CN211550732U - Heat-insulation anti-drag sliding support - Google Patents
Heat-insulation anti-drag sliding support Download PDFInfo
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- CN211550732U CN211550732U CN201922444443.0U CN201922444443U CN211550732U CN 211550732 U CN211550732 U CN 211550732U CN 201922444443 U CN201922444443 U CN 201922444443U CN 211550732 U CN211550732 U CN 211550732U
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Abstract
The utility model belongs to overhead line device field relates to a thermal-insulated drag reduction sliding support, sets up between concrete pier and working pipeline, including pre-buried steel sheet, pre-buried steel sheet is pre-buried at the concrete pier upper surface, and pre-buried steel sheet upper surface is fixed with band steel ring frame, has laid the heat insulating mattress in the band steel ring frame inner circle, and heat insulating mattress thickness is higher than band steel ring frame thickness, and the heat insulating mattress top is equipped with the sliding steel sheet, sliding steel sheet upper surface fixed connection conduit saddle bottom, and the conduit saddle upper surface is convex concave surface. The utility model has the advantages of reasonable design, the coefficient of friction is less and the less heat insulating mattress of coefficient of heat transfer between increase and the steel, reduces the frictional resistance between the pre-buried steel sheet of sliding steel sheet and concrete mound on the one hand, and on the other hand can reduce the heat transfer loss that causes because of sliding contact.
Description
Technical Field
The utility model relates to a thermal-insulated drag reduction sliding support belongs to overhead line device field.
Background
In the working process of working pipelines such as steam or high-temperature water pipes, the working pipelines can generate thermal displacement along the axis direction of the pipelines along with the temperature of a pipeline conveying medium rising to the working temperature. When the steam or high-temperature water pipe generates thermal displacement, the sliding support of the support slides between the sliding steel plate at the bottom of the support and the embedded steel plate on the concrete fixing pier, and the bottom of the steam or high-temperature water pipe can still be effectively supported in the thermal displacement generation process; however, the sliding coefficient between the steels is 0.3, the friction coefficient is large, and the friction force formed between the steels is relatively large; and the heat conductivity coefficient of the steel plate is 36W/m.k, the heat conductivity coefficient is larger, more heat is dissipated, and more energy loss is caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a thermal-insulated drag reduction sliding support, this thermal-insulated drag reduction sliding support increase with between the steel coefficient of friction is less with the less heat insulating mattress of coefficient of heat transfer, reduce the frictional force between sliding steel plate and the pre-buried steel plate on the one hand, on the other hand can reduce the heat transfer loss because of sliding contact causes.
Thermal-insulated drag reduction sliding support, set up between concrete pier and working pipeline, including pre-buried steel sheet, pre-buried steel sheet is pre-buried at the concrete pier upper surface, pre-buried steel sheet upper surface is fixed with band steel annular frame, has laid the heat insulating mattress in the band steel annular frame inner circle, heat insulating mattress thickness is higher than band steel annular frame thickness, the heat insulating mattress top is equipped with the sliding steel sheet, sliding steel sheet upper surface fixed connection conduit saddle bottom, the conduit saddle upper surface is convex concave surface, convex concave surface and working pipeline outer wall phase-match.
The embedded steel plate and the flat steel annular frame are fixed by welding, the outer pipe wall of a working pipeline such as a steam or high-temperature water pipe and the like is fixed by welding with the arc-shaped concave surface, and in a static use state, the sliding steel plate is only contacted with the heat insulation pad, the heat conductivity coefficient of the heat insulation pad is small, and the heat transfer loss is reduced; when the relative position of the sliding steel plate and the concrete pier needs to be changed, relative sliding is generated between the bottom surface of the sliding steel plate and the upper surface of the heat insulation pad. The heat insulating pad sets up inside band steel annular frame, effectively prevents to slide steel sheet and heat insulating pad sliding friction in-process heat insulating pad appearance should not produce the position removal.
Preferably, the annular frame of band steel be rectangular form, the long limit of annular frame of band steel arranges along the working channel axis direction, the top at annular frame of band steel and heat insulating mattress one end is arranged to the slip steel sheet. The sliding steel plate is eccentrically installed on the heat insulation pad and is installed in the reverse direction of the thermal displacement of the working pipeline, when the working pipeline is heated to generate the thermal displacement by the eccentric installation mode, enough thermal displacement space is reserved between the sliding steel plate and the heat insulation pad, and the design length of the heat insulation pad and the pre-buried steel plate is reduced on the basis that the working pipeline is effectively supported.
Preferably, the heat insulation pad is a polytetrafluoroethylene plate, and the heat conductivity coefficient of the polytetrafluoroethylene plate is 0.24W/m.k, so that heat transfer loss is greatly reduced; the sliding friction coefficient of the steel and the polytetrafluoroethylene plate is 0.1, so that the resistance caused by sliding friction is greatly reduced, the stress of the sliding support is further reduced, and the engineering investment of a concrete pier and a steel member is reduced; and moreover, fine copper wires are added in the polytetrafluoroethylene plate, so that the supporting strength of the polytetrafluoroethylene plate is improved.
Preferably, the conduit saddle middle part position be equipped with the exhaust hole, the conduit saddle passes through welded fastening with the working pipeline, the conduit saddle the inside is airtight gas, when the conveying medium temperature rose in the pipeline, airtight gas in the conduit saddle can be heated the inflation because of pipeline heat transfer, influences the stability that the conduit saddle supported, the setting in exhaust hole can make the interior gas of being heated of conduit saddle in time discharge to the job stabilization nature of guarantee conduit saddle.
Preferably, the height of the upper surface of the concrete pier is consistent with that of the upper surface of the embedded steel plate, the embedded steel plate is provided with a perforated anchor bar, the perforated anchor bar is embedded in the concrete pier, and the embedded steel plate and the concrete pier are fixed stably.
Compared with the prior art, the utility model beneficial effect who has is:
the utility model has reasonable structure design, the heat conductivity coefficient of the polytetrafluoroethylene plate is 0.24W/m.k, and the heat transfer loss is greatly reduced; and the sliding friction coefficient of the steel and the polytetrafluoroethylene plate is 0.1, so that the resistance generated by sliding friction is greatly reduced, the stress of the sliding support is further reduced, and the engineering investment of a concrete pier and a steel member is reduced.
Drawings
FIG. 1 is a schematic structural view (front view) of a heat-insulating and drag-reducing sliding support;
FIG. 2 is a schematic structural view (left side view) of the heat-insulating and drag-reducing sliding support;
fig. 3 and a partial enlarged view of a in fig. 2;
fig. 4 is a structural schematic diagram of a flat steel annular frame.
In the figure: 1. a pipe bracket; 2. sliding a steel plate; 3. a heat insulating pad; 4. a flat steel annular frame; 5. pre-burying a steel plate; 6. concrete piers; 7. an exhaust hole; 8. and (4) a working pipeline.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as in fig. 1-4, thermal-insulated drag reduction sliding support, the setting is between concrete mound 6 and working pipeline 8, including pre-buried steel sheet 5, pre-buried steel sheet 5 is pre-buried at concrete mound 6 upper surface, pre-buried steel sheet 5 upper surface fixed has band steel ring frame 4, has laid heat insulating mattress 3 in the band steel ring frame 4 inner circle, heat insulating mattress 3 thickness is higher than band steel ring frame 4 thickness, heat insulating mattress 3 top is equipped with sliding steel sheet 2, sliding steel sheet 2 upper surface fixed connection conduit saddle 1 bottom, conduit saddle 1 upper surface is convex concave surface, convex concave surface and 8 outer wall phase-matchs of working pipeline.
In this embodiment:
the flat steel annular frame 4 is rectangular, the long side of the flat steel annular frame 4 is arranged along the axial direction of the working pipeline 8, and the sliding steel plate 2 is arranged above one end of the heat insulation pad 3 along the axial direction of the working pipeline 8. The eccentric installation of slip steel sheet 2 on heat insulating mattress 3 to install in 8 thermal displacement's of working pipeline reversal, when this kind of eccentric installation's mode made 8 thermal displacements of working pipeline, there was sufficient thermal displacement space between slip steel sheet 2 and the heat insulating mattress 3, on the basis that guarantees that 8 of working pipeline obtain effective support, reduced heat insulating mattress 3 and pre-buried steel sheet 5's design length.
The heat insulation pad 3 is a polytetrafluoroethylene plate, and the heat conductivity coefficient of the polytetrafluoroethylene plate is 0.24W/m.k, so that heat transfer loss is greatly reduced; the sliding friction coefficient of the steel and the polytetrafluoroethylene plate is 0.1, so that the resistance caused by sliding friction is greatly reduced, the stress of the sliding support is further reduced, and the engineering investment of the concrete pier 6 and a steel member is reduced; and moreover, fine copper wires are added in the polytetrafluoroethylene plate, so that the supporting strength of the polytetrafluoroethylene plate is improved.
The middle position of the pipe bracket 1 is provided with an exhaust hole 7, the pipe bracket 1 and the working pipeline 8 are fixed by welding, airtight gas is in the pipe bracket 1, when the temperature of a conveying medium in the working pipeline 8 rises, the airtight gas in the pipe bracket 1 can be thermally expanded to influence the stability supported by the pipe bracket 1, and the heated gas in the pipe bracket 1 can be timely discharged by the exhaust hole 7 to ensure the working stability of the pipe bracket 1. The height of the upper surface of the concrete pier 6 is consistent with that of the upper surface of the embedded steel plate 5, the embedded steel plate 5 is provided with a perforation anchor bar, the perforation anchor bar is embedded in the concrete pier 6, and the embedded steel plate 5 and the concrete pier 6 are fixed stably.
The embedded steel plate 5 and the flat steel annular frame 4 are fixed by welding, the outer pipe wall of a working pipeline 8 such as a steam or high-temperature water pipe and the like is fixed by welding with the arc concave surface of the pipe bracket 1, and in a static use state, the sliding steel plate 2 only contacts with the polytetrafluoroethylene plate, and the heat conductivity coefficient of the polytetrafluoroethylene plate is small, so that the heat transfer loss is reduced; when the relative position of the sliding steel plate 2 and the concrete pier 6 needs to be changed, relative sliding is generated between the bottom surface of the sliding steel plate 2 and the upper surface of the polytetrafluoroethylene plate. The polytetrafluoroethylene plate is arranged inside the flat steel annular frame 4, so that the sliding steel plate 2 and the polytetrafluoroethylene plate in the sliding friction process are effectively prevented from moving due to the fact that the position of the heat insulating pad 3 does not need to be generated. The arrows in fig. 2 indicate the direction of thermal displacement of the working pipe.
Claims (5)
1. The utility model provides a thermal-insulated drag reduction sliding support, sets up between concrete mound (6) and working line (8), its characterized in that: including pre-buried steel sheet (5), pre-buried steel sheet (5) are pre-buried at concrete pier (6) upper surface, pre-buried steel sheet (5) upper surface is fixed with band steel annular frame (4), heat insulating mattress (3) have been laid in band steel annular frame (4) inner circle, heat insulating mattress (3) thickness is higher than band steel annular frame (4) thickness, heat insulating mattress (3) top is equipped with sliding steel board (2), sliding steel board (2) upper surface fixed connection conduit saddle (1) bottom, conduit saddle (1) upper surface is convex concave surface, convex concave surface and working pipeline (8) outer wall phase-match.
2. The thermally-insulated, drag-reducing sliding support of claim 1, wherein: the flat steel annular frame (4) is rectangular, the long edge of the flat steel annular frame (4) is arranged along the axis direction of the working pipeline (8), and the sliding steel plate (2) is arranged above one end of the heat insulation pad (3) along the axis direction of the working pipeline (8).
3. The thermally-insulated, drag-reducing sliding support of claim 1, wherein: the heat insulation pad (3) is a polytetrafluoroethylene plate.
4. The thermally-insulated, drag-reducing sliding support of claim 1, wherein: the middle part of the pipe bracket (1) is provided with an exhaust hole (7).
5. The thermally-insulated, drag-reducing sliding support of claim 1, wherein: the height of the upper surface of the concrete pier (6) is consistent with that of the upper surface of the embedded steel plate (5), the embedded steel plate is provided with a perforated anchor bar, and the perforated anchor bar is embedded in the concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922444443.0U CN211550732U (en) | 2019-12-27 | 2019-12-27 | Heat-insulation anti-drag sliding support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922444443.0U CN211550732U (en) | 2019-12-27 | 2019-12-27 | Heat-insulation anti-drag sliding support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211550732U true CN211550732U (en) | 2020-09-22 |
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ID=72511676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922444443.0U Active CN211550732U (en) | 2019-12-27 | 2019-12-27 | Heat-insulation anti-drag sliding support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211550732U (en) |
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2019
- 2019-12-27 CN CN201922444443.0U patent/CN211550732U/en active Active
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