Factory cooling structure

Abstract

The present invention provides a heat dissipation structure for a factory building, wherein a first side wall of the factory building is parallel to a second side wall, and a roof and the four side walls jointly frame an indoor space; a lower half of the first side wall is provided with at least one air inlet extending laterally, and a lower half of the second side wall is provided with at least one exhaust port extending laterally, for inputting cold air through the at least one air inlet and then exhausting hot air through the at least one exhaust port; the heat dissipation structure for the factory building includes a plurality of air flow control plates, the plurality of air flow control plates are arranged at intervals in a direction from at least one air inlet to at least one exhaust port, the plurality of air flow control plates are respectively elongated plates extending downward from the roof, and an elongated groove is formed between the plurality of air flow control plates, the long direction of the elongated groove is parallel to the first side wall, the short direction width of the elongated groove is L, and the height of the elongated groove is H, where H is ≥ 0.1L.

Description

Technical Field

[0001] The present invention relates to a heat dissipation structure for a factory building, in particular to a heat dissipation structure for a factory building or a farm building that can effectively remove heat. Background Art

[0002] For small and medium-sized factories under 6 meters in height, to enhance cooling, multiple self-rotating fans are typically installed on the roof to exhaust heat and protect against rain. Alternatively, a series of fans are hung above workers in the factory's work area, or placed below human height to exhaust heat and cool the workers. Larger factories, such as those 15 meters high, 50 meters wide, and 200 meters long, typically employ natural ventilation, typically with an elevated tower above the building, flanked by openable side windows. The work area below also has side windows for air intake, and the roof is typically raised to minimize the effects of radiant heat from the roof.

[0003] However, because traditional cooling methods fail to address the details of fluid flow, they easily create large areas of recirculation and / or low-velocity zones within the factory, leading to high pollutant concentrations. Workers often experience a near-zero wind and a stuffy feeling, so they instinctively increase air volume or the number of fans. However, this approach is ineffective, consumes energy, and increases noise. Furthermore, workers are uncomfortable being buffeted by high-velocity airflow for extended periods. Furthermore, due to the limited or poorly distributed openings of the Prince Building's side windows or the roof's rotating fans, much of the heat within the factory building cannot be effectively removed. This creates large recirculation bubbles within the building, drawing the heat from above down to the work area below, causing temperatures to rise. At this point, the air outside the factory is pulled by the buoyancy of the heat inside. Upon entering the lower side windows, it is quickly directed upwards due to the large recirculation bubbles. As a result, while workers may feel a sense of coolness within a short area near the windows, the majority of the interior remains stuffy. Even if a large number of fans are used, the hot air is only sucked in from the back of the fan and blown out from the front of the fan. This still cannot solve the problem of workers feeling uncomfortable because the temperature of most of the working area below rises, which leads to reduced work efficiency and even occupational injuries.

[0004] Therefore, patents such as Taiwan Patent Publication No. I659145, "Factory Heat Dissipation Structure," and US Patent Publication No. US6,321,687, "Individual Room Duct and Ventilation System for Livestock Production Building," each propose a solution suitable for both human work and livestock production, such as ventilation systems for chicken and piggeries. Taiwan Patent No. I659145 primarily creates a partition between a first platform and a second platform, allowing air from outside the factory to enter the first and second lower working areas through two opposing air inlets. Thermal buoyancy then allows the hot air to flow upward through the partition between the two platforms and be discharged through the air outlet to dissipate heat. US6,321,687, on the other hand, primarily utilizes a vertical flow field to achieve effective ventilation within livestock production buildings. Summary of the Invention

[0005] A factory building structure with a partition between two opposing platforms and air inlets on the lower halves of the two side walls connecting the two platforms can simultaneously draw air in through both inlets and achieve heat dissipation through the action of thermal buoyancy. However, due to the narrow width of the partition between the two platforms, this "double-platform" structure is significantly limited in the number and location of overhead cranes or other large equipment that are taller than the "double-platform" structure. Furthermore, the overall structure of a configuration that can generate a "vertical flow field," such as that described in US Pat. No. 6,321,687, is more complex. In view of this, in order to provide a structure that is different from conventional technology and improves the above-mentioned shortcomings, the inventors, through years of experience and continuous research and development, have developed the present invention.

[0006] The purpose of the present invention is to provide a factory heat dissipation structure to solve the problems of conventional factories that cannot place overhead cranes or other large machines in the required locations; and the overall complexity of the ventilation and heat dissipation structure. By providing an effective ventilation and heat dissipation structure, overhead cranes or other large machines can be configured according to the actual needs of the factory to improve work efficiency. The "horizontal flow field" configuration is used to simplify the equipment, allowing the heat dissipation airflow to flow smoothly, thereby saving power consumption and reducing noise generation, thereby improving the quality of the working environment.

[0007] To achieve the above-mentioned objectives, the present invention provides a heat dissipation structure for a factory building, comprising a roof and a first side wall, a third side wall, a second side wall, and a fourth side wall disposed below the roof and arranged in sequence. The first side wall is parallel to the second side wall, and the roof, the first side wall, the third side wall, the second side wall, and the fourth side wall collectively enclose an indoor space. The lower half of the first side wall is provided with at least one air inlet extending laterally, and the lower half of the second side wall is provided with at least one air outlet extending laterally, for input of cool air through the at least one air inlet and exhaust of hot air through the at least one outlet. The heat dissipation structure for the factory building comprises a plurality of air flow control plates, the plurality of air flow control plates being arranged at intervals with the at least one air inlet facing the at least one outlet. The plurality of air flow control plates are elongated plates extending downward from the roof. An elongated slot is formed between the plurality of air flow control plates. The long direction of the elongated slot is parallel to the first side wall, and the short direction of the elongated slot is a width L. The height of the elongated slot is H, where H is ≥ 0.1L.

[0008] During implementation, the airflow control plate has a first vertical side edge and a second vertical side edge in parallel in the long direction. The first vertical side edge is adjacent to the inner wall surface of the third side wall, and the second vertical side edge is adjacent to the inner wall surface of the fourth side wall.

[0009] During implementation, the total window opening ratio of at least one air inlet is the total opening area of ​​at least one air inlet / the area of ​​the first side wall, and the total window opening ratio is between 20% and 100%; the exhaust center height position of at least one exhaust port is between the center height and the top height position of at least one air inlet.

[0010] During implementation, the present invention further includes a long platform, which has a first side and a second side that are parallel in the short direction. The first side is connected to the inner wall surface of the first side wall, and there is a gap between the second side and the inner wall surface of the second side wall; at least one air inlet is opened in the lower half of the first side wall below the long platform.

[0011] When implemented, the bottom edge of the airflow control plate is higher than the horizontal height of the long platform.

[0012] In implementation, the bottom edge of the airflow control plate has a first flat plate, and the first flat plate extends horizontally toward the second side wall.

[0013] In implementation, the bottom edge of the airflow control plate has a second flat plate, and the second flat plate extends horizontally toward the first side wall.

[0014] During implementation, the present invention further includes at least one blowing pipe, which is parallel to the second side wall and located in the middle and downstream of the air flow channel from at least one air inlet to at least one exhaust port, for blowing outdoor air downward into the indoor space.

[0015] To further understand the present invention, preferred embodiments are given below, and together with the accompanying drawings, the specific components of the present invention and the effects achieved are described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic three-dimensional appearance diagram of a first embodiment of the present invention.

[0017] Figure 2 for Figure 1 Side profile of .

[0018] Figure 3 FIG. 4 is a correlation curve diagram of the total window opening ratio (Rw) and the air flow rate (Qw,t) sucked from the air inlet according to the first embodiment of the present invention.

[0019] Figure 4 1 is a line graph showing the correlation between the height (H) of the elongated groove and the width (L) of the elongated groove in the short direction of the elongated groove according to the present invention.

[0020] Figure 5 This is a schematic diagram of the first embodiment of the present invention in use.

[0021] Figure 6 It is a side sectional view of a second embodiment of the present invention.

[0022] Figure 7 It is a side cross-sectional view of another implementation of the air flow control plate of the second embodiment of the present invention.

[0023] Figure 8 It is a side sectional view of a third embodiment of the present invention.

[0024] Figure 9 It is a bottom cross-sectional view of a third embodiment of the present invention.

[0025] Explanation of the accompanying numbers: 1-factory heat dissipation structure; 2-factory building; 21-roof; 22-first side wall; 23-third side wall; 24-second side wall; 25-fourth side wall; 26-indoor space; 3-long platform; 31-first side; 32-second side; W-partition; 33-lower working area; 4-air inlet; 5-exhaust port; H1-exhaust center height of exhaust port; H2-center height of air inlet; H3-top height of air inlet; 6-air flow control plate; 61-first vertical side edge; 62-second vertical side edge; 63-elongated slot; L-short direction width of elongated slot; H-height of elongated slot; 64-first flat plate; 65-second flat plate; 7-blowing pipe; 71-air outlet. DETAILED DESCRIPTION

[0026] The present invention relates to a heat dissipation structure for a factory building, wherein a first side wall of the factory building is parallel to a second side wall, and the roof and the four side walls collectively frame an indoor space. The lower half of the first side wall is provided with at least one transversely extending air inlet, and the lower half of the second side wall is provided with at least one transversely extending exhaust port, so that after cool air is input through the at least one air inlet, hot air in the indoor space is discharged outward through the at least one exhaust port. The heat dissipation structure for the factory building primarily comprises a plurality of airflow control plates, which are arranged at intervals with the at least one air inlet facing the at least one exhaust port. The plurality of airflow control plates are elongated plates extending downward from the roof, and each of the plurality of airflow control plates forms an elongated slot, wherein the long direction of the slot is parallel to the first side wall, the short direction of the slot is width L, and the height of the slot is H, where H is ≥ 0.1L.

[0027] See also Figures 1 to 5 As shown, this is a preferred embodiment of the factory heat dissipation structure 1 of the present invention, designed for installation within and on various walls of a factory building 2. Factory building 2 can be a factory, but it can also be a farm building such as a chicken coop or pigsty. Factory building 2 includes a roof 21 and a first side wall 22, a third side wall 23, a second side wall 24, and a fourth side wall 25 disposed below and surrounding the roof 21 in sequence. The four side walls form a rectangular shape and, together with the roof 21, define an interior space 26. The first side wall 22 and the second side wall 24 are parallel to each other, while the third side wall 23 and the fourth side wall 25 are parallel to each other.

[0028] The factory heat dissipation structure 1 of the present invention primarily comprises a long platform 3, a plurality of air inlets 4, a plurality of exhaust ports 5, and a plurality of airflow control panels 6. The long platform 3 is suspended horizontally within the interior space 26 of the factory building 2. Along its short length, the long platform 3 has a first side 31 and a second side 32 that are parallel to each other. The first side 31 is connected to the inner surface of the first side wall 22, while the second side 32 is spaced apart from the inner surface of the second side wall 24 by a gap W, thereby forming a lower work area 33 below the long platform 3.

[0029] A plurality of air inlets 4 are arranged in a rectangular array and extend horizontally in the lower half of the first side wall 22 below the long platform 3. The air inlets 4 are openable windows, which allow air outside the factory 2 to enter the lower working area 33 of the factory 2. In practice, the air inlets 4 can also be a single horizontal window or a double row of horizontal windows, which can also allow air outside the factory 2 to enter the indoor space 26 of the factory 2. As for the air flow rate (Qw,t) sucked into the factory 2 from the air inlets 4, it is related to the size of the total window opening ratio (Rw). Figure 3As shown, the total window ratio (Rw) = the total opening area of ​​the plurality of air inlets 4 / the area of ​​the first side wall 22. The total window ratio (Rw) ranges from 20% to 100%. In practice, the total window ratio (Rw) is preferably between 30% and 100%. When the total window ratio (Rw) is greater than 20%, the higher the total window ratio (Rw), the better. For example, when Rw > 30%, the air flow rate (Qw,t) drawn into the factory building 2 through the windows will approach a maximum constant value. This means that the pressure loss coefficient of the window opening approaches a smaller saturation value when Rw > 30%. Conversely, when the total window ratio (Rw) is below 20%, or even below 10%, a recirculation zone will form indoors, preventing the hot air in the indoor space 26 from being effectively discharged through the plurality of exhaust vents 5.

[0030] A plurality of exhaust vents 5 extend laterally from the lower half of the second sidewall 24. The exhaust vents 5 are fans. In practice, the exhaust vents 5 can also be lateral outlets connected to exhaust equipment. The exhaust center height H1 of the plurality of exhaust vents 5 is between the center height H2 and the top height H3 of the plurality of air inlet 4. That is, the exhaust center height H1 of the plurality of exhaust vents 5 must be higher than the center height H2 of the plurality of air inlet 4 and lower than the top height H3 of the plurality of air inlet 4. This allows cool air to be drawn into the indoor space 26 through the plurality of air inlet 4, while hot air is discharged through the plurality of exhaust vents 5.

[0031] The plurality of airflow control panels 6 are elongated pieces extending downward from the roof 21. In practice, the airflow control panels 6 can be made of solid board, fabric, or plastic sheeting. The airflow control panels 6 have parallel first and second vertical side edges 61 and 62 along their lengths. The first vertical side edge 61 is adjacent to the inner surface of the third side wall 23, and the second vertical side edge 62 is adjacent to the inner surface of the fourth side wall 25. The bottom edge of the airflow control panels 6 is elevated above the level of the elongated platform 3. The plurality of airflow control panels 6 are spaced apart, with the at least one air inlet 4 facing the at least one air outlet 5, forming an elongated slot 63 between the plurality of airflow control panels 6. The elongated slot 63 extends parallel to the first and second side walls 22 and 24. When the overhead crane is accommodated or mounted within the elongated slot 63, the crane's chain can move horizontally along the length of the slot 63.

[0032] The width of the long groove 63 in the short direction is L, and the height of the long groove 63 is H, where H≥0.1L. In this way, when workers, heat-generating machines, or livestock such as chickens or pigsties are distributed in the lower working area 33, the cold air outside the factory building 2 is input into the indoor space 26 through the plurality of air inlets 4, and drives the hot air in the indoor space 26 to be discharged outwards through the plurality of exhaust ports 5. Since the air flow speed generated in the lower working area 33 below the long platform 3 is greater than the flow speed above the long platform 3, a high-speed zone and a low-speed zone will be formed respectively. A fan-shaped expanding mixing layer will be formed at the boundary between the high-speed zone and the low-speed zone. This mixing layer is blocked by the long platform 3, which allows the hot air above the long platform 3 to form a reflux bubble in the elongated groove 63 and is mostly confined in the elongated groove 63; while a small part of the hot air above the long platform 3 and most of the hot air in the lower working area 33 will flow rapidly through the air in the high-speed zone and be discharged from the first side wall 22 toward the second side wall 24 to the outside of the factory building 2, so as to reduce the temperature of the lower working area 33. Among them, Figure 4 As shown, due to the range limitation of the short-direction width L of the elongated groove 63 and the height H of the elongated groove 63, that is, meeting the restriction condition of H≥0.1L, the length of the reflux bubble in the elongated groove 63 can be roughly equal to the short-direction width L of the elongated groove 63. In this way, the airflow will not be deflected too much into the elongated groove 63, thereby excessively reducing the airflow speed in the working area below the elongated groove 63.

[0033] like Figure 6 As shown, this is a second embodiment of the heat dissipation structure 1 for a factory building of the present invention. The difference from the first embodiment is that the bottom edge of the airflow control plate 6 has a first flat plate 64, which extends horizontally toward the second side wall 24. In this way, the short-direction width L of the elongated slot 63 can be adjusted to meet the restriction condition of H ≥ 0.1L. Figure 7 As shown, the bottom edge of the air flow control plate 6 may also have a second flat plate 65, which extends horizontally toward the first side wall 22, so that the air flow control plate 6, the first flat plate 64, and the second flat plate 65 together form an inverted T-shape; or the air flow control plate 6 and the second flat plate 65 form an inverted L-shape. Similarly, the short-direction width L of the elongated slots 63 can be adjusted to meet the restriction condition of H ≥ 0.1L, so that the hot air above the long platform 3 forms a reflow bubble in each elongated slot 63 and is mostly confined within each elongated slot 63; while the small portion of the hot air above the long platform 3 and the majority of the hot air in the lower working area 33 will be discharged to the outside of the factory building 2 through the first side wall 22 toward the second side wall 24 through the rapid and smooth flow of heat dissipation air, thereby reducing the temperature of the lower working area 33.

[0034] like Figure 8 、 Figure 9As shown, this is a third embodiment of the factory building heat dissipation structure 1 of the present invention. This differs from the first embodiment in that a plurality of parallel air blowing pipes 7 are provided in the rear half of the indoor space 26 of the factory building 2, i.e., midway and downstream of the air flow channel from at least one air inlet 4 to at least one exhaust port 5. In practice, a single air blowing pipe 7 may be provided. One end of at least one air blowing pipe 7 is connected to the outside to input ambient or cooled outdoor air. The other end of at least one air blowing pipe 7 is suspended below the elongated slot 63. At least one air blowing pipe 7 is parallel to the first side wall 22 and the second side wall 24, and each air blowing pipe 7 has a plurality of spaced-apart air outlets 71 on its lower wall. This arrangement allows for the cooling of the airflow in the midway and downstream areas of the factory building 2, where the air temperature and pollutant concentration gradually accumulate and rise, by allowing outside air to enter the room, thereby lowering the air temperature and diluting the pollutant concentration in these areas. The air is then discharged through the at least one exhaust port 5.

[0035] Therefore, the present invention has the following advantages:

[0036] 1. The present invention simplifies equipment through the configuration of a "horizontal flow field," allowing for gentle and smooth cooling airflow. Consequently, it not only effectively reduces the exhaust fan speed to save electricity and reduce noise to improve environmental quality, but also provides workers in the lower work area and livestock such as chickens and pigsties with a cool and comfortable environment, thereby improving work or production efficiency and preventing injuries caused by high temperatures.

[0037] 2. The present invention can utilize each elongated slot to separately accommodate or install the top of an overhead crane and other large machines and tools, thereby effectively increasing the available space in the factory and improving work efficiency. Furthermore, since the height of the elongated slot and the width of the elongated slot in the short direction are limited within a certain ratio range, the recirculation bubbles generated by the horizontal flow of air entering the elongated slot can be effectively accommodated, so that the airflow will not deviate too much into the elongated slot, and the horizontal flow of air can smoothly pass over the recirculation bubbles in the elongated slot without excessively reducing the speed, thereby maintaining effective ventilation and heat dissipation effects.

[0038] 3. The present invention can adjust the short-direction width L of the elongated slot to meet the restriction condition of H ≥ 0.1L by respectively disposing a first flat plate and a second flat plate at the bottom edge of each airflow control plate, or disposing both the first flat plate and the second flat plate simultaneously. Therefore, the installation is more flexible.

[0039] 4. The present invention can further provide at least one air blowing pipe at the middle and downstream positions of the air flow channel to input room temperature or cooled air downward. Therefore, it can effectively reduce the air flow temperature and dilute the pollutant concentration in this area, thereby ensuring the ventilation and heat dissipation effect in the overall lower working area.

[0040] In summary, based on the content disclosed above, the present invention can indeed achieve the intended purpose and provide a factory heat dissipation structure that can simplify equipment, effectively reduce the temperature of the working area where machines and personnel operate, save electricity, reduce noise, and effectively increase the usable space in the factory, which is of great value for industrial application.

Claims

1. A heat dissipation structure for a factory building, comprising a roof and a first side wall, a third side wall, a second side wall, and a fourth side wall disposed below the roof and arranged in sequence, the first side wall being parallel to the second side wall, and the roof, the first side wall, the third side wall, the second side wall, and the fourth side wall collectively enclosing an indoor space; at least one air inlet extending laterally is provided on a lower half of the first side wall, and at least one air outlet extending laterally is provided on a lower half of the second side wall, for cool air to be input through the at least one air inlet and for hot air to be discharged through the at least one air outlet; characterized in that: The factory building heat dissipation structure includes a plurality of air flow control plates, which are arranged at intervals in the direction from the at least one air inlet to the at least one exhaust port. The plurality of air flow control plates are respectively long plates extending downward from the roof. An elongated groove is formed between the plurality of air flow control plates. The long direction of the elongated groove is parallel to the first side wall, and the short direction width of the elongated groove is L. The height of the elongated groove is H, and H≥0.1L.

2. The heat dissipation structure of a factory building according to claim 1, characterized in that: The airflow control plate has a first vertical side edge and a second vertical side edge in parallel in the long direction. The first vertical side edge is adjacent to the inner wall surface of the third side wall, and the second vertical side edge is adjacent to the inner wall surface of the fourth side wall.

3. The heat dissipation structure of a factory building according to claim 1 or 2, characterized in that: The total window opening ratio of the at least one air inlet is the total opening area of ​​the at least one air inlet / the area of ​​the first side wall, and the total window opening ratio is between 20% and 100%; the exhaust center height position of the at least one exhaust port is between the center height and the top height position of the at least one air inlet.

4. The heat dissipation structure of a factory building according to claim 1 or 2, characterized in that: It also includes a long platform, which has a first side and a second side parallel to each other in the short direction, the first side is connected to the inner wall surface of the first side wall, and there is a gap between the second side and the inner wall surface of the second side wall; the at least one air inlet is opened in the lower half of the first side wall below the long platform.

5. The heat dissipation structure of a factory building according to claim 4, characterized in that: The bottom edge height of the air flow control plate is higher than the horizontal height of the long platform.

6. The heat dissipation structure of a factory building according to claim 1, characterized in that: The bottom edge of the air flow control plate has a first flat plate, and the first flat plate extends horizontally in a direction toward the second side wall.

7. The heat dissipation structure of a factory building according to claim 1 or 6, characterized in that: The bottom edge of the air flow control plate has a second flat plate, and the second flat plate extends horizontally in a direction toward the first side wall.

8. The heat dissipation structure of a factory building according to claim 1, characterized in that: It also includes at least one blowing pipe, which is parallel to the second side wall and located in the middle and downstream of the air flow channel from the at least one air inlet to the at least one exhaust port, for outdoor air to be blown downward into the indoor space.

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