Disinfecting and killing system

Abstract

The utility model provides a disinfecting and killing system. The disinfecting and killing system comprises a chemical disinfecting and killing device and an air treatment device, the air treatment device is provided with a fresh air opening, a return air opening and a first air outlet, the fresh air opening is used for being connected with outdoor atmosphere, the return air opening is used for being connected with a target space through a return air pipeline, and the first air outlet is used for being connected with the target space; the chemical disinfection device is provided with an air inlet and a second air outlet, the air inlet is used for being connected with the target space through the air return pipeline, and the second air outlet is used for being connected with the target space; and the air treatment device and the chemical disinfection device are linked and configured to alternatively operate. According to the configuration, the chemical disinfection device and the air treatment device are integrated, and the chemical disinfection device and the air treatment device are in linkage configuration to alternatively operate, so that the defects existing when the chemical disinfection device and the air treatment device operate at the same time are overcome, and the energy-saving performance and the reliability are effectively improved.

Description

Technical Field

[0001] This utility model relates to the fields of air conditioning and ventilation technology and chemical disinfection technology, and in particular to a disinfection system. Background Technology

[0002] In industries such as pharmaceuticals, food, and electronics, microbial control in cleanrooms is crucial. Even tiny molds, spores, or other highly resistant microorganisms can severely impact product quality and production efficiency. Therefore, employing an effective disinfection system is key to ensuring cleanroom environments meet standards. To ensure the cleanroom environment reaches the required cleanliness levels, two common approaches are physical ventilation and chemical disinfection.

[0003] Physical ventilation and purification, and chemical disinfection, are two separate sub-sectors. Physical ventilation and purification fall under the HVAC field and typically involves adding filters, ultraviolet light, and electrostatic modules to the air conditioning unit, maintaining room cleanliness through positive pressure. Chemical disinfection, on the other hand, is usually achieved through spray disinfection.

[0004] In practical applications, physical ventilation purification and chemical disinfection often overlap because they belong to different sub-sectors. However, applying chemical disinfection simultaneously with physical ventilation purification has several drawbacks. First, physical ventilation reduces the concentration of the chemical disinfection spray and decreases its uniformity of distribution indoors, leading to a decrease in disinfection effectiveness. Second, the simultaneous operation of physical ventilation and chemical disinfection also results in energy waste. Utility Model Content

[0005] The purpose of this invention is to provide a disinfection system to solve the problem of reduced disinfection effect and energy waste caused by the lack of integration and linkage between existing physical ventilation purification and chemical disinfection.

[0006] To solve the above-mentioned technical problems, this utility model provides a disinfection system, which includes: a chemical disinfection device and an air handling device;

[0007] The air handling unit has a fresh air inlet, a return air inlet and a first air outlet. The fresh air inlet is used to connect to the outdoor atmosphere, the return air inlet is used to connect to the target space through a return air duct, and the first air outlet is used to connect to the target space.

[0008] The chemical disinfection device has an air inlet and a second air outlet. The air inlet is used to connect to the target space through the return air duct, and the second air outlet is used to connect to the target space.

[0009] The air handling unit and the chemical disinfection unit are configured to operate in a linked manner, with one of them operating at a time.

[0010] Optionally, the chemical disinfection device includes a housing, a chemical agent module, and a fan module; the air inlet and the second air outlet are opened on the housing, and the chemical agent module and the fan module are housed inside the housing;

[0011] When the chemical disinfection device is in operation, the fan module drives the airflow to flow into the housing from the air inlet, and after flowing through the agent module, it flows out from the second air outlet.

[0012] Optionally, the agent module contains an agent, which is atomized and dispersed when the chemical disinfection device is in operation.

[0013] Optionally, the chemical disinfection device further includes a partition that divides the internal space of the housing into a first chamber and a second chamber. The air inlet is located in the portion of the housing corresponding to the first chamber, and the second air outlet is located in the portion of the housing corresponding to the second chamber. The agent module is disposed in the first chamber. The partition has a connecting port, and the fan module is disposed in the second chamber and communicates with the first chamber through the connecting port.

[0014] Optionally, the chemical disinfection device includes a constant air volume valve, which is located at the second air outlet; when the chemical disinfection device is in operation, the air volume flowing out of the second air outlet is limited by the constant air volume valve.

[0015] Optionally, the air inlet is configured to be closed when the chemical disinfection device is turned off.

[0016] Optionally, the disinfection system further includes a swirl diffuser, which is installed in the target space, and the second air outlet is connected to the swirl diffuser via a disinfection pipeline.

[0017] Optionally, the fresh air vent is configured to be closed when the air handling unit is turned off.

[0018] Optionally, the return air vent is configured to be closed when the air handling unit is turned off.

[0019] Optionally, the chemical disinfection device has multiple air inlets and multiple second air outlets.

[0020] In summary, the disinfection system provided by this utility model includes: a chemical disinfection device and an air handling unit; the air handling unit has a fresh air inlet, a return air inlet, and a first air outlet, the fresh air inlet being used to connect to the outdoor atmosphere, the return air inlet being used to connect to the target space through a return air duct, and the first air outlet being used to connect to the target space; the chemical disinfection device has an air inlet and a second air outlet, the air inlet being used to connect to the target space through the return air duct, and the second air outlet being used to connect to the target space; wherein, the air handling unit and the chemical disinfection device are linked and configured to operate selectively.

[0021] This configuration integrates the chemical disinfection device and the air handling unit, allowing them to operate in a coordinated manner with one operating independently. This overcomes the shortcomings of operating the chemical disinfection device and the air handling unit simultaneously, effectively improving energy efficiency and reliability. Attached Figure Description

[0022] Those skilled in the art will understand that the accompanying drawings are provided to better understand the present invention and do not constitute any limitation on the scope of the present invention.

[0023] Figure 1 This is a schematic diagram of the disinfection system according to an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the disinfection system of this utility model during the operation of the air handling unit.

[0025] Figure 3 This is a schematic diagram of the disinfection system of this utility model during the operation of the chemical disinfection device.

[0026] Figure 4 This is a schematic diagram of the chemical disinfection device according to an embodiment of the present invention.

[0027] In the attached diagram: 1-Chemical disinfection device; 10-Shell; 101-First chamber; 102-Second chamber; 11-Air inlet; 12-Second air outlet; 13-Agent module; 14-Fan module; 15-Separator; 16-Constant air volume valve; 2-Air handling unit; 21-Fresh air inlet; 22-Return air inlet; 23-First air outlet; 31-Return air duct; 32-Disinfection duct; 4-Target space; 5-Swirl diffuser. Detailed Implementation

[0028] To make the objectives, advantages, and features of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to facilitate and clarify the explanation of the objectives of the embodiments of this utility model. Furthermore, the structures shown in the drawings are often part of the actual structure. In particular, different drawings may emphasize different aspects and sometimes use different scales.

[0029] As used in this invention, the singular forms “a,” “an,” “one,” and “the” include plural objects; the term “or” is generally used to mean “and / or”; the term “a number” is generally used to mean “at least one”; and the term “at least two” is generally used to mean “two or more”. Furthermore, the terms “first,” “second,” and “third” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first,” “second,” or “third” may explicitly or implicitly include one or at least two of that feature; “one end” and “the other end,” and “proximal end” and “distal end” generally refer to two corresponding parts, which include not only endpoints. Furthermore, the terms "installed," "connected," and "attached," as used in this utility model, and the term "set" on one element from another, should be interpreted broadly. They generally only indicate a connection, coupling, cooperation, or transmission relationship between the two elements, which can be direct or indirect through an intermediate element. They should not be construed as indicating or implying a spatial positional relationship between the two elements, meaning one element can be located inside, outside, above, below, or to one side of the other element, unless otherwise explicitly stated. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances. Additionally, directional terms such as above, below, up, down, upward, downward, left, and right are used relative to exemplary embodiments as shown in the figures, with upward or up direction pointing towards the top of the corresponding figure, and downward or down direction pointing towards the bottom of the corresponding figure.

[0030] The purpose of this invention is to provide a disinfection system to solve the problem of reduced disinfection effectiveness and energy waste caused by the lack of integration and linkage between existing physical ventilation purification and chemical disinfection. The following description refers to the accompanying drawings.

[0031] Please refer to Figure 1This utility model provides a disinfection system, which includes a chemical disinfection device 1 and an air handling device 2. The air handling device 2 has a fresh air inlet 21, a return air inlet 22, and a first air outlet 23. The fresh air inlet 21 is used to connect to the outdoor atmosphere, the return air inlet 22 is used to connect to a target space 4 through a return air duct 31, and the first air outlet 23 is used to connect to the target space 4. The chemical disinfection device 1 has an air inlet 11 and a second air outlet 12. The air inlet 11 is used to connect to the target space 4 through the return air duct 31, and the second air outlet 12 is used to connect to the target space 4. The air handling device 2 and the chemical disinfection device 1 are linked and configured to operate selectively.

[0032] The disinfection system provided in this embodiment can be applied in fields such as medicine, hospital wards, electronics factories, and schools. The target space 4 refers to the space or room that needs to be purified and disinfected, such as a cleanroom. Generally, the target space 4 is isolated from the outdoor atmosphere, and its internal parameters such as temperature, humidity, and cleanliness can be adjusted by the equipment.

[0033] Please refer to Figure 2 In this embodiment, the air handling unit 2 can be used to modulate parameters such as temperature, humidity, and cleanliness of the target space 4. The air handling unit 2 draws air from the target space 4 through the return air duct 31, modulates its temperature, humidity, and cleanliness, and then sends it into the target space 4 through the first air outlet 23. Furthermore, in some scenarios, it is necessary to replace the air in the target space 4 to a certain extent. For example, when personnel are active and a certain oxygen content needs to be maintained, or when exhaust gases or pollutants are generated in the target space 4, ventilation is needed to reduce the concentration of exhaust gases. In such cases, the air handling unit 2 can draw in fresh outdoor air through the fresh air inlet 21, modulate its temperature, humidity, and cleanliness, and then send it into the target space 4 through the first air outlet 23. Optionally, the air drawn from the return air duct 31 can be used for total heat exchange with the fresh air drawn in from the fresh air inlet 21 to reduce energy consumption.

[0034] Optionally, the air handling unit 2 includes physical disinfection and filtration modules such as filters (e.g., HEPA filters), ultraviolet modules, and electrostatic dust removal modules. The filters remove dust and microorganisms from the air, the ultraviolet modules kill microorganisms, and the electrostatic dust removal modules use an electrostatic field to capture dust and kill bacteria and other microorganisms. The target space 4 is generally under positive pressure relative to the outside atmosphere, with its internal pressure slightly higher than the outside atmosphere. Clean air within the target space 4 flows out through gaps in doors and windows, pipe joints, etc., ensuring that outside air does not flow into the target space 4, thereby maintaining the cleanliness of the target space 4.

[0035] Understandably, air handling unit 2 is a physical disinfection and filtration system, which cannot effectively disinfect microorganisms adhering to objects (such as tables, chairs, walls, floors, workbenches, and equipment) in the target space 4. Therefore, in some application scenarios, chemical disinfection is also required inside the target space 4, such as using disinfectant spray fumigation. The disinfectant is atomized into tiny particles and sprayed evenly inside the target space 4 to kill microorganisms in the air and ensure a more comprehensive and thorough disinfection effect.

[0036] Please refer to Figure 3 In this embodiment, a chemical disinfection device 1 can be used to chemically disinfect the target space 4. When the chemical disinfection device 1 is operating, it draws air from the target space 4 through the return air duct 31, sprays disinfectant into the device, and then sends the atomized disinfectant into the target space 4 through the second air outlet 12. After a period of circulation, the atomized disinfectant can fill the target space 4, providing comprehensive chemical disinfection.

[0037] Because the air handling unit 2 and the chemical disinfection unit 1 are linked and configured to operate selectively—meaning only one unit operates at a time—when the chemical disinfection unit 1 is operating, the air handling unit 2 is shut down and will not regulate the temperature and humidity of the target space 4, nor will it introduce fresh air. The air in the entire target space 4 circulates internally only through the chemical disinfection unit 1, reducing or preventing the loss of disinfectant due to positive pressure. Simultaneously, shutting down the air handling unit 2 also reduces energy consumption. When the air handling unit 2 is operating, the chemical disinfection unit 1 is shut down, ensuring that disinfectant does not flow into the target space 4 during this period, allowing personnel to remain in the target space 4 and ensuring safety. Furthermore, the air handling unit 2 and the chemical disinfection unit 1 are organically integrated and can be configured in one go during the HVAC installation project, reducing the difficulty of later maintenance and use.

[0038] To integrate the air handling unit 2 and the chemical disinfection unit 1 for easy one-time installation in the HVAC installation project, the air handling unit 2 and the chemical disinfection unit 1 can share the return air duct 31 to draw air from the target space 4. One end of the return air duct 31 opens into the target space 4, and the other end is connected to the return air inlet 22 of the air handling unit 2 and the air inlet 11 of the chemical disinfection unit 1.

[0039] Please refer to Figure 4In an alternative example, the chemical disinfection device 1 includes a housing 10, a chemical module 13, and a fan module 14; the air inlet 11 and the second air outlet 12 are formed on the housing 10, and the chemical module 13 and the fan module 14 are housed within the housing 10; when the chemical disinfection device 1 is in operation, the fan module 14 drives airflow from the air inlet 11 into the housing 10, flows through the chemical module 13, and then flows out from the second air outlet 14.

[0040] The chemical disinfection device 1 may be equipped with a built-in fan module 14, which can operate independently of the air handling unit 2 to drive airflow circulation. Optionally, the agent module 13 contains a chemical agent, which is atomized and dispersed when the chemical disinfection device 1 is operating. The chemical agent can be, for example, hydrogen peroxide, hypochlorous acid, hypochlorite, etc., and can be selected according to the actual application scenario.

[0041] In one example, the chemical disinfection device 1 further includes a partition 15, which divides the internal space of the housing 10 into a first chamber 101 and a second chamber 102. An air inlet 11 is located on the portion of the housing 10 corresponding to the first chamber 101, and a second air outlet 12 is located on the portion of the housing 10 corresponding to the second chamber 102. The agent module 13 is disposed in the first chamber 101. The partition 15 has a connecting port, and the fan module 14 is disposed in the second chamber 102 and communicates with the first chamber 101 through the connecting port. The partition 15 divides the internal space of the housing 10 into two chambers, the first chamber 101 and the second chamber 102. One chamber is used to house the agent module 13, facilitating its loading, replacement, and maintenance. The other chamber is used to house the fan module 14. Furthermore, the fan module 14 is located downstream of the airflow from the agent module 13, which helps improve the uniformity of the atomized agent flow.

[0042] Optionally, the chemical disinfection device 1 includes a constant air volume valve 16, which is disposed at the second air outlet 12. When the chemical disinfection device 1 is operating, the air volume flowing out of the second air outlet 12 is limited by the constant air volume valve 16. The constant air volume valve 16 ensures that the disinfection air volume is constant when the chemical disinfection device 1 is operating.

[0043] Optional, please continue to refer to Figure 1 and Figure 3The disinfection system also includes a swirl diffuser 5, which is installed in the target space 4. The second air outlet 12 is connected to the swirl diffuser 5 via the disinfection pipe 32. The swirl diffuser 5 can improve the uniformity of the disinfection airflow, allowing the disinfection airflow to disperse into the target space 4 as quickly as possible.

[0044] Optionally, when the air handling unit 2 is turned off, the fresh air inlet 21 is configured to be closed. In one embodiment, a damper may be provided on the fresh air inlet 21. When the air handling unit 2 is turned off, the damper on the fresh air inlet 21 can be configured to be closed to cut off the connection between the fresh air inlet 21 and the outdoor atmosphere, reduce the exchange between the target space 4 and the outside atmosphere, further reduce the leakage of chemicals during the operation of the chemical disinfection device 1, and improve the disinfection efficiency.

[0045] Optionally, the return air vent 22 is configured to be closed when the air handling unit 2 is turned off. Since both the air inlet 11 of the chemical disinfection device 1 and the return air vent 22 of the air handling unit 2 are connected to the return air duct 31, meaning they share the same return air duct 31, the chemical disinfection device 1 may draw air from the return air vent 22 when it is operating and the air handling unit 2 is turned off. Therefore, it is preferable to configure the return air vent 22 to be closed when the air handling unit 2 is turned off to avoid backdraft. In one embodiment, a damper can be installed on the return air vent 22 to control its opening or closing. Similarly, when the air handling unit 2 is operating and the chemical disinfection device 1 is turned off, the air inlet 11 can be configured to be closed, and the air handling unit 2 will not draw back air from the chemical disinfection device 1 through the air inlet 11, thus preventing leakage of the disinfectant and potential hazards.

[0046] For preferred options, please refer to [the provided text]. Figure 4 The chemical disinfection device 1 has multiple air inlets 11 and multiple second air outlets 12. The multiple air inlets 11 and multiple second air outlets 12 can be evenly arranged in the target space 4 through corresponding pipelines to further improve the uniformity and distribution efficiency of the disinfection airflow.

[0047] In summary, the disinfection system provided by this utility model includes: a chemical disinfection device and an air handling unit; the air handling unit has a fresh air inlet, a return air inlet, and a first air outlet, the fresh air inlet being connected to the outdoor atmosphere, the return air inlet being connected to the target space via a return air duct, and the first air outlet being connected to the target space; the chemical disinfection device has an air inlet and a second air outlet, the air inlet being connected to the target space via the return air duct, and the second air outlet being connected to the target space; wherein, the air handling unit and the chemical disinfection device are linked and configured to operate selectively. This configuration, by integrating the chemical disinfection device and the air handling unit and configuring them to operate selectively, overcomes the shortcomings of simultaneous operation of the chemical disinfection device and the air handling unit, effectively improving energy efficiency and reliability.

[0048] It should be noted that the above embodiments can be combined with each other. The above description is only a description of preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the present utility model.

Claims

1. A disinfection system, characterized in that, include: Chemical disinfection equipment and air handling equipment; The air handling unit has a fresh air inlet, a return air inlet and a first air outlet. The fresh air inlet is used to connect to the outdoor atmosphere, the return air inlet is used to connect to the target space through a return air duct, and the first air outlet is used to connect to the target space. The chemical disinfection device has an air inlet and a second air outlet. The air inlet is used to connect to the target space through the return air duct, and the second air outlet is used to connect to the target space. The air handling unit and the chemical disinfection unit are configured to operate in a linked manner, with one of them operating at a time.

2. The disinfection system according to claim 1, characterized in that, The chemical disinfection device includes a housing, a chemical agent module, and a fan module; the air inlet and the second air outlet are located on the housing, and the chemical agent module and the fan module are housed within the housing; When the chemical disinfection device is in operation, the fan module drives the airflow to flow into the housing from the air inlet, and after flowing through the agent module, it flows out from the second air outlet.

3. The disinfection system according to claim 2, characterized in that, The agent module contains an agent, which is atomized and dispersed when the chemical disinfection device is in operation.

4. The disinfection system according to claim 2, characterized in that, The chemical disinfection device further includes a partition that divides the internal space of the housing into a first chamber and a second chamber. The air inlet is located in the portion of the housing corresponding to the first chamber, and the second air outlet is located in the portion of the housing corresponding to the second chamber. The agent module is located in the first chamber. The partition has a connecting port, and the fan module is located in the second chamber and communicates with the first chamber through the connecting port.

5. The disinfection system according to claim 1, characterized in that, The chemical disinfection device includes a constant air volume valve, which is located at the second air outlet. When the chemical disinfection device is in operation, the air volume flowing out of the second air outlet is limited by the constant air volume valve.

6. The disinfection system according to claim 1, characterized in that, When the chemical disinfection device is turned off, the air inlet is configured to be closed.

7. The disinfection system according to claim 1, characterized in that, The disinfection system also includes a swirl diffuser, which is installed in the target space, and the second air outlet is connected to the swirl diffuser through a disinfection pipeline.

8. The disinfection system according to claim 1, characterized in that, When the air handling unit is turned off, the fresh air vent is configured to be closed.

9. The disinfection system according to claim 1, characterized in that, When the air handling unit is turned off, the return air vent is configured to be closed.

10. The disinfection system according to claim 1, characterized in that, The chemical disinfection device has multiple air inlets and multiple second air outlets.

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