Heating ventilation air conditioner self-cleaning device for icu department

Abstract

The invention relates to the technical field of air conditioner self-cleaning devices, in particular to an icu department heating ventilation air conditioner self-cleaning device which comprises an air conveying channel, an air conditioner indoor unit is fixedly installed on one side of the air conveying channel, and a first filter element is installed on the side, close to the air conditioner indoor unit, of the inner side of the air conveying channel; when an air conveying channel conveys air, flowing air enables fan blades to rotate, the outer wall of the right end of a second filter element can be brushed through a cleaning sponge strip when the fan blades rotate, and a driving part can drive a cleaning sponge block to brush the second filter element and a first filter element; according to the mode, the device can automatically clean the filtering end faces of the two groups of filter elements, so that workers do not need to manually take down the filter elements to clean the filter elements, the labor amount of the workers can be effectively reduced, and the device is simple and convenient to operate and high in practicability. The popularization and use are convenient.

Description

Technical Field

[0001] This invention relates to the field of air conditioning self-cleaning device technology, specifically a self-cleaning device for HVAC systems in ICU wards. Background Technology

[0002] As a crucial piece of equipment integrating heating, ventilation, and air conditioning, HVAC systems play a vital role in modern medical environments. In the ICU, its operating principle is as follows: when outside air passes through the air supply duct, it undergoes dust filtration through two sets of filters in sequence—the filter closer to the outdoor unit intercepts large particles, while the filter closer to the indoor unit, with a smaller mesh diameter, further traps fine particles. After this dust pretreatment, the air enters the indoor unit for temperature and humidity regulation, thereby providing patients with a clean and comfortable air environment.

[0003] However, existing HVAC systems have significant technical shortcomings. With increased usage time, a large amount of dust and contaminants accumulate on the outer surface of the filter element. If not cleaned promptly, this not only severely reduces filtration efficiency and affects air purification quality, but may also lead to increased energy consumption due to increased resistance. However, most HVAC systems on the market currently lack automatic cleaning functions, relying entirely on manual disassembly and cleaning of the filter element. This traditional maintenance method is not only cumbersome and time-consuming, but frequent disassembly can also damage the equipment and increase maintenance risks. This is especially problematic in ICU departments with extremely high air quality requirements and demanding work schedules, where traditional manual cleaning methods cannot meet the needs of efficient and stable operation.

[0004] Therefore, it is imperative to invent a self-cleaning HVAC system for ICU departments, considering their unique usage scenarios. This innovative design enables automatic cleaning of the filter element, ensuring effective air filtration while reducing manual maintenance, improving equipment reliability and intelligence, and providing a continuous and stable high-quality air environment for ICU departments. This is of great significance for improving the medical environment and enhancing the quality of medical services. Summary of the Invention

[0005] The purpose of this invention is to provide a self-cleaning device for HVAC in ICU departments to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-cleaning device for HVAC in an ICU, comprising: an air supply channel, an indoor air conditioning unit fixedly installed on one side of the air supply channel, a filter element one installed on the inner side of the air supply channel near the indoor air conditioning unit, a filter element two installed on the side away from the indoor air conditioning unit, a fan blade rotatably connected to one side of the filter element two, a cleaning sponge strip fixedly installed on one end sidewall of the fan blade, and one side of the cleaning sponge strip contacting the outer end sidewall of the filter element two;

[0007] A cleaning component is provided between filter element one and filter element two. The cleaning component includes a connecting plate. Fixed plates are symmetrically and elastically connected to the left and right ends of the connecting plate. Cleaning sponge blocks are fixedly installed on the outer ends of the fixed plates. The two cleaning sponge blocks are respectively attached to the outer walls of filter element one and filter element two.

[0008] A drive component is installed at the upper end of the air supply duct to drive the cleaning component to move, and a dust suction component is installed at the upper end of the air supply duct to remove the dust cleaned by the cleaning component.

[0009] Preferably, an inspection door is fixedly installed at one end of the air supply channel by bolts, and two limiting sleeves are symmetrically fixedly installed at the inner end of the inspection door. Two guide rods are symmetrically fixedly installed at the inner end of the air supply channel. When the inspection door is fixed on the outer wall of the air supply channel, the limiting sleeves are sleeved on the outer side of one of the guide rods.

[0010] Preferably, the guide rod slides through the side wall of the connecting plate, and two filter element holders are symmetrically fixedly installed at the inner end of the air supply channel, with filter element one and filter element two respectively inserted into the two filter element holders.

[0011] Preferably, mounting plates are symmetrically fixedly installed at the left and right ends of the connecting plate, with the fixing plates located outside the mounting plates. Telescopic rods are installed between the top and bottom of the mounting plates and the fixing plates, and springs are sleeved on the outside of the telescopic rods.

[0012] Preferably, one end of the telescopic rod and the spring is fixed to the outer end of the mounting plate, and the other end is fixed to the outer end of the fixing plate. When the spring is in a balanced state, the cleaning sponge block adheres to the outer wall of filter element one and filter element two.

[0013] Preferably, the driving component includes a strip-shaped hole at the upper end of the air supply channel and a housing fixed to the outer end of the strip-shaped hole. A rubber strip is fixedly installed inside the strip-shaped hole, and a threaded rod is rotatably connected inside the housing. A servo motor is fixedly installed at one end of the housing, and the output shaft of the servo motor is fixedly connected to one end of the threaded rod.

[0014] Preferably, the outer end of the threaded rod is threaded with a threaded sleeve, and the lower end of the threaded sleeve is fixedly installed with a movable rod. The lower end of the movable rod passes through the strip hole and the rubber strip and is fixedly connected to the upper center of the connecting plate.

[0015] Preferably, the dust collection component includes a dust collection box fixed to the upper end of the air supply channel. A vacuum cleaner is fixedly installed at one end of the dust collection box, and a dust removal door is fixedly and sealed at the other end by screws. A hose and a second suction pipe are fixedly installed at the left and right ends of the dust collection box, respectively. The other ends of the hose and the second suction pipe pass through the side wall of the air supply channel, and the second suction pipe is located on one side of the fan blade.

[0016] Preferably, the other end of the hose is fixedly connected to a connecting pipe and communicates with the connecting pipe. Air ducts are symmetrically fixedly installed at both ends of the connecting pipe. The air ducts are fixed to one side of the fixing plate. Several suction pipes are evenly fixedly installed on the outer wall of the air ducts. The suction pipes are located on one side of the cleaning sponge block.

[0017] Preferably, the suction pipe is connected to the air duct, and the air duct is connected to the connecting pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] When air is delivered through the air supply channel, the flowing air causes the fan blades to rotate. As the fan blades rotate, the right outer wall of the second filter element is cleaned by the cleaning sponge strip. The driving component drives the cleaning sponge block to clean both the second and first filter elements. During the cleaning process, the dust suction component picks up the dust that has been cleaned. As can be seen from the above, this invention can automatically clean the filter end faces of the two sets of filter elements, thereby avoiding the need for workers to manually remove and clean them. This effectively reduces the workload of workers, and the device is simple and convenient to operate, making it easy to promote and use. Attached Figure Description

[0020] Figure 1 This is a front view of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the rear side of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the air conveying channel of the present invention;

[0023] Figure 4 This is a schematic diagram of the outer end structure of the air supply channel of the present invention;

[0024] Figure 5 This is a schematic diagram showing the connection between the cleaning component, filter element one, and filter element two of the present invention;

[0025] Figure 6 This is a schematic diagram of the cleaning component structure of the present invention.

[0026] In the diagram: 1. Air duct; 2. Indoor unit of air conditioner; 3. Inspection door; 4. Filter element holder; 5. Filter element one; 6. Filter element two; 7. Guide rod; 8. Limiting sleeve; 9. Strip hole; 10. Rubber strip; 11. Housing; 12. Threaded rod; 13. Servo motor; 14. Threaded sleeve; 15. Moving rod; 16. Connecting plate; 17. Mounting plate; 18. Fixing plate; 19. Cleaning sponge block; 20. Telescopic rod; 21. Spring; 22. Air duct; 23. Suction hose one; 24. Connecting pipe; 25. Flexible hose; 26. Dust collection box; 27. Vacuum cleaner; 28. Suction hose two; 29. ​​Dust removal door; 30. Bracket; 31. Fan blade; 32. Cleaning sponge strip. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0028] Please see Figures 1 to 6 This invention provides a technical solution: a self-cleaning device for HVAC in an ICU, comprising: an air supply duct 1, an indoor air conditioning unit 2 fixedly installed on one side of the air supply duct 1, a filter element 5 installed on the inner side of the air supply duct 1 near the indoor air conditioning unit 2, and a filter element 6 installed on the side away from the indoor air conditioning unit 2. The filter element 6 is for primary air filtration, while the filter element 5 is for secondary air filtration. Because the filter pore diameter of the filter element 6 is larger, dust will also accumulate on the outer wall of the side of the filter element 6 near the filter element 5. The inner end of the air supply duct 1 is symmetrical. Two filter element holders 4 are fixedly installed. Filter element 1 5 and filter element 2 6 are respectively inserted into the two filter element holders 4, which facilitates the replacement and installation of filter element 1 5 and filter element 2 6. One end of the air supply channel 1 is fixedly installed with an inspection door 3 by bolts. Two limit sleeves 8 are symmetrically fixedly installed on the inner end of the inspection door 3. Two guide rods 7 are symmetrically fixedly installed on the inner end of the air supply channel 1. When the inspection door 3 is fixed on the outer wall of the air supply channel 1, the limit sleeve 8 is sleeved on one outer side of the guide rod 7, which stably fixes the guide rod 7. At the same time, the inspection door 3 facilitates the inspection and maintenance of the inside of the air supply channel 1.

[0029] A fan blade 31 is rotatably connected to one side of filter element 6. A bracket 30 is fixedly installed on the inner side of the air supply channel 1. The shaft of the fan blade 31 is rotatably connected to the bracket 30 through a bearing. A cleaning sponge strip 32 is fixedly installed on one side wall of the fan blade 31. One side of the cleaning sponge strip 32 contacts the outer side wall of filter element 6. When the fan blade 31 rotates, it will rotate synchronously with the cleaning sponge strip 32 to clean the outer wall of filter element 6. When the air supply channel 1 supplies air, the supplied air will cause the rotating fan blade 31 to rotate due to the flow. During the rotation of the fan blade 31, the cleaning sponge strip 32 can clean the outer end of filter element 6, thereby preventing dust from sticking to the outer wall of filter element 6.

[0030] A cleaning component is provided between filter element 5 and filter element 6. The cleaning component includes a connecting plate 16. A guide rod 7 slides through the side wall of the connecting plate 16. When the connecting plate 16 moves, it slides at the outer end of the guide rod 7 to guide and limit the movement of the connecting plate 16. Fixing plates 18 are symmetrically and elastically connected to the left and right ends of the connecting plate 16. Cleaning sponge blocks 19 are fixedly installed on the outer ends of the fixing plates 18. The two cleaning sponge blocks 19 are respectively attached to the outer walls of filter element 5 and filter element 6. Mounting plates 17 are symmetrically and fixedly installed on the left and right ends of the connecting plate 16. 8 is located on the outside of the mounting plate 17. Telescopic rods 20 are installed between the top and bottom of the mounting plate 17 and the fixing plate 18. A spring 21 is sleeved on the outside of the telescopic rod 20. One end of the telescopic rod 20 and the spring 21 are fixed to the outer end of the mounting plate 17, and the other end is fixed to the outer end of the fixing plate 18. When the spring 21 is in a balanced state, the cleaning sponge block 19 adheres to the outer wall of filter element 5 and filter element 6. Under the action of the spring 21, the cleaning sponge block 19 is always adhered to the outer wall of filter element 5 and filter element 6, which increases the cleaning effect.

[0031] A driving component is provided at the upper end of the air supply duct 1 to drive the cleaning component to move. The driving component includes a strip-shaped hole 9 opened at the upper end of the air supply duct 1 and a housing 11 fixed to the outer end of the strip-shaped hole 9. The lower end of the housing 11 is fixed to the upper end of the air supply duct 1 and covers the strip-shaped hole 9. Two rubber strips 10 are fixedly installed inside the strip-shaped hole 9. A threaded rod 12 is rotatably connected inside the housing 11. A servo motor 13 is fixedly installed at one end of the housing 11. The output shaft of the servo motor 13 is fixedly connected to one end of the threaded rod 12. The servo motor 13 can drive the threaded rod 12. The rod 12 rotates in both directions. The outer end of the threaded rod 12 is threadedly fitted with a threaded sleeve 14. The lower end of the threaded sleeve 14 is fixedly installed with a moving rod 15. The lower end of the moving rod 15 passes through the strip hole 9 and the rubber strip 10 and is fixedly connected to the upper center of the connecting plate 16. When the servo motor 13 starts, it drives the threaded rod 12 to rotate. The threaded rod 12 drives the threaded sleeve 14 to move the moving rod 15 and the connecting plate 16, thereby driving the cleaning sponge block 19 to move back and forth on the outer walls of filter element 1 5 and filter element 2 6, automatically cleaning the dust on the outer walls of filter element 1 5 and filter element 2 6.

[0032] A dust collection component is installed at the upper end of the air supply duct 1 to remove dust cleaned by the cleaning component. The dust collection component includes a dust collection box 26 fixed to the upper end of the air supply duct 1. A vacuum cleaner 27 is fixedly installed at one end of the dust collection box 26. The inner end of the vacuum cleaner 27 is connected to the inner end of the dust collection box 26 and is equipped with a filter screen. The vacuum cleaner 27 is used to apply negative pressure inside the dust collection box 26. A dust removal door 29 is fixedly and sealed at the other end of the dust collection box 26 with screws. Opening the dust removal door 29 allows the dust inside the dust collection box 26 to be removed. A flexible hose 25 and a second suction pipe 28 are fixedly installed at the left and right ends of the dust collection box 26, respectively, and are connected to each other. The other ends of the flexible hose 25 and the second suction pipe 28 both pass through the side wall of the air supply duct 1. The second suction pipe 28 is located on one side of the fan blade 31. The other end of the hose 25 is fixedly connected to the connecting pipe 24 and communicates with the connecting pipe 24. The left and right ends of the connecting pipe 24 are symmetrically fixedly installed with air pipes 22. The air pipes 22 are fixed on one side of the fixing plate 18. Several suction pipes 23 are evenly fixedly installed on the outer wall of the air pipes 22. The suction pipes 23 are located on one side of the cleaning sponge block 19. The suction pipes 23 are connected to the air pipes 22, and the air pipes 22 are connected to the connecting pipe 24. When the vacuum cleaner 27 is started, the dust that has been cleaned can be sucked into the dust collection box 26 through the suction pipes 23 and 28. When the drive component drives the cleaning component to clean the filter element 5 and the filter element 6, the suction component can be turned on to suck the dust that has been cleaned into the dust collection box 26.

[0033] When this device is in operation, if the HVAC system is in use, the outdoor unit will deliver air into the air duct 1. Filter element 2 (6) and filter element 1 (5) will filter the air, preventing it from passing through. During the air delivery process in the air duct 1, the airflow causes the fan blades 31 to rotate. As the fan blades 31 rotate, the cleaning sponge strips 32 clean the outer side plate of filter element 2 (6), preventing dust from adhering to the outer wall of filter element 2 (6) and thus avoiding any impact on its filtration efficiency. When filter element 2 (6)... When cleaning the opposite ends of filter element 6 and filter element 5 after prolonged use, the worker can start the vacuum cleaner 27 and the servo motor 13. The servo motor 13 drives the cleaning sponge block 19 to move back and forth between filter element 5 and filter element 6, and clean the outer wall of the left end of filter element 6 and the outer wall of the right end of filter element 5. At the same time, the vacuum cleaner 27 can suck up the dust cleaned by the vacuum pipe 23 and the dust pipe 28 can suck up the dust on the right end of filter element 6 in the air supply channel 1, and then transport the dust to the dust storage box 500 for storage.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An icu department heating ventilation air conditioner self-cleaning device, comprising: The air inlet channel (1) is fixedly installed with an air conditioner indoor unit (2) on one side, characterized in that: a filter core I (5) is installed on the inner side of the air inlet channel (1) close to the air conditioner indoor unit (2), a filter core II (6) is installed on the inner side of the air inlet channel (1) away from the air conditioner indoor unit (2), a fan blade (31) is rotatably connected to one side of the filter core II (6), a cleaning sponge strip (32) is fixedly installed on one end side wall of the fan blade (31), and one side of the cleaning sponge strip (32) is in contact with the outer end side wall of the filter core II (6). The cleaning component is arranged between the filter core I (5) and the filter core II (6) and includes a connecting plate (16), the left and right ends of the connecting plate (16) are symmetrically and elastically connected with fixed plates (18), the outer ends of the fixed plates (18) are fixedly installed with cleaning sponge blocks (19), and the two cleaning sponge blocks (19) are respectively attached to the outer walls of the filter core I (5) and the filter core II (6). The upper end of the air inlet channel (1) is provided with a driving component for driving the cleaning component to move, and the upper end of the air inlet channel (1) is provided with a dust suction component for sucking away dust cleaned by the cleaning component.

2. The icu department heating ventilation air conditioner self-cleaning device according to claim 1, characterized in that: One end of the air inlet channel (1) is fixedly installed with an access door (3) through bolts, two limiting sleeves (8) are symmetrically and fixedly installed on the inner end of the access door (3), two guide rods (7) are symmetrically and fixedly installed on the inner end of the air inlet channel (1), and when the access door (3) is fixed to the outer wall of the air inlet channel (1), the limiting sleeves (8) are sleeved on the outer side of the guide rods (7).

3. The icu department heating ventilation air conditioner self-cleaning device according to claim 1, characterized in that: The guide rods (7) slide through the side wall of the connecting plate (16), and two filter core fixing frames (4) are symmetrically and fixedly installed on the inner end of the air inlet channel (1), and the filter core I (5) and the filter core II (6) are respectively inserted into the two filter core fixing frames (4).

4. The icu department heating ventilation air conditioner self-cleaning device according to claim 1, characterized in that: The left and right ends of the connecting plate (16) are symmetrically and fixedly installed with mounting plates (17), the fixed plates (18) are located on the outer side of the mounting plates (17), the upper and lower portions of the mounting plates (17) and the fixed plates (18) are both installed with telescopic rods (20), and the outer side of the telescopic rods (20) is sleeved with springs (21).

5. The icu department heating ventilation air conditioner self-cleaning device according to claim 1, characterized in that: One end of the telescopic rod (20) and the spring (21) is fixed to the outer end of the mounting plate (17), and the other end is fixed to the outer end of the fixed plate (18), and when the spring (21) is in a balanced state, the cleaning sponge blocks (19) are attached to the outer walls of the filter core I (5) and the filter core II (6).

6. The icu department heating ventilation air conditioner self-cleaning device according to claim 1, characterized in that: The driving component includes a strip-shaped hole (9) formed in the upper end of the air inlet channel (1) and a shell (11) fixed to the outer end of the strip-shaped hole (9), a rubber strip (10) is fixedly installed in the strip-shaped hole (9), a threaded rod (12) is rotatably connected in the shell (11), a servo motor (13) is fixedly installed at one end of the shell (11), and the output shaft of the servo motor (13) is fixedly connected with one end of the threaded rod (12).

7. The icu department HVAC self-cleaning device according to claim 4, characterized in that: The outer end of the threaded rod (12) is threadedly sleeved with a threaded sleeve (14), the lower end of the threaded sleeve (14) is fixedly installed with a moving rod (15), and the lower end of the moving rod (15) is fixedly connected with the center of the upper end of the connecting plate (16) after penetrating through the strip-shaped hole (9) and the rubber strip (10).

8. The icu department heating ventilation air conditioner self-cleaning device according to claim 1, characterized in that: The dust suction component comprises a dust storage box (26) fixed at the upper end of the air conveying channel (1), one end of the dust storage box (26) is fixedly provided with a dust collector (27), the other end is fixedly and sealingly provided with a dust removal door (29) through a screw, and the left and right ends of the dust storage box (26) are respectively fixedly provided with a hose (25) and a dust suction pipe (28); the other ends of the hose (25) and the dust suction pipe (28) pass through the side wall of the air conveying channel (1), and the dust suction pipe (28) is located at one side of the fan blade (31).

9. The icu department heating ventilation air conditioner self-cleaning device according to claim 1, characterized in that: The other end of the hose (25) is fixedly connected with a connecting pipe (24) and communicates with the connecting pipe (24); the left and right ends of the connecting pipe (24) are symmetrically fixedly provided with air pipes (22); the air pipes (22) are fixed at one side of the fixed plate (18); a plurality of dust suction pipes (23) are uniformly fixed on the outer wall of the air pipe (22) and located at one side of the cleaning sponge block (19).

10. The icu department heating ventilation air conditioner self-cleaning device according to claim 9, characterized in that: The dust suction pipe (23) communicates with the air pipe (22), and the air pipe (22) communicates with the connecting pipe (24).

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