CN212131588U - High-temperature-resistant stainless steel corrugated pipe - Google Patents
High-temperature-resistant stainless steel corrugated pipe Download PDFInfo
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- CN212131588U CN212131588U CN202020839520.2U CN202020839520U CN212131588U CN 212131588 U CN212131588 U CN 212131588U CN 202020839520 U CN202020839520 U CN 202020839520U CN 212131588 U CN212131588 U CN 212131588U
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Abstract
The utility model relates to a high temperature resistant stainless steel corrugated pipe, which comprises a corrugated pipe body; the end part of the corrugated pipe body is provided with a joint; the joint is provided with a cylinder body; two ends of the cylinder are respectively connected with the corrugated pipe, and two ends of the cylinder are provided with a pressing mechanism; the cylinder comprises an external heat insulation shell and an internal bearing shell; a heat insulation cavity is arranged between the external heat insulation shell and the internal bearing shell; a heat insulation layer is arranged in the heat insulation cavity; the surface of the external heat insulation shell is provided with a flame retardant layer; an anti-corrosion layer is arranged on the inner side of the inner bearing shell; the external heat insulation shell is provided with heat conduction convex ribs. The utility model discloses a unique design's barrel has strengthened the high temperature resistance ability of bellows junction, and when the bellows was in under the high temperature environment, outside heat was difficult to transmit to the connector in for the inflammable gas (liquid) body of bellows is in safe temperature range.
Description
Technical Field
The utility model relates to a bellows, concretely relates to high temperature resistant stainless steel bellows belongs to bellows technical field.
Background
The corrugated pipe is a tubular elastic sensitive element which is formed by connecting foldable corrugated sheets along the folding and stretching direction. The corrugated pipe has wide application in instruments and meters, and is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The corrugated pipe is various in types and mainly comprises a metal corrugated pipe, a corrugated expansion joint, a corrugated heat exchange pipe, a diaphragm capsule, a metal hose and the like. The metal corrugated pipe is mainly applied to the effects of compensating the thermal deformation of a pipeline, damping, absorbing the settlement deformation of the pipeline and the like, and is widely applied to the industries of petrifaction, instruments, aerospace, chemical industry, electric power, cement, metallurgy and the like. The stainless steel corrugated pipe is installed in a liquid conveying system as a flexible pressure-resistant pipe fitting, is used for compensating mutual displacement of pipe materials or machine and equipment connecting ends, absorbs vibration energy, can play roles in vibration reduction, noise reduction and the like, and has the characteristics of good flexibility, light weight, corrosion resistance, fatigue resistance, high and low temperature resistance and the like. The corrugated pipe made of other materials such as plastics has irreplaceable effects in the fields of medium conveying, electric power threading, machine tools, household appliances and the like. The most fragile part of junction of bellows, when the bellows outside is in high temperature environment, if connector department does not possess good thermal-insulated effect, appears damaged even, very easily makes the burning of the intraductal combustible gas (liquid) of bellows, has great potential safety hazard. Therefore, further improvements are necessary.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the defect among the prior art, providing a high temperature resistant corrugated stainless steel pipe, the heat-proof quality is good, and the structure is firm, and the security is high, and simple structure is reasonable.
The high-temperature resistant stainless steel corrugated pipe designed for achieving the purpose comprises a corrugated pipe body; the end part of the corrugated pipe body is provided with a joint; the joint is provided with a cylinder body; two ends of the cylinder are respectively connected with the corrugated pipe, and two ends of the cylinder are provided with a pressing mechanism; the cylinder comprises an external heat insulation shell and an internal bearing shell; a heat insulation cavity is arranged between the external heat insulation shell and the internal bearing shell; a heat insulation layer is arranged in the heat insulation cavity; the surface of the external heat insulation shell is provided with a flame retardant layer; an anti-corrosion layer is arranged on the inner side of the inner bearing shell; the external heat insulation shell is provided with heat conduction convex ribs.
Preferably, the pressing mechanism comprises a sealing washer, a pressing washer, a clamping ring and a pressing nut; the heat conduction convex ribs are distributed on the inner side and the outer side of the external heat insulation shell.
Preferably, the sealing washer is embedded at the port of the cylinder body; the sealing washer and the pressing washer are mutually abutted; a wedge-shaped surface is arranged on one side of the clamping ring, which is in contact with the compression nut; the other side of the clamping ring is abutted against the pressing gasket.
Preferably, the flame-retardant layer is made of a carbon fiber material; the flame-retardant layer is connected with the outer heat insulation shell through an adhesive; the heat conduction convex ribs are distributed on the outer side and the inner side of the external heat insulation shell in an annular staggered mode.
Preferably, the heat insulation layer is made of epoxy resin foam or hollow glass bead composite material.
Preferably, the anti-corrosion layer is an anti-corrosion coating; the inner bearing shell is made of a metal framework and a metal armor layer.
The utility model discloses a unique design's barrel has strengthened the high temperature resistance ability of bellows junction, and when the bellows was in under the high temperature environment, outside heat was difficult to transmit to the connector in for the inflammable gas (liquid) body of bellows is in safe temperature range.
Drawings
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a schematic cross-sectional view of another aspect of the present invention.
In the figure, 1 is a joint, 2 is a cylinder, 2.1 is an external heat insulation shell, 2.2 is an internal bearing shell, 2.3 is a heat insulation cavity, 2.4 is a heat insulation layer, 2.5 is a flame retardant layer, 2.6 is an anti-corrosion layer, 3 is a hot convex rib, 4 is a sealing washer, 5 is a compression washer, 6 is a clamping ring, 6.1 is a wedge-shaped surface, and 7 is a compression nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Terms used herein, including technical and scientific terms, have the same meaning as terms commonly understood by one of ordinary skill in the art, unless otherwise defined. It will be understood that terms defined in commonly used dictionaries have meanings that are consistent with their meanings in the prior art.
Referring to fig. 1-2, a high temperature resistant stainless steel corrugated pipe includes a corrugated pipe body; the end part of the corrugated pipe body is provided with a joint 1; the joint is provided with a cylinder body 2; two ends of the cylinder body 2 are respectively connected with the corrugated pipe, and two ends of the cylinder body 2 are provided with a pressing mechanism; the cylinder body 2 comprises an outer heat insulation shell 2.1 and an inner bearing shell 2.2; a heat insulation cavity 2.3 is arranged between the external heat insulation shell and the internal bearing shell; a heat insulation layer 2.4 is arranged in the heat insulation cavity; the surface of the external heat insulation shell is provided with a flame retardant layer 2.5; the inner side of the inner bearing shell is provided with an anti-corrosion layer 2.6; the external heat insulation shell is provided with heat conduction convex ribs 3.
Furthermore, the pressing mechanism comprises a sealing washer 4, a pressing washer 5, a clamping ring 6 and a pressing nut 7; the heat conduction convex ribs 3 are distributed on the inner side and the outer side of the external heat insulation shell.
In this embodiment, the compression nut 7 is rotated downwardly, which causes the sealing gasket to move downwardly, compressing the bellows. Simultaneously, tightening the nut pushes the collar 6 through the wedge surface, causing the collar 6 and the compression washer 5 to move downward, further compressing the bellows.
Furthermore, the sealing washer is embedded at the port of the cylinder body; the sealing washer and the pressing washer are mutually abutted; a wedge-shaped surface 6.1 is arranged on one side of the clamping ring 6, which is in contact with the compression nut; the other side of the clamping ring is abutted against the pressing gasket.
In this embodiment, the sealing is finally achieved by rotating the compression nut externally so that the compression nut gradually compresses the collar downwards, while the collar moves in the horizontal direction, snapping into the compression washer 5 and the sealing washer 4.
Furthermore, the flame-retardant layer 2.5 is made of carbon fiber material; the flame-retardant layer 2.5 is connected with the outer heat insulation shell 2.1 through an adhesive; the heat-conducting convex ribs 3 are distributed on the outer side and the inner side of the external heat-insulating shell in an annular staggered mode.
In this embodiment, a carbon fiber material having excellent heat resistance and capable of withstanding high temperatures of 2000 ℃ or more is preferably used. The carbon fiber has many excellent properties, high axial strength and modulus, low density, high specific performance, no creep deformation, super high temperature resistance in non-oxidation environment, good fatigue resistance, specific heat and conductivity between nonmetal and metal, small thermal expansion coefficient, anisotropy, good corrosion resistance and good X-ray permeability. Good electric and heat conducting performance, good electromagnetic shielding performance and the like. Therefore, by utilizing the good thermal conductivity, the high-efficiency heat conduction is realized for the high heat outside the joint, and the heat accumulation is avoided.
Further, the heat insulation layer 2.4 is made of epoxy resin foam or hollow glass bead composite material.
In the embodiment, since the flame retardant layer 2.5 has excellent thermal conductivity, in order to ensure that the interior of the joint does not heat up due to external heat, an epoxy resin foam or hollow glass bead composite material is used as the heat insulation layer 2.4 to insulate the heat absorbed by the flame retardant layer.
Furthermore, the anti-corrosion layer 2.6 is an anti-corrosion coating; the inner bearing shell is made of a metal framework and a metal armor layer.
Finally, it is noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (6)
1. A high-temperature resistant stainless steel corrugated pipe comprises a corrugated pipe body; the end part of the corrugated pipe body is provided with a joint (1); the joint is provided with a cylinder body (2); barrel (2) both ends link to each other with the bellows respectively, its characterized in that: two ends of the cylinder (2) are provided with a pressing mechanism; the cylinder body (2) comprises an external heat insulation shell (2.1) and an internal bearing shell (2.2); a heat insulation cavity (2.3) is arranged between the external heat insulation shell and the internal bearing shell; a heat insulation layer (2.4) is arranged in the heat insulation cavity; the surface of the external heat insulation shell is provided with a flame retardant layer (2.5); the inner side of the inner bearing shell is provided with an anti-corrosion layer (2.6); the external heat insulation shell is provided with heat conduction convex ribs (3).
2. The high temperature resistant stainless steel bellows of claim 1, wherein: the pressing mechanism comprises a sealing washer (4), a pressing washer (5), a clamping ring (6) and a pressing nut (7); the heat conduction convex ribs (3) are distributed on the inner side and the outer side of the external heat insulation shell.
3. The high temperature resistant stainless steel bellows of claim 2, wherein: the sealing washer is embedded at the port of the cylinder body; the sealing washer and the pressing washer are mutually abutted; a wedge-shaped surface (6.1) is arranged on one side of the clamping ring (6) which is in contact with the compression nut; the other side of the clamping ring is abutted against the pressing gasket.
4. The high temperature resistant stainless steel bellows of claim 1, wherein: the flame-retardant layer (2.5) is made of carbon fiber material; the flame-retardant layer (2.5) is connected with the outer heat insulation shell (2.1) through an adhesive; the heat conduction convex ribs (3) are distributed on the outer side and the inner side of the external heat insulation shell in an annular staggered mode.
5. The high temperature resistant stainless steel bellows of claim 1, wherein: the heat insulation layer (2.4) is made of epoxy resin foam or hollow glass bead composite material.
6. The high temperature resistant stainless steel bellows of claim 1, wherein: the anti-corrosion layer (2.6) is anti-corrosion paint; the inner bearing shell is made of a metal framework and a metal armor layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020839520.2U CN212131588U (en) | 2020-05-19 | 2020-05-19 | High-temperature-resistant stainless steel corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020839520.2U CN212131588U (en) | 2020-05-19 | 2020-05-19 | High-temperature-resistant stainless steel corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131588U true CN212131588U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020839520.2U Active CN212131588U (en) | 2020-05-19 | 2020-05-19 | High-temperature-resistant stainless steel corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212131588U (en) |
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2020
- 2020-05-19 CN CN202020839520.2U patent/CN212131588U/en active Active
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