A method for online carbon monitoring and the equipment used therein

Abstract

This invention provides a method for online carbon monitoring and the equipment used therein, belonging to the technical field of environmental monitoring. The invention includes steps S1, multi-point sampling; S2, sample mixing; S3, sample filtration; S4, sample drying; S5, content detection; and S6, data processing. By simultaneously selecting several gas samples at different heights, and then introducing these gas samples into the mixing chamber of the same mixing device for thorough mixing, the mixed gas samples are sequentially filtered and dried using a filtration device. This effectively removes impurities and moisture from the gas samples, avoiding interference during monitoring and improving the accuracy of the monitoring results. Furthermore, the use of equipment with a support frame, lifting assembly, mixing device, filtration device, dehumidification device, and monitoring device enhances the convenience of detection. The equipment has a simple structure, is easy to use, and is beneficial for online carbon monitoring.

Description

Technical Field

[0001] This invention relates to the technical field of environmental monitoring, specifically to an online carbon monitoring method and the equipment used therein. Background Technology

[0002] Carbon dioxide, a major component of air, is a key monitoring indicator in environmental assessments and a primary source of data supporting the environmental carbon content. Currently, existing carbon dioxide monitoring methods primarily use carbon dioxide sensors to detect collected gas samples and calculate the concentration of carbon dioxide in the air to meet monitoring needs. However, in actual monitoring, gas samples often contain numerous interfering components, such as impurities and moisture. During use, impurities can adhere to the probe, and moisture can affect the accuracy of the carbon dioxide sensor, leading to biased monitoring results. Furthermore, existing sampling points only take samples once per unit time in the same area, and because carbon dioxide concentrations vary at different locations in the air, the real-time monitoring data may not accurately represent the current environmental carbon dioxide concentration, resulting in inaccurate monitoring results. Summary of the Invention

[0003] To address the aforementioned problems in existing technologies, this invention aims to provide a carbon online monitoring method and its associated equipment. The method involves selecting several gas samples vertically, then introducing these samples into a single mixing chamber for thorough mixing. The mixed gas samples are then filtered and dried to remove interfering impurities that could affect monitoring accuracy, thereby improving the accuracy of the monitoring results. Furthermore, the method incorporates a monitoring device with a lifting assembly, mixing unit, filtration unit, and dehumidification unit, meeting the requirements for multi-point sampling, sample mixing, sample filtration, and sample drying. The method is simple in structure, easy to operate, and beneficial for online carbon monitoring.

[0004] The specific technical solution is as follows:

[0005] A method for online carbon monitoring includes the following steps:

[0006] Step S1, multi-point sampling;

[0007] Simultaneously collect several gas samples at different altitudes, and control the collection speed and collection time of each gas sample to be exactly the same.

[0008] Step S2, sample mixing;

[0009] Several gas samples collected simultaneously in step S1 are simultaneously transported to a mixing device for thorough mixing to obtain a mixed sample, which is ready for subsequent use.

[0010] Step S3, sample filtering;

[0011] The mixed sample obtained in step S2 is filtered through a filtration device to remove impurities from the mixed sample, resulting in a preliminary mixed sample.

[0012] Step S4: Dry the sample;

[0013] The preliminary mixed sample obtained in step S3 is passed into a dehumidifier for drying to remove moisture from the preliminary mixed sample and obtain the final mixed sample.

[0014] Step S5, content detection;

[0015] The final mixed sample obtained in step S4 is passed into a monitoring device equipped with a carbon dioxide sensor for content monitoring to obtain carbon dioxide concentration data in the environment.

[0016] Step S6, data processing;

[0017] Repeat steps S1-S5 multiple times to obtain several carbon dioxide concentration data. Use the multi-sample statistical method to calculate the average value to obtain the accurate carbon dioxide concentration.

[0018] In the above-mentioned online carbon monitoring method, when collecting gas samples in step S1, sampling tubes at different heights need to be arranged first, and the sampling should be started after the sampling tubes have been arranged and left to stand for 5 minutes.

[0019] A device for online carbon monitoring, characterized by the following features:

[0020] The support frame is installed in the area to be monitored.

[0021] The lifting component is mounted on a support and moves vertically. At the same time, the lifting component has several spaced collection holes arranged vertically. The distance between two adjacent collection holes gradually increases or decreases as the lifting component moves up and down.

[0022] The mixing device is mounted on a support and includes a mixing chamber and a mixing fan. The mixing chamber has a mixing cavity and several first air inlets and a first exhaust port that are connected to the mixing cavity. The several first air inlets are connected to several collection holes one by one through pipes. The mixing fan is located inside the mixing cavity and blows air in the direction of the first exhaust port.

[0023] A filtration device is mounted on a support and includes a filter box, a primary filter, and a secondary filter. The filter box has a filter chamber, a second air inlet, and a second exhaust port that connect to the filter chamber. The second air inlet is connected to the first exhaust port. The primary filter and the secondary filter are arranged sequentially in the filter chamber along the direction from the second air inlet to the second exhaust port. Both the primary and secondary filters are provided with rotating parts. A lifting baffle and a cleaning brush are provided between the primary and secondary filters. A cleaning brush is also provided between the secondary filter and the second exhaust port. Exhaust ports are provided on the filter box between the primary filter and the lifting baffle, and between the secondary filter and the second exhaust port.

[0024] The dehumidification device is mounted on a support frame and includes a dehumidification box, a dehumidification conveyor belt, a discharge box, and a dehumidification driver. The dehumidification box has a dehumidification chamber with a third air inlet and a third exhaust outlet. The third air inlet is connected to the second exhaust outlet, and the third exhaust outlet is connected to a monitoring device. The dehumidification conveyor belt is located at both ends of the dehumidification box, with one side passing through the dehumidification chamber. At the same time, several discharge boxes are provided on the dehumidification conveyor belt, and each discharge box contains desiccant. The dehumidification conveyor belt is poweredly connected to the dehumidification driver.

[0025] The monitoring device is mounted on a bracket and includes a monitoring box and a carbon dioxide sensor. The monitoring box has a fourth air inlet and a fourth air outlet, which are connected to the third air outlet. The carbon dioxide sensor is located inside the monitoring box.

[0026] In the aforementioned device for online carbon monitoring, the filter box has insertion holes that connect to the filter chamber around the primary and secondary filters. An insert plate is slidably inserted into each insertion hole, with one end of the insert plate extending into the filter chamber and a sealing gasket provided on its end face. Furthermore, slots corresponding to the insertion holes are provided on the sides of both the primary and secondary filters. When the insert plate is inserted or removed from the insertion hole, the end of the insert plate inserted into the filter chamber is inserted into the corresponding slot and is secured by the sealing gasket or removed from the corresponding slot.

[0027] In the aforementioned device for online carbon monitoring, the cleaning brush includes a roller brush and a lifting part. The lifting part is mounted on the filter box, and the roller brush is rotatably mounted on the lifting part. One side of the roller brush contacts the surface of the corresponding primary or secondary filter screen. Meanwhile, the other side of the roller brush of the cleaning brush corresponding to the primary filter screen also contacts the surface of the lifting baffle.

[0028] The aforementioned device for online carbon monitoring includes a lifting unit comprising a guide groove, a slider, a rack, a gear, and a lifting driver. The guide groove is arranged vertically, the slider slides in the guide groove, and the rotating shaft of the roller brush is mounted on the slider. Meanwhile, a rack is arranged vertically on the slider, the lower end of the rack is connected to the slider, and the upper end of the rack extends out of the filter box. The lifting driver is mounted outside the filter box, and the gear is mounted on the drive shaft of the lifting driver and meshes with the rack.

[0029] The aforementioned device for online carbon monitoring includes a lifting baffle comprising several plates, a pull wire, and a locking part. The plates are arranged vertically in sequence, with the lower end of the upper plate slidably connected to the upper end of the lower plate in an adjacent pair. Simultaneously, the lower end of the pull wire is connected to the lowermost plate, and the upper end of the pull wire extends out of the filter box. A locking part is provided on the filter box, and the end of the pull wire extending out of the filter box is wrapped around the locking part and clamped by the locking part.

[0030] In the aforementioned device for online carbon monitoring, a wire-passing hole is provided on the filter box at the point where the pull wire passes through. A wire-exit sealing assembly is provided inside the wire-passing hole. The wire-exit sealing assembly includes an annular ring and a compression screw. The wire-passing hole is a stepped hole, with its small-diameter end communicating with the filter chamber. The annular ring is placed inside the wire-passing hole and abuts against the step. A through hole is provided in the center of the compression screw. The compression screw is threadedly connected to the large-diameter end of the wire-passing hole and compresses the annular ring. The upper end of the pull wire passes through the annular ring and the through hole.

[0031] The aforementioned device for online carbon monitoring includes a discharge box comprising a bottom box and a flip cover. The bottom box has a placement cavity with an opening. The flip cover is located at the opening of the placement cavity and is hinged to one side of the bottom box. A locking hole is provided on the other side of the bottom box, and a locking foot corresponding to the locking hole is provided on the other side of the flip cover. Ventilation holes are provided on the bottom of the bottom box and the flip cover. The desiccant is placed in the placement cavity and covered by the flip cover.

[0032] The aforementioned device for online carbon monitoring includes a dehumidification unit that further comprises a cover assembly. The cover assembly is located outside the dehumidification box and above the dehumidification conveyor belt. Along the movement direction of the dehumidification conveyor belt, the side where the bottom box and the flip cover are hinged is located in front of the movement direction, while the locking hole and locking foot are located behind the movement direction. At the same time, a pressing plate is provided in the middle of the flip cover, which is aligned with the movement direction of the dehumidification conveyor belt and extends to the locking foot. The cover assembly includes a frame, a swing rod, a pressure roller, and a clamping spring. The frame is mounted on the dehumidification box. A swing rod is hinged to one side of the frame and arranged along the movement direction of the dehumidification conveyor belt. A pressure roller is rotatably mounted on the other end of the swing rod. At the same time, a clamping spring is provided between the swing rod and the frame. When the dehumidification conveyor belt moves the discharge box, the pressure roller contacts the pressing plate on the flip cover of each discharge box in sequence.

[0033] The positive effects of the above technical solution are:

[0034] The aforementioned online carbon monitoring method and its equipment involve selecting several gas samples at different heights, then introducing these samples into the mixing chamber of a mixing device for thorough mixing. The mixed gas samples are then sequentially filtered and dried using a filtration and drying device to remove interfering impurities that could affect monitoring accuracy, effectively improving the accuracy of the monitoring results. Furthermore, the monitoring equipment used in this method includes a lifting assembly, a mixing device, a filtration device, and a dehumidification device, effectively meeting the requirements for multi-point sampling, sample mixing, sample filtration, and sample drying. The equipment is simple in structure, easy to use, and convenient for online carbon monitoring. Attached Figure Description

[0035] Figure 1 This is a flowchart of an online carbon monitoring method according to the present invention;

[0036] Figure 2 This is a structural diagram of a filtration device according to a preferred embodiment of the present invention;

[0037] Figure 3 This is a structural diagram of a dehumidification device according to a preferred embodiment of the present invention;

[0038] Figure 4 for Figure 2 Enlarged view of section A;

[0039] Figure 5 This is a structural diagram of a feeding box according to a preferred embodiment of the present invention.

[0040] In the attached diagram: 1. Filter device; 11. Filter box; 12. Primary filter; 13. Secondary filter; 14. Lifting baffle; 15. Cleaning brush; 16. Cable exit sealing assembly; 111. Filter chamber; 112. Second air inlet; 113. Second exhaust port; 114. Drain port; 115. Insertion hole; 116. Insert plate; 117. Cable passage hole; 121. Slot; 141. Plate; 142. Pull cable; 143. Locking part; 151. Roller brush; 152. Lifting part; 161. Annular ring; 162. Pressing screw; 1161. Sealing gasket; 1521, Guide groove; 1522, Rack; 1523, Gear; 1524, Lifting drive; 1621, Through hole; 2, Dehumidification device; 21, Dehumidification box; 22, Dehumidification track; 23, Discharge box; 24, Cover assembly; 211, Third air inlet; 212, Third exhaust port; 213, Dehumidification chamber; 231, Base box; 232, Flip cover; 241, Frame; 242, Swing rod; 243, Pressure roller; 244, Pressing spring; 2311, Placement chamber; 2312, Locking hole; 2321, Locking foot; 2322, Extrusion plate. Detailed Implementation

[0041] To make the technical means, creative features, objectives, and effects of this invention easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 5 The technical solutions provided by this invention are described in detail, but the following content is not intended to limit this invention.

[0042] Figure 1 This is a flowchart of an online carbon monitoring method according to the present invention. Figure 1 As shown, the online carbon monitoring method provided in this embodiment includes the following steps:

[0043] Step S1, multi-point sampling;

[0044] Simultaneous collection of several gas samples at different altitudes not only meets the monitoring requirements of multi-point sampling but also ensures that the gas volume of each sample is the same, guaranteeing the accuracy of the mixed sample after subsequent mixing. It is worth noting that controlling the collection speed and time of each gas sample to be exactly the same is a prerequisite for ensuring sampling accuracy.

[0045] Step S2, sample mixing;

[0046] Several gas samples collected at the same time in step S1 are simultaneously transported to a mixing device for thorough mixing to obtain a mixed sample. The mixed sample is then manually mixed to accurately reflect the average index of the gas in the current sampling environment, awaiting subsequent filtration, drying and other operations.

[0047] Step S3, sample filtering;

[0048] The mixed sample obtained in step S2 is filtered through the filter device 1 to block impurities in the mixed sample that would affect the use of the carbon dioxide sensor probe. This effectively removes impurities from the mixed sample, resulting in a preliminary mixed sample that ensures higher accuracy in subsequent monitoring.

[0049] Step S4: Dry the sample;

[0050] The preliminary mixed sample obtained in step S3 is passed into the dehumidification device 2 for drying. The desiccant in the dehumidification device 2 adsorbs the moisture in the preliminary mixed sample, reducing the impact on the use of the carbon dioxide sensor during subsequent monitoring and further improving the accuracy of subsequent monitoring. At this point, the final mixed sample is obtained.

[0051] Step S5, content detection;

[0052] The final mixed sample obtained in step S4 is passed into a monitoring device equipped with a carbon dioxide sensor for content monitoring to obtain carbon dioxide concentration data in the current sampling environment.

[0053] Step S6, data processing;

[0054] Repeat steps S1-S5 multiple times to obtain several carbon dioxide concentration data. Preferably, each time steps S1-S5 are repeated, a 10-minute wait is required before repeating again. This avoids the problem of uneven sample cost distribution caused by the accumulation of gas after sampling and detection. At the same time, the calculation method of multi-sample statistical averaging is used to obtain accurate carbon dioxide concentration, which improves the accuracy of sampling and monitoring.

[0055] More specifically, when collecting gas samples in step S1, the operator needs to first arrange sampling tubes at different heights. After the sampling tubes are arranged, they need to stand for 5 minutes before starting the collection. This can prevent airflow caused by arranging sampling tubes at different heights and avoid the problem of airflow affecting the change of sample composition. The structural design is more reasonable.

[0056] Figure 2 This is a structural diagram of a filtration device according to a preferred embodiment of the present invention; Figure 3 This is a structural diagram of a dehumidification device according to a preferred embodiment of the present invention. Figure 2 and Figure 3 As shown, this embodiment also provides an apparatus for the above-mentioned online carbon monitoring method, including a support, a lifting assembly, a mixing device, a filter device 1, a dehumidification device 2, and a monitoring device. In this case, the lifting assembly, the mixing device, the filter device 1, the dehumidification device 2, and the monitoring device are all mounted on the support, and the lifting assembly, the mixing device, the filter device 1, the dehumidification device 2, and the monitoring device are connected in sequence through pipes.

[0057] Specifically, the support is set in the area to be monitored. The support can be a movable platform, such as a trolley, which has good mobility and greater flexibility of use; or it can be a fixed platform, such as a cement base, which has low manufacturing cost and high stability, providing a carrier for the subsequent installation of lifting components, mixing devices, filter devices 1, dehumidification devices 2 and monitoring devices.

[0058] More specifically, the lifting assembly mounted on the support includes several telescopic tubes, which are nested together to form a telescopic rod structure. Its specific structure includes, but is not limited to, the structure of the legs of existing height-adjustable desks on the market, allowing the lifting assembly to move vertically up and down to meet the height adjustment requirements. Simultaneously, the lifting assembly has several spaced-apart collection holes arranged vertically, allowing gas samples to be collected at different heights through these holes. Furthermore, the distance between adjacent collection holes gradually increases or decreases as the lifting assembly rises; that is, the distance between adjacent collection holes increases when the lifting assembly rises, ensuring that the collection holes are evenly distributed across the lifting assembly and that the height of the collection holes changes with the lifting assembly, thus providing conditions for collecting gas samples at different heights.

[0059] More specifically, the mixing device mounted on the support includes a mixing chamber and a mixing fan. The mixing chamber has a mixing cavity and several first air inlets and a first exhaust port connecting to the mixing cavity, providing a large number of air inlets to meet the connection requirements of several sampling holes. Furthermore, the several first air inlets are connected to the several sampling holes one by one via pipes, ensuring that each sampling hole has a corresponding first air inlet. This guarantees that the gas sample collected from each sampling hole can smoothly enter the mixing cavity. Simultaneously, the mixing fan is placed inside the mixing cavity, agitating the gas within and ensuring thorough mixing of the gas samples entering from different first air inlets, resulting in better mixing. Additionally, the mixing fan blows air towards the first exhaust port, improving exhaust efficiency when the mixed gas sample is subsequently discharged from the first exhaust port, achieving multi-purpose functionality and increasing utilization. It is worth noting that the acquisition port and the corresponding first air inlet are connected by a flexible hose, which better adapts to the lifting requirements of the lifting assembly. In addition, the hose is set inside the telescopic tube of the lifting assembly, thus concealing the hose, improving aesthetics and protection, and making the structural design more reasonable.

[0060] More specifically, the filter device 1 mounted on the support includes a filter box 11, a primary filter 12, and a secondary filter 13. The filter box 11 has a filter chamber 111, a second air inlet 112, and a second exhaust outlet 113 connected to the filter chamber 111. The second air inlet 112 is connected to the first exhaust outlet, allowing the mixed sample discharged from the mixing chamber to enter the filter box 11 through the second air inlet 112. Simultaneously, the preliminary mixed sample obtained after filtration by the filter box 11 can be discharged through the second exhaust outlet 113. Furthermore, the primary filter 12 and the secondary filter 13 are sequentially arranged within the filter chamber 111 along the direction from the second air inlet 112 to the second exhaust outlet 113. This means the mixed sample entering the filter chamber 111 undergoes two filtrations, effectively removing impurities from the mixed sample and improving the accuracy of the monitoring results. In addition, both the primary filter 12 and the secondary filter 13 are provided with rotating parts. Preferably, the rotating parts are located on the sides of the corresponding primary filter 12 and secondary filter 13. The rotating parts drive the primary filter 12 and secondary filter 13 to rotate in the filter chamber 111, which provides the conditions for the primary filter 12 and secondary filter 13 to be rotated 180° and then cleaned by blowing air in the same direction. That is, the mixing fan in the mixing device can be fully utilized to blow clean air into the filter chamber 111 to clean the primary filter 12 and secondary filter 13. While achieving cleaning, the problem of needing to set up a separate reverse blowing system is avoided, the utilization rate of the structural components in the equipment itself is improved, and the primary filter 12 and secondary filter 13 can be reused multiple times. Meanwhile, a lifting baffle 14 and a cleaning brush 15 are provided between the primary filter 12 and the secondary filter 13. This allows the primary filter 12 and the secondary filter 13 to be separated by the lifting baffle 14 when cleaning the primary filter 12, preventing dust and other impurities generated during the cleaning of the primary filter 12 from entering the secondary filter 13. At this time, the primary filter 12 is rotated 180°, that is, air is blown onto the primary filter 12 in the opposite direction to clean it. At the same time, the cleaning brush 15 is used to scrub the surface of the primary filter 12 to improve the cleaning effect. In addition, a cleaning brush 15 is also provided between the secondary filter 13 and the second exhaust port 113. After the primary filter 12 is cleaned, the lifting baffle 14 is opened. At this time, the primary filter 12, which has been cleaned, flips back to its original state, and the secondary filter 13 flips 180°. Then, the filter box 11 continues to blow air, which can also achieve reverse air blowing on the secondary filter 13, thus satisfying the cleaning of the secondary filter 13. Since the gas passing through the primary filter 12 is clean gas, and the side of the secondary filter 13 with impurities flips to the side away from the primary filter 12, the impurities generated during the cleaning of the secondary filter 13 will not contaminate the primary filter 12.Furthermore, drain ports 114 are provided on the filter box 11, located between the primary filter screen 12 and the lifting baffle 14, and between the secondary filter screen 13 and the second exhaust port 113. That is, when cleaning the primary filter screen 12, the lifting baffle 14 is lowered and the drain port 114 between the primary filter screen 12 and the lifting baffle 14 is opened, so that the impurities generated from cleaning the primary filter screen 12 can crawl out from the drain port 114, avoiding contamination of the secondary filter screen 13. When cleaning the secondary filter screen 13 in the future, it is only necessary to close the drain port 114 between the primary filter screen 12 and the lifting baffle 14 and open the drain port 114 between the secondary filter screen 13 and the second exhaust port 113 to discharge the impurities generated from cleaning the secondary filter screen 13 in a timely manner, avoiding contamination of subsequent pipelines. The structural design is more reasonable.

[0061] More specifically, the dehumidification device 2 mounted on the support includes a dehumidification box 21, a dehumidification conveyor belt 22, a discharge box 23, and a dehumidification driver. The dehumidification box 21 has a dehumidification chamber 213 with a third air inlet 211 and a third exhaust outlet 212. The third air inlet 211 is connected to the second exhaust outlet 113, allowing the primary mixed sample discharged from the second exhaust outlet 113 of the filter box 11 to enter the dehumidification box 21 through the third air inlet 211. Furthermore, the third exhaust outlet 212 is connected to a monitoring device, allowing the final mixed sample obtained after dehumidification and drying to be discharged through the third exhaust outlet 212 and enter the monitoring device. By positioning the dehumidification conveyor belt 22 at both ends of the dehumidification box 21 with one side passing through the dehumidification chamber 213, the position of the dehumidification conveyor belt 22 within the dehumidification box 21 can be changed by rotating the belt, thus facilitating subsequent replacement of the desiccant. Meanwhile, the dehumidifying track 22 is equipped with several discharge boxes 23, each containing desiccant. The desiccant is placed in the discharge boxes 23, and the dehumidifying track 22 moves the desiccant within the dehumidifying chamber 21, facilitating desiccant replacement without shutting down the machine. Furthermore, the dehumidifying track 22 is powered by the dehumidifying drive unit. Notably, the dehumidifying track 22 is mounted on a driving wheel and a driven wheel, with both ends of the track wound around them. The driving wheel is connected to the drive shaft of the dehumidifying drive unit. The driving and driven wheels are located outside the dehumidifying chamber 21 at both ends. One side of each dehumidifying track 22 passes through the dehumidifying chamber 21, allowing for dehumidification on one side of the track while desiccant is replaced on the other. Meanwhile, a flexible sealing strip is provided on the dehumidification box 21 at the part where the dehumidification conveyor 22 passes. The flexible sealing strip abuts against the dehumidification conveyor 22 to seal the part where the dehumidification conveyor 22 passes, preventing external gas from entering the dehumidification box 21 and affecting the gas sample.

[0062] More specifically, the monitoring device mounted on the support includes a monitoring chamber and a carbon dioxide sensor. The monitoring chamber has a fourth air inlet and a fourth air outlet. The fourth air inlet is connected to the third air outlet 212. The final mixed sample, after dehumidification and drying, enters the monitoring chamber through the fourth air inlet. Simultaneously, the carbon dioxide sensor is located inside the monitoring chamber, measuring the carbon dioxide concentration in the final mixed sample entering the chamber. The measured mixed gas sample is then discharged outside the monitoring chamber through the fourth air outlet, completing one monitoring operation.

[0063] More specifically, the filter box 11 has insertion holes 115 that communicate with the filter chamber 111 around the primary filter screen 12 and the secondary filter screen 13. At this time, an insert plate 116 is slidably inserted into each insertion hole 115. Preferably, a sealing component is provided between the insert plate 116 and the corresponding insertion hole 115 to prevent leakage. In addition, one end of the insert plate 116 extends into the filter chamber 111 and a sealing gasket 1161 is provided on the end face. Furthermore, slots 121 corresponding to the insertion holes 115 are provided on the sides of both the primary filter 12 and the secondary filter 13. When the insert plate 116 is inserted into the insertion hole 115, the end of the insert plate 116 inserted into the filter chamber 111 is inserted into the corresponding slot 121 and is pressed against by the sealing gasket 1161. That is, the side of the corresponding primary filter 12 or secondary filter 13 is fixed by the insert plate 116, which improves the structural stability and also achieves the sealing of the connection. When the insert plate 116 is pulled out of the insertion hole 115, the end of the insert plate 116 inserted into the filter chamber 111 is pulled out from the corresponding slot 121, so that the side of the slot 121 is not restricted, thereby giving the primary filter 12 and the secondary filter 13 a sufficiently large flipping space and ensuring the normal flipping of the primary filter 12 and the secondary filter 13.

[0064] More specifically, the cleaning brush 15 installed in the filter box 11 includes a roller brush 151 and a lifting part 152. The lifting part 152 is mounted on the filter box 11, and the roller brush 151 is rotatably mounted on the lifting part 152, allowing the roller brush 151 to move up and down within the filter chamber 111 along with the lifting part 152. One side of the roller brush 151 contacts the surface of the corresponding primary filter 12 or secondary filter 13, enabling the roller brush 151 to thoroughly clean the primary and secondary filters 12 and 13 as it moves up and down within the filter chamber 111, resulting in better cleaning. Simultaneously, the other side of the roller brush 151 of the cleaning brush 15 corresponding to the primary filter 12 also contacts the surface of the lifting baffle 14. Since the lifting baffle 14 unfolds when cleaning the primary filter 12, the cleaning brush 15 also cleans the lifting baffle 14, preventing impurities from adhering to it. It is worth noting that the top and bottom of the filter box 11, and the parts corresponding to the cleaning brush 15, are also provided with clearance chambers that communicate with the filter chamber 111. This allows the roller brush 151 to enter the clearance chamber when it moves up and down, thus avoiding the problem of occupying the filter chamber 111 or affecting the flipping of the primary filter 12 and the secondary filter 13.

[0065] More specifically, the lifting part 152 of the cleaning brush 15 includes a guide groove 1521, a slider, a rack 1522, a gear 1523, and a lifting driver 1524. The guide groove 1521 is arranged vertically, and the slider is slidably placed in the guide groove 1521, allowing the slider to move up and down vertically. Simultaneously, the rotating shaft of the roller brush 151 is mounted on the slider, and a rack 1522 is vertically arranged on the slider. The lower end of the rack 1522 is connected to the slider, allowing the rack 1522 to drive the slider to slide within the guide groove 1521. At the same time, the slider can drive the rotating shaft of the roller brush 151 to move, thus realizing the movement of the roller brush 151 by the rack 1522. At this time, the upper end of the rack 1522 extends out of the filter box 11, the lifting driver 1524 is installed outside the filter box 11, and the gear 1523 is installed on the drive shaft of the lifting driver 1524 and meshes with the rack 1522. That is, the lifting driver 1524 drives the gear 1523 to rotate, and the gear 1523 drives the rack 1522 to move. Thus, the movement of the roller brush 151 is realized through the slider and the guide groove 1521, which meets the usage requirements of the roller brush 151 moving up and down in the filter chamber 111.

[0066] More specifically, the lifting baffle 14 in the filter device 1 includes several plates 141, a pull wire 142, and a locking part 143. The plates 141 are arranged vertically in sequence. The lower end of the upper plate 141 of two adjacent plates 141 is slidably connected to the upper end of the lower plate 141, allowing adjacent plates 141 to slide and overlap, thus satisfying the need to fold or unfold the plates 141. The lower end of the pull wire 142 is connected to the lowermost plate 141, and the upper end of the pull wire 142 extends outside the filter box 11. The pull wire 142 can pull the lowermost plate 141 upwards, thus folding the plates 141. When the pull wire 142 is released, the plates 141 automatically descend under gravity, unfolding the plates 141. Meanwhile, a locking part 143 is provided on the filter box 11. One end of the pull wire 142 that extends out of the filter box 11 is wrapped around the locking part 143 and clamped by the locking part 143. Preferably, the locking part 143 includes a base, a clamping plate and a locking screw. The base is fixed on the filter box 11, the clamping plate is stacked on the base, and the clamping plate is locked on the base by the locking screw. When the pull wire 142 extends out of the filter box 11, one end is wrapped around the locking screw. When the locking screw is tightened, the clamping plate presses the pull wire 142 onto the base, thereby fixing the end of the pull wire 142. This avoids the problem of the pull wire 142 slipping off during use, which would cause the lifting baffle 14 to automatically unfold. The structure has higher reliability.

[0067] Figure 4 for Figure 2 An enlarged view of part A in the image. (See image below.) Figure 2 and Figure 4As shown, a wire passage hole 117 is provided on the filter box 11 at the point where the pull wire 142 passes through, providing a channel for the pull wire 142 to pass through to the outside of the filter box 11. A wire exit sealing assembly 16 is installed inside the wire passage hole 117 to seal the part where the pull wire 142 passes through the filter box 11, preventing leakage. The wire exit sealing assembly 16 includes an annular ring 161 and a compression screw 162. The wire passage hole 117 is a stepped hole, with the smaller diameter end communicating with the filter chamber 111. A step is provided at the end of the wire passage hole 117 near the filter chamber 111. The annular ring 161 is placed inside the wire passage hole 117 and abuts against the step of the stepped hole. A through hole 1621 is provided in the center of the compression screw 162, facilitating the pull wire 142 to pass through the compression screw 162. The thread 162 is threaded to the large-diameter end of the wire hole 117 and presses against the annular ring 161. The upper end of the pull wire 142 passes through the annular ring 161 and the through hole 1621. After the pull wire 142 passes through the annular ring 161 and the through hole 1621 and is locked by the locking part 143, the pressing screw 162 can be turned to press against the annular ring 161, forcing the annular ring 161 to deform and block the inner ring of the annular ring 161 and the through hole 1621 on the pressing screw 162, thereby avoiding leakage problems.

[0068] Figure 5 This is a structural diagram of a feeding box according to a preferred embodiment of the present invention. Figure 3 and Figure 5 As shown, the discharge box 23 mounted on the dehumidifying conveyor belt 22 includes a base box 231 and a flip cover 232. The base box 231 has a discharge cavity 2311 with an opening. The flip cover 232 is positioned at the opening of the discharge cavity 2311, and one side of the flip cover is hinged to one side of the base box 231, allowing the flip cover 232 to open and close the opening of the discharge cavity 2311 by flipping it over. Furthermore, a locking hole 2312 is provided on the other side of the base box 231, and a locking foot 2321 corresponding to the locking hole 2312 is provided on the other side of the flip cover 232. That is, when the flip cover 232 covers the opening of the discharge cavity 2311, the locking foot 2321 on the flip cover 232 can engage with the locking hole 2312, thereby preventing the flip cover 232 from automatically opening during the rotation of the dehumidifying conveyor belt 22. Meanwhile, ventilation holes are provided on the bottom of the box 231 and the flip cover 232. The desiccant is placed in the placement cavity 2311 and covered by the flip cover 232. The ventilation holes facilitate full contact between the gas sample and the desiccant in the placement cavity 2311, thereby improving the dehumidification and drying effect.

[0069] More specifically, the dehumidification device 2 also includes a cover assembly 24. In this case, the cover assembly 24 is set outside the dehumidification box 21 and above the dehumidification conveyor belt 22, so that the discharge box 23 on the dehumidification conveyor belt 22 that does not enter the dehumidification box 21 can cooperate with the cover assembly 24. Since the discharge box 23 that does not enter the dehumidification box 21 needs to be opened to replace the desiccant, after replacing the desiccant, it is not necessary to manually press the locking foot 2321 into the locking hole 2312. The locking foot 2321 can be pressed into the locking hole 2312 through the cover assembly 24, which makes the operation more convenient, time-saving and labor-saving. Furthermore, along the movement direction of the dehumidifying conveyor belt 22, the side where the bottom box 231 and the flip cover 232 are hinged is located in front of the movement direction, while the locking hole 2312 and the locking foot 2321 are located behind the movement direction. This ensures that the end of the flip cover 232 with a larger distance from the bottom box 231 is behind the movement direction of the dehumidifying conveyor belt 22, meaning that the end of the flip cover 232 with a smaller distance from the bottom box 231 can contact the cover fastening assembly 24 first, providing guidance for the movement of the cover fastening assembly 24 on the discharge box 23. At the same time, a pressing plate 2322 is provided in the middle of the flip cover 232, which is aligned with the movement direction of the dehumidifying conveyor belt 22, and the pressing plate 2322 extends to the locking foot 2321. That is, the locking foot 2321 is pressed into the locking hole 2312 by the contact of the cover fastening assembly 24 with the pressing plate 2322, improving the structural strength of the part of the flip cover 232 that contacts the cover fastening assembly 24, making the movement of the cover fastening assembly 24 more stable. Meanwhile, the cover assembly 24 includes a frame 241, a swing rod 242, a pressure roller 243, and a retaining spring 244. The frame 241 is mounted on the dehumidification box 21. A swing rod 242, arranged along the movement direction of the dehumidification conveyor belt 22, is hinged to one side of the frame 241. At this time, a pressure roller 243 is rotatably mounted on the other end of the swing rod 242, so that the pressure roller 243 can swing with the swing rod 242. Meanwhile, a retaining spring 244 is provided between the swing rod 242 and the frame 241. By applying pressure to the swing arm 242 through the clamping spring 244, the pressure roller 243 can press against the discharge box 23. Furthermore, when the dehumidifying conveyor belt 22 moves the discharge box 23, the pressure roller 243 contacts the pressing plate 2322 on the flip cover 232 of each discharge box 23 in sequence. That is, the pressure roller 243 presses the flip cover 232 of the discharge box 23, thereby pressing the locking foot 2321 into the locking hole 2312, thereby closing the opening of the placement cavity 2311 on the bottom box 231 through the flip cover 232.

[0070] The carbon online monitoring method and equipment provided in this embodiment include steps S1 (multi-point sampling), S2 (sample mixing), S3 (sample filtration), S4 (sample drying), S5 (content detection), and S6 (data processing). The equipment includes a support frame, a lifting assembly, a mixing device, a filter device 1, a dehumidification device 2, and a monitoring device. By simultaneously selecting several gas samples at different heights and then introducing them into the mixing chamber of the same mixing device for thorough mixing, and then sequentially filtering the mixed gas samples through the filter device 1 and dehumidifying them through the drying device, impurities and moisture in the gas samples are effectively removed, avoiding interference during monitoring and improving the accuracy of the monitoring results. Furthermore, the use of equipment with a support frame, lifting assembly, mixing device, filter device 1, dehumidification device 2, and monitoring device enhances the convenience of detection and is simple in structure and easy to use.

[0071] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for online carbon monitoring, used in an online carbon monitoring method, wherein the online carbon monitoring method comprises the following steps: Step S1, multi-point sampling; simultaneously collecting several gas samples at different altitudes, and controlling the collection speed and collection time of each gas sample to be exactly the same; Step S2, sample mixing; simultaneously transporting the several gas samples collected in Step S1 to a mixing device for thorough mixing to obtain a mixed sample, ready for subsequent use; Step S3, sample filtration; filtering the mixed sample obtained in Step S2 through a filtration device to remove impurities from the mixed sample, obtaining a preliminary mixed sample; Step S4, sample drying; drying the sample obtained in Step S3... The preliminary mixed sample is passed into a dehumidification device for drying to remove moisture and obtain a final mixed sample; Step S5, content detection; The final mixed sample obtained in step S4 is passed into a monitoring device equipped with a carbon dioxide sensor for content monitoring to obtain carbon dioxide concentration data in the environment; Step S6, data processing; Steps S1-S5 are repeated multiple times to obtain several carbon dioxide concentration data, and the accurate carbon dioxide concentration is obtained by calculating the average value of multiple samples; When collecting the gas sample in step S1, sampling tubes at different heights need to be arranged first, and the sampling should be started after the sampling tubes are arranged and left to stand for 5 minutes; The characteristic is that... include: The support frame is installed in the area to be monitored. A lifting assembly is mounted on a support. The lifting assembly moves vertically up and down. At the same time, the lifting assembly is provided with a number of spaced-apart collection holes along the vertical direction. The distance between two adjacent collection holes gradually increases or decreases as the lifting assembly moves up and down. The mixing device is mounted on the support and includes a mixing chamber and a mixing fan. The mixing chamber has a mixing cavity and a plurality of first air inlets and a first air outlet that connect to the mixing cavity. The plurality of first air inlets are connected to the plurality of collection holes one by one through pipes. The mixing fan is mounted inside the mixing cavity and blows air in the direction of the first air outlet. The filtration device is mounted on the support and includes a filter box, a primary filter, and a secondary filter. The filter box has a filter chamber and a second air inlet and a second exhaust outlet communicating with the filter chamber. The second air inlet communicates with the first exhaust outlet. The primary filter and the secondary filter are arranged sequentially in the filter chamber along the direction from the second air inlet to the second exhaust outlet. Both the primary filter and the secondary filter are provided with a rotating part. A lifting baffle and a cleaning brush are provided between the primary filter and the secondary filter. The cleaning brush is also provided between the secondary filter and the second exhaust outlet. Exhaust outlets are provided on the filter box and located between the primary filter and the lifting baffle, and between the secondary filter and the second exhaust outlet. The dehumidification device is mounted on the support frame and includes a dehumidification box, a dehumidification conveyor belt, a discharge box, and a dehumidification driver. The dehumidification box has a dehumidification chamber with a third air inlet and a third exhaust outlet. The third air inlet is connected to the second exhaust outlet, and the third exhaust outlet is connected to the monitoring device. The dehumidification conveyor belt is located at both ends of the dehumidification box, with one side passing through the dehumidification chamber. The dehumidification conveyor belt is equipped with several discharge boxes, each containing a desiccant. The dehumidification conveyor belt is poweredly connected to the dehumidification driver. The monitoring device is mounted on the bracket and includes a monitoring box and a carbon dioxide sensor. The monitoring box has a fourth air inlet and a fourth air outlet, the fourth air inlet being connected to the third air outlet, and the carbon dioxide sensor being mounted inside the monitoring box.

2. The device for online carbon monitoring according to claim 1, characterized in that, The filter box has insertion holes that communicate with the filter chamber around the primary filter and the secondary filter. An insert plate is slidably inserted into each insertion hole. One end of the insert plate extends into the filter chamber and a sealing gasket is provided on its end face. Furthermore, the primary filter and the secondary filter have slots corresponding to the insertion holes on their sides. When the insert plate is inserted or removed from the insertion hole, the end of the insert plate inserted into the filter chamber is inserted into the corresponding slot and is pressed against by the sealing gasket or removed from the corresponding slot.

3. The device for online carbon monitoring according to claim 1, characterized in that, The cleaning brush includes a roller brush and a lifting part. The lifting part is disposed on the filter box. The roller brush is rotatably mounted on the lifting part, and one side of the roller brush is in contact with the surface of the corresponding primary filter or the secondary filter. At the same time, the other side of the roller brush of the cleaning brush corresponding to the primary filter is in contact with the surface of the lifting baffle.

4. The device for online carbon monitoring according to claim 3, characterized in that, The lifting unit includes a guide groove, a slider, a rack, a gear, and a lifting driver. The guide groove is arranged vertically, the slider slides in the guide groove, the rotating shaft of the roller brush is mounted on the slider, and a rack is arranged vertically on the slider. The lower end of the rack is connected to the slider, and the upper end of the rack extends outside the filter box. The lifting driver is mounted outside the filter box, and the gear is mounted on the drive shaft of the lifting driver and meshes with the rack.

5. The device for online carbon monitoring according to claim 4, characterized in that, The lifting baffle includes several plates, a pull wire, and a locking part. The plates are arranged vertically in sequence. The lower end of the upper plate of two adjacent plates is slidably connected to the upper end of the lower plate. At the same time, the lower end of the pull wire is connected to the lowermost plate, and the upper end of the pull wire extends out of the filter box. The filter box is provided with a locking part, and the end of the pull wire extending out of the filter box is wrapped around the locking part and clamped by the locking part.

6. The device for online carbon monitoring according to claim 5, characterized in that, A wire passage hole is provided on the filter box at the point where the pull wire passes through. A wire exit sealing assembly is provided in the wire passage hole. The wire exit sealing assembly includes an annular ring and a compression screw. The wire passage hole is a stepped hole, and its small diameter end is connected to the filter chamber. The annular ring is placed in the wire passage hole and abuts against the step. A through hole is provided in the center of the compression screw. The compression screw is threaded to the large diameter end of the wire passage hole and compresses the annular ring. The upper end of the pull wire passes through the annular ring and the through hole.

7. The device for online carbon monitoring according to any one of claims 1-6, characterized in that, The material container includes a base box and a flip cover. The base box has a placement cavity with an opening. The flip cover is located at the opening of the placement cavity and is hinged to one side of the base box. A locking hole is provided on the other side of the base box, and a locking foot corresponding to the locking hole is provided on the other side of the flip cover. At the same time, ventilation holes are provided on the bottom of the base box and the flip cover. The desiccant is placed in the placement cavity and covered by the flip cover.

8. The device for online carbon monitoring according to claim 7, characterized in that, The dehumidification device also includes a cover assembly, which is disposed outside the dehumidification box and above the dehumidification conveyor belt. Along the movement direction of the dehumidification conveyor belt, the side where the bottom box and the flip cover are hinged is located in front of the movement direction, and the locking hole and the locking foot are located behind the movement direction. At the same time, a pressing plate is provided in the middle of the flip cover, which is consistent with the movement direction of the dehumidification conveyor belt, and the pressing plate extends to the locking foot. The cover assembly includes a frame, a swing rod, a pressure roller, and a clamping spring. The frame is mounted on the dehumidification box. A swing rod arranged along the movement direction of the dehumidification conveyor belt is hinged to one side of the frame. A pressure roller is rotatably mounted on the other end of the swing rod. At the same time, the clamping spring is provided between the swing rod and the frame. When the dehumidification conveyor belt drives the material box to move, the pressure roller contacts the pressing plate on the flip cover of each material box in sequence.

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