Flue gas baffle door

Abstract

The utility model discloses a flue gas baffle door which comprises a flue gas baffle door body. The flue gas baffle door body comprises a door frame and blades used for sealing the door frame, and the flue gas baffle door body is made of a corrosion-resistant material; a sealing piece used for achieving sealing between the door frame and the blade when the door frame is sealed by the blade is arranged between the door frame and the blade. A rotating shaft arranged along the central axis of the blade penetrates through the blade, the two ends of the rotating shaft penetrate out of the door frame and are rotationally assembled with the door frame in a sealed mode, one end of the rotating shaft is connected with a rocker arm, and the rocker arm is connected with a motor used for driving the rocker arm to act so that the rotating shaft can rotate to drive the blade to rotate. The controlled end of the motor is connected with a PLC used for controlling the motor. The smoke damper has the advantages that the response speed is high, the quick and stable rotation of the rotating shaft is realized, the opening and closing actions of the smoke damper are effectively ensured, and the smoke damper is corrosion-resistant and not easy to damage.

Description

Technical Field

[0001] This utility model relates to the field of baffle door technology, specifically to a flue gas baffle door. Background Technology

[0002] In industrial production, especially in enterprises that generate large amounts of flue gas, such as power plants, metallurgical plants, and chemical plants, the treatment and emission control of flue gas are crucial. Traditional flue gas dampers suffer from problems such as slow response speed, insufficient corrosion resistance, and easy damage, leading to flue gas leakage and affecting environmental quality and equipment safety. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a smoke baffle door to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A flue gas damper includes a flue gas damper body; the flue gas damper body includes a door frame and blades for closing the door frame, wherein the flue gas damper body is made of a corrosion-resistant material; a sealing plate is provided between the door frame and the blades for sealing between the door frame and the blades when the blades close the door frame; a rotating shaft is provided through the blades along the central axis of the blades, both ends of the rotating shaft pass through the door frame and are rotatably assembled with the door frame in a sealed manner, one end of the rotating shaft is connected to a rocker arm, the rocker arm is connected to a motor for driving the rocker arm to rotate the rotating shaft to drive the blades to rotate, the controlled end of the motor is connected to a PLC controller for controlling the motor; the rocker arm includes a first arm fixedly connected to the rotating shaft of the motor, a second arm hinged to the end of the first arm away from the motor, a third arm hinged to the end of the second arm away from the first arm, and the end of the third arm away from the second arm fixedly connected to the rotating shaft.

[0006] Preferably, the front and rear walls of the blade-sealed door frame are respectively provided with a layer of sealing plate with protruding blades on all four sides, and the inner wall of the door frame is provided with a double-layer inner frame plate along the circumference, which corresponds to the two sealing plates when the blade seals the door frame. The sealing sheet is disposed between the two sealing plates and the double-layer inner frame plate and avoids the rotation of the blades.

[0007] Preferably, the outer wall of the door frame is provided with a double-layer outer frame plate along the circumferential direction, and a first mounting hole is provided on the double-layer outer frame plate along the circumferential direction.

[0008] Preferably, a reinforcing rib plate that is fixedly connected to the door frame is provided between the double-layer outer frame plates.

[0009] Preferably, a lifting lug is provided on one outer wall of the door frame.

[0010] Preferably, a connecting seat that is rotatably connected to the rotating shaft is fixedly provided on the outer wall of the door frame at a position corresponding to the rotating shaft.

[0011] Preferably, the motor is fixedly connected to a mounting base, and the mounting base has a second mounting hole for mounting the mounting base.

[0012] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0013] This utility model has a simple structure, stable performance, and long service life. Through the design of the door frame, blades, rocker arm, and motor, it not only has a fast response speed and achieves rapid and stable rotation of the shaft, effectively ensuring the opening and closing of the flue gas damper door, but is also corrosion-resistant and not easily damaged. Attached Figure Description

[0014] Figure 1 This is a first-view structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0017] Figure 4 This is a longitudinal sectional view of the flue gas damper door body of this utility model;

[0018] Figure 5 This is a cross-sectional view of the flue gas damper door body of this utility model.

[0019] Among them: 1. Door frame, 2. Double-layer inner frame plate, 3. Double-layer outer frame plate, 31. First mounting hole, 4. Lifting lug, 5. Reinforcing rib plate, 6. Connecting seat, 7. Rotating shaft, 8. Blade, 81. Sealing plate, 9. Rocker arm, 91. First arm, 92. Second arm, 93. Third arm, 10. Motor, 11. Mounting seat. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] A smoke baffle door, combined with Figures 1 to 5As shown, the device includes a flue gas damper body made of corrosion-resistant materials, such as stainless steel or special alloys, which have excellent corrosion resistance. The flue gas damper body includes a door frame 1 and blades 8, with blades 8 used to close the door frame 1. A sealing plate is provided between the door frame 1 and the blades 8 to achieve a seal between the door frame 1 and the blades 8 when the blades 8 close the door frame 1, thus ensuring airtightness. A rotating shaft 7 is installed through the blades 8, along the central axis of the blades 8. Both ends of the rotating shaft 7 pass through the door frame 1 and are rotatably assembled with the door frame 1 in a sealed manner. One end of the rotating shaft 7 is connected to a rocker arm 9, which is connected to a motor 10. The motor 10 drives the rocker arm 9 to rotate, thereby rotating the rotating shaft 7 and driving the blades 8 to rotate. The controlled end of the motor 10 is connected to a PLC controller to control the motor 10, thus ensuring response speed.

[0022] The front and rear walls of the door frame 1 are respectively provided with a sealing plate 81, and the sealing plate 81 is provided with the blade 8 protruding around its perimeter; the inner wall of the door frame 1 is provided with a double inner frame plate 2 along the circumference, and the double inner frame plate 2 is provided in correspondence with the two sealing plates 81 when the blade 8 closes the door frame 1; the sealing plate is provided between the two sealing plates 81 and the double inner frame plate 2 and avoids the rotation of the blade 8, so as to ensure the sealing between the blade 8 and the door frame 1 when the blade 8 closes the door frame 1 without affecting the rotation of the blade 8.

[0023] The rocker arm 9 includes a first arm 91, a second arm 92, and a third arm 93. One end of the first arm 91 is fixedly connected to the rotating shaft of the motor 10, and the end of the first arm 91 away from the motor 10 is hinged to one end of the second arm 92. The end of the second arm 92 away from the first arm 91 is hinged to one end of the third arm 93, and the end of the third arm 93 away from the second arm 92 is fixedly connected to the rotating shaft 7. When the motor 10 drives the first arm 91 to rotate, the first arm 91 drives the rotating shaft 7 to rotate through the second arm 92 and the third arm 93, thereby controlling the rotation of the blade 8 and realizing the closing and opening of the door frame 1.

[0024] The motor 10 is fixedly connected to a mounting base 11, and a second mounting hole is provided on the mounting base 11 for mounting the mounting base 11.

[0025] A connecting seat 6 is fixedly installed on the outer wall of the door frame 1 at a position corresponding to the pivot 7, and the pivot 7 is rotatably connected to the connecting seat 6.

[0026] The outer wall of the door frame 1 is provided with a double-layer outer frame plate 3 along the circumference. The double-layer outer frame plate 3 has a first mounting hole 31 along the circumference, through which the flue gas damper door body can be installed. At the same time, a reinforcing rib plate 5 is provided between the double-layer outer frame plates 3. The reinforcing rib plate 5 is fixedly connected to the door frame 1, thereby improving the connection strength between the door frame 1 and the double-layer outer frame plate 3.

[0027] A lifting lug 4 is provided on one outer wall of the door frame 1, which can be used to lift the flue gas damper door.

[0028] In use, this utility model controls the motor 10 through a PLC controller. The motor 10 drives the rotating shaft 7 to rotate through the first arm 91, the second arm 92 and the third arm 93, thereby controlling the rotation of the blade 8 and realizing the closing and opening of the door frame 1.

Claims

1. A flue gas damper door, comprising a flue gas damper door body; the flue gas damper door body comprising a door frame (1) and blades (8) for closing the door frame (1), characterized in that: The flue gas damper body is made of corrosion-resistant material; a sealing plate is provided between the door frame (1) and the blade (8) to achieve a seal between the door frame (1) and the blade (8) when the blade (8) closes the door frame (1); a rotating shaft (7) is provided through the blade (8) along the central axis of the blade (8), both ends of the rotating shaft (7) pass through the door frame (1) and are sealed and rotated with the door frame (1), one end of the rotating shaft (7) is connected to a rocker arm (9), and the rocker arm (9) is connected to a device for driving the rocker arm (9) to rotate the rotating shaft (7). A motor (10) drives the blade (8) to rotate. The controlled end of the motor (10) is connected to a PLC controller for controlling the motor (10). The rocker arm (9) includes a first arm (91) fixedly connected to the rotating shaft of the motor (10). A second arm (92) is hinged to the end of the first arm (91) away from the motor (10). A third arm (93) is hinged to the end of the second arm (92) away from the first arm (91). The end of the third arm (93) away from the second arm (92) is fixedly connected to the rotating shaft (7). The front and rear walls of the door frame (1) are respectively provided with a layer of sealing plate (81) with the blade (8) protruding around the blade (8). The inner wall of the door frame (1) is provided with a double-layer inner frame plate (2) that corresponds to the two sealing plates (81) when the blade (8) closes the door frame (1). The sealing sheet is placed between the two sealing plates (81) and the double-layer inner frame plate (2) and avoids the rotation of the blade (8).

2. A smoke baffle door according to claim 1, characterized in that: The outer wall of the door frame (1) is provided with a double-layer outer frame plate (3) along the circumferential direction, and a first mounting hole (31) is provided on the upper circumferential direction of the double-layer outer frame plate (3).

3. A smoke baffle door according to claim 2, characterized in that: A reinforcing rib plate (5) is provided between the double-layer outer frame plates (3) and is fixedly connected to the door frame (1).

4. A smoke damper door according to claim 1, characterized in that: The door frame (1) is provided with a lifting lug (4) on one side of its outer wall.

5. A smoke baffle door according to claim 1, characterized in that: A connecting seat (6) is fixedly provided on the outer wall of the door frame (1) at a position corresponding to the rotating shaft (7) and is rotatably connected to the rotating shaft (7).

6. A smoke damper door according to claim 1, characterized in that: The motor (10) is fixedly connected to a mounting base (11), and the mounting base (11) has a second mounting hole for mounting the mounting base (11).

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