Aluminum alloy conductor on-line annealing device

Abstract

The utility model provides an aluminum alloy conductor online annealing device, and relates to the field of aluminum alloy conductor production. The device comprises a pay-off reel and a frame-type strander, a transition reel is arranged on one side, away from the pay-off reel, of the frame-type strander, a take-up reel is arranged on one side, away from the frame-type strander, of the transition reel, and an annealing assembly is arranged between the transition reel and the take-up reel. The method has the effect of improving the annealing sequence conversion efficiency.

Description

Technical Field

[0001] The present application relates to the field of aluminum alloy conductor production, and in particular to an online annealing device for aluminum alloy conductors. Background Art

[0002] Aluminum alloy conductor is a conductive material used for power transmission or electrical equipment, mainly made of aluminum alloy; aluminum alloy conductor has good conductivity and mechanical strength, and also has the advantages of light weight and corrosion resistance, so it is widely used in power systems and electrical equipment.

[0003] At present, the commonly used annealing devices for aluminum alloy conductors are basically pit-type annealing furnaces or box-type annealing furnaces. Both require the aluminum alloy conductors to be drawn and twisted first, then rolled into a whole reel, and placed in a pit-type annealing furnace or a box-type annealing furnace for annealing.

[0004] However, the entire annealing time is as short as 3 hours and as long as 15 hours, and the annealing efficiency is very low, which affects the conversion of the aluminum alloy conductor and prolongs the entire cable production time; and annealing the entire coil of twisted aluminum alloy conductor is likely to lead to insufficient and uneven annealing. Utility Model Content

[0005] In order to improve the problems existing in the above-mentioned technology, the present application provides an online annealing device for aluminum alloy conductors.

[0006] The present application provides an online annealing device for aluminum alloy conductors, which adopts the following technical solution:

[0007] An online annealing device for aluminum alloy conductors comprises: a pay-off drum and a frame stranding machine, wherein a transition drum is arranged on the side of the frame stranding machine away from the pay-off drum, a take-up drum is arranged on the side of the transition drum away from the frame stranding machine, and an annealing component is arranged between the transition drum and the take-up drum.

[0008] By adopting the above technical scheme, after twisting, the aluminum alloy conductor is wound up by using a transition disk; at the same time, one end of the aluminum alloy conductor is pulled to the annealing assembly and fixed to the take-up disk to anneal the aluminum alloy conductor, and the aluminum alloy conductor can be annealed while being twisted, thereby, on the one hand, improving the annealing sequence efficiency of the aluminum alloy conductor to shorten the production cycle of the entire aluminum alloy cable; on the other hand, the annealing uniformity of the aluminum alloy conductor is enhanced to a certain extent, thereby making the performance of the aluminum alloy conductor more stable.

[0009] Optionally, the annealing assembly includes: an annealing box, a wire wheel and an induction coil, the wire wheel is rotatably installed in the annealing box, and the induction coil is fixed in the annealing box.

[0010] By adopting the above technical solution, after twisting, one end of the aluminum alloy conductor is pulled into the annealing box, and induction coils are successively passed through it in a serpentine shape from top to bottom, so that the aluminum alloy conductor is heated by the induction coil to achieve the annealing effect.

[0011] Optionally, the annealing assembly further includes: a steam pipe, wherein the steam pipe is connected to the annealing box.

[0012] By adopting the above technical solution, high-temperature steam can assist the induction coil in heating the aluminum alloy conductor, thereby improving the annealing quality of the aluminum alloy conductor.

[0013] Optionally, a cooling assembly is provided on the side of the annealing box away from the transition plate, and the cooling assembly includes: a water tank, a water tank body, a submersible pump, a water suction pipe, a water inlet pipe, a branch pipe and a nozzle. The submersible pump is installed in the water tank, one end of the water suction pipe is connected to the submersible pump, and the other end passes through the water tank to extend outward and communicate with the water inlet pipe, the branch pipe is connected to the water inlet pipe, and the nozzle is installed on the branch pipe.

[0014] By adopting the above technical solution, after the aluminum alloy conductor is annealed, the submersible pump is started to pump the water in the water tank into the branch pipe, and the water is sprayed to the aluminum alloy conductor by the nozzle, so as to cool the aluminum alloy conductor; and most of the water after spraying can fall into the water tank body for collection, so as to achieve the effect of reuse.

[0015] Optionally, the cooling assembly further includes: a blower, wherein the blower is located on a side of the water tank body away from the annealing box.

[0016] By adopting the above technical solution, after the aluminum alloy conductor is sprayed, the aluminum alloy conductor passes through two blowers, so that the blowers can cool the aluminum alloy conductor.

[0017] Optionally, the annealing component further includes: a laser velocimeter, which is installed in the annealing box.

[0018] By adopting the above technical solution, the laser velocimeter can detect the linear velocity of the aluminum alloy conductor, thereby ensuring that the linear velocity of the aluminum alloy conductor at the annealing assembly is consistent with the wire drawing and stranding speed.

[0019] Optionally, the annealing assembly further includes: a first temperature sensor, wherein the first temperature sensor is installed on an outer wall of the annealing box.

[0020] By adopting the above technical solution, the first temperature sensor is used to detect the temperature of the aluminum alloy conductor after annealing to ensure that the surface temperature of the aluminum alloy conductor is not lower than 300°C. If it is lower, annealing is required again to ensure the performance of the aluminum alloy conductor.

[0021] Optionally, a water replenishment assembly is provided between the annealing box and the water tank, and the water replenishment assembly includes: a water outlet and a circulation part, the water outlet is provided in the annealing box, and the circulation part is provided between the water outlet and the water tank.

[0022] By adopting the above technical solution, after high-temperature steam is introduced into the annealing box, moisture will remain on the inner wall of the annealing box; at this time, the water outlet and the circulation part can be used to guide the moisture on the inner wall of the annealing box into the water tank for repeated use, thereby saving water resources.

[0023] Optionally, the water outlet part includes: a pressure strip, a mesh plate, a sponge, a slider, a screw rod, a driving motor and a guide plate. A slide groove is opened in the annealing box, the slider is slidably set in the slide groove, the screw rod is rotatably installed in the slide groove, and the screw rod passes through the slider and is threadedly engaged. The driving motor is installed on the annealing box, and the output shaft of the driving motor is coaxially fixed with the screw rod. The pressure strip is fixedly connected to the slider, and the sponge is fixed on the pressure strip, the mesh plate is fixed in the annealing box, and the guide plate is fixed in the annealing box.

[0024] By adopting the above technical solution, the drive motor is started to drive the screw to rotate, so that the slider can be driven to drive the pressure strip to move downward. During the movement, the sponge continuously cleans the inner wall of the annealing box and absorbs moisture; until the sponge contacts the mesh plate, the sponge is compressed, thereby squeezing out its own moisture; the cleaned and squeezed moisture will fall onto the guide plate, then flow into the connecting pipe, and finally flow into the transition box.

[0025] Optionally, the circulation part includes: a transition box, a connecting pipe, a transition pipe, a one-way solenoid valve and a second temperature sensor, one end of the connecting pipe is connected to the transition box, and the other end passes through the guide plate, the transition pipe is connected between the transition box and the water tank, and the one-way solenoid valve is installed on the transition pipe, and the second temperature sensor is installed in the transition box.

[0026] By adopting the above technical solution, the second temperature sensor is used to detect the water temperature in the transition box. When the water temperature is sufficient for cooling the aluminum alloy conductor, the one-way solenoid valve can be controlled to open the transition pipe, allowing the water in the transition box to flow into the water tank.

[0027] In summary, the present application includes at least one of the following beneficial effects:

[0028] 1. After twisting, the aluminum alloy conductor is wound up using a transition disk; at the same time, one end of the aluminum alloy conductor is pulled to the annealing assembly and fixed to the take-up disk to anneal the aluminum alloy conductor. The aluminum alloy conductor can be annealed while being twisted, thereby improving the annealing efficiency of the aluminum alloy conductor on the one hand, thereby shortening the production cycle of the entire aluminum alloy cable; on the other hand, the annealing uniformity of the aluminum alloy conductor is enhanced to a certain extent, thereby making the performance of the aluminum alloy conductor more stable.

[0029] 2. After twisting, one end of the aluminum alloy conductor is pulled into the annealing box, and in a serpentine shape from top to bottom, the induction coils are passed through in sequence, so that the aluminum alloy conductor is heated by the induction coil to achieve the annealing effect.

[0030] 3. High temperature steam can assist the induction coil to heat the aluminum alloy conductor, thereby improving the annealing quality of the aluminum alloy conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a structural schematic diagram according to Embodiment 1 of the present application;

[0032] Figure 2 yes Figure 1 A schematic structural diagram of the annealing box;

[0033] Figure 3 is along Figure 2 A schematic cross-sectional view taken along the cutting line AA in FIG.

[0034] Figure 4 yes Figure 1 A schematic structural diagram of a cooling assembly;

[0035] Figure 5 is along Figure 4 A schematic cross-sectional view taken along the cutting line BB in FIG.

[0036] Figure 6 yes Figure 1 A schematic partial enlarged view of section C;

[0037] Figure 7 is a structural schematic diagram according to Embodiment 2 of the present application;

[0038] Figure 8 yes Figure 7 A schematic structural diagram of the water replenishment component;

[0039] Fig. 9 is along Figure 8 A schematic cross-sectional view taken along the cutting line DD in FIG.

[0040] Fig.10 is along Figure 8A schematic cross-sectional view taken along the cutting line EE in FIG.

[0041] In the figure: 1, pay-off drum; 2, frame stranding machine; 3, transition drum; 4, take-up drum; 5, annealing assembly; 51, annealing box; 511, slideway; 52, wire wheel; 53, induction coil; 54, steam pipe; 55, laser velocimeter; 56, first temperature sensor; 6, cooling assembly; 61, water tank; 62, water tank body; 63, submersible pump; 64, suction pipe; 65, water inlet pipe; 66, branch pipe; 67, nozzle; 68, blower; 7, water outlet; 71, pressure strip; 72, mesh plate; 73, sponge; 74, slider; 75, screw rod; 76, drive motor; 77, guide plate; 8, circulation part; 81, transition box; 82, connecting pipe; 83, transition pipe; 84, one-way solenoid valve; 85, second temperature sensor. DETAILED DESCRIPTION

[0042] An embodiment of the present application provides an online annealing device for an aluminum alloy conductor.

[0043] Embodiment 1:

[0044] See also Figure 1 An online annealing device for aluminum alloy conductors includes: a pay-off drum 1 and a frame stranding machine 2. The pay-off drum 1 is located on one side of the frame stranding machine 2. After the aluminum alloy rod is drawn, the drawn single wires can be wound up and then sent to the frame stranding machine 2 for stranding. A transition disk 3 is provided on the side of the frame stranding machine 2 away from the pay-off drum 1. In the embodiment of the present application, servo motors are provided on the pay-off drum 1 and the transition disk 3 to automatically wind up and unwind.

[0045] See also Figure 1 In addition, a take-up drum 4 is provided on the side of the transition drum 3 away from the frame stranding machine 2. In the embodiment of the present application, the take-up drum 4 is also provided with a servo motor, and the take-up drum 4 can reel the aluminum alloy conductor.

[0046] See also Figure 1 An annealing assembly 5 is provided between the transition disk 3 and the take-up disk 4. After twisting, the aluminum alloy conductor is wound up by the transition disk 3; at the same time, one end of the aluminum alloy conductor is pulled to the annealing assembly 5 and fixed to the take-up disk 4 to anneal the aluminum alloy conductor, and ensure that the line speed of the aluminum alloy conductor at the annealing assembly 5 is consistent with the wire drawing and twisting speed, so that on the one hand, the annealing sequence efficiency of the aluminum alloy conductor can be improved to shorten the production cycle of the entire aluminum alloy cable; on the other hand, the annealing uniformity of the aluminum alloy conductor is enhanced to a certain extent, so that the performance of the aluminum alloy conductor is more stable.

[0047] See also Figure 2 and Figure 3The annealing assembly 5 includes: an annealing box 51, a wire wheel 52 and an induction coil 53. In the embodiment of the present application, the annealing box 51 is relatively closed, but is provided with a corresponding opening position and a through hole for the aluminum alloy conductor to pass through, so as to operate the aluminum alloy conductor. The induction coil 53 is installed in the annealing box 51. In the embodiment of the present application, there are four induction coils 53 in total, and the four induction coils 53 are evenly spaced and arranged in the vertical direction; the wire wheel 52 is installed in the annealing box 51, and the wire wheel 52 is used to guide the aluminum alloy conductor. After twisting, one end of the aluminum alloy conductor is pulled into the annealing box 51, and the induction coils 53 are passed through in sequence from top to bottom in a serpentine shape, so as to heat the aluminum alloy conductor by using the induction coil 53 to achieve the annealing effect.

[0048] See also Figure 3 Furthermore, the annealing assembly 5 also includes: a steam pipe 54, which is installed on the annealing box 51 and is connected to the annealing box 51. When the aluminum alloy conductor is annealed, high-temperature steam is added into the annealing box 51 by using the steam pipe 54. The steam temperature is controlled at 280°C±10°C. The high-temperature steam can assist the induction coil 53 in heating the aluminum alloy conductor, thereby improving the annealing quality of the aluminum alloy conductor.

[0049] See also Figure 3 Furthermore, the annealing assembly 5 also includes: a laser velocimeter 55, which is installed in the annealing box 51. The laser velocimeter 55 can detect the linear velocity of the aluminum alloy conductor, thereby ensuring that the linear velocity of the aluminum alloy conductor at the annealing assembly 5 is consistent with the wire drawing and stranding speed.

[0050] See also Figure 3 Furthermore, the annealing assembly 5 also includes: a first temperature sensor 56, which is installed on the outer wall of the annealing box 51. In the embodiment of the present application, the first temperature sensor 56 adopts a non-contact type. The first temperature sensor 56 is used to detect the temperature of the aluminum alloy conductor after annealing to ensure that the surface temperature of the aluminum alloy conductor is not lower than 300°C. If it is lower, annealing is required again to ensure the performance of the aluminum alloy conductor.

[0051] See also Figure 4 and Figure 5 A cooling assembly 6 is provided between the annealing box 51 and the take-up reel 4. The cooling assembly 6 comprises: a water tank 61, a water tank body 62, a submersible pump 63, a water suction pipe 64, a water inlet pipe 65, a branch pipe 66 and a nozzle 67. The submersible pump 63 is installed in the water tank 61, one end of the water suction pipe 64 is connected to the submersible pump 63, and the other end passes through the top wall of the water tank 61 and extends outward, and the end of the water suction pipe 64 away from the submersible pump 63 is connected to the water inlet pipe 65.

[0052] See also Figure 6, the branch pipe 66 is connected to the water inlet pipe 65. In the embodiment of the present application, a plurality of branch pipes 66 are provided and are evenly arranged along the length direction of the water inlet pipe 65; the nozzle 67 is installed on the branch pipe 66, and the water tank body 62 is located below the nozzle 67. After the aluminum alloy conductor is annealed, the submersible pump 63 is started to pump the water in the water tank 61 into the branch pipe 66, and the nozzle 67 sprays the water to the aluminum alloy conductor, thereby cooling the aluminum alloy conductor; and most of the sprayed water can fall into the water tank body 62 for collection, thereby achieving the effect of reuse.

[0053] See also Figure 1 Furthermore, the cooling assembly 6 also includes: a blower 68. In the embodiment of the present application, two blowers 68 are provided, and the two blowers 68 are arranged in a vertical direction. After spraying the aluminum alloy conductor, the aluminum alloy conductor passes between the two blowers 68, so that the blower 68 can cool the aluminum alloy conductor.

[0054] The working principle of the first embodiment is as follows: after twisting, one end of the aluminum alloy conductor is pulled into the annealing box 51, and the induction coils 53 are sequentially passed through the annealing box in a serpentine shape from top to bottom, so that the aluminum alloy conductor is heated by the induction coils 53 to achieve the annealing effect.

[0055] Embodiment 2:

[0056] See also Figure 7 The difference between this embodiment and the first embodiment is that a water replenishing assembly is arranged between the annealing box 51 and the water tank 61, and the water replenishing assembly includes: a water outlet 7 and a circulation part 88, the water outlet 7 is arranged in the annealing box 51, and the circulation part 8 is arranged between the water outlet 7 and the water tank 61. After high-temperature steam is introduced into the annealing box 51, moisture will remain on the inner wall of the annealing box 51; at this time, the water outlet 7 and the circulation part 8 can be used to guide the moisture on the inner wall of the annealing box 51 into the water tank 61 for repeated use, thereby saving water resources.

[0057] See also Figure 8 and Fig. 9 The water outlet 7 includes: a pressure strip 71, a mesh plate 72, a sponge 73, a slider 74, a screw 75, a drive motor 76 and a guide plate 77. The inner wall of the annealing box 51 is provided with a slide groove 511 in the vertical direction. The slider 74 is slidably installed in the slide groove 511 and slides in the vertical direction. The screw 75 is rotatably installed in the slide groove 511 and is vertically arranged. The screw 75 passes through the slider 74 and is threadedly matched with the slider 74. The drive motor 76 is installed on the top wall of the annealing box 51, and the output shaft of the drive motor 76 is coaxially fixed with the screw 75. When working, the drive motor 76 is started to drive the screw 75 to rotate, so as to drive the slider 74 to slide in the slide groove 511.

[0058] See also Fig. 9 The pressure strip 71 is arranged in the annealing box 51, the pressure strip 71 is fixedly connected to the slider 74, and the pressure strip 71 is annular; the sponge 73 is fixed on the bottom wall of the pressure strip 71, and the sponge 73 is in contact with the inner wall of the annealing box 51. In the embodiment of the present application, the sponge 73 is a high temperature resistant sponge 73. The mesh plate 72 is fixed on the inner wall of the annealing box 51 and is located below the pressure strip 71. The guide plate 77 is fixed on the inner wall of the annealing box 51 and is located below the mesh plate 72. The guide plate 77 is in a concave shape in the center, so that after the water falls on the guide plate 77, it can flow to the center of the guide plate 77.

[0059] See also Figure 8 The circulation part 8 includes: a transition box 81, a connecting pipe 82, a transition pipe 83, a one-way solenoid valve 84 and a second temperature sensor 85. One end of the connecting pipe 82 passes through the center of the guide plate 77, and the other end is connected to the transition box 81. The transition pipe 83 is connected between the transition box 81 and the water tank 61, and the one-way solenoid valve 84 is installed on the transition pipe 83. The one-way solenoid valve 84 is used to control the opening or closing of the transition pipe 83, and can only flow from the transition box 81 to the water tank 61. When the slider 74 moves downward in the vertical direction, the slider 74 will drive the pressure strip 71 to move downward. During the movement, the sponge 73 continuously cleans the inner wall of the annealing box 51 and absorbs moisture; until the sponge 73 contacts the mesh plate 72, the sponge 73 is compressed, thereby squeezing out its own moisture;

[0060] The water swept and squeezed out will fall onto the guide plate 77 , then flow into the connecting pipe 82 , and finally flow into the transition box 81 .

[0061] See also Fig.10 The second temperature sensor 85 is installed in the transition box 81. In the embodiment of the present application, the second temperature sensor 85 is of contact type. The second temperature sensor 85 is used to detect the water temperature in the transition box 81. When the water temperature can meet the requirements for cooling the aluminum alloy conductor, the one-way solenoid valve 84 can be controlled to open the transition pipe 83, so that the water in the transition box 81 can flow into the water tank 61.

[0062] The working principle of the second embodiment is as follows: the second temperature sensor 85 is used to detect the water temperature in the transition box 81. When the water temperature is sufficient for cooling the aluminum alloy conductor, the one-way solenoid valve 84 can be controlled to open the transition pipe 83, so that the water in the transition box 81 can flow into the water tank 61.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An online annealing device for aluminum alloy conductors, characterized in that: include: A wire pay-off drum (1) and a frame stranding machine (2), wherein a transition drum (3) is arranged on the side of the frame stranding machine (2) facing away from the wire pay-off drum (1), a wire take-up drum (4) is arranged on the side of the transition drum (3) away from the frame stranding machine (2), and an annealing assembly (5) is arranged between the transition drum (3) and the wire take-up drum (4).

2. The online annealing device for aluminum alloy conductor according to claim 1, characterized in that: The annealing assembly (5) comprises an annealing box (51), a wire wheel (52) and an induction coil (53); the wire wheel (52) is rotatably installed in the annealing box (51), and the induction coil (53) is fixed in the annealing box (51).

3. The online annealing device for aluminum alloy conductor according to claim 2, characterized in that: The annealing assembly (5) further comprises: a steam pipe (54), wherein the steam pipe (54) is connected to the annealing box (51).

4. The online annealing device for aluminum alloy conductor according to claim 2, characterized in that: A cooling assembly (6) is provided on the side of the annealing box (51) away from the transition plate (3), and the cooling assembly (6) comprises: a water tank (61), a water tank body (62), a submersible pump (63), a water suction pipe (64), a water inlet pipe (65), a branch pipe (66) and a nozzle (67). The submersible pump (63) is installed in the water tank (61), one end of the water suction pipe (64) is connected to the submersible pump (63), and the other end passes through the water tank (61) to extend outward and communicate with the water inlet pipe (65), the branch pipe (66) is communicated with the water inlet pipe (65), and the nozzle (67) is installed on the branch pipe (66).

5. The online annealing device for aluminum alloy conductor according to claim 4, characterized in that: The cooling assembly (6) further comprises: a blower (68), wherein the blower (68) is located on a side of the water tank body (62) facing away from the annealing box (51).

6. The online annealing device for aluminum alloy conductor according to claim 2, characterized in that: The annealing assembly (5) further comprises: a laser velocimeter (55), wherein the laser velocimeter (55) is installed in the annealing box (51).

7. The online annealing device for aluminum alloy conductor according to claim 6, characterized in that: The annealing assembly (5) further comprises: a first temperature sensor (56), wherein the first temperature sensor (56) is installed on the outer wall of the annealing box (51).

8. The online annealing device for aluminum alloy conductor according to claim 4, characterized in that: A water replenishment assembly is arranged between the annealing box (51) and the water tank (61), and the water replenishment assembly comprises: a water outlet (7) and a circulation part (8), the water outlet (7) is arranged in the annealing box (51), and the circulation part (8) is arranged between the water outlet (7) and the water tank (61).

9. The online annealing device for aluminum alloy conductor according to claim 8, characterized in that: The water outlet part (7) comprises: a pressure strip (71), a mesh plate (72), a sponge (73), a slider (74), a screw rod (75), a driving motor (76) and a guide plate (77); a slide groove (511) is provided in the annealing box (51); the slider (74) is slidably arranged in the slide groove (511); the screw rod (75) is rotatably installed in the slide groove (511); the screw rod (75) penetrates the slider (74) and is threadedly engaged; the driving motor (76) is installed on the annealing box (51); the output shaft of the driving motor (76) is coaxially fixed with the screw rod (75); the pressure strip (71) is fixedly connected to the slider (74); the sponge (73) is fixed on the pressure strip (71); the mesh plate (72) is fixed in the annealing box (51); and the guide plate (77) is fixed in the annealing box (51).

10. The aluminum alloy conductor online annealing device according to claim 9, characterized in that: The circulation part (8) comprises: a transition box (81), a connecting pipe (82), a transition pipe (83), a one-way solenoid valve (84) and a second temperature sensor (85); one end of the connecting pipe (82) is connected to the transition box (81), and the other end passes through the guide plate (77); the transition pipe (83) is connected between the transition box (81) and the water tank (61); the one-way solenoid valve (84) is installed on the transition pipe (83); and the second temperature sensor (85) is installed in the transition box (81).

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