Chemical reaction waste gas detection device

Abstract

The utility model discloses a chemical reaction waste gas detection device, which particularly relates to the technical field of waste gas detection and comprises a shell, a plurality of supporting legs fixedly connected to the bottom of the shell, a handle fixedly connected to the top of the shell, two gas inlet covers fixedly connected to one side of the shell, and two gas outlet covers fixedly connected to the other side of the shell. Two collecting mechanisms are arranged on one side of the air inlet cover; the collecting mechanism comprises a pipeline fan, the air outlet end of the pipeline fan communicates with one side of the air inlet cover, and the air inlet end of the pipeline fan is fixedly connected with a first air inlet pipe. Stable air suction is achieved through deflection matching of the two air inlet pipes and the clamping blocks, and heavy metal steam and sulfur dioxide gas are guided and gathered through the descending air channel and the ascending air channel respectively, so that the detection accuracy is improved; by adopting the two gas outlet pipes, the gas storage box and the pressure relief pipe which are reversely arranged, the heavy metal steam and the sulfur dioxide gas in the waste gas are stably and efficiently collected, and the waste gas collection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas detection technology, and more specifically, to a chemical reaction waste gas detection device. Background Technology

[0002] Chemical waste gas refers to the toxic and harmful gases discharged from chemical plants during chemical production. The purification and treatment of industrial waste gas can be roughly divided into three important stages. The steps are from waste gas collection, to waste gas treatment equipment and process purification, and then to end-of-pipe gas detection to meet the standards before being discharged into the atmosphere through the chimney. When detecting chemical waste gas, it is necessary to use a chemical plant waste gas detection collection device to collect the waste gas and then conduct the detection.

[0003] Existing collection boxes cannot meet the needs of use in different situations and have low practicality. At the same time, the above-mentioned patented technology solutions cannot detect the sealing of the collection box. If a leak occurs, the user will not know in time, which poses a high safety hazard.

[0004] A search revealed a Chinese patent with publication number CN222439217U that discloses a collection device for detecting waste gas in a chemical plant. This utility model, through its pressure monitoring mechanism, can meet the usage requirements under different conditions, making it highly practical. At the same time, it can also detect the sealing condition, allowing users to be aware of leaks immediately and improving safety.

[0005] However, in actual use, when the above-mentioned collection device is used to collect and detect light waste gases such as sulfur dioxide and heavy waste gases such as heavy metal vapors, the heavy metal vapors will cover the sulfur dioxide and hinder its natural diffusion path, resulting in a decrease in detection efficiency and accuracy due to the mixing of heavy metal vapors and sulfur dioxide. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a chemical reaction waste gas detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A chemical reaction waste gas detection device includes a housing. Multiple legs are fixedly connected to the bottom of the housing, and a handle is fixedly connected to the top of the housing. Two air inlet hoods are fixedly connected to one side of the housing, and two air outlet hoods are fixedly connected to the other side of the housing. Two collection mechanisms are provided on one side of each air inlet hood. Each collection mechanism includes a duct fan. The air outlet of the duct fan is connected to one side of the air inlet hood. An air inlet pipe is fixedly connected to the air inlet of the duct fan. Multiple slots are provided on the outer side of the air inlet pipe. An air inlet pipe 2 is rotatably connected to the outer side of the air inlet pipe 1. Two outer cylinders are fixedly connected to the outer side of the air inlet pipe 2. Springs are fixedly connected to the inner side of each outer cylinder. A locking block is fixedly connected to the bottom of each spring. The outer side of the locking block is connected to the inner side of the outer cylinder. The system features a side-sliding connection. One end of the second air intake pipe is snapped with an air intake plate. A filter screen is fixedly connected to one side of the air intake plate. The inner side of the outer casing is provided with a descending air duct and an ascending air duct. The top of the descending air duct is connected to one side of the air intake hood, and the bottom of the descending air duct is connected to one side of the air outlet hood. The bottom of the ascending air duct is connected to one side of the air intake hood, and the top of the ascending air duct is connected to one side of the air outlet hood. Two cover plates are snapped onto the outer side of the outer casing. An electrochemical gas sensor is fixedly connected to the outer side of the cover plate. An intake pipe is fixedly connected to the air inlet end of the electrochemical gas sensor. One end of the intake pipe passes through the inner side of the cover plate and extends into the interior of the outer casing. Two bolts are rotatably connected to the outer side of the cover plate. Two storage mechanisms are provided on the outer side of the outer casing.

[0009] By adopting the above technical solution: the orientation of the clamp can be adjusted by using the rotation of the two air inlet pipes and the clamp, and the heavy metal vapor and sulfur dioxide gas can be accumulated and flowed slowly inside the downward and upward air ducts, so that the exhaust gas can be collected and detected by the electrochemical gas sensor and the intake pipe.

[0010] As a further description of the above technical solution: the storage mechanism includes an exhaust pipe, a gas storage box is fixedly connected to the bottom of the exhaust pipe, one side of the gas storage box is fixedly connected to the outer side of the outer shell, a cover plate two is hinged to the outer side of the gas storage box, a buckle is fixedly connected to the outer side of the cover plate two, the outer side of the buckle is engaged with the outer side of the exhaust pipe, a pressure relief pipe is connected to the outer side of the gas storage box, a butterfly valve is provided on the outer side of the pressure relief pipe, and a filter screen two is fixedly connected to the top of the pressure relief pipe.

[0011] By adopting the above technical solution, the two gas storage boxes can be used to transport and collect heavy metal vapor and sulfur dioxide gas separately.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By setting up a collection mechanism, compared with the existing technology, the deflection of two air inlet pipes and the card block enables stable intake of exhaust gas. The downward and upward air ducts guide and collect heavy metal vapors and sulfur dioxide gas, so as to accurately detect exhaust gas and improve the accuracy of exhaust gas detection.

[0014] By setting up a storage mechanism, compared with existing technologies, the reverse arrangement of two exhaust pipes, an air storage box, and a pressure relief pipe enables the stable collection of heavy metal vapors and sulfur dioxide gas in the exhaust gas, thereby improving the efficiency of exhaust gas collection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the left side structure of this utility model.

[0017] Figure 3 This is a partial schematic diagram of the connection between the outer shell and the rising channel of this utility model.

[0018] Figure 4 This is a partial schematic diagram of the connection between the outer shell and the descending air duct of this utility model.

[0019] Figure 5 This is a partial schematic diagram of the connection between the first and second air intake pipes of this utility model.

[0020] Figure 6 This is a partial schematic diagram of the cover plate and bolt connection of this utility model.

[0021] Figure 7 This is a partial schematic diagram of the connection between the air outlet pipe and the air storage box of this utility model.

[0022] The attached diagram is labeled as follows: 1. Outer shell; 2. Support leg; 3. Handle; 4. Air intake hood; 5. Air exhaust hood; 6. Duct fan; 7. Air intake pipe one; 8. Slot; 9. Air intake pipe two; 10. Outer cylinder; 11. Spring; 12. Locking block; 13. Air intake plate; 14. Filter screen one; 15. Downward air duct; 16. Cover plate one; 17. Electrochemical gas sensor; 18. Suction pipe; 19. Bolt; 20. Air exhaust pipe; 21. Gas storage box; 22. Cover plate two; 23. Buckle; 24. Pressure relief pipe; 25. Butterfly valve; 26. Filter screen two; 27. Upward air duct. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The embodiments disclosed in this application are as follows: Figure 1-7 The chemical reaction waste gas detection device shown includes a housing 1. Multiple legs 2 are fixedly connected to the bottom of the housing 1, and a handle 3 is fixedly connected to the top of the housing 1. Two air inlet hoods 4 are fixedly connected to one side of the housing 1, and two air outlet hoods 5 are fixedly connected to the other side of the housing 1. Two collection mechanisms are provided on one side of the air inlet hoods 4. The collection mechanism includes a duct fan 6, the air outlet of which is connected to one side of the air inlet hood 4. An air inlet pipe 7 is fixedly connected to the air inlet end of the duct fan 6. Multiple slots 8 are provided on the outer side of the air inlet pipe 7. An air inlet pipe 9 is rotatably connected to the outer side of the air inlet pipe 7. Two outer cylinders 10 are fixedly connected to the outer side of the air inlet pipe 9. A spring 11 is fixedly connected to the inner side of the outer cylinder 10. A locking block 12 is fixedly connected to the bottom of the spring 11. The outer side of the locking block 12 is slidably connected to the inner side of the outer cylinder 10. An air inlet plate 13 is clamped to one end of the air inlet pipe 9. A filter screen 14 is fixedly connected to one side of the air inlet plate 13. A descending air duct 15 and an ascending air duct 27 are provided inside the housing 1. The top of the duct 15 is connected to one side of the intake hood 4, the bottom of the descending duct 15 is connected to one side of the exhaust hood 5, the bottom of the ascending duct 27 is connected to one side of the intake hood 4, and the top of the ascending duct 27 is connected to one side of the exhaust hood 5. Two cover plates 16 are snapped onto the outside of the outer shell 1. An electrochemical gas sensor 17 is fixedly connected to the outside of the cover plate 16. An intake pipe 18 is fixedly connected to the inlet end of the electrochemical gas sensor 17. One end of the intake pipe 18 passes through the inside of the cover plate 16 and extends into the inside of the outer shell 1. Two bolts 19 are rotatably connected to the outside of the cover plate 16. Two storage mechanisms are provided on the outside of the outer shell 1. The rotation of the intake pipe 9 is limited by two outer cylinders 10, springs 11 and locking blocks 12. Through the guidance of the descending duct 15 and the ascending duct 27, the heavier gases and sulfur dioxide gases in the exhaust gas rise and fall inside the descending duct 15 and the ascending duct 27, so that the exhaust gas can be collected and detected by the electrochemical gas sensor 17 and the intake pipe 18.

[0025] Reference Figure 2 and Figure 7As shown, the storage mechanism includes an exhaust pipe 20, a gas storage box 21 fixedly connected to the bottom of the exhaust pipe 20, a gas storage box 21 fixedly connected to the outer side of the outer shell 1 on one side, a cover plate 22 hinged to the outer side of the gas storage box 21, a buckle 23 fixedly connected to the outer side of the cover plate 22, the outer side of the buckle 23 engaging with the outer side of the exhaust pipe 20, a pressure relief pipe 24 connected to the outer side of the gas storage box 21, a butterfly valve 25 provided on the outer side of the pressure relief pipe 24, and a filter screen 26 fixedly connected to the top of the pressure relief pipe 24. By using the two exhaust pipes 20 to input waste gas into the gas storage box 21, the heavy metal vapor and sulfur dioxide gas can squeeze out the air inside the gas storage box 21, so that the gas storage box 21 stores heavy metal vapor and sulfur dioxide gas.

[0026] The working principle of this utility model is as follows: When it is necessary to detect heavy metal vapors and sulfur dioxide gas in the waste gas generated by a chemical reaction, firstly, the second intake pipe 9 is rotated to drive the intake disc 13 to rotate outside the first intake pipe 7, so that the opening orientation of the two intake discs 13 and the filter screen 14 can be adjusted to connect the two intake discs 13 to the external waste gas discharge pipe. Then, the spring 11 on the outside of the two intake pipes 9 pushes the locking block 12 to engage and limit the two locking slots 8 on the outside of the first intake pipe 7. Finally, the two duct fans 6 are started to input the waste gas discharged from the external waste gas discharge pipe through the filter screen 14, intake disc 13, second intake pipe 9, and first intake pipe 7 into the duct fans 6. Inside, the exhaust gas enters the corresponding descending duct 15 and ascending duct 27 through the intake hood 4 on one side of the duct fan 6. As the exhaust gas flows through the descending duct 15, the sulfur dioxide gas in the exhaust gas accumulates inside the descending duct 15 and moves toward the exhaust hood 5 at the other end of the descending duct 15. At the same time, as the exhaust gas flows through the ascending duct 27, the heavy metal vapor in the exhaust gas moves from the bottom to the top of the ascending duct 27, thereby accumulating the heavy metal vapor in the exhaust gas. The heavy metal vapor and sulfur dioxide gas accumulated inside the descending duct 15 and ascending duct 27 are then collected and detected by the suction pipe 18 on one side of the electrochemical gas sensor 17.

[0027] After the heavy metal vapor and sulfur dioxide gas enter the interior of the exhaust hood 5 through the descending air duct 15 and the ascending air duct 27, they are guided by the exhaust hood 5 and the exhaust pipe 20 to enter the interior of the storage box 21. Then, after being transported by the ascending air duct 27, the heavy metal vapor is input into the interior of the storage box 21 through the exhaust pipe 20. The heavy metal vapor inside the storage box 21 will discharge the sulfur dioxide gas in the storage box 21 through the pressure relief pipe 24 at the top of the storage box 21, so that the storage box 21 on the ascending air duct 27 stores heavy metal vapor. At the same time, the storage box 21 on the descending air duct 15 will input sulfur dioxide gas into the corresponding storage box 21, so that the sulfur dioxide gas will squeeze out the air inside the storage box 21, so that the other storage box 21 stores lighter waste gas. Then, the corresponding butterfly valve 25 is rotated and closed to complete the collection of heavy metal vapor and sulfur dioxide gas.

[0028] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for detecting chemical reaction exhaust gases, comprising a housing (1), characterized in that: The bottom of the shell (1) is fixedly connected with a plurality of legs (2), the top of the shell (1) is fixedly connected with a handle (3), one side of the shell (1) is fixedly connected with two air inlet covers (4), the other side of the shell (1) is fixedly connected with two air outlet covers (5), and the air inlet cover (4) is provided with two collecting mechanisms on one side. The collecting mechanism comprises a pipeline fan (6), the pipeline fan (6) is communicated with the air inlet cover (4) on one side, the pipeline fan (6) is fixedly connected with an air inlet pipe one (7) on the air inlet end, a plurality of clamping grooves (8) are formed on the outer side of the air inlet pipe one (7), the air inlet pipe two (9) is rotatably connected to the outer side of the air inlet pipe one (7), two outer cylinders (10) are fixedly connected to the outer side of the air inlet pipe two (9), the spring (11) is fixedly connected to the inner side of the outer cylinder (10), the clamping block (12) is fixedly connected to the bottom of the spring (11), and the clamping block (12) is slidably connected to the inner side of the outer cylinder (10). The outer side of the shell (1) is provided with two storage mechanisms.

2. The chemical reaction off-gas detection apparatus according to claim 1, characterized by: The air inlet disc (13) is clamped on one end of the air inlet pipe two (9), and the air inlet disc (13) is fixedly connected with a filter screen one (14) on one side.

3. The chemical reaction exhaust gas detection apparatus according to claim 1, characterized by: The inner side of the shell (1) is provided with a descending air duct (15) and an ascending air duct (27), the top of the descending air duct (15) is communicated with one side of the air inlet cover (4), the bottom of the descending air duct (15) is communicated with one side of the air outlet cover (5), the bottom of the ascending air duct (27) is communicated with one side of the air inlet cover (4), and the top of the ascending air duct (27) is communicated with one side of the air outlet cover (5).

4. The chemical reaction exhaust gas detection apparatus according to claim 1, characterized by: The outer side of the shell (1) is clamped with two cover plates one (16), the outer side of the cover plate one (16) is fixedly connected with an electrochemical gas sensor (17), the air inlet end of the electrochemical gas sensor (17) is fixedly connected with an air suction pipe (18), one end of the air suction pipe (18) penetrates the inner side of the cover plate one (16) and extends into the shell (1), and the outer side of the cover plate one (16) is rotatably connected with two bolts (19).

5. The chemical reaction exhaust gas detection apparatus according to claim 1, characterized by: The storage mechanism comprises an air outlet pipe (20), and the bottom of the air outlet pipe (20) is fixedly connected with a gas storage box (21).

6. The chemical reaction off-gas detection apparatus according to claim 5, characterized by: The outer side of the gas storage box (21) is hingedly connected with a cover plate two (22), the outer side of the cover plate two (22) is fixedly connected with a buckle (23), and the outer side of the buckle (23) is clamped with the outer side of the air outlet pipe (20).

7. The chemical reaction exhaust gas detection apparatus according to claim 5, characterized by: The outer side of the gas storage box (21) is communicated with a pressure relief pipe (24), the outer side of the pressure relief pipe (24) is provided with a butterfly valve (25), and the top end of the pressure relief pipe (24) is fixedly connected with a filter screen two (26).

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