CN115163982A - Novel spraying winding heat supply insulating pipe - Google Patents
Novel spraying winding heat supply insulating pipe Download PDFInfo
- Publication number
- CN115163982A CN115163982A CN202210734617.0A CN202210734617A CN115163982A CN 115163982 A CN115163982 A CN 115163982A CN 202210734617 A CN202210734617 A CN 202210734617A CN 115163982 A CN115163982 A CN 115163982A
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- China
- Prior art keywords
- pipe
- heat preservation
- heat
- outer sheath
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeves; consisting of two half sleeves; comprising more than two segments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Compositions for or methods of fixing a thermally insulating material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
- F16L59/182—Joints with sleeve or socket
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a novel spraying and winding heat supply heat preservation pipe, which relates to the technical field of heat preservation pipes and aims to solve the problem that the temperature of medium liquid in the pipe is easy to lose when the heat preservation layer with a single structure is adopted in the conventional heat preservation pipe; the heliciform recess has been seted up on the surface on first heat preservation, through reducing the area of contact between first heat preservation and the first oversheath, can be so that possess more cavities between the two, because the cavity possesses lower coefficient of heat conductivity than the heat preservation, can reduce the temperature loss of transported substance in the insulating tube at the transportation to a certain extent, the heliciform recess just reserves when spraying first heat preservation, need not to carry out extra processing, has reduced the processing cost.
Description
Technical Field
The invention relates to the technical field of heat preservation pipes, in particular to a novel spraying winding heat supply heat preservation pipe.
Background
The spraying and winding heat supply heat preservation pipe consists of a working steel pipe, a spraying polyurethane heat preservation layer and an extruded polyethylene outer protection layer. The thickness of the heat-insulating layer and the thickness of the protective layer can be adjusted randomly in a certain range according to requirements during production, and the quantitative production can be carried out according to the parameters of media in central heating and cooling and the thickness of the heat-insulating layer required by actual heat dissipation loss, so that the requirements of different projects are met.
The existing heat preservation pipe generally comprises an inner hot galvanized pipe, an outer protective pipe and a heat preservation layer between the hot galvanized pipe and the outer protective pipe. In the prior art, the heat-insulating layer is generally made of polyurethane, and some heat-insulating layers are made of rock wool. The heat preservation effect of the conventional heat preservation pipe is not ideal, and especially when the heat preservation pipe is transported in a long distance, the heat loss in the heat preservation pipe is too large due to the poor heat preservation effect of the heat preservation pipe, so that a large amount of energy is wasted.
The existing heat preservation pipe adopts a heat preservation layer with a single structure, and because the heat preservation layer is tightly contacted with the pipe core and the outer sheath, the heat exchange amount between the pipe core and the outer sheath is large, and the temperature loss of medium liquid in the pipe is easy to cause;
the present invention is directed to a solution to the above-mentioned problems.
Disclosure of Invention
In order to solve the problems, namely the problems of the background art, the invention provides a novel spraying and winding heat supply insulating pipe, which comprises a pipe core, a first insulating layer and a first outer sheath which are sequentially arranged from inside to outside, wherein the contact area of the outer surface of the first insulating layer and the first outer sheath is 1/2-2/3 of the area of the outer surface of the first insulating layer;
a spiral groove is formed in the surface of the first heat preservation layer;
the heat preservation pipe is connected through connecting portion, connecting portion include the connecting pipe, the connecting pipe with tube core interference fit, the outside of connecting pipe still has set gradually second heat preservation and second outer sheath.
The invention is further configured as follows: the first heat preservation layer is a foamed polyurethane layer.
The invention is further configured as follows: and two sides of the second outer sheath are sealed by sealing flanges.
The invention is further configured as follows: the first outer sheath and the second outer sheath are both polyethylene layers.
The invention is further configured as follows: the tube core is a galvanized steel tube.
The invention is further provided with: and the surfaces of the first outer sheath and the second outer sheath are also sprayed with anti-corrosion layers.
The invention is further configured as follows: the inner cavity of the connecting pipe is a stepped cavity, a sealing ring is arranged in the stepped cavity, and the sealing of the connecting part is realized through the close contact of the sealing ring and the pipe core.
The beneficial technical effects of the invention are as follows:
the contact area between the first heat-insulating layer and the first outer sheath is reduced, so that more cavities are formed between the first heat-insulating layer and the first outer sheath, and the temperature loss of a medium transported in the heat-insulating pipe in a transportation process can be reduced to a certain extent due to the fact that the cavities have lower heat conductivity coefficient compared with the heat-insulating layer;
the arrangement form of the spiral groove is adopted to increase the cavities between the first heat preservation layer and the first outer sheath, the spiral groove is reserved when the first heat preservation layer is sprayed, extra processing is not needed, and the processing cost is reduced;
the foamed polyurethane is used as the material of the first heat-insulating layer, so that the first heat-insulating layer has a higher heat-insulating coefficient, and the heat loss of medium liquid in the heat-insulating pipe is reduced;
the heat preservation pipe is connected through the connecting portion, and the structure of connecting portion is provided with and does benefit to reducing the thermal scattering and disappearing of connecting portion department to further improvement heat preservation performance of heat preservation pipe when the transportation medium liquid.
Drawings
FIG. 1 shows a schematic of an axial side construction of the present invention;
FIG. 2 shows a schematic front cross-sectional structure of the present invention;
FIG. 3 shows a schematic structural view of the sealing flange of the present invention;
FIG. 4 is a schematic view of the invention at a point A in FIG. 2, shown enlarged in detail;
fig. 5 shows a schematic view of the present invention at a part B in fig. 2.
Reference numerals are as follows: 1-tube core, 2-first heat preservation layer, 3-first outer sheath, 4-connecting part, 41-connecting pipe, 42-second heat preservation layer, 43-second outer sheath, 5-anti-corrosion layer, 6-sealing ring and 7-sealing flange.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
The embodiment is as follows:
referring to fig. 1-5, the invention provides a novel spray-wound heat-supply heat-insulation pipe, which realizes remote transportation of media and ensures that the heat-insulation pipe and the joint of the heat-insulation pipe have good heat-insulation performance;
the heat preservation pipe comprises a pipe core 1, a first heat preservation layer 2 and a first outer sheath 3 which are sequentially arranged from inside to outside, the prior art means are adopted for the second time, the heat preservation pipe is common with the conventional heat preservation pipe, and detailed description is omitted;
the contact area of the outer surface of the first heat preservation layer 2 and the first outer sheath 3 is 1/2-2/3 of the area of the outer surface of the first heat preservation layer 2;
the contact area between the first heat-insulating layer 2 and the first outer sheath 3 is reduced, so that more cavities are formed between the first heat-insulating layer 2 and the first outer sheath, and the cavities have lower heat conductivity coefficient compared with the heat-insulating layer, so that the temperature loss of the medium transported in the heat-insulating pipe in the transportation process can be reduced to a certain extent by adopting the means;
in this embodiment, the first thermal insulation layer 2 is disposed on the tube core 1 in an annular spraying manner, and a spiral groove can be naturally formed during spraying.
When setting up the foaming polyurethane layer, the tube core 1 is at the uniform velocity marching on the rotatory tow boat that has certain angle, and the spray gun is with polyurethane raw materials spraying on the tube core 1 that the spiral is advanced, and polyurethane raw materials launches in a certain time, reaches certain compressive strength and thickness, accomplishes the preparation of first heat preservation.
The area of the outer surface of the first heat-preservation layer 2 in contact with the first outer sheath 3 is reduced, and meanwhile, the first heat-preservation layer 2 is guaranteed to have sufficient support performance for the first outer sheath 3, in the embodiment, the requirement is met by limiting the contact proportion between the first heat-preservation layer 2 and the first outer sheath 3, the contact proportion is limited to 1/2-2/3, and the requirements of heat preservation performance and support performance can be met.
The heat preservation pipes are connected through a connecting part 4, the connecting part 4 comprises a connecting pipe 41, the connecting pipe 41 is in interference fit with the pipe core 1, and a second heat preservation layer 42 and a second outer sheath 43 are sequentially arranged outside the connecting pipe 41;
in the embodiment, the connection relationship is established between the heat preservation pipes through the connection part 4, in the embodiment, the connection form of the interference fit is adopted between the connection pipe 41 and the pipe core 1, and the interference fit can ensure the stability of the combination of the two on one hand and can obtain better sealing performance between the two on the other hand;
the surfaces of the first outer sheath 2 and the second outer sheath 43 are also sprayed with an anti-corrosion layer 5 to improve the overall corrosion resistance of the insulating pipe.
In this embodiment, the tube core 1 and the connection tube 41 are both circular tubes, the inner cavity of the connection tube 41 is a stepped cavity, a sealing ring 6 is arranged in the stepped cavity, and the sealing of the connection part 4 is realized by the close contact between the sealing ring 6 and the end surface of the tube core 1;
the sealing ring 6 is made of metal materials so as to ensure that the sealing ring 6 has longer service life;
in this embodiment, the seal ring 6 has two sealing surfaces contacting the die 1, one is a surface contacting the outer sidewall of the die 1, and the other is a surface contacting the end surface of the die 1, and in order to ensure the sealing performance, the end surface and the outer surface of the end of the die are polished before the connection.
When the sealing ring is connected, the tube core 1 and the connecting tube 41 can be assembled by adopting the principle of expansion with heat and contraction with cold, namely, the connecting tube 41 is heated and/or the tube core 1 is cooled, the two are mutually inserted tightly, the end part of the tube core 1 is close to the sealing ring 6, after the connecting tube 41 and/or the tube core are restored to the normal temperature state, the two are tightly jointed, and the sealing between the connecting tube 41 and the tube core 1 is realized.
In this embodiment, the second insulating layer 42 is one of an asbestos layer or a foamed polyurethane layer, and is disposed on the second outer sheath 43 in a preset form to ensure the overall insulating performance of the connecting portion 4, and sealing flanges 7 are further disposed at two ends of the outer sheath 43, and a sealing relationship is established between the sealing flange 7 and the outer sheath 43 and the connecting pipe 41 through rubber sealing rings to prevent the asbestos layer or the foamed polyurethane layer from being affected with damp to reduce the insulating performance of the asbestos layer or the foamed polyurethane layer;
in this embodiment, the sealing flange 7 is divided into two half rings, which are detachably connected to each other, for example, the end portions of the half rings are respectively provided with a connecting pin and a connecting hole, and the connecting holes and the connecting pins are matched to realize the assembling and the combining of the sealing flange 7.
In this embodiment, the first outer sheath 3 and the second outer sheath 43 are both polyethylene layers, and the tube core 1 is a galvanized steel tube.
Preferably, the surfaces of the first outer sheath 2 and the second outer sheath 43 are further coated with an anti-corrosion layer 6 to improve the anti-corrosion performance of the connecting part 4 and the insulating pipe.
While the invention has been described with reference to a preferred embodiment, various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, and particularly, features may be combined in any suitable manner as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (7)
1. The utility model provides a novel spraying winding heat supply insulating tube, includes by interior and outer tube core, first heat preservation and the first oversheath that sets gradually, its characterized in that: the area of the outer surface of the first heat-preservation layer in contact with the first outer sheath is 1/2-2/3 of the area of the outer surface of the first heat-preservation layer;
a spiral groove is formed in the surface of the first heat preservation layer;
the heat preservation pipe is connected through connecting portion, connecting portion include the connecting pipe, the connecting pipe with tube core interference fit, the outside of connecting pipe still has set gradually second heat preservation and second outer sheath.
2. The novel spraying and winding heat supply thermal insulation pipe according to claim 1, characterized in that: the first heat preservation layer is a foamed polyurethane layer.
3. The novel spraying and winding heat supply thermal insulation pipe as claimed in claim 1, characterized in that: and two sides of the second outer sheath are sealed by sealing flanges.
4. The novel spraying and winding heat supply thermal insulation pipe as claimed in claim 1, characterized in that: the first outer sheath and the second outer sheath are both polyethylene layers.
5. The novel spraying and winding heat supply thermal insulation pipe according to claim 1, characterized in that: the pipe core is a galvanized steel pipe.
6. The novel spraying and winding heat supply thermal insulation pipe as claimed in claim 4, characterized in that: and the surfaces of the first outer sheath and the second outer sheath are also sprayed with an anti-corrosion layer.
7. The novel spraying and winding heat supply thermal insulation pipe according to claim 1, characterized in that: the inner cavity of the connecting pipe is a stepped cavity, a sealing ring is arranged in the stepped cavity, and the sealing of the connecting part is realized through the close contact of the sealing ring and the pipe core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210734617.0A CN115163982A (en) | 2022-06-27 | 2022-06-27 | Novel spraying winding heat supply insulating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210734617.0A CN115163982A (en) | 2022-06-27 | 2022-06-27 | Novel spraying winding heat supply insulating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115163982A true CN115163982A (en) | 2022-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210734617.0A Pending CN115163982A (en) | 2022-06-27 | 2022-06-27 | Novel spraying winding heat supply insulating pipe |
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| Country | Link |
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| CN (1) | CN115163982A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1237470A (en) * | 1968-08-08 | 1971-06-30 | Kabel Metallwerke Ghh | Spacers for coaxial tube assemblies |
| US20050047871A1 (en) * | 2003-05-06 | 2005-03-03 | Kang Lee | Load-bearing, lightweight, and compact super-insulation system |
| CN204267991U (en) * | 2014-11-12 | 2015-04-15 | 江苏兰宇保温科技有限公司 | Ripple type polyurethane heat-insulation structure |
| CN106195529A (en) * | 2016-08-31 | 2016-12-07 | 北京恩吉节能科技有限公司 | A kind of composite heat-insulating layer with cavity structure |
| CN207034423U (en) * | 2016-09-11 | 2018-02-23 | 深圳市博新美纳米科技有限公司 | Novel nano antibacterial pipe |
| JP2018066395A (en) * | 2016-10-17 | 2018-04-26 | Ｊｆｅスチール株式会社 | Thermal insulation structure and method for attaching the thermal insulation structure to piping |
| CN109578752A (en) * | 2019-01-29 | 2019-04-05 | 信达科创（唐山）石油设备有限公司 | A kind of overlength heat preservation steel jacket pipe and its processing technology |
| CN209430954U (en) * | 2018-12-18 | 2019-09-24 | 杨延勇 | Insulation construction |
| CN209430956U (en) * | 2018-12-18 | 2019-09-24 | 杨延勇 | Insulation construction |
| CN212617072U (en) * | 2020-06-05 | 2021-02-26 | 张星 | Prefabricated direct-burried insulating tube with novel waterproof construction |
| CN215721457U (en) * | 2021-08-23 | 2022-02-01 | 上海科华热力管道有限公司 | Steam heat preservation pipe interface module |
| CN114458838A (en) * | 2022-01-22 | 2022-05-10 | 巩义市泛锐熠辉复合材料有限公司 | Heat-insulation composite pipe and preparation method thereof |
-
2022
- 2022-06-27 CN CN202210734617.0A patent/CN115163982A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1237470A (en) * | 1968-08-08 | 1971-06-30 | Kabel Metallwerke Ghh | Spacers for coaxial tube assemblies |
| US20050047871A1 (en) * | 2003-05-06 | 2005-03-03 | Kang Lee | Load-bearing, lightweight, and compact super-insulation system |
| CN204267991U (en) * | 2014-11-12 | 2015-04-15 | 江苏兰宇保温科技有限公司 | Ripple type polyurethane heat-insulation structure |
| CN106195529A (en) * | 2016-08-31 | 2016-12-07 | 北京恩吉节能科技有限公司 | A kind of composite heat-insulating layer with cavity structure |
| CN207034423U (en) * | 2016-09-11 | 2018-02-23 | 深圳市博新美纳米科技有限公司 | Novel nano antibacterial pipe |
| JP2018066395A (en) * | 2016-10-17 | 2018-04-26 | Ｊｆｅスチール株式会社 | Thermal insulation structure and method for attaching the thermal insulation structure to piping |
| CN209430954U (en) * | 2018-12-18 | 2019-09-24 | 杨延勇 | Insulation construction |
| CN209430956U (en) * | 2018-12-18 | 2019-09-24 | 杨延勇 | Insulation construction |
| CN109578752A (en) * | 2019-01-29 | 2019-04-05 | 信达科创（唐山）石油设备有限公司 | A kind of overlength heat preservation steel jacket pipe and its processing technology |
| CN212617072U (en) * | 2020-06-05 | 2021-02-26 | 张星 | Prefabricated direct-burried insulating tube with novel waterproof construction |
| CN215721457U (en) * | 2021-08-23 | 2022-02-01 | 上海科华热力管道有限公司 | Steam heat preservation pipe interface module |
| CN114458838A (en) * | 2022-01-22 | 2022-05-10 | 巩义市泛锐熠辉复合材料有限公司 | Heat-insulation composite pipe and preparation method thereof |
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