Smoke damper with lightweight elastic sealing structure

Abstract

The utility model discloses a smoke baffle door of a light-weight elastic sealing structure, and relates to the technical field of smoke baffle doors, the smoke baffle door comprises a door frame and a door plate arranged on the inner side of the door frame, and further comprises a sealing assembly, an elastic pressing assembly, a linkage assembly and a chimney assembly, the door frame is made of a high-strength aluminum alloy material, and the door plate is made of a carbon fiber composite material. According to the utility model, through the wavy elastic sealing gasket and the belleville spring capable of automatically compensating and pressing, the sealing performance is effectively improved, and the smoke leakage is greatly reduced; the aluminum alloy door frame and the carbon fiber composite material door plate are adopted, the weight of the baffle door is obviously reduced, installation and maintenance are convenient, meanwhile, the load of a supporting structure is relieved, and the construction cost is reduced; the device is made of a high-temperature-resistant and corrosion-resistant sealing material and a belleville spring with good buffering performance, so that the device can adapt to a severe smoke environment, and the fatigue damage of a sealing piece is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flue gas baffle door, concretely to a flue gas baffle door of light weight elastic sealing structure. BACKGROUND

[0002] In the flue gas treatment system of electric power, steel, chemical industry and the like, the flue gas baffle door is widely used in cutting off or adjusting flue gas circulation. The overall structure of the conventional flue gas baffle door is heavy, which not only increases the difficulty of installation and maintenance, but also puts forward higher requirements to the supporting structure, improves the construction cost; and the conventional sealing structure is insufficient in reliability in the long-term use process, the elastic element is prone to fatigue damage due to the influence of factors such as flue gas scouring and temperature change, which leads to the decline of sealing performance, and frequent replacement of sealing elements increases the operation cost and maintenance workload. SUMMARY

[0003] The utility model provides a flue gas baffle door of light weight elastic sealing structure has good sealing performance and the advantages such as light weight to solve the existing equipment sealing element easy to damage and the problem of heavy structure.

[0004] To achieve the above object, the utility model provides the following technical scheme: a flue gas baffle door of light weight elastic sealing structure, including door frame and the door plate of being arranged in the inboard of door frame, still including sealing assembly, elastic compression assembly, linkage assembly and smoke stack assembly, wherein:

[0005] The door frame side is I-shaped structure, the door frame is high-strength aluminum alloy material, the door plate is carbon fiber composite material, a plurality of mounting holes are arranged on the door frame;

[0006] The sealing assembly includes a sealing gasket, one side of the sealing gasket is attached to the top surface edge and the bottom surface edge of the door plate, and the other side is provided with a plurality of arc-shaped protrusions, the sealing gasket and the arc-shaped protrusions are made of silicone emulsion material;

[0007] The elastic compression assembly includes a backing plate, a combination pad is attached to one side of the backing plate, and a plurality of disc springs are abutted on the other side, a plurality of grooves are provided on the surface of the combination pad, and the disc springs and the backing plate are penetrated by a limiting column and are slidingly connected.

[0008] As a preferred technical scheme of the utility model, the door plate is welded with a rotating shaft, one end of the rotating shaft penetrates the door frame and is connected with an electric actuator, the other end is embedded in the door frame and is rotationally connected, and one end of the limiting column is welded with the inner wall of the door frame.

[0009] As a preferred technical scheme of the utility model, the arc-shaped protrusions are embedded in the grooves, and the combination pad is made of silicone emulsion material.

[0010] As a preferred technical scheme of the utility model, the support frame is welded on the outer side of one end of the door frame, a bearing is fixed on one side of the support frame through a bolt, and a rotating shaft is welded at the center of the bearing.

[0011] As a preferred technical scheme of the utility model, the support frame is welded on the outer side of one end of the door frame, a bearing is fixed on one side of the support frame through a bolt, and a rotating shaft is welded at the center of the bearing.

[0012] As a preferred technical scheme of the utility model, the support frame is welded on the outer side of one end of the door frame, a bearing is fixed on one side of the support frame through a bolt, and a rotating shaft is welded at the center of the bearing.

[0013] As a preferred technical scheme of the utility model, the support frame is welded on the outer side of one end of the door frame, a bearing is fixed on one side of the support frame through a bolt, and a rotating shaft is welded at the center of the bearing.

[0014] Compared with the prior art, the utility model provides a light weight elastic sealing structure's flue gas baffle door, has the following beneficial effects: the utility model discloses a wave -shaped elastic sealing pad and automatic compensation pressure tight butterfly spring, effectively improve the sealing performance, greatly reduce the flue gas leakage, the device adopts aluminum alloy door frame and carbon fiber composite material door board, the weight of baffle door is reduced significantly, is convenient for installation, maintenance, reduces the load of support structure simultaneously, and reduces construction cost, the device high temperature -resistant, corrosion -resistant sealing material and butterfly spring with good buffering performance can adapt to the severe flue gas environment, reduce the fatigue damage of sealing element. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is door frame structure diagram of the utility model;

[0017] Figure 3 It is sealing assembly structure schematic diagram of the utility model;

[0018] Figure 4 It is elastic pressure tight assembly structure diagram of the utility model;

[0019] Figure 5 It is linkage assembly structure schematic diagram of the utility model;

[0020] Figure 6 It is chimney assembly structure diagram of the utility model.

[0021] In the figure: 1, door frame; 2, door plate; 3, sealing assembly; 4, elastic compression assembly; 5, linkage assembly; 6, flue assembly; 11, mounting hole; 12, support frame; 13, bearing; 14, outer frame; 31, sealing gasket; 32, arc-shaped lug; 41, pad plate; 42, combined pad; 43, disc spring; 44, groove; 45, limiting column; 51, rotating shaft; 52, electric actuator; 53, main rod; 54, linkage shaft; 55, auxiliary rod; 56, auxiliary rotating shaft; 61, flue; 62, sealing disc; 63, sealing plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Embodiment one

[0023] Please refer to Figures 1-6 The utility model discloses a light weight elastic sealing structure's flue gas damper door, including door frame 1 and the door plate 2 of being established in the inboard of door frame 1, still including sealing assembly 3, elastic compression assembly 4, linkage assembly 5 and flue assembly 6, wherein:

[0024] The side edge of door frame 1 is I-shaped structure, and door frame 1 is made of high-strength aluminum alloy material, and door plate 2 is made of carbon fiber composite material, and a plurality of mounting holes 11 are formed in door frame 1.

[0025] Please refer to the attached Figure 3 The sealing assembly 3 includes a sealing gasket 31, one side of the sealing gasket 31 is attached to the top edge and the bottom edge of the door plate 2, and the other side is provided with a plurality of arc-shaped lugs 32. The sealing gasket 31 and the arc-shaped lugs 32 are made of silicone rubber material. Specifically, the silicone rubber material has the characteristics of high temperature resistance and corrosion resistance, and the sealing performance is better.

[0026] Please refer to the attached Figure 4 The elastic compression assembly 4 includes a pad plate 41, one side of the pad plate 41 is attached to a combined pad 42, and the other side abuts against a plurality of disc springs 43. The surface of the combined pad 42 is provided with a plurality of grooves 44. The disc springs 43 and the pad plate 41 are penetrated by the limiting column 45 and are in sliding fit. Specifically, the disc springs 43 can automatically adjust the compression force on the sealing gasket according to the changes of flue gas pressure and temperature, so as to ensure stable sealing effect under different working conditions.

[0027] The door plate 2 is welded with a rotating shaft 51, one end of the rotating shaft 51 penetrates the door frame 1 and is connected with an electric actuator 52, the other end is embedded in the door frame 1 and is rotationally matched, one end of the limiting column 45 is welded with the inner wall of the door frame 1, specifically, the electric actuator 52 has the advantages of fast response speed and high control precision.

[0028] In the embodiment, the door frame 1 made of high-strength aluminum alloy material and the I-shaped structure design greatly reduce the weight under the premise of ensuring the structural strength, and the carbon fiber composite material of the door plate also has the characteristics of high strength and low density, further reducing the weight of the baffle door and reducing the construction cost. Embodiment two

[0029] Based on the above embodiment 1, please refer to the attached Figure 5 And Figure 6 The arc-shaped protrusion 32 is embedded in the groove 44, and the combined pad 42 is made of silicone emulsion material, specifically, the arc-shaped structure increases the surface area and improves the sealing performance.

[0030] The door frame 1 is welded with a support frame 12 on one end of the outer side, the support frame 12 is fixed with a bearing 13 on one side through a bolt, the bearing 13 is welded with a rotating shaft 51 at the center, specifically, the bearing 13 reduces the rotating resistance of the rotating shaft 51 and improves the rotating efficiency.

[0031] The outer side of the support frame 12 is provided with an outer frame 14, and the electric actuator 52 is fixed on the outer frame 14 through a screw.

[0032] The linkage assembly 5 includes a main rod 53, one end of the main rod 53 is welded with a rotating shaft 51, the other end is connected with a linkage shaft 54 and is rotationally matched, one end of the linkage shaft 54 is connected with a sub-rod 55 and is rotationally matched.

[0033] One end of the sub-rod 55 is welded with a sub-rotating shaft 56, the sub-rotating shaft 56 penetrates the chimney 61 and is rotationally matched, the sub-rotating shaft 56 is provided with a sealing disc 62 in the part extending into the chimney 61, the sealing disc 62 is abutted with a sealing plate 63 on both sides, and the sealing plate 63 is obliquely and symmetrically arranged on the inner wall of the chimney 61.

[0034] In the embodiment, when the electric actuator 52 drives the rotating shaft 51 to rotate, the rotating shaft 51 drives the linkage shaft 54 to move through the main rod 53, the linkage shaft 54 drives the sub-rotating shaft 56 to rotate synchronously through the sub-rod 55, and then the sub-rotating shaft 56 drives the sealing disc 62 to rotate, and the sealing plate 63 is matched to seal and ventilate the chimney 61.

[0035] The working principle and use process of the utility model: first when the baffle door open state, flue gas can pass through between the sealing plate 63 of the chimney 61, then through the door frame 1 realizes the passage, when needing to adjust flue gas flow or close flue gas passage, can remote control electric actuator 52, electric actuator 52 drives the rotating shaft 51 to rotate clockwise in the bearing 13, and then drives the door plate 2 to rotate clockwise until the sealing gasket 31 of door plate 2 edge coincides with the combination pad 42;

[0036] When the sealing gasket 31 coincides with the combination pad 42, the arc-shaped lug 32 on the sealing gasket 31 abuts against the recess 44, and the wave design increases the contact area between the sealing gasket 31 and the door frame 1 and the door plate 2, and can produce better elastic deformation when subjected to pressure, improving the sealing performance;

[0037] When the baffle door is sealed, the butterfly spring 43 of the elastic compression assembly 4 has good buffering and compensation capacity, can automatically adjust the compression force of the sealing gasket according to the change of flue gas pressure and temperature, and ensures that stable sealing effect can be maintained under different working conditions;

[0038] When the rotating shaft 51 rotates, the main rod 53 drives the linkage shaft 54 to move, the linkage shaft 54 drives the auxiliary rotating shaft 56 to rotate synchronously through the auxiliary rod 55, and then the auxiliary rotating shaft 56 drives the sealing disc 62 to rotate with the door plate 2, and the sealing plate 63 cooperates to seal and ventilate the chimney 61, realizing the synchronous opening and closing of the chimney 61 and the door frame 1, two sealing structures, better sealing effect.

Claims

1. A flue gas baffle door of a light-weight elastic sealing structure, comprising a door frame (1) and a door plate (2) arranged on the inner side of the door frame (1), characterized in that, Also include sealing assembly (3), elastic compression assembly (4), linkage assembly (5) and chimney assembly (6), wherein: The door frame (1) side is an I-shaped structure, the door frame (1) is a high-strength aluminum alloy material, the door plate (2) is a carbon fiber composite material, and the door frame (1) is provided with a plurality of mounting holes (11); The sealing assembly (3) includes a sealing gasket (31), one side of the sealing gasket (31) is attached to the top surface edge and the bottom surface edge of the door plate (2), and the other side is provided with a plurality of arc-shaped protrusions (32), the sealing gasket (31) and the arc-shaped protrusions (32) are made of silicone latex material; The elastic compression assembly (4) includes a pad (41), one side of the pad (41) is attached to a combined pad (42), and the other side abuts a plurality of disc springs (43), the surface of the combined pad (42) is provided with a plurality of grooves (44), and the disc springs (43) and the pad (41) are penetrated by a limiting column (45) and are in sliding fit.

2. A flue gas baffle door of a light-weight elastic sealing structure according to claim 1, characterized in that: The door plate (2) is welded with a rotating shaft (51), one end of the rotating shaft (51) penetrates the door frame (1) and is connected with an electric actuator (52), the other end is embedded in the door frame (1) and is in rotational fit, and one end of the limiting column (45) is welded with the inner wall of the door frame (1).

3. A flue gas baffle door of a light-weight elastic sealing structure according to claim 2, characterized in that: The arc-shaped protrusions (32) are embedded in the grooves (44), and the combined pad (42) is made of silicone latex material.

4. A flue gas baffle door of a light-weight elastic sealing structure according to claim 3, characterized in that: One end of the door frame (1) is welded with a support frame (12) on the outside, one side of the support frame (12) is fixed with a bearing (13) through bolts, and the center of the bearing (13) is welded with a rotating shaft (51).

5. A flue gas baffle door of a light-weight elastic sealing structure according to claim 4, characterized in that: The outer side of the support frame (12) is provided with an outer frame (14), and the electric actuator (52) is fixed on the outer frame (14) by screws.

6. A flue gas baffle door of a light-weight elastic sealing structure according to claim 1, characterized in that: The linkage assembly (5) includes a main rod (53), one end of the main rod (53) is welded with a rotating shaft (51), the other end is connected with a linkage shaft (54) and is in rotational fit, one end of the linkage shaft (54) is connected with a secondary rod (55) and is in rotational fit.

7. A flue gas baffle door of a light-weight elastic sealing structure according to claim 6, characterized in that: One end of the secondary rod (55) is welded with a secondary rotating shaft (56), the secondary rotating shaft (56) penetrates the chimney (61) and is in rotational fit, and the secondary rotating shaft (56) extends into the inner part of the chimney (61) and is provided with a sealing disc (62), the sealing disc (62) abuts the sealing plate (63) on both sides, and the sealing plate (63) is symmetrically arranged on the inner wall of the chimney (61).

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