Main flue flashboard with good sealing effect

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to a main flue damper with a good sealing effect, which comprises a first main flue, a second main flue, a mounting plate and the like. The second main flue is slidably mounted on the first main flue, and the mounting plates are symmetrically mounted in the second main flue. According to the utility model, the second sealing plate is pulled to slide out along the guide rod to block the gaps in the vertical direction of the mounting plate, meanwhile, the second sealing plate drives the third sealing plate on the second sealing plate to slide out, and the second electric slide rail is started to drive the third sealing plate to slide out along the second electric slide rail to block the gaps in the four corners of the mounting plate; and finally, a first electric sliding rail is started, a first sealing plate is driven to slide out along the first electric sliding rail, notches in the left-right direction of a mounting plate are blocked, the whole sealing process is completed, due to the fact that each sealing part is independent and can be independently detached according to needs, sealing pieces are convenient to replace, and therefore the good sealing effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a main flue damper with good sealing effect. Background Art

[0002] The main flue damper, also known as the main flue damper or chimney gate, is a crucial control component in the flue gas emission systems of facilities such as industrial boilers, incinerators, and thermal power plants. It is primarily responsible for regulating the opening and closing status of the flue, thereby precisely controlling the flow direction and velocity of the flue gas. During installation and operation, the product manual and industry standards must be strictly followed to ensure the precise assembly and smooth operation of the damper. In addition, regular inspection and maintenance are indispensable to promptly identify and resolve potential faults, ensure the long-term stable operation of the damper, and maintain its excellent sealing performance.

[0003] However, most existing main flue dampers lack a convenient disassembly and assembly mechanism, resulting in excessive time and manpower consumption during damper replacement. Failure to regularly remove dust accumulation or replace damaged dampers will directly lead to gradual degradation of damper sealing performance. Poor sealing can cause flue gas leakage, which not only results in unnecessary energy loss, but can also exacerbate environmental pollution and even pose a serious threat to equipment safety and personnel health. Therefore, a main flue damper with easy-to-replace and good sealing performance is urgently needed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing main flue damper that is difficult to replace and easily leads to poor sealing performance, the utility model provides a main flue damper that is easy to replace and has good sealing effect.

[0005] The technical solution of the present invention: In order to solve the above technical problems, the present invention provides a main flue gate with good sealing effect, including a first main flue, a second main flue, a mounting plate, a lifting assembly and a locking assembly. The second main flue is slidably installed on the first main flue, and the first main flue is provided with a groove matching the second main flue. The second main flue is slidably connected to the groove of the first main flue. A mounting plate is symmetrically installed in the second main flue, and no less than two lifting assemblies are symmetrically arranged between the two mounting plates for sealing the gaps in the upper and lower directions of the mounting plates. A locking assembly is symmetrically and slidably installed on the first main flue for firmly locking the second main flue.

[0006] Preferably, the locking assembly includes a wedge block and a spring, and no less than two wedge blocks are symmetrically and slidingly installed at one end of the first main flue. A spring is arranged between the wedge block and the inner wall of the first main flue, and a slot matching the wedge block is opened on the second main flue, and the wedge block is slidably engaged with the slot of the second main flue.

[0007] Preferably, the lifting assembly includes a second sealing plate and a guide rod. No less than two guide rods are symmetrically arranged on the mounting plate. The second sealing plate is slidably mounted on the two guide rods. The second sealing plate fits tightly with the notch in the upper and lower directions of the mounting plate.

[0008] Preferably, it also includes a first electric slide rail and a first sealing plate. No less than two first electric slide rails are symmetrically installed on the mounting plate. A first sealing plate is slidably installed on the first electric slide rail. The first sealing plate is tightly fitted with the notches in the left and right directions of the mounting plate.

[0009] Preferably, it also includes a third sealing plate and a second electric slide rail, and no less than two second electric slide rails are symmetrically installed on the second sealing plate. The third sealing plate is slidably installed on the second electric slide rail, and the third sealing plate fits tightly with the notches at the four corners of the mounting plate.

[0010] Preferably, it further includes a first sealing ring, a second sealing ring and a third sealing ring. The first sealing ring is provided on the third sealing plate, the second sealing ring is provided on the second sealing plate, and the third sealing ring is provided on the first sealing plate.

[0011] Beneficial effects:

[0012] 1. The utility model pulls the second sealing plate to slide outward along the guide rod to seal the gap in the upper and lower directions of the mounting plate. At the same time, the second sealing plate drives the third sealing plate thereon to slide outward, and the second electric slide rail is started to drive the third sealing plate to slide outward along the second electric slide rail to seal the gaps at the four corners of the mounting plate. Finally, the first electric slide rail is started to drive the first sealing plate to slide outward along the first electric slide rail to seal the gaps in the left and right directions of the mounting plate, completing the entire sealing process. When the sealing parts need to be replaced, since each sealing component is independent, it can be disassembled separately as needed, which is convenient for replacing the seals, thereby ensuring a good sealing effect.

[0013] 2. The utility model is provided with a first sealing ring, a second sealing ring and a third sealing ring. The second sealing ring 801 provided on the second sealing plate 6 is used to enhance the sealing between the second sealing plate 6 and the upper and lower parts of the mounting plate 3; the first sealing ring 8 provided on the third sealing plate 7 is used to enhance the sealing at the four corners of the third sealing plate 7 and the mounting plate 3; the third sealing ring 802 provided on the first sealing plate 5 is used to enhance the sealing between the first sealing plate 5 and the left and right parts of the mounting plate 3. These sealing rings improve the overall sealing performance, can effectively prevent leakage, and have a good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2It is a three-dimensional structural cross-sectional view of the first main flue, the second main flue, the wedge-shaped block and point A of the utility model.

[0016] Figure 3 For this utility model Figure 2 Magnified image of .

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the second main flue, the mounting plate, the first sealing ring and the second sealing ring of the utility model.

[0018] Figure 5 It is a three-dimensional structural sectional view of the mounting plate, the first electric slide rail, the first sealing plate, the second sealing plate, the guide rod, the first sealing ring and the second sealing ring of the utility model.

[0019] Figure 6 It is a three-dimensional structural sectional view of the second sealing plate, the third sealing plate, the second electric slide rail, the first sealing ring and the second sealing ring of the utility model.

[0020] The marks in the accompanying drawings are: 1-first main flue, 2-second main flue, 3-mounting plate, 301-first electric slide rail, 4-wedge block, 401-spring, 5-first sealing plate, 6-second sealing plate, 601-guide rod, 7-third sealing plate, 701-second electric slide rail, 8-first sealing ring, 801-second sealing ring, 802-third sealing ring. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Example 1: A main flue damper with good sealing effect, such as Figure 1 、 Figure 2 and Figure 5 As shown, it includes a first main flue 1, a second main flue 2, a mounting plate 3, a lifting assembly and a locking assembly. The second main flue 2 is slidably installed on the first main flue 1. The first main flue 1 is provided with a slot matching the second main flue 2. The second main flue 2 is slidably engaged with the slot of the first main flue 1. The mounting plates 3 are symmetrically installed in the second main flue 2. Four lifting assemblies are symmetrically arranged between the two mounting plates 3 for blocking the gaps in the upper and lower directions of the mounting plates 3 to prevent leakage of unfiltered or untreated gas. Locking assemblies are symmetrically and slidably installed on the first main flue 1 to firmly lock the second main flue 2 to prevent the second main flue 2 from moving accidentally.

[0023] like Figure 2 and Figure 3As shown, the locking assembly includes a wedge block 4 and a spring 401. Four wedge blocks 4 are symmetrically and slidingly installed at the front end of the first main flue 1. A spring 401 is arranged between the wedge block 4 and the inner wall of the first main flue 1. A slot matching the wedge block 4 is opened on the second main flue 2. The wedge block 4 is slidably engaged with the slot of the second main flue 2. When the second main flue 2 is correctly positioned and aligned with the slot of the first main flue 1, the rebound force of the spring 401 will cause the wedge block 4 to be stuck in the slot of the second main flue 2, thereby locking the second main flue 2 to ensure that its position is fixed.

[0024] like Figure 5 As shown, the lifting assembly includes a second sealing plate 6 and a guide rod 601. Four guide rods 601 are symmetrically arranged on the mounting plate 3. The second sealing plate 6 is slidably installed on the two guide rods 601. The second sealing plate 6 is tightly matched with the notch in the upper and lower directions of the mounting plate 3. The guide rod 601 provides guidance and support for the second sealing plate 6. The second sealing plate 6 slides outward along the guide rod 601 to block the notch in the upper and lower directions of the mounting plate 3, thereby improving the overall sealing performance.

[0025] like Figure 5 As shown, it also includes a first electric slide rail 301 and a first sealing plate 5. Four first electric slide rails 301 are symmetrically installed on the mounting plate 3. The first sealing plate 5 is slidably installed on the first electric slide rail 301. The first sealing plate 5 is tightly matched with the gap in the left and right directions of the mounting plate 3. The first electric slide rail 301 is used to drive the first sealing plate 5 to slide left and right. The first sealing plate 5 slides outward along the first electric slide rail 301 to block the gap in the left and right directions of the mounting plate 3, thereby further enhancing the sealing effect.

[0026] like Figure 6 As shown, it also includes a third sealing plate 7 and a second electric slide rail 701. Four second electric slide rails 701 are symmetrically installed on the second sealing plate 6. The third sealing plate 7 is slidably installed on the second electric slide rail 701. The third sealing plate 7 is tightly matched with the notches at the four corners of the mounting plate 3. The second electric slide rail 701 is used to drive the third sealing plate 7 to slide left and right. The third sealing plate 7 slides outward 1 along the second electric slide rail 70 to block the notches at the four corners of the mounting plate 3, ensuring that the entire device is completely sealed in all directions.

[0027] like Figure 4 and Figure 5As shown, it also includes a first sealing ring 8, a second sealing ring 801 and a third sealing ring 802. The second sealing ring 801 is provided on the second sealing plate 6 to enhance the sealing between the second sealing plate 6 and the upper and lower parts of the mounting plate 3; the first sealing ring 8 is provided on the third sealing plate 7 to enhance the sealing between the third sealing plate 7 and the four corners of the mounting plate 3; the third sealing ring 802 is provided on the first sealing plate 5 to enhance the sealing between the first sealing plate 5 and the left and right parts of the mounting plate 3. These sealing rings improve the overall sealing performance, can effectively prevent leakage, and have a good sealing effect.

[0028] When the main flue damper needs to be used, first, push the second main flue 2 into the slot opened in the first main flue 1, the wedge block 4 is squeezed and pushed into the inner wall of the first main flue 1, and the spring 401 is compressed. When the second main flue 2 is correctly positioned and aligned with the slot of the first main flue 1, the rebound force of the spring 401 will make the wedge block 4 stuck in the slot of the second main flue 2, thereby locking the second main flue 2. Then, pull the second sealing plate 6 to slide outward along the guide rod 601 to block the gap in the upper and lower directions of the mounting plate 3. At the same time, the second sealing plate 6 drives the upper portion thereof to The third sealing plate 7 slides outward, and the second electric slide rail 701 is started, driving the third sealing plate 7 to slide outward along the second electric slide rail 701 to block the gaps at the four corners of the mounting plate 3. Finally, the first electric slide rail 301 is started, driving the first sealing plate 5 to slide outward along the first electric slide rail 301 to block the gaps in the left and right directions of the mounting plate 3, completing the entire sealing process. When the sealing parts need to be replaced, since each sealing component is independent, it can be disassembled separately as needed, which is convenient for replacing the seals, thereby ensuring a good sealing effect.

[0029] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A main flue damper with good sealing effect, comprising a first main flue (1), a second main flue (2) and a mounting plate (3), wherein the second main flue (2) is slidably mounted on the first main flue (1), the first main flue (1) is provided with a notch matching the second main flue (2), the second main flue (2) is slidably engaged with the notch of the first main flue (1), and the mounting plate (3) is symmetrically mounted in the second main flue (2), characterized in that: It also includes a lifting assembly and a locking assembly. No less than two lifting assemblies are symmetrically arranged between the two mounting plates (3) for blocking the gaps in the upper and lower directions of the mounting plates (3). The first main flue (1) is symmetrically and slidably mounted with a locking assembly for firmly locking the second main flue (2).

2. A main flue damper with good sealing effect according to claim 1, characterized in that: The locking assembly comprises a wedge block (4) and a spring (401); at least two wedge blocks (4) are symmetrically and slidably mounted on one end of the first main flue (1); a spring (401) is arranged between the wedge block (4) and the inner wall of the first main flue (1); a notch matching the wedge block (4) is provided on the second main flue (2); the wedge block (4) is slidably engaged with the notch of the second main flue (2).

3. A main flue damper with good sealing effect according to claim 2, characterized in that: The lifting assembly comprises a second sealing plate (6) and a guide rod (601). No less than two guide rods (601) are symmetrically arranged on the mounting plate (3). The second sealing plate (6) is slidably mounted on the two guide rods (601). The second sealing plate (6) is tightly fitted with the notch in the upper and lower directions of the mounting plate (3).

4. A main flue damper with good sealing effect according to claim 3, characterized in that: The utility model further comprises a first electric slide rail (301) and a first sealing plate (5), wherein no less than two first electric slide rails (301) are symmetrically mounted on the mounting plate (3), and a first sealing plate (5) is slidably mounted on the first electric slide rail (301), and the first sealing plate (5) is tightly matched with the notch in the left and right directions of the mounting plate (3).

5. The main flue damper with good sealing effect according to claim 4, characterized in that: The invention also comprises a third sealing plate (7) and a second electric slide rail (701), wherein no less than two second electric slide rails (701) are symmetrically mounted on the second sealing plate (6), and a third sealing plate (7) is slidably mounted on the second electric slide rail (701), and the third sealing plate (7) is tightly matched with the notches at the four corners of the mounting plate (3).

6. A main flue damper with good sealing effect according to claim 5, characterized in that: It also includes a first sealing ring (8), a second sealing ring (801) and a third sealing ring (802); the first sealing ring (8) is arranged on the third sealing plate (7); the second sealing ring (801) is arranged on the second sealing plate (6); and the third sealing ring (802) is arranged on the first sealing plate (5).

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