CN216143303U - Prefabricated direct-burried insulation steel pipe that corrosion resistance is strong - Google Patents
Prefabricated direct-burried insulation steel pipe that corrosion resistance is strong Download PDFInfo
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- CN216143303U CN216143303U CN202121994080.9U CN202121994080U CN216143303U CN 216143303 U CN216143303 U CN 216143303U CN 202121994080 U CN202121994080 U CN 202121994080U CN 216143303 U CN216143303 U CN 216143303U
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- corrosion resistance
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Abstract
The utility model discloses a prefabricated directly-buried heat-insulating steel pipe with strong corrosion resistance, which comprises a heat-insulating pipe body, wherein the heat-insulating pipe body comprises an outer protective steel pipe, a first polyethylene outer sleeve, a polyurethane filling layer, a second polyethylene outer sleeve and an inner protective steel pipe, the outer side of the inner protective steel pipe is provided with the second polyethylene outer sleeve, and the outer side of the second polyethylene outer sleeve is fixedly connected with the polyurethane filling layer. According to the utility model, through the heat-insulating pipe body, the first polyethylene outer sleeve, the outer protective coating, the second polyethylene outer sleeve, the inner protective coating, the first zinc coating, the glass fiber wear-resistant coating, the second zinc coating and the ceramic particle coating, the device can achieve the function of good corrosion resistance, and the problems that the prefabricated direct-buried heat-insulating steel pipe in the existing market does not have the function of good corrosion resistance, is influenced by the installation environment and a transmission medium in the use process, is easy to corrode, influences the service life of the steel pipe and is not beneficial to long-time use of a user are solved.
Description
Technical Field
The utility model relates to the technical field of prefabricated directly-buried heat-insulating steel pipes, in particular to a prefabricated directly-buried heat-insulating steel pipe with strong corrosion resistance.
Background
As an important building material in real life, a prefabricated direct-buried thermal insulation pipe is widely used in different building structures, which can effectively ensure the temperature of one place, the first layer of the prefabricated direct-buried thermal insulation pipe is a working steel pipe layer, which is designed according to the actual requirements of customers, the surface of the steel pipe is usually processed by a rust removal process and then processed or divided according to different grades, the second layer of the prefabricated direct-buried thermal insulation pipe is a thermal insulation layer, which is usually a high-pressure foaming machine, different foamed plastics are formed between the steel pipe and an outer layer, and then all raw liquids are injected into the steel pipe and the outer layer, so that the thermal insulation effect can be achieved, the third layer is a high-density polyethylene material, which is usually applied to the steel pipe, its main effect is exactly in order to protect the heat preservation of whole polyurethane insulating tube, avoids receiving the damage of other hard things and suffering the directness, and it can effectually play waterproof and radiation protection's effect in addition.
The prefabricated direct-buried heat insulation steel pipe in the existing market does not have the function of good corrosion resistance, is influenced by the installation environment and a transmission medium in the using process, is easy to corrode, influences the service life of the steel pipe, and is not beneficial to long-time use of a user.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a prefabricated directly-buried heat-insulating steel pipe with strong corrosion resistance, which has the advantage of good corrosion resistance, and solves the problems that the prefabricated directly-buried heat-insulating steel pipe in the existing market does not have the function of good corrosion resistance, is influenced by the installation environment and a transmission medium in the use process, is easy to corrode, influences the service life of the steel pipe and is not beneficial to long-time use of a user.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a prefabricated direct-burried insulating steel pipe that corrosion resistance is strong, includes the insulating tube body, the insulating tube body is including outer protection steel pipe, first polyethylene overcoat, polyurethane filling layer, second polyethylene overcoat and interior protection steel pipe, the outside of interior protection steel pipe is equipped with the second polyethylene overcoat, the outside fixedly connected with polyurethane filling layer of second polyethylene overcoat, the first polyethylene overcoat of outside fixedly connected with of polyurethane filling layer, the outside of first polyethylene overcoat is equipped with outer protection steel pipe, the outer surface fixedly connected with outer protective coating of outer protection steel pipe, inner surface fixedly connected with inner protective coating of interior protection steel pipe, outer protective coating is including first galvanizing coat and glass fiber wear-resistant coating, inner protective coating is including second galvanizing coat and ceramic particle coating.
Preferably, the glass fiber wear-resistant coating is positioned on the outer side of the first zinc coating layer, and the first zinc coating layer is positioned on the outer surface of the outer protective steel pipe.
Preferably, the ceramic particle coating is positioned on the outer side of the second zinc coating layer, and the second zinc coating layer is positioned on the inner surface of the inner protective steel pipe.
Preferably, the second polyethylene jacket and the inner protective steel pipe as well as the outer protective steel pipe and the first polyethylene jacket are bonded through environment-friendly glue.
Preferably, the thickness of the outer protective steel pipe and the thickness of the inner protective steel pipe are both 2mm, and the thickness of the first polyethylene jacket and the thickness of the second polyethylene jacket are both 3 mm.
Preferably, the thickness of the polyurethane filling layer is 35mm, and the thickness of the outer protective coating and the thickness of the inner protective coating are both 0.6 mm.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, through the heat-insulating pipe body, the first polyethylene outer sleeve, the outer protective coating, the second polyethylene outer sleeve, the inner protective coating, the first zinc coating, the glass fiber wear-resistant coating, the second zinc coating and the ceramic particle coating, the device can achieve the function of good corrosion resistance, and the problems that the prefabricated direct-buried heat-insulating steel pipe in the existing market does not have the function of good corrosion resistance, is influenced by the installation environment and a transmission medium in the use process, is easy to corrode, influences the service life of the steel pipe and is not beneficial to long-time use of a user are solved.
2. By using the zinc coating, the corrosion resistance of the steel pipe can be effectively improved, and the phenomenon that the service life is influenced by corrosion in the using process is avoided;
the wear-resisting performance of the outer protective steel pipe can be effectively improved by using the glass fiber wear-resisting coating, the outer surface of the outer protective steel pipe is prevented from being worn in the using process, the use safety of the first zinc coating is prevented from being influenced, the inner cavity of the inner protective steel pipe can be effectively prevented from being corroded when strong acid and alkali media are transmitted by using the ceramic particle coating, and the use safety of a pipeline is guaranteed;
by using the environment-friendly glue, harmful gas emission of equipment during use can be effectively avoided, and the use safety of a user is guaranteed;
the use protection capability of the steel pipe can be effectively ensured by determining the use thickness of the steel pipe, and the use strength of the pipeline is ensured;
by determining the use thickness of the protective coating, the protective capability of the protective coating can be effectively ensured, and the phenomenon that the pipeline is rusted after being used for a long time is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the outer protective coating of the present invention;
FIG. 3 is a schematic view of the structure of the inner protective coating of the present invention.
In the figure: 1. a thermal insulation pipe body; 2. an outer protective steel tube; 3. a first polyethylene jacket; 4. a polyurethane filler layer; 5. an outer protective coating; 6. a second polyethylene jacket; 7. an inner protective steel pipe; 8. an inner protective coating; 9. a first zinc plating layer; 10. a glass fiber wear-resistant coating; 11. a second zinc coating layer; 12. and (3) coating the ceramic particles.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be 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 in specific cases to those skilled in the art.
The heat preservation pipe body 1, the outer protection steel pipe 2, the first polyethylene outer sleeve 3, the polyurethane filling layer 4, the outer protection coating 5, the second polyethylene outer sleeve 6, the inner protection steel pipe 7, the inner protection coating 8, the first zinc coating 9, the glass fiber wear-resistant coating 10, the second zinc coating 11 and the ceramic particle coating 12 are all universal standard parts or parts known by technical personnel in the field, and the structure and the principle of the heat preservation pipe are known by technical manuals or conventional experimental methods.
Referring to fig. 1-3, a prefabricated directly-buried heat-insulating steel pipe with strong corrosion resistance comprises a heat-insulating pipe body 1, wherein the heat-insulating pipe body 1 comprises an outer protective steel pipe 2, a first polyethylene jacket 3, a polyurethane filling layer 4, a second polyethylene jacket 6 and an inner protective steel pipe 7, the thicknesses of the outer protective steel pipe 2 and the inner protective steel pipe 7 are both 2mm, the thicknesses of the first polyethylene jacket 3 and the second polyethylene jacket 6 are both 3mm, the use protective capability of the steel pipe can be effectively ensured by determining the use thickness of the steel pipe, the use strength of the pipeline is ensured, the second polyethylene jacket 6 is arranged on the outer side of the inner protective steel pipe 7, the space between the second polyethylene jacket 6 and the inner protective steel pipe 7 and the space between the outer protective steel pipe 2 and the first polyethylene jacket 3 are both bonded by environment-friendly glue, and the emission of harmful gas during the use of the equipment can be effectively avoided by using the environment-friendly glue, the use safety of a user is ensured, the outer side of the second polyethylene jacket 6 is fixedly connected with a polyurethane filling layer 4, the outer side of the polyurethane filling layer 4 is fixedly connected with a first polyethylene jacket 3, the outer side of the first polyethylene jacket 3 is provided with an outer protective steel pipe 2, the outer surface of the outer protective steel pipe 2 is fixedly connected with an outer protective coating 5, the inner surface of the inner protective steel pipe 7 is fixedly connected with an inner protective coating 8, the thickness of the polyurethane filling layer 4 is 35mm, the thickness of the outer protective coating 5 and the thickness of the inner protective coating 8 are both 0.6mm, the protective capability of the outer protective coating can be effectively ensured by determining the use thickness of the protective coating, the phenomenon that the pipeline is rusted after being used for a long time is avoided, the outer protective coating 5 comprises a first galvanized layer 9 and a glass fiber wear-resistant coating 10, the inner protective coating 8 comprises a second galvanized layer 11 and a ceramic particle coating 12, the glass fiber wear-resistant coating 10 is positioned on the outer side of the first galvanized layer 9, first galvanizing coat 9 is located outer protection steel pipe 2's surface, ceramic particle coating 12 is located the outside of second galvanizing coat 11, second galvanizing coat 11 is located inner protection steel pipe 7's internal surface, use through the galvanizing coat, can effectively promote the corrosion resistance of steel pipe, avoid it to appear corroding the phenomenon that influences life in the use, use through glass fiber wear-resistant coating 10, can effectively promote outer protection steel pipe 2's wear resistance, avoid it wearing and tearing to appear in the external surface in the use, influence first galvanizing coat 9's safety in utilization, use through ceramic particle coating 12, the inner chamber that can effectively avoid inner protection steel pipe 7 appears corroding when transmitting acid-base strong medium, the safety in utilization of pipeline has been ensured.
When in use, the corrosion resistance of the steel pipe can be effectively improved through the use of the zinc coating, the phenomenon that the service life is influenced by corrosion in the use process is avoided, the wear resistance of the outer protective steel pipe 2 can be effectively improved through the use of the glass fiber wear-resistant coating 10, the abrasion on the outer surface of the steel pipe in the use process is avoided, the use safety of the first zinc coating 9 is influenced, the corrosion of the inner cavity of the inner protective steel pipe 7 in the transmission of strong acid and alkali media can be effectively avoided through the use of the ceramic particle coating 12, the use safety of the pipeline is ensured, the emission of harmful gas in the use process of equipment can be effectively avoided through the use of the environment-friendly glue, the use safety of a user is ensured, the use protection capability of the steel pipe can be effectively ensured through the determination of the use thickness of the steel pipe, the use strength of the pipeline is ensured, and the use thickness of the protective coating is determined, can effectively ensure its protective capacities, avoid the pipeline to use the phenomenon that the corrosion appears for a long time, cooperation through above-mentioned structure can make the device reach the function that corrosion resistance is good, has solved prefabricated direct-burried heat preservation steel pipe on the current market and has not possessed the function that corrosion resistance is good, receives the influence of installation environment and transmission medium in the use, and its life is influenced in the steel pipe perishable problem that is unfavorable for the long-time use of user.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a prefabricated direct-burried heat preservation steel pipe that corrosion resisting property is strong, includes insulating tube body (1), its characterized in that: the heat preservation pipe body (1) comprises an outer protection steel pipe (2), a first polyethylene outer sleeve (3), a polyurethane filling layer (4), a second polyethylene outer sleeve (6) and an inner protection steel pipe (7), wherein the second polyethylene outer sleeve (6) is arranged on the outer side of the inner protection steel pipe (7), the polyurethane filling layer (4) is fixedly connected on the outer side of the second polyethylene outer sleeve (6), the first polyethylene outer sleeve (3) is fixedly connected on the outer side of the polyurethane filling layer (4), the outer protection steel pipe (2) is arranged on the outer side of the first polyethylene outer sleeve (3), an outer protection coating (5) is fixedly connected on the outer surface of the outer protection steel pipe (2), an inner protection coating (8) is fixedly connected on the inner surface of the inner protection steel pipe (7), and the outer protection coating (5) comprises a first zinc-coated layer (9) and a glass fiber wear-resistant coating (10), the inner protective coating (8) comprises a second zinc coating (11) and a ceramic particle coating (12).
2. The prefabricated direct-buried heat-insulation steel pipe with strong corrosion resistance as recited in claim 1, characterized in that: the glass fiber wear-resistant coating (10) is positioned on the outer side of the first zinc coating (9), and the first zinc coating (9) is positioned on the outer surface of the outer protective steel pipe (2).
3. The prefabricated direct-buried heat-insulation steel pipe with strong corrosion resistance as recited in claim 1, characterized in that: the ceramic particle coating (12) is positioned on the outer side of the second zinc coating (11), and the second zinc coating (11) is positioned on the inner surface of the inner protective steel pipe (7).
4. The prefabricated direct-buried heat-insulation steel pipe with strong corrosion resistance as recited in claim 1, characterized in that: and the second polyethylene jacket (6) and the inner protective steel pipe (7) as well as the outer protective steel pipe (2) and the first polyethylene jacket (3) are bonded through environment-friendly glue.
5. The prefabricated direct-buried heat-insulation steel pipe with strong corrosion resistance as recited in claim 1, characterized in that: the thickness of outer protection steel pipe (2) and interior protection steel pipe (7) is 2mm, the thickness of first polyethylene overcoat (3) and second polyethylene overcoat (6) is 3 mm.
6. The prefabricated direct-buried heat-insulation steel pipe with strong corrosion resistance as recited in claim 1, characterized in that: the thickness of the polyurethane filling layer (4) is 35mm, and the thickness of the outer protective coating (5) and the thickness of the inner protective coating (8) are both 0.6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994080.9U CN216143303U (en) | 2021-08-24 | 2021-08-24 | Prefabricated direct-burried insulation steel pipe that corrosion resistance is strong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994080.9U CN216143303U (en) | 2021-08-24 | 2021-08-24 | Prefabricated direct-burried insulation steel pipe that corrosion resistance is strong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216143303U true CN216143303U (en) | 2022-03-29 |
Family
ID=80807411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121994080.9U Expired - Fee Related CN216143303U (en) | 2021-08-24 | 2021-08-24 | Prefabricated direct-burried insulation steel pipe that corrosion resistance is strong |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216143303U (en) |
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2021
- 2021-08-24 CN CN202121994080.9U patent/CN216143303U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220607 Address after: 150089 Hong Qi Xiang Xu Guang Cun, Nangang District, Harbin City, Heilongjiang Province Patentee after: Harbin Lianxin thermal insulation engineering Co.,Ltd. Address before: 341099 room 1516, 15 / F, personnel building, No. 105, Wenming Avenue, Zhanggong District, Ganzhou City, Jiangxi Province Patentee before: Liu Jie |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220329 |