Clean air duct laminar air supply device

Abstract

The application provides a clean ventilation pipeline laminar air supply device, and relates to the technical field of pipeline air supply.The clean ventilation pipeline laminar air supply device comprises a ventilation pipeline main body, a flow guide fan, a primary filter and a medium filter are sequentially installed in the inlet end of the ventilation pipeline main body.By installing the flow guide fan, the primary filter and the medium filter in the inlet end of the ventilation pipeline main body, the flow guide fan sucks external air into the ventilation pipeline main body, the external air continues to flow in the ventilation pipeline main body after being filtered by the primary filter and the medium filter, the filtered air flows through a plurality of silencers, so that the noise in the ventilation pipeline main body can be reduced, meanwhile, the plurality of silencers can play a flow equalizing role, so that the air is distributed in the ventilation pipeline main body, and then the air flows through the laminar flow assembly, so that the air flow in the ventilation pipeline main body is more stable, the vortex and turbulent flow are reduced, and the air supply uniformity is improved.

Description

Technical Field

[0001] This application relates to the field of ducted air supply, and more specifically, to a laminar flow air supply device for clean ventilation ducts. Background Technology

[0002] In cleanrooms, laboratories, hospital operating rooms, and other places with high air quality requirements, laminar flow air supply systems are typically used to provide clean air. Traditional laminar flow air supply systems mainly achieve air purification through filters, but they suffer from problems such as uneven airflow organization, turbulence, and unsatisfactory air supply effect. Especially within ventilation ducts, airflow can easily form eddies, leading to uneven outlet air velocity and affecting laminar flow performance. Therefore, a laminar flow air supply system that can make airflow within ventilation ducts more stable and uniform is needed. Utility Model Content

[0003] To overcome the shortcomings of the existing system, this application provides a laminar flow air supply device for clean ventilation ducts, which can solve the problem of unstable air flow in the above-mentioned air supply devices.

[0004] The technical solution adopted by this application embodiment to solve its technical problem is: a clean ventilation duct laminar flow air supply device, including a ventilation duct body, a duct fan, a primary filter and a medium-efficiency filter are installed in sequence in the inlet end of the ventilation duct body, a flow equalization and noise reduction component and a laminar flow component are also installed in the ventilation duct body, and a high-efficiency filter is installed in the outlet end of the ventilation duct body.

[0005] In one specific implementation, the flow equalization and silencing component includes a mounting plate slidably disposed within the main body of the ventilation duct, wherein a plurality of silencing pipes are passed through the mounting plate, and a plurality of silencing holes are provided on the silencing pipes.

[0006] In one specific implementation, a plurality of the silencing tubes are evenly distributed on the mounting plate, and a plurality of the silencing holes are evenly distributed on the silencing tubes.

[0007] In one specific implementation, a limiting frame is fixedly installed on the inner wall of the ventilation duct body, and the mounting plate is in contact with the limiting frame.

[0008] In one specific implementation, a screw rod is slidably passed through the mounting plate, one end of the screw rod is threadedly connected to the mounting plate, and a limiting block is fixedly sleeved on the screw rod, with the limiting block pressing against the mounting plate.

[0009] In one specific implementation, the ventilation duct body includes a first duct and a second duct, which are detachably connected. The duct fan, the primary filter, and the secondary filter are all installed inside the first duct. The limiting frame is fixedly installed on the inner wall of the first duct. The flow equalization and noise reduction assembly is disposed inside the first duct, and the laminar flow assembly and the high-efficiency filter are disposed inside the second duct.

[0010] In one specific implementation, the laminar flow assembly includes a plurality of first laminar flow plates and a plurality of second laminar flow plates, all of which are fixedly installed inside the second pipe.

[0011] In one specific implementation, a flow equalization plate is also fixedly installed inside the second pipe, and the flow equalization plate is located inside the first laminar flow plate and the second laminar flow plate.

[0012] The advantages of this embodiment are: by installing a duct fan, a pre-filter, and a medium-efficiency filter inside the inlet end of the ventilation duct body, the duct fan draws outside air into the ventilation duct body. After being filtered by the pre-filter and the medium-efficiency filter, the outside air continues to flow inside the ventilation duct body. The filtered air flows through several silencers, thereby reducing the noise inside the ventilation duct body. At the same time, the silencers can play a role in equalizing the flow, distributing the air inside the ventilation duct body. Furthermore, the air flows through the laminar flow components, making the air flow more stable inside the ventilation duct body, reducing the generation of eddies and turbulence, and improving the uniformity of air supply. Attached Figure Description

[0013] Figure 1 A schematic diagram of the main structure of the clean ventilation duct laminar flow air supply device provided for the embodiments of this application;

[0014] Figure 2 A front cross-sectional view of the laminar flow air supply device for clean ventilation ducts provided in the embodiments of this application;

[0015] Figure 3 A partial cross-sectional structural schematic diagram of the laminar flow air supply device for clean ventilation ducts provided in the embodiments of this application;

[0016] Figure 4 A side cross-sectional view of the laminar flow air supply device for clean ventilation ducts provided in the embodiments of this application;

[0017] Figure 5 for Figure 2 A magnified view of a portion of point A in the middle.

[0018] In the diagram: 10-Ventilation duct body; 110-Limiting frame; 20-Driving fan; 30-Primary filter; 40-Medium efficiency filter; 50-Flow equalization and silencing assembly; 510-Mounting plate; 520-Silencing pipe; 530-Silencing hole; 60-Laminar flow assembly; 610-First laminar flow plate; 620-Second laminar flow plate; 70-High efficiency filter; 80-Screw; 810-Limiting block; 90-First duct; 910-Second duct; 920-Flow equalization plate. Detailed Implementation

[0019] The technical solution in this application embodiment is to solve the problem of unstable airflow in the aforementioned air supply device. The overall approach is as follows:

[0020] Example:

[0021] Please see Figure 1-5 A clean ventilation duct laminar flow air supply device includes a ventilation duct body 10. A duct fan 20, a pre-filter 30, and a medium-efficiency filter 40 are sequentially installed inside the inlet end of the ventilation duct body 10. Specifically, the duct fan 20 draws outside air into the ventilation duct body 10. After being filtered by the pre-filter 30 and the medium-efficiency filter 40, the air continues to flow towards the outlet end of the ventilation duct body 10. A flow equalization and noise reduction component 50 and a laminar flow component 60 are also installed inside the ventilation duct body 10. The filtered air flows through the flow equalization and noise reduction component 50, which reduces noise and simultaneously activates the flow equalization function, ensuring that the air is evenly distributed within the ventilation duct body 10. This allows the air to pass through the laminar flow component 60, making the airflow more stable. A high-efficiency filter 70 is installed at the outlet end of the ventilation duct body 10. Finally, the air is filtered again by the high-efficiency filter 70 before being discharged from the ventilation duct body 10.

[0022] See Figure 2-5The flow equalization and noise reduction assembly 50 includes a mounting plate 510 slidably disposed within the ventilation duct body 10. The mounting plate 510 is vertically disposed within the ventilation duct body 10, and several noise reduction pipes 520 pass through the mounting plate 510. The noise reduction pipes 520 are horizontally disposed, and several noise reduction holes 530 are provided on the noise reduction pipes 520. By providing noise reduction holes 530, the sound frequency is reduced, thereby reducing the noise inside the ventilation duct body 10. Furthermore, the noise reduction pipes 520 are evenly distributed on the mounting plate 510, and the noise reduction holes 530 are evenly distributed on the noise reduction pipes 520. At the same time, the noise reduction pipes 520 can activate the flow equalization function, allowing the air inside the ventilation duct body 10 to pass through the noise reduction pipes 520, thereby making the air evenly distributed inside the ventilation duct body 10. Further, the ventilation... A limiting frame 110 is fixedly installed on the inner wall of the duct body 10. The mounting plate 510 is in contact with the limiting frame 110. Specifically, the mounting plate 510 is inserted into the ventilation duct body 10 and contacts the limiting frame 110, so that the limiting frame 110 limits the mounting plate 510. In addition, a screw 80 is slidably passed through the mounting plate 510. When installed, a hole adapted to the screw 80 is opened on the mounting plate 510. At the same time, a screw hole is opened on one side wall of the limiting frame 110. One end of the screw 80 is connected to the screw hole, and the other end of the screw 80 is threadedly connected to the mounting plate 510. A limiting block 810 is fixedly sleeved on the screw 80. The limiting block 810 presses on the mounting plate 510, so that the limiting block 810 cooperates with the limiting frame 110 to limit the mounting plate 510 and prevent the mounting plate 510 from moving inside the ventilation duct body 10.

[0023] See Figure 3 The ventilation duct body 10 includes a first duct 90 and a second duct 910. The first duct 90 and the second duct 910 are detachably connected. In a specific configuration, the first duct 90 and the second duct 910 are connected to each other. At the same time, a connecting frame is fixedly installed on the outer wall of both the first duct 90 and the second duct 910. When the first duct 90 and the second duct 910 are in close contact, the two connecting frames are also in close contact. Corresponding holes are opened on both connecting frames. Bolts are passed through the two corresponding holes and connected with nuts to connect the first duct 90 and the second duct 910 together. The induced flow fan 20, the primary filter 30 and the medium-efficiency filter 40 are all installed in the first duct 90. The limiting frame 110 is fixedly installed on the inner wall of the first duct 90. The flow equalization and noise reduction component 50 is set in the first duct 90. The laminar flow component 60 and the high-efficiency filter 70 are set in the second duct 910.

[0024] See Figure 3The laminar flow assembly 60 includes several first laminar flow plates 610 and several second laminar flow plates 620. During installation, several first laminar flow plates 610 are horizontally fixedly installed inside the second pipe 910, and the several first laminar flow plates 610 are arranged at equal intervals. Similarly, several second laminar flow plates 620 are arranged at equal intervals. Both the several first laminar flow plates 610 and the several second laminar flow plates 620 are fixedly installed inside the second pipe 910. Furthermore, a flow equalization plate 920 is also fixedly installed inside the second pipe 910. The flow equalization plate 920 is located inside the first laminar flow plates 610 and the second laminar flow plates 620. It should be noted that the flow equalization plate 920 has several through holes, which are evenly distributed on the flow equalization plate 920.

[0025] When this application is used:

[0026] The specific installation structure of the ventilation duct body 10 is based on existing technology. When the exhaust fan 20 is working, it draws outside air into the ventilation duct body 10. After the air passes through the primary filter 30 and the medium-efficiency filter 40, it flows through several silencer pipes 520, thereby reducing the noise inside the ventilation duct body 10 and also playing a role in equalizing the airflow. Then the air flows through several first laminar flow plates 610, which play a role in slowing the flow. Then the air flows through the flow equalization plate 920, and then through several second laminar flow plates 620. Finally, it passes through the high-efficiency filter 70, and the clean and stable airflow is discharged.

[0027] It should be noted that the specific models and specifications of the induced draft fan 20, primary filter 30, medium-efficiency filter 40 and high-efficiency filter 70 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0028] The power supply and operating principle of the induced draft fan 20, the primary filter 30, the medium-efficiency filter 40 and the high-efficiency filter 70 are clear to those skilled in the art and will not be described in detail here.

[0029] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A laminar flow air supply device for clean ventilation ducts, characterized in that, The ventilation duct body (10) includes a ventilation duct body (10), an exhaust fan (20), a primary filter (30) and a medium-efficiency filter (40) installed sequentially in the inlet end of the ventilation duct body (10), a flow equalization and noise reduction component (50) and a laminar flow component (60) installed in the ventilation duct body (10), and a high-efficiency filter (70) installed in the outlet end of the ventilation duct body (10).

2. The clean ventilation duct laminar flow air supply device as described in claim 1, characterized in that, The flow equalization and silencing component (50) includes an installation plate (510) slidably disposed within the main body (10) of the ventilation duct, and a plurality of silencing pipes (520) passing through the installation plate (510), and a plurality of silencing holes (530) being provided on the silencing pipes (520).

3. The clean ventilation duct laminar flow air supply device as described in claim 2, characterized in that, A plurality of the silencing tubes (520) are evenly distributed on the mounting plate (510), and a plurality of the silencing holes (530) are evenly distributed on the silencing tubes (520).

4. The clean ventilation duct laminar flow air supply device as described in claim 2, characterized in that, A limiting frame (110) is fixedly installed on the inner wall of the ventilation duct body (10), and the mounting plate (510) is in contact with the limiting frame (110).

5. The clean ventilation duct laminar flow air supply device as described in claim 4, characterized in that, A screw (80) is slidably passed through the mounting plate (510). One end of the screw (80) is threadedly connected to the mounting plate (510). A limiting block (810) is fixedly sleeved on the screw (80) and presses the limiting block (810) on the mounting plate (510).

6. The clean ventilation duct laminar flow air supply device as described in claim 5, characterized in that, The ventilation duct body (10) includes a first duct (90) and a second duct (910), which are detachably connected. The induced flow fan (20), the primary filter (30) and the secondary filter (40) are all installed in the first duct (90). The limiting frame (110) is fixedly installed on the inner wall of the first duct (90). The flow equalization and noise reduction component (50) is disposed in the first duct (90). The laminar flow component (60) and the high-efficiency filter (70) are disposed in the second duct (910).

7. The clean ventilation duct laminar flow air supply device as described in claim 6, characterized in that, The laminar flow assembly (60) includes a plurality of first laminar flow plates (610) and a plurality of second laminar flow plates (620), and the plurality of first laminar flow plates (610) and the plurality of second laminar flow plates (620) are all fixedly installed inside the second pipe (910).

8. The clean ventilation duct laminar flow air supply device as described in claim 7, characterized in that, A flow equalization plate (920) is also fixedly installed inside the second pipe (910), and the flow equalization plate (920) is located inside the first laminar flow plate (610) and the second laminar flow plate (620).

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