Front heat exchange system for heating section of roller press

Abstract

The utility model discloses a preposed heat exchange system for a heating section of a roller press, which comprises a heating bin arranged at the feeding end of the roller press, and is characterized in that a conveying mechanism is arranged in the heating bin, and hot air blowing assemblies are symmetrically arranged on the upper side and the lower side of the conveying mechanism; the utility model relates to the technical field of laminated glass rolling processing, the advanced hot air blowing assemblies are introduced to replace the traditional circular tube type air duct design, the air flow speed is obviously improved, the heat energy is ensured to be transferred to the glass surface more quickly and efficiently, the heat energy utilization rate is improved, the heat energy utilization rate is increased, and the heat energy utilization rate is increased. Therefore, the heat energy conversion efficiency is obviously improved; the uniform distribution of hot air on the surface of the glass is promoted, and the phenomenon of local overheating or underheating caused by non-uniform air speed or insufficient air quantity is effectively avoided; therefore, consistent melting of the PVB adhesive film on the whole glass surface is ensured, and the quality and the performance of the laminated glass product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roll pressing processing of laminated glass, in particular to a pre - heat exchange system for the heating section of a roll press. Background Art

[0002] In the production process of laminated glass, the heating section of the roll press is a key link to fully melt the PVB film to bond two pieces of glass. The current technology usually uses a fan to drive normal - temperature air through a seamless stainless - steel pipe, which is configured with multiple exhaust holes, and the air is discharged through these holes and flows through the finned heating pipe. In this process, the cold air generated by the fan drives the air heated by the heating pipe, and finally reaches the glass surface to achieve effective heating of the film.

[0003] However, the current technology has several significant limitations in terms of heat energy conversion and transfer efficiency. First, the physical properties of the stainless - steel pipe limit the air flow rate and velocity, resulting in an inability to achieve rapid and uniform heating on the glass surface. Second, in the traditional heating method, the fan first generates cold air, and then these cold air mixes with the air heated by the heating pipe, which leads to a reduction in thermal efficiency. Due to the mixing of cold and hot air, the temperature distribution of the hot air reaching the glass surface is uneven, which not only affects the melting quality of the film but also prolongs the heating cycle, increases energy consumption, and thus limits the overall production efficiency.

[0004] In view of these technical limitations, the existing heating technologies show obvious deficiencies in improving thermal efficiency, reducing energy consumption, and improving the melting quality of the film. Therefore, there is an urgent need in the industry for an innovative heating solution to improve the efficiency and economy of laminated glass production and meet the market demand for high - performance and high - quality products. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model provides a pre - heat exchange system for the heating section of a roll press, which solves the problems raised in the background art.

[0006] To achieve the above object, the utility model is realized through the following technical solutions: A pre - heat exchange system for the heating section of a roll press includes a heating chamber arranged at the feeding end of the roll press. A conveying mechanism is arranged in the heating chamber, and hot - air blowing and sweeping components are symmetrically arranged on both the upper and lower sides of the conveying mechanism. Adjacent hot - air blowing and sweeping components at the same level are arranged alternately along the front and rear side walls of the heating chamber.

[0007] The hot - air blowing and sweeping component includes a fan, an air inlet chamber, a heater, a Y - shaped air distribution channel, and an air knife. The fan is assembled and connected to the side wall of the heating chamber, the air inlet chamber is installed at the air inlet end of the fan, the heater is installed in the heating chamber, the Y - shaped air distribution channel is arranged at the air outlet end of the fan, and the air knife is installed at the outlet end of the Y - shaped air distribution channel.

[0008] The above air knife is a long and narrow pipe groove with a wide upper part and a narrow lower part formed by welding stainless steel plates. The lower end of the long and narrow pipe groove is a strip-shaped opening, and air injection holes are arranged in the lower part of the side wall of the pipe groove.

[0009] The above air inlet chamber is assembled and connected to the air inlet end of the fan through a flange of the air chamber.

[0010] The above fan and the heating chamber are assembled and fixed to the heating chamber through a support plate and bolt connectors.

[0011] The utility model provides a preheating heat exchange system for the heating section of a roller press, which has the following beneficial effects:

[0012] 1. Enhance the thermal energy conversion efficiency: By introducing an advanced hot air blowing and sweeping component, replacing the traditional round pipe duct design, the air flow speed is significantly increased. This design optimizes the dynamic characteristics of hot air, ensuring that thermal energy is transferred to the glass surface more quickly and efficiently, thereby achieving a significant improvement in the thermal energy conversion efficiency.

[0013] 2. Achieve heating uniformity: The innovative design of the hot air blowing and sweeping component promotes the uniform distribution of hot air on the glass surface, effectively avoiding local overheating or underheating phenomena caused by uneven air speed or insufficient air volume. This uniform heating ensures the consistent melting of the PVB film on the entire glass surface, thereby improving the quality and performance of the laminated glass product.

[0014] 3. Innovative heating process: This system subverts the traditional heating process. The fan impeller directly transports the preheated air in the air inlet chamber to the air knife to directly heat the glass surface. This direct heating method reduces the heat loss during the heat transfer process, optimizes the temperature distribution of the hot air, and further improves the uniformity and efficiency of the film melting.

[0015] 4. Reduce energy consumption: The optimized heating process reduces the mixing of cold air introduced by the fan and the heating air, thereby significantly reducing heat loss. This improvement not only improves the energy utilization efficiency but also reduces the energy consumption of the entire heating process, achieving the optimization of cost-effectiveness.

[0016] 5. Shorten the production cycle: Thanks to the synergistic effect of the hot air blowing and sweeping component and the innovative heating process, the heating air can quickly reach the set temperature, significantly shortening the melting time of the film. This improvement speeds up the production rhythm and improves the overall efficiency of the production line.

[0017] In summary, the preheating heat exchange system for the heating section of the roller press not only solves the problems of low thermal efficiency and high energy consumption in the existing technology through technological innovation but also significantly improves the quality and efficiency of laminated glass production, showing its broad prospects in industrial applications. Description of the Drawings

[0018] Figure 1 This is the front view structural schematic diagram of the pre - heat exchange system in the heating section of the roller press described in the present utility model.

[0019] Figure 2 This is the side view structural schematic diagram of the pre - heat exchange system in the heating section of the roller press described in the present utility model.

[0020] Figure 3 This is the top view structural schematic diagram of the pre - heat exchange system in the heating section of the roller press described in the present utility model.

[0021] Figure 4 This is the axonometric structural schematic diagram of the hot air blowing and sweeping assembly described in the present utility model.

[0022] Figure 5 For the present utility model Figure 4 the front view sectional structural schematic diagram.

[0023] Figure 6 For the present utility model Figure 4 the side view structural schematic diagram.

[0024] In the figure: 1. Roller press; 2. Heating bin; 3. Conveying mechanism; 4. Hot air blowing and sweeping assembly; 401. Fan; 402. Air inlet bin; 403. Heater; 404. Y - shaped air distribution channel; 405. Air knife; 406. Air injection hole; 4021. Air bin flange; 4022. Support plate. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0026] Embodiment: In combination with the attached drawings of the specification Figures 1-6It can be seen that the present application specifically designs a pre - heating heat - exchange system for the heating section of a roll press 1, including a heating bin 2 arranged at the feeding end of the roll press 1. A conveying mechanism 3 is arranged in the heating bin 2. Hot - air blowing and sweeping assemblies 4 are symmetrically arranged on the upper and lower sides of the conveying mechanism 3. Adjacent hot - air blowing and sweeping assemblies 4 at the same level are arranged alternately along the front and rear side walls of the heating bin 2. The hot - air blowing and sweeping assembly 4 includes a fan 401, an air inlet bin 402, a heater 403, a Y - shaped air - distributing channel 404, and an air knife 405. The fan 401 is assembled and connected to the side wall of the heating bin 2. The air inlet bin 402 is installed at the air inlet end of the fan 401. The heater 403 is installed in the heating bin 2. The Y - shaped air - distributing channel 404 is arranged at the air outlet end of the fan 401. The air knife 405 is installed at the outlet end of the Y - shaped air - distributing channel 404. The above - mentioned air knife 405 is a long and narrow pipe groove with a wide upper part and a narrow lower part formed by welding stainless - steel plates. The lower end of the long and narrow pipe groove is a strip - shaped opening, and injection holes 406 are opened in the lower part of the side wall of the pipe groove. The air inlet bin 402 is assembled and connected to the air inlet end of the fan 401 through an air - bin flange 4021. The fan 401 and the heating bin 2 are assembled and fixed through a support plate 4022 and bolt connectors. The air - storage bin of the fan is made of stainless - steel material and is made into a sealed structure through bending and welding processes to ensure strength and airtightness. The air - storage bin of the fan integrates a fan impeller. A heater 403 is installed in the air inlet bin 402 for efficiently extracting and conveying air. The heater 403 is fixed on the air inlet bin 402 through special nuts to ensure stable installation and maximize the heat efficiency. The air knife 405 is made of stainless - steel plates and is manufactured by welding technology to ensure the firmness and durability of the structure. The air outlet is designed to be long and narrow to enhance the cutting effect on the air flow, increase the wind speed, and optimize the uniformity of the air flow. A heater 403 is installed in the air inlet bin 401 to heat the air. The fan impeller ensures efficient driving of the heated air and directly blows it onto the glass surface through the air knife 405. An accurate control system is implemented to adjust the rotation speed of the fan impeller and the power of the electric heating element, accurately control the hot - air temperature and wind speed reaching the glass surface, use a temperature sensor to monitor the temperature of the glass surface in real - time, and feedback the data to the control system to achieve closed - loop control of the heating process. Start the fan 401, so that the air in the air inlet bin 402 is extracted and heated by the heater 403, and then evenly blown onto the glass surface at high speed through the air knife 405. Utilize the high - speed hot air generated by the hot - air blowing and sweeping assembly 4 to quickly and evenly melt the PVB film to complete the bonding of two pieces of glass.

[0027] Through the above - mentioned specific implementation manner, the heating efficiency in the production process of laminated glass is significantly improved, ensuring the uniformity of film melting, thereby enhancing product quality and production economy.

[0028] The pre - heating heat - exchange system in the heating section of the roll press can effectively enhance the thermal - energy conversion efficiency: By introducing an advanced hot - air blowing and sweeping component 4, which replaces the traditional round - tube air - duct design, the air - flow speed is significantly increased. This design optimizes the kinetic characteristics of hot air, ensuring that thermal energy is transferred to the glass surface more quickly and efficiently, thus achieving a significant improvement in thermal - energy conversion efficiency; The heating uniformity is improved: The innovative design of the hot - air blowing and sweeping component 4 promotes the uniform distribution of hot air on the glass surface, effectively avoiding local overheating or underheating caused by uneven air - flow speed or insufficient air volume. This uniform heating ensures the consistent melting of the PVB film across the entire glass surface, thereby improving the quality and performance of the laminated - glass product; This system subverts the traditional heating process. The air - blower impeller directly transports the pre - heated air in the air - storage bin to the air knife 405 to directly heat the glass surface. This direct - heating method reduces the heat loss during the transfer process, optimizes the temperature distribution of the hot air, and further improves the uniformity and efficiency of film melting; The optimized heating process reduces the mixing of cold air introduced by the air - blower 401 and the heating air, thus significantly reducing heat loss. This improvement not only enhances the energy - utilization efficiency but also reduces the energy consumption during the entire heating process, achieving an optimization of cost - effectiveness; Thanks to the synergistic effect of the hot - air blowing and sweeping component 4 and the innovative heating process, the heating air can quickly reach the set temperature, significantly shortening the melting time of the film. This improvement speeds up the production rhythm and improves the overall efficiency of the production line.

[0029] In summary, through technological innovation, the pre - heating heat - exchange system in the heating section of the roll press not only solves the problems of low thermal efficiency and high energy consumption in the existing technology but also significantly improves the quality and efficiency of laminated - glass production, demonstrating its broad prospects in industrial applications.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Preheating heat exchange system for the heating section of a roll press, including a heating bin arranged at the feeding end of the roll press, characterized in that, A conveying mechanism is arranged in the heating bin, and hot air blowing and sweeping components are symmetrically arranged on the upper and lower sides of the conveying mechanism. The adjacent hot air blowing and sweeping components at the same level are arranged alternately along the front and rear side walls of the heating bin; The hot air blowing and sweeping component includes a fan, an air inlet bin, a heater, a Y-shaped air distribution channel and an air knife. The fan is assembled and connected to the side wall of the heating bin, the air inlet bin is installed at the air inlet end of the fan, the heater is installed in the heating bin, the Y-shaped air distribution channel is arranged at the air outlet end of the fan, and the air knife is installed at the outlet end of the Y-shaped air distribution channel.

2. The pre - heat exchange system with the heating section of the roll press according to claim 1, characterized in that, The air knife is a long and narrow pipe groove with a wide upper part and a narrow lower part formed by welding stainless steel plates. The lower end of the long and narrow pipe groove is a strip-shaped opening, and air injection holes are arranged in the lower part of the side wall of the pipe groove.

3. The preheating heat exchange system for the heating section of the roll press according to claim 1, wherein The air inlet bin is assembled and connected to the air inlet end of the fan through an air bin flange.

4. The preheating heat exchange system of the heating section of the roll press according to claim 1, characterized in that, The fan and the heating bin are assembled and fixed through a support plate and bolt connectors with the heating bin.

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