Air decontamination and impurity removal device for aseptic and dust-free rooms

By adopting an external duct and return air duct structure in the cleanroom air purification device, and incorporating disinfection lamps and filter rolls, the problems of low integration level and inability to continuously disinfect and filter are solved, achieving continuous disinfection and filtration of the gas and meeting the air quality requirements of the sterile cleanroom.

CN224580403UActive Publication Date: 2026-07-31HEBEI WAKASHAN BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI WAKASHAN BIOTECHNOLOGY CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing cleanroom air purification devices have a low level of integration, cannot continuously disinfect and filter, and require shutdown to replace the filter, affecting production.

Method used

An air sterilization and impurity removal device for a sterile and dust-free workshop was designed. It adopts an external duct and return air duct structure, and is equipped with a disinfection lamp and a filter roll to achieve continuous disinfection and filtration of the gas. The filter roll can work continuously without being disassembled.

Benefits of technology

It achieves continuous gas disinfection and filtration, improves the integration level of the device, is easy to operate, avoids the inconvenience of downtime to replace the filter, and meets the air quality requirements of sterile and dust-free workshops.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides an air sterilization and impurity removal device for sterile and cleanroom workshops, belonging to the field of air treatment technology. It includes an outer pipe, a return air duct, a disinfection lamp, and a filter roll. One end of the outer pipe is the air inlet, and a through hole is provided on one side of its outer wall. The return air duct is fitted inside the outer pipe, with the side near the air inlet sealed and the other end connected to the outlet pipe; multiple ventilation holes are provided on the return air duct. The disinfection lamp is fixed to the return air duct. The filter roll passes through the through hole from one side to the space between the outer pipe and the return air duct, and exits from the other side of the through hole; the filter roll continuously filters the gas by unwinding and moving inside the outer pipe. The air sterilization and impurity removal device for sterile and cleanroom workshops provided by this utility model has a high level of integration, thus achieving continuous disinfection and filtration of gas, convenient operation, and good gas treatment effect.
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Description

Technical Field

[0001] This utility model belongs to the field of air treatment technology, and more specifically, it relates to a device for sterilizing and removing impurities from air in sterile and dust-free workshops. Background Technology

[0002] Cleanrooms have high requirements for air quality, necessitating the installation of air purification devices to filter and sterilize the air entering the cleanroom. Existing devices typically rely on filters for impurity removal and ultraviolet lamps for sterilization. However, if the cleanroom area is large, the volume of air that needs to be processed per unit time is also significant, placing high demands on the integration level of the equipment. More importantly, filters require timely replacement after a period of use, necessitating machine shutdown and disrupting normal production, making operation inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide an air sterilization and impurity removal device for sterile and dust-free workshops, aiming to solve the problems of low integration level and inability to continuously disinfect and filter gases.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an air sterilization and impurity removal device for sterile and dust-free workshops, comprising: An outer tube, one end of which is an air inlet, and a through hole is provided on one side of the outer wall of the outer tube; A return air duct is fitted inside the outer duct, with one end of the return air duct near the air inlet sealed and the other end connected to the air outlet duct; the return air duct has multiple ventilation holes. The disinfection lamp is fixed on the return air duct. A filter roll is inserted from one side of the through-hole into the space between the outer tube and the return air duct, and exits from the other side of the through-hole; the filter roll is used to continuously filter gas by unwinding and moving inside the outer tube.

[0005] In one possible implementation, the disinfection lamp is fixed inside the return air duct, which is made of a transparent material.

[0006] In one possible implementation, there are multiple disinfection lamps, which are evenly fixed on the outer surface of the return air duct.

[0007] In one possible implementation, a barrier pipe is provided between the outer pipe and the return air pipe, and the barrier pipe has multiple through holes, with the filter screen roll located inside the outer pipe attached to the barrier pipe.

[0008] In one possible implementation, the barrier tube is positioned outside the return air duct by a plurality of retaining rods.

[0009] In one possible implementation, the through hole is an elongated hole and is formed along the length of the outer tube.

[0010] In one possible implementation, a sealing roller is rotatably provided inside the through hole, and the sealing roller forms a feeding gap and a discharging gap with the two sides of the through hole. The filter screen roll enters through the feeding gap and exits through the discharging gap.

[0011] In one possible implementation, two sealing rollers are installed on the outer wall of the outer tube. The two sealing rollers are distributed on both sides of the sealing roller and abut against the sealing roller. The two sealing rollers form the feed gap and the discharge gap with the sealing roller, respectively.

[0012] In one possible implementation, a sealing gasket is provided along the sidewall of the through hole, and the sealing gasket is fitted to the sealing roller.

[0013] In one possible implementation, the outer side of the sealing roller is provided with multiple anti-slip protrusions.

[0014] The beneficial effects of the sterilization and impurity removal device for sterile and dust-free workshops provided by this utility model are as follows: Compared with the prior art, in this utility model, one end of the outer tube is the air inlet, and a through hole is provided on one side of the outer wall of the outer tube. A return air duct is provided inside the outer tube. The side of the return air duct near the air inlet is sealed, and the other end is connected to the air outlet. Multiple air vents are provided on the return air duct. A disinfection lamp is fixed on the return air duct, and a filter roll is inserted from one side of the through hole into the space between the outer tube and the return air duct and exits from the other side of the through hole.

[0015] In practical applications, the disinfection lamp can disinfect the gas, and the filter screen roll can continuously filter the gas without disassembling it during unwinding. This application's device has a high level of integration, thus achieving continuous gas disinfection and filtration, is easy to operate, and has good gas treatment effects. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the sterile and dust-free workshop air sterilization and impurity removal device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram showing the connection between the return air duct and the outer duct in an embodiment of the present invention.

[0018] In the diagram: 1. Outer pipe; 2. Return air pipe; 3. Filter screen roll; 4. Barrier pipe; 5. Ventilation hole; 6. Air inlet pipe; 7. Disinfection lamp; 8. Sealing roller; 9. Blocking roller; 10. Through hole. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Please see Figure 1 and Figure 2 The present invention provides a device for sterilizing and removing impurities from the air in a sterile and dust-free workshop. The device includes: an outer pipe 1, a return air pipe 2, a disinfection lamp 7, and a filter roll 3. One end of the outer pipe 1 is the air inlet, and a through hole 10 is provided on one side of the outer wall of the outer pipe 1. The return air pipe 2 is fitted inside the outer pipe 1, and the side of the return air pipe 2 near the air inlet is sealed, while the other end is used to connect to the air outlet pipe; multiple ventilation holes 5 are provided on the return air pipe 2. The disinfection lamp 7 is fixed to the return air pipe 2. The filter roll 3 passes through one side of the through hole 10 between the outer pipe 1 and the return air pipe 2 and exits from the other side of the through hole 10; the filter roll 3 continuously filters the gas by unwinding and moving inside the outer pipe 1.

[0021] The beneficial effects of the sterilization and impurity removal device for sterile and dust-free workshops provided by this utility model are as follows: Compared with the prior art, in this utility model, one end of the outer tube 1 is the air inlet, and a through hole 10 is provided on one side of the outer wall of the outer tube 1. A return air duct 2 is provided inside the outer tube 1. The side of the return air duct 2 near the air inlet is sealed, and the other end is connected to the air outlet. Multiple air vents 5 are opened on the return air duct 2. A disinfection lamp 7 is fixed on the return air duct 2. The filter roll 3 is inserted from one side of the through hole 10 into the space between the outer tube 1 and the return air duct 2 and exits from the other side of the through hole 10.

[0022] In practical applications, the disinfection lamp 7 can disinfect the gas, and the filter roll 3 can continuously filter the gas without disassembling it during unwinding. This application's device has a high level of integration, thus achieving continuous gas disinfection and filtration, convenient operation, and good gas treatment effect.

[0023] The air inlet end of the outer pipe 1 is connected to the air inlet pipe 6. The gas enters the outer pipe 1 from the air inlet pipe 6 and is finally discharged from the end of the return air pipe 2.

[0024] In some embodiments of the air sterilization and impurity removal device for sterile and dust-free workshops provided in this application, please refer to... Figure 1 and Figure 2 The disinfection lamp 7 is fixed inside the return air duct 2, which is made of transparent material. The return air duct 2 is cylindrical, and its axis coincides with the axis of the outer duct 1. The air inlet pipe 6 is welded to the air inlet end of the outer duct 1 to ensure a tight seal and prevent gas leakage. The filter roll 3 is made of high-strength, corrosion-resistant material, which can effectively filter impurities in the air. Its pore size is precisely designed to ensure good filtration effect without significantly obstructing airflow.

[0025] After the gas enters the outer pipe 1 through the inlet pipe 6, the filter screen 3 filters out impurities in the gas. Inside the return air duct 2, the light emitted by the disinfection lamp 7 disinfects the gas. After disinfection and filtration, the gas is finally discharged from the end of the return air duct 2, achieving the function of sterilizing and removing impurities from the air.

[0026] During operation, staff can determine whether the device is functioning properly by observing the airflow within the return air duct 2 and the working status of the disinfection lamp 7. Furthermore, since the return air duct 2 is made of transparent material, staff can easily check the condition of the filter roll 3 at any time. If the filter roll 3 becomes clogged or its filtration efficiency decreases, it can be unwound and retracted promptly to ensure the device's continuous and efficient operation.

[0027] In different sterile and cleanroom applications, this device can be flexibly adjusted and optimized according to actual needs. For example, for workshops with high air quality requirements, the number of filter rolls 3 can be increased or the material with better filtration effect can be replaced. For workshops with large gas flow rates, the diameter of the inlet pipe 6 and the outer pipe 1 can be increased accordingly to ensure that the gas can pass through the device smoothly and achieve efficient sterilization and impurity removal.

[0028] Meanwhile, with the continuous development of technology, this device can also be further upgraded and improved. For example, an intelligent control system can be introduced to monitor the device's operating parameters in real time, such as gas flow rate, disinfection lamp intensity, and filter roll status, and automatically adjust the device's operating mode based on the monitoring results to achieve the best air treatment effect. It can also be linked with other equipment in the workshop to realize intelligent management of the entire workshop's environmental control system, improving production efficiency and product quality.

[0029] In some embodiments of the air sterilization and impurity removal device for sterile and dust-free workshops provided in this application, please refer to... Figure 1 and Figure 2 There are multiple disinfection lamps 7, which are evenly fixed on the outer side of the return air duct 2.

[0030] Each disinfection lamp 7 has the same power to ensure a uniform disinfection effect across the entire outer surface of the return air duct 2. The synergistic effect of multiple disinfection lamps 7 more effectively kills bacteria, viruses, and other microorganisms in the air within the return air duct 2. Furthermore, these disinfection lamps 7 employ a special spectral design to effectively disinfect common airborne pathogens. To ensure the lifespan and safety of the disinfection lamps 7, their outer shells are made of high-temperature resistant and wear-resistant materials, enabling them to withstand the relatively harsh environmental conditions of a sterile and cleanroom. In addition, these disinfection lamps 7 are securely connected to the return air duct 2 via a robust fixing structure, ensuring that they do not loosen or shift during operation and maintain optimal working condition at all times.

[0031] In some embodiments of the air sterilization and impurity removal device for sterile and dust-free workshops provided in this application, please refer to... Figure 1 and Figure 2 A barrier pipe 4 is provided between the outer pipe 1 and the return air pipe 2. Multiple through holes are provided on the barrier pipe 4. The filter screen roll 3 located inside the outer pipe 1 is attached to the barrier pipe 4.

[0032] The function of the barrier tube 4 is to ensure that the filter roll 3 can be fully unfolded and completely cover the barrier tube 4, preventing unfiltered air from entering the return air duct 2. As the air is continuously purified, the clean air is eventually discharged from the sterile and cleanroom through the return air duct 2, providing a good air environment for the workshop. This structural design not only effectively achieves the function of air sterilization and impurity removal, but also ensures high stability and reliability while maintaining air purification effectiveness, meeting the stringent air quality requirements of the sterile and cleanroom.

[0033] In some embodiments of the air sterilization and impurity removal device for sterile and dust-free workshops provided in this application, please refer to... Figure 1 and Figure 2 The barrier tube 4 is positioned on the outside of the return air duct 2 by multiple retaining rods. One end of each retaining rod is fixedly connected to the barrier tube 4, while the other end fits snugly against the outside of the return air duct 2, ensuring that the barrier tube 4 is stably positioned at a specific location on the outside of the return air duct 2. The multiple retaining rods are evenly distributed, further enhancing the stability of the barrier tube 4's positioning. This structural design effectively ensures the installation accuracy of the barrier tube 4 on the outside of the return air duct 2, providing a solid foundation for subsequent air sterilization and impurity removal functions.

[0034] The air continues to pass through the impurity filtration layer, which consists of a high-precision filter screen that can intercept impurities such as dust and particles in the air.

[0035] In some embodiments of the air sterilization and impurity removal device for sterile and dust-free workshops provided in this application, please refer to... Figure 1The through hole 10 is an elongated hole that extends along the length of the outer tube 1. The main purpose of the through hole 10 is to ensure that the filter screen can be fully extended and enter the outer tube 1. The length of the through hole 10 is matched with the width of the filter screen to ensure airtightness and prevent gas leakage.

[0036] In some embodiments of the air sterilization and impurity removal device for sterile and dust-free workshops provided in this application, please refer to... Figure 1 and Figure 2 A sealing roller 8 is rotatably installed inside the through hole 10. The sealing roller 8 and the two sides of the through hole 10 form a feeding gap and a discharging gap. The filter screen roll 3 enters from the feeding gap and exits from the discharging gap.

[0037] The outer circumferential surface of the sealing roller 8 is uniformly provided with several protrusions. These protrusions exert a certain squeezing effect on the filter screen roll 3 as it passes through the feed gap and discharge gap, allowing it to better fit against the inner wall of the through hole 10, thereby enhancing the sealing effect. During the entire operation of the device, a detection mechanism is also installed to detect the tension of the filter screen roll 3. When the tension of the filter screen roll 3 is detected to be too high or too low, the feed speed or the rotation speed of the winding roller can be adjusted in a timely manner to ensure the stable operation of the device. Furthermore, a cleaning device is installed in the sterile and dust-free workshop to regularly clean components such as the through hole 10 and the sealing roller 8, preventing the accumulation of dust and impurities from affecting the normal operation of the air sterilization and impurity removal device. The cleaning device can use brushes or air nozzles to clean and blow away the surface of the components, ensuring that the device is always in good operating condition and providing continuous and stable air sterilization and impurity removal for the sterile and dust-free workshop.

[0038] In some embodiments of the air sterilization and impurity removal device for sterile and dust-free workshops provided in this application, please refer to... Figure 1 and Figure 2 Two sealing rollers 9 are installed on the outer wall of the outer tube 1. The two sealing rollers 9 are distributed on both sides of the sealing roller 8 and abut against the sealing roller 8. The two sealing rollers 9 form the feeding gap and the discharging gap with the sealing roller 8 respectively.

[0039] The main purpose of the two sealing rollers 9 is to seal the gas leakage in the feed gap and discharge gap caused by the movement of the sealing roller 8. The two sealing rollers 9 are coaxially arranged with the sealing roller 8. A sealing gasket can be set between the sealing roller 9 and the side wall of the outer tube 1, which ultimately achieves a relatively tight seal of the through hole 10 and ensures the airtightness of the entire device.

[0040] In some embodiments of the air sterilization and impurity removal device for sterile and dust-free workshops provided in this application, please refer to... Figure 1 and Figure 2A sealing gasket is provided along the side wall of the through-hole 10, and the sealing gasket is fitted into the sealing roller 9. The sealing gasket is made of a material with good elasticity and sealing properties, effectively preventing air leakage from the gap between the through-hole 10 and the sealing roller 9, ensuring the normal operation of the air sterilization and impurity removal device in the sterile and dust-free workshop. At the same time, this fitted arrangement also helps reduce the impact of vibration generated during device operation on the sealing effect, improving the stability and reliability of the entire device. During long-term use, the sealing gasket may experience a decline in sealing performance due to wear and other reasons, therefore it needs to be inspected and replaced regularly to maintain the sterilization and impurity removal effect of the device and ensure that the air quality in the workshop always meets high standards.

[0041] In some embodiments of the air sterilization and impurity removal device for sterile and dust-free workshops provided in this application, please refer to... Figure 1 and Figure 2 The outer side of the sealing roller 8 is provided with multiple anti-slip protrusions. These anti-slip protrusions are regularly distributed in a circular pattern and are of uniform size. Their presence effectively increases the friction between the sealing roller 8 and other components, ensuring that the sealing roller 8 can function stably during the operation of the device and will not easily slip. This guarantees the sealing performance and stability of the air sterilization and impurity removal device in the sterile and dust-free workshop, providing a reliable guarantee for the entire air treatment process.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for decontaminating and depolluting the air of a sterile clean room, characterized by the fact that it comprises: include: An outer tube, one end of which is an air inlet, and a through hole is provided on one side of the outer wall of the outer tube; A return air duct is fitted inside the outer duct, with one end of the return air duct near the air inlet sealed and the other end connected to the air outlet duct; the return air duct has multiple ventilation holes. The disinfection lamp is fixed on the return air duct. A filter roll is inserted from one side of the through-hole into the space between the outer tube and the return air duct, and exits from the other side of the through-hole; the filter roll is used to continuously filter gas by unwinding and moving inside the outer tube.

2. The sterile clean room air decontamination and impurity removal device of claim 1, wherein, The disinfection lamp is fixed inside the return air duct, which is made of transparent material.

3. The sterile clean room air decontamination and impurity removal device of claim 1, wherein, The number of disinfection lamps is multiple, and the multiple disinfection lamps are evenly fixed on the outer side of the return air duct.

4. The apparatus for decontaminating and purifying air of aseptic and dust-free plant according to claim 1, characterized in that, A barrier pipe is provided between the outer pipe and the return air pipe. The barrier pipe has multiple through holes, and the filter screen roll located inside the outer pipe is attached to the barrier pipe.

5. The apparatus for decontaminating and purifying air in aseptic and clean room according to claim 4, wherein The barrier tube is positioned on the outside of the return air duct by multiple retaining rods.

6. The apparatus for decontaminating and purifying air of aseptic and dust-free plant according to claim 1, characterized in that, The through hole is an elongated hole and is opened along the length of the outer tube.

7. The apparatus for decontaminating and purifying air of aseptic and dust-free plant according to claim 1, characterized in that, A sealing roller is rotatably installed inside the through hole. The sealing roller and the two sides of the through hole form a feeding gap and a discharging gap. The filter screen roll enters through the feeding gap and exits through the discharging gap.

8. The apparatus for decontaminating and purifying air in aseptic and clean room according to claim 7, wherein Two sealing rollers are installed on the outer wall of the outer tube. The two sealing rollers are distributed on both sides of the sealing roller and abut against the sealing roller. The two sealing rollers form the feeding gap and the discharging gap with the sealing roller, respectively.

9. The apparatus for decontaminating and purifying air in aseptic and clean room according to claim 8, wherein A sealing gasket is provided along the side wall of the through hole, and the sealing gasket is fitted to the sealing roller.

10. The apparatus for decontaminating and purifying air in aseptic and clean room according to claim 7, wherein The outer side of the sealing roller is provided with multiple anti-slip protrusions.