A passageway disinfection system for a clean room

Abstract

The utility model discloses a passageway disinfection system of purification workshop, including passageway, vaporization hydrogen peroxide generator, main pipe I, side disinfection mechanism, passageway is connected purification workshop, and one end of passageway is away from purification workshop and is equipped with import, and one end of passageway is equipped with export with purification workshop intercommunication, import and export all are closed through the sealing door, vaporization hydrogen peroxide generator is installed in passageway one side, and vaporization hydrogen peroxide generator inside is equipped with hydrogen peroxide disinfectant, and main pipe I one end is connected on vaporization hydrogen peroxide generator, and the other end is connected in passageway inside, and side disinfection mechanism is installed in passageway inside respectively. The utility model can carry out all -round disinfection to the personnel of entering passageway, reduce the outside air and enter passageway, improve the cleaning efficiency in passageway, can reduce the gas in passageway when the personnel open the sealing door of export, enter purification workshop, thereby can prevent the inside pollution of purification workshop.

Description

Technical Field

[0001] This utility model belongs to the field of disinfection technology for cleanroom passages, and specifically relates to a disinfection system for cleanroom passages. Background Technology

[0002] Air shower tunnels are essential passageways for entering cleanrooms. They effectively block or reduce dust sources from entering the cleanroom and are installed between clean and non-clean rooms. However, when staff enter or exit the tunnel, the sealed door needs to be opened. At the moment the sealed door is opened, a large amount of outside air rushes in due to pressure, causing a lot of outside air to enter the tunnel and reducing the cleaning efficiency of the air shower tunnel.

[0003] A search revealed an existing technology announcement number CN221209209U describing an air shower with a bactericide spraying device. This device includes an air shower unit with cabinet doors on both sides. An air shower channel is installed inside the unit, forming a U-shaped ventilation chamber. A fan is installed at the top of one end of the ventilation chamber. Multiple air outlets connecting the air shower unit and the ventilation chamber are symmetrically installed on the air shower channel. A bactericide is installed inside the air shower channel. However, this process has the following drawbacks: when personnel enter or exit the air shower channel, the sealed door needs to be opened. Upon opening the door, a large amount of outside air rushes in due to pressure, causing a significant amount of outside air to enter the air shower channel, thus reducing its cleaning efficiency.

[0004] A search revealed a workshop air duct structure with existing technology announcement number CN222902038U, comprising a buffer channel and an air shower channel located after the buffer channel. Both the buffer channel and the air shower channel are equipped with electrically operated doors. The buffer channel contains a gas exchange device; the air shower channel contains a bottom cleaning area, a side cleaning area, and a rotating cleaning area. The rotating cleaning area is located one workstation after the side cleaning area and is fixedly equipped with two sets of air shower components and a rotating device for standing between the two sets of air shower components. However, this process has the following drawbacks: it can only treat dust on personnel, and its cleaning effect on bacteria on clothing is poor, which may affect product quality. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a disinfection system for a cleanroom passageway. This system can disinfect personnel entering the passageway in all directions. The upper and side disinfection mechanisms use atomized hydrogen peroxide to sterilize clothing. At the same time, baffle plates I and II near the inlet can block airflow, thereby reducing the amount of outside air entering the passageway and improving the cleaning efficiency within the passageway. When personnel leave the passageway, baffle plates I and II near the outlet block the gas inside the passageway, reducing the amount of gas entering the cleanroom when personnel open the sealed door at the outlet, thus preventing contamination inside the cleanroom.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A disinfection system for a cleanroom corridor includes a corridor, a vaporized hydrogen peroxide generator, a main pipe I, and side disinfection mechanisms. The corridor connects to the cleanroom, with an inlet at the end furthest from the cleanroom and an outlet at the end connecting to the cleanroom. Both the inlet and outlet are sealed by airtight doors. The vaporized hydrogen peroxide generator is installed on one side of the corridor, containing hydrogen peroxide disinfectant. One end of the main pipe I is connected to the vaporized hydrogen peroxide generator, and the other end is connected to the interior of the corridor. The side disinfection mechanisms are installed inside the corridor.

[0008] The side disinfection mechanism includes an arc-shaped plate, spray pipes, a fixed plate, a protective cover, a rotating plate, a gear ring, a gear, a motor, an annular tube, a connecting tube, and a main pipe II. The fixed plate is fixed to the bottom of the channel, and its side wall has several evenly distributed through holes. The protective cover is fixed to the top of the fixed plate with bolts. The rotating plate is movably connected inside the protective cover. There is a pair of arc-shaped plates, symmetrically connected to the inner wall of the rotating plate. Several spray pipes are installed inside the arc-shaped plates, and each spray pipe has several atomizing nozzles that pass through the arc-shaped plates and face the center of the arc-shaped plates. The annular tube is connected to the top of the spray pipes, and the connecting tube is fixed to the annular tube. The main pipe II is connected to the main pipe I. The connecting tube is connected to the main pipe II through a rotary joint. The gear ring is fixed to the outer wall of the rotating plate, the motor is fixed to the protective cover outside the gear ring, and the gear is connected to the output shaft of the motor, meshing with the gear ring.

[0009] The top of the channel is equipped with an upper disinfection mechanism; the upper disinfection mechanism includes a fan and an air outlet pipe; the air outlet pipe is fixed to the top of the channel and has several air outlets; the main pipe I is connected to the air outlet pipe, the fan is fixed to the top of the channel, and one end of the fan is connected to the air outlet pipe.

[0010] A negative pressure mechanism is connected to the side wall of the channel; the negative pressure mechanism includes a negative pressure vacuum cleaner and an exhaust pipe; the exhaust pipe is fixed to the outer side wall of the channel, and the exhaust pipe opening is connected to the inside of the channel; the negative pressure vacuum cleaner is installed on the outside of the channel and is connected to the exhaust pipe.

[0011] The inner sidewalls near both ends of the channel are provided with baffle plate I and baffle plate II. Baffle plate I is fixed at an incline on the sidewall of the channel, and baffle plate II is fixed at an incline on the sidewall of the channel opposite to baffle plate I.

[0012] The bottom of the arc-shaped plate is provided with a protrusion, and the inner side of the arc-shaped plate is provided with a limiting plate. The limiting plate is circular and fixed to the bottom wall of the channel. The limiting plate is connected to the protrusion. The limiting plate is provided with several evenly distributed clearance grooves, which correspond to the through holes.

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] 1) Vaporized hydrogen peroxide enters the annular pipe through the connecting pipe, then enters the spray pipe, and finally is atomized and sprayed out through the atomizing nozzle on the spray pipe; at the same time, the motor provides power to drive the gear to rotate, the gear to drive the gear ring to rotate, the gear ring to drive the arc plate to rotate, thereby causing the arc plate to drive the spray pipe and atomizing nozzle to rotate along the personnel to be disinfected, thereby disinfecting the personnel entering the passage in all directions; the fan delivers clean gas into the air outlet pipe, and at the same time draws the vaporized hydrogen peroxide generated by the vaporized hydrogen peroxide generator into the air outlet pipe through the main pipe I, so that the vaporized hydrogen peroxide mixes with the clean gas, and then is discharged through the air outlet, thereby further sterilizing and disinfecting the clothing;

[0015] 2) When personnel enter or exit the passage, a large amount of outside air will rush in due to pressure the moment the sealed door is opened. However, the baffles I and II near the inlet can block the air, thereby reducing the amount of outside air entering the passage and improving the cleaning efficiency inside the passage. When personnel leave the passage, the baffles I and II near the outlet can block the gas inside the passage, reducing the amount of gas inside the passage that will enter the cleanroom when personnel open the sealed door at the outlet, thus preventing contamination inside the cleanroom. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of a passage disinfection system for a cleanroom according to this utility model. Figure 1 ;

[0017] Appendix Figure 2 This is a top view schematic diagram of a passage disinfection system for a cleanroom according to the present invention;

[0018] Appendix Figure 3 This is a schematic diagram of the internal structure of a passage disinfection system for a cleanroom according to the present invention;

[0019] Appendix Figure 4 This is a schematic diagram of the side disinfection mechanism in a passage disinfection system for a cleanroom according to this utility model;

[0020] Appendix Figure 5 This is a partial structural schematic diagram of the side disinfection mechanism in a passage disinfection system for a cleanroom according to this utility model;

[0021] Appendix Figure 6 This is a schematic diagram of the arc-shaped plate and the limiting plate in a passage disinfection system for a cleanroom according to this utility model;

[0022] Appendix Figure 7 This is a schematic diagram of the upper disinfection mechanism in a passage disinfection system for a cleanroom according to this utility model;

[0023] Appendix Figure 8 This is a schematic diagram of the structure of a passage disinfection system for a cleanroom according to this utility model. Figure 2 ;

[0024] In the diagram: 1. Channel; 101. Inlet; 102. Outlet; 2. Baffle plate I; 3. Baffle plate II; 4. Upper disinfection mechanism; 401. Vaporized hydrogen peroxide generator; 402. Main pipe I; 403. Fan; 404. Air outlet pipe; 4041. Air outlet; 5. Side disinfection mechanism; 501. Arc plate; 5011. Protrusion; 502. Spray pipe; 5021. Atomizing nozzle; 503. Fixing plate; 5031. Through hole; 504. Protective cover; 505. Rotating plate; 506. Gear ring; 507. Gear; 508. Motor; 509. Ring pipe; 510. Connecting pipe; 511. Main pipe II; 512. Limiting plate; 5121. Clearance groove; 6. Negative pressure mechanism; 601. Negative pressure vacuum cleaner; 602. Exhaust duct. Detailed Implementation

[0025] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-8 The technical solution of this utility model will be further described in detail below.

[0026] A disinfection system for a cleanroom corridor includes a corridor 1, a vaporized hydrogen peroxide generator 401, a main pipe I 402, and a side disinfection mechanism 5. The corridor 1 connects to the cleanroom, with an inlet 101 at the end away from the cleanroom and an outlet 102 at the end connecting to the cleanroom. Both the inlet 101 and the outlet 102 are sealed by sealing doors. The vaporized hydrogen peroxide generator 401 is installed on one side of the corridor 1 and contains hydrogen peroxide disinfectant. The vaporized hydrogen peroxide generator 401 is model HTY-SUPER-SD2, purchased from the market or custom-made. One end of the main pipe I 402 is connected to the vaporized hydrogen peroxide generator 401, and the other end is connected to the interior of the corridor 1. A water pump is installed on the main pipe I 402. The side disinfection mechanism 5 is installed inside the corridor 1. After changing clothes in the changing room, staff enter the air shower for dust removal, then enter the corridor 1 through the inlet and proceed to the disinfection area. They are then disinfected by the side disinfection mechanism 5 and finally enter the cleanroom through the outlet 102.

[0027] The side disinfection mechanism 5 includes an arc-shaped plate 501, a spray pipe 502, a fixed plate 503, a protective cover 504, a rotating plate 505, a gear ring 506, a gear 507, a motor 508, an annular pipe 509, a connecting pipe 510, and a main pipe II 511; the fixed plate 503 is fixed to the bottom of the channel 1, and the side wall of the fixed plate 503 is provided with several evenly distributed through holes 5031; the protective cover 504 is fixed to the top of the fixed plate 503 by bolts, and the rotating plate 505 is movably connected inside the protective cover 504. A pair of plates 501 are symmetrically connected to the inner wall of the rotating plate 505. Several nozzles 502 are provided, all installed inside the arc-shaped plate 501. Several atomizing nozzles 5021 are provided on the nozzles 502, passing through the arc-shaped plate 501 and facing the center of the arc-shaped plate 501. An annular pipe 509 is connected to the top of the nozzles 502, and a connecting pipe 510 is fixed to the annular pipe 509. The main pipe II 511 is connected to the main pipe I 402. The connecting pipe 510 passes through... The rotary joint connects to the main pipe II 511; the gear ring 506 is fixed on the outer wall of the rotating plate 505, the motor 508 is fixed inside the protective cover 504 outside the gear ring 506, the motor 508 is connected to an external power supply, and the gear 507 is connected to the output shaft of the motor 508, meshing with the gear ring 506; the vaporized hydrogen peroxide generator 401 converts liquid peroxide into vaporized hydrogen peroxide, generating free hydroxyl groups, which are used to attack cellular components, including lipids, proteins, and DNA tissues, to achieve complete destruction. The process requires vaporized hydrogen peroxide to enter the annular pipe 509 through the connecting pipe 510, then enter the spray pipe 502, and finally be sprayed out through the atomizing nozzle 5021 on the spray pipe 502. At the same time, the motor 508 provides power to drive the gear 507 to rotate, the gear 507 drives the gear ring 506 to rotate, and the gear ring 506 drives the arc plate 501 to rotate, thereby causing the arc plate 501 to drive the spray pipe 502 and the atomizing nozzle 5021 to rotate along the personnel to be disinfected, thereby disinfecting the personnel entering the channel 1 in all directions.

[0028] The top of the passage 1 is equipped with an upper disinfection mechanism 4; the upper disinfection mechanism 4 includes a fan 403 and an air outlet 404; the air outlet 404 is fixed to the top of the passage 1, and has several air outlets 4041 on it, with a main pipe I 402 connected to the air outlet 404; the fan 403 is fixed to the top of the passage 1, with one end of the fan 403 connected to the air outlet 404; the fan 403 delivers clean gas into the air outlet 404, and at the same time draws the vaporized hydrogen peroxide generated by the vaporized hydrogen peroxide generator 401 into the air outlet 404 through the main pipe I 402, so that the vaporized hydrogen peroxide mixes with the clean gas, and then is discharged through the air outlets 4041, thereby further sterilizing the clothing of the personnel entering the passage.

[0029] A negative pressure mechanism is connected to the side wall of the channel; the negative pressure mechanism 6 includes a negative pressure vacuum cleaner 601 and an exhaust pipe 602; the exhaust pipe 602 is fixed to the outer wall of the channel 1, and the outlet of the exhaust pipe 602 is connected to the inside of the channel 1; the negative pressure vacuum cleaner 601 is installed on the outside of the channel 1 and is connected to the exhaust pipe 602; after disinfection, the negative pressure vacuum cleaner 601 provides power to extract excess air, dust, and vaporized hydrogen peroxide from the inside of the channel 1.

[0030] The inner walls of the passage 1 near both ends are equipped with baffle plates I2 and II3. Baffle plate I2 is fixed at an incline to the side wall of passage 1, and baffle plate II3 is fixed at an incline to the side wall of passage 1 opposite to baffle plate I2. When personnel enter or exit the passage, a large amount of external air will rush in due to pressure when the sealed door is opened. Baffle plates I2 and II3 near the inlet can block the air, thereby reducing the amount of external air entering the passage and improving the cleaning efficiency of passage 1. When personnel leave passage 1, baffle plates I2 and II3 near the outlet can block the gas inside passage 1, reducing the amount of gas inside passage 1 entering the cleanroom when personnel open the sealed door at the outlet, thereby preventing contamination inside the cleanroom.

[0031] The bottom of the arc-shaped plate 501 is provided with a protrusion 5011, and the inner side of the arc-shaped plate 501 is provided with a limiting plate 512. The limiting plate 512 is circular and fixed to the bottom wall of the channel 1. The limiting plate 512 is connected to the protrusion 5011. The limiting plate 512 is provided with a plurality of evenly distributed clearance grooves 5121, which correspond to the through holes 5031. The limiting plate 512 can form a ring track with the fixed plate 503, which facilitates the rotation of the arc-shaped plate 501 and prevents the arc-shaped plate 501 from deviating during the rotation process and thus getting stuck.

[0032] A disinfection system for a cleanroom passage has the following working process: First, after changing clothes in the changing room, staff enter the air shower for dust removal, then enter the passage 1 through the inlet and enter the disinfection area, then undergo disinfection through the side disinfection mechanism 5, and finally enter the cleanroom through the outlet 102.

[0033] Upon entering the disinfection area, vaporized hydrogen peroxide enters the annular pipe 509 through the connecting pipe 510, then enters the spray pipe 502, and finally is atomized and sprayed out through the atomizing nozzle 5021 on the spray pipe 502. At the same time, the motor 508 provides power to drive the gear 507 to rotate, the gear 507 drives the gear ring 506 to rotate, and the gear ring 506 drives the arc plate 501 to rotate, thereby causing the arc plate 501 to drive the spray pipe 502 and the atomizing nozzle 5021 to rotate along the personnel to be disinfected, thus disinfecting the personnel entering the passage 1 in all directions. At the same time, the fan 403 delivers clean gas into the air outlet 404, and at the same time, the vaporized hydrogen peroxide generated by the vaporized hydrogen peroxide generator 401 is drawn into the air outlet 404 through the main pipe I 402, so that the vaporized hydrogen peroxide mixes with the clean gas, and then is discharged through the air outlet 4041, thereby further sterilizing the clothing of the personnel entering, and then entering the clean room through the outlet 102.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and 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, and therefore should not be construed as a limitation of this utility model.

[0035] In summary, the electronic or electrical components, including but not limited to vaporized hydrogen peroxide generators, negative pressure vacuum cleaners, fans, and motors, are existing components that are custom-made or purchased. The power of each component is provided by an external power source, and the electrical connections between the components are conventional circuit or electrical connections in the existing technology.

[0036] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A disinfection system for a cleanroom passageway, comprising a passageway, a vaporized hydrogen peroxide generator, a main pipe I, and a side disinfection mechanism; the passageway connects to the cleanroom, with an inlet at the end of the passageway furthest from the cleanroom and an outlet at the end of the passageway connected to the cleanroom; both the inlet and outlet are sealed by airtight doors; characterized in that... A vaporized hydrogen peroxide generator is installed on one side of the channel. The vaporized hydrogen peroxide generator contains hydrogen peroxide disinfectant. One end of the main pipe I is connected to the vaporized hydrogen peroxide generator, and the other end is connected to the inside of the channel. Side disinfection mechanisms are installed inside the channel. The top of the passageway is equipped with an upper disinfection mechanism; The upper disinfection mechanism includes a fan and an air outlet duct; the air outlet duct is fixed at the top of the passage and has several air outlets; the main pipe I is connected to the air outlet duct, the fan is fixed at the top of the passage, and one end of the fan is connected to the air outlet duct. The side disinfection mechanism includes an arc-shaped plate, spray pipes, a fixed plate, a protective cover, a rotating plate, a gear ring, a gear, a motor, an annular tube, a connecting tube, and main pipe II. The fixed plate is fixed to the bottom of the channel, and its side wall has several evenly distributed through holes. The protective cover is fixed to the top of the fixed plate with bolts. The rotating plate is movably connected inside the protective cover. There is a pair of arc-shaped plates, symmetrically connected to the inner wall of the rotating plate. Several spray pipes are installed inside the arc-shaped plates, and each spray pipe has several atomizing nozzles that pass through the arc-shaped plates and face the center of the arc-shaped plates. The annular tube is connected to the top of the spray pipes, and the connecting tube is fixed to the annular tube. Main pipe II is connected to main pipe I. The connecting tube is connected to main pipe II through a rotary joint. The gear ring is fixed to the outer wall of the rotating plate, the motor is fixed to the protective cover outside the gear ring, and the gear is connected to the output shaft of the motor, meshing with the gear ring.

2. The passage disinfection system for a cleanroom according to claim 1, characterized in that... A negative pressure mechanism is connected to the side wall of the passage; the negative pressure mechanism includes a negative pressure vacuum cleaner and an exhaust pipe; the exhaust pipe is fixed to the outer wall of the passage, and the exhaust pipe opening is connected to the inside of the passage; the negative pressure vacuum cleaner is installed on the outside of the passage and is connected to the exhaust pipe.

3. The passage disinfection system for a cleanroom according to claim 1, characterized in that... Baffle plate I and baffle plate II are provided on the inner sidewalls near both ends of the channel. Baffle plate I is fixed at an incline on the sidewall of the channel, and baffle plate II is fixed at an incline on the sidewall of the channel opposite to baffle plate I.

4. The passage disinfection system for a cleanroom according to claim 1, characterized in that... The bottom of the arc-shaped plate is provided with a protrusion, and the inner side of the arc-shaped plate is provided with a limiting plate. The limiting plate is circular and fixed to the bottom wall of the channel. The limiting plate is connected to the protrusion. The limiting plate is provided with several evenly distributed clearance grooves, which correspond to the through holes.

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