Sealed sampling equipment for waste gas monitoring

Abstract

The utility model discloses a sealed sampling device for waste gas monitoring, which comprises a storage box, a control cabinet arranged at the top of the front side of the storage box, a control panel arranged on one side of the control cabinet, a sucking pump arranged at the bottom of the front side of the storage box, a gas quality detector arranged on the control cabinet and extending to the outside, and a first sucking pipe arranged on the sucking pump and extending to the outside. The air pump is provided with an air outlet pipe extending into the storage box, the air outlet pipe extends into the storage box and is provided with an air distributing pipe, a plurality of air guide pipes are arranged at the bottom of the air distributing pipe, a sealed storage tank is arranged at the bottoms of the air guide pipes, and an exhaust pipe extending to the outer bottom is arranged at the bottom of the sealed storage tank. Compared with the prior art, the waste gas sampling device has the advantages that the detector is matched with the sucking pump, so that waste gas can be quickly sucked and sampled when the waste gas is abnormal, and meanwhile, the sealed storage tank can be cleaned through the filter box on one side after sampling.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas monitoring, in particular to a sealed sampling device for waste gas monitoring. Background Art

[0002] Waste gas refers to toxic and harmful gases discharged by humans in the process of production and life, especially from chemical plants, steel mills, pharmaceutical plants, coking plants and refineries. The waste gas emitted has a strong odor, seriously polluting the environment and affecting human health.

[0003] When exhaust gas is discharged, exhaust gas anomalies often occur. When the anomalies occur, exhaust gas sampling and monitoring are often required. The sampling method in the prior art is to perform manual sampling when the exhaust gas is abnormal. Manual sampling has a lag and exhaust gas sampling operations cannot be performed in a timely manner. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a sealed sampling device for exhaust gas monitoring in view of the deficiencies in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a sealed sampling device for exhaust gas monitoring, including a storage box, a control cabinet is connected to the top of the front side of the storage box, a control panel is connected to one side of the control cabinet, an air pump is connected to the bottom of the front side of the storage box, the control cabinet is connected to a gas quality detector extending to the outside, the air pump is connected to a first air suction pipe extending to the outside, the air pump is connected to an air outlet pipe extending into the storage box, the air outlet pipe extends into the storage box and is connected to an air distribution pipe, a plurality of air guide pipes are connected to the bottom of the air distribution pipes, a sealed storage tank is connected to the bottom of the sealed storage tank, and an exhaust pipe extending to the outer bottom is connected to the bottom of the sealed storage tank.

[0006] Furthermore, an air quality sensor and a pressure sensor are connected inside the sealed storage tank, so as to facilitate the detection of the pressure inside the sealed storage tank and the rough detection of the air quality.

[0007] Furthermore, the air guide pipe and the exhaust pipe are respectively connected with a second electric control valve and a control valve, so as to facilitate the sealing of the sealed storage tank and the discharge of waste gas from the stored samples.

[0008] Furthermore, a filter box is connected to one side of the vacuum pump, and the vacuum pump is connected to a second vacuum pipe extending into the filter box, and the filter box is connected to an air intake pipe extending to the outside. The first vacuum pipe and the air intake pipe are respectively connected to a first electrically controlled valve and a third electrically controlled valve, and the second vacuum pipe is connected to a fourth electrically controlled valve to facilitate control of the vacuum direction.

[0009] Furthermore, a sealing partition and an activated carbon adsorption layer are sequentially connected in the filter box from the air inlet pipe to the second air exhaust pipe, a filter cloth cover cylinder connecting the two sides is connected to the sealing partition, and supporting mesh plates are connected to the two sides of the activated carbon adsorption layer to facilitate filtering and adsorbing the gas.

[0010] The advantages of the sealed sampling equipment for exhaust gas monitoring of the utility model compared with the prior art are: the utility model can quickly extract exhaust gas samples when the exhaust gas is abnormal through the detector and the vacuum pump, and at the same time, the sealed storage tank can be cleaned after sampling through the filter box on one side. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a structural schematic diagram of a sealed sampling device for exhaust gas monitoring.

[0012] Figure 2 The utility model is a schematic diagram of the cross-sectional structure of a storage box of a sealed sampling device for exhaust gas monitoring.

[0013] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a filter box of a sealed sampling device for exhaust gas monitoring.

[0014] As shown in the figure: 1. Storage box; 2. Control cabinet; 3. Gas quality detector; 4. Vacuum pump; 5. First vacuum pipe; 6. Exhaust pipe; 7. First electric-controlled valve; 8. Gas distribution pipe; 9. Air guide pipe; 10. Sealed storage tank; 11. Exhaust pipe; 12. Air quality sensor; 13. Pressure sensor; 14. Second electric-controlled valve; 15. Control valve; 16. Filter box; 17. Second vacuum pipe; 18. Inlet pipe; 19. Third electric-controlled valve; 20. Control panel; 21. Sealing partition; 22. Filter cloth cover tube; 23. Activated carbon adsorption layer; 24. Support mesh plate; 25. Fourth electric-controlled valve. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] Combined with Figure 1-3A sealed sampling device for exhaust gas monitoring comprises a storage box 1, a control cabinet 2 is connected to the top of the front side of the storage box 1, a control panel 20 is connected to one side of the control cabinet 2, an air pump 4 is connected to the bottom of the front side of the storage box 1, a gas quality detector 3 extending to the outside is connected to the air pump 4, a first air extraction pipe 5 extending to the outside is connected to the air pump 4, the gas quality detector 3 and the first air extraction pipe 5 are generally arranged in the exhaust gas pipeline or the place where the exhaust gas gathers, so that the exhaust gas and the sampling operation can be monitored in real time, the air pump 4 is connected to an outlet pipe 6 extending into the storage box 1, and the outlet pipe 6 extends to the storage box 1. An air distribution pipe 8 is connected inside the storage box 1, and a plurality of air guide pipes 9 are connected at the bottom of the air distribution pipe 8. A sealed storage tank 10 is connected at the bottom of the air guide pipe 9. An air quality sensor 12 and a pressure sensor 13 are connected inside the sealed storage tank 10. An exhaust pipe 11 extending to the outer bottom is connected at the bottom of the sealed storage tank 10. A second electric control valve 14 and a control valve 15 are respectively connected to the air guide pipe 9 and the exhaust pipe 11. When it is necessary to extract samples, the second electric control valve 14 of the corresponding empty sealed storage tank 10 is started, and a certain amount of exhaust gas is extracted by a vacuum pump. Then the control valve 15 can be opened by the staff to take out the sample.

[0017] A filter box 16 is connected to one side of the air pump 4, and a second air extraction pipe 17 extending into the filter box 16 is connected to the air pump 4. The filter box 16 is connected to an air intake pipe 18 extending to the outside. The air intake pipe 18 needs to extend to the outside, that is, a place with fresh air. The first air extraction pipe 5 and the air intake pipe 18 are respectively connected to a first electric control valve 7 and a third electric control valve 19. The second air extraction pipe 17 is connected to a fourth electric control valve 25. The filter box 16 has a second air extraction pipe 17 extending from the air intake pipe 18 to the second air extraction pipe 1 7 is connected in sequence with a sealing partition 21 and an activated carbon adsorption layer 23, the sealing partition 21 is connected with a filter cloth cover tube 22 connecting the two sides, and the activated carbon adsorption layer 23 is connected with supporting mesh plates 24 on both sides. After taking out the exhaust gas sample, start the vacuum pump 4, the fourth electric-controlled valve 25 and the third electric-controlled valve 19, and at the same time, close the first electric-controlled valve 7 to extract the filtered gas, and clean the sealed storage tank 10. After cleaning, close the second electric-controlled valve 14 and the control valve 15 to ensure that the next extraction of exhaust gas is not affected.

[0018] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A sealed sampling device for exhaust gas monitoring, comprising a storage box (1), characterized in that: The storage box (1) is connected to a control cabinet (2) at the top of the front side, and a control panel (20) is connected to one side of the control cabinet (2). The storage box (1) is connected to an air pump (4) at the bottom of the front side, and the control cabinet (2) is connected to a gas quality detector (3) extending to the outside. The air pump (4) is connected to a first air suction pipe (5) extending to the outside. The air pump (4) is connected to an air outlet pipe (6) extending into the storage box (1). The air outlet pipe (6) extends into the storage box (1) and is connected to an air distribution pipe (8). The bottom of the air distribution pipe (8) is connected to a plurality of air guide pipes (9). The bottom of the air guide pipe (9) is connected to a sealed storage tank (10). The bottom of the sealed storage tank (10) is connected to an exhaust pipe (11) extending to the outer bottom.

2. A sealed sampling device for exhaust gas monitoring according to claim 1, characterized in that: The sealed storage tank (10) is internally connected with an air quality sensor (12) and a pressure sensor (13).

3. A sealed sampling device for exhaust gas monitoring according to claim 1, characterized in that: The air guide pipe (9) and the exhaust pipe (11) are respectively connected to a second electric control valve (14) and a control valve (15).

4. The sealed sampling device for exhaust gas monitoring according to claim 1 is characterized in that: A filter box (16) is connected to one side of the vacuum pump (4), the vacuum pump (4) is connected to a second vacuum pipe (17) extending into the filter box (16), the filter box (16) is connected to an air intake pipe (18) extending to the outside, the first vacuum pipe (5) and the air intake pipe (18) are respectively connected to a first electrically controlled valve (7) and a third electrically controlled valve (19), and the second vacuum pipe (17) is connected to a fourth electrically controlled valve (25).

5. A sealed sampling device for exhaust gas monitoring according to claim 4, characterized in that: A sealing baffle (21) and an activated carbon adsorption layer (23) are sequentially connected in the direction from the air inlet pipe (18) to the second air exhaust pipe (17) in the filter box (16); a filter cloth cover cylinder (22) communicating with both sides is connected to the sealing baffle (21); and supporting mesh plates (24) are connected to both sides of the activated carbon adsorption layer (23).

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