Current sharing air supply device

Abstract

This utility model relates to the technical field of air purification equipment and discloses a flow equalization air supply device, including a static pressure box, a buffer plate, and a flow equalization structure. One end of the static pressure box has an air inlet, and the other end has an air outlet. A buffer plate with multiple ventilation holes is installed inside the static pressure box. The flow equalization structure is located at the air outlet, and its bottom and circumferential sidewalls are provided with flow equalization holes communicating with the interior of the static pressure box. Gas entering the static pressure box from the air inlet is evenly distributed through the buffer plate and then outputs through the flow equalization holes on the bottom and circumferential sidewalls of the flow equalization structure. This flow equalization air supply device ensures imperceptible airflow uniformity and a large air outlet area. Furthermore, this device eliminates the need for a flow equalization chamber in a constant temperature and humidity laboratory, reducing the special requirements for floor height and space, thereby saving energy.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, and in particular to a flow equalization air supply device. Background Technology

[0002] A constant temperature and humidity laboratory maintains the required temperature and humidity environment through specialized equipment and facilities. Currently, there are two main air circulation methods in constant temperature and humidity laboratories: top-supply and bottom-return, and top-supply and bottom-column-return. The top-supply method is further divided into diffuser-type air supply and aluminum alloy micro-perforated plate air supply. Both of these air circulation methods and air supply forms have the following disadvantages:

[0003] 1. The diffuser delivers a high airflow velocity, which is extremely uncomfortable and interferes with the testing of the experimental platform.

[0004] 2. For aluminum alloy microperforated plates, an air distribution chamber needs to be set up. That is, an air distribution chamber is formed between the insulation layer of the constant temperature and humidity laboratory and the aluminum alloy microperforated plate. When selecting air conditioning equipment, the height of the laboratory space is increased, and the load of the equipment selection needs to be considered for redundancy. During operation, it is also necessary to ensure that the temperature and humidity in the air distribution chamber meet the standards, thereby ensuring that the temperature and humidity in the laboratory meet the standards. Utility Model Content

[0005] The purpose of this invention is to propose a uniform air supply device that solves the technical problems of existing technologies, such as high air velocity caused by diffusers, extreme discomfort, interference with the detection of experimental surfaces, and the need to set up an air supply uniform chamber to increase the height of the laboratory space when supplying air through aluminum alloy micro-perforated plates.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a uniform air supply device, which is installed on the insulated roof of a constant temperature and humidity laboratory. The uniform air supply device includes:

[0008] A static pressure box, wherein an air inlet is provided at one end and an air outlet is provided at the other end;

[0009] A buffer layer is provided inside the static pressure box, and the buffer layer is provided with multiple ventilation holes;

[0010] A flow equalization structure is provided at the air outlet. The bottom and circumferential sidewalls of the flow equalization structure are provided with flow equalization holes that communicate with the interior of the static pressure box. The gas entering the static pressure box from the air inlet is buffered by the buffer plate and then output from the flow equalization holes at the bottom and circumferential sidewalls of the flow equalization structure.

[0011] The static pressure chamber of this flow equalization air supply device receives air through an inlet and exits through an outlet. A buffer plate is installed inside the static pressure chamber, and a flow equalization structure is installed at the outlet. The bottom and circumferential sidewalls of the flow equalization structure have flow equalization holes that communicate with the interior of the static pressure chamber. The air entering the static pressure chamber through the inlet is buffered and equalized by the buffer plate before exiting through the flow equalization holes at the bottom and circumferential sidewalls of the flow equalization structure. This dual flow equalization through the buffer plate and the flow equalization structure ensures imperceptible airflow uniformity at the outlet. This flow equalization air supply device eliminates the need for a flow equalization chamber in a constant temperature and humidity laboratory, reducing the special requirements for floor height and space, and thus saving energy.

[0012] As a preferred embodiment of the above-mentioned flow equalization and air supply device, the flow equalization structure includes:

[0013] A base plate, wherein a plurality of flow equalization holes are evenly distributed on the base plate;

[0014] The side plate is arranged circumferentially on the bottom plate, and a plurality of flow equalization holes are provided on the side plate. The bottom plate and the side plate form a box structure with an opening at the top. The side plate is connected to the static pressure box, and the opening is connected to the air outlet of the static pressure box.

[0015] The flow equalization structure discharges air downwards through the flow equalization holes on the bottom plate and laterally through the flow equalization holes on the side plate, thereby enabling air to be discharged from the bottom and circumferential sides of the static pressure box. The above-mentioned flow equalization structure is simple in structure and easy to manufacture.

[0016] As a preferred embodiment of the above-mentioned flow equalization and air supply device, the side plate includes a side plate body and a connecting plate. The bottom of the side plate body is connected to the bottom plate, and the top of the side plate body is connected to the connecting plate. The side plate body is provided with a plurality of flow equalization holes. The connecting plates of each side plate are connected to form the opening, and each connecting plate is connected to the static pressure box.

[0017] The side plate exhausts air through the flow equalization holes on the side plate body, and can be easily connected to the static pressure box through the connecting plate.

[0018] As a preferred embodiment of the above-mentioned flow equalization and air supply device, the side plate body gradually tilts towards the center of the static pressure box from the end connected to the bottom plate to the end connected to the connecting plate in the vertical direction, and the angle formed between the side plate body and the bottom plate is an acute angle.

[0019] The side panel is tilted and forms an acute angle with the base plate, which allows the air to be blown towards the insulation layer of the constant temperature and humidity laboratory, making the air outlet range wider and avoiding dead corners between the insulation layer and the static pressure box where the air cannot be blown.

[0020] As a preferred embodiment of the above-mentioned flow equalization and air supply device, the included angle between the side plate and the bottom plate is 30°-50°.

[0021] The aforementioned angle ensures that the airflow within the equalization structure can be output smoothly without causing any air blockage; it also ensures that airflow between the insulation layer and the static pressure chamber in the constant temperature and humidity laboratory can be directed without creating any dead zones.

[0022] As a preferred embodiment of the above-mentioned flow equalization and air supply device, the included angle between the side plate and the bottom plate is 45°.

[0023] The aforementioned angle can better balance the smooth outward airflow of the flow equalization structure and the airflow to the area between the insulation layer and the static pressure chamber of the constant temperature and humidity laboratory.

[0024] As a preferred embodiment of the above-mentioned flow equalization and air supply device, the connecting plate is detachably connected to the static pressure box.

[0025] The connecting plate and the static pressure box are detachably connected to facilitate the disassembly, assembly, and cleaning of the flow equalization structure.

[0026] As a preferred embodiment of the above-mentioned flow equalization and air supply device, the connecting plate is provided with a plurality of locking protrusions, and the inner wall of the static pressure box is provided with a locking member, wherein the locking protrusions can be locked with the locking member.

[0027] The connecting plate is provided with a locking protrusion, and the inner wall of the static pressure box is provided with a locking component. The locking protrusion and the locking component engage with each other to realize the detachable connection between the connecting plate and the static pressure box. This structure is simple and facilitates the assembly and disassembly of the flow equalization structure.

[0028] As a preferred embodiment of the above-mentioned flow equalization and air supply device, the buffer plate is detachably installed inside the static pressure box.

[0029] The buffer layer can be detachably installed inside the static pressure chamber, facilitating the removal, assembly, and cleaning of the buffer layer.

[0030] As a preferred embodiment of the above-mentioned flow equalization and air supply device, the buffer plate includes two buffer plates, which are hinged together to be folded or unfolded; the inner wall of the static pressure box is provided with a limiting part; when the buffer plate is folded, it can enter the static pressure box through the air outlet; when the buffer plate is unfolded, it can be supported by the limiting part.

[0031] The two buffer plates of the buffer layer are hinged together and can be folded into the static pressure box. They can also be unfolded and supported on the limiting part inside the static pressure box. The assembly and disassembly of the buffer layer are relatively simple.

[0032] The beneficial effects of this utility model are:

[0033] The air equalization and distribution device proposed in this utility model introduces air in through an air inlet and air out through an air outlet. A buffer plate is installed inside the static pressure box at the air inlet, and an air equalization structure is installed at the air outlet of the static pressure box. The bottom and circumferential sidewalls of the air equalization structure are provided with air equalization holes that communicate with the interior of the static pressure box. The gas entering the static pressure box from the air inlet flows evenly through the buffer plate and then exits through the air equalization holes at the bottom and circumferential sidewalls of the air equalization structure. Through the double air equalization of the buffer plate and the air equalization structure, the air equalization at the outlet is ensured to be imperceptible. This air equalization and distribution device eliminates the need to set up an air equalization chamber in a constant temperature and humidity laboratory, reducing the special requirements for floor height and space, and thus saving energy. Attached Figure Description

[0034] Figure 1 This is an exploded view of the airflow equalization and supply device provided by this utility model;

[0035] Figure 2 This is a structural diagram showing the internal structure of the static pressure box provided by this utility model.

[0036] In the diagram: 1. Static pressure box; 11. Air inlet; 12. Air outlet; 13. Snap-fit ​​component; 14. Limiting part; 2. Buffer plate; 21. Ventilation hole; 22. Buffer plate; 3. Flow equalization structure; 30. Flow equalization hole; 31. Base plate; 32. Side plate; 320. Opening; 321. Side plate body; 322. Connecting plate; 3221. Snap protrusion; 4. Flange interface; 41. Mounting hole. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] like Figure 1 As shown, this embodiment provides a flow equalization air supply device, installed in the insulation layer of a constant temperature and humidity laboratory. The flow equalization air supply device includes a static pressure box 1, a buffer plate 2, and a flow equalization structure 3. One end of the static pressure box 1 is provided with an air inlet 11, and the other end is provided with an air outlet 12. A flange interface 4 is provided at the air inlet 11, and multiple mounting holes 41 are provided on the flange interface 4 for easy connection to the air inlet pipe. The buffer plate 2 is provided inside the static pressure box 1, and multiple ventilation holes 21 are provided on the buffer plate 2. The flow equalization structure 3 is provided at the air outlet 12. The bottom and circumferential sidewalls of the flow equalization structure 3 are provided with flow equalization holes 30 that communicate with the interior of the static pressure box 1. The gas entering the static pressure box 1 through the air inlet 11 is buffered and equalized by the buffer plate 2, and then output through the flow equalization holes 30 on the bottom and circumferential sidewalls of the flow equalization structure 3.

[0042] The static pressure chamber 1 of the uniform air supply device receives air through the air inlet 11 and discharges air through the air outlet 12. A buffer plate 2 is installed inside the static pressure chamber 1, and a uniform flow structure 3 is installed at the air outlet 12 of the static pressure chamber 1. The bottom and circumferential sidewalls of the uniform flow structure 3 are provided with uniform flow holes 30 that communicate with the interior of the static pressure chamber 1. The gas entering the static pressure chamber 1 through the air inlet 11 is buffered and uniformly distributed by the buffer plate 2, and then discharged through the uniform flow holes 30 at the bottom and circumferential sidewalls of the uniform flow structure 3, ensuring imperceptible uniform airflow and a large air outlet area. This uniform air supply device eliminates the need to set up an air supply uniform flow chamber in a constant temperature and humidity laboratory, reducing the special requirements for floor height and space, and thus saving energy.

[0043] Specifically, the flow equalization structure 3 includes a base plate 31 and a side plate 32. Multiple flow equalization holes 30 are evenly distributed on the base plate 31. The side plate 32 is circumferentially arranged on the base plate 31, and multiple flow equalization holes 30 are also provided on the side plate 32. The base plate 31 and the side plate 32 form a box structure with an opening 320 at the top. The side plate 32 is connected to the static pressure box 1, and the opening 320 is connected to the air outlet 12 of the static pressure box 1. The flow equalization structure 3 discharges air downwards through the flow equalization holes 30 on the base plate 31 and laterally through the flow equalization holes 30 on the side plate 32, thereby achieving air outlet at the bottom and circumferential sides of the static pressure box 1. The flow equalization structure 3 has a simple structure and is easy to manufacture.

[0044] Furthermore, the side plate 32 includes a side plate body 321 and a connecting plate 322. The bottom of the side plate body 321 is connected to the bottom plate 31, and the top of the side plate body 321 is connected to the connecting plate 322. The side plate body 321 is provided with a plurality of flow equalization holes 30. The connecting plates 322 of each side plate 32 are connected to form an opening 320, and each connecting plate 322 is connected to the static pressure box 1. The side plate 32 discharges air through the flow equalization holes 30 on the side plate body 321, and is easily connected to the static pressure box 1 through the connecting plate 322.

[0045] Optionally, the side plate body 321 is inclined vertically from the end connected to the bottom plate 31 to the end connected to the connecting plate 322 towards the center of the static pressure box 1. The angle between the side plate body 321 and the bottom plate 31 is an acute angle, which can make the air outlet blow towards the insulation layer of the constant temperature and humidity laboratory, making the air outlet range wider and avoiding dead corners between the insulation layer and the static pressure box 1 where the air outlet cannot reach.

[0046] Optionally, the angle between the side plate 32 and the bottom plate 31 is 30°-50°. This angle ensures that the air in the flow equalization structure can be output smoothly without causing air blockage, and also ensures that the air blowing between the insulation layer and the static pressure chamber 1 of the constant temperature and humidity laboratory can be directed without creating a dead zone. That is, when the angle between the side plate 32 and the bottom plate 31 is less than 30°, the air in the lower part of the angled area between the side plate 32 and the bottom plate 31 cannot be output smoothly through the flow equalization hole 30 on the side plate 32, resulting in air blockage. When the angle between the side plate 32 and the bottom plate 31 exceeds 50°, the air outlet from the side plate 32 is almost horizontal, causing the area between the insulation layer and the static pressure chamber 1 of the constant temperature and humidity laboratory to be blocked by air, resulting in a dead zone.

[0047] In this embodiment, the angle between the side plate 32 and the bottom plate 31 is 45°. This angle better balances the smooth outward airflow from the flow equalization structure 3 and the airflow into the area between the insulation layer and the static pressure chamber 1 of the constant temperature and humidity laboratory. That is, this angle allows the gas within the flow equalization structure 3 to be output smoothly, and also ensures that the airflow is delivered to the area between the insulation layer and the static pressure chamber 1 of the constant temperature and humidity laboratory, avoiding dead zones in airflow. In other embodiments, the angle between the side plate 32 and the bottom plate 31 can also be 30°, 32°, 35°, 38°, 40°, 42°, 48°, 50°, etc.

[0048] Optionally, the connecting plate 322 is detachably connected to the static pressure box 1 to facilitate the disassembly, assembly, and cleaning of the flow equalization structure 3. Specifically, the connecting plate 322 is provided with a locking protrusion 3221, and the inner wall of the static pressure box 1 is provided with a locking member 13. The locking protrusion 3221 and the locking member 13 are engaged to achieve a detachable connection between the connecting plate 322 and the static pressure box 1. This structure is simple and facilitates the disassembly and assembly of the flow equalization structure 3. In this embodiment, as shown... Figure 2 As shown, snap-fit ​​members 13 are provided inside the two opposite side walls of the static pressure box 1. The width of the snap-fit ​​members 13 gradually decreases from top to bottom. The snap-fit ​​members 13 are similar to a wedge structure. The flow equalization structure 3 is installed from bottom to top. The snap-fit ​​members 13 can guide the installation of the flow equalization structure 3 and can support the top of the snap-fit ​​members 13 when the snap-fit ​​protrusion 3221 moves to the top of the snap-fit ​​members 13.

[0049] Optionally, the buffer layer 2 can be detachably installed inside the static pressure chamber 1 for easy disassembly, assembly, and cleaning. In this embodiment, the buffer layer 2 includes two buffer plates 22, which are hinged together to fold or unfold. The inner wall of the static pressure chamber 1 is provided with a limiting part 14. When the buffer layer 2 is folded, it can enter the static pressure chamber 1 through the air outlet 12. When the buffer layer 2 is unfolded, it can be supported by the limiting part 14. In this embodiment, limiting parts 14 are provided on all four inner side walls of the static pressure chamber 1 to improve the support stability of the buffer layer 2.

[0050] The advantage of this device lies in its seamless, uniform airflow delivery, making it suitable for use in constant temperature and humidity laboratory environments. As a terminal air outlet device, its specific uniform airflow performance indirectly reduces the required height for air circulation calculations, thereby reducing the air volume and power requirements of air conditioning units, enabling the constructed laboratory to operate energy-efficiently and stably.

[0051] The air distribution and equalization device is directly installed on the insulated roof of the constant temperature and humidity laboratory, eliminating the need for a separate constant temperature and humidity equalization chamber. This invention ensures that the air velocity delivered into the room does not exceed 0.5 m / s by equalizing and slowing down the airflow at the terminal outlet. Taking an air outlet with a capacity of 800 m³ / h as an example, the constant temperature and humidity laboratory air distribution and equalization device model JL-800, with static pressure box 1 designed to accommodate air velocity diffusion and equalization, has dimensions of 600×600×350 mm (width×depth×height), and the duct interface is located at the top of the air supply.

[0052] The buffer shelf 2 measures 600×600×1.2mm (width×depth×height). Considering corrosion resistance and hygiene requirements, it is manufactured using a galvanized steel sheet spraying process. The buffer shelf 2 is fully perforated with φ2.0mm round holes, with an opening rate ≥50%, and is installed inside the static pressure box 1. The buffer shelf 2 can be disassembled and cleaned from the bottom air outlet 12.

[0053] The flow equalization structure 3 is made of galvanized steel sheet with a spray coating process. Its dimensions are 600×600×50mm (width×depth×height). It has a 45° beveled edge treatment, full punching of φ1.5mm round holes, and an opening rate of ≥35%. It is snapped into the static pressure box 1 using snap-fit ​​parts 13 to form a constant temperature and humidity equalization air supply device with a fixed air volume.

[0054] After calculating the circulating air volume based on the space, the constant temperature and humidity laboratory selects and distributes the air volume evenly according to the maximum allowable air volume of a single air distribution device, and arranges them evenly in the room, directly connecting them to the air supply duct.

[0055] Taking a 50㎡ constant temperature and humidity laboratory as an example, the floor height is tentatively set at 4.5m, the ceiling height of the insulation layer is tentatively set at 4m, and the ceiling height is tentatively set at 3.0m. According to the traditional type selection (mode one), the calculated load height is 3m, then the air circulation volume of the laboratory is 50×3×20 (air change times) = 3000m³ / h.

[0056] If we select the more common constant temperature and humidity mode (Mode 2), and the calculated load height is 4m, then the laboratory air circulation volume is 50×4×20 (air change times) = 4000m³ / h.

[0057] The first mode has a low air circulation volume, and the air velocity supplied by the diffuser outlet is relatively high, resulting in uneven airflow. For high-precision constant temperature and humidity laboratories with high requirements for temperature and humidity accuracy, uniformity, fluctuation, and noise, it is difficult for the laboratory to meet the operating standards.

[0058] The air volume selected in Mode 2 is relatively high, but it can ensure the control requirements of high-precision constant temperature and humidity laboratories for various indicators, and can enable the laboratory to operate smoothly in compliance with standards.

[0059] This utility model combines the advantages of two modes, overcoming their respective shortcomings through this uniform airflow distribution device. The third mode is selected for implementation, which uses a uniform airflow distribution device. The ceiling at a height of 3.0m is made into an insulated suspended ceiling, and the calculated airflow volume is 50 × 3 × 20 (air changes) = 3000 m³ / h. Based on the calculated airflow volume, four sets of uniform airflow distribution devices are evenly arranged indoors, resulting in a volume of 4 × 800 m³ / h = 3200 m³ / h. The actual airflow volume meets the calculated airflow requirement. This ensures uniform airflow distribution while reducing airflow requirements, thereby reducing the selection parameters for cooling, heating, and humidification. In the later stages of balanced operation, this effectively reduces operating energy consumption and helps achieve energy conservation and emission reduction.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A current sharing air supply device, characterized by, include: Static pressure box (1), one end of the static pressure box (1) is provided with an air inlet (11) and the other end is provided with an air outlet (12); The buffer layer (2) is provided inside the static pressure box (1), and the buffer layer (2) is provided with a plurality of ventilation holes (21). A flow equalization structure (3) is provided at the air outlet (12). The bottom and circumferential sidewall of the flow equalization structure (3) are provided with flow equalization holes (30) that communicate with the interior of the static pressure box (1). The gas entering the static pressure box (1) from the air inlet (11) is buffered by the buffer plate (2) and then output through the flow equalization holes (30) at the bottom and circumferential sidewall of the flow equalization structure (3).

2. The air distribution device according to claim 1, characterized in that, The flow equalization structure (3) includes: A base plate (31) on which a plurality of flow equalization holes (30) are evenly distributed; Side plate (32) is arranged around the bottom plate (31). Multiple flow equalization holes (30) are provided on the side plate (32). The bottom plate (31) and the side plate (32) form a box structure with an opening (320) at the top. The side plate (32) is connected to the static pressure box (1), and the opening (320) is connected to the air outlet (12) of the static pressure box (1).

3. The air distribution device according to claim 2, characterized in that, The side plate (32) includes a side plate body (321) and a connecting plate (322). The bottom of the side plate body (321) is connected to the bottom plate (31), and the top of the side plate body (321) is connected to the connecting plate (322). The side plate body (321) is provided with a plurality of flow equalization holes (30). The connecting plates (322) of each side plate (32) are connected to form the opening (320), and each connecting plate (322) is connected to the static pressure box (1).

4. The air distribution device according to claim 3, characterized in that, The side plate body (321) gradually tilts towards the center of the static pressure box (1) from the end connected to the bottom plate (31) in the vertical direction to the end connected to the connecting plate (322), and the angle between the side plate body (321) and the bottom plate (31) is an acute angle.

5. The flow-equalizing air supply device of claim 4, wherein The included angle between the side plate (32) and the bottom plate (31) is 30°-50°.

6. The flow-equalizing air supply device of claim 5, wherein The angle between the side plate (32) and the bottom plate (31) is 45°.

7. The air distribution device according to claim 3, characterized in that, The connecting plate (322) is detachably connected to the static pressure box (1).

8. The air distribution device according to claim 7, characterized in that, The connecting plate (322) is provided with a locking protrusion (3221), and the inner wall of the static pressure box (1) is provided with a snap-fit ​​component (13). The locking protrusion (3221) can snap into the snap-fit ​​component (13).

9. The air distribution device according to any one of claims 1-8, characterized in that, The buffer plate (2) can be detachably installed inside the static pressure box (1).

10. The air distribution device according to claim 9, characterized in that, The buffer plate (2) includes two buffer plates (22), which are hinged together to be folded or unfolded; the inner wall of the static pressure box (1) is provided with a limiting part (14); the buffer plate (2) is folded and can enter the static pressure box (1) through the air outlet (12); the buffer plate (2) is unfolded and can be supported by the limiting part (14).

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