Efficient air supply device with flow equalizing effect and efficient air supply system

Abstract

The efficient air supply device with the flow equalizing effect comprises a shell and a flow equalizing plate, the shell is a box with an opening in the bottom, the opening in the bottom forms air outlet, an air inlet is formed in the top of the shell, and the air inlet is located in the middle of a top plate of the shell; the flow equalizing plate is arranged in the shell, the shape of the flow equalizing plate is the same as that of the cross section of the shell, and the flow equalizing plate is in close contact with the inner wall of the shell; the flow equalizing plate is divided into a high-speed area, a medium-speed area and a low-speed area from the center to the periphery; and the apertures of the through holes in the high-speed area, the medium-speed area and the low-speed area are gradually increased. According to the efficient air supply device, airflow entering from the air inlet is changed into airflow with the uniform speed distribution at the air outlet, the stable and uniform airflow environment of a rear working chamber is guaranteed, and the operation stability of precision equipment or the data accuracy of experimental equipment is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of air flow control, and in particular to a high-efficiency air supply device with flow equalization effect. Background Art

[0002] In clean room environments, laboratory operations and other fields, the air sent out by the external environmental control device reaches the working room after being controlled by the high-efficiency air supply device to ensure the air quality and temperature stability in the chamber. Among them, the uniformity and stability of the airflow sent out by the high-efficiency air supply device are crucial to the working environment of the studio.

[0003] At present, a flow equalizer is set in a high-efficiency air supply device to reduce the impact of high-speed airflow on the bottom of the air inlet after the air flow is diverted, but the existing flow equalizer has the following disadvantages: 1. The aperture and spacing on the flow equalizer are fixed: when the high-speed airflow enters the air supply port, the uneven airflow distribution often leads to excessively high airflow velocity in the center area and low airflow velocity in the edge area, which makes it difficult to achieve overall uniform wind speed distribution after the airflow passes through the flow equalizer, making it easy for airflow concentration or uneven distribution to occur on the air outlet surface; 1. After the uneven airflow distribution enters the studio, it will cause turbulence in the chamber, affecting the stability of the precision equipment inside or causing errors in the data of the experimental equipment and affecting the experimental results; 2. Eddies may be generated in local areas, forming airflow dead corners, causing tiny particles in the air to deposit in these areas and be difficult to discharge, affecting the clean environment in the chamber, thereby affecting the operation of precision equipment or experimental equipment; 2. The position of the flow equalizer in the device is fixed and unchanged, and the flow equalization effect cannot be adjusted. The air supply system is difficult to meet the complex working conditions and cannot provide a stable and uniform airflow environment inside the chamber, thereby affecting the operation of the experimental equipment or precision equipment. Summary of the invention

[0004] The problem to be solved by the present invention is to provide an efficient air supply device with a flow-equalizing effect, which converts the airflow coming in from the air inlet into an airflow with a uniform velocity distribution at the air outlet, thereby ensuring a stable and uniform airflow environment in the rear workroom, and ensuring the stability of the operation of the precision equipment or the accuracy of the experimental equipment data. In addition, the tiny particles in the air in the rear workroom will be discharged with the airflow, effectively improving the clean environment of the workroom, and further ensuring the operation of the precision equipment or experimental equipment data. At the same time, the present invention also provides an efficient air supply system.

[0005] The present invention discloses a high-efficiency air supply device with flow equalization effect, which comprises a shell and a flow equalization plate. The shell is a box body with a bottom opening, and the bottom opening forms an air outlet. An air inlet is provided on the top of the shell, and the air outlet is located in the middle of a top plate of the shell. The flow equalization plate is arranged in the shell, and its shape is the same as the cross-sectional shape of the shell, and the flow equalization plate is in close contact with the inner wall of the shell. The flow equalization plate is divided into a high-speed area, a medium-speed area and a low-speed area from the center to the periphery. The apertures of the through holes in the high-speed area, the medium-speed area and the low-speed area gradually increase.

[0006] Furthermore, the high-speed area of ​​the flow equalizing plate is located directly below the air inlet, and its shape is the same as that of the air inlet 2.1; the medium-speed area is located outside the high-speed area, and the low-speed area is located outside the medium-speed area; the area of ​​the high-speed area is the smallest, the area of ​​the medium-speed area is the largest, and the area of ​​the low-speed area is in the middle.

[0007] Furthermore, when the outer shell is rectangular and the air inlet is circular, the flow equalizing plate is rectangular, the high-speed area is circular, and the high-speed area and the medium-speed area as a whole are a small rectangle with their long and short sides parallel to those of the flow equalizing plate.

[0008] Furthermore, when the outer shell is rectangular and the air inlet is circular, the flow equalizing plate is rectangular, the high-speed area is circular, the high-speed area and the medium-speed area are elliptical as a whole, the center of the ellipse coincides with the center of the circle, and the long and short sides of the ellipse are parallel to the long and short sides of the flow equalizing plate.

[0009] Furthermore, the high-efficiency air supply device also includes four L-shaped height adjustment blocks, one side of the height adjustment block is connected to the flow equalizing plate through a fastener, and the other side is connected to the side wall of the shell.

[0010] Furthermore, the thickness of the current balancing plate is between 1 mm and 5 mm.

[0011] Furthermore, the current equalizing plate is processed by using precision laser cutting technology.

[0012] Furthermore, the surface of the current equalizing plate is subjected to anti-corrosion treatment.

[0013] Furthermore, the flow balancing plate and the height adjustment block are made of aluminum alloy or stainless steel.

[0014] The present invention discloses a high-efficiency air supply system, which comprises an external environmental control device, a high-efficiency air supply device and a working room; the external environmental control device is connected with the high-efficiency air supply device through an air supply duct, and the high-efficiency air supply device is connected with the working room; the air inlet is fixedly connected with the air supply duct, and the air outlet is sealedly connected with the air inlet of the chamber.

[0015] The advantages of the high-efficiency air supply device of the present invention are: 1. The airflow generated by the front external environmental control device forms a gas with uniform flow velocity distribution after flowing through the flow equalizing plate, and is sent to the rear working chamber through the air outlet to fill the entire body cavity, forming a stable and uniform airflow environment, and will not cause turbulence in the chamber: 1. The stability of the operation of precision equipment is guaranteed and its service life is extended; 2. The experimental error caused by airflow fluctuations is reduced to ensure the accuracy of experimental data, especially the results of precision instrument experiments; 3. The tiny particles in the air will not accumulate but will be discharged with the airflow, which effectively improves the clean environment of the studio and further ensures the operation of precision equipment or experimental equipment; 2. The height of the flow equalizing plate is adjusted by replacing the height adjustment block, and the distance between it and the air inlet is adjusted to change the flow path of the airflow when passing through the flow equalizing plate, optimize the uniformity and distribution effect of the airflow, meet the special requirements of airflow distribution in different application scenarios, and achieve the best airflow uniformity under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the overall air supply system of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the high-efficiency air supply device of the present invention.

[0018] Figure 3 It is a schematic diagram of the combination of the flow equalizing plate and the height adjustment block.

[0019] Figure 4 Schematic diagram of the height adjustment block.

[0020] Figure 5 Schematic diagram of air flow distribution of a high-efficiency air supply device.

[0021] Figure 6 This is a schematic diagram of the arrangement of the flow equalizing plates in different areas. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] from Figure 2 , Figure 3 , Figure 5 , Figure 6It can be seen that the present invention is a high-efficiency air supply device with a flow equalizing effect, which includes a shell 2.2 and a flow equalizing plate 2.4. The shell 2.2 is a box with a bottom opening, and the bottom opening forms an air outlet 2.3. The top of the shell 2.2 is provided with an air inlet 2.1, and the air outlet 2.1 is located in the middle of the top plate of the shell 2.2; the flow equalizing plate 2.4 is arranged in the shell 2.2, and its shape is the same as the cross-sectional shape of the shell 2.2, and the flow equalizing plate 2.4 is in close contact with the inner wall of the shell 2.2; the flow equalizing plate 2.4 is divided into a high-speed area, a medium-speed area and a low-speed area from its center to the surrounding areas; the apertures of the through holes in the high-speed area, the medium-speed area and the low-speed area gradually increase.

[0025] The working principle of the high-efficiency air supply device of the present invention is: after the airflow of the external environmental control device enters the high-efficiency air supply device, the flow equalizer is divided into a high-speed area, a medium-speed area and a low-speed area according to the internal flow field distribution, and the airflow first enters the high-speed area with a smaller aperture, and a small amount of airflow passes through the flow equalizer; then, most of the airflow diffuses to the medium-speed area and partially passes through the flow equalizer; finally, the airflow reaches the low-speed area around and passes through the through holes with a larger aperture, thus achieving effective balance of the airflow velocity, so that the airflow velocity out of the air outlet is evenly distributed, and the uniform airflow enters the subsequent working room and can fill its every corner, forming a stable and uniform airflow environment in the chamber, reducing airflow fluctuations, and ensuring the stability of the operation of the precision equipment inside or the accuracy of the data of the experimental equipment; in addition, tiny particles in the air will not accumulate but will be discharged with the airflow, effectively improving the environmental quality of the chamber and ensuring the operation of the precision equipment or experimental equipment.

[0026] The high-efficiency air supply device of the present invention converts the airflow entering the air inlet into an airflow with uniform velocity distribution at the air outlet, thereby solving the problem that the wind speed is reduced due to the outward diffusion of the existing airflow after entering the air supply outlet, which leads to the phenomenon that the airflow is easily concentrated or unevenly distributed on the air outlet surface.

[0027] Example 2

[0028] from Figure 2 , Figure 3 , Figure 5 , Figure 6 It can be seen that in the high-efficiency air supply device of the present invention: the high-speed area of ​​the flow equalizing plate 2.4 is located directly below the air inlet 2.1, and its shape is the same as that of the air inlet 2.1; the medium-speed area is located on the periphery of the high-speed area, and the low-speed area is located on the periphery of the medium-speed area; the area of ​​the high-speed area is the smallest, the area of ​​the medium-speed area is the largest, and the area of ​​the low-speed area is in the middle.

[0029] The high-speed area corresponds to the larger pressure and velocity differences brought by high-speed airflow. In order to avoid airflow disturbances and local pressure imbalances caused by large-area high-speed flow, the high-speed area accounts for the smallest area. The low-speed area is an area with mild airflow, which is used to reduce the turbulence effect and airflow swirl phenomenon at the airflow boundary, making the overall flow field more stable and avoiding strong disturbances or dead corners locally. The area accounts for a slightly larger proportion. The medium-speed area is the main distribution area of ​​the airflow, occupying most of the air supply surface. In order to ensure the smooth distribution of most of the airflow, the medium-speed area accounts for the largest area. By reasonably designing the areas of the high-speed area, the medium-speed area, and the low-speed area, both the effective balance of the airflow velocity and the uniformity of the airflow pressure are guaranteed, making the airflow at the outlet more uniform, and improving the phenomenon that the traditional air outlet is prone to airflow concentration or uneven distribution on the air outlet surface.

[0030] The hole diameter and hole spacing on the flow equalizing plate 2.4 are adjusted according to actual application requirements to adapt to different air outlet sizes and air flow requirements.

[0031] Example 3

[0032] from Figure 2 , Figure 3 , Figure 5 , Figure 6 It can be seen that the high-efficiency air supply device of the present invention: when the outer shell 2.2 is rectangular and the air inlet 2.1 is circular, the flow equalizing plate 2.4 is rectangular, the high-speed area is circular, and the high-speed area and the medium-speed area as a whole are a small rectangle, and its long and short sides are parallel to the long and short sides of the flow equalizing plate 2.4.

[0033] In the case where the housing 2.2 is rectangular and the air inlet 2.1 is circular: the high-speed area is a circular area of ​​the same size as the air inlet 2.1, the medium-speed area is a small rectangular area minus the circular area, and the low-speed area is the overall rectangle of the flow equalizer 2.4 minus the small rectangular area. Among them: the medium-speed area is a small rectangular area, which makes the holes arranged more closely, and the opening rate per unit area is higher, which increases the ventilation efficiency, makes the airflow coverage more comprehensive, can avoid the occurrence of local dead corners, and enhances the integrity of the airflow; the long and short sides of the small rectangular holes match the long and short sides of the flow equalizer 2.4, that is, the long and short sides of the air outlet, which helps to improve the ventilation efficiency, airflow uniformity, and avoid local flow velocity differences.

[0034] The airflow first enters the circular high-speed area with a smaller aperture, and a small amount of airflow passes through the flow equalizer; then, most of the airflow diffuses to the medium-speed area and partially passes through the flow equalizer; finally, the airflow reaches the low-speed area around it and passes through the through holes with larger apertures, achieving effective balance of the airflow speed, offsetting the wind speed reduction caused by the outward diffusion of the airflow, and ensuring that the airflow with uniform velocity distribution is formed on the air outlet surface of the high-efficiency air supply device.

[0035] Example 4

[0036] from Figure 2 , Figure 3 , Figure 5 , Figure 6 It can be seen that the high-efficiency air supply device of the present invention: when the outer shell 2.2 is rectangular and the air inlet 2.1 is circular, the flow equalizing plate 2.4 is rectangular, the high-speed area is circular, the high-speed area and the medium-speed area are elliptical as a whole, the center of the ellipse coincides with the center of the circle, and the long and short sides of the ellipse are parallel to the long and short sides of the flow equalizing plate 2.4.

[0037] In the case where the housing 2.2 is rectangular and the air inlet 2.1 is circular: the high-speed area is a circular area of ​​the same size as the air inlet 2.1, the medium-speed area is an ellipse minus the circular area, and the low-speed area is the overall rectangular area minus the ellipse of the equalizer plate 2.4. Among them, the medium-speed area is an ellipse area, which can better guide the diffusion of airflow from the high-speed area to the low-speed area, reduce the turbulence effect of the high-speed airflow boundary, make the overall flow field more stable, and avoid strong disturbances or dead corners in some parts; the ratio of the long and short sides of the ellipse becomes larger, so that the airflow speed on the long and short sides of the equalizer plate is more matched, thereby improving the uniformity of the airflow.

[0038] The airflow first enters the circular high-speed area with a smaller aperture, and a small amount of airflow passes through the equalizer plate; then, most of the airflow diffuses to the medium-speed area and partially passes through the equalizer plate; finally, the airflow reaches the low-speed area around it and passes through the through holes with larger apertures, achieving effective balance of the airflow speed, offsetting the reduction in wind speed caused by the outward diffusion of the airflow, and ensuring that a uniform airflow is formed on the air outlet surface of the high-efficiency air supply device.

[0039] Example 5

[0040] from Figure 3 , Figure 4 It can be seen that the high-efficiency air supply device of the present invention further includes four L-shaped height adjustment blocks 2.5, one side of the height adjustment block 2.5 is connected to the flow equalizing plate 2.4 by a fastener, and the other side is connected to the side wall of the shell 2.2.

[0041] According to different air supply systems and working conditions, the height adjustment block 2.5 is replaced to adjust the height of the equalizer plate 2.4, adjust the distance between it and the air inlet, change the flow path of the airflow when passing through the equalizer plate 2.4, optimize the uniformity and distribution effect of the airflow, meet the special requirements of different application scenarios for airflow distribution, and achieve the best airflow uniformity under different working conditions. The specific description is as follows: 1. In the case of a higher height, the equalizer plate 2.4 is close to the air inlet 2.1, and the airflow is immediately dispersed by the equalizer plate after entering the device, and is quickly regulated, quickly reducing the local high-speed area of ​​the airflow, avoiding strong airflow directly entering the medium-speed area and the low-speed area, ensuring that the airflow can be quickly diffused and evenly distributed, which is suitable for working conditions with large airflow pressure; 2. In the case of a lower height setting, the equalizer plate 2.4 is far away from the air inlet 2.1, and the airflow enters the device and reaches the equalizer plate after sufficient diffusion time and space. The airflow is more stable when passing through the equalizer plate, and the airflow velocity in the edge area will be relatively increased, which can effectively solve the problem of low airflow velocity at the edge, and help to improve the airflow uniformity at the edge, which is suitable for working conditions with large air outlets.

[0042] Example 6

[0043] The high-efficiency air supply device of the present invention: the thickness of the flow equalizing plate 2.4 is between 1 mm and 5 mm.

[0044] The thickness of the flow balancing plate 2.4 should be sufficient to ensure that it has sufficient structural strength and durability.

[0045] The flow equalizer plate 2.4 is processed by precision laser cutting technology to ensure the accuracy of the aperture and spacing. The height adjustment block 2.5 and the flow equalizer plate 2.4 are made of aluminum alloy or stainless steel to improve the structural strength and durability. The surface of the flow equalizer plate 2.4 is treated with anti-corrosion to extend its service life.

[0046] Example 7

[0047] from Figure 1 It can be seen that the present invention provides a high-efficiency air supply system: it includes an external environmental control device 1, a high-efficiency air supply device 2, and a working room 3; the external environmental control device 1 is connected to the high-efficiency air supply device 2 through an air supply duct 11, and the high-efficiency air supply device 2 is connected to the working room 3; the air inlet 2.1 is fixedly connected to the air supply duct 1.1, and the air outlet 2.3 is sealedly connected to the chamber air inlet 3.1.

[0048] The high-efficiency air supply system of the present invention: an external environmental control device 1 generates constant temperature and humidity gas, and the high-efficiency air supply device 2 transmits the gas to the working room 3. After the gas passes through the flow equalizing plate 2.4, the gas flow rate out of the air outlet 2.3 is evenly distributed; the gas with even flow rate distribution enters the working room 3 and fills the entire body cavity, forming a stable and uniform airflow environment, thereby ensuring the stability of the operation of the precision equipment or the accuracy of the experimental data of the experimental equipment.

[0049] The advantages of the high-efficiency air supply device of the present invention are: 1. The airflow generated by the front external environmental control device forms a gas with uniform flow velocity distribution after flowing through the flow equalizing plate, and is sent to the rear working chamber through the air outlet to fill the entire body cavity, forming a stable and uniform airflow environment, and will not cause turbulence in the chamber: 1. The stability of the operation of precision equipment is guaranteed and its service life is extended; 2. The experimental error caused by airflow fluctuations is reduced to ensure the accuracy of experimental data, especially the results of precision instrument experiments; 3. The tiny particles in the air will not accumulate but will be discharged with the airflow, which effectively improves the clean environment of the studio and further ensures the operation of precision equipment or experimental equipment; 2. The height of the flow equalizing plate is adjusted by replacing the height adjustment block, and the distance between it and the air inlet is adjusted to change the flow path of the airflow when passing through the flow equalizing plate, optimize the uniformity and distribution effect of the airflow, meet the special requirements of airflow distribution in different application scenarios, and achieve the best airflow uniformity under different working conditions.

[0050] Therefore, the high-efficiency air supply device of the present invention ensures the balance and consistency of the working room environment, and is particularly suitable for occasions requiring strict air quality and temperature control, such as clean rooms, laboratories, etc. The high-efficiency air supply system of the present invention improves system stability and environmental control accuracy.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-efficiency air supply device with flow-balancing effect, characterized in that: It comprises a shell (2.2) and a flow equalizing plate (2.4); the shell (2.2) is a box body with an opening at the bottom, the opening at the bottom forms an air outlet (2.3); an air inlet (2.1) is provided at the top of the shell (2.2), and the air outlet (2.1) is located in the middle of the top plate of the shell (2.2); the flow equalizing plate (2.4) is arranged in the shell (2.2), and its shape is the same as the cross-sectional shape of the shell (2.2); the flow equalizing plate (2.4) is in close contact with the inner wall of the shell (2.2); the flow equalizing plate (2.4) is divided into a high-speed area, a medium-speed area and a low-speed area from the center thereof; the apertures of the through holes in the high-speed area, the medium-speed area and the low-speed area gradually increase.

2. The high-efficiency air supply device according to claim 1, characterized in that: The high-speed area of ​​the flow equalizing plate (2.4) is located directly below the air inlet (2.1) and has the same shape as the air inlet (2.1); the medium-speed area is located outside the high-speed area, and the low-speed area is located outside the medium-speed area; the high-speed area has the smallest area, the medium-speed area has the largest area, and the low-speed area is in the middle.

3. The high-efficiency air supply device according to claim 1 is characterized in that: When the housing (2.2) is rectangular and the air inlet (2.1) is circular, the flow equalizing plate (2.4) is rectangular, the high-speed area is circular, and the high-speed area and the medium-speed area are a small rectangle as a whole, with the long and short sides of the rectangle being parallel to those of the flow equalizing plate (2.4).

4. The high-efficiency air supply device according to claim 1 is characterized in that: When the housing (2.2) is rectangular and the air inlet (2.1) is circular, the flow equalizing plate (2.4) is rectangular, the high-speed area is circular, the high-speed area and the medium-speed area are elliptical as a whole, the center of the ellipse coincides with the center of the circle, and the long and short sides of the ellipse are parallel to the long and short sides of the flow equalizing plate (2.4).

5. The high-efficiency air supply device according to claim 1 is characterized in that: It also comprises four L-shaped height adjustment blocks (2.5), one side of the height adjustment block (2.5) is connected to the flow equalizing plate (2.4) via a fastener, and the other side of the height adjustment block (2.5) is connected to the side wall of the shell (2.2).

6. The high-efficiency air supply device according to claim 1 is characterized in that: The thickness of the flow balancing plate (2.4) is between 1 mm and 5 mm.

7. The high-efficiency air supply device according to claim 1 is characterized in that: The current balancing plate (2.4) is processed by using precision laser cutting technology.

8. The high-efficiency air supply device according to claim 1, characterized in that: The surface of the flow equalizing plate (2.4) is subjected to anti-corrosion treatment.

9. The high-efficiency air supply device according to claim 6, characterized in that: The flow balancing plate (2.4) and the height adjustment block (2.5) are made of aluminum alloy or stainless steel.

10. A high-efficiency air supply system, characterized by: It comprises an external environmental control device (1), a high-efficiency air supply device (2) as described in any one of claims 1 to 9, and a studio (3); the external environmental control device (1) is connected to the high-efficiency air supply device (2) via an air supply duct (1.1), and the high-efficiency air supply device (2) is connected to the studio (3); the air inlet (2.1) is fixedly connected to the air supply duct (1.1), and the air outlet (2.3) is sealedly connected to the air inlet (3.1) of the studio.

Images