CN203948806U - A kind of hot and cold water thermal insulation pipe - Google Patents
A kind of hot and cold water thermal insulation pipe Download PDFInfo
- Publication number
- CN203948806U CN203948806U CN201420373952.3U CN201420373952U CN203948806U CN 203948806 U CN203948806 U CN 203948806U CN 201420373952 U CN201420373952 U CN 201420373952U CN 203948806 U CN203948806 U CN 203948806U
- Authority
- CN
- China
- Prior art keywords
- pipe
- thermal insulation
- hot
- cold water
- outer sleeve
- 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.)
- Expired - Lifetime
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 16
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 15
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 15
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 5
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 10
- 239000006260 foam Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model discloses a kind of hot and cold water thermal insulation pipe, be characterized in that hot and cold water steel pipe is provided with thermal insulation layer, internal lining pipe and outer sleeve outward successively; Described outer sleeve is HDPE plastic tube; Described internal lining pipe is the steel thin-wall pipe of lining in outer sleeve; Described thermal insulation layer is the polyurethane foam being filled between hot and cold water steel pipe and internal lining pipe.The utility model compared with prior art has good toughness and impact resistance, has improved intensity, rigidity and waterproof and the decay resistance of insulation pipe, and simple in structure, lightweight, high insulating effect, low cost of manufacture, easy construction, effectively reduces the heat waste of pipe network.
Description
Technical field
The utility model relates to pipeline heat-insulating technology field, especially a kind of hot and cold water thermal insulation pipe of thin-walled lined steel plastic wrapper.
Background technique
The thermal insulation layer overcoat of directly buried installation hot water or cold water thermal insulation pipe can be fished pipe, can be also Glass Steel Tube, but use maximum, is high density polyethylene (HDPE) (HDPE) pipe.Traditional fabrication method is with extrusion equipment and shaping die, sizing cooling equipment, HDPE raw material particle to be heated, and melting draw become thin-wall plastic pipe.Then by the plastic pipe sleeve being shaped to steel pipe, in the annular chuck of plastic tube and steel pipe, inject urethane raw, foaming, makes hot and cold water thermal insulation pipe.
At present, be incubated core pipe caliber from DN25 until DN1400 on market, its outer sleeve bore is from Φ 110 to Φ 1600, and the wall thickness of plastic outer sleeve is from 2.5mm to 16mm.Tens millimeters of the plastic wrapper thicknesss of pipe wall of heavy caliber thermal insulation pipe, its function is obviously superfluous, but due to HDPE material property and production technology aspect, large-bore plastics casing wall thickness cannot subtract.The country of some early development thermal insulation pipe products of Northern Europe has changed thermal insulation pipe production technology, the insulating foam of thermal insulation pipe no longer adopts method for filling processing and fabricating, use the way of spraying instead, at steel pipe, first generate foam layer outward, the HDPE that the foam layer after solidifying is wound around molten state outward makes thermal insulation pipe.Easily there is in process of production foam and splash with elegant in spraying method, to cut shaping to foam layer afterwards, this process can cause foam dust from flying again, and the thickness that is wrapped in the HDPE band outside foam layer is to subtract, can concerning heavy caliber thermal insulation pipe, show slightly again thin, strength and stiffness often can not meet construction requirement.
Model utility content
The purpose of this utility model is a kind of hot and cold water thermal insulation pipe designing for the deficiencies in the prior art, adopt the thermal insulation pipe of lined steel plastic wrapper structure, make insulation pipe there is good toughness and impact resistance, intensity, rigidity and waterproof and the decay resistance of insulation pipe have greatly been improved, and simple in structure, lightweight, high insulating effect, low cost of manufacture, easy construction.
The purpose of this utility model is achieved in that a kind of hot and cold water thermal insulation pipe, is characterized in that hot and cold water steel pipe is provided with thermal insulation layer, internal lining pipe and outer sleeve outward successively; Described outer sleeve is HDPE plastic tube; Described internal lining pipe is the steel thin-wall pipe of lining in outer sleeve; Described thermal insulation layer is the polyurethane foam being filled between hot and cold water steel pipe and internal lining pipe.
The utility model compared with prior art has good toughness and impact resistance, has improved intensity, rigidity and waterproof and the decay resistance of insulation pipe, and simple in structure, lightweight, high insulating effect, low cost of manufacture, easy construction, effectively reduces the heat waste of pipe network.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Consult accompanying drawing 1, the utility model is comprised of outer sleeve 1, internal lining pipe 2, thermal insulation layer 3 and hot and cold water steel pipe 4, and described outer sleeve 1 is HDPE plastic tube; Described internal lining pipe 2 is the steel thin-wall pipe of lining in outer sleeve 1; Described thermal insulation layer 3 is for being filled in the polyurethane foam between hot and cold water steel pipe 4 and internal lining pipe 2.
The utility model is to make like this: internal lining pipe 2 is rolled and formed by sheet metal, the HDPE plastics of spiral winding molten state on internal lining pipe 2, postpone successively and be wound around and Multi-stacking compaction, through roll extrusion, cooling after at the outer sleeve 1 of the outer generation of internal lining pipe 2 HDPE thin-walled, after HDPE plastics solidification, be sleeved on outside hot and cold water steel pipe 4, then in the interlayer of hot and cold water steel pipe 4 and internal lining pipe 2, adopt the thermal insulation layer 3 of instillation process filled polyurethane foam to make the hot and cold water thermal insulation pipe of plastic wrapper liner thin-wall steel tube.After outer sleeve 1 liner thin-wall steel tube, the thin-walled plastic overcoat thermal insulation pipe that its tensile strength, compressive strength and Young's modulus and rigidity are all produced than prior art has improved doubly a lot, especially casing wall thickness reduces a lot, the thin-walled HDPE overcoat of its strength and stiffness and prior art is suitable, cost declines a lot, and traditional perfusion foaming machine still can continue to use, Utilization ratio is high, and fabricating cost is low.
More than just the utility model is further described, not in order to limit this patent, all is that the utility model equivalence is implemented, within all should being contained in the claim scope of this patent.
Claims (1)
1. a hot and cold water thermal insulation pipe, is characterized in that outer thermal insulation layer (3), internal lining pipe (2) and the outer sleeve (1) of being provided with successively of hot and cold water steel pipe (4); Described outer sleeve (1) is HDPE plastic tube; Described internal lining pipe (2) is the steel thin-wall pipe of lining in outer sleeve (1); Described thermal insulation layer (3) is for being filled in the polyurethane foam between hot and cold water steel pipe (4) and internal lining pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373952.3U CN203948806U (en) | 2014-07-08 | 2014-07-08 | A kind of hot and cold water thermal insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373952.3U CN203948806U (en) | 2014-07-08 | 2014-07-08 | A kind of hot and cold water thermal insulation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948806U true CN203948806U (en) | 2014-11-19 |
Family
ID=51890842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420373952.3U Expired - Lifetime CN203948806U (en) | 2014-07-08 | 2014-07-08 | A kind of hot and cold water thermal insulation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948806U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104366865A (en) * | 2014-11-25 | 2015-02-25 | 力帆实业(集团)股份有限公司 | Reinforced helmet for motorcycle |
| CN105972341A (en) * | 2016-07-22 | 2016-09-28 | 苏州市同发塑业有限公司 | Pressure-resistant anti-cracking water pipe |
| CN105972332A (en) * | 2016-07-22 | 2016-09-28 | 苏州市同发塑业有限公司 | Plastic pipe with heat insulating and reinforcing functions |
| CN105972333A (en) * | 2016-07-22 | 2016-09-28 | 苏州市同发塑业有限公司 | Anti-explosion heat insulation pipe |
-
2014
- 2014-07-08 CN CN201420373952.3U patent/CN203948806U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104366865A (en) * | 2014-11-25 | 2015-02-25 | 力帆实业(集团)股份有限公司 | Reinforced helmet for motorcycle |
| CN105972341A (en) * | 2016-07-22 | 2016-09-28 | 苏州市同发塑业有限公司 | Pressure-resistant anti-cracking water pipe |
| CN105972332A (en) * | 2016-07-22 | 2016-09-28 | 苏州市同发塑业有限公司 | Plastic pipe with heat insulating and reinforcing functions |
| CN105972333A (en) * | 2016-07-22 | 2016-09-28 | 苏州市同发塑业有限公司 | Anti-explosion heat insulation pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |