High temperature insulating low friction support
By combining PTFE components, vacuum blocks, and support ribs, the problem of failure of supports for high-temperature pipelines at high temperatures is solved, achieving low friction and heat insulation effects, reducing temperature and cost, and improving the safety and applicability of the supports.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOPEC GUANGZHOU ENG CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-06-09
AI Technical Summary
Existing low-friction supports for high-temperature pipelines fail in high-temperature environments, posing safety hazards and incurring high costs. Furthermore, commonly used supports suffer from excessively high temperatures due to heat conduction, leading to the failure of PTFE components, and ordinary insulation blocks lack sufficient strength.
The system uses a combination of polytetrafluoroethylene (PTFE) components, vacuum blocks, and supporting stiffeners. The vacuum blocks are reinforced with internal ribs and evacuated. The supporting stiffeners have evenly distributed holes to increase heat dissipation. The clamps are bolted to the pipes to achieve low friction and heat insulation.
It effectively reduces heat transfer, lowers the base plate temperature, and increases the strength of the support frame. It has a simple structure, is easy to install, has low cost, and is widely applicable.
Smart Images
Figure CN224339620U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of petrochemicals and relates to a support for high-temperature pipelines, specifically a high-temperature heat-insulating and low-friction support. Background Technology
[0002] In the petrochemical and nuclear power industries, pipes are typically supported by supports, whose main functions are load-bearing and limiting.
[0003] For some high-temperature pipelines, due to their large thermal expansion, low-friction supports are often required to meet stress requirements. Currently, the most common low-friction supports in the industry are achieved by adding low-friction components to ordinary supports. Commonly used low-friction components consist of two mirror-finished stainless steel plates with a polytetrafluoroethylene (PTFE) pad sandwiched between them to achieve the low-friction function.
[0004] In petrochemical and nuclear power plants, many pipelines are designed for temperatures exceeding 400℃. Due to heat conduction, the bottom temperature of ordinary supports exceeds 200℃, rendering PTFE (polytetrafluoroethylene) assemblies (low-friction components) unusable. Commonly used low-friction supports for high-temperature pipelines often achieve this by adding heat insulation blocks in the middle of the support, which is costly and may lack sufficient strength. Therefore, there is an urgent need to invent a high-temperature insulated low-friction support that is simple in structure, easy to manufacture, has low heat loss, and is highly economical. Summary of the Invention
[0005] In order to solve the problems existing in the prior art, this utility model provides a high-temperature heat-insulating low-friction support to solve the safety hazards such as failure of low-friction supports for high-temperature pipelines in the petrochemical and nuclear power industries after long-term use.
[0006] This utility model provides a high-temperature heat-insulating and low-friction bracket, which includes a polytetrafluoroethylene (PTFE) assembly, a vacuum block, a supporting rib plate, and a clamp arranged sequentially from bottom to top. The PTFE assembly, vacuum block, supporting rib plate, and clamp are all fixedly connected.
[0007] The bottom of the polytetrafluoroethylene assembly is welded to the top of the structural beam.
[0008] The top of the polytetrafluoroethylene (PTFE) assembly is welded to the bottom of the vacuum block, and the PTFE assembly achieves low friction by sandwiching a PTFE pad between two mirror-finished stainless steel plates.
[0009] The vacuum block is made of steel and has internal reinforcing ribs. The number of reinforcing ribs varies depending on the stress on the pipe support. The vacuum block is vacuumed.
[0010] The top of the vacuum block is fixedly connected to two evenly distributed support ribs with holes, and the support ribs are evenly distributed with round holes of φ6 to 10mm.
[0011] The vacuum block is welded to the supporting stiffener, the supporting stiffener is fixedly connected to the clamp, and the clamp is bolted to the supported pipe for easy construction.
[0012] This utility model has the following beneficial effects:
[0013] 1) This utility model uses a vacuum block that draws out a vacuum, and its enclosed space can greatly reduce the transfer of heat to the polytetrafluoroethylene assembly.
[0014] 2) The evenly distributed openings in the support ribs of this utility model can effectively increase the heat dissipation area and keep the bottom surface temperature of the base plate below 110℃.
[0015] 3) The manufacturing structure of this utility model is simple and convenient for installation, maintenance and replacement.
[0016] 4) This utility model also has the advantages of strong practicality, easy implementation, wide applicability, and low equipment investment. Attached image description:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] In the diagram: 1-pipe, 2-clamp, 3-supporting stiffener, 4-PTFE assembly, 5-vacuum block, 6-structural beam. Detailed Implementation
[0019] The present invention will now be further described with reference to the accompanying drawings.
[0020] like Figure 1 As shown, this utility model provides a high-temperature heat-insulating and low-friction bracket, which includes a polytetrafluoroethylene assembly 4, a vacuum block 5, a supporting rib plate 3, and a clamp 2 arranged sequentially from bottom to top. The polytetrafluoroethylene assembly 4, the vacuum block 5, the supporting rib plate 3, and the clamp 2 are fixedly connected.
[0021] The bottom of the polytetrafluoroethylene assembly 4 is welded to the top of the structural beam 6.
[0022] The top of the polytetrafluoroethylene assembly 4 is welded to the bottom of the vacuum block 5, and the polytetrafluoroethylene assembly 4 achieves the low friction function by sandwiching a polytetrafluoroethylene pad between two mirror stainless steel plates.
[0023] The vacuum block 5 is a steel component with internal reinforcing ribs. The number of reinforcing ribs varies depending on the force applied to the pipe support. The vacuum block is evacuated.
[0024] The top of the vacuum block 5 is fixedly connected to two evenly distributed support ribs 3 with holes, and the support ribs 3 are evenly distributed with φ6~10mm round holes.
[0025] The vacuum block 5 is welded to the supporting stiffener 3, the supporting stiffener 3 is fixedly connected to the clamp 2, and the clamp 2 is bolted to the supported pipe for easy construction.
[0026] Example 1: This utility model provides a technical solution: a DN350 high-temperature heat-insulating pipe support, including a vacuum block 5, four reinforcing ribs inside the vacuum block 5, the bottom of the vacuum block 5 is fixedly connected to the top of the polytetrafluoroethylene assembly 4, the bottom of the polytetrafluoroethylene assembly 4 is fixedly connected to the top of the structural beam 6, two evenly distributed perforated support rib plates 3 are fixedly connected to the top of the vacuum block 5, and a clamp 2 is fixedly connected to the upper end of the support rib plate 3, and the clamp 2 is bolted to the pipe 1.
[0027] The vacuum block 5 is made of a steel plate with a size of 250mm x 250mm and a thickness of 10mm. The overall thickness of the vacuum block 5 is 50mm. The vacuum block 5 is supported by four reinforcing ribs. The vacuum block 5 is vacuumed inside. The distance between the bottom surface of the vacuum block 5 and the bottom of the pipe 1 is 200mm.
[0028] Among them, the supporting stiffener 3 is made of steel plate with a thickness of 10mm, the distance between two supporting stiffeners is 150mm, and the supporting stiffener 3 is evenly distributed with φ6mm round holes.
[0029] Among them, clamp 2 matches the outer diameter of the pipe with an arc. Clamp 2 is made of steel plate with a width of 60mm and a thickness of 6mm. The axial spacing of clamp 2 is 120mm.
[0030] During use, the installer places pipe 1 inside clamp 2 and secures the pipe to the pipe support with bolts. The supporting stiffeners 3 have evenly distributed φ6mm round holes, increasing the heat dissipation area and reducing the bottom surface temperature of the vacuum block 5. The vacuum block 5 effectively insulates, reducing heat loss from the pipe, improving the insulation performance of the support, effectively protecting the PTFE assembly, and enhancing the applicability of the pipe support.
[0031] The above description is merely a typical embodiment of this utility model and does not impose any limitations on this utility model. Any changes or modifications made by those skilled in the art using the above content without departing from the scope of the technical solution of this utility model should be considered equivalent examples of equivalent changes. Any equivalent changes made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model shall fall within the scope of the technical solution of this utility model.
Claims
1. A high-temperature heat-insulating, low-friction bracket, characterized in that: The bracket includes a polytetrafluoroethylene (PTFE) assembly, a vacuum block, a supporting rib plate, and a clamp arranged sequentially from bottom to top. The PTFE assembly, vacuum block, supporting rib plate, and clamp are all fixedly connected to each other.
2. The high-temperature heat-insulating and low-friction bracket according to claim 1, characterized in that: The bottom of the polytetrafluoroethylene assembly is welded to the top of the structural beam.
3. The high-temperature heat-insulating and low-friction bracket according to claim 1, characterized in that: The top of the polytetrafluoroethylene (PTFE) assembly is welded to the bottom of the vacuum block, and the PTFE assembly achieves low friction by sandwiching a PTFE pad between two mirror-finished stainless steel plates.
4. The high-temperature heat-insulating and low-friction bracket according to claim 3 or 1, characterized in that: The vacuum block is made of steel and has internal reinforcing ribs. The number of reinforcing ribs varies depending on the stress on the pipe support. The vacuum block is vacuumed.
5. The high-temperature heat-insulating and low-friction bracket according to claim 4, characterized in that: The top of the vacuum block is fixedly connected to two evenly distributed support ribs with holes, and the support ribs are evenly distributed with round holes of φ6~10mm.
6. The high-temperature heat-insulating and low-friction bracket according to claim 5 or 1, characterized in that: The vacuum block is welded to the supporting stiffener, the supporting stiffener is fixedly connected to the clamp, and the clamp is bolted to the supported pipe.