A laminar flow operating room ultraviolet air disinfection and air supply system

Abstract

This invention discloses an ultraviolet air disinfection and ventilation system for a laminar flow operating room, relating to the field of air disinfection technology. It includes: an adjustment component comprising a control valve group, a compressor, an air supply module, and an air delivery connector. The air supply module and the air delivery connector are both connected to the control valve group. The air delivery connector is connected to the control valve group via a compressor. The control valve group is connected to a first disinfection component, which consists of a compressed air tank and an ultraviolet module. A fan is located on one side of the adjustment component and is connected to the air delivery connector via an air delivery pipe. A second disinfection component is mounted on the fan. A filter component is located adjacent to the second disinfection component. Throughout the entire process, both ultraviolet light and ozone operate in an unmanned environment, providing ultraviolet light with a no-dead-angle irradiation environment and a smaller irradiation space, fully utilizing the strong penetrability of ozone for more efficient air disinfection.

Description

Technical Field

[0001] This application relates to the field of air disinfection technology, specifically to an ultraviolet air disinfection and air supply system for laminar flow operating rooms. Background Technology

[0002] A laminar flow operating room is an air filtration and circulation system based on laminar flow purification technology. It effectively reduces the content of airborne particles and microorganisms in the surgical area, creating a clean and low-microbial-contamination surgical environment, thereby reducing the risk of surgical infection. It is usually combined with ultraviolet disinfection as an auxiliary means, using the C-band of ultraviolet light (usually 253.7 nanometers) to destroy the DNA structure of microorganisms, preventing them from replicating and surviving, thereby disinfecting the air and object surfaces. In addition, ozone is used to destroy the cell walls of bacteria, viruses, molds and other microorganisms, oxidizing their internal structures such as proteins, RNA and DNA.

[0003] Ultraviolet (UV) light, whether directly applied to an object's surface or transmitted through the air, can quickly and efficiently disinfect areas directly exposed to it. Ozone, on the other hand, has strong penetrability, allowing it to penetrate deep into crevices and disinfect virtually anywhere. However, UV light has blind spots, making it difficult to reach the interior of objects or areas that are shielded. Furthermore, large doses of UV light or prolonged exposure are required for large-scale air disinfection. Additionally, UV light can damage the skin and eyes, while ozone can irritate the respiratory tract, so both require use in unmanned environments.

[0004] In an unoccupied laminar flow operating room, ozone can be used for comprehensive disinfection followed by ventilation. In an occupied laminar flow operating room, the air is first filtered to reduce the content of suspended particles and microorganisms, then disinfected by ultraviolet light, and then sent into the operating room through the air supply system to form laminar flow. However, during long-term operation, dust and microorganisms will gradually accumulate in the filtration system, making it difficult for ultraviolet light to fully irradiate the filtration system for disinfection. The efficiency of the filtration system decreases, and the content of active microorganisms and suspended particles in the air entering the operating room increases, leading to an increased risk of surgical infection.

[0005] Therefore, it is necessary to provide a laminar flow operating room ultraviolet air disinfection and air supply system to solve the problems mentioned in the background art. Summary of the Invention

[0006] To achieve the above objectives, this application provides the following technical solution: a laminar flow operating room ultraviolet air disinfection and air supply system, comprising:

[0007] The regulating component includes a control valve group, a compressor, an air supply module, and an air delivery connector. The air supply module and the air delivery connector are both connected to the control valve group. The air delivery connector is connected to the control valve group via a compressor. The control valve group is connected to a first disinfection component, which consists of a compressed air tank and an ultraviolet module.

[0008] A fan is installed on one side of the regulating component. The fan is connected to the air delivery connector through an air delivery pipe, and a second disinfection component is installed on the fan.

[0009] The second disinfection component consists of an adapter tube and an ozone generating tank. The lower end of the adapter tube is connected to and fixed on the fan, and the upper end of the adapter tube is fixedly provided with the ozone generating tank. The tube wall of the adapter tube is connected to and fixed with an adapter hose, and the ozone generating tank is connected to the adapter hose through a transmission pipe.

[0010] A filter assembly is disposed adjacent to the second disinfection assembly, and the filter assembly consists of a filter chamber, an air collection chamber and a primary filter screen. One end of the filter chamber is connected and fixed to the adapter hose, and the other end of the filter chamber is connected and fixed to the air collection chamber. The primary filter screen is disposed in the air collection chamber.

[0011] Furthermore, as a preferred embodiment, multiple compressed gas tanks are connected in series, the ultraviolet module is fixed on a single compressed gas tank, and each compressed gas tank is equipped with an ultraviolet disinfection lamp, which is connected to the ultraviolet module.

[0012] Furthermore, as a preferred embodiment, the control valve assembly is equipped with a pressure gauge, which is connected to the compressed air tank for pressure monitoring.

[0013] Furthermore, as a preferred embodiment, the air supply module is connected to the compressed air tank via a control valve group, which is used to adjust the air supply volume of the air supply module.

[0014] Furthermore, as a preferred embodiment, there are two ways to connect the compressed air tank and the air delivery connector: one way is that the compressed air tank is connected to the air delivery connector through the control valve group and the compressor, and the other way is that the compressed air tank is directly connected to the air delivery connector through the control valve group.

[0015] Furthermore, as a preferred embodiment, the connection between the control valve group and the compressed air tank and the air delivery connector is a two-way valve, and the control valve group can control the compressed air tank to deliver air in the reverse direction to the air delivery connector.

[0016] Furthermore, as a preferred embodiment, the interior of the fan is only connected to the adapter cylinder and the air delivery pipe, and the connection between the fan and the adapter cylinder and the air delivery pipe is sealed.

[0017] Furthermore, as a preferred embodiment, the filter chamber is provided with multiple layers of filter elements evenly distributed along the axial direction, the ozone generating tank is controlled and operated independently, and the ozone generated by the ozone generating tank is sequentially transported to the filter chamber through the transmission pipe and the adapter hose to disinfect the filter elements.

[0018] Compared with the prior art, this application provides a laminar flow operating room ultraviolet air disinfection and air supply system, which has the following beneficial effects:

[0019] In this application, air is drawn in by a fan. The air first passes through a primary filter to remove some dust and impurities. Then, the air enters a filter chamber for further filtration to remove viruses, microorganisms, and dust. The air is then compressed and stored in a compressed air tank and disinfected with ultraviolet light. The disinfected air is then delivered to the operating room through an air supply module. In addition, the compressed air tank can reverse the flow to deliver air into the filter chamber, while ozone generated by an ozone generator simultaneously enters the filter chamber for disinfection. Throughout the process, both ultraviolet light and ozone operate in an unmanned environment, providing ultraviolet light with a comprehensive irradiation environment and a smaller irradiation space. This fully utilizes the strong penetrability of ozone for more efficient air disinfection. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 A schematic diagram of the overall structure of an ultraviolet air disinfection and air supply system for a laminar flow operating room;

[0022] Figure 2 A schematic diagram of the regulating component structure of an ultraviolet air disinfection and air supply system for a laminar flow operating room;

[0023] Figure 3 A schematic diagram of the second disinfection component of a laminar flow operating room ultraviolet air disinfection and air supply system.

[0024] Figure 4 A schematic diagram of the filter component structure of an ultraviolet air disinfection and air supply system for a laminar flow operating room.

[0025] In the diagram: 1. Adjustment component; 11. Control valve group; 12. Compressor; 13. Pressure gauge; 14. Air supply module; 15. Air delivery connector; 2. Disinfection component one; 21. Compressed air tank; 22. Ultraviolet module; 3. Fan; 31. Air delivery pipe; 4. Disinfection component two; 41. Adapter cylinder; 42. Ozone generating tank; 43. Adapter hose; 44. Transmission pipe; 5. Filter component; 51. Filter chamber; 52. Air collection chamber; 53. Primary filter. Detailed Implementation

[0026] Please see Figures 1-4 In this embodiment of the application, a laminar flow operating room ultraviolet air disinfection and ventilation system includes:

[0027] The regulating component 1 includes a control valve group 11, a compressor 12, an air supply module 14, and an air delivery connector 15. The air supply module 14 and the air delivery connector 15 are both connected to the control valve group 11. The air delivery connector 15 is connected to the control valve group 11 via the compressor 12. The control valve group 11 is connected to a disinfection component 2. The disinfected air is delivered to the operating room through the air supply module 14. The disinfection component 2 consists of a compressed air tank 21 and an ultraviolet module 22.

[0028] A fan 3 is located on one side of the regulating component 1. The fan 3 is connected to the air delivery connector 15 through an air delivery pipe 31, and a disinfection component 4 is provided on the fan 3.

[0029] The second disinfection component 4 consists of an adapter cylinder 41 and an ozone generating tank 42. The lower end of the adapter cylinder 41 is connected to and fixed on the fan 3, and the upper end of the adapter cylinder 41 is fixedly provided with the ozone generating tank 42. The cylinder wall of the adapter cylinder 41 is connected to and fixed with an adapter hose 43. The ozone generating tank 42 is connected to the adapter hose 43 through a transmission pipe 44.

[0030] The filter assembly 5 is arranged adjacent to the disinfection assembly 4, and the filter assembly 5 consists of a filter chamber 51, an air collection chamber 52 and a primary filter screen 53. One end of the filter chamber 51 is connected and fixed to the adapter hose 43, and the other end of the filter chamber 51 is connected and fixed to the air collection chamber 52. The primary filter screen 53 is arranged in the air collection chamber 52.

[0031] It should be explained that the air is drawn in by the operation of the fan 3. The air first passes through the primary filter 53 to filter out some dust and debris. Then the air enters the filter chamber 51 to further filter out viruses, microorganisms and dust. After that, the air is compressed by the compressor 12 and stored in the compressed air tank 21. The air in the compressed air tank 21 is disinfected by ultraviolet light by the ultraviolet module 22. The disinfected air can be regulated by the control valve group 11 and delivered to the operating room through the air supply module 14.

[0032] Additionally, the fan 3 is controlled to run in reverse, and the reverse air is regulated by the control valve group 11 to enter the filter chamber 51. At the same time, the ozone generator 42 is started to generate ozone. The generated ozone enters the filter chamber 51 for disinfection under the drive of the reverse air.

[0033] In a preferred embodiment, multiple compressed air tanks 21 are connected in series, and the ultraviolet module 22 is fixed on a single compressed air tank 21. Each compressed air tank 21 is equipped with an ultraviolet disinfection lamp, and the ultraviolet disinfection lamp is connected to the ultraviolet module 22.

[0034] It should be explained that ultraviolet disinfection is carried out in the compressed air tank 21. The compressed air has a smaller volume, and the smooth interior of the compressed air tank 21 with no dead corners can effectively avoid the disadvantages of ultraviolet irradiation disinfection. Moreover, the air is compressed and stored for disinfection in the compressed air tank 21, which can increase the air disinfection time and further improve the disinfection quality compared to disinfection by direct airflow.

[0035] In a preferred embodiment, the control valve assembly 11 is equipped with a pressure gauge 13, which is connected to the compressed air tank 21 for pressure monitoring. The pressure gauge 13 monitors the pressure value inside the compressed air tank 21 to assist in the adjustment of the control valve assembly 11, the fan 3, and the ozone generating tank 42.

[0036] In a preferred embodiment, the air supply module 14 is connected to the compressed air tank 21 via a control valve group 11, which is used to adjust the air supply volume of the air supply module 14.

[0037] As a preferred embodiment, there are two ways to connect the compressed air tank 21 and the air delivery connector 15. One way is that the compressed air tank 21 is connected to the air delivery connector 15 through the control valve group 11 and the compressor 12. The other way is that the compressed air tank 21 is directly connected to the air delivery connector 15 through the control valve group 11.

[0038] In a preferred embodiment, the control valve assembly 11 is a two-way valve at the connection between the compressed air tank 21 and the air delivery connector 15, and the control valve assembly 11 can control the compressed air tank 21 to deliver air in the reverse direction to the air delivery connector 15.

[0039] In a preferred embodiment, the interior of the fan 3 is only connected to the adapter cylinder 41 and the air delivery pipe 31, and the connection between the fan 3 and the adapter cylinder 41 and the air delivery pipe 31 is sealed.

[0040] It should be explained that the air pressure in the compressed air tank 21 can adjust the operating power of the blower 3. When the air pressure in the compressed air tank 21 reaches its maximum value, the compressed air tank 21 can be controlled to send air in reverse to the air delivery connector 15 through the control valve group 11, and the blower 3 can be controlled to rotate in reverse. The ozone generating tank 42 can also be started to disinfect the inside of the filter chamber 51.

[0041] It should be explained that when the ozone generating tank 42 is working, the compressed air tank 21 supplies air in reverse at low pressure to ensure that the ozone is retained in the filter chamber 51 for a longer period of time for thorough disinfection. The ozone disinfection fully utilizes the high permeability of ozone to disinfect the filter chamber 51 where viruses and other substances accumulate. At the same time, the ozone does not enter the operating room and does not come into contact with the human body.

[0042] In a preferred embodiment, multiple layers of filter elements are evenly distributed along the axial direction in the filter chamber 51. The ozone generating tank 42 is controlled and operated independently, and the ozone generated by the ozone generating tank 42 is sequentially transported to the filter chamber 51 through the transmission pipe 44 and the adapter hose 43 to disinfect the filter elements. The multiple layers of filter elements form a HEPA filter, which can filter out bacteria, viruses and other microorganisms to ensure that the air entering the operating room is highly pure.

[0043] It should be explained that the compressed air tank 21 can also supply air in reverse at a short time under high pressure to blow out viruses and other contaminants accumulated on the filter element. Additionally, the primary filter 53 is located on the outermost layer for easy replacement.

[0044] In practice, air is drawn in by the operation of fan 3. The air first passes through primary filter 53 to filter out some dust and impurities. Then, the air enters filter chamber 51 to further filter out viruses, microorganisms, and dust. After that, the air is compressed and stored in compressed air tank 21 and disinfected with ultraviolet light. The disinfected air is then delivered to the operating room through air supply module 14. In addition, compressed air tank 21 can reverse the flow of air into filter chamber 51. At the same time, ozone generated by ozone generator 42 enters filter chamber 51 for disinfection. Throughout the process, ultraviolet light and ozone work in an unmanned environment, providing an environment with no dead angles for ultraviolet light irradiation and a smaller irradiation space, giving full play to the strong penetrability of ozone, and disinfecting the air more efficiently.

[0045] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and application concept of this application, should be included within the scope of protection of this application.

Claims

1. A laminar flow operating room ultraviolet air disinfection and ventilation system, characterized in that, include: The regulating component (1) includes a control valve group (11), a compressor (12), an air supply module (14), and an air delivery connector (15). The air supply module (14) and the air delivery connector (15) are both connected to the control valve group (11). The air delivery connector (15) is connected to the control valve group (11) via the compressor (12). The control valve group (11) is connected to a disinfection component (2), which consists of a compressed air tank (21) and an ultraviolet module (22). A fan (3) is located on one side of the regulating component (1). The fan (3) is connected to the air delivery connector (15) through an air delivery pipe (31), and a disinfection component (4) is provided on the fan (3). The second disinfection component (4) consists of an adapter tube (41) and an ozone generating tank (42). The lower end of the adapter tube (41) is connected to and fixed on the fan (3), and the upper end of the adapter tube (41) is fixedly provided with the ozone generating tank (42). The tube wall of the adapter tube (41) is connected to and fixed with an adapter hose (43). The ozone generating tank (42) is connected to the adapter hose (43) through a transmission pipe (44). The filter assembly (5) is arranged adjacent to the second disinfection assembly (4), and the filter assembly (5) is composed of a filter chamber (51), an air collection chamber (52) and a primary filter screen (53). One end of the filter chamber (51) is connected and fixed to the adapter hose (43), and the other end of the filter chamber (51) is connected and fixed to the air collection chamber (52). The primary filter screen (53) is arranged inside the air collection chamber (52). Multiple compressed gas tanks (21) are connected in series and interconnected. The ultraviolet module (22) is fixed on a single compressed gas tank (21). Each compressed gas tank (21) is equipped with an ultraviolet disinfection lamp, and the ultraviolet disinfection lamp is connected to the ultraviolet module (22). There are two ways to connect the compressed air tank (21) to the air delivery connector (15). One way is that the compressed air tank (21) is connected to the air delivery connector (15) through the control valve group (11) and the compressor (12). The other way is that the compressed air tank (21) is directly connected to the air delivery connector (15) through the control valve group (11).

2. The laminar flow operating room ultraviolet air disinfection and ventilation system according to claim 1, characterized in that, The control valve assembly (11) is equipped with a pressure gauge (13), which is connected to the compressed air tank (21) for pressure monitoring.

3. The laminar flow operating room ultraviolet air disinfection and ventilation system according to claim 1, characterized in that, The air supply module (14) is connected to the compressed air tank (21) through the control valve group (11), and the control valve group (11) is used to adjust the air supply volume of the air supply module (14).

4. The laminar flow operating room ultraviolet air disinfection and ventilation system according to claim 3, characterized in that, The control valve group (11) is a two-way valve at the connection between the compressed air tank (21) and the air delivery connector (15). The control valve group (11) can control the compressed air tank (21) to deliver air to the air delivery connector (15) in the reverse direction.

5. The laminar flow operating room ultraviolet air disinfection and ventilation system according to claim 1, characterized in that, The fan (3) is connected only to the adapter cylinder (41) and the air delivery pipe (31), and the connection between the fan (3) and the adapter cylinder (41) and the air delivery pipe (31) is sealed.

6. The laminar flow operating room ultraviolet air disinfection and ventilation system according to claim 1, characterized in that, The filter chamber (51) is equipped with multiple layers of filter elements evenly distributed along the axial direction. The ozone generating tank (42) is controlled and operated independently. The ozone generated by the ozone generating tank (42) is transported to the filter chamber (51) through the transmission pipe (44) and the adapter hose (43) in sequence to disinfect the filter elements.

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