Annealing lehr cooling device

Abstract

The utility model relates to glass preparation production technical field discloses an annealing lehr cooling device, the utility model provides an annealing lehr cooling device, include: fan platform, fan and mixed air structure, the fan is installed on the fan platform, and the air outlet end of fan is suitable for facing the glass to be cooled, the mixed air structure includes the three -way valve, the three -way valve includes first air inlet, second air inlet and air outlet, and the air outlet is connected with the air inlet end of fan, and the first air inlet is used for leading into outdoor wind, and the second air inlet is used for leading into indoor wind. When the glass needs to be cooled, the three -way valve is started, and the indoor air and outdoor air are sucked at the same time, the three -way valve is used to realize the mixing of indoor air and outdoor air, to ensure that the glass is cooled and cut in the best temperature range, to avoid the problems such as softening, embrittlement, burst of glass caused by too high or too low temperature, improve the production quality and production efficiency of glass.

Description

Technical Field

[0001] This utility model relates to the field of glass preparation and production technology, specifically to an annealing furnace cooling device. Background Technology

[0002] In the precision process of glass production, the annealing furnace is a crucial link in glass forming, and its stable operation plays a decisive role in the quality of the glass.

[0003] For a long time, annealing furnace ventilation systems have relied on indoor air to cool the glass. Especially in summer, the temperature generated by the glass surface and the high temperatures of summer lead to excessively high indoor temperatures. At this time, although the ventilation system is running at full capacity, its cooling effect is greatly reduced because it is drawing in hot indoor air.

[0004] Currently, while some solutions attempt to overcome this limitation by using ducts to connect to the silencers of indoor fans to draw in outdoor air and thus cool the glass panels, this approach has significant limitations. It can only selectively draw in either outdoor or indoor air, failing to achieve a mixed intake of both. If indoor air is drawn in, excessively high temperatures may cause the glass to soften, making cutting difficult; if outdoor air is drawn in, excessively low temperatures may cause cracks during cutting. This inadequate cooling severely impacts glass quality and production efficiency. Utility Model Content

[0005] In view of this, the present invention provides a cooling device for an annealing furnace to solve the problem that related solutions can only select to draw in outdoor or indoor air, and cannot achieve mixed intake of outdoor and indoor air. If indoor air is drawn in, the glass may soften and become difficult to cut if the temperature is too high; if outdoor air is drawn in, cracks are easily generated during cutting if the temperature is too low. The unsatisfactory cooling seriously affects the quality of glass and production efficiency.

[0006] In a first aspect, this utility model provides an annealing furnace cooling device, comprising: Wind turbine platform; A fan, the fan being mounted on the fan platform, the fan's outlet being adapted to face the glass to be cooled; The air mixing structure includes a three-way valve, which includes a first air inlet, a second air inlet, and an air outlet. The air outlet is connected to the air inlet of the fan. The first air inlet is used to introduce outdoor air, and the second air inlet is used to introduce indoor air.

[0007] Beneficial effects: This device uses a three-way valve to start the fan when cooling of the glass is required, simultaneously drawing in indoor and outdoor air. The three-way valve mixes the indoor and outdoor air, ensuring that the glass is cooled and cut within the optimal temperature range. This avoids problems such as softening, brittleness, and cracking of the glass due to excessively high or low temperatures, thereby improving the production quality and efficiency of the glass.

[0008] In one optional embodiment, the air mixing structure further includes: The first valve plate is installed on the side wall of the first air inlet; The second valve plate is mounted on the other side wall of the first air inlet, opposite to the first valve plate. Both the first valve plate and the second valve plate are rotatably connected to the three-way valve via a rotating shaft.

[0009] In one alternative embodiment, the shaft corresponding to the second valve plate is installed between the first air inlet and the second air inlet.

[0010] In one optional embodiment, the air mixing structure further includes a third valve plate, which is rotatably mounted inside the second air inlet via a rotating shaft.

[0011] Beneficial effects: The first valve plate controls the airflow at the first air inlet. When the first valve plate rotates counter-clockwise, it increases the opening area of ​​the first air inlet, thus increasing the airflow. When it rotates clockwise, it decreases the opening area and airflow. The third valve plate controls the airflow at the second air inlet. When the third valve plate flips upwards, it increases the opening area and airflow at the second air inlet. When it flips downwards, it decreases the opening area and airflow. The second valve plate simultaneously controls the airflow at both the first and second air inlets. When the second valve plate rotates clockwise towards the second air inlet, its opening area decreases while the opening area of ​​the first air inlet increases, thus decreasing the airflow at the second air inlet and increasing the airflow at the first air inlet. When the second valve plate rotates counterclockwise toward the direction closer to the first air inlet, the opening area of ​​the second air inlet increases and the opening area of ​​the first air inlet decreases, thereby increasing the air intake of the second air inlet and decreasing the air intake of the first air inlet.

[0012] Operators adjust the opening of the first, second, and third valve plates according to the indoor and outdoor temperatures and glass processing requirements, thereby controlling the opening area ratio of the first and second air inlets to control the intake of outdoor and indoor air, ultimately obtaining a mixed air with the required temperature and humidity.

[0013] In one alternative embodiment, the mixing structure further includes a chuck mounted on the three-way valve and connected to the rotating shaft, the chuck being used to limit the rotation angle of the rotating shaft.

[0014] In one alternative implementation, the chuck includes: An annular limiting disc is mounted on the outer surface of the three-way valve corresponding to the rotating shaft, and a plurality of first limiting holes are spaced apart on the annular limiting disc. A limiting member, one end of which is mounted on the rotating shaft, and the other end of which has a second limiting hole; In this configuration, a spring-loaded locating pin is inserted into the first limiting hole and the second limiting hole to limit the rotation angle of the rotating shaft.

[0015] Beneficial effects: This chuck provides precise and reliable angular positioning for the rotation of the valve plates through a purely mechanical means. By equipping the shafts of the first, second, and third valve plates with a chuck, operators can independently set the maximum, minimum, or any desired fixed opening for the first and second air inlets, thereby achieving stable control of the mixing ratio and ensuring the continuity and stability of production.

[0016] In one alternative embodiment, the air mixing structure further includes a silencer pipe, which is mounted on the first air inlet via a flange.

[0017] Beneficial effects: Indoor air first passes through a silencer pipe before entering the second air inlet. The silencer pipe is filled with sound-absorbing material, which absorbs low- and mid-frequency noise in the airflow, reducing the noise level of the entire system and improving the working environment.

[0018] In one optional embodiment, the annealing kiln cooling device further includes an outlet pipe, one end of which is installed on the second air inlet via a flange, and the other end of which passes through the wall and extends to the outside.

[0019] Beneficial effects: The exhaust pipe runs directly through the factory wall and extends to the outside. The exhaust pipe ensures that the outdoor air inlet is far away from the high-temperature area, so as to ensure that the air drawn is actually the cooler outdoor air, and avoids the intake of heated air near the wall, thus ensuring the stability of the mixed air cooling effect.

[0020] In one alternative embodiment, a temperature sensor is also provided at the air outlet of the fan.

[0021] Beneficial effects: This sensor is used to monitor the actual temperature of the final mixed air in real time. Based on the measured temperature, the first, second, and third valve plates can be readjusted to ensure that the actual air temperature is at the set value. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of an annealing kiln cooling device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the three-way valve from one angle according to an embodiment of the present invention; Figure 3 This is a structural schematic diagram of the three-way valve from another angle according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the chuck structure according to an embodiment of the present utility model; Explanation of reference numerals in the attached figures: 1. Wind turbine platform; 2. Fan; 3. Mixing structure; 31. Three-way valve; 311. First air inlet; 312. Second air inlet; 313. Air outlet; 32. First valve plate; 33. Second valve plate; 34. Third valve plate; 35. Chuck; 351. Annular limiting plate; 352. First limiting hole; 353. Limiting component; 354. Second limiting hole; 36. Silencing pipe; 37. Out-of-wall pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the precision process of glass production, the annealing furnace is a crucial link in glass forming, and its stable operation plays a decisive role in the quality of the glass.

[0026] For a long time, annealing furnace ventilation systems have relied on indoor air to cool the glass. Especially in summer, the temperature generated by the glass surface and the high temperatures of summer lead to excessively high indoor temperatures. At this time, although the ventilation system is running at full capacity, its cooling effect is greatly reduced because it is drawing in hot indoor air.

[0027] Current solutions attempt to overcome this limitation by using a duct to connect the silencer of the indoor fan 2 to draw in outdoor air to cool the glass panel. However, this solution has significant limitations—it can only selectively draw in either outdoor or indoor air, and cannot achieve a mixed intake of both. If indoor air is drawn in, the glass may soften and become difficult to cut if the temperature is too high; if outdoor air is drawn in, cracks are likely to occur during cutting if the temperature is too low. This inadequate cooling significantly impacts glass quality and production efficiency.

[0028] To solve the above technical problems, the following will be combined with... Figures 1 to 4 The following describes embodiments of the present invention.

[0029] According to an embodiment of the present invention, an annealing kiln cooling device is provided, comprising: a fan platform 1, a fan 2, and a mixing structure 3.

[0030] like Figures 1 to 4 As shown, the fan platform 1 is a structural platform used to install and support the entire cooling system. The fan 2 is installed on the fan platform 1, and the air outlet of the fan 2 is adapted to face the glass to be cooled to provide cooling airflow. The air inlet of the fan 2 is equipped with a mixing structure 3. The mixing structure 3 includes a three-way valve 31, which has a first air inlet 311, a second air inlet 312, and an air outlet 313. The first air inlet 311 is used to introduce outdoor air, and the second air inlet 312 is used to introduce indoor air. The indoor air and outdoor air are mixed in the three-way valve 31 and then sent to the fan 2 through the air outlet 313.

[0031] The device uses a three-way valve 31 to start the fan 2 when cooling of the glass is required. It simultaneously draws in indoor and outdoor air and uses the three-way valve 31 to mix the indoor and outdoor air, ensuring that the glass is cooled and cut within the optimal temperature range. This avoids problems such as softening, embrittlement, and cracking of the glass due to excessively high or low temperatures, thereby improving the production quality and efficiency of the glass.

[0032] In one embodiment, such as Figure 2 and Figure 3 As shown, the first air inlet 311 is equipped with a split valve plate assembly, which includes a first valve plate 32 and a second valve plate 33. Both the first valve plate 32 and the second valve plate 33 are rectangular and are mounted opposite each other on both sides inside the first air inlet 311. The first valve plate 32 and the second valve plate 33 are rotatably connected to the three-way valve 31 via a rotating shaft. Specifically, as shown... Figure 2As shown, the side of the first valve plate 32 away from the second valve plate 33 is rotatably mounted on the three-way valve 31 via a rotating shaft. The rotating shaft corresponding to the first valve plate 32 is installed inside the side of the first air inlet 311 away from the second air inlet 312. The rotating shaft corresponding to the first valve plate 32 is vertically installed, and its two ends are rotatably connected to the three-way valve 31. The side of the second valve plate 33 away from the first valve plate 32 is rotatably mounted on the three-way valve 31 via a rotating shaft. The rotating shaft on the second valve plate 33 is installed inside the three-way valve 31, and this rotating shaft is installed at the junction of the first air inlet 311 and the second air inlet 312. The rotating shaft corresponding to the second valve plate 33 is also vertically installed, and its two ends are rotatably connected to the three-way valve 31. The first valve plate 32 and the second valve plate 33 can rotate around their respective rotating shafts as the center of rotation, working together like two double doors to adjust the ventilation aperture of the first air inlet 311. Among them, the rotating shafts corresponding to the first valve plate 32, the second valve plate 33 and the third valve plate 34 all extend to the outside of the three-way valve 31 for operator operation.

[0033] A third valve plate 34 is also installed at the second air inlet 312. The upper side wall of the third valve plate 34 is fixed to the upper inside of the second air inlet 312 by a pivot, and is used to control the rate of airflow into the room. The pivot corresponding to the third valve plate 34 is placed horizontally.

[0034] like Figure 2 As shown, when both the first valve plate 32 and the second valve plate 33 are attached to the first air inlet 311, the first air inlet 311 is sealed. Figure 2 From a top-down perspective, when it is necessary to introduce outdoor air, the operator drives the rotating shafts on the first valve plate 32 and the second valve plate 33 to rotate, thereby causing the first valve plate 32 to rotate counterclockwise and the second valve plate 33 to rotate clockwise, thereby opening the first air inlet 311 and introducing outdoor air.

[0035] In another scenario, when both the second valve plate 33 and the third valve plate 34 are attached to the second air inlet 312, the second air inlet 312 is sealed. When indoor air needs to be introduced, the operator drives the shafts on the second valve plate 33 and the third valve plate 34 to rotate, thereby causing the second valve plate 33 to rotate counterclockwise and the third valve plate 34 to flip upward, thus opening the second air inlet 312 and introducing indoor air.

[0036] In summary, the first valve plate 32 can control the air intake volume of the first air inlet 311. When the first valve plate 32 rotates counterclockwise, it increases the opening area of ​​the first air inlet 311 and increases the air intake volume of the first air inlet 311. When it rotates clockwise, it decreases the opening area of ​​the first air inlet 311 and decreases the air intake volume of the first air inlet 311. The third valve plate 34 can control the air intake volume of the second air inlet 312. When the third valve plate 34 flips upward, it increases the opening area of ​​the second air inlet 312 and increases the air intake volume of the second air inlet 312. When the third valve plate 34 flips downward, it decreases the opening area of ​​the second air inlet 312 and decreases the air intake volume of the second air inlet 312. The second valve plate 33 can simultaneously control the air intake of the first air inlet 311 and the second air inlet 312. When the second valve plate 33 rotates clockwise toward the direction closer to the second air inlet 312, the opening area of ​​the second air inlet 312 decreases, and the opening area of ​​the first air inlet 311 increases, thereby reducing the air intake of the second air inlet 312 and increasing the air intake of the first air inlet 311. When the second valve plate 33 rotates counterclockwise toward the direction closer to the first air inlet 311, the opening area of ​​the second air inlet 312 increases, and the opening area of ​​the first air inlet 311 decreases, thereby increasing the air intake of the second air inlet 312 and decreasing the air intake of the first air inlet 311.

[0037] According to the indoor and outdoor temperatures and glass processing requirements, the operator adjusts the opening of the first valve plate 32, the second valve plate 33 and the third valve plate 34 respectively, thereby controlling the opening area ratio of the first air inlet 311 and the second air inlet 312, so as to control the intake of outdoor air and indoor air, and finally obtain a mixed air with the required temperature and humidity.

[0038] Furthermore, by setting the third valve plate 34 to rotate up and down, its impact on the air outlet 313 is reduced.

[0039] The above settings ensure precise control of the mixing air ratio and temperature, directly improving the quality and yield of glass products.

[0040] In one embodiment, such as Figure 4 As shown, the mixing structure 3 also includes a chuck 35, which is mounted on the three-way valve 31 and connected to the rotating shaft. The chuck 35 is used to limit the rotation angle of the rotating shaft. Each valve plate corresponds to one chuck 35, that is, the first valve plate 32 corresponds to one first chuck 35, the second valve plate 33 corresponds to one second chuck 35, and the third valve plate 34 corresponds to one third chuck 35.

[0041] Taking one example to illustrate its specific structure, the chuck 35 includes: an annular limiting disc 351 and a limiting member 353. The annular limiting disc 351 is an annular disc body with scales or markings, fixedly installed on the outer surface of the three-way valve 31, with its center aligned with the axis of rotation of the corresponding valve plate. Along its circumference, a plurality of first limiting holes 352 are spaced apart, each first limiting hole 352 representing a different angular position of the corresponding valve plate. The limiting member 353 is a connector, one end of which is fixedly installed on the corresponding valve plate axis and rotates with the axis; the other end has a second limiting hole 354.

[0042] When the valve plate rotates to the preset angle, the second limiting hole 354 on the limiting member 353 and one of the first limiting holes 352 on the annular limiting plate 351 are aligned. The spring positioning pin is then inserted into the second limiting hole 354 on the limiting member 353 and one of the first limiting holes 352 on the annular limiting plate 351 at the same time, thereby achieving mechanical locking.

[0043] When the valve plate needs to be readjusted, the operator pulls the handle of the spring positioning pin upwards, compressing the spring and causing the pin to retract from its current position. At this point, the corresponding valve plate shaft can rotate freely. The operator then rotates the valve plate to the appropriate angle using the drive mechanism or manually. When the valve plate reaches the target position, the second limiting hole 354 on the limiting member 353 aligns with the corresponding target first limiting hole 352 on the annular limiting disc 351. Releasing the handle causes the spring force to push the positioning pin down automatically, inserting it into the aligned hole and securely locking the shaft at that angle. This achieves the readjustment of the valve plate.

[0044] The chuck 35 provides precise and reliable angular positioning for the rotation of the valve plates through a purely mechanical means. By equipping the rotating shafts of the first valve plate 32, the second valve plate 33, and the third valve plate 34 with a chuck 35, the operator can independently set the maximum, minimum, or any desired fixed opening for the first air inlet 311 and the second air inlet 312, thereby achieving stable control of the mixing ratio and ensuring the continuity and stability of production.

[0045] In one embodiment, such as Figure 1 As shown, the air mixing structure 3 also includes a silencer pipe 36. The silencer pipe 36 is installed on the first air inlet 311 through a flange. The indoor air first passes through the silencer pipe 36 and then enters the second air inlet 312. The silencer pipe 36 is filled with sound-absorbing material. The low- and medium-frequency noise in the airflow is absorbed by the silencer pipe 36, reducing the noise level of the entire system during operation and improving the working environment.

[0046] In one embodiment, such as Figure 1As shown, the annealing kiln cooling device also includes a wall outlet pipe 37. One end of the wall outlet pipe 37 is installed on the second air inlet 312 via a flange, and the other end of the wall outlet pipe 37 penetrates the wall and extends to the outside. The wall outlet pipe 37 directly penetrates the factory wall and extends to the outside, ensuring that the outdoor air inlet is far away from the high-temperature area, ensuring that the drawn air is actually at a lower temperature, avoiding the intake of heated air near the wall, and ensuring the stability of the mixed air cooling effect.

[0047] In one embodiment, a temperature sensor is also provided at the air outlet of the fan 2. This sensor is used to monitor the actual temperature of the final mixed air in real time, and the first valve plate 32, the second valve plate 33, and the third valve plate 34 can be readjusted based on the measured temperature to ensure that the actual air temperature is at the set value.

[0048] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An annealing lehr cooling apparatus characterized by, include: Wind turbine platform (1); A fan (2) is installed on the fan platform (1), and the air outlet of the fan (2) is adapted to face the glass to be cooled. The air mixing structure (3) includes a three-way valve (31), which includes a first air inlet (311), a second air inlet (312), and an air outlet (313). The air outlet (313) is connected to the air inlet of the fan (2). The first air inlet (311) is used to introduce outdoor air, and the second air inlet (312) is used to introduce indoor air.

2. The anneal kiln cooling apparatus of claim 1, wherein, The air mixing structure (3) also includes: The first valve plate (32) is installed on the side wall of the first air inlet (311); The second valve plate (33) is mounted on the other side wall of the first air inlet (311) opposite to the first valve plate (32); The first valve plate (32) and the second valve plate (33) are rotatably connected to the three-way valve (31) via a rotating shaft.

3. The anneal kiln cooling apparatus of claim 2, wherein, The shaft corresponding to the second valve plate (33) is installed between the first air inlet (311) and the second air inlet (312).

4. The anneal kiln cooling apparatus of claim 2, wherein, The air mixing structure (3) further includes a third valve plate (34), which is rotatably installed in the second air inlet (312) via a rotating shaft.

5. The anneal kiln cooling apparatus of claim 4, wherein, The mixing structure (3) also includes a chuck (35), which is mounted on the three-way valve (31) and connected to the rotating shaft. The chuck (35) is used to limit the rotation angle of the rotating shaft.

6. The annealing furnace cooling device according to claim 5, characterized in that, The chuck (35) includes: An annular limiting plate (351) is installed on the outer surface of the three-way valve (31) corresponding to the rotating shaft. A plurality of first limiting holes (352) are provided on the annular limiting plate (351) at intervals. A limiting member (353) is provided, one end of which is mounted on the rotating shaft, and the other end of which is provided with a second limiting hole (354). The rotation angle of the shaft is limited by inserting a spring positioning pin into the first limiting hole (352) and the second limiting hole (354).

7. The anneal kiln cooling apparatus of claim 4, wherein, The air mixing structure (3) also includes a silencer pipe (36), which is installed on the first air inlet (311) via a flange.

8. The anneal kiln cooling apparatus of claim 5, wherein, The annealing kiln cooling device also includes a wall outlet pipe (37), one end of which is installed on the second air inlet (312) via a flange, and the other end of which passes through the wall and extends to the outside.

9. The anneal kiln cooling apparatus of claim 5, wherein, The air outlet of the fan (2) is also equipped with a temperature sensor.

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