Industrial heat storage system

Abstract

The invention relates to the technical field of heat storage systems, in particular to an industrial heat storage system which comprises a heat exchange box and a heat exchange supporting frame used for supporting the heat exchange box, a heat exchange cavity is formed in a heat exchange cavity, a pipeline structure is arranged in the heat exchange cavity, and a heat exchange pipe comprises an outer ring pipe and an inner ring pipe coaxially arranged in the outer ring pipe in a penetrating mode. A water flow channel allowing liquid to flow is formed between the outer ring pipe and the inner ring pipe, and the inner ring pipe is filled with a phase change material; during heat exchange, liquid needing heat exchange is introduced into an inlet of the heat reservoir, then the liquid is uniformly introduced into the heat exchange pipe through the first water distributor, and the liquid can exchange heat with hydrothermal liquid through the water flow channel between the outer ring pipe and the inner ring pipe and the phase change material filled in the inner ring pipe; due to the fact that the area for the liquid to pass through is the gap between the outer ring pipe and the inner ring pipe, and the inner ring pipe is filled with the phase-change materials, the needed phase-change materials are few, the sealing performance of the pipeline is better than that of the heat exchange box, and the heat exchange stability is further guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of heat storage systems, and particularly to a heat storage system for industrial use. Background Art

[0002] Heat is stored in the form of sensible heat, latent heat, or both; sensible heat is stored by increasing the temperature of the heat storage medium; water and pebbles at normal temperature are commonly used heat storage materials, and the heat storage capacity of water is three times that of stones of the same volume. Latent heat storage utilizes the characteristic that a large amount of heat of fusion is required when a material melts from a solid state to a liquid state to absorb and store heat.

[0003] Among them, Chinese Patent with application number CN202323663875.3 discloses an efficient heat storage system for heat storage, including a heat preservation housing, an inner housing, a fiberglass heat insulation layer, an outer housing, a fixing rod, a mounting plate, mounting holes, a first three-way pipe, a first valve, a second valve, a heat flow inlet, a cold flow inlet, a second three-way pipe, a third valve, a fourth valve, a heat flow outlet, a cold flow outlet, a first asbestos rope filling layer, an inlet pipe, a first disk flat shell, a partition board, a phase change material filling layer, a spiral coiled pipe, a second disk flat shell, an outlet pipe, and a second asbestos rope filling layer. When storing heat, the external heat flow can be dispersed into multiple spiral coiled pipes through the first disk flat shell. Since the spiral coiled pipes are located at different positions in the phase change material filling layer, the heat can be diffused from different positions, that is, dispersed at multiple points, and transferred to the entire phase change material filling layer, improving the efficiency and having the characteristic of efficient heat storage.

[0004] In the above solution, the phase change material filling layer is located in the internal cavity of the heat preservation housing. Due to the large area of the cavity of the entire heat preservation housing, more materials are required, and the housing is prone to cracking, resulting in the loss of sealing performance and affecting the overall heat exchange effect. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat storage system for industrial use in view of the deficiencies of the prior art.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows: A heat storage system for industrial use includes a heat exchange box and a heat exchange support frame for supporting the heat exchange box. A heat exchange cavity is formed in the heat exchange box, and a pipeline structure is arranged in the heat exchange cavity. An adiabatic steel pad is sleeved outside the heat exchange box. The pipeline structure includes a first water distributor and a second water distributor installed in the heat exchange cavity. The heat exchange box is provided with a heat storage inlet communicating with the first water distributor and a heat storage outlet communicating with the second water distributor; a plurality of heat exchange pipes are installed between the first water distributor and the second water distributor at parallel intervals, and a perforated plate for guiding and installing the heat exchange pipes is also arranged in the heat exchange cavity. The perforated plate is formed with pipeline installation holes for the heat exchange pipes to pass through. The heat exchange tube includes an outer ring tube and an inner ring tube coaxially arranged and passing through the outer ring tube. There is a water flow channel for liquid flow between the outer ring tube and the inner ring tube, and a phase change material is filled in the inner ring tube; wherein a plurality of protruding contact blocks are formed on the outer wall of the inner ring tube, and the contact blocks abut against the inner wall of the outer ring tube.

[0007] Furthermore: The first water distributor and the second water distributor are respectively formed with a flow cavity for storing liquid and an installation pipe hole communicating with the flow cavity. One end of the heat exchange tube is hermetically inserted into the installation pipe hole of the first water distributor, and the other end of the heat exchange tube is hermetically inserted into the installation pipe hole of the second water distributor.

[0008] Furthermore: A sliding connection structure is provided between the perforated plate and the heat exchange cavity. The sliding connection structure includes a guiding track arranged along the length direction of the bottom of the heat exchange cavity. A bottom sliding seat slidably matched with the guiding track is installed at the bottom of the perforated plate, a protruding guiding connection block is installed at the top of the perforated plate, and an inwardly concave sliding groove for guiding and sliding of the guiding connection block is formed by inward concavity along the length direction at the top of the heat exchange cavity.

[0009] Furthermore: The number of perforated plates is two. The heat exchange box is provided with an adjusting mechanism for driving the perforated plates to move along the length direction of the heat exchange cavity to adjust the position. A first screw sleeve is installed on the guiding connection block of one perforated plate, and a second screw sleeve is installed on the guiding connection block of the other perforated plate. The first screw sleeve and the second screw sleeve are coaxially aligned. The adjusting mechanism includes an adjusting screw arranged in the inwardly concave sliding groove. The adjusting screw is formed with a first external thread structure in transmission cooperation with the first screw sleeve and a second external thread structure in transmission cooperation with the second screw sleeve. The pitch of the first screw sleeve is the same as that of the first external thread structure, the pitch of the second screw sleeve is the same as that of the second external thread structure, and the pitch of the second external thread structure is different from that of the second external thread structure.

[0010] Furthermore: One end of the adjusting screw is installed with an adjusting head, the adjusting head is installed with a circular adjusting rod, a sealing hole for the circular adjusting rod to pass through hermetically is formed at one end of the inwardly concave sliding groove, and a rotating adjusting part is installed at the outer end of the circular adjusting rod.

[0011] Furthermore: The rotating adjusting part includes a driving motor supporting the heat exchange box. A driving gear is installed at the driving end of the driving motor. A driven gear is sleeved at the outer end of the circular adjusting rod. The driving gear and the driven gear are in meshing transmission.

[0012] Furthermore: A guiding rolling structure in rolling cooperation with the heat exchange tube is provided at the pipe installation hole of the perforated plate. The guiding rolling structure includes a plurality of activity grooves communicating with the pipe installation hole. Two adjacent activity grooves are arranged in an annular and equidistant manner around the pipe installation hole. The activity grooves are arranged radially, and guiding rollers that elastically move radially inward are installed in the activity grooves.

[0013] Further: A limiting groove is arranged in parallel on the outer side of the movable groove. A limiting block is slidably installed in the limiting groove. A compression spring is installed between the limiting block and the groove wall of the limiting groove. The compression spring can drive the limiting block to move towards the inner end of the limiting groove. A driving shaft is installed on the limiting block, and a guiding roller is sleeved on the driving shaft.

[0014] Further: A box body base is installed at the bottom of the heat exchange support frame. The heat exchange support frame is formed with a bottom circular groove and a top semi-circular groove. The cross-section of the heat exchange box is an annular shape. One heat exchange box is installed in the bottom circular groove, and the other heat exchange box is installed in the top semi-circular groove. The heat exchange support frame is provided with a rotation driving member for driving the heat exchange box to rotate.

[0015] Further: The rotation driving member includes a driving gear sleeved on the heat exchange box. The heat exchange support frame is provided with a driving rack meshing with the driving gear for transmission. The driving rack can move horizontally. A guiding ring is also sleeved on the heat exchange box. Support rollers that are in rolling cooperation with the guiding ring are respectively installed in the bottom circular groove and the top semi-circular groove.

[0016] The beneficial effects of the present invention: During heat exchange, the liquid to be heat-exchanged is introduced into the hot reservoir inlet, and then the liquid is more evenly introduced into the heat exchange tubes through the first water distributor. The liquid passes through the water flow channel between the outer ring tube and the inner ring tube, and can exchange heat with the hot liquid through the phase change material filled in the inner ring tube; when it is necessary to cool the liquid, that is, when the temperature in the heat exchange tube is lower than the temperature of the liquid, after the high-temperature liquid passes through the heat exchange tube, the phase change material filled in the inner ring tube can absorb the heat of the liquid, so that part of the temperature of the liquid is transferred to the phase change material, making the temperature of the liquid and the temperature of the phase change material close, realizing the cooling of the liquid; when it is necessary to heat the liquid, that is, when the temperature in the heat exchange tube is higher than the temperature of the liquid, after the low-temperature liquid passes through the heat exchange tube, the phase change material filled in the inner ring tube can release heat to the liquid, so that part of the temperature of the liquid is transferred to the phase change material, making the temperature of the liquid and the temperature of the phase change material close, realizing the heating of the liquid; thus realizing heat exchange; since the area for the liquid to pass through is the gap between the outer ring tube and the inner ring tube, and the phase change material is filled in the inner ring tube, the required phase change material is less, and the sealing performance of the pipeline is better than that of the heat exchange box, further ensuring the stability of heat storage and preventing heat loss. Description of the Drawings

[0017] Figure 1 It is a schematic cross-sectional structure view in the side view direction of the heat storage system.

[0018] Figure 2 It is a schematic cross-sectional structure view in the front view direction of the heat storage system.

[0019] Figure 3 It is a schematic structure view of the connection between the top semi-circular groove and the heat exchange box.

[0020] Figure 4Schematic cross-sectional structure diagram of the connection between the perforated plate and the heat exchange tube.

[0021] Figure 5 Schematic cross-sectional structure diagram of the cooperation between the guiding rolling structure and the heat exchange tube.

[0022] Figure 6 Schematic side cross-sectional structure diagram of one of the heat exchange boxes.

[0023] Figure 7 Schematic partial cross-sectional view of the sliding fit between the perforated plate and the heat exchange box.

[0024] Reference numerals include: 1 - Heat exchange support frame, 10 - Heat exchange box, 11 - Heat exchange cavity, 12 - Bottom circular groove, 13 - Top semi-circular groove, 14 - Driving gear, 15 - Driving rack, 16 - Guide ring, 17 - Support roller, 18 - Box base, 19 - Rack installation groove, 2 - Pipe structure, 20 - Installation pipe hole, 21 - First water distributor, 22 - Second water distributor, 23 - Heat reservoir inlet, 24 - Heat reservoir outlet, 25 - Heat exchange tube, 26 - Outer ring pipe, 27 - Inner ring pipe, 271 - Contact block, 28 - Water flow channel, 29 - Phase change material, 3 - Perforated plate, 31 - Guide track, 32 - Bottom sliding seat, 33 - Guide connection block, 34 - Concave sliding groove, 35 - First screw sleeve, 36 - Second screw sleeve, 37 - Adjusting screw, 38 - First external thread structure, 39 - Second external thread structure, 4 - Rotating adjusting member, 41 - Driving motor, 42 - Driving gear, 43 - Driven gear, 44 - Adjusting head, 45 - Circular adjusting rod, 46 - Sealing hole, 47 - Pipe installation hole, 5 - Guiding rolling structure, 51 - Activity groove, 52 - Guiding roller, 53 - Limiting groove, 54 - Limiting block, 55 - Compression spring, 56 - Driving shaft Detailed implementation manners

[0025] The present invention will be described in detail below with reference to the accompanying drawings.

[0026] As Figure 1-7As shown in the figure, a heat storage system for industry includes a heat exchange tank 10 and a heat exchange support frame 1 for supporting the heat exchange tank 10. A heat exchange cavity 11 is formed in the heat exchange tank 10. A pipeline structure 2 is arranged in the heat exchange cavity 11. The pipeline structure 2 includes a first water distributor 21 and a second water distributor 22 installed in the heat exchange cavity 11. The heat exchange tank 10 is provided with a heat storage inlet 23 communicated with the first water distributor 21 and a heat storage outlet 24 communicated with the second water distributor 22. A plurality of heat exchange tubes 25 arranged in parallel at intervals are installed between the first water distributor 21 and the second water distributor 22. A perforated plate 3 for guiding and installing the heat exchange tubes 25 is also arranged in the heat exchange cavity 11. The perforated plate 3 is formed with a pipeline installation hole 47 for the heat exchange tubes 25 to pass through. The heat exchange tube 25 includes an outer ring tube 26 and an inner ring tube 27 coaxially arranged and penetrating through the outer ring tube 26. A water flow channel 28 for liquid to flow is provided between the outer ring tube 26 and the inner ring tube 27. A phase change material 29 is filled in the inner ring tube 27.

[0027] During heat exchange, the liquid to be heat-exchanged is introduced into the heat storage inlet 23, and then the liquid is introduced into the heat exchange tubes 25 more evenly through the first water distributor 21. The liquid passes through the water flow channel 28 between the outer ring tube 26 and the inner ring tube 27, and can exchange heat with the hot liquid through the phase change material 29 filled in the inner ring tube 27. When it is necessary to cool the liquid, that is, when the temperature in the heat exchange tube 25 is lower than the temperature of the liquid, after the high-temperature liquid passes through the heat exchange tube 25, the phase change material 29 filled in the inner ring tube 27 can absorb the heat of the liquid, so that part of the temperature of the liquid is transferred to the phase change material 29, making the temperature of the liquid and the temperature of the phase change material 29 close, realizing the cooling of the liquid; at the same time, the heat is stored in the phase change material, thus realizing the effect of heat storage.

[0028] When it is necessary to heat the liquid, that is, when the temperature in the heat exchange tube 25 is higher than the temperature of the liquid, after the low-temperature liquid passes through the heat exchange tube 25, the phase change material 29 filled in the inner ring tube 27 can release heat to the liquid, so that part of the temperature of the liquid is transferred to the phase change material 29, making the temperature of the liquid and the temperature of the phase change material 29 close, realizing the heating of the liquid; thus realizing heat exchange; since the area for the liquid to pass through is the gap between the outer ring tube 26 and the inner ring tube 27, and the phase change material 29 is filled in the inner ring tube 27, the required phase change material 29 is less, and the sealing performance of the pipeline is better than that of the heat exchange tank 10, further ensuring the stability of heat exchange and preventing heat loss.

[0029] Further, a plurality of protruding contact blocks 271 are formed on the outer wall of the inner ring pipe 27. The contact blocks 271 abut against the inner wall of the outer ring pipe 26. Two adjacent contact blocks 271 are arranged at equal intervals in a ring shape on the outer wall of the inner ring pipe 27. There is a gap between two adjacent contact blocks 271, and this gap is a water flow channel 28 for liquid to flow through. With the above structure, it can be ensured that the inner ring pipe 27 and the outer ring pipe 26 are coaxially arranged to form a concentric circle structure, so as to ensure that the cross-sectional area of each water flow channel 28 is the same. During heat exchange, the heat exchange temperature is relatively balanced, ensuring the heat exchange effect.

[0030] Further, the first water distributor 21 and the second water distributor 22 are respectively formed with a flow cavity for storing liquid and an installation pipe hole 20 communicating with the flow cavity. One end of the heat exchange tube 25 is hermetically inserted into the installation pipe hole 20 of the first water distributor 21, and the other end of the heat exchange tube 25 is hermetically inserted into the installation pipe hole 20 of the second water distributor 22. The heat exchange tube 25 is hermetically connected between the first water distributor 21 and the second water distributor 22. The heat exchange tube 25 is hermetically connected through the installation pipe hole 20, ensuring the sealing connection between the first water distributor 21, the second water distributor 22 and the heat exchange tube 25.

[0031] Further, a sliding connection structure is provided between the perforated plate 3 and the heat exchange cavity 11. The sliding connection structure includes a guiding track 31 arranged along the length direction of the bottom of the heat exchange cavity 11. A bottom sliding seat 32 that is slidably matched with the guiding track 31 is installed at the bottom of the perforated plate 3. The perforated plate 3 can adjust its position in the heat exchange cavity 11 through the sliding cooperation between the guiding track 31 and the bottom sliding seat 32, so that the perforated plate 3 can support different positions of the heat exchange tube 25, ensuring the support stability of the heat exchange tube 25.

[0032] Preferably, the number of the perforated plates 3 is two. A convex guiding connection block 33 is installed at the top of the perforated plate 3. An inwardly concave sliding groove 34 for guiding and sliding the guiding connection block 33 is formed by inwardly concave molding along the length direction at the top of the heat exchange cavity 11. The heat exchange box 10 is provided with an adjusting mechanism for driving the perforated plate 3 to move along the length direction of the heat exchange cavity 11 to adjust the position. A first screw sleeve 35 is installed on the guiding connection block 33 of one of the perforated plates 3, and a second screw sleeve 36 is installed on the guiding connection block 33 of the other perforated plate 3. The first screw sleeve 35 and the second screw sleeve 36 are coaxially aligned. The adjusting mechanism includes an adjusting screw rod 37 arranged in the inwardly concave sliding groove 34. The adjusting screw rod 37 is formed with a first external thread structure 38 in transmission cooperation with the first screw sleeve 35 and a second external thread structure 39 in transmission cooperation with the second screw sleeve 36. The pitch of the first screw sleeve 35 is the same as that of the first external thread structure 38, and the pitch of the second screw sleeve 36 is the same as that of the second external thread structure 39. The pitch of the second external thread structure 39 is different from that of the second external thread structure 39. In this embodiment, when adjusting the position of the perforated plate 3, the adjusting screw rod 37 is rotated. The first external thread structure 38 is in transmission cooperation with the first screw sleeve 35, and the second external thread structure 39 is in transmission cooperation with the second screw sleeve 36. The perforated plate 3 slides along the inwardly concave sliding groove 34 of the heat exchange cavity 11 through the guiding connection block 33 to achieve position adjustment. Since the pitch of the second external thread structure 39 is different from that of the second external thread structure 39, when the adjusting screw rod 37 rotates, the perforated plate 3 moves to different positions and has different moving strokes, so as to support different positions and ensure the support stability of the heat exchange tube 25.

[0033] Furthermore, one end of the adjusting screw rod 37 is installed with an adjusting head 44. The adjusting head 44 is installed with a circular adjusting rod 45. A sealing hole 46 for the circular adjusting rod 45 to seal through is formed at one end of the inwardly concave sliding groove 34. A rotating adjusting member 4 is installed at the outer end of the circular adjusting rod 45. The rotating adjusting member 4 includes a driving motor 41 supported on the heat exchange box 10. A driving gear 42 is installed at the driving end of the driving motor 41. A driven gear 43 is sleeved at the outer end of the circular adjusting rod 45. The driving gear 42 and the driven gear 43 are meshed and driven; the driving motor 41 drives the driving gear 42 to rotate. Through the meshing and driving of the driving gear 42 and the driven gear 43, the circular adjusting rod 45 can rotate, so that the adjusting screw rod 37 connected to the circular adjusting rod 45 rotates to drive the adjusting screw rod 37 to be in transmission cooperation with the first screw sleeve 35 and the second screw sleeve 36, so that the two perforated plates 3 can move and move along different paths to achieve position adjustment.

[0034] At the pipe installation hole 47 of the perforated plate 3, a guiding rolling structure 5 that is in rolling fit with the heat exchange pipe 25 is provided. The guiding rolling structure 5 includes a plurality of movable grooves 51 that communicate with the pipe installation hole 47. Two adjacent movable grooves 51 are arranged at equal intervals in a ring around the periphery of the pipe installation hole 47. The movable grooves 51 are arranged radially. A guiding roller 52 that elastically moves radially inward is installed in the movable groove 51. When the perforated plate 3 moves along the length direction of the heat exchange cavity 11, the perforated plate 3 will be in sliding fit with the heat exchange pipe 25. Under the action of the guiding roller 52, rolling fit can be achieved, reducing the friction between the heat exchange pipe 25 and the pipe installation hole 47, effectively reducing friction, and effectively protecting the heat exchange pipe 25.

[0035] Preferably, a limiting groove 53 is arranged in parallel on the outer side of the movable groove 51. A limiting block 54 is slidably installed in the limiting groove 53. A compression spring 55 is installed between the limiting block 54 and the groove wall of the limiting groove 53. The compression spring 55 can drive the limiting block 54 to move towards the inner end of the limiting groove 53. A driving shaft 56 is installed on the limiting block 54, and the guiding roller 52 is sleeved on the driving shaft 56. Under the action of the limiting block 54 and the limiting groove 53, the guiding roller 52 located in the movable groove 51 will not radially extend too much. That is, when installing the heat exchange pipe 25 from the pipe installation hole 47, the heat exchange pipe 25 can radially expand the guiding roller 52, and heat exchange pipes 25 with different outer diameters can be installed, and all can be guided and positioned for heat exchange pipes 25 with different outer diameters, preventing the heat exchange pipe 25 from shifting on the perforated plate 3, achieving a positioning effect, and stably exchanging heat for the liquid. When the perforated plate 3 adjusts its position, the guiding roller 52 rotates around the driving shaft 56 to achieve rolling fit with the heat exchange pipe 25.

[0036] Furthermore, a box base 18 is installed at the bottom of the heat exchange support frame 1. The heat exchange support frame 1 is formed with a bottom circular groove 12 and a top semi-circular groove 13. The cross-section of the heat exchange box 10 is circular. One heat exchange box 10 is installed in the bottom circular groove 12, and the other heat exchange box 10 is installed in the top semi-circular groove 13. The heat exchange support frame 1 is provided with a rotation driving member that drives the heat exchange box 10 to rotate; under the drive of the rotation driving member, the heat exchange box 10 installed in the bottom circular groove 12 or installed in the top semi-circular groove 13 can rotate. Since the cross-section of the heat exchange box 10 is circular, it can rotate in the groove, so that the positions of the formed heat reservoir inlet 23 and heat reservoir outlet 24 are adjustable. When the application scenario changes, it is convenient to connect with liquid pipes at different positions without additional pipeline and interface layout, saving pipeline layout.

[0037] Specifically, the rotation driving member includes a driving gear 14 sleeved on the heat exchange box 10. The heat exchange support frame 1 is provided with a rack installation groove 19, and a driving rack 15 meshing with the driving gear 14 is slidably installed in the rack installation groove 19. The driving rack 15 can move horizontally. The heat exchange box 10 is also sleeved with a guide ring 16, and support rollers 17 that are in rolling cooperation with the guide ring 16 are respectively installed in the bottom circular groove 12 and the top semi-circular groove 13. The driving rack 15 is driven by a linear module or a telescopic cylinder to move horizontally in the rack installation groove 19. When the driving rack 15 moves, it will mesh with the driving gear 14 sleeved on the heat exchange box 10, and the heat exchange box 10 will be in rolling cooperation with the support rollers 17 through the guide ring 16 to roll-support the heat exchange box 10, preventing the driving rack 15 from overloading the heat exchange box 10 and realizing the rotation of the heat exchange box 10 to adjust the installation angle of the heat exchange box 10. So that the liquid can pass through the heat exchange tubes 25 in different areas, and the heat exchange effect is relatively uniform.

[0038] Furthermore, an adiabatic steel pad is sleeved on the outside of the heat exchange box 10. The adiabatic steel pad has a heat preservation function, which can reduce the heat loss in the heat exchange box and ensure the stability of the heat exchange system.

[0039] In addition, a heat preservation filling structure for heat preservation is provided between the heat exchange support frame 1 and the heat exchange box 10. The heat preservation filling structure can be a layered structure formed by processing heat preservation cotton. The heat preservation filling structure can be arranged in some gaps, such as the gaps between the support rollers 17 and the bottom circular groove 12 and the top semi-circular groove 13. Cooperating with the adiabatic steel pad, it can further reduce the heat loss in the heat exchange box.

[0040] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, so that it can enhance the efficiency that has never existed in the prior art during use and has practicality, becoming a product with extremely high practical value.

[0041] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. A heat storage system for industry, comprising a heat exchange tank and a heat exchange support frame for supporting the heat exchange tank. A heat exchange cavity is formed in the heat exchange chamber, and a pipeline structure is arranged in the heat exchange cavity. It is characterized in that: An adiabatic steel pad is sleeved outside the heat exchange box. The pipeline structure includes a first water distributor and a second water distributor installed in the heat exchange cavity. The heat exchange box is provided with a heat storage inlet communicated with the first water distributor and a heat storage outlet communicated with the second water distributor. A plurality of heat exchange tubes arranged in parallel at intervals are installed between the first water distributor and the second water distributor. A perforated plate for guiding the installation of the heat exchange tubes is also arranged in the heat exchange cavity, and the perforated plate is formed with pipeline installation holes for the heat exchange tubes to pass through. The heat exchange tube includes an outer ring tube and an inner ring tube coaxially arranged and penetrating through the outer ring tube. A water flow channel for liquid flow is formed between the outer ring tube and the inner ring tube, and a phase change material is filled in the inner ring tube. Wherein, a plurality of protruding contact blocks are formed on the outer wall of the inner ring tube, and the contact blocks abut against the inner wall of the outer ring tube.

2. The heat storage system for industry according to claim 1, characterized in that: The first water distributor and the second water distributor are respectively formed with a flow cavity for storing liquid and an installation pipe hole communicated with the flow cavity. One end of the heat exchange tube is hermetically inserted into the installation pipe hole of the first water distributor, and the other end of the heat exchange tube is hermetically inserted into the installation pipe hole of the second water distributor.

3. The heat storage system for industry according to claim 2, characterized in that: A sliding connection structure is arranged between the perforated plate and the heat exchange cavity. The sliding connection structure includes a guiding track arranged along the length direction of the bottom of the heat exchange cavity. A bottom sliding seat slidably matched with the guiding track is installed at the bottom of the perforated plate. A protruding guiding connection block is installed at the top of the perforated plate. An inner concave sliding groove for guiding and sliding of the guiding connection block is formed in a concave shape along the length direction at the top of the heat exchange cavity.

4. A heat storage system for industrial use according to claim 3, characterized in that: The number of the perforated plates is two. The heat exchange box is provided with an adjusting mechanism for driving the perforated plates to move along the length direction of the heat exchange cavity to adjust the position. A first screw sleeve is installed on the guiding connection block of one perforated plate, and a second screw sleeve is installed on the guiding connection block of the other perforated plate. The first screw sleeve and the second screw sleeve are coaxially aligned. The adjusting mechanism includes an adjusting screw arranged in the inner concave sliding groove. The adjusting screw is formed with a first external thread structure in transmission cooperation with the first screw sleeve and a second external thread structure in transmission cooperation with the second screw sleeve. The pitch of the first screw sleeve is the same as that of the first external thread structure, and the pitch of the second screw sleeve is the same as that of the second external thread structure. The pitch of the second external thread structure is different from that of the second external thread structure.

5. A heat storage system for industry according to claim 4, characterized in that: One end of the adjusting screw is installed with an adjusting head, and the adjusting head is installed with a circular adjusting rod. A sealing hole for the circular adjusting rod to hermetically pass through is formed at one end of the inner concave sliding groove. A rotating adjusting part is installed at the outer end of the circular adjusting rod.

6. A heat storage system for industry according to claim 5, characterized in that: The rotating adjusting part includes a driving motor supporting the heat exchange box. A driving gear is installed at the driving end of the driving motor. A driven gear is sleeved at the outer end of the circular adjusting rod. The driving gear and the driven gear are meshed and driven with each other.

7. A heat storage system for industry according to claim 1, characterized in that: A guiding rolling structure in rolling cooperation with the heat exchange tube is arranged at the pipeline installation hole of the perforated plate. The guiding rolling structure includes a plurality of activity grooves communicated with the pipeline installation hole. Two adjacent activity grooves are arranged at equal intervals in a ring shape around the pipeline installation hole. The activity grooves are arranged radially, and the activity grooves are installed with guiding rollers that elastically move radially inward.

8. A heat storage system for industrial use according to claim 7, characterized in that: A limiting groove is arranged in parallel on the outer side of the movable groove. A limiting block is slidably installed in the limiting groove. A compression spring is installed between the limiting block and the groove wall of the limiting groove. The compression spring can drive the limiting block to move towards the inner end of the limiting groove. A driving shaft is installed on the limiting block, and a guiding roller is sleeved on the driving shaft.

9. A heat storage system for industrial use according to claim 8, characterized in that: A box body base is installed at the bottom of the heat exchange support frame. The heat exchange support frame is formed with a bottom circular groove and a top semi-circular groove. The cross-section of the heat exchange box is an annular shape. One of the heat exchange boxes is installed in the bottom circular groove, and the other heat exchange box is installed in the top semi-circular groove. The heat exchange support frame is provided with a rotation driving member for driving the heat exchange box to rotate.

10. A heat storage system for industry according to claim 9, characterized in that: The rotation driving member includes a driving gear sleeved on the heat exchange box. The heat exchange support frame is provided with a driving rack meshed with the driving gear for transmission. The driving rack can move horizontally. A guiding ring is also sleeved on the heat exchange box. Support rollers that are in rolling cooperation with the guiding ring are respectively installed in the bottom circular groove and the top semi-circular groove.

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