CN215173059U - Anti-corrosion high-temperature-resistant underground composite heat-insulation pipeline with variable diameter - Google Patents
Anti-corrosion high-temperature-resistant underground composite heat-insulation pipeline with variable diameter Download PDFInfo
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- CN215173059U CN215173059U CN202121458101.5U CN202121458101U CN215173059U CN 215173059 U CN215173059 U CN 215173059U CN 202121458101 U CN202121458101 U CN 202121458101U CN 215173059 U CN215173059 U CN 215173059U
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Abstract
The utility model discloses a compound incubation pipeline is buried with anticorrosive high temperature resistance of reducing formula, including the pipeline main part, the interior terminal surface of pipeline main part is provided with the inner structure layer, the outer terminal surface of pipeline main part is provided with the outer structure layer, fill by the heat preservation in the middle of outer structure layer and the inner structure layer, the interior terminal surface spraying of inner structure layer has high temperature resistant coating, the outer terminal surface spraying of outer structure layer has anticorrosive coating, be provided with the reducing knot in the pipeline main part, the both ends of reducing knot are welded with the pipeline main part of different diameters, the structure layering of reducing knot is the same with the structure layering of pipeline main part, be provided with the strengthening rib in the heat preservation of reducing knot. The utility model discloses a high temperature resistant coating of interior terminal surface spraying of inner structure layer, the anticorrosive coating of outer terminal surface spraying of outer structure layer has strengthened the corrosion resisting property of pipeline main part greatly, through set up the strengthening rib in the reducing knot, has strengthened the compressive capacity of reducing knot greatly to pipeline main part's life has been promoted greatly.
Description
Technical Field
The utility model belongs to the technical field of the insulating tube, specifically be a compound insulating tube is buried to anticorrosive high temperature resistant ground of reducing formula.
Background
The reducer pipe is a pipeline formed by serially connecting pipe sections with different diameters in sequence. The pressure loss is equal to the sum of the pressure losses of the pipe sections. It is often used where there are multiple branch pipes along the way. The inlet ends of a plurality of single pipelines or pipelines connected in series are collected, and the outlet ends are also connected to form a pipe network. The pressure loss of the fluid in each branch is equal and the flow at the pipe connection point is equal to the sum of the flows of the branches. It is often used in situations with large volume of transportation or multiple expansions.
The utility model discloses an adopt flange joint's heat preservation reducing pipe in grant notice No. CN210344618U, including reducing pipe outer tube, flange joint structure, first ring flange, second ring flange, fixed ear, ring flange fixing bolt, inner tube fixed disk, reducing pipe insulation construction, heat preservation filling layer and reducing inner tube.
Above-mentioned a adopt flange joint's heat preservation reducing pipe, this insulating tube's anticorrosive ability is relatively poor, leads to losing the heat preservation ability after the pipeline is corroded, and this pipeline structural strength is lower, and compressive capacity is not enough.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compound incubation pipeline is buried to anticorrosive high temperature resistant of reducing to solve among the prior art the anticorrosive relatively poor, the not enough problem of pipeline compressive capacity of insulating tube.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compound incubation pipeline is buried to anticorrosive high temperature resistant of reducing formula, includes pipeline main body, pipeline main body's interior terminal surface is provided with inner structure layer, pipeline main body's outer terminal surface is provided with outer structure layer, fill by the heat preservation in the middle of outer structure layer and the inner structure layer, inner structure layer's interior terminal surface spraying has high temperature resistant coating, outer terminal surface spraying of outer structure layer has anticorrosive coating, be provided with the reducing knot in the pipeline main body, the both ends and the different diameters of reducing knot pipeline main body welding.
Preferably, the inner structure layer and the outer structure layer are made of 202 stainless steel materials, the thickness of the inner structure layer is 5-10 mm, and the thickness of the outer structure layer is 3-6 mm.
Preferably, the high-temperature-resistant coating is a silicon carbide coating which has good high-temperature resistance and scratch resistance, and can effectively protect the inner end face of the inner structure layer and prevent the inner structure layer from being corroded layer by layer.
Preferably, the anticorrosion coating is made of phenolic epoxy paint, and the phenolic epoxy paint has the excellent characteristics of high temperature resistance, wear resistance and corrosion resistance, so that the service life of the pipeline main body is greatly prolonged.
Preferably, the structural stratification of reducing knot is the same with the structural stratification of pipeline main part, be provided with the strengthening rib in the heat preservation of reducing knot, the strengthening rib is the corrosion resistant plate of rectangle form, the up end and the outer structure layer welding of strengthening rib, the lower terminal surface and the inner structure layer welding of strengthening rib, the quantity of strengthening rib is six, the strengthening rib is about the axis symmetry of reducing knot, and the both ends pipeline diameter variation of reducing knot leads to fluid to increase to pipe wall pressure when the reducing knot, through adding the strengthening rib in the heat preservation, strengthens the structural strength of pipeline main part.
Preferably, the heat-insulating layer is made of polyurethane foam, and the polyurethane foam has good heat-insulating capacity and good high-temperature resistant effect.
Preferably, the side end face of the reinforcing rib is provided with a filling hole, the filling hole is a plurality of circular holes, and the filling hole is convenient for the heat preservation layer to penetrate through, so that the reducing knot can maintain the heat preservation capability.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a high temperature resistant coating of interior terminal surface spraying of inner structure layer, the anticorrosive coating of outer terminal surface spraying of outer structure layer has strengthened the corrosion resisting property of pipeline main part greatly, through set up the strengthening rib in the reducing knot, has strengthened the compressive capacity of reducing knot greatly to pipeline main part's life has been promoted greatly.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 1, a pipeline main body 1, an inner structural layer 11, an outer structural layer 12, a heat insulation layer 13, a high-temperature resistant coating 14, an anticorrosive coating 15, a reducing knot 16, a reinforcing rib 161 and a filling hole 162.
Detailed Description
Referring to fig. 1, a reducing type corrosion-resistant and high temperature-resistant buried composite heat-insulating pipeline comprises a pipeline main body 1, an inner structural layer 11 is arranged on an inner end surface of the pipeline main body 1, an outer structural layer 12 is arranged on an outer end surface of the pipeline main body 1, a heat-insulating layer 13 is filled between the outer structural layer 12 and the inner structural layer 11, a high temperature-resistant coating 14 is sprayed on the inner end surface of the inner structural layer 11, a corrosion-resistant coating 15 is sprayed on an outer end surface of the outer structural layer 12, a reducing joint 16 is welded on the pipeline main body 1, and two ends of the reducing joint 16 are welded with pipeline main bodies 1 with different diameters.
Referring to fig. 1, the inner structure layer 11 and the outer structure layer 12 are made of 202 stainless steel, the thickness of the inner structure layer 11 is 5-10 mm, the thickness of the outer structure layer 12 is 3-6 mm, the high temperature resistant coating 14 is a silicon carbide coating, the silicon carbide coating has good high temperature resistance and scratch resistance, the inner end face of the inner structure layer 11 can be effectively protected, the inner structure layer 11 is prevented from being corroded, the anti-corrosion coating 15 is made of a novolac epoxy coating, the novolac epoxy coating has good characteristics of high temperature resistance, wear resistance and corrosion resistance, and the service life of the pipeline main body 1 is greatly prolonged.
Referring to fig. 1 and 2, the structural layering of the reducer union 16 is the same as the structural layering of the pipeline main body 1, the heat insulation layer 13 of the reducer union 16 is internally welded with the reinforcing ribs 161, the reinforcing ribs 161 are rectangular stainless steel plates, the upper end surfaces of the reinforcing ribs 161 are welded with the outer structural layer 12, the lower end surfaces of the reinforcing ribs 161 are welded with the inner structural layer 11, the number of the reinforcing ribs 161 is six, the reinforcing ribs 161 are symmetrical about the axis of the reducer union 16, the diameters of pipelines at two ends of the reducer union 16 are different, so that the pressure of fluid on the pipe wall is increased when the fluid passes through the reducer union 16, and the structural strength of the pipeline main body 1 is enhanced by adding the reinforcing ribs 161 in the heat insulation layer 13.
Referring to fig. 1 and 2, the side end surface of the reinforcing rib 161 is provided with a filling hole 162, the filling hole 162 is a plurality of circular holes, the filling hole 162 facilitates the penetration of the heat insulation layer 13, so that the reducing knot 16 maintains the heat insulation capability, the heat insulation layer 13 is made of polyurethane foam, and the polyurethane foam has good heat insulation capability and good high temperature resistance effect.
The working principle of the scheme is as follows: the utility model discloses an at inner end face spraying high temperature resistant coating 14 of inner structure layer 11, at outer end face spraying anticorrosive coating 15 of outer structure layer 12, strengthened pipeline main part 1's corrosion resisting property greatly, through welding strengthening rib 161 in reducing knot 16, strengthened reducing knot 16's compressive capacity greatly to pipeline main part 1's life has been promoted greatly.
Claims (7)
1. The utility model provides a compound incubation pipeline is buried to anticorrosive high temperature resistant of reducing formula, includes pipeline main part (1), its characterized in that: the inner end face of pipeline main part (1) is provided with inner structure layer (11), the outer end face of pipeline main part (1) is provided with outer structure layer (12), fill by heat preservation (13) in the middle of outer structure layer (12) and inner structure layer (11), the inner end face spraying of inner structure layer (11) has high temperature resistant coating (14), the outer end face spraying of outer structure layer (12) has anticorrosive coating (15), be provided with reducing knot (16) on pipeline main part (1), the both ends and the different diameters of reducing knot (16) pipeline main part (1) welding.
2. The variable-diameter corrosion-resistant high-temperature-resistant buried composite heat-insulating pipeline as claimed in claim 1, characterized in that: the inner structural layer (11) and the outer structural layer (12) are made of 202 stainless steel materials, the thickness of the inner structural layer (11) is 5-10 mm, and the thickness of the outer structural layer (12) is 3-6 mm.
3. The variable-diameter corrosion-resistant high-temperature-resistant buried composite heat-insulating pipeline as claimed in claim 1, characterized in that: the high-temperature resistant coating (14) is a silicon carbide coating.
4. The variable-diameter corrosion-resistant high-temperature-resistant buried composite heat-insulating pipeline as claimed in claim 1, characterized in that: the anticorrosive coating (15) is made of phenolic epoxy paint.
5. The variable-diameter corrosion-resistant high-temperature-resistant buried composite heat-insulating pipeline as claimed in claim 1, characterized in that: the structure layering of reducing knot (16) is the same with the structure layering of pipeline main part (1), be provided with strengthening rib (161) in heat preservation (13) of reducing knot (16), strengthening rib (161) are the corrosion resistant plate of rectangle form, the up end and the outer structure layer (12) welding of strengthening rib (161), the lower terminal surface and the inner structure layer (11) welding of strengthening rib (161), the quantity of strengthening rib (161) is six, strengthening rib (161) is about the axis symmetry of reducing knot (16).
6. The variable-diameter corrosion-resistant high-temperature-resistant buried composite heat-insulating pipeline as claimed in claim 1, characterized in that: the heat-insulating layer (13) is made of polyurethane foam.
7. The variable-diameter corrosion-resistant high-temperature-resistant buried composite heat-insulating pipeline as claimed in claim 5, characterized in that: the side end face of the reinforcing rib (161) is provided with a filling hole (162), and the filling hole (162) is a plurality of circular holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121458101.5U CN215173059U (en) | 2021-06-29 | 2021-06-29 | Anti-corrosion high-temperature-resistant underground composite heat-insulation pipeline with variable diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121458101.5U CN215173059U (en) | 2021-06-29 | 2021-06-29 | Anti-corrosion high-temperature-resistant underground composite heat-insulation pipeline with variable diameter |
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| CN215173059U true CN215173059U (en) | 2021-12-14 |
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| CN202121458101.5U Active CN215173059U (en) | 2021-06-29 | 2021-06-29 | Anti-corrosion high-temperature-resistant underground composite heat-insulation pipeline with variable diameter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370555A (en) * | 2022-01-25 | 2022-04-19 | 青岛罗宝节能科技有限公司 | Method for integrally repairing corrosion-resistant, heat-insulating and waterproof opening of heat-insulating pipeline |
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2021
- 2021-06-29 CN CN202121458101.5U patent/CN215173059U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370555A (en) * | 2022-01-25 | 2022-04-19 | 青岛罗宝节能科技有限公司 | Method for integrally repairing corrosion-resistant, heat-insulating and waterproof opening of heat-insulating pipeline |
| CN114370555B (en) * | 2022-01-25 | 2024-01-12 | 青岛罗宝节能科技有限公司 | Method for corrosion-proof heat-insulating waterproof integrated joint coating of heat-insulating pipeline |
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