CN218032049U - Large-displacement high-temperature composite expansion joint - Google Patents
Large-displacement high-temperature composite expansion joint Download PDFInfo
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- CN218032049U CN218032049U CN202222198259.4U CN202222198259U CN218032049U CN 218032049 U CN218032049 U CN 218032049U CN 202222198259 U CN202222198259 U CN 202222198259U CN 218032049 U CN218032049 U CN 218032049U
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- pipe
- compensation unit
- expansion joint
- core pipe
- otic placode
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Abstract
The utility model discloses a big displacement high temperature combined type expansion joint belongs to the pipe-line equipment technical field, the utility model discloses a core pipe, reducing pipe, the compensation unit of setting between core pipe and reducing pipe, the one end of compensation unit is passed through the go-between and is connected with the one end of core pipe, forms the filter chamber between the other end of compensation unit and the core pipe other end, the reducing pipe, and the filter chamber is inside to be fixed with and to be used for filterable screen cloth. The utility model discloses a be provided with the filter chamber that is used for filtering the flue gas dust between compensation unit, core pipe and reducing pipe, avoid the high temperature dust to get into the compensation unit to prolong the life of this product.
Description
Technical Field
The utility model relates to a piping installation technical field, concretely relates to big displacement high temperature combined type expansion joint.
Background
Boiler system and denitration desulfurization system often can produce a large amount of high temperature flue gas when moving, when the high temperature flue gas flows through the different positions of flue, can cause the flue expend with heat and contract with cold to produce the displacement, and the junction of flue especially often produces different displacements because of the expend with heat and contract with cold that relapse. In order to adapt to or reduce the influence of different displacement amounts on the flues, expansion joints are often used for connection at the joints of the flues, and the expansion joints are elastic compensation elements capable of freely stretching and contracting.
The high-temperature flue gas contains a large amount of dust, and when the high-temperature flue gas acts on an expansion joint, the abrasion of the expansion joint is increased, so that the corrugated pipe of the expansion joint is easy to leak locally due to abrasion.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a big displacement high temperature combined type expansion joint.
The technical scheme of the utility model is that: the utility model provides a big displacement high temperature combined type expansion joint, includes core pipe, reducing pipe, sets up the compensation unit between core pipe and reducing pipe, and the one end of compensation unit is passed through the go-between and is connected with the one end of core pipe, forms the filter chamber between the other end of compensation unit and the core pipe other end, the reducing pipe, and the filter chamber is inside to be fixed with and to be used for filterable screen cloth.
According to a further technical scheme, the compensation unit comprises a first working corrugated pipe, a middle connecting pipe and a second working corrugated pipe which are sequentially connected, a sealing unit is formed among the first working corrugated pipe, the middle connecting pipe, the second working corrugated pipe, the outer wall of the core pipe and the connecting ring, and a heat-insulating filling layer and a sealing filler are sequentially arranged in the sealing unit from inside to outside.
According to the further technical scheme, a first flange is fixedly mounted at the end part, protruding out of the connecting ring, of the core pipe, and a second flange is fixedly mounted at the end part of the reducer pipe.
According to the technical scheme, the connecting ring is fixedly provided with a first lug plate, the middle connecting pipe is fixedly provided with a second lug plate, the reducer pipe is fixedly provided with a third lug plate, the first working corrugated pipe is connected to the first lug plate through the connecting pipe, the second working corrugated pipe is connected to the third lug plate through the connecting pipe, and the second lug plate is connected with the connecting pipe through a pipeline.
According to a further technical scheme, the first ear plate, the second ear plate and the third ear plate are connected through a connecting rod.
The utility model has the advantages that:
the utility model discloses a maze separates temperature structure and promotes and separates the temperature effect, promotes bellows life, promotes the product application through gradual change union coupling port, is provided with the filter chamber that is used for filtering the flue gas dust between compensation unit, core pipe and reducing pipe, avoids the dust to get into compensation unit to prolong the life of this product.
Drawings
FIG. 1 is a schematic structural view of the present invention,
the device comprises a core pipe 1, a core pipe 11, a first flange 2, a reducer pipe 21, a second flange 22, a third lug plate 3, a compensation unit 31, a first working corrugated pipe 32, a middle connecting pipe 321, a second lug plate 33, a second working corrugated pipe 34, a sealing unit 35, a heat preservation filling layer 36, sealing filler 4, a connecting ring 41, the first lug plate 5, a filtering cavity 6, a net cover 7, a connecting pipe 8, a pipeline 9 and a connecting rod.
Detailed Description
The invention will be further elucidated below by means of non-limiting examples, with the understanding that the invention is not limited thereto.
As shown in fig. 1, the utility model provides a big displacement high temperature combined type expansion joint, including core pipe 1, reducing pipe 2, set up the compensating unit 3 between core pipe 1 and reducing pipe 2, compensating unit 3's one end is passed through go-between 4 and is connected with the one end of core pipe 1, forms filter chamber 5 between the other end of compensating unit 3 and the core pipe 1 other end, reducing pipe 2, and filter chamber 5 inside is fixed with and is used for filterable screen cloth 6. The net cover 6 forms an ash-proof structure to prevent dust from entering the inner cavity of the corrugated pipe.
The end parts of the core pipe 1 and the reducer pipe 2 adopt different connecting structures, so that the application occasions of products can be improved. The end of the core tube 1 protruding from the connection ring 4 is fixedly provided with a first flange 11, and the end of the reducer pipe 2 is fixedly provided with a second flange 21.
The compensation unit 3 comprises a first working corrugated pipe 31, an intermediate connecting pipe 732 and a second working corrugated pipe 33 which are sequentially connected, a sealing unit 34 is formed among the first working corrugated pipe 31, the intermediate connecting pipe 732, the second working corrugated pipe 33, the outer wall of the core pipe 1 and the connecting ring 4, and a heat-insulating filling layer 35 and a sealing filler 36 are sequentially arranged in the sealing unit 34 from inside to outside. The two sections of working bellows can compensate larger axial displacement and transverse displacement. The connecting ring 4 is fixedly provided with a first lug plate 41, the middle connecting pipe 732 is fixedly provided with a second lug plate 321, the reducer pipe 2 is fixedly provided with a third lug plate 22, the first working corrugated pipe 31 is connected to the first lug plate 41 through the connecting pipe 7, the second working corrugated pipe 33 is connected to the third lug plate 22 through the connecting pipe 7, and the second lug plate 321 is connected with the connecting pipe 7 through the pipeline 8. The first ear plate 41, the second ear plate 321 and the third ear plate 22 are connected through a connecting rod 9. A multi-layer thin-wall corrugated pipe is formed, so that the service life can be prolonged, and the product rigidity is reduced.
To sum up, the utility model discloses a labyrinth separates temperature structure and promotes and separates the temperature effect, promotes bellows life, promotes the product application through gradual change union coupling port, is provided with the filter chamber that is used for filtering flue gas dust between compensation unit 3, core pipe 1 and reducing pipe 2, avoids the dust to get into compensation unit 3 to prolong the life of this product.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a big displacement high temperature combined type expansion joint, includes core pipe, reducing pipe, sets up the compensation unit between core pipe and reducing pipe, its characterized in that: one end of the compensation unit is connected with one end of the core pipe through a connecting ring, a filter cavity is formed between the other end of the compensation unit and the other end of the core pipe as well as the reducer pipe, and a net sleeve for filtering is fixed inside the filter cavity.
2. The large displacement high temperature composite expansion joint of claim 1, wherein: the compensation unit comprises a first working corrugated pipe, a middle connecting pipe and a second working corrugated pipe which are sequentially connected, a sealing unit is formed among the first working corrugated pipe, the middle connecting pipe, the second working corrugated pipe, the outer wall of the core pipe and the connecting ring, and a heat-insulating filling layer and a sealing filler are sequentially arranged in the sealing unit from inside to outside.
3. The large displacement high temperature composite expansion joint of claim 1, wherein: the end part of the core pipe protruding out of the connecting ring is fixedly provided with a first flange, and the end part of the reducer pipe is fixedly provided with a second flange.
4. The large-displacement high-temperature composite expansion joint as claimed in claim 2, wherein: fixed mounting has first otic placode on the go-between, fixed mounting has the second otic placode on the middle takeover, fixed mounting has the third otic placode on the reducing pipe, first work bellows is connected to first otic placode through the takeover, second work bellows is connected to the third otic placode through the takeover, pass through the pipe connection between second otic placode and the takeover.
5. The large-displacement high-temperature composite expansion joint as claimed in claim 4, wherein: the first ear plate, the second ear plate and the third ear plate are connected through a connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222198259.4U CN218032049U (en) | 2022-08-19 | 2022-08-19 | Large-displacement high-temperature composite expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222198259.4U CN218032049U (en) | 2022-08-19 | 2022-08-19 | Large-displacement high-temperature composite expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218032049U true CN218032049U (en) | 2022-12-13 |
Family
ID=84348838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222198259.4U Active CN218032049U (en) | 2022-08-19 | 2022-08-19 | Large-displacement high-temperature composite expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218032049U (en) |
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2022
- 2022-08-19 CN CN202222198259.4U patent/CN218032049U/en active Active
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