can be ensured by the fixed flanges, sealing ring plates and sealing grooves at both ends during the assembly of the composite hose, so as to avoid leakage of the conveyed material during transportation. In conjunction with the mesh explosion-proof layer and reinforcing layer of the pipeline, the flexibility and strength of the pipeline are guaranteed. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a front view schematic diagram of a composite hose structure according to an embodiment of this application; Figure 2 yes Figure 1 The above-view schematic diagram of the composite hose structure in the embodiment shown; Figure 3 yes Figure 1 A schematic cross-sectional view of the main structure of the composite hose in the embodiment shown.

[0015] The meanings of the reference numerals in the figure are as follows: 1. Composite hose body; 11. Polytetrafluoroethylene inner liner; 12. Stainless steel connector; 13. High-temperature resistant insulation inner layer; 14. Mesh explosion-proof layer; 15. High-temperature resistant insulation outer layer; 16. Stainless steel braided reinforcement layer; 17. Rubber anti-corrosion sleeve; 2. Fixed flange; 3. Sealing ring plate; 4. Sealing groove. Detailed Implementation

[0016] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] Reference Figures 1 to 3 A composite hose for deep-sea transport with high temperature and high pressure resistance includes a composite hose body 1, with fixed flanges 2 fixed to the outer surfaces of both ends of the composite hose body 1. The composite hose body 1 includes a polytetrafluoroethylene (PTFE) inner liner 11, a stainless steel connector 12, and a high-temperature resistant insulation inner layer 13. The high-temperature resistant insulation inner layer 13 is fixedly sleeved on the outside of the PTFE inner liner 11. The high-temperature resistant insulation inner layer 13 is made of aluminum silicate fiber, which is a cotton-like inorganic fiber made from fused alumina as the main raw material, melted at a high temperature of 2100℃, and processed by high-speed centrifugation or blowing methods. It has advantages such as high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity, good resistance to mechanical vibration, small thermal expansion, and good thermal insulation performance. The outer wall of the PTFE inner liner 11 has a spiral structure, and the inner wall is smooth with slight undulations and a mirror-smooth surface, which is hot-polished. The PTFE inner liner 11 and the high-temperature resistant insulation inner layer 13 are... Stainless steel connectors 12 are fixedly fitted at both ends of the space. The stainless steel connectors 12 extend to one end of the polytetrafluoroethylene inner liner tube 11 and the outer side of the high-temperature resistant insulation inner layer 13 and are welded to the fixed flange 2. The outer surface of the fixed flange 2 is coated with an anti-corrosion coating. A mesh explosion-proof layer 14 is fixedly fitted on the outer surface of the high-temperature resistant insulation inner layer 13. The mesh explosion-proof layer 14 is woven from high-tensile fibers. A high-temperature resistant insulation outer layer 15 is fixedly fitted on the outer surface of the mesh explosion-proof layer 14. The high-temperature resistant insulation outer layer 15 is made of aerogel felt material. It is a flexible insulation felt made of nano-silica or metal aerogel as the main material and composited with carbon fiber or ceramic glass fiber cotton or pre-oxidized fiber felt through a special process. It has a low thermal conductivity and certain tensile and compressive strength. A stainless steel woven reinforcement layer 16 is fixedly fitted on the outer surface of the high-temperature resistant insulation outer layer 15. A rubber anti-corrosion sleeve 17 is fixed on the outer surface of the stainless steel woven reinforcement layer 16.

[0018] Specifically, a sealing ring plate 3 is fixed on the side of the fixed flange 2 away from the composite hose body 1, and a sealing groove 4 that mates with the sealing ring plate 3 is opened on the other end of the fixed flange 2 away from the composite hose body 1. Both the sealing ring plate 3 and the sealing groove 4 are set as annular shapes that mate with the composite hose body 1. The thickness of the sealing ring plate 3 and the sealing groove 4 is less than the thickness of the fixed flange 2. When assembling the composite hose body 1, the fixed flange 2 with the sealing ring plate 3 is inserted into the fixed flange 2 of the other composite hose body 1 with the sealing groove 4, thereby increasing the sealing performance of the connection between the ends of the two composite hose bodies 1.

[0019] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0020] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A composite flexible hose for deep-sea transport resistant to high temperature and high pressure, characterized in that: The system includes a composite hose body (1), with fixed flanges (2) fixed on the outer surfaces of both ends of the composite hose body (1). The composite hose body (1) includes a polytetrafluoroethylene inner liner (11), a stainless steel connector (12), and a high-temperature resistant insulation inner layer (13). The high-temperature resistant insulation inner layer (13) is fixedly sleeved on the outer side of the polytetrafluoroethylene inner liner (11). Stainless steel connectors (12) are fixedly sleeved on both ends between the polytetrafluoroethylene inner liner (11) and the high-temperature resistant insulation inner layer (13). A mesh explosion-proof layer (14) is fixedly sleeved on the outer surface of the high-temperature resistant insulation inner layer (13). A high-temperature resistant insulation outer layer (15) is fixedly sleeved on the outer surface of the mesh explosion-proof layer (14). A stainless steel braided reinforcing layer (16) is fixedly sleeved on the outer surface of the high-temperature resistant insulation outer layer (15). A rubber anti-corrosion sleeve (17) is fixedly sleeved on the outer surface of the stainless steel braided reinforcing layer (16).

2. The composite flexible hose for deep-sea transport resistant to high temperature and high pressure according to claim 1, characterized in that: A sealing ring plate (3) is fixed on the side of the fixed flange (2) away from the composite hose body (1), and a sealing groove (4) that mates with the sealing ring plate (3) is opened on the other end of the fixed flange (2) away from the composite hose body (1).

3. The composite flexible hose for deep-sea transport resistant to high temperature and high pressure according to claim 2, characterized in that: The sealing ring plate (3) and the sealing groove (4) are both set as annular shapes that cooperate with the composite hose body (1), and the thickness of the sealing ring plate (3) and the sealing groove (4) is less than the thickness of the fixed flange (2).

4. The composite flexible hose for deep-sea transport resistant to high temperature and high pressure according to claim 1, characterized in that: The outer wall of the polytetrafluoroethylene liner tube (11) is spiral, the inner wall is smooth with slight undulations, the inner wall is mirror smooth and has been hot polished.

5. The composite flexible hose for deep-sea transport resistant to high temperature and high pressure according to claim 1, characterized in that: The stainless steel joint (12) extends to one end of the polytetrafluoroethylene inner liner (11) and the high-temperature insulation inner layer (13) and is welded to the fixed flange (2). The outer surface of the fixed flange (2) is coated with an anti-corrosion coating.

6. The composite flexible hose for deep-sea transport resistant to high temperature and high pressure according to claim 1, characterized in that: The mesh explosion-proof layer (14) is woven from high-tensile fibers, the high-temperature resistant insulation inner layer (13) is made of aluminum silicate fiber, and the high-temperature resistant insulation outer layer (15) is made of aerogel felt.

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