High-precision laboratory air quality control system

Abstract

The invention relates to a high-precision laboratory air quality control system, and belongs to the technical field of laboratory air quality control, the high-precision laboratory air quality control system comprises a laboratory box body, and the outer side wall of the laboratory box body is provided with a first mounting port, a second mounting port and two third mounting ports; the laboratory box body is provided with a first sealing assembly used for sealing the first mounting opening and a second sealing assembly used for sealing the third mounting opening, the laboratory box body is provided with a turnover sealing assembly, the turnover sealing assembly is used for controlling the medium efficiency filter to turn over and sealing the upper air inlet duct, and a storage assembly and a transportation assembly are mounted in the air supply space. The storage assembly is used for storing the high-efficiency filter, and the conveying assembly is used for grabbing the high-efficiency filter. According to the invention, the replacement efficiency of the filter and the control processing device is improved, the time of exposing the air duct to the outside air is reduced, the invasion amount of unfiltered air is reduced, the continuous operation of the system is ensured, and the long-term stability effect of the experimental environment is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of laboratory air quality control, and in particular to a high-precision laboratory air quality control system. Background Art

[0002] In high-precision laboratories (such as biosafety laboratories, clean laboratories, microelectronics laboratories, etc.), the air quality control system has extremely high requirements for the cleanliness, temperature, humidity and pollutant control of the experimental environment. Traditional laboratory ventilation systems usually use one-way flow or circulating air systems, but in the long-term operation process, filter replacement, maintenance and system shutdown and maintenance may cause external unfiltered air to enter the laboratory, destroying the stability of the experimental environment, especially for long-term and high-cleanliness experiments (such as cell culture, nanomaterial preparation, etc.).

[0003] At present, the laboratory ventilation system has the following main problems: primary filters, medium filters and some other air quality treatment devices (such as dynamic ion derivatization devices / ion oxygen odor treatment equipment, etc.) are generally installed in the air duct. When replacing the primary filters and medium filters, the air duct needs to be dismantled and the operation is not only cumbersome, but also may introduce external pollutants due to the entry and exit of personnel. High-efficiency filters are usually installed on the top of the laboratory. The replacement of high-efficiency filters often requires the removal of the top plate structure and manual operation of the ladder into the laboratory. There is a risk of directly carrying viruses and bacteria into the laboratory. In addition, the traditional system needs to be completely shut down when replacing filters or maintenance, resulting in interruption of airflow in the laboratory, fluctuations in temperature, humidity and cleanliness, which may affect the experimental results. Summary of the invention

[0004] In order to improve the replacement efficiency of filters and control processing devices, reduce the time that the air duct is exposed to the outside air, reduce the intrusion of unfiltered air, and at the same time ensure the continuous operation of the system and ensure the long-term stability of the experimental environment, the present application provides a high-precision laboratory air quality control system.

[0005] The high-precision laboratory air quality control system provided in this application adopts the following technical solution: A high-precision laboratory air quality control system, including a laboratory box body. Both sides of the laboratory box body are provided with an upper air inlet duct and a lower air outlet duct at intervals. The upper air inlet duct and the lower air outlet duct on the same side are jointly connected with an air circulation unit. The top of the laboratory box body is connected with an installation frame, and the installation frame supports a number of high-efficiency filters and a number of top plates. A air supply space is separated jointly by the installation frame, the high-efficiency filters, the top plates and the laboratory box body. The upper air inlet duct is communicated with the air supply space. An initial filter, an intermediate filter and an air quality comprehensive treatment device are sequentially arranged in the upper air inlet duct along its air supply direction. A terminal odor comprehensive treatment device is installed in the lower air outlet duct; First installation openings, second installation openings and two third installation openings are formed in the outer side wall of the laboratory box body. The initial filter is inserted into the upper air inlet duct through the first installation opening. The intermediate filter is installed in the upper air inlet duct through the second installation opening. The air quality comprehensive treatment device and the terminal odor comprehensive treatment device are respectively installed on the laboratory box body through one of the third installation openings; The laboratory box body is provided with a first closing component for closing the first installation opening and a second closing component for closing the third installation opening. The laboratory box body is provided with a flipping closing component, which is used to simultaneously control the opening of the second installation opening, flip the intermediate filter so that its windward surface faces the second installation opening, and close the upper air inlet duct. A storage component and a transportation component are installed in the air supply space. The storage component is used to store new high-efficiency filters. The transportation component is used to grab the old high-efficiency filters to the storage component and install the new high-efficiency filters on the installation frame.

[0006] By adopting the above technical solutions, the initial filter, the intermediate filter, the air quality comprehensive treatment device and the terminal odor comprehensive treatment device can all be directly removed and extracted from the outer side wall of the laboratory box body, and the first installation opening, the second installation opening and the third installation opening can be closed in time through the first closing component, the flipping closing component and the second closing component, shortening the contact time between the upper air inlet duct and the lower air outlet duct and the external air, reducing the intrusion amount of unfiltered air, ensuring the continuous cleanliness and stability of the experimental environment, and moreover, there is no need to disassemble the upper air inlet duct and the lower air inlet duct, which is beneficial to improving the replacement efficiency.

[0007] When replacing the high-efficiency filter, through the cooperation of the storage component and the transportation component, the high-efficiency filter is automatically replaced, and there is no need for personnel to enter the laboratory to disassemble the top plate structure, which is beneficial to improving the replacement efficiency and eliminating the risk of artificially carrying pollutants (such as dust and microorganisms) into the laboratory box body.

[0008] Moreover, when the primary filter, medium filter, comprehensive air quality control device and terminal odor control device on one side are being replaced, the air circulation unit on that side needs to stop working, but the air circulation unit on the other side can continue to operate, avoiding complete shutdown of the system, ensuring continuous operation of the system, and ensuring the long-term stability of the experimental environment.

[0009] Optionally, the first closing component includes a first sealing plate and a first movable frame, the first sealing plate is slidably inserted in the side wall of the laboratory box, the inner wall of the first mounting port is provided with a first slot, and a spring is also installed in the side wall of the laboratory box, the spring is connected to the first sealing plate, the primary filter is installed in the first movable frame, one side of the first movable frame is adapted to the first mounting port, when the first movable frame is located in the upper air inlet duct, the first sealing plate abuts against the first movable frame, and when the first movable frame is pulled out of the laboratory box, the first sealing plate is inserted into the first slot.

[0010] By adopting the above technical solution, when the first movable frame and the primary filter are pulled out, the spring pushes the first sealing plate to be quickly inserted into the first slot, which greatly shortens the exposure time of the upper air inlet duct.

[0011] Optionally, the first sealing plate is connected to a guide wheel at one end that rotates toward the first slot. When the first movable frame is pulled out of the laboratory box, the guide wheel is inserted into the first slot. A strip hole is provided on the side wall of the laboratory box. The first sealing plate is connected to a push-pull column. The push-pull column extends out of the strip hole. The push-pull column is hinged with a buckle. A fixed column is installed on the side wall of the first sealing plate. When the first movable frame is located in the upper air inlet duct, the guide wheel abuts against the first movable frame, and the buckle can be buckled on the fixed column.

[0012] By adopting the above technical solution, the design of the guide wheel can make it easier to pull the first sliding frame out of the upper air inlet duct, and when inserting a new primary filter, the push-pull column can be manually pushed to reset the first sealing plate, and the buckle can be buckled on the fixed column to lock the position of the first sealing plate, making it convenient for one person to replace and install the primary filter.

[0013] Optionally, the flip closure assembly includes a second sealing plate, a third sealing plate and a second movable frame, the second sealing plate, the third sealing plate and the second movable frame are fixed to each other and hinged together on one side of the second mounting port, the second movable frame is located between the second sealing plate and the third sealing plate, the second sealing plate and the third sealing plate are both perpendicular to the second movable frame, the second sealing plate, the third sealing plate and the second movable frame are all provided with sealing gaskets at one end away from the hinge axis, the second movable frame and the second sealing plate are adapted to the upper air inlet duct, the third sealing plate is adapted to the second mounting port, the medium efficiency filter is installed in the second movable frame, and when the third sealing plate seals the second mounting port, the second movable frame is located in the upper air inlet duct.

[0014] By adopting the above technical solution, first, the third sealing plate seals the second installation port during normal use. When the medium-efficiency filter needs to be replaced, the third sealing plate is flipped out of the second installation port, and the second movable frame is flipped to the second installation port at the same time. The second sealing plate blocks the upper air inlet to prevent external air from pouring in. The staff can directly take out the medium-efficiency filter from the second movable frame and replace it with a new one. The reason for flipping the second movable frame to 90° before taking out the medium-efficiency filter is that the filter cloth of the medium-efficiency filter is relatively long, and the width of the second movable frame is relatively small. Therefore, if the medium-efficiency filter is directly pulled out, the caliber of the second installation port will be appropriately reduced. Then, the filter cloth of the medium-efficiency filter will be stuck in the second installation port during the extraction process, and it is not convenient to insert the new medium-efficiency filter. Therefore, it is designed to be flip-type to avoid friction and jamming between the filter cloth and the edge of the second installation port, which is more convenient for the installation and removal of the medium-efficiency filter.

[0015] Optionally, a sealing cover is provided on the laboratory box, and the sealing cover covers the second sealing plate, the third sealing plate and the hinge shaft of the second movable frame.

[0016] By adopting the above technical solution, the sealing cover covers the hinge shaft, thereby reducing the situation where external air directly enters the upper air inlet duct through the gap of the hinge shaft.

[0017] Optionally, the second closing component includes a fourth closing plate, the horizontal wall of the fourth closing plate is hinged with a first swing arm and a second swing arm, the other ends of the first swing arm and the second swing arm are hinged in the third mounting opening, the first swing arm and the second swing arm are staggered up and down and parallel to each other, a third swing arm is hinged on one side of the third mounting opening, the third swing arm is hinged to the horizontal wall of the fourth closing plate, and when the fourth closing plate is in an open state, the fourth closing plate is arranged close to the inner wall of the laboratory box.

[0018] By adopting the above-mentioned technical solution, when taking out the comprehensive air quality control device and the comprehensive terminal odor control device, the fourth sealing plate can be pulled, and with the cooperation of the first swing arm, the second swing arm and the third swing arm, the fourth sealing plate flips over and closes the third installation port, and the hinge points of the first swing arm, the second swing arm and the third swing arm are all arranged on the inner side of the third installation port to avoid external air leakage points, and during normal operation, the fourth sealing plate is completely stored in the upper air inlet duct and does not occupy external space.

[0019] Optionally, the transport component includes a first servo drive unit, the first servo drive unit is connected to a moving base, the moving base is equipped with a second servo drive unit, the moving base is equipped with a first lifting cylinder, the first lifting electric cylinder, the first electric cylinder is equipped with an electric clamp, the first servo drive unit is used to drive the moving base to move along the X-axis direction, and the second servo drive unit is used to drive the first lifting electric cylinder to move along the Y-axis direction.

[0020] By adopting the above technical solution, the first servo drive unit and the second servo drive unit cooperate to drive the first lifting electric cylinder and the electric clamp to move to the top of the high-efficiency filter that needs to be replaced, and then the first lifting electric cylinder drives the electric clamp to grab the high-efficiency filter. Then the first servo drive unit, the second servo drive unit, and the first lifting electric cylinder cooperate to drive the high-efficiency filter to the storage assembly for storage for subsequent unified retrieval, and then grab the new high-efficiency filter at the storage assembly and install it on the mounting frame.

[0021] Optionally, the storage component is arranged adjacent to the side wall of the laboratory box, and the storage component includes a third servo drive unit, and the third servo drive unit is connected to the second lifting cylinder. The second lifting cylinder and the third servo drive unit are provided with limiting plates on both sides, and a transverse cylinder is provided on the side opposite to each other of the two limiting plates, and the transverse cylinder is connected to a support plate, and the support plate can pass through the limiting plate, and the new high-efficiency filter stack is arranged between the two limiting plates and supported on the two support plates.

[0022] By adopting the above technical solution, when the old high-efficiency filter moves close to the limit plate, the third servo drive unit drives the second lifting cylinder to extend from between the two limit plates, and then the old high-efficiency filter is placed on the second lifting cylinder, and the third servo drive unit drives the second lifting cylinder to move back between the two limit plates, and then the transverse cylinder is started to move the two support plates away from each other. At this time, the new high-efficiency filter falls and is stacked with the old high-efficiency filter, and then the second lifting cylinder drives the stacked high-efficiency filters to lift synchronously, and the transverse cylinder drives the support plate to reset again, and the second lifting cylinder falls and resets, so that the high-efficiency filter is stacked and supported on the support plate again, and then the electric gripper grabs the high-efficiency filter at the top and installs it on the mounting frame.

[0023] Optionally, a volatile organic compound transmitter is installed on the top of the laboratory box, the upper air inlet duct is connected to the air supply space through an air supply duct, the air supply duct is installed with an ozone transmitter, a VOC / TVOC transmitter, an online dust particle counter and an online planktonic bacteria sampler are hung in the laboratory box, and a first differential pressure gauge and a second differential pressure gauge are also installed on the laboratory box. The first differential pressure gauge is used to detect the air pressure difference on both sides of the primary filter, and the second differential pressure gauge is used to detect the air pressure difference on both sides of the medium efficiency filter.

[0024] By adopting the above technical solution, when the volatile organic compound transmitter, VOC / TVOC transmitter, online dust particle counter and online floating bacteria sampler detect abnormal data, the air quality comprehensive treatment device and the terminal odor comprehensive treatment device are started synchronously in strong gear until the relevant data recovers the index, and the air quality comprehensive treatment device and the terminal odor comprehensive treatment device are continuously operated. When the ozone transmitter detects that the ozone concentration exceeds the standard, the air quality comprehensive treatment device and the terminal odor comprehensive treatment device are switched to weak gear. If the air quality comprehensive treatment device and the terminal odor comprehensive treatment device are in the weak gear state and the relevant data continue to be normal, the air quality comprehensive treatment device and the terminal odor comprehensive treatment device are turned off. This solution constructs a hierarchical response system for full-parameter environmental monitoring. Through the data fusion of multiple types of sensors, it realizes the accurate identification of pollution types, the intelligent regulation of treatment devices and the dynamic optimization of system energy efficiency. The first differential pressure gauge and the second differential pressure gauge can timely detect whether the primary filter and the medium filter need to be replaced.

[0025] Optionally, the top of the laboratory box is provided with a first inspection port for replacing the volatile organic compound transmitter, a second inspection port for replacing the ozone transmitter, and a replacement port for taking out the old high-efficiency filter.

[0026] By adopting the above technical solution, the volatile organic compound transmitter, ozone transmitter and high-efficiency filter can be uniformly taken out and replaced outside the laboratory box, without the need for manual entry into the laboratory box, thus avoiding the risk of human-borne pollutants (such as dust, microorganisms) entering the laboratory box.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. The primary filter, medium filter, air quality comprehensive treatment device and terminal odor comprehensive treatment device can be directly removed and pulled out from the outer wall of the laboratory box, and the first installation port, the second installation port and the third installation port can be sealed in time through the first sealing component, the flip sealing component and the second sealing component, shortening the contact time between the upper air inlet and the lower air outlet and the external air, reducing the intrusion of unfiltered air, ensuring the continuous cleanliness and stability of the experimental environment, and there is no need to disassemble the upper air inlet and the lower air inlet, which is conducive to improving the replacement efficiency; 2. When replacing the high-efficiency filter, the high-efficiency filter can be automatically replaced through the cooperation of the storage component and the transportation component. There is no need for personnel to enter the laboratory to dismantle the top plate structure, which is conducive to improving the replacement efficiency. The volatile organic compound transmitter, ozone transmitter and high-efficiency filter can be uniformly taken out and replaced outside the laboratory box, eliminating the risk of human-carried pollutants (such as dust and microorganisms) entering the laboratory box; 3. When the primary filter, medium filter, air quality comprehensive treatment device and terminal odor comprehensive treatment device on one side are being replaced, the air circulation unit on that side needs to stop working, but the air circulation unit on the other side can continue to operate to avoid complete system shutdown, ensure continuous operation of the system and ensure the long-term stability of the experimental environment; 4. The solution builds a full-parameter environmental monitoring hierarchical response system, which realizes accurate identification of pollution types, intelligent regulation of treatment devices and dynamic optimization of system energy efficiency through data fusion of multiple types of sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 It is a structural schematic diagram of the embodiment of the present application for reflecting the first inspection port, the second inspection port, the third inspection port and the replacement port.

[0030] Figure 3 It is a structural schematic diagram of a fan used in an embodiment of the present application.

[0031] Figure 4 yes Figure 1 Enlarged schematic diagram of part A.

[0032] Figure 5 yes Figure 4 Schematic diagram of the enlarged portion B.

[0033] Figure 6 It is a structural schematic diagram of an embodiment of the present application for embodying an online dust particle counter, an online floating bacteria sampler and a VOC / TVOC transmitter.

[0034] Figure 7 yes Figure 6 Enlarged schematic diagram of part C.

[0035] Figure 8 It is a schematic structural diagram of the second closure component used in an embodiment of the present application.

[0036] Fig. 9 It is a schematic structural diagram of the first closure component used in an embodiment of the present application.

[0037] Fig.10 It is a schematic diagram of the structure of the flip closure assembly used to embody the embodiment of the present application.

[0038] Fig.11 This is a schematic diagram of the structure of the storage component and the transport component used in the embodiment of the present application. Explanation of reference numerals: 1. Laboratory box; 11. Upper air inlet; 12. Lower air outlet; 13. First installation port; 131. First slot; 14. Second installation port; 15. Third installation port; 16. First inspection port; 17. Second inspection port; 18. Third inspection port; 19. Replacement port; 110. Strip hole; 111. Air supply space; 112. Air supply pipe; 2. Air circulation unit; 21. Installation box; 22. Fan; 31. Installation frame; 32. High-efficiency filter; 33. Top plate; 41. Primary filter; 42. Medium-efficiency filter; 43. Air quality comprehensive treatment device; 44. Terminal odor comprehensive treatment device; 45. Volatile organic compound transmitter; 46. Ozone transmitter; 47. VOC / TVOC transmitter; 48. Online dust particle counter; 49. Online floating bacteria sampling Sampler; 410, first differential pressure gauge; 411, second differential pressure gauge; 5, first closing component; 51, first closing plate; 52, first movable frame; 53, guide wheel; 54, spring; 55, push-pull column; 56, buckle ring; 57, fixed column; 6, second closing component; 61, fourth closing plate; 62, first swing rod; 63, second swing rod; 64, third swing rod; 7, flip closing component; 71, second closing plate; 72, third closing plate; 73, second movable frame; 74, sealing gasket; 75, sealing cover; 8, storage component; 81, third servo drive unit; 82, second lifting cylinder; 83, limit plate; 84, horizontal cylinder; 85, support plate; 9, transportation component; 91, first servo drive unit; 92, second servo drive unit; 93, moving seat; 94, first lifting electric cylinder; 95, electric clamp. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-11 This application is described in further detail.

[0040] The embodiment of the present application discloses a high-precision laboratory air quality control system.

[0041] like Figure 1 , Figure 2 and Figure 3 The high-precision laboratory air quality control system includes a laboratory box 1, and an upper air inlet duct 11 and a lower air outlet duct 12 are provided on both sides of the laboratory box 1. The upper air inlet duct 11 is located above the lower air outlet duct 12, and the upper air inlet duct 11 and the lower air outlet duct 12 on the same side are commonly connected to an air circulation unit 2. In the embodiment of the present application, the air circulation unit 2 includes two installation boxes 21, and the two installation boxes 21 are spliced ​​with each other. The two groups of upper air inlets 11 and lower air inlets are each connected to an installation box 21, and a circulating air duct is provided in the installation box 21, and a fan 22 is built in the circulating air duct.

[0042] The top of the laboratory box 1 is connected with a mounting frame 31, which includes several frame beams. Adjacent frame beams are connected by connecting block bolts. The connecting block located in the middle of the laboratory box 1 is cross-shaped, the connecting block located at the edge of the laboratory box 1 is T-shaped, and the connecting block located at the corner of the laboratory box 1 is L-shaped. The laboratory box 1 is bolted with a supporting steel beam, and the frame beam located at the edge of the laboratory, the T-shaped connecting block and the L-shaped connecting block are all placed on the supporting steel beam. The mounting frame 31 supports several high-efficiency filters 32 and a top plate 33. The four adjacent frame beams enclose a rectangular space, and the four adjacent frames jointly support the high-efficiency filter 32 / top plate 33. In the embodiment of the present application, there are 12 filters in total, and they are installed in the middle of the mounting frame 31 in a 4x3 arrangement. The mounting frame 31, the high-efficiency filter 32, the top plate 33 and the laboratory box 1 are jointly separated by an air supply space 111, and the air in the air supply space 111 can only be discharged into the laboratory box 1 through the high-efficiency filter 32.

[0043] like Figure 1 and Figure 4 The upper air inlet 11 is connected to the air supply space 111 through the air supply pipe 112. The air supply pipe 112 is installed in the middle of the upper air inlet 11. The upper air inlet 11 is provided with a primary filter 41, a medium filter 42 and an air quality comprehensive treatment device 43 in sequence along the air supply direction. The lower air outlet 12 is provided with a terminal odor comprehensive treatment device 44. In the embodiment of the present application, the air quality comprehensive treatment device 43 is a dynamic ion derivatization device, and the terminal odor comprehensive treatment device 44 is an ion oxygen odor treatment device. In the embodiment of the present application, the primary filter 41 is a plate filter that intercepts particles ≥5μm, the medium filter 42 is a bag filter that captures particles 1-5μm, and the high efficiency filter 32 is a box filter that removes particles ≥0.3μm (HEPA) or particles ≥0.1μm (ULPA).

[0044] like Figure 1 , Figure 6 and Figure 7Four volatile organic compound transmitters 45 are installed on the top of the laboratory box 1, and the volatile organic compound transmitter 45 is installed at the center of the connecting block. An ozone transmitter 46 is installed on the air supply duct 112. The detection head of the ozone transmitter 46 extends into the air supply duct 112, and the shell of the ozone transmitter 46 is installed on the outer wall of the air supply duct 112. A VOC / TVOC transmitter 47, an online dust particle counter 48 and an online floating bacteria sampler 49 are hung on the inner wall of the laboratory box 1. The online dust particle counter 48 and the online floating bacteria sampler 49 are arranged near the exhaust port of the lower air outlet 12, 0.8-1.5 meters from the ground.

[0045] A first differential pressure gauge 410 and a second differential pressure gauge 411 are also installed on the laboratory box 1. The first differential pressure gauge 410 is used to detect the air pressure difference on both sides of the primary filter 41, and the second differential pressure gauge 411 is used to detect the air pressure difference on both sides of the medium filter 42. The first differential pressure gauge 410 and the second differential pressure gauge 411 are both located at the top of the upper air inlet duct 11 and in the air supply space 111.

[0046] like Figure 1 , Figure 2 and Figure 8 The two outer walls of the laboratory box 1 are provided with a first installation port 13, a second installation port 14 and two third installation ports 15. The primary filter 41 is inserted into the upper air inlet 11 through the first installation port 13, the medium efficiency filter 42 is installed in the upper air inlet 11 through the second installation port 14, and the air quality comprehensive treatment device 43 and the terminal odor comprehensive treatment device 44 are each installed on the laboratory box 1 through a third installation port 15. The top of the laboratory box 1 is provided with a first inspection port 16 for replacing the volatile organic compound transmitter 45, a second inspection port 17 for replacing the ozone transmitter 46, a replacement port 19 for taking out the old high efficiency filter 32, and a third inspection port 18 for replacing the first differential pressure gauge and the second differential pressure gauge.

[0047] The laboratory box 1 is provided with a first closing component 5 for closing the first installation port 13 and a second closing component 6 for closing the third installation port 15. The laboratory box 1 is provided with a flip closing component 7. The flip closing component 7 is used to simultaneously control the opening of the second installation port 14, flip the medium efficiency filter 42 to its windward side facing the second installation port 14, and close the upper air inlet duct 11. A storage component 8 and a transportation component 9 are installed in the air supply space 111. The storage component 8 faces the replacement port 19, and the storage component 8 is used to store a new high-efficiency filter 32. The transportation component 9 is used to grab the old high-efficiency filter 32 to the storage component 8, and install the new high-efficiency filter 32 on the installation frame 31.

[0048] After the air is successively discharged into the upper air inlet duct 11, it passes through the primary filter 41, the intermediate filter 42, and the high-efficiency filter 32 in sequence for filtration and then is discharged into the laboratory cabinet 1. When the volatile organic compound transmitter 45, the VOC / TVOC transmitter 47, the online dust particle counter 48, and the online floating bacteria sampler 49 detect abnormal relevant data, the air quality comprehensive treatment device 43 and the terminal odor comprehensive treatment device are started in strong gear synchronously until the relevant data resumes to the standard, and the air quality comprehensive treatment device 43 and the terminal odor comprehensive treatment device continue to operate. When the ozone transmitter 46 detects that the ozone concentration exceeds the standard, the air quality comprehensive treatment device 43 and the terminal odor comprehensive treatment device 44 are switched to weak gear. If the relevant data remains normal when the air quality comprehensive treatment device 43 and the terminal odor comprehensive treatment device 44 are in the weak gear state, the air quality comprehensive treatment device 43 and the terminal odor comprehensive treatment device 44 are shut down. This solution constructs a full-parameter environmental monitoring hierarchical response system, and through the data fusion of multiple types of sensors, it realizes the accurate identification of pollution types, the intelligent regulation of treatment devices, and the dynamic optimization of system energy efficiency.

[0049] The first differential pressure gauge 410 and the second differential pressure gauge 411 can timely detect whether the primary filter 41 and the intermediate filter 42 need to be replaced. The air quality comprehensive treatment device 43 and the terminal odor comprehensive treatment device 44 have automatic fault lights, which will light up automatically when replacement is needed. The primary filter 41, the intermediate filter 42, the air quality comprehensive treatment device 43, and the terminal odor comprehensive treatment device 44 can all be directly removed from the outer wall of the laboratory cabinet 1, and the first installation port 13, the second installation port 14, and the third installation port 15 are sealed in time through the first sealing component 5, the flipping sealing component 7, and the second sealing component 6, shortening the contact time between the upper air inlet duct 11 and the lower air outlet duct 12 and the external air, reducing the intrusion amount of unfiltered air, ensuring the continuous cleanliness and stability of the experimental environment, and moreover, there is no need to disassemble the upper air inlet duct 11 and the lower air inlet duct, which is beneficial to improving the replacement efficiency.

[0050] According to the wind speed detection of the anemometer in the laboratory cabinet 1 or the calculation of the self-purification time of the laboratory cabinet 1, if the air supply volume drops > 15%, or the self-purification time of the clean room is extended by more than 50%, this indicates that the high-efficiency filter 32 needs to be replaced. Then, combined with manual visual inspection or camera detection combined with a deep learning system, it is judged which filter paper of the high-efficiency filter 32 has obvious damage, cracks or perforations, the frame sealant is cracked, de-bonded, the filter material is severely discolored, or there are mildew spots, and then the high-efficiency filter 32 is replaced. When replacing the high-efficiency filter 32, through the cooperation of the storage component 8 and the transportation component 9, the high-efficiency filter 32 is automatically replaced, and there is no need for personnel to enter the laboratory to disassemble the top plate 33 structure, which is beneficial to improving the replacement efficiency and eliminating the risk of human beings carrying pollutants (such as dust, microorganisms) into the laboratory cabinet 1.

[0051] Moreover, when the primary filter 41, the medium filter 42, the comprehensive air quality control device 43 and the terminal odor comprehensive control device 44 on one side are being replaced, the air circulation unit 2 on that side needs to stop working, but the air circulation unit 2 on the other side can continue to operate, avoiding complete shutdown of the system, ensuring continuous operation of the system, and ensuring the long-term stability of the experimental environment.

[0052] like Figure 4 , Figure 5 and Fig. 9 The first closing component 5 includes a first sealing plate 51 and a first movable frame 52. The first sealing plate 51 is slidably inserted into the side wall of the laboratory box 1. The inner wall of the first installation port 13 is provided with a first slot 131. The first sealing plate 51 is rotatably connected to one end of the first slot 131 with two guide wheels 53. A spring 54 is also installed in the side wall of the laboratory box 1. The spring 54 is connected to the first sealing plate 51. The primary filter 41 is installed in the first movable frame 52. The first movable frame 52 is L-shaped. One side of the first movable frame 52 is adapted to the first installation port 13. A strip hole 110 is provided in the side wall of the laboratory box 1. The first sealing plate 51 is connected to a push-pull column 55. The push-pull column 55 extends out of the strip hole 110. The push-pull column 55 is hinged with a buckle 56. When the first movable frame 52 is located in the upper air inlet 11, the guide wheel 53 abuts against the first movable frame 52, and the buckle 56 can be buckled on the fixed column 57. When the first movable frame 52 is pulled out of the laboratory box 1 , the guide wheel 53 is inserted into the first slot 131 .

[0053] When the first movable frame 52 and the primary filter 41 are pulled out, the spring 54 pushes the guide wheel 53 to quickly insert into the first slot 131 , and the first sealing plate 51 closes the first installation opening 13 , greatly shortening the exposure time of the upper air inlet duct 11 .

[0054] like Figure 4 and Fig.10The flip sealing assembly 7 includes a second sealing plate 71, a third sealing plate 72 and a second movable frame 73. The second sealing plate 71, the third sealing plate 72 and the second movable frame 73 are fixed to each other and hinged together on one side of the second mounting port 14. The second movable frame 73 is located between the second sealing plate 71 and the third sealing plate 72. The second sealing plate 71 and the third sealing plate 72 are both perpendicular to the second movable frame 73. The thickness of the second sealing plate 71 is less than that of the third sealing plate 72. The second sealing plate 71, the third sealing plate 72 and the second movable frame 73 are all provided with a sealing gasket 74 at one end away from the hinge axis. The second movable frame 73 and the second sealing plate 71 are adapted to the upper air inlet duct 11, and the third sealing plate 72 is adapted to the second mounting port 14. The medium efficiency filter 42 is installed in the second movable frame 73. When the third sealing plate 72 seals the second mounting port 14, the second movable frame 73 is located in the upper air inlet duct 11, and the second sealing plate 71 is in contact with the inner wall of the upper air inlet duct 11. A sealing cover 75 is provided on the laboratory box 1 , and the sealing cover 75 covers the hinge shafts of the second sealing plate 71 , the third sealing plate 72 and the second movable frame 73 .

[0055] During normal use, the third sealing plate 72 seals the second installation port 14. When the medium efficiency filter 42 needs to be replaced, the third sealing plate 72 is flipped out of the second installation port 14, and the second movable frame 73 is flipped to the second installation port 14. The second sealing plate 71 blocks the upper air inlet 11 to prevent the influx of external air. The staff can directly take out the medium efficiency filter 42 from the second movable frame 73 and replace it with a new medium efficiency filter 42. The reason for flipping the second movable frame 73 to 90° and then taking out the medium efficiency filter 42 is that the filter cloth of the medium efficiency filter 42 is relatively long, and the width of the second movable frame 73 is relatively small. Therefore, if the form of direct pulling is adopted, the caliber of the second installation port 14 will be appropriately reduced, and then there will be a situation where the filter cloth of the medium efficiency filter 42 is stuck in the second installation port 14 during the extraction process, and it is not convenient to insert the new medium efficiency filter 42. Therefore, it is designed to be flip-type to avoid friction and stagnation between the filter cloth and the edge of the second installation port 14, which is more convenient for the installation and removal of the medium efficiency filter 42.

[0056] like Figure 8The second closing component 6 includes a fourth sealing plate 61, a first swing rod 62 and a second swing rod 63 are hinged at one end of the top wall of the fourth sealing plate 61, and the other ends of the first swing rod 62 and the second swing rod 63 are hinged at the middle of the top inside the third installation opening 15. The first swing rod 62 and the second swing rod 63 are staggered up and down and parallel to each other. The hinge point between the first swing rod 62 and the fourth sealing plate 61 is farther away from the center of the laboratory box 1 than the hinge point between the second swing rod 63 and the fourth sealing plate 61. The inner top wall of the third installation opening 15 is hinged with a third swing rod 64, and the third swing rod 64 is hinged at one side of the third installation opening 15. The third swing rod 64 is hinged at the center of the top wall of the fourth sealing plate 61. When the fourth sealing plate 61 is in the open state, the fourth sealing plate 61 is arranged close to the inner side wall of the upper air inlet 11 / lower air inlet.

[0057] When taking out the integrated air quality control device 43 and the integrated terminal odor control device 44, the fourth sealing plate 61 can be pulled, and with the cooperation of the first swing arm 62, the second swing arm 63 and the third swing arm 64, the fourth sealing plate 61 flips over and closes the third mounting port 15, and the hinge points of the first swing arm 62, the second swing arm 63 and the third swing arm 64 are all arranged on the inner side of the third mounting port 15 to avoid external air leakage points, and during normal operation, the fourth sealing plate 61 is completely received in the upper air inlet duct 11 without occupying external space.

[0058] like Fig.11 The transport assembly 9 includes a first servo drive unit 91, which includes two X-direction lead screws, which are arranged near the side wall of the laboratory box 1, and are both rotatably connected to the laboratory box 1. The two X-direction lead screws are driven by a motor, and the two X-direction lead screws are commonly threadedly connected to a moving seat 93, and the moving seat 93 is equipped with a second servo drive unit 92. The second servo drive unit 92 includes a Y-direction lead screw, which is rotatably connected to the moving seat 93, and the Y-direction lead screw is driven by a motor. The Y-direction lead screw is threadedly connected to a first lifting cylinder, and the first lifting cylinder is slidably connected to the bottom of the moving seat 93. The first electric cylinder is equipped with an electric clamp 95, which is a finger electric cylinder.

[0059] The first servo drive unit 91 and the second servo drive unit 92 cooperate to drive the first lifting cylinder 94 and the electric clamp 95 to move to the top of the high-efficiency filter 32 that needs to be replaced, and then the first lifting cylinder 94 drives the electric clamp 95 to grab the high-efficiency filter 32. Then the first servo drive unit 91, the second servo drive unit 92, and the first lifting cylinder 94 cooperate to drive the high-efficiency filter 32 to move to the storage assembly 8 for storage for subsequent unified retrieval, and then grab the new high-efficiency filter 32 at the storage assembly 8 and install it on the mounting frame 31.

[0060] like Fig.11, the storage component 8 is disposed adjacent to the side wall of the laboratory box body 1, and the storage component 8 is located at one end of the X-direction screw rod. The storage component 8 includes a third servo drive unit 81, and the third servo drive unit 81 also includes a screw rod and a motor. The screw rod of the third servo drive unit 81 is arranged along the Y direction. The third servo drive unit 81 is connected with a second lifting cylinder 82. Limit plates 83 are arranged on both sides of the third servo drive unit 81. A transverse cylinder 84 is arranged on the side of the two limit plates 83 facing away from each other. The transverse cylinder 84 is connected with a support plate 85. The support plate 85 can pass through the limit plate 83. The new high-efficiency filters 32 are stacked between the two limit plates 83 and supported on the two support plates 85.

[0061] After the old high-efficiency filter 32 moves close to the limit plate 83, the third servo drive unit 81 drives the second lifting cylinder 82 to extend out from between the two limit plates 83. Then the old high-efficiency filter 32 is placed on the second lifting cylinder 82. The third servo drive unit 81 drives the second lifting cylinder 82 to move back between the two limit plates 83. Then the transverse cylinder 84 is activated to move the two support plates 85 away from each other. At this time, the new high-efficiency filters 32 fall and stack with the old high-efficiency filter 32. Then the second lifting cylinder 82 drives the stacked high-efficiency filters 32 to lift synchronously. The transverse cylinder 84 drives the support plate 85 to reset again. The second lifting cylinder 82 falls and resets, so that the high-efficiency filters 32 are stacked and supported on the support plate 85 again. Then the electric gripper 95 grabs the high-efficiency filter 32 at the top and installs it on the installation frame 31.

[0062] The implementation principle of the embodiment of the present application is as follows: The primary filter 41, the medium filter 42, the air quality comprehensive treatment device 43 and the end odor comprehensive treatment device 44 can all be directly removed from the outer side wall of the laboratory box body 1, and the first installation opening 13, the second installation opening 14 and the third installation opening 15 are closed in time through the first closing component 5, the flipping closing component 7 and the second closing component 6, shortening the contact time between the upper air inlet duct 11 and the lower air outlet duct 12 and the external air, reducing the intrusion amount of unfiltered air, ensuring the continuous cleanliness and stability of the experimental environment, and moreover, there is no need to disassemble the upper air inlet duct 11 and the lower air inlet duct, which is beneficial to improving the replacement efficiency.

[0063] When replacing the high-efficiency filter 32, through the cooperation of the storage component 8 and the transportation component 9, the high-efficiency filter 32 is automatically replaced, and there is no need for personnel to enter the laboratory to disassemble the top plate 33 structure, which is beneficial to improving the replacement efficiency and eliminating the risk of human beings carrying pollutants (such as dust and microorganisms) into the laboratory box body 1.

[0064] Moreover, when the primary filter 41, the medium filter 42, the comprehensive air quality control device 43 and the terminal odor comprehensive control device 44 on one side are being replaced, the air circulation unit 2 on that side needs to stop working, but the air circulation unit 2 on the other side can continue to operate, avoiding complete shutdown of the system, ensuring continuous operation of the system, and ensuring the long-term stability of the experimental environment.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-precision laboratory air quality control system, characterized by: The invention comprises a laboratory box (1), wherein both sides of the laboratory box (1) are separated by an upper air inlet duct (11) and a lower air outlet duct (12), the upper air inlet duct (11) and the lower air outlet duct (12) on the same side are commonly connected to an air circulation unit (2), the top of the laboratory box (1) is connected to a mounting frame (31), the mounting frame (31) supports a plurality of high-efficiency filters (32) and a plurality of top plates (33), the mounting frame (31), the high-efficiency filters (32), the top plates (33) and the laboratory box (1) jointly separate an air supply space (111), the upper air inlet duct (11) is connected to the air supply space (111), a primary filter (41), a medium-efficiency filter (42) and an air quality comprehensive treatment device (43) are sequentially arranged in the upper air inlet duct (11) along its air supply direction, and a terminal odor comprehensive treatment device (44) is installed in the lower air outlet duct (12); The outer wall of the laboratory box (1) is provided with a first installation opening (13), a second installation opening (14) and two third installation openings (15); the primary filter (41) is inserted into the upper air inlet duct (11) through the first installation opening (13); the medium-efficiency filter (42) is installed in the upper air inlet duct (11) through the second installation opening (14); and the air quality comprehensive treatment device (43) and the terminal odor comprehensive treatment device (44) are each installed on the laboratory box (1) through one of the third installation openings (15); The laboratory box (1) is provided with a first sealing component (5) for sealing the first installation opening (13) and a second sealing component (6) for sealing the third installation opening (15). The laboratory box (1) is provided with a flip sealing component (7). The flip sealing component (7) is used to simultaneously control the opening of the second installation opening (14), flip the medium efficiency filter (42) so that its windward surface faces the second installation opening (14), and close the upper air inlet duct (11). A storage component (8) and a transportation component (9) are installed in the air supply space (111). The storage component (8) is used to store the new high efficiency filter (32). The transportation component (9) is used to grab the old high efficiency filter (32) to the storage component (8), and install the new high efficiency filter (32) on the installation frame (31).

2. The high-precision laboratory air quality control system according to claim 1 is characterized in that: The first sealing component (5) comprises a first sealing plate (51) and a first movable frame (52), wherein the first sealing plate (51) is slidably inserted into the side wall of the laboratory box (1), and the inner wall of the first installation opening (13) is provided with a first slot (131). A spring (54) is also installed in the side wall of the laboratory box (1), and the spring (54) is connected to the first sealing plate (51). The primary filter (41) is installed in the first movable frame (52), and one side of the first movable frame (52) is adapted to the first installation opening (13). When the first movable frame (52) is located in the upper air inlet duct (11), the first sealing plate (51) abuts against the first movable frame (52), and when the first movable frame (52) is pulled out of the laboratory box (1), the first sealing plate (51) is inserted into the first slot (131).

3. The high-precision laboratory air quality control system according to claim 2 is characterized in that: The first sealing plate (51) is rotatably connected to one end of the first slot (131) and is provided with a guide wheel (53). When the first movable frame (52) is pulled out of the laboratory box (1), the guide wheel (53) is inserted into the first slot (131). A strip hole (110) is provided on the side wall of the laboratory box (1). The first sealing plate (51) is connected to a push-pull column (55). The push-pull column (55) extends out of the strip hole (110). The push-pull column (55) is hinged with a buckle ring (56). A fixed column (57) is installed on the side wall of the first sealing plate (51). When the first movable frame (52) is located in the upper air inlet duct (11), the guide wheel (53) abuts against the first movable frame (52), and the buckle ring (56) can be buckled on the fixed column (57).

4. The high-precision laboratory air quality control system according to claim 1 is characterized in that: The flip sealing assembly (7) comprises a second sealing plate (71), a third sealing plate (72) and a second movable frame (73); the second sealing plate (71), the third sealing plate (72) and the second movable frame (73) are fixed to each other and hinged together on one side of the second mounting opening (14); the second movable frame (73) is located between the second sealing plate (71) and the third sealing plate (72); the second sealing plate (71) and the third sealing plate (72) are perpendicular to the second movable frame (73); the second sealing plate (71), the third sealing plate (72) and the second movable frame (73) are both provided with sealing gaskets (74) at one end away from the hinge axis, the second movable frame (73) and the second sealing plate (71) are adapted to the upper air inlet duct (11), the third sealing plate (72) is adapted to the second mounting port (14), the medium efficiency filter (42) is installed in the second movable frame (73), and when the third sealing plate (72) seals the second mounting port (14), the second movable frame (73) is located in the upper air inlet duct (11).

5. The high-precision laboratory air quality control system according to claim 4 is characterized in that: The laboratory box (1) is provided with a sealing cover (75), and the sealing cover (75) covers the hinge shaft of the second sealing plate (71), the third sealing plate (72) and the second movable frame (73).

6. The high-precision laboratory air quality control system according to claim 1 is characterized in that: The second sealing component (6) comprises a fourth sealing plate (61), the horizontal wall of the fourth sealing plate (61) is hinged with a first swing arm (62) and a second swing arm (63), the other ends of the first swing arm (62) and the second swing arm (63) are hinged in the third mounting opening (15), the first swing arm (62) and the second swing arm (63) are staggered up and down and parallel to each other, a third swing arm (64) is hinged on one side of the third mounting opening (15), the third swing arm (64) is hinged with the horizontal wall of the fourth sealing plate (61), and when the fourth sealing plate (61) is in an open state, the fourth sealing plate (61) is located in the air duct.

7. The high-precision laboratory air quality control system according to claim 1 is characterized in that: The transport component (9) comprises a first servo drive unit (91), the first servo drive unit (91) is connected to a moving seat (93), the moving seat (93) is equipped with a second servo drive unit (92), the moving seat (93) is equipped with a first lifting electric cylinder (94), the first lifting electric cylinder (94), the first lifting electric cylinder (94) is equipped with an electric clamp (95), the first servo drive unit (91) is used to drive the moving seat (93) to move along the X-axis direction, and the second servo drive unit (92) is used to drive the first lifting electric cylinder (94) to move along the Y-axis direction.

8. The high-precision laboratory air quality control system according to claim 1 is characterized in that: The storage assembly (8) is arranged adjacent to the side wall of the laboratory box (1), and the storage assembly (8) comprises a third servo drive unit (81), the third servo drive unit (81) is connected to a second lifting cylinder (82), and limiting plates (83) are arranged on both sides of the third servo drive unit (81), and a transverse cylinder (84) is arranged on the opposite sides of the two limiting plates (83), and the transverse cylinder (84) is connected to a support plate (85), and the support plate (85) can pass through the limiting plate (83), and the new high-efficiency filter (32) is stacked and arranged between the two limiting plates (83) and supported on the two support plates (85).

9. The high-precision laboratory air quality control system according to claim 1, characterized in that: A volatile organic compound transmitter (45) is installed on the top of the laboratory box (1); the upper air inlet duct (11) is connected to the air supply space (111) via an air supply pipe (112); an ozone transmitter (46) is installed on the air supply pipe (112); a VOC / TVOC transmitter (47), an online dust particle counter (48) and an online floating bacteria sampler (49) are hung inside the laboratory box (1); a first differential pressure gauge (410) and a second differential pressure gauge (411) are also installed on the laboratory box (1); the first differential pressure gauge (410) is used to detect the air pressure difference on both sides of the primary filter (41); and the second differential pressure gauge (411) is used to detect the air pressure difference on both sides of the medium efficiency filter (42).

10. The high-precision laboratory air quality control system according to claim 9, characterized in that: The top of the laboratory box (1) is provided with a first inspection port (16) for replacing the volatile organic compound transmitter (45), a second inspection port (17) for replacing the ozone transmitter (46), and a replacement port (19) for removing an old high-efficiency filter (32).

Images