Flue gas sampling device for boiler energy efficiency test

Abstract

The utility model relates to the technical field of flue gas sampling, and discloses a boiler energy efficiency test flue gas sampling device which comprises a protective shell, a cleaning auxiliary mechanism is arranged on the outer side of the protective shell, the cleaning auxiliary mechanism comprises a transparent high-temperature-resistant tank and a sucking pump, and the inner wall of the transparent high-temperature-resistant tank is fixedly connected with a gas inlet pipe and a gas outlet pipe respectively. The left side face of the protective shell is fixedly connected with a key controller, and the input end of the air suction pump fixedly communicates with an air suction pipe. According to the flue gas sampling device for the boiler energy efficiency test, through the protective shell and the cleaning auxiliary mechanism, the jacking column can jack the piston to the direction of the transparent high-temperature-resistant tank, and meanwhile, the return spring is compressed, so that after the ventilation shell and the first sealing sleeve are completely inserted into the butt joint shell, the gas outlet pipe, the butt joint shell, the ventilation shell and the gas suction pipe form a gas channel; and the key controller is operated to control the air pump to pump air matched with the internal capacity of the transparent high-temperature-resistant tank at a time, so that the transparent high-temperature-resistant tank can be gradually filled with a smoke sample at the air inlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas sampling, in particular to a flue gas sampling device for boiler energy efficiency testing. Background Art

[0002] Flue gas sampling refers to the process of collecting a representative portion of flue gas samples from a specific flue gas emission source (such as an industrial chimney, boiler or combustion equipment, etc.). It is of great significance for the testing of boiler energy efficiency. When sampling flue gas, a corresponding sampling device is required to extract the flue gas and collect it in a suitable container or device for subsequent analysis and testing of the composition, concentration and physical properties of the flue gas.

[0003] The existing utility model with authorization announcement number CN218956201U discloses a flue gas sampler for boiler energy efficiency testing. Through the design of the connecting tube, telescopic rod and support plate, the device can be supported when sampling the flue gas of the boiler, without the need for staff to hold it for a long time, reducing the burden on the staff. The support plate increases the ground area, making the support more stable. Through the design of the first internal thread, the first external thread, the second internal thread and the second external thread, the sampling tube and the telescopic rod can be tightened through the threaded connection when in use, which is convenient and practical. After use, the sampling tube and the telescopic rod can be disassembled, saving space and facilitating carrying and storage.

[0004] Although the above-mentioned technical solution can save time and effort during use, and is convenient for carrying and storage because it can be disassembled, the above-mentioned technical solution, when collecting flue gas, each flue gas sample will pass through various pipes and pump bodies, and lacks a clean auxiliary structure to reduce the accumulation of flue gas samples and flue gas impurities in the sampling power structure and the corresponding pipes. As a result, solid impurities in different flue gases will continue to accumulate in the power structure and the corresponding pipes, affecting their internal cleanliness. Even when different flue gas samples are not discharged cleanly, it will cause confusion in the collection of different flue gas samples, thereby affecting the sampling cleanliness and accuracy of the sampling device.

[0005] Therefore, those skilled in the art provide a flue gas sampling device for boiler energy efficiency testing to solve the problems raised in the above background technology. Utility Model Content

[0006] The purpose of the utility model is to provide a flue gas sampling device for boiler energy efficiency testing to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A flue gas sampling device for boiler energy efficiency testing comprises a protective shell, wherein a cleaning auxiliary mechanism is provided on the outer side of the protective shell;

[0009] The cleaning auxiliary mechanism includes a transparent high-temperature resistant tank and an air suction pump, the inner walls of the transparent high-temperature resistant tank are respectively fixedly connected with an air inlet pipe and an air outlet pipe, the left side of the protective shell is fixedly connected with a button controller, the input end of the air suction pump is fixedly connected with an air suction pipe, the output end of the air suction pump is fixedly connected with an exhaust pipe, the outer surface of the air suction pipe is clamped with an air-permeable shell, the outer surface of the air-permeable shell is fixedly connected with a first sealing sleeve, the back of the air-permeable shell is fixedly connected with a top column, the outer surface of the transparent high-temperature resistant tank is fixedly connected with a docking shell, the interior of the docking shell is respectively slidably connected with a piston and a limit rod, and the outer surface of the limit rod is sleeved with a return spring.

[0010] As a further solution of the present invention: the outer surface of the air pump is fixedly connected to the inner wall of the protective shell, the outer surface of the docking shell is fixedly connected to the top of the air outlet pipe, the air pump is electrically connected to the button controller through a wire, the outer surface of the air extraction pipe and the outer surface of the exhaust pipe are both fixedly connected to the inner wall of the protective shell, the end of the top column away from the breathable shell is in contact with the front of the piston, the back of the piston is fixedly connected to the end of the limit rod close to the piston, the two ends of the return spring are respectively in contact with the back of the piston and the inner wall of the docking shell, a sealing cover is provided above the air inlet pipe, and the outer surface of the sealing cover is fixedly connected to a non-slip sleeve.

[0011] As a further solution of the present invention: a second sealing sleeve is fixedly connected to the outer surface of the air intake pipe, and the outer surface of the second sealing sleeve is in contact with the inner wall of the sealing cover.

[0012] As a further solution of the present invention: the top of the transparent high-temperature resistant tank is fixedly connected to a handle support, and the inner wall of the handle support is fixedly connected to a pull rod.

[0013] As a further solution of the present invention: a grip is provided inside the handle support, and the inner wall of the grip is rotatably connected to the outer surface of the pull rod.

[0014] As a further solution of the present invention: an anti-skid pad is fixedly connected to the outer surface of the docking shell, and a plurality of identical anti-skid convex discs are fixedly connected to the outer surface of the anti-skid pad.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model cooperates with the protective shell and the cleaning auxiliary mechanism, and the top column can push the piston toward the transparent high-temperature resistant tank. At the same time, the return spring is compressed. Then, after the breathable shell and the first sealing sleeve are completely inserted into the docking shell, the outlet pipe, the docking shell, the breathable shell and the exhaust pipe form an air passage. The operation button controller can control the exhaust pump to exhaust the volume of the transparent high-temperature resistant tank in a single time, so that the smoke sample at the air inlet pipe can gradually fill the interior of the transparent high-temperature resistant tank. After the breathable shell is pulled out of the docking shell, the compressed return spring can rebound the piston to block the outlet pipe. The connection with the outside world prevents different flue gas samples or flue gas impurities from accumulating inside the vacuum pump, the vacuum pipe, the exhaust pipe and the breathable shell, thereby increasing the cleanliness and accuracy of the sampling, and avoiding the problem that due to the lack of a clean auxiliary structure to reduce the accumulation of flue gas samples and flue gas impurities in the sampling power structure and the corresponding pipeline, the power structure and the corresponding pipeline will continuously accumulate solid impurities in different flue gases, thereby affecting their internal cleanliness, and even causing confusion in the collection of different flue gas samples when different flue gas samples are not discharged cleanly, thereby affecting the sampling cleanliness and accuracy of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a flue gas sampling device for boiler energy efficiency testing;

[0018] Figure 2 A schematic diagram of a side-view cutaway perspective structure of a protective shell in a flue gas sampling device for boiler energy efficiency testing;

[0019] Figure 3 A schematic diagram of a side-view cutaway three-dimensional structure of a gas permeable shell in a flue gas sampling device for boiler energy efficiency testing;

[0020] Figure 4 This is a schematic diagram of the cutaway three-dimensional structure of a docking shell in a flue gas sampling device for boiler energy efficiency testing;

[0021] Figure 5 This is a schematic diagram of the cutaway three-dimensional structure of a transparent high-temperature resistant tank in a flue gas sampling device for boiler energy efficiency testing.

[0022] In the figure: 1. Protective shell; 2. Cleaning auxiliary mechanism; 201. Transparent high-temperature resistant tank; 202. Air inlet pipe; 203. Air outlet pipe; 204. Button controller; 205. Air pump; 206. Air exhaust pipe; 207. Exhaust pipe; 208. Breathable shell; 209. First sealing sleeve; 210. Top column; 211. Docking shell; 212. Piston; 213. Limit rod; 214. Return spring; 3. Anti-slip pad; 4. Anti-slip convex disc; 5. Sealing cover; 6. Anti-slip sleeve; 7. Second sealing sleeve; 8. Handle support; 9. Pull rod; 10. Grip. DETAILED DESCRIPTION

[0023] See also Figure 1-5 A flue gas sampling device for boiler energy efficiency test includes a protective shell 1. A cleaning auxiliary mechanism 2 is provided on the outside of the protective shell 1. The cleaning auxiliary mechanism 2 includes a transparent high-temperature resistant tank 201 and an air pump 205. The inner wall of the transparent high-temperature resistant tank 201 is fixedly connected with an air inlet pipe 202 and an air outlet pipe 203. The left side of the protective shell 1 is fixedly connected with a button controller 204. The outer surface of the air pump 205 is fixedly connected to the inner wall of the protective shell 1. The air pump 205 is connected to the button controller 205 through a wire. 4 is electrically connected, a sealing cover 5 is provided above the air inlet pipe 202, and an anti-slip cover 6 is fixedly connected to the outer surface of the sealing cover 5. The button controller 204 can control the amount of air extracted by the air pump 205 in a single time according to the capacity of the transparent high-temperature resistant tank 201. By providing the anti-slip cover 6, the anti-slip property of the outer surface of the sealing cover 5 can be increased, and the sealing cover 5 can be more stable when squeezed by hand. By providing the sealing cover 5, the air inlet pipe 202 can be sealed after the smoke is collected in the transparent high-temperature resistant tank 201.

[0024] The input end of the air pump 205 is fixedly connected to the air extraction pipe 206, and the output end of the air extraction pump 205 is fixedly connected to the exhaust pipe 207. The outer surfaces of the air extraction pipe 206 and the outer surfaces of the exhaust pipe 207 are fixedly connected to the inner wall of the protective shell 1. The outer surface of the air inlet pipe 202 is fixedly connected to the second sealing sleeve 7. The outer surface of the second sealing sleeve 7 is in contact with the inner wall of the sealing cover 5. By providing the second sealing sleeve 7, it can be cushioned between the air inlet pipe 202 and the sealing cover 5, thereby increasing the air tightness between the two.

[0025] The outer surface of the exhaust pipe 206 is clamped with a breathable shell 208, and the outer surface of the breathable shell 208 is fixedly connected to a first sealing sleeve 209. The top of the transparent high-temperature resistant tank 201 is fixedly connected to a handle support 8, and the inner wall of the handle support 8 is fixedly connected to a pull rod 9. There are several breathable holes on the back of the breathable shell 208, which are convenient for connecting the exhaust pipe 206 and the gas outside the breathable shell 208. By providing the pull rod 9, a rotation base surface can be provided for the hand-holding structure inside the handle support 8, thereby increasing the flexibility of use of the hand-holding structure. By providing the handle support 8 and the pull rod 9, the above-mentioned hand-holding structure can be cooperated to lift and move the transparent high-temperature resistant tank 201.

[0026] The back of the breathable shell 208 is fixedly connected to a top column 210, and the outer surface of the transparent high-temperature resistant tank 201 is fixedly connected to a docking shell 211. The outer surface of the docking shell 211 is fixedly connected to the top of the exhaust pipe 203. The first sealing sleeve 209 can increase the air tightness between the two after the breathable shell 208 is inserted into the docking shell 211. A handle 10 is provided inside the handle support 8, and the inner wall of the handle 10 is rotatably connected to the outer surface of the pull rod 9. By providing the handle 10, it can rotate around the outer surface of the pull rod 9 inside the handle support 8, and the transparent high-temperature resistant tank 201 can be conveniently lifted and moved after being grasped by hand.

[0027] The interior of the docking shell 211 is respectively slidably connected with a piston 212 and a limiting rod 213, and the outer surface of the limiting rod 213 is sleeved with a return spring 214. The end of the top column 210 away from the air-permeable shell 208 contacts the front of the piston 212, and the back of the piston 212 is fixedly connected to the end of the limiting rod 213 close to the piston 212. The two ends of the return spring 214 respectively contact the back of the piston 212 and the inner wall of the docking shell 211. The outer surface of the docking shell 211 is fixedly connected with an anti-slip pad 3, and the outer surface of the anti-slip pad 3 is fixedly connected with several identical anti-slip convex discs 4. By providing the anti-slip convex discs 4, the friction force of the outer surface of the anti-slip pad 3 can be increased, and the anti-slip pad 3 does not completely wrap the docking shell 211. There is enough space for the air pipe 203 to be placed below the docking shell 211.

[0028] The working principle of the present invention is as follows: when in use, first pull the sealing cover 5 away from the air inlet pipe 202, then hold the anti-skid pad 3 and the anti-skid convex plate 4 on the outer surface of the docking shell 211 with one hand, hold the protective shell 1 with the other hand, and push the top column 210 toward the piston 212. The piston 212 and the limit rod 213 will slide in the docking shell 211, and the return spring 214 will be compressed and deformed by the piston 212 and the docking shell 211 until the breathable shell 208 and the first sealing sleeve 209 are completely inserted into the docking shell 211, and the air outlet pipe 203 is pushed up. The end is connected to the air-permeable shell 208 and the air extraction pipe 206 to achieve gas communication. At this time, the button controller 204 is operated to control the air extraction pump 205 to perform a single air extraction action. The single air extraction volume is set in advance by the button controller 204 and matches the volume of the transparent high-temperature resistant tank 201. Then, the air inlet pipe 202 is directly buried in the boiler smoke to be collected, or a disposable extension tube is provided to the air inlet pipe 202 so that the extension tube is buried in the boiler smoke to be collected. In this way, the air in the transparent high-temperature resistant tank 201 passes through the air outlet pipe 203 and the The connecting shell 211, the breathable shell 208, the exhaust pipe 206, the exhaust pump 205 and the exhaust pipe 207 are then discharged into the environment. As the air pressure in the transparent high-temperature resistant tank 201 decreases, the smoke sample gradually fills the interior of the transparent high-temperature resistant tank 201 after passing through the air inlet pipe 202. After the exhaust pump 205 completes a single air extraction, the breathable shell 208 is pulled out of the connecting shell 211. The compressed return spring 214 pushes the piston 212 back to the top, and the piston 212 isolates the outlet pipe 203 from the outside world, and the air inlet pipe 203 is blocked again with the sealing cover 5. 2 The top end can make the flue gas sample in the transparent high-temperature resistant tank 201 ready for subsequent component detection. The design of the flue gas sampling device for the entire boiler energy efficiency test effectively solves the problem of lack of a clean auxiliary structure for reducing the accumulation of flue gas samples and flue gas impurities in the sampling power structure and the corresponding pipeline, resulting in the continuous accumulation of solid impurities in different flue gases in the power structure and the corresponding pipeline, thereby affecting the internal cleanliness. Even when different flue gas samples are not discharged cleanly, it will cause confusion in the collection of different flue gas samples, thereby affecting the sampling cleanliness and accuracy of the sampling device.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flue gas sampling device for boiler energy efficiency testing, comprising a protective shell (1), characterized in that: A cleaning auxiliary mechanism (2) is provided on the outer side of the protective shell (1); The cleaning auxiliary mechanism (2) comprises a transparent high-temperature resistant tank (201) and an air pump (205); the inner wall of the transparent high-temperature resistant tank (201) is fixedly connected to an air inlet pipe (202) and an air outlet pipe (203); the left side of the protective shell (1) is fixedly connected to a button controller (204); the input end of the air pump (205) is fixedly connected to an air pump (206); the output end of the air pump (205) is fixedly connected to an exhaust pipe (207); the air pump (206) is fixedly connected to an exhaust pipe (207); ) is clamped on the outer surface of a breathable shell (208), the outer surface of the breathable shell (208) is fixedly connected to a first sealing sleeve (209), the back of the breathable shell (208) is fixedly connected to a top column (210), the outer surface of the transparent high-temperature resistant tank (201) is fixedly connected to a docking shell (211), the interior of the docking shell (211) is slidably connected to a piston (212) and a limiting rod (213), and the outer surface of the limiting rod (213) is sleeved with a return spring (214).

2. A flue gas sampling device for boiler energy efficiency testing according to claim 1, characterized in that: The outer surface of the air pump (205) is fixedly connected to the inner wall of the protective shell (1), the outer surface of the docking shell (211) is fixedly connected to the top of the air outlet pipe (203), the air pump (205) is electrically connected to the button controller (204) through a wire, the outer surface of the air extraction pipe (206) and the outer surface of the exhaust pipe (207) are both fixedly connected to the inner wall of the protective shell (1), the end of the top column (210) away from the breathable shell (208) contacts the front of the piston (212), the back of the piston (212) is fixedly connected to the end of the limiting rod (213) close to the piston (212), the two ends of the return spring (214) are respectively in contact with the back of the piston (212) and the inner wall of the docking shell (211), a sealing cover (5) is provided above the air inlet pipe (202), and the outer surface of the sealing cover (5) is fixedly connected to the anti-slip sleeve (6).

3. A flue gas sampling device for boiler energy efficiency testing according to claim 2, characterized in that: A second sealing sleeve (7) is fixedly connected to the outer surface of the air inlet pipe (202), and the outer surface of the second sealing sleeve (7) is in contact with the inner wall of the sealing cover (5).

4. The flue gas sampling device for boiler energy efficiency testing according to claim 1, characterized in that: The top end of the transparent high-temperature resistant tank (201) is fixedly connected to a handle support (8), and the inner wall of the handle support (8) is fixedly connected to a pull rod (9).

5. The flue gas sampling device for boiler energy efficiency testing according to claim 4, characterized in that: A grip (10) is provided inside the handle support (8), and the inner wall of the grip (10) is rotatably connected to the outer surface of the pull rod (9).

6. The flue gas sampling device for boiler energy efficiency testing according to claim 1, characterized in that: The outer surface of the docking shell (211) is fixedly connected to an anti-skid pad (3), and the outer surface of the anti-skid pad (3) is fixedly connected to a plurality of identical anti-skid convex discs (4).

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