Flue anti-abrasion structure

Abstract

The utility model belongs to the technical field of boilers, and particularly relates to a flue abrasion-proof structure which comprises a flue body, a cooling box and a dust removal box, the cooling box and the dust removal box are sequentially installed on the surface of the flue body, and a dust removal assembly is arranged in the dust removal box. Dust in the flue carries negative charges through the corona electrode, the dust is adsorbed and collected through the dust collecting plate, then the double-shaft motor drives the sweeping plate to sweep the dust on the surface of the dust collecting plate in a reciprocating mode, the dust falls into the dust discharging pipe to be discharged, electrostatic dust collection of waste gas is achieved, and abrasion of particles in flue gas to the interior of the pipeline is reduced; and meanwhile, a cooling assembly is arranged, heat in the flue body is absorbed through a coiled pipe, the situation that the temperature of waste gas is too high, and the internal arrangement of the dust removal box is affected is avoided, and meanwhile waste heat of the waste gas can be recycled.

Description

Technical Field

[0001] The utility model belongs to the technical field of boilers, and in particular relates to a flue anti-wear structure. Background Art

[0002] The flue is one of the main auxiliary equipment of the power plant boiler and an indispensable part of the thermal power plant. Its role is self-evident. The quality of the flue is directly related to the amount of power generation and the power generation efficiency of the unit. With the continuous increase in electricity consumption and the emergence of energy problems, the economic efficiency of the flue of the power plant is increasingly valued by people. The quality of its operating condition is directly related to the economic benefits of the thermal power plant. Its safe and stable operation is the safety guarantee for the safe operation of the unit.

[0003] After checking, the publication (announcement) number: CN213019707U discloses a boiler flue, which discloses "including a smoke exhaust pipe, the side wall of the smoke exhaust pipe is connected to the upper end of the bracket by bolts, the side wall of the bracket is connected to a slide rail by bolts, a slider is slidably connected in the middle of the slide rail, the upper end of the slider is connected to a bottom plate by bolts, the upper end of the bottom plate is connected to a frame by bolts, the end of the frame is plugged into the side wall of the smoke exhaust pipe, and a through hole structure matching the smoke exhaust pipe is opened in the middle of the frame, and has a sliding path along the slide rail. The rail pulls the slider outward, and the frame can be pulled out outward in cooperation with the bottom plate, so that the through holes on the side wall of the frame are exposed outward, which is convenient for docking with the auxiliary ventilation components, ventilating the smoke exhaust pipe, and improving the smoke exhaust efficiency; an auxiliary pipe is installed on the side wall of the bracket, and the end of the auxiliary pipe is docked with the frame. When the frame moves outward to the end of the auxiliary pipe, it will be connected with the internal cavity of the auxiliary pipe. At the same time, the end of the frame will trigger the contact switch, and the contact switch will be connected to the power supply of the ventilator. The auxiliary pipe cooperates with the frame to assist ventilation inside the smoke exhaust pipe, thereby improving the smoke exhaust rate and other technical effects.

[0004] Although the above design can improve the smoke exhaust rate of the pipeline when in use, the exhaust gas in the flue contains a large amount of dust. The dust flows rapidly in the flue, causing wear on the inner wall of the flue. Long-term use of the smoke and air duct will cause large-scale wear and thinning or even wear through, which will cause air and ash leakage in the smoke and air duct, resulting in a poor operating environment for the equipment, shortening the service life of the equipment, increasing the failure rate of the equipment, and affecting the safe, reliable and economical operation of the equipment.

[0005] In order to solve the above problems, a flue anti-wear structure is proposed in the present application. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a flue anti-wear structure, which has the characteristics of being able to remove dust from the exhaust gas, reduce the wear of particles in the flue gas on the inside of the pipe, and increase the service life of the flue.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue anti-wear structure, comprising a flue body, and a cooling box and a dust removal box sequentially installed on the surface of the flue body, wherein a dust removal assembly is arranged inside the dust removal box;

[0008] The dust removal assembly includes several groups of dust collecting plates installed inside the dust removal box, several groups of corona electrodes installed inside the dust removal box close to one side of the dust collecting plates, and cleaning plates arranged on both sides of the dust collecting plates. A moving rod is slidably connected to one side of the dust removal box close to the cleaning plate through a sliding groove, and the moving rod and the cleaning plate are fixedly connected.

[0009] As a preferred flue anti-wear structure of the utility model, the dust collecting plate is fixedly connected to one end away from the moving rod with a baffle, and the baffle is fixedly connected to the inside of the dust removal box, and a moving groove is opened on one side of the baffle close to the cleaning plate.

[0010] As a preferred flue anti-wear structure of the utility model, a reciprocating screw rod is symmetrically threaded inside the movable rod, and the top end of the reciprocating screw rod passes through the interior of the dust removal box and is fixedly connected to a second bevel gear arranged on the surface of the dust removal box.

[0011] As a preferred flue anti-wear structure of the utility model, a dual-axis motor is installed on the side of the dust removal box surface close to the second bevel gear, the output ends of the dual-axis motor are fixedly connected with a rotating rod, the end of the rotating rod close to the second bevel gear is fixedly connected with the first bevel gear, and the first bevel gear and the second bevel gear are meshingly connected.

[0012] As a preferred anti-wear structure of the flue of the utility model, the bottom end of the dust removal box is fixedly connected with a dust exhaust pipe.

[0013] As a preferred flue anti-wear structure of the utility model, a cooling component is arranged inside the cooling box, and the cooling component includes a heat conduction plate symmetrically fixedly connected to the inside of the cooling box and a serpentine pipe installed between the heat conduction plate and the cooling box, and a circulating pump is fixedly connected to the bottom end of the cooling box.

[0014] As a preferred anti-wear structure for a flue of the utility model, a water tank is fixedly connected to the surface of the flue body on one side close to the cooling box, and the output end and the input end of the circulating pump are respectively connected to the serpentine pipe and the water tank through connecting pipes, and a water inlet valve is fixedly connected to one side of the water tank surface.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting up a dust removal component, the dust inside the flue is negatively charged by the corona electrode, and the dust is adsorbed and collected by the dust collecting plate, and then the cleaning plate is driven by a dual-axis motor to reciprocately clean the dust on the surface of the dust collecting plate, so that it falls into the dust exhaust pipe and is discharged, thereby realizing electrostatic dust removal of the exhaust gas, reducing the wear of particles in the flue gas on the inside of the pipe, and improving the service life of the flue. At the same time, a cooling component is set to absorb the heat inside the flue body through a serpentine pipe, thereby avoiding the influence of excessive exhaust temperature on the internal settings of the dust collection box, and at the same time being able to recycle the waste heat of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the dust removal box in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the reciprocating screw rod and the moving rod in the utility model;

[0020] Figure 4 It is a cross-sectional view of the cooling box in the utility model.

[0021] In the figure:

[0022] 1. Flue body; 2. Dust removal box;

[0023] 3. Dust removal assembly; 31. Dust exhaust pipe; 32. Corona electrode; 33. Dust collecting plate; 34. Baffle; 35. Cleaning plate; 36. Moving rod; 37. First bevel gear; 38. Double-axis motor; 39. Rotating rod; 310. Second bevel gear; 311. Reciprocating screw rod;

[0024] 4. Cooling component; 41. Water tank; 42. Serpentine pipe; 43. Heat conduction plate; 44. Circulation pump;

[0025] 5. Cooling box. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] like Figure 1 As shown:

[0029] A flue anti-wear structure comprises a flue body 1 and a cooling box 5 and a dust removal box 2 which are sequentially installed on the surface of the flue body 1.

[0030] In this embodiment: the existing disclosure (announcement) number: CN213019707U discloses a boiler flue; in order to solve the technical problems existing in this prior art, as disclosed in the background technology above, "although the pipeline smoke exhaust rate can be improved, the exhaust gas in the flue contains a large amount of dust. These dusts flow rapidly in the flue, which will cause wear on the inner wall of the flue. Long-term use of the smoke and air duct will cause large-scale wear and thinning or even wear through, which will cause air and ash leakage in the smoke and air duct, resulting in a poor operating environment for the equipment, shortening the equipment's service life, increasing the equipment's failure rate, and affecting the safe, reliable and economical operation of the equipment." In terms of combined use, this problem is obviously a real problem that is difficult to solve. In view of this, in order to solve this technical problem, a dust removal component 3 and a cooling component 4 are added to the application document.

[0031] More specifically:

[0032] like Figure 1-Figure 4 As shown:

[0033] In combination with the above content, the dust removal assembly 3 includes several groups of dust collecting plates 33 installed inside the dust removal box 2, several groups of corona electrodes 32 installed on one side of the dust removal box 2 close to the dust collecting plates 33, and cleaning plates 35 arranged on both sides of the dust collecting plates 33. A moving rod 36 is slidably connected to one side of the dust removal box 2 close to the cleaning plate 35 through a sliding groove, and the moving rod 36 and the cleaning plate 35 are fixedly connected.

[0034] In this embodiment: during the smoke exhaust process of the flue, when the smoke passes through the dust removal box 2, the corona electrode 32 starts to ionize the smoke, so that the particles in the smoke carry negative charges, which complete the process of opposite charges attracting each other with the positive charges on the surface of the dust collecting plate 33, so that the particles adhere to the surface of the dust collecting plate 33, complete electrostatic dust removal, reduce the wear of the particles in the smoke on the inside of the pipe, and increase the service life of the flue, and then the dust on the surface of the dust collecting plate 33 is scraped off by the cleaning plate 35, so that it falls into the dust exhaust pipe 31 for discharge.

[0035] It should be noted that: installing a tortoise shell mesh in the severely worn area inside the flue body 1 can effectively improve the wear of the flue wall and improve the reliability and safety of the unit.

[0036] Going further:

[0037] like Figure 1-Figure 4 As shown:

[0038] In order to facilitate the cleaning of dust adsorbed on the surface of the corona electrode 32, in an optional embodiment: the end of the dust collecting plate 33 away from the moving rod 36 is fixedly connected to a baffle 34, and the baffle 34 is fixedly connected to the interior of the dust removal box 2, and a moving groove is provided on the side of the baffle 34 close to the cleaning plate 35; the interior of the moving rod 36 is symmetrically screwed with a reciprocating screw rod 311, and the top of the reciprocating screw rod 311 passes through the interior of the dust removal box 2 and is fixedly connected to the second bevel gear 310 arranged on the surface of the dust removal box 2; a dual-axis motor 38 is installed on the side of the surface of the dust removal box 2 close to the second bevel gear 310, and the output ends of the dual-axis motor 38 are fixedly connected to a rotating rod 39, and the end of the rotating rod 39 close to the second bevel gear 310 is fixedly connected to the first bevel gear 37, and the first bevel gear 37 and the second bevel gear 310 are meshed and connected; the bottom end of the dust removal box 2 is fixedly connected to a dust exhaust pipe 31.

[0039] In the present embodiment: during the smoke exhaust process of the flue, when the smoke passes through the dust removal box 2, the corona electrode 32 starts to ionize the smoke, so that the particles in the smoke carry negative charges, and complete the process of opposite charges attracting each other with the positive charges on the surface of the dust collecting plate 33, so that the particles adhere to the surface of the dust collecting plate 33, complete the electrostatic dust removal, reduce the wear of the particles in the smoke on the inside of the pipe, and increase the service life of the flue, and then start the dual-axis motor 38 to drive the two sets of rotating rods 39 to rotate, and then the rotating rod 39 will drive the reciprocating screw 311 to rotate through the first bevel gear 37 and the second bevel gear 310, thereby driving the moving rod 36 to reciprocate inside the dust removal box 2, and drive multiple sets of cleaning plates 35 to move on the surface of the dust collecting plate 33 through the moving rod 36, and the dust on the surface of the dust collecting plate 33 is scraped off by the cleaning plate 35, so that it falls into the dust exhaust pipe 31 and is discharged.

[0040] More specifically:

[0041] like Figure 1-Figure 4 As shown:

[0042] In combination with the above content, a cooling component 4 is arranged inside the cooling box 5, and the cooling component 4 includes a heat conduction plate 43 symmetrically fixedly connected inside the cooling box 5 and a serpentine tube 42 installed between the heat conduction plate 43 and the cooling box 5, and a circulating pump 44 is fixedly connected to the bottom end of the cooling box 5; a water tank 41 is fixedly connected to the side of the surface of the flue body 1 close to the cooling box 5, and the output end and input end of the circulating pump 44 are respectively connected to the serpentine tube 42 and the water tank 41 through a connecting pipe, and a water inlet valve is fixedly connected to one side of the surface of the water tank 41.

[0043] In this embodiment: when the flue gas passes through the cooling box 5, starting the circulation pump 44 can pump the water inside the water tank 41 into the serpentine tube 42, and then the heat of the flue gas inside the flue body 1 is absorbed through the serpentine tube 42, the flue gas is cooled, and the heat of the flue gas is recovered and utilized. The serpentine tube 42 can be used to protect the serpentine tube 42 and ensure the absorption effect of the flue gas heat by the serpentine tube 42. A water inlet valve is connected to one side of the water tank 41 to facilitate the injection of water into the water tank 41. A drain pipe is connected to one end of the serpentine tube 42 to facilitate the discharge of water that absorbs heat.

[0044] It should be noted that the circulation pump 44, the dual-axis motor 38, the corona electrode 32 and the dust collecting plate 33 are all electrically connected to the external power supply through wires.

[0045] Working principle: During the exhaust process of the flue, when the flue gas passes through the cooling box 5, the circulating pump 44 is started to pump the water inside the water tank 41 into the serpentine tube 42, and then the heat of the flue gas inside the flue body 1 is absorbed through the serpentine tube 42, the flue gas is cooled, and the heat of the flue gas is recycled. The serpentine tube 42 can be protected and the serpentine tube 42 can absorb the heat of the flue gas. A water inlet valve is connected to one side of the water tank 41 to facilitate water injection into the water tank 41. A drain pipe is connected to one end of the serpentine tube 42 to facilitate the discharge of the water that absorbs the heat. When the flue gas passes through the dust removal box 2, the corona electrode 32 starts to ionize the flue gas, so that the particles in the flue gas are The particles carry negative charges, which complete the process of opposite charges attracting each other with the positive charges on the surface of the dust collecting plate 33, so that the particles adhere to the surface of the dust collecting plate 33, complete electrostatic dust removal, reduce the wear of the particles in the flue gas on the inside of the pipe, and increase the service life of the flue. Then start the dual-axis motor 38 to drive the two sets of rotating rods 39 to rotate, and then the rotating rod 39 will drive the reciprocating screw rod 311 to rotate through the first bevel gear 37 and the second bevel gear 310, thereby driving the moving rod 36 to reciprocate inside the dust removal box 2, and drive multiple sets of cleaning plates 35 to move on the surface of the dust collecting plate 33 through the moving rod 36, and scrape the dust on the surface of the dust collecting plate 33 through the cleaning plate 35, so that it falls into the dust exhaust pipe 31 and is discharged.

[0046] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention to solve the problems raised in the above background technology.

Claims

1. A flue anti-wear structure, comprising a flue body (1) and a cooling box (5) and a dust removal box (2) sequentially installed on the surface of the flue body (1), characterized in that: A dust removal assembly (3) is arranged inside the dust removal box (2); The dust removal assembly (3) comprises a plurality of groups of dust collecting plates (33) installed inside the dust removal box (2), a plurality of groups of corona electrodes (32) installed inside the dust removal box (2) on one side close to the dust collecting plates (33), and cleaning plates (35) arranged on both sides of the dust collecting plates (33); a moving rod (36) is slidably connected to one side of the dust removal box (2) close to the cleaning plates (35) through a sliding groove, and the moving rod (36) and the cleaning plates (35) are fixedly connected.

2. The flue anti-wear structure according to claim 1, characterized in that: The dust collecting plate (33) is fixedly connected to one end away from the moving rod (36) with a baffle (34), and the baffle (34) is fixedly connected to the inside of the dust removal box (2), and a moving groove is provided on one side of the baffle (34) close to the cleaning plate (35).

3. The flue anti-wear structure according to claim 1, characterized in that: A reciprocating screw rod (311) is symmetrically threaded inside the moving rod (36), and the top end of the reciprocating screw rod (311) passes through the interior of the dust removal box (2) and is fixedly connected to a second bevel gear (310) arranged on the surface of the dust removal box (2).

4. The flue anti-wear structure according to claim 3, characterized in that: A double-shaft motor (38) is installed on the side of the surface of the dust removal box (2) close to the second bevel gear (310), the output ends of the double-shaft motor (38) are fixedly connected to a rotating rod (39), one end of the rotating rod (39) close to the second bevel gear (310) is fixedly connected to a first bevel gear (37), and the first bevel gear (37) and the second bevel gear (310) are meshingly connected.

5. The flue anti-wear structure according to claim 1, characterized in that: The bottom end of the dust removal box (2) is fixedly connected to a dust exhaust pipe (31).

6. The flue anti-wear structure according to claim 1, characterized in that: A cooling component (4) is arranged inside the cooling box (5), and the cooling component (4) comprises a heat conduction plate (43) symmetrically fixedly connected inside the cooling box (5) and a serpentine pipe (42) installed between the heat conduction plate (43) and the cooling box (5), and a circulation pump (44) is fixedly connected to the bottom end of the cooling box (5).

7. The flue anti-wear structure according to claim 6, characterized in that: A water tank (41) is fixedly connected to one side of the surface of the flue body (1) close to the cooling box (5), and the output end and input end of the circulation pump (44) are respectively connected to the serpentine pipe (42) and the water tank (41) through connecting pipes, and a water inlet valve is fixedly connected to one side of the surface of the water tank (41).

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