CN215174947U - Improved expansion joint device of waste heat boiler - Google Patents
Improved expansion joint device of waste heat boiler Download PDFInfo
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- CN215174947U CN215174947U CN202121235142.8U CN202121235142U CN215174947U CN 215174947 U CN215174947 U CN 215174947U CN 202121235142 U CN202121235142 U CN 202121235142U CN 215174947 U CN215174947 U CN 215174947U
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- waste heat
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Abstract
The utility model provides an improved generation exhaust-heat boiler expansion joint device, include: a frame; the frame is of a rectangular frame structure, mounting screw holes are formed in the left side and the right side of the frame, the section of the frame is of a convex structure, and the left side and the right side of the frame are respectively connected with the side wall of the exhaust diffusion section of the gas turbine and the side wall of the inlet flue of the waste heat boiler; the outer side of the frame is provided with a skin; a filling layer is arranged on the inner side of the frame; an air inlet is arranged on the inner side of the frame; through being provided with frame, overhead gage and lower baffle, through with overhead gage and the equal double-deck activity cross arrangement of lower baffle, not only have the effect of protection thermal-insulated filler and covering, but also can ensure when guaranteeing the leakproofness, the axial free activity of two frames prevents the baffle collision and hinders the frame and freely remove, increases expansion joint device's reliability and life.
Description
Technical Field
The utility model belongs to the technical field of the compensator, more specifically say, in particular to improved generation exhaust-heat boiler expansion joint device.
Background
The expansion joint is a flexible structure device which is arranged between two different metal parts and can be extended and contracted in order to compensate the additional stress caused by the temperature difference and the mechanical vibration existing between the different metal parts which are connected.
As the expansion joint is used as a telescopic elastic compensation element, the expansion joint has the advantages of being deformable, good in telescopic performance, compact in structure and good in heat insulation performance, and is widely applied to power plants containing boiler equipment and the chemical industry.
An improved waste heat boiler inlet non-metallic expansion joint is disclosed by a patent with the patent number CN 204026018U. The technical problems that the heat insulation filler in the prior art runs off quickly and the skin is easy to burn are solved. The novel smoke exhaust ventilator comprises a frame, wherein a covering connected with the frame in a sealing mode is arranged on the frame, heat insulation filler is filled in the frame, a smoke inlet is formed in the frame, the smoke inlet and the covering are arranged on two opposite surfaces of the frame, two opposite and mutually parallel connecting plates are arranged in the frame, one end of each connecting plate is fixedly connected with the frame at the smoke inlet, the other end of each connecting plate extends into the frame, a gap exists between the other end of each connecting plate and the inner wall of the frame, a movable baffle is movably connected to the two connecting plates, the movable baffle can block the smoke inlet, and the movable baffle can move up and down. The utility model discloses can prevent that thermal-insulated filler from running off, have protection thermal-insulated filler and covering, greatly increased reliability and life.
Expansion joints similar to the above applications currently suffer from several disadvantages:
the baffle in the above-mentioned patent makes and fixes in the frame through welding mode, and when the air current was through, the impact force that the air current produced led to metal crate to produce a large amount of axial and radial displacement, consequently can lead to three group's baffles to collide each other, in long-time use, can lead to the baffle to warp even and drop, makes the flue gas direct impact fill, causes the flue gas to leak or the covering burns out, consequently needs further improvement.
Therefore, in view of the above, research and improvement are made for the existing structure and defects, and an improved expansion joint device for a waste heat boiler is provided, so as to achieve the purpose of higher practical value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an improved generation exhaust-heat boiler expansion joint device, baffle messenger in the above-mentioned patent of proposing in solving above-mentioned background art passes through welded mode and fixes in the frame, when the circulation of gas through, the impact force that the air current produced leads to metal crate to produce a large amount of axial and radial displacement, consequently can lead to three group's baffles to collide each other, in long-time use, can lead to the baffle to warp even and drop, make the flue gas direct impact pack, cause the flue gas to leak or the covering burns out, consequently need further modified problem.
The utility model relates to an improved generation exhaust-heat boiler expansion joint device's purpose and efficiency is reached by following specific technological means:
an improved expansion joint device of a waste heat boiler, comprising: a frame; the frame is of a rectangular frame structure, mounting screw holes are formed in the left side and the right side of the frame, the section of the frame is of a convex structure, and the left side and the right side of the frame are respectively connected with the side wall of the exhaust diffusion section of the gas turbine and the side wall of the inlet flue of the waste heat boiler; the outer side of the frame is provided with a skin; a filling layer is arranged on the inner side of the frame; an air inlet is arranged on the inner side of the frame.
Further, the frame further comprises: the fixing rods are of a screw rod structure, four groups of fixing rods are arranged, and two groups of fixing rods are fixedly arranged on two sides of the interior of the frame; the inner side end of the fixed rod is fixedly provided with a lower baffle.
Furthermore, the skin is made of a non-metal material, is fixedly arranged in the middle of the outer side of the frame through a flange, and is mainly formed by compounding multiple layers of materials such as fluororubber glass fiber cloth, a polytetrafluoroethylene film, glass fiber cloth, aluminum silicate fiber cotton and the like; the bottom of the skin is provided with an upper baffle.
Furthermore, the filling layer is filled in the frame and is composed of aluminum silicate heat-insulating cotton, a high-temperature-resistant aluminum foil fabric reflecting layer and a nano aerogel heat-insulating material.
Furthermore, the air inlet is arranged in the middle of the inner side of the frame, and the air inlet and the skin are arranged on two opposite surfaces of the frame.
Furthermore, the lower baffle adopts a rectangular plate structure, the lower baffles are provided with two groups, the outer side ends of the two groups of lower baffles are respectively in sealing fit with two sides of the inner wall of the frame, gaps are radially formed between the two groups of lower baffles, and the length of the lower baffles is equal to three-fourths of the length of the air inlet.
Furthermore, the upper baffle plates are of rectangular plate structures, the upper baffle plates are arranged in two groups, the two groups of upper baffle plates are respectively and integrally arranged on the inner walls, close to the skin, of the two sides in the frame, gaps are radially formed in the two groups of upper baffle plates, and the length of each upper baffle plate is equal to three-fourths of the distance between the inner walls of the frame.
Compared with the prior art, the utility model discloses following beneficial effect has:
through being provided with the frame, overhead gage and lower baffle, through with the equal double-deck activity cross arrangement of overhead gage and lower baffle, keep off the air inlet through lower baffle, block the below with the covering through the overhead gage, can not only cover whole flue gas import, prevent to keep away the thermal-insulated filler loss that produces because of high temperature flue gas direct impact thermal-insulated filler, the actual unit operation in-process has still been considered, gas turbine combustion exhaust is large-traffic, high flow rate flue gas is the biggest along two relative axial displacement of frame, set up the cross baffle along two frame axial, not only have the effect of protection thermal-insulated filler and covering, but also can ensure when guaranteeing the leakproofness, two axial free activities of frame, prevent the baffle collision and hinder the frame free movement, increase expansion joint device's reliability and life.
Drawings
Fig. 1 is a schematic axial view of the three-dimensional structure of the present invention.
Fig. 2 is a schematic view of the frame of the present invention in a partial sectional structure.
Fig. 3 is a schematic view of the frame of the present invention with a partially cut-away axial-side three-dimensional structure.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a frame; 101. fixing the rod; 2. covering a skin; 3. a filling layer; 4. an air inlet; 5. a lower baffle plate; 6. and an upper baffle plate.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 3:
the utility model provides an improved generation exhaust-heat boiler expansion joint device, include: a frame 1; the frame 1 is of a rectangular frame structure, mounting screw holes are formed in the left side and the right side of the frame 1, the section of the frame 1 is of a convex structure, and the left side and the right side of the frame 1 are respectively connected with the side wall of the exhaust diffusion section of the gas turbine and the side wall of an inlet flue of the waste heat boiler; the outer side of the frame 1 is provided with a skin 2; the inner side of the frame 1 is provided with a filling layer 3; the inside of the frame 1 is provided with an air inlet 4.
Wherein, frame 1 still includes: the fixing rods 101 are of screw rod structures, four groups of fixing rods 101 are arranged on the fixing rods 101, and two groups of fixing rods 101 are fixedly arranged on two sides of the interior of the frame 1; the inner end of the fixing rod 101 is fixedly provided with a lower baffle 5.
The frame is characterized in that the skin 2 is made of a non-metal material, the skin 2 is fixedly arranged in the middle of the outer side of the frame 1 through a flange, and the skin 2 is mainly formed by compounding multiple layers of materials such as fluororubber glass fiber cloth, a polytetrafluoroethylene film, glass fiber cloth, aluminum silicate fiber cotton and the like; the bottom of the skin 2 is provided with an upper baffle 6.
Wherein, the filling layer 3 is filled in the frame 1, and the filling layer 3 is made of aluminum silicate heat-insulating cotton, a high-temperature-resistant aluminum foil fabric reflecting layer and a nano aerogel heat-insulating material.
Wherein, the air inlet 4 is arranged in the middle of the inner side of the frame 1, and the air inlet 4 and the skin 2 are arranged on two opposite surfaces of the frame 1.
The lower baffles 5 are rectangular plate structures, two groups of the lower baffles 5 are arranged, the outer side ends of the two groups of the lower baffles 5 are respectively in sealing fit with two sides of the inner wall of the frame 1, gaps are radially arranged on the two groups of the lower baffles 5, and the length of each lower baffle 5 is equal to three-fourths of the length of the air inlet 4; the shape of the lower baffle plates 5 is matched with that of the air inlet 4, and the length of the two groups of lower baffle plates 5 is larger than the size of the air inlet 4; the axial displacement generated by the flowing of the flue gas is absorbed by the two groups of lower baffles 5 which are arranged in a crossed manner, even if disturbance exists in the flue gas, a small amount of high-temperature flue gas impacts the lower baffles 5 firstly, the two groups of lower baffles 5 generate radial displacement, and the impact force is absorbed by the gap between the two groups of lower baffles 5.
The upper baffles 6 are of rectangular plate structures, two groups of the upper baffles 6 are arranged, the two groups of the upper baffles 6 are respectively and integrally arranged on the inner walls, close to the two sides of the skin 2, in the frame 1, gaps are radially arranged between the two groups of the upper baffles 6, and the length of each upper baffle 6 is equal to three-fourths of the distance between the inner walls of the frame 1; the shape of the upper baffles 6 is matched with the distance between the inner walls of the frame 1, and the lengths of the two groups of upper baffles 6 are greater than the distance between the inner walls of the frame 1; through two sets of overhead fenders 6 of cross arrangement, can prevent that this part flue gas from directly impacting covering 2, cause the damage to covering 2, simultaneously, because overhead fenders 6 and lower baffle 5 adopt the same mode of setting up, consequently two sets of overhead fenders 6 also can the clearance absorb axial and radial impact force, guarantee the safe and reliable operation of this device.
The specific use mode and function of the embodiment are as follows:
in the utility model, one side of the frame 1 is connected with the side wall of the exhaust diffusion section of the gas turbine, the other side is connected with the side wall of the inlet flue of the waste heat boiler, the covering 2 is arranged between the side wall of the exhaust diffusion section of the gas turbine and the side wall of the inlet flue of the waste heat boiler, and can absorb axial and radial displacement, as shown in figure 2, when high-temperature smoke passes through the inner side of the frame 1, a large amount of smoke flows to the inlet flue of the waste heat boiler from the air inlet 4 along the right baffle of the lower baffle 5, the axial displacement generated by the smoke flow is absorbed by the two groups of lower baffles 5 which are arranged in a crossed way, and simultaneously, most of smoke is blocked by the two groups of lower baffles 5 to enter the inner side of the frame 1, even if the smoke has disturbance, a small amount of high-temperature smoke impacts the lower baffles 5 firstly, the two groups of lower baffles 5 generate radial displacement, so that the impact force is absorbed by the gap between the two groups of lower baffles 5, and part of smoke always enters the filling layer 3 through the gap between the air inlet 4 and the two groups of lower baffles 5, at this moment, through two sets of overhead fenders 6 of cross arrangement, can prevent that this part flue gas from directly impacting covering 2, cause the damage to covering 2, simultaneously, because overhead fenders 6 and lower baffle 5 adopt the same mode of setting up, consequently two sets of overhead fenders 6 also can the clearance absorb axial and radial impact force, guarantee the safe and reliable operation of this device.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. An improved expansion joint device of a waste heat boiler is characterized by comprising: a frame; the frame is of a rectangular frame structure, mounting screw holes are formed in the left side and the right side of the frame, the section of the frame is of a convex structure, and the left side and the right side of the frame are respectively connected with the side wall of the exhaust diffusion section of the gas turbine and the side wall of the inlet flue of the waste heat boiler; the outer side of the frame is provided with a skin; a filling layer is arranged on the inner side of the frame; an air inlet is arranged on the inner side of the frame.
2. The improved expansion joint device of the waste heat boiler as claimed in claim 1, wherein: the frame also includes:
the fixing rods are of a screw rod structure, four groups of fixing rods are arranged, and two groups of fixing rods are fixedly arranged on two sides of the interior of the frame; the inner side end of the fixed rod is fixedly provided with a lower baffle.
3. The improved expansion joint device of the waste heat boiler as claimed in claim 1, wherein: the covering is made of a non-metal material, is fixedly arranged in the middle of the outer side of the frame through a flange, and is mainly formed by compounding multiple layers of materials such as fluororubber glass fiber cloth, a polytetrafluoroethylene film, glass fiber cloth, aluminum silicate fiber cotton and the like; the bottom of the skin is provided with an upper baffle.
4. The improved expansion joint device of the waste heat boiler as claimed in claim 1, wherein: the filling layer is filled in the frame and is composed of aluminum silicate heat-insulating cotton, a high-temperature-resistant aluminum foil fabric reflecting layer and a nano aerogel heat-insulating material.
5. The improved expansion joint device of the waste heat boiler as claimed in claim 1, wherein: the air inlet is arranged in the middle of the inner side of the frame, and the air inlet and the skin are arranged on two opposite surfaces of the frame.
6. The improved expansion joint device of the waste heat boiler as claimed in claim 2, wherein: the lower baffle adopts a rectangular plate structure, the lower baffles are provided with two groups, the outer side ends of the two groups of lower baffles are respectively in sealing fit with the two sides of the inner wall of the frame, gaps are radially formed in the two groups of lower baffles, and the length of the lower baffles is equal to three-fourths of the length of the air inlet.
7. The improved expansion joint device of the waste heat boiler as claimed in claim 3, wherein: the upper baffle adopts the rectangular plate structure, and the upper baffle is provided with two sets altogether, and two sets of upper baffles respectively the integral type set up in the frame inside be close on the both sides inner wall of covering, and two sets of upper baffles radially are provided with the clearance, and the length of upper baffle equals the three fourths of distance between the frame inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121235142.8U CN215174947U (en) | 2021-06-03 | 2021-06-03 | Improved expansion joint device of waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121235142.8U CN215174947U (en) | 2021-06-03 | 2021-06-03 | Improved expansion joint device of waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215174947U true CN215174947U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121235142.8U Active CN215174947U (en) | 2021-06-03 | 2021-06-03 | Improved expansion joint device of waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215174947U (en) |
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2021
- 2021-06-03 CN CN202121235142.8U patent/CN215174947U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Mengwen Inventor after: Chen Haiwen Inventor after: Chen Yuefei Inventor after: Louhuadong Inventor after: Zhang Hanlai Inventor after: Tong Zhenxiang Inventor after: Xu Bizeng Inventor before: Hu Mengwen Inventor before: Chen Haiwen Inventor before: Louhuadong Inventor before: Zhang Hanlai Inventor before: Tong Zhenxiang Inventor before: Xu Bizeng |