High-pressure pipeline arrangement structure of vehicle-mounted hydrogen system of heavy truck

Abstract

The utility model relates to the technical field of fuel cells, in particular to a high-pressure pipeline arrangement structure of a vehicle-mounted hydrogen system of a heavy truck, which comprises a gas cylinder, a first fixing frame and a second fixing frame which are matched with each other are fixedly arranged on the outer side of the gas cylinder, and an arrangement structure is fixedly connected between the first fixing frame and the second fixing frame. The top surfaces of the first fixing frame and the second fixing frame are fixedly connected with limiting structures, and the whole arrangement structure is located in the middle position between the first fixing frame and the second fixing frame. The effect of limiting and fixing the gas cylinder on the inner side of the fixing frame is achieved through a limiting ring, the effect of shielding and protecting the gas cylinder from the upper position is achieved through a limiting plate arranged at the top of the fixing frame structure, and the effect of conveniently conducting sleeving protection on a connecting pipe opening in the top of the gas cylinder is achieved through a through head; and the effect of conveniently limiting and fixing the connecting pipeline at the top of the gas cylinder is achieved through the first arrangement groove.

Description

Technical Field

[0001] This utility model relates to the technical field of fuel cells, and specifically to a high-pressure pipeline layout structure for a heavy-duty truck on-board hydrogen system. Background Technology

[0002] Currently, hydrogen systems in domestic fuel cell heavy-duty trucks are rear-mounted, typically consisting of 8 to 10 gas cylinders arranged in two rows of four to five cylinders each. All cylinders are connected via a number of high-pressure pipelines and connectors to supply gas to the fuel cell, as shown in the instruction manual. Figure 1 As shown, the current solution uses multiple T-joints, where the number of high-pressure T-joints equals the number of gas cylinders. For a group of 10 cylinders, there are 10 T-joints, or 30 high-pressure pipeline sealing points, which greatly increases the potential leakage points. Furthermore, the pipeline types are too numerous and cannot be standardized; the cost is high, and installation and maintenance are difficult. To address this problem, Chinese Utility Model Application No. 202321192740.0 proposes a high-pressure pipeline layout structure for a heavy-duty truck-mounted hydrogen system. This structure includes gas cylinders for storing fuel, arranged in an array. A main inlet pipe is installed between two adjacent rows of cylinders, with a top T-joint connected to the upper end of the main inlet pipe. The top T-joint connects to the top two cylinders via branch pipes and inlet connectors. This invention reduces the risk of scratching the high-pressure pipeline during adjustments and ensures that the straight pipe dimensions of all cylinders are completely consistent, reducing leakage points in the system's high-pressure pipeline; lowering the cost of the hydrogen system; and reducing the types of high-pressure pipelines.

[0003] However, the problem with this device during use is:

[0004] When gas cylinders are connected and used through pipes and tee fittings, if the pipes and tee fittings are not properly arranged and fixed, leaks may occur in the pipes themselves or between the pipes and fittings. At the same time, the large number of pipes and fittings makes it difficult to disassemble and replace the gas cylinders later.

[0005] Therefore, this utility model proposes a high-pressure pipeline layout structure for a heavy-duty truck hydrogen system. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a high-pressure pipeline layout structure for a heavy-duty truck-mounted hydrogen system. This structure solves the following problems: In existing high-pressure pipeline layout structures for heavy-duty truck-mounted hydrogen systems, when gas cylinders are connected via pipes and tee joints, the pipes and tee joints cannot be properly arranged and fixed, which can easily lead to leaks in the pipes themselves and between the pipes and joints. Furthermore, the large number of pipes and joints makes subsequent disassembly and replacement of gas cylinders difficult.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A kind of high-pressure pipeline arrangement structure of heavy truck hydrogen system, including gas cylinder, the outside of gas cylinder is fixedly provided with the first fixed frame and the second fixed frame of matched arrangement, first fixed frame and second fixed frame are fixedly connected with arrangement structure, the top surface of first fixed frame and second fixed frame is all fixedly connected with limiting structure, arrangement structure is centrally located between first fixed frame and second fixed frame as a whole, limiting structure is vertically arranged and set multiple groups along the top surface of first fixed frame and second fixed frame, the inner surface of first fixed frame and second fixed frame is all fixedly connected with limiting ring.

[0009] Further, limiting structure is horizontally arranged as a whole, multiple groups are set according to the setting number of gas cylinder, limiting structure includes limiting plate and its surface through head and first arrangement groove, through head is vertically embedded limiting plate surface as a whole, and first arrangement groove is provided as "V" groove, and is horizontally set outside through head.

[0010] Further, limiting ring is provided as rubber semicircular ring, and outer end protrudes from the inner side of first fixed frame and second fixed frame, and the inner side surface of first fixed frame and second fixed frame is provided with arc-shaped groove corresponding to the setting position of limiting ring.

[0011] Further, arrangement structure includes fixedly connected arrangement plate and joint fixed plate, second arrangement groove is fixedly provided on the surface of arrangement plate, and joint is fixedly connected on the surface of joint fixed plate.

[0012] Further, arrangement plate is vertically arranged at the top position between first fixed frame and second fixed frame, second arrangement groove is provided as arc-shaped groove and is vertically set along the surface of arrangement plate, and joint fixed plate is provided as "T" type plate as a whole and is vertically distributed multiple groups along arrangement plate.

[0013] Further, multiple groups of joint fixed plates are arranged corresponding to gas cylinder, and joint fixed plates are distributed between each limiting structure, and joint is provided as three-way joint.

[0014] Further, first fixed frame and second fixed frame are both provided as half-enclosed rectangular frame, and the open ends of the two are connected, and first fixed frame and second fixed frame are fixed by screw connection at butt joint.

[0015] From the above technical scheme, the beneficial effects of the utility model are:

[0016] 1. Through the limiting ring, the gas cylinder is limited and fixed in the inside of the fixed frame, through the limiting plate arranged at the top of the fixed frame structure, the gas cylinder is shielded and protected from the top position, through the through head, the connecting pipe opening at the top of the gas cylinder is conveniently sleeved and protected, and through the first arrangement groove, the connecting pipeline at the top of the gas cylinder is conveniently limited and fixed.

[0017] 2. The second arrangement groove matched with the surface of the arrangement plate limits and fixes the external pipeline connected with the gas cylinder, and through the joint fixing plate matched with the joint, the connecting point between the external pipelines is supported.

[0018] 3. The first fixed frame and the second fixed frame limit and enclose the gas cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a top view of the overall structure of the present application.

[0021] Figure 2 It is a structure enlarged view of A in the present application. Figure 1

[0022] Figure 3 It is a structure enlarged view of B in the present application. Figure 1

[0023] Reference signs:

[0024] 1, first fixed frame; 2, second fixed frame; 3, gas cylinder; 4, arrangement structure; 5, limiting structure; 6, limiting plate; 7, through head; 8, first arrangement groove; 9, limiting ring; 10, arrangement plate; 11, second arrangement groove; 12, joint fixing plate; 13, joint. DETAILED DESCRIPTION

[0025] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0026] Reference is made to Figures 1-3 ​​As shown, a kind of high-pressure pipeline arrangement structure of heavy truck hydrogen system, including gas cylinder 3, the outside of gas cylinder 3 is fixedly provided with the first fixed frame 1 and the second fixed frame 2 of matched arrangement, first fixed frame 1 and the second fixed frame 2 between fixedly connected with arrangement structure 4, the top surface of first fixed frame 1 and the second fixed frame 2 is all fixedly connected with limiting structure 5, arrangement structure 4 is located between first fixed frame 1 and the second fixed frame 2 middle position as a whole, limiting structure 5 is vertically arranged and set multiple groups along the top surface of first fixed frame 1 and the second fixed frame 2, the inner surface of first fixed frame 1 and the second fixed frame 2 is all fixedly connected with limiting ring 9, when using the device, gas cylinder 3 is embedded in two groups of fixed frame structure, limiting ring 9 is limited and fixed, then limiting structure 5 is shielded and fixed from the top position of gas cylinder 3, when connecting pipeline, pipeline is completed arrangement and intercommunication connection by arrangement structure 4.

[0027] In the utility model embodiment, limiting structure 5 is horizontally set as a whole, multiple groups are set according to the setting quantity of gas cylinder 3, limiting structure 5 includes limiting plate 6 and its surface through head 7 and first arrangement groove 8, through head 7 is vertically embedded on the surface of limiting plate 6 as a whole, and first arrangement groove 8 is set as "V" groove, which is horizontally set on the outside of through head 7, limiting ring 9 is set as rubber semicircular ring, and the outer end protrudes from the inner side of first fixed frame 1 and the second fixed frame 2, the inner side surface of first fixed frame 1 and the second fixed frame 2 is provided with arc-shaped groove corresponding to the setting position of limiting ring 9, limiting ring 9 is used to limit and fix gas cylinder 3 in the inner side of fixed frame, limiting plate 6 set on the top of fixed frame structure is used to shield and protect gas cylinder 3 from the top position, through head 7 is used to conveniently sleeve and protect the connecting pipe of the top of gas cylinder 3, and first arrangement groove 8 is used to conveniently limit and fix the connecting pipeline of the top of gas cylinder 3.

[0028] When connecting the connecting pipe of the top of gas cylinder 3 and external pipeline, the external pipeline can be selectively embedded in first arrangement groove 8 according to the connecting direction, since first arrangement groove 8 is set as "V" groove, it is convenient to limit and fix the external pipeline in different directions, and when gas cylinder 3 is positioned in the inner side of fixed frame structure, limiting ring 9 is used to semi-enclose and fix gas cylinder 3, so as to conveniently fix gas cylinder 3.

[0029] The arrangement structure 4 comprises a fixedly connected arrangement plate 10 and a joint fixing plate 12, the surface of the arrangement plate 10 is fixedly provided with a second arrangement groove 11, the surface of the joint fixing plate 12 is fixedly connected with a joint 13, the arrangement plate 10 is vertically arranged at the top position between the first fixing frame 1 and the second fixing frame 2, the second arrangement groove 11 is arranged as an arc-shaped groove and is vertically arranged on the surface of the arrangement plate 10, the joint fixing plate 12 is integrally arranged as a T-shaped plate and is vertically distributed in multiple groups along the arrangement plate 10, the joint fixing plate 12 is provided with multiple groups corresponding to the gas cylinder 3, and the joint fixing plate 12 is distributed between each group of limiting structures 5, and the joint 13 is arranged as a three-way joint, the external pipeline connected with the gas cylinder 3 is limited and fixed through the cooperation of the arrangement plate 10 and the surface of the second arrangement groove 11, and the connection points between the external pipelines are supported through the cooperation of the joint fixing plate 12 and the joint 13.

[0030] When the gas cylinder 3 is connected through the external pipeline, the external pipeline is first connected with the gas cylinder 3, then multiple groups of external pipelines are interconnected through the joint 13, the connection points between the pipelines are located at the position of the joint 13, the joint fixing plate 12 supports the connection points, and after the external pipeline is connected, the external pipeline is limited and fixed by being embedded in the second arrangement groove 11 on the surface of the arrangement plate 10.

[0031] The first fixing frame 1 and the second fixing frame 2 are both arranged as half-enclosing rectangular frames, the open ends of the two frames are connected with each other, the first fixing frame 1 and the second fixing frame 2 are fixedly connected through screws at the abutting position, and the first fixing frame 1 and the second fixing frame 2 enclose and limit the gas cylinder 3.

[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A high-pressure pipeline arrangement structure of a heavy truck-mounted hydrogen system, comprising a gas cylinder (3), characterized in that: The outer side of the gas cylinder (3) is fixedly provided with a matching first fixing frame (1) and a second fixing frame (2), the first fixing frame (1) and the second fixing frame (2) are fixedly connected with an arrangement structure (4), the top surfaces of the first fixing frame (1) and the second fixing frame (2) are fixedly connected with a limiting structure (5), the arrangement structure (4) is located at the middle position between the first fixing frame (1) and the second fixing frame (2), a plurality of groups of the limiting structure (5) are arranged vertically along the top surfaces of the first fixing frame (1) and the second fixing frame (2), and the inner surfaces of the first fixing frame (1) and the second fixing frame (2) are fixedly connected with a limiting ring (9).

2. The high-pressure piping arrangement structure of a heavy-duty truck-mounted hydrogen system according to claim 1, characterized in that: The limiting structure (5) is arranged horizontally as a whole, a plurality of groups of the limiting structure (5) are arranged according to the number of the gas cylinders (3), the limiting structure (5) comprises a limiting plate (6), a through head (7) on the surface of the limiting plate (6) and a first arrangement groove (8), the through head (7) is vertically embedded on the surface of the limiting plate (6), and the first arrangement groove (8) is arranged as a "V"-shaped groove and is horizontally arranged on the outside of the through head (7).

3. The high pressure piping arrangement of a heavy duty truck on-board hydrogen system of claim 1, wherein: The limiting ring (9) is arranged as a rubber semicircular ring, the outer end of the limiting ring (9) protrudes from the inner side of the first fixing frame (1) and the second fixing frame (2), and the inner surfaces of the first fixing frame (1) and the second fixing frame (2) are provided with an arc-shaped groove corresponding to the arrangement position of the limiting ring (9).

4. The high pressure piping arrangement of a heavy duty truck on-board hydrogen system of claim 1, wherein: The arrangement structure (4) comprises an arrangement plate (10) and a joint fixing plate (12) which are fixedly connected, the surface of the arrangement plate (10) is fixedly provided with a second arrangement groove (11), and the surface of the joint fixing plate (12) is fixedly connected with a joint (13).

5. The high pressure piping arrangement of a heavy duty truck on-board hydrogen system of claim 4, wherein: The arrangement plate (10) is vertically arranged at the top position between the first fixing frame (1) and the second fixing frame (2), the second arrangement groove (11) is arranged as an arc-shaped groove and is vertically arranged on the surface of the arrangement plate (10), and the joint fixing plate (12) is arranged as a "T"-shaped plate and is vertically distributed on the arrangement plate (10).

6. The high pressure piping arrangement of a heavy duty truck on-board hydrogen system of claim 5, wherein: The joint fixing plate (12) is arranged in multiple groups corresponding to the gas cylinders (3), and the joint fixing plate (12) is distributed between each group of the limiting structure (5), and the joint (13) is arranged as a three-way joint.

7. The high pressure piping arrangement of a hydrogen system on board a heavy duty truck according to claim 1, characterized in that: The first fixing frame (1) and the second fixing frame (2) are both arranged as semi-enclosing rectangular frames, the open ends of the two frames are connected to each other, and the first fixing frame (1) and the second fixing frame (2) are fixedly connected through screws at the butt joint.

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