Fireproof, corrosion-resistant and heat-insulating composite pipeline

Abstract

The utility model relates to the technical field of composite pipelines, in particular to a fireproof corrosion-resistant heat preservation composite pipeline. The fireproof corrosion-resistant heat preservation composite pipeline comprises a plurality of pipeline units which are arranged in the length direction of the pipeline units and can be spliced. Each pipeline unit is provided with a heat preservation layer, a pipeline body, a fireproof layer and a corrosion-resistant layer from inside to outside. The fireproof corrosion-resistant thermal insulation composite pipeline is ingenious in structural design, has excellent thermal insulation, fireproof and corrosion-resistant performance, adopts pipeline connection design of an ingenious structure, is simple and convenient to disassemble and assemble, facilitates pipeline replacement of a maintenance box, can be suitable for long-line material conveying, and is stable in connection and extremely good in leakproofness.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite pipeline technical field, specifically, relate to a fire -resistant corrosion -resistant heat preservation composite pipeline. BACKGROUND

[0002] In recent years, with the diversification of energy, energy transportation industry is also developing. Especially the requirement of transportation pipeline is also higher and higher. Single function transportation pipeline can not meet the transportation of most energy.

[0003] Especially in petrochemical industry, pipeline may have a variety of problems in the use process, including but not limited to: (1) leakage: pipeline may leak due to material aging, connection problem or improper installation, resulting in fluid loss, and even may cause safety accidents; (2) fire: because oil is flammable liquid, static electricity accumulation may occur during transportation, resulting in fire; (3) corrosion: most pipelines are laid on the ground, and are easily affected by underground pollutants for a long time, which may cause corrosion, and may cause pipeline rupture or perforation in serious cases; (4) blockage: for liquefied petroleum gas and other substances that may condense at low temperature, heat preservation can prevent pipeline blockage and ensure safe transportation; (5) maintenance problem: oil is flammable and explosive, and any small gap in the pipeline transportation process may cause serious safety accidents. Therefore, regular maintenance can timely find and repair potential safety hazards such as pipeline corrosion and leakage, and prevent accidents; (6) long distance transportation: oil transportation distance is usually very long, in order to achieve the required total length, the pipeline needs to be segmented and spliced on site. SUMMARY

[0004] The utility model discloses a fire -resistant corrosion -resistant heat preservation composite pipeline, the fire -resistant corrosion -resistant heat preservation composite pipeline structure design is ingenious, not only has excellent heat preservation, fire -resistant and corrosion -resistant performance, and adopts the pipeline connection design of ingenious structure, and the dismounting is simple and convenient, and the maintenance box is replaced with pipeline, can be applicable to long route material conveying, and the connection is stable and the airtightness is very good.

[0005] In order to achieve the above purpose, the preferred solution adopted by the utility model is:

[0006] A fire -resistant corrosion -resistant heat preservation composite pipeline, comprising a plurality of splicable pipeline units arranged along the length direction of itself, wherein the pipeline unit is provided with a heat preservation layer, a pipeline body, a fireproof layer and a corrosion -resistant layer from inside to outside.

[0007] Further, in the preferred embodiment of the utility model, still include a plurality of for connecting two adjacent pipeline unit's pipeline joint, pipeline joint includes support section, and the opposite two sides of support section for with the connecting assembly that pipeline unit is connected is symmetrically set, connecting assembly includes the clamping leg that can with pipeline unit can detachable connection, support section has the through hole, through hole can with the inside of pipeline unit is communicated.

[0008] Further, in the preferred embodiment of the utility model, the clamping leg includes the first clamping piece and the second clamping piece respectively connected with support section, and the clamping space for clamping the pipeline wall of pipeline unit is formed between the first clamping piece and the second clamping piece.

[0009] Further, in the preferred embodiment of the utility model, the axial direction of pipeline unit is set as preset direction, the first clamping piece and the second clamping piece are circular along the section perpendicular to preset direction, and the inner diameter of the first clamping piece is greater than the inner diameter of the second clamping piece.

[0010] Further, in the preferred embodiment of the utility model, the connecting assembly further includes a limiting piece, the limiting piece includes a plurality of elastic components, the elastic component includes elastic member and limiting block connected with each other, the end of elastic member away from limiting block is connected with the side of the first clamping piece towards the second clamping piece, a plurality of elastic components are spaced apart on the first clamping piece along the circumference of the first clamping piece, when the pipeline joint is connected with the pipeline unit, the elastic member is in compression state, and the limiting block forms abutment with the pipeline wall.

[0011] Further, in the preferred embodiment of the utility model, the side of the limiting block away from the elastic member is set as abutment surface, and the abutment surface is arc surface.

[0012] Further, in the preferred embodiment of the utility model, the connecting assembly further includes a first sealing rubber strip, a second sealing rubber strip and a third sealing rubber strip, the first sealing rubber strip is arranged on the side of the second clamping piece towards the first clamping piece, the second sealing rubber strip is arranged on the support section and located between the port surface of the pipeline unit and the support section, and the third sealing rubber strip is arranged on the side of the first clamping section towards the second clamping section and located between the elastic component and the support section.

[0013] Further, in the preferred embodiment of the utility model, the support section is circular along the section perpendicular to preset direction.

[0014] The petroleum chemical industry heat preservation corrosion-resistant composite pipeline has the beneficial effects that:

[0015] The fireproof corrosion-resistant heat-insulating composite pipeline provided by the utility model is provided with a plurality of splicable pipeline units arranged along the length direction of the pipeline units, and the pipeline units are provided with a heat-insulating layer, a pipeline body, a fireproof layer and a corrosion-resistant layer from inside to outside.

[0016] (1) excellent fireproof, corrosion-resistant and heat-insulating properties;

[0017] (2) the splicable pipeline units are adopted, no additional connecting flanges are needed, the installation and dismounting operation is simple and convenient, long route transportation can be realized, and the pipeline units are convenient to overhaul and replace;

[0018] (3) stable connection, multi-stage sealing at the interface, and excellent sealing performance. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and other related drawings can be obtained by the drawings without creative labor for those skilled in the art.

[0020] Figure 1 Part structure schematic diagram of the fireproof corrosion-resistant heat-insulating composite pipeline provided by the embodiments of the utility model;

[0021] Figure 2 Part structure schematic diagram of the fireproof corrosion-resistant heat-insulating composite pipeline provided by the embodiments of the utility model;

[0022] Figure 3 Part structure schematic diagram of the fireproof corrosion-resistant heat-insulating composite pipeline provided by the embodiments of the utility model;

[0023] Figure 4 Part structure schematic diagram of the fireproof corrosion-resistant heat-insulating composite pipeline provided by the embodiments of the utility model;

[0024] Figure: 10-fireproof corrosion-resistant heat-insulating composite pipeline, 100-pipeline unit, 200-pipeline joint, 110-heat-insulating layer, 120-pipeline body, 130-fireproof layer, 140-corrosion-resistant layer, 210-supporting section, 220-connecting assembly, 221-clamping leg, 211-communication hole, 222-first clamping piece, 223-second clamping piece, 224-clamping space, 225-elastic assembly, 2251-elastic piece, 2252-limiting block, 2241-abutting surface, 226-first sealing rubber strip, 227-second sealing rubber strip, 228-third sealing rubber strip. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0027] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] Embodiment 1

[0029] The following will be described in combination with the drawings Figures 1-4 Further description of the utility model:

[0030] The utility model provides a kind of fireproof corrosion-resistant thermal insulation composite pipeline 10, please refer to Figures 1-4 The fireproof corrosion-resistant thermal insulation composite pipeline 10 includes multiple splicable pipeline units 100 arranged along the length direction of itself, and multiple pipeline joints 200 for connecting adjacent two pipeline units 100.

[0031] In the embodiment, pipeline unit 100 is provided with thermal insulation layer 110, pipeline body 120, fireproof layer 130 and corrosion-resistant layer 140 from inside to outside.

[0032] In the embodiment, pipeline joint 200 includes support section 210, and the connecting assembly 220 for being connected with pipeline unit 100 is symmetrically arranged on the opposite sides of support section 210.

[0033] Wherein, support section 210 has communication hole 211, and communication hole 211 can be communicated with the inside of pipeline unit 100. Specifically, support section 210 is circular annular along the section perpendicular to the preset direction.

[0034] Connecting assembly 220 includes clamping leg 221 that can be detachably connected with pipeline unit 100, limiting piece (not marked in the drawing), first sealing rubber strip 226, second sealing rubber strip 227 and third sealing rubber strip 228.

[0035] Specifically, the clamping leg 221 includes a first clamping piece 222 and a second clamping piece 223 respectively connected to the support section 210. A clamping space 224 for clamping the pipe wall of the pipe unit 100 is formed between the first clamping piece 222 and the second clamping piece 223. The axis of the pipe unit 100 is set to a preset direction; the first clamping piece 222 and the second clamping piece 223 are annular in cross-section perpendicular to the preset direction; the inner diameter of the first clamping piece 222 is larger than the inner diameter of the second clamping piece 223.

[0036] The limiting component includes multiple sets of elastic components 225. Each elastic component 225 includes an elastic element 2251 and a limiting block 2252 connected to each other. One end of the elastic element 2251 away from the limiting block 2252 is connected to the side of the first clamping piece 222 facing the second clamping piece 223. Multiple sets of elastic components 225 are spaced apart along the circumference of the first clamping piece 222. When the pipe connector 200 is connected to the pipe unit 100, the elastic element 2251 is compressed, and the limiting block 2252 abuts against the pipe wall. In this embodiment, the side of the limiting block 2252 away from the elastic element 2251 is designated as an abutment surface 2241, which is an arc surface to facilitate the advancement of the pipe wall.

[0037] In this embodiment, the first sealing strip 226 is disposed on the side of the second clamping piece 223 facing the first clamping piece 222, the second sealing strip 227 is disposed on the support section 210 and located between the port surface of the pipe unit 100 and the support section 210, and the third sealing strip 228 is disposed on the side of the first clamping section facing the second clamping section and located between the elastic component 225 and the support section 210.

[0038] The fireproof, corrosion-resistant, and heat-insulating composite pipe 10 provided in this embodiment works as follows: the pipe wall of the pipe unit 100 is pushed into the clamping space 224. At this time, the pipe wall compresses the limiting block 2252, causing the elastic element 2251 to be compressed until the pipe wall abuts against the second sealing strip 227. At this time, multiple elastic components 225 together form a stable limiting effect on the pipe wall, and the pipe wall is connected to the pipe joint 200.

[0039] In summary, the fireproof, corrosion-resistant, and heat-insulating composite pipe 10 provided in this embodiment has an ingenious structural design. It not only has excellent heat insulation, fireproof, and corrosion resistance, but also adopts a cleverly designed pipe connection structure, which makes disassembly and assembly simple and convenient, facilitating maintenance and pipe replacement. It is suitable for long-distance material transportation, with a stable connection and excellent airtightness.

[0040] The above merely is preferred embodiment of the present utility model, and is not for limiting the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A fire resistant corrosion resistant insulating composite pipe, characterized in that, The pipeline unit comprises a plurality of splicable pipeline units arranged along the length direction of the pipeline unit; the pipeline unit is provided with, from the inside to the outside, a heat preservation layer, a pipeline body, a fireproof layer and a corrosion-resistant layer.

2. The fire resistant corrosion resistant insulated composite pipe of claim 1, wherein, The pipeline joint comprises a support section and a connecting assembly arranged symmetrically on opposite sides of the support section and used for connecting the pipeline unit; the connecting assembly comprises a clamping leg which is detachably connected with the pipeline unit; the support section has a communication hole which is in communication with the inside of the pipeline unit.

3. The fire resistant corrosion resistant insulated composite pipe of claim 2, wherein, The clamping leg comprises a first clamping piece and a second clamping piece which are connected with the support section respectively; the first clamping piece and the second clamping piece form a clamping space for clamping the pipeline wall of the pipeline unit.

4. The fire resistant corrosion resistant insulated composite pipe of claim 3, wherein, The axial line direction of the pipeline unit is arranged as a preset direction; the first clamping piece and the second clamping piece are in the shape of a circular ring in the cross section perpendicular to the preset direction; the inner diameter of the first clamping piece is larger than the inner diameter of the second clamping piece.

5. The fire resistant corrosion resistant insulated composite pipe of claim 4, wherein, The connecting assembly further comprises a limiting piece; the limiting piece comprises a plurality of elastic assemblies; the elastic assembly comprises an elastic piece and a limiting block which are connected with each other; the end of the elastic piece away from the limiting block is connected with the side of the first clamping piece facing the second clamping piece; a plurality of elastic assemblies are arranged on the first clamping piece in the circumferential direction of the first clamping piece; when the pipeline joint is connected with the pipeline unit, the elastic piece is in a compressed state, and the limiting block is in abutment with the pipeline wall.

6. The fire resistant corrosion resistant insulated composite pipe of claim 5, wherein, The side of the limiting block away from the elastic piece is arranged as an abutment surface; the abutment surface is an arc surface.

7. The fire resistant corrosion resistant insulated composite pipe of claim 6, wherein, The connecting assembly further comprises a first sealing rubber strip, a second sealing rubber strip and a third sealing rubber strip; the first sealing rubber strip is arranged on the side of the second clamping piece facing the first clamping piece, the second sealing rubber strip is arranged on the support section and located between the port surface of the pipeline unit and the support section, and the third sealing rubber strip is arranged on the side of the first clamping piece facing the second clamping piece and located between the elastic assembly and the support section.

8. The fire resistant corrosion resistant insulated composite pipe of claim 4, wherein, The support section is in the shape of a circular ring in the cross section perpendicular to the preset direction.

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