CN111271523A - Can reduce waterproof type insulating tube of heat loss - Google Patents
Can reduce waterproof type insulating tube of heat loss Download PDFInfo
- Publication number
- CN111271523A CN111271523A CN202010061945.XA CN202010061945A CN111271523A CN 111271523 A CN111271523 A CN 111271523A CN 202010061945 A CN202010061945 A CN 202010061945A CN 111271523 A CN111271523 A CN 111271523A
- Authority
- CN
- China
- Prior art keywords
- thermal insulation
- thermal
- waterproof
- temperature resistant
- high temperature
- 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
Links
Images
Classifications
-
- 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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
-
- 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
-
- 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
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
-
- 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
- F16L59/15—Arrangements for the insulation of pipes or pipe systems for underground pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a waterproof heat-insulating pipe capable of reducing heat loss, belonging to the technical field of heat-insulating pipes, and the technical key points are as follows: including the insulating tube body, high temperature resistant telescopic band, thermal-insulated shell and protective tube body, the outside coiling of insulating tube body has high temperature resistant telescopic band, high temperature resistant telescopic band outband side is equipped with the thermal-insulated shell that forms of moulding plastics, the inside embedding of thermal-insulated shell has a plurality of steel strands, the inside vacuum heat preservation that still is provided with of thermal-insulated shell, the thermal-insulated shell outside is equipped with the polyurethane layer, the polyurethane layer outside is equipped with the waterproof layer, the waterproof layer outside is equipped with the protective tube body, through coiling high temperature resistant telescopic band outside the insulating tube body, and it has the thermal-insulated shell of steel strand wires and vacuum heat preservation to mould plastics, the skin sets up polyurethane layer heat preservation and waterproof layer, the protective tube body is established to the cover, thermal insulation performance is good, mechanical strength is.
Description
Technical Field
The invention relates to the technical field of heat-insulating pipes, in particular to a waterproof heat-insulating pipe capable of reducing heat loss.
Background
In urban planning and construction, the heat-insulating pipe is widely applied to direct-buried laying of hot water pipelines and steam pipelines, and has various social and economic advantages compared with trench laying and overhead laying. If the occupied area is small, the city appearance landscape and the city planning are not influenced.
However, the existing direct-buried steam insulation pipe only has the insulation effect, but the insulation structure is too simple, so that the insulation effect is poor, the heat loss is increased, and the energy-saving effect is poor. When the heat preservation pipe is used for carrying out heat preservation and conveying on media (superheated steam, saturated steam, heat conduction oil and the like), the heat preservation effect and the waterproof capacity of the heat preservation pipe are still insufficient. The heat insulation material is destroyed and sprayed out from any possible place, so that the heat insulation effect of the whole engineering is greatly reduced and even the whole engineering is scrapped.
And current insulating tube skin water-proof effects is relatively poor, because insulating tube is permanent buries in the underground, and its surface can be gathered full of the water source, and the long-term use of insulating tube down can cause the outside of insulating tube to appear the condition by the corruption like this to can reduce the life of insulating tube.
Therefore, it is desirable to provide a waterproof type thermal insulation pipe capable of reducing heat loss, aiming at solving the above problems.
Disclosure of Invention
In view of the defects in the prior art, an object of the embodiments of the present invention is to provide a waterproof thermal insulation pipe capable of reducing heat loss, so as to solve the above problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a can reduce waterproof type insulating tube of heat loss, includes insulating tube body, high temperature resistant telescopic band, thermal-insulated shell and protecting tube body, and the outside coiling of insulating tube body has high temperature resistant telescopic band, and high temperature resistant telescopic band outside is equipped with the thermal-insulated shell that forms of moulding plastics, and the inside embedding of thermal-insulated shell has a plurality of steel strands, and the inside vacuum insulation layer that still is provided with of thermal-insulated shell, the thermal-insulated shell outside is equipped with the polyurethane layer, and the polyurethane layer outside is equipped with the waterproof layer, and the waterproof layer outside is equipped with the protecting tube body.
As a further scheme of the invention, the high-temperature resistant telescopic belt is spirally wound outside the heat preservation pipe body clockwise or anticlockwise.
As a further scheme of the invention, the heat preservation pipe body is a PPR heat preservation pipe.
As a further scheme of the invention, the high-temperature resistant expansion band is a polyurethane expansion band, a nylon adhesive tape or a spandex adhesive tape.
As a further scheme of the invention, the steel strands are distributed at equal intervals along the circumferential direction of the heat insulation shell, and the plurality of steel strands are arranged along the length direction of the heat insulation pipe body.
As a further scheme of the invention, the heat insulation shell adopts a shell made of PVC.
As a further scheme of the present invention, the waterproof layer is a polyurea layer or a waterproof adhesive.
As a further scheme of the invention, the protective pipe body is a polyethylene wear-resistant pipe.
In summary, compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the waterproof type heat preservation pipe capable of reducing heat loss, the high-temperature resistant telescopic belt is wound on the outer side of the heat preservation pipe body, the heat preservation shell with the steel strand and the vacuum heat preservation layer is formed in an injection molding mode, the polyurethane layer heat preservation layer and the waterproof layer are arranged on the outer layer, the protection pipe body is sleeved with the polyurethane layer heat preservation layer and the waterproof layer, the heat preservation performance is good, the mechanical strength is good, the buffering performance is excellent, the temperature adaptability is strong, and the heat preservation and waterproof effects.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the invention.
FIG. 2 is a schematic structural view of the high temperature resistant expansion band wound on the insulating pipe body in the embodiment of the invention.
Reference numerals: 1-a heat preservation pipe body, 2-a high temperature resistant telescopic belt, 3-a steel strand, 4-a vacuum heat preservation layer, 5-a heat insulation shell, 6-a polyurethane layer, 7-a waterproof layer and 8-a protective pipe body.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1
Referring to fig. 1, a waterproof thermal insulation pipe capable of reducing heat loss comprises a thermal insulation pipe body 1, a high temperature resistant expansion band 2, a thermal insulation shell 5 and a protective pipe body 8, wherein the high temperature resistant expansion band 2 is wound outside the thermal insulation pipe body 1, and the high temperature resistant expansion band 2 is spirally wound outside the thermal insulation pipe body 1 clockwise, which is shown in fig. 2;
preferably, in the embodiment of the present invention, the thermal insulation pipe body 1 is a PPR thermal insulation pipe (tripropylene polypropylene thermal insulation pipe), the high temperature resistant extensible belt 2 is a polyurethane extensible belt, and the high temperature resistant extensible belt 2 is wound outside the thermal insulation pipe body 1 to form a high temperature resistant protective layer, so that when the thermal insulation pipe body 1 carries out thermal insulation on a medium (superheated steam, saturated steam, heat conduction oil, etc.), the thermal insulation effect of the thermal insulation pipe body 1 is enhanced, and heat loss of the thermal insulation pipe body 1 is reduced.
The outer side of the high-temperature resistant telescopic belt 2 is provided with an injection-molded heat insulation shell 5, a plurality of steel strands 3 are embedded in the heat insulation shell 5, the steel strands 3 are distributed at equal intervals along the circumferential direction of the heat insulation shell 5, and the plurality of steel strands 3 are arranged along the length direction of the heat preservation pipe body 1; the inside vacuum heat preservation layer 4 that still is provided with of thermal-insulated shell 5, the setting of vacuum heat preservation layer 4 alleviates thermal-insulated shell 5's weight, simultaneously, also has fine heat preservation thermal-insulated effect.
In the embodiment of the present invention, the heat insulating shell 5 is a shell made of PVC.
The outer side of the heat insulation shell 5 is provided with a polyurethane layer 6, the outer side of the polyurethane layer 6 is provided with a waterproof layer 7, the outer side of the waterproof layer 7 is provided with a protective pipe body 8, in the embodiment of the invention, the waterproof layer 7 is a polyurea layer, and the protective pipe body 8 is a polyethylene wear-resistant pipe; the waterproof heat-insulating pipe capable of reducing heat loss, which is formed by the structure, has the advantages of good heat-insulating property, good mechanical strength, excellent buffering property, strong temperature adaptability and good heat-insulating and waterproof effects.
Example 2
Referring to fig. 1, a waterproof thermal insulation pipe capable of reducing heat loss comprises a thermal insulation pipe body 1, a high temperature resistant expansion band 2, a thermal insulation shell 5 and a protective pipe body 8, wherein the high temperature resistant expansion band 2 is wound outside the thermal insulation pipe body 1, and the high temperature resistant expansion band 2 is spirally wound outside the thermal insulation pipe body 1 in an anticlockwise direction, which is shown in fig. 2;
preferably, in the embodiment of the present invention, the thermal insulation pipe body 1 is a PPR thermal insulation pipe (tripropylene polypropylene thermal insulation pipe), the high temperature resistant extensible band 2 is a temperature resistant and fireproof polyamide adhesive tape, the high temperature resistant extensible band 2 is wound outside the thermal insulation pipe body 1 to form a high temperature resistant protective layer, and when the thermal insulation pipe body 1 carries out thermal insulation on a medium (superheated steam, saturated steam, heat conduction oil, etc.), the thermal insulation effect of the thermal insulation pipe body 1 is enhanced, and heat loss of the thermal insulation pipe body 1 is reduced.
The outer side of the high-temperature resistant telescopic belt 2 is provided with an injection-molded heat insulation shell 5, a plurality of steel strands 3 are embedded in the heat insulation shell 5, the steel strands 3 are distributed at equal intervals along the circumferential direction of the heat insulation shell 5, and the plurality of steel strands 3 are arranged along the length direction of the heat preservation pipe body 1; the inside vacuum heat preservation layer 4 that still is provided with of thermal-insulated shell 5, the setting of vacuum heat preservation layer 4 alleviates thermal-insulated shell 5's weight, simultaneously, also has fine heat preservation thermal-insulated effect.
In the embodiment of the present invention, the heat insulating shell 5 is a shell made of PVC.
The outer side of the heat insulation shell 5 is provided with a polyurethane layer 6, the outer side of the polyurethane layer 6 is provided with a waterproof layer 7, and the outer side of the waterproof layer 7 is provided with a protective pipe body 8; the waterproof heat-insulating pipe capable of reducing heat loss, which is formed by the structure, has the advantages of good heat-insulating property, good mechanical strength, excellent buffering property, strong temperature adaptability and good heat-insulating and waterproof effects.
Example 3
Referring to fig. 1, a waterproof thermal insulation pipe capable of reducing heat loss comprises a thermal insulation pipe body 1, a high temperature resistant expansion band 2, a thermal insulation shell 5 and a protective pipe body 8, wherein the high temperature resistant expansion band 2 is wound outside the thermal insulation pipe body 1, and the high temperature resistant expansion band 2 is spirally wound outside the thermal insulation pipe body 1 clockwise or anticlockwise, as shown in fig. 2;
preferably, in the embodiment of the present invention, the thermal insulation pipe body 1 is a PPR thermal insulation pipe (tripropylene polypropylene thermal insulation pipe), the high temperature resistant extensible band 2 is a spandex adhesive tape, and the high temperature resistant extensible band 2 is wound outside the thermal insulation pipe body 1 to form a high temperature resistant protective layer, so that when the thermal insulation pipe body 1 carries out thermal insulation conveying on media (superheated steam, saturated steam, heat conduction oil, etc.), a thermal insulation effect of the thermal insulation pipe body 1 is enhanced, and heat loss of the thermal insulation pipe body 1 is reduced.
The outer side of the high-temperature resistant telescopic belt 2 is provided with an injection-molded heat insulation shell 5, a plurality of steel strands 3 are embedded in the heat insulation shell 5, the steel strands 3 are distributed at equal intervals along the circumferential direction of the heat insulation shell 5, and the plurality of steel strands 3 are arranged along the length direction of the heat preservation pipe body 1; the inside vacuum heat preservation layer 4 that still is provided with of thermal-insulated shell 5, the setting of vacuum heat preservation layer 4 alleviates thermal-insulated shell 5's weight, simultaneously, also has fine heat preservation thermal-insulated effect.
In the embodiment of the present invention, the heat insulating shell 5 is a shell made of PVC.
The outer side of the heat insulation shell 5 is provided with a polyurethane layer 6, the outer side of the polyurethane layer 6 is provided with a waterproof layer 7, the outer side of the waterproof layer 7 is provided with a protective pipe body 8, in the embodiment of the invention, the waterproof layer 7 is a polyurea layer, and the protective pipe body 8 is a polyethylene wear-resistant pipe; the waterproof heat-insulating pipe capable of reducing heat loss, which is formed by the structure, has the advantages of good heat-insulating property, good mechanical strength, excellent buffering property, strong temperature adaptability and good heat-insulating and waterproof effects.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty, and such will fall within the scope of the invention.
Claims (8)
1. The utility model provides a can reduce waterproof type insulating tube of heat loss, including insulating tube body (1), high temperature resistant telescopic band (2), thermal-insulated shell (5) and protecting tube body (8), a serial communication port, insulating tube body (1) outside coiling has high temperature resistant telescopic band (2), high temperature resistant telescopic band (2) outside is equipped with thermal-insulated shell (5) of moulding plastics and forming, the inside embedding of thermal-insulated shell (5) has a plurality of steel strand wires (3), the inside vacuum insulation layer (4) that still is provided with of thermal-insulated shell (5), thermal-insulated shell (5) outside is equipped with polyurethane layer (6), polyurethane layer (6) outside is equipped with waterproof layer (7), waterproof layer (7) outside is equipped with protecting tube body (8).
2. The waterproof thermal insulation pipe capable of reducing heat loss according to claim 1, wherein the high temperature resistant expansion band (2) is spirally wound outside the thermal insulation pipe body (1) clockwise or counterclockwise.
3. The waterproof type thermal insulation pipe capable of reducing heat loss according to claim 1, wherein the thermal insulation pipe body (1) is a PPR thermal insulation pipe.
4. The waterproof thermal insulation pipe capable of reducing heat loss according to claim 2, wherein the high temperature resistant expansion band (2) is a polyurethane expansion band, a nylon adhesive tape or a spandex adhesive tape.
5. The waterproof thermal insulation pipe capable of reducing heat loss according to claim 1, wherein the steel strands (3) are distributed at equal intervals along the circumferential direction of the thermal insulation shell (5), and the plurality of steel strands (3) are arranged along the length direction of the thermal insulation pipe body (1).
6. The waterproof type thermal insulation pipe capable of reducing heat loss according to claim 5, wherein the thermal insulation shell (5) is a pipe shell made of PVC.
7. The waterproof type thermal insulation pipe capable of reducing heat loss according to claim 1, wherein the waterproof layer (7) is a polyurea layer or waterproof glue.
8. The waterproof type heat preservation pipe capable of reducing heat loss according to claim 1 is characterized in that the protective pipe body (8) is a polyethylene wear-resistant pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061945.XA CN111271523A (en) | 2020-01-19 | 2020-01-19 | Can reduce waterproof type insulating tube of heat loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061945.XA CN111271523A (en) | 2020-01-19 | 2020-01-19 | Can reduce waterproof type insulating tube of heat loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271523A true CN111271523A (en) | 2020-06-12 |
Family
ID=70994844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010061945.XA Pending CN111271523A (en) | 2020-01-19 | 2020-01-19 | Can reduce waterproof type insulating tube of heat loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111271523A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000121138A (en) * | 1998-10-20 | 2000-04-28 | Fujimori Sangyo Kk | Duct for air conditioning |
| JP2002295788A (en) * | 2001-03-29 | 2002-10-09 | Sekisui Chem Co Ltd | Method for heat insulating protective covering of heat insulation plastic pipe |
| EP2318749A1 (en) * | 2008-07-25 | 2011-05-11 | ShawCor Ltd. | High temperature resistant insulation for pipe |
| CN203585591U (en) * | 2013-11-25 | 2014-05-07 | 宁波东海万里管业有限公司 | Waterproof direct burial thermal insulation pipe |
| CN207005476U (en) * | 2017-07-27 | 2018-02-13 | 芜湖君如保温材料有限公司 | A kind of PP R polyurethane thermal pipes |
| CN207316256U (en) * | 2017-09-11 | 2018-05-04 | 山东大城防腐保温安装工程有限公司 | A kind of novel heating pipeline |
| US20180306376A1 (en) * | 2015-10-22 | 2018-10-25 | Technip France | Method for assembling a rigid conduit and associated conduit |
| CN208967323U (en) * | 2018-09-11 | 2019-06-11 | 诺弗斯绝热材料有限公司 | A kind of air-conditioning insulating tube |
-
2020
- 2020-01-19 CN CN202010061945.XA patent/CN111271523A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000121138A (en) * | 1998-10-20 | 2000-04-28 | Fujimori Sangyo Kk | Duct for air conditioning |
| JP2002295788A (en) * | 2001-03-29 | 2002-10-09 | Sekisui Chem Co Ltd | Method for heat insulating protective covering of heat insulation plastic pipe |
| EP2318749A1 (en) * | 2008-07-25 | 2011-05-11 | ShawCor Ltd. | High temperature resistant insulation for pipe |
| CN203585591U (en) * | 2013-11-25 | 2014-05-07 | 宁波东海万里管业有限公司 | Waterproof direct burial thermal insulation pipe |
| US20180306376A1 (en) * | 2015-10-22 | 2018-10-25 | Technip France | Method for assembling a rigid conduit and associated conduit |
| CN207005476U (en) * | 2017-07-27 | 2018-02-13 | 芜湖君如保温材料有限公司 | A kind of PP R polyurethane thermal pipes |
| CN207316256U (en) * | 2017-09-11 | 2018-05-04 | 山东大城防腐保温安装工程有限公司 | A kind of novel heating pipeline |
| CN208967323U (en) * | 2018-09-11 | 2019-06-11 | 诺弗斯绝热材料有限公司 | A kind of air-conditioning insulating tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207112139U (en) | A kind of UPVC double-wall corrugated pipes | |
| CN103075610A (en) | Low-energy-consumption steam delivery pipe system | |
| CN205542041U (en) | From area heating heat -preservation type power cable suitable for in cold areas | |
| CN111271523A (en) | Can reduce waterproof type insulating tube of heat loss | |
| CN213064950U (en) | Wear-resistant water supply pipe | |
| CN209819041U (en) | Outer protective waterproof anticorrosion energy-saving steam direct-buried heat preservation pipe | |
| CN215981467U (en) | Heat distribution pipeline with heat preservation performance | |
| CN206861152U (en) | A kind of double inner tube formula polyurethane thermal pipe | |
| CN206694729U (en) | A kind of monoblock type directly buried hot-water piping means of deflation | |
| CN211145630U (en) | PE water supply pipe with heat insulation function | |
| CN209856621U (en) | Anti-freezing thermal PE pipe | |
| CN208237342U (en) | A kind of pipeline valve heat insulation sleeve | |
| CN211375147U (en) | Polyethylene silicon core pipe | |
| CN210600501U (en) | Low-temperature efficient heat preservation pipe | |
| CN203880326U (en) | Heat preservation pipeline | |
| CN210003959U (en) | kinds of marine oil and gas conveying hose | |
| CN207149276U (en) | A kind of flexible cable | |
| CN220268826U (en) | Heat-resistant and wear-resistant PE (polyethylene) pipe | |
| CN212840146U (en) | Pipeline heat preservation clothing that waterproof nature is good | |
| CN207005472U (en) | A kind of frost-cracking-preventing PE water pipes | |
| CN221196531U (en) | Antifreezing water pipe structure | |
| CN212131553U (en) | Novel double-layer corrugated pipe | |
| CN207762441U (en) | A kind of novel wear resistant Anti-freezing drainpipe | |
| CN219282730U (en) | Heat preservation structure of field camping water conveying pipeline | |
| CN214008509U (en) | End structure is protected outward to steel of prefabricated insulating tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200612 |
|
| RJ01 | Rejection of invention patent application after publication |