Atmosphere sampler for monitoring carbon-containing emissions in atmosphere

Abstract

The invention relates to an atmosphere sampler for monitoring carbon-containing emissions in atmosphere, which is characterized in that an air inlet pipe communicated with a gas collecting hood is axially fixed in a sampling bin, a plurality of piston rings are axially sleeved outside the air inlet pipe in a sliding fit manner, a plurality of isolating rings are fixedly sleeved outside the air inlet pipe, and the sampling bin is equally divided into a plurality of sub-bins by the isolating rings; a pair of piston rings is arranged in each sub-bin; a screw rod is coaxially and rotationally mounted in the air inlet pipe, and a plunger is arranged on the screw rod in a threaded sleeving manner; an air inlet hole is formed in the inner wall of the air inlet pipe corresponding to each sub-bin; an elastic plug for enabling the air inlet hole to be normally opened is arranged above each air inlet hole; when the lead screw rotates for a set time, the plunger translates to the plugging position for plugging the next air inlet hole along the lead screw, and the piston ring extrudes the elastic plug when moving reversely relative to the plunger; a wind wheel is rotationally mounted in the gas collecting hood, and is linked with the screw rod to input an air sample into the sampling bin. According to the invention, the carbon-containing emissions can be automatically, efficiently and sequentially sampled.

Description

Technical Field

[0001] This invention relates to the field of gas sampling equipment technology, and more specifically to an atmospheric sampler for monitoring carbon emissions in the atmosphere. Background Technology

[0002] Sampling of carbon emissions in the atmosphere differs significantly from sampling of general gases in several aspects. These differences stem from the characteristics of carbon emissions, monitoring requirements, and different practical application scenarios.

[0003] From the perspective of the characteristics of the monitored objects, carbon emissions in the atmosphere, such as carbon dioxide and carbon monoxide, often exist in the atmosphere at relatively low concentrations, and their concentration changes have a significant impact on the environment and climate, requiring multiple samplings to obtain accurate data; while the objects of general atmospheric gas sampling may include common gases such as oxygen and nitrogen, whose concentrations are relatively high and the fluctuation range is small, and the analysis results are not significantly different when sampling is carried out at any time.

[0004] Unlike the concentrations of oxygen and nitrogen in the atmosphere, the concentrations of carbon emissions such as carbon dioxide, carbon monoxide, and methane are closely related to different times of day, rather than remaining at a constant value. This is because human activities and production processes cause significant variations in carbon emissions. Furthermore, the concentrations of carbon emissions are relatively low compared to oxygen and nitrogen in the atmosphere, especially carbon monoxide and methane, making these temporal concentration variations extremely significant and non-negligible. In addition, since changes in carbon emission concentrations can be directly linked to major issues such as global climate change, the accuracy of the sampling data is crucial, necessitating the use of unsuitable ordinary samplers.

[0005] Therefore, it is essential to design an atmospheric sampler that can automatically and intermittently sample, independently save single samples, and store samples sequentially in chronological order. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide an atmospheric sampler for monitoring carbon emissions in the atmosphere, so as to solve the problems mentioned in the background art.

[0007] This invention is achieved through the following technical solution:

[0008] An atmospheric sampler for monitoring carbon emissions in the atmosphere includes a sampling chamber for storing gas samples. The sampling chamber has a cylindrical structure and a gas collection hood at its front end. An air inlet pipe that communicates with the gas collection hood is axially fixed inside the sampling chamber. Several piston rings are axially slidably fitted on the outside of the air inlet pipe, and several isolation rings are fixedly fitted on it. The isolation rings divide the sampling chamber into several sub-chambers, and each sub-chamber is provided with a pair of piston rings.

[0009] A lead screw is coaxially rotatably mounted inside the intake pipe, and a plunger is threaded onto the lead screw; the inner wall of the intake pipe corresponding to each sub-compartment has an intake hole, and an elastic plug is provided above each intake hole to keep the intake hole open; each intake hole is connected to the area between the piston ring and the isolation ring in the initial state through an intake air passage, so that when the lead screw rotates for a set time, the plunger moves along the lead screw to the blocking position of the next intake hole, and when the piston ring moves in the opposite direction relative to the plunger, it squeezes the elastic plug, causing the elastic plug to block its corresponding intake hole;

[0010] A fan is rotatably installed inside the gas collection hood. The fan is linked to a lead screw. The rotation of the fan causes air to rush into the sub-compartment through the air inlet, which in turn pushes the piston ring to move axially.

[0011] Furthermore, the piston ring is axially slidably sleeved on a guide rod, which is axially fixed inside the sampling chamber parallel to the sampling chamber. A return spring is sleeved on the guide rod in each sub-chamber, and the return spring elastically mounts the piston ring horizontally inside the sub-chamber.

[0012] Furthermore, the elastic plug includes a sliding cap, a guide post, and a pressure-resistant spring. The sliding cap is vertically slidably installed inside the wall of the air intake pipe and cannot detach from the pipe wall. The sliding cap and the guide post are elastically connected by the pressure-resistant spring. Under normal conditions, the sliding cap is in a position that allows the air intake hole and the air intake passage to communicate with each other.

[0013] A pusher is elastically and downwardly mounted on one side of the piston ring in a vertical direction. Each sub-compartment has a limiting block inside its wall. When the piston ring moves to contact the limiting block, the pusher presses the sliding cap down to block the air inlet.

[0014] Furthermore, the piston rings include large rings and small rings of different sizes. The small rings are positioned away from the isolation rings, the large rings slide in contact with the sub-compartment, and the small rings are provided with the push pins.

[0015] Furthermore, each return spring is coaxially provided with an outer sleeve and an inner tube. One end of the outer sleeve is fixed to the side wall of the sub-compartment or the end face of the isolation ring, and the other end is axially slidably inserted into the inner tube. The end of the inner tube protruding from the outer sleeve is fixed to the end face of the piston ring, and the two tubes are never separated.

[0016] Furthermore, a guide block is provided on one side of the plunger, and the guide block slides in conjunction with a guide groove opened on the inner wall of the intake pipe.

[0017] Furthermore, the plunger is slidably penetrated by a round rod parallel to the axial direction, and the round rod is fixed inside the intake manifold to restrict the plunger's rotation.

[0018] Furthermore, the air hood has a funnel-shaped structure, with its large end serving as an air inlet and its small end coaxially connected to the inlet end of the air inlet pipe, and its diameter is smaller than that of the air inlet pipe.

[0019] Furthermore, the impeller is coaxially mounted on one end of the lead screw located inside the air collecting hood to achieve synchronous rotation. The other end of the lead screw is connected to a micro motor fixed at the end of the sampling chamber. After the impeller rotates for a set time and stops, the elastic plug is completely pressed down by the push pin on the corresponding piston ring to block the previous air inlet, and the plunger moves a set displacement to block the next air inlet.

[0020] Furthermore, the impeller and the lead screw are connected by a reduction mechanism. The reduction mechanism ensures that after the impeller rotates for a set time and stops, the elastic plug is completely pressed down by the push pin on the corresponding piston ring to block the previous air inlet, and the plunger moves a set displacement to block the next air inlet.

[0021] The beneficial effects of this invention are as follows:

[0022] This atmospheric sampler for monitoring carbon emissions in the atmosphere injects air into the corresponding sample chambers through an intermittent active air supply pipe. Each sample is stored independently, enabling automatic independent sampling. The collected samples are stored in a sample chamber in sequence and by time, eliminating the need for manual sample storage and time arrangement management. This facilitates the analysis of the concentration and generation trends of carbon emissions in the atmosphere.

[0023] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0024] Figure 1 This is an axial sectional view of the present invention;

[0025] Figure 2 This is a partial structural diagram of the invention when it is in a horizontal position;

[0026] Figure 3 This is a schematic diagram of the structure of the elastic plug used in this invention to seal the air inlet.

[0027] Figure 4 for Figure 2 Schematic diagram of the structure at point M;

[0028] Figure 5 This is a schematic cross-sectional view of the piston ring of the present invention at the small ring.

[0029] In the diagram: Sampling chamber 1, Sample chamber 101, Gas collection hood 2, Fan wheel 3, Plunger 4, Lead screw 5, Isolation ring 6, Piston ring 7, Small ring 701, Large ring 702, Elastic plug 8, Sliding cap 801, Guide column 802, Pressure-resistant spring 803, Limiting block 9, Push column 10, Guide rod 11, Inner tube 12, Outer tube 13, Return spring 14, Inlet pipe 15, Inlet air passage 16, Inlet hole 17, Guide block 18, Round rod 19, Filter screen 20. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] Please see Figure 1-2 This invention provides a technical solution: an atmospheric sampler for monitoring carbon emissions in the atmosphere, comprising a sampling chamber 1 for storing gas samples. The sampling chamber 1 has a cylindrical structure with an internal cylindrical chamber structure for containing air. In this embodiment, a gas collection hood 2 is also provided at the front end of the sampling chamber 1, and an air inlet pipe 15 communicating with the gas collection hood 2 is axially fixed inside the sampling chamber 1. A plurality of piston rings 7 are axially slidably fitted on the outside of the air inlet pipe 15, and the pistons are slidably fitted on the air inlet pipe 15. Meanwhile, several isolation rings 6 are fixedly fitted on the air inlet pipe 15. The isolation rings 6 divide the sampling chamber 1 into several independent sub-chambers. Each sub-chamber is equipped with a pair of piston rings 7, so that the piston rings 7, the isolation rings 6 and the chamber wall of the sampling chamber 1 form a closed sample chamber 101 with a dynamically changeable volume. This sample chamber 101 is the area where the sample gas is actually stored. When the piston rings 7 move into place, the sample chamber 101 reaches the set volume and contains the corresponding sample gas.

[0034] In this embodiment, as Figures 1-3 As shown, a lead screw 5 is coaxially rotatably installed inside the intake pipe 15. A plunger 4 is threaded onto the lead screw 5, and the plunger 4 moves axially along the lead screw 5. Each sub-compartment has an intake hole 17 on its inner wall corresponding to the intake pipe 15. Above each intake hole 17 is a resilient plug 8 that keeps the intake hole 17 normally open; that is, when not in operation, the resilient plug 8 does not block the corresponding intake hole 17. Furthermore, as... Figures 2-4 As shown, each air intake 17 communicates with the area between the piston ring 7 and the isolation ring 6 in the initial state via an air intake passage 16. In the initial state, the piston ring 7 and the isolation ring 6 do not contact each other and will never come into contact. During use, when the lead screw 5 is rotated for a set time, the plunger 4 translates along the lead screw 5 by a displacement. After this displacement, as shown... Figure 2 As shown, the piston ring 4 moves to the blocking position of the next air inlet 17, meaning that each time the piston 4 moves, it moves to the corresponding blocking position and closes the corresponding air inlet 17. This ensures that when the previous sample chamber 101 is collecting and storing sample gas, the sample gas does not accidentally enter the next sample chamber 101 through the next air inlet 17. More specifically, when the piston ring 7 moves in the opposite direction to the piston 4, that is, because... Figure 2 As shown in the structural design, when the plunger 4 moves to the right, the piston ring 7 moves to the left due to the influx of sample gas. This causes the elastic plug 8 to be squeezed, blocking the corresponding air inlet 17. Thus, the sample chamber 101 is completely sealed, and the sample gas collected in this instance is sealed.

[0035] In this embodiment, as Figures 1-2 As shown, an impeller 3 is rotatably mounted axially inside the gas collection hood 2. The impeller 3 is linked to the lead screw 5; that is, when the impeller 3 rotates, the lead screw 5 rotates accordingly. This allows the sample gas to enter the sampling chamber 1, while the plunger 4 also moves accordingly. The rotation of the impeller 3 causes air to rush into the sub-chamber through the air inlet 17, which in turn pushes the piston ring 7 axially, thereby blocking the corresponding air inlet 17 with the elastic plug 8, thus sealing the stored sample gas. In the design, the rotation speed and rotation time of the impeller 3 are designed to allow sufficient airflow into the sample chamber 101, enabling the piston ring 7 to move to the position where the elastic plug 8 blocks the corresponding air inlet 17, and simultaneously the plunger 4 also moves to the corresponding blocking position, i.e., moves by a predetermined displacement.

[0036] In this embodiment, as Figure 2As shown, the piston ring 7 is axially slidably mounted on a guide rod 11. The guide rod 11 is fixed axially within the sampling chamber 1, parallel to the sampling chamber 1. This is mainly to facilitate the rotation of the piston ring 7 when the contact between the piston ring 7 and the inner wall of the sampling chamber 1 is not tight enough, thus affecting the compression contact alignment of the elastic plug 8. In specific manufacturing, a return spring 14 can be mounted on the guide rod 11 in each sub-chamber. The return spring 14 horizontally and elastically mounts the piston ring 7 in the sub-chamber, thereby setting the initial position of each piston ring 7 relative to its isolation ring 6.

[0037] In this embodiment, as Figures 3-4 As shown, in practice, this elastic plug 8 includes a sliding cap 801, a guide post 802, and a pressure-resistant spring 803. The sliding cap 801 is vertically slidably installed inside the wall of the intake pipe 15 and cannot detach from the pipe wall. The sliding cap 801 and the guide post 802 are elastically connected by the pressure-resistant spring 803. Furthermore, under normal conditions, such as... Figure 4 As shown, the sliding cap 801 is positioned to allow the air inlet 17 and the air inlet channel 16 to communicate with each other, so that sample air can enter. Furthermore, as... Figures 2-3 A pusher post 10 is elastically and downwardly mounted vertically on one side of the piston ring 7. Each sub-compartment has a limiting block 9 within its wall. When the piston ring 7 moves to contact the limiting block 9, the pusher post 10 moves to the position where the piston ring 7 has just reached, pressing the sliding cap 801 down to block the air inlet 17, thereby sealing the sample compartment 101, i.e., sealing the air inlet 17 and the air intake passage 16. During manufacturing, to facilitate sealing, the piston ring 7 can be made as follows... Figure 3 , Figure 5 The structure shown includes a stepped frustum structure of large rings 702 and small rings 701 of different sizes. The small rings 701 are positioned away from the isolation ring 6, while the large rings 702 slide in contact with the sub-compartment for sliding sealing. The small rings 701 are used to drive the aforementioned elastic plugs 8, i.e., a pusher column 10 is provided on one side of the small rings 701.

[0038] To prevent the return spring 14 from being directly exposed inside the sampling chamber 1, in this embodiment, an outer sleeve 13 and an inner insertion tube 12 are coaxially provided outside each return spring 14. One end of the outer sleeve 13 is fixed to the side wall of the sub-chamber or the end face of the isolation ring 6, and the other end is axially slidably inserted into the inner insertion tube 12. The end of the inner insertion tube 12 that protrudes from the outer sleeve 13 is fixed to the end face of the piston ring 7, and the two tubes are never separated, forming a structure similar to an elastic telescopic rod together with the return spring 14.

[0039] As one of the specific implementation structures, such as Figure 2A guide block 18 can be provided on one side of the plunger 4. The guide block 18 slides in conjunction with a guide groove opened on the inner wall of the intake pipe 15 to achieve feed of the lead screw 5. As a second specific implementation structure, such as Figure 2 The plunger 4 is slidably penetrated by a round rod 19 in a direction parallel to the axial direction. The round rod 19 is fixed inside the intake pipe 15 to restrict the rotation of the plunger 4 and realize the feeding of the screw 5.

[0040] In this embodiment, as Figure 2 As shown, its air collecting hood has a funnel-shaped structure, with its large end serving as the air inlet 17. A filter screen 20 is provided at the opening of the air inlet 17. The small end of the air collecting hood is coaxially connected to the inlet end of the air inlet pipe 15, and its diameter is smaller than that of the air inlet pipe 15, so that the gas can enter the area where the plunger 4 in the air inlet pipe 15 has slid away.

[0041] In this embodiment, as Figure 2 As shown, the impeller 3 can be coaxially mounted on one end of the lead screw 5 located inside the air collecting hood to achieve synchronous rotation. The other end of the lead screw 5 is connected to a micro motor (not shown in the figure) fixed at the end of the sampling chamber 1. After the impeller 3 rotates for a set time and stops, the elastic plug 8 is completely pressed down by the push pin 10 on the corresponding piston ring 7, thereby blocking the previous air inlet 17. At this time, the plunger 4 moves a set displacement to block the next air inlet 17. When the micro motor restarts to sample after a set time, the plunger 4 repeats the above-mentioned movement process, exposing the corresponding air inlet 17 for the next sampling.

[0042] In addition to the above design, when the sampling volume is large, or when the axial length of each sub-compartment of sampling chamber 1 is long, considering the difference between the rotation speed of impeller 3 and lead screw 5, the rotation speed of lead screw 5 should be slower so that impeller 3 can rotate for a longer time. Otherwise, the air entering the sampling chamber will not be enough to push piston ring 7 to the position of squeezing elastic plug 8 before plunger 4 has already moved to the position of blocking the next air inlet 17. Therefore, impeller 3 and lead screw 5 can be connected by a reduction mechanism. The reduction mechanism ensures that after impeller 3 rotates for a set time and stops, elastic plug 8 is completely pressed down by the pusher 10 on the corresponding piston ring 7, thereby blocking the previous air inlet 17, and plunger 4 moves a set displacement to block the next air inlet 17. The reduction mechanism can be a reduction gear assembly or other existing reduction transmission device, which will not be elaborated here. Generally speaking, when the air sampling volume is relatively small, making the sampling column relatively thin and long is sufficient to push the piston ring 7 to the predetermined position by the incoming air.

[0043] In the above embodiments, when the atmospheric sampler for monitoring carbon emissions in the atmosphere is used, for example, when installed horizontally, the impeller 3 is started and rotated, causing air to rush into the air inlet pipe 15. As the plunger 4 moves accordingly, the air enters the piston ring 7 and the isolation ring 6 in the corresponding sub-compartment through the air inlet 17 and the air inlet channel 16. This pushes the piston ring 7 away from the isolation ring 6 until the isolation ring 6 contacts the limiting block 9. At this time, the pusher 10 presses down the sliding cap 801, blocking the air inlet 17 and sealing the air sample in the sample compartment 101. The plunger 4 then moves to a position that closes the next air inlet 17, so that when the impeller 3 is started again, the plunger 4 will continue to move and expose the corresponding air inlet 17 for the next sampling. When extracting sample air, sample air can be extracted from the sampling port (not shown in the figure) with a valve installed on the side wall of each sample compartment 101. The piston ring 7 automatically resets to its initial position under the action of the return spring 14.

[0044] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An atmospheric sampler for monitoring carbon emissions in the atmosphere, comprising a sampling chamber (1) for storing gas samples, characterized in that: The sampling chamber (1) is a cylindrical structure. The front end of the sampling chamber (1) has a gas collection hood (2). An air inlet pipe (15) connected to the gas collection hood (2) is fixed in the sampling chamber (1) axially. Several piston rings (7) are slidably fitted on the outside of the air inlet pipe (15), and several isolation rings (6) are fixedly fitted on it. The isolation rings (6) divide the sampling chamber (1) into several sub-chambers. Each sub-chamber is provided with a pair of piston rings (7). A lead screw (5) is rotatably mounted coaxially inside the intake pipe (15), and a plunger (4) is threaded onto the lead screw (5); the inner wall of the intake pipe (15) corresponding to each sub-compartment has an intake hole (17), and an elastic plug (8) is provided above each intake hole (17) to keep the intake hole (17) open; each intake hole (17) is connected to the area between the piston ring (7) and the isolation ring (6) in the initial state through an intake air passage (16), so that when the lead screw (5) rotates for a set time, the plunger (4) moves along the lead screw (5) to the blocking position to block the next intake hole (17), and when the piston ring (7) moves in the opposite direction relative to the plunger (4), it squeezes the elastic plug (8), causing the elastic plug (8) to block its corresponding intake hole (17); A fan wheel (3) is rotatably installed inside the air collection hood (2). The fan wheel (3) is linked with the lead screw (5). The rotation of the fan wheel (3) causes air to rush into the sub-compartment through the air inlet (17), which in turn pushes the piston ring (7) to move axially.

2. The atmospheric sampler for monitoring carbon emissions in the atmosphere according to claim 1, characterized in that: The piston ring (7) is axially slidably sleeved on a guide rod (11). The guide rod (11) is axially fixed in the sampling chamber (1) parallel to the sampling chamber (1). A return spring (14) is sleeved on the guide rod (11) in each sub-chamber. The return spring (14) elastically installs the piston ring (7) horizontally in the sub-chamber.

3. The atmospheric sampler for monitoring carbon emissions in the atmosphere according to claim 1, characterized in that: The elastic plug (8) includes a sliding cap (801), a guide post (802), and a pressure-resistant spring (803). The sliding cap (801) is vertically slidably installed inside the pipe wall of the air intake pipe (15) and cannot be separated from the pipe wall. The sliding cap (801) and the guide post (802) are elastically connected by the pressure-resistant spring (803). Under normal conditions, the sliding cap (801) is in a position that allows the air intake hole (17) and the air intake passage (16) to communicate with each other. A pusher (10) is elastically and downwardly mounted on one side of the piston ring (7) in a vertical direction. Each sub-compartment has a limiting block (9) in its wall. When the piston ring (7) moves to contact the limiting block (9), the pusher (10) presses the sliding cap (801) down to block the air inlet (17).

4. The atmospheric sampler for monitoring carbon emissions in the atmosphere according to claim 3, characterized in that: The piston ring (7) includes a large ring (702) and a small ring (701) of different sizes. The small ring (701) is positioned away from the isolation ring (6). The large ring (702) slides in contact with the sub-compartment. The small ring (701) is provided with the pusher column (10).

5. The atmospheric sampler for monitoring carbon emissions in the atmosphere according to claim 2, characterized in that: Each return spring (14) is coaxially provided with an outer tube (13) and an inner tube (12). One end of the outer tube (13) is fixed to the side wall of the sub-compartment or the end face of the isolation ring (6), and the other end is axially slidably inserted into the inner tube (12). The end of the inner tube (12) protruding from the outer tube (13) is fixed to the end face of the piston ring (7), and the two tubes are never separated.

6. The atmospheric sampler for monitoring carbon emissions in the atmosphere according to claim 1, characterized in that: The plunger (4) is provided with a guide block (18) on one side, and the guide block (18) slides in cooperation with the guide groove opened on the inner wall of the air intake pipe (15).

7. The atmospheric sampler for monitoring carbon emissions in the atmosphere according to claim 1, characterized in that: The plunger (4) is slidably penetrated by a round rod (19) in a direction parallel to the axial direction. The round rod (19) is fixed inside the intake pipe (15) to restrict the rotation of the plunger (4).

8. The atmospheric sampler for monitoring carbon emissions in the atmosphere according to claim 1, characterized in that: The air collecting hood has a funnel-shaped structure, with its large end serving as an air inlet (17) and its small end coaxially connected to the inlet end of the air inlet pipe (15), and its diameter is smaller than that of the air inlet pipe (15).

9. The atmospheric sampler for monitoring carbon emissions in the atmosphere according to any one of claims 1-8, characterized in that: The impeller (3) is coaxially mounted on one end of the lead screw (5) located inside the air collecting hood to achieve synchronous rotation. The other end of the lead screw (5) is connected to a micro motor fixed at the end of the sampling chamber (1). After the impeller (3) rotates for a set time and stops, the elastic plug (8) is completely pressed down by the push pin (10) on the corresponding piston ring (7) to block the previous air inlet (17), and the plunger (4) moves to a set displacement to block the next air inlet (17).

10. The atmospheric sampler for monitoring carbon emissions in the atmosphere according to any one of claims 1-8, characterized in that: The impeller (3) and the lead screw (5) are connected by a speed reduction mechanism. The speed reduction mechanism causes the impeller (3) to stop after rotating for a set time each time. The elastic plug (8) is completely pressed down by the push pin (10) on the corresponding piston ring (7) to block the previous air inlet (17), and the plunger (4) moves to a set displacement to block the next air inlet (17).

Images