Coal-fired boiler air volume measuring device

Abstract

The utility model discloses a coal-fired boiler air volume measuring device, which relates to the technical field of air volume measuring devices and comprises a silencer, two ends of the silencer are respectively and fixedly connected with a first pipeline and a second pipeline, a first transmission component is arranged in the first pipeline, a second transmission component is arranged on the outer side of the first transmission component, and the second transmission component is fixedly connected with the silencer. And first wiping assemblies are arranged on the outer sides of the first transmission assembly and the second transmission assembly correspondingly, and second wiping assemblies are arranged at the bottoms of the first transmission assembly and the second transmission assembly correspondingly. By starting a motor, a first screw rod is driven to rotate, a gear is driven to rotate, a toothed chain is driven to operate, a second screw rod is driven to rotate, two transmission plates are driven to move, supporting rods are driven to move, and wiping blocks are driven to enter an air inlet pipe and an exhaust pipe; and therefore, the possibility of blockage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air volume measuring devices, and particularly relates to an air volume measuring device for a coal-fired boiler. Background Art

[0002] The measured air volume is an important parameter index in the combustion process of a coal-fired power plant boiler. Correctly controlling the air volume can ensure the optimized combustion of the coal-fired boiler and improve the utilization rate of fuel energy.

[0003] The utility model patent with the publication number of CN204043722U discloses an air volume measuring device for a coal-fired boiler, which includes a resistive sheet muffler installed in the air inlet system of the coal-fired power plant boiler. A gas flow pipeline I and a gas flow pipeline II are respectively connected to the inlet and outlet of the resistive muffler; a plurality of air guide pipes are evenly arranged along the circumferential direction on the pipeline wall of the gas flow pipeline I; a plurality of air guide pipes are evenly arranged along the circumferential direction on the pipeline wall of the gas flow pipeline II; the other ends of all the air guide pipes on the pipeline wall of the gas flow pipeline I are commonly connected to the air volume measuring device inlet pipe; the other ends of all the air guide pipes on the pipeline wall of the gas flow pipeline II are commonly connected to the air volume measuring device outlet pipe; the air volume measuring device inlet pipe and the outlet pipe are respectively connected to two ports of the gas flow measuring device. This device utilizes the structure of the installed resistive sheet muffler and the principle of fluid mechanics to realize air volume measurement. The structure is simple, the implementation is easy, the cost is low, and it meets the requirements of industrial measurement and control.

[0004] However, there are still some disadvantages in the actual use of the above device. More obviously, after the device is used for a long time, some impurities may block the air guide pipes, resulting in the possibility of inaccurate detection.

[0005] Therefore, it is very necessary to invent an air volume measuring device for a coal-fired boiler to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide an air volume measuring device for a coal-fired boiler to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the utility model provides the following technical solution: an air volume measuring device for a coal-fired boiler, which includes a muffler. The two ends of the muffler are respectively fixedly connected with a first pipeline and a second pipeline. A first transmission assembly is arranged inside the first pipeline. A second transmission assembly is arranged outside the first transmission assembly. First wiping assemblies are arranged outside both the first transmission assembly and the second transmission assembly. Second wiping assemblies are arranged at the bottoms of both the first transmission assembly and the second transmission assembly. A detection assembly is arranged at the bottoms of the first pipeline and the second pipeline.

[0008] Preferably, the first transmission assembly includes a motor fixedly connected to the top of the inner cavity of the first pipe. The driving end of the motor is fixedly connected to a first screw rod. The first screw rod penetrates through the first pipe and is rotatably connected to the first pipe. A transmission plate is threadedly connected to the outside of the first screw rod. Two telescopic rods are fixedly connected between the top of the transmission plate and the inner cavity of the first pipe.

[0009] Preferably, the first wiping assembly includes six support rods fixedly connected to the bottom of the transmission plate. A wiping block is fixedly connected to the bottom of the support rod.

[0010] Preferably, the second wiping assembly includes a connecting block fixedly connected to the bottom of the first screw rod. A wiping frame is fixedly connected to the end of the connecting block.

[0011] Preferably, the second transmission assembly includes gears fixedly connected to the outside of the first screw rod. There are two gears. A chain is rotatably connected to the outside of the two gears. A second screw rod is fixedly connected to the inside of the second gear. The second screw rod penetrates through the second pipe and is rotatably connected to the second pipe.

[0012] Preferably, a plurality of air inlet pipes are connected to the bottom of the first pipe. The bottom of the air inlet pipe is connected to an air volume measurement air inlet box. The air volume measurement air inlet box is slidably connected to the outside of the wiping frame. The bottom of the air volume measurement air inlet box is connected to a first connecting pipe. The end of the first connecting pipe is connected to a gas measurement device. The inside of the gas measurement device is connected to a second connecting pipe. The end of the second connecting pipe is connected to an air volume measurement air outlet box. The air volume measurement air outlet box is slidably connected to the outside of the wiping frame. The top of the air volume measurement air outlet box is connected to a plurality of exhaust pipes. The top of the exhaust pipe is connected to the inside of the second pipe.

[0013] The technical effects and advantages of the present utility model:

[0014] By starting the motor, the present utility model drives the first screw rod to rotate, drives the gear to rotate, drives the chain to operate, drives the second screw rod to rotate, drives the two transmission plates to move, drives the support rods to move, drives the wiping block into the air inlet pipe and the exhaust pipe, wipes the inside thereof, and reduces the possibility of blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 It is a top view structural schematic diagram of some internal components of the present utility model.

[0017] Figure 3 It is a bottom view structural schematic diagram of some internal components of the present utility model.

[0018] Figure 4 For the present utility model Figure 2 is a schematic diagram of the structure of area A in

[0019] In the figure: 1, muffler; 2, first pipeline; 3, second pipeline; 4, motor; 5, first screw; 6, drive plate; 7, telescopic rod; 8, support rod; 9, wiping block; 10, connecting block; 11, wiping frame; 12, gear; 13, tooth chain; 14, second screw; 15, intake pipe; 16, air volume measurement air inlet box; 17, first connecting pipe; 18, gas measurement device; 19, second connecting pipe; 20, air volume measurement air outlet box; 21, exhaust pipe. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] The present utility model provides a coal-fired boiler air volume measurement device as shown in Figures 1-4 , including a muffler 1. The two ends of the muffler 1 are respectively fixedly connected with a first pipeline 2 and a second pipeline 3. A first transmission component is arranged inside the first pipeline 2, a second transmission component is arranged outside the first transmission component, a first wiping component is arranged outside both the first transmission component and the second transmission component, a second wiping component is arranged at the bottom of both the first transmission component and the second transmission component, and a detection component is arranged at the bottom of the first pipeline 2 and the second pipeline 3.

[0022] Referring to Figure 1 and Figure 2 , the first transmission component includes a motor 4 fixedly connected to the top of the inner cavity of the first pipeline 2. The transmission end of the motor 4 is fixedly connected with a first screw 5. The first screw 5 penetrates through the first pipeline 2 and is rotatably connected with the first pipeline 2. A drive plate 6 is threadedly connected to the outside of the first screw 5. Two telescopic rods 7 are fixedly connected between the top of the drive plate 6 and the inner cavity of the first pipeline 2.

[0023] Among them, the first wiping component includes six support rods 8 fixedly connected to the bottom of the drive plate 6. The bottom of the support rod 8 is fixedly connected with a wiping block 9.

[0024] And, the second wiping component includes a connecting block 10 fixedly connected to the bottom of the first screw 5. The end of the connecting block 10 is fixedly connected with a wiping frame 11.

[0025] In addition, the second transmission component includes gears 12 fixedly connected to the outside of the first screw rod 5. There are two gears 12, and a tooth chain 13 is rotatably connected to the outside of the two gears 12. A second screw rod 14 is fixedly connected inside the second gear 12. The second screw rod 14 penetrates through the second pipe 3 and is rotatably connected to the second pipe 3.

[0026] Among them, a plurality of air inlet pipes 15 are connected to the bottom of the first pipe 2. The bottom of the air inlet pipe 15 is connected to an air volume measurement air inlet box 16. The air volume measurement air inlet box 16 is slidably connected to the outside of the wiping frame 11. The bottom of the air volume measurement air inlet box 16 is connected to a first connecting pipe 17. The end of the first connecting pipe 17 is connected to a gas measurement device 18. The inside of the gas measurement device 18 is connected to a second connecting pipe 19. The end of the second connecting pipe 19 is connected to an air volume measurement air outlet box 20. The inside of the air volume measurement air outlet box 20 is slidably connected to the outside of the wiping frame 11. The top of the air volume measurement air outlet box 20 is connected to a plurality of exhaust pipes 21. The top of the exhaust pipes 21 is connected to the inside of the second pipe 3.

[0027] Through the above components, it is convenient that when the air inlet pipe 15 and the exhaust pipe 21 are used for too long, the connection between the gas measurement device 18 and the first connecting pipe 17 and the second connecting pipe 19 can be cancelled first, and then the motor 4 is started to drive the first screw rod 5 to rotate, thereby driving the gear 12 to rotate, thereby driving the tooth chain 13 to operate, thereby driving the second screw rod 14 to rotate, thereby driving the two transmission plates 6 to move, thereby driving the support rod 8 to move, thereby driving the wiping block 9 into the air inlet pipe 15 and the exhaust pipe 21 to wipe the inside thereof, thereby reducing the possibility of blockage.

[0028] At the same time, the rotation of the first screw rod 5 and the second screw rod 14 will drive the connecting block 10 to move, thereby driving the wiping frame 11 to move, thereby wiping the inside of the air volume measurement air inlet box 16 and the air volume measurement air outlet box 20, thereby reducing the possibility of impurities adhering to the inside thereof.

[0029] The working principle of the present utility model:

[0030] During actual use, when the air inlet pipe 15 and the exhaust pipe 21 are used for too long, the connection between the gas measurement device 18 and the first connecting pipe 17 and the second connecting pipe 19 can be cancelled first, and then the motor 4 is started to drive the first screw rod 5 to rotate, thereby driving the gear 12 to rotate, thereby driving the tooth chain 13 to operate, thereby driving the second screw rod 14 to rotate, thereby driving the two transmission plates 6 to move, thereby driving the support rod 8 to move, thereby driving the wiping block 9 into the air inlet pipe 15 and the exhaust pipe 21 to wipe the inside thereof, thereby reducing the possibility of blockage.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A coal-fired boiler air volume measuring device, characterized in that: The invention comprises a muffler (1), wherein two ends of the muffler (1) are respectively fixedly connected with a first pipe (2) and a second pipe (3), a first transmission component is arranged inside the first pipe (2), a second transmission component is arranged outside the first transmission component, a first wiping component is arranged outside the first transmission component and the second transmission component, a second wiping component is arranged at the bottom of the first transmission component and the second transmission component, and a detection component is arranged at the bottom of the first pipe (2) and the second pipe (3).

2. A coal-fired boiler air volume measuring device according to claim 1, characterized in that: The first transmission assembly comprises a motor (4) fixedly connected to the top of the inner cavity of the first pipe (2); a first screw rod (5) is fixedly connected to the transmission end of the motor (4); the first screw rod (5) passes through the first pipe (2) and is rotatably connected to the first pipe (2); a transmission plate (6) is threadedly connected to the outer side of the first screw rod (5); and two telescopic rods (7) are fixedly connected between the top of the transmission plate (6) and the inner cavity of the first pipe (2).

3. A coal-fired boiler air volume measuring device according to claim 2, characterized in that: The first wiping assembly comprises six support rods (8) fixedly connected to the bottom of the transmission plate (6), and a wiping block (9) is fixedly connected to the bottom of the support rods (8).

4. A coal-fired boiler air volume measuring device according to claim 3, characterized in that: The second wiping assembly comprises a connecting block (10) fixedly connected to the bottom of the first screw rod (5), and a wiping frame (11) is fixedly connected to the end of the connecting block (10).

5. A coal-fired boiler air volume measuring device according to claim 4, characterized in that: The second transmission assembly comprises a gear (12) fixedly connected to the outside of the first screw (5), wherein two gears (12) are provided, and a toothed chain (13) is rotatably connected to the outside of the two gears (12), and a second screw (14) is fixedly connected inside the second gear (12), and the second screw (14) passes through the second pipe (3) and is rotatably connected to the second pipe (3).

6. A coal-fired boiler air volume measuring device according to claim 5, characterized in that: The bottom of the first pipe (2) is connected to a plurality of air inlet pipes (15), the bottom of the air inlet pipe (15) is connected to an air volume measurement air inlet box (16), the air volume measurement air inlet box (16) is slidably connected to the outside of the wiping frame (11), the bottom of the air volume measurement air inlet box (16) is connected to a first connecting pipe (17), the end of the first connecting pipe (17) is connected to a gas measuring device (18), the inside of the gas measuring device (18) is connected to a second connecting pipe (19), the end of the second connecting pipe (19) is connected to an air volume measurement air outlet box (20), the inside of the air volume measurement air outlet box (20) is slidably connected to the outside of the wiping frame (11), the top of the air volume measurement air outlet box (20) is connected to a plurality of exhaust pipes (21), the top of the exhaust pipe (21) is connected to the inside of the second pipe (3).

Images