Lining pipe sampling rod structure of flue gas sampler

Abstract

The utility model discloses a flue gas sampler lining tube sampling rod structure, which comprises a lining tube, a piston is slidably mounted in the lining tube, and a sampling rod is fixedly mounted at one end of the piston. According to the flue gas sampling device, active flue gas extraction is achieved, in the moving process of the sampling rod, the connecting ring and the connecting rod drive the scraping ring to move, the scraping ring can scrape off dust on the side wall of the lining pipe, in the sampling process, the lining pipe can be cleaned, in the sliding process of the scraping ring, the cleaning ring slides on the ball screw, and the cleaning ring can clean the dust on the side wall of the lining pipe. A cleaning ring rotates in the sliding process, the cleaning ring can clean dust scraped by a scraping ring, and when a sample needs to be collected or detected, due to the fact that a second one-way valve only allows smoke to enter a lining pipe through a pipeline, and a first one-way valve only allows the smoke to be discharged from a smoke discharging pipe through the interior of the lining pipe, the cleaning ring can clean the dust scraped by the scraping ring; the sampling rod is pushed, and the smoke in the lining pipe is exhausted through the smoke exhaust pipe, so that the collection of the smoke is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke samplers, in particular to a sampling rod structure of an inner liner tube of a smoke sampler. Background Art

[0002] A flue gas sampler is a device used to collect and analyze various components and pollutants in flue gas. It extracts flue gas from the source or outlet into the sampler for analysis to understand the composition, concentration and pollutant emissions in the flue gas. Flue gas samplers play an indispensable role in environmental monitoring.

[0003] The flue gas sampling tube is usually used for sampling on a straight pipe section with uniform and stable airflow distribution, and resistance components should be avoided. In a circular flue, two mutually perpendicular sampling holes will be set on the selected sampling section, dividing the flue section into a certain number of concentric equal-area circular rings, and four sampling points will be set along the center line of the two sampling holes. Therefore, the flue gas sampler generally extends the smoke sampling tube into the pipeline for sampling.

[0004] Patent document CN203881582U discloses a flue gas sampling tube. The sampling tube comprises a tube body (1), the top of the tube body (1) is a sampling tube head (2), the sampling tube head (2) comprises a sampling nozzle (21) and a cup-shaped body (22) for placing a glass fiber filter cartridge (3), characterized in that: a depression (4) is horizontally arranged at the mouth of the cup-shaped body (22), the depression (4) is opened along the inner wall of the cup-shaped body (21), and a metal gasket (5) arranged in a split manner is arranged in the depression (4), the metal gasket (5) is in an arc shape, and the shape and size of the metal gasket (5) are consistent with the shape and size of the depression (4). The utility model has the advantages of reasonable design and practical functions, and can conveniently separate the glass fiber filter cartridge from the sampling tube.

[0005] As in the prior art of the above-mentioned patent, the above-mentioned flue gas sampling tube is to expose the sampling tube to the flue gas environment or pipeline to allow the flue gas to be naturally inhaled. However, when the flue gas sampling tube is used to sample the pipeline, one end of the sampling tube is generally placed in a through hole opened above the pipeline. At this time, the sampling tube and the direction of the flue gas flow are just perpendicular. If the flue gas flow rate inside the pipeline is too fast, only a small amount of flue gas will enter the sampling tube. Moreover, after the sampling tube is extended into the inside of the flue gas pipeline and the sampling is completed and the sampling tube is taken out, there will be a large number of flue gas dust particles attached to the surface of the sampling tube. If it is not cleaned in time, it will affect the normal sampling work. Utility Model Content

[0006] The utility model aims to provide a sampling rod structure of a liner tube of a smoke sampler to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sampling rod structure of an inner liner tube of a smoke sampler, comprising an inner liner tube, a piston is slidably installed inside the inner liner tube, a sampling rod is fixedly installed on one end of the piston, a smoke suction pipe and a smoke exhaust pipe are respectively connected and installed on one end of the inner liner tube, a second one-way valve is arranged inside the smoke suction pipe, a first one-way valve is arranged inside the smoke exhaust pipe, a connecting ring is fixedly installed on the sampling rod, two connecting rods are fixedly installed on the side wall of the connecting ring, a scraper ring is fixedly installed on one end of the two connecting rods, and the scraper ring is slidably connected to the inner liner tube.

[0008] As a further description of the above technical solution: multiple fixing plates are fixedly installed on the inner lining tube, ball screws are fixedly connected between the multiple fixing plates, the ball screws are slidingly connected to the scraper rings, multiple cleaning rings are rotatably installed on the side walls of the scraper rings, and the multiple cleaning rings are threadedly connected to the ball screws.

[0009] As a further description of the above technical solution: a plurality of side walls of the cleaning rings are provided with brushes, and a plurality of the brushes are provided on one side of the liner tube.

[0010] As a further description of the above technical solution: an elbow pipe is threadedly installed at one end of the smoking pipe.

[0011] As a further description of the above technical solution: one end of the sampling rod is provided with anti-slip grooves.

[0012] The utility model provides a sampling rod structure of a liner tube of a smoke sampler. The utility model has the following beneficial effects: the utility model passes a smoke pipe into the interior of a pipeline to be sampled, pulls the sampling rod outward, and the sampling rod drives the piston to move. During the movement of the piston, negative pressure is generated inside the liner tube, and the smoke inside the pipeline enters the liner tube through the smoke pipe, thereby realizing active extraction of smoke. During the movement of the sampling rod, the connecting ring and the connecting rod drive the scraping ring to move, and the scraping ring can scrape off the dust on the side wall of the liner tube. During the sampling process, the liner tube can be cleaned. During the sliding process of the scraping ring, the cleaning ring slides on the ball screw, and the cleaning ring rotates during the sliding process. The cleaning ring can clean the dust scraped off by the scraping ring. When the sample needs to be collected or tested, since the second one-way valve only allows smoke to enter the interior of the liner tube through the pipeline, and the first one-way valve only allows smoke to be discharged from the exhaust pipe through the interior of the liner tube, the sampling rod is pushed, and the smoke inside the liner tube is discharged through the exhaust pipe, thereby realizing the collection of smoke.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0014] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a sampling rod structure of a liner tube of a smoke sampler proposed by the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model after the sampling rod is pulled out from the inner liner tube;

[0017] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the liner tube and the sampling rod of the utility model.

[0019] Legend:

[0020] 1. Liner pipe; 2. Smoke extraction pipe; 3. Smoke exhaust pipe; 4. Sampling rod; 5. Piston; 6. Fixed plate; 7. Ball screw; 8. Cleaning ring; 9. Brush; 10. Scraper ring; 11. Connecting rod; 12. Connecting ring; 13. Anti-slip pattern; 14. First one-way valve; 15. Second one-way valve; 16. Elbow pipe. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1-4A sampling rod structure of an inner liner tube of a smoke sampler comprises an inner liner tube 1, a piston 5 is slidably installed inside the inner liner tube 1, a sampling rod 4 is fixedly installed at one end of the piston 5, a smoke suction pipe 2 and a smoke exhaust pipe 3 are connected and installed at one end of the inner liner tube 1, a second one-way valve 15 is arranged inside the smoke suction pipe 2, a first one-way valve 14 is arranged inside the smoke exhaust pipe 3, a connecting ring 12 is fixedly installed on the sampling rod 4, two connecting rods 11 are fixedly installed on the side wall of the connecting ring 12, a scraping ring 10 is fixedly installed at one end of the two connecting rods 11, and the scraping ring 10 is slidably connected to the inner liner tube 1; the smoke suction pipe 2 is passed into the interior of the pipeline to be sampled, and the sampling rod 4 is pulled outward, and the sampling rod 4 drives the piston 5 During the movement of the piston 5, a negative pressure is generated inside the inner liner tube 1, and the smoke inside the pipe enters the inner liner tube 1 through the smoke extraction pipe 2, thereby realizing active extraction of smoke. During the movement of the sampling rod 4, the connecting ring 12 and the connecting rod 11 drive the scraper ring 10 to move, and the scraper ring 10 can scrape off the dust on the side wall of the inner liner tube 1. During the sampling process, the inner liner tube 1 can be cleaned. When it is necessary to collect or test the sample, since the function of the second one-way valve 15 is to only allow smoke to enter the inner liner tube 1 through the pipe, and the function of the first one-way valve 14 is to only allow smoke to be discharged from the exhaust pipe 3 through the inner liner tube 1, the sampling rod 4 is pushed, and the smoke inside the inner liner tube 1 is discharged through the exhaust pipe 3, thereby realizing the collection of smoke.

[0023] As the preferred technical solution of this embodiment, a plurality of fixing plates 6 are fixedly installed on the inner lining tube 1, a ball screw 7 is fixedly connected between the plurality of fixing plates 6, the ball screw 7 is slidably connected to the scraper ring 10, a plurality of cleaning rings 8 are rotatably installed on the side wall of the scraper ring 10, and the plurality of cleaning rings 8 are threadedly connected to the ball screw 7; during the sliding process of the scraper ring 10, the cleaning ring slides on the ball screw 7, and the cleaning ring rotates during the sliding process, and the cleaning ring can clean the dust scraped by the scraper ring 10.

[0024] As a preferred technical solution of this embodiment, the side walls of the multiple cleaning rings 8 are provided with brushes 9, and the multiple brushes 9 are arranged on one side of the liner tube 1; the brushes 9 can increase the cleaning effect of the cleaning rings 8, so that the scraped dust and impurities are completely cleaned.

[0025] As a preferred technical solution of this embodiment, an elbow pipe 16 is threadedly installed at one end of the smoke extraction pipe 2; when the liner pipe 1 is sampled above the pipeline, that is, the liner pipe 1 is perpendicular to the direction of smoke flow, the elbow pipe 16 can be installed at one end of the smoke extraction pipe 2 to make it easier to extract smoke.

[0026] As a preferred technical solution of this embodiment, one end of the sampling rod 4 is provided with an anti-slip pattern 13; the function of the anti-slip pattern 13 is to increase the friction between the hand and the sampling rod 4, prevent slipping, and increase the stability during the sampling process.

[0027] 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 smoke sampler liner tube sampling rod structure, comprising an liner tube (1), characterized in that: A piston (5) is slidably mounted inside the inner liner tube (1), a sampling rod (4) is fixedly mounted on one end of the piston (5), a smoke extraction pipe (2) and a smoke exhaust pipe (3) are respectively connected and mounted on one end of the inner liner tube (1), a second one-way valve (15) is arranged inside the smoke extraction pipe (2), a first one-way valve (14) is arranged inside the smoke exhaust pipe (3), a connecting ring (12) is fixedly mounted on the sampling rod (4), two connecting rods (11) are fixedly mounted on the side wall of the connecting ring (12), a scraper ring (10) is fixedly mounted on one end of the two connecting rods (11), and the scraper ring (10) is slidably connected to the inner liner tube (1).

2. A sampling rod structure of a liner tube of a flue gas sampler according to claim 1, characterized in that: A plurality of fixing plates (6) are fixedly mounted on the inner liner tube (1), a ball screw (7) is fixedly connected between the plurality of fixing plates (6), the ball screw (7) is slidably connected to a scraper ring (10), a plurality of cleaning rings (8) are rotatably mounted on the side wall of the scraper ring (10), and the plurality of cleaning rings (8) are threadedly connected to the ball screw (7).

3. The sampling rod structure of the inner liner tube of a flue gas sampler according to claim 2 is characterized in that: The side walls of the plurality of cleaning rings (8) are provided with brushes (9), and the plurality of brushes (9) are arranged on one side of the liner tube (1).

4. The sampling rod structure of the inner liner tube of a smoke sampler according to claim 1 is characterized in that: An elbow pipe (16) is threadedly mounted on one end of the smoking pipe (2).

5. The sampling rod structure of the inner liner tube of a smoke sampler according to claim 1 is characterized in that: One end of the sampling rod (4) is provided with an anti-slip pattern (13).

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