Fast-assembly type light composite winding hose assembly for discharging and sucking corrosive liquid

Abstract

The utility model belongs to the technical field of hoses, and particularly relates to a fast-assembly type light composite winding hose assembly for discharging and sucking corrosive liquid. The flexible pipe comprises a pipe body and joints, and is characterized in that the pipe body comprises at least three functional layers, the flexible pipe further comprises a protective outer layer arranged outside the functional layers, each functional layer comprises an inner corrosion-resistant resin layer, and a high-strength fiber cloth winding reinforcing layer is arranged outside each corrosion-resistant resin layer; and the joint is a quick disassembly and assembly joint for connecting the end parts of two adjacent pipe bodies. The corrosion-resistant and anti-volatility flexible pipe is corrosion-resistant and strong in anti-volatility, adopts a plurality of layers of EFPT resin films and a high-strength fiber cloth winding enhancement layer, effectively prevents corrosive liquid from eroding the pipe wall, prevents harmful substances from permeating and diffusing, prevents media from volatilizing, ensures the purity of conveyed media, reduces the corrosive influence of the media on flexible pipe materials, reduces environmental pollution, and is suitable for large-scale popularization and application. And the economic loss caused by medium volatilization is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoses, and particularly relates to a composite winding hose assembly for quickly installing and discharging corrosive liquids with a light body. Background Art

[0002] As one of the important industrial accessories, the oil suction and discharge rubber hose is mainly used for transporting gases and solid particles. The demand for oil suction and discharge rubber hoses is huge. In 2021, the total value of oil suction and discharge rubber hoses consumed by the chemical industry in China was 12 billion yuan, accounting for about 28% of the global share.

[0003] The existing oil suction and discharge rubber hoses have problems such as a large bending radius, slow connection speed, and heavy pipe body weight. At the same time, ordinary oil suction and discharge rubber hoses have the problem of medium volatilization during operation. The resource waste and environmental pollution caused by long-term use cannot be ignored. Summary of the Invention

[0004] The utility model aims at the above problems and provides a composite winding hose for quickly installing and discharging corrosive liquids with a light body, which can limit the amount of medium volatilization and is convenient and fast to connect.

[0005] In order to achieve the above object of the utility model, the utility model adopts the following technical scheme. The utility model includes a pipe body and a joint, and is characterized in that: the pipe body includes at least three functional layers, and the hose further includes a protective outer layer arranged outside the functional layer. The functional layer includes an internal corrosion-resistant resin layer, and a high-strength fiber cloth winding reinforcement layer is arranged outside the corrosion-resistant resin layer; the joint is a quick-disassembly and assembly joint for connecting the ends of two adjacent pipe bodies.

[0006] As a preferred scheme of the utility model, the quick-disassembly and assembly joint includes a female head insert core and a male head insert core that cooperate with each other. One ends of the male head insert core and the female head insert core are both provided with insertion ends that cooperate with the pipe body. The male head insert core further includes a sleeve body, and a sleeve body fixedly connected with the pipe body is arranged outside the insertion end of the male head insert core; the other end of the male head insert core is a male head mating end, and the other end of the female head insert core is a female head mating end; a locking rod with a cam is arranged on the female head mating end, and the cam passes through a hole on the female head mating end and corresponds to a card slot on the outer surface of the male head mating end.

[0007] Furthermore, a pull ring is arranged on the locking rod.

[0008] As another preferred scheme of the utility model, a stainless steel spiral skeleton is arranged inside the functional layer and abuts against the inner surface of the functional layer, and a stainless steel spiral skeleton is arranged outside the protective outer layer and abuts against the outer surface of the protective outer layer.

[0009] Furthermore, the stainless steel spiral skeleton is made of SUS316 material, and the wire diameter is 3 mm to 6 mm.

[0010] As the third preferred embodiment of the utility model, the corrosion-resistant resin layer is formed by winding at least four layers of EFPT resin film; the high-strength fiber cloth winding reinforcement layer is formed by winding at least two layers of high-strength fiber cloth, and the thickness of a single layer of high-strength fiber cloth is 0.3mm to 0.6mm.

[0011] The beneficial effects of the utility model are as follows: 1. Corrosion resistance and strong anti-volatility: the multi-layer EFPT resin film and high-strength fiber cloth winding reinforcement layer are used to effectively prevent the erosion of the pipe wall by corrosive liquids, prevent the penetration and diffusion of harmful substances, and prevent the volatilization of the medium, thereby ensuring the purity of the conveying medium, reducing the corrosive effect of the medium on the hose material, reducing environmental pollution, and the economic losses caused by the volatilization of the medium.

[0012] 2. High flexibility and small bending radius: The combination of high-strength fiber cloth winding reinforcement layer and stainless steel wire spiral skeleton layer makes the hose extremely flexible, able to operate freely within a small bending radius, adapt to various complex application scenarios, and flexible and convenient to use.

[0013] 3. Light weight and easy to install: Compared with traditional oil suction and discharge rubber hoses, the overall body of this hose is lighter, which reduces the labor intensity and transportation costs during the installation process and effectively improves work efficiency.

[0014] 4. Fast and reliable connection: The two ends of the hose are equipped with quick-release connectors, which makes the connection process simple and fast. Installation and disassembly can be completed in a short time. It is suitable for occasions that require frequent replacement and quick installation, greatly improving work efficiency.

[0015] 5. Good high and low temperature resistance: The utility model uses stainless steel and EFPT materials, combined with high-strength fiber cloth, and has good adaptability in high and low temperature environments, meeting the special temperature requirements of transportation pipelines in many industries such as chemical, oil fields, and medicine.

[0016] 6. Reduce production costs and environmental pollution: Due to the structural characteristics of the utility model, the main functional layer of the utility model is wound with EFPT resin film, which can save complex processes such as extrusion and vulcanization in the traditional production process, which not only simplifies the production process and shortens the production cycle, but also reduces the emission of pollutants, reduces equipment investment and production costs, and has more environmental advantages.

[0017] 7. Extend service life and reduce maintenance costs: The multi-layer structure design improves the pressure resistance and wear resistance of the hose. The spiral skeleton layer of inner and outer stainless steel wires prevents the tube body from being sucked or flattened. It can resist not only positive pressure but also negative pressure, extending the service life of the hose, reducing the frequency of replacement and maintenance, and reducing the overall cost during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present utility model.

[0019] Figure 2 It is a schematic structural diagram of the joint part of the present utility model.

[0020] In the attached drawings, 1 is a stainless steel spiral skeleton, 2 is a protective outer layer, 3 is a high-strength fiber cloth winding reinforcement layer, 4 is a corrosion-resistant resin layer, 5 is a functional layer, 6 is a pipe body, 7 is a joint, 8 is a sleeve, 9 is a male head mating end, 10 is a female head mating end, 11 is a male head insert core, 12 is a female head insert core, 13 is an insertion end, 14 is a locking rod, 15 is a cam, 16 is a pull ring, and 17 is a card slot. Specific embodiments

[0021] As Figure 1 shown, the present utility model includes a pipe body 6 and a joint 7. The pipe body 6 includes at least three layers of functional layers 5. The hose further includes a protective outer layer 2 provided outside the functional layer 5. The functional layer 5 includes an internal corrosion-resistant resin layer 4, and outside the corrosion-resistant resin layer 4 is a high-strength fiber cloth winding reinforcement layer 3; the joint 7 is a quick-disassembly and assembly joint for connecting the ends of two adjacent pipe bodies 6.

[0022] Based on this, the present utility model adopts a multi-layer composite structure, having a corrosion-resistant resin layer 4 and a high-strength fiber cloth winding reinforcement layer 3, enhancing the corrosion resistance and mechanical strength of the pipe body 6, and being able to effectively resist the erosion of corrosive liquids. The outer protective design can also prevent damage to the hose from the external environment. In addition, the design of the quick-disassembly and assembly joint 7 makes the installation and disassembly process more convenient, improving the use efficiency.

[0023] As Figure 1 shown, the following gives an example of the structure of the above-mentioned quick-disassembly and assembly joint 7. For example, in some embodiments of the present application, the quick-disassembly and assembly joint 7 may include a mutually cooperating female head insert core 12 and a male head insert core 11. One ends of the male head insert core 11 and the female head insert core 12 are both provided with an insertion end 13 for cooperating with the pipe body 6. The male head insert core 11 further includes a sleeve 8, and outside the insertion end 13 of the male head insert core 11 is provided with a sleeve 8 fixedly connected to the pipe body 6; the other end of the male head insert core 11 is a male head mating end 9, and the other end of the female head insert core 12 is a female head mating end 10; on the female head mating end 10 is provided a locking rod 14 having a cam 15, and the cam 15 passes through a hole on the female head mating end 10 and corresponds to a card slot 17 on the outer surface of the male head mating end 9.

[0024] The male and female core inserts 12 are used in combination, and the quick connection and disassembly are realized through the cam 15 and the locking rod 14, which greatly simplifies the installation operation. The locking structure not only ensures the firmness and reliability of the connection, but also reduces the time during the installation process and improves the assembly efficiency, and is suitable for occasions that require frequent replacement or movement.

[0025] As Figure 2 shown, a pull ring 16 is arranged on the locking rod 14. On this basis, through the design of adding the pull ring 16 on the locking rod 14, it is convenient for the operator to pull the locking rod 14 during connection and disassembly, simplifies the operation steps, makes the connection more user-friendly, and further improves the convenience of installation and disassembly.

[0026] As Figure 1 shown, a stainless steel spiral skeleton 1 is arranged inside the functional layer 5 and abuts against the inner surface of the functional layer 5, and a stainless steel spiral skeleton 1 is arranged outside the protective outer layer 2 and abuts against the outer surface of the protective outer layer 2. The stainless steel spiral skeleton 1 is arranged inside the functional layer 5 and outside the protective outer layer 2, which enhances the compressive resistance and anti-bending performance of the hose, prevents the hose from being flattened or deformed during use, ensures the smoothness of fluid transportation and the durability of the pipe body 6, and improves the stability of the overall structure.

[0027] The materials of the above-mentioned stainless steel spiral skeleton 1 are illustrated as follows. For example, the stainless steel spiral skeleton 1 can be made of SUS316 material, and the wire diameter is 3 mm to 6 mm.

[0028] Using SUS316 stainless steel material to make the spiral skeleton enables the hose to have excellent corrosion resistance and strength, and at the same time ensures that it can still work for a long time under harsh chemical environments. The reasonable range of the wire diameter of 3 mm to 6 mm improves the compressive capacity and structural stability of the hose and extends the service life of the hose.

[0029] The above-mentioned corrosion-resistant resin layer 4 is illustrated as follows. The corrosion-resistant resin layer 4 is wound by at least four layers of EFPT resin films; the high-strength fiber cloth winding reinforcement layer 3 is wound by at least two layers of high-strength fiber cloths, and the thickness of a single layer of high-strength fiber cloth is 0.3 mm to 0.6 mm.

[0030] The combined design of multiple layers of EFPT resin films and high-strength fiber cloths significantly improves the corrosion resistance, flexibility and strength of the hose. The EFPT resin film layer prevents the penetration of corrosive liquids, and the high-strength fiber cloth layer provides additional reinforcement, ensuring that the hose is still reliable and durable under high pressure and frequent bending conditions, and is suitable for a variety of complex industrial environments.

[0031] The protective outer layer 2 is made of ozone-resistant aging PU material, which plays the role of anti-aging and aesthetics.

[0032] The following table shows the comparative experimental data of this utility model and ordinary rubber hoses:

[0033] Test method UL330 (permeation tube test) EN 1360—2013 (fuel permeation test) Test temperature 38℃ 23℃ Hose specification DN100mm (4") DN100mm (4") Hose length 3.35 meters 2 meters Common pipe Common pipe Permeation and volatilization amount (per day) 61.6 grams 20 ml / m·day Permeation and volatilization amount (per year) 22484 grams 14600 ml, about 10658 grams Permeation and volatilization amount (per year, per pipe) 22484 grams 10658 grams The functional layer 5 of the composite winding hose of this application is 3 layers The functional layer 5 of the composite winding hose of this application is 3 layers Permeation and volatilization amount (per day) 2 grams 1.34 ml / m·day Permeation and volatilization amount (per year) 730 grams 978.2 ml, about 714 grams Permeation and volatilization amount (per year, per pipe) 730 grams 714 grams Performance improvement multiple About 30 times About 14.93 times Gasoline loss reduction The gasoline loss of each 3.35-meter hose is reduced by about 320 kg per year The gasoline loss of each 2-meter hose is reduced by about 240 kg per year

[0034] Comprehensive conclusion: Through the comparison of the two tests, the composite winding hose of this application is significantly superior to ordinary hoses in terms of fuel penetration performance and corrosion resistance. Especially in terms of fuel penetration, the penetration losses of the hose of this application under the two test conditions are much lower than those of ordinary hoses, with an average annual reduction in gasoline loss of about 30 times (UL330 test) and 14.93 times (EN 1360—2013 test). Therefore, the use of the composite winding hose of this application can significantly reduce fuel volatilization and penetration losses, bringing considerable economic benefits to users.

[0035] It can be understood that the above specific description of this utility model is only for the purpose of illustration and is not limited to the technical solutions described in the embodiments of this utility model. Those of ordinary skill in the art should understand that the utility model can still be modified or equivalently replaced to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of this utility model.

Claims

1. A quick-installation lightweight composite winding hose assembly for draining corrosive liquids, comprising a tube body (6) and a joint (7), wherein the tube body (6) comprises at least three functional layers (5), and is characterized in that: The hose further comprises a protective outer layer (2) arranged outside the functional layer (5), the functional layer (5) comprising an internal corrosion-resistant resin layer (4), and the corrosion-resistant resin layer (4) is surrounded by a high-strength fiber cloth wound reinforcement layer (3); the joint (7) is a quick-detachable joint for connecting the ends of two adjacent pipe bodies (6).

2. According to claim 1, a quick-install lightweight composite winding hose assembly for draining corrosive liquids is characterized by: The quick-disconnect connector (7) comprises a female plug core (12) and a male plug core (11) which cooperate with each other. One end of the male plug core (11) and the female plug core (12) are both provided with an insertion end (13) which cooperates with the tube body (6). The male plug core (11) further comprises a sleeve body (8). The insertion end (13) of the male plug core (11) is provided with a sleeve body (8) fixedly connected to the tube body (6). The other end of the male plug core (11) is a male mating end (9), and the other end of the female plug core (12) is a female mating end (10). A locking rod (14) having a cam (15) is provided on the female mating end (10). The cam (15) passes through a hole on the female mating end (10) and corresponds to a slot (17) on the outer surface of the male mating end (9).

3. The quick-install lightweight composite winding hose assembly for draining corrosive liquids according to claim 2 is characterized by: A pull ring (16) is provided on the locking rod.

4. The quick-install lightweight composite winding hose assembly for draining corrosive liquids according to claim 1 is characterized by: A stainless steel spiral skeleton (1) abutting against the inner surface of the functional layer (5) is arranged inside the functional layer (5), and a stainless steel spiral skeleton (1) abutting against the outer surface of the protective outer layer (2) is arranged outside the protective outer layer (2).

5. The quick-install lightweight composite winding hose assembly for draining corrosive liquids according to claim 4 is characterized in that: The stainless steel spiral skeleton (1) is made of SUS316 material, and the diameter of the steel wire is 3 mm to 6 mm.

6. The quick-install lightweight composite winding hose assembly for draining corrosive liquids according to claim 1 is characterized by: The corrosion-resistant resin layer (4) is formed by winding at least four layers of EFPT resin films; the high-strength fiber cloth winding reinforcement layer (3) is formed by winding at least two layers of high-strength fiber cloth, and the thickness of a single layer of high-strength fiber cloth is 0.3 mm to 0.6 mm.

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