CN215862361U - Steel bushing steel steam insulating pipe heat insulation fixing joint - Google Patents
Steel bushing steel steam insulating pipe heat insulation fixing joint Download PDFInfo
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- CN215862361U CN215862361U CN202122494384.5U CN202122494384U CN215862361U CN 215862361 U CN215862361 U CN 215862361U CN 202122494384 U CN202122494384 U CN 202122494384U CN 215862361 U CN215862361 U CN 215862361U
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Abstract
The utility model provides a steel-sheathed-steel steam heat-preservation pipe heat-insulation fixing joint which comprises a flange plate, outer protective pipes and a working pipe, wherein the two sides of the flange plate are fixedly connected with the outer protective pipes respectively; a heat insulation layer A is arranged between the flange plate and the two circular ring plates, a heat insulation layer B is arranged between the working pipe and the through hole of the flange plate, and a heat insulation layer C is arranged between the circular ring plates and the outer protective pipe; and a heat insulation layer is arranged between the outer protective pipe and the working pipe which are positioned outside the two circular ring plates. The working pipe and the outer protecting pipe are fixedly connected together through the heat insulating layers, the working pipe is not directly contacted with the outer protecting pipe, the stability of the whole pipeline can be ensured, the heat loss of the outer protecting pipe and the flange can be reduced, and the construction is simple, convenient and easy to implement and convenient to operate.
Description
Technical Field
The utility model relates to a heat preservation pipeline laying technology, in particular to a heat insulation fixing joint of a steel sleeve steel steam heat preservation pipe.
Background
The steel-sheathed-steel steam heat-insulation pipe is widely applied to a direct-buried heat-supply pipeline, and in direct-buried construction, the steel-sheathed-steel steam heat-insulation pipe is usually fixed by adopting a fixed knot and a cement pier, so that the axial displacement and the lateral displacement of the whole pipeline are prevented.
In the prior art, a manufacturing method of a fixed joint is that two sections of outer protecting steel pipes are welded and connected through flange sheets to manufacture a relatively fixed whole, a working pipe passes through the middle of the connected outer protecting pipes, and the working pipe is directly connected with the outer protecting pipes through annular plates; the flange part protruding out of the outer protecting pipe is generally reserved with a certain length so as to be kept fixed with a cement pier or soil. Due to the fact that the thermal bridge exists between the working pipe and the outer protecting pipe, a large amount of heat is dissipated from the outer protecting pipe and the flange of the fixed joint in thermal power transmission, heat loss and pressure drop of a pipeline are increased, thermal efficiency of a pipe network is reduced, and in addition, corrosion resistance of the steel sleeve and stability of the pipeline can be directly affected.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model aims to provide a steel-sleeve steel steam insulating pipe heat-insulating fixing joint, which eliminates a heat bridge by changing the connection between a working pipe and an outer protecting pipe in the fixing joint on the premise of ensuring the stability of the whole pipeline, thereby reducing the heat loss of the outer protecting pipe and a flange.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a steel-sheathed-steel steam heat-preservation pipe heat-insulation fixing joint comprises a flange plate, outer protection pipes and a working pipe, wherein the outer protection pipes are fixedly connected to two sides of the flange plate respectively; a heat insulation layer A is arranged between the flange plate and the two circular ring plates, a heat insulation layer B is arranged between the working pipe and the through hole of the flange plate, and a heat insulation layer C is arranged between the circular ring plates and the outer protective pipe; and a heat insulation layer is arranged between the outer protective pipe and the working pipe which are positioned outside the two circular ring plates.
The heat insulation layer A, the heat insulation layer B and the heat insulation layer C are connected into a whole.
The through hole is coaxial with the outer protective pipes on the two sides of the flange plate; the two circular ring plates are coaxial with the working pipe.
The working pipe is coaxial with the through hole.
The outer end face of the circular ring plate is provided with a plurality of rib plates, one side of each rib plate is connected with the circular ring plate, and the other side of each rib plate is connected with the outer wall of the working pipe.
The utility model has the beneficial effects that: the working pipe and the outer protecting pipe are fixedly connected together through the heat insulating layers, the working pipe is not directly contacted with the outer protecting pipe, the stability of the whole pipeline can be ensured, the heat loss of the outer protecting pipe and the flange can be reduced, and the construction is simple, convenient and easy to implement and convenient to operate.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a partially enlarged view of the present invention.
Fig. 3 is a side view of the present invention.
Fig. 4 is a side view of a flange plate.
In the figure: 1. flange plate, 2, outer pillar, 3, working pipe, 4, ring plate, 5, insulating layer A, 6, insulating layer B, 7, insulating layer C, 8, heat preservation, 9, floor, 101, through-hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, a steel-sheathed-steel steam heat-preservation pipe heat-insulation fixing joint comprises a flange plate 1, outer protection pipes 2 and a working pipe 3, wherein the outer protection pipes 2 are fixedly connected to two sides of the flange plate 1 respectively, a through hole 101 is formed in the middle of the flange plate 1, the working pipe 3 passes through the through hole in the middle of the flange plate and is positioned in the two outer protection pipes 2, two circular ring plates 4 are arranged in the middle of the working pipe 3 at intervals, and the flange plate 1 is positioned between the two circular ring plates 4; a heat insulation layer A5 is arranged between the flange plate 1 and the two circular ring plates 4, a heat insulation layer B6 is arranged between the working pipe 3 and the through hole 101 of the flange plate 1, and a heat insulation layer C7 is arranged between the circular ring plates 4 and the outer protective pipe 2; and a heat insulation layer 8 is arranged between the outer protective pipe 2 and the working pipe 3 which are positioned outside the two circular ring plates 4.
In an embodiment of the present invention, the flange plate 1, the outer protection pipe 2, and the working pipe 3 are all made of steel, the heat insulating layer a5, the heat insulating layer B6, and the heat insulating layer C7 are all made of high pressure asbestos packing, the heat insulating layer 8 is made of common asbestos, and when the high pressure asbestos packing is used, a specific assembling method of the fixing joint is as follows: firstly, winding a high-pressure asbestos packing in the middle of a working pipe 3 to form a heat insulation layer A5, and then sleeving a flange plate 1 in the middle of the heat insulation layer A5; secondly, circular ring plates 4 are respectively arranged on the working pipes 3 on the two sides of the flange plate 1, and the circular ring plates 4 are welded and fixed on the working pipes 3; then, winding a high-pressure asbestos packing between the circular ring plate 4 and the flange plate 1 for forming a heat insulation layer B6, and then winding the high-pressure asbestos packing on the cylindrical surface of the circular ring plate 4 for forming a heat insulation layer C7; and finally, the outer protective pipe 2 is sleeved on the heat insulation layer C7 and is welded and fixed with the flange plate 1.
In another embodiment of the utility model, the heat insulation layer A5, the heat insulation layer B6 and the heat insulation layer C7 are all made of high-pressure asbestos rubber plates, wherein the heat insulation layer B6 and the heat insulation layer C7 can be fixed into a whole, so that the whole fixed joint is simpler and more convenient to manufacture.
The heat insulation layer A5, the heat insulation layer B6 and the heat insulation layer C7 are connected into a whole. The purpose of this is to ensure that there is as little space as possible between them, ensuring a firm support.
The through hole 101 is coaxial with the outer protective pipes 2 on two sides of the flange plate 1; the two circular ring plates 4 are coaxial with the working pipe 3. This is for the consistency of mass produced parts, which facilitates the use of the combination.
The working pipe 3 is coaxial with the through hole 101.
The outer side end face of the circular ring plate 4 is provided with a plurality of rib plates 9, one side of each rib plate 9 is connected with the circular ring plate 4, and the other side of each rib plate 9 is connected with the outer wall of the working pipe 3.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
The utility model is not described in detail in the prior art.
Claims (5)
1. The utility model provides a steel bushing steel steam insulating tube fixed knot that insulates against heat, includes flange plate (1), outer pillar (2) and working pipe (3), characterized by: the flange plate is characterized in that outer protective pipes (2) are fixedly connected to two sides of the flange plate (1) respectively, a through hole (101) is formed in the middle of the flange plate (1), the working pipe (3) penetrates through the through hole in the middle of the flange plate and is positioned in the two outer protective pipes (2), two circular ring plates (4) are arranged in the middle of the working pipe (3) at intervals, and the flange plate (1) is positioned between the two circular ring plates (4); a heat insulation layer A (5) is arranged between the flange plate (1) and the two circular ring plates (4), a heat insulation layer B (6) is arranged between the working pipe (3) and the through hole (101) of the flange plate (1), and a heat insulation layer C (7) is arranged between the circular ring plates (4) and the outer protective pipe (2); an insulating layer (8) is arranged between the outer protective pipe (2) and the working pipe (3) which are positioned at the outer sides of the two circular ring plates (4).
2. The heat insulation fixing joint of the steel-sheathed-steel steam insulating pipe as claimed in claim 1, which is characterized in that: the heat insulation layer A (5), the heat insulation layer B (6) and the heat insulation layer C (7) are connected into a whole.
3. The heat insulation fixing joint of the steel-sheathed-steel steam insulating pipe as claimed in claim 1, which is characterized in that: the through hole (101) is coaxial with the outer protective pipes (2) on the two sides of the flange plate (1); the two circular ring plates (4) are coaxial with the working pipe (3).
4. The heat insulation fixing joint of the steel-sheathed-steel steam insulating pipe as claimed in claim 1, which is characterized in that: the working pipe (3) is coaxial with the through hole (101).
5. The heat insulation fixing joint of the steel-sheathed-steel steam insulating pipe as claimed in claim 1, which is characterized in that: the outer side end face of the circular plate (4) is provided with a plurality of rib plates (9), one side of each rib plate (9) is connected with the circular plate (4), and the other side of each rib plate is connected with the outer wall of the working pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122494384.5U CN215862361U (en) | 2021-10-18 | 2021-10-18 | Steel bushing steel steam insulating pipe heat insulation fixing joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122494384.5U CN215862361U (en) | 2021-10-18 | 2021-10-18 | Steel bushing steel steam insulating pipe heat insulation fixing joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215862361U true CN215862361U (en) | 2022-02-18 |
Family
ID=80262748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122494384.5U Active CN215862361U (en) | 2021-10-18 | 2021-10-18 | Steel bushing steel steam insulating pipe heat insulation fixing joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215862361U (en) |
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2021
- 2021-10-18 CN CN202122494384.5U patent/CN215862361U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Peng Inventor after: Xue Taishan Inventor before: Chen Peng Inventor before: Xue Taishan |
|
| CB03 | Change of inventor or designer information |