Positioning clamp tool for diffusion pipeline of hydrogen energy filling equipment

Abstract

The utility model relates to the technical field of bleeding pipeline positioning, aims to solve the problem that the size of a clamping sleeve pipeline does not meet the assembly requirement due to the fact that deviation exists when all pipelines are manually positioned in the prior art, and provides a bleeding pipeline positioning clamp tool of hydrogen energy filling equipment. At least two positioning blocks are mounted on the reference platform, and the positions of the positioning blocks correspond to the position of a safety valve on the hydrogen energy filling equipment; one end of the positioning block is connected with an adapter, the adapter comprises a lower joint, an upper joint and a middle connecting piece, one end of the lower joint is fixedly connected with the positioning block, the other end of the lower joint is detachably connected to the middle connecting piece, one end of the upper joint is detachably connected to the middle connecting piece, and the other end of the upper joint is detachably connected to the middle connecting piece. The other end of the upper connector is used for being fixedly connected with a pipeline. By means of the clamp tool, the positioning accuracy of the pipeline is high, errors are small, and it is guaranteed that the size of the clamping sleeve pipeline meets the assembly requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of discharge pipeline positioning, in particular to a discharge pipeline positioning fixture tool for hydrogen energy filling equipment. Background Art

[0002] The hydrogen filling and release process is the main process of the hydrogen refueling station. Among them, the release process flow is: hydrogen is safely released through the release pipeline to deal with excess hydrogen.

[0003] The safety valve vent pipeline of hydrogen filling equipment (hydrogen filling machine) mainly consists of three parts: one is the safety valve outlet end, one is the vent main pipe collection end, and the other is the sleeve pipeline. The safety valve outlet end is connected to the vent main pipe collection end through the sleeve pipeline.

[0004] Among them, the safety valve outlet uses an NPT thread-to-weld union. Since there are multiple safety valves installed on the hydrogen filling equipment, and the models and specifications of the safety valves are different, the safety valve outlets are not in the same horizontal plane after conversion through the NPT thread-to-weld union. Therefore, the size of the ferrule pipeline corresponding to each safety valve is different, and the other end of each ferrule pipeline needs to be aggregated and connected to the aggregate end of the vent main pipe after aggregation.

[0005] To achieve the above purpose, it is necessary to position each pipeline and weld a joint at one end of each pipeline for connecting to the corresponding safety valve outlet. The other end of each pipeline is aggregated and welded with a joint for connecting to the aggregate end of the relief main pipe. Subsequently, the ferrule pipeline is installed between the safety valve outlet and the aggregate end of the relief main pipe.

[0006] Currently, manual positioning of pipelines is the main method used. However, due to certain deviations in manual positioning, the size of the ferrule pipeline does not meet the assembly requirements. In addition, thermal stress during welding causes pipeline deformation, which also makes it impossible to assemble the ferrule pipeline. The ferrule pipeline cannot be inspected for assembly after welding, and needs to be assembled on the hydrogen filling equipment (hydrogen filling machine) to determine whether it meets the assembly requirements. If it does not meet the requirements, it needs to be re-positioned and re-welded, which is labor-intensive and costly. Utility Model Content

[0007] The utility model aims to provide a positioning fixture for the discharge pipeline of hydrogen filling equipment to solve the problem that the manual positioning of each pipeline in the prior art has deviations, resulting in the size of the ferrule pipeline not meeting the assembly requirements.

[0008] The utility model is realized by adopting the following technical solutions:

[0009] The utility model provides a positioning fixture for a discharge pipeline of a hydrogen energy filling device, comprising a reference platform, on which at least two positioning blocks are mounted, and the positions of the positioning blocks correspond to the positions of safety valves on the hydrogen energy filling device;

[0010] One end of the positioning block is connected to an adapter, which includes a lower connector, an upper connector and an intermediate connector. One end of the lower connector is fixedly connected to the positioning block, and the other end of the lower connector is detachably connected to the intermediate connector. One end of the upper connector is detachably connected to the intermediate connector, and the other end of the upper connector is used to be fixedly connected to the pipeline.

[0011] Among them, the height of the positioning block is determined according to the gap of the safety valve outlet end. When the safety valve outlet end is far away from the reference plane, a positioning block with a larger height is selected. Conversely, the gap between the outlet ends of each safety valve is compensated by the positioning block, so that the reference platform is used as a reference plane, and the height of each pipeline welding adapter is added to the positioning block to reach the same plane. After the welded pipeline is removed, it can be connected to the safety valve outlet end of the hydrogen filling equipment to complement and adapt. By adopting the fixture tooling of the utility model, the positioning accuracy of the pipeline is high and the error is small, ensuring that the size of the ferrule pipeline meets the assembly requirements.

[0012] As the preferred technical solution:

[0013] One end of the lower joint is welded to the positioning block, and the other end of the upper joint is welded to the pipeline.

[0014] As the preferred technical solution:

[0015] The adapter is a welded thread adapter, the intermediate connector is a nut, and the lower connector and the upper connector are connected to the nut via threads.

[0016] As the preferred technical solution:

[0017] The intermediate connection piece is not limited to being a nut, and other detachable connection methods are also possible, such as a buckle, but the threaded connection has a simple structure and is easy to operate.

[0018] As the preferred technical solution:

[0019] The positioning block is detachably connected to the reference platform.

[0020] As the preferred technical solution:

[0021] The positioning block includes a positioning ring and a positioning column. The positioning ring is located at the bottom of the positioning column. The positioning ring is used to contact the top surface of the reference platform. The positioning ring and the positioning column are integrally formed structural parts.

[0022] As the preferred technical solution:

[0023] The reference platform is provided with a plurality of positioning holes, the positioning blocks are arranged at the corresponding positioning holes, the positioning blocks are connected to the reference platform via a connecting piece, and the connecting piece passes through the positioning holes and is connected to the positioning blocks.

[0024] As the preferred technical solution:

[0025] The positioning block is a hollow structure, and one end of the connecting piece passes through the positioning hole from the bottom of the reference platform and is then inserted into the positioning block to be connected with the positioning block.

[0026] Thereby, the connection between the positioning block and the reference platform is achieved.

[0027] As the preferred technical solution:

[0028] The connecting piece is a bolt, and the interior of the positioning block is provided with an internal thread.

[0029] As the preferred technical solution:

[0030] The reference platform includes a top plate, side plates and a bottom connecting plate. The two sides of the top plate are fixedly connected with side plates, and the side plates are perpendicular to the plate surface of the top plate. The bottom ends of the side plates are respectively connected with bottom connecting plates. The bottom connecting plates are arranged horizontally and located on the outside of the side plates. The bottom connecting plates are used to connect to the welding platform.

[0031] As the preferred technical solution:

[0032] The bottom connecting plate is provided with a connecting hole, and the reference platform is fixed to the welding platform by installing a connecting piece (such as a bolt, a screw, etc.) in the connecting hole.

[0033] As the preferred technical solution:

[0034] The top plate, the side plates and the bottom connecting plate are integrally formed structural parts.

[0035] As the preferred technical solution:

[0036] The top plate, the side plates and the bottom connecting plate are connected together by welding or other fixed connection methods to form a whole.

[0037] As the preferred technical solution:

[0038] The outlet ends of the pipelines are arranged in the same plane, and the outlet ends of the pipelines are connected to a collection joint, and the collection joint is fixedly connected to the collection pipe.

[0039] As the preferred technical solution:

[0040] The outlet end of each pipeline is welded to the aggregation joint, and the aggregation joint is welded to the aggregation pipe.

[0041] As the preferred technical solution:

[0042] A summarizing positioning block is also installed on the reference platform, one end of which is connected to the welding thread adapter, which is connected to the summarizing pipe.

[0043] As the preferred technical solution:

[0044] The structure of the summary positioning block is the same as that of the positioning block.

[0045] As the preferred technical solution:

[0046] One end of the lower joint of the welding thread adapter is fixedly connected to the summary positioning block, and the other end of the lower joint is threadedly connected to the nut. One end of the upper joint of the welding thread adapter is threadedly connected to the nut, and the other end of the upper joint is fixedly connected to the summary pipe.

[0047] As the preferred technical solution:

[0048] The lower joint is welded to the aggregation positioning block, and the upper joint is welded to the aggregation pipe.

[0049] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0050] 1. The hydrogen filling equipment venting pipeline positioning fixture tooling described in the utility model is used to determine the installation position of the positioning block on the reference platform according to the position of each safety valve on the hydrogen filling machine, and the positioning block is fixed to the target position on the reference platform by bolts. Then, the welding thread adapter is welded on the positioning block, and then the corresponding pipeline is connected through the welding thread adapter, so as to realize the positioning of the pipeline corresponding to each safety valve before welding. After the pipeline is positioned, it is convenient to carry out welding operation, improve welding work efficiency, and facilitate control of pipeline welding forming accuracy.

[0051] 2. The utility model selects positioning blocks of different heights according to the gaps between the outlet ends of each safety valve, and determines the size of each pipeline while ensuring that the installation surfaces of the pipeline outlets are located in the same plane. The outlets of each pipeline are connected to the aggregation joint, thereby achieving precise positioning of each pipeline and obtaining a connected ferrule pipeline group. After the welded threaded adapter is disassembled, the connection ends of each ferrule pipeline used for connecting to the outlet end of the safety valve complement the outlet ends of each safety valve and can be connected to the corresponding outlet ends of each safety valve, ensuring that the pipeline after welding meets the installation requirements and that the size of the ferrule pipeline meets the assembly requirements, effectively improving the assembly accuracy of the pipeline, avoiding errors caused by manual positioning that make it impossible to assemble the pipeline, ensuring the interchangeability of pipelines in the same position, and improving assembly efficiency.

[0052] 3. The ferrule pipe after welding and positioning can be removed from the fixture and subsequently installed at the outlet of the safety valve and the end of the relief main pipe.

[0053] 4. After the pipeline is welded, it can be tested by fixture and assembly inspection in advance to check whether the pipeline size meets the installation requirements, further reducing the problem of welded pipelines being unable to be assembled.

[0054] 5. The utility model can also position the collection pipe through the collection positioning block and the welding thread adapter, which is convenient for subsequent assembly and can be directly connected to the collection end of the discharge main pipe through the welding thread adapter. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a structural schematic diagram of the positioning fixture tooling for the discharge pipeline of the hydrogen filling equipment described in the present utility model.

[0056] Icon: 1-reference platform, 101-top plate, 102-side plate, 103-bottom connecting plate, 104-connecting hole, 105-positioning hole, 2-positioning block, 201-positioning ring, 202-positioning column, 3-aggregate positioning block, 4-pipeline, 5-aggregate joint, 6-aggregate pipe, 7-welded thread adapter, 701-lower joint, 702-upper joint, 703-nut. DETAILED DESCRIPTION

[0057] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0058] Example 1

[0059] like Figure 1 As shown, this embodiment provides a positioning fixture for a hydrogen filling equipment discharge pipeline, comprising a reference platform 1, wherein the reference platform 1 is used to be installed on a welding platform.

[0060] The reference platform 1 includes a top plate 101, a side plate 102 and a bottom connecting plate 103. A side plate 102 is fixedly connected to both sides of the top plate 101. The side plates 102 are perpendicular to the plate surface of the top plate 101. The bottom ends of the two side plates 102 are respectively connected to a bottom connecting plate 103. The bottom connecting plates 103 are arranged horizontally and located on the outside of the side plates 102. The bottom connecting plates 103 are used to connect to the welding platform.

[0061] In this embodiment, a connecting hole 104 is opened on the bottom connecting plate 103 , and a connecting member (such as a bolt, a screw, etc.) is installed in the connecting hole 104 to fix the reference platform 1 on the welding platform.

[0062] The top plate 101, the side plates 102 and the bottom connecting plate 103 are integrally formed structural parts, such as being formed by bending the entire plate, or the top plate 101, the side plates 102 and the bottom connecting plate 103 are connected together by a fixed connection method such as welding to form a whole.

[0063] The top plate 101 is provided with a plurality of positioning holes 105. The spacing between two adjacent positioning holes 105 is selectively set according to actual conditions. The positioning holes 105 are preferably arranged at equal intervals to facilitate size control, facilitate subsequent positioning of the pipeline 4, and improve size controllability and installation convenience.

[0064] A positioning block 2 is installed on the reference platform 1, and the positioning block 2 is fixed to the top surface of the top plate 101. In this embodiment, the interior of the positioning block 2 has an internal thread, and the positioning block 2 is fixed to the top plate 101 by a bolt. During operation, one end of the bolt is passed through one of the positioning holes 105 from the bottom surface of the top plate 101, and then screwed into the positioning block 2, thereby fixing the positioning block 2.

[0065] According to the spacing between the safety valves on the hydrogen filling equipment (hydrogen filling machine), corresponding positioning holes 105 are selected on the reference platform 1 , and the positioning blocks 2 are installed at the respective positioning holes 105 .

[0066] The positioning block 2 includes a positioning ring 201 and a positioning post 202. The positioning ring 201 is located at the bottom of the positioning post 202 and is configured to contact and mate with the top surface of the top plate 101. The positioning ring 201 and the positioning post 202 are integrally formed components, or they are connected together by a fixed connection method such as welding to form a single unit. The interiors of the positioning ring 201 and the positioning post 202 are hollow structures, and the inner walls of the positioning ring 201 and the positioning post 202 are provided with internal threads.

[0067] The upper end of the positioning block 2 is fixedly connected to the welding thread adapter 7, and the welding thread adapter 7 includes a lower joint 701, an upper joint 702 and a nut 703. One end of the lower joint 701 is fixedly connected to the upper end of the positioning block 2. Specifically, the lower end of the lower joint 701 is welded to the upper end of the positioning column 202, and the upper end of the lower joint 701 is threadedly connected to the nut 703; the lower end of the upper joint 702 is threadedly connected to the nut 703, and the upper end of the upper joint 702 is welded to one end of the pipeline 4.

[0068] According to the above method, at least two pipelines 4 are arranged on the reference platform 1, and each pipeline 4 is connected to the welding thread adapter 7 and the positioning block 2. By installing the positioning blocks 2 at different heights, the gap between the outlet ends of each safety valve is compensated, so that the connection end of the sleeve pipeline used to connect with the outlet end of the safety valve is complementary to the outlet end of each safety valve, thereby ensuring that the sleeve pipeline group can be accurately connected to the outlet end of each safety valve, wherein the sleeve pipeline refers to the pipeline 4 with a connector connected to the end.

[0069] The outlet end of each pipeline 4 is connected to the aggregation joint 5. In this embodiment, the other end of the pipeline 4 is welded to the aggregation joint 5.

[0070] In this embodiment, the reference platform 1 is further mounted with a central positioning block 3 corresponding to the central end of the discharge main pipe. The structure of the central positioning block 3 is identical to that of the positioning block 2. The central positioning block 3 is also connected to the welded thread adapter 7. The upper end of the welded thread adapter 7 is connected to the central pipe 6, and the lower end is connected to the positioning block 2. The upper end of the central pipe 6 is welded to the central connector 5.

[0071] By using the hydrogen filling equipment venting pipeline positioning fixture tooling described in the utility model, the installation position of the positioning block 2 on the reference platform 1 is determined according to the position of each safety valve on the hydrogen filling machine, and the positioning block 2 is fixed to the target position on the reference platform 1 by bolts. Then, the welding thread adapter 7 is welded on the positioning block 2, and then the corresponding pipeline 4 is connected through the welding thread adapter 7, so as to realize the positioning of the pipeline 4 corresponding to each safety valve before welding. After the pipeline 4 is positioned, it is convenient to carry out the welding operation, improve the welding work efficiency, and facilitate the control of the forming accuracy of the pipeline 4 welding.

[0072] The utility model selects positioning blocks 2 of different heights according to the gaps between the outlet ends of each safety valve, and determines the size of each pipeline 4 while ensuring that the outlet mounting surfaces of the pipelines 4 are located in the same plane, and connects the outlets of each pipeline 4 to the aggregation joint 5, thereby achieving precise positioning of each pipeline 4 and obtaining a connected ferrule pipeline group. After the welded threaded adapter 7 is disassembled, the connecting ends of each ferrule pipeline used for connecting to the outlet end of the safety valve complement the outlet ends of each safety valve, and can be connected to the corresponding outlet ends of each safety valve, ensuring that the pipelines 4 after welding meet the installation requirements, and ensuring that the size of the ferrule pipeline meets the assembly requirements, effectively improving the assembly accuracy of the pipeline 4, avoiding errors caused by manual positioning, which make it impossible to assemble the pipeline 4, and ensuring the interchangeability of pipelines 4 in the same position, and improving the assembly efficiency.

[0073] The ferrule pipe after welding and positioning can be disassembled from the fixture and subsequently assembled and installed at the outlet of the safety valve and the summing end of the relief main pipe.

[0074] After the pipeline 4 is welded, it can be tested by fixture and assembly inspection can be carried out in advance to detect whether the size of the pipeline 4 meets the installation requirements, further reducing the problem of the welded pipeline 4 being unable to be assembled.

[0075] The utility model can also position the collecting pipe 6 through the collecting positioning block 3 and the welding thread adapter 7, so that during subsequent assembly, the collecting pipe 6 can be directly connected to the collecting end of the discharge main pipe through the welding thread adapter 7.

[0076] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A positioning fixture for the discharge pipeline of hydrogen filling equipment, characterized by: It includes a reference platform, on which at least two positioning blocks are installed, and the positions of the positioning blocks correspond to the positions of the safety valves on the hydrogen filling equipment; One end of the positioning block is connected to an adapter, which includes a lower connector, an upper connector and an intermediate connector. One end of the lower connector is fixedly connected to the positioning block, and the other end of the lower connector is detachably connected to the intermediate connector. One end of the upper connector is detachably connected to the intermediate connector, and the other end of the upper connector is used to be fixedly connected to the pipeline.

2. The hydrogen filling equipment discharge pipeline positioning fixture according to claim 1 is characterized in that: The adapter is a welded thread adapter, the intermediate connector is a nut, and the lower connector and the upper connector are connected to the nut via threads.

3. The hydrogen filling equipment discharge pipeline positioning fixture according to claim 1 is characterized in that: The positioning block is detachably connected to the reference platform.

4. The hydrogen filling equipment discharge pipeline positioning fixture according to claim 1 is characterized in that: The positioning block includes a positioning ring and a positioning column. The positioning ring is located at the bottom of the positioning column. The positioning ring is used to contact the top surface of the reference platform. The positioning ring and the positioning column are integrally formed structural parts.

5. The hydrogen filling equipment discharge pipeline positioning fixture according to claim 3 is characterized by: The reference platform is provided with a plurality of positioning holes, the positioning blocks are arranged at the corresponding positioning holes, the positioning blocks are connected to the reference platform via a connecting piece, and the connecting piece passes through the positioning holes and is connected to the positioning blocks.

6. The hydrogen filling equipment discharge pipeline positioning fixture according to claim 5 is characterized in that: The positioning block is a hollow structure, and one end of the connecting piece passes through the positioning hole from the bottom of the reference platform and is then inserted into the positioning block to be connected with the positioning block.

7. The hydrogen filling equipment discharge pipeline positioning fixture according to claim 6 is characterized in that: The connecting piece is a bolt, and the interior of the positioning block is provided with an internal thread.

8. The hydrogen filling equipment discharge pipeline positioning fixture according to claim 1 is characterized in that: The reference platform includes a top plate, side plates and a bottom connecting plate. The two sides of the top plate are fixedly connected with side plates, and the side plates are perpendicular to the plate surface of the top plate. The bottom ends of the side plates are respectively connected with bottom connecting plates. The bottom connecting plates are arranged horizontally and located on the outside of the side plates. The bottom connecting plates are used to connect to the welding platform.

9. The hydrogen filling equipment discharge pipeline positioning fixture according to claim 2, characterized in that: The outlet ends of the pipelines are arranged in the same plane, and the outlet ends of the pipelines are connected to a collection joint, and the collection joint is fixedly connected to the collection pipe.

10. The hydrogen filling equipment discharge pipeline positioning fixture according to claim 9, characterized in that: A summarizing positioning block is also installed on the reference platform, one end of which is connected to the welding thread adapter, which is connected to the summarizing pipe.

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