A sample library ventilation system based on natural aerodynamic force

Abstract

The invention discloses a sample library ventilation system based on natural air power, which belongs to the field of equipment. The sample library ventilation system based on natural air power includes: a natural wind collection device, an air guide device, an indoor air delivery device, and a plurality of exhaust devices, etc. The beneficial effects are: a wind direction sensing component monitors the outdoor wind direction in real time, and the wind canvas always maintains the maximum windward surface through the wind direction sensing component and the control motion component, so as to achieve effective collection of air and effective utilization of air kinetic energy, and effectively introduce the external airflow into the diversion well. The setting of the first wind cutting component and the second wind cutting component can artificially turn the airflow to the diversion port, and effectively guide the air flow into each room, thereby improving the air delivery efficiency to the room without using a large number of various gas acceleration devices to reduce costs.

Description

Technical Field

[0001] The present invention relates to the field of indoor ventilation, and particularly to a ventilation system for a sample library based on natural air power. Background Art

[0002] A sample library is a professional storage building established specifically according to the special storage requirements of different samples such as soil and plants, and has relatively strict environmental requirements. Usually, according to the sample storage requirements, most sample libraries are relatively independent enclosed or semi-enclosed buildings, and the indoor air circulation is not smooth. Under the long-term closed or semi-closed state, the air gradually becomes dirty, affecting the sample storage quality and endangering the health of management personnel. To solve the problem of air circulation in the sample library, usually, ventilation devices such as air conditioners are installed to promote indoor air replacement, which generally has problems such as high energy consumption and high daily management and operation costs. Therefore, it is necessary to develop an indoor ventilation system with low cost, low energy consumption, and low operation and management costs for enclosed or semi-enclosed sample libraries to accelerate the air replacement in the sample library. Summary of the Invention

[0003] The purpose of the present invention is to overcome the problems in the prior art, and provide a ventilation system for a sample library based on natural air power that can improve the air delivery efficiency into the room without using a large number of various gas acceleration devices to reduce costs.

[0004] The present invention provides a ventilation system for a sample library based on natural air power, including: a natural wind collection device, which includes a wind direction sensing component, a sail cloth, and a control movement component. The sail cloth is connected to the control movement component, and the control movement component is connected to the wind direction sensing component. The wind direction sensing component is used to detect and determine the wind direction and transmit the wind direction information to the control movement component. The control movement component is used to control the sail cloth to rotate to the windward angle, and the sail cloth is used to collect air flow and guide the air flow movement;

[0005] An air diversion device, which is vertically arranged in the building, and the sail cloth is used to collect air flow and guide the air flow into the air diversion device;

[0006] An indoor air delivery device, which is horizontally arranged in the building, and the indoor air delivery device is connected to the air diversion device. The air diversion device is used to guide the air flow into the indoor air delivery device, and the indoor air delivery device is used to guide the air flow into each room in the building;

[0007] A plurality of exhaust devices, which are arranged in the room, and the exhaust devices are used to discharge the air in the room to the outside.

[0008] Further, the air guide device includes: a guide shaft and a plurality of first wind cutting components, the guide shaft is arranged inside the building wall, an air inlet is opened at one end of the guide shaft, the wind canvas is used to collect the airflow and guide the airflow to the air inlet so that the airflow moves into the guide shaft, and a plurality of diversion ports are also opened on the side wall of the guide shaft, the first wind cutting component is arranged inside the guide shaft, and one diversion port corresponds to one first wind cutting component, and the first wind cutting component is used to guide part of the airflow entering the guide shaft into the corresponding diversion port;

[0009] The indoor air delivery device includes: multiple gas pipelines and multiple second air cutting components. A gas pipeline is connected to the diversion port, and multiple second cutting components are arranged in a gas pipeline. The side wall of each gas pipeline is provided with multiple air outlets, and one air outlet corresponds to a second air cutting component. The second air cutting component is used to guide part of the airflow entering the gas pipeline into the corresponding air outlet, and the air outlet is used to guide the airflow into the room where it is located.

[0010] Furthermore, the wind direction sensing component includes: a wind vane, which is arranged outdoors and is used to determine the instantaneous wind direction; the control motion component includes: a rotation controller, a rotation component, a lifting controller and a lifting component, the rotation controller is connected to the wind vane, the rotation component is connected to the rotation controller, the lifting controller is connected to the rotation component, the lifting component is connected to the lifting controller, the rotation component and the lifting component are both connected to the sailcloth, the rotation controller is used to receive wind direction information determined by the wind vane, the rotation controller is also used to control the rotation component to drive the sailcloth to rotate to a windward angle according to the wind direction information, the rotation component is also used to send information to the lifting controller after it rotates into place, and the lifting controller is used to control the lifting component to drive the sailcloth to lift and lower to change the height.

[0011] Furthermore, the lifting assembly includes: multiple spiral lifting rods, sail traction parts and a motor, the spiral lifting rods are connected to multiple sail traction parts, the sail traction parts on the multiple spiral lifting rods are commonly connected to the sail cloth, the motor is connected to the spiral lifting rods, and the motor is used to control the spiral lifting rods to perform lifting and lowering movements.

[0012] Furthermore, the first wind cutting component includes: a first deflection plate and a first wind cutting plate, the first wind cutting plate is connected to the inner wall of the diversion well, and the first wind cutting plate is located at the diversion port corresponding to the first wind cutting component, the first deflection plate is connected to the inner wall of the diversion well, the first deflection plate is an arc-shaped plate body, the first deflection plate is used to guide part of the airflow in the diversion well to the diversion port, and the first wind cutting plate is used to guide the deflected airflow into the diversion port.

[0013] Further, the diversion well is a vertical pipeline installed inside the building, the natural wind collection device is installed on the top of the building, each shunt port connects the floor spaces of the 1st, 2nd, 3rd... nth floors to the diversion well from top to bottom, each first wind-cutting component is arranged in sequence correspondingly in the vertical direction, the sum of the horizontal widths of the first turning plate and the first wind-cutting plate corresponding to the nth floor is a, and the sum of the horizontal widths of the first turning plate and the first wind-cutting plate corresponding to the bth floor is a / (n - b + 1).

[0014] Further, the second wind-cutting component includes: a second turning plate and a second wind-cutting plate. The second wind-cutting plate is connected to the inner wall of the air delivery pipeline, and the second wind-cutting plate is located at the air outlet corresponding to its second wind-cutting component. The second turning plate is connected to the inner wall of the air delivery pipeline. The second turning plate is an arc-shaped plate body. The second turning plate is used to guide part of the air flow in the air delivery pipeline to turn to the air outlet, and the second wind-cutting plate is used to guide the turned air flow into the air outlet.

[0015] Further, the air delivery pipeline is a horizontal pipeline installed inside the building. Each air outlet connects the 1st, 2nd, 3rd... nth rooms to the air delivery pipeline from near to far according to the distance from the corresponding shunt port. The sum of the vertical widths of the second turning plate and the second wind-cutting plate corresponding to the nth room is a, and the sum of the vertical widths of the second turning plate and the second wind-cutting plate corresponding to the bth room is a / (n - b + 1).

[0016] Further, the first turning plate and the first wind-cutting plate corresponding to the nth floor are integrally connected to each other, and the second turning plate and the second wind-cutting plate corresponding to the nth room are integrally connected to each other.

[0017] Further, the exhaust device includes: a heat-insulating isolation door, a filter screen, an exhaust fan, an exhaust port, and an exhaust pipeline. The exhaust port is arranged at the connection between the exhaust pipeline and the room. The filter screen is arranged inside the exhaust pipeline. The exhaust fan is arranged inside the exhaust port. The heat-insulating isolation door is movably connected to the exhaust port. The exhaust pipeline is connected to the outside of the building.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The wind direction sensing component monitors the outdoor wind direction in real time. Through the wind direction sensing component and the control motion component, the sailcloth always maintains the maximum windward surface, realizing the effective collection of air and the effective utilization of air kinetic energy, effectively introducing the external air flow into the diversion well. The setting of the first wind-cutting component and the second wind-cutting component can artificially turn the air flow towards the shunt port, effectively transmitting the air flow into each room, thereby improving the air delivery efficiency into the room on the premise of not using a large number of various gas acceleration devices to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the natural wind collection device in the present invention;

[0021] Figure 3 It is a schematic structural diagram of the air guide device in the present invention;

[0022] Figure 4 It is a structural schematic diagram of the indoor air conveying device in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the exhaust device in the present invention.

[0024] Description of reference numerals:

[0025] 1. Natural wind collecting device; 2. Air guide device; 3. Indoor air conveying device; 4. Exhaust device; 101. Weather vane; 102. Rotation controller; 103. Rotation assembly; 104. Lifting controller; 105. Lifting assembly; 106. Wind sail cloth; 10502. Spiral lifting rod; 10503. Wind sail traction part; 202. Diversion shaft; 203. First steering plate; 204. First wind cutting plate; 205. Diversion port; 301. Gas transmission pipeline; 302. Second steering plate; 303. Second wind cutting plate; 304. Air outlet; 401. Thermal insulation door; 402. Filter; 403. Exhaust fan; 404. Exhaust port. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific implementation. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] A sample library ventilation system based on natural aerodynamic force provided by the present invention includes: a natural wind collection device 1, an air diversion device 2, an indoor air conveying device 3, and a plurality of exhaust devices 4. The natural wind collection device 1 includes a wind direction sensing component, a sail cloth 106, and a control movement component. The air diversion device 2 includes: a diversion well 202 and a plurality of first wind cutting components. The natural wind collection device 1 includes a wind direction sensing component, a sail cloth 106, and a control movement component. The sail cloth 106 is connected to the control movement component, and the control movement component is connected to the wind direction sensing component. The wind direction sensing component is used to detect and determine the wind direction and transmit the wind direction information to the control movement component. The control movement component is used to control the sail cloth 106 to rotate to the windward angle. The sail cloth 106 is used to collect the air flow and guide the air flow to move. The air diversion device 2 is vertically arranged in the building. The sail cloth 106 is used to collect the air flow and guide the air flow into the air diversion device 2. The indoor air conveying device 3 is horizontally arranged in the building. The indoor air conveying device 3 is communicated with the air diversion device 2. The air diversion device 2 is used to guide the air flow into the indoor air conveying device 3. The indoor air conveying device 3 is used to guide the air flow into each room in the building. The exhaust device 4 is arranged in the room. The exhaust device 4 is used to discharge the air in the room to the outside.

[0028] Specifically, please refer to Figures 1-5 The wind direction sensing component monitors the outdoor wind direction in real time. Through the wind direction sensing component and the control movement component, the sail cloth 106 always maintains the maximum windward surface, realizing the effective collection of air, the effective utilization of air kinetic energy, and effectively introducing the external air flow into the air diversion device 2. The air diversion device 2 cooperates with the indoor air conveying device 3 to effectively transmit the air flow into each room and improve the air conveying efficiency into the room.

[0029] In one embodiment, please refer to Figures 3-4, the air diversion device 2 includes: a diversion well 202 and a plurality of first wind-cutting components. The diversion well 202 is arranged inside the building wall. An air inlet is provided at one end of the diversion well 202. The sailcloth 106 is used to collect air flow and guide the air flow to the air inlet so that the air flow moves into the diversion well 202. A plurality of diversion openings 205 are also provided on the side wall of the diversion well 202. The first wind-cutting components are arranged inside the diversion well 202, and one diversion opening 205 corresponds to one first wind-cutting component. The first wind-cutting component is used to guide part of the air flow entering the diversion well 202 into the corresponding diversion opening 205. The indoor air delivery device 3 includes: a plurality of air delivery pipes 301 and a plurality of second wind-cutting components. One air delivery pipe 301 is connected to the diversion opening 205. A plurality of second cutting components are arranged inside one air delivery pipe 301. A plurality of air outlet openings 304 are provided on the side wall of each air delivery pipe 301, and one air outlet opening 304 corresponds to one second wind-cutting component. The second wind-cutting component is used to guide part of the air flow entering the air delivery pipe 301 into the corresponding air outlet opening 304. The air outlet opening 304 is used to introduce the air flow into the room where it is located.

[0030] In one embodiment, please refer to Figures 1-2 , the wind direction sensing component includes: a wind vane 101. The wind vane 101 is arranged outdoors and is used to determine the instantaneous wind direction. The control movement component includes: a rotation controller 102, a rotation component 103, a lifting controller 104, and a lifting component 105. The rotation controller 102 is connected to the wind vane 101. The rotation component 103 is connected to the rotation controller 102. The lifting controller 104 is connected to the rotation component 103. The lifting component 105 is connected to the lifting controller 104. Both the rotation component 103 and the lifting component 105 are connected to the sailcloth 106. The rotation controller 102 is used to receive the wind direction information determined by the wind vane 101. The rotation controller 102 is also used to control the rotation component 103 to drive the sailcloth 106 to rotate to the windward angle according to the wind direction information. The rotation component 103 is also used to send information to the lifting controller 104 after its rotation is in place. The lifting controller 104 is used to control the lifting component 105 to drive the sailcloth 106 to lift and change the height.

[0031] In one embodiment, please refer to Figure 2 , the lifting component 105 is arranged on the rotation component 103. The lifting component 105 includes: a plurality of screw lifting rods 10502, a sail traction member 10503, and a motor 10501. A plurality of sail traction members 10503 are connected to the screw lifting rods 10502. The sail traction members 10503 on the plurality of screw lifting rods 10502 are jointly connected to the sailcloth 106. The motor 10501 is connected to the screw lifting rods 10502. The motor 10501 is used to control the screw lifting rods 10502 to perform lifting movement.

[0032] In this embodiment, the sailcloth 106 is designed as a smooth arc, which is more conducive to air flow and turning, reducing the loss of wind power during the transition from horizontal wind direction to vertical wind direction. The design of the sailcloth 106 from wide to narrow towards the air inlet accelerates the wind, which is more conducive to extending the transmission distance of wind under natural power and ensuring the air transmission efficiency from the outside to the inside of the room.

[0033] In this embodiment, when ventilation is required indoors, the switch is turned on to connect the power supply. The wind vane 101 determines the current wind direction, and the information is transmitted to the rotation controller 102 through the connecting wire. The rotation controller 102 controls the rotation of the rotation assembly 103 through the connecting wire to make it face the main wind direction. After the turning is in place, the rotation assembly 103 stops rotating. The rotation assembly 103 transmits information to the lifting controller 104 through the connecting wire, and the lifting controller 104 then activates the lifting assembly 105 to control the lifting movement of the screw lifting rod 10502 by controlling the start and stop of the motor 10501.

[0034] In one embodiment, please refer to Figure 3 , the first wind-cutting assembly includes: a first turning plate 203 and a first wind-cutting plate 204. The first wind-cutting plate 204 is connected to the inner wall of the diversion well 202, and the first wind-cutting plate 204 is located at the corresponding diversion opening 205 of the first wind-cutting assembly where it is located. The first turning plate 203 is connected to the inner wall of the diversion well 202. The first turning plate 203 is an arc-shaped plate body. The first turning plate 203 is used to guide part of the air flow in the diversion well 202 to turn to the diversion opening 205, and the first wind-cutting plate 204 is used to guide the turned air flow into the diversion opening 205.

[0035] In one embodiment, please refer to Figure 3 , the diversion well 202 is a vertical pipe provided in the building. The natural wind collection device 1 is provided on the top of the building. Each diversion opening 205 connects the floor spaces of the 1st, 2nd, 3rd... nth floors to the diversion well 202 from top to bottom. Each first wind-cutting assembly is arranged in sequence corresponding to each other in the vertical direction. The sum of the horizontal widths of the first turning plate 203 and the first wind-cutting plate 204 corresponding to the nth floor is a, and the sum of the horizontal widths of the first turning plate 203 and the first wind-cutting plate 204 corresponding to the bth floor is a / (n - b + 1).

[0036] In one embodiment, please refer to Figure 4, the second air-cutting component includes: a second turning plate 302 and a second air-cutting plate 303. The second air-cutting plate 303 is connected to the inner wall of the air delivery pipeline 301, and the second air-cutting plate 303 is located at the air outlet 304 corresponding to the second air-cutting component where it is located. The second turning plate 302 is connected to the inner wall of the air delivery pipeline 301. The second turning plate 302 is an arc-shaped plate body. The second turning plate 302 is used to guide part of the air flow in the air delivery pipeline 301 to turn to the air outlet 304, and the second air-cutting plate 303 is used to guide the turned air flow into the air outlet 304.

[0037] In one embodiment, please refer to Figure 4 , the air delivery pipeline 301 is a horizontal pipeline provided in the building. Each air outlet 304 connects the 1st, 2nd, 3rd... nth rooms to the air delivery pipeline 301 in order of increasing distance from the corresponding shunt port 205. The sum of the vertical widths of the second turning plate 302 and the second air-cutting plate 303 corresponding to the nth room is a, and the sum of the vertical widths of the second turning plate 302 and the second air-cutting plate 303 corresponding to the bth room is a / (n - b + 1).

[0038] The first air-cutting plate 204 and the second air-cutting plate 303 in this embodiment can reasonably divide the air flow moving towards the shunt port 205 and the air outlet 304, and can guide the diffused air flow into a straight-blowing air flow with the maximum speed towards the shunt port and the air outlet, thereby ensuring the air transfer efficiency to each space.

[0039] In this embodiment, please refer to Figure 4 , the widths of the first turning plate 203 and the first air-cutting plate 204, and the second turning plate 302 and the second air-cutting plate 303 are set progressively in a regular pattern, dividing the collected natural wind relatively evenly, so that each independent space enjoys a relatively equal ventilation effect.

[0040] In one embodiment, the first turning plate 203 and the first air-cutting plate 204 corresponding to the nth floor are integrally connected to each other, and the second turning plate 302 and the second air-cutting plate 303 corresponding to the nth room are integrally connected to each other.

[0041] In one embodiment, please refer to Figure 5 , the exhaust device 4 includes: a heat-insulating isolation door 401, a filter screen 402, an exhaust fan 403, an exhaust port 404 and an exhaust pipeline. The exhaust port is provided at the connection between the exhaust pipeline and the room. The filter screen 402 is provided inside the exhaust pipeline. The exhaust fan 403 is provided in the exhaust port 404. The heat-insulating isolation door 401 is movably connected to the exhaust port 404, and the exhaust pipeline is connected to the outside of the building. When necessary, the exhaust device can be started to improve the indoor air replacement efficiency. The exhaust device is provided with a heat-insulating isolation board, which can be closed when not in use to improve the aesthetics and reduce the temperature exchange between indoors and outdoors.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample library ventilation system based on natural aerodynamic force, characterized in that Comprising: A natural wind collection device (1), the natural wind collection device (1) includes a wind direction sensing component, a sail cloth (106), and a control motion component. The sail cloth (106) is connected to the control motion component, and the control motion component is connected to the wind direction sensing component. The wind direction sensing component is used to detect and determine the wind direction and transmit the wind direction information to the control motion component. The control motion component is used to control the sail cloth (106) to rotate to the windward angle, and the sail cloth (106) is used to collect air flow and guide the air flow to move; An air diversion device (2), the air diversion device (2) is vertically arranged inside the building. The sail cloth (106) is used to collect air flow and guide the air flow into the air diversion device (2); An indoor air conveying device (3), the indoor air conveying device (3) is horizontally arranged inside the building. The indoor air conveying device (3) is communicated with the air diversion device (2). The air diversion device (2) is used to guide the air flow into the indoor air conveying device (3), and the indoor air conveying device (3) is used to guide the air flow into each room in the building; A plurality of exhaust devices (4), the exhaust devices (4) are arranged in the rooms, and the exhaust devices (4) are used to discharge the air in the rooms to the outside; The air diversion device (2) includes: a diversion well (202) and a plurality of first wind-cutting components. The diversion well (202) is arranged inside the building wall. One end of the diversion well (202) is provided with an air inlet. The sail cloth (106) is used to collect air flow and guide the air flow to the air inlet to make the air flow move into the diversion well (202). A plurality of diversion openings (205) are also provided on the side wall of the diversion well (202). The first wind-cutting components are arranged inside the diversion well (202), and one diversion opening (205) corresponds to one first wind-cutting component. The first wind-cutting component is used to guide part of the air flow entering the diversion well (202) into the corresponding diversion opening (205); The indoor air conveying device (3) includes: a plurality of air conveying pipes (301) and a plurality of second wind-cutting components. One of the air conveying pipes (301) is connected to the diversion opening (205). A plurality of second wind-cutting components are arranged inside one air conveying pipe (301). A plurality of air outlet openings (304) are provided on the side wall of each air conveying pipe (301), and one air outlet opening (304) corresponds to one of the second wind-cutting components. The second wind-cutting component is used to guide part of the air flow entering the air conveying pipe (301) into the corresponding air outlet opening (304), and the air outlet opening (304) is used to introduce the air flow into the room where it is located; The wind direction sensing component includes: a wind vane (101) which is arranged outdoors and is used to determine the instantaneous wind direction; the control motion component includes: a rotation controller (102), a rotation component (103), a lifting controller (104) and a lifting component (105). The rotation controller (102) is connected to the wind vane (101), the rotation component (103) is connected to the rotation controller (102), the lifting controller (104) is connected to the rotation component (103), the lifting component (105) is connected to the lifting controller (104), both the rotation component (103) and the lifting component (105) are connected to the sail cloth (106). The rotation controller (102) is used to receive the wind direction information determined by the wind vane (101), and the rotation controller (102) is further used to control the rotation component (103) to drive the sail cloth (106) to rotate to the windward angle according to the wind direction information. The rotation component (103) is further used to send information to the lifting controller (104) after its rotation is in place, and the lifting controller (104) is used to control the lifting component (105) to drive the sail cloth (106) to lift and change the height. The lifting component (105) includes: a plurality of screw lifting rods (10502), sail traction members (10503) and a motor (10501). A plurality of sail traction members (10503) are connected to the screw lifting rods (10502), and the sail traction members (10503) on the plurality of screw lifting rods (10502) are jointly connected to the sail cloth (106). The motor (10501) is connected to the screw lifting rods (10502), and the motor (10501) is used to control the screw lifting rods (10502) to perform lifting motion.

2. The air exchange system for a sample library based on natural aerodynamic force as claimed in claim 1, wherein The first wind cutting component includes: a first steering plate (203) and a first wind cutting plate (204). The first wind cutting plate (204) is connected to the inner wall of the diversion well (202), and the first wind cutting plate (204) is located at the corresponding diversion opening (205) of the first wind cutting component where it is located. The first steering plate (203) is connected to the inner wall of the diversion well (202), the first steering plate (203) is an arc-shaped plate body, the first steering plate (203) is used to guide a part of the airflow in the diversion well (202) to turn to the diversion opening (205), and the first wind cutting plate (204) is used to guide the turned airflow into the diversion opening (205).

3. The air exchange system for the sample library based on natural aerodynamic force according to claim 2, characterized in that, The diversion well (202) is a vertical pipeline installed in the building. The natural wind collection device (1) is installed on the top of the building. Each of the diversion openings (205) connects the floor spaces of the 1st, 2nd, 3rd,..., nth floors to the diversion well (202) from top to bottom. Each of the first wind-cutting components is arranged in sequence correspondingly in the vertical direction. The sum of the horizontal widths of the first turning plate (203) and the first wind-cutting plate (204) corresponding to the nth floor is a, and the sum of the horizontal widths of the first turning plate (203) and the first wind-cutting plate (204) corresponding to the bth floor is a / (n - b + 1).

4. The air change system for the sample library based on natural aerodynamic force according to claim 3, wherein The second wind-cutting component includes: a second turning plate (302) and a second wind-cutting plate (303). The second wind-cutting plate (303) is connected to the inner wall of the air delivery pipeline (301), and the second wind-cutting plate (303) is located at the air outlet (304) corresponding to the second wind-cutting component where it is located. The second turning plate (302) is connected to the inner wall of the air delivery pipeline (301). The second turning plate (302) is an arc-shaped plate body. The second turning plate (302) is used to guide part of the air flow in the air delivery pipeline (301) to turn to the air outlet (304), and the second wind-cutting plate (303) is used to guide the turned air flow into the air outlet (304).

5. The air change system for the sample library based on natural aerodynamic force according to claim 4, wherein The air delivery pipeline (301) is a horizontal pipeline installed in the building. Each of the air outlets (304) connects the 1st, 2nd, 3rd,..., nth rooms to the air delivery pipeline (301) from near to far according to the distance from the corresponding diversion opening (205). The sum of the vertical widths of the second turning plate (302) and the second wind-cutting plate (303) corresponding to the nth room is a, and the sum of the vertical widths of the second turning plate (302) and the second wind-cutting plate (303) corresponding to the bth room is a / (n - b + 1).

6. The air exchange system for the sample library based on natural aerodynamic force according to claim 5, wherein, The first turning plate (203) and the first wind-cutting plate (204) corresponding to the nth floor are integrally connected to each other. The second turning plate (302) and the second wind-cutting plate (303) corresponding to the nth room are integrally connected to each other.

7. The air change system for the sample library based on natural aerodynamic force according to claim 6, wherein The exhaust device (4) includes: a heat-insulating isolation door (401), a filter screen (402), an exhaust fan (403), an exhaust port (404), and an exhaust pipeline. The exhaust port is located at the connection between the exhaust pipeline and the room. The filter screen (402) is installed inside the exhaust pipeline. The exhaust fan (403) is installed in the exhaust port (404). The heat-insulating isolation door (401) is movably connected to the exhaust port (404), and the exhaust pipeline is connected to the outside of the building.

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