Adjusting and flow stabilizing structure of flue gas tester
By introducing an adjustment plate, slide groove, and bidirectional threaded rod structure into the flue gas tester, the problem of insufficient flexibility in adjusting the air intake volume is solved, achieving flexible adjustment of the air intake volume and stability of the airflow, thus improving the detection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HELISHENG TESTING TECHNOLOGY CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-01
AI Technical Summary
Existing flue gas testers have low flexibility in adjusting the air intake volume, making it difficult to meet the diverse testing needs under different operating conditions.
It adopts an adjustment plate, slide groove and bidirectional threaded rod structure. By rotating the handle, the slide plate is driven to move in the opposite direction in the slide groove, changing the size of the connecting groove to adjust the air intake volume. The airflow is sealed by the sealing ring and baffle structure.
It enables flexible adjustment of the air intake, improves the detection effect, ensures the stability and sealing of the airflow, and reduces the possibility of flue gas backflow.
Smart Images

Figure CN224188046U_ABST
Abstract
Description
A flue gas tester with adjustable flow stabilization structure Technical Field
[0001] This utility model relates to the field of flue gas testing technology, specifically a flue gas testing instrument with adjustable and stable flow structure. Background Technology
[0002] The flue gas analyzer uses the Pitot tube isokinetic sampling gravimetric method to capture particulate matter in pipelines and the constant potential electrolysis method to qualitatively and quantitatively determine harmful gases. It can be used by environmental protection, health, labor, safety supervision, military, scientific research, education and other departments. It can be used to determine the emission concentration and total amount of flue gas dust from various boilers and kilns, as well as the dust removal and desulfurization efficiency of equipment. It can also measure flue gas dynamic pressure, flue gas static pressure, pressure before the flow meter, temperature before the flow meter, flue gas temperature, moisture content and isokinetic suction velocity, etc.
[0003] An investigation revealed that a Chinese utility model patent discloses a flue gas testing instrument with an adjustable flow stabilization structure (publication number: CN219391954U), comprising a main body and a flue gas pipe, and an air intake mechanism located on the left side of the main body. The air intake mechanism includes a first clamping plate, a second clamping plate located at the bottom of the first clamping plate, a pipe groove at the top of the first clamping plate, and screws passing through both sides of the top of the first clamping plate. Nuts are fitted onto the bottom of one side wall of each of the two sets of screws and are located at the bottom of the second clamping plate. Fixing plates are provided at the bottom of the front and rear side walls of the first clamping plate and at the top of the front and rear side walls of the second clamping plate.
[0004] In the aforementioned patent, the card slot one and card slot two are of different sizes. When conducting flue gas testing, card slot one and card slot two of different sizes can be freely selected to control the air intake, which helps to improve the testing effect. However, only card slot one and card slot two are provided on the card plate three. This setting results in low flexibility in adjusting the air intake and makes it difficult to meet the diverse testing needs under different working conditions.
[0005] Therefore, this utility model provides a flue gas tester adjustment and stabilization structure to solve the above problems. Summary of the Invention
[0006] (a) Technical problems to be solved
[0007] This invention provides a flue gas tester with an adjustable flow stabilization structure, which aims to solve the problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, the present invention provides the following technical solution: a flue gas tester regulating flow stabilization structure, including an regulating plate, a first sliding groove is provided inside the regulating plate, a second sliding groove and a third sliding groove are provided on both sides of the regulating plate respectively, the second sliding groove and the third sliding groove are connected to the first sliding groove, and an regulating mechanism is provided on the regulating plate.
[0010] The adjustment mechanism includes a sliding plate, the side surface of which is in contact with the inner wall of the first slide groove. A first connecting post is fixedly connected to one side of the sliding plate and inserted into the inside of the second slide groove. A first support block is fixedly connected to one side of the adjustment plate. A bidirectional threaded rod is rotatably connected to the first support block. A threaded block is screwed onto the side surface of the bidirectional threaded rod. One side of the threaded block is fixedly connected to the end of the first connecting post away from the adjustment plate. A handle is fixedly connected to one end of the bidirectional threaded rod.
[0011] As a preferred technical solution of this application, the adjustment mechanism further includes a second connecting column. One end of the second connecting column is fixedly connected to the side of the slide plate away from the first connecting column. The second connecting column is inserted into the interior of the third slide groove. A second support block is fixedly connected to the side of the adjustment plate away from the first support block. A limit rod is fixedly connected to the second support block. A slider is slidably connected to the side surface of the limit rod. One side of the slider is fixedly connected to the end of the second connecting column away from the adjustment plate.
[0012] As a preferred technical solution of this application, the top and bottom of the adjusting plate are provided with connecting grooves, the connecting grooves are connected to the first sliding groove, a connector is inserted into the inside of the connecting groove, a sealing ring is fixedly connected to the inner wall of the connecting groove, the inner wall of the sealing ring is in contact with the side surface of the connector, the connector and the adjusting plate are provided with connecting holes, a flue pipe is sleeved on the connector, and a fastening ring is sleeved on the side surface of the flue pipe.
[0013] As a preferred technical solution of this application, the adjustment plate is symmetrically provided with auxiliary grooves inside, the auxiliary grooves are connected to the first sliding groove, and several rotating shafts are fixedly connected inside the auxiliary grooves. Each rotating shaft has a roller rotatably connected to its side surface, and the side surface of the roller is in contact with the side surface of the sliding plate.
[0014] As a preferred technical solution of this application, a first baffle is fixedly connected to one side of the skateboard, and a slot adapted to the first baffle is provided on the skateboard.
[0015] As a preferred technical solution of this application, a fixing plate is fixedly connected to the inner wall of the flue pipe, a through groove is opened on the fixing plate, and a second baffle is rotatably connected to the top of the fixing plate.
[0016] (III) Beneficial Effects
[0017] This utility model has a simple structure and is easy to use. With the arrangement of the sliding plate, the bidirectional threaded rod, the threaded block and the first connecting column, the operator can drive the two sliding plates to move in opposite directions inside the first sliding groove by simply turning the handle. This allows the size of the connecting groove space to be changed freely, thereby realizing the adjustment of the flue gas intake and improving the flexibility of the intake adjustment. Attached Figure Description
[0018] Figure 1 is a schematic diagram of a flue gas tester's adjustable flow stabilization structure;
[0019] Figure 2 is a schematic diagram of the installation of the sliding plate in the regulating and stabilizing structure of a flue gas tester;
[0020] Figure 3 is a cross-sectional view of the regulating plate in the regulating and stabilizing structure of a flue gas tester;
[0021] Figure 4 is a cross-sectional view of the regulating plate in the regulating and stabilizing structure of a flue gas tester.
[0022] Figure 5 is a cross-sectional view of the regulating plate in the regulating and stabilizing structure of a flue gas tester.
[0023] In the picture:
[0024] 1. Adjusting plate; 2. First slide groove; 3. Connecting groove; 4. Second slide groove; 5. Third slide groove; 6. Connecting hole; 7. Connecting piece; 8. Flue gas pipe; 9. Fastening ring; 10. Slide plate; 11. First support block; 12. Double-sided threaded rod; 13. Threaded block; 14. First connecting post; 15. Rotary handle; 16. Second support block; 17. Limiting rod; 18. Sliding block; 19. Second connecting post; 20. First baffle; 21. Slot; 22. Auxiliary groove; 23. Roller; 24. Fixing plate; 25. Through groove; 26. Second baffle. Detailed Implementation
[0025] 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.
[0026] This utility model provides a flue gas tester adjustment and flow stabilization structure, as shown in Figures 1, 2 and 3. It includes an adjustment plate 1, with a first sliding groove 2 inside the adjustment plate 1. A second sliding groove 4 and a third sliding groove 5 are respectively opened on both sides of the adjustment plate 1. The second sliding groove 4 and the third sliding groove 5 are connected to the first sliding groove 2. An adjustment mechanism is provided on the adjustment plate 1.
[0027] The adjustment mechanism includes a slide plate 10, the side surface of which is in contact with the inner wall of the first slide groove 2. A first connecting post 14 is fixedly connected to one side of the slide plate 10 and inserted into the interior of the second slide groove 4. A first support block 11 is fixedly connected to one side of the adjustment plate 1. A bidirectional threaded rod 12 is rotatably connected to the first support block 11. A threaded block 13 is screwed onto the side surface of the bidirectional threaded rod 12. One side of the threaded block 13 is fixedly connected to the end of the first connecting post 14 away from the adjustment plate 1. A rotating handle 15 is fixedly connected to one end of the bidirectional threaded rod 12.
[0028] The adjustment mechanism also includes a second connecting post 19. One end of the second connecting post 19 is fixedly connected to the side of the slide plate 10 away from the first connecting post 14. The second connecting post 19 is inserted into the interior of the third slide groove 5. A second support block 16 is fixedly connected to the side of the adjustment plate 1 away from the first support block 11. A limit rod 17 is fixedly connected to the second support block 16. A slider 18 is slidably connected to the side surface of the limit rod 17. One side of the slider 18 is fixedly connected to the end of the second connecting post 19 away from the adjustment plate 1.
[0029] The top and bottom of the adjusting plate 1 are provided with connecting grooves 3, which are connected to the first sliding groove 2. A connector 7 is inserted into the inside of the connecting groove 3. A sealing ring is fixedly connected to the inner wall of the connecting groove 3. The inner wall of the sealing ring is in contact with the side surface of the connector 7. Both the connector 7 and the adjusting plate 1 are provided with connecting holes 6. A flue gas pipe 8 is sleeved on the connector 7. A fastening ring 9 is sleeved on the side surface of the flue gas pipe 8.
[0030] During use, the operator can insert the connector 7 into the connecting groove 3. At this time, the side surface of the connector 7 fits against the inner wall of the sealing ring, ensuring the sealing of the connection. Then, the operator can pass bolts or other fasteners through the connecting hole 6 to fix the connector 7 and the adjusting plate 1 together. Next, the operator can put the flue gas pipe 8 on the connector 7 and use the fastening ring 9 to fix the flue gas pipe 8. The end of the flue gas pipe 8 away from the connector 7 is connected to the testing device. When conducting flue gas testing, the flue gas needs to pass through the connecting groove 3 to enter the flue gas pipe 8.
[0031] Two slide plates 10 are provided, and two sets of related parts are also provided. When the slide plate 10 slides in the first slide groove 2, it can change the size of the connecting groove 3. In actual use, when it is necessary to adjust the intake of flue gas, the operator can turn the handle 15. The handle 15 can drive the bidirectional threaded rod 12 to rotate. Since the threaded block 13 is screwed on the side surface of the bidirectional threaded rod 12, the threaded block 13 can move when the bidirectional threaded rod 12 rotates. When the threaded block 13 moves, it can drive the slide plate 10 to slide in the first slide groove 2 through the first connecting post 14, so that the two slide plates 10 move in opposite directions to change the size of the space of the connecting groove 3, thereby achieving the purpose of adjusting the intake of flue gas. When the slide plate 10 slides, the second connecting post 19 will also drive the slider 18 to slide on the limiting rod 17. The slider 18 and the limiting rod 17 can limit the slide plate 10, improving the stability of the slide plate 10 when it moves.
[0032] Furthermore, in order to improve the smoothness of the sliding plate 10, as shown in Figures 1, 4 and 5, the inside of the adjustment plate 1 is symmetrically provided with auxiliary grooves 22, which are connected to the first sliding groove 2. Several rotating shafts are fixedly connected inside the auxiliary grooves 22, and each rotating shaft has a roller 23 rotatably connected to its side surface. The side surface of the roller 23 is in contact with the side surface of the sliding plate 10.
[0033] When the skateboard 10 slides inside the first groove 2, the roller 23 will also assist the skateboard 10 in sliding by rotating on the shaft due to the influence of friction, thereby effectively reducing the friction when the skateboard 10 slides and improving the smoothness of the skateboard 10 sliding.
[0034] It should be noted that, in order to reduce the possibility of flue gas backflow, as shown in Figures 2, 3 and 5, a first baffle 20 is fixedly connected to one side of the slide plate 10, and a slot 21 adapted to the first baffle 20 is provided on the slide plate 10.
[0035] A fixing plate 24 is fixedly connected to the inner wall of the flue pipe 8. A through groove 25 is provided on the fixing plate 24. A second baffle 26 is rotatably connected to the top of the fixing plate 24.
[0036] The first baffle 20 on each slide 10 is inserted into the slot 21 on another slide 10. The setting of the first baffle 20 can effectively reduce the connection between the connecting groove 3 and the first slide groove 2, thereby reducing the possibility of smoke drifting out of the regulating plate 1 through the first slide groove 2. After the smoke enters the interior of the smoke pipe 8, the airflow will push up the second baffle 26 and flow towards the testing device. If the smoke flows back, the second baffle 26 will automatically fall under the action of gravity and close the through groove 25, so that the smoke cannot pass through the fixed plate 24, effectively reducing the possibility of smoke backflow.
[0037] 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 flue gas tester regulating and stabilizing structure, comprising an regulating plate (1), characterized in that: The adjusting plate (1) has a first sliding groove (2) inside. The adjusting plate (1) has a second sliding groove (4) and a third sliding groove (5) on its two sides respectively. The second sliding groove (4) and the third sliding groove (5) are connected to the first sliding groove (2). The adjusting plate (1) is provided with an adjusting mechanism. The adjusting mechanism includes a sliding plate (10). The side surface of the sliding plate (10) is in contact with the inner wall of the first sliding groove (2). A first connecting post (14) is fixedly connected to one side of the sliding plate (10). The first connecting post (14) is inserted into the interior of the second slide groove (4). A first support block (11) is fixedly connected to one side of the adjusting plate (1). A bidirectional threaded rod (12) is rotatably connected to the first support block (11). A threaded block (13) is screwed onto the side surface of the bidirectional threaded rod (12). One side of the threaded block (13) is fixedly connected to the end of the first connecting post (14) away from the adjusting plate (1). A rotating handle (15) is fixedly connected to one end of the bidirectional threaded rod (12).
2. The flue gas testing instrument flow stabilization and adjustment structure according to claim 1, characterized in that: The adjustment mechanism further includes a second connecting post (19), one end of which is fixedly connected to the side of the slide plate (10) away from the first connecting post (14). The second connecting post (19) is inserted into the interior of the third slide groove (5). A second support block (16) is fixedly connected to the side of the adjustment plate (1) away from the first support block (11). A limit rod (17) is fixedly connected to the second support block (16). A slider (18) is slidably connected to the side surface of the limit rod (17). One side of the slider (18) is fixedly connected to the end of the second connecting post (19) away from the adjustment plate (1).
3. The flue gas testing instrument flow stabilization structure according to claim 1, characterized in that: The top and bottom of the adjusting plate (1) are provided with connecting grooves (3), the connecting grooves (3) are connected to the first sliding groove (2), a connector (7) is inserted into the inside of the connecting groove (3), a sealing ring is fixedly connected to the inner wall of the connecting groove (3), the inner wall of the sealing ring is in contact with the side surface of the connector (7), the connector (7) and the adjusting plate (1) are provided with connecting holes (6), a flue gas pipe (8) is sleeved on the connector (7), and a fastening ring (9) is sleeved on the side surface of the flue gas pipe (8).
4. The flue gas testing instrument flow stabilization and adjustment structure according to claim 1, characterized in that: The adjustment plate (1) has symmetrical auxiliary grooves (22) inside. The auxiliary grooves (22) are connected to the first sliding groove (2). Several rotating shafts are fixedly connected inside the auxiliary grooves (22). Each rotating shaft has a roller (23) rotatably connected to its side surface. The side surface of the roller (23) is in contact with the side surface of the slide plate (10).
5. The flue gas testing instrument flow stabilization structure according to claim 1, characterized in that: A first baffle (20) is fixedly connected to one side of the slide plate (10), and a slot (21) adapted to the first baffle (20) is provided on the slide plate (10).
6. The flue gas tester's flow stabilization and adjustment structure according to claim 3, characterized in that: A fixing plate (24) is fixedly connected to the inner wall of the flue pipe (8). A through groove (25) is provided on the fixing plate (24). A second baffle (26) is rotatably connected to the top of the fixing plate (24).
Citation Information
Patent Citations
Adjusting and flow stabilizing structure of flue gas tester
CN219391954U