CN220286741U - Large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe - Google Patents
Large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe Download PDFInfo
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- CN220286741U CN220286741U CN202320762434.XU CN202320762434U CN220286741U CN 220286741 U CN220286741 U CN 220286741U CN 202320762434 U CN202320762434 U CN 202320762434U CN 220286741 U CN220286741 U CN 220286741U
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- bent pipe
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- 238000009413 insulation Methods 0.000 title claims abstract description 19
- 238000005260 corrosion Methods 0.000 claims abstract description 31
- 229920000742 Cotton Polymers 0.000 claims abstract description 17
- 238000004321 preservation Methods 0.000 claims description 13
- 239000011490 mineral wool Substances 0.000 claims description 7
- 229920002943 EPDM rubber Polymers 0.000 claims description 6
- 239000004429 Calibre Substances 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 3
- 238000009933 burial Methods 0.000 claims 2
- 230000008602 contraction Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000012791 sliding layer Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Thermal Insulation (AREA)
Abstract
The utility model discloses a large-caliber high-temperature-resistant prefabricated directly-buried heat-insulating bent pipe, which comprises a large-caliber directly-buried bent pipe, wherein an anti-corrosion shell pipe is arranged on the outer wall of the large-caliber directly-buried bent pipe, heat-insulating cotton is filled between the outer wall of the large-caliber directly-buried bent pipe and the inner wall of the anti-corrosion shell pipe, an elastic connecting column is fixedly arranged between the outer wall of the large-caliber directly-buried bent pipe and the inner wall of the anti-corrosion shell pipe, a first flange plate is fixedly arranged on the outer wall of each of two ends of the anti-corrosion shell pipe, a second flange plate is arranged on one side of the first flange plate, a lantern ring is fixedly arranged in the middle of the outer surface of one side of the second flange plate, the lantern ring is movably sleeved on the outer wall of the large-caliber directly-buried bent pipe, the inner wall of the lantern ring is tightly attached to the outer wall of the large-caliber directly-buried bent pipe, and one end of the anti-corrosion shell pipe is conveniently plugged. The large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe has the advantages of high temperature resistance, convenience in adapting to thermal expansion and cold contraction, long service life and the like.
Description
Technical Field
The utility model relates to the technical field of large-caliber prefabricated directly-buried heat-insulating bent pipes, in particular to a large-caliber high-temperature-resistant prefabricated directly-buried heat-insulating bent pipe.
Background
In the prior art, a heat-insulating pipe with a hard polyurethane heat-insulating layer wrapped outside a steel pipe is mostly adopted, the heat-insulating pipe with the structure cannot resist high temperature and can only be used for conveying hot water below 100 ℃, the requirement of conveying high-temperature media such as steam or heat conduction oil cannot be met, CN106764125A discloses a directly buried steam precast spherical silicon composite anti-corrosion heat-insulating pipe, the heat-insulating pipe comprises a steel pipe, a sliding layer is arranged outside the steel pipe, a spherical silicon composite anti-corrosion heat-insulating material layer is arranged outside the sliding layer, a hard polyurethane layer is arranged outside the spherical silicon composite anti-corrosion heat-insulating material layer, and a protective layer is arranged outside the hard polyurethane layer; the sliding layer is made of aluminum silicate felt; the material of the protective layer is high-density polyethylene, and the heat-insulating pipe can improve the high temperature resistance of the pipeline, but when a high-temperature medium is conveyed, the thermal expansion coefficients of the steel pipe, the spherical silicon composite anti-corrosion heat-insulating material layer and the hard polyurethane layer are different, so that the spherical silicon composite anti-corrosion heat-insulating material layer and the hard polyurethane layer are easy to crack when the pipeline conveys the high-temperature medium, the heat-insulating effect is affected, and when the protective layer is damaged, water in the buried layer can be directly immersed into the heat-insulating pipe until the outer wall of the steel pipe corrodes the steel pipe, the service life of the heat-insulating pipe is shortened, and certain adverse effects are brought to the use process of people.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe, which has the advantages of high temperature resistance, convenient adaptation to thermal expansion and cold contraction, long service life and the like, and can effectively solve the problems in the background art.
(II) technical scheme
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a prefabricated direct buries heat preservation return bend of heavy-calibre high temperature resistant, includes the direct buries return bend of big diameter, the outer wall of the direct buries the return bend of big diameter is provided with anticorrosive shell pipe, just fill between the outer wall of the direct buries the return bend of big diameter and the inner wall of anticorrosive shell pipe has the heat preservation cotton, fixed mounting has the elastic connection post between the outer wall of the direct buries the return bend of big diameter and the inner wall of anticorrosive shell pipe, just the outer wall fixed mounting at anticorrosive shell pipe both ends has first ring flange, one side of first ring flange is provided with the second ring flange, just the middle part fixed mounting of second ring flange one side surface has the lantern ring.
Preferably, the lantern ring is movably sleeved on the outer wall of the large-caliber directly-buried elbow, and the inner wall of the lantern ring is tightly attached to the outer wall of the large-caliber directly-buried elbow, so that one end of the anti-corrosion shell pipe is conveniently plugged, and the heat preservation cotton is prevented from being exposed outside.
Preferably, a fixing bolt is arranged between the second flange plate and the first flange plate, and the second flange plate is fixedly connected with the first flange plate through the fixing bolt, so that the second flange plate and the first flange plate are convenient to connect and fix.
Preferably, the heat-insulating cotton is made of rock wool, so that the high-temperature resistance of the heat-insulating cotton is improved.
Preferably, the elastic connecting column is fixedly arranged between the inside of the anti-corrosion shell pipe and the outer wall of the large-caliber directly-buried bent pipe, the elastic connecting column is made of ethylene propylene diene monomer rubber, and the ethylene propylene diene monomer rubber is formed by solution copolymerization of ethylene and propylene, so that the anti-corrosion shell pipe is convenient to adapt to thermal expansion and cold contraction.
Preferably, the gap between the inside of the anti-corrosion shell pipe and the inner wall of the large-caliber directly-buried bent pipe is eight to ten centimeters, so that the thickness of heat preservation cotton is increased, and the heat preservation property is improved.
(III) beneficial effects
Compared with the prior art, the utility model provides the large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe, which has the following beneficial effects:
1. this large-caliber high temperature resistant prefabricated directly buried heat preservation return bend, through first ring flange, lantern ring and the second ring flange that set up, be convenient for seal the one end of anticorrosive shell pipe, avoid the inside heat preservation cotton of anticorrosive shell pipe to expose in the outside.
2. This prefabricated direct buries heat preservation return bend of heavy-calibre high temperature resistant, through the heat preservation cotton that sets up, the cotton material of heat preservation is rock wool, high temperature resistant, long service life, and through the elastic connection post that sets up, be convenient for adapt to expend with heat and contract with cold, increase life.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe.
FIG. 2 is a schematic diagram of a partial structure of a large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe.
Fig. 3 is a schematic structural view of a collar and a second flange in a large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe.
FIG. 4 is a side cross-sectional view of a large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe.
In the figure: 1. a large-caliber direct-buried bent pipe; 2. an anti-corrosion housing tube; 3. a first flange; 4. a collar; 5. a second flange; 6. thermal insulation cotton; 7. and an elastic connecting column.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
The embodiment is a large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe.
As shown in fig. 1-4, the anti-corrosion pipe comprises a large-caliber direct-buried bent pipe 1, wherein an anti-corrosion shell pipe 2 is arranged on the outer wall of the large-caliber direct-buried bent pipe 1, heat preservation cotton 6 is filled between the outer wall of the large-caliber direct-buried bent pipe 1 and the inner wall of the anti-corrosion shell pipe 2, an elastic connecting column 7 is fixedly arranged between the outer wall of the large-caliber direct-buried bent pipe 1 and the inner wall of the anti-corrosion shell pipe 2, a first flange plate 3 is fixedly arranged on the outer wall of two ends of the anti-corrosion shell pipe 2, a second flange plate 5 is arranged on one side of the first flange plate 3, and a lantern ring 4 is fixedly arranged in the middle of the outer surface of one side of the second flange plate 5.
The lantern ring 4 is movably sleeved on the outer wall of the large-caliber directly-buried elbow 1, and the inner wall of the lantern ring 4 is tightly attached to the outer wall of the large-caliber directly-buried elbow 1; a fixing bolt is arranged between the second flange plate 5 and the first flange plate 3, and the second flange plate 5 is fixedly connected with the first flange plate 3 through the fixing bolt; the heat-insulating cotton 6 is made of rock wool; the elastic connecting column 7 is fixedly arranged between the inside of the anti-corrosion shell tube 2 and the outer wall of the large-caliber directly-buried bent tube 1, the elastic connecting column 7 is made of ethylene propylene diene monomer, and the ethylene propylene diene monomer is rubber formed by solution copolymerization of ethylene and propylene; the clearance between the inside of the anti-corrosion shell pipe 2 and the inner wall of the large-caliber directly-buried bent pipe 1 is eight to ten centimeters.
It should be noted that the utility model is a large-caliber high-temperature-resistant prefabricated directly-buried heat-insulating bent pipe, the protection effect is improved through the arranged anti-corrosion shell pipe 2, heat-insulating cotton 6 is filled between the outer wall of the large-caliber directly-buried bent pipe 1 and the inner wall of the anti-corrosion shell pipe 2, the heat-insulating cotton 6 is made of rock wool, the rock wool is high-temperature-resistant by 600 ℃, the rock wool board has excellent fireproof, heat-insulating and sound-absorbing properties, the effect of noise reduction can be achieved, the high temperature resistance can be achieved, the elastic connecting column 7 is provided with certain elasticity, the adaptation to thermal expansion and contraction are convenient, the service life is prolonged, and the heat-insulating cotton 6 is prevented from being exposed to the outside through the arranged first flange 3, the lantern ring 4 and the second flange 5.
It should be noted that in this document, relational terms such as first and second (first and second), and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. The utility model provides a prefabricated direct burial heat preservation return bend of heavy-calibre high temperature resistant, includes big diameter direct burial return bend (1), its characterized in that: the anti-corrosion pipe is characterized in that an anti-corrosion shell pipe (2) is arranged on the outer wall of the large-caliber directly-buried bent pipe (1), heat preservation cotton (6) is filled between the outer wall of the large-caliber directly-buried bent pipe (1) and the inner wall of the anti-corrosion shell pipe (2), an elastic connecting column (7) is fixedly installed between the outer wall of the large-caliber directly-buried bent pipe (1) and the inner wall of the anti-corrosion shell pipe (2), a first flange plate (3) is fixedly installed on the outer wall of two ends of the anti-corrosion shell pipe (2), a second flange plate (5) is arranged on one side of the first flange plate (3), and a lantern ring (4) is fixedly installed in the middle of the outer surface of one side of the second flange plate (5).
2. The large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe according to claim 1, wherein the bent pipe is characterized in that: the lantern ring (4) is movably sleeved on the outer wall of the large-caliber directly-buried elbow (1), and the inner wall of the lantern ring (4) is tightly attached to the outer wall of the large-caliber directly-buried elbow (1).
3. The large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe according to claim 2, wherein the heat-insulation bent pipe is characterized in that: and a fixing bolt is arranged between the second flange plate (5) and the first flange plate (3), and the second flange plate (5) is fixedly connected with the first flange plate (3) through the fixing bolt.
4. The large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe according to claim 3, wherein the heat-insulation bent pipe is characterized in that: the heat-insulating cotton (6) is made of rock wool.
5. The large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe according to claim 4, wherein the heat-insulation bent pipe is characterized in that: the elastic connecting column (7) is fixedly arranged between the inside of the anti-corrosion shell tube (2) and the outer wall of the large-caliber directly-buried bent tube (1), the elastic connecting column (7) is made of ethylene propylene diene monomer rubber, and the ethylene propylene diene monomer rubber is formed by solution copolymerization of ethylene and propylene.
6. The large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe as claimed in claim 5, wherein: the gap between the inside of the anti-corrosion shell tube (2) and the inner wall of the large-caliber directly-buried bent tube (1) is eight to ten centimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320762434.XU CN220286741U (en) | 2023-04-10 | 2023-04-10 | Large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320762434.XU CN220286741U (en) | 2023-04-10 | 2023-04-10 | Large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220286741U true CN220286741U (en) | 2024-01-02 |
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ID=89331850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320762434.XU Active CN220286741U (en) | 2023-04-10 | 2023-04-10 | Large-caliber high-temperature-resistant prefabricated directly-buried heat-insulation bent pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220286741U (en) |
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2023
- 2023-04-10 CN CN202320762434.XU patent/CN220286741U/en active Active
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