Multi-layer cooling device for cable production

Abstract

This utility model relates to the field of cable manufacturing technology and discloses a multi-layer cooling device for cable manufacturing. The device includes a water tank filled with cooling water at the bottom. Three guide wheels are rotatably mounted inside the tank, guiding the cable in three horizontal sections: upper, middle, and lower. Inside the tank, two annular seats and two annular channels are fixedly mounted via support beams. The upper horizontal section passes through the upper aligned annular seats and channels, the middle horizontal section passes through the lower aligned annular seats and channels, and the lower horizontal section passes through the cooling water. Conveying components are rotatably mounted between the aligned annular seats and channels. This utility model, by setting up three horizontal cable paths (upper, middle, and lower) and combining air pump jets, submersible pump water jets, and immersion cooling, achieves multi-layer gradient cooling of the cable, solving the problems of slow cooling speed and uneven temperature distribution in traditional single-layer water tanks, and avoiding residual internal stress within the insulation layer.

Description

Technical Field

[0001] This utility model relates to the field of cable manufacturing technology, specifically to a multi-layer cooling device for cable manufacturing. Background Technology

[0002] The main processes in cable manufacturing include conductor manufacturing (single wire drawing, stranding and multiple stranding), insulation extrusion (extrusion and cooling), shielding and cabling, sheath extrusion, and quality inspection.

[0003] The heating zone temperature of the insulation layer is set according to the material properties (e.g., 180-220℃ for PE and 200-250℃ for XLPE). The corresponding cooling efficiency will affect the curing quality of the insulation layer and the production efficiency of the cable.

[0004] Traditional cooling methods often use a single-layer water tank, which has problems such as slow cooling speed and uneven temperature distribution. This can lead to residual internal stress in the insulation layer, affecting the electrical performance and mechanical strength of the cable.

[0005] Therefore, in order to solve the above problems, a multi-layer cooling device for cable manufacturing is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a multi-layer cooling device for cable manufacturing, which achieves gradient cooling of the cable insulation layer through multi-layer cooling, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer cooling device for cable manufacturing, comprising a water tank, the bottom of which is filled with cooling water; three guide wheels are rotatably installed inside the water tank, guiding the cable in three horizontal sections: upper, middle, and lower; two annular seats and two annular channels are fixedly installed inside the water tank via support beams; the upper horizontal section passes through the upper aligned annular seats and annular channels, the middle horizontal section passes through the lower aligned annular seats and annular channels, and the lower horizontal section passes through the cooling water; a conveying assembly is rotatably installed between the aligned annular seats and annular channels; a power assembly for rotating the conveying assembly and an air pump for connecting the upper annular channel are fixedly installed on the upper side of the water tank; and a submersible pump for connecting the lower annular channel is fixedly installed at the bottom of the water tank.

[0008] Specifically, the conveying assembly includes an annular pulley, a conveying pipe, and a conveying ring. An annular pulley is rotatably mounted on the side of the annular seat near the annular channel. A conveying ring is rotatably mounted on the side of the annular channel near the annular seat. One end of the conveying pipe is fixedly mounted on the side of the annular pulley near the annular channel. The other end of the conveying pipe is connected and assembled with the aligned conveying ring.

[0009] Furthermore, a nozzle is connected to the conveying pipe near the upper horizontal section, and a spray head is connected to the conveying pipe near the middle horizontal section.

[0010] Furthermore, each of the annular pulleys has at least two conveying pipes arranged in a circumferential pattern.

[0011] Furthermore, both the nozzle and the spray head are inclined, and the output direction of the nozzle and the spray head is opposite to the conveying direction of the horizontal section.

[0012] Furthermore, the conveying ring and the annular channel are open on one side close to each other. A bearing and two rotating seals are installed between the circumferential side of the annular channel and the conveying ring. The rotating seals are symmetrically distributed on both sides of the bearing.

[0013] Specifically, the power assembly includes a pulley, a belt, and a geared motor. The geared motor is fixedly installed on the upper side of the water tank via a crossbeam. The pulley is fixedly installed on the output end of the geared motor. Two annular grooves are opened on the circumference of both the annular pulley and the belt pulley, and a belt is sleeved between adjacent annular grooves.

[0014] Specifically, a servo motor for rotating the guide wheel is fixedly installed on the outer side wall of the water tank.

[0015] Specifically, two pairs of auxiliary wheels are rotatably installed at both ends of the inside of the water tank.

[0016] Specifically, a sensor array is fixedly installed on the inner sidewall of the water tank.

[0017] Compared with the prior art, the beneficial effects of this utility model are: Achieving multi-layered, efficient cooling to improve cable quality: By setting up three horizontal cable paths (upper, middle, and lower), and combining air pump jets, submersible pump water sprays, and immersion cooling, the cable undergoes multi-layered gradient cooling. This multi-layered cooling method solves the problems of slow cooling speed and uneven temperature distribution in traditional single-layer water tanks, avoids residual internal stress within the insulation layer, thereby improving the electrical performance and mechanical strength of the cable and enhancing the quality of cable manufacturing. Attached Figure Description

[0018] Figure 1 This is a schematic front view of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the structure of this utility model; Figure 3 This is an enlarged schematic diagram of the structure of the conveying component of this utility model; Figure 4 This is a schematic cross-sectional view of the conveying ring of this utility model.

[0019] In the diagram: 1 Water tank, 2 Cooling water, 3 Annular seat, 4 Power assembly, 41 Pulley, 42 Belt, 43 Gear motor, 5 Conveying assembly, 51 Annular pulley, 52 Conveying pipe, 53 Conveying ring, 6 Nozzle, 7 Spray head, 8 Air pump, 9 Annular channel, 10 Guide wheel, 11 Auxiliary wheel, 12 Sensor group, 13 Submersible pump, 14 Servo motor, 15 Rotary sealing ring, 16 Bearing. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 , Figure 2 This utility model provides a multi-layer cooling device for cable manufacturing, including a water tank 1 with an open upper side. Cooling water 2 is placed at the bottom of the water tank 1. An inlet pipe and a drain pipe are connected to the bottom of the side wall of the water tank 1. Both the inlet pipe and the drain pipe are connected to an external cooling tower through a solenoid valve to maintain the low temperature of the internal cooling water 2, thereby ensuring the heat exchange effect on the cable. The above is the existing structure and will not be described in detail here.

[0022] The water tank 1 is equipped with three guide wheels 10 that rotate inside. The three guide wheels 10 guide the cable in three horizontal sections: upper, middle and lower. The water tank 1 is fixedly installed with two annular seats 3 and two annular channels 9 by a support beam. The upper horizontal section passes through the upper aligned annular seats 3 and annular channels 9, the middle horizontal section passes through the lower aligned annular seats 3 and annular channels 9, and the lower horizontal section passes through the cooling water 2. The vertically distributed structure in space can reduce the floor space occupied.

[0023] A conveying assembly 5 is rotatably installed between the aligned annular seat 3 and the annular channel 9. A power assembly 4 for rotating the conveying assembly 5 is fixedly installed on the upper side of the water tank 1. The power assembly 4 is used to rotate the two conveying assemblies 5 simultaneously. An air pump 8 for connecting the upper annular channel 9 is fixedly installed on the upper side of the water tank 1. The air pump 8 is used to introduce high-pressure gas into the upper annular channel 9 and the upper conveying assembly 5. A submersible pump 13 for connecting the lower annular channel 9 is fixedly installed at the bottom of the water tank 1. The submersible pump 13 is used to pressurize and introduce cooling water 2 into the lower annular channel 9 and the lower conveying assembly 5.

[0024] Please see Figure 3 The specific form of the conveying component 5: The conveying assembly 5 includes an annular pulley 51, a conveying pipe 52, and a conveying ring 53. The annular seat 3 is rotatably mounted with an annular pulley 51 on the side near the annular channel 9 via bearings. The annular channel 9 is rotatably mounted with a conveying ring 53 on the side near the annular seat 3 via bearings. One end of the conveying pipe 52 is fixedly mounted on the side of the annular pulley 51 near the annular channel 9. The other end of the conveying pipe 52 is connected and assembled with the aligned conveying ring 53. The annular pulley 51, the conveying pipe 52, and the conveying ring 53 can form a whole and rotate synchronously. Correspondingly, the upper horizontal section passes through the upper conveying assembly 5, and the middle horizontal section passes through the lower conveying assembly 5.

[0025] A nozzle 6 is connected to the conveying pipe 52 near the upper horizontal section. The nozzle 6 can output the high-pressure gas in the upper conveying pipe 52 and blow it evenly on the upper horizontal section for the first layer of cooling. A spray head 7 is connected to the conveying pipe 52 near the middle horizontal section. The spray head 7 can spray the cooling water 2 in the lower conveying pipe 52 evenly on the middle horizontal section for the second layer of cooling.

[0026] Each annular pulley 51 has at least two conveying pipes 52 arranged in a circular pattern, which makes the gas output and cooling water spray more uniform.

[0027] Both nozzle 6 and nozzle 7 are inclined, and the output direction of nozzle 6 and nozzle 7 is opposite to the conveying direction of the horizontal section. The convection method can further improve the heat exchange effect.

[0028] Please see Figure 4 The conveying ring 53 and the annular channel 9 are open on one side close to each other. A bearing 16 and two rotating seal rings 15 are installed between the circumferential side of the annular channel 9 and the conveying ring 53. The rotating seal rings 15 are symmetrically distributed on both sides of the bearing 16. The bearing 16 is used to rotate and support the conveying ring 53, and the two rotating seal rings 15 are used to seal the gap between the conveying ring 53 and the annular channel 9 without affecting the rotation of the conveying ring 53.

[0029] The specific form of power component 4: The power assembly 4 includes a pulley 41, a belt 42 and a geared motor 43. The geared motor 43 is fixedly installed on the upper side of the water tank 1 via a crossbeam. The pulley 41 is fixedly installed on the output end of the geared motor 43. Two annular grooves are opened on the circumference of both the annular pulley 51 and the pulley 41. A belt 42 is sleeved between adjacent annular grooves. The two annular pulleys 51 are connected by a belt 42 on the left side of the annular groove, and the annular groove on the right side of the upper annular pulley 51 is connected by a belt 42 on the right side of the pulley 41. The belt 42 is staggered so that the power from the geared motor 43 is transmitted to the two annular pulleys 51 at the same time.

[0030] A servo motor 14 for rotating the guide wheel 10 is fixedly installed on the outer side wall of the water tank 1. The servo motor 14 rotates the guide wheel 10 along the cable conveying direction to reduce the resistance of the cable traveling in the water tank 1.

[0031] Two pairs of auxiliary wheels 11 are rotatably installed at both ends of the interior of the water tank 1. The auxiliary wheels 11 are used to guide the height of the cable to be level with the cable output height of the previous process and the cable input height of the next process, so as to facilitate the docking of this cooling device with other equipment.

[0032] A sensor group 12 is fixedly installed on the inner side wall of the water tank 1. The sensor group 12 includes an ultrasonic level sensor and a temperature sensor. The ultrasonic level sensor is used to monitor the storage height of the cooling water 2 and maintain the effect of immersing the cable by adjusting the flow rate of the inlet and outlet water. The temperature sensor is used to monitor the temperature of the cooling water 2 and maintain the low temperature of the cooling water 2 by adjusting the flow rate of the inlet and outlet water, thereby ensuring the heat exchange effect.

[0033] Working principle: The submersible pump 13, air pump 8, geared motor 43, sensor group 12, servo motor 14 and other electrical components are electrically connected to the main control cabinet made of cables. The main control cabinet is an existing component consisting of a main switch, circuit breaker, contactor, controller, keypad and other structures, used for coordinated operation and parameter setting.

[0034] During operation, the servo motor 14 drives the guide wheel 10 to rotate, which works in conjunction with the auxiliary wheel 11 to make the cable travel in the water tank 1 in three horizontal sections: upper, middle and lower. This also reduces the resistance of the cable traveling in the water tank 1.

[0035] The ultrasonic liquid level sensor in sensor group 12 monitors the storage height of cooling water 2 in real time. When the liquid level is lower than the set value, the main control cabinet opens the solenoid valve on the inlet pipe to replenish cooling water 2 into the water tank 1. When the liquid level is higher than the set value, the solenoid valve on the drain pipe opens to drain excess cooling water 2, so as to ensure that the cooling water 2 can submerge the lower horizontal section of the cable and ensure the heat exchange effect.

[0036] The temperature sensor monitors the temperature of cooling water 2 in real time. When the temperature is higher than the set value, the main control cabinet opens the solenoid valves on the inlet pipe and the outlet pipe at the same time to accelerate the circulation speed of cooling water 2. Through heat exchange with the external cooling tower, the cooling water 2 is kept at a low temperature, thereby ensuring the heat exchange effect on the cable.

[0037] The geared motor 43 rotates the two conveying components 5. For the upper horizontal section of the cable, the air pump 8 introduces high-pressure gas into the upper annular channel 9 and the upper conveying component 5. The high-pressure gas is evenly blown onto the cable surface through the nozzle 6 via the conveying pipe 52 for the first layer of cooling. For the middle horizontal section of the cable, the submersible pump 13 pressurizes and introduces cooling water 2 into the lower annular channel 9 and the lower conveying assembly 5. The cooling water 2 is then evenly sprayed onto the cable surface through the nozzle 7 via the conveying pipe 52 for a second layer of cooling.

[0038] Finally, it enters the cooling water 2 for immersion cooling and is then discharged.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-layer cooling device for cable manufacturing, comprising a water tank (1) with cooling water (2) contained at the bottom, characterized in that: The water tank (1) is equipped with three guide wheels (10) that rotate inside. The three guide wheels (10) guide the cable in three horizontal sections: upper, middle and lower. The interior of the water tank (1) is fixedly installed with two annular seats (3) and two annular channels (9) by a support beam. The upper horizontal section passes through the upper aligned annular seats (3) and annular channels (9), the middle horizontal section passes through the lower aligned annular seats (3) and annular channels (9), and the lower horizontal section passes through the cooling water (2). A conveying assembly (5) is rotatably installed between the aligned annular seat (3) and the annular channel (9). A power assembly (4) for rotating the conveying assembly (5) and an air pump (8) for connecting the upper annular channel (9) are fixedly installed on the upper side of the water tank (1). A submersible pump (13) for connecting the lower annular channel (9) is fixedly installed at the bottom of the water tank (1).

2. The multi-layer cooling device for cable manufacturing according to claim 1, characterized in that: The conveying assembly (5) includes an annular pulley (51), a conveying pipe (52), and a conveying ring (53). The annular seat (3) is rotatably mounted with an annular pulley (51) on the side near the annular channel (9). The annular channel (9) is rotatably mounted with a conveying ring (53) on the side near the annular seat (3). One end of the conveying pipe (52) is fixedly mounted on the side of the annular pulley (51) near the annular channel (9). The other end of the conveying pipe (52) is connected and assembled with the aligned conveying ring (53).

3. The multi-layer cooling device for cable manufacturing according to claim 2, characterized in that: A nozzle (6) is connected to the conveying pipe (52) near the upper horizontal section, and a spray head (7) is connected to the conveying pipe (52) near the middle horizontal section.

4. The multi-layer cooling device for cable manufacturing according to claim 2, characterized in that: Each of the annular pulleys (51) has at least two conveying pipes (52) arranged in a circular pattern.

5. The multi-layer cooling device for cable manufacturing according to claim 3, characterized in that: Both the nozzle (6) and the spray head (7) are inclined, and the output direction of the nozzle (6) and the spray head (7) is opposite to the conveying direction of the horizontal section.

6. The multi-layer cooling device for cable manufacturing according to claim 2, characterized in that: The conveying ring (53) and the annular channel (9) are open on one side close to each other. A bearing (16) and two rotating seals (15) are installed between the circumferential side of the annular channel (9) and the conveying ring (53). The rotating seals (15) are symmetrically distributed on both sides of the bearing (16).

7. The multi-layer cooling device for cable manufacturing according to claim 2, characterized in that: The power assembly (4) includes a pulley (41), a belt (42) and a geared motor (43). The geared motor (43) is fixedly installed on the upper side of the water tank (1) via a crossbeam. The pulley (41) is fixedly installed at the output end of the geared motor (43). Two annular grooves are opened on the circumference of both the annular pulley (51) and the pulley (41). A belt (42) is sleeved between adjacent annular grooves.

8. The multi-layer cooling device for cable manufacturing according to claim 1, characterized in that: A servo motor (14) for rotating the guide wheel (10) is fixedly installed on the outer side wall of the water tank (1).

9. The multi-layer cooling device for cable manufacturing according to claim 1, characterized in that: The water tank (1) has two pairs of auxiliary wheels (11) rotatably installed at both ends inside.

10. The multi-layer cooling device for cable manufacturing according to claim 1, characterized in that: A sensor group (12) is fixedly installed on the inner side wall of the water tank (1).

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