Cooling device of photovoltaic glass calender

Abstract

The utility model relates to the technical field of calendaring machines, in particular to a photovoltaic glass calendaring machine cooling device which comprises a calendaring roller, a cooling mechanism is arranged on the inner wall of the calendaring roller, the cooling mechanism comprises an outer pipe, a spacer block, a water inlet pipe, a fixing port, a water outlet pipe and a connecting ring, and a front mechanism is arranged on the outer wall of the water inlet pipe. The front mechanism comprises a passing pipe, the inner wall of the passing pipe is fixedly connected to the outer wall of the water inlet pipe, and the top of the passing pipe is fixedly connected with a feeding pipe. Through the arrangement of the front mechanism, when more impurities are accumulated on the surface of the filter screen, the used filter piece falls down, the trapezoidal block of the filter piece is clamped with the limiting groove, and the spare filter piece moves downwards until the trapezoidal block is clamped with the positioning groove, so that the function of automatically replacing the filter piece is achieved, the manual maintenance frequency is reduced, and the working efficiency is improved. Smooth cooling water and continuous and efficient operation of the system are ensured, and reduction of the cooling effect caused by impurity blockage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of calendering technology, specifically a cooling device for a photovoltaic glass calendering machine. Background Technology

[0002] In photovoltaic glass production lines, calenders operate at high temperatures for extended periods, and the calender rolls come into direct contact with the high-temperature glass. To ensure stable operation of the calender and achieve better forming quality, a stable and effective cooling system is essential.

[0003] Chinese patent CN208218660U discloses "a cooling water distribution device for calender rolls". The device involves starting a water pump and a chiller, which pumps water from a water tank to a chiller via water pipes. The chiller then cools the water. The inlet pipe directs the cooling water into a first distribution pipe, which in turn directs it into four cooling chambers via four first conduits for cooling and heat absorption. A speed control valve regulates the flow rate of the first conduits, thus controlling the water flow rate in the four cooling chambers. The water, after absorbing heat, flows into a second distribution pipe via a second conduit and returns to the water tank via an outlet pipe, completing the water circulation cooling process. This ensures that the calender roll body can be cooled by water circulation and also allows for distributed cooling, resulting in a more uniform temperature on the calender roll surface.

[0004] However, during prolonged operation, impurities in the cooling water can adhere to the inside of the cooling system, leading to a decrease in cooling efficiency. Impurity deposits can affect the inner walls of the water distribution plate, ducts, and cooling chambers, gradually clogging channels, reducing cooling water flow, and thus lowering cooling efficiency. Furthermore, biological impurities in the water can promote the growth of algae or bacteria; biofilms adhering to the inner walls of the cooling chambers or ducts can further impair cooling performance.

[0005] In view of this, we propose a cooling device for a photovoltaic glass rolling mill. Utility Model Content

[0006] The purpose of this invention is to provide a cooling device for a photovoltaic glass rolling mill, which solves the problem that impurities adhering to the cooling water will reduce the cooling effect.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A cooling device for a photovoltaic glass calendering machine includes a calendering roll. A cooling mechanism is provided on the inner wall of the calendering roll. The cooling mechanism includes: an outer tube, a spacer block, a water inlet pipe, a fixed port, a water outlet pipe, and a connecting ring. A pre-positioning mechanism is provided on the outer wall of the water inlet pipe. The pre-positioning mechanism includes:

[0009] The inner wall of the through pipe is fixedly connected to the outer wall of the inlet pipe, the top of the through pipe is fixedly connected to the feed pipe, and the bottom of the through pipe is fixedly connected to the discharge pipe.

[0010] A filter element is disposed on the inner wall of a through pipe. The filter element includes a filter housing. An inner groove is formed on the inner wall of the filter housing. One end of a return spring is fixedly connected to the inner wall of the inner groove. A trapezoidal block is fixedly connected to the other end of the return spring. An annular sleeve is fixedly connected to the top of the trapezoidal block. A filter screen is fixedly connected to the inner wall of the annular sleeve.

[0011] The positioning groove is formed on the inner wall of the discharge pipe. The inner wall of the through pipe is provided with an arc-shaped chamfer. The top of the feed pipe is provided with a top cover plate. One end of the pressing spring is fixedly connected to the inner wall of the top cover plate. The other end of the pressing spring is fixedly connected to a pressing block. The top of the pressing block is fixedly connected to a guide rod.

[0012] A discharge mechanism is provided on the inner wall of the discharge pipe.

[0013] In some embodiments, the discharge mechanism includes a limiting groove, which is formed on the inner wall of the discharge pipe. One end of a positioning spring is fixedly connected to the inner wall of the limiting groove, and the other end of the positioning spring is fixedly connected to an L-shaped component. A cylindrical pressing component is fixedly connected to the outer wall of the L-shaped component.

[0014] In some embodiments, the inner wall of the calendering roll is fixedly connected to the connecting ring, the inner wall of the connecting ring is fixedly connected to the outer tube, the inner wall of the outer tube is fixed to one end of the spacer block, and the other end of the spacer block is fixedly connected to a water inlet pipe.

[0015] In some embodiments, the outer wall of the inlet pipe is fixedly connected to the fixed port, the outer wall of the fixed port is fixedly connected to the outer pipe, and the outer wall of the outer pipe is fixedly connected to the outlet pipe.

[0016] In some embodiments, the outer wall of the trapezoidal block is piston-connected to the inner wall of the inner groove, and the annular sleeve is piston-connected to the inner wall of the filter housing.

[0017] In some embodiments, the outer wall of the guide rod is slidably connected to the inner wall of the top cover plate, and the outer wall of the pressing block is piston-connected to the inner wall of the top cover plate.

[0018] In some embodiments, the outer wall of the cylindrical pressing member is slidably connected to the inner wall of the discharge pipe, and the outer wall of the L-shaped member is slidably connected to the inner wall of the limiting groove.

[0019] By employing the above technical solution, this utility model provides a cooling device for a photovoltaic glass rolling mill. It possesses at least the following beneficial effects:

[0020] (1) This utility model has a front-end mechanism. When there are a lot of impurities on the surface of the filter screen, the used filter element falls downwards, and the trapezoidal block of the filter element engages with the limiting groove. The spare filter element moves downwards and engages with the trapezoidal block and the positioning groove, which plays the role of automatically replacing the filter element, reducing the frequency of manual maintenance, ensuring smooth cooling water flow, continuous and efficient operation of the system, and avoiding the decrease in cooling effect caused by impurities clogging.

[0021] (2) This utility model has a cooling mechanism. The water inlet pipe is located on the inner wall of the outer pipe. Because the cooling water on the left side of the outer pipe has a longer contact time for heat dissipation, the temperature of the cooling water on the left side of the outer pipe is higher, while the temperature input by the water inlet pipe is lower. This allows the water inlet pipe to cool the cooling water on the left side of the outer pipe, thereby reducing the temperature difference between the two sides of the outer pipe and achieving uniform heat dissipation. Uniform heat dissipation helps to maintain a consistent roller surface temperature, avoid uneven heating of the material due to temperature difference, thereby improving the product quality during the calendering process, reducing defects such as deformation and wrinkles, and extending the service life of the calendering roller.

[0022] (3) This utility model has a discharge mechanism. When the staff finds that the guide rod has been lowered during the inspection, a new spare filter is replaced and then the cylindrical pressing part is pressed, so that the L-shaped part squeezes the trapezoidal block, and the used filter falls smoothly and is collected under the action of gravity. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the outer tube in this utility model;

[0026] Figure 3 This is a schematic cross-sectional view of the outer tube in this utility model;

[0027] Figure 4 This is a schematic cross-sectional view of the pipe in this utility model;

[0028] Figure 5 In this utility model Figure 4 Enlarged structural diagram at point A;

[0029] Figure 6 This is a cross-sectional structural diagram of the filter housing in this utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the filter screen in this utility model;

[0031] Figure 8 This is a schematic diagram of the positioning groove in this utility model;

[0032] Figure 9 This is a cross-sectional structural diagram of the top cover plate in this utility model.

[0033] In the diagram: 1. Calendering roller; 2. Cooling mechanism; 21. Outer tube; 22. Spacer block; 23. Water inlet pipe; 24. Fixed port; 25. Water outlet pipe; 26. Connecting ring; 3. Pre-mounted mechanism; 31. Through pipe; 32. Feed pipe; 33. Discharge pipe; 34. Filter element; 341. Filter housing; 342. Inner groove; 343. Return spring; 344. Trapezoidal block; 345. Annular sleeve; 346. Filter screen; 35. Positioning groove; 36. Arc-shaped chamfer; 37. Top cover plate; 38. Pressing spring; 39. Pressing block; 310. Guide rod; 4. Discharge mechanism; 41. Limiting groove; 42. Positioning spring; 43. L-shaped part; 44. Cylindrical pressing part. Detailed Implementation

[0034] 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.

[0035] Please see Figures 1-9As shown, this utility model provides a technical solution: a cooling device for a photovoltaic glass calendering machine, including a calendering roller 1, which is a device used on a photovoltaic glass calendering machine. A cooling mechanism 2 is provided on the inner wall of the calendering roller 1. The cooling mechanism 2 includes: an outer pipe 21, a spacer block 22, a water inlet pipe 23, a fixed port 24, a water outlet pipe 25, and a connecting ring 26. A pre-positioning mechanism 3 is provided on the outer wall of the water inlet pipe 23. The pre-positioning mechanism 3 includes: a through pipe 31, whose inner wall is fixedly connected to the outer wall of the water inlet pipe 23, through which cooling water enters the water inlet pipe 23. A feed pipe 32 is fixedly connected to the top of the through pipe 31 for placing spare filter elements 34. A discharge pipe is fixedly connected to the bottom of the through pipe 31. 33, used to discharge the used filter element 34; filter element 34, the filter element 34 is set on the inner wall of the through pipe 31, used to filter the cooling water passing through the through pipe 31, the filter element 34 includes a filter housing 341, the filter housing 341 is tightly fitted with the piston of the through pipe 31, an inner sliding groove 342 is opened on the inner wall of the filter housing 341, one end of the return spring 343 is fixedly connected to the inner wall of the inner sliding groove 342, the other end of the return spring 343 is fixedly connected to a trapezoidal block 344, the top of the trapezoidal block 344 is fixedly connected to an annular sleeve 345, and a filter screen 346 is fixedly connected to the inner wall of the annular sleeve 345; positioning groove 35, the positioning groove 35 is opened on the inner wall of the discharge pipe 33, through pipe 31 The inner wall of the filter screen 34 has an arc-shaped chamfer 36. When the spare filter element 34 moves downward, the protruding part of the trapezoidal block 344 will retract when it abuts against the arc-shaped chamfer 36. The top of the feed pipe 32 is provided with a top cover plate 37, which is fixed to the feed pipe 32 by bolts. One end of the pressing spring 38 is fixedly connected to the inner wall of the top cover plate 37, and the other end of the pressing spring 38 is fixedly connected to a pressing block 39. The top of the pressing block 39 is fixedly connected to a guide rod 310. The inner wall of the discharge pipe 33 is provided with a discharge mechanism 4. When the filtration time of the filter screen 346 is long, more impurities accumulate on the surface of the filter screen 346. At this time, the resistance of the cooling water passing through the filter screen 346 increases, and the reaction force on the filter screen 346 is to the right. The filter screen 346 drives the annular sleeve 345 to move to the right, and the annular sleeve 345 drives the trapezoidal block 344 to move to the right. At this time, the trapezoidal block 344 is no longer engaged with the positioning groove 35. Under the action of the pressing spring 38, the pressing block 39 is driven to press down on the spare filter element 34, so that the spare filter element 34 presses down on the used filter element 34, causing the used filter element 34 to fall down. This causes the trapezoidal block 344 of the filter element 34 to engage with the limiting groove 41, and the spare filter element 34 moves down to engage with the trapezoidal block 344 and the positioning groove 35. This achieves the function of automatically replacing the filter element 34, reducing the frequency of manual maintenance, ensuring smooth cooling water flow, continuous and efficient system operation, and avoiding the decrease in cooling effect caused by impurities clogging.

[0036] The discharge mechanism 4 includes a limiting groove 41, which is opened on the inner wall of the discharge pipe 33. One end of a positioning spring 42 is fixedly connected to the inner wall of the limiting groove 41, and the other end of the positioning spring 42 is fixedly connected to an L-shaped part 43. A cylindrical pressing part 44 is fixedly connected to the outer wall of the L-shaped part 43. When the staff finds that the guide rod 310 has been lowered during inspection, a new spare filter element 34 is replaced and then the cylindrical pressing part 44 is pressed, so that the L-shaped part 43 squeezes the trapezoidal block 344, so that the used filter element 34 falls smoothly and is collected under the action of gravity.

[0037] The inner wall of the calender roll 1 is fixedly connected to the connecting ring 26, and the inner wall of the connecting ring 26 is fixedly connected to the outer tube 21. The inner wall of the outer tube 21 is fixed to one end of the spacer block 22, and the other end of the spacer block 22 is fixedly connected to the water inlet pipe 23. Cooling water is filtered through the filter screen 346 inside the filter element 34 and then enters the water inlet pipe 23. After the water flows out of the other end of the water inlet pipe 23, it flows into the cavity between the outer tube 21 and the water inlet pipe 23 under the obstruction on the right side of the outer tube 21. The water flows through the outer tube 21 and exchanges heat with the high temperature of the external calender roll 1. The cooling water carries away the heat and finally flows into the system return water pipeline from the water outlet pipe 25. The water inlet pipe 23 plays a role in cooling and reducing temperature. Throughout the process, the water inlet pipe 23 is located on the inner wall of the outer pipe 21. Because the cooling water on the left side of the outer pipe 21 has a longer contact time for heat dissipation, the temperature of the cooling water on the left side of the outer pipe 21 is higher, while the temperature input by the water inlet pipe 23 is lower. This allows the water inlet pipe 23 to cool the cooling water on the left side of the outer pipe 21, thereby reducing the temperature difference between the two sides of the outer pipe 21 and achieving uniform heat dissipation. Uniform heat dissipation helps to maintain a consistent surface temperature of the calender roll 1, avoid uneven heating of the material due to temperature differences, thereby improving the product quality during the calendering process, reducing defects such as deformation and wrinkles, and extending the service life of the calender roll 1.

[0038] The outer wall of the inlet pipe 23 is fixedly connected to the fixed port 24, the outer wall of the fixed port 24 is fixedly connected to the outer pipe 21, and the outer wall of the outer pipe 21 is fixedly connected to the outlet pipe 25. The outer wall of the trapezoidal block 344 is piston-connected to the inner wall of the inner slide groove 342, allowing the trapezoidal block 344 to move back and forth stably without leakage. The annular sleeve 345 is piston-connected to the inner wall of the filter housing 341, preventing cooling water from leaking out through the gap between the annular sleeve 345 and the filter housing 341. The outer wall of the guide rod 310 is slidably connected to the inner wall of the top cover plate 37. The guide rod 310 moves with the pressing block 39 as it moves up and down. When the pressing block 39 moves downward against the spare filter element 34, the guide rod 310 also moves downward, making it easy for staff to see during inspections and replace the new spare filter element 34. The outer wall of the pressing block 39 is piston-connected to the inner wall of the top cover plate 37, allowing the pressing block 39 to slide up and down stably. The outer wall of the cylindrical pressing element 44 is slidably connected to the inner wall of the discharge pipe 33, and the outer wall of the L-shaped element 43 is slidably connected to the inner wall of the limiting groove 41.

[0039] In use, the cooling device for a photovoltaic glass calendering machine of this utility model introduces cooling water into the through pipe 31. The cooling water is filtered through the filter screen 346 inside the filter element 34, and then enters the inlet pipe 23. After flowing out of the other end of the inlet pipe 23, the water is blocked on the right side of the outer pipe 21 and flows into the cavity between the outer pipe 21 and the inlet pipe 23. The water flows through the outer pipe 21 and exchanges heat with the high temperature of the external calendering roller 1. The cooling water carries away the heat and finally flows into the system return water pipeline from the outlet pipe 25, thus achieving the function of cooling and reducing temperature. Throughout the process, the inlet pipe 23... Located on the inner wall of the outer tube 21, the cooling water on the left side of the outer tube 21 has a longer contact time for heat dissipation, resulting in a higher temperature for the cooling water on the left side of the outer tube 21. Meanwhile, the temperature input by the water inlet pipe 23 is lower, which allows the water inlet pipe 23 to cool the cooling water on the left side of the outer tube 21. This reduces the temperature difference between the two sides of the outer tube 21 and achieves uniform heat dissipation. Uniform heat dissipation helps to maintain a consistent surface temperature of the calender roll 1, avoids uneven heating of the material due to temperature differences, thereby improving product quality during the calendering process, reducing defects such as deformation and wrinkles, and extending the service life of the calender roll 1.

[0040] When the filtration time of filter screen 346 is long, more impurities accumulate on the surface of filter screen 346. At this time, the resistance of cooling water passing through filter screen 346 increases, and the reaction force on filter screen 346 is to the right. Filter screen 346 drives the annular sleeve 345 to move to the right. The annular sleeve 345 drives the trapezoidal block 344 to move to the right. At this time, the trapezoidal block 344 is no longer engaged with the positioning groove 35. At this time, under the action of the pressing spring 38, the pressing block 39 is driven to press down on the spare filter element 34. The spare filter element 34 presses down on the used filter element 34, causing the used filter element 34 to fall down. This causes the trapezoidal block 344 of filter element 34 to engage with the limiting groove 41. The spare filter element 34 moves down to engage with the trapezoidal block 344 and the positioning groove 35. This achieves the function of automatically replacing filter element 34, reducing the frequency of manual maintenance, ensuring smooth cooling water flow, continuous and efficient operation of the system, and avoiding the decrease in cooling effect caused by impurities clogging.

[0041] When the staff finds that the guide rod 310 has been lowered during the inspection, they replace it with a new spare filter element 34 and then press the cylindrical pressing part 44, so that the L-shaped part 43 squeezes the trapezoidal block 344, allowing the used filter element 34 to fall smoothly and be collected under the action of gravity.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for a photovoltaic glass calendering machine, comprising calendering rolls (1), characterized in that: The inner wall of the calender roll (1) is provided with a cooling mechanism (2), which includes: an outer tube (21), a spacer block (22), a water inlet pipe (23), a fixed port (24), a water outlet pipe (25), and a connecting ring (26). The outer wall of the water inlet pipe (23) is provided with a pre-positioning mechanism (3), which includes: Through the pipe (31), the inner wall of the through pipe (31) is fixedly connected to the outer wall of the water inlet pipe (23), the top of the through pipe (31) is fixedly connected to the feed pipe (32), and the bottom of the through pipe (31) is fixedly connected to the discharge pipe (33). A filter element (34) is disposed on the inner wall of the through pipe (31). The filter element (34) includes a filter housing (341). An inner groove (342) is provided on the inner wall of the filter housing (341). One end of a return spring (343) is fixedly connected to the inner wall of the inner groove (342). The other end of the return spring (343) is fixedly connected to a trapezoidal block (344). An annular sleeve (345) is fixedly connected to the top of the trapezoidal block (344). A filter screen (346) is fixedly connected to the inner wall of the annular sleeve (345). The positioning groove (35) is opened on the inner wall of the discharge pipe (33). The inner wall of the through pipe (31) is provided with an arc-shaped chamfer (36). The top of the feed pipe (32) is provided with a top cover plate (37). One end of the pressing spring (38) is fixedly connected to the inner wall of the top cover plate (37). The other end of the pressing spring (38) is fixedly connected to a pressing block (39). The top of the pressing block (39) is fixedly connected to a guide rod (310). The discharge pipe (33) is provided with a discharge mechanism (4) on its inner wall.

2. The photovoltaic glass rolling mill cooling device according to claim 1, characterized in that: The discharge mechanism (4) includes a limiting groove (41), which is opened on the inner wall of the discharge pipe (33). One end of a positioning spring (42) is fixedly connected to the inner wall of the limiting groove (41), and the other end of the positioning spring (42) is fixedly connected to an L-shaped part (43). A cylindrical pressing part (44) is fixedly connected to the outer wall of the L-shaped part (43).

3. The photovoltaic glass rolling mill cooling device according to claim 1, characterized in that: The inner wall of the calendering roller (1) is fixedly connected to the connecting ring (26), the inner wall of the connecting ring (26) is fixedly connected to the outer tube (21), the inner wall of the outer tube (21) is fixed to one end of the spacer block (22), and the other end of the spacer block (22) is fixedly connected to the water inlet pipe (23).

4. The photovoltaic glass rolling mill cooling device according to claim 3, characterized in that: The outer wall of the inlet pipe (23) is fixedly connected to the fixed port (24), the outer wall of the fixed port (24) is fixedly connected to the outer pipe (21), and the outer wall of the outer pipe (21) is fixedly connected to the outlet pipe (25).

5. A cooling device for a photovoltaic glass rolling mill according to claim 1, characterized in that: The outer wall of the trapezoidal block (344) is piston-connected to the inner wall of the inner groove (342), and the annular sleeve (345) is piston-connected to the inner wall of the filter housing (341).

6. A cooling device for a photovoltaic glass rolling mill according to claim 1, characterized in that: The outer wall of the guide rod (310) is slidably connected to the inner wall of the top cover plate (37), and the outer wall of the pressing block (39) is piston-connected to the inner wall of the top cover plate (37).

7. A cooling device for a photovoltaic glass rolling mill according to claim 2, characterized in that: The outer wall of the cylindrical pressing part (44) is slidably connected to the inner wall of the discharge pipe (33), and the outer wall of the L-shaped part (43) is slidably connected to the inner wall of the limiting groove (41).

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