Flue gas baffle door for environmental protection equipment

Abstract

The utility model discloses a flue gas baffle door for environmental protection equipment, which relates to the technical field of flue gas baffle doors and comprises a door frame, a door leaf is rotatably connected in the door frame, sealing plates are fixed on the upper side and the lower side in the door frame, and the side walls of the sides, far away from each other, of the two sealing plates and the side walls of the two opposite sides of the door leaf are located in the same plane. A gap allowing the gate leaf to rotate is reserved between the sealing plate and the gate leaf, elastic sealing pieces are arranged between the sealing plate and the gate leaf, the elastic sealing pieces are attached to the outer side of the sealing plate and the outer side of the gate leaf and seal the gap between the sealing plate and the gate leaf, and the multiple elastic sealing pieces are located at the upper end and the lower end of the sealing plate and the upper end and the lower end of the gate leaf respectively. According to the smoke baffle door for the environmental protection equipment, due to the arrangement of the elastic installation structure, the situation that the elastic sealing piece generates fatigue deformation in the multiple opening and closing processes can be avoided, the service life of the elastic sealing piece can be greatly prolonged, and it is guaranteed that the smoke baffle door for the environmental protection equipment still has good sealing performance after being used for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flue damper door, especially to a flue damper door for environmental protection equipment. BACKGROUND

[0002] The flue damper door is a device capable of cutting off flue gas in the flue pipe and realizing sealing.

[0003] According to the patent file with the announcement number "CN212081280U", a flue damper door and a flue gas treatment equipment using the flue damper door are disclosed. The flue damper door comprises: a door frame, a first sealing plate and a second sealing plate are arranged on the inner wall of the door frame; a damper door blade is rotatably assembled on the door frame, and the end of the damper door blade is provided with a first end plate and a second end plate; a first elastic sealing piece is fixed on the outer side of the first end plate, and a second elastic sealing piece is fixed on the outer side of the second sealing plate; when in use, with the rotation of the damper door blade, the first elastic sealing piece overlaps the outer side of the first sealing plate, and the second end plate overlaps the inner side of the second elastic sealing piece, thereby cutting off the flue gas. When the flue gas blows on the first elastic sealing piece or the second elastic sealing piece, they will be pressed tighter, achieving better cutting and sealing effect. Since the pressure generated by the flue gas on the elastic sealing piece is utilized, there is no need to set up air charging equipment or other equipment, greatly simplifying the structure.

[0004] Based on the above search, combined with the prior art, it is found that the existing flue damper door utilizes elastic sealing pieces for sealing, but during multiple opening and closing processes, the elastic sealing pieces will repeatedly collide with the sealing plates or blades on the door frame, causing fatigue deformation of the elastic sealing pieces (such as reverse bending of the elastic sealing pieces), thereby causing gaps between the elastic sealing pieces and the sealing plates, resulting in poor sealing effect. Therefore, a flue damper door for environmental protection equipment is needed. UTILITY MODEL CONTENTS

[0005] The purpose of the present application is to provide a flue damper door for environmental protection equipment to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a flue damper door for environmental protection equipment, comprising a door frame, a door leaf rotatably connected in the door frame, sealing plates fixed on the upper and lower sides of the door frame, the side walls of the two sealing plates away from each other and the side walls of the door leaf opposite to each other being located in the same plane, and a gap between the sealing plates and the door leaf for the rotation of the door leaf;

[0007] An elastic sealing piece is arranged between the sealing plate and the door leaf, the elastic sealing piece being attached to the outer side of the sealing plate and the door leaf and sealing the gap between the sealing plate and the door leaf, and the elastic sealing piece being provided with a plurality of elastic sealing pieces and being located at the upper and lower ends of the sealing plate and the door leaf, respectively;

[0008] The elastic mounting structure is arranged on the sealing plate, and the elastic sealing sheet is elastically connected with the sealing plate through the elastic mounting structure.

[0009] As a further supplement to the present scheme, the elastic mounting structure mounted on the sealing plate comprises:

[0010] The fixing member is fixed with the outer sidewall of the sealing plate;

[0011] The spring is fixed at one side with the side of the elastic sealing sheet away from the sealing plate, and the other side of the spring is adjustably fixed with the fixing member through the connecting member.

[0012] As a further supplement to the present scheme, the fixing member comprises a mounting plate, the mounting plate is of L-shaped structure, one end of the mounting plate is fixed with the outer side of the sealing plate, and one side of the mounting plate is arranged in parallel with the sealing plate, and the spacing between the mounting plate and the sealing plate is less than the length of the spring when the spring is fully stretched without external intervention.

[0013] As a further supplement to the present scheme, the connecting member comprises:

[0014] The connecting block is fixed at one side with the end of the spring away from the elastic sealing sheet;

[0015] The adjusting bolt is rotatably connected at one end with the side of the connecting block away from the elastic sealing sheet, and the other end of the adjusting bolt penetrates through the mounting plate and is threadedly connected with the sidewall of the mounting plate parallel to the sealing plate.

[0016] As a further supplement to the present scheme, the end of the adjusting bolt away from the connecting block is fixed with a cap.

[0017] As a further supplement to the present scheme, the spring is provided with two groups, and the two groups of springs press the outer sides of the elastic sealing sheet and the sealing plate and the elastic sealing sheet and the door leaf, respectively.

[0018] In summary, the technical effects and advantages of the present application are:

[0019] 1、In the present application, the elastic mounting structure makes the elastic sealing sheet first move outwardly when colliding with the sealing plate or the door leaf, and when the door leaf is stable, the elasticity provided by the elastic mounting structure makes the elastic sealing sheet reset and tightly abut against the surface of the sealing plate or the door leaf, so that the gap between the sealing plate and the door leaf is sealed and covered. Since the elastic sealing sheet is elastically mounted, it can yield when colliding with the sealing plate or the door leaf, thereby avoiding fatigue deformation of the elastic sealing sheet during repeated opening and closing, greatly prolonging the service life of the elastic sealing sheet, and ensuring that the smoke baffle door for environmental protection equipment still has good sealing performance after long-term use.

[0020] 2. In the present invention, by setting the connecting block and the adjusting bolt, after long-term use, when the spring is fatigued and its elasticity is weakened, the staff only needs to turn the adjusting bolt so that the adjusting bolt drives the connecting block to move toward the side of the elastic sealing piece, and the spring can be adjusted to reduce the distance when it is compressed, so that the spring can continue to be used and meet the requirement of applying sufficient pressure to the elastic sealing piece, thereby further extending the service life of the smoke damper door used for environmental protection equipment and maintaining its long-term sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment;

[0023] Figure 2 is a cross-sectional view in this embodiment;

[0024] Figure 3 for Figure 2 A magnified view of the structure at center A.

[0025] In the figure: 1. Door frame; 11. Sealing plate; 2. Door leaf; 3. Elastic sealing piece; 4. Mounting plate; 5. Spring; 6. Connecting block; 7. Adjusting bolt; 8. Screw cap. DETAILED DESCRIPTION

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

[0027] Example: Reference Figures 1-3 The smoke damper door for environmental protection equipment shown in the figure includes a door frame 1, a door leaf 2 is rotatably connected to the door frame 1, and sealing plates 11 are fixed to the upper and lower sides of the door frame 1. The side walls of the two sealing plates 11 on the side away from each other are located in the same plane as the side walls on the opposite sides of the door leaf 2. A gap is left between the sealing plates 11 and the door leaf 2 for the door leaf 2 to rotate.

[0028] The elastic sealing sheet 3 is arranged between the sealing plate 11 and the door leaf 2, and is attached to the outer side of the sealing plate 11 and the door leaf 2 and seals the gap between the sealing plate 11 and the door leaf 2, and the elastic sealing sheet 3 is provided with a plurality of elastic sealing sheets and is arranged at the upper and lower ends of the sealing plate 11 and the door leaf 2, respectively;

[0029] The elastic mounting structure is arranged on the side wall of the sealing plate 11 or the door leaf 2, and the elastic sealing sheet 3 is elastically connected to the sealing plate 11 or the door leaf 2 through the elastic mounting structure;

[0030] Based on the above structure, combined with the accompanying Figures 1-2 It can be seen that the elastic mounting structure enables the elastic sealing sheet 3 to be first extruded outward when colliding with the sealing plate 11 or the door leaf 2, and when the door leaf 2 is stable, the elasticity provided by the elastic mounting structure enables the elastic sealing sheet 3 to reset and abut against the surface of the sealing plate 11 or the door leaf 2, so that the gap between the sealing plate 11 and the door leaf 2 is sealed and covered. Since the elastic sealing sheet 3 is elastically mounted, it can yield when colliding with the sealing plate 11 or the door leaf 2, thereby avoiding the condition that the elastic sealing sheet 3 is fatigued and deformed during multiple opening and closing processes, greatly prolonging the service life of the elastic sealing sheet 3 and ensuring that the flue baffle door for the environmental protection equipment still has good sealing performance after a long time of use.

[0031] Further, the elastic mounting structure mounted on the sealing plate 11 comprises:

[0032] The fixing member is fixed to the outer side wall of the sealing plate 11, and the fixing member comprises a mounting plate 4, the mounting plate 4 is an L-shaped structure, one end of the mounting plate 4 is fixed to the outer side of the sealing plate 11, and one side of the mounting plate 4 is arranged in parallel with the sealing plate 11;

[0033] The spring 5 is fixed to one side of the elastic sealing sheet 3 away from the sealing plate 11, and the other side of the spring 5 is adjustably fixed to the mounting plate 4 through a connecting member;

[0034] The distance between the mounting plate 4 and the sealing plate 11 is less than the length of the spring 5 when it is fully stretched without external intervention;

[0035] Through the arrangement of the mounting plate 4 and the elastic sealing sheet 3, the elastic sealing sheet 3 can contract when colliding, and the force generated by the collision can be transmitted to the spring 5, and the spring 5 can buffer the collision force through its elastic deformation, thereby avoiding the fatigue deformation of the elastic sealing sheet 3 caused by the collision during a long time of use, and ensuring that the elastic sealing sheet 3 still has good sealing effect after a long time of use.

[0036] The connecting member comprises:

[0037] The connecting block 6 is fixed to one end of the spring 5 away from the elastic sealing sheet 3;

[0038] The adjusting bolt 7 is rotatably connected to one side of the connecting block 6 away from the elastic sealing piece 3, and the other end of the adjusting bolt 7 penetrates through the mounting plate 4 parallel to the side wall of the sealing plate 11 and is threadedly connected with the mounting plate 4, and the end of the adjusting bolt 7 away from the connecting block 6 is fixed with the cap 8.

[0039] After a long period of use, when the spring 5 is damaged due to fatigue and its elasticity is weakened, the staff only needs to rotate the adjusting bolt 7, so that the adjusting bolt 7 drives the connecting block 6 to move to one side of the elastic sealing piece 3, and the spring 5 can be adjusted, so that the distance of the spring 5 when compressed is reduced, so that the spring 5 can continue to be used to meet the requirement of applying sufficient pressure to the elastic sealing piece 3, thereby further prolonging the service life of the flue baffle door for environmental protection equipment and maintaining its long-acting sealing effect.

[0040] Further, the spring 5 is provided with two groups, and the two groups of springs 5 press the outer side of the elastic sealing piece 3 and the sealing plate 11 and the elastic sealing piece 3 and the door leaf 2, respectively. Through the arrangement of the two groups of springs 5, the elastic sealing piece 3 can be more stable when stressed, and the angle deviation of the elastic sealing piece 3 can be avoided, thereby ensuring the stability of the elastic sealing piece 3 after a long period of use and ensuring its sealing effect.

[0041] The utility model discloses a working principle: in the daily use process, the door leaf 2 is driven to rotate by external driving element such as motor, cylinder etc., thereby opening and closing, in the closing process of door leaf 2, elastic sealing piece 3 can contract when being collided, and the force generated by the collision is conducted to spring 5, and spring 5 can buffer the collision force through the elastic deformation of itself, thereby achieving the purpose of avoiding the fatigue deformation of elastic sealing piece 3 in the long-time use process due to the collision, and guaranteeing that elastic sealing piece 3 still has good sealing effect after a long period of use.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A smoke damper door for environmental protection equipment, comprising a door frame (1), a door leaf (2) being rotatably connected to the door frame (1), sealing plates (11) being fixed on both upper and lower sides of the door frame (1), side walls of the two sealing plates (11) being away from each other and side walls of the door leaf (2) being located in the same plane, a gap being left between the sealing plates (11) and the door leaf (2) for the door leaf (2) to rotate, and characterized in that: An elastic sealing sheet (3) is provided between the sealing plate (11) and the door leaf (2), the elastic sealing sheet (3) being attached to the outer sides of the sealing plate (11) and the door leaf (2) and sealing the gap between the sealing plate (11) and the door leaf (2), and a plurality of the elastic sealing sheets (3) are provided and are respectively located at the upper and lower ends of the sealing plate (11) and the door leaf (2); The sealing plate (11) or the side wall of the door leaf (2) is provided with an elastic mounting structure, and the elastic sealing sheet (3) is elastically connected to the sealing plate (11) or the door leaf (2) via the elastic mounting structure. The elastic mounting structure enables the elastic sealing sheet (3) to contract when colliding with the sealing plate (11) or the door leaf (2), and to press against the surface of the sealing plate (11) or the door leaf (2) to form a seal.

2. The smoke damper door for environmental protection equipment according to claim 1, characterized in that: The elastic mounting structure mounted on the sealing plate (11) comprises: A fixing member, the fixing member being fixed to the outer side wall of the sealing plate (11); A spring (5), one side of the spring (5) is fixed to a side of the elastic sealing sheet (3) away from the sealing plate (11), and the other side of the spring (5) is adjustably fixed via a connecting piece and a fixing piece.

3. The smoke damper door for environmental protection equipment according to claim 2, characterized in that: The fixing member comprises a mounting plate (4), the mounting plate (4) being an L-shaped structure, one end of the mounting plate (4) being fixed to the outer side of the sealing plate (11), one side of the mounting plate (4) being arranged parallel to the sealing plate (11), and the distance between the mounting plate (4) and the sealing plate (11) being less than the length of the spring (5) after being fully extended without the intervention of external force.

4. The smoke damper door for environmental protection equipment according to claim 3, characterized in that: The connecting piece includes: A connecting block (6), one side of the connecting block (6) being fixed to an end of the spring (5) away from the elastic sealing sheet (3); An adjusting bolt (7), one end of which is rotatably connected to a side of the connecting block (6) away from the elastic sealing sheet (3), and the other end of which passes through the mounting plate (4) parallel to the side wall of the sealing plate (11) and is threadedly connected to the mounting plate (4).

5. The smoke damper door for environmental protection equipment according to claim 4, characterized in that: A screw cap (8) is fixed to the end of the adjusting bolt (7) away from the connecting block (6).

6. The smoke damper door for environmental protection equipment according to claim 4, characterized in that: Two groups of springs (5) are provided, and the two groups of springs (5) respectively apply pressure to the outer sides of the elastic sealing sheet (3) and the sealing plate (11), and the outer sides of the elastic sealing sheet (3) and the door leaf (2) in contact.

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