Smoke exhaust pipeline for industrial boiler

Abstract

The utility model discloses a smoke exhaust pipeline for industrial boilers, which comprises a pipeline body, the inner surface of the pipeline body is fixedly connected with two positioning rings, the interiors of the two positioning rings are rotatably connected with reciprocating screw rods, the bottom ends of the reciprocating screw rods are fixedly connected with driven gears, and the outer surface of the pipeline body is fixedly communicated with a protective cover. A driving motor is fixedly connected to the outer surface of the protection cover, the output end of the driving motor is in transmission connection with a driving gear, and the outer surface of the driving gear is rotationally connected with the inner surface of the protection cover. The driving motor drives the driving gear to rotate, so that the transmission belt rotates and drives the driven gear to rotate, then the reciprocating lead screw is driven to rotate, the reciprocating lead screw drives the driven ring to move in the rotating process, the inner wall of the pipeline body is cleaned by the scraper, the structure is simple, cleaning is convenient, and the practicability is high. And the pipeline is prevented from being cleaned after being detached, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a smoke exhaust pipeline for industrial boilers. Background Art

[0002] An industrial boiler is a device that uses the heat energy released by fuel combustion or other thermal energy to heat water or other working fluids to produce steam, hot water or other working fluids with specified parameters (temperature, pressure) and quality. During use, it is usually necessary to connect a smoke exhaust pipe to discharge the generated smoke to the outside.

[0003] In the prior art, for example, Chinese patent CN210717610U discloses a multi-angle plug-in teaching device for ideological and political education, including a cold water tank, with fixing mechanisms on both sides of the cold water tank, the cold water tank is fixedly mounted on the wall through the fixing mechanisms, a transparent window is opened on the outer wall of the cold water tank, tempered glass is fixedly mounted in the transparent window, water inlets are fixedly mounted on the outer walls on both sides of the cold water tank through fixing bolts, water outlets are fixedly mounted on the outer walls on both sides of the bottom of the cold water tank through fixing bolts, a circulating water pump is fixedly mounted on one side of the bottom end of the cold water tank, a condenser is fixedly mounted at the center position of the bottom end of the cold water tank, and a water outlet pipe is fixedly mounted on the outer wall of the cold water tank close to the circulating water pump.

[0004] After being used for a period of time, a lot of dust will adhere to the inner wall of the current smoke exhaust duct. When the dust accumulates, the inner diameter of the smoke exhaust duct will be easily reduced, thereby affecting the smoke exhaust effect. When cleaning the smoke exhaust duct, it is usually necessary to remove it from the boiler before cleaning. The steps are relatively cumbersome, take a lot of time, and have low cleaning efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a smoke exhaust pipe for an industrial boiler to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a smoke exhaust pipe for an industrial boiler, comprising a pipe body, two positioning rings fixedly connected to the inner surface of the pipe body, reciprocating screws rotatably connected inside the two positioning rings, a driven gear fixedly connected to the bottom end of the reciprocating screw, a protective cover fixedly connected to the outer surface of the pipe body, a driving motor fixedly connected to the outer surface of the protective cover, a driving gear transmission-connected to the output end of the driving motor, the outer surface of the driving gear is rotatably connected to the inner surface of the protective cover, a transmission belt is transmission-connected to the outer surface of the driving gear, the inner surface of the transmission belt is transmission-connected to the outer surface of the driven gear, a driven ring is meshed on the outer surface of the reciprocating screw, and scrapers are fixedly connected to the top and bottom ends of the driven ring.

[0007] As a further preference of this technical solution, an electrostatic dust removal net is fixedly connected to the inner surface of the pipe body. The top end of the reciprocating lead screw is fixedly connected with a support plate. An installation plate is arranged at the top end of the support plate. A brush is fixedly connected inside the installation plate, and the top end of the brush is in close contact with the bottom end of the electrostatic dust removal net.

[0008] As a further preference of this technical solution, two movable rods are slidably connected inside the support plate. The top ends of the two movable rods are fixedly connected with the bottom end of the installation plate, and return springs are sleeved on the outer surfaces of the two movable rods.

[0009] As a further preference of this technical solution, two positioning grooves are formed in the inner surface of the pipe body. Two positioning blocks are fixedly connected to the outer surface of the driven ring, and the outer surfaces of the two positioning blocks are respectively slidably connected with the inner surfaces of the two positioning grooves.

[0010] As a further preference of this technical solution, a collection box is threadedly connected to the bottom end of the pipe body. A sealing gasket is fixedly connected inside the collection box, and the top end of the sealing gasket is in close contact with the bottom end of the pipe body.

[0011] As a further preference of this technical solution, an air inlet pipe is fixedly communicated with the outer surface of the pipe body near the bottom end, and butt flanges are fixedly connected to both the air inlet pipe and the top end of the pipe body.

[0012] The utility model provides a smoke exhaust pipe for an industrial boiler, which has the following beneficial effects:

[0013] (1) In the utility model, the driving motor drives the driving gear to rotate, so that the transmission belt rotates and drives the driven gear to rotate, and then drives the reciprocating lead screw to rotate. During the rotation of the reciprocating lead screw, the driven ring is driven to move, realizing the cleaning of the inner wall of the pipe body by the scraper. The structure is simple and the cleaning is convenient. It avoids cleaning after disassembling the pipe, and improves the cleaning efficiency.

[0014] (2) In the utility model, the electrostatic dust removal net adsorbs the dust in the passing flue gas, realizing the primary purification effect of the flue gas. And further, the brush on the support plate driven by the reciprocating lead screw cleans the electrostatic dust removal net, effectively ensuring the dust removal effect of the electrostatic dust removal net. Description of the Drawings

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

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3Schematic diagram of the structure between the reciprocating screw rod and the driving motor of the present utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure of area A in it.

[0019] In the figure: 1, pipe body; 2, positioning ring; 3, reciprocating screw rod; 4, driven ring; 5, scraper; 6, driven gear; 7, transmission belt; 8, driving gear; 9, driving motor; 10, protective cover; 11, positioning groove; 12, positioning block; 13, support plate; 14, movable rod; 15, return spring; 16, mounting plate; 17, brush; 18, electrostatic dust removal net; 19, collection box; 20, sealing gasket; 21, intake pipe; 22, docking flange. Specific implementation mode

[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.

[0021] The present utility model provides a technical solution: As Figures 1-3 shown, in this embodiment, a smoke exhaust pipe for an industrial boiler includes a pipe body 1. Two positioning rings 2 are fixedly connected to the inner surface of the pipe body 1. A reciprocating screw rod 3 is rotatably connected inside the two positioning rings 2. The bottom end of the reciprocating screw rod 3 is fixedly connected to a driven gear 6. The outer surface of the pipe body 1 is fixedly communicated with a protective cover 10. A driving motor 9 is fixedly connected to the outer surface of the protective cover 10. The output end of the driving motor 9 is drivingly connected to a driving gear 8. The outer surface of the driving gear 8 is rotatably connected to the inner surface of the protective cover 10. The outer surface of the driving gear 8 is drivingly connected to a transmission belt 7. The inner surface of the transmission belt 7 is drivingly connected to the outer surface of the driven gear 6. A driven ring 4 is engaged with the outer surface of the reciprocating screw rod 3. Scrapers 5 are fixedly connected to the top end and the bottom end of the driven ring 4. Among them, by setting the reciprocating screw rod 3, the driven ring 4 can be driven to perform continuous up and down reciprocating motion, improving the cleaning effect on the inner wall of the pipe body 1. By setting the transmission belt 7, the driven gear 6 can be driven to rotate by the driving gear 8.

[0022] As Figure 2 and Figure 4 shown, an electrostatic dust removal net 18 is fixedly connected to the inner surface of the pipe body 1. A support plate 13 is fixedly connected to the top end of the reciprocating screw rod 3. An installation plate 16 is arranged at the top end of the support plate 13. A brush 17 is fixedly connected inside the installation plate 16. The top end of the brush 17 is in close contact with the bottom end of the electrostatic dust removal net 18. By setting the electrostatic dust removal net 18, the dust in the flue gas can be adsorbed for primary purification, and it can be avoided that the flue gas continues to accumulate when passing through the subsequent pipes.

[0023] As Figure 4As shown, two movable rods 14 are slidably connected inside the support plate 13. The tops of the two movable rods 14 are fixedly connected to the bottom end of the mounting plate 16. Return springs 15 are sleeved on the outer surfaces of the two movable rods 14, which can flexibly squeeze the brush 17 so that it can be in close contact with the electrostatic dust removal net 18.

[0024] As Figure 2 and Figure 3 shown, two positioning grooves 11 are formed on the inner surface of the pipe body 1. Two positioning blocks 12 are fixedly connected to the outer surface of the driven ring 4. The outer surfaces of the two positioning blocks 12 are respectively slidably connected to the inner surfaces of the two positioning grooves 11, which can position the driven ring 4 to prevent it from rotating.

[0025] As Figure 1 and Figure 2 shown, a collection box 19 is threadedly connected to the bottom end of the pipe body 1. A sealing gasket 20 is fixedly connected inside the collection box 19. The top end of the sealing gasket 20 is in close contact with the bottom end of the pipe body 1. By providing the sealing gasket 20, the sealing performance can be improved.

[0026] As Figure 2 and Figure 3 shown, an air inlet pipe 21 is fixedly communicated with the outer surface of the pipe body 1 near the bottom end. Docking flanges 22 are fixedly connected to both the air inlet pipe 21 and the top end of the pipe body 1. By providing the docking flanges 22, it is convenient for installation.

[0027] The present utility model provides a smoke exhaust pipe for an industrial boiler, and the specific working principle is as follows:

[0028] After the pipe body 1 is used for a period of time, the staff starts the driving motor 9. The driving motor 9 drives the driving gear 8 to rotate, so that the transmission belt 7 rotates and drives the driven gear 6 to rotate, and then drives the reciprocating lead screw 3 to rotate together. During the rotation of the reciprocating lead screw 3, the driven ring 4 is driven to move, so that the scraper 5 cleans the inner wall of the pipe body 1. During the cleaning process, the reciprocating lead screw 3 drives the brush 17 on the support plate 13 to clean the electrostatic dust removal net 18. The cleaned dust falls into the collection box 19 under the action of gravity.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A smoke exhaust pipe for an industrial boiler, comprising a pipe body (1), characterized in that: The inner surface of the pipe body (1) is fixedly connected to two positioning rings (2), and the two positioning rings (2) are rotatably connected to a reciprocating screw rod (3). The bottom end of the reciprocating screw rod (3) is fixedly connected to a driven gear (6). The outer surface of the pipe body (1) is fixedly connected to a protective cover (10), and the outer surface of the protective cover (10) is fixedly connected to a driving motor (9). The output end of the driving motor (9) is drivingly connected to a driving gear (8). The outer surface of the driving gear (8) is rotatably connected to the inner surface of the protective cover (10). The outer surface of the driving gear (8) is drivingly connected to a transmission belt (7), and the inner surface of the transmission belt (7) is drivingly connected to the outer surface of the driven gear (6). The outer surface of the reciprocating screw rod (3) is meshed with a driven ring (4), and the top and bottom ends of the driven ring (4) are fixedly connected to scrapers (5).

2. The smoke exhaust pipe for an industrial boiler according to claim 1, characterized in that: The inner surface of the pipe body (1) is fixedly connected to an electrostatic dust removal net (18); the top end of the reciprocating screw rod (3) is fixedly connected to a support plate (13); the top end of the support plate (13) is provided with a mounting plate (16); the inside of the mounting plate (16) is fixedly connected to a brush (17); the top end of the brush (17) is in close contact with the bottom end of the electrostatic dust removal net (18).

3. The smoke exhaust pipe for an industrial boiler according to claim 2, characterized in that: Two movable rods (14) are slidably connected inside the support plate (13), the top ends of the two movable rods (14) are fixedly connected to the bottom end of the mounting plate (16), and the outer surfaces of the two movable rods (14) are sleeved with return springs (15).

4. The smoke exhaust pipe for an industrial boiler according to claim 1, characterized in that: The inner surface of the pipe body (1) is provided with two positioning grooves (11), the outer surface of the driven ring (4) is fixedly connected with two positioning blocks (12), and the outer surfaces of the two positioning blocks (12) are respectively slidably connected with the inner surfaces of the two positioning grooves (11).

5. The smoke exhaust duct for industrial boilers according to claim 4, characterized in that: The bottom end of the pipe body (1) is threadedly connected to a collecting box (19), the inside of the collecting box (19) is fixedly connected to a sealing gasket (20), and the top end of the sealing gasket (20) is in close contact with the bottom end of the pipe body (1).

6. The smoke exhaust duct for industrial boilers according to claim 1, characterized in that: An air intake pipe (21) is fixedly connected to the outer surface of the pipeline body (1) near the bottom end, and a docking flange (22) is fixedly connected to the top of the air intake pipe (21) and the pipeline body (1).

Images