Carbon-containing gas trapping and detecting device for flue gas

Abstract

The utility model discloses a carbon-containing gas trapping and detecting device for flue gas, which comprises a trapping pipe, a filter pipe, a collecting pipe, a detector, an air suction pipe and an air extracting pump, an inserting column which moves along the axial direction of the trapping pipe is movably sleeved in the trapping pipe, one end of the inserting column is fixedly connected with an end plate which is hermetically connected with the end face of the trapping pipe, and the other end of the inserting column is fixedly connected with the air extracting pump. One end of the ventilation hole penetrates through the free end of the insertion column, and the other end of the ventilation hole penetrates through the side wall of the insertion column. According to the utility model, the end plate abuts against the flange at the end part of the trapping pipe, and the sealing gasket and the vent hole between the end plate and the flange completely extend into the trapping pipe, so that flue gas cannot enter the trapping pipe, the sealing performance of the device is improved, and the flue gas is prevented from still flowing into the trapping pipe when the device is not used; the end plate, the electric push rod, the polish rod and other structures are all arranged on the outer side of the device, and the situation that the device cannot work normally due to smoke pollution is prevented.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas capture technology, and in particular to a carbon-containing gas capture and detection device for flue gas. Background Technology

[0002] Flue gas is a mixture of gases and soot, and it is the main cause of atmospheric pollution in residential areas. The composition of flue gas is very complex. The gases include water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons and nitrogen oxides, etc. The soot includes fuel ash, coal particles, oil droplets and high-temperature pyrolysis products, etc. Therefore, flue gas pollution of the environment is a complex pollution of multiple toxic substances.

[0003] The patent CN219842395U, entitled "A Carbon-Containing Gas Capture and Detector for Flue Gas," discloses that "when the operator needs to capture flue gas for detection, they only need to connect the ventilation hole of the device to the exhaust pipe, and then start the vacuum pump to evacuate the inside of the device. When the inside is close to a vacuum state, the forward and reverse motor is started to rotate forward, causing the baffle to move the rubber pad to the rear end under the action of the threaded hole, thereby opening the ventilation hole. The flue gas will be forced into the collection box from both sides of the baffle by the atmosphere. During this period, the flue gas will enter the collection box through the filter device. After the oil and particulate matter are adsorbed, the gas will float upward and enter the detector to complete the detection work." However, during the process of the flue gas entering the collection box through the ventilation hole, the dust, coal particles, oil droplets and other impurities contained therein have not been filtered. These substances are easy to adhere to the screw, causing slippage between the screw and the screw hole, which in turn affects the normal advance and retraction operation of the baffle. Utility Model Content

[0004] The purpose of this utility model is to provide a carbon-containing gas capture and detection device for flue gas in order to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A carbon-containing gas capture and detection device for flue gas includes a capture tube, a filter tube, a collection tube, a detector, an intake tube, and a pump. The capture tube, filter tube, collection tube, and intake tube are fixedly connected. The detector is installed on the intake tube, and the free end of the intake tube is connected to the pump. A movable insert is provided inside the capture tube and moves along its axial direction. One end of the insert is fixedly connected to an end plate that is sealed to the end face of the capture tube. An L-shaped vent hole is provided on the insert, with one end of the vent hole penetrating the free end of the insert hole and the other end penetrating the side wall of the insert hole.

[0007] As a further description of the above technical solution:

[0008] A limiting ring is fixedly fitted on the side of the insertion post near its free end, and a stop ring is fixedly connected to the side of the inner wall of the collection tube near the end plate.

[0009] As a further description of the above technical solution:

[0010] Flanges are provided at both ends of the trapping tube, the filter tube, the collecting tube, and one end of the suction tube, and adjacent flanges are fixedly connected by several bolts.

[0011] As a further description of the above technical solution:

[0012] An electric push rod is fixedly installed on the collection tube. The free end of the electric push rod passes through the flange on the free end of the collection tube and is fixedly connected to the end plate. Several smooth rods that pass through the flange on the free end of the collection tube are fixedly connected to the end plate.

[0013] As a further description of the above technical solution:

[0014] Sealing gaskets are provided between the flanges on the end plate and the free end of the collection tube, between the other adjacent flanges, and between the limiting ring and the stop ring.

[0015] As a further description of the above technical solution:

[0016] The filter tube has grooves on the flanges at both ends, and filter screens are installed in the grooves.

[0017] As a further description of the above technical solution:

[0018] Along the direction from the collection tube to the filter tube, the pore size of the two sets of filter screens tends to decrease.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. In this utility model, the end plate abuts against the flange at the end of the collection pipe, and a sealing gasket is placed between them. The vent hole extends completely into the inside of the collection pipe, thereby ensuring that the flue gas will not enter the collection pipe, improving the sealing performance of the device, and preventing the flue gas from flowing into the inside of the device when it is not in use. The end plate, electric push rod and smooth rod are all set on the outside of the device to prevent the device from malfunctioning due to flue gas pollution.

[0021] 2. In this utility model, when it is necessary to collect flue gas for testing, the electric push rod drives the end plate to move the insertion post outward until the limit ring and the stop ring abut against each other. The sealing gasket between the two ensures that the flue gas will not leak outward. At this time, the other end of the vent hole is exposed. Connect the exhaust pipe to the other end of the vent hole. Then, start the air pump to draw air from the inside of the device. The flue gas enters the collection tube and the filter tube in sequence through the vent hole. After passing through the filter screens at both ends of the filter tube to filter out the oil and particulate matter in the flue gas, it enters the collection tube. Finally, the detection work is completed by the detector. Attached Figure Description

[0022] Figure 1 An explosion schematic diagram of a carbon-containing gas capture and detection device for flue gas according to an embodiment of the present invention is shown.

[0023] Figure 2 A cross-sectional schematic diagram of a carbon-containing gas capture and detection device for flue gas according to an embodiment of the present invention is shown;

[0024] Figure 3 A three-dimensional structural schematic diagram of a carbon-containing gas capture and detection device for flue gas according to an embodiment of the present invention is shown.

[0025] Legend:

[0026] 1. Insert post; 101. Vent hole; 2. Sealing gasket; 3. Collection tube; 4. Flange; 5. Filter screen; 6. Filter tube; 601. Groove; 7. Bolt; 8. Collection tube; 9. Detector; 10. Suction tube; 11. Air pump; 12. End plate; 13. Smooth rod; 14. Limiting ring; 15. Electric push rod; 16. Stop ring. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-3This utility model provides a technical solution: a carbon-containing gas capture and detection device for flue gas, including a capture tube 3, a filter tube 6, a collection tube 8, a detector 9, an intake tube 10, and a suction pump 11. The capture tube 3, filter tube 6, collection tube 8, and intake tube 10 are fixedly connected. The detector 9 is installed on the intake tube 10. The free end of the intake tube 10 is connected to the suction pump 11. Flanges 4 are provided at both ends of the capture tube 3, filter tube 6, and collection tube 8, as well as at one end of the intake tube 10. Adjacent flanges 4 are fixedly connected by several bolts 7 to facilitate disassembly and assembly between adjacent pipes. Grooves 601 are provided on the flanges 4 at both ends of the filter tube 6. Filter screens 5 are provided in the grooves 601 to facilitate replacement or cleaning of the filter screens 5. Along the direction from the capture tube 3 to the filter tube 6, the pore size of the two sets of filter screens 5 decreases, thereby filtering impurities in the flue gas step by step and improving the filtration effect.

[0029] Specifically, such as Figure 1 and Figure 2 As shown, sealing gaskets 2 are provided between the end plate 12 and the flange 4 on the free end of the collection pipe 3, between the other adjacent flanges 4, and between the limit ring 14 and the stop ring 16, so as to achieve a sealing effect and prevent flue gas leakage.

[0030] Specifically, such as Figure 2As shown, a plug 1 that moves axially is movably fitted inside the collection tube 3. An electric push rod 15 is fixedly installed on the collection tube 3. The free end of the electric push rod 15 passes through the flange 4 on the free end of the collection tube 3 and is fixedly connected to the end plate 12. Several smooth rods 13 that pass through the flange 4 on the free end of the collection tube 3 are fixedly connected to the end plate 12 to ensure the smooth movement of the end plate 12. One end of the plug 1 is fixedly connected to the end plate 12 that is sealed to the end face of the collection tube 3. A limiting ring 14 is fixedly fitted on the side of the plug 1 near its free end. A stop ring 16 is fixedly connected on the side of the inner wall of the collection tube 3 near the end plate 12. A vent hole 101 with an L-shaped cross section is opened on the plug 1. One end of the vent hole 101 passes through the free end of the plug 1, and the other end of the vent hole 101 passes through the side wall of the plug 1. When flue gas needs to be captured for testing, the electric push rod 15 drives the end plate 12 to move the insertion post 1 outward until the limit ring 14 and the stop ring 16 abut. The sealing gasket 2 between them ensures that the flue gas will not leak outward. At this time, the other end of the vent hole 101 is exposed. The exhaust pipe is connected to the other end of the vent hole 101. The flue gas enters the collection pipe 3 and the filter pipe 6 through the vent hole 101 in sequence and then enters the collection pipe 8. The detection work is completed by the detector 9. When flue gas is not captured, the end plate 12 abuts against the flange at the end of the collection pipe 3. The sealing gasket 2 between them and the vent hole 101 are completely inserted into the inside of the collection pipe 3, thereby ensuring that the flue gas will not enter the collection pipe, improving the sealing performance of the device and preventing the flue gas from flowing into the inside of the device when it is not in use. The end plate 12, electric push rod 15 and smooth rod 13 are all set on the outside of the device to prevent the device from malfunctioning due to flue gas pollution.

[0031] Working principle: When it is necessary to collect flue gas for testing, the electric push rod 15 drives the end plate 12 to move the insertion post 1 outward until the limit ring 14 and the stop ring 16 abut against each other. The sealing gasket 2 between the two ensures that the flue gas will not leak outward. At this time, the other end of the vent hole 101 is exposed. Connect the exhaust pipe to the other end of the vent hole 101. Then, start the air pump 11 to draw air from the inside of the device. The flue gas enters the collection tube 3 and the filter tube 6 in sequence through the vent hole 101. After passing through the filter screens 5 at both ends of the filter tube 6 to filter out the oil and particulate matter in the flue gas, it enters the collection tube 8 and finally completes the testing work through the detector 9.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A carbon-containing gas capture and detection device for flue gas, comprising a capture tube (3), a filter tube (6), a collection tube (8), a detector (9), an intake tube (10), and a suction pump (11), characterized in that, The collecting tube (3), filter tube (6), collection tube (8) and suction tube (10) are fixedly connected. A detector (9) is installed on the suction tube (10). The free end of the suction tube (10) is connected to the air pump (11). The collecting tube (3) is movably fitted with a plug (1) that moves along its axial direction. One end of the plug (1) is fixedly connected to an end plate (12) that is sealed to the end face of the collecting tube (3). The plug (1) has an L-shaped ventilation hole (101) on it. One end of the ventilation hole (101) passes through the free end of the plug (1), and the other end of the ventilation hole (101) passes through the side wall of the plug (1).

2. The carbon-containing gas capture and detection device for flue gas according to claim 1, characterized in that, A limiting ring (14) is fixedly sleeved on the side of the insert (1) near its free end, and a stop ring (16) is fixedly connected to the side of the inner wall of the collecting tube (3) near the end plate (12).

3. The carbon-containing gas capture and detection device for flue gas according to claim 2, characterized in that, Flanges (4) are provided at both ends of the trapping pipe (3), the filter pipe (6), the collecting pipe (8), and one end of the suction pipe (10). Adjacent flanges (4) are fixedly connected by several bolts (7).

4. The carbon-containing gas capture and detection device for flue gas according to claim 3, characterized in that, An electric push rod (15) is fixedly installed on the collection tube (3). The free end of the electric push rod (15) passes through the flange (4) on the free end of the collection tube (3) and is fixedly connected to the end plate (12). Several smooth rods (13) passing through the flange (4) on the free end of the collection tube (3) are fixedly connected to the end plate (12).

5. A carbon-containing gas capture and detection device for flue gas according to claim 4, characterized in that, A sealing gasket (2) is provided between the flange (4) on the free end of the end plate (12) and the collecting pipe (3), between the other adjacent flanges (4), and between the limiting ring (14) and the stop ring (16).

6. The carbon-containing gas capture and detection device for flue gas according to claim 5, characterized in that, The filter tube (6) has grooves (601) on the flanges (4) at both ends, and a filter screen (5) is provided in the grooves (601).

7. A carbon-containing gas capture and detection device for flue gas according to claim 6, characterized in that, Along the direction from the collection tube (3) to the filter tube (6), the pore size of the two sets of filter screens (5) tends to decrease.

Images