CN211624604U - Energy-saving prefabricated overhead composite heat-insulating pipe and pipe bracket thereof - Google Patents
Energy-saving prefabricated overhead composite heat-insulating pipe and pipe bracket thereof Download PDFInfo
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- CN211624604U CN211624604U CN202020123256.2U CN202020123256U CN211624604U CN 211624604 U CN211624604 U CN 211624604U CN 202020123256 U CN202020123256 U CN 202020123256U CN 211624604 U CN211624604 U CN 211624604U
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Abstract
The utility model relates to the technical field of heat preservation pipes, in particular to an energy-saving prefabricated overhead composite heat preservation pipe and a pipe bracket thereof; the heat preservation pipe is formed by coating A multilayer structure and comprises an inner pipe arranged at the innermost layer and A metal outer protection pipe arranged at the outermost layer, wherein A reflective heat insulation film, A hard heat insulation tile, A TR-A nano heat insulation coating and A polyurethane foam layer are sequentially coated from the inner pipe to the metal outer protection pipe; the pipe bracket is laid on the surface of the inner pipe and is connected with the metal outer protective pipe; the energy-saving prefabricated overhead composite heat-insulating pipe prepared by the utility model has obvious heat-insulating effect, low application cost on a direct-buried heat-insulating pipe and a prefabricated overhead heat-insulating pipe, short production period, convenient construction, less heat loss of a pipeline, and the environment temperature test of the surface of the metal outer protecting pipe is less than or equal to 50 ℃, thereby achieving the purpose of heat insulation; the utility model discloses when the conduit saddle of preparation carries out the fixed operation, only need to rotate rotatory buckle and can lock whole device, simplified the fixed operation degree of difficulty.
Description
Technical Field
The utility model relates to a thermal insulation pipe technical field specifically relates to a compound insulating tube and conduit saddle are maked somebody a mere figurehead to energy-saving prefabrication.
Background
With the development of the centralized heat supply engineering in cities and towns in China, particularly the rapid development of cogeneration, the construction of the heat-insulating high-temperature pipeline engineering enters a new development stage and a high tide stage.
At present, the novel internal prefabricated overhead heat-insulating pipe is to prevent the damage of scraping the hard heat-insulating layer caused by the relative displacement between the internal working steel pipe and the hard heat-insulating layer through wrapping up a soft heat-insulating layer or coating a lubricating layer on the surface of the internal working steel pipe, and then is wrapped up and coated with foil glass fiber cloth to reduce radiation heat conduction. The soft heat-insulating layer is generally made of aerogel felt and magnesium silicate heat-insulating felt, the hard heat-insulating layer is generally made of double-layer microporous calcium silicate tiles which are overlapped and bound, and finally polyurethane is used for pouring and foaming and is combined with the metal outer protective pipe into a whole.
However, the heat-insulating laying method is easy to lead the soft heat-insulating layer, foil glass fiber cloth and the hard heat-insulating layer to be bound by lead wires, so that the method has the disadvantages of more joints, high labor intensity, long manufacturing period and rising cost; moreover, the seams are prone to heat leakage between the seams.
In addition, in order to meet the heat preservation requirement that the external surface of the metal outer protective pipe contains ambient temperature and is not more than 55 degrees, the existing novel prefabricated overhead heat preservation pipe has the phenomena of over-thick heat preservation layer and large and bulky volume.
In addition, the existing heat preservation pipe bracket is fixedly connected by screws, when the heat preservation pipe is fixed at a high position, an operator is required to tighten the screws at the high position, the operation is complex and unsafe, the working efficiency is reduced, and meanwhile, the operation risk is increased.
In summary, it is urgently needed to design a heat preservation pipe with good heat preservation effect, small pipe diameter and stable structure, and a pipe bracket which is matched with the heat preservation pipe and is convenient for fixing operation.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides an energy-saving prefabricated overhead composite heat-insulating pipe which has good heat-insulating and heat-preserving effects, high shearing strength of an inner pipe and a metal outer protecting pipe, can reduce the pipe diameter of the metal outer protecting pipe to the maximum extent, saves the investment cost, has good structural stability, and has the appearance with the environmental temperature not more than 50 ℃; and a pipe bracket convenient for fixing operation. The specific technical scheme is as follows:
an energy-saving prefabricated overhead composite heat-insulating pipe and a pipe bracket thereof are composed of a heat-insulating pipe and a pipe bracket.
The heat preservation pipe is composed of A multilayer structure in A coating mode, and comprises an inner pipe arranged on the innermost layer and an outer metal protection pipe arranged on the outermost layer, wherein A reflective heat insulation film, A hard heat insulation tile, A TR-A nano heat insulation coating and A polyurethane foam layer are sequentially coated on the inner pipe in the direction from the inner pipe to the outer metal protection pipe.
The pipe bracket is laid on the surface of the inner pipe and connected with the metal outer protecting pipe, the relative positions of the inner pipe and the metal outer protecting pipe are stable, and the connecting strength is high, so that the running safety of the heat-insulating pipeline is greatly improved.
The pipe bracket consists of an upper pipe bracket and a lower pipe bracket, one end of the upper pipe bracket is hinged with one end of the lower pipe bracket through a rotating shaft I, and the other end of the upper pipe bracket and the other end of the lower pipe bracket can be fixed and separated through a rotating buckle; therefore, when the pipe bracket is fixed, the fixing operation can be finished only by rotating the rotary buckle; because go up the conduit saddle and the outer effort that the conduit saddle was come from the insulating tube when fixed down, be in "the state of being strutted", consequently rotatory buckle can accomplish self-locking through its special structural design under the effect of this external force, when simplifying the fixed operation degree of difficulty, has strengthened structural stability.
Furthermore, the thickness of the reflective heat insulation film is 3mm, the thickness of the hard heat insulation tile is 100mm, the thickness of the TR-350A nanometer heat insulation layer is 10mm, the thickness of the polyurethane foam layer is 23mm, and the thickness of the metal outer protective pipe is 1 mm.
The reflective heat insulating film can shield part of the heat transferred from the inner pipe, thereby reducing the heat transfer efficiency from the inner pipe to the outer pipe.
The hard heat insulation tile, the TR-A nanometer heat insulation coating and the polyurethane foam layer have excellent heat insulation characteristics, so that the inner pipe is more comprehensively and multi-level insulated, and heat loss is reduced. The TR-A nano heat insulation coating has excellent adhesiveness, so that the reflective heat insulation film, the hard heat insulation tile, the TR-A nano heat insulation coating and the polyurethane foam layer form A whole, and the structure stability is good.
Furthermore, the rotary buckle is composed of a positioning rod arranged on the upper pipe support, a connecting seat arranged on the lower pipe support and a rotary ring which is rotatably connected with the connecting seat through a second rotary shaft; the fixing and the separation between the positioning rod and the connecting seat can be controlled by rotating the rotating ring.
Furthermore, a convex groove is formed in the inner wall of the rotating ring, and a groove matched with the convex groove is formed in the positioning rod; the convex groove and the concave groove are mutually matched, so that the phenomenon that the rotating ring is loosened in a fixed state to influence the stability of the whole structure can be prevented.
Furthermore, the connecting seat is provided with a limiting block which has a positioning function on the rotating ring, and the rotating angle of the rotating ring can be limited, so that the rotating ring is positioned at the optimal position.
Further, the inner walls of the upper pipe support and the lower pipe support are provided with heat insulation layers for reducing heat loss at the joint of the heat insulation pipe and the pipe support.
Compare with current insulating tube and conduit saddle thereof, the beneficial effects of the utility model are that:
(1) compared with the prior art, the utility model discloses a heat preservation of insulating tube not only structural stability is high, and joint strength is big between inner tube and the outer pillar of metal moreover, and the insulating tube is difficult for taking place to warp.
(2) The utility model discloses a thermal-insulated heat preservation pipe adopts TR-350A nanometer thermal-insulated heat preservation coating, only needs the spraying at the thermal-insulated tile surface of stereoplasm, has reduced the seam, has reduced intensity of labour, has shortened production cycle.
(3) The utility model discloses a thermal-insulated pipe adopts reflection heat insulation membrane, stereoplasm heat insulation tile, TR-350A nanometer heat insulation coating, polyurethane foam layer inter combination composite heat preservation, can carry out multi-level efficient heat insulation to the inner tube, and the holistic heat preservation effect of thermal-insulated pipe has obtained obvious promotion, and the inner tube weakens to the heat transfer of outer tube by a wide margin to the apparent temperature of metal outer casing can be controlled effectively, and the outward appearance contains ambient temperature and is less than or equal to 50 ℃.
(4) The utility model discloses a conduit saddle when carrying out the fixed operation, only need rotate rotatory buckle and can lock whole device, when simplifying the fixed operation degree of difficulty, has strengthened the structural stability of device.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic structural view of the heat preservation pipe of the present invention;
fig. 4 is a schematic structural view of the pipe bracket of the present invention;
fig. 5 is a schematic structural view of the rotary buckle of the present invention.
In the figure: 1-heat preservation pipe, 11-working steel pipe, 12-reflection heat insulation film, 13-hard heat preservation tile, 14-TR-350A nanometer heat insulation coating, 15-polyurethane foam heat preservation layer, 16-metal outer protecting pipe, 2-pipe bracket, 21-upper pipe bracket, 22-lower pipe bracket, 23-rotating shaft I, 24-rotating buckle, 241-connecting seat, 242-rotating shaft II, 243-rotating ring, 2431-convex groove, 244-positioning rod, 2441-groove, 245-limiting block and 25-heat preservation layer.
Detailed Description
To further illustrate the manner in which the present invention is made and the effects obtained, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example one
As shown in fig. 1 and 2, an energy-saving prefabricated overhead composite heat-insulating pipe and a pipe bracket thereof are composed of a heat-insulating pipe 1 and a pipe bracket 2.
As shown in fig. 3, the thermal insulation pipe 1 is formed by coating a multilayer structure, and includes an inner pipe 11 disposed at the innermost layer and an outer metal pipe 16 disposed at the outermost layer, and a reflective thermal insulation film 12, a hard thermal insulation tile 13, a TR-350A nano thermal insulation coating 14 and a polyurethane foam layer 15 are sequentially coated from the inner pipe 11 to the outer metal pipe 16.
The pipe bracket 2 is laid on the surface of the inner pipe 11 and connected with the metal outer protection pipe 16, the relative positions of the inner pipe 11 and the metal outer protection pipe 16 are stable, and the connection strength is high, so that the operation safety of the heat preservation pipeline is greatly improved.
As shown in fig. 4, the pipe bracket 2 is composed of an upper pipe bracket 21 and a lower pipe bracket 22, one end of the upper pipe bracket 21 is hinged to one end of the lower pipe bracket 22 through a first rotating shaft 23, and the other end of the upper pipe bracket 21 can be fixed and separated through a rotating buckle 24; therefore, when the pipe bracket is fixed, the fixing operation can be finished only by rotating the rotary buckle 24; because the upper pipe bracket 21 and the lower pipe bracket 22 are always subjected to the external acting force from the insulating pipe 1 and are in the 'stretched' state when being fixed, the rotary buckle 24 can be self-locked through the special structural design under the action of the external force, the difficulty of the fixing operation is simplified, and the structural stability is enhanced.
The thickness of the reflective heat insulation film 12 is 3mm, the thickness of the hard heat insulation tile 13 is 100mm, the thickness of the TR-350A nanometer heat insulation coating 14 is 10mm, the thickness of the polyurethane foam layer 15 is 23mm, and the thickness of the metal outer protective pipe is 16 mm.
The reflective insulating film 12 shields a portion of the inner tube from heat transfer, thereby reducing the efficiency of heat transfer from the inner tube to the outer tube.
The hard heat insulation tile 13, the TR-350A nanometer heat insulation coating 14 and the polyurethane foam layer 15 all have excellent heat insulation characteristics, so that the inner pipe is more comprehensively and multi-level insulated, and heat loss is reduced.
The TR-350A nano heat insulation coating 14 has excellent adhesion, so that the reflective heat insulation film 12, the hard heat insulation tile 13, the TR-350A nano heat insulation coating 14 and the polyurethane foam layer 15 form a whole, and the structural stability is good.
As shown in fig. 4 and 5, the rotary buckle 24 is composed of a positioning rod 244 disposed on the upper pipe support 21, a connecting seat 241 disposed on the lower pipe support 22, and a rotary ring 243 rotatably connected with the connecting seat 241 through a second rotary shaft 242; the fixing and separating between the positioning rod 244 and the connecting seat 241 can be controlled by rotating the rotating ring 243.
A convex groove 2431 is formed in the inner wall of the rotating ring 243, and a groove 2441 matched with the convex groove 2431 is formed in the positioning rod 244; the convex groove 2431 and the concave groove 2441 are mutually matched, so that the rotating ring 243 can be prevented from being loosened in a fixed state, and the stability of the whole structure is influenced.
The connecting seat 241 is provided with a limiting block 245 having a function of positioning the rotating ring 243, which can limit the rotating angle of the rotating ring 243, so that the rotating ring is located at an optimal position.
And the inner walls of the upper pipe support 21 and the lower pipe support 22 are provided with heat insulation layers 25 respectively, so that the heat loss at the joint of the heat insulation pipe 1 and the pipe support 2 is reduced.
Example two
In the second embodiment, the properties of the inner pipe 11 used for the heat-insulating pipe 1 are mainly described, and the chemical composition and physical properties thereof are shown in table 1 and table 2, respectively.
TABLE 1 chemical composition of inner tube 11
| Chemical composition | Percent (%) |
| C | 0.21 |
| Si | 0.25 |
| Mn | 0.60 |
| P | 0.002 |
| S | 0.007 |
| Cr | 0.04 |
| Ni | 0.01 |
| Mo | 0.002 |
| Cu | 0.02 |
| Al | 0.029 |
| V | 0.002 |
| Ti | 0.002 |
TABLE 2 physical Properties of the inner tube 11
| Tensile strength(Mpa) | 482/482 |
| Yield (Mpa) | 295/306 |
| Elongation (%) | 32/32.5 |
EXAMPLE III
In the third embodiment, the performance of the reflective insulation film 12 used for the thermal insulating tube 1 will be mainly described, and specific values thereof are shown in table 3.
TABLE 3 physical Properties of reflective insulation film 12
Example four
The fourth example is mainly to explain the performance of the hard thermal insulation tiles 13 used in the thermal insulation pipe 1, and specific values thereof are shown in table 4.
TABLE 4 physical Properties of the rigid insulating tiles 13
TABLE 4 physical Properties of polyurethane foam insulation 15
EXAMPLE five
The fifth embodiment mainly illustrates the performance and beneficial effects of the TR-350A nano thermal insulation coating 14 adopted by the thermal insulation pipe 1, the product performance is shown in table 5, and the thermal insulation effect is shown in table 6.
TABLE 5 TR-350A thermal insulating nano-coating 14 Properties
TABLE 6 TR-350A thermal insulation effect test of the nanometer thermal insulation coating 14
EXAMPLE six
The sixth embodiment mainly explains the properties of the polyurethane foam insulation layer 15 used for the insulation pipe 1, and specific numerical values thereof are shown in table 7.
TABLE 7 physical Properties of polyurethane foam insulation layer 15
| Item | Unit of | Numerical value |
| Density of | g/m3 | A:1.02 B:1.15 |
| Viscosity of the oil | mPa..s | A:850 B:1100 |
| Solids content | ％ | 100 |
| Drying time | s | Surface stem 90 solid stem 120 |
EXAMPLE seven
The seventh embodiment mainly illustrates the properties of the metal outer sheath 16 used in the insulating tube 1, and the chemical composition and physical properties thereof are shown in table 8 and table 9, respectively.
TABLE 8 chemical composition of metallic outer jacket 16
TABLE 9 physical Properties of the metallic outer jacket 16
| Tensile strength (Mpa) | 407 |
| Yield (Mpa) | 271 |
| Elongation (%) | 34 |
Application example one
The application example mainly analyzes the advantages of the TR-350A nano heat-insulating coating 14 in the application of the direct-buried heat-insulating pipeline:
the specification model is phi 219 x 6/phi 530 x 10, and the price per meter of the external protecting steel pipe phi 530 x 10 is 550 yuan. The price per meter of the heat-preservation aluminum silicate cotton with the thickness of 50mm and the two layers of high-temperature glass cotton with the thickness of 50mm and 40mm is 160 yuan. The price of the external protection pipe for corrosion prevention per meter is 70 yuan. The civil engineering excavation cost of the pipe trench is 166 yuan per meter. The price of the repaired mouth of the outer protective pipe per meter is 100 yuan, and the total amount is 1040 yuan.
The cost of the outer protective pipe phi 273 x 7 per meter is 170 yuan, the thickness of the heat insulation coating is 10mm, the cost per meter is 375 yuan, the outer protective pipe resists corrosion per meter, and the cost per meter for excavating the pipe trench civil engineering cost is 126 yuan. The price per meter of the repaired mouth welding of the outer protecting pipe is 50 yuan, and the total is as follows: 756 yuan.
The integrated cost is 284 yuan. The cost is saved by about 27 percent. And the manufacturing cycle is broken, and only spraying is needed.
Application example two
The application example mainly analyzes the advantages of the heat preservation pipe 1 in the application of the direct-buried heat preservation pipeline:
the specification of a prefabricated overhead heat-insulating pipeline of DN400 is 400 × 12/900 × 0.6, while the specification of the practical energy-saving prefabricated overhead composite heat-insulating pipe of the invention is 400 × 12/700 × 0.6, and the diameter of the outer protecting pipe is reduced from 900mm to 700 mm;
compared with a 400 × 12/900 × 0.6 prefabricated overhead heat-insulation pipeline, the cost is 723 yuan/m by foaming 200mm of microporous calcium silicate and 31mm of polyurethane; the cost of the outer protecting pipe 900 x 0.6 is 88 yuan/meter; the weight of the pipeline is 230 kg/m, and the overhead buttress cost is 322 yuan/m; artificial 220 yuan/m. A total of 1353 yuan/m.
400 × 12/700 × 0.6 prefabricated overhead heat-insulating pipeline is insulated according to 100mmTR-350A nanometer heat-insulating coating, 100mm micropore calcium silicate and 31mm polyurethane foaming, and the cost is 790 yuan/meter; the cost of the outer protecting pipe 700 is 0.6 yuan/meter; the weight of the pipeline is 170 kg/m, and the overhead buttress cost is 238 yuan/m; the artificial 180 yuan/m. The total is 1276 yuan/m.
Adopt the utility model discloses the insulating tube 1 of making, comprehensive cost differs 77 yuan, consequently has better economic benefits.
Claims (6)
1. An energy-saving prefabricated overhead composite heat-insulating pipe and a pipe bracket thereof are characterized by consisting of a heat-insulating pipe (1) and a pipe bracket (2);
the heat-insulating pipe (1) is formed by coating a multilayer structure and comprises an inner pipe (11) arranged at the innermost layer and an outer metal pipe (16) arranged at the outermost layer, wherein a reflective heat-insulating film (12), a hard heat-insulating tile block (13), a TR-350A nano heat-insulating coating (14) and a polyurethane foam layer (15) are sequentially coated from the inner pipe (11) to the outer metal pipe (16);
the pipe bracket (2) is laid on the surface of the inner pipe (11) and is connected with the metal outer protective pipe (16); the pipe bracket (2) is composed of an upper pipe bracket (21) and a lower pipe bracket (22), one end of the upper pipe bracket (21) and one end of the lower pipe bracket (22) are hinged through a first rotating shaft (23), and the other end of the upper pipe bracket and the lower pipe bracket can be fixed and separated through a rotating buckle (24).
2. The energy-saving prefabricated overhead composite heat-insulating pipe and pipe bracket thereof according to claim 1, wherein the thickness of the reflective heat-insulating film (12) is 3mm, the thickness of the hard heat-insulating tile (13) is 100mm, the thickness of the TR-350A nano heat-insulating coating (14) is 10mm, the thickness of the polyurethane foam layer (15) is 23mm, and the thickness of the metal outer protective pipe (16) is 1 mm.
3. The energy-saving prefabricated overhead composite heat-insulating pipe and the pipe bracket thereof as claimed in claim 1, wherein the rotary buckle (24) is composed of a positioning rod (244) arranged on the upper pipe bracket (21), a connecting seat (241) arranged on the lower pipe bracket (22), and a rotary ring (243) rotatably connected with the connecting seat (241) through a second rotary shaft (242); the fixing and the separation between the positioning rod (244) and the connecting seat (241) can be controlled by rotating the rotating ring (243).
4. The energy-saving prefabricated overhead composite heat-insulating pipe and the pipe bracket thereof as claimed in claim 3, wherein the inner wall of the rotating ring (243) is provided with a convex groove (2431), and the positioning rod (244) is provided with a groove (2441) matched with the convex groove (2431).
5. The energy-saving prefabricated overhead composite heat-insulating pipe and the pipe bracket thereof as claimed in claim 3, wherein the connecting base (241) is provided with a limiting block (245) for positioning the rotating ring (243).
6. The energy-saving prefabricated overhead composite heat-insulating pipe and the pipe bracket thereof as claimed in claim 1, wherein the inner walls of the upper pipe bracket (21) and the lower pipe bracket (22) are provided with heat-insulating layers (25).
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| CN202020123256.2U CN211624604U (en) | 2020-01-19 | 2020-01-19 | Energy-saving prefabricated overhead composite heat-insulating pipe and pipe bracket thereof |
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| CN202020123256.2U CN211624604U (en) | 2020-01-19 | 2020-01-19 | Energy-saving prefabricated overhead composite heat-insulating pipe and pipe bracket thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864573A (en) * | 2021-10-27 | 2021-12-31 | 江苏龙英管道新材料有限公司 | Prefabricated overhead soft heat-insulation pipe system, manufacturing method and transportation and installation method |
| CN115199866A (en) * | 2022-07-21 | 2022-10-18 | 江苏明江机械制造有限公司 | Soft prefabricated overhead steam heat-insulation pipe and manufacturing method and joint coating method thereof |
| CN116398749A (en) * | 2023-06-09 | 2023-07-07 | 江苏龙英管道新材料有限公司 | Prefabricated overhead heat-insulating pipe assembly and installation method thereof |
-
2020
- 2020-01-19 CN CN202020123256.2U patent/CN211624604U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864573A (en) * | 2021-10-27 | 2021-12-31 | 江苏龙英管道新材料有限公司 | Prefabricated overhead soft heat-insulation pipe system, manufacturing method and transportation and installation method |
| CN115199866A (en) * | 2022-07-21 | 2022-10-18 | 江苏明江机械制造有限公司 | Soft prefabricated overhead steam heat-insulation pipe and manufacturing method and joint coating method thereof |
| CN115199866B (en) * | 2022-07-21 | 2024-03-22 | 江苏明江机械制造有限公司 | Soft prefabricated overhead steam heat-insulating pipe and manufacturing method and joint coating method thereof |
| CN116398749A (en) * | 2023-06-09 | 2023-07-07 | 江苏龙英管道新材料有限公司 | Prefabricated overhead heat-insulating pipe assembly and installation method thereof |
| CN116398749B (en) * | 2023-06-09 | 2023-08-22 | 江苏龙英管道新材料有限公司 | Prefabricated overhead heat-insulating pipe assembly and installation method thereof |
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