Heat treatment device and heat treatment process for fastener of hydrogen energy electrolytic cell

Abstract

The invention relates to the technical field of fastener heat treatment, in particular to a hydrogen energy electrolytic cell fastener heat treatment device and a heat treatment process. Comprising a heating tank, a cooling box, a straightening mechanism, a material returning mechanism, a heating pipe and a heat recovery box, the heat treatment device can solve the following problems in the heat treatment process of fasteners in the prior art: full-automatic feeding and discharging cannot be realized, so that the production efficiency is reduced; the fastener cannot be sealed during heating, so that heat generated in the heating process is lost; the fasteners with different sizes cannot be automatically adjusted; continuous conveying and heating of the fasteners are achieved, and in addition, automatic discharging of the fasteners is achieved through the material returning mechanism; heat in the heating pipe enters the heat recycling box, so that recycling of the heat is achieved; the heating pipe is sealed, cooling liquid is prevented from flowing into the heat recovery cavity, and the temperature recovery effect of the heat recovery box on a fastener is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of fastener heat treatment, and in particular to a fastener heat treatment device and a heat treatment process for a hydrogen energy electrolyzer. Background Art

[0002] The fasteners of hydrogen energy electrolyzers are key components used to ensure that the components of the electrolyzers are tightly connected and maintain stability. They are usually cylindrical structures. The heat treatment of fasteners can improve the mechanical properties of materials, the durability and reliability of products through heating, heat preservation and cooling. Traditional heat treatment methods have problems such as high energy consumption, low efficiency and uneven treatment effects. Therefore, it is particularly important to develop a new type of heat treatment device and its use method.

[0003] In the prior art, a large number of fastener heat treatment devices are also disclosed. Among them, a Chinese patent with publication number CN118668051A discloses a fastener heat treatment device and a method of use; it includes a conveying base, a conveying mesh belt for conveying fasteners is provided in the conveying base, a heat treatment shell is fixedly installed on the conveying base, a plurality of swing rods are rotatably connected to the front inner wall of the conveying base, the conveying mesh belt is wrapped around the outer sides of the plurality of swing rods, a plurality of bottom knocking rods for knocking the conveying mesh belt are fixedly connected to the lower surface of the swing rod, a plurality of movable rods are provided on the front inner wall of the heat treatment shell, and a plurality of toggle components for toggling the fasteners are provided on the lower surface of the movable rods.

[0004] During use, the above-mentioned prior art greatly reduces the stacking of fasteners on the conveyor mesh belt by separating and dispersing the fasteners on the conveyor mesh belt, ensuring that the fasteners fed by the conveyor mesh belt can be heated evenly, thereby ensuring that the quality of the fasteners in the same batch can maintain a high level.

[0005] However, in the process of heat treatment of fasteners using the above-mentioned existing technologies, there are still the following shortcomings: 1. The above-mentioned existing technologies cannot achieve fully automatic loading and unloading during the heat treatment process, thereby reducing production efficiency and increasing the workload of workers. In addition, the fasteners cannot be accurately positioned and transmitted, and the quality of heat treatment of the fasteners cannot be ensured.

[0006] 2. The above-mentioned prior art cannot seal the fasteners during the heat treatment process of the fasteners, so that the heat generated during the heat treatment process is lost, increasing the energy loss, and also causing the fasteners to be heated unevenly, reducing the heat treatment speed and efficiency.

[0007] 3. The above-mentioned prior art cannot automatically adjust fasteners of different sizes when performing heat treatment on fasteners, so that heat treatment cannot be performed when encountering fasteners of different sizes, which has great limitations.

[0008] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing fastener heat treatment technology. Summary of the invention

[0009] In order to solve the above problems, the present invention provides a heat treatment device for fasteners of a hydrogen electrolyzer, comprising a heating tank, a cooling box is installed at the bottom of the heating tank, two bracket plates are symmetrically installed along the width direction of the cooling box, a driving shaft is rotatably connected between the two bracket plates, the heating tank is sleeved on the outer wall of the driving shaft, a straightening mechanism and a material returning mechanism are installed on one side in the width direction of the cooling box, a plurality of heating tubes are rotatably connected to the outer wall of the heating tank, a plurality of cooling holes distributed in an arc shape of 180 degrees are opened on the outer wall of the heating tubes, and a heat recovery box is installed on the side of the heating tank away from the straightening mechanism.

[0010] The straightening mechanism includes two support frames, which are located on the side of the heating tank away from the heat recovery box. Two groups of straightening components are rotatably connected on the opposite sides of the two support frames. Each group of straightening components includes two rotating shafts rotatably connected between the two support frames and symmetrically distributed up and down. The outer wall of the rotating shaft is provided with a straightening wheel, and the outer wall of the straightening wheel is provided with an annular groove for straightening the fastener.

[0011] Preferably, the straightening mechanism also includes a connecting plate installed between the two support frames, a support ring is passed through the middle of the connecting plate, the diameter of the support ring gradually increases on the side away from the heating tank, and two transmission gears symmetrically distributed along the straightening wheel are sleeved on the outer wall of the rotating shaft, and the two rotating shafts located on the same horizontal line are connected through a belt drive.

[0012] Preferably, the material return mechanism includes a supporting plate, which is located on the side of the cooling box away from the heat recovery box. A bidirectional motor is installed on the side of the supporting plate away from the support frame through a motor seat. The output shaft of the bidirectional motor passes through the supporting plate and is connected to a linkage shaft. The linkage shaft and the rotating shaft near the bottom are connected through a belt drive.

[0013] Preferably, the material return mechanism also includes a linkage gear sleeved on the outer wall of the linkage shaft, a first bracket ring and a second bracket ring are installed on the side of the load-bearing plate close to the support frame, a material return shaft is passed through the first bracket ring and the second bracket ring, a plurality of gear rings meshing with the linkage gear and equidistantly arranged along its axial direction are sleeved on the outer wall of the material return shaft, a plurality of gear rings meshing with the linkage gear are arranged on the outer walls of the plurality of gear rings, reset grooves are provided on a baffle plate installed on the side of the load-bearing plate close to the bracket plate, a tension spring is connected between the baffle plate and the material return shaft.

[0014] Preferably, the first bracket ring and the second bracket ring are both provided with sliding grooves and arc grooves on the side close to the support frame, the sliding grooves and arc grooves are connected to each other, the sliding grooves and arc grooves on the first bracket ring and the second bracket ring are distributed symmetrically around the center, and a sliding rod sliding in the sliding groove and arc groove is installed on the side of the material withdrawal shaft away from the cooling box.

[0015] Preferably, a bending plate is installed on the side of the cooling box away from the support frame, and the bending plate is rotatably connected to the outer wall of the cooling box with an adapter shaft, the output shaft of the bidirectional motor and the adapter shaft are connected by a belt drive, the outer wall of the adapter shaft is sleeved with a first bevel gear, and a transmission shaft is rotatably connected on the bending plate, and a second bevel gear meshing with the first bevel gear is sleeved on the outer wall of the transmission shaft, and a toggle wheel is rotatably connected to the side of the outer wall of the transmission shaft away from the second bevel gear, and a toggle rod is connected to the toggle wheel close to the heating tank, and a groove wheel matching the toggle rod is sleeved on the outer wall of the driving shaft, and a plurality of circumferentially equidistantly distributed toggle grooves are provided on the side of the groove wheel close to the heating tank.

[0016] Preferably, the heating tank is connected to a connecting ring on the side away from the support frame, the connecting ring is rotatably connected to a rotating ring on the side away from the heating tank, a partition is installed on the side of the rotating ring close to the heat recovery box, a heat recovery chamber connected to multiple heating pipes is formed between the connecting ring, the rotating ring and the partition, a recovery pipe is connected between the partition and the heat recovery box, and the recovery pipe is connected to the heat recovery box and the heat recovery chamber.

[0017] Preferably, the heating tank is provided with a plurality of sliding grooves corresponding to the heating tubes on the side close to the heat recovery box, a sealing plate is slidably connected in the sliding groove, a return spring is connected between the sealing plate and the sliding groove, a cam is sleeved on the outer wall of the driving shaft, the cam is rotatably connected to the bracket plate close to the heat recovery box through a sleeve ring, the partition plate is sleeved on the outer wall of the sleeve ring, and the protruding part of the cam is located below the sleeve ring.

[0018] Preferably, two conveying brackets are installed at the bottom of the heat recovery box, and the two conveying brackets are rotatably connected to two conveying shafts on opposite sides. The driving shaft and the conveying shaft are connected by belt transmission. A conveyor belt is sleeved on the outer wall of the conveying shaft, and a plurality of insulation brackets equidistantly distributed along the outer wall are installed on the outer wall of the conveyor belt. A connecting groove for the insulation bracket to slide is opened at the bottom of the heat recovery box, and a discharge pipe corresponding to the material withdrawal shaft is connected between the partition and the heat recovery box, and the discharge pipe is communicated with the heat recovery box and the heat recovery chamber.

[0019] In addition, the present invention also provides a heat treatment process for fasteners of a hydrogen electrolyzer, comprising the following steps: S1, fastener straightening: first, the fastener is placed on a straightening wheel, and the straightening wheel straightens and conveys the fastener so that the fastener enters the heating tube.

[0020] S2. Heating and cooling of fasteners: The heating tube heats the fasteners, and the heating tank rotates and drives the heating tube to move circumferentially, so that the heated heating tube enters the cooling box, and the fasteners are cooled by the coolant in the cooling box.

[0021] S3, automatic material withdrawal: After the fastener has finished cooling, the material withdrawal mechanism pushes the fastener out of the heating tube and pushes the fastener into the heat recovery box.

[0022] S4. Fastener temperature recovery: The hot air in the heating pipe enters the heat recovery box, thereby recovering the temperature of the fasteners entering the heat recovery box.

[0023] In summary, this application includes the following beneficial technical effects: 1. The present invention straightens the fasteners multiple times through multiple sets of straightening wheels. The fasteners are gradually straightened under the extrusion of the annular groove, which effectively improves the straightening accuracy. At the same time, it ensures the precise control of the straightening process. The multiple sets of straightening wheels not only ensure the straightening quality of the fasteners, but also significantly improve the straightening speed, thereby improving the overall production efficiency.

[0024] 2. The present invention drives multiple heating tubes to move circumferentially through intermittent rotation of the heating tank, ensuring that each heating tube corresponds to the straightening wheel in sequence, thereby realizing continuous transmission and heating of the fasteners. In addition, the fasteners that have completed heating and cooling are pushed out of the heating tubes through the unloading shaft and enter the heat recovery box, thereby realizing automatic discharge of the fasteners, improving the degree of production automation, and ensuring continuous production of fasteners.

[0025] 3. The present invention allows the heat in the heating tube to enter the recovery tube through the heat recovery chamber, and then enter the heat recovery box, thereby realizing effective recovery and reuse of heat, which not only reduces energy consumption, but also improves thermal energy utilization and reduces heat loss. At the same time, the heat recovery box can also return the temperature of the fasteners to further ensure the performance stability of the fasteners in subsequent processing.

[0026] Fourth, the present invention seals the heating tube by moving the sealing plate along the sliding groove under the extrusion of the cam to prevent the coolant from flowing into the heat recovery chamber. This sealing design effectively avoids the reduction of heat temperature and ensures the heat recovery effect of the heat recovery box on the fastener. When the heating tube continues to rotate, the sealing plate returns to its original position under the action of the reset spring to ensure that the heat inside the heating tube can enter the heat recovery box again, further improving the utilization rate of thermal energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is a structural schematic diagram of the straightening mechanism of the present invention.

[0030] Figure 3 It is a schematic diagram of the structure between the heating tank and the cooling box of the present invention.

[0031] Figure 4 It is a structural schematic diagram of the material return mechanism of the present invention.

[0032] Figure 5 The present invention Figure 4 A partial enlarged view of point A.

[0033] Figure 6 It is a schematic diagram of the structure between the groove wheel and the shift wheel of the present invention.

[0034] Figure 7 It is a schematic diagram of the structure between the connecting ring and the rotating ring of the present invention.

[0035] Figure 8 It is a schematic diagram of the structure between the heating tank and the connecting ring of the present invention.

[0036] Fig. 9 It is a schematic diagram of the structure between the sealing plate and the return spring of the present invention.

[0037] Fig.10 It is a schematic diagram of the internal structure of the heat recovery box of the present invention.

[0038] Fig.11 It is a schematic diagram of the structure between the incomplete gear and the flip gear of the present invention.

[0039] Fig.12 It is a schematic diagram of the internal structure of the heating tube of the present invention.

[0040] Fig.13 The present invention Fig.12 A partial enlarged view of point B.

[0041] In the figure, 1, heating tank; 11, heating tube; 111, supporting spring; 112, clamping rod; 113, limiting block; 114, sealing slide plate; 115, linkage groove; 116, extrusion spring; 117, extrusion rod; 118, incomplete gear; 119, flip gear; 12, cooling hole; 2, cooling box; 21, bracket plate; 22, driving shaft; 3, straightening mechanism; 31, supporting frame; 32, rotating shaft; 33, straightening wheel; 34, annular groove; 35, connecting plate; 36, supporting ring; 37, transmission gear; 4, material removal mechanism; 41, bearing plate; 42, bidirectional motor; 43, linkage shaft; 44, linkage gear; 45, first bracket ring; 46, second bracket ring; 47. material return shaft; 48. gear ring; 49. reset groove; 50. baffle; 51. tension spring; 52. sliding groove; 53. arc groove; 54. sliding rod; 6. heat recovery box; 61. connecting ring; 62. rotating ring; 63. partition; 64. recovery pipe; 65. sliding groove; 66. sealing plate; 67. reset spring; 68. cam; 69. sleeve ring; 70. conveying bracket; 71. conveying shaft; 72. conveyor belt; 73. heat insulation bracket; 74. connecting groove; 75. discharge pipe; 81. bending plate; 82. transfer shaft; 83. first bevel gear; 84. transmission shaft; 85. second bevel gear; 86. toggle wheel; 87. toggle rod; 88. groove wheel; 89. toggle groove. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-Figure 13 Embodiments of the present invention are described in detail.

[0043] The embodiment of the present application discloses a fastener heat treatment device for a hydrogen energy electrolyzer. It should be noted that the fastener heat treatment device of the present application is mainly used in the process of heat treatment of fasteners. In terms of technical effect, it can perform multiple straightening operations on the fasteners. The fasteners are gradually straightened under the extrusion of the annular groove 34, which effectively improves the straightening accuracy. In particular, during the heating process of the fasteners, the heat in the heating tube 11 enters the recovery tube 64 through the heat recovery chamber, and then enters the heat recovery box 6, thereby realizing effective recovery and reuse of heat. Furthermore, the fastener heat treatment device can also push the fasteners that have completed the heat treatment out of the heating tube 11 through the withdrawal shaft 47 after the fasteners have completed the heat treatment and cooling, and enter the heat recovery box 6 for tempering.

[0044] Embodiment 1: Reference Figure 1 As shown, a heat treatment device for fasteners of a hydrogen energy electrolyzer comprises a heating tank 1, a cooling box 2 is installed at the bottom of the heating tank 1, two bracket plates 21 are symmetrically installed in the width direction of the cooling box 2, a driving shaft 22 is rotatably connected between the two bracket plates 21, the heating tank 1 is sleeved on the outer wall of the driving shaft 22, a straightening mechanism 3 and a material withdrawal mechanism 4 are installed on one side of the width direction of the cooling box 2, a plurality of heating tubes 11 are rotatably connected to the outer wall of the heating tank 1, a plurality of cooling holes 12 distributed in an arc shape of 180 degrees are opened on the outer wall of the heating tube 11, and the plurality of cooling holes 12 are arranged along the outer wall of the heating tank 1. The heating tubes 11 are evenly spaced in the axial direction, and a heat recovery box 6 is installed on the side of the heating tank 1 away from the straightening mechanism 3; the straightening mechanism 3 includes two support frames 31, the support frames 31 are located on the side of the heating tank 1 away from the heat recovery box 6, and two groups of straightening components are rotatably connected on opposite sides of the two support frames 31, and each group of straightening components includes two rotating shafts 32 rotatably connected between the two support frames 31 and symmetrically distributed up and down, and the outer wall of the rotating shaft 32 is provided with a straightening wheel 33, and the outer wall of the straightening wheel 33 is provided with an annular groove 34 for straightening the fastener.

[0045] It should be noted that a heating system is installed in the heating tank 1, which converts electromagnetic energy into thermal energy for heat treatment of the fasteners, so that the temperatures of different cross-sections of the fasteners are equal, the inside and outside are heated evenly, and fasteners of different diameters can be heat treated by adjusting the power; thereby, precise control and optimization of the medium frequency induction heating process can be achieved, including real-time monitoring of parameters such as temperature, current and voltage, and automatic adjustment of heating parameters according to the material and size of the workpiece to ensure heating quality and efficiency.

[0046] In the specific implementation process, the straightening wheel 33 is first rotated, and then the fastener is inserted between the two straightening wheels 33 on the side away from the heating tank 1. The fastener is gradually straightened under the extrusion of the annular groove 34, so that the bent section obtains the required reverse curvature rate between the two straightening wheels 33, and then the fastener continues to move toward the side close to the heating tank 1 and moves between the two straightening wheels 33 on the side close to the heating tank 1. The fastener is straightened again between the two straightening wheels 33. The straightening quality of the fastener is ensured by multiple straightenings, and the straightening speed is increased; the fastener is transmitted to the corresponding heating tube 11 through the straightening wheel 33, and then the driving shaft 22 is rotated, and the driving shaft 22 drives the heating tank 1 to rotate intermittently, and the heating tank 1 drives the multiple heating tubes 11 on its outer wall to move circumferentially, and the multiple heating tubes 11 move in turn to a place corresponding to the straightening wheel 33, and the next fastener is straightened again through the straightening wheel 33 and transmitted to the new heating tube 11.

[0047] During this process, the heating tank 1 always heats the fasteners in the heating tube 11, and then repeats the above steps until the heating tube 11 containing the fasteners rotates to the bottom, so that the heating tube 11 is immersed in the coolant in the cooling box 2, thereby cooling the fasteners. Then the heating tank 1 continues to rotate. When the cooled fasteners rotate to the side close to the material return mechanism 4, the material return mechanism 4 pushes the fasteners that have completed cooling out of the heating tube 11 into the heat recovery box 6 for tempering treatment and moves them to the side close to the heat recovery box 6. At the same time, the heat recovery box 6 recovers the heat in the heating tube 11.

[0048] Reference Figure 1 , Figure 2 and Figure 3 As shown, in order to straighten and convey the fasteners before heating, a straightening mechanism 3 is provided in this embodiment; specifically, the straightening mechanism 3 also includes a connecting plate 35 installed between two support frames 31, a support ring 36 is inserted in the middle of the connecting plate 35, and the diameter of the support ring 36 gradually increases on the side away from the heating tank 1, and the outer wall of the rotating shaft 32 is sleeved with two transmission gears 37 symmetrically distributed along the straightening wheel 33, and the two rotating shafts 32 located on the same horizontal line are connected by a belt drive; the unloading mechanism 4 includes a bearing plate 41, the bearing plate 41 is located on the side of the cooling box 2 away from the heat recovery box 6, and a bidirectional motor 42 is installed on the side of the bearing plate 41 away from the support frame 31 through a motor seat, and the output shaft of the bidirectional motor 42 passes through the bearing plate 41 and is connected with a linkage shaft 43, and the linkage shaft 43 and the rotating shaft 32 near the bottom are connected by a belt drive.

[0049] During the specific implementation process, the bidirectional motor 42 is started, and the output shaft of the bidirectional motor 42 drives the linkage shaft 43 to rotate, and the linkage shaft 43 drives the lower rotating shaft 32 to rotate synchronously. During the rotation of the rotating shaft 32, the transmission gear 37 on its outer wall drives the upper transmission gear 37 and the rotating shaft 32 to rotate in the opposite direction, and the two rotating shafts 32 drive the straightening wheel 33 to rotate toward the side close to the heating tank 1, so that when the fastener is placed on the straightening wheel 33, the straightening wheel 33 straightens and conveys the fastener; when the fastener moves toward the side close to the heating tank 1 and passes through the support ring 36, the fastener passes through the middle of the support ring 36, and the support ring 36 supports the fastener during the movement of the fastener to prevent the fastener from bending downward under the action of its gravity.

[0050] Reference Figure 3 , Figure 4 and Figure 5 As shown, in order to automatically discharge the fastener after the fastener is heated and cooled, a material-removing mechanism 4 is provided in this embodiment; specifically, the material-removing mechanism 4 also includes a linkage gear 44 sleeved on the outer wall of the linkage shaft 43, and a first bracket ring 45 and a second bracket ring 46 are installed on the side of the carrier plate 41 close to the support frame 31. A material-removing shaft 47 is penetrated in the first bracket ring 45 and the second bracket ring 46. The outer wall of the material-removing shaft 47 is sleeved with a plurality of toothed rings 48 that are equidistantly arranged along its axial direction and mesh with the linkage gear 44. The plurality of toothed rings 48 The outer walls are provided with reset grooves 49, and a baffle 50 is installed on the side of the load-bearing plate 41 close to the bracket plate 21, and a tension spring 51 is connected between the baffle 50 and the material withdrawal shaft 47; the first bracket ring 45 and the second bracket ring 46 are provided with sliding grooves 52 and arc grooves 53 on the side close to the support frame 31, and the sliding grooves 52 and arc grooves 53 are connected to each other, and the sliding grooves 52 and arc grooves 53 on the first bracket ring 45 and the second bracket ring 46 are distributed symmetrically around the center, and a sliding rod 54 sliding in the sliding grooves 52 and arc grooves 53 is installed on the side of the material withdrawal shaft 47 away from the cooling box 2.

[0051] It should be noted that the tension spring 51 always applies an elastic force to the material removal shaft 47 to move it toward the side close to the baffle 50, so that after the material removal shaft 47 pushes the fastener out of the heating tube 11, the tension spring 51 can quickly drive the material removal shaft 47 to reset. In addition, the arc grooves 53 on the first bracket ring 45 and the second bracket ring 46 are gradually inclined downward on the side away from the baffle 50, and the arc groove 53 of the first bracket ring 45 and the sliding groove 52 of the second bracket ring 46 are at the same height, and the sliding groove 52 of the first bracket ring 45 and the arc groove 53 of the second bracket ring 46 are at the same height; in the initial state, the material removal shaft 47 drives the gear ring 48 to cooperate with the linkage gear 44, and the material removal shaft 47 drives the sliding rod 54 to be at the same height as the sliding groove 52 of the first bracket ring 45 and the arc groove 53 of the second bracket ring 46.

[0052] In the specific implementation process, when the heating tank 1 drives the heating tube 11 to rotate to the side close to the material withdrawal shaft 47, the linkage shaft 43 drives the linkage gear 44 to rotate. When the linkage gear 44 rotates, the material withdrawal shaft 47 is driven to move to the side close to the heating tube 11 by toggling the gear ring 48, and the tension spring 51 is adaptively retracted; during this period, the first bracket ring 45 and the second bracket ring 46 support the material withdrawal shaft 47 during its movement, and the material withdrawal shaft 47 drives the sliding rod 54 to move synchronously, and then the material withdrawal shaft 47 enters the heating tube 11 and pushes the fastener to move to the side close to the heat recovery box 6, and then the sliding rod 54 moves into the arc groove 53 of the second bracket ring 46, The sliding rod 54 slides along the arc groove 53 and drives the material removal shaft 47 to rotate downward. The material removal shaft 47 drives multiple gear rings 48 to rotate synchronously, so that the reset grooves 49 on the multiple gear rings 48 rotate to the side close to the linkage gear 44; then the sliding rod 54 slides downward from the arc groove 53 along the second bracket ring 46 to the sliding groove 52 of the second bracket ring 46. At the same time, the reset grooves 49 on the multiple gear rings 48 are located in the same plane as the linkage gear 44, and the linkage gear 44 no longer cooperates with the gear ring 48. Under the elastic force of the tension spring 51, the material removal shaft 47 moves to the side close to the baffle 50 and resets and slides out of the heating tube 11, thereby realizing automatic discharge of the fastener.

[0053] When the sliding rod 54 moves to the side close to the first bracket ring 45, the sliding rod 54 slides into the arc groove 53 of the first bracket ring 45, and the sliding rod 54 slides along the arc groove 53 and drives the material withdrawal shaft 47 to rotate upward, and the material withdrawal shaft 47 drives multiple gear rings 48 to rotate, so that the reset groove 49 on the gear ring 48 is staggered with the linkage gear 44, and the matching between the linkage gear 44 and the gear ring 48 is restored; during the rotation of the linkage gear 44, the gear ring 48 is driven again to move toward the side close to the heating tank 1, and the fasteners in the heating tube 11 are pushed out, thereby realizing the automatic discharge of the fasteners that have completed heating and cooling in the heating tube 11, which is convenient for the subsequent tempering of the fasteners, and greatly improves the heat treatment efficiency of the fasteners.

[0054] Reference Figure 3 and Figure 6As shown, in order to achieve continuous heat treatment of fasteners, based on this, in an embodiment, a bending plate 81 is installed on the side of the cooling box 2 away from the support frame 31, and the bending plate 81 is rotatably connected to the outer wall of the cooling box 2 with an adapter shaft 82, and the output shaft of the bidirectional motor 42 is connected to the adapter shaft 82 by a belt drive, and the outer wall of the adapter shaft 82 is sleeved with a first bevel gear 83, and a transmission shaft 84 is rotatably connected to the bending plate 81, and the outer wall of the transmission shaft 84 is sleeved with a second bevel gear 85 meshing with the first bevel gear 83, and the outer wall of the transmission shaft 84 is rotatably connected to the side of the second bevel gear 85, and the toggle wheel 86 is rotatably connected to the side of the outer wall of the transmission shaft 84 away from the second bevel gear 85, and the toggle wheel 86 is connected to a toggle rod 87 close to the heating tank 1, and the outer wall of the driving shaft 22 is sleeved with a groove wheel 88 matching the toggle rod 87, and the groove wheel 88 is provided with a plurality of circumferentially equidistantly distributed toggle grooves 89 on the side close to the heating tank 1.

[0055] In the specific implementation process, the bidirectional motor 42 drives the adapter shaft 82 to rotate during the rotation process, and the first bevel gear 83 is driven to rotate during the rotation process of the adapter shaft 82. The second bevel gear 85 and the transmission shaft 84 are driven to rotate during the rotation process of the first bevel gear 83. The transmission shaft 84 drives the toggle wheel 86 and the toggle rod 87 to rotate synchronously during the rotation process. It should be noted that the toggle rod 87 is slidably docked in the toggle groove 89. Therefore, when the toggle wheel 86 rotates, the mutual cooperation between the toggle rod 87 and the toggle groove 89 can drive the groove wheel 88 to rotate synchronously. Under the action of the movable groove 89, the groove wheel 88 rotates intermittently, and the angle of each rotation of the groove wheel 88 is the angle between two adjacent toggle grooves 89, and multiple toggle grooves 89 correspond to the positions of multiple heating tubes 11. Therefore, when the groove wheel 88 rotates intermittently, it drives the heating tank 1 to rotate synchronously and drives multiple heating tubes 11 to correspond to the straightening wheel 33 in turn, so as to facilitate the transmission of fasteners. In addition, the intermittent time of the rotation of the groove wheel 88 is sufficient to allow the straightening wheel 33 to transmit the fasteners to the heating tube 11, and is sufficient to allow the material withdrawal shaft 47 to push out the fasteners in the corresponding heating tube 11 and reset it.

[0056] It should be noted that a damping ring (not shown in the figure) is provided between the groove wheel 88 and the bracket plate 21 through the driving shaft 22, and the damping ring can limit the groove wheel 88 to prevent it from rotating randomly under the action of other external forces.

[0057] Reference Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, the fasteners need to be tempered after heating and cooling. Based on this, in this embodiment, a connecting ring 61 is connected to the side of the heating tank 1 away from the support frame 31, and a rotating ring 62 is rotatably connected to the side of the connecting ring 61 away from the heating tank 1. A partition 63 is installed on the side of the rotating ring 62 close to the heat recovery box 6. A heat recovery chamber connected to multiple heating pipes 11 is formed between the connecting ring 61, the rotating ring 62 and the partition 63. A recovery pipe 64 is connected between the partition 63 and the heat recovery box 6, and the recovery pipe 64 is connected to the heat recovery box 6. The recovery box 6 and the heat recovery chamber are connected to each other; a plurality of sliding grooves 65 corresponding to the heating tube 11 are provided on the side of the heating tank 1 close to the heat recovery box 6, a sealing plate 66 is slidably connected in the sliding groove 65, a return spring 67 is connected between the sealing plate 66 and the sliding groove 65, a cam 68 is sleeved on the outer wall of the driving shaft 22, the cam 68 is rotatably connected to the bracket plate 21 close to the side of the heat recovery box 6 through a sleeve ring 69, the partition plate 63 is sleeved on the outer wall of the sleeve ring 69, and the protruding part of the cam 68 is located below the sleeve ring 69.

[0058] Furthermore, in this embodiment, two conveying brackets 70 are installed at the bottom of the heat recovery box 6, and the two conveying brackets 70 are rotatably connected to two conveying shafts 71 on opposite sides. The driving shaft 22 is connected to the conveying shaft 71 through a belt drive. A conveyor belt 72 is sleeved on the outer wall of the conveying shaft 71, and a plurality of insulation brackets 73 equidistantly distributed along the outer wall of the conveyor belt 72 are installed. A connecting groove 74 for the insulation bracket 73 to slide is provided at the bottom of the heat recovery box 6, and a discharge pipe 75 corresponding to the withdrawal shaft 47 is connected between the partition 63 and the heat recovery box 6, and the discharge pipe 75 is interconnected with the heat recovery box 6 and the heat recovery chamber.

[0059] It should be noted that the return spring 67 always applies a pulling force to the sealing plate 66 toward the side close to the axis of the heating tank 1, so that the sealing plate 66 can be reset after losing the extrusion of the cam 68. In addition, the conveyor belt 72 provided in the present application is preferably a conveyor chain plate that can operate normally in a high temperature environment to ensure normal heat treatment of the fasteners.

[0060] In the specific implementation process, when the heating tube 11 heats the fastener, the heat in the heating tube 11 enters the recovery tube 64 from the heat recovery chamber, and then enters the heat recovery box 6 from the recovery tube 64, so as to restore the temperature of the fastener. In addition, when the heating tank 1 rotates, the connecting ring 61 rotates synchronously with the heating tank 1, and the heating tube 11 drives multiple sealing plates 66 to rotate synchronously. When the sealing plate 66 rotates to the bottom of the heating tank 1, the sealing plate 66 moves along the sliding groove 65 away from the axis of the heating tank 1 under the extrusion of the cam 68, and the reset spring 67 stretches adaptively, so that the sealing plate 66 can heat the heating tube 1. 11 is sealed to prevent the coolant inside the heating tube 11 immersed in the coolant from flowing into the heat recovery chamber, reducing the heat temperature and affecting the heat recovery box 6 to warm the fastener; then the heating tube 11 continues to rotate and drives the sealing plate 66 below it to move away from under the cam 68. After the sealing plate 66 loses the squeezing of the cam 68, the return spring 67 adaptively contracts and drives the sealing plate 66 to move along the sliding groove 65 to the side close to the axis of the heating tank 1, so that the heating tube 11 opens on the side close to the heat recovery box 6, and after heating the fastener, the heat inside the heating tube 11 enters the heat recovery box 6 again.

[0061] After the material withdrawal shaft 47 pushes the fastener out of the heating tube 11, the fastener enters the heat recovery box 6 from the discharge pipe 75 and moves to the upper end of the insulation bracket 73. During the rotation of the active shaft 22, the transmission shaft 71 is driven to rotate synchronously and intermittently. The transmission shaft 71 drives the conveyor belt 72 to rotate intermittently. The conveyor belt 72 drives multiple insulation brackets 73 to be conveyed into the heat recovery box 6. During the conveying process, the fastener is heated up in the heat recovery box 6.

[0062] Embodiment 2: Reference Fig.11 , Fig.12 and Fig.13As shown, on the basis of the first embodiment, in order to prevent the heat loss of the heating tube 11 during the heating process of the fastener, thereby affecting the heating effect, based on this, in this embodiment, two groups of support springs 111 are installed in the heating tube 1, and each group of support springs 111 includes a plurality of support springs 111 that are evenly distributed along the circumference of the inner wall of the heating tube 11, and the two support springs 111 located on the same horizontal line are connected to a clamping rod 112 on the side close to the axis of the heating tube 11, and a plurality of support springs 111 are installed on the side of the heating tube 11 away from the heat recovery box 6 along its axis. The limiting blocks 113 are evenly distributed on the circumference of the line, and a plurality of sealing slides 114 corresponding to the limiting blocks 113 are installed on the side of the heating tube 11 away from the heat recovery box 6. The sealing slide 114 is provided with a linkage groove 115 on the side close to the heating tube 11. The limiting blocks 113 slide in the linkage groove 115. An extrusion spring 116 is connected between the limiting blocks 113 and the linkage groove 115. An extrusion rod 117 is installed on the side of the sealing slide 114 close to the heating tube 11. The extrusion rod 117 is located on the side of the clamping rod 112 close to the axis of the heating tube 11.

[0063] Furthermore, in this embodiment, an incomplete gear 118 is installed on the side of the heating tank 1 away from the heat recovery box 6. The incomplete gear 118 is rotatably sleeved on the outer wall of the driving shaft 22. The incomplete gear 118 is rotatably connected to the bracket plate 21 on the side away from the heat recovery box 6. The outer wall of the heating tube 11 is sleeved with a flip gear 119 that meshes with the incomplete gear 118.

[0064] It should be noted that the support spring 111 always applies an elastic force to the clamping rod 112 toward the side close to the axis of the heating tube 11, so that the clamping rod 112 can clamp fasteners of different diameters; the extrusion spring 116 always applies an elastic force to the extrusion rod 117 toward the side close to the axis of the heating tube 11, so that the extrusion rod 117 can automatically reset to seal the heating tube 11 after losing the extrusion of the fastener.

[0065] In the specific implementation process, when the straightening wheel 33 transfers the fastener to the side close to the heating tube 11, the fastener supports the inclined surface of the sealing slide 114, so that the sealing slide 114 moves along the limit block 113 to the side away from the axis of the heating tube 11, and the extrusion spring 116 adaptively contracts. At the same time, the sealing slide 114 squeezes the clamping rod 112 through the extrusion rod 117. The clamping rod 112 adaptively expands outward under the action of the extrusion rod 117. At this time, multiple clamping rods 112 expand synchronously at one end close to the sealing slide 114, and the support spring 111 adaptively contracts to facilitate the fastener, and the end of the clamping rod 112 away from the sealing slide 114 is not stressed and is in a contracted state. Therefore, each clamping rod 112 is in an inclined state, but it does not affect the guidance of the fastener.

[0066] Subsequently, the fastener smoothly enters the heating tube 11 under the guidance of the sealing slide 114 and the plurality of clamping rods 112. When the fastener completely enters the heating tank 1, the sealing slide 114 loses the support of the fastener, and the extrusion spring 116 and the support spring 111 rebound and respectively drive the sealing slide 114 and the clamping rod 112 to reset, so that the plurality of clamping rods 112 clamp the fastener in multiple directions. The fastener is located in the middle of the heating tube 11 and is limited by the plurality of clamping rods 112 to prevent the fastener from shaking in the heating tank 1 during the rotation of the heating tank 1. The fastener is located in the middle of the heating tube 11 to ensure uniform heating and improve the heat treatment effect. The cooperation between the support spring 111 and the clamping rod 112 can clamp fasteners of different diameters, which greatly improves the scope of application of the device.

[0067] In addition, during the intermittent rotation of the heating tank 1, when the heating tank 1 drives the heating tube 11 to move to the side close to the cooling box 2, the flip gear 119 on the outer wall of the heating tube 11 rotates in coordination with the incomplete gear 118, the heating tube 11 rotates and the side with the cooling hole 12 rotates to the side away from the heating tank 1, and the coolant enters the heating tube 11 from the cooling hole 12 to cool the heated fastener; when the heating tank 1 drives the heating tube 11 to move circumferentially out of the cooling box 2, the coolant is discharged from the cooling hole 12, and then the flip gear 119 on the outer wall of the heating tube 11 rotates again in coordination with the incomplete gear 118, and the flip gear 119 drives the heating tube 11 to rotate, so that the side of the heating tube 11 with the cooling hole 12 rotates to the side close to the heating tank 1, so that the inside of the heating tube 11 is sealed, thereby avoiding heat loss from the cooling hole 12 during the heating of the fastener, reducing energy consumption, and improving the heat treatment effect.

[0068] In addition, the present invention also provides a heat treatment process for fasteners of a hydrogen energy electrolyzer, comprising the following steps: S1. Straightening of fasteners: start the bidirectional motor 42, the output shaft of the bidirectional motor 42 drives the linkage shaft 43 to rotate, the linkage shaft 43 drives the lower rotating shaft 32 to rotate synchronously, during the rotation of the rotating shaft 32, the transmission gear 37 on its outer wall drives the upper transmission gear 37 and the rotating shaft 32 to rotate in opposite directions, the two rotating shafts 32 drive the straightening wheel 33 to rotate toward the side close to the heating tank 1, so that when the fastener is placed on the straightening wheel 33, the straightening wheel 33 straightens and conveys the fastener; when the fastener moves toward the side close to the heating tank 1 and passes through the support ring 36, the fastener passes through the middle of the support ring 36, and the support ring 36 supports the fastener during the movement of the fastener to prevent the fastener from bending downward under the action of its gravity.

[0069] S2. Heating and cooling of fasteners: The bidirectional motor 42 drives the transfer shaft 82 to rotate during rotation, and the transfer shaft 82 drives the first bevel gear 83 to rotate during rotation, and the first bevel gear 83 drives the second bevel gear 85 and the transmission shaft 84 to rotate during rotation, and the transmission shaft 84 drives the toggle wheel 86 and the toggle rod 87 to rotate synchronously during rotation. It should be noted that the toggle rod 87 is slidably docked in the toggle groove 89, so when the toggle wheel 86 rotates, the toggle rod 87 and the toggle groove 89 cooperate with each other to drive the groove wheel 88 to rotate synchronously. Under the action of the toggle groove 89, the groove wheel 88 rotates intermittently, and the angle of each rotation of the groove wheel 88 is the angle between two adjacent toggle grooves 89, and multiple toggle grooves 89 correspond to the positions of multiple heating tubes 11. Therefore, when the groove wheel 88 rotates intermittently, it drives the heating tank 1 to rotate synchronously and drives multiple heating tubes 11 to correspond to the straightening wheel 33 in turn, so as to facilitate the transmission of fasteners. In addition, the intermittent time of the rotation of the groove wheel 88 is sufficient to allow the straightening wheel 33 to transmit the fasteners to the heating tube 11, and is sufficient to allow the material withdrawal shaft 47 to push out the fasteners in the corresponding heating tube 11 and reset it.

[0070] S3, automatic material withdrawal: when the heating tank 1 drives the heating tube 11 to rotate to the side close to the material withdrawal shaft 47, the linkage shaft 43 drives the linkage gear 44 to rotate, and when the linkage gear 44 rotates, the material withdrawal shaft 47 is driven to move to the side close to the heating tube 11 by toggling the gear ring 48, and the tension spring 51 is adaptively retracted; during this period, the first bracket ring 45 and the second bracket ring 46 support the material withdrawal shaft 47 during its movement, and the material withdrawal shaft 47 drives the sliding rod 54 to move synchronously, and then the material withdrawal shaft 47 enters the heating tube 11 and pushes the fastener to move to the side close to the heat recovery box 6, and then the sliding rod 54 moves into the arc groove 53 of the second bracket ring 46, and ... The movable rod 54 slides along the arc groove 53 and drives the material removal shaft 47 to rotate downward. The material removal shaft 47 drives the multiple gear rings 48 to rotate synchronously, so that the reset grooves 49 on the multiple gear rings 48 rotate to the side close to the linkage gear 44; then the sliding rod 54 slides downward from the arc groove 53 along the second bracket ring 46 to the sliding groove 52 of the second bracket ring 46. At the same time, the reset grooves 49 on the multiple gear rings 48 are located in the same plane as the linkage gear 44, and the linkage gear 44 no longer cooperates with the gear ring 48. Under the elastic force of the tension spring 51, the material removal shaft 47 moves to the side close to the baffle 50 and resets and slides out of the heating tube 11, thereby realizing the automatic discharge of the fastener.

[0071] S4, fastener temperature recovery: When the heating tube 11 heats the fastener, the heat in the heating tube 11 enters the recovery tube 64 from the heat recovery chamber, and then enters the heat recovery box 6 from the recovery tube 64, so as to recover the temperature of the fastener. In addition, when the heating tank 1 rotates, the connecting ring 61 rotates synchronously with the heating tank 1, and the heating tube 11 drives multiple sealing plates 66 to rotate synchronously. When the sealing plate 66 rotates to the bottom of the heating tank 1, the sealing plate 66 moves along the sliding groove 65 away from the axis of the heating tank 1 under the extrusion of the cam 68, and the reset spring 67 stretches adaptively, so that the sealing plate 66 is close to the heating tube. 11 is sealed to prevent the coolant inside the heating tube 11 immersed in the coolant from flowing into the heat recovery chamber, reducing the heat temperature and affecting the heat recovery box 6 to warm the fastener; then the heating tube 11 continues to rotate and drives the sealing plate 66 below it to move away from under the cam 68. After the sealing plate 66 loses the squeezing of the cam 68, the return spring 67 adaptively contracts and drives the sealing plate 66 to move along the sliding groove 65 to the side close to the axis of the heating tank 1, so that the heating tube 11 opens on the side close to the heat recovery box 6, and after heating the fastener, the heat inside the heating tube 11 enters the heat recovery box 6 again.

[0072] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat treatment device for fasteners of a hydrogen electrolyzer, comprising a heating tank (1), a cooling box (2) installed at the bottom of the heating tank (1), two bracket plates (21) symmetrically installed on the cooling box (2) along the width direction, a driving shaft (22) rotatably connected between the two bracket plates (21), the heating tank (1) being sleeved on the outer wall of the driving shaft (22), characterized in that: A straightening mechanism (3) and a material return mechanism (4) are installed on one side of the cooling box (2) in the width direction; a plurality of heating tubes (11) are rotatably connected to the outer wall of the heating tank (1); a plurality of cooling holes (12) distributed in an arc shape of 180 degrees are opened on the outer wall of the heating tube (11); and a heat recovery box (6) is installed on the side of the heating tank (1) away from the straightening mechanism (3); The straightening mechanism (3) comprises two support frames (31), the support frames (31) being located on a side of the heating tank (1) away from the heat recovery box (6), and two groups of straightening components are rotatably connected to opposite sides of the two support frames (31), and each group of straightening components comprises two rotating shafts (32) rotatably connected between the two support frames (31) and symmetrically distributed up and down, and the outer wall of the rotating shaft (32) is provided with a straightening wheel (33), and the outer wall of the straightening wheel (33) is provided with an annular groove (34) for straightening the fastener.

2. A hydrogen energy electrolyzer fastener heat treatment device according to claim 1, characterized in that: The straightening mechanism (3) further comprises a connecting plate (35) mounted between the two support frames (31), a supporting ring (36) being provided in the middle of the connecting plate (35), the diameter of the supporting ring (36) gradually increasing on the side away from the heating tank (1), and two transmission gears (37) symmetrically distributed along the straightening wheel (33) are sleeved on the outer wall of the rotating shaft (32), and the two rotating shafts (32) located on the same horizontal line are connected via a belt drive.

3. A hydrogen energy electrolyzer fastener heat treatment device according to claim 1, characterized in that: The material return mechanism (4) comprises a bearing plate (41), the bearing plate (41) being located on a side of the cooling box (2) away from the heat recovery box (6), a bidirectional motor (42) being mounted on a side of the bearing plate (41) away from the support frame (31) via a motor seat, an output shaft of the bidirectional motor (42) passing through the bearing plate (41) and connected to a linkage shaft (43), and the linkage shaft (43) and the rotating shaft (32) near the bottom being connected via a belt drive.

4. A hydrogen electrolytic cell fastener heat treatment device according to claim 3, characterized in that: The material-removing mechanism (4) further comprises a linkage gear (44) sleeved on the outer wall of the linkage shaft (43); a first bracket ring (45) and a second bracket ring (46) are mounted on the side of the bearing plate (41) close to the support frame (31); a material-removing shaft (47) is inserted through the first bracket ring (45) and the second bracket ring (46); a plurality of toothed rings (48) meshing with the linkage gear (44) and arranged equidistantly along the axis direction of the material-removing shaft (47) are sleeved on the outer wall of the material-removing shaft (47); a plurality of toothed rings (48) meshing with the linkage gear (44) are arranged on the outer walls of the plurality of toothed rings (48); a baffle plate (50) is mounted on the side of the bearing plate (41) close to the support plate (21); a tension spring (51) is connected between the baffle plate (50) and the material-removing shaft (47).

5. A hydrogen energy electrolyzer fastener heat treatment device according to claim 4, characterized in that: The first support ring (45) and the second support ring (46) are provided with a sliding groove (52) and an arc groove (53) on a side close to the support frame (31); the sliding groove (52) and the arc groove (53) are connected to each other; the sliding groove (52) and the arc groove (53) on the first support ring (45) and the second support ring (46) are symmetrically distributed in the center; and a sliding rod (54) is installed on a side of the material withdrawal shaft (47) away from the cooling box (2) and sliding in the sliding groove (52) and the arc groove (53).

6. A hydrogen energy electrolyzer fastener heat treatment device according to claim 3, characterized in that: A bending plate (81) is installed on the side of the cooling box (2) away from the support frame (31); the bending plate (81) and the outer wall of the cooling box (2) are rotatably connected to a transfer shaft (82); the output shaft of the bidirectional motor (42) and the transfer shaft (82) are connected via a belt drive; the outer wall of the transfer shaft (82) is sleeved with a first bevel gear (83); a transmission shaft (84) is rotatably connected to the bending plate (81); the outer wall of the transmission shaft (84) is sleeved with a second bevel gear (85) meshing with the first bevel gear (83); a toggle wheel (86) is rotatably connected to the side of the outer wall of the transmission shaft (84) away from the second bevel gear (85); the toggle wheel (86) is connected to a toggle rod (87) on a side close to the heating tank (1); a groove wheel (88) is sleeved on the outer wall of the driving shaft (22) and matched with the toggle rod (87); a plurality of circumferentially equidistantly distributed toggle grooves (89) are provided on a side close to the heating tank (1).

7. A hydrogen energy electrolytic cell fastener heat treatment device according to claim 1, characterized in that: The heating tank (1) is connected to a connecting ring (61) on the side away from the support frame (31); the connecting ring (61) is rotatably connected to a rotating ring (62) on the side away from the heating tank (1); a partition (63) is installed on the side of the rotating ring (62) close to the heat recovery box (6); a heat recovery chamber connected to the plurality of heating pipes (11) is formed between the connecting ring (61), the rotating ring (62) and the partition (63); a recovery pipe (64) is connected between the partition (63) and the heat recovery box (6); the recovery pipe (64) is connected to the heat recovery box (6) and the heat recovery chamber.

8. A hydrogen energy electrolyzer fastener heat treatment device according to claim 7, characterized in that: The heating tank (1) is provided with a plurality of sliding grooves (65) corresponding to the heating tube (11) on a side close to the heat recovery box (6); a sealing plate (66) is slidably connected in the sliding groove (65); a return spring (67) is connected between the sealing plate (66) and the sliding groove (65); a cam (68) is sleeved on the outer wall of the driving shaft (22); the cam (68) is rotatably connected to a bracket plate (21) close to the heat recovery box (6) through a sleeve ring (69); a partition plate (63) is sleeved on the outer wall of the sleeve ring (69); and a protruding portion of the cam (68) is located below the sleeve ring (69).

9. A hydrogen energy electrolyzer fastener heat treatment device according to claim 7, characterized in that: Two conveying brackets (70) are installed at the bottom of the heat recovery box (6), and two conveying shafts (71) are rotatably connected to the opposite sides of the two conveying brackets (70). The driving shaft (22) and the conveying shaft (71) are connected by a belt transmission. The outer wall of the conveying shaft (71) is sleeved with a conveyor belt (72), and the outer wall of the conveyor belt (72) is installed with a plurality of heat insulation brackets (73) equidistantly distributed along the outer wall. A connecting groove (74) for the heat insulation bracket (73) to slide is opened at the bottom of the heat recovery box (6), and a discharge pipe (75) corresponding to the material withdrawal shaft (47) is connected between the partition (63) and the heat recovery box (6), and the discharge pipe (75) is connected to the heat recovery box (6) and the heat recovery chamber.

10. A heat treatment process for fasteners of a hydrogen electrolyzer, comprising a heat treatment device for fasteners of a hydrogen electrolyzer as claimed in any one of claims 1 to 9, characterized in that: The heat treatment process includes the following steps: S1: Fastener straightening: first, when the fastener is placed on the straightening wheel (33), the straightening wheel (33) straightens and conveys the fastener so that the fastener enters the heating tube (11); S2: fastener heating and cooling: the heating tube (11) heats the fastener, the heating tank (1) rotates and drives the heating tube (11) to move circumferentially, so that the heated heating tube (11) enters the cooling box (2), and the fastener is cooled by the coolant in the cooling box (2); S3: Automatic material withdrawal: After the fastener has finished cooling, the material withdrawal mechanism (4) pushes the fastener out of the heating tube (11) and pushes the fastener into the heat recovery box (6); S4: Fastener temperature recovery: The hot air in the heating pipe (11) enters the heat recovery box (6), thereby recovering the temperature of the fastener entering the heat recovery box (6).

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