An entry and exit purification air shower room for ultra-clean laboratories and an air shower method thereof

Abstract

The invention discloses an entry and exit purification air shower room for an ultra-clean laboratory and an air shower method thereof, and belongs to the field of laboratories. The invention discloses an entry and exit purification air shower room for an ultra-clean laboratory, comprising a house body, a preparation room is arranged at the entrance of the house body, the preparation room extends into the interior of the house body and is provided with a disinfection connecting platform, a skeleton area is arranged at one end of the disinfection connecting platform, a clean passage connected with the preparation room is opened in the middle of the interior of the house body, a partition mechanism is arranged on the lower wall of the clean passage, a sediment area is arranged on the side of the clean passage away from the skeleton area, door frames are installed at the entrances and exits of the preparation room, the skeleton area and the sediment area, and a sealing door is installed in the door frame, which can reduce the spread of microorganisms carried by staff members walking to multiple test areas, and at the same time, the staff members are subjected to secondary air shower treatment when entering and leaving the test area, so as to reduce the probability of cross contamination.

Description

Technical Field

[0001] The invention relates to the field of laboratories, and more particularly to an inlet and outlet purification air shower room of an ultra-clean laboratory and an air shower method thereof. Background Art

[0002] Archaeologists usually need to excavate, collect and transfer cultural relics, and subsequent research needs to be carried out in a dust-free laboratory. Since cultural relics include relics or remains, and the flesh and blood in some remains are eroded and oxidized by the soil, some research and DNA molecules in the remains need to be carried out in the laboratory to minimize the damage caused by natural microorganisms and bacteria.

[0003] Through patent search, it was found that the Chinese patent with publication number CN212538177U disclosed a mechanical ventilation PCR laboratory, including an entry area, a PCR dedicated corridor, a reagent preparation area, a gene amplification area, a sample preparation area, a reagent preparation area mechanical exhaust device, a reagent preparation area mechanical air supply device, a sample preparation area including a sample preparation area mechanical exhaust device, a sample preparation area mechanical air supply device, a gene amplification area including a gene amplification area mechanical exhaust device, a gene amplification area mechanical air supply device, a product analysis area including a product analysis area mechanical exhaust device, a product analysis area mechanical air supply device, although the reagent preparation area mechanical exhaust device, the sample preparation area mechanical exhaust device, the gene amplification area mechanical exhaust device, and the product analysis area mechanical exhaust device are independent of each other, realizing relatively independent ventilation between the areas, without cross contamination, and having extremely high safety performance;

[0004] However, the research information in multiple experimental areas in the laboratory needs to be integrated with each other, which requires the staff to carry materials and walk back and forth in multiple experimental areas. Microorganisms and bacteria will be attached to the staff in a single experimental area. If they enter other experimental areas, there is a high probability of cross-contamination. In addition, when the staff walk from one experimental area to another, they cannot be air-showered again, and it is difficult to remove the microorganisms attached to their bodies, which reduces the cleanliness of each experimental area. Therefore, we propose an entry and exit purification air shower room for ultra-clean laboratories and an air shower method thereof. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide an entry and exit purification air shower room for an ultra-clean laboratory and an air shower method thereof, which can reduce the spread of microorganisms carried by staff walking to multiple test areas, and at the same time perform secondary air shower treatment on staff when entering and leaving the test area to reduce the probability of cross contamination.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A clean air shower room for entering and exiting an ultra-clean laboratory comprises a house, a preparation room is arranged at the entrance of the house, the preparation room extends into the interior of the house and is provided with a disinfection connecting platform, a skeleton area is arranged at one end of the disinfection connecting platform, a clean passage connected to the preparation room is opened in the middle of the interior of the house, a partition mechanism is arranged on the lower wall of the clean passage, a sediment area is arranged on the side of the clean passage away from the skeleton area, door frames are installed at the entrances and exits of the preparation room, the skeleton area and the sediment area, a sealed door is installed in the door frame, a secondary air shower mechanism is arranged on the sealed door, and a turntable is arranged on the floor of the house at the lower side of the door frame.

[0010] Furthermore, the bone area includes a bone processing room arranged at one end of the disinfection platform, a bone DNA processing room is arranged at one end of the bone processing room away from the preparation room, and a bone DNA library building room is arranged at one end of the bone DNA processing room away from the bone processing room.

[0011] Furthermore, the sediment area includes a sediment ancient DNA extraction chamber arranged on one side of the clean channel, and a sediment ancient DNA library construction chamber is arranged on one side of the sediment ancient DNA extraction chamber.

[0012] Furthermore, an ancient protein chamber is provided on the side of the sediment ancient DNA extraction chamber away from the sediment ancient DNA library construction chamber, a reagent mixing chamber is provided on the side of the ancient protein chamber away from the sediment ancient DNA extraction chamber, a storage room is provided at the outlet of the housing, a high-voltage well is provided on the outside of the housing, and a material transfer channel is opened between one side of the reagent mixing room and one side of the storage room.

[0013] Furthermore, a partition wall is provided in the middle of the clean passage, a gap is left between the end of the partition wall away from the preparation room and the inner wall of the house, exhaust pipes are provided on both sides of the partition wall, a plurality of air inlet pipes are provided on the exhaust pipe, a plurality of distance sensors are provided on the outer side of the exhaust pipe, a first fan is installed on the outer wall of the house, and one end of the exhaust pipe passes through the house and is connected to the first fan.

[0014] Furthermore, the bone DNA processing room, bone DNA library building room, sediment ancient DNA extraction room and sediment ancient DNA library building room are all equipped with refrigerators, and a material transfer channel is opened between one side of the reagent mixing room and one side of the storage room.

[0015] Furthermore, the secondary air shower mechanism includes a plurality of air inlet nozzles, each of which is fixedly mounted on the sealed door, and the tail ends of the plurality of air inlet nozzles are fixedly connected to the same air guide pipe, the other end of the air guide pipe passes through the door frame and is connected to the exhaust pipe, and the side wall of the door frame away from the air guide pipe is fixedly mounted with a plurality of air outlet nozzles, the other end of the air outlet nozzle is fixedly connected to the same exhaust pipe, a second fan is mounted on the outer wall of the roof, the other end of the exhaust pipe passes through the roof and is connected to the second fan, and the second fan (32) is mounted outside the clean passage (5).

[0016] Furthermore, the turntable includes a circular groove, which is opened on the floor of the house and located on the lower side of the door frame. The floor of the circular groove is provided with a groove, and a motor is fixedly installed on the floor of the groove. A first gear is fixedly connected to the output shaft of the motor, a second gear is meshed with the left side of the first gear, a transmission shaft is fixedly connected to the top surface of the second gear, a circular plate is fixedly connected to the top of the transmission shaft, an annular plate is fixedly connected to the bottom surface of the circular plate, an annular groove is opened on the bottom surface of the circular groove, the annular plate is movably connected to the annular groove, and a photoelectric sensor is installed on the top surface of the circular plate.

[0017] An air shower method for entering and exiting a clean air shower room of an ultra-clean laboratory comprises the following steps:

[0018] S1: Before entering the clean room, take off your shoes at the shoe cabinet in front of the preparation room, put on shoelace covers, and then enter the preparation room. After entering the preparation room, wear disinfected special slippers, protective clothing, hair nets, surgical masks, sleeves and two layers of medical gloves. Check your clothes in front of the mirror. After confirming that there is no exposure and the protective clothing is not damaged, you can enter the air shower room;

[0019] S2: After entering the air shower room, please rotate your body according to the instructions to perform air shower. You can enter the experimental operation area only after hearing the prompt tone after the air shower.

[0020] S3: The distance sensor monitors the distance of the sealed door in real time to obtain the opening or closing information of the sealed door, so that when the sealed door is opened, the fan is controlled to work, agitate the air flow in the exhaust pipe, and form a negative pressure environment to attract the escaping gas;

[0021] S4: When entering each test area, the staff needs to go through a secondary air shower in front of the sealed door. The photoelectric sensor detects that the staff is standing on the round plate, and then the motor is started to rotate 360°. At the same time, the air outlet blows air and the air inlet inhales air;

[0022] S5: The air outlet nozzle blows air in the direction of the air inlet nozzle. The airflow blows away the tiny dust and impurities on the staff and enters the air inlet nozzle along with the airflow. The air inlet nozzle is connected with the exhaust pipe to discharge the impurities.

[0023] 3. Beneficial effects

[0024] Compared with the prior art, the advantages of the present invention are:

[0025] (1) The present technical solution seals and packages sediments and bones. When conducting experiments on sediments and bones, the sealed sediments and bones are sent to the bone area, and then to the experimental operation area. The bones are sent to the part of the bone area located in the experimental operation area, and the sediments are sent to the sediment area. In order to obtain information molecules in the bones and sediments, the researchers leave the clean passage from the exit of the building, and then enter the clean passage along the preparation room, and enter the bone area and the sediment area in turn to conduct experiments on information molecules. It is prohibited for experimental personnel to travel back and forth between the various areas or return by the original route. The experimental personnel are guided to travel in one direction through the bone area, the clean passage, and the sediment area, which drives the airflow to flow in one direction, reduces the number of microorganisms that are dispersed to various areas with the airflow, and reduces the risk of cross-contamination in the laboratory.

[0026] (2) The technical solution aims multiple distance sensors at the sealed doors of the clean passages connecting the skeleton area and the sediment area respectively. When the experimenters enter and exit the skeleton area and the sediment area, the sealed door is opened to control the first fan to work, agitate the airflow in the exhaust pipe, and form a negative pressure environment to attract the escaping gas, which is finally disinfected by the purification device and discharged into the air. Conversely, when the isolation door is closed, the first fan is promptly controlled to stop, saving electricity and eliminating the need to exhaust air all the time.

[0027] (3) This technical solution sets up a secondary air shower mechanism at the entrance and exit of each test area. When the staff opens the sealed door, the first fan inhales air while the secondary air shower mechanism performs a 360° air shower on the staff, thereby removing microorganisms and impurities attached to the staff to the greatest extent, thereby improving the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention from a top view;

[0029] Figure 2 It is a structural schematic diagram of the secondary air shower mechanism in the present invention;

[0030] Figure 3 It is a rear view structural schematic diagram of the secondary air shower mechanism in the present invention;

[0031] Figure 4 It is a structural schematic diagram of the transfer station of the present invention;

[0032] Figure 5 For the present invention Figure 1 A in the enlarged view;

[0033] Figure 6 For the present invention Figure 4 The enlarged view of point B in the figure;

[0034] Figure 7 It is a control circuit diagram of the repeater of the present invention.

[0035] Description of the numbers in the figure:

[0036] 1. Building; 2. Preparation room; 3. Disinfection station; 4. Skeleton area; 41. Skeleton processing room; 42. Skeleton DNA processing room; 43. Skeleton DNA library building room; 5. Clean passage; 6. Sediment area; 61. Sediment ancient DNA extraction room; 62. Sediment ancient DNA library building room; 7. Ancient protein room; 8. Reagent mixing room; 9. Storage room; 10. Power well; 11. Material transfer channel; 12. Partition wall; 13. Exhaust pipe; 14. Distance sensor; 15. First fan; 16. Door frame; 17. Sealed door; 18. Air inlet nozzle; 19. Guide pipe; 20. Air outlet nozzle; 21. Exhaust pipe; 22. Groove; 23. Motor; 24. First gear; 25. Second gear; 26. Drive shaft; 27. Round plate; 28. Photoelectric sensor; 29. ​​Round groove; 30. Ring plate; 31. Ring groove; 32. Second fan. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] See also Figure 1-7 A clean air shower room for entering and exiting a super clean laboratory comprises a housing 1, a preparation room 2 is arranged at the entrance of the housing 1, the preparation room 2 extends into the interior of the housing 1 and is provided with a disinfection connecting platform 3, a skeleton area 4 is arranged at one end of the disinfection connecting platform 3, a clean passage 5 connected to the preparation room 2 is opened in the middle of the housing 1, a partition mechanism is arranged on the lower wall of the clean passage 5, a sediment area 6 is arranged on the side of the clean passage 5 away from the skeleton area 4, door frames 16 are installed at the entrances and exits of the preparation room 2, the skeleton area 4 and the sediment area 6, a sealing door 17 is installed in the door frame 16, and a secondary air shower mechanism is arranged on the sealing door 17, a turntable is arranged on the floor of the housing 1 below the door frame 16, the experimenters are guided to pass in one direction through the skeleton area 4, the clean passage 5 and the sediment area 6, the airflow is driven to flow in one direction, the microorganisms drifting to various areas with the airflow are reduced, and the risk of cross contamination in the laboratory is reduced.

[0040] See also Figure 1The skeleton area 4 includes a skeleton processing chamber 41 arranged at one end of the disinfection platform 3, a skeleton DNA processing chamber 42 is arranged at the end of the skeleton processing chamber 41 away from the preparation room 2, a skeleton DNA library building chamber 43 is arranged at the end of the skeleton DNA processing chamber 42 away from the skeleton processing chamber 41, the outlet of the skeleton DNA processing chamber 42 is connected with the inlet of the skeleton DNA library building chamber 43, the outlet of the skeleton DNA library building chamber 43 is connected with the clean passage 5, the skeleton DNA processing chamber 42 and the skeleton DNA library building chamber 43 are both equipped with refrigerators, and the sealed packaged sediments and bones are sent to the skeleton processing chamber 41 along the preparation room 2 for preliminary cleaning and disinfection, and the clean sediments and bones are sent to the disinfection platform 3 by opening the push-pull plate for disinfection, and the push-pull plate is closed, and then returned to the preparation room 2, entering the clean passage 5, and arriving at the skeleton DNA processing chamber 42, the clean bones are placed on the biosafety cabinet, the DNA information in the bones is extracted, the skeleton DNA experiment is carried out, uploaded to the database, and then sent to the skeleton DNA library building chamber 43, stored in the refrigerator for standby use.

[0041] See also Figure 1 The sediment area 6 includes a sediment ancient DNA extraction room 61 arranged on one side of the clean passage 5, and a sediment ancient DNA library construction room 62 is arranged on one side of the sediment ancient DNA extraction room 61. The inlet of the sediment ancient DNA library construction room 62 is connected with the outlet of the sediment ancient DNA extraction room 61, and the outlet of the sediment ancient DNA library construction room 62 is connected with the clean passage 5. The sediment ancient DNA extraction room 61 and the sediment ancient DNA library construction room 62 are both equipped with refrigerators. After leaving the skeleton area 4, the sediment area 6 is reached along the clean passage 5. First, enter the sediment ancient DNA extraction room 61, put the disinfected sediment on the biosafety cabinet, extract the ancient DNA information in the sediment, conduct ancient DNA experiments, upload it to the database, and then send it to the sediment ancient DNA library construction room 62, store it in the refrigerator for standby use.

[0042] See also Figure 1 An ancient protein chamber 7 is arranged on the side of the sediment ancient DNA extraction chamber 61 away from the sediment ancient DNA library building chamber 62, a reagent mixing chamber 8 is arranged on the side of the ancient protein chamber 7 away from the sediment ancient DNA extraction chamber 61, a storage chamber 9 is arranged at the outlet of the housing 1, a high-voltage well 10 is arranged on the outside of the housing 1, and a material transfer channel 11 is opened between one side of the reagent mixing chamber 8 and one side of the storage chamber 9.

[0043] See also Figure 1A partition wall 12 is provided in the middle of the clean passage 5, and a gap is left between the end of the partition wall 12 away from the preparation room 2 and the inner wall of the house 1. Exhaust pipes 13 are provided on both sides of the partition wall 12, and multiple air inlet pipes are provided on the exhaust pipe 13. Multiple distance sensors 14 are provided on the outer side of the exhaust pipe 13. A first fan 15 is installed on the outer wall of the house 1. One end of the exhaust pipe 13 passes through the house 1 and is connected to the first fan 15. When the experimenter enters and exits the skeleton area 4 and the sediment area 6, the sealed door 17 is opened, and the gas in the skeleton area 4 or the sediment area 6 escapes. The distance sensor 14 monitors the distance of the isolation door in real time to obtain the opening or closing information of the sealed door 17, so that when the sealed door 17 is opened, the first fan 15 is controlled to work, and the airflow in the exhaust pipe 13 is agitated to form a negative pressure environment to attract the escaped gas, and finally it is sterilized through the purification device and then discharged into the air. On the contrary, when the isolation door is closed, the first fan 15 is promptly controlled to stop, saving electric energy, and there is no need to exhaust air all the time.

[0044] See also Figure 1 The bone DNA processing room 42, the bone DNA library building room 43, the sediment ancient DNA extraction room 61 and the sediment ancient DNA library building room 62 are all equipped with refrigerators, and a material transfer channel 11 is opened between one side of the reagent mixing room 8 and one side of the storage room 9.

[0045] See also Figure 2 and Figure 3 The secondary air shower mechanism comprises a plurality of air inlet nozzles 18, which are fixedly mounted on the sealed door 17. The tail ends of the plurality of air inlet nozzles 18 are fixedly connected to the same air guide pipe 19. The other end of the air guide pipe 19 penetrates the door frame 16 and is connected to the exhaust pipe 13. The side wall of the door frame 16 away from the air guide pipe 19 is fixedly mounted with a plurality of air outlet nozzles 20. The other end of the air outlet nozzles 20 is fixedly connected to the same exhaust pipe 21. A second fan 32 is mounted on the outer wall of the housing 1. The other end of the exhaust pipe 21 penetrates the housing 1 and is connected to the second fan 32. The second fan (32) is mounted on the outside of the clean passage (5). By arranging the secondary air shower mechanism at the entrance and exit of each test area, when the staff opens the sealed door 17, the first fan 15 inhales air while the secondary air shower mechanism is used to perform a 360° air shower on the staff, thereby removing microorganisms and impurities attached to the staff to the greatest extent, thereby improving the purification effect.

[0046] Among them, when the staff passes through the air shower room once, the dust, impurities or microorganisms attached to the staff in the external environment can be removed, reducing the risk of other microbial substances entering the laboratory and preventing the organic microorganisms carried by the staff from contacting the biological samples and causing damage and corrosion to the samples;

[0047] After the staff have worked in multiple test areas (such as preparation room 2, clean channel 5, sediment area 6 and bone area 4, etc.), they will work on some paleontological materials, such as bone repair, DNA extraction or biological material repair and sorting. Bone repair will inevitably produce a certain amount of dust. During the repair process, some dust will adhere to the staff's clothes and skin pores. If the staff does not perform air shower cleaning when leaving the laboratory, the dust they carry will enter other test areas. When testing the paleontological materials later, substances from other test areas will be detected, affecting the accuracy of the test;

[0048] If the dust contains organic microorganisms, when the organic microorganisms enter other test areas and come into contact with other paleontological materials, there is a risk of damage and even large-scale cross-infection problems.

[0049] See also Figure 4 and Figure 6 The turntable includes a circular groove 29, which is opened on the floor of the house 1 and located at the lower side of the door frame 16. A groove 22 is opened on the floor of the circular groove 29, and a motor 23 is fixedly installed on the floor of the groove 22. A first gear 24 is fixedly connected to the output shaft of the motor 23, and a second gear 25 is meshed with the left side of the first gear 24. A transmission shaft 26 is fixedly connected to the top surface of the second gear 25, and a circular plate 27 is fixedly connected to the top of the transmission shaft 26. An annular plate 30 is fixedly connected to the bottom surface of the circular plate 27. An annular groove 31 is opened on the bottom surface of the circular groove 29, and the annular plate 30 is movably connected to the annular groove 31. A photoelectric sensor 28 is installed on the top surface of the circular plate 27. By setting the turntable, when a staff member stands on the circular plate 27, the photoelectric sensor 28 detects that there is someone, and the motor 23 can be started to drive the circular plate 27 to rotate slowly, and cooperate with the secondary air shower mechanism to perform air showering.

[0050] The driving circuit of the turntable includes an air switch, a relay, a fuse, a normally closed button, a normally open button, KA, KM and a photoelectric sensor 28, which are prior art, and the specific connection method will not be described in detail in this solution;

[0051] The model of the photoelectric sensor 28 is BEN5M-MFR.

[0052] During use: the sediment and bones are sealed and packed. When conducting experiments on the sediment and bones, the user takes off the shoes and puts on the shoe laces at the shoe cabinet in the preparation room 2, then enters the preparation room 2, and sends the sealed and packed sediment and bones to the bone area 4, then enters the air shower room, and then enters the experimental operation area, and the treated sediment and bones are placed on the disinfection platform 3 for disinfection, and moves along the clean passage 5 in one direction, sends the bones to the part of the bone area 4 located in the experimental operation area, and sends the sediment to the sediment area 6, so as to obtain the information molecules in the bones and sediment, leaves the clean passage 5 from the exit of the house 1, and then enters the clean passage 5 along the preparation room 2, and enters the bone area 4 and the sediment area 6 in turn to conduct experiments on information molecules, prohibits the experimenters from going back and forth in each area or returning by the original route, guides the experimenters to pass in one direction through the bone area 4, the clean passage 5 and the sediment area 6, drives the airflow to flow in one direction, reduces the microorganisms that drift to each area with the airflow, and reduces the risk of cross contamination in the laboratory;

[0053] A plurality of distance sensors 14 are respectively aligned with the isolation doors of the skeleton area 4 and the sediment area 6 connecting the clean passage 5. When the experimenter enters and exits the skeleton area 4 and the sediment area 6, the isolation door is opened, and the gas in the skeleton area 4 or the sediment area 6 escapes. The distance of the isolation door is monitored in real time by the distance sensor 14 to obtain the opening or closing information of the isolation door, so that when the isolation door is opened, the first fan 15 is controlled to work, and the airflow in the exhaust pipe 13 is agitated to form a negative pressure environment to attract the escaped gas, and finally the gas is sterilized by the purification device and then discharged into the air. On the contrary, when the isolation door is closed, the first fan 15 is promptly controlled to stop, saving electric energy, and there is no need to exhaust air all the time;

[0054] When the staff enters from one test area to another, when the sealing door 17 is opened, the first fan 15 runs, and when the photoelectric sensor 28 detects that there is someone above the circular plate 27, the motor 23 is started, and the output shaft of the motor 23 drives the first gear 24 to rotate, and the first gear 24 engages the second gear 25 and drives the circular plate 27 to rotate slowly through the transmission shaft 26, and the circular plate 27 drives the staff to rotate 360°. At the same time, the second fan 32 runs, and the air flow is blown out from the air outlet nozzle 20 through the exhaust pipe 21. The air flow blows away the microorganisms and bacteria attached to the staff. At this time, the air inlet nozzle 18 absorbs the air flow together with the microorganisms blown by the air outlet nozzle 20, and discharges it through the exhaust pipe 13, thereby enhancing the air shower effect on the staff, preventing cross-infection in multiple test areas, and improving the cleanliness of the test area.

[0055] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air shower room for entering and exiting a clean room, comprising a room body (1), characterized in that: A preparation room (2) is provided at the entrance of the housing (1), the preparation room (2) extends into the interior of the housing (1) and is provided with a disinfection connection platform (3), a skeleton area (4) is provided at one end of the disinfection connection platform (3), a clean passage (5) communicating with the preparation room (2) is provided in the middle of the interior of the housing (1), a partition mechanism is provided on the lower wall of the clean passage (5), a sediment area (6) is provided on the side of the clean passage (5) away from the skeleton area (4), door frames (16) are installed at the entrances and exits of the preparation room (2), the skeleton area (4) and the sediment area (6), a sealing door (17) is installed in the door frame (16), a secondary air shower mechanism is provided on the sealing door (17), and a turntable is provided on the floor of the housing (1) below the door frame (16); A partition wall (12) is arranged in the middle of the clean passage (5), exhaust pipes (13) are arranged on both sides of the partition wall (12), a plurality of air inlet pipes are arranged on the exhaust pipe (13), a first fan (15) is installed on the outer wall of the house (1), one end of the exhaust pipe (13) passes through the house (1) and is connected to the first fan (15), and a plurality of distance sensors (14) for monitoring the sealing door (17) are arranged on the outer side of the exhaust pipe (13); The secondary air shower mechanism comprises a plurality of air inlet nozzles (18), each of which is fixedly mounted on the sealing door (17); the tail ends of the plurality of air inlet nozzles (18) are fixedly connected to a same air guide pipe (19); the other end of the air guide pipe (19) passes through the door frame (16) and is connected to the exhaust pipe (13); a plurality of air outlet nozzles (20) are fixedly mounted on the side wall of the door frame (16) away from the air guide pipe (19); the other end of the air outlet nozzles (20) is fixedly connected to a same exhaust pipe (21); a second fan (32) is mounted on the outer wall of the roof (1); the other end of the exhaust pipe (21) passes through the roof (1) and is connected to the second fan (32); the second fan (32) is mounted on the outside of the clean passage (5); The skeleton area (4) comprises a skeleton processing chamber (41) arranged at one end of the disinfection platform (3); a skeleton DNA processing chamber (42) is arranged at one end of the skeleton processing chamber (41) away from the preparation chamber (2); and a skeleton DNA library building chamber (43) is arranged at one end of the skeleton DNA processing chamber (42) away from the skeleton processing chamber (41); The sediment area (6) comprises a sediment ancient DNA extraction chamber (61) arranged on one side of the clean channel (5), and a sediment ancient DNA library construction chamber (62) is arranged on one side of the sediment ancient DNA extraction chamber (61); An ancient protein chamber (7) is arranged on the side of the sediment ancient DNA extraction chamber (61) away from the sediment ancient DNA library construction chamber (62), and a reagent mixing chamber (8) is arranged on the side of the ancient protein chamber (7) away from the sediment ancient DNA extraction chamber (61).

2. The clean air shower room for entering and exiting a clean laboratory according to claim 1, characterized in that: A storage chamber (9) is provided at the outlet of the housing (1), a strong current well (10) is provided on the outside of the housing (1), and a material transfer channel (11) is provided between one side of the reagent mixing chamber (8) and one side of the storage chamber (9).

3. The clean air shower room for entering and exiting a clean laboratory according to claim 1, characterized in that: A gap is left between the end of the partition wall (12) away from the preparation room (2) and the inner wall of the house (1).

4. The clean air shower room for entering and exiting a clean laboratory according to claim 1, characterized in that: The bone DNA processing room (42), the bone DNA library building room (43), the sediment ancient DNA extraction room (61) and the sediment ancient DNA library building room (62) are all equipped with refrigerators, and a material transfer channel (11) is opened between one side of the reagent mixing room (8) and one side of the storage room (9).

5. The clean air shower room for entering and exiting a clean laboratory according to claim 1, characterized in that: The turntable comprises a circular groove (29), the circular groove (29) being arranged on the floor of the house (1) and located at the lower side of the door frame (16), the circular groove (29) being provided with a groove (22) on the floor, a motor (23) being fixedly mounted on the floor of the groove (22), a first gear (24) being fixedly connected to the output shaft of the motor (23), a second gear (25) being meshed on the left side of the first gear (24), a transmission shaft (26) being fixedly connected to the top surface of the second gear (25), a circular plate (27) being fixedly connected to the top end of the transmission shaft (26), a ring plate (30) being fixedly connected to the bottom surface of the circular plate (27), an annular groove (31) being arranged on the bottom surface of the circular groove (29), the annular plate (30) being movably connected to the annular groove (31), and a photoelectric sensor (28) being mounted on the top surface of the circular plate (27).

6. An air shower method for entering and exiting a clean air shower room in an ultra-clean laboratory, characterized in that: Using a clean room air shower for entering and exiting a clean room as claimed in any one of claims 1 to 5, the method comprises the following steps: S1: Before entering the clean room, take off your shoes at the shoe cabinet in front of the preparation room (2) and put on shoelace covers before entering the preparation room (2). After entering the preparation room (2), put on disinfected special slippers, protective clothing, hair nets, surgical masks, sleeves and two layers of medical gloves. Check your clothes in front of the mirror. After confirming that there is no exposure and the protective clothing is not damaged, you can enter the air shower room; S2: After entering the air shower room, please rotate your body according to the instructions to perform air shower. You can enter the experimental operation area only after hearing the prompt tone after the air shower. S3: monitoring the distance of the sealed door (17) in real time through the distance sensor (14) to obtain the opening or closing information of the sealed door (17), so that when the sealed door (17) is opened, the first fan (15) is controlled to work, and the airflow in the exhaust pipe (13) is agitated to form a negative pressure environment to attract the escaping gas; S4: When entering each test area, the staff needs to undergo a secondary air shower in front of the sealed door (17). The photoelectric sensor (28) detects that the staff is standing on the circular plate (27), and then the motor (23) is started to rotate 360°. At the same time, the air outlet nozzle (20) blows air and the air inlet nozzle (18) inhales air; S5: The air outlet nozzle (20) blows air in the direction of the air inlet nozzle (18), and the air flow blows away the tiny dust impurities on the worker's body, and enters the air inlet nozzle (18) along with the air flow. The air inlet nozzle (18) is connected to the exhaust pipe (13) to discharge the impurities.

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