CN223596654U - Bypass labyrinth self-locking sealing device of air preheater - Google Patents
Bypass labyrinth self-locking sealing device of air preheaterInfo
- Publication number
- CN223596654U CN223596654U CN202423214272.XU CN202423214272U CN223596654U CN 223596654 U CN223596654 U CN 223596654U CN 202423214272 U CN202423214272 U CN 202423214272U CN 223596654 U CN223596654 U CN 223596654U
- Authority
- CN
- China
- Prior art keywords
- bypass
- sealing piece
- nut
- self
- air preheater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a bypass labyrinth self-locking type sealing device of an air preheater, which belongs to the technical field of air preheaters and comprises two groups of shells, wherein one side of each of the two groups of shells is provided with L-shaped rotor angle steel, one side of each group of shells is detachably connected with a first bypass sealing piece and a second bypass sealing piece through a fixing assembly, and spaces between the first bypass sealing piece and the L-shaped rotor angle steel and the second bypass sealing piece are set as decompression cavities. The fixed subassembly includes L template, the L template is through first coupling assembling detachable connection on the casing, connecting plate fixed mounting is on the L template, and can dismantle through the second coupling assembling on the connecting plate and connect first bypass sealing piece and second bypass sealing piece. According to the utility model, the decompression cavity is formed between the first sealing piece and the L-shaped rotor angle steel by utilizing the first sealing piece and the second sealing piece, so that the problem of air leakage can be further reduced.
Description
Technical Field
The utility model relates to the technical field of air pre-heaters, in particular to a bypass labyrinth self-locking type sealing device of an air pre-heater.
Background
The air leakage of the rotary air preheater consists of three parts, namely a radial part, an axial part and a bypass (the bypass is also called an annular direction). The axial and bypass air leakage can be regarded as a whole, because the air leakage firstly enters the area between the air preheater shell and the rotor from the bypass, and then flows through the sealing clearance channel between the axial arc-shaped plate and the axial sealing piece, and leaks from the air side to the flue gas side. Therefore, the bypass of the air preheater is a first air defense line for air leakage, the sealing gap channel between the axial arc-shaped plate and the axial sealing piece is a second air defense line, the first air defense line is firmly prevented, the second air defense line is light in pressure, the whole air defense is more reliable, and the air leakage is small, as shown in fig. 7.
The conventional bypass seal, i.e., the first line of defense, is formed by a ring of bypass seal segments mounted on the rotor housing and seal profiles mounted on the rotor, sealing circumferentially around the outer periphery of the rotor. The sealing section steel has two types of T type and L type, and the bypass sealing piece of the conventional method is only one, namely the vertical surface of the sealing section steel, and the sealing section steel is particularly shown in fig. 8.
The conventional structure of the bypass sealing sheet is a comb-tooth type sealing sheet, two sheets are separately manufactured, and two sheets are stacked together during field installation, and the two sheets are of a separated structure after installation, so that the conditions of comb-tooth curling, dislocation, dropping and the like are easily caused during operation, and the bypass sealing sheet is particularly shown in fig. 9. Therefore, the invention discloses a bypass labyrinth self-locking type sealing device of an air preheater.
Disclosure of utility model
The present utility model has been made in view of the above and/or problems occurring in prior art air preheater bypass labyrinth self-locking seals.
Therefore, the utility model aims to provide a bypass labyrinth self-locking type sealing device of an air preheater, which can solve the problems existing in the prior art.
In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:
The utility model provides an air preheater bypass maze self-locking sealing device, its includes two sets of casings, two sets of one side of casing all is equipped with L type rotor angle steel, every group one side of casing all can dismantle through fixed subassembly and connect first bypass sealing piece and second bypass sealing piece, and space between first bypass sealing piece and second bypass sealing piece and the L type rotor angle steel is established to the decompression chamber.
As a preferable scheme of the bypass labyrinth self-locking type sealing device of the air preheater, the utility model comprises the following steps:
The L-shaped plate is detachably connected to the shell through the first connecting component;
The connecting plate is fixedly arranged on the L-shaped plate, and the connecting plate is detachably connected with the first bypass sealing piece and the second bypass sealing piece through the second connecting component.
As a preferable scheme of the bypass labyrinth self-locking type sealing device of the air preheater, the first connecting assembly comprises:
the stud is fixedly arranged on the shell;
one end of the stud penetrates through the pressing plate;
The first nut is connected to the stud in a threaded mode.
As a preferable scheme of the bypass labyrinth self-locking type sealing device of the air preheater, the pressure plate is contacted with the L-shaped plate, and the first nut is contacted with the pressure plate.
As a preferable scheme of the bypass labyrinth self-locking type sealing device of the air preheater, the second connecting assembly comprises:
one end of the screw sequentially penetrates through the connecting plate, the first bypass sealing piece and the second bypass sealing piece;
and the second nut is in threaded connection with the screw.
As a preferable scheme of the bypass labyrinth self-locking type sealing device of the air preheater, a first gasket is arranged between the head of the second nut and the connecting plate, and one end of the second nut penetrates through the first gasket.
As a preferable scheme of the bypass labyrinth self-locking type sealing device of the air preheater, a second gasket is arranged between the second nut and the second bypass sealing piece, and one end of the second nut penetrates through the second gasket.
As a preferable scheme of the bypass labyrinth self-locking type sealing device of the air preheater, the first bypass sealing piece and the second bypass sealing piece are composed of a first sealing piece and a second sealing piece which are identical in structure, folding holes are formed in the first sealing piece and the second sealing piece, and the first sealing piece and the second sealing piece are mutually overlapped.
Compared with the prior art:
1. according to the utility model, the sealing sheets are laminated into a self-locking structure, so that the problem of no curling dislocation can be solved, and the sealing effect is long-term and effective;
2. According to the utility model, the decompression cavity is formed between the first sealing piece and the L-shaped rotor angle steel by utilizing the first sealing piece and the second sealing piece, so that the problem of air leakage can be further reduced;
3. The utility model has the advantages of stable structure, long service life, simple design, small size, convenience, low cost and strong expansibility.
Drawings
FIG. 1 is a schematic elevational view of the structure of the present utility model;
FIG. 2 is a schematic elevation view of a partial structure of the present utility model;
FIG. 3 is a schematic front view of a first sealing plate of the present utility model;
FIG. 4 is a schematic side view of a first sealing panel of the present utility model;
FIG. 5 is a schematic front view of a second sealing plate of the present utility model;
FIG. 6 is a schematic side view of a second sealing panel of the present utility model;
FIG. 7 is a schematic diagram of the prior art;
FIG. 8 is a prior art diagram;
fig. 9 is a prior art triple schematic diagram.
In the figure, a housing 10, an L-shaped rotor angle 20, a first bypass seal piece 30, a second bypass seal piece 31, an L-shaped plate 40, a connecting plate 41, a stud 50, a pressing plate 51, a first nut 52, a screw 60, a second nut 61, a first gasket 62, a second gasket 63, a first seal piece 70, and a second seal piece 71 are shown.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
The utility model provides a bypass labyrinth self-locking type sealing device of an air preheater, referring to fig. 1-6, which comprises two groups of shells 10, wherein one side of each group of shells 10 is provided with an L-shaped rotor angle steel 20, one side of each group of shells 10 is detachably connected with a first bypass sealing piece 30 and a second bypass sealing piece 31 through a fixing assembly, and the space between the first bypass sealing piece 30 and the second bypass sealing piece 31 and the L-shaped rotor angle steel 20 is set as a decompression cavity.
The fixing component comprises an L-shaped plate 40 and a connecting plate 41;
The L-shaped plate 40 is detachably connected to the housing 10 by a first connection assembly, a connection plate 41 is fixedly mounted on the L-shaped plate 40, and the connection plate 41 is detachably connected to the first bypass seal 30 and the second bypass seal 31 by a second connection assembly.
The first connecting component comprises a stud 50, a pressing plate 51 and a first nut 52;
The stud 50 is fixedly installed on the housing 10, one end of the stud 50 passes through the pressing plate 51, the first nut 52 is in threaded connection with the stud 50, the pressing plate 51 is in contact with the L-shaped plate 40, and the first nut 52 is in contact with the pressing plate 51.
The second connection assembly includes a screw 60, a second nut 61, a first washer 62, a second washer 63;
One end of the screw 60 sequentially passes through the connection plate 41, the first bypass sealing piece 30 and the second bypass sealing piece 31, the second nut 61 is in threaded connection with the screw 60, a first gasket 62 is arranged between the head of the second nut 61 and the connection plate 41, one end of the second nut 61 passes through the first gasket 62, a second gasket 63 is arranged between the second nut 61 and the second bypass sealing piece 31, and one end of the second nut 61 passes through the second gasket 63.
The first bypass sealing piece 30 and the second bypass sealing piece 31 are respectively composed of a first sealing piece 70 and a second sealing piece 71 which are identical in structure, folding holes are formed in the first sealing piece 70 and the second sealing piece 71, the first sealing piece 70 and the second sealing piece 71 are mutually overlapped, wherein the bypass sealing piece is manufactured by processing a steel plate with the thickness of 1.5mm, is made of cowden steel, is nested and installed in a factory, is overlapped and pressed together by a die to form a group, and can be installed on site by adjusting angles, the installation period is short, and the sealing effect is good.
When the method is specifically used, the method comprises the following specific steps:
The L-shaped plate 40 can be fixed by threading the pressing plate 51 through the stud 50, then placing the L-shaped plate 40 between the housing 10 and the pressing plate 51, and then threading the first nut 52 onto the stud 50, and after fixing the L-shaped plate 40, one end of the screw 60 can be threaded through the first gasket 62, the connecting plate 41, the first bypass seal piece 30, the second bypass seal piece 31 and the second gasket 63 in this order, and then threading the second nut 61 onto the screw 60, so that the first bypass seal piece 30 and the second bypass seal piece 31 can be fixed, and after fixing the first bypass seal piece 30 and the second bypass seal piece 31, a decompression chamber can be formed between the first bypass seal piece 30, the second bypass seal piece 31 and the L-shaped rotor angle 20.
Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The utility model provides an air preheater bypass maze self-locking sealing device, includes two sets of casings (10), two sets of one side of casing (10) all is equipped with L type rotor angle steel (20), its characterized in that, one side of every set of casing (10) all is through fixed subassembly detachable connection first bypass sealing piece (30) and second bypass sealing piece (31), and space between first bypass sealing piece (30) and second bypass sealing piece (31) and L type rotor angle steel (20) is set up as the decompression chamber;
The first bypass sealing piece (30) and the second bypass sealing piece (31) are composed of a first sealing piece (70) and a second sealing piece (71) which are identical in structure, folding holes are formed in the first sealing piece (70) and the second sealing piece (71), and the first sealing piece (70) and the second sealing piece (71) are mutually overlapped.
2. The air preheater bypass labyrinth self-locking seal as recited in claim 1, wherein said securing assembly comprises:
an L-shaped plate (40), wherein the L-shaped plate (40) is detachably connected to the shell (10) through a first connecting assembly;
The connecting plate (41), connecting plate (41) fixed mounting is on L template (40), and can dismantle through second coupling assembling on connecting plate (41) and connect first bypass sealing piece (30) and second bypass sealing piece (31).
3. The air preheater bypass labyrinth self-locking seal as set forth in claim 2, wherein said first connection assembly comprises:
The stud (50), the said stud (50) is fixedly mounted on body (10);
A pressing plate (51), wherein one end of the stud (50) passes through the pressing plate (51);
-a first nut (52), said first nut (52) being screwed onto the stud (50).
4. A self-locking labyrinth seal for an air preheater according to claim 3, wherein said pressure plate (51) is in contact with said L-shaped plate (40) and said first nut (52) is in contact with said pressure plate (51).
5. The air preheater bypass labyrinth self-locking seal as set forth in claim 2, wherein said second connection assembly comprises:
A screw (60), one end of the screw (60) sequentially passes through the connecting plate (41), the first bypass sealing piece (30) and the second bypass sealing piece (31);
And a second nut (61), wherein the second nut (61) is in threaded connection with the screw (60).
6. The air preheater bypass labyrinth self-locking sealing device according to claim 5, wherein a first gasket (62) is arranged between the head of the second nut (61) and the connecting plate (41), and one end of the second nut (61) passes through the first gasket (62).
7. The air preheater bypass labyrinth self-locking type sealing device according to claim 6, wherein a second gasket (63) is arranged between the second nut (61) and the second bypass sealing piece (31), and one end of the second nut (61) passes through the second gasket (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423214272.XU CN223596654U (en) | 2024-12-25 | 2024-12-25 | Bypass labyrinth self-locking sealing device of air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423214272.XU CN223596654U (en) | 2024-12-25 | 2024-12-25 | Bypass labyrinth self-locking sealing device of air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223596654U true CN223596654U (en) | 2025-11-25 |
Family
ID=97746291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202423214272.XU Active CN223596654U (en) | 2024-12-25 | 2024-12-25 | Bypass labyrinth self-locking sealing device of air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223596654U (en) |
-
2024
- 2024-12-25 CN CN202423214272.XU patent/CN223596654U/en active Active
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