Air preheater girth seal with fish scale interlocking mosaic

Abstract

The utility model discloses a fish scale interlocking inlay structure's air preheater annular sealing device, including first bypass sealing piece and second bypass sealing piece, the first bypass sealing piece is equidistant and is provided with first L shape lock piece, and there is first pressing piece between adjacent first L shape lock piece, the second bypass sealing piece is equidistant and is provided with second L shape lock piece, and there is second pressing piece between adjacent second L shape lock piece, when splicing between first bypass sealing piece and second bypass sealing piece, first pressing piece inserts into second L shape lock piece, and first L shape lock piece is pressed on second pressing piece, relate to air preheater technical field, through setting up first L shape lock piece and second L shape lock piece respectively on first bypass sealing piece and second bypass sealing piece, utilize first L shape lock piece and second L shape lock piece respectively and bite tight opposite party, and the whole structure is nested interlock and is integrated, in use, there is interlocking force between the teeth, and will not appear the problem such as opening, misalignment, broken tooth etc.

Description

Technical Field

[0001] This utility model relates to the field of air preheater technology, specifically to an air preheater circumferential sealing device with a fish-scale interlocking embedded structure. Background Technology

[0002] As per the instruction manual Figure 3 As shown, the old bypass sealing sheet is a single-piece structure with comb-like teeth. During on-site installation, two sheets need to be stacked together with staggered edges before being installed on the rotor housing. The new nested self-locking integrated bypass sealing structure consists of two sealing sheets with interlocking teeth, which are directly interlocked in the workshop to form a stable nested structure, eliminating the need for on-site stacking. Because the old comb-tooth sealing sheet lacks interlocking between the two sheets, it is prone to problems such as gaps, flash gaps, misalignment, missing teeth, and detachment during use. Utility Model Content

[0003] In view of the problems existing in the circumferential sealing device of the air preheater with fish scale interlocking embedded structure, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide an air preheater circumferential sealing device with a fish scale interlocking inlay structure, which solves the problem that the old comb-tooth sealing sheet is prone to problems such as opening, gaps, misalignment, missing teeth, and falling off during use because the two pieces are not interlocked.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] An air preheater circumferential sealing device with a fish-scale interlocking embedded structure includes a first bypass sealing sheet and a second bypass sealing sheet. The first bypass sealing sheet is provided with first L-shaped locking pieces at equal intervals, and a first pressing piece is provided between adjacent first L-shaped locking pieces. The second bypass sealing sheet is provided with second L-shaped locking pieces at equal intervals, and a second pressing piece is provided between adjacent second L-shaped locking pieces.

[0007] As a preferred embodiment of the air preheater circumferential sealing device with fish scale interlocking embedded structure described in this utility model, wherein: when the first bypass sealing sheet and the second bypass sealing sheet are spliced ​​together, the first pressure plate is inserted into the second L-shaped locking plate, and the first L-shaped locking plate presses on the second pressure plate.

[0008] As a preferred embodiment of the air preheater circumferential sealing device with fish scale interlocking embedded structure described in this utility model, wherein: the first bypass sealing sheet has first notches at equal intervals, and the first L-shaped locking sheet is located at the first notch;

[0009] The second bypass sealing plate has second notches at equal intervals, and the second L-shaped locking plate is located at the second notch.

[0010] As a preferred embodiment of the air preheater circumferential sealing device with fish scale interlocking inlay structure described in this utility model, wherein: when the first bypass sealing sheet and the second bypass sealing sheet are spliced ​​together, the second L-shaped locking sheet presses against the first pressing sheet, and the first L-shaped locking sheet presses against the second pressing sheet.

[0011] Compared with existing technologies:

[0012] By setting a first L-shaped locking piece and a second L-shaped locking piece on the first bypass sealing plate and the second bypass sealing plate respectively, the first L-shaped locking piece and the second L-shaped locking piece interlock tightly with each other, and the whole structure is nested and interlocked as one. In use, there is an interlocking force between the teeth, and problems such as opening, misalignment, and broken teeth will not occur. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model;

[0014] Figure 2 A plan view of the first bypass sealing sheet and the second bypass sealing sheet provided in Embodiment 1 of this utility model;

[0015] Figure 3 This is a schematic diagram of an existing bypass sealing sheet provided in Embodiment 1 of this utility model.

[0016] In the figure: First bypass sealing plate 1, first pressure plate 11, first L-shaped locking plate 12, first notch 13, second bypass sealing plate 2, second pressure plate 21, second L-shaped locking plate 22, second notch 23. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0018] This utility model provides an air preheater circumferential sealing device with a fish-scale interlocking embedded structure. Please refer to [link / reference]. Figure 1-3 It includes a first bypass sealing sheet 1 and a second bypass sealing sheet 2. The first bypass sealing sheet 1 is provided with first L-shaped locking pieces 12 at equal intervals, and a first pressing piece 11 is provided between adjacent first L-shaped locking pieces 12. The second bypass sealing sheet 2 is provided with second L-shaped locking pieces 22 at equal intervals, and a second pressing piece 21 is provided between adjacent second L-shaped locking pieces 22.

[0019] When the first bypass sealing sheet 1 and the second bypass sealing sheet 2 are spliced ​​together, the first pressure sheet 11 is inserted into the second L-shaped locking sheet 22, and the first L-shaped locking sheet 12 is pressed on the second pressure sheet 21.

[0020] The first bypass sealing sheet 1 has first notches 13 at equal intervals, and the first L-shaped locking piece 12 is located at the first notch 13;

[0021] The second bypass sealing sheet 2 has second notches 23 at equal intervals, and the second L-shaped locking piece 22 is located at the second notch 23.

[0022] When the first bypass sealing sheet 1 and the second bypass sealing sheet 2 are spliced ​​together, the second L-shaped locking sheet 22 presses the first pressing sheet 11, and the first L-shaped locking sheet 12 presses the second pressing sheet 21, thereby achieving a tight interlocking between the first bypass sealing sheet 1 and the second bypass sealing sheet 2.

[0023] In practical use, when splicing the first bypass sealing sheet 1 and the second bypass sealing sheet 2, the first pressure plate 11 is inserted into the second L-shaped locking plate 22, the first L-shaped locking plate 12 is pressed on the second pressure plate 21, and the second L-shaped locking plate 22 presses the first pressure plate 11 and the first L-shaped locking plate 12 presses the second pressure plate 21, thereby achieving a tight interlocking between the first bypass sealing sheet 1 and the second bypass sealing sheet 2.

[0024] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An air preheater circumferential sealing device with a fish-scale interlocking embedded structure, comprising a first bypass sealing plate (1) and a second bypass sealing plate (2), characterized in that: The first bypass sealing sheet (1) is provided with first L-shaped locking pieces (12) at equal intervals, and a first pressure piece (11) is provided between adjacent first L-shaped locking pieces (12); the second bypass sealing sheet (2) is provided with second L-shaped locking pieces (22) at equal intervals, and a second pressure piece (21) is provided between adjacent second L-shaped locking pieces (22). When the first bypass sealing sheet (1) and the second bypass sealing sheet (2) are spliced ​​together, the first pressure sheet (11) is inserted into the second L-shaped locking sheet (22), and the first L-shaped locking sheet (12) is pressed on the second pressure sheet (21); The first bypass sealing plate (1) has first notches (13) at equal intervals, and the first L-shaped locking plate (12) is located at the first notch (13); The second bypass sealing piece (2) has a second notch (23) at equal intervals, and the second L-shaped locking piece (22) is located at the second notch (23).

2. The circumferential sealing device for an air preheater with a fish-scale interlocking embedded structure according to claim 1, characterized in that, When the first bypass sealing plate (1) and the second bypass sealing plate (2) are spliced ​​together, the second L-shaped locking plate (22) presses the first pressing plate (11), and the first L-shaped locking plate (12) presses the second pressing plate (21).

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