Energy-saving cooling device for fused quartz

Abstract

An energy-saving cooling device for fused quartz comprises a cooling box and a plurality of turbulent plates arranged above the circumferential surface of a fused quartz column in a staggered mode, the turbulent plates are provided with splitter plates located on the windward sides of the turbulent plates, the splitter plates and turbulent plate bodies are arranged in an included angle mode, and the side walls of the bottoms of the turbulent plates are provided with a plurality of triangular cones facing the surface of the fused quartz column. And a plurality of groups of ball sockets are arranged among the triangular cones. The heat exchange efficiency is improved under the condition that the flow speed of the main channel is basically maintained through the staggered turbulent flow plates and the triangular cones and ball socket structures arranged on the surfaces of the turbulent flow plates; when cooling airflow flows through the turbulent flow plates, the turbulent flow plates arranged in a staggered mode divide main airflow with small flowing resistance to enable the main airflow to generate turbulent flow, the turbulent flow is repeatedly refracted through the triangular cones, the contact time of local airflow is effectively prolonged, and in the refraction process, the ball sockets capture the airflow in a near-wall area and form stable tiny vortexes; and the turbulence heat exchange effect is continuously enhanced.

Description

Technical Field

[0001] This invention belongs to the field of fused silica technology, specifically referring to an energy-saving cooling device for fused silica. Background Technology

[0002] After being processed and shaped at high temperatures, fused silica products need to undergo a cooling process from over 1000 degrees Celsius to near room temperature. Currently, the common cooling methods mainly rely on natural cooling in the environment, or are supplemented by direct blowing of low-temperature airflow onto the surface of the quartz cylinder. However, the natural cooling cycle is extremely long, severely restricting production efficiency and equipment turnover rate. While forced airflow cooling accelerates cooling to some extent, it is a crude method with low heat exchange efficiency and low energy utilization, which contradicts the current industrial trend of energy conservation and environmental protection.

[0003] A significant physical contradiction exists in existing technology: theoretically, increasing the flow rate of the cooling airflow can more quickly remove hot air from the quartz surface, thus increasing the cooling rate. However, in practice, excessively high flow rates result in too short a contact time between the airflow and the high-temperature surface, causing the heat to leave before it is fully absorbed, thereby reducing the efficiency of a single heat exchange and wasting airflow power resources. This contradiction between "flow rate and efficiency" restricts further optimization of the cooling effect. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides an energy-saving cooling device for fused silica, which at least partially solves the above problems.

[0005] The technical solution adopted by this invention is as follows: This invention proposes an energy-saving cooling device for fused silica, comprising: Cooling chamber, used to fix molten quartz columns and apply cooling airflow to their surface; Multiple turbulence plates extend axially along the fused silica column and are distributed in multiple rows around its circumferential surface; wherein, The turbulence plates in the same row are spaced apart from each other, and the turbulence plates in adjacent rows are staggered in both the circumferential and axial directions of the fused silica column, so that the airflow is continuously divided and deflected as it flows through. The turbulence plate has a flow divider on its windward side, which is arranged at an angle to the turbulence plate body to guide and divide the airflow. The turbulence plate has multiple triangular pyramids on its sidewall facing the fused silica column, with the tips of the pyramids facing the center of the fused silica column.

[0006] Furthermore, multiple sets of spherical sockets are provided between adjacent triangular cones to generate and maintain vortices under the action of airflow, with the center of each spherical socket located outside the sidewall of the turbulence plate.

[0007] Furthermore, the cooling box is equipped with multiple height-adjustable first adjustment rods, the bottom end of which is connected to a partition plate. The partition plate maintains a sealed sliding fit with the inner wall of the cooling box, and the vertical position of the partition plate inside the cooling box can be controlled by adjusting the first adjustment rods.

[0008] Furthermore, a compensation plate is slidably provided inside the partition plate, and a guide cone for guiding airflow is provided at the end of the compensation plate away from the partition plate.

[0009] Furthermore, the tip of the guide cone is positioned upwards, and the tip of the guide cone is arranged adjacent to the circumferential surface of the fused quartz column; the tilt angle of the tip of the guide cone is adapted to the tilt angle of the diverter plate to guide and divide the airflow in a coordinated manner.

[0010] Furthermore, the cooling box is provided with multiple height-adjustable second adjustment rods, and the bottom end of the second adjustment rod is rotatably provided with an angle rod, which is connected to the turbulence plate through a connecting seat.

[0011] Furthermore, the side wall of the cooling box is provided with a cold air inlet, and the bottom of the inner wall of the cooling box is provided with a rectangular guide channel, which is configured to convert the incoming cold airflow into a uniform upward blowing flow field.

[0012] Furthermore, the upper wall of the cooling box is provided with a flared opening at the center, the flared opening faces downward, and an air intake hood is connected above the flared opening, the air intake hood being provided with an air extraction port.

[0013] Furthermore, multiple rollers are arranged above the rectangular guide channel, and the generatrix of each roller is configured as an inwardly concave arc in the direction of its axis. Pressure caps are provided at both ends of the cooling box.

[0014] The beneficial effects achieved by this invention are as follows: By using staggered turbulence plates and the triangular pyramid and spherical cavity structures on their surfaces, heat exchange efficiency is improved while maintaining the main channel flow velocity. When the cooling airflow passes through the turbulence plates, the staggered turbulence plates divide the main airflow with relatively small flow resistance, causing it to generate turbulence. A portion of the airflow flows to the surface of the quartz cylinder and undergoes repeated refraction by the triangular pyramids, effectively extending the contact time of the local airflow. During the refraction process, the spherical cavity captures the airflow in the near-wall region and forms stable micro-vortices, continuously enhancing the turbulent heat transfer effect. Without significantly increasing the system pressure drop or relying on increasing the flow velocity, this turbulence plate achieves a simultaneous improvement in cooling efficiency and energy utilization, resulting in significant energy-saving and efficiency-enhancing effects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an energy-saving cooling device for fused silica according to an embodiment of the present invention; Figure 2 for Figure 1 A sectional view; Figure 3 This is a diagram showing the distribution of turbulent plates on a fused silica column; Figure 4 for Figure 2 Enlarged view of section I; Figure 5 This is a front view of the turbulence plate; Figure 6 This is a schematic diagram of the turbulence plate.

[0016] Among them, 1. Cooling box, 2. Suction hood, 3. Pressure cap, 4. Cold air inlet, 5. Air extraction port, 6. First adjusting rod, 7. Second adjusting rod, 8. Trumpet mouth, 9. Rectangular guide channel, 10. Roller, 11. Fused quartz column, 12. Turbulence plate, 13. Divider plate, 14. Compensation plate, 15. Guide cone, 16. Flow divider plate, 17. Connecting seat, 18. Triangular cone, 19. Ball socket.

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0020] like Figures 1-6 As shown in the figure, an energy-saving cooling device for fused silica provided in this embodiment of the invention mainly includes components such as a cooling box 1, a turbulence plate 12, a partition plate 13, a compensation plate 14, a guide cone 15, a rectangular guide channel 9, a roller 10, a bell mouth 8, and an air suction hood 2.

[0021] The cooling box 1 is the main structure of this device, used to contain and fix the molten quartz column 11 to be cooled. One or more cold air ports 4 are provided on one side wall of the cooling box 1 for connecting the low-temperature cooling airflow provided from the outside. At the bottom of the inner wall of the cooling box 1, there is a rectangular guide channel 9 that communicates with the cold air port 4. The function of the rectangular guide channel 9 is to transform the relatively concentrated cold airflow entering from the cold air port 4 into a flat flow field that is evenly distributed along the length of the cooling box 1 and blown vertically upward, so as to ensure uniform initial cooling of the bottom of the molten quartz column 11.

[0022] Above the rectangular guide channel 9, multiple freely rotating rollers 10 are arranged side by side. The generatrix (i.e., its outer contour line) of each roller 10 is not a straight line or an outwardly convex arc, but is designed as an inwardly concave arc in the direction of its axis. This unique concave roller 10 helps to support and guide the molten quartz column 11 to smoothly enter, pass through and move out of the cooling box 1. At the same time, its special shape can minimize the obstruction and interference to the upward airflow at the bottom, and also prevent the molten quartz column 11 from shifting left and right under the push of the airflow.

[0023] A downward-facing flared opening 8 is provided at the center of the upper wall of the cooling box 1. An air suction hood 2 is connected above the flared opening 8, and an air extraction port 5 is provided on the air suction hood 2. This structure utilizes the fluid effect to efficiently draw the airflow that has become heated after flowing over the surface of the molten quartz column 11 upward and discharge it. A stable and controllable cooling airflow path is formed in the cooling box 1 from the bottom (cold air port 4, rectangular guide channel 9) to the top (flared opening 8, air suction hood 2), which avoids the accumulation of hot air in the box.

[0024] To achieve adaptive fixing and efficient cooling of fused silica columns 11 with different diameters, multiple independently adjustable first adjusting rods 6 and second adjusting rods 7 are provided on the cooling box 1.

[0025] A partition plate 13 is connected to the bottom end of the first adjusting rod 6. The partition plate 13 maintains a sealed sliding fit with the inner wall of the cooling box 1. By sliding the first adjusting rod 6, the vertical height of the partition plate 13 in the cooling box 1 can be precisely controlled, thereby adapting to fused silica columns 11 of different diameters and ensuring that it is always matched with the center height of the fused silica column 11. This prevents the low-temperature airflow in the area below the center of the fused silica column 11 from flowing directly upwards, and directs it to flow to the area above the center of the fused silica column 11, thereby improving heat exchange efficiency. To further optimize the gap between the partition plate 13 and the fused silica column 11 and avoid the gap being too large, which would cause the low-temperature airflow to be lost, a compensation plate 14 is slidably installed inside the partition plate 13. The compensation plate 14 can extend or retract horizontally relative to the partition plate 13. By sliding the compensation plate 14, the gap between the fused silica columns 11 of different diameters and the compensation plate 14 can be controlled, so that the gap is always maintained within a reasonable range.

[0026] Furthermore, in order to guide the low-temperature airflow flowing through this gap to act on the surface of the fused silica column 11, a guide cone 15 is provided at the end of the compensation plate 14 away from the partition plate 13. The tip of the guide cone 15 is set upward, and when it is adjusted into position, the tip of the cone is close to but does not contact the circumferential surface of the fused silica column 11. The low-temperature airflow in the lower part of the middle of the fused silica column 11 is blocked by the partition plate 13 and the compensation plate 14 and cannot flow directly upward. Finally, under the action of the guide cone 15, it will flow out from the gap between the compensation plate 14 and the fused silica column 11. This flow direction is adapted to the tilt angle of the guide cone 15.

[0027] Similarly, in order to adapt the turbulence plate 12 to different height requirements of the fused silica column 11, an angle rod is rotatably provided at the bottom end of the second adjusting rod 7. The angle rod is then connected to the turbulence plate 12 through the connecting seat 17. By adjusting the height of the second adjusting rod 7 and rotating the angle rod, the radial distance and circumferential angle of the turbulence plate 12 relative to the surface of the fused silica column 11 can be flexibly adjusted to receive the low-temperature airflow from the guide cone 15.

[0028] The core innovation of this invention lies in the multiple turbulence plates 12 arranged in a staggered pattern above the circumferential surface of the fused silica column 11. This staggered arrangement ensures that the cooling airflow covers the entire cylindrical surface without any dead angles, thus disrupting the boundary layer of the low-temperature airflow. The airflow behind the first row of turbulence plates 12 is the area with the strongest disturbance and the highest heat exchange efficiency. If the second row of turbulence plates 12 is aligned, the airflow will naturally flow along these straight, aligned grooves, forming new and relatively stable "channels," which will rapidly weaken the heat exchange enhancement effect because the airflow has found a "shortcut" and no longer fully interacts with the hot surface. The effect of the second row of turbulence plates 12 cannot be maximized. When the second row is staggered, it directly acts on the fresh laminar or low-turbulence airflow that has not been disturbed by the first row. This allows each row of turbulence plates 12 to work efficiently "from scratch," allowing the high heat exchange zone to regenerate periodically on the surface, thereby making the heat exchange on the entire cylindrical surface very uniform and efficient.

[0029] Meanwhile, a flow divider 16 is provided on the windward side (i.e. the side facing the direction of the airflow) of each turbulence plate 12. The flow divider 16 is arranged at a certain angle to the body of the turbulence plate 12. Its primary function is to "cut" and guide the main airflow with minimal flow resistance, so that it generates an initial flow vortex.

[0030] On the side wall of the turbulence plate 12 facing the fused silica column 11, a number of triangular pyramids 18 are densely arranged. The tips of all the triangular pyramids 18 are precisely pointing towards the center of the fused silica column 11. The main function of these triangular pyramids 18 is to guide the airflow initially guided by the diverter plate 16. They cause a part of the airflow to undergo repeated refraction and impact between the triangular pyramids 18 and the fused silica column 11, which greatly prolongs the residence (contact) time of this part of the local airflow near the high temperature surface, thereby fully carrying out heat exchange.

[0031] Between adjacent triangular cones 18, multiple sets of spherical sockets 19 are also provided. As a highly efficient micro-vortex generator, the spherical sockets 19 can capture the airflow in the near-wall region and form a series of stable, small-scale vortices. These micro-vortices greatly enhance the mixing effect of the airflow at the micro level, thereby continuously strengthening turbulent heat transfer. At the same time, the center of these spherical sockets 19 is located outside the sidewall of the turbulence plate 12 to avoid the spherical sockets 19 being too deep and affecting the vortex effect.

[0032] Of particular note is that the tilt angle of the tip of the guide cone 15 is designed to match the tilt angle of the splitter plate 16. This matching ensures that the airflow guided laterally by the guide cone 15 can smoothly connect and work together with the main airflow after being divided by the splitter plate 16, so as to achieve precise control and efficient utilization of the cooling airflow and avoid energy loss caused by mutual interference between airflows.

[0033] In practice, the pressure cap 3 is opened, and the fused silica column 11 is pushed into the cooling box 1. The low-temperature cooling airflow enters from the cold air inlet 4 and is transformed into a uniform upward airflow through the rectangular guide channel 9. This first cools the bottom of the fused silica column 11. According to the Coanda effect, in the lower middle region of the fused silica column 11, the airflow preferentially flows along the circumferential sidewall of the fused silica column 11 until it impacts the partition plate 13 and the compensation plate 14. Then, guided by the guide cone 15, it enters the enhanced heat transfer zone composed of staggered turbulence plates 12. The flow is first divided by the flow divider 16 and generates an ordered vortex. Then, a portion of the airflow is repeatedly impacted and refracted under the guidance of the triangular cone 18, extending the heat exchange time. At the same time, the ball socket 19 generates a stable micro-vortex in the near-wall region, which violently mixes the fluid. The whole process maximizes the conversion of the kinetic energy of the airflow into heat exchange efficiency without significantly increasing the system pressure drop, successfully resolving the contradiction between "flow velocity and efficiency". Finally, the heated airflow is efficiently discharged by the top horn 8 and the suction hood 2, completing the entire efficient and energy-saving cooling process.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An energy-saving cooling device for fused silica, characterized in that, include: Cooling box (1), which surrounds the molten quartz column and applies cooling airflow to its surface; Multiple turbulence plates (12) extend along the axial direction of the fused silica column and are distributed in multiple rows around its circumferential surface; wherein the turbulence plates (12) in the same row are spaced apart from each other, and the turbulence plates (12) in adjacent rows are staggered in both the circumferential and axial directions of the fused silica column. Among them, the turbulence plate (12) is provided with a flow divider (16) on the windward side. The flow divider (16) is arranged at an angle to the body of the turbulence plate (12) to guide and divide the airflow. The turbulence plate (12) has multiple triangular pyramids (18) on its sidewall facing the fused silica column, with the tips of the triangular pyramids (18) facing the center of the fused silica column.

2. The energy-saving cooling device for fused silica according to claim 1, characterized in that: Multiple sets of spherical sockets (19) are provided between adjacent triangular cones (18) to generate and maintain vortices under the action of airflow, and the center of the spherical socket (19) is located outside the side wall of the turbulence plate (12).

3. The energy-saving cooling device for fused silica according to claim 1, characterized in that: The cooling box (1) is provided with a plurality of adjustable height first adjustment rods (6), and the bottom end of the first adjustment rod (6) is connected to a partition plate (13). The partition plate (13) maintains a sealed sliding fit with the inner wall of the cooling box (1). The vertical position of the partition plate (13) in the cooling box (1) can be controlled by adjusting the first adjustment rod (6).

4. The energy-saving cooling device for fused silica according to claim 3, characterized in that: A compensation plate (14) is slidably provided inside the partition plate (13), and a guide cone (15) for guiding airflow is provided at the end of the compensation plate (14) away from the partition plate (13).

5. The energy-saving cooling device for fused silica according to claim 4, characterized in that: The tip of the guide cone (15) is set upwards, and the tip of the guide cone (15) is arranged adjacent to the circumferential surface of the fused silica column; the tilt angle of the tip of the guide cone (15) is adapted to the tilt angle of the splitter plate (16) to guide and divide the airflow in a coordinated manner.

6. The energy-saving cooling device for fused silica according to claim 1, characterized in that: The cooling box (1) is provided with a plurality of adjustable height second adjustment rods (7), and the bottom end of the second adjustment rod (7) is provided with an angle rod, which is connected to the turbulence plate (12) through a connecting seat (17).

7. The energy-saving cooling device for fused silica according to claim 1, characterized in that: The side wall of the cooling box (1) is provided with a cold air inlet (4), and the bottom of the inner wall of the cooling box (1) is provided with a rectangular guide groove (9). The rectangular guide groove (9) is configured to convert the incoming cold airflow into a uniform upward flow field.

8. The energy-saving cooling device for fused silica according to claim 7, characterized in that: The cooling box (1) has a flared mouth (8) at the center of the upper wall. The flared mouth (8) faces downward. An air suction hood (2) is connected above the flared mouth (8). An air suction port (5) is provided on the air suction hood (2).

9. The energy-saving cooling device for fused silica according to claim 7, characterized in that: Multiple rollers (10) are arranged above the rectangular guide channel (9). The generatrix of each roller (10) is configured as an arc concave in the direction of its axis. Pressure caps (3) are provided at both ends of the cooling box (1).

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