Calendering roller water-cooling plate for photovoltaic glass production line

Abstract

The utility model relates to the technical field of photovoltaic glass production, in particular to a photovoltaic glass production line calendering roller water cooling plate which comprises a water cooling plate shell, a water cooling mechanism is arranged on the water cooling plate shell, the water cooling mechanism comprises a grating plate, a cooling outer pipe, a connecting outer pipe, a drainage pipeline and a water inlet pipeline, and a soaking mechanism is arranged on the water cooling plate shell. By arranging the soaking mechanism, when the calendaring roller drives the abutting roller to rotate through friction force, cold air on the surface of the water cooling plate shell and hot air on the surface of the calendaring roller are fully disturbed, heat transfer is accelerated through full mixing of the cold air and the hot air, and the cooling efficiency is remarkably improved; the temperature of the surrounding environment can be effectively reduced, heat absorbed by other parts of the calender due to heat radiation is reduced, the temperature of the calender is reduced, the other parts of the calender are cooled, and the working environment of operators is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic glass production technology, specifically to a water-cooled plate for a calendering roll in a photovoltaic glass production line. Background Technology

[0002] The calendering roll in a photovoltaic glass production line is a crucial component used to roll glass blanks into specific thicknesses and surface textures at high temperatures. It rolls softened glass material into thin sheets at high temperatures, ensuring the flatness and uniformity of the glass surface. The quality and temperature control of the calendering roll directly affect the light transmittance, thickness uniformity, and surface quality of the photovoltaic glass. During the calendering process, the glass is at a high temperature, and the calendering roll needs to be in contact with the hot glass for an extended period, with heat continuously transferred to the roll body, causing its temperature to gradually rise.

[0003] Chinese patent CN208218660U discloses "a cooling water distribution device for calender rolls". The water inlet pipe introduces cooling water into the first distribution pipe, and through four first conduits, the cooling water is introduced into four cooling chambers for cooling and heat absorption. The speed control valve controls the flow rate of the first conduits, thereby controlling the flow rate of water in the four cooling chambers. The water that has absorbed heat flows into the second distribution pipe through the second conduit and returns to the water tank through the water outlet pipe, completing the water circulation cooling. This ensures that the calender roll body can be cooled by water circulation and also allows the calender roll body to be cooled by distribution, ensuring a more uniform temperature on the surface of the calender roll.

[0004] Although the cooling water distribution device effectively cools the calender roll body, its cooling range is mainly limited to the inside of the roll and does not cool the external environment. As the external temperature of the roll rises, surrounding components such as the frame, support structure, and peripheral equipment also heat up due to the heat radiation from the roll, leading to an overall increase in the temperature of the equipment. Overheating affects performance, causes the lubricating oil temperature to rise, reduces its viscosity, and thus affects the friction and wear of mechanical parts, increasing the failure rate. Furthermore, excessively high external temperatures of the calender roll can lead to uneven heating during the calendering process, affecting the processing quality of the material and causing defects in the final product.

[0005] In view of this, we propose a water-cooled plate for the calendering rolls of a photovoltaic glass production line. Utility Model Content

[0006] The purpose of this utility model is to provide a water-cooled plate for calendering rolls in a photovoltaic glass production line. This water-cooled plate for calendering rolls in a photovoltaic glass production line solves the problem that it can only cool the calendering roll body and cannot reduce the external temperature.

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

[0008] A water-cooled plate for a calendering roll in a photovoltaic glass production line includes a water-cooled plate shell. A water-cooling mechanism is disposed on the water-cooled plate shell, comprising: a grid plate, a cooling outer pipe, a connecting outer pipe, a drainage pipe, and a water inlet pipe. A heat-spreading mechanism is disposed on the water-cooled plate shell, comprising:

[0009] A fixed connector is provided, one end of which is fixedly connected to the outer wall of the water-cooled plate shell, and the other end of which is fixedly connected to a fixed connecting plate. A top rotating shaft is rotatably connected to the outer wall of the fixed connecting plate, and a bottom rotating shaft is rotatably connected to the outer wall of the fixed connecting plate. An abutment roller is fixedly connected to the surface of the bottom rotating shaft. The top rotating shaft and the bottom rotating shaft are connected by a transmission belt. A connecting shaft is fixedly connected to the outer wall of the top rotating shaft, and an arc-shaped plate is fixedly connected to the surface of the connecting shaft.

[0010] In some embodiments, the inner wall of the water-cooled plate shell is fixedly connected to the grating plate, the inner wall of the grating plate is fixedly connected to the outer wall of the cooling outer pipe, the outer wall of the cooling outer pipe is fixedly connected to a connecting outer pipe, the side of the connecting outer pipe is fixedly connected to the drainage pipe, and the inner wall of the connecting outer pipe is fixedly connected to the outer wall of the water inlet pipe.

[0011] In some embodiments, the water-cooled plate outer shell is a semi-circular arc-shaped long plate, and the inner wall of the water-cooled plate outer shell is hollow.

[0012] In some embodiments, the number of fixed connecting plates is two, and the two fixed connecting plates are installed symmetrically.

[0013] In some embodiments, the surface of the connecting shaft is provided with two arc-shaped plates, which are installed in a circumferential array.

[0014] In some embodiments, the connecting shaft is located above the abutting roller, and the heat equalization mechanism is provided in several groups, which are installed on the water-cooled plate housing in a circumferential array.

[0015] In some embodiments, a plurality of grating plates are provided, the grating plates are arranged in an array, and a water inlet pipe is fixedly connected to the inner wall of the cooling outer pipe.

[0016] By employing the above technical solution, this utility model provides a water-cooled plate for the calendering rolls of a photovoltaic glass production line. It possesses at least the following beneficial effects:

[0017] (1) By setting up a heat equalization mechanism, when the calendering roller drives the contact roller to rotate through friction, the cold air on the surface of the water-cooled plate shell and the hot air on the surface of the calendering roller are fully disturbed. The full mixing of cold air and hot air accelerates the heat transfer and significantly improves the cooling efficiency. When the arc plate disturbs the air, it can effectively reduce the temperature of the surrounding environment, reduce the heat absorbed by other parts of the calendering machine due to thermal radiation, and lower their temperature. It also plays a role in heat dissipation for other parts of the calendering machine, thus improving the working environment of the operators.

[0018] (2) This utility model is equipped with a water cooling mechanism. Cooling water is input through the water inlet pipe, so that the cooling water is input along the inner wall of the connecting outer pipe and the cooling outer pipe until it reaches the inner wall of the cooling outer pipe on the side away from the connecting outer pipe. This allows the cooling water in the water inlet pipe to enter the cavity between the water inlet pipe and the cooling outer pipe, and exchange heat with the water-cooled plate shell and the grid plate to achieve the cooling effect.

[0019] (3) This utility model has a water cooling mechanism. The water inlet pipe is located on the inner wall of the cooling outer pipe and the connecting outer pipe. Because the cooling water in the part of the cooling outer pipe and the connecting outer pipe that is close to the water inlet pipe has a longer contact time for heat dissipation, the cooling water temperature in the part of the cooling outer pipe and the connecting outer pipe that is far from the water inlet pipe is higher, while the temperature input by the water inlet pipe is lower. This allows the water inlet pipe to cool down the cooling water in the cooling outer pipe and the connecting outer pipe, thereby reducing the temperature difference between the two sides of the cooling outer pipe and playing a role in uniform heat dissipation. Uniform heat dissipation helps to keep the surface temperature of the water-cooled plate shell consistent, thereby uniformly cooling the calendering roll and the external environment, avoiding uneven heating of the material due to temperature difference, thereby improving the product quality in the calendering process, reducing defects such as deformation and wrinkles, and extending the service life of the calendering roll. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure from the side view of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the water-cooled plate shell in this utility model;

[0024] Figure 4 This is a cross-sectional structural diagram of the cooling outer pipe and the connecting outer pipe in this utility model;

[0025] Figure 5 This utility model Figure 4Enlarged structural diagram at point A;

[0026] Figure 6 This is a schematic diagram of the heat dissipation mechanism in this utility model;

[0027] Figure 7 This is a schematic diagram of the arc-shaped plate in this utility model.

[0028] In the diagram: 1. Water-cooled plate shell; 2. Water-cooling mechanism; 21. Grille plate; 22. Cooling outer pipe; 23. Connecting outer pipe; 24. Drainage pipe; 25. Water inlet pipe; 3. Heat dissipation mechanism; 31. Fixed connector; 32. Fixed connecting plate; 33. Top rotating shaft; 34. Bottom rotating shaft; 35. Abutting roller; 36. Drive belt; 37. Connecting shaft; 38. Arc-shaped plate. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-7 As shown, this utility model provides a technical solution: a water-cooled plate for a photovoltaic glass production line calendering roll, including a water-cooled plate shell 1, a water-cooling mechanism 2 disposed on the water-cooled plate shell 1, the water-cooling mechanism 2 including: a grid plate 21, a cooling outer pipe 22, a connecting outer pipe 23, a drainage pipe 24, and a water inlet pipe 25; and a heat-spreading mechanism 3 disposed on the water-cooled plate shell 1, the heat-spreading mechanism 3 including:

[0031] A fixed connector 31 is fixedly connected at one end to the outer wall of the water-cooled plate housing 1, and a fixed connecting plate 32 is fixedly connected at the other end of the fixed connector 31. A top rotating shaft 33 is rotatably connected to the outer wall of the fixed connecting plate 32, and a bottom rotating shaft 34 is rotatably connected to the outer wall of the fixed connecting plate 32. An abutment roller 35 is fixedly connected to the surface of the bottom rotating shaft 34. The top rotating shaft 33 and the bottom rotating shaft 34 are connected by a transmission belt 36. A connecting shaft 37 is fixedly connected to the outer wall of the top rotating shaft 33, and an arc-shaped plate 38 is fixedly connected to the surface of the connecting shaft 37. When the calendering roller drives the abutment roller 35 to rotate through friction, the abutment roller 35 drives the bottom rotating shaft 34 to rotate. The bottom rotating shaft 34 drives the top rotating shaft 33 to rotate through the transmission belt 36. The top rotating shaft 33 drives the connecting shaft 37 to rotate, and the connecting shaft 37 drives the arc-shaped plate 38 to rotate. This causes the cold air on the surface of the water-cooled plate housing 1 and the hot air on the surface of the calendering roller to be fully disturbed. The full mixing of the cold air and the hot air accelerates the heat transfer.

[0032] The inner wall of the water-cooled plate shell 1 is fixedly connected to the grating plate 21, the inner wall of the grating plate 21 is fixedly connected to the outer wall of the cooling outer pipe 22, the outer wall of the cooling outer pipe 22 is fixedly connected to the connecting outer pipe 23, the side of the connecting outer pipe 23 is fixedly connected to the drainage pipe 24, and the inner wall of the connecting outer pipe 23 is fixedly connected to the outer wall of the water inlet pipe 25.

[0033] The water-cooled plate outer shell 1 is a semi-circular arc-shaped long plate, which facilitates the setting of the calendering roller inside the semi-circular arc of the water-cooled plate outer shell 1. The inner wall of the water-cooled plate outer shell 1 is hollow, so that the components of the water-cooling mechanism 2 can be installed on the inner wall of the water-cooled plate outer shell 1, which facilitates heat dissipation of the components. There are two fixed connecting plates 32, which are installed symmetrically on both sides of the water-cooled plate outer shell 1, so that the force is more even. The surface of the connecting shaft 37 is provided with two arc-shaped plates 38, which are installed in a circumferential array. When the connecting shaft 37 drives the arc-shaped plates 38 to rotate, the arc-shaped surface of the arc-shaped plates 38 can drive the air flow, so that the cold air on the water-cooled plate outer shell 1 and the hot air on the contact roller 35 disturb each other, which helps to break the heat layer, promote uniform temperature distribution, avoid local overheating, promote the mixing of cold air and hot air, improve heat exchange efficiency, and help the water-cooled plate outer shell 1 absorb heat more effectively. Furthermore, improving heat exchange efficiency allows the cooling system to consume less energy while maintaining the same cooling effect. The connecting shaft 37 is located above the contact roller 35. The heat equalization mechanism 3 is provided with several sets. The heat equalization mechanism 3 is installed on the water-cooled plate shell 1 in a circumferential array. Multiple contact rollers 35 contact the calendering roller, making the heat dissipation of the calendering roller more uniform. In addition, multiple arc-shaped plates 38 can effectively break the stability of the air layer, allowing cold air and hot air to mix fully, thereby improving heat exchange efficiency and ensuring that the equipment is cooled uniformly.

[0034] Several grating plates 21 are provided, arranged in an array. Multiple grating plates 21 facilitate uniform and fixed support for the cooling outer tube 22. A water inlet pipe 25 is fixedly connected to the inner wall of the cooling outer tube 22. The water inlet pipe 25 extends along the inner wall of the connecting outer tube 23 and the cooling outer tube 22 until its end is located on the inner wall of the cooling outer tube 22 away from the connecting outer tube 23. Cooling water can enter the inner wall of the cooling outer tube 22 away from the connecting outer tube 23 along the water inlet pipe 25, and then flow through the cavity between the cooling outer tube 22 and the water inlet pipe 25, as well as the cavity between the connecting outer tube 23 and the water inlet pipe 25, and finally be discharged through the drain pipe 24. The water flows through the connecting outer tube 23, the cooling outer tube 22 and the external water-cooled plate shell 1 for heat exchange, and the cooling water carries away the heat. Finally, it flows into the system return water from the drain pipe 24. The pipeline serves a cooling function. Throughout the process, the inlet pipe 25 is located on the inner wall of the cooling outer pipe 22 and the connecting outer pipe 23. Because the cooling water in the part of the cooling outer pipe 22 and the connecting outer pipe 23 that is close to the inlet pipe 25 has a longer contact time for heat dissipation, the cooling water temperature in the part of the cooling outer pipe 22 and the connecting outer pipe 23 that is far from the inlet pipe 25 is higher, while the temperature input to the inlet pipe 25 is lower. This allows the inlet pipe 25 to cool the cooling water in the cooling outer pipe 22 and the connecting outer pipe 23, thereby reducing the temperature difference between the two sides of the cooling outer pipe 22 and achieving uniform heat dissipation. Uniform heat dissipation helps to maintain a consistent surface temperature of the water-cooled plate shell 1, thereby uniformly cooling the calender roll and the external environment, avoiding uneven heating of the material due to temperature differences, thus improving product quality during the calendering process, reducing defects such as deformation and wrinkles, and extending the service life of the calender roll.

[0035] In use, the water-cooled plate for the calendering roll of the photovoltaic glass production line of this utility model introduces a cooling water supply through the water inlet pipe 25. The cooling water flows along the inner wall of the connecting outer pipe 23 and the cooling outer pipe 22 until it reaches the inner wall of the cooling outer pipe 22 on the side away from the connecting outer pipe 23. This allows the cooling water in the water inlet pipe 25 to enter the cavity between the water inlet pipe 25 and the cooling outer pipe 22, where it exchanges heat with the water-cooled plate shell 1 and the grid plate 21, thus achieving a cooling effect.

[0036] Throughout the process, the water inlet pipe 25 is located on the inner wall of the cooling outer pipe 22 and the connecting outer pipe 23. Because the cooling water in the part of the cooling outer pipe 22 and the connecting outer pipe 23 that is close to the water inlet pipe 25 has a longer contact time for heat dissipation, the cooling water temperature in the part of the cooling outer pipe 22 and the connecting outer pipe 23 that is far from the water inlet pipe 25 is higher, while the temperature input to the water inlet pipe 25 is lower. This allows the water inlet pipe 25 to cool down the cooling water in the cooling outer pipe 22 and the connecting outer pipe 23, thereby reducing the temperature difference between the two sides of the cooling outer pipe 22 and achieving uniform heat dissipation. Uniform heat dissipation helps to maintain a consistent surface temperature of the water-cooled plate shell 1, thereby uniformly cooling the calendering roll and the external environment, avoiding uneven heating of the material due to temperature differences, thus improving the product quality during the calendering process, reducing defects such as deformation and wrinkles, and extending the service life of the calendering roll.

[0037] The calendering rolls are installed inside the water-cooled plate housing 1, so that each contact roll 35 contacts the calendering roll. This allows the water-cooled plate housing 1 to dissipate heat through the heat dissipation mechanism 3 and the contact rolls 35 to the calendering rolls. Furthermore, the contact rolls 35 and the calendering rolls experience rolling friction, resulting in less wear and avoiding damage from static friction.

[0038] When the calender roll drives the contact roll 35 to rotate through friction, the contact roll 35 drives the bottom rotating shaft 34 to rotate. The bottom rotating shaft 34 drives the top rotating shaft 33 to rotate through the transmission belt 36. The top rotating shaft 33 drives the connecting shaft 37 to rotate. The connecting shaft 37 drives the arc plate 38 to rotate, which fully disturbs the cold air on the surface of the water-cooled plate shell 1 and the hot air on the surface of the calender roll. The full mixing of cold and hot air accelerates the heat transfer, breaks up the layers of hot air, promotes uniform temperature distribution, prevents local overheating, and significantly improves cooling efficiency. When the arc plate 38 disturbs the air, it can effectively reduce the temperature of the surrounding environment, reduce the heat absorbed by other parts of the calender due to thermal radiation, and lower their temperature. It also plays a role in heat dissipation for other parts of the calender, improves the working environment of the operators, reduces the discomfort caused by high temperature, and thus improves work efficiency.

[0039] 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.

[0040] 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 water-cooled plate for calendering rolls in a photovoltaic glass production line, comprising a water-cooled plate outer shell (1), characterized in that: The water-cooled plate outer shell (1) is provided with a water-cooling mechanism (2), which includes: a grid plate (21), a cooling outer pipe (22), a connecting outer pipe (23), a drainage pipe (24), and a water inlet pipe (25). The water-cooled plate outer shell (1) is provided with a heat-spreading mechanism (3), which includes: A fixed connector (31) is fixedly connected at one end to the outer wall of the water-cooled plate shell (1), and a fixed connecting plate (32) is fixedly connected at the other end of the fixed connector (31). A top rotating shaft (33) is rotatably connected to the outer wall of the fixed connecting plate (32), and a bottom rotating shaft (34) is rotatably connected to the outer wall of the fixed connecting plate (32). An abutment roller (35) is fixedly connected to the surface of the bottom rotating shaft (34). The top rotating shaft (33) and the bottom rotating shaft (34) are connected by a transmission belt (36). A connecting shaft (37) is fixedly connected to the outer wall of the top rotating shaft (33), and an arc-shaped plate (38) is fixedly connected to the surface of the connecting shaft (37).

2. The water-cooled plate for the calendering roll of a photovoltaic glass production line according to claim 1, characterized in that: The inner wall of the water-cooled plate shell (1) is fixedly connected to the grating plate (21), the inner wall of the grating plate (21) is fixedly connected to the outer wall of the cooling outer pipe (22), the outer wall of the cooling outer pipe (22) is fixedly connected to the connecting outer pipe (23), the side of the connecting outer pipe (23) is fixedly connected to the drainage pipe (24), and the inner wall of the connecting outer pipe (23) is fixedly connected to the outer wall of the water inlet pipe (25).

3. The water-cooled plate for the calendering roll of a photovoltaic glass production line according to claim 1, characterized in that: The water-cooled plate shell (1) is a semi-circular arc-shaped long plate, and the inner wall of the water-cooled plate shell (1) is hollow.

4. The water-cooled plate for the calendering roll of a photovoltaic glass production line according to claim 1, characterized in that: The number of fixed connecting plates (32) is two, and the two fixed connecting plates (32) are installed symmetrically.

5. The water-cooled plate for the calendering roll of a photovoltaic glass production line according to claim 1, characterized in that: The surface of the connecting shaft (37) is provided with two arc-shaped plates (38), which are arranged in a circumferential array.

6. The water-cooled plate for the calendering roll of a photovoltaic glass production line according to claim 1, characterized in that: The connecting shaft (37) is located above the contact roller (35), and the heat equalization mechanism (3) is provided in several groups. The heat equalization mechanism (3) is installed on the water-cooled plate shell (1) in a circumferential array.

7. A water-cooled plate for calendering rolls in a photovoltaic glass production line according to claim 2, characterized in that: The grating plate (21) is provided in a plurality of units and is arranged in an array. A water inlet pipe (25) is fixedly connected to the inner wall of the cooling outer pipe (22).

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