Reinforced thermoplastic plastic composite pipe for hydrogen conveying

Abstract

The utility model relates to the technical field of pipelines, and discloses a reinforced thermoplastic plastic composite pipe for hydrogen delivery, which comprises two outer protective layers, reinforcing layers are fixedly connected to the tops of the inner walls of the two outer protective layers, and lining layers are fixedly connected to the tops of the inner walls of the two reinforcing layers. Micro pressure sensors are fixedly connected to the outer surfaces of the two reinforcing layers, connecting hoops are arranged on the outer surfaces of the two outer protection layers, and bolts are in threaded connection to the tops of the two connecting hoops. According to the utility model, the micro pressure sensor is arranged on the outer surface of the enhancement layer, the micro pressure sensor wraps the enhancement layer in a circular ring shape, and the gas sensor is arranged at the bottom of the outer protection layer, so that when the pipeline is damaged, the internal air pressure is changed or when the gas sensor monitors hydrogen, feedback is carried out; the problem that the sealing degree of the pipeline cannot be monitored in the hydrogen transportation process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline technical field especially relates to a kind of reinforced thermoplastic plastic composite pipe for hydrogen transport. BACKGROUND

[0002] The reinforced thermoplastic plastic composite pipe for hydrogen transport is used in hydrogenation station, for transporting hydrogen from storage equipment to hydrogenation machine, providing fuel for fuel cell vehicle, and can also be used to build hydrogen transport pipe network, realize long-distance transmission of hydrogen between different regions, connect hydrogen production base and consumption terminal, such as industrial park, city gas system.

[0003] The existing reinforced thermoplastic plastic composite pipe for hydrogen transport is composed of inner liner, reinforcing layer and outer protective layer, which is used to provide stable transport carrier in hydrogen transport. Although it can meet the transport demand to some extent, it has shortcomings in leakage prevention monitoring, and cannot monitor the pipeline state in real time and give timely warning. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a reinforced thermoplastic plastic composite pipe for hydrogen transport, which aims to solve the problem of monitoring the sealing degree of the pipeline during hydrogen transport.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a reinforced thermoplastic plastic composite pipe for hydrogen transport, comprising two outer protective layers, two inner liners fixedly connected to the inner wall top of the two outer protective layers, two reinforcing layers fixedly connected to the inner wall top of the two inner liners, two micro pressure sensors fixedly connected to the outer surface of the two reinforcing layers, two connecting clamps provided on the outer surface of the two outer protective layers, two bolts threadedly connected to the top of the two connecting clamps, two gas sensors fixedly connected to the bottom of the two connecting clamps, two first connecting rings provided on the outer surface of the two outer protective layers, four second connecting rings provided on the top of the four first connecting rings, and a connecting rod threadedly connected between adjacent first connecting ring and second connecting ring. The outer protective layer is provided with a quick disassembly assembly.

[0006] Preferably, the quick disassembly assembly comprises a first connecting frame fixedly connected between the first connecting frame and the left outer protective layer, a plurality of first connecting blocks fixedly connected to the outer surface of the first connecting frame, a second connecting frame provided on the right side of the first connecting frame, a plurality of second connecting blocks fixedly connected to the outer surface of the second connecting frame, a connecting bolt rotatably connected to the outer surface of the second connecting block, and a connecting piece threadedly connected to the left side of the connecting bolt.

[0007] Preferably, the connecting clamps are tightly attached between the connecting clamps and the outer protective layer, and the connecting clamps are fixed on the outer protective layer by bolts.

[0008] Preferably, the first connecting ring and the second connecting ring are tightly attached between the outer protective layer, and the first connecting ring and the second connecting ring are connected together through the connecting rod.

[0009] Preferably, a sliding groove is arranged on the outer surface of the outer protective layer, and the sliding groove is slidingly connected between the second connecting frame.

[0010] Preferably, the connecting bolt is tightly attached between the first connecting block, and the connecting piece is tightly attached between the first connecting block.

[0011] Preferably, the first connecting frame is located between the left outer protective layer and the second connecting frame, and the first connecting frame is tightly attached between the right side of the second connecting frame and the right inner wall of the second connecting frame.

[0012] Preferably, the left inner lining layer, the reinforcing layer and the outer protective layer are tightly attached between the right inner lining layer, the reinforcing layer and the outer protective layer.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the micro pressure sensor is arranged on the outer surface of the reinforcing layer, the micro pressure sensor is in the form of a ring and wraps the reinforcing layer, and the gas sensor is arranged at the bottom of the outer protective layer. When the pipeline is damaged and the internal gas pressure changes or when the gas sensor detects hydrogen, the two sensors feed back. Thus, the problem that the sealing degree of the pipeline cannot be monitored during hydrogen transportation is solved.

[0015] 2. In the utility model, the first connecting frame and the second connecting frame are arranged at the joint of the two pipelines. During installation, the first connecting frame is inserted between the right pipeline and the second connecting frame, and the connecting piece is twisted to fix the first connecting block and the second connecting frame and adjust the tightness of the two pipelines. Thus, the problem that the pipeline for hydrogen transportation is difficult to disassemble and assemble during maintenance is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of the reinforced thermoplastic plastic composite pipe for hydrogen transportation is provided for the utility model;

[0017] Figure 2 A connecting rod schematic view of the reinforced thermoplastic plastic composite pipe for hydrogen transportation is provided for the utility model;

[0018] Figure 3 A gas sensor schematic view of the reinforced thermoplastic plastic composite pipe for hydrogen transportation is provided for the utility model;

[0019] Figure 4 A first connecting frame schematic view of the reinforced thermoplastic plastic composite pipe for hydrogen transportation is provided for the utility model;

[0020] Figure 5 The utility model provides a kind of enhanced thermoplastic plastic composite pipe's connecting bolt schematic diagram for hydrogen delivery.

[0021] Legend:

[0022] 1, outer protective layer;2, reinforcing layer;3, inner liner;4, micro pressure sensor;5, connecting clamp;6, gas sensor;7, first connecting ring;8, second connecting ring;9, connecting rod;10, bolt;11, first connecting frame;12, second connecting frame;13, first connecting block;14, second connecting block;15, connecting bolt;16, connecting piece;17, chute. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the specification of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Referring to Figures 1-3 , the utility model provides an embodiment: a kind of enhanced thermoplastic plastic composite pipe for hydrogen delivery, including two outer protective layers 1, two outer protective layers 1 inner wall top are all fixedly connected with reinforcing layer 2, two reinforcing layer 2 inner wall top are all fixedly connected with inner liner 3, two reinforcing layer 2 outer surfaces are fixedly connected with micro pressure sensor 4, two outer protective layers 1 outer surfaces are all provided with connecting clamp 5, two connecting clamps 5 top are all screw-connected with bolt 10, two connecting clamps 5 bottom are all fixedly connected with gas sensor 6, two outer protective layers 1 outer surfaces are all provided with two first connecting rings 7, four first connecting rings 7 top are all provided with second connecting ring 8, screw-connected with connecting rod 9 between adjacent first connecting ring 7 and second connecting ring 8, outer protective layer 1 is provided with quick dismounting assembly.

[0025] Specifically, in the hydrogen transportation process, hydrogen is in direct contact with the inner lining layer 3, the pipeline increases the stability of the pipeline through the reinforcing layer 2, and the outer protective layer 1 prevents external damage to the pipeline, and when the pipeline is damaged, the internal hydrogen transportation is disturbed, so that the data monitored by the micro pressure sensor 4 arranged on the reinforcing layer 2 changes, and a signal is sent to the terminal device, and when the pipeline is damaged and hydrogen leaks, the gas sensor 6 arranged on the outer protective layer 1 also sends a signal to the terminal device after monitoring. Since the micro pressure sensor 4 and the gas sensor 6 are arranged on each section of the pipeline, when both send abnormal signals, the damaged part can be quickly and accurately located, the repair time is saved, and the problem that the pipeline sealing degree cannot be monitored during hydrogen transportation is solved

[0026] With reference to Figure 4 and Figure 5 , the quick disassembly assembly comprises a first connecting frame 11 fixedly connected between the left outer protective layer 1, a plurality of first connecting blocks 13 fixedly connected to the outer surface of the first connecting frame 11 are uniformly distributed, a second connecting frame 12 is arranged on the right side of the first connecting frame 11, a plurality of second connecting blocks 14 fixedly connected to the outer surface of the second connecting frame 12 are uniformly distributed, a connecting bolt 15 is rotatably connected to the outer surface of the second connecting block 14, and a connecting piece 16 is threadedly connected to the left side of the connecting bolt 15.

[0027] Specifically, the first connecting frame 11 and the second connecting frame 12 are arranged at the ends of the pipelines on the left and right sides, when the two pipelines are installed, the left pipeline is inserted into the second connecting frame 12 through the first connecting frame 11, the left pipeline is directly and closely attached to the right pipeline, and the first connecting frame 11 is inserted between the second connecting frame 12 and the right pipeline. At this time, after the connecting bolt 15 is pushed to the left and clamped on the first connecting block 13, the connecting piece 16 is rotated and tightened to clamp the first connecting block 13 and the second connecting block 14, so that the two pipelines are closely attached at the joint. When disassembling, only the connecting piece 16 needs to be loosened, the connecting bolt 15 is loosened to clamp the first connecting block 13, and the two pipelines can be separated, thereby solving the problem of troublesome disassembly of the hydrogen conveying pipeline during maintenance.

[0028] With reference to Figure 3 , the connecting clamp 5 is closely attached to the outer protective layer 1, and the connecting clamp 5 is fixed to the outer protective layer 1 by the bolt 10.

[0029] Specifically, the gas sensor 6 is installed at a position, and is moved by adjusting the position of the connecting clamp 5.

[0030] With reference to Figure 2 , the first connecting ring 7 and the second connecting ring 8 are closely attached to the outer protective layer 1, and the first connecting ring 7 and the second connecting ring 8 are connected together by the connecting rod 9.

[0031] Specifically, the pipeline is fixed as a whole by the connecting rod 9, the first connecting ring 7 and the second connecting ring 8, and is installed by hoisting.

[0032] Referring to Figure 4 , the outer surface of the outer protective layer 1 is provided with a sliding groove 17, and the sliding groove 17 is in sliding connection with the second connecting frame 12.

[0033] Specifically, when installing two pipelines, the right pipeline can be aligned with the left pipeline first, the first connecting frame 11 is sleeved on the right pipeline, and then the second connecting frame 12 is sleeved on the first connecting frame 11 by moving to the right, and then the installation accuracy is ensured.

[0034] Referring to Figure 5 , the connecting bolt 15 is tightly fitted between the first connecting block 13, and the connecting piece 16 is tightly fitted between the first connecting block 13.

[0035] Specifically, when installing, the connecting bolt 15 is rotated from the right side to the left side, and after being clamped on the first connecting block 13, the connecting piece 16 is tightened to the right until it tightly abuts against the first connecting block 13, and the clamping is completed.

[0036] Referring to Figure 4 and Figure 5 , the first connecting frame 11 is located between the left outer protective layer 1 and the second connecting frame 12, and the right side of the first connecting frame 11 is tightly fitted with the right side of the inner wall of the second connecting frame 12.

[0037] Specifically, the first connecting frame 11 is sleeved on the right outer protective layer 1, and after the second connecting frame 12 moves to the right, it is sleeved on the first connecting frame 11, and the first connecting frame 11 is clamped between the right outer protective layer 1 and the second connecting frame 12.

[0038] Referring to Figure 1 and Figure 4 , the left inner lining layer 3, the reinforcing layer 2 and the outer protective layer 1 are tightly fitted with the right left inner lining layer 3, the reinforcing layer 2 and the outer protective layer 1.

[0039] Specifically, after installation, the distance between the left pipeline and the right pipeline is shortened by rotating the connecting piece 16, and after being tightened, the two pipeline end points are tightly fitted, and the fixing is completed.

[0040] Working principle: in the hydrogen transportation process, hydrogen is in direct contact with the inner lining layer 3, the pipeline passes through the reinforcing layer 2 to increase the stability of the pipeline, and then the outer protective layer 1 prevents the damage of the pipeline from the outside, and when the pipeline is damaged, the internal hydrogen transportation is disturbed, so that the data monitored by the micro pressure sensor 4 arranged on the reinforcing layer 2 changes, and the terminal device sends a signal, and when the pipeline is damaged and hydrogen leakage occurs, the gas sensor 6 arranged on the outer protective layer 1 also sends a signal to the terminal device, because the micro pressure sensor 4 and the gas sensor 6 are arranged on each section of the pipeline, when the two send abnormal signals, the damaged part can be quickly and accurately located, the pipeline is fixed by the connecting rod 9, the first connecting ring 7 and the second connecting ring 8, and is installed by hoisting;

[0041] When installing two pipelines, the left pipeline is inserted into the first connecting frame 11 into the second connecting frame 12, the left pipeline is directly and closely attached to the right pipeline, and the first connecting frame 11 is inserted between the second connecting frame 12 and the right pipeline, at this time, after the connecting bolt 15 is pushed to the left and clamped on the first connecting block 13, the connecting piece 16 is rotated and tightened to clamp the first connecting block 13 and the second connecting block 14, so that the two pipelines are also closely attached at the joint, and when disassembling, only the connecting piece 16 needs to be loosened, and the connecting bolt 15 is loosened to clamp the first connecting block 13, so that the two pipelines can be separated.

[0042] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. Reinforced thermoplastic composite pipe for hydrogen gas transport comprising two outer protective layers (1), characterized in that: The inner wall top of each of the two outer protective layers (1) is fixedly connected with a reinforcing layer (2), the inner wall top of each of the two reinforcing layers (2) is fixedly connected with an inner lining layer (3), the outer surface of each of the two reinforcing layers (2) is fixedly connected with a micro pressure sensor (4), the outer surface of each of the two outer protective layers (1) is provided with a connecting clamp (5), the top of each of the two connecting clamps (5) is threadedly connected with a bolt (10), the bottom of each of the two connecting clamps (5) is fixedly connected with a gas sensor (6), the outer surface of each of the two outer protective layers (1) is provided with two first connecting rings (7), the top of each of the four first connecting rings (7) is provided with a second connecting ring (8), the first connecting ring (7) and the second connecting ring (8) adjacent to each other are threadedly connected with a connecting rod (9), and the outer protective layer (1) is provided with a quick dismounting assembly.

2. The reinforced thermoplastic composite pipe for hydrogen gas transmission according to claim 1, characterized by: The quick dismounting assembly comprises a first connecting frame (11) which is fixedly connected between the left outer protective layer (1), the outer surface of the first connecting frame (11) is fixedly connected with uniformly distributed first connecting blocks (13), the right side of the first connecting frame (11) is provided with a second connecting frame (12), the outer surface of the second connecting frame (12) is fixedly connected with uniformly distributed second connecting blocks (14), the outer surface of each of the second connecting blocks (14) is rotatably connected with a connecting bolt (15), and the left side of the connecting bolt (15) is threadedly connected with a connecting piece (16).

3. The reinforced thermoplastic composite pipe for hydrogen gas transmission according to claim 1, characterized by: The connecting clamp (5) is tightly attached to the outer protective layer (1), and the connecting clamp (5) is fixed to the outer protective layer (1) by the bolt (10).

4. The reinforced thermoplastic composite pipe for hydrogen gas transmission according to claim 1, characterized by: The first connecting ring (7) and the second connecting ring (8) are tightly attached to the outer protective layer (1), and the first connecting ring (7) and the second connecting ring (8) are connected together by the connecting rod (9).

5. The reinforced thermoplastic composite pipe for hydrogen gas transmission according to claim 1, characterized by: The outer surface of the outer protective layer (1) is provided with a sliding groove (17), and the sliding groove (17) is slidably connected with the second connecting frame (12).

6. The reinforced thermoplastic composite pipe for hydrogen gas transmission according to claim 2, characterized by: The connecting bolt (15) is tightly attached to the first connecting block (13), and the connecting piece (16) is tightly attached to the first connecting block (13).

7. The reinforced thermoplastic composite pipe for hydrogen gas transmission according to claim 2, characterized by: The first connecting frame (11) is located between the left outer protective layer (1) and the second connecting frame (12), and the right side of the first connecting frame (11) is tightly attached to the right inner wall of the second connecting frame (12).

8. The reinforced thermoplastic composite pipe for hydrogen gas transmission according to claim 1, characterized by: The left inner lining layer (3), the reinforcing layer (2) and the outer protective layer (1) are tightly attached to the right inner lining layer (3), the reinforcing layer (2) and the outer protective layer (1).

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