Atmospheric ozone monitoring system and method

Abstract

The invention relates to the technical field of ozone monitoring, in particular to an atmospheric ozone monitoring system and method. Comprising a monitoring box and a box door hinged to the monitoring box, a monitoring box is arranged in the monitoring box, the side wall of the monitoring box is communicated with an exhaust pipe, an ozone sensor is embedded in the top wall of the interior of the monitoring box, and during dynamic monitoring, an airflow conveying mechanism for conveying air into the monitoring box is arranged outside the monitoring box; air is discharged from the exhaust pipe through the ozone sensor. The device not only can carry out dynamic monitoring, but also can carry out static monitoring, the monitoring comprehensiveness is improved, when air in the air bag is released, the partition plate is burst open through airflow, the exhaust pipe, the air conveying box and the air bag are communicated, negative pressure is formed in the exhaust pipe, air in the monitoring box is sucked, and the monitoring accuracy is improved. And residual air in the air delivery pipe enters the monitoring box and is pumped away, so that the influence of the residual air in the air delivery pipe on static monitoring is reduced, and the monitoring accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ozone monitoring, and in particular to an atmospheric ozone monitoring system and method. Background Art

[0002] In daily life, we often see the air is slightly light brown and has a pungent smell. This is commonly known as photochemical smog. Ozone is the main component of photochemical smog, which is formed by photochemical reactions of nitrogen oxides and volatile organic compounds in the atmosphere. The nitrogen oxides and volatile organic compounds in the atmosphere mainly come from motor vehicle exhaust and chemical production.

[0003] There are many existing technologies for ozone monitoring equipment, such as:

[0004] Chinese Patent Publication No. CN217766329U discloses an ozone monitoring device, which relates to the field of ozone monitoring technology, including an ozone detection body, a display screen is fixedly installed on the front of the ozone detection body, an air inlet pipe and an air outlet pipe are fixedly installed on the sides of the ozone detection body, an air collecting assembly is fixedly installed inside the ozone detection body, a motor is fixedly installed inside the ozone detection body, one end of the air inlet pipe and the air outlet pipe are fixedly connected to one end of the air collecting assembly; the utility model can drive a movable rod to move through a motor, so that the outside air is drawn into the air inlet pipe by a piston, and the air volume can be freely controlled so that the ozone sensor can detect it, and then the motor is controlled to drive the movable rod to reset, so that the air in the air collecting barrel is completely discharged again, so as to avoid a large amount of gas remaining inside the detection device for the next detection.

[0005] It can be seen that in the prior art, when monitoring ozone, a piston is used to draw in outside air from the air intake pipe, and then the ozone is detected through an ozone sensor. After the monitoring is completed, the piston moves in the opposite direction to discharge the drawn air. However, since a small amount of air will remain inside the air intake pipe, the remaining air will mix with the newly drawn air during the next monitoring, which will affect the accuracy of the monitoring. Moreover, this monitoring method is only static monitoring. When the external wind speed is high, the distribution of ozone concentration in the surrounding environment will change. At this time, the monitoring cannot reflect the changing trend and law of ozone concentration in real time, which makes the monitoring limited and reduces the accuracy of the monitoring. Summary of the invention

[0006] The object of the present invention is to provide an atmospheric ozone monitoring system and method to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention aims to provide an atmospheric ozone monitoring system, comprising a monitoring box and a box door hinged to the monitoring box, a monitoring box is arranged inside the monitoring box, an exhaust pipe is connected to the side wall of the monitoring box, and an ozone sensor is embedded in the top wall of the monitoring box. During dynamic monitoring, an air flow conveying mechanism for conveying air to the monitoring box is arranged outside the monitoring box, so that the air is discharged from the exhaust pipe through the ozone sensor, a piston plate is sleeved inside the monitoring box, and an air bag connected to the side wall of the monitoring box is arranged, so that the air in the monitoring box is pressed into the air bag for storage by applying pressure to the piston plate with the air flow;

[0008] During static monitoring, the piston plate moves downward to draw in external air, and the piston plate squeezes the ejection mechanism provided on the outside of the airbag. The ejection mechanism is used to release the air in the airbag, so that negative pressure is formed in the exhaust pipe to suck the air in the monitoring box.

[0009] As a further improvement of the present technical solution, the airflow conveying mechanism includes a power impeller located outside the side wall of the monitoring box and an air pipe passing through the side wall of the monitoring box. The power impeller is supported by a bracket fixed to the side wall of the monitoring box. One end of the air pipe is bent downward and connected to the monitoring box, and the other end is trumpet-shaped with an opening, presenting an outwardly expanding shape to allow external air to enter the air pipe.

[0010] As a further improvement of the present technical solution, the inside of the air pipe is provided with an air delivery impeller for delivering external air to the monitoring box, and a gear set is connected between the air delivery impeller and the power impeller. The gear set is located at one end of the opening of the air pipe, and the gear set is composed of two mutually meshing bevel gears.

[0011] As a further improvement of the technical solution, a flow limiting component is arranged at the connection between the gas pipe and the monitoring box, wherein the flow limiting component includes a plug body adapted to the inner wall of the gas pipe, the plug body is fixedly connected to the bottom of the vertical pole, the vertical pole is provided with a return spring which is against the monitoring box, and under normal conditions, the plug body is inserted into the gas pipe to discharge the air in the gas pipe, the vertical pole is embedded in the top inner wall of the monitoring box, and the bottom of the vertical pole is flush with the top inner wall of the monitoring box.

[0012] As a further improvement of the technical solution, the bottom of the piston plate is elastically connected to a sleeve that penetrates the bottom of the monitoring box, and the end of the piston plate that fits the monitoring box has a baffle, which is used to block the through hole at the connection between the exhaust pipe and the monitoring box, so that the amount of air entering the monitoring box is greater than the amount of air discharged, the inner diameter of the air delivery pipe is the same as the inner diameter of the through hole, and a first one-way valve is arranged inside the through hole, and the first one-way valve is used to allow the air in the monitoring box to be discharged from the exhaust pipe;

[0013] The bottom of the sleeve is fixedly connected with a rack that fits the side wall of the monitoring box, a gear is meshed with the rack, and the gear is coaxially connected with a motor fixed on the top of the monitoring box.

[0014] As a further improvement of the present technical solution, the bottom of the monitoring box is provided with an air inlet hole and an exhaust hole, and a second one-way valve is arranged in the air inlet hole and the exhaust hole, wherein the exhaust hole is connected with the airbag through a catheter, and the airbag has a plurality of small holes, and the second one-way valve in the air inlet hole is used for allowing the air in the monitoring box to enter the airbag for storage, and the second one-way valve in the exhaust hole is used for allowing external air to enter the monitoring box.

[0015] As a further improvement of the present technical solution, the top of the airbag is connected to an air delivery box, which is connected to an exhaust pipe. The inside of the air delivery box has a partition that separates the exhaust pipe from the airbag. The partition is L-shaped, and a support spring is elastically connected to the inner wall of the air delivery box at the bottom.

[0016] As a further improvement of the present technical solution, the airbag is bonded to the side wall of the monitoring box, the outside of the airbag is wrapped with a protective plate fixedly connected to the monitoring box, and the monitoring box is provided with a plurality of circular holes at the bonding point between the airbag and the monitoring box. Under normal circumstances, the circular holes are blocked by the airbag, and when the airbag is inflated, the airbag overflows from the circular holes into the interior of the monitoring box to slow down the speed at which the piston plate descends, thereby limiting the diffusion of residual air in the monitoring box.

[0017] As a further improvement of the technical solution, the ejection mechanism includes a U-shaped rod with one end located inside the monitoring box, and the other end is fixedly connected to a bent rod bent outward, the U-shaped rod is slidably connected to the monitoring box, and the tension spring sleeved on the U-shaped rod is fixedly connected to the bottom of the monitoring box;

[0018] A valve plate is arranged in the gas delivery box to separate the gas delivery box from the airbag, and compression springs are elastically connected between the two sides of the valve plate and the gas delivery box. Under normal conditions, the U-shaped rod abuts against the valve plate.

[0019] The second object of the invention is to provide a method for operating the atmospheric ozone monitoring described above, comprising the following method steps:

[0020] S1. When dynamic monitoring is performed, the airflow conveying mechanism is driven by wind power to convey external air into the monitoring box, and the piston plate is pressed under the action of the airflow to connect the airflow conveying mechanism with the exhaust pipe connected to the monitoring box;

[0021] S2. During the dynamic monitoring process, the piston plate moves back and forth to compress the air into the airbag for storage, so that it can be used for static monitoring later;

[0022] S3. During static monitoring, the ejection mechanism is triggered by the downward movement of the piston plate, and the ejection mechanism opens the airbag, so that the airbag and the exhaust pipe are connected, thereby forming a negative pressure in the exhaust pipe and sucking out the remaining air.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the atmospheric ozone monitoring system, the device can not only perform dynamic monitoring but also static monitoring, which improves the comprehensiveness of monitoring. Moreover, when the air in the airbag is released, the airflow is used to open the partition, and the exhaust pipe, the air box and the airbag are connected. Negative pressure is formed in the exhaust pipe to suck the air in the monitoring box, so that the residual air in the air pipe enters the monitoring box and is sucked away, thereby reducing the influence of the residual air in the air pipe on static monitoring and improving the accuracy of monitoring.

[0025] 2. In the atmospheric ozone monitoring system, when the airbag expands, it overflows from the round hole into the monitoring box to slow down the speed at which the piston plate descends and limits the diffusion of residual air in the monitoring box, so as to cooperate with the negative pressure formed in the exhaust pipe, making it easier to discharge the residual air in a short time and improve the accuracy of the monitoring results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the monitoring box of the present invention;

[0028] Figure 3 It is a schematic diagram of the internal structure of the monitoring box of the present invention;

[0029] Figure 4 It is a schematic diagram of the connection structure between the power impeller and the gas delivery impeller of the present invention;

[0030] Figure 5 It is a schematic diagram of the connection structure between the monitoring box and the piston plate of the present invention;

[0031] Figure 6 It is a schematic diagram of the connection structure of the air bag, the air delivery box and the exhaust pipe of the present invention;

[0032] Figure 7 It is a schematic diagram of the partial structure of the monitoring box and the exhaust pipe of the present invention.

[0033] The meaning of each number in the figure is:

[0034] 100, monitoring box; 101, box door; 102, first one-way valve; 103, exhaust pipe; 110, monitoring box; 111, round hole; 112, second one-way valve;

[0035] 120. air flow conveying mechanism; 121. power impeller; 122. air delivery pipe; 123. air delivery impeller; 124. gear set;

[0036] 130. Airbag;

[0037] 140, piston plate; 141, sleeve; 142, rack; 143, motor;

[0038] 150, ejection mechanism; 151, U-shaped rod; 152, bent rod; 153, tension spring; 154, valve plate; 155, compression spring;

[0039] 160, plug body; 161, vertical rod; 162, return spring;

[0040] 170. Gas box; 171. Partition; 172. Support spring. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] like Figure 1 , Figure 2 and Figure 3As shown, an atmospheric ozone monitoring system is provided, including a monitoring box 100 and a box door 101 hinged to the monitoring box 100, a monitoring box 110 is arranged inside the monitoring box 100, the side wall of the monitoring box 110 is connected to an exhaust pipe 103, and an ozone sensor is embedded in the top wall of the monitoring box 110, wherein, when monitoring is performed, external air first enters the monitoring box 110, and then the ozone sensor is used for monitoring, and after the monitoring is completed, the air is discharged from the exhaust pipe 103 to complete the entire monitoring process, and this process is divided into two monitoring modes, as shown below:

[0045] During dynamic monitoring, an airflow conveying mechanism 120 is arranged outside the monitoring box 100 to convey air to the monitoring box 110, so that the air passes through the ozone sensor and is discharged from the exhaust pipe 103. The monitoring box 110 is internally sleeved with a piston plate 140, and the side wall of the monitoring box 110 is provided with an air bag 130 connected thereto, so that the air flow can be used to apply pressure to the piston plate 140, and the air in the monitoring box 110 is pressed into the air bag 130 for storage.

[0046] That is to say, during the dynamic monitoring process, the air flow conveying mechanism 120 is driven by external wind to convey air to the monitoring box 110 for monitoring. Therefore, based on the above, combined with Figure 4 The specific structure of the airflow conveying mechanism 120 is further disclosed. The airflow conveying mechanism 120 includes a power impeller 121 located outside the side wall of the monitoring box 100 and an air pipe 122 that penetrates the side wall of the monitoring box 100. The power impeller 121 is supported by a bracket fixed to the side wall of the monitoring box 100. One end of the air pipe 122 is bent downward and connected to the monitoring box 110, and the other end is trumpet-shaped with an opening, presenting an outwardly expanding shape, so that external air can enter the air pipe 122. On the other hand, the air pipe 122 has an air delivery impeller 123 inside that delivers external air to the monitoring box 110. A gear set 124 is connected between the air delivery impeller 123 and the power impeller 121. The gear set 124 is located at one end of the opening of the air pipe 122, and the gear set 124 is formed by two mutually meshing bevel gears.

[0047] In this way, when the external wind force changes, the wind force is used to drive the power impeller 121 to rotate, and under the action of the gear set 124, the torsional force is transmitted to the air delivery impeller 123. The air delivery impeller 123 rotates to draw the external air into the air delivery pipe 122. The air enters the monitoring box 110 through the air delivery pipe 122 for monitoring, so that the air continuously flows through the ozone sensor and is discharged at the end of the exhaust pipe 103, thereby realizing dynamic monitoring of ozone and reflecting the changing trend and law of ozone concentration in real time.

[0048] Secondly, based on the above structure and combined with Figure 5As shown, a flow limiting component is arranged at the connection between the gas pipe 122 and the monitoring box 110, wherein the flow limiting component includes a plug body 160 adapted to the inner wall of the gas pipe 122, the plug body 160 is fixedly connected to the bottom of the vertical pole 161, and the vertical pole 161 is provided with a return spring 162 which is against the monitoring box 110. Under normal conditions, the plug body 160 is inserted into the gas pipe 122 to discharge the air in the gas pipe 122, the vertical pole 161 is embedded in the top inner wall of the monitoring box 110, and the bottom of the vertical pole 161 is flush with the top inner wall of the monitoring box 110. In this way, when the air supply pipe 122 delivers air to the monitoring box 110, the airflow overcomes the elastic potential energy of the return spring 162 to push open the plug body 160, and the airflow passes through the interior of the monitoring box 110 and is discharged from the exhaust pipe 103. When the plug body 160 is pushed out, the piston plate 140 is in contact with the top wall inside the monitoring box 110, that is, the exhaust pipe 103 is in a blocked state at this time.

[0049] Therefore, in order to compress the air in the monitoring box 110 into the airbag 130 for storage, the bottom of the piston plate 140 is elastically connected with a sleeve 141 that penetrates the bottom of the monitoring box 110, and the end of the piston plate 140 that fits the monitoring box 110 has a baffle, which is used to block the through hole at the connection between the exhaust pipe 103 and the monitoring box 110, so that the amount of air entering the monitoring box 110 is greater than the amount of air discharged, and the inner diameter of the air supply pipe 122 is the same as the inner diameter of the through hole. When dynamic monitoring is performed, the airflow is used to pressurize the piston plate 140 to gradually open the through hole, and the air in the monitoring box 110 flows out from the exhaust pipe 103. When the through hole piston plate 140 is affected by the air, it moves up and down. The reason is that due to the influence of natural factors such as external wind force, temperature changes and air pressure changes, the airflow will be affected. Therefore, the air entering the monitoring box 110 is not constant.

[0050] It should be noted that: Figure 5 As shown, the bottom of the piston plate 140 has a piston rod extending into the monitoring box 110, and springs are sleeved on both the upper and lower ends of the piston rod.

[0051] Furthermore, the bottom of the monitoring box 110 has an air inlet and an air outlet, and a second one-way valve 112 is disposed in each of the air inlet and the air outlet, wherein the air outlet is connected to the air bag 130 through a conduit, and the air bag 130 has a plurality of small holes, and the second one-way valve 112 in the air inlet is used to allow the air in the monitoring box 110 to enter the air bag 130 for storage, and the second one-way valve 112 in the air outlet is used to allow external air to enter the monitoring box 110. When the piston plate 140 reciprocates up and down, the air inside the monitoring box 110 is continuously compressed and stored in the air bag 130, so as to be used in static monitoring of ozone.

[0052] It is worth noting that the speed of air entering the airbag 130 is greater than the speed of air being discharged from the airbag 130 .

[0053] The above is the process of dynamic monitoring of ozone in this embodiment. Figure 5 Based on and combined with Figure 6 and Figure 7 FIG. 2 shows the process of static monitoring of ozone in this embodiment.

[0054] During static monitoring, the piston plate 140 moves downward to draw in external air, and the air enters the monitoring box 110 through the first one-way valve 102. As the piston plate 140 moves, the volume of air entering the monitoring box 110 increases, and then the ozone sensor is used to monitor ozone. The piston plate 140 squeezes the ejection mechanism 150 provided on the outside of the airbag 130, and the ejection mechanism 150 is used to release the air in the airbag 130, so that negative pressure is formed in the exhaust pipe 103 to suck the air in the monitoring box 110.

[0055] First, the bottom of the sleeve 141 is fixedly connected with a rack 142 that fits the side wall of the monitoring box 110, and a gear is meshed with the rack 142. The gear is coaxially connected with a motor 143 fixed on the top of the monitoring box 110. During static monitoring, the motor 143 drives the gear to rotate so that the motor 143 drives the sleeve 141 to move downward, thereby pulling the piston plate 140 to move downward to draw external air into the monitoring box 110. In this process, the plug 160 is opened, and the process of opening the plug 160 is as shown above, which will not be described in detail here. Next, a first one-way valve 102 is arranged inside the through hole, and the first one-way valve 102 is used to allow the air in the monitoring box 110 to be discharged from the exhaust pipe 103. Therefore, as the distance the piston plate 140 moves downward increases, the amount of air drawn into the monitoring box 110 from the air pipe 122 also increases accordingly, and the air remaining in the air pipe 122 during the previous dynamic monitoring also enters the monitoring box 110, which will affect the accuracy of static monitoring.

[0056] In view of the fact that the residual air in the gas delivery pipe 122 will affect the monitoring accuracy, a gas delivery box 170 is connected to the top of the air bag 130, and the gas delivery box 170 is connected to the exhaust pipe 103. The gas delivery box 170 has a partition 171 inside to separate the exhaust pipe 103 from the air bag 130. The partition 171 is L-shaped, and a support spring 172 is elastically connected to the inner wall of the gas delivery box 170 at the bottom. In other words, the device can not only perform dynamic monitoring but also static monitoring, which improves the comprehensiveness of monitoring. Moreover, when the air in the air bag 130 is released, the partition 171 is opened by airflow, and the exhaust pipe 103, the gas delivery box 170 and the air bag 130 are connected. Negative pressure is formed in the exhaust pipe 103 to suck the air in the monitoring box 110, so that the residual air in the gas delivery pipe 122 enters the monitoring box 110 and is sucked away, thereby reducing the influence of the residual air in the gas delivery pipe 122 on static monitoring and improving the accuracy of monitoring.

[0057] At the same time, the pushed-out partition 171 moves upward to reduce the cross-sectional area of ​​the exhaust pipe 103, thereby increasing the speed of the airflow passing through the exhaust pipe 103. Conversely, when the air release in the airbag 130 stops, the partition 171 is pulled in the opposite direction to return to its original position under the elastic action of the support spring 172.

[0058] Next, considering that in the process of the piston plate 140 moving downward, in order to slow down the speed of the piston plate 140 descending, the residual air is quickly extracted in a short time after entering the monitoring box 110. Therefore, the airbag 130 is bonded and connected to the side wall of the monitoring box 110, and the outside of the airbag 130 is wrapped with a protective plate fixedly connected to the monitoring box 110. The monitoring box 110 at the bonding point of the airbag 130 and the monitoring box 110 has a plurality of circular holes 111. Under normal conditions, the circular holes 111 are blocked by the airbag 130. When the airbag 130 expands, the airbag 130 overflows from the circular holes 111 into the inside of the monitoring box 110 to slow down the speed of the piston plate 140 descending, and limit the diffusion of the residual air in the monitoring box 110, so as to cooperate with the negative pressure formed in the exhaust pipe 103, and it is easier to discharge the residual air in a short time, thereby improving the accuracy of the monitoring results.

[0059] When the piston plate 140 moves to contact with the ejection mechanism 150, the piston plate 140 releases the air in the airbag 130 by triggering the ejection mechanism 150, so the specific structure of the ejection mechanism 150 is disclosed. The ejection mechanism 150 includes a U-shaped rod 151 with one end located inside the monitoring box 110, and a bent rod 152 bent outward is fixedly connected at the other end. The U-shaped rod 151 is slidably connected to the monitoring box 110, and the tension spring 153 on the U-shaped rod 151 is fixedly connected to the bottom of the monitoring box 110. On the other hand, a valve plate 154 is provided in the gas delivery box 170 to separate the gas delivery box 170 from the airbag 130, and compression springs 155 are elastically connected between the two sides of the valve plate 154 and the gas delivery box 170. Under normal conditions, the U-shaped rod 151 and the valve plate 154 are against each other.

[0060] When the piston plate 140 has not yet contacted the U-shaped rod 151, during this process, the piston plate 140 will also press the air inside the monitoring box 110 into the airbag 130, causing the airbag 130 to expand, so as to form a negative pressure in the exhaust pipe 103 when the air is released.

[0061] Working principle: When the piston plate 140 is lowered, external air and residual air in the air pipe 122 enter the monitoring box 110. During this process, the airbag 130 is in an expanded state, and the surface of the airbag 130 overflows from the circular hole 111 into the interior of the monitoring box 110. When the piston plate 140 passes by, the overflowing surface of the airbag 130 can increase the friction between the baffle and the baffle, thereby slowing down the descending speed of the piston plate 140.

[0062] As the piston plate 140 continues to descend, the piston plate 140 contacts the U-shaped rod 151, and the U-shaped rod 151 drives the bent rod 152 to move downward to release the valve plate 154, so that the air delivery box 170 is connected to the airbag 130, and the air in the airbag 130 is released to form a negative pressure in the exhaust pipe 103, thereby extracting the remaining air. When the piston plate 140 moves in the opposite direction, the elastic potential energy of the tension spring 153 is used to reset the U-shaped rod 151. At the same time, the valve plate 154 separates the air delivery box 170 from the airbag 130 again.

[0063] Finally, the plug body 160 pushes out the residual air in the air delivery pipe 122 to reduce the residual air in the air delivery pipe 122 .

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An atmospheric ozone monitoring system, comprising a monitoring box (100) and a box door (101) hinged to the monitoring box (100), a monitoring box (110) being arranged inside the monitoring box (100), an exhaust pipe (103) being connected to a side wall of the monitoring box (110), and an ozone sensor being embedded in a top wall of the monitoring box (110), characterized in that: During dynamic monitoring, an airflow conveying mechanism (120) is disposed outside the monitoring box (100) to convey air into the monitoring box (110), so that the air passes through the ozone sensor and is discharged from the exhaust pipe (103); a piston plate (140) is sleeved and fitted inside the monitoring box (110); a side wall of the monitoring box (110) is provided with an air bag (130) in communication with the piston plate (140), so that air in the monitoring box (110) is pressed by airflow to be stored in the air bag (130); During static monitoring, the piston plate (140) moves downward to draw in external air, and the piston plate (140) squeezes the ejection mechanism (150) provided outside the airbag (130). The ejection mechanism (150) is used to release the air in the airbag (130), so that negative pressure is formed in the exhaust pipe (103) to suck the air in the monitoring box (110).

2. The atmospheric ozone monitoring system according to claim 1, characterized in that: The air flow conveying mechanism (120) comprises a power impeller (121) located outside the side wall of the monitoring box (100) and an air delivery pipe (122) penetrating the side wall of the monitoring box (100); the power impeller (121) is supported by a bracket fixed to the side wall of the monitoring box (100); one end of the air delivery pipe (122) is bent downward and communicated with the monitoring box (110); the other end is trumpet-shaped and has an opening, presenting an outwardly expanding shape, so that external air can enter the air delivery pipe (122).

3. The atmospheric ozone monitoring system according to claim 2, characterized in that: The air delivery pipe (122) has an air delivery impeller (123) inside for delivering external air to the monitoring box (110); a gear set (124) is connected between the air delivery impeller (123) and the power impeller (121); the gear set (124) is located at one end of the opening of the air delivery pipe (122), and the gear set (124) is composed of two mutually meshing bevel gears.

4. The atmospheric ozone monitoring system according to claim 2, characterized in that: A flow limiting component is provided at the connection between the gas pipe (122) and the monitoring box (110), wherein the flow limiting component comprises a plug body (160) adapted to the inner wall of the gas pipe (122), the plug body (160) being fixedly connected to the bottom of a vertical pole (161), the vertical pole (161) being sleeved with a return spring (162) abutting against the monitoring box (110), and under normal conditions, the plug body (160) is inserted into the gas pipe (122) to discharge the air in the gas pipe (122), the vertical pole (161) is embedded in the top inner wall of the monitoring box (110), and the bottom of the vertical pole (161) is flush with the top inner wall of the monitoring box (110).

5. The atmospheric ozone monitoring system according to claim 2, characterized in that: The bottom of the piston plate (140) is elastically connected to a sleeve (141) that penetrates the bottom of the monitoring box (110); the end of the piston plate (140) that is in contact with the monitoring box (110) is provided with a baffle plate, which is used to block the through hole at the connection between the exhaust pipe (103) and the monitoring box (110), so that the amount of air entering the monitoring box (110) is greater than the amount of air discharged; the inner diameter of the air supply pipe (122) is the same as the inner diameter of the through hole; a first one-way valve (102) is provided inside the through hole, and the first one-way valve (102) is used to allow the air in the monitoring box (110) to be discharged from the exhaust pipe (103); The bottom of the sleeve (141) is fixedly connected to a rack (142) that fits the side wall of the monitoring box (110), and a gear is meshed with the rack (142). The gear is coaxially connected to a motor (143) fixed to the top of the monitoring box (110).

6. The atmospheric ozone monitoring system according to claim 1, characterized in that: The monitoring box (110) has an air inlet and an air outlet at the bottom, and a second one-way valve (112) is arranged in each of the air inlet and the air outlet, wherein the air outlet is connected to the air bag (130) through a conduit, and the air bag (130) has a plurality of small holes, and the second one-way valve (112) in the air inlet is used to allow air in the monitoring box (110) to enter the air bag (130) for storage, and the second one-way valve (112) in the air outlet is used to allow external air to enter the monitoring box (110).

7. The atmospheric ozone monitoring system according to claim 1, characterized in that: The top of the airbag (130) is connected to an air delivery box (170), and the air delivery box (170) is connected to an exhaust pipe (103). The air delivery box (170) has a partition (171) inside for separating the exhaust pipe (103) from the airbag (130). The partition (171) is L-shaped, and a support spring (172) is elastically connected to the inner wall of the air delivery box (170) at the bottom.

8. The atmospheric ozone monitoring system according to claim 1, characterized in that: The airbag (130) is bonded to the side wall of the monitoring box (110); the outside of the airbag (130) is wrapped with a protective plate fixedly connected to the monitoring box (110); a plurality of circular holes (111) are provided on the monitoring box (110) at the bonding point between the airbag (130) and the monitoring box (110); under normal conditions, the circular holes (111) are blocked by the airbag (130); when the airbag (130) is inflated, the airbag (130) overflows from the circular holes (111) into the interior of the monitoring box (110) to slow down the descending speed of the piston plate (140) and limit the diffusion of residual air in the monitoring box (110).

9. The atmospheric ozone monitoring system according to claim 7, characterized in that: The ejection mechanism (150) comprises a U-shaped rod (151) with one end located inside the monitoring box (110), and the other end is fixedly connected to a bent rod (152) bent outward, the U-shaped rod (151) is slidably connected to the monitoring box (110), and a tension spring (153) sleeved on the U-shaped rod (151) is fixedly connected to the bottom of the monitoring box (110); A valve plate (154) is disposed inside the gas delivery box (170) to separate the gas delivery box (170) from the air bag (130). Compression springs (155) are elastically connected between the two sides of the valve plate (154) and the gas delivery box (170). Under normal conditions, the U-shaped rod (151) abuts against the valve plate (154).

10. A method for operating an atmospheric ozone monitoring system according to claim 1, characterized in that: The method comprises the following steps: S1. When dynamic monitoring is performed, the airflow conveying mechanism (120) is driven by wind power, and the airflow conveying mechanism (120) is used to convey external air into the monitoring box (110), and the piston plate (140) is pressed under the action of the airflow, so that the airflow conveying mechanism (120) and the exhaust pipe (103) connected to the monitoring box (110) are connected; S2, during the dynamic monitoring process, the piston plate (140) moves back and forth to compress the air into the airbag (130) for storage so as to be used in the later static monitoring; S3. When performing static monitoring, the piston plate (140) moves downward to trigger the ejection mechanism (150), and the ejection mechanism (150) opens the airbag (130), so that the airbag (130) and the exhaust pipe (103) are connected, thereby forming a negative pressure in the exhaust pipe (103) and sucking the remaining air.

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