A dust removal and disinfection integrated device

Abstract

This utility model relates to an integrated dust removal and disinfection device, belonging to the field of cleaning and disinfection technology for laboratory animal husbandry equipment. It aims to solve the problems of existing IVC cage cleaning equipment, such as functional separation, susceptibility to secondary contamination, and lack of pipeline blockage feedback. The device includes a housing containing independent dust removal and disinfection pipeline systems, and a pipeline switching component to control their operation. It also includes a dust removal module (with a dust collection device and a dust removal fan), a disinfection module (with a liquid storage device and a vaporization component), and a detection and control component with blockage detection and alarm components. It can achieve single-function dust removal, single-function disinfection, and integrated dust removal and disinfection operation. It can detect pipeline blockage and trigger an alarm. The dust collection device is equipped with a vibrating filter. This device is multi-functional, simplifying operation, improving efficiency, protecting equipment, and extending component lifespan.

Description

Technical Field

[0001] This utility model relates to the field of disinfection and sterilization equipment technology, and in particular to an integrated dust removal and disinfection device for laboratory animal breeding products (such as IVC cages). Background Technology

[0002] Vaporized hydrogen peroxide (VHP), as a highly efficient surface sterilizer, has been widely used in the disinfection of laboratory animal housing equipment. However, due to its limited penetration ability, the surface must be cleaned before disinfection to ensure complete exposure. For IVC cages that are prone to dust generation and have small-diameter piping, manual cleaning is difficult to cover hidden parts such as main and secondary pipes, resulting in incomplete cleaning.

[0003] In the existing technology, some equipment only has a single dust removal function (such as CN202321754445.X), which requires additional disinfection equipment, making operation cumbersome and the process discontinuous; some integrated equipment (such as CN202210328554.9) uses the same pipeline for dust suction and dust discharge, which can easily lead to residual dust in the pipeline causing secondary pollution; other equipment (such as CN202510054680.3) uses physical wiping cleaning, which has cleaning dead corners and a low level of disinfection effect.

[0004] In addition, existing equipment generally suffers from problems such as inconvenient dust filter replacement, lack of self-cleaning function leading to short lifespan, lack of pipeline blockage feedback mechanism, and insufficient air volume affecting dust removal effect, which urgently need to be improved. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as limited functionality, cumbersome operation, blind spots in cleaning and the risk of secondary pollution, as well as the lack of filter self-cleaning and pipeline blockage alarms. This invention provides an integrated dust removal and disinfection device that integrates a dual pipeline system for dust removal and disinfection, combined with filter vibration self-cleaning and branch pressure differential blockage detection alarm functions, to achieve integrated and fully automatic cleaning and disinfection operations.

[0006] To achieve the above-mentioned objectives, this utility model adopts the following technical solution: A dust removal and disinfection integrated device includes: The casing contains a dust removal pipeline system and a disinfection pipeline system; The dust removal module includes a dust collection device and a dust removal fan. The dust collection device is connected to the return air inlet of the dust removal pipeline system and the air inlet of the dust removal fan. The disinfection module includes a liquid storage device, a vaporization component, a disinfection fan, and a drying chamber. The liquid storage device is connected to the disinfection pipeline system through the vaporization component. The outlet side of the disinfection fan is connected to the disinfection pipeline system, and the inlet side of the disinfection fan is connected to the return air port of the dust removal pipeline system. A pipeline switching assembly is used to switch the return air inlet of the dust removal pipeline system and the air outlet of the disinfection pipeline system. The pipeline switching assembly includes a second differential pressure switch and a pressure relief valve. The second differential pressure switch and the pressure relief valve are installed on the branch at the air inlet end of the dust removal fan. The second differential pressure switch is electrically connected to the control system. The control system is electrically connected to the pipeline switching component, dust removal module, and disinfection module.

[0007] Furthermore, the pipeline switching assembly also includes a check valve, which is installed on the outlet side of the disinfection fan, and a fourth filter is provided at the inlet end of the branch of the dust removal fan.

[0008] Furthermore, the dust collection device includes a dust collection bin, a vibrating component, and a fifth filter. The vibrating component is located at the bottom of the dust collection bin, the fifth filter is located inside the dust collection bin, and the vibrating component is electrically connected to the control system.

[0009] Furthermore, the pipeline switching assembly also includes a first electric valve and a second electric valve. The second electric valve is located at the return air inlet of the dust removal pipeline system, and the first electric valve is located at the air outlet of the disinfection pipeline system.

[0010] Furthermore, the vaporization assembly includes a vaporizer, a heating element, a temperature sensor, and a vaporization chamber. The liquid inlet of the vaporizer is connected to a liquid storage device. The heating element is mounted on the vaporizer and is electrically connected to the control system. The air outlet of the vaporizer is connected to the vaporization chamber, and the vaporization chamber is connected to the disinfection pipeline system. The temperature sensor is located at the air outlet of the disinfection pipeline system.

[0011] Furthermore, the disinfection module also includes a drying device, which is located on the circulation path of the disinfection pipeline system to dehumidify the airflow in the pipeline.

[0012] Furthermore, a third filter is installed at the air outlet of the dust removal fan.

[0013] Furthermore, the liquid storage device is equipped with a liquid level detection component, which is electrically connected to the control system.

[0014] Furthermore, a first differential pressure switch is installed on the disinfection pipeline system.

[0015] Furthermore, it also includes a connection interface for detachably connecting the air duct to the IVC cage.

[0016] Compared with the prior art, the beneficial effects of this utility model are mainly reflected in: 1. Multi-functional, improving efficiency and economy: This utility model integrates dust removal and disinfection functions into one unit, enabling three modes: dust removal alone, disinfection alone, or combined dust removal and disinfection. This reduces the number of equipment required and the space occupied, thus lowering costs. Simultaneously, by combining two previously separate processes into one and automating the control, the operation process is greatly simplified, significantly improving work efficiency.

[0017] 2. Optimize pipeline design to avoid secondary pollution: By setting up independent dust removal and disinfection pipelines and using electric valves to switch according to operation, the risk of secondary pollution that may be caused by pipeline reuse is fundamentally avoided, ensuring the reliability of disinfection effect.

[0018] 3. Intelligent detection and self-maintenance enhance reliability: The unique branch pressure differential anti-clogging structure automatically opens the pressure relief valve on the branch when blockage occurs. Ambient air enters the branch through the fourth filter and then reaches the dust removal fan, protecting core components such as the fan while ensuring dust removal efficiency. After dust removal, the vibrator automatically cleans the filter, effectively extending its service life and reducing maintenance costs and the frequency of manual intervention. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 yes Figure 1 Another perspective view; Figure 3 This is a structural diagram of the dust removal module of this utility model; Figure 4 This is a structural diagram of the disinfection module of this utility model; Figure 5 This is a structural diagram of the vaporization component of this utility model; Figure 6 This is a structural diagram of the dust collector fan inlet assembly of this utility model; Figure 7 This is a detailed drawing of the disinfection module of this utility model.

[0020] In the diagram: 1. Shell; 2. Dust removal piping system; 3. Disinfection piping system; 4. Pipeline switching component; 5. Dust removal module; 6. Disinfection module; 7. Control system; 8. Three-color alarm light; 9. Printer; 10. Catalytic decomposer; 11. Dust collection chamber; 12. Liquid storage chamber; 21. First tee pipe; 22. Pressure relief valve; 23. Second tee pipe; 24. Third filter; 25. Fourth filter; 31. Drying oven; 32. Second filter; 33. First filter; 61. Liquid storage bottle; 62. Vaporizer; 63. Temperature sensor; 64. Weighing sensor; 65. Peristaltic pump; 66. Vaporization chamber; 67. Sterilization fan; 41. First electric valve; 42. Second electric valve; 43. Check valve; 44. First differential pressure switch; 45. Second differential pressure switch; 46. Manual air regulating valve; 51. Dust collection bin; 52. Vibrator; 53. Dust removal fan; 531. Second temperature control switch. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0022] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0023] Example 1 like Figures 1-7 As shown, this integrated dust removal and disinfection device includes a housing 1 and built-in dust removal piping system 2, disinfection piping system 3, piping switching component 4, dust removal module 5, disinfection module 6, and detection and control component (control system 7). The outer side of the housing 1 is equipped with an operation screen (touchscreen), a three-color alarm light 8, a printer 9, and air inlet / outlet interfaces (flexible type, compatible with the standard duct diameter of the IVC cage; the IVC cage is existing technology, and its structure and principle will not be described in detail here). The interior of the housing 1 is divided into a dust collection chamber 11 (with built-in dust collection module) and a liquid storage chamber 12 (the liquid storage device for the built-in disinfection module 6). Details are as follows: 1) Pipeline switching component 4: Specifically includes a first electric valve 41, a second electric valve 42, a check valve 43, a first differential pressure switch 44, and a second differential pressure switch 45, etc.; the first electric valve 41 is set at the air outlet of the disinfection pipeline system 3, the second electric valve 42 is set at the air return port of the dust removal pipeline system 2, the check valve 43 is set between the disinfection fan 67 and the drying box 31 of the disinfection pipeline system 3, and the first differential pressure switch 44 and the second differential pressure switch 45 will be described in detail later.

[0024] 1) Dust removal module 5: such as Figure 3 and Figure 6 As shown, the dust collection device is a cylindrical dust collection bin 51 (e.g., volume 5L), and the internal fifth filter is a HEPA filter (e.g., filtration accuracy 0.3μm); an electromagnetic vibrator 52 (e.g., vibration frequency 50Hz) is installed at the bottom of the dust collection bin 51; the dust removal fan 53 is a centrifugal fan (e.g., air volume 150m³ / h). 3 / h), whose air inlet is connected to the dust collector fan air inlet assembly (referred to as branch) via a three-way pipe - the assembly includes a first three-way pipe 21, a fan pressure relief valve 22 (e.g., trigger negative pressure value -5kPa), a second three-way pipe 23, and a fourth filter 25 (e.g., filtration accuracy 5μm). The first end of the first three-way pipe 21 is connected to the dust collection bin 51, the second end is connected to the air outlet of the dust collector fan 53 via a third filter 24 (e.g., filtration accuracy 1μm), the third end is connected to the fan pressure relief valve 22, the other end of the fan pressure relief valve 22 is connected to the first end of the second three-way pipe 23, the second end of the second three-way pipe 23 is connected to the fourth filter 25, and the second differential pressure switch 45 is installed at the third end of the second three-way pipe 23 via an air pipe; the dust collector fan 53 has a second temperature control switch 531 (e.g., trigger threshold 100℃) attached to its outer casing.

[0025] 3) Disinfection module 6: such as Figure 4 , 5 and Figure 7 As shown, the liquid storage device is a corrosion-resistant storage bottle 61 (e.g., 2L volume, PP material), containing hydrogen peroxide solution (e.g., 30% concentration); the vaporization components include a stainless steel vaporizer 62 (e.g., 1500W heating power), a heating core (e.g., nickel-chromium alloy material), a temperature sensor 63 (e.g., detection range 0~300℃), and a first temperature control switch (not shown in the attached diagram, installation method is not limited), etc.; the disinfection fan 67 is an axial flow fan (e.g., 200m³ / h airflow). 3The air inlet of the disinfection fan 67 is connected to the return air outlet of the dust removal pipeline system 2 via a three-way interface. The remaining end of the three-way interface is connected to a catalytic decomposer 10, which is used to decompose the unadsorbed residual VHP gas (such as converting it into harmless water and oxygen). The disinfection pipeline system 3 is also equipped with a drying box 31 (such as with built-in silica gel desiccant, and the outlet of the drying box 31 is equipped with a second filter 32, which is used to intercept tiny dust or impurities in the return air, prevent them from contaminating the desiccant in the drying box 31, and ensure the dehumidification and residual removal effect), which is used for dehumidification and adsorption of residual VHP gas. The air outlet branch of the disinfection pipeline system 3 is also equipped with a first differential pressure switch 44 (such as a range of 0~5kPa, used to detect the fan's operating status). When the first differential pressure switch 44 detects a small differential pressure, it indicates that the disinfection fan 67 is abnormal. A manual air regulating valve 46 is also provided between the first differential pressure switch 44 and the second filter 32, which can manually adjust the gas flow rate. A weighing sensor 64 is installed below the storage bottle 61 to detect the weight of the solution in the storage bottle 61, thus monitoring the remaining volume. The storage bottle 61 is connected to the vaporizer 62 via a liquid pipe. The vaporizer 62 uses a peristaltic pump 65 to draw disinfectant liquid from the storage bottle 61 for vaporization. The vaporized disinfectant gas enters the vaporization chamber 66 through a pipeline. The vaporization chamber 66 is located in the air outlet branch of the disinfection pipeline system 3, and the air outlet side of the disinfection fan 67 is connected to the drying chamber 31 via a pipeline. A first temperature control switch is used to detect the temperature of the vaporizer 62 and switch the vaporizer 62 on and off. The installation method is not limited, while the temperature sensor 63 is installed at the air outlet of the disinfection pipeline system 3.

[0026] In simple terms, the disinfection fan 67, check valve 43, drying chamber 31, second filter 32, and vaporization chamber 66 are connected in sequence. The first differential pressure switch 44 is located in the pipeline between the second filter 32 and the vaporization chamber 66. The outlet of the vaporization chamber 66 is connected to the air outlet of the disinfection pipeline system 3 through a pipeline. The first filter 33 is also provided at the air outlet of the disinfection pipeline system 3 to intercept tiny impurities that may be generated during the vaporization process and avoid contaminating the inside of the IVC cage.

[0027] In this embodiment, the vaporization component is actually existing technology, and there are other structures such as air pumps that are not described. This invention only describes the parts that need to be connected to the disinfection pipeline system 3 of this invention. However, those skilled in the art should know that the vaporization component is an existing mature technology, and its principle and structure are common knowledge.

[0028] 4) Detection and control components: such as Figure 1 and Figure 2As shown, the control system 7 is a PLC controller (such as model S7-200SMART), which is electrically connected to all electric components; the alarm components are a three-color alarm light 8 (red / yellow / green) and a buzzer; in addition to the aforementioned differential pressure switches, temperature control switches, temperature sensors 63, etc., it also includes a weighing sensor 64 (such as 0.1g accuracy, to detect the remaining amount of disinfectant) installed at the bottom of the liquid storage bottle 61.

[0029] Example 2 Based on Example 1, this example provides the specific operation flow for each mode, as follows: (a) Single dust removal mode Piping Connection and Parameter Settings: Connect the return air inlet of the device to the outlet of the IVC cage via a flexible hose. Select "Single Dust Removal Mode" on the control panel, set the dust removal time (e.g., 5 minutes), and then click Start. Here, the return air inlet of the device is the return air inlet of the dust removal piping system 2, and the outlet air of the device is the outlet air of the disinfection piping system 3.

[0030] Pipeline switching and dust removal operation: The PLC controller controls the first electric valve 41 to close and the second electric valve 42 to open, and the dust removal fan 53 to start; the dust in the IVC cage enters the dust collection bin 51 through the return air port and the second electric valve 42, the fifth filter intercepts the dust, and the clean air is discharged from the housing 1 through the fan inlet assembly, the dust removal fan 53 and the third filter 24 or first discharged into the housing 1, and then discharged into the environment through the ventilation holes or gaps on the housing 1.

[0031] Self-cleaning and blockage detection: After the set dust removal time is reached, the dust removal fan 53 stops and the electromagnetic vibrator 52 starts (e.g., runs for 30 seconds) to shake off the dust accumulated on the surface of the fifth filter; if the fifth filter has too much dust accumulation causing pipe blockage, a negative pressure is formed at the air inlet of the dust removal fan 53 (e.g., below -5kPa), the spring-type pressure relief valve 22 opens, and ambient air enters the branch (the branch of the fan air inlet assembly) through the fourth filter 25. Preferably, the second differential pressure switch 45 detects the differential pressure (e.g., 2kPa) and feeds back a signal to the PLC, the three-color red light illuminates, the buzzer alarms, and the operation screen displays "Pipe blockage, please replace the filter".

[0032] (ii) Single disinfection mode Piping connection and parameter setting: Connect the air outlet and return air outlet of the device to the air inlet and air outlet of the IVC cage respectively through the flexible hose. Select "single disinfection mode" on the operation panel, set the dehumidification time (e.g., 3 min), disinfection time (e.g., 10 min), and residual removal time (e.g., 8 min) and then start.

[0033] Dehumidification (preheating) stage: The PLC controls the first electric valve 41 and the second electric valve 42 to close, the disinfection fan 67, the heating core and the vaporizer 62 to start, and the dust removal fan 53 to stop running; the airflow in the pipeline passes through the drying box 31 for dehumidification (e.g., the humidity drops to ≤30%RH), while the vaporizer 62 preheats to the set temperature (e.g., 180℃, which is adjusted by the temperature sensor 63). After the dehumidification time is over, the disinfection stage begins.

[0034] Disinfection stage: Peristaltic pump 65 starts (e.g., flow rate 10mL / min) to pump the hydrogen peroxide solution in storage bottle 61 into vaporizer 62, which vaporizes it into VHP gas; VHP gas is sent into IVC cage through the air outlet of the device to disinfect the cage pipeline and inner wall; temperature sensor 63 monitors the temperature of vaporizer 62 in real time; if the temperature exceeds 250℃, the first temperature control switch is triggered, the equipment stops and alarms.

[0035] Residual removal stage: After the disinfection time is over, the peristaltic pump 65, heating core and vaporizer 62 stop, and the disinfection fan 67 continues to run; the residual VHP gas in the IVC cage is adsorbed by silica gel desiccant through the return air port, disinfection fan 67 and drying box 31. When the residual removal time is over or the operation screen shows that the VHP concentration is ≤1ppm, the disinfection fan 67 stops and the operation is completed.

[0036] (III) Integrated Dust Removal and Disinfection Mode Preparation: Connect the hose to the air inlet and outlet of the IVC cage, select "Dust Removal and Disinfection Integrated Mode" on the control panel, set the parameters for dust removal (e.g., 5 min), dehumidification (e.g., 3 min), disinfection (e.g., 10 min), and residue removal (8 min) and then start the process.

[0037] Process linkage: First, the entire process of "single dust removal mode" (including self-cleaning) is executed. Then, the PLC automatically switches to the dehumidification, disinfection, and residue removal process of "single disinfection mode". No manual intervention is required throughout the process. This method uses the existing PLC control logic without any algorithm improvement. The abnormal alarm mechanism at each stage is consistent with the single mode. The operation screen displays the current stage, remaining time, and key parameters (such as temperature and humidity) in real time. After the operation is completed, the printer 9 automatically prints the operation record (including time and equipment status).

[0038] In summary, the above embodiments achieve integrated cleaning of IVC cages through relatively independent dust removal / disinfection pipelines, automated switching and detection mechanisms: there is no need to purchase two separate devices, and the number of operation steps is greatly reduced; the vibrator 52 significantly extends the service life of the fifth filter; the blockage detection and temperature protection mechanism avoids equipment damage, while ensuring dust removal efficiency ≥99% and disinfection effect reaches the sterile level, completely solving the problems of functional separation, secondary pollution and no blockage feedback in existing technologies.

[0039] The parts of this utility model not described in detail are existing technologies, therefore, this utility model does not describe them in detail.

[0040] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0041] Although this article uses a lot of terms such as shell 1, dust removal pipeline system 2, disinfection pipeline system 3, pipeline switching component 4, dust removal module 5, disinfection module 6, control system 7, three-color alarm light 8, printer 9, catalytic decomposer 10, dust collection chamber 11, liquid storage chamber 12, first tee pipe 21, pressure relief valve 22, second tee pipe 23, third filter 24, fourth filter 25, drying box 31, second filter 32, first filter 33, liquid storage bottle 61, vaporizer 62, temperature sensor 63, weighing sensor 64, peristaltic pump 65, vaporization chamber 66, disinfection fan 67, first electric valve 41, second electric valve 42, check valve 43, first differential pressure switch 44, second differential pressure switch 45, manual air regulating valve 46, dust collection bin 51, vibrator 52, dust removal fan 53, and second temperature control switch 531, the possibility of using other terms cannot be ruled out. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.

[0042] This utility model is not limited to the above-described preferred embodiment. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to this utility model falls within the protection scope of this utility model.

Claims

1. A dust removal and disinfection integrated device, characterized in that, include: The casing contains a dust removal pipeline system and a disinfection pipeline system; The dust removal module includes a dust collection device and a dust removal fan. The dust collection device is connected to the return air inlet of the dust removal pipeline system and the air inlet of the dust removal fan. The disinfection module includes a liquid storage device, a vaporization component, a disinfection fan, and a drying chamber. The liquid storage device is connected to the disinfection pipeline system through the vaporization component. The outlet side of the disinfection fan is connected to the disinfection pipeline system, and the inlet side of the disinfection fan is connected to the return air port of the dust removal pipeline system. A pipeline switching assembly is used to switch the return air inlet of the dust removal pipeline system and the air outlet of the disinfection pipeline system. The pipeline switching assembly includes a second differential pressure switch and a pressure relief valve. The second differential pressure switch and the pressure relief valve are installed on the branch at the air inlet end of the dust removal fan. The second differential pressure switch is electrically connected to the control system. The control system is electrically connected to the pipeline switching component, dust removal module, and disinfection module, respectively.

2. The integrated dust removal and disinfection device according to claim 1, characterized in that, The pipeline switching assembly also includes a check valve, which is located on the air outlet side of the disinfection fan, and a fourth filter is provided at the air inlet end of the branch of the dust removal fan.

3. The integrated dust removal and disinfection device according to claim 1, characterized in that, The dust collection device includes a dust collection bin, a vibrating component, and a fifth filter. The vibrating component is located at the bottom of the dust collection bin, and the fifth filter is located inside the dust collection bin. The vibrating component is electrically connected to the control system.

4. The integrated dust removal and disinfection device according to claim 1, characterized in that, The pipeline switching assembly also includes a first electric valve and a second electric valve. The second electric valve is located at the return air inlet of the dust removal pipeline system, and the first electric valve is located at the air outlet of the disinfection pipeline system.

5. The integrated dust removal and disinfection device according to claim 1, characterized in that, The vaporization assembly includes a vaporizer, a heating element, a temperature sensor, and a vaporization chamber. The liquid inlet of the vaporizer is connected to the liquid storage device. The heating element is mounted on the vaporizer and is electrically connected to the control system. The air outlet of the vaporizer is connected to the vaporization chamber, and the vaporization chamber is connected to the disinfection pipeline system. The temperature sensor is located at the air outlet of the disinfection pipeline system.

6. The integrated dust removal and disinfection device according to claim 1, characterized in that, The disinfection module also includes a drying device, which is located on the circulation path of the disinfection pipeline system and is used to dehumidify the airflow in the pipeline.

7. The integrated dust removal and disinfection device according to claim 1, characterized in that, The dust removal fan is equipped with a third filter at its outlet.

8. A dust removal and disinfection integrated device according to any one of claims 1-7, characterized in that, The liquid storage device is equipped with a liquid level detection component, which is electrically connected to the control system.

9. A dust removal and disinfection integrated device according to any one of claims 1-7, characterized in that, The disinfection pipeline system is equipped with a first differential pressure switch.

10. A dust removal and disinfection integrated device according to any one of claims 1-7, characterized in that, It also includes a connection interface for detachably connecting the air duct of the IVC cage.

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