Kiln pool wall brick heat dissipation regulation and control device and regulation and control method thereof

Abstract

The invention discloses a heat dissipation regulation and control device for kiln pool wall bricks and a use method of the heat dissipation regulation and control device, and belongs to the technical field of substrate glass production. According to the device, the plurality of water pipes are longitudinally arranged on the periphery of the kiln pool wall brick, and temperature monitoring of the inner and outer thermocouples is matched, so that the heat dissipation effect of the pool wall brick is accurately regulated and controlled. Through cooperative monitoring of the internal thermocouple and the external thermocouple, temperature changes of the inner side and the outer side of the pool wall brick can be fed back in real time, a reliable basis is provided for dynamic adjustment of the cooling strength, and it is ensured that the pool wall brick is always kept within the optimal working temperature range. And meanwhile, the water pipe structure which is longitudinally arranged can form a uniform cooling effect in the height direction of the pool wall bricks, so that the stability of temperature control is further improved. According to the device, the extensibility of a traditional cooling mode is fundamentally improved, the service life of the pool wall brick is remarkably prolonged, and a reliable guarantee is provided for long-term stable operation of the kiln. The regulation and control method is easy to operate and low in cost, and has good practicability and economical efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of substrate glass production, and particularly relates to a kiln pool wall brick heat dissipation regulation device and a regulation method thereof. BACKGROUND

[0002] As the core thermal equipment of glass industrial production, the running stability and service life of a glass kiln are directly related to the production efficiency and product quality. In the structure of the glass kiln, the pool wall brick is a key refractory material component directly contacting the high-temperature glass liquid, and long-term bears the chemical corrosion and mechanical scouring of the 1400-1600 DEG C high-temperature molten glass liquid. Such a harsh working environment makes the pool wall brick one of the most vulnerable links in the entire kiln, and its service life often determines the overhaul period of the entire kiln.

[0003] The air cooling direct blowing heat dissipation mode commonly used in the industry at present is to set a fan system outside the kiln pool wall, and to realize cooling by directly blowing air to the outer surface of the pool wall by forced convection. Although this traditional cooling mode can reduce the working temperature of the pool wall brick to a certain extent, it has many technical limitations in actual application. First, the cooling effect of the air cooling direct blowing is difficult to accurately regulate, the cooling air flow is unevenly distributed, and a temperature gradient is easily formed on the surface of the pool wall. When the cooling is insufficient, the high temperature of the pool wall brick will accelerate the erosion rate of the glass liquid to the brick body; and when the cooling is excessive, a large thermal stress will be generated in the brick body, causing micro-cracks or even direct cracking. Secondly, the impact of the direct blowing air flow may cause local overcooling of the pool wall brick, and form a steep temperature gradient between the hot surface and the cold surface of the brick body. Such uneven thermal stress distribution will significantly reduce the thermal shock resistance of the refractory material.

[0004] More importantly, the traditional air cooling mode lacks an intelligent temperature feedback control system, and cannot dynamically adjust the cooling intensity according to the actual temperature change of the pool wall brick. Such a extensive cooling mode cannot effectively solve the erosion problem of the pool wall brick, and may cause new structural damage due to improper cooling. In addition, dust and other impurities in the direct blowing air flow are easy to deposit on the surface of the pool wall, affecting the heat exchange efficiency, and long-term operation may also block the cooling air duct. These technical defects make it difficult for the traditional cooling mode to balance between protecting the pool wall brick and maintaining the optimal working temperature, which not only affects the thermal efficiency of the kiln, but also increases the maintenance cost and production downtime risk due to the premature damage of the pool wall brick.

[0005] The erosion and cracking of the pool wall brick is essentially caused by the mismatch between the temperature field distribution and the material thermodynamic performance. An ideal cooling system should be able to establish a uniform and controllable temperature field, so that the pool wall brick can both maintain sufficient mechanical strength to resist the erosion of the glass liquid and control the surface temperature within the optimal working range to slow down the erosion rate. However, the traditional air cooling direct blowing technology cannot achieve this technical goal due to the lack of precise temperature field regulation means, which has become one of the main technical bottlenecks restricting the long-term operation of the glass furnace. SUMMARY

[0006] The purpose of the present application is to overcome the above problems and provide a furnace pool wall brick heat dissipation regulation device and a regulation method thereof, so as to realize uniform heat dissipation of the furnace pool wall brick, effectively reduce the cracking and abnormal erosion of the pool wall brick, and prolong the service life of the furnace.

[0007] In order to achieve the above purpose, the present application adopts the following technical solutions: In a first aspect, the present application provides a furnace pool wall brick heat dissipation regulation device, comprising a pool wall brick, the pool wall brick divides the furnace into an inner region and an outer region, the inner region is provided with an inner thermocouple, the outer region is provided with an outer thermocouple, and the outer region is provided with a plurality of longitudinally arranged water pipes.

[0008] Further improvement of the present application is that the inner thermocouple is located at the bottom of the inner region of the furnace.

[0009] Further improvement of the present application is that the outer thermocouple is located between the pool wall brick and the water pipe and close to one side of the pool wall brick.

[0010] Further improvement of the present application is that the water pipe is arranged in the outer region and the distance between the water pipe and the pool wall brick is 50-150mm.

[0011] Further improvement of the present application is that the number of water pipes is greater than or equal to 2.

[0012] Further improvement of the present application is that the diameter of the water pipe is 10-50mm, and the distance between adjacent water pipes is 5-20mm.

[0013] Further improvement of the present application is that the distribution mode of the water pipe and the pool wall brick is parallel distribution or multi-row staggered distribution.

[0014] Further improvement of the present application is that the water pipe adopts independent water supply mode of down-in and up-out.

[0015] In a second aspect, the present application further provides a regulation method of the furnace pool wall brick heat dissipation regulation device, comprising the following steps: Step 1, measuring the glass liquid temperature by the inner thermocouple and measuring the outer temperature of the pool wall brick by the outer thermocouple; Step 2: Calculate the optimal temperature on the outside of the pool wall brick according to its thermal shock resistance performance; Step 3: Adjust the number of water pipes and water flow to make the temperature on the outside of the pool wall brick measured by the external thermocouple reach the optimal temperature.

[0016] Further improvement of the present application is that in step 3, the actual temperature on the outside of the pool wall brick is maintained above the optimal temperature value by adjusting the number of water pipes and water flow, and the difference between the actual temperature and the optimal temperature constitutes the temperature margin.

[0017] Compared with the prior art, the present application has the following beneficial effects: The present application provides a heat dissipation regulating device for kiln pool wall bricks, which realizes precise regulation and control of the heat dissipation effect of the pool wall bricks by longitudinally arranging multiple water pipes around the pool wall bricks and cooperating with the temperature monitoring of the internal and external thermocouples. Compared with the traditional air cooling direct blowing method, the water cooling system can more evenly and stably control the temperature distribution of the pool wall bricks by circulating cooling water to take away heat, avoiding the problem of local overheating or overcooling caused by uneven airflow in the air cooling method. The cooperative monitoring of the internal and external thermocouples can provide reliable basis for dynamic adjustment of the cooling intensity by real-time feedback of the temperature changes on both sides of the pool wall bricks, ensuring that the pool wall bricks always remain within the optimal working temperature range. This active cooling method effectively reduces the thermal stress of the pool wall bricks caused by temperature fluctuations, preventing the glass liquid from being eroded by excessive temperature and avoiding the risk of cracking caused by excessive cooling. At the same time, the longitudinally arranged water pipe structure can form a uniform cooling effect along the height direction of the pool wall bricks, further improving the stability of temperature control. This device fundamentally improves the extensive nature of the traditional cooling method, significantly prolongs the service life of the pool wall bricks, and provides reliable protection for the long-term stable operation of the kiln.

[0018] Further, the water pipes are arranged in the external area and are 50-150 mm away from the pool wall bricks, which makes the heat dissipation effect of the water pipes and the thermal load of the pool wall bricks reach the optimal balance. If the distance is less than 50 mm, it will cause local overcooling and easily cause thermal shock cracks in the pool wall bricks; if the distance is greater than 150 mm, the heat dissipation is insufficient and the temperature of the pool wall bricks cannot be effectively controlled.

[0019] Further, the number of water pipes is greater than or equal to 2, which not only ensures the redundancy of basic heat dissipation requirements, but also provides the possibility of flexible regulation and control. When a water pipe needs to be maintained or has abnormal flow, other water pipes can still maintain basic cooling function, and this redundant design significantly improves the system reliability.

[0020] Further, the diameter of the water pipe is 10-50mm, which can ensure sufficient cooling water flux per unit time and avoid the decrease of water flow speed and heat exchange efficiency caused by too large pipe diameter. The diameter range cooperates with the 5-20mm spacing to achieve the best balance of heat exchange between the cooling water and the pool wall brick, which neither causes local overcooling due to too small spacing nor affects the heat dissipation efficiency due to too large spacing.

[0021] Further, the water pipe and the pool wall brick are distributed in parallel or in multiple rows in staggered manner. The parallel distribution facilitates the standardized arrangement and maintenance of the pipeline system, while the multiple rows in staggered manner can produce more uniform temperature field distribution. The two distribution modes can be flexibly selected according to the heat dissipation requirements of different parts of the kiln.

[0022] Further, the water pipe adopts independent water supply from bottom to top, and the water inlet is located at the bottom to ensure that the pipeline system is always full of cooling water and avoid cavitation phenomenon. The independent water supply design of each water pipe allows precise flow regulation according to the temperature difference of different sections of the pool wall brick. Compared with serial water supply, this control mode has higher regulation accuracy and response speed.

[0023] The present application also provides a regulation method of the kiln pool wall brick heat dissipation regulation device. The regulation method realizes precise optimization of the heat dissipation effect of the pool wall brick by combining real-time monitoring with dynamic adjustment. By arranging thermocouples inside and outside the pool wall brick of the kiln, the glass liquid temperature and the temperature outside the pool wall brick are measured, and the optimal temperature outside the pool wall brick and the required heat dissipation are calculated according to the glass liquid temperature, the thermal shock resistance of the pool wall brick and other factors, which can realize precise control of the heat dissipation of the pool wall brick and avoid the problem that the traditional method cannot adjust the cooling effect according to the actual situation. By adjusting the number and flow of the water pipe according to the required heat dissipation calculated, the heat dissipation of the pool wall brick can be precisely controlled to meet the heat dissipation requirements under different working conditions, which improves the control accuracy and adaptability. At the same time, the regulation method of the present application is simple in operation and low in cost, only water pipes and thermocouples need to be arranged outside the pool wall brick, and a complex control system is not required, which can realize precise control of the heat dissipation of the pool wall brick and has good practicability and economy. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present application in any way. In addition, the shapes and scale sizes of the components in the drawings are only illustrative and are used to help understand the present application, and are not specific limitations on the shapes and scale sizes of the components.

[0025] Figure 1 is a front view of the kiln pool wall brick heat dissipation regulation device of the present application; Figure 2 is a top view of the kiln pool wall brick heat dissipation regulation device of the present application.

[0026] Wherein: 1, pool wall brick; 2, inner area; 3, outer area; 4, water pipe; 5, outer thermocouple; 6, inner thermocouple. DETAILED DESCRIPTION

[0027] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0029] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the embodiments of the present application, it also needs to be explained that, unless explicitly specified and limited, if the terms "arrange", "install", "connect", "connect" appear, they should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] The present application will be further described in detail below in conjunction with the drawings: As shown in Figure 1 and Figure 2 The present application provides a kiln pool wall brick heat dissipation regulating device, which comprises a pool wall brick 1, the pool wall brick 1 divides the kiln into an inner region 2 and an outer region 3, the inner region 2 is provided with an inner thermocouple 6, the inner thermocouple 6 is located at the bottom of the inner region 2 of the kiln, and is used to display the temperature of the glass liquid in the kiln; the outer region 3 is provided with an outer thermocouple 5, the outer thermocouple 5 is located between the pool wall brick 1 and the water pipe 4 and is close to one side of the pool wall brick 1, and is used to display the temperature on the outside of the pool wall brick 1; the outer region 3 is provided with a plurality of longitudinally arranged water pipes 4.

[0034] As a preferred scheme, the water pipe 4 is arranged in the outer region 3, and the distance from the pool wall brick 1 is 50-150 mm, which makes the heat dissipation effect of the water pipe 4 and the heat load of the pool wall brick 1 reach the best balance, if the distance is less than 50 mm, it will cause local supercooling, which is easy to cause thermal shock cracks of the pool wall brick 1; if the distance is greater than 150 mm, the heat dissipation is insufficient, and the temperature of the pool wall brick 1 cannot be effectively controlled.

[0035] As a preferred scheme, the number of water pipes 4 is greater than or equal to 2, which not only ensures the redundancy of the basic heat dissipation demand, but also provides the possibility of flexible regulation, when a certain water pipe 4 needs to be maintained or has abnormal flow, other water pipes 4 can still maintain the basic cooling function, and such redundant design significantly improves the system reliability. The spacing between adjacent water pipes 4 is 5-20 mm, which can form a continuous and uniform temperature control belt on the outer surface of the pool wall brick 1, effectively avoiding the problem of local uneven heat dissipation caused by a single water pipe 4.

[0036] As a preferred scheme, the diameter of the water pipe 4 is 10-50 mm, which can ensure sufficient cooling water flux per unit time, and can also avoid the decrease of water flow velocity and the decrease of heat exchange efficiency caused by too large pipe diameter. The diameter range cooperates with the 5-20 mm spacing setting to make the heat exchange between the cooling water and the pool wall brick 1 reach the best balance state, which neither causes local supercooling due to too small spacing, nor affects the heat dissipation efficiency due to too large spacing.

[0037] As a preferred solution, the water pipes 4 are arranged in parallel or in multiple staggered rows with the pool wall bricks 1. The parallel arrangement facilitates the standardization of the pipeline system and maintenance, while the staggered arrangement can produce a more uniform temperature field distribution. In particular, when arranged in staggered rows, the cooling areas generated by adjacent water pipes 4 can form complementary coverage, eliminating the temperature "blind spots" that may exist in parallel arrangement.

[0038] As a preferred solution, the water pipes 4 are supplied with water from the bottom to the top, which ensures that the pipeline system is always filled with cooling water, avoiding cavitation. The independent water supply design of each water pipe 4 allows for precise flow regulation according to the temperature differences of different sections of the pool wall bricks 1. This control method has higher control accuracy and response speed compared to serial water supply.

[0039] The present application also provides a control method for a kiln pool wall brick heat dissipation control device, comprising the following steps: Step 1: Measure the glass liquid temperature with the internal thermocouple 6 and the pool wall brick 1 outside temperature with the external thermocouple 5. Step 2: Calculate the optimal outside temperature based on the thermal shock resistance of the pool wall brick 1. Step 3: Adjust the number of water pipes 4 and water flow to make the pool wall brick 1 outside temperature measured by the external thermocouple 5 reach the optimal temperature.

[0040] In some embodiments, when the pool wall brick 1 outside temperature deviates from the optimal temperature, the control system preferentially adjusts the water flow for temperature fine-tuning. In high-temperature working conditions, the water pipes 4 arranged in multiple staggered rows can be activated to maintain temperature stability by increasing the heat dissipation area. In low-temperature working conditions, the system switches to 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.

[0041] Specifically, this method realizes dynamic optimization through the establishment of a closed-loop control system for temperature monitoring, calculation analysis, and execution adjustment. The internal thermocouple 6 continuously collects glass liquid temperature data, reflecting the heat source input state; the external thermocouple 5 monitors the pool wall brick 1 surface temperature in real time, representing the efficiency of the heat dissipation system. These two temperature parameters form a complete temperature field data chain, providing input benchmarks for subsequent calculations. In the calculation stage, a thermal stress model is established based on the thermal shock resistance parameters of the pool wall brick 1 material, and the optimal temperature interval that can ensure structural strength and delay erosion is determined through numerical simulation. In the execution adjustment stage, a hierarchical control strategy is adopted: first, the number of water pipes 4 in operation is adjusted to change the overall heat dissipation capacity; then, the flow of each water pipe 4 is adjusted to accurately control the local heat dissipation intensity. This dual-variable control mechanism ensures the response speed of temperature regulation and improves the control accuracy.

[0042] As a preferred solution, the actual temperature on the outside of the pool wall brick 1 is maintained above the optimal temperature value by adjusting the number of water pipes 4 and the water flow rate, and the difference between the actual temperature and the optimal temperature constitutes a temperature margin, and a certain temperature margin is reserved to resist the temperature impact on the pool wall brick 1 caused by abnormal kiln temperature.

[0043] The actual temperature refers to the temperature data on the outside of the pool wall brick 1 measured in real time by the external thermocouple 5, which can be periodically collected by a contact temperature sensor, and directly reflects the instantaneous heat dissipation effect of the cooling system. The optimal temperature refers to the theoretical safe temperature threshold calculated according to the thermal shock resistance of the pool wall brick 1 material, which can be obtained by mathematical modeling of the material thermal expansion coefficient and thermal conductivity, and serves as a reference value for temperature regulation.

[0044] Specifically, when the external thermocouple 5 detects that the temperature on the outside of the pool wall brick 1 approaches the optimal temperature, the cooling system reduces the heat dissipation intensity by reducing the water flow rate or closing part of the water pipes 4, so that the actual temperature is automatically maintained above the optimal temperature. The existence of the temperature margin allows the cooling system to avoid frequent adjustment actions caused by slight temperature fluctuations while ensuring the lower limit of the safe temperature of the pool wall brick 1. When the glass liquid temperature rises due to production process, the difference between the actual temperature and the optimal temperature increases, at which time the system increases the water flow rate or activates the number of water pipes 4 to expand the heat dissipation capacity, so that the temperature margin returns to a reasonable range, optimizing the frequency of cooling parameter adjustment, while ensuring that the pool wall brick 1 is always within the temperature range allowed by the thermal shock resistance.

[0045] Through the above technical solution, the system stability problem caused by excessive adjustment in the traditional cooling method is solved, and the thermal stress damage to the pool wall brick 1 caused by sudden temperature drop is prevented. The cooling system autonomously maintains heat dissipation balance within the temperature margin range, reducing the frequency of manual intervention and prolonging the service life of the equipment. The buffering effect of the temperature margin also improves the adaptability of the system to sudden working conditions, ensuring that the pool wall brick 1 can maintain a stable thermodynamic state when the glass liquid temperature fluctuates.

[0046] Many embodiments and many applications other than those provided in the foregoing description are within the scope of the present teachings. Accordingly, the scope of the present teachings should not be determined with reference to the foregoing description, but instead should be determined with reference to the following claims along with their full scope of equivalents. For purposes of completeness, all articles and references including patents and patent documents are incorporated herein by reference. The disclosure of any aspect of the subject matter disclosed herein is not a disclaimer of that subject matter unless it is expressly recited in one or more of the appended claims or to the effect that such a subject matter is not part of the present teachings.

[0047] The above is a further detailed description of the present application, which cannot be deemed to limit the specific embodiments of the present application to the above, and for those skilled in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be deemed to belong to the present application determined 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 outer area (3) and is 50-150 mm away from the pool wall bricks (1).

5. 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.

6. 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, and the distance between adjacent water pipes (4) is 5~20mm.

7. 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.

8. The heat dissipation control 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.

9. A method for controlling the heat dissipation of kiln pool wall bricks using any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Measure the temperature of the molten glass using an internal thermocouple (6) and measure the temperature of the outer side of the pool wall brick (1) using an external thermocouple (5); Step 2: Calculate the optimal temperature on the outside based on the thermal shock resistance of the pool wall bricks (1); Step 3: Adjust the number of water pipes (4) and the water flow rate so that the temperature of the outside of the pool wall bricks (1) measured by the external thermocouple (5) reaches the optimal temperature.

10. The control method of the heat dissipation control device for kiln pool wall bricks according to claim 9, characterized in that, In step 3, the actual temperature of the outside of the pool wall bricks (1) is maintained above the optimal temperature value by adjusting the number of water pipes (4) and the water flow rate. The difference between the actual temperature and the optimal temperature constitutes the temperature margin.

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