CN211525844U - Overhead steam heat-preservation pipeline joint coating structure - Google Patents
Overhead steam heat-preservation pipeline joint coating structure Download PDFInfo
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- CN211525844U CN211525844U CN202020106446.3U CN202020106446U CN211525844U CN 211525844 U CN211525844 U CN 211525844U CN 202020106446 U CN202020106446 U CN 202020106446U CN 211525844 U CN211525844 U CN 211525844U
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Abstract
The utility model discloses an overhead steam insulation pipeline repaired mouth structure, the end connection department at two adjacent insulating tubes forms the heat preservation and connects, the repaired mouth position of two insulating tubes is equipped with the spiral repaired mouth pipe with the same material of prefabricated insulating tube outer protective tube, spiral repaired mouth pipe is equipped with axial weatherability joint strip in repaired mouth position and axial overlap joint department along the back parcel that the axial cracks, spiral repaired mouth pipe is equipped with circumference to weatherability joint strip in the overlap joint department of circumferencial direction with the insulating tube, the overlap joint is provided with the blind rivet that the fastening was used, vacuole formation between the high temperature resistant aluminium foil reflection stratum in spiral repaired mouth pipe and the outside, there is the modified polyurethane insulation material that can on-the-spot foaming in the cavity. The utility model discloses think about ingenious, structural connection is reliable, adopts double-deck spiral mend mouthful pipe parcel and modified polyurethane insulation material's design for this mend mouthful structure has good heat preservation effect, still has fine sealing performance, has very high intensity simultaneously, and anti pipeline self vibrations ability is good.
Description
Technical Field
The utility model relates to a thermal insulation pipe joint coating technical field especially relates to an overhead steam insulation pipeline joint coating structure.
Background
Because the prefabricated overhead steam heat-insulating pipeline main body heat-insulating pipe is a finished product heat-insulating pipe prefabricated by various devices and advanced processes in a factory, the heat-insulating performance, the sealing performance and the anti-seismic performance of the product are good. Therefore, the joint coating process in site construction becomes a crucial link of the heat preservation pipe network, if the joint coating quality is poor, the pipe network can be caused to operate, rainwater enters the heat preservation layer or the pipeline vibrates to cause the heat preservation structure at the heat preservation joint coating to collapse, the heat preservation layer structure is damaged, local heat preservation failure is caused, and the heat loss of the pipeline is increased. Therefore, how to develop a joint coating structure to have a good heat preservation effect and a good sealing performance becomes a technical problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an overhead steam insulation pipeline repaired mouth structure provides and has good heat preservation effect, still has fine sealing performance simultaneously.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to an overhead steam heat preservation pipeline repaired mouth structure, the end connection department of two adjacent insulating tubes forms the heat preservation connection, two the center of insulating tube is the working tube and welds together after aligning, the outer wall of working tube is equipped with anticorrosive coating, the working tube wraps up a layer thermal-insulated drag reduction material outward, the outside of thermal-insulated drag reduction material is equipped with two layers of silicate insulating layers, each layer of silicate insulating layer surface parcel one deck high temperature resistant aluminium foil reflection stratum; the repaired mouth positions of the two heat preservation pipes are provided with spiral repaired mouth pipes made of the same materials as the prefabricated heat preservation pipe outer protective pipes, the spiral repaired mouth pipes are axially slotted and then wrapped in the repaired mouth positions and the axial lap joints, the spiral repaired mouth pipes and the heat preservation pipes are internally provided with circumferential weather-resistant sealing rubber strips in the lap joints in the circumferential direction, the lap joints are provided with pull rivets for fastening, the spiral repaired mouth pipes and the outer side of the prefabricated heat preservation pipe outer protective pipes form a cavity, and the cavity is internally provided with a modified polyurethane heat preservation material capable of foaming on site.
Furthermore, the spiral opening repairing pipe and the prefabricated heat-insulating pipe outer protecting pipe are made of the same material, and specifically made of aluminum or iron.
Still further, the thermal-insulation drag-reduction material specifically adopts aerogel thermal-insulation felt, and the thickness is set to be 10 mm.
Still further, the silicate heat-insulating layer specifically adopts a microporous calcium silicate tile, and the thickness is set to be 30-50 mm.
Still further, still include stainless steel packing area, each layer of material is equipped with twice stainless steel packing area outward.
Furthermore, the axial lap joint width of the two ends of the spiral opening filling pipe and the two heat preservation pipes is not less than 200 mm; spiral mend oral siphon and two insulating tube circumferencial direction overlap joint length and be not less than 100mm, wherein, the working pipe fluid matter comes to set up to 200mm to the overlap joint width, and outflow one side overlap joint width sets up to 100 mm.
And further, when the spiral repaired mouth pipe is fixed, the working pipe fluid is fixed to the lap joint by a rivet, the other side is a movable end temporarily, and the steam pipe network is fixed by rivet after running for 72 hours.
Still further, circumference weatherability joint strip and axial weatherability joint strip all set up in the overlap joint intermediate position.
Still further, the modified polyurethane thermal insulation material specifically adopts PIR.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model relates to an overhead steam heat preservation pipeline repaired mouth structure, the repaired mouth position of two insulating tubes is equipped with spiral repaired mouth pipe, and spiral repaired mouth pipe is wrapped up in repaired mouth position and axial overlap joint department after cracking along the axial, is equipped with the axial weatherability joint strip in the overlap joint department of spiral repaired mouth pipe and insulating tube circumferencial direction, the overlap joint department is provided with the rivet that fastening was used, and each layer material is equipped with two ways of stainless steel packing area outward to guarantee the stability of connection; meanwhile, a cavity is formed between the spiral joint coating pipe and the high-temperature resistant aluminum foil reflecting layer on the outer side, and a modified polyurethane heat-insulating material capable of foaming on site is arranged in the cavity, so that the sealing property and the heat-insulating property of the joint coating position are ensured. The utility model discloses think about ingenious, structural connection is reliable, adopts double-deck spiral mend mouthful pipe parcel and modified polyurethane insulation material's design for this mend mouthful structure has good heat preservation effect, still has fine sealing performance, has very high intensity simultaneously, and anti pipeline self vibrations ability is good.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a front view of the joint coating structure of the overhead steam insulation pipeline of the present invention;
FIG. 2 is a sectional view of the utility model at the B-B position;
FIG. 3 is a schematic view of the pipe orifice lapping of the overhead steam insulation pipeline of the present invention;
description of reference numerals: 1. a working pipe; 2. a heat-insulating and drag-reducing material; 3. a silicate heat-insulating layer; 4. a high temperature resistant aluminum foil reflective layer; 5. modified polyurethane heat-insulating material; 6. a spiral repaired mouth pipe; 7. a circumferential weather-resistant sealing rubber strip; 8. an axial weather-resistant sealing rubber strip; 9. an anti-corrosion coating; 10. pulling a rivet; 11. packing a belt; 12. and (5) prefabricating an outer protective pipe of the heat-insulating pipe.
Detailed Description
As shown in fig. 1-3, in the joint structure of the overhead steam heat-insulating pipeline, a heat-insulating connection is formed at the joint of the end parts of two adjacent heat-insulating pipes, the centers of the two heat-insulating pipes are working pipes 1 and are welded together after being aligned, the outer wall of the working pipe 1 is provided with an anticorrosive coating 9, the working pipe 1 is wrapped with a layer of heat-insulating and drag-reducing material 2, the outer side of the heat-insulating and drag-reducing material 2 is provided with two silicate heat-insulating layers 3, and the surface of each silicate heat-insulating layer 3 is wrapped with a high-temperature-resistant aluminum foil reflection layer; the repaired mouth positions of the two heat-insulating pipes are provided with spiral repaired mouth pipes 6 made of the same materials as prefabricated heat-insulating pipe outer protective pipes 12, the spiral repaired mouth pipes 6 are axially slotted and then wrapped in the repaired mouth positions and the axial lap joints to form axial weather-resistant sealing rubber strips 8, the spiral repaired mouth pipes 6 and the heat-insulating pipes are internally provided with circumferential weather-resistant sealing rubber strips 7 in the lap joints in the circumferential direction, the lap joints are provided with pull rivets 10 for fastening, a cavity is formed between the spiral repaired mouth pipes 6 and the prefabricated heat-insulating pipe outer protective pipes 12 on the outer side of the heat-insulating pipes, and the cavity is internally provided with a modified polyurethane heat-insulating material 5 capable of being foamed on site. Specifically, the circumferential weather-resistant sealing rubber strip 7 and the axial weather-resistant sealing rubber strip 8 are both arranged in the middle of the lap joint. The sealing device also comprises stainless steel packing belts 11, wherein two stainless steel packing belts are arranged outside each layer of material, so that the material is firmly fixed at the position of the repaired mouth.
The spiral opening repairing pipe 6 and the prefabricated heat-preservation pipe outer protecting pipe 12 are made of the same material, and specifically made of aluminum or iron.
The thermal insulation and drag reduction material 2 specifically adopts aerogel thermal insulation felt, and the thickness is set to be 10 mm. The silicate heat-insulating layer 3 is a microporous calcium silicate tile with the thickness of 30-50 mm.
The axial lap joint width of the two ends of the spiral opening filling pipe 6 and the two heat preservation pipes is not less than 200 mm; spiral repaired mouth pipe 6 is not less than 100mm with two insulating tube circumferencial direction overlap joint length, and wherein, the working pipe fluid matter comes to set up to 200mm to the overlap joint width, and outflow one side overlap joint width sets up to 100 mm. When the spiral opening repairing pipe 6 is fixed, the working pipe is fixed by a rivet at the lap joint part through fluid, the other side is a movable end temporarily, and the steam pipe network is fixed by the rivet after running for 72 hours.
The modified polyurethane thermal insulation material 5 is specifically made of PIR, and is foamed into hard modified polyurethane by a high-pressure foaming machine.
The utility model discloses an operation process as follows:
firstly, an overhead steam heat-insulating pipeline is a pipeline with a specified length prefabricated in a factory, the center of the heat-insulating pipeline is a working pipe 1, the outer wall of the working pipe 1 is provided with an anticorrosive coating 9, the anticorrosive coating 9 is externally wrapped with a layer of heat-insulating and resistance-reducing material 2, two layers of silicate heat-insulating layers 3 are arranged on the outer sides of the heat-insulating and resistance-reducing materials 2, the surfaces of the silicate heat-insulating layers 3 are wrapped with a layer of high-temperature-resistant aluminum foil reflecting layer 4, the outer part of the high-temperature-resistant aluminum foil reflecting layer 4 on the outer side is wrapped with a prefabricated.
Secondly, when assembling the on-site pipe network, an operator supports and positions two heat preservation pipes and then aligns the axes, the distance between the pipe orifices of the two heat preservation pipes (the positions needing opening repair) is generally 300-500mm, the two aligned working pipes 1 are welded together, the outer wall of each working pipe 1 is provided with an anticorrosive coating 9, a layer of heat-insulating and resistance-reducing material 2 and two layers of silicate heat-insulating layers 3 are sequentially wrapped outside the anticorrosive coating 9 from inside to outside, and the surface of each silicate heat-insulating layer 3 is wrapped with a high-temperature-resistant aluminum foil reflection layer 4; after the primary wrapping is finished, the diameter of the wrapping is equivalent to that of the heat preservation pipes on the two sides;
then the spiral repaired mouth pipe 6 which is made of the same material as the prefabricated insulation pipe outer protective pipe 12 is cut along the axial direction, the cut spiral repaired mouth pipe 6 is wrapped on the repaired mouth positions of the two insulation pipes, the lap joint length of the opening edge of the spiral repaired mouth pipe 6 is 200mm, the axial lap joint part is bonded together by an axial weather-resistant sealing rubber strip 8, the spiral opening repairing pipe 6 and the heat preservation pipe are lapped in the circumferential direction, wherein the working pipe fluid is arranged to be not less than 200mm towards the lapping width, the lapping width at the outflow side is not less than 100mm, the lap joint with the heat preservation pipe is bonded together by a circumferential weather-resistant sealing rubber strip 7 and then is riveted by a rivet, the lap joint in the axial direction and the circumferential direction is fastened by a rivet 10, when the axial lap joint rivet is used for rivet pulling and fixing, the working pipe is fixed by the rivet in the lap joint position through fluid, the other side is a movable end temporarily, and the steam pipe network is fixed by rivet pulling after running for 72 hours; and finally, punching a hole 25mm in the middle of the spiral opening repairing pipe 6, sealing after injecting polyurethane material, foaming into a modified polyurethane thermal insulation material 5, and filling the cavity between the prefabricated thermal insulation pipe outer protective pipe 12 and the spiral opening repairing pipe 6 to form an outer thermal insulation layer at the opening repairing position.
Wherein, when the work pipe 1 welding back multilayer structure of repaired mouth structure is applied paint with a brush or is wrapped up the setting, can use packing area 11, carry out the hoop when the work pipe 1 of repaired mouth department is attached to each layer of material and wrap up with packing area 11 at this layer of material surface, use packing area at two position symmetries at least, can further guarantee compactness and the firmness that each layer of repaired mouth structure is connected.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (9)
1. The utility model provides an overhead steam insulation pipeline repaired mouth structure, forms heat preservation connection, its characterized in that at the end connection department of two adjacent insulating tubes: the centers of the two heat preservation pipes are working pipes (1) which are welded together after being aligned, the outer walls of the working pipes (1) are provided with anticorrosive coatings (9), the working pipes (1) are wrapped with a layer of heat-insulating and drag-reducing material (2), the outer sides of the heat-insulating and drag-reducing material (2) are provided with two silicate heat-insulating layers (3), and the surface of each silicate heat-insulating layer (3) is wrapped with a high-temperature-resistant aluminum foil reflecting layer (4); the repaired mouth positions of two insulating tubes are equipped with spiral repaired mouth pipe (6) with the same material of prefabricated insulating tube outer protective tube (12), spiral repaired mouth pipe (6) are followed and are sewed up the back parcel and be equipped with axial weatherability joint strip (8) in repaired mouth position and axial overlap joint department along the axial, spiral repaired mouth pipe (6) with the insulating tube is equipped with circumference in the overlap joint department of circumferencial direction to weatherability joint strip (7), the overlap joint department is provided with rivet (10) that the fastening was used, spiral repaired mouth pipe (6) and the outside prefabricated insulating tube outer protective tube (12) between form the cavity, there is in the cavity modified polyurethane insulation material (5) that can foam on-the-spot.
2. The overhead steam insulated pipeline joint coating structure of claim 1, characterized in that: the spiral opening repairing pipe (6) and the prefabricated heat-preservation pipe outer protecting pipe (12) are made of the same material, and specifically made of aluminum or iron.
3. The overhead steam insulated pipeline joint coating structure of claim 1, characterized in that: the thermal insulation and drag reduction material (2) specifically adopts aerogel thermal insulation felt, and the thickness is set to be 10 mm.
4. The overhead steam insulated pipeline joint coating structure of claim 1, characterized in that: the silicate heat insulation layer (3) is a microporous calcium silicate tile with the thickness of 30-50 mm.
5. The overhead steam insulated pipeline joint coating structure of claim 1, characterized in that: the packaging bag also comprises stainless steel packaging belts, and two stainless steel packaging belts are arranged outside each layer of material.
6. The overhead steam insulated pipeline joint coating structure of claim 1, characterized in that: the axial lap joint width of the two ends of the spiral opening filling pipe (6) and the two heat preservation pipes is not less than 200 mm; spiral mend oral siphon (6) and two insulating tube circumferencial direction overlap joint length and be not less than 100mm, and wherein, the working pipe fluid matter sets up to 200mm to the overlap joint width, and outflow one side overlap joint width sets up to 100 mm.
7. The overhead steam insulated pipeline joint coating structure of claim 1, characterized in that: when the spiral opening repairing pipe (6) is fixed, the working pipe is fixed by a rivet at the lap joint part through fluid, the other side is a movable end temporarily, and the steam pipe network is fixed by the rivet after running for 72 hours.
8. The overhead steam insulated pipeline joint coating structure of claim 1, characterized in that: and the circumferential weather-resistant sealing rubber strip (7) and the axial weather-resistant sealing rubber strip (8) are arranged in the middle of the lap joint.
9. The overhead steam insulated pipeline joint coating structure of claim 1, characterized in that: the modified polyurethane thermal insulation material (5) specifically adopts PIR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020106446.3U CN211525844U (en) | 2020-01-17 | 2020-01-17 | Overhead steam heat-preservation pipeline joint coating structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020106446.3U CN211525844U (en) | 2020-01-17 | 2020-01-17 | Overhead steam heat-preservation pipeline joint coating structure |
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| CN211525844U true CN211525844U (en) | 2020-09-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460380A (en) * | 2020-10-26 | 2021-03-09 | 中投(天津)智能管道股份有限公司 | Clamping plate type on-site joint coating method for heat-insulating pipeline |
| CN114043148A (en) * | 2021-11-19 | 2022-02-15 | 中投(天津)智能管道股份有限公司 | Fastening tool for on-site joint coating of directly-buried heat-insulating pipeline |
| CN114484080A (en) * | 2020-12-18 | 2022-05-13 | 新疆零碳节能科技有限公司 | Soft-hard combined prefabricated steam overhead heat-insulating pipe with fixing layer |
-
2020
- 2020-01-17 CN CN202020106446.3U patent/CN211525844U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460380A (en) * | 2020-10-26 | 2021-03-09 | 中投(天津)智能管道股份有限公司 | Clamping plate type on-site joint coating method for heat-insulating pipeline |
| CN114484080A (en) * | 2020-12-18 | 2022-05-13 | 新疆零碳节能科技有限公司 | Soft-hard combined prefabricated steam overhead heat-insulating pipe with fixing layer |
| CN114484080B (en) * | 2020-12-18 | 2023-11-07 | 新疆零碳节能科技有限公司 | Soft and hard combined prefabricated steam overhead heat-insulating pipe with fixed layer |
| CN114043148A (en) * | 2021-11-19 | 2022-02-15 | 中投(天津)智能管道股份有限公司 | Fastening tool for on-site joint coating of directly-buried heat-insulating pipeline |
| CN114043148B (en) * | 2021-11-19 | 2024-04-19 | 中投(天津)智能管道股份有限公司 | Tightening tool for site repair opening of directly-buried heat-insulating pipeline |
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