A solid oxide fuel cell stack tower anode pipeline welding device

Abstract

The present invention relates to a solid oxide fuel cell stack tower anode pipeline assembly and welding device, comprising a positioning seat and a guide rod, the outer diameter of the guide rod is adapted to the inner diameter of a metal flange, a first expansion joint, a metal ceramic tube, a second expansion joint, an adjustment ring and a distribution pipe, so that the metal flange, the first expansion joint, the metal ceramic tube, the second expansion joint, the adjustment ring and the distribution pipe can be just inserted into the guide rod, under the action of the guide rod, the welding parts of the metal flange, the first expansion joint, the metal ceramic tube, the second expansion joint, the adjustment ring and the distribution pipe are aligned, so it is not easy to have misalignment during welding; a gap control boss for controlling the size of the brazing seam is provided on the top of the positioning seat, and the thickness of the gap control boss is the size of the brazing seam, so there is no need to manually control the assembly gap during welding, so that the length of the anode pipeline of the stack tower after welding meets the requirements of the drawing.

Description

Technical Field

[0001] The present invention relates to the technical field of solid oxide fuel cells, and in particular to a solid oxide fuel cell stack tower anode pipeline assembly and welding device. Background Art

[0002] Solid Oxide Fuel Cell (SOFC) is a highly efficient, clean and renewable energy conversion and power generation device with the advantages of high energy density, high efficiency and low emissions.

[0003] The anode pipeline of the stack tower in the SOFC system is a key component and the main channel for the entry and exit of gas. The manufacturing accuracy of the anode pipeline will affect the assembly of the stack tower and thus affect the quality of the entire system.

[0004] The anode pipeline of the stack tower is an assembly, usually welded by metal flanges, expansion joints, metal ceramic tubes, adjustment rings and distribution pipes. The traditional connection of the anode pipeline of the stack tower is manually assembled by the staff. Manual assembly by the staff is prone to the misalignment of the parts and the inaccurate control of the assembly gap, which will cause the straightness of each anode pipeline after welding to fail to meet the requirements of the drawing. Summary of the invention

[0005] The purpose of the present invention is to design a solid oxide fuel cell stack tower anode pipeline welding device to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a solid oxide fuel cell stack tower anode pipeline installation and welding device, comprising a welding gun, brazing seams are provided between a metal flange and a first expansion joint, between the first expansion joint and a metal ceramic tube, between the metal ceramic tube and a second expansion joint, between the second expansion joint and an adjustment ring, and between the adjustment ring and a distribution pipe, and also comprising a positioning seat and a guide rod, the positioning seat being installed on the ground perpendicular to the welding gun, the guide rod being arranged on the top of the positioning seat, the metal flange, the first expansion joint, the metal ceramic tube, the second expansion joint, the adjustment ring and the distribution pipe being respectively sleeved on the outer wall of the guide rod, and the outer diameter of the guide rod is adapted to the inner diameter of the metal flange, the first expansion joint, the metal ceramic tube, the second expansion joint, the adjustment ring and the distribution pipe, and a gap control boss for controlling the size of the brazing seam is provided on the top of the positioning seat.

[0007] Furthermore, each brazing seam has at least two gap control blocks in a circumferential array, the bottom of the gap control block is inserted into the brazing seam, and the bottom of the gap control block and the gap control boss in the same brazing seam have the same thickness.

[0008] Furthermore, the gap control block includes a limiting arc plate, a partition and a handle, wherein the handle is installed on the top of the limiting arc plate, and the partition is located at the bottom of the limiting arc plate.

[0009] Furthermore, the top of the positioning seat is respectively provided with limit grooves adapted to the metal flange, the first expansion joint, the metal ceramic tube, the second expansion joint, the adjustment ring and the distribution pipe, and the metal flange, the first expansion joint, the metal ceramic tube, the second expansion joint, the adjustment ring and the distribution pipe can all rotate in the corresponding limit grooves.

[0010] Furthermore, a clamping plate is provided at the end of the guide rod, and the clamping plate is fixed to the guide rod by a clamping bolt.

[0011] Furthermore, sealing gaskets are provided between the guide rod and the metal flange, and between the distribution pipe and the clamping plate.

[0012] Furthermore, the guide rod is connected to a positioner, and the positioner can drive the guide rod to rotate.

[0013] Furthermore, the guide rod is a hollow structure, and a water inlet and a water outlet are provided on the guide rod. The water inlet and the water outlet are both connected to water pipes, and the water pipes are connected to a water pump.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention includes a positioning seat and a guide rod, the outer diameter of the guide rod is adapted to the inner diameter of the metal flange, the first expansion joint, the metal ceramic tube, the second expansion joint, the adjustment ring and the distribution pipe, so that the metal flange, the first expansion joint, the metal ceramic tube, the second expansion joint, the adjustment ring and the distribution pipe can be just inserted into the guide rod, and under the action of the guide rod, the welding parts of the metal flange, the first expansion joint, the metal ceramic tube, the second expansion joint, the adjustment ring and the distribution pipe are aligned, so it is not easy to have misalignment during welding; a gap control boss for controlling the size of the brazing seam is provided on the top of the positioning seat, and the thickness of the gap control boss is the size of the brazing seam, so there is no need to manually control the assembly gap during welding, so that the straightness of the anode pipeline of the battery stack tower after welding meets the requirements of the drawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the gap control block of the present invention;

[0017] The names of the components marked in the figure are as follows: 1. Brazing seam; 2. Metal flange; 3. First expansion joint; 4. Metal ceramic tube; 5. Second expansion joint; 6. Adjusting ring; 7. Distribution pipe; 8. Positioning seat; 9. Guide rod; 10. Gap control boss; 11. Gap control block; 12. Limit arc plate; 13. Partition; 14. Handle; 15. Limit groove; 16. Clamping plate; 17. Clamping bolt; 18. Sealing gasket; 19. Positioner. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] Example: Please refer to Figure 1-2A solid oxide fuel cell stack tower anode pipeline welding device includes a welding gun, a brazing seam 1 is provided between a metal flange 2 and a first expansion joint 3, between the first expansion joint 3 and a metal ceramic tube 4, between the metal ceramic tube 4 and a second expansion joint 5, between the second expansion joint 5 and an adjustment ring 6, and between the adjustment ring 6 and a distribution pipe 7, and welding is performed at the brazing seam 1 by a welding gun; the device also includes a positioning seat 8 and a guide rod 9, the positioning seat 8 is installed on the ground perpendicular to the welding gun, the guide rod 9 is arranged on the top of the positioning seat 8, the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7 are respectively sleeved on the outer wall of the guide rod 9, and the outer diameter of the guide rod 9 The guide rod 9 is adapted to the inner diameters of the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution tube 7, so that the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution tube 7 can be just inserted into the guide rod 9. Under the action of the guide rod 9, the welding parts of the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution tube 7 are aligned, so it is not easy to have misalignment during the welding process; the top of the positioning seat 8 is provided with a gap control boss 10 for controlling the size of the brazing seam 1, and the thickness of the gap control boss 10 is the size of the brazing seam 1, wherein each gap control boss 10 has a thickness of The thickness is set according to actual needs; each brazing seam 1 has at least two gap control blocks 11 in a circular array, so that each brazing seam 1 is more uniform, thereby improving the welding quality of the anode pipeline of the stack tower; the gap control block 11 includes a limiting arc plate 12, a partition 13 and a handle 14, the handle 14 is installed on the top of the limiting arc plate 12, the partition 13 is located at the bottom of the limiting arc plate 12, and the partition 13 is inserted into the brazing seam 1, and the partition 13 in each brazing seam 1 has the same thickness as the gap control boss 10, and the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7 respectively abut the partition 13 and the gap control boss in the corresponding brazing seam 1 Platform 10, at this time, the size of each brazing seam 1 is fixed to ensure high-quality welding of the anode pipeline of the stack tower; in order to meet the process requirements, the sizes of the brazing seams 1 between the metal flange 2 and the first expansion joint 3, between the first expansion joint 3 and the metal ceramic tube 4, between the second expansion joint 5 and the adjustment ring 6, and between the adjustment ring 6 and the distribution pipe 7 are different, so the partition 13 and the gap control boss 10 have a certain thickness value; and the brazing seams 1 between the first expansion joint 3 and the metal ceramic tube 4, and between the metal ceramic tube 4 and the second expansion joint 5 are consistent, that is, the thickness of the brazing seams 1 and the gap control boss 10 of the two are the same; the handle 14 and the limit plate help to quickly insert or pull out the partition 13 into or out of the brazing seam 1;The top of the positioning seat 8 is respectively provided with limiting grooves 15 adapted to the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7, and the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7 can all rotate in the corresponding limiting grooves 15, and the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7 are respectively limited by the limiting grooves 15 to prevent the brazing seam 1 and the welding gun from being offset during welding; the guide rod 9 is connected to a positioner 19, and the positioner 19 can drive the guide rod 9 to rotate. When the guide rod 9 rotates, it drives the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7 to rotate at the same time. Therefore, there is no need to manually adjust the position of the weld and the welding gun during welding, thereby improving the welding efficiency; a clamping plate 16 is provided at the end of the guide rod 9, and the clamping plate 16 is fixed to the guide rod 9 by a clamping bolt 17 On the guide rod 9, the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7 are fixed in horizontal position by the clamping plate 16 to prevent the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7 from being separated from the guide rod 9 during the rotation process; a sealing gasket 18 is provided between the guide rod 9 and the metal flange 2, and between the distribution pipe 7 and the clamping plate 16. The sealing gasket 18 is used to compress the fixed anode pipeline of the stack tower to realize the assembly of the anode pipeline of the stack tower; the guide rod 9 is a cavity structure, and a water inlet and a water outlet are provided on the guide rod 9. The water inlet and the water outlet are both connected to a water pipe, and the water pipe is connected to a water pump. Water is introduced into the cavity of the guide rod 9, and the water in the cavity is circulated by the water pump, thereby realizing the cooling of the brazing seam 1, and the fluidity and pressure of water are also used to generate a flexible support inside the anode pipeline of the stack tower, which plays a role in preventing welding deformation and ensuring that the straightness of the anode pipeline of the stack tower meets the requirements of the drawings. ;

[0020] The working principle of this embodiment is as follows: when in use, insert the sealing gasket 18 into the guide rod 9, and then respectively sleeve the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7 on the outer wall of the guide rod 9, wherein the end faces of the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution pipe 7 are all in contact with the side walls of the corresponding gap control boss 10, insert the sealing gasket 18 between the guide rod 9 and the clamping plate 16, and the metal flange 2 and the first expansion joint 3 are in contact with the side walls of the corresponding gap control boss 10. The gaps between the first expansion joint 3 and the metal ceramic tube 4, between the metal ceramic tube 4 and the second expansion joint 5, between the second expansion joint 5 and the adjustment ring 6, and between the adjustment ring 6 and the distribution pipe 7 are the brazing seams 1. At least two gap control blocks 11 are inserted into each brazing seam 1, and the two gap control blocks 11 in each brazing seam 1 are arranged in a circumferential manner. A clamping plate 16 is sleeved at the end of the guide rod 9, and the clamping plate 16 is fixed to the guide rod 9 by a clamping bolt 17. Under the action of the guide rod 9, the metal flange 2, the first expansion joint 3 and the metal ceramic tube 4, the metal ceramic tube 4 and the second expansion joint 5, the second expansion joint 5 and the adjustment ring 6, and the adjustment ring 6 and the distribution pipe 7 are The welding parts of the expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution tube 7 are aligned, so it is not easy to have misalignment during the welding process; a welding gun is vertically arranged at the position of each weld, and welding is performed at the position of the weld using the welding gun. The guide rod 9 is driven to rotate by the positioner 19, and the metal flange 2, the first expansion joint 3, the metal ceramic tube 4, the second expansion joint 5, the adjustment ring 6 and the distribution tube 7 rotate together with the guide rod 9, thereby adjusting the welding position of the weld; during welding, water is introduced into the cavity of the guide rod 9, and the water circulation in the cavity is realized by a water pump, thereby realizing the cooling of the brazing seam 1, and the fluidity and pressure of the water are also used to generate flexible support inside the anode pipeline of the stack tower, which plays a role in preventing welding deformation; after the welding is completed, a complete anode pipeline of the stack tower is formed, the clamping bolt 17 is screwed out, and after the clamping plate 16 is taken out, the anode pipeline of the stack tower is taken out from the guide rod 9; therefore, there is no need to manually control the assembly gap during the welding process of the present invention, so that the straightness of the anode pipeline of the stack tower after welding meets the requirements of the drawing.

[0021] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A solid oxide fuel cell stack tower anode pipeline assembly welding device, comprising a welding gun, a brazing seam (1) is provided between a metal flange (2) and a first expansion joint (3), between the first expansion joint (3) and a metal ceramic tube (4), between the metal ceramic tube (4) and a second expansion joint (5), between the second expansion joint (5) and an adjustment ring (6), and between the adjustment ring (6) and a distribution pipe (7), characterized in that: The welding torch also comprises a positioning seat (8) and a guide rod (9), wherein the positioning seat (8) is installed on the ground perpendicularly to the welding gun, and the guide rod (9) is arranged on the top of the positioning seat (8); the metal flange (2), the first expansion joint (3), the metal ceramic tube (4), the second expansion joint (5), the adjustment ring (6) and the distribution pipe (7) are respectively sleeved on the outer wall of the guide rod (9), and the outer diameter of the guide rod (9) is the same as that of the metal flange (2), the first expansion joint (3), the metal ceramic tube (4), the second expansion joint (5), the adjustment ring (6) and the distribution pipe (7). 7), the top of the positioning seat (8) is provided with a gap control boss (10) for controlling the size of the brazing seam (1); each position of the brazing seam (1) has at least two gap control blocks (11) in a circumferential array, the bottom of the gap control block (11) is inserted into the brazing seam (1), and the bottom of the gap control block (11) and the gap control boss (10) in the same brazing seam (1) have the same thickness; the guide rod (9) is a cavity structure, and the guide rod (9) is provided with a water inlet and a water outlet, and the water inlet and the water outlet are both connected to water pipes, and the water pipes are connected to a water pump.

2. The solid oxide fuel cell stack tower anode pipeline welding device according to claim 1, characterized in that: The gap control block (11) comprises a limiting arc plate (12), a partition plate (13) and a handle (14); the handle (14) is installed on the top of the limiting arc plate (12), and the partition plate (13) is located at the bottom of the limiting arc plate (12).

3. The solid oxide fuel cell stack tower anode pipeline welding device according to claim 1, characterized in that: The top of the positioning seat (8) is respectively provided with limiting grooves (15) adapted to the metal flange (2), the first expansion joint (3), the metal ceramic tube (4), the second expansion joint (5), the adjustment ring (6) and the distribution pipe (7), and the metal flange (2), the first expansion joint (3), the metal ceramic tube (4), the second expansion joint (5), the adjustment ring (6) and the distribution pipe (7) can all rotate in the corresponding limiting grooves (15).

4. The solid oxide fuel cell stack tower anode pipeline welding device according to claim 1, characterized in that: A clamping plate (16) is provided at the end of the guide rod (9), and the clamping plate (16) is fixed to the guide rod (9) via a clamping bolt (17).

5. The solid oxide fuel cell stack tower anode pipeline welding device according to claim 4, characterized in that: Sealing gaskets (18) are provided between the guide rod (9) and the metal flange (2), and between the distribution pipe (7) and the pressing plate (16).

6. The solid oxide fuel cell stack tower anode pipeline welding device according to claim 1, characterized in that: The guide rod (9) is connected to a positioner (19), and the positioner (19) can drive the guide rod (9) to rotate.

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