Pipeline connecting assembly, pipeline and hydrogen production equipment
Through the pipeline connection components composed of male joints, female joints and locking nuts, the problems of small spaces and high pressure in hydrogen production equipment are solved, and efficient and reliable pipeline connections and simplified maintenance processes are achieved.
Patent Information
- Application Number
- CN202422621770.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-29
AI Technical Summary
There is a problem that the pipeline connection in the hydrogen production equipment is difficult to arrange the narrow space and cannot withstand high pressure.
The pipe connection assembly consisting of male joints, female joints and locking nuts is used to achieve rapid connection and separation of the pipes through threaded connections, and the sealing ring and groove structure ensures sealing and stability.
It realizes efficient and reliable pipeline connections in a small space, can withstand high pressure, simplifies maintenance and component replacement of hydrogen production equipment, and reduces maintenance costs.
Smart Images
Figure CN223215919U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen production equipment, in particular to a pipeline connection component, a pipeline and hydrogen production equipment. Background Art
[0002] Hydrogen production equipment typically includes multiple components, each of which completes the various hydrogen production processes and enables hydrogen collection and acquisition to meet demand. To facilitate the production and fabrication of these components, they are typically connected by pipes to facilitate the flow of fluid between them.
[0003] However, due to the particularity of hydrogen production equipment, the layout space of the pipelines in the hydrogen production equipment is very compact, and the reserved space for pipeline connection may be very narrow. The flanges conventionally used to connect pipelines cannot adapt to the narrow space in the hydrogen production equipment, and the use of welding technology to connect pipelines is also difficult to provide sufficient welding operation space. The use of adhesives, clamps, etc. for pipeline connection cannot withstand the high pressure of the pipelines of the hydrogen production equipment. Utility Model Content
[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a pipeline connection assembly, a pipeline, and a hydrogen production device, which can solve the problem of pipeline connection in a narrow space while being able to withstand high pressure.
[0005] In the first aspect, the solution of the utility model to solve its technical problems is:
[0006] A pipeline connection assembly is applied to a hydrogen production equipment, wherein the hydrogen production equipment is provided with a plurality of hydrogen production components, and the pipeline connection assembly comprises:
[0007] A male connector having a first through hole extending through both end surfaces of the male connector along a first direction; one end of the male connector along the first direction being a first connecting end, the first connecting end being used to connect to one of the hydrogen-producing components; and the other end being provided with a first connecting boss having an outer circumference provided with an external thread structure.
[0008] A female connector having a second through hole, the second through hole passing through both end surfaces of the female connector along the first direction, one end of the female connector along the first direction being a second connecting pipe end, the second connecting pipe end being used to connect to another hydrogen-producing component, and the other end being provided with a second connecting boss;
[0009] The locking nut is provided with a third through hole, the third through hole penetrating through both end surfaces of the locking nut along the first direction, a limit platform is provided on the inner wall of one end of the third through hole along the first direction, the limit platform protrudes toward the central axis of the locking nut, and an internal thread structure is provided on the inner wall of the other end of the third through hole along the first direction;
[0010] The female connector is passed through the third through hole, one end of the second connecting boss abuts against the first connecting boss, and the other end abuts against the limit platform, the internal thread structure and the external thread structure are threadedly connected, the first connecting pipe end and the second connecting pipe end are respectively located on both sides of the locking nut along the first direction, and the first through hole and the second through hole are connected to each other.
[0011] The present invention has at least the following beneficial effects: the male connector and the female connector are respectively connected to the pipelines of different hydrogen-producing components, and the connection and separation between the different hydrogen-producing components can be achieved by rotating the locking nut. The operation is simple and quick, which is conducive to the independent maintenance and replacement of the hydrogen-producing components and reduces the maintenance cost of the hydrogen-producing equipment. Moreover, the pipeline connection assembly can withstand the high pressure of the pipeline in the hydrogen-producing equipment, and the pipeline connection assembly occupies a small space, which can adapt to the pipeline connection with tight space arrangement in the hydrogen-producing equipment.
[0012] As a further improvement to the above technical solution, the pipe connection assembly further includes a sealing ring. A sealing groove is provided on the side wall of the first connecting boss facing the second connecting boss. The sealing ring is disposed within the sealing groove, and the second connecting boss abuts the sealing ring. The sealing ring provides a seal and increases the reliability of the pipe connection.
[0013] As a further improvement to the above technical solution, the outer wall surface of the middle portion of the male connector is provided with a plurality of grooves, each having a flat surface. The grooves provide a position for the operator to secure the male connector, preventing the operator's hand or clamping tool from slipping against the outer wall surface of the male connector.
[0014] As a further improvement to the above technical solution, a fixing portion is provided in the middle of the male connector. The outer diameter of the fixing portion is larger than that of the first connecting pipe end and smaller than that of the first connecting boss. The slot is opened toward one side of the first connecting pipe end. This arrangement facilitates the formation of the slot on the outer wall of the male connector and simplifies the processing and manufacturing of the male connector.
[0015] As a further improvement to the above technical solution, two grooves are provided, and the two grooves are symmetrically arranged on the outer wall of the male connector relative to the central axis of the male connector. The provision of two symmetrical grooves makes it easier to secure the male connector by hand or with pliers, preventing the male connector from rotating with the locking nut.
[0016] In a second aspect, a pipeline is applied to a hydrogen production equipment, wherein the hydrogen production equipment is provided with a plurality of hydrogen production components, and the pipeline includes a first pipe body, a second pipe body, and a pipeline connection assembly as described in any one of the technical solutions in the first aspect above, wherein one end of the first pipe body is welded to the first connecting pipe end of the pipeline connection assembly, and the other end of the first pipe body is connected to one of the hydrogen production components, one end of the second pipe body is welded to the second connecting pipe end of the pipeline connection assembly, and the other end of the second pipe body is connected to another of the hydrogen production components.
[0017] Since the pipe connection assembly occupies a small space, it is convenient for arranging pipes in a small space. Moreover, the first pipe body and the second pipe body can be connected or separated by rotating the locking nut. The operation is simple, which is convenient for connecting and disconnecting different hydrogen production components in the hydrogen production equipment and for individually repairing or replacing hydrogen production components. In addition, the pipe ring can withstand high pressure, which is convenient for the fluid flow of each hydrogen production component.
[0018] As a further improvement to the above technical solution, the pipeline further includes a temperature measuring element connected to the first or second tube body and configured to measure the temperature of the medium within the first or second tube body. The provision of the temperature measuring element facilitates operator awareness of the temperature of the medium within the pipeline. When the temperature is too high or too low, operators can promptly adjust the corresponding hydrogen production components of the hydrogen production equipment, thereby improving the safety of the hydrogen production process.
[0019] As a further improvement to the above technical solution, the pipeline further includes a temperature sleeve connected to the side wall of the first tube body or the side wall of the second tube body and sleeved over the outside of the temperature measuring element. The temperature sleeve protects the temperature measuring element and can withstand the pressure and corrosion of the measured medium.
[0020] As a further improvement of the above technical solution, the first pipe body is a straight pipe or a curved pipe, and the second pipe body is a straight pipe or a curved pipe. The first pipe body and the second pipe body adapt to the actual spatial layout, and the applicability of the pipeline is higher.
[0021] In a third aspect, a hydrogen production device includes a pipe connection assembly as described in any one of the technical solutions of the first aspect. Because the pipe connection assembly occupies a small space and is simple to operate, the connection of various hydrogen production components in the hydrogen production device is more flexible and convenient, and the connection is guaranteed to withstand the high pressure environment of the pipeline in the hydrogen production device. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief description of the drawings required for describing the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also derive other design solutions and drawings based on these drawings without inventive effort.
[0023] Figure 1 This is a schematic diagram of the overall structure of the pipeline connection assembly according to an embodiment of the present utility model;
[0024] Figure 2 This is a schematic diagram of the exploded structure of the pipe connection assembly according to an embodiment of the present utility model;
[0025] Figure 3 This is a schematic structural diagram of a female connector of a pipe connection assembly according to an embodiment of the present invention;
[0026] Figure 4 This is a schematic diagram of the internal structure of the female connector of the pipe connection assembly according to an embodiment of the present utility model;
[0027] Figure 5 This is a schematic structural diagram of a locking nut of a pipe connection assembly according to an embodiment of the present utility model;
[0028] Figure 6 This is a schematic diagram of the internal structure of a locking nut of a pipe connection assembly according to an embodiment of the present utility model;
[0029] Figure 7 This is a schematic structural diagram of a male connector of a pipe connection assembly according to an embodiment of the present utility model;
[0030] Figure 8 This is a schematic diagram of the internal structure of the male connector of the pipe connection assembly according to an embodiment of the present utility model;
[0031] Figure 9 This is a front view of a pipeline according to an embodiment of the present utility model;
[0032] Figure 10 It is a left side view of the pipeline according to the embodiment of the present utility model.
[0033] Figure numerals: 100, male connector; 110, first connecting boss; 111, external thread structure; 120, first connecting pipe end; 130, fixing portion; 140, cutting groove; 150, first through hole; 160, sealing groove; 200, female connector; 210, second connecting boss; 220, second connecting pipe end; 230, second through hole; 300, locking nut; 310, limiting platform; 320, internal thread structure; 330, third through hole; 400, sealing ring; 500, first tube body; 600, second tube body; 700, temperature sleeve. DETAILED DESCRIPTION
[0034] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.
[0035] In the description of the present invention, descriptions of directions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.
[0036] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.
[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0038] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without inventive effort are all within the scope of protection of the present invention. The various technical features of the present invention may be combined interchangeably as long as they do not conflict with each other.
[0039] Reference Figure 1 and Figure 2 In the first aspect, an embodiment of the present invention proposes a pipeline connection assembly, which is applied to hydrogen production equipment. The hydrogen production equipment has multiple different hydrogen production components. The pipeline connection assembly can connect the pipelines connecting different hydrogen production components in the hydrogen production equipment, making the connection between the pipelines very convenient. Moreover, the pipeline connection assembly occupies a small space, which is conducive to connecting pipelines in a narrow space and can withstand high pressure.
[0040] It is understandable that each hydrogen production component completes each process in the hydrogen production process respectively, and the hydrogen production components include but are not limited to a gas generation and separation system, a venting system, a deionized water system, and a hydrogen purification system.
[0041] In this embodiment, the pipe connection assembly includes a male connector 100, a female connector 200 and a locking nut 300. The male connector 100 and the female connector 200 are both extended along a first direction. For the convenience of description, the left and right direction is set as the first direction, and the female connector 200 is located on the left side of the male connector 100.
[0042] Reference Figure 7 and Figure 8 The male connector 100 is provided with a first through hole 150. The first through hole 150 passes through both end surfaces of the male connector 100 along the first direction, that is, the first through hole 150 passes through the left and right end surfaces of the male connector 100. One end of the male connector 100 along the first direction is a first connecting end 120, and the other end is provided with a first connecting boss 110. Specifically, the right end of the male connector 100 is the first connecting end 120, which is used to connect to one of the hydrogen production components in the hydrogen production equipment, while the left end of the male connector 100 is provided with a first connecting boss 110, the outer periphery of which is provided with an external thread structure 111.
[0043] Reference Figure 3 and Figure 4 The female connector 200 is provided with a second through hole 230. The second through hole 230 extends through both end surfaces of the female connector 200 along the first direction, that is, the second through hole 230 extends through both left and right end surfaces of the female connector 200. One end of the female connector 200 along the first direction is a second connecting end 220, and the other end is provided with a second connecting boss 210. Specifically, the left end of the female connector 200 is the second connecting end 220, which is used to connect to one of the hydrogen production components in the hydrogen production equipment, while the right end of the female connector 200 is provided with the second connecting boss 210.
[0044] Reference Figure 5 and Figure 6 The locking nut 300 is provided with a third through hole 330. The third through hole 330 passes through both end surfaces of the locking nut 300 along the first direction, that is, the third through hole 330 passes through both left and right end surfaces of the locking nut 300. A limit platform 310 is provided on the inner wall of one end of the third through hole 330 along the first direction, and an internal thread structure 320 is provided on the inner wall of the other end. Specifically, the limit platform 310 is provided on the inner wall of the left end of the third through hole 330, and the limit platform 310 protrudes toward the central axis of the locking nut 300, while the inner wall of the right end of the third through hole 330 is provided with an internal thread structure 320, which cooperates with the external thread structure 111 of the male connector 100.
[0045] Before connecting the pipe, first sleeve the locking nut 300 on the outer periphery of the female connector 200, that is, the female connector 200 is inserted into the third through hole 330 of the locking nut 300, so that the right end of the limit platform 310 of the locking nut 300 is abutted against the left end of the second connecting boss 210 of the female connector 200, and then the second connecting pipe end 220 of the female connector 200 is connected to a hydrogen-producing component by welding or other means, and the first connecting pipe end 120 of the male connector 100 is connected to another hydrogen-producing component by welding or other means.
[0046] When connecting the pipes, the first connecting boss 110 of the male connector 100, which is connected to one hydrogen-producing component, is positioned opposite the second connecting boss 210 of the female connector 200, which is connected to the other hydrogen-producing component. The locking nut 300 is then rotated, threading the internal thread structure 320 of the locking nut 300 into engagement with the external nut structure of the male connector 100 until the right end face of the second connecting boss 210 abuts the left end face of the first connecting boss 110. This completes the connection. At this point, the first connecting pipe end 120 is located to the right of the locking nut 300, and the second connecting pipe end 220 is located to the left of the locking nut 300. The first through hole 150 of the male connector 100 is in communication with the second through hole 230 of the female connector 200.
[0047] When the connection needs to be removed, the locking nut 300 is rotated to separate the internal thread structure 320 of the locking nut 300 from the external nut structure of the male connector 100, thereby directly separating the male connector 100 from the female connector 200, thereby separating the pipelines connecting two different hydrogen production components.
[0048] Connecting the pipelines of the hydrogen production equipment using the pipeline connection assembly of this embodiment can withstand the high pressure of the pipelines in the hydrogen production equipment. Moreover, the pipeline connection assembly occupies a small space and can accommodate pipelines in the hydrogen production equipment with limited space. In addition, the pipeline connection assembly of this embodiment can connect and disconnect the pipelines by rotating the locking nut 300, which greatly facilitates the installation and removal of pipelines of various hydrogen production components in the hydrogen production equipment, facilitates the independent maintenance and replacement of hydrogen production components, and reduces the maintenance cost of the hydrogen production equipment.
[0049] According to experimental tests, in this embodiment, the pipe connection assembly can withstand a pressure of up to 6.0 MPa.
[0050] In some embodiments, the pipe connection assembly also includes a sealing ring 400. A sealing groove 160 is provided on the left wall of the first connecting boss 110. The sealing ring 400 is provided in the sealing groove 160. When the male connector 100 is connected to the female connector 200, the right end face of the second connecting boss 210 abuts against the sealing ring 400.
[0051] It is understandable that the sealing ring 400 can play a sealing role, increase the reliability of the pipeline connection, and prevent the water, hydrogen, oxygen and other media flowing between the hydrogen production components from overflowing.
[0052] In some embodiments, the outer wall of the male connector 100 is provided with a plurality of grooves 140. The grooves 140 are located in the middle of the male connector 100, and the groove walls of the grooves 140 are flat. It is understood that during the rotation of the locking nut 300, it is necessary to keep the male connector 100 stable. Generally, the operator uses a hand or a clamp to fix the male connector 100 to prevent it from rotating with the locking nut 300. The grooves 140 provide a fixed position for the operator to prevent the operator's hand or clamp from slipping on the male connector 100.
[0053] In some embodiments, a fixing portion 130 is provided in the middle of the male connector 100. The outer diameter of the fixing portion 130 is larger than that of the first connecting end 120 and smaller than that of the first connecting boss 110. The slot 140 is provided to open toward one side of the first connecting end 120, i.e., toward the right side. This arrangement facilitates the provision of the slot 140 on the outer wall of the male connector 100, simplifying the manufacturing process of the male connector 100.
[0054] In this embodiment, two slots 140 are provided. These slots 140 are symmetrically arranged on the outer wall of the male connector 100. The axis of symmetry of the two slots 140 is the central axis of the male connector 100, which extends in the left-right direction. Specifically, in this embodiment, the two slots 140 are located on the front and back sides of the male connector 100. It will be appreciated that the provision of two symmetrical slots 140 makes it easier to secure the male connector 100 using hand or pliers, preventing the male connector 100 from rotating with the locking nut 300.
[0055] Secondly, refer to Figure 9 and Figure 10 The present invention provides a pipeline for use in a hydrogen production device, capable of diverting high-pressure media between various hydrogen production components of the device. The pipeline includes a first pipe body 500, a second pipe body 600, and a pipe connection assembly as provided in any one of the embodiments of the first aspect. The first pipe end 120 of the pipe connection assembly is welded to one end of the first pipe body 500, the other end of the first pipe body 500 is connected to one of the hydrogen production components, and the second pipe end 220 is welded to one end of the second pipe body 600, the other end of the second pipe body 600 is connected to another hydrogen production component.
[0056] Since the pipeline connection assembly occupies a small space, it is convenient for arranging pipelines in a small space. Moreover, by rotating the locking nut 300, the first pipe body 500 and the second pipe body 600 can be connected or separated. The operation is simple, which is convenient for connecting and disconnecting different hydrogen production components in the hydrogen production equipment and for individually repairing or replacing the hydrogen production components.
[0057] In some embodiments, the pipeline also includes a temperature measuring element, which is connected to the first tube body 500 or the second tube body 600 and is used to measure the temperature of the medium inside the first tube body 500 or the second tube body 600. This helps the operator to understand the temperature status of the medium inside the pipeline. When the temperature is too high or too low, the corresponding hydrogen production components of the hydrogen production equipment can be adjusted in time to improve the safety of the hydrogen production process.
[0058] In some embodiments, the pipeline further includes a temperature sleeve 700, which is connected to the side wall of the first tube body 500 or the side wall of the second tube body 600. It will be understood that the temperature sleeve 700 is used to protect the temperature measuring element. It is sleeved on the outside of the temperature measuring element and can be pre-installed on a device that is difficult to disassemble under pressure, that is, installed on the first tube body 500 or the second tube body 600, to withstand the pressure and corrosion of the measured medium.
[0059] In this embodiment, the temperature sleeve 700 is installed on the second tube body 600 .
[0060] It is understandable that the first tube body 500 can be a straight tube or a curved tube, and the second tube body 600 can also be a straight tube or a curved tube. The shapes of the first tube body 500 and the second tube body 600 are adjusted according to the actual layout space and are suitable for spaces with different layouts.
[0061] In this embodiment, the first tube 500 is a straight tube, one end of which is connected to the first connecting pipe end 120 and the other end is connected to a tee structure to achieve medium diversion. The other two outlets of the tee structure are respectively connected to branch pipes, both of which are straight tubes. The end of one branch pipe is connected to the male connector 100 of another pipe connection assembly, and the end of the other branch pipe is connected to a connector. The second tube 600 is a curved tube, one end of which is connected to the second connecting pipe end 220 and the other end is connected to a flange to further connect to other pipelines.
[0062] It is understandable that the ends of each branch pipe can also be connected to other pipes using the pipe connection assembly in the first aspect, and the flange connected to the second pipe body 600 can also be replaced by the pipe connection assembly in the first aspect.
[0063] In a third aspect, embodiments of the present invention provide a hydrogen production device. The hydrogen production device includes the pipeline connection assembly provided in any one of the embodiments of the first aspect. Because the pipeline connection assembly occupies a small space and is simple to operate, the connection of the various hydrogen production components in the hydrogen production device is more flexible and convenient, and the connection is guaranteed to withstand the high-pressure environment of the pipeline in the hydrogen production device.
[0064] It can be understood that the pipe connection assembly is suitable for connecting pipes with large or small connection spaces. If there is sufficient space at the connection point of the pipes, the pipes can also be connected using a connection method that can withstand high pressure, such as welding, flange connection, etc.
[0065] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A pipe connection assembly, characterized in that: Applied to hydrogen production equipment, the hydrogen production equipment is provided with multiple hydrogen production components, and the pipeline connection assembly includes: A male connector having a first through hole extending through both end surfaces of the male connector along a first direction; one end of the male connector along the first direction being a first connecting end, the first connecting end being used to connect to one of the hydrogen-producing components; and the other end being provided with a first connecting boss having an outer circumference provided with an external thread structure. A female connector having a second through hole, the second through hole passing through both end surfaces of the female connector along the first direction, one end of the female connector along the first direction being a second connecting pipe end, the second connecting pipe end being used to connect to another hydrogen-producing component, and the other end being provided with a second connecting boss; The locking nut is provided with a third through hole, the third through hole penetrating through both end surfaces of the locking nut along the first direction, a limit platform is provided on the inner wall of one end of the third through hole along the first direction, the limit platform protrudes toward the central axis of the locking nut, and an internal thread structure is provided on the inner wall of the other end of the third through hole along the first direction; The female connector is passed through the third through hole, one end of the second connecting boss abuts against the first connecting boss, and the other end abuts against the limit platform, the internal thread structure and the external thread structure are threadedly connected, the first connecting pipe end and the second connecting pipe end are respectively located on both sides of the locking nut along the first direction, and the first through hole and the second through hole are connected to each other.
2. The pipe connection assembly according to claim 1, characterized in that: The pipe connection assembly further includes a sealing ring. A sealing groove is provided on the side wall of the first connection boss facing the second connection boss. The sealing ring is arranged in the sealing groove. The second connection boss abuts against the sealing ring.
3. The pipe connection assembly according to claim 1, characterized in that: The outer wall surface of the middle part of the male connector is provided with a plurality of grooves, and the groove walls of the grooves are plane.
4. The pipe connection assembly according to claim 3, characterized in that: A fixing portion is provided in the middle of the male connector, the outer diameter of the fixing portion is larger than the outer diameter of the first connecting pipe end and smaller than the outer diameter of the first connecting boss, and the slot is opened toward one side of the first connecting pipe end.
5. The pipe connection assembly according to claim 3, characterized in that: There are two cutting grooves, and the two cutting grooves are symmetrically arranged on the outer wall surface of the male joint relative to the central axis of the male joint.
6. A pipeline, characterized in that: Applied to hydrogen production equipment, the hydrogen production equipment is provided with multiple hydrogen production components, the pipeline includes a first pipe body, a second pipe body and a pipe connection assembly according to any one of claims 1 to 5, one end of the first pipe body is welded to the first pipe end of the pipe connection assembly, the other end of the first pipe body is connected to one of the hydrogen production components, one end of the second pipe body is welded to the second pipe end of the pipe connection assembly, and the other end of the second pipe body is connected to another of the hydrogen production components.
7. The pipeline according to claim 6, characterized in that The pipeline further includes a temperature measuring element, which is connected to the first tube body or the second tube body and is used to measure the temperature of the medium inside the first tube body or the second tube body.
8. The pipeline according to claim 7, characterized in that The pipeline further includes a temperature sleeve, which is connected to the side wall surface of the first tube body or the side wall surface of the second tube body and is sleeved on the outside of the temperature measuring element.
9. The pipeline according to claim 6, characterized in that The first tube body is a straight tube or a curved tube, and the second tube body is a straight tube or a curved tube.
10. A hydrogen production device, characterized in that: The invention comprises a pipe connection assembly according to any one of claims 1 to 5.