Alcohol rail flex bellows assembly

Abstract

The utility model relates to the technical field of methanol engine fuel system, specifically disclose an alcohol track flexible connecting pipe subassembly, including double -walled pipe body, double -walled pipe body includes the fixed connection of bend, bellows and straight pipe from top to bottom in proper order, bend includes inner layer bend and outer layer bend, bellows includes inner layer bellows and outer layer bellows, straight pipe includes inner layer straight pipe and outer layer straight pipe, bend is away from the one end fixed setting of bellows and connects flange no.

Description

Technical Field

[0001] This utility model relates to the technical field of methanol engine fuel system, specifically disclosing a methanol rail flexible connector assembly. Background Technology

[0002] Methanol, as a clean energy source, has high latent heat of vaporization, contains oxygen and is single-carbon. It burns quickly and without smoke or flame. Furthermore, it can achieve clean combustion and reduce petroleum consumption when co-fired with diesel. Therefore, it is considered one of the ideal clean energy sources for the future. However, methanol is toxic and corrosive. Contact with or inhalation can affect health or even cause poisoning. Therefore, it is necessary to use methanol safely.

[0003] The performance of the methanol transport pipe is crucial. Existing methanol rail pipes have insufficient sealing, which can easily lead to methanol leakage. This not only wastes raw materials but may also cause safety accidents. Furthermore, existing methanol rail pipes are prone to deformation under external forces, which can affect the reliability of the system. Therefore, there is an urgent need for a safe and reliable pipe assembly to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides an alcohol rail flexible connector assembly to solve the problems of insufficient connection sealing and easy deformation under external force in the prior art alcohol rail connector.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The aforementioned flexible tube assembly for alcohol rails includes a double-walled tube body, which comprises a bend, a corrugated pipe, and a straight pipe fixedly connected from top to bottom. The bend includes an inner bend and an outer bend, the corrugated pipe includes an inner corrugated pipe and an outer corrugated pipe, and the straight pipe includes an inner straight pipe and an outer straight pipe. A connecting flange one is fixedly installed at the end of the bend away from the corrugated pipe, and a connecting flange two is fixedly installed at the end of the straight pipe away from the corrugated pipe. A plurality of reflux holes are evenly spaced along the circumference in the middle of the connecting flange one, and all of the reflux holes are connected to the double-walled tube body.

[0007] Furthermore, the dimensions of the inner bend, inner corrugated pipe, and inner straight pipe are compatible, as are the dimensions of the outer bend, outer corrugated pipe, and outer straight pipe.

[0008] Furthermore, a through hole is provided in the middle of the connecting flange to fit the inner bend. The diameter of the through hole is adapted to the size of the inner bend, and the through hole is connected to the inner bend.

[0009] Furthermore, the middle part of the connecting flange two is fitted with the inner straight pipe through a through hole two. The diameter of the through hole two is adapted to the size of the inner straight pipe, and the through hole two is connected to the inner straight pipe.

[0010] Furthermore, through hole one is connected to through inner layer bend, inner layer corrugated pipe, inner layer straight pipe and through hole two.

[0011] Furthermore, the connecting flange has a number of bolt holes evenly spaced along its circumference, and these bolt holes are located outside the number of return holes.

[0012] Furthermore, the connecting flange 2 has several bolt holes 2 that are evenly spaced and penetrated along its circumference.

[0013] Furthermore, the connecting flange has several return holes with several return channels, and the ends of the return channels away from the return holes extend to the space between the inner and outer bends.

[0014] Furthermore, fluororubber gasket 1 and fluororubber gasket 2 are respectively fixedly installed on the side of connecting flange 1 away from the bend and the side of connecting flange 2 away from the straight pipe. Fluororubber gasket 1 has several openings through several reflux holes, through holes 1 and several bolt holes 1, and fluororubber gasket 2 has several openings through several through holes 2 and several bolt holes 2.

[0015] Furthermore, the bends, straight pipes, connecting flange one, and connecting flange two are all made of 316L stainless steel, while the corrugated pipes are made of nickel-based alloy.

[0016] The beneficial effects of this utility model are:

[0017] This invention utilizes corrugated pipes to compensate for elongation or shortening deformation during the installation and operation of the pipe assembly, preventing deformation of the bends and straight pipes and ensuring the stability of the pipe assembly during installation and operation. The inclusion of inner and outer bends, inner and outer corrugated pipes, and inner and outer straight pipes effectively prevents methanol leakage, ensuring safe use. Furthermore, the inclusion of several reflux holes allows leaked methanol to be collected within the double-walled pipe body, preventing environmental pollution. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present utility model;

[0019] Figure 2 This is a schematic diagram of the longitudinal section structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model from a bottom view.

[0021] In the diagram: 1. Connecting flange one; 2. Inner bend; 3. Outer bend; 4. Inner bellows; 5. Outer bellows; 6. Inner straight pipe; 7. Connecting flange two; 8. Outer straight pipe; 9. Return hole; 10. Through hole one; 11. Through hole two; 12. Return channel; 13. Bolt hole one; 14. Bolt hole two; 15. Fluororubber gasket one; 16. Fluororubber gasket two. Detailed Implementation

[0022] The present invention will now be described and explained in detail with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figure 1-3 As shown, the flexible tube assembly for alcohol rails includes a double-walled tube body, which includes a bend, a corrugated pipe, and a straight pipe fixedly connected from top to bottom. The bend includes an inner bend 2 and an outer bend 3, the corrugated pipe includes an inner corrugated pipe 4 and an outer corrugated pipe 5, and the straight pipe includes an inner straight pipe 6 and an outer straight pipe 8. A connecting flange 1 is fixedly installed at the end of the bend away from the corrugated pipe, and a connecting flange 2 7 is fixedly installed at the end of the straight pipe away from the corrugated pipe. A plurality of return holes 9 are evenly spaced along the circumference in the middle of the connecting flange 1, and the plurality of return holes 9 are all connected to the double-walled tube body.

[0025] The pipe assembly is fixedly connected to the methanol rail via connecting flange 1, and to external equipment via connecting flange 2 7. Bends, bellows, and straight pipes are fixedly connected by welding. The bellows absorb installation deformation, preventing damage to parts. The reflux hole 9 has a cylindrical structure with a diameter of 2.8-3.2mm. Notably, the reflux hole 9 can be replaced with a spiral guide channel, achieving the same effect. The bellows compensate for elongation or shortening deformation during the installation and operation of the pipe assembly, preventing deformation of the bends and straight pipes and ensuring the stability of the pipe assembly during installation and operation. The inner bend 2 and outer bend 3, inner bellows 4 and outer bellows 5, and inner straight pipe 6 and outer straight pipe 8 effectively prevent methanol leakage, ensuring safe use. Several reflux holes 9 collect leaked methanol into the double-walled pipe body, preventing environmental pollution.

[0026] The dimensions of the inner bend 2, inner corrugated pipe 4, and inner straight pipe 6 are compatible, as are the dimensions of the outer bend 3, outer corrugated pipe 5, and outer straight pipe 8.

[0027] The middle part of the connecting flange 1 is fitted with the inner bend 2, and a through hole 10 is provided. The diameter of the through hole 10 is adapted to the size of the inner bend 2, and the through hole 10 and the inner bend 2 are connected.

[0028] The middle part of the connecting flange 2 7 is fitted with the inner straight pipe 6 through a through hole 2 11. The diameter of the through hole 2 11 is adapted to the size of the inner straight pipe 6, and the through hole 2 11 is connected to the inner straight pipe 6.

[0029] Through hole 10 is connected to the inner layer bend 2, the inner layer corrugated pipe 4, the inner layer straight pipe 6 and through hole 11.

[0030] With the above configuration, the bends, corrugated pipes, and straight pipes are all equipped with a double-layer structure with inner and outer layers. Furthermore, the through hole 10 is connected to the inner bend 2, the inner corrugated pipe 4, the inner straight pipe 6, and the through hole 11, which can improve the overall sealing performance and stability of the double-walled pipe body during installation and operation.

[0031] The connecting flange 1 has a number of bolt holes 13 that are evenly spaced along the circumference and are located outside the number of return holes 9.

[0032] The connecting flange 27 has several bolt holes 214 that are evenly spaced and penetrate the circumference.

[0033] With the above configuration, connecting flange 1 and connecting flange 7 are fixedly connected to the alcohol rail and external equipment through several bolt holes 13 and several bolt holes 14, respectively.

[0034] The connecting flange 1 has several return holes 9 and several return channels 12. The ends of the several return channels 12 away from the return holes 9 extend to the space between the inner bend 2 and the outer bend 3.

[0035] With the above-mentioned setup, and through the coordinated leak-proof design of the reflux hole 9 and the double-walled pipe, when a leak occurs at the connection between the methanol rail or pipe assembly and the external equipment, the leaked methanol can flow through several reflux holes 9 and several reflux channels 12 to the inner bend 2 and the outer bend 3 for centralized treatment, thus avoiding environmental pollution.

[0036] Fluororubber gasket 15 and fluororubber gasket 26 are respectively fixedly installed on the side of connecting flange 1 away from the bend and the side of connecting flange 2 7 away from the straight pipe. Fluororubber gasket 15 has several openings through several reflux holes 9, through holes 10 and bolt holes 13. Fluororubber gasket 2 16 has several openings through several through holes 11 and bolt holes 14.

[0037] With the above configuration, fluororubber gasket 15 and fluororubber gasket 2 have strong resistance to methanol corrosion and sealing performance. Fluororubber gasket 15 and fluororubber gasket 2 are provided with several openings, which can ensure the stable transportation of methanol and the stable connection process between connecting flange 1 and connecting flange 2 and the methanol rail and external equipment, respectively. Furthermore, leaked methanol can be easily collected through the return hole 9.

[0038] The elbows, straight pipes, connecting flange 1 and connecting flange 2 are all made of 316L stainless steel, while the bellows are made of nickel-based alloy.

[0039] Through the above settings, the use of 316L stainless steel can improve the corrosion resistance of bends, straight pipes, connecting flange 1 and connecting flange 2, ensuring the sealing performance of the double-walled pipe body; the use of nickel-based alloy can ensure the corrosion resistance of the bellows and improve its resistance to deformation; it is worth noting that the bellows can be replaced with flexible metal hoses, and the same effect can still be achieved.

Claims

1. An alcohol rail flexible conduit assembly, comprising a double-walled tube body, characterized in that, The double-walled pipe body includes a bend, a corrugated pipe and a straight pipe that are fixedly connected from top to bottom. The bend includes an inner bend (2) and an outer bend (3). The corrugated pipe includes an inner corrugated pipe (4) and an outer corrugated pipe (5). The straight pipe includes an inner straight pipe (6) and an outer straight pipe (8). A connecting flange one (1) is fixedly installed at the end of the bend away from the corrugated pipe. A connecting flange two (7) is fixedly installed at the end of the straight pipe away from the corrugated pipe. Several return holes (9) are evenly and spaced along the circumference in the middle of the connecting flange one (1). All the return holes (9) are connected to the double-walled pipe body.

2. The alcohol rail flexible connector assembly according to claim 1, characterized in that, The dimensions of the inner bend (2), inner corrugated pipe (4) and inner straight pipe (6) are compatible, and the dimensions of the outer bend (3), outer corrugated pipe (5) and outer straight pipe (8) are compatible.

3. The alcohol rail flexible connector assembly according to claim 2, characterized in that, The middle part of the connecting flange (1) is fitted with the inner bend (2) through which a through hole (10) is opened. The diameter of the through hole (10) is compatible with the size of the inner bend (2), and the through hole (10) and the inner bend (2) are connected.

4. The alcohol rail flexible connector assembly according to claim 3, characterized in that, The middle part of the connecting flange (7) is fitted with the inner straight pipe (6) through which a through hole (11) is opened. The diameter of the through hole (11) is compatible with the size of the inner straight pipe (6), and the through hole (11) and the inner straight pipe (6) are connected.

5. The alcohol rail flexible connector assembly according to claim 4, characterized in that, Through hole one (10) is connected to the inner layer bend (2), inner layer corrugated pipe (4), inner layer straight pipe (6) and through hole two (11).

6. The alcohol rail flexible connector assembly according to claim 1, characterized in that, The connecting flange (1) has several bolt holes (13) evenly spaced along the circumference, and the bolt holes (13) are located outside the several return holes (9).

7. The alcohol rail flexible connector assembly according to claim 1, characterized in that, The connecting flange 2 (7) has several bolt holes 2 (14) evenly spaced along its circumference.

8. The alcohol rail flexible connector assembly according to claim 1, characterized in that, The connecting flange (1) is fitted with several return holes (9) and has several return channels (12). The ends of the several return channels (12) away from the return holes (9) all extend to the space between the inner bend (2) and the outer bend (3).

9. The alcohol rail flexible connector assembly according to claim 1, characterized in that, Fluororubber gasket 1 (15) and fluororubber gasket 2 (16) are respectively fixedly installed on the side of connecting flange 1 (1) away from the bend and the side of connecting flange 2 (7) away from the straight pipe. Fluororubber gasket 1 (15) is provided with several openings through several reflux holes (9), through holes 1 (10) and several bolt holes 1 (13). Fluororubber gasket 2 (16) is provided with several openings through several openings through several through holes 2 (11) and several bolt holes 2 (14).

10. The alcohol rail flexible connector assembly according to claim 1, characterized in that, The materials of the bends, straight pipes, connecting flange one (1) and connecting flange two (7) are all 316L stainless steel, and the material of the bellows is nickel-based alloy.

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