CN217784587U - Protective device for joint coating of crossing heat supply pipeline by directional drill - Google Patents
Protective device for joint coating of crossing heat supply pipeline by directional drill Download PDFInfo
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- CN217784587U CN217784587U CN202221759716.6U CN202221759716U CN217784587U CN 217784587 U CN217784587 U CN 217784587U CN 202221759716 U CN202221759716 U CN 202221759716U CN 217784587 U CN217784587 U CN 217784587U
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- supply pipeline
- density polyethylene
- heat
- heat supply
- joint coating
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Abstract
The utility model discloses a directional drill crossing heat supply pipeline joint coating protection device, which comprises a polyurethane foam heat preservation layer, wherein the polyurethane foam heat preservation layer is wrapped outside the heat supply pipeline, and an anti-friction protection layer is arranged outside the polyurethane foam heat preservation layer; the innermost side of antifriction protective layer is for fixing the outside high density polyethylene outer casing of polyurethane foam heat preservation, the outside of high density polyethylene outer casing is provided with high density polyethylene electric capacity oversleeve, the outside of high density polyethylene electric capacity oversleeve is provided with the pyrocondensation area, the outside in pyrocondensation area is provided with epoxy glass steel, and this kind of directional brill crosses heat supply pipeline joint coating protector, through increasing pyrocondensation area and the dual sacrificial protection of epoxy glass steel, realizes the protection to the heat supply pipeline joint coating, prevents that the pipeline joint coating from damaging at the dilatory in-process with high density polyethylene oversleeve, has promoted heat supply pipeline's corrosion resistance.
Description
Technical Field
The utility model relates to a heat supply pipeline field specifically is a directional brill passes through heat supply pipeline joint coating protector.
Background
The heat supply pipeline is a component of a heating power pipe network, and a high-temperature medium conducts heat to a building from a boiler room, a direct-fired machine room, a heat supply center and the like under the dredging of the heat supply pipeline so as to meet the requirements of production and life.
In the urban heat supply pipeline construction process, on-site joint coating operation is often required, the on-site joint coating of the hot water pipeline constructed by the directional drill is adopted in the urban heat supply pipeline, the construction process is the same as that of the ordinary buried hot water pipeline, a high-density polyethylene electric fusion welding type reel joint is adopted for joint coating, and then polyurethane foam material is filled, so that the outer protection electric fusion joint of the pipeline can be separated due to friction between the outer wall of the pipeline and slurry during the directional drill construction, and the working pipe is easy to corrode.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a directional brill passes through heat supply pipeline repaired mouth protector to reach the protection pipeline interface, promote pipeline corrosion resistance's purpose.
The technical scheme of the utility model is realized like this: a protective device for a directional drill crossing heat supply pipeline joint comprises a polyurethane foam heat insulation layer, wherein the polyurethane foam heat insulation layer wraps the outside of the heat supply pipeline, and an anti-friction protective layer is arranged on the outside of the polyurethane foam heat insulation layer;
the innermost side of the anti-friction protective layer is a high-density polyethylene outer protective pipe fixed outside the polyurethane foam heat-insulation layer, a high-density polyethylene capacitor sleeve is arranged outside the high-density polyethylene outer protective pipe, a heat-shrinkable belt is arranged outside the high-density polyethylene capacitor sleeve, and epoxy glass fiber reinforced plastics are arranged outside the heat-shrinkable belt.
Preferably, a smooth coating is arranged outside the anti-friction protective layer.
Preferably, the outer edge of the anti-friction protective layer is provided with filler rubber.
Preferably, the heat-shrinkable belt is annularly and fully wound on the outer part of the high-density polyethylene capacitor sleeve.
Preferably, the edge of the heat-shrinkable belt is more than 40mm away from the end of the high-density polyethylene electrofusion sleeve.
Preferably, the exterior of the epoxy glass fiber reinforced plastic is fixedly bonded with the smooth coating film through gluing.
Preferably, the length of the epoxy glass fiber reinforced plastic is 2m.
Preferably, the epoxy glass fiber reinforced plastic is two cloth five oil glass fiber reinforced plastic.
By adopting the technical scheme, the beneficial effects of the utility model are that:
this kind of directional brill crosses heat supply pipeline joint coating protector through increasing pyrocondensation area and the dual sacrificial protection of epoxy glass steel, realizes the protection to the heat supply pipeline joint coating, prevents that the pipeline joint coating from damaging at dilatory in-process with high density polyethylene oversleeve, has promoted heat supply pipeline's resistance to corrosion.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a front view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is an enlarged cross-sectional view of the anti-friction protective layer of the present invention.
Wherein: 1. a polyurethane foam insulation layer; 2. filling glue; 3. coating the film smoothly; 4. a heat supply pipeline; 5. an anti-friction protective layer; 501. a high density polyethylene outer jacket; 502. high density polyethylene capacitor oversleeves; 503. a heat-shrinkable tape; 504. epoxy glass fiber reinforced plastic; 505. and (6) gluing.
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 of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, a directional drill crossing heat supply pipeline joint coating protection device comprises a polyurethane foam insulation layer 1, the polyurethane foam insulation layer 1 is wrapped outside a heat supply pipeline 4, and an anti-friction protection layer 5 is arranged outside the polyurethane foam insulation layer 1;
the innermost side of the anti-friction protective layer 5 is a high-density polyethylene outer protective pipe 501 fixed outside the polyurethane foam heat-insulating layer 1, a high-density polyethylene capacitor sleeve 502 is arranged outside the high-density polyethylene outer protective pipe 501, a heat-shrinkable belt 503 is arranged outside the high-density polyethylene capacitor sleeve 502, and epoxy glass fiber reinforced plastic 504 is arranged outside the heat-shrinkable belt 503.
Specifically, the smooth coating 3 is arranged outside the anti-friction protective layer 5, so that the friction force between the device and soil and slurry can be reduced through the smooth coating 3, and the damage of the external environment to the device is reduced.
Specifically, the outer fringe department of antifriction protective layer 5 is provided with filler 2, sets up like this and can make 5 outsides of antifriction protective layer be the slope form through filler 2, for antifriction protective layer 5 provides the effect of tip protection simultaneously, avoids mud to get into 5 each layer gaps of antifriction protective layer, has improved antifriction protective layer 5's life-span.
Specifically, the heat-shrinkable band 503 is annularly and fully wound around the outside of the whole high-density polyethylene capacitor sleeve 502, the distance between the edge of the heat-shrinkable band 503 and the end of the high-density polyethylene electrofusion sleeve 502 is greater than 40mm, more specifically, the distance between the edge of the heat-shrinkable band 503 and the end of the high-density polyethylene electrofusion sleeve 502 is 50250mm, after being fully wound, a flame baking mode is adopted, so that the heat-shrinkable band 503 is shrunk, the surfaces of the high-density polyethylene capacitor sleeve 502 and the high-density polyethylene outer protective pipe 501 are fully bonded to form a whole, and the heat-shrinkable band 503 has the function of protecting the high-density polyethylene capacitor sleeve 502.
Specifically, the exterior of the epoxy glass fiber reinforced plastic 504 is fixedly bonded with the smooth coating film 3 through the glue 505, so that the smooth coating film 3 can be fixedly bonded on the exterior of the epoxy glass fiber reinforced plastic 504, and the firmness of the smooth coating film 3 is ensured.
Specifically, the length of the epoxy glass fiber reinforced plastic 504 is 2m, so that the epoxy glass fiber reinforced plastic 504 with the length of 2m can provide enough protection for the internal interface.
Specifically, the epoxy glass fiber reinforced plastic 504 is two cloth five oil glass fiber reinforced plastic.
The working principle is as follows: firstly, overlapping a high-density polyethylene capacitor sleeve 502, carrying out a 0.2MPa air tightness test, filling a polyurethane foam heat-insulating layer 1 after the air tightness test is passed, and winding a heat-shrinkable belt 503 outside a joint, wherein the heat-shrinkable belt 503 is in a ring shape and fully winds the joint of the whole high-density polyethylene capacitor sleeve 502 and extends out to form an electric melting sleeve by about 50mm, after being fully wound, adopting a flame baking mode to ensure that the heat-shrinkable belt 503 shrinks and is fully bonded with the surfaces of the high-density polyethylene capacitor sleeve 502 and the high-density polyethylene outer protective pipe 501 to form a whole, the heat-shrinkable belt 503 has the function of protecting the high-density polyethylene capacitor sleeve 502, meanwhile, adopting epoxy glass fiber reinforced plastics 504 outer protective layers in the range of two sides 2m of a repaired mouth of a pipeline 4, providing a sacrificial protection function for the device in the pipeline dragging process by using the epoxy glass fiber reinforced plastics 504, and adopting the epoxy glass fiber reinforced plastics 504 outer protective layers in the range of two sides 2m of the repaired mouth.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a directional brill passes heat supply pipeline repaired mouth protector which characterized in that: the heat-insulating and heat-insulating pipe comprises a polyurethane foaming heat-insulating layer (1), wherein the polyurethane foaming heat-insulating layer (1) is wrapped outside a heat supply pipeline (4), and an anti-friction protective layer (5) is arranged outside the polyurethane foaming heat-insulating layer (1);
the anti-friction protective layer (5) is characterized in that the innermost side of the anti-friction protective layer (5) is a high-density polyethylene outer protective pipe (501) fixed outside the polyurethane foam heat-insulation layer (1), a high-density polyethylene capacitor sleeve (502) is arranged outside the high-density polyethylene outer protective pipe (501), a heat-shrinkable belt (503) is arranged outside the high-density polyethylene capacitor sleeve (502), and epoxy glass fiber reinforced plastics (504) is arranged outside the heat-shrinkable belt (503).
2. The device of claim 1, wherein the directional drilling cross-over heat supply pipeline joint coating protection device comprises: and a smooth coating (3) is arranged outside the anti-friction protective layer (5).
3. The device of claim 1, wherein the directional drilling cross-over heat supply pipeline joint coating protection device comprises: and the outer edge of the anti-friction protective layer (5) is provided with filler rubber (2).
4. The device of claim 1, wherein the directional drilling cross-over heat supply pipeline joint coating protection device comprises: the heat-shrinkable belt (503) is annularly and fully wound on the outer part of the whole high-density polyethylene capacitor sleeve (502).
5. The device of claim 1, wherein the directional drilling across the repaired mouth of the heating pipeline comprises: the edge of the heat-shrinkable belt (503) is more than 40mm away from the end of the high-density polyethylene capacitor sleeve (502).
6. The device of claim 2, wherein the directional drilling cross-over heat supply pipeline joint coating protection device comprises: the exterior of the epoxy glass fiber reinforced plastic (504) is fixedly bonded with the smooth coating (3) through glue (505).
7. The device of claim 1, wherein the directional drilling across the repaired mouth of the heating pipeline comprises: the epoxy glass fiber reinforced plastic (504) has a length of 2m.
8. The device of claim 1, wherein the directional drilling cross-over heat supply pipeline joint coating protection device comprises: the epoxy glass fiber reinforced plastic (504) is two cloth five oil glass fiber reinforced plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221759716.6U CN217784587U (en) | 2022-07-08 | 2022-07-08 | Protective device for joint coating of crossing heat supply pipeline by directional drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221759716.6U CN217784587U (en) | 2022-07-08 | 2022-07-08 | Protective device for joint coating of crossing heat supply pipeline by directional drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217784587U true CN217784587U (en) | 2022-11-11 |
Family
ID=83938898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221759716.6U Active CN217784587U (en) | 2022-07-08 | 2022-07-08 | Protective device for joint coating of crossing heat supply pipeline by directional drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217784587U (en) |
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2022
- 2022-07-08 CN CN202221759716.6U patent/CN217784587U/en active Active
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