Phase change energy storage cooling composite spinning tube

Abstract

This invention provides a phase change energy storage cooling composite spinning tube, belonging to the technical field of spinning tube heat dissipation. It includes two splicing segments and a connecting unit. The two splicing segments are arranged opposite each other along a first direction. From the outside to the inside, each splicing segment has a receiving cavity, a connecting groove, and a heat-conducting cavity. A baffle is provided inside the receiving cavity, slidingly connected to the splicing segment along its outer circumferential arc. The splicing segment also has an air hole communicating with the receiving cavity, and a valve is installed inside the air hole. Two aligned connecting grooves on the two splicing segments form a connecting cavity, which is filled with a heat-conducting structure. The connecting unit is located within the connecting cavity and includes a telescopic component and two connecting parts slidingly mounted on the telescopic component. The telescopic component extends and retracts along the outer circumferential arc of the splicing segment, and the connecting parts move radially along the splicing segment. The phase change energy storage cooling composite spinning tube provided by this invention reduces the possibility of external cooling media eroding the heat-conducting structure within the spinning tube's interlayer.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat dissipation through spinning tubes, specifically relating to a phase change energy storage and cooling composite spinning tube. Background Technology

[0002] The wire rod coiler is a key piece of equipment in modern high-speed wire rod rolling production lines. Its core function is to coil high-speed, high-temperature straight wire rod into regular coils through a specific internal spatial curve for subsequent transportation, cooling, and processing. Wire rod coils are prone to thermal fatigue due to prolonged exposure to high temperatures, thus requiring cooling. External water spray cooling or air cooling is commonly used; however, external cooling primarily occurs after heat has been transferred to the outside of the coil wall, meaning the cooling process lags behind the coil rod's temperature rise.

[0003] Currently, to address the hysteresis of external cooling, the tube is typically designed as a two-lobed tube with a jacket in each lobe. A heat-conducting structure is then filled within the jacket to transfer heat from the inner wall of the tube to the outer wall, reducing cooling hysteresis. While the two-lobed structure facilitates the filling and installation of the heat-conducting structure within the jacket, the seal at the connection point between the two lobes is prone to failure, resulting in gaps that allow external cooling medium to flow into the jacket and erode the heat-conducting structure. Utility Model Content

[0004] This utility model provides a phase change energy storage cooling composite spinning tube, which aims to solve the technical problem that the seal at the connection of the two-part structure of the spinning tube is prone to failure, causing the heat-conducting structure to be corroded by the external cooling medium.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a phase change energy storage and cooling composite spinning tube, comprising:

[0006] Two splicing segments are arranged opposite each other along a first direction. From the outside to the inside, each splicing segment has a receiving cavity, a connecting groove, and a heat-conducting cavity. A baffle is provided within the receiving cavity, slidingly connected to the splicing segment along its outer circumferential arc. Each splicing segment also has an air hole communicating with the receiving cavity, and a valve is provided within the air hole. Two connecting grooves aligned on the two splicing segments form a connecting cavity. The heat-conducting cavity is filled with a heat-conducting structure.

[0007] A connecting unit is disposed within the connecting cavity. The connecting unit includes a telescopic member and two connecting portions slidably disposed on the telescopic member. The telescopic member extends and retracts along the outer circumferential arc of the splicing petal, and the connecting portions move radially along the splicing petal.

[0008] In one possible implementation, the inner wall of the connecting groove is provided with a first slot, and the inner wall of the first slot is provided with a second slot, wherein the extending direction of the second slot is perpendicular to the axial direction of the first slot.

[0009] The telescopic component includes a connecting block and an extending block. The connecting block has a first air chamber communicating with the receiving cavity and two first through slots communicating with the first air chamber. The two first through slots are arranged opposite to each other on both sides of the connecting block along a first direction. The extending block is disposed in the first through slot and is slidably connected to the connecting block. The extending block moves along the axial direction of the first slot and is inserted into the first slot. The extending block has a second air chamber communicating with the first air chamber and a second through slot communicating with the second air chamber.

[0010] The connecting unit further includes a limiting block forming the connecting portion. The limiting block is disposed in the second through groove, and the limiting block is slidably connected to the protruding block. The limiting block is also adapted to be inserted into the second slot.

[0011] In one possible implementation, the storage cavity is provided with a partition, which is fixedly connected to the splicing segment. The partition divides the storage cavity into a negative pressure cavity and a sliding cavity. The baffle is provided in the sliding cavity. The second slot communicates with the negative pressure cavity. The partition is provided with a pneumatic component that communicates the negative pressure cavity and the sliding cavity. The pneumatic component is used to transfer gas between the negative pressure cavity and the sliding cavity.

[0012] In one possible implementation, each of the two baffles has an adsorption cavity on its opposite side, the adsorption cavity extending along the axial direction of the baffle, the baffle also has a first through hole connecting the adsorption cavity and the sliding cavity, a piston is slidably adapted in the adsorption cavity, the partition has a second through hole connecting the negative pressure cavity and the sliding cavity, a pull rod is provided between the first through hole and the second through hole, and the pull rod is fixedly connected to the piston.

[0013] In one possible implementation, a spring element is fixed between the pull rod and the partition, the spring element having a preload that causes the pull rod to move away from the partition.

[0014] In one possible implementation, the heat-conducting structure includes:

[0015] A heat-conducting block, wherein a high-temperature cavity, a medium-temperature cavity, and a low-temperature cavity are sequentially formed from the inside to the outside of the heat-conducting block;

[0016] A high-temperature phase change energy storage layer is disposed within the high-temperature cavity;

[0017] A medium-temperature phase change energy storage layer is disposed within the medium-temperature cavity; and

[0018] A low-temperature phase change energy storage layer is disposed within the low-temperature cavity.

[0019] In one possible implementation, positioning grooves are provided on the inner walls at both ends of the heat-conducting cavity, and positioning blocks are provided in the positioning grooves. A force-bearing surface is provided on the side of the positioning block away from the positioning groove, and the force-bearing surface faces the opening of the heat-conducting cavity. The positioning block is slidably connected to the splicing petal, and the positioning block moves radially along the splicing petal. A deformation member is fixed between the positioning block and the splicing petal, and the deformation member has a pre-tightening force that causes the positioning block to extend out of the positioning groove.

[0020] In one possible implementation, a fastening bolt is provided between the positioning block and the heat-conducting block to secure them together.

[0021] The phase change energy storage cooling composite spinning tube provided by this utility model, compared with the prior art, features baffles that slide along the outer arc of the splicing petals until the two baffles align to form a physical barrier, preventing external cooling media from seeping in. Simultaneously, the spinning tube operates at high temperatures, causing the gas in the receiving cavity to expand and increase its pressure, further strengthening the physical barrier formed by the two baffles – this is the first line of defense. The baffles also confine the telescopic component within the connecting cavity, thus shielding the gap between the two splicing petals and the seam between the two baffles – this is the second line of defense. This utility model, through the combined effect of these two lines of defense and gas expansion, strengthens the barrier between the two splicing petals, thereby reducing the possibility of external cooling media penetrating the gap between the two splicing petals and eroding the heat-conducting structure. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the phase change energy storage and cooling composite spinning tube used in this embodiment of the utility model;

[0023] Figure 2 for Figure 1 A magnified view of part A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Splicing petal; 101. Storage cavity; 1011. Negative pressure cavity; 1012. Sliding cavity; 102. Connecting groove; 103. Heat conduction cavity; 104. Baffle; 1041. Adsorption cavity; 1042. First through hole; 1043. Piston; 105. Air hole; 106. Valve; 107. First slot; 108. Second slot; 109. First air hole; 110. Partition; 1101. Pneumatic component; 1102. Second through hole; 111. Positioning groove; 112. Positioning block; 1121. Force-bearing surface; 1122. Fastening bolt; 113. Deformation component;

[0026] 20. Connecting unit; 201. Connecting block; 2011. First air chamber; 2012. First through groove; 2013. Second air hole; 202. Protruding block; 2021. Second air chamber; 2022. Second through groove; 203. Limiting block;

[0027] 30. Thermally conductive structure; 301. Thermally conductive block; 302. High-temperature phase change energy storage layer; 303. Medium-temperature phase change energy storage layer; 304. Low-temperature phase change energy storage layer;

[0028] 40. Pull rod; 401. Elastic component. Detailed Implementation

[0029] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] Please refer to the following: Figures 1 to 2 This paper describes the phase change energy storage and cooling composite spinning tube of this utility model. A phase change energy storage cooling composite spinning tube includes two splicing segments 10 and a connecting unit 20. The two splicing segments 10 are arranged opposite each other along a first direction. From the outside to the inside, each splicing segment 10 has a receiving cavity 101, a connecting groove 102, and a heat-conducting cavity 103. A baffle 104 is provided in the receiving cavity 101. The baffle 104 is slidably connected to the splicing segment 10 along the outer circumferential arc of the splicing segment 10. The splicing segment 10 also has an air hole 105 communicating with the receiving cavity 101. A valve 106 is provided in the air hole 105. The two connecting grooves 102 aligned on the two splicing segments 10 form a connecting cavity. The heat-conducting cavity 103 is filled with a heat-conducting structure 30. The connecting unit 20 is located in the connecting cavity. The connecting unit 20 includes a telescopic member and two connecting parts slidably disposed on the telescopic member. The telescopic member extends and retracts along the outer circumferential arc of the splicing segment 10, and the connecting parts move radially along the splicing segment 10.

[0031] In this embodiment, the phase change energy storage cooling composite spinning tube is assembled by first placing the heat-conducting structure 30 in the heat-conducting cavity 103, then aligning the two splicing segments 10. After alignment, the telescopic component is placed in the connecting cavity, and then the valve 106 is opened to inject gas into the receiving cavity 101 through the air hole 105. After the gas enters the receiving cavity 101, it pushes the baffle 104 to extend, thereby restricting the telescopic component within the connecting cavity. At the same time, the telescopic component activates and drives the connecting part to extend along the outer circumferential arc of the splicing segment 10. Then, the connecting part extends radially along the splicing segment 10, connecting and fixing the two splicing segments 10 through the connecting part and the telescopic component, thus completing the assembly of the spinning tube. When the heat-conducting structure 30 needs to be replaced, the operator opens the valve 106 to release the gas in the receiving cavity 101. At this time, the baffle 104 is moved to reset, and the telescopic component drives the connecting part to reset, thereby disconnecting the connection between the two splicing segments 10.

[0032] Compared with existing technologies, the baffle 104 slides along the outer arc of the splicing petal 10 until the two baffles 104 align to form a physical barrier that prevents external cooling medium from seeping in. Simultaneously, the wire-spinning tube is at a high temperature during operation. This high temperature environment causes the gas in the receiving cavity 101 to expand, increasing the gas pressure within the receiving cavity 101, thereby further strengthening the physical barrier formed by the alignment of the two baffles 104 – this is the first line of defense. The baffles 104 also confine the telescopic component within the connecting cavity, thus shielding the gap between the two splicing petals 10 and the seam between the two baffles 104 – this is the second line of defense. This invention strengthens the barrier between the two splicing petals 10 through the synergistic effect of these two lines of defense and gas expansion, thereby reducing the possibility of external cooling medium penetrating the heat-conducting structure 30 through the gap between the two splicing petals 10.

[0033] In some embodiments, see Figure 2 The inner wall of the connecting groove 102 is provided with a first slot 107, and the inner wall of the first slot 107 is provided with a second slot 108. The extension direction of the second slot 108 is perpendicular to the axial direction of the first slot 107.

[0034] The telescopic component includes a connecting block 201 and an extending block 202. The connecting block 201 has a first air chamber 2011 and two first through slots 2012 communicating with the first air chamber 2011. The two first through slots 2012 are arranged opposite to each other on both sides of the connecting block 201 along a first direction. The extending block 202 is disposed in the first through slot 2012 and is slidably connected to the connecting block 201. The extending block 202 moves along the axial direction of the first slot 107 and is inserted into the first slot 107. The extending block 202 has a second air chamber 2021 communicating with the first air chamber 2011 and a second through slot 2022 communicating with the second air chamber 2021.

[0035] The connecting unit 20 also includes a limiting block 203 forming a connecting portion. The limiting block 203 is disposed in the second through groove 2022. The limiting block 203 is slidably connected to the protruding block 202. The limiting block 203 is inserted into and adapted to the second slot 108.

[0036] Specifically, the splicing petal 10 has a first air passage 105, and the connecting block 201 has a second air passage 105 that communicates with the first air chamber 2011. The second air passage 105 corresponds to the first air passage 105. After the connecting block 201 is placed into the connecting chamber, the first air passage 105 and the second air passage 105 are aligned.

[0037] The gas entering the receiving cavity 101 passes through the first air passage 105 and the second air passage 105 into the first air chamber 2011. The gas entering the first air chamber 2011 pushes the extension block 202 out. At the same time, the gas in the first air chamber 2011 enters the second air chamber 2021. After the extension block 202 is fully inserted into the first slot 107, the gas in the first air chamber 2011 continues to enter the second air chamber 2021. Thus, the gas in the second air chamber 2021 pushes the limiting block 203 out and inserts it into the second slot 108. In this way, the two splicing segments 10 are connected and fixed by the extension block 202, the connecting block 201, and the limiting block 203.

[0038] In high-temperature environments, the gas expands due to heat, resulting in tighter axial and radial locking, and the dual-action design controlled by a single gas path significantly reduces assembly complexity.

[0039] In some embodiments, see Figure 2 The storage cavity 101 is provided with a partition 110, which is fixedly connected to the splicing petal 10. The partition 110 divides the storage cavity 101 into a negative pressure cavity 1011 and a sliding cavity 1012. A baffle 104 is provided in the sliding cavity 1012. The second slot 108 is connected to the negative pressure cavity 1011. The partition 110 is provided with a pneumatic component 1101 that connects the negative pressure cavity 1011 and the sliding cavity 1012. The pneumatic component 1101 is used to transfer gas between the negative pressure cavity 1011 and the sliding cavity 1012. The pneumatic component 1101 is an air pump.

[0040] It should be noted that valve 106 is connected to sliding cavity 1012.

[0041] After the limiting block 203 is inserted into the second slot 108, the pneumatic component 1101 is activated to fill the sliding cavity 1012 with gas from the negative pressure chamber 1011, further enhancing the sealing of the two baffles 104. At the same time, the air pressure in the negative pressure chamber 1011 is lower than the air pressure in the second air chamber 2021, thereby causing the limiting block 203 to be pulled into the negative pressure chamber 1011, further enhancing the connection strength between the limiting block 203 and the splicing petal 10.

[0042] In some embodiments, see Figure 2 Each of the two baffles 104 has an adsorption chamber 1041 on one side of the baffle 104. The adsorption chamber 1041 extends along the axial direction of the baffle 104. The baffle 104 also has a first through hole 1042 that connects the adsorption chamber 1041 and the sliding chamber 1012. A piston 1043 is slidably fitted inside the adsorption chamber 1041. The partition 110 has a second through hole 1102 that connects the negative pressure chamber 1011 and the sliding chamber 1012. A pull rod 40 is provided between the first through hole 1042 and the second through hole 1102. The pull rod 40 is fixedly connected to the piston 1043.

[0043] When the pneumatic component 1101 is activated, the gas in the negative pressure chamber 1011 is filled into the sliding chamber 1012, making the gas pressure in the negative pressure chamber 1011 lower than that in the sliding chamber 1012. As a result, the pull rod 40 is subjected to a pulling force that moves towards the negative pressure chamber 1011. Meanwhile, the increase in gas in the sliding chamber 1012 causes the baffle 104 to continue to move outward. As a result, the piston 1043 moves inward toward the adsorption chamber 1041, creating a pressure difference on both sides of the piston 1043. This causes the two baffles 104 to adhere and connect at their joint, further strengthening the barrier formed by the two baffles 104.

[0044] In some embodiments, see Figure 2 A spring element 401 is fixedly connected between the pull rod 40 and the partition 110. The spring element 401 has a preload force that causes the pull rod 40 to move away from the partition 110. The spring element 401 can be a spring or a spring rod, and the spring element 401 is made of a high-temperature resistant material.

[0045] The pull rod 40 is subjected to a pulling force that moves towards the negative pressure chamber 1011. This pulling force needs to overcome the elastic deformation of the elastic member 401 before it can pull the pull rod 40. This results in the two baffles 104 coming into contact before the pull rod 40 can be moved.

[0046] In some embodiments, see Figure 1 The heat-conducting structure 30 includes a heat-conducting block 301, a high-temperature phase change energy storage layer 302, a medium-temperature phase change energy storage layer 303, and a low-temperature phase change energy storage layer 304. The heat-conducting block 301 has a high-temperature cavity, a medium-temperature cavity, and a low-temperature cavity sequentially formed from the inside to the outside. The high-temperature phase change energy storage layer 302 is disposed in the high-temperature cavity, for example, an Al-Si alloy. The medium-temperature phase change energy storage layer 303 is disposed in the medium-temperature cavity, for example, a paraffin composite. The low-temperature phase change energy storage layer 304 is disposed in the low-temperature cavity, for example, a hydrated salt phase change material.

[0047] The high-temperature phase change energy storage layer 302 preferentially absorbs the peak heat radiated instantaneously from the surface of the wire and undergoes a solid-liquid phase change. The medium-temperature phase change energy storage layer then receives the heat dissipation energy overflowed from the high-temperature layer. Finally, the low-temperature phase change energy storage layer conducts the residual heat to the outside of the tube wall, forming an efficient thermal buffer chain. This avoids the failure of a single phase change material due to overload melting and significantly extends its service life.

[0048] In some embodiments, see Figure 2 The inner walls at both ends of the heat conduction cavity 103 are provided with positioning grooves 111, and positioning blocks 112 are provided in the positioning grooves 111. A force-bearing surface 1121 is provided on the side of the positioning block 112 away from the positioning groove 111, and the force-bearing surface 1121 faces the opening of the heat conduction cavity 103. The positioning block 112 is slidably connected to the splicing petal 10. The positioning block 112 moves radially along the splicing petal 10. A deformation member 113 is fixed between the positioning block 112 and the splicing petal 10. The deformation member 113 has a pre-tightening force that causes the positioning block 112 to extend out of the positioning groove 111. The deformation member 113 can be a spring or a spring rod, and the deformation member 113 is made of a high-temperature resistant material.

[0049] A fastening bolt 1122 is provided between the positioning block 112 and the heat-conducting block 301 to fix the two together.

[0050] When the heat-conducting structure 30 needs to be replaced, the worker first removes the fastening bolt 1122, then presses the positioning block 112 so that the positioning block 112 is retracted into the positioning groove 111, and the heat-conducting structure 30 can be taken out from the heat-conducting cavity 103. When replacing the new heat-conducting structure 30, the positioning block 112 is retracted into the positioning groove 111 by pressing the force-bearing surface 1121 with the heat-conducting structure 30. After the heat-conducting structure 30 is completely inserted into the heat-conducting cavity 103, the deformation member 113 releases its elastic force to push the positioning block 112 out, thereby confining the heat-conducting structure 30 within the heat-conducting cavity 103.

[0051] Both ends of the heat-conducting cavity 103 are provided with movable positioning blocks 112, and the heat-conducting structure 30 does not need to be distinguished during installation; the wire-spinning tube is in a continuous state of motion during operation, and the position of the heat-conducting structure 30 is restricted by the positioning blocks 112 to prevent the position of the heat-conducting structure 30 from shifting.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A phase change energy storage and cooling composite spinning tube, characterized in that, include: Two splicing segments are arranged opposite each other along a first direction. From the outside to the inside, each splicing segment has a storage cavity, a connecting groove, and a heat-conducting cavity. A baffle is provided in the storage cavity. The baffle is slidably connected to the splicing segment along the outer circumferential arc of the splicing segment. The splicing segment also has an air hole communicating with the storage cavity. A valve is provided in the air hole. The two connecting grooves that are aligned on the two splicing segments form a connecting cavity. The heat-conducting cavity is filled with a heat-conducting structure. as well as A connecting unit is disposed within the connecting cavity. The connecting unit includes a telescopic member and two connecting portions slidably disposed on the telescopic member. The telescopic member extends and retracts along the outer circumferential arc of the splicing petal, and the connecting portions move radially along the splicing petal.

2. The phase change energy storage and cooling composite spinning tube as described in claim 1, characterized in that, The inner wall of the connecting groove is provided with a first slot, and the inner wall of the first slot is provided with a second slot, the extension direction of the second slot being perpendicular to the axial direction of the first slot; The telescopic component includes a connecting block and an extending block. The connecting block has a first air chamber communicating with the receiving cavity and two first through slots communicating with the first air chamber. The two first through slots are arranged opposite to each other on both sides of the connecting block along a first direction. The extending block is disposed in the first through slot and is slidably connected to the connecting block. The extending block moves along the axial direction of the first slot and is inserted into the first slot. The extending block has a second air chamber communicating with the first air chamber and a second through slot communicating with the second air chamber. The connecting unit further includes a limiting block forming the connecting portion. The limiting block is disposed in the second through groove, and the limiting block is slidably connected to the protruding block. The limiting block is also adapted to be inserted into the second slot.

3. The phase change energy storage and cooling composite spinning tube as described in claim 2, characterized in that, The storage cavity is provided with a partition, which is fixedly connected to the splicing segment. The partition divides the storage cavity into a negative pressure cavity and a sliding cavity. The baffle is provided in the sliding cavity. The second slot is connected to the negative pressure cavity. The partition is provided with a pneumatic component that connects the negative pressure cavity and the sliding cavity. The pneumatic component is used to transfer gas between the negative pressure cavity and the sliding cavity.

4. The phase change energy storage and cooling composite spinning tube as described in claim 3, characterized in that, Each of the two baffles has an adsorption chamber on one side of its opposite side. The adsorption chamber extends along the axial direction of the baffle. The baffle also has a first through hole connecting the adsorption chamber and the sliding chamber. A piston is slidably fitted inside the adsorption chamber. The partition has a second through hole connecting the negative pressure chamber and the sliding chamber. A pull rod is provided between the first through hole and the second through hole. The pull rod is fixedly connected to the piston.

5. The phase change energy storage and cooling composite spinning tube as described in claim 4, characterized in that, An elastic element is fixed between the pull rod and the partition, and the elastic element has a preload force that causes the pull rod to move away from the partition.

6. The phase change energy storage cooling composite spinning tube as described in claim 1, characterized in that, The thermally conductive structure includes: A heat-conducting block, wherein a high-temperature cavity, a medium-temperature cavity, and a low-temperature cavity are sequentially formed from the inside to the outside of the heat-conducting block; A high-temperature phase change energy storage layer is disposed within the high-temperature cavity; A medium-temperature phase change energy storage layer is disposed within the medium-temperature cavity; and A low-temperature phase change energy storage layer is disposed within the low-temperature cavity.

7. The phase change energy storage and cooling composite spinning tube as described in claim 6, characterized in that, The inner walls at both ends of the heat-conducting cavity are provided with positioning grooves, and positioning blocks are provided in the positioning grooves. A force-bearing surface is provided on the side of the positioning block away from the positioning groove, and the force-bearing surface faces the opening of the heat-conducting cavity. The positioning block is slidably connected to the splicing petal. The positioning block moves radially along the splicing petal. A deformation member is fixed between the positioning block and the splicing petal. The deformation member has a pre-tightening force that causes the positioning block to extend out of the positioning groove.

8. The phase change energy storage and cooling composite spinning tube as described in claim 7, characterized in that, A fastening bolt is provided between the positioning block and the heat-conducting block to fix them together.

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