Waste gas monitoring control device

Abstract

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a waste gas monitoring control device which comprises a gas inlet pipe, a pretreatment cavity installed on the outer wall of the gas inlet pipe, a filter plate fixedly connected in the pretreatment cavity, a cleaning brush assembled on the top side of the filter plate in a sliding fit mode, a sliding rod fixedly connected to one side of the cleaning brush, and a sliding groove fixedly connected to one end of the sliding rod. A sliding block is slidably installed in the sliding groove, a connecting rod is installed at the output end of the driving motor, and one end of the connecting rod is installed on one side of the sliding block through a pin shaft in a matched mode. A waste gas sample is sucked into a gas inlet pipe, a filter plate preliminarily filters waste gas and removes large-particle impurities in the waste gas, meanwhile, a driving motor is started, the driving motor drives a sliding block to slide in a sliding groove through a connecting rod and a pin shaft, then a sliding rod and a cleaning brush are driven to move along one side of a box body, and the cleaning brush slides on the top side of the filter plate; accumulated impurities are swept down, the cleaning and filtering effects of the filtering plate are kept, and smooth gas circulation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas monitoring and control device. Background Art

[0002] Waste gas refers to toxic and harmful gases discharged by humans in the process of production and life. In the process of industrial production, chemical plants emit harmful chemical gases such as sulfur dioxide. The waste gas contains a large amount of pollutants that are harmful to human health and the environment. Therefore, a waste gas monitoring and control device is needed.

[0003] A Chinese patent with announcement number CN215489126U discloses a fixed pollution source exhaust gas monitoring gas path control system, including a buffer box, the left end of the buffer box is connected to the air inlet pipe, the right end of the buffer box is connected to the air outlet pipe, including buffer plates, a first gap is set between the buffer plates, and a second gap is left between the end of the buffer plate and the corresponding inner wall of the buffer box cavity. Staggered buffer plates are arranged in the buffer box, so that the airflow hits the buffer plate, changes direction, mixes the fast and slow airflows, and improves the measurement accuracy.

[0004] However, the above-mentioned exhaust gas monitoring and control device still has some problems. In practical applications, it is usually necessary to pre-treat the exhaust gas through a filter plate. The intercepted impurities will remain on the filter plate, causing the filter plate to be quickly blocked, resulting in poor exhaust gas circulation, which will affect the efficiency of exhaust gas monitoring and control. Therefore, an exhaust gas monitoring and control device is proposed to address the above-mentioned problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the background technology, the utility model proposes an exhaust gas monitoring and control device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an exhaust gas monitoring and control device described in the utility model comprises a box body, the top side of the box body is connected to an air intake pipe, the outer wall of the air intake pipe is installed with a pretreatment chamber, the interior of the pretreatment chamber is fixedly connected with a filter plate, the top side of the filter plate is slidably fitted with a cleaning brush, one side of the cleaning brush is fixedly connected with a sliding rod, one end of the sliding rod slides through and extends to the outside of the pretreatment chamber and is fixedly connected with a sliding groove, a sliding block is slidably installed inside the sliding groove, a support plate is installed on one side of the pretreatment chamber, a driving motor is installed on one side of the support plate, a connecting rod is installed on the output end of the driving motor, and one end of the connecting rod is installed on one side of the sliding block through a pin shaft, so as to realize automatic cleaning of dust accumulated on the filter plate, maintain the filtering effect, and ensure smooth gas circulation.

[0007] Preferably, a monitoring chamber is installed inside the top side of the box, one end of the air inlet pipe passes through the box and is connected to the monitoring chamber, an analyzer is installed on the inner wall of the bottom side of the box, a probe is installed inside the analyzer, one end of the probe extends through and into the interior of the monitoring chamber, so as to facilitate accurate monitoring of the exhaust gas.

[0008] Preferably, a filter box is installed on one side of the box body, and a connecting pipe is connected to one side of the monitoring chamber. One end of the connecting pipe passes through the box body and is connected to the filter box. A filter net is installed inside the filter box, and an exhaust pipe is connected to the top side of the filter box, so that the filtered exhaust gas samples are discharged into the external environment, reducing environmental pollution.

[0009] Preferably, a support column is fixedly connected to the inner wall of the air intake pipe, a negative pressure motor is installed at one end of the support column, and three fan blades are fixedly connected to the output end of the negative pressure motor at equal distances to suck the exhaust gas sample into the air intake pipe, ensuring that the exhaust gas can smoothly enter the monitoring device.

[0010] Preferably, a movable door is installed on one side of the box body through a hinge, and a fixing buckle is fixed at one edge of the movable door to facilitate staff to inspect and maintain the inside of the device.

[0011] Preferably, a control panel is installed on one side of the box, and the control panel is used for operation control and signal transmission of electrical components inside the device, thereby realizing centralized control of the electrical components inside the device and improving the convenience of device operation.

[0012] The utility model is beneficial in that:

[0013] 1. The waste gas sample of the utility model is sucked into the air inlet pipe, and the filter plate performs preliminary filtering on the waste gas to remove large particles of impurities in the waste gas. At the same time, the drive motor is started, and the drive motor drives the slider to slide in the slide groove through the connecting rod and the pin shaft, and then drives the slide bar and the cleaning brush to move along one side of the box body. The cleaning brush slides on the top side of the filter plate to sweep down the accumulated impurities, keep the filter plate clean and the filtering effect, and ensure smooth gas circulation;

[0014] 2. The analyzer of the utility model monitors the exhaust gas composition in the monitoring chamber in real time through a probe, and transmits the monitoring data to the control panel for display and analysis. After the detection, the exhaust gas enters the filter box through the connecting pipe, and the filter screen performs secondary filtering on the exhaust gas to further remove impurities and pollutants in the exhaust gas, and finally discharges it into the external environment through the exhaust pipe, thereby reducing the pollution of the exhaust gas to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the structure of the medium axis side view of the utility model;

[0017] Figure 2 A schematic diagram of the cleaning component structure;

[0018] Figure 3 This is a schematic diagram of the structure of the monitoring and control components inside the box;

[0019] Figure 4 It is a schematic diagram of the exhaust component structure.

[0020] In the figure: 2. Box body; 3. Inlet pipe; 4. Pretreatment chamber; 5. Filter plate; 6. Cleaning brush; 7. Slide rod; 8. Slide groove; 9. Slider; 10. Support plate; 11. Drive motor; 12. Connecting rod; 13. Monitoring chamber; 14. Analyzer; 15. Probe; 16. Filter box; 17. Connecting pipe; 18. Filter net; 19. Exhaust pipe; 20. Support column; 21. Negative pressure motor; 22. Fan blade; 23. Movable door; 24. Fixing buckle; 25. Control panel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4As shown, an exhaust gas monitoring and control device comprises a box body 2, the top side of the box body 2 is connected to an air intake pipe 3, a pre-treatment chamber 4 is installed on the outer wall of the air intake pipe 3, a filter plate 5 is fixedly connected to the inside of the pre-treatment chamber 4, a cleaning brush 6 is slidably fitted on the top side of the filter plate 5, a sliding rod 7 is fixedly connected to one side of the cleaning brush 6, one end of the sliding rod 7 slides through and extends to the outside of the pre-treatment chamber 4 and is fixedly connected to a slide groove 8, a slider 9 is slidably installed inside the slide groove 8, a support plate 10 is installed on one side of the pre-treatment chamber 4, a drive motor 11 is installed on one side of the support plate 10, a connecting rod 12 is installed on the output end of the drive motor 11, and one end of the connecting rod 12 is installed on one side of the slider 9 through a pin shaft;

[0023] A support column 20 is fixedly connected to the inner wall of the air inlet pipe 3, a negative pressure motor 21 is installed at one end of the support column 20, and three fan blades 22 are fixedly connected to the output end of the negative pressure motor 21 at equal distances;

[0024] A control panel 25 is installed on one side of the box body 2, and the control panel 25 is used for operating and controlling the electrical components inside the device and transmitting signals; when working, in actual applications, it is usually necessary to pre-treat the exhaust gas through the filter plate 5, and the intercepted impurities will remain on the filter plate 5, causing the filter plate 5 to be blocked quickly, resulting in poor exhaust gas circulation, which will affect the efficiency of exhaust gas monitoring and control. The negative pressure motor 21 is started, and its output end drives the three fan blades 22 to rotate, generating negative pressure, so that the exhaust gas sample is smoothly sucked into the intake air Tube 3, and the exhaust gas is initially filtered through the filter plate 5 in the pretreatment chamber 4, and the large particles of impurities in the exhaust gas are removed before entering the monitoring chamber 13. When the impurities accumulated on the filter plate 5 reach a certain level, the drive motor 11 is started, and the drive motor 11 drives the slider 9 to slide in the slide groove 8 through the connecting rod 12 and the pin shaft, and then drives the slider 7 and the cleaning brush 6 to move along one side of the box body 2. The cleaning brush 6 slides on the top side of the filter plate 5 to sweep down the accumulated impurities, keep the filter plate 5 clean and the filtering effect, and ensure smooth gas circulation.

[0025] See also Figure 1 , 3As shown, a monitoring chamber 13 is installed inside the top side of the box body 2, one end of the air inlet pipe 3 penetrates the box body 2 and is connected to the monitoring chamber 13, an analyzer 14 is installed on the inner wall of the bottom side of the box body 2, and a probe 15 is installed inside the analyzer 14, one end of the probe 15 penetrates and extends to the inside of the monitoring chamber 13, a filter box 16 is installed on one side of the box body 2, a connecting pipe 17 is connected to one side of the monitoring chamber 13, one end of the connecting pipe 17 penetrates the box body 2 and is connected to the filter box 16, a filter screen 18 is installed inside the filter box 16, and an air outlet pipe 19 is connected to the top side of the filter box 16, a movable door 23 is installed on one side of the box body 2 through a hinge, and a fixing buckle 24 is fixed to one side edge of the movable door 23; when working, in the industrial production process, chemical plants emit carbon dioxide Sulfur dioxide is a harmful chemical gas. The waste gas contains a large amount of pollutants that are harmful to human health and the environment. Therefore, a waste gas monitoring and control device is needed. After the waste gas enters the monitoring chamber 13, the analyzer 14 starts working. The analyzer 14 monitors the waste gas components in the monitoring chamber 13 in real time through the probe 15, and transmits the monitoring data to the control panel 25 for display and analysis. After the detection, the waste gas enters the filter box 16 through the connecting pipe 17. The filter net 18 filters the waste gas for the second time to further remove impurities and pollutants in the waste gas. Finally, it is discharged into the external environment through the outlet pipe 19 to reduce the pollution of the waste gas to the environment. Finally, the staff can enter the box 2 through the fixing buckle 24 to open the movable door 23 to maintain and repair the device. The model of the analyzer 14 is THA100S sulfur dioxide analyzer 14.

[0026] Working principle: the negative pressure motor 21 is started, and its output end drives the three fan blades 22 to rotate, generating negative pressure, so that the exhaust gas sample is smoothly sucked into the intake pipe 3, and passes through the filter plate 5 in the pretreatment chamber 4 to perform preliminary filtration on the exhaust gas, removes large particles of impurities in the exhaust gas, and then enters the monitoring chamber 13. When the impurities accumulated on the filter plate 5 reach a certain level, the drive motor 11 is started, and the drive motor 11 drives the slider 9 to slide in the slide groove 8 through the connecting rod 12 and the pin shaft, and then drives the slider 7 and the cleaning brush 6 to move along one side of the box body 2. The cleaning brush 6 slides on the top side of the filter plate 5 to sweep down the accumulated impurities, keep the filter plate 5 clean and the filtering effect, and ensure smooth gas circulation;

[0027] After the exhaust gas enters the monitoring chamber 13, the analyzer 14 starts working. The analyzer 14 monitors the exhaust gas composition in the monitoring chamber 13 in real time through the probe 15, and transmits the monitoring data to the control panel 25 for display and analysis. After the detection, the exhaust gas enters the filter box 16 through the connecting pipe 17. The filter net 18 performs secondary filtering on the exhaust gas to further remove impurities and pollutants in the exhaust gas. Finally, it is discharged into the external environment through the exhaust pipe 19 to reduce the pollution of the exhaust gas to the environment. Finally, the staff can enter the interior of the box 2 through the fixing buckle 24 to open the movable door 23 to maintain and repair the device.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An exhaust gas monitoring and control device, characterized in that: The invention comprises a box body (2), the top side of which is connected to an air inlet pipe (3), the outer wall of which is installed a pretreatment chamber (4), the interior of which is fixedly connected to a filter plate (5), the top side of which is slidably fitted with a cleaning brush (6), one side of which is fixedly connected to a slide rod (7), one end of which slide rod (7) slides through and extends to the outside of the pretreatment chamber (4) and is fixedly connected to a slide groove (8), a slider (9) is slidably installed inside the slide groove (8), a support plate (10) is installed on one side of the pretreatment chamber (4), a drive motor (11) is installed on one side of the support plate (10), a connecting rod (12) is installed on the output end of the drive motor (11), one end of which is installed on one side of the slider (9) through a pin shaft.

2. An exhaust gas monitoring and control device according to claim 1, characterized in that: A monitoring chamber (13) is installed inside the top side of the box (2); one end of the air inlet pipe (3) passes through the box (2) and is connected to the monitoring chamber (13); an analyzer (14) is installed on the inner wall of the bottom side of the box (2); a probe (15) is installed inside the analyzer (14); one end of the probe (15) passes through and extends into the interior of the monitoring chamber (13).

3. An exhaust gas monitoring and control device according to claim 2, characterized in that: A filter box (16) is installed on one side of the box body (2), a connecting pipe (17) is connected to one side of the monitoring chamber (13), one end of the connecting pipe (17) passes through the box body (2) and is connected to the filter box (16), a filter screen (18) is installed inside the filter box (16), and an air outlet pipe (19) is connected to the top side of the filter box (16).

4. The exhaust gas monitoring and control device according to claim 2, characterized in that: A support column (20) is fixedly connected to the inner wall of the air inlet pipe (3), a negative pressure motor (21) is installed at one end of the support column (20), and three fan blades (22) are fixedly connected to the output end of the negative pressure motor (21) at equal distances.

5. The exhaust gas monitoring and control device according to claim 4, characterized in that: A movable door (23) is installed on one side of the box body (2) via a hinge, and a fixing buckle (24) is fixed at one side edge of the movable door (23).

6. An exhaust gas monitoring and control device according to claim 5, characterized in that: A control panel (25) is installed on one side of the box (2), and the control panel (25) is used for operating and controlling electrical components inside the device and transmitting signals.

Images