TWI773240B - Heat dissipation structure for factory building (3) - Google Patents

Abstract

0.1L；藉此，即可讓廠房外之空氣經由至少一進氣口輸入下工作區內，再順暢的由至少一排氣口向外排出以進行散熱。 A heat dissipation structure for a factory building, comprising a first platform, the first end of the first platform is connected to the inner wall of the first side wall, and the lower half of the first side wall under the first platform has at least one air inlet extending laterally , the lower half of the second side wall has at least one exhaust port extending laterally, and the center height position of the exhaust port of the at least one exhaust port is between the center height and the top height position of the at least one air inlet port; The board is positioned between the roof and the first platform, and there is at least one rectangular groove on the surface of the partition board. The long direction of the rectangular groove is parallel to the first side wall, the height of the rectangular groove is H, and the width of the rectangular groove in the short direction is L. , H

0.1L; in this way, the air outside the workshop can be input into the lower working area through at least one air inlet, and then smoothly discharged out through at least one exhaust port for heat dissipation.

Description

Heat dissipation structure of workshop (3)

This creation is about a heat dissipation structure of a factory building, especially a kind of crane or other large equipment that can be configured according to needs, and can effectively eliminate the heat in the factory building.

For small and medium-sized workshops with a height of less than 6m, in order to enhance the heat dissipation effect, a plurality of spinning fans are generally installed on the roof of the workshop to discharge hot air and block the rain; or hang them above the workers in the working area of the workshop A series of fans, or a series of fans placed below the height of the person, in the hope of expelling hot air and blowing the person to dissipate heat. For a large factory building, such as a factory building with a height of 15m, a width of 50m, and a length of 200m, the natural ventilation used is usually a raised Prince Building above the factory building, with open sides on both sides of the Prince Building. Windows, the work area under the workshop has side windows for air intake, and the roof of the workshop is especially raised to reduce the impact of radiant heat from the roof.

However, because the traditional heat dissipation method does not deal with the details of the fluid flow, it is easy to form a large area of recirculation area and/or low speed area in the room, and the concentration of pollutants in these areas is relatively high; Therefore, it is intuitive to increase the air volume or increase the number of fans, but it is ineffective, consumes energy, and increases noise, and it is uncomfortable for the operator to be impacted by high-speed airflow for a long time. Furthermore, due to insufficient opening area or poor distribution of the side windows of the Prince Building or the roof spin fan, most of the heat in the factory building cannot be effectively removed, and large backflow bubbles will be formed inside the factory building, which will roll the hot air from the top to the bottom. work area, make The temperature of the working area rises. At this time, the air outside the factory building is pulled by the buoyancy of the hot air inside the factory building. After entering the side windows on both sides below the factory building, it will quickly turn upward due to the influence of the large backflow bubble. Therefore, except for a short distance near the windows on both sides, the workers felt a little cool, most of the interior of the workshop was stuffy. Even if a large number of fans are used to blow, the hot air is only sucked from the back of the fan, and then blown out from the front of the fan, which still cannot solve the problem because the temperature of most of the working areas below rises, which causes the discomfort of the operators and reduces the work efficiency. There are even occupational injuries.

Therefore, for example, the "heat dissipation structure of the factory building" of the Republic of China Invention Bulletin No. I659145 proposes a solution, which is mainly based on the installation of four side walls under a roof with an air outlet, and the first and second platforms are installed. In the factory building, the first and second side walls of the four side walls are parallel to each other, and the lower half of the first and second side walls are respectively provided with air inlets; the first end of the first platform is connected to the first side wall, The upper and lower areas are divided into a first upper return area and a first lower working area; the first end of the second platform is connected to the second side wall, and the upper and lower areas are divided into a second upper return area and a second lower working area; and A space is formed between the second end of the first platform and the second end of the second platform. In this way, the air outside the workshop can be entered into the first and second lower working areas through the two opposite air inlets respectively, and then the hot air can flow upward through the gap between the two platforms through thermal buoyancy. , which is discharged from the air outlet to dissipate heat.

However, the workshop structure in which an interval is formed between two opposite platforms, and the lower half of the two side walls connected to the two opposite platforms are respectively provided with air inlets. , and through the action of thermal buoyancy to achieve the effect of heat dissipation, but the structure of this "dual platform" is more complicated, and due to the small width of the gap between the two platforms, for the height greater than the "double platform" For overhead cranes or other large-scale equipment with a height of "platform", the number and position of their placement will be greatly limited; and the traditional method of increasing the air volume or increasing the number of fans for heat dissipation inside the factory, not only the effect is not good good, consumes energy, and increases noise. In view of this, in order to provide a structure that is different from the conventional technology and improve the above-mentioned shortcomings, the creator has accumulated many years of experience and continuous research and development improvement, so this creation came into being.

One of the purposes of this creation is to provide a factory building heat dissipation structure, so as to solve the problem that the overhead crane or other large equipment cannot be installed in the required position in the conventional factory building. As a result, the work efficiency is reduced, and even occupational injuries are caused; and the problem of increasing the air volume or increasing the number of fans, which consumes energy and increases noise, can provide an effective heat dissipation structure, so that the crane or other large equipment can operate according to the actual situation. The workshop is configured as required to improve work efficiency; the temperature of the work area is greatly reduced, so that the workers in the work area can work in a cool and comfortable environment, thereby improving work efficiency and avoiding occupational injuries caused by high temperature environments; and Allows the cooling airflow to flow smoothly to save power consumption and reduce noise, thereby improving the quality of the operating environment.

0.1L。 In order to achieve the above purpose, the workshop of this creation includes a roof and a first side wall, a third side wall, a second side wall and a fourth side wall which are arranged under the roof and are successively arranged in sequence. The roof and each side wall are common. The frame encloses an indoor space, and the first side wall is parallel to the second side wall; and the heat dissipation structure of the workshop mainly includes a first platform, at least one air inlet and at least one exhaust outlet. The first platform is located in the indoor space of the factory. The first platform has a first end and a second end opposite to the first end. The first end of the first platform is connected to the inner wall of the first side wall for supplying The upper and lower areas are divided into an upper return area and a lower working area, and there is a gap between the second end of the first platform and the inner wall of the second side wall; at least one air inlet is opened in the first The lower half of the first side wall below the platform; and at least one exhaust port is opened in the lower half of the second side wall in a laterally extending manner, and the height of the exhaust center of the at least one exhaust port is between at least one inlet Between the height of the center of the air port and the height of the top, cold air is inputted from at least one air inlet, and hot air is discharged from at least one exhaust port; and a partition is positioned between the roof and the first platform to separate There is at least one rectangular groove on the board surface, the long direction of the rectangular groove is parallel to the first side wall, the height of the rectangular groove is H, the width of the rectangular groove in the short direction is L, H

0.1L.

During implementation, the first platform has a third end and a fourth end opposite to the third end, the third end is connected to the inner wall of the third side wall, and the fourth end is connected to the inner wall of the fourth side wall.

During implementation, this creation further includes a plurality of vents, which are opened between the partitions and the roof to discharge the hot air between the partitions and the roof.

During implementation, the partition plate has a first end and a second end opposite to the first end, the first end of the partition plate is connected to the inner wall surface of the first side wall, and the second end of the partition plate is connected to the second side wall inside wall.

During implementation, the partition plate has a third end and a fourth end opposite to the third end, the third end is connected to the inner wall of the third side wall, and the fourth end is connected to the inner wall of the fourth side wall.

In order to further understand the creation, a preferred embodiment is given below, and the specific components of the creation and the effects achieved are described in detail as follows in conjunction with the drawings and drawing numbers.

1: Plant heat dissipation structure

2: Workshop

21: Roof

22: First side wall

23: Third Side Wall

24: Second Side Wall

25: Fourth Side Wall

26: Interior Space

27: Vents

3: The first platform

31,61: First end

32,62: Second end

33,63: third end

34,64: Fourth end

W: interval

35: Upper reflow area

36: Lower workspace

4: Air intake

5: exhaust port

H1: The height of the exhaust center of multiple exhaust ports

H2: Center height of multiple air inlets

H3: Top height of multiple air inlets

6: Partition

65: Rectangular slot

H: the height of the rectangular groove

L: The width in the short direction of the rectangular groove

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

[Fig. 2] is a side sectional view of Fig. 1. [Fig.

[Figure 3] is a line graph of the correlation between the height (H) of the rectangular groove and the width (L) in the short direction of the rectangular groove in this creation.

[FIG. 4] is a preferred embodiment of the present creation using CFD computer program to analyze and calculate the results, and the velocity vector and streamline distribution diagram at the x-z section.

Please refer to FIG. 1 and FIG. 2 , which are a preferred embodiment of a heat dissipation structure 1 of a workshop for creating a workshop 2 for installation in the interior of a workshop 2 and on each wall. The 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 which are arranged below the roof 21 and continuously surround in sequence. The wall frame encloses a rectangle, and together with the roof 21 frame an indoor space 26. The first side wall 22 and the second side wall 24 are parallel to each other, and the third side wall 23 and the fourth side wall 25 are parallel to each other.

The heat dissipation structure 1 of the creative workshop mainly includes a first platform 3 , a plurality of air inlets 4 , a plurality of exhaust ports 5 and a partition 6 . The first platform 3 is horizontally suspended in the indoor space 26 of the plant 2 , and the first platform 3 has a first end 31 , a second end 32 opposite to the first end 31 , a third end 33 and an opposite end 31 . Towards a fourth end 34 of the third end 33 , the first end 31 of the first platform 3 is connected to the inner wall of the first side wall 22 , and there is a space between the second end 32 and the inner wall of the second side wall 24 . A space W, the third end 33 is connected to the inner wall of the third side wall 23, and the fourth end 34 is connected to the inner wall of the fourth side wall 25, so as to separate the upper and lower areas of part of the indoor space 26 into an upper return area 35 and the lower working area 36 , the upper reflow area 35 is located between the bottom surface of the partition 6 and the top surface of the first platform 3 .

A plurality of air inlets 4 extend laterally in a rectangular array on the lower half of the first side wall 22 below the first platform 3, and the air inlets 4 are openable windows, so that the air outside the factory building 2 can enter the factory building. 2 in the lower work area 36. In practice, the air inlet 4 can also be a single horizontal window or a horizontal window with upper and lower rows, which can also allow the air outside the factory building 2 to enter the indoor space 26 of the factory building 2 . The plurality of exhaust ports 5 are laterally extended on the lower half of the second side wall 24, and the exhaust ports 5 are fans. When applying, the exhaust port 5 can also be a horizontal air outlet connected to the air extraction equipment, and the position of the exhaust center height H1 of the plurality of exhaust ports 5 is between the center height H2 and the top height H3 position of the plurality of air intake ports 4. That is, the position of the exhaust center height H1 of the plurality of exhaust ports 5 must be higher than the position of the center height H2 of the plurality of air inlet ports 4, and at the same time lower than the position of the top height H3 of the plurality of air inlet ports 4.

The partition plate 6 is positioned between the lower part of the roof 21 and the first platform 3 , and the partition plate 6 has a first end 61 , a second end 62 opposite to the first end 61 , a third end 63 and a reverse At a fourth end 64 of the third end 63, the first end 61 of the partition 6 is connected to the inner wall of the first side wall 22, the second end 62 is connected to the inner wall of the second side wall 24, and the third end 63 The fourth end 64 is connected to the inner wall of the third side wall 23 , and the fourth end 64 is connected to the inner wall of the fourth side wall 25 . When implemented, the partition board 6 is a ceiling with a high thermal insulation coefficient, so as to block the radiant heat radiated downward by the roof 21, so that the temperature downstream of the working area 36 under the partition board 6 will not rise; A plurality of vents 27 are further opened on the side walls between the panels 6 , so as to discharge the hot air between the roof 21 and the partitions 6 .

0.1L；長方形槽65之長方向平行第一側牆22、第二側牆24，藉以在一天車之頂部容納或安裝於長方形槽65內時，讓天車之吊鍊可以沿著長方形槽65之長方向水平移動，而上述天車之運行範圍係限制在廠房2內的單一區塊內，實施時，長方形槽65亦可依實際需要而在隔板6之板面上配置複數個，且同樣平行第一側牆22、第二側牆24。 There is a rectangular groove 65 on the plate surface of the partition plate 6, the height of the rectangular groove 65 is H, and the width of the rectangular groove 65 in the short direction is L, H

0.1L; the long direction of the rectangular groove 65 is parallel to the first side wall 22 and the second side wall 24, so that when the top of the crane is accommodated or installed in the rectangular groove 65, the hanging chain of the crane can follow the rectangular groove 65. The long direction of the crane moves horizontally, and the operating range of the above-mentioned crane is limited to a single block in the workshop 2. During implementation, a plurality of rectangular grooves 65 can also be arranged on the board surface of the partition 6 according to actual needs, and Similarly, the first side wall 22 and the second side wall 24 are parallel.

0.1L的限制條件，即可讓長方形槽65內的迴流泡長度大致達到長方形槽65的短方向寬度(L)，如此一來，即不致於讓氣流往長方形槽65內偏入太多，而過度降低長方形槽65下方工作區的氣流速度。 Thereby, when workers or machines that generate heat are distributed in the lower work area 36, the cold air outside the workshop 2 is input into the indoor space 26 through the plurality of air inlets 4, and the hot air in the indoor space 26 is driven by the plurality of air inlets 4. Since the air flow velocity generated in the working area 36 below the first platform 3 is greater than the flow velocity of the return area 35 above the top surface of the first platform 3, a high-speed area will be formed respectively. and a low-speed area, and a fan-shaped mixed layer is formed at the boundary between the high-speed area and the low-speed area. The mixed layer is blocked by the first platform 3, allowing the hot gas above the first platform 3 to form in the upper reflow area 35 The reflow bubbles are mostly confined in the upper reflow area 35; while a small part of the hot air above the first platform 3 and most of the hot air in the lower working area 36 will flow rapidly through the air in the high-speed area, from the The side wall 22 is discharged from the outside of the workshop 2 in the direction toward the second side wall 24 , so as to reduce the temperature of the lower working area 36 . In addition, as shown in FIG. 2 and FIG. 3 , due to the limitation of the height (H) of the rectangular groove 65 and the width (L) of the rectangular groove 65 in the short direction of the separator 6 , that is, it conforms to H

The limit of 0.1L can make the length of the backflow bubble in the rectangular groove 65 approximately reach the short direction width (L) of the rectangular groove 65, so that the airflow will not be allowed to deviate too much into the rectangular groove 65, and The airflow velocity in the work area below the rectangular slot 65 is excessively reduced.

Based on the structure of the above preferred embodiment, this creation is simulated and tested with the following parameters in a factory building with a height of 15m, a width of 36m and a length of 108m, and is analyzed and calculated by the computer program of Computational Fluid Dynamics (CFD).

Total number of windows (air intakes): 24, 1 column

The distance between the upper edge and the lower edge of the window (multiple air intakes): 1.8m

Window (air inlet) inlet wind speed: 2.48m/s

Length of the first platform: 5m

Total number of fans (exhaust ports): 18, 1 row

Air volume of a single fan (exhaust port): 700CMM

Axial wind speed at the outlet of a single fan (exhaust port): 10.3m/s

The total air volume of multiple fans (exhaust ports): 12600CMM

Height of rectangular groove (H): 6m, 7m, 8m

Width (L) in the short direction of the rectangular groove: 50m

After analyzing the calculation results by CFD computer program, the velocity vector and streamline distribution diagram are shown in the xz section in Figure 4. The arrows represent the velocity vectors, and the curves along the tangential direction of the velocity vectors represent streamlines; the velocity vectors and streamlines of the lower working area 36 show almost parallel flow from left to right, and do not produce recirculation zones or low-velocity zones. Therefore, when the roof 21 is assigned a temperature of 60°C, the temperature inside the roof 21 is assigned as 60°C, and the temperature of the atmosphere is assigned as 29°C, the above-mentioned distribution of the velocity vector and the streamline can prevent the high temperature in the rectangular groove 65 The air is drawn into the lower working area 36 to maintain the high-speed airflow downstream of the lower working area 36, so that the airflow temperature of the working area 36 below 3 meters from the floor is approximately equal to the atmospheric temperature, so as to effectively reduce the air flow in the lower working area 36. temperature.

Therefore, this creation has the following advantages:

1. This creation can block the hot air above the workshop and roll down to the lower working area through a gentle and smooth airflow, so that the temperature of the lower working area can be greatly reduced. Therefore, it can not only reduce the speed of the exhaust fan to save power consumption and reduce noise It is produced to improve the quality of the working environment, and enables the workers in the lower working area to work in a cool and comfortable environment, so as to improve work efficiency and avoid occupational injuries caused by high temperature environments.

2. In this work, the rectangular slot of the partition can be used to accommodate or install the top of the crane or other large equipment, so it can effectively increase the usable space in the workshop. And because the rectangular slot can be set on the partition plate, the crane or other large equipment can be configured separately according to the actual needs, so as to improve the work efficiency; in addition, due to the height of the rectangular slot and the short direction The width is limited to a certain ratio, which can effectively accommodate the backflow bubbles generated by the airflow below the partition entering the rectangular slot, so as not to allow the airflow to deviate too much into the rectangular slot, and let the airflow under the partition It can smoothly cross the backflow bubbles in the rectangular groove without excessively reducing the airflow speed to maintain effective ventilation and heat dissipation.

To sum up, according to the content disclosed above, this creation can indeed achieve the expected purpose, providing a system that can effectively reduce the temperature of the work area where machines and personnel are operating, save electricity, reduce noise and effectively increase the usable space in the workshop. The heat dissipation structure of the workshop is of great value for industrial use, and an invention patent application is filed in accordance with the law.

1: Plant heat dissipation structure

2: Workshop

21: Roof

22: First side wall

24: Second Side Wall

25: Fourth Side Wall

26: Interior Space

27: Vents

3: The first platform

31,61: First end

32,62: Second end

W: interval

35: Upper reflow area

36: Lower workspace

4: Air intake

5: exhaust port

H1: The height of the exhaust center of multiple exhaust ports

H2: Center height of multiple air inlets

H3: Top height of multiple air inlets

6: Partition

65: Rectangular slot

H: the height of the rectangular groove

L: The width in the short direction of the rectangular groove

Claims (5)

A heat dissipation structure for a factory building, the factory building includes a roof and a first side wall, a third side wall, a second side wall and a fourth side wall arranged under the roof and successively arranged in sequence, the roof, the The first side wall, the third side wall, the second side wall and the fourth side wall together frame an indoor space, and the first side wall is parallel to the second side wall; the factory heat dissipation structure includes: a first side wall a platform, which is located in the indoor space of the factory, the first platform has a first end and a second end opposite to the first end, the first end of the first platform is connected to the first side wall The inner wall is for the upper and lower areas to be divided into an upper return area and a lower working area, there is a space between the second end of the first platform and the inner wall of the second side wall; at least one air inlet , which is opened in the lower half of the first side wall under the first platform in a transversely extending manner; at least one exhaust port is opened in the lower half of the second side wall in a transversely extending manner, and the The center height position of the exhaust port of at least one air outlet is between the center height and the top height position of the at least one air inlet port, and cold air is input from the at least one air inlet port and then discharged from the at least one air outlet port. hot air; and a partition, which is positioned between the roof and the first platform, the board surface of the partition has at least one rectangular groove, the long direction of the rectangular groove is parallel to the first side wall, and the rectangular The height of the slot is H, the width of the rectangular slot in the short direction is L, H

0.1L. The plant heat dissipation structure of claim 1, wherein the first platform has a third end and a fourth end opposite to the third end, the third end is connected to the inner wall of the third side wall, the The fourth end is connected to the inner wall of the fourth side wall. The heat dissipation structure for a factory building as claimed in claim 1, further comprising a plurality of ventilation holes, the plurality of ventilation holes are opened between the partition board and the roof for discharging the hot air between the partition board and the roof. As claimed in claim 1, 2 or 3, the heat dissipation structure for a factory building, wherein the partition plate has a first end and a second end opposite to the first end, and the first end of the partition plate is connected to the first sidewall The second end of the partition is connected to the inner wall of the second side wall. The heat dissipation structure of claim 4, wherein the partition plate has a third end and a fourth end opposite to the third end, the third end is connected to the inner wall surface of the third side wall, and the fourth end The end is connected to the inner wall of the fourth side wall.

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