A self-cleaning dual-channel flue gas sampler

Abstract

The utility model discloses a self-cleaning dual-path smoke sampler, which includes a shell, two air intake pipes are fixed on the top of the shell, a connecting pipe is fixed on the top of the outer wall of the air intake pipe, a cleaning mechanism is arranged on the top of the air intake pipe, the cleaning mechanism includes a motor and a rotating shaft, the motor is fixed to the outer wall of the top of the air intake pipe, a telescopic assembly is connected to the outer wall of the rotating shaft, the telescopic assembly is composed of a plurality of telescopic sleeves of different sizes, electromagnets are fixed to the inner and outer walls of the ends of the telescopic sleeves away from the motor and the outer wall of the bottom end of the rotating shaft, and a cleaning brush is connected to the outer wall of the telescopic sleeve located at the outermost side. The utility model, by providing a telescopic assembly and an electromagnet, utilizes the interaction between the magnetic poles of the magnet to realize the telescopic assembly, drives the cleaning brush to move, is not easily affected by particles in the smoke, and avoids the cleaning brush from being affected by the particles and being difficult to move, or even stuck.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke sampling, in particular to a self-cleaning dual-path smoke sampler. Background Art

[0002] A flue gas sampler is generally composed of three parts: a collector, a flow meter and an exhaust power system. Its main function is to collect samples of various harmful gases from fixed emissions such as flues and exhaust pipes in industrial and mining enterprises, so as to correctly evaluate the emission status of the emission sources, ensure the purity of the emission gases, and ensure that no damage is caused to the environment. Compared with ordinary flue gas samplers, dual-channel flue gas samplers have more complete functions.

[0003] After searching, the Chinese patent publication number CN208795567U discloses an intelligent dual-path smoke sampler, including a left outer shell, a right outer shell is arranged on the right side of the left outer shell, card blocks are installed on the upper and lower sides of the inner wall of the left outer shell, and plug blocks are installed on the upper and lower sides of the inner wall of the right outer shell, and one end of the plug block close to the card block extends to the interior of the card block, a collector is installed on the left side of the inner wall of the left outer shell, and two air pipes are plugged into the right side of the right outer shell, and the left end of the air pipe passes through the right side of the collector and extends to the interior of the collector.

[0004] This patent forms a slot by using a card block and a left outer shell in combination, so that the insert block is inserted into the card block to achieve a fixed connection effect, and the left outer shell and the right outer shell are fixedly connected by bolts, making the intelligent dual-path smoke sampler easier to install and disassemble. However, it uses a driving device to drive the threaded rod to rotate, so that the brush moves to clean the inner wall of the trachea. However, during operation, the threaded rod is exposed to the environment for a long time, and the particles in the smoke will adhere to the surface of the threaded rod, causing difficulty in movement or even jamming. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a self-cleaning dual-path smoke sampler.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A self-cleaning dual-path smoke sampler comprises a shell, two air intake pipes are fixed on the top of the shell, a connecting pipe is fixed on the top of the outer wall of the air intake pipe, a cleaning mechanism is arranged on the top of the air intake pipe, the cleaning mechanism comprises a motor and a rotating shaft, the motor is fixed to the outer wall of the top of the air intake pipe, the rotating shaft is connected to the output shaft of the motor through a coupling, a telescopic assembly is connected to the outer wall of the rotating shaft, the telescopic assembly is composed of a plurality of telescopic sleeves of different sizes, a plurality of the telescopic sleeves are limitedly slidably connected, the telescopic sleeve located at the center of the telescopic assembly is limitedly slidably connected to the rotating shaft, electromagnets are fixed on the inner and outer walls of the end of the telescopic sleeves away from the motor and the outer wall of the bottom end of the rotating shaft, a cleaning brush is connected to the outer wall of the outermost telescopic sleeve, and the cleaning brush is in sliding contact with the inner wall of the air intake pipe.

[0008] As a further solution of the utility model: a sampler body is arranged on the inner wall of the shell, two water removal tanks are arranged on the top of the shell, and both sides of the water removal tanks are connected with the bottom end of the air inlet pipe and the sampler body through the air supply pipe.

[0009] As a further solution of the utility model: a plurality of condensation plates are fixed to the inner wall of the water removal tank, and the condensation plates are staggered and arranged at equal distances.

[0010] As a further solution of the utility model: a fixing plate is fixed to the inner wall of the top end of the air intake pipe, and a rotating plate is rotatably connected to the inner wall of the fixing plate.

[0011] As a further solution of the utility model: the rotating plate is fixedly connected to the outer wall of the rotating shaft, and the outer wall of the bottom end of the fixed plate is rotatably connected to a knocking rod through a connecting column.

[0012] As a further solution of the utility model: one end of the knocking rod is in contact with the inner wall of the air intake pipe, and the outer wall of the connecting column is sleeved with a torsion spring.

[0013] As a further solution of the utility model: the two ends of the torsion spring are respectively connected to the knocking rod and the fixing plate.

[0014] As a further solution of the utility model: a push column is fixed to the outer wall of the bottom end of the rotating plate, and the push column is in contact with one end of the knocking rod.

[0015] Compared with the prior art, the utility model provides a self-cleaning dual-channel smoke sampler, which has the following beneficial effects:

[0016] 1. The utility model is provided with a telescopic component and an electromagnet, and utilizes the interaction between the magnetic poles of the magnet to realize the extension and retraction of the telescopic component, thereby driving the cleaning brush to move, which is not easily affected by particles in the smoke, thereby avoiding the cleaning brush from being affected by the particles and causing difficulty in moving, or even getting stuck.

[0017] 2. The utility model removes water from the sampled flue gas by providing a water removal box and a condensation plate, thereby avoiding the influence of the detection result on the water vapor content in the flue gas being high and having a large variation range.

[0018] 3. The utility model is provided with a fixed plate, a rotating plate, a pushing column, a knocking rod, a connecting column and a torsion spring. While cleaning the inner wall of the air intake duct, the air intake duct is knocked to generate vibration, thereby accelerating the falling of particles and improving the cleaning effect.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a self-cleaning dual-channel smoke sampler proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of a self-cleaning dual-channel smoke sampler proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the air intake duct of a self-cleaning dual-path smoke sampler proposed by the utility model;

[0023] Figure 4 This is a top cross-sectional view of an air intake duct of a self-cleaning dual-path smoke sampler proposed in the utility model.

[0024] In the figure: 1. Shell; 2. Air inlet pipe; 3. Connecting pipe; 4. Dust box; 5. Water removal tank; 6. Air pipe; 7. Motor; 8. Condensation plate; 9. Sampler body; 10. Fixed plate; 11. Rotating plate; 12. Rotating shaft; 13. Telescopic sleeve; 14. Electromagnet; 15. Cleaning brush; 16. Push column; 17. Knocking rod; 18. Connecting column; 19. Torsion spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Example 1

[0028] A self-cleaning dual-path flue gas sampler, such as Figures 1 to 3 As shown, it includes a shell 1, two air intake pipes 2 are fixed on the top of the shell 1, a connecting pipe 3 is fixed on the top of the outer wall of the air intake pipe 2, a cleaning mechanism is arranged on the top of the air intake pipe 2, a sampler body 9 is arranged on the inner wall of the shell 1, two water removal tanks 5 are arranged on the top of the shell 1, both sides of the water removal tanks 5 are connected with the bottom end of the air intake pipe 2 and the sampler body 9 through the air supply pipe 6, a plurality of condensation plates 8 are fixed on the inner wall of the water removal tank 5, the condensation plates 8 are staggered and equidistantly arranged, and the gaps between the plurality of condensation plates 8 constitute a serpentine channel.

[0029] The cleaning mechanism includes a motor 7 and a rotating shaft 12, wherein the motor 7 is fixed to the outer wall of the top end of the air intake duct 2, and the rotating shaft 12 is connected to the output shaft of the motor 7 through a coupling. The outer wall of the rotating shaft 12 is connected with a telescopic component, and the telescopic component is composed of a plurality of telescopic sleeves 13 of different sizes. The plurality of telescopic sleeves 13 are limitedly slidably connected with each other, and the telescopic sleeve 13 located at the center of the telescopic component is limitedly slidably connected with the rotating shaft 12. Electromagnets 14 are fixed to the inner and outer walls of the ends of the telescopic sleeves 13 away from the motor 7 and the outer wall of the bottom end of the rotating shaft 12. The telescopic sleeves 13 are made of magnetic shielding material, and the outer wall of the outermost telescopic sleeve 13 is connected with a cleaning brush 15, and the cleaning brush 15 is in sliding contact with the inner wall of the air intake duct 2.

[0030] During sampling, the flue gas enters the air intake pipe 2 from the connecting pipe 3, enters the water removal tank 5 through the air supply pipe 6, and flows along the gaps between the condensation plates 8. The condensation plates 8 condense the moisture in the flue gas and reduce the moisture in the flue gas. At the same time, the condensation plates 8 are arranged in a staggered manner to increase the flow distance of the flue gas, so that the condensation effect of the same volume of the water removal tank 5 is better. The dehydrated flue gas enters the sampler body 9 through the air supply pipe 6 at the other end of the water removal tank 5. When the sampling is completed, the motor 7 is started and the telescopic component is driven to rotate through the rotating shaft 12, so that the cleaning brush 15 cleans the inner wall of the air intake pipe 2. At the same time, the electromagnet 14 is energized, and the telescopic sleeves 13 are moved away from each other by the same poles repelling each other between the electromagnets 14, driving the cleaning brush 15 to change its position, and the cleaned particles fall into the dust collecting box 4 for collection. After cleaning, the current passed into some of the electromagnets 14 changes, so that the electromagnets 14 change from the same poles repelling each other to the opposite poles attracting each other, so that the telescopic sleeves 13 are close to each other, driving the cleaning brush 15 to reset.

[0031] By setting up a telescopic component and an electromagnet 14, the interaction between the magnetic poles of the magnet is utilized to realize the telescopic component's extension and retraction, thereby driving the cleaning brush 15 to move, which is not easily affected by particles in the smoke, thereby preventing the cleaning brush 15 from being affected by particles and becoming difficult to move or even stuck.

[0032] By providing a dehydration box 5 and a condensation plate 8, the sampled flue gas is dehydrated to avoid the detection result being affected by the high content of water vapor in the flue gas and the large variation range.

[0033] Example 2

[0034] A self-cleaning dual-path smoke sampler. This embodiment makes the following improvements on the basis of embodiment 1: Figure 3 , Figure 4 As shown, a fixed plate 10 is fixed to the inner wall of the top end of the air intake pipe 2, and a rotating plate 11 is rotatably connected to the inner wall of the fixed plate 10. The rotating plate 11 is fixedly connected to the outer wall of the rotating shaft 12. The outer wall of the bottom end of the fixed plate 10 is rotatably connected to a knocking rod 17 through a connecting column 18. One end of the knocking rod 17 is in contact with and cooperates with the inner wall of the air intake pipe 2. A torsion spring 19 is sleeved on the outer wall of the connecting column 18. Both ends of the torsion spring 19 are respectively connected to the knocking rod 17 and the fixed plate 10. A pushing column 16 is fixed to the outer wall of the bottom end of the rotating plate 11. The pushing column 16 is in contact with and cooperates with one end of the knocking rod 17.

[0035] When the motor 7 drives the rotating shaft 12 to rotate, the rotating plate 11 rotates with the rotating shaft 12. When the pushing column 16 moves to the side of the knocking rod 17 with the rotating plate 11, the knocking rod 17 is squeezed by the pushing column 16 and rotates with the connecting column 18 as the rotation center. The torsion spring 19 twists and accumulates force. When the knocking rod 17 rotates to a certain angle, the knocking rod 17 avoids the pushing column 16, and the pushing column 16 no longer squeezes the knocking rod 17. The torsion spring 19 drives the knocking rod 17 to rotate, knocking on the air intake pipe 2 to generate vibration, thereby accelerating the falling of particles and improving the cleaning effect.

[0036] By providing a fixed plate 10, a rotating plate 11, a pushing column 16, a knocking rod 17, a connecting column 18 and a torsion spring 19, while cleaning the inner wall of the air intake duct 2, the air intake duct 2 is knocked to generate vibration, thereby accelerating the falling of particles and improving the cleaning effect.

[0037] Working principle: During sampling, the flue gas enters the air intake pipe 2 from the connecting pipe 3, enters the water removal tank 5 through the air delivery pipe 6, and flows along the gaps between the condensation plates 8. The condensation plates 8 condense the water in the flue gas and reduce the water in the flue gas. At the same time, the condensation plates 8 are arranged in a staggered manner to increase the flow distance of the flue gas, so that the condensation effect of the water removal tank 5 with the same volume is better. The dehydrated flue gas enters the sampler body 9 through the air delivery pipe 6 at the other end of the water removal tank 5. When the sampling is completed, the motor 7 is started, and the telescopic component is driven to rotate through the rotating shaft 12, so that the cleaning brush 15 cleans the inner wall of the air intake pipe 2. At the same time, the electromagnet 14 is energized, and the telescopic sleeves 13 are moved away from each other by the repulsion of the same poles between the electromagnets 14, driving the cleaning brush 15 to change its position and clean the lower wall. The particles fall into the dust collecting box 4 for collection. At the same time, the rotating plate 11 rotates with the rotating shaft 12. When the pushing column 16 moves to the side of the knocking rod 17 with the rotating plate 11, the knocking rod 17 is squeezed by the pushing column 16 and rotates with the connecting column 18 as the rotation center. The torsion spring 19 twists and stores force. When the knocking rod 17 rotates to a certain angle, the knocking rod 17 avoids the pushing column 16, and the pushing column 16 no longer squeezes the knocking rod 17. The torsion spring 19 drives the knocking rod 17 to rotate, knocking the air intake pipe 2 to generate vibration, thereby accelerating the falling of particles and improving the cleaning effect. After cleaning, the current passed into some electromagnets 14 changes, so that the electromagnets 14 change from repelling each other with the same poles to attracting each other with opposite poles, so that the telescopic sleeves 13 are close to each other, driving the cleaning brush 15 to reset.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-cleaning dual-path smoke sampler, comprising a housing (1), characterized in that: Two air intake pipes (2) are fixed at the top of the housing (1); a connecting pipe (3) is fixed at the top of the outer wall of the air intake pipe (2); a cleaning mechanism is arranged at the top of the air intake pipe (2); the cleaning mechanism comprises a motor (7) and a rotating shaft (12); the motor (7) is fixed to the outer wall of the top of the air intake pipe (2); the rotating shaft (12) is connected to the output shaft of the motor (7) via a coupling; the outer wall of the rotating shaft (12) is connected to a telescopic component; the telescopic component comprises a plurality of different sized The telescopic sleeve (13) is composed of a plurality of telescopic sleeves (13) which are connected in a limited sliding manner. The telescopic sleeve (13) located at the center of the telescopic assembly is connected in a limited sliding manner to the rotating shaft (12). Electromagnets (14) are fixed to the inner and outer walls of the ends of the telescopic sleeves (13) away from the motor (7) and the outer wall of the bottom end of the rotating shaft (12). A cleaning brush (15) is connected to the outer wall of the outermost telescopic sleeve (13). The cleaning brush (15) is in sliding contact with the inner wall of the air intake duct (2).

2. A self-cleaning dual-channel smoke sampler according to claim 1, characterized in that: A sampler body (9) is arranged on the inner wall of the shell (1), and two water removal boxes (5) are arranged on the top of the shell (1). Both sides of the water removal boxes (5) are connected to the bottom end of the air intake pipe (2) and the sampler body (9) through an air supply pipe (6).

3. A self-cleaning dual-channel smoke sampler according to claim 2, characterized in that: A plurality of condensation plates (8) are fixed to the inner wall of the dewatering box (5), and the condensation plates (8) are arranged in a staggered and equidistant manner.

4. A self-cleaning dual-channel smoke sampler according to claim 1, characterized in that: A fixing plate (10) is fixed to the inner wall of the top end of the air intake pipe (2), and a rotating plate (11) is rotatably connected to the inner wall of the fixing plate (10).

5. A self-cleaning dual-channel smoke sampler according to claim 4, characterized in that: The rotating plate (11) is fixedly connected to the outer wall of the rotating shaft (12), and the outer wall of the bottom end of the fixed plate (10) is rotatably connected to a knocking rod (17) via a connecting column (18).

6. A self-cleaning dual-channel smoke sampler according to claim 5, characterized in that: One end of the knocking rod (17) is in contact with the inner wall of the air intake pipe (2), and the outer wall of the connecting column (18) is sleeved with a torsion spring (19).

7. A self-cleaning dual-channel smoke sampler according to claim 6, characterized in that: The two ends of the torsion spring (19) are respectively connected to the knocking rod (17) and the fixing plate (10).

8. A self-cleaning dual-channel smoke sampler according to claim 4, characterized in that: A push column (16) is fixed to the outer wall of the bottom end of the rotating plate (11), and the push column (16) is in contact with one end of the knocking rod (17).

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