Kiln pool wall brick heat dissipation regulating device

Abstract

The utility model discloses a kind of for kiln pool wall brick heat dissipation regulation and control device, belong to substrate glass production technical field.The device is by setting multiple water pipes in the longitudinal direction in the periphery of kiln pool wall brick, and cooperate the temperature monitoring of internal and external thermocouple, realized the accurate regulation and control to pool wall brick heat dissipation effect.Cooperative monitoring of internal thermocouple and external thermocouple, the temperature change of two sides inside and outside pool wall brick can be real-time feedback, provide reliable basis for the dynamic adjustment of cooling intensity, ensure that pool wall brick always keep in optimum working temperature range.Meanwhile, the water pipe structure of longitudinal arrangement can form uniform cooling effect along pool wall brick height direction, further improve the stability of temperature control.The device fundamentally improves the extensive nature of traditional cooling mode, significantly prolongs the service life of pool wall brick, provides reliable guarantee for long-term stable operation of kiln.The regulation and control method of the utility model is simple in operation, low in cost, with good practicality and economy.

Description

Technical Field

[0001] This utility model belongs to the field of substrate glass production technology, specifically relating to a heat dissipation control device for kiln pool wall bricks. Background Technology

[0002] As the core thermal equipment in glass production, the operational stability and service life of glass furnaces directly affect production efficiency and product quality. Within the furnace structure, the tank wall bricks are key refractory material components that directly contact the high-temperature molten glass, enduring the chemical erosion and mechanical scouring of the molten glass at 1400-1600℃ for extended periods. This harsh working environment makes the tank wall bricks one of the most vulnerable and easily damaged parts of the entire furnace, and their service life often determines the furnace's overhaul cycle.

[0003] Currently, the commonly used industrial cooling method, direct airflow cooling, involves installing a fan system on the outside of the kiln wall and using forced convection to blow air directly onto the outer surface of the wall for cooling. While this traditional cooling method can reduce the working temperature of the wall bricks to some extent, it has revealed several technical limitations in practical applications. First, the cooling effect of direct airflow is difficult to precisely control, resulting in uneven airflow distribution and the formation of temperature gradients on the wall surface. Insufficient cooling leads to excessively high wall brick temperatures, accelerating the erosion rate of the bricks by the molten glass; while excessive cooling causes excessive thermal stress within the bricks, leading to microcracks or even direct cracking. Second, the impact of the direct airflow can cause localized overcooling of the wall bricks, creating a steep temperature gradient between the hot and cold surfaces. This uneven distribution of thermal stress significantly reduces the thermal shock resistance of the refractory material.

[0004] More importantly, traditional air-cooling methods lack intelligent temperature feedback control systems, making it impossible to dynamically adjust the cooling intensity based on the actual temperature changes of the pool wall bricks. This crude cooling approach not only fails to effectively address the erosion problem of the pool wall bricks but may also cause new structural damage due to improper cooling. Furthermore, dust and other impurities in the direct airflow easily accumulate on the pool wall surface, affecting heat exchange efficiency and potentially clogging cooling ducts over long-term operation. These technical deficiencies make it difficult for traditional cooling methods to strike a balance between protecting the pool wall bricks and maintaining optimal operating temperature, impacting not only the kiln's thermal efficiency but also potentially increasing maintenance costs and the risk of production downtime due to premature damage to the pool wall bricks.

[0005] The erosion and cracking of the furnace wall bricks are essentially caused by a mismatch between the temperature field distribution and the thermodynamic properties of the material. An ideal cooling system should be able to establish a uniform and controllable temperature field, enabling the furnace wall bricks to maintain sufficient mechanical strength to resist the erosion of molten glass while controlling the surface temperature within the optimal operating range to slow down the erosion rate. However, traditional air-cooled direct-blowing technology lacks precise temperature field control methods and cannot achieve this technical goal, which has become one of the main technical bottlenecks restricting the long-term operation of glass furnaces. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned problems and provide a heat dissipation control device and control method for kiln pool wall bricks, so as to achieve uniform heat dissipation of kiln pool wall bricks, effectively reduce cracking and abnormal erosion of pool wall bricks, and extend the service life of the kiln.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a heat dissipation control device for kiln pool wall bricks, including pool wall bricks that divide the kiln into an internal area and an external area. The internal area is equipped with an internal thermocouple, the external area is equipped with an external thermocouple, and the external area is equipped with several longitudinally arranged water pipes.

[0008] A further improvement of this invention is that the internal thermocouple is located at the bottom of the internal area of ​​the kiln.

[0009] A further improvement of this invention is that the external thermocouple is located between the pool wall bricks and the water pipes and on the side closer to the pool wall bricks.

[0010] A further improvement of this invention is that the water pipe is located in the external area.

[0011] A further improvement of this invention is that the distance between the water pipe and the pool wall bricks is 50~150mm.

[0012] A further improvement of this invention is that the number of water pipes is ≥2.

[0013] A further improvement of this invention is that the diameter of the water pipe is 10~50mm.

[0014] A further improvement of this invention is that the spacing between adjacent water pipes is 5~20mm.

[0015] A further improvement of this utility model is that the water pipes and pool wall bricks are distributed in a parallel or staggered arrangement.

[0016] A further improvement of this utility model is that the water pipe adopts an independent water supply method with bottom inlet and top outlet.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a heat dissipation control device for kiln pool wall bricks. This device achieves precise control of the heat dissipation effect of the pool wall bricks by longitudinally arranging multiple water pipes around the perimeter of the kiln pool wall bricks and coordinating with internal and external thermocouples for temperature monitoring. Compared to traditional direct air cooling, the water cooling system removes heat through circulating cooling water, enabling more uniform and stable control of the temperature distribution of the pool wall bricks and avoiding the localized overheating or overcooling problems caused by uneven airflow in air cooling. The coordinated monitoring by internal and external thermocouples provides real-time feedback on temperature changes on both the inner and outer sides of the pool wall bricks, providing a reliable basis for dynamic adjustment of cooling intensity and ensuring that the pool wall bricks are always kept within the optimal operating temperature range. This proactive cooling method effectively reduces the thermal stress caused by temperature fluctuations in the pool wall bricks, preventing excessively high temperatures from exacerbating glass melt erosion and avoiding the risk of cracking due to overcooling. Simultaneously, the longitudinally arranged water pipe structure creates a uniform cooling effect along the height of the pool wall bricks, further improving the stability of temperature control. This device fundamentally improves upon the inefficient nature of traditional cooling methods, significantly extends the service life of the pool wall bricks, and provides a reliable guarantee for the long-term stable operation of the kiln.

[0018] Furthermore, the water pipes are installed in the external area, with a distance of 50-150mm from the pool wall bricks. This distance range allows the heat dissipation effect of the water pipes to achieve the best balance with the heat load of the pool wall bricks. If the distance is less than 50mm, it will lead to local overcooling, which can easily cause thermal shock cracks in the pool wall bricks. If the distance is greater than 150mm, the heat dissipation will be insufficient, and the temperature of the pool wall bricks cannot be effectively controlled.

[0019] Furthermore, the number of water pipes is greater than or equal to two, which not only ensures redundancy for basic heat dissipation needs but also provides the possibility of flexible adjustment. When a water pipe needs maintenance or experiences abnormal flow, the other water pipes can still maintain basic cooling functions. This redundancy design significantly improves system reliability.

[0020] Furthermore, the diameter of the water pipes is 10-50mm, which ensures sufficient cooling water flow per unit time while avoiding the decrease in water flow velocity and heat exchange efficiency caused by excessively large pipe diameters. This diameter range, combined with a spacing of 5-20mm, works synergistically to achieve an optimal balance in heat exchange between the cooling water and the pool wall bricks, preventing localized overcooling due to excessively small spacing and ensuring efficient heat dissipation due to excessively large spacing.

[0021] Furthermore, the water pipes and pool wall bricks can be distributed in parallel or in multiple staggered rows. Parallel distribution facilitates the standardized layout and maintenance of the piping system, while multiple staggered rows can generate a more uniform temperature field distribution. The two methods can be flexibly selected according to the heat dissipation requirements of different parts of the kiln.

[0022] Furthermore, the water pipes adopt an independent water supply method with the inlet at the bottom and the outlet at the top. The inlet being located at the bottom ensures that the pipeline system is always filled with cooling water, avoiding cavitation. The design of independent water supply for each pipe allows for precise flow adjustment based on temperature differences in different sections of the pool wall bricks. This control method has higher control accuracy and response speed compared to series water supply. Attached Figure Description

[0023] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the present invention and do not specifically limit the shapes and proportions of the components of the present invention.

[0024] Figure 1 This is a front view of the heat dissipation control device for kiln pool wall bricks according to this utility model. Figure 2 This is a top view of the kiln pool wall brick heat dissipation control device of this utility model.

[0025] The components are: 1. Pool wall bricks; 2. Internal area; 3. External area; 4. Water pipes; 5. External thermocouples; 6. Internal thermocouples. Detailed Implementation

[0026] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings: like Figure 1 and Figure 2 As shown, this utility model provides a heat dissipation control device for furnace pool wall bricks, including pool wall bricks 1, which divide the furnace into an internal region 2 and an external region 3. The internal region 2 is equipped with an internal thermocouple 6, which is located at the bottom of the internal region 2 and is used to display the temperature of the glass melt inside the furnace. The external region 3 is equipped with an external thermocouple 5, which is located between the pool wall bricks 1 and water pipes 4 and closer to the side of the pool wall bricks 1, and is used to display the temperature on the outside of the pool wall bricks 1. The external region 3 is equipped with several longitudinally arranged water pipes 4.

[0033] As a preferred option, the water pipe 4 is installed in the external area 3, and the distance between it and the pool wall brick 1 is 50~150mm. This distance range allows the heat dissipation effect of the water pipe 4 to achieve the best balance with the heat load of the pool wall brick 1. If the distance is less than 50mm, it will lead to local overcooling, which may easily cause thermal shock cracks in the pool wall brick 1. If the distance is greater than 150mm, the heat dissipation will be insufficient and the temperature of the pool wall brick 1 cannot be effectively controlled.

[0034] As a preferred option, the number of water pipes 4 is greater than or equal to two. This ensures redundancy for basic heat dissipation requirements and provides the possibility of flexible adjustment. When one water pipe 4 needs maintenance or experiences abnormal flow, the other water pipes 4 can still maintain basic cooling functions. This redundancy design significantly improves system reliability. The spacing between adjacent water pipes 4 is set to 5~20mm, which can form a continuous and uniform temperature control zone on the outer surface of the pool wall brick 1, effectively avoiding the problem of uneven heat dissipation caused by a single water pipe 4.

[0035] As a preferred option, the diameter of the water pipe 4 is 10~50mm, which ensures sufficient cooling water flow per unit time while avoiding the decrease in water flow velocity and heat exchange efficiency caused by excessively large pipe diameter. This diameter range, combined with a spacing of 5~20mm, works synergistically to achieve an optimal balance in heat exchange between the cooling water and the pool wall bricks 1, preventing localized overcooling due to excessively small spacing and ensuring efficient heat dissipation due to excessively large spacing.

[0036] As a preferred option, the water pipes 4 and the pool wall bricks 1 are distributed in parallel or in multiple staggered rows. Parallel distribution facilitates the standardized layout and maintenance of the piping system, while multi-row staggered distribution can generate a more uniform temperature field distribution. The two methods can be flexibly selected according to the heat dissipation requirements of different parts of the kiln. In particular, when staggered, the cooling areas generated by adjacent water pipes 4 can form complementary coverage, eliminating the temperature "blind spots" that may exist in parallel distribution.

[0037] As a preferred option, water pipe 4 adopts an independent water supply method with bottom inlet and top outlet. The water inlet is located at the bottom to ensure that the pipeline system is always full of cooling water and avoid cavitation. The design of independent water supply for each water pipe 4 allows for precise flow adjustment based on the temperature differences of different sections of the pool wall bricks 1. This control method has higher control accuracy and response speed compared to series water supply.

[0038] The present invention provides a method for regulating the heat dissipation of a kiln pool wall brick heat dissipation regulating device, comprising the following steps: Step 1: Measure the temperature of the molten glass using the internal thermocouple 6 and measure the temperature of the outer side of the pool wall brick 1 using the external thermocouple 5. Step 2: Calculate the optimal temperature on the outside based on the thermal shock resistance of pool wall brick 1; Step 3: Adjust the number of water pipes 4 and the water flow rate so that the temperature on the outside of the pool wall bricks 1 measured by the external thermocouple 5 reaches the optimal temperature.

[0039] In some specific implementations, when the temperature on the outer side of the pool wall brick 1 deviates from the optimal temperature, the control system prioritizes adjusting the water flow rate for fine-tuning the temperature. Under high-temperature conditions, multiple rows of staggered water pipes 4 can be activated to maintain temperature stability by increasing the heat dissipation area. Under low-temperature conditions, it switches to a single-row parallel distribution mode to reduce cooling intensity. For sudden temperature fluctuations, the system can simultaneously adjust the flow distribution of multiple water pipes 4 to achieve rapid temperature compensation.

[0040] Specifically, this method achieves dynamic optimization by establishing a closed-loop control system of temperature monitoring, calculation and analysis, and execution adjustment. Internal thermocouple 6 continuously collects glass melt temperature data, reflecting the heat source input status; external thermocouple 5 monitors the surface temperature of the pool wall bricks 1 in real time, characterizing the heat dissipation system efficiency. These two temperature parameters constitute a complete temperature field data chain, providing an input benchmark for subsequent calculations. In the calculation stage, a thermal stress model is established based on the thermal shock resistance parameters of the pool wall bricks 1 material, and numerical simulation is used to determine the optimal temperature range that ensures structural strength while delaying erosion. The execution adjustment stage employs a hierarchical control strategy: first, coarse adjustment is achieved by increasing or decreasing the number of operating water pipes 4 to quickly change the overall heat dissipation capacity; then, fine adjustment is achieved by adjusting the flow rate of each water pipe 4 to precisely control the local heat dissipation intensity. This bivariate control mechanism ensures both the response speed of temperature regulation and improves control accuracy.

[0041] As a preferred solution, by adjusting the number of water pipes 4 and the water flow rate, the actual temperature of the outer side of the pool wall brick 1 is maintained above the optimal temperature value. The difference between the actual temperature and the optimal temperature constitutes the temperature margin. Retaining a certain temperature margin can resist the temperature impact on the pool wall brick 1 caused by abnormal kiln temperature.

[0042] The actual temperature refers to the temperature data of the outer side of the pool wall brick 1 measured in real time by an external thermocouple 5. Specifically, a contact temperature sensor can be used for periodic data acquisition. This parameter directly reflects the instantaneous heat dissipation effect of the cooling system. The optimal temperature refers to the theoretical safe temperature threshold calculated based on the thermal shock resistance of the pool wall brick 1 material. Specifically, it can be derived from a mathematical model of the material's thermal expansion coefficient and thermal conductivity. This parameter serves as a benchmark reference value for temperature control.

[0043] Specifically, when the external thermocouple 5 detects that the temperature on the outer side of the pool wall brick 1 is close to the optimal temperature, the cooling system reduces the heat dissipation intensity by decreasing the water flow or closing some water pipes 4, thus automatically maintaining the actual temperature above the optimal temperature. This temperature margin allows the cooling system to avoid frequent adjustments triggered by minor temperature fluctuations, while ensuring the safe lower limit of the pool wall brick 1's temperature. When the production process causes the glass melt temperature to rise, the difference between the actual temperature and the optimal temperature increases. At this time, the system expands the heat dissipation capacity by increasing the water flow or activating more water pipes 4, restoring the temperature margin to a reasonable range. This optimizes the frequency of cooling parameter adjustments while ensuring that the pool wall brick 1 remains within the temperature range allowed for thermal shock resistance.

[0044] Through the above technical solution, this application solves the system stability problem caused by excessive adjustment in traditional cooling methods, while preventing thermal stress damage to the tank wall bricks 1 caused by sudden temperature drops. The cooling system autonomously maintains heat dissipation balance within the temperature margin range, reducing the frequency of manual intervention and extending the service life of the equipment. The buffering effect of the temperature margin also improves the system's adaptability to sudden operating conditions, ensuring that the tank wall bricks 1 can maintain a stable thermodynamic state when the temperature of the molten glass fluctuates.

[0045] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of this teaching should not be determined by reference to the foregoing description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed utility model subject matter.

[0046] The above content provides a further detailed description of this utility model. It should not be considered that the specific embodiments of this utility model are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of this utility model, and all such deductions or substitutions should be considered to fall within the scope of protection of this utility model as defined by the submitted claims.

Claims

1. A heat dissipation control device for kiln pool wall bricks, characterized in that, The furnace includes a pool wall brick (1), which divides the kiln into an internal area (2) and an external area (3). The internal area (2) is equipped with an internal thermocouple (6), the external area (3) is equipped with an external thermocouple (5), and the external area (3) is equipped with several longitudinally arranged water pipes (4).

2. The heat dissipation control device for kiln pool wall bricks according to claim 1, characterized in that, The internal thermocouple (6) is located at the bottom of the internal area (2) of the kiln.

3. The heat dissipation control device for kiln pool wall bricks according to claim 1, characterized in that, The external thermocouple (5) is located between the pool wall brick (1) and the water pipe (4) and is close to the side of the pool wall brick (1).

4. The heat dissipation control device for kiln pool wall bricks according to claim 1, characterized in that, The water pipe (4) is located in the external area (3).

5. The heat dissipation control device for kiln pool wall bricks according to claim 1, characterized in that, The distance between the water pipe (4) and the pool wall brick (1) is 50~150mm.

6. The heat dissipation control device for kiln pool wall bricks according to claim 1, characterized in that, The number of water pipes (4) is ≥2.

7. The heat dissipation control device for kiln pool wall bricks according to claim 1, characterized in that, The diameter of the water pipe (4) is 10~50mm.

8. The heat dissipation control device for kiln pool wall bricks according to claim 1, characterized in that, The distance between adjacent water pipes (4) is 5~20mm.

9. The heat dissipation control device for kiln pool wall bricks according to claim 1, characterized in that, The water pipes (4) and the pool wall bricks (1) are distributed in parallel or in multiple staggered rows.

10. A heat dissipation regulating device for kiln pool wall bricks according to claim 1, characterized in that, The water pipe (4) adopts an independent water supply method with bottom inlet and top outlet.

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