CN107152567A - A kind of flexible polyurethane insulating tube and its production technology - Google Patents
A kind of flexible polyurethane insulating tube and its production technology Download PDFInfo
- Publication number
- CN107152567A CN107152567A CN201610118317.4A CN201610118317A CN107152567A CN 107152567 A CN107152567 A CN 107152567A CN 201610118317 A CN201610118317 A CN 201610118317A CN 107152567 A CN107152567 A CN 107152567A
- Authority
- CN
- China
- Prior art keywords
- tube
- clad
- inner tube
- polyurethane
- insulating tube
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- 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
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
-
- 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
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
A kind of flexible polyurethane insulating tube, including inner tube, foaming layer, clad and outer tube, the clad are one kind in composite membrane, plastic sheeting, fabric or metal foil.Said inner tube is one kind in PEX, PPR, PERT, PE, PP material.The foaming layer is formed for polyurethane foam.The presence that clad is molded protective layer as polyurethane foam can aid in polyurethane foam to be molded.The outer tube is one kind in PEX, PPR, PERT, PE, PP material.The outer tube is corrugated or flat tube.Polyurethane thermal pipe provided by the present invention, it is simple in construction, it is easily manufactured, continuous production can be realized, cost 50% is reduced, labour is reduced, greatly improves production capacity.
Description
Technical field
The present invention relates to insulating tube technical field, and in particular to a kind of flexible polyurethane insulating tube.
Background technology
Utilidor is the abbreviation of insulated piping, and utilidor is mainly used in the conveying of liquid, gas and other media, is played an important role in the adiabatic heat-insulation engineering of the pipelines such as oil, chemical industry, space flight, military affairs, central heating, central air-conditioning, municipal administration.
The structure of popular insulating tube is such in the market：Internal layer is instrumentation tubes, and intermediate layer is polyurethane insulation coating, and outer layer is outer protection tube.The conventional fabrication method of this insulating tube is, by inner and outer pipes fit, then to erect, fix vertically, from the top of pipeline to polyurethane foam is injected between inner and outer pipes, forms heat-insulation layer.This method wastes time and energy, and can not continuously produce, and production capacity is low.
The content of the invention
To solve the above problems, the invention provides a kind of suitable quantity-produced flexible polyurethane insulating tube and its production technology.The technical scheme used for：
A kind of flexible polyurethane insulating tube, including inner tube, foaming layer, clad and outer tube, the clad are one kind in composite membrane, plastic sheeting, fabric or metal foil.
Further, said inner tube is one kind in multiple tube or PEX, PPR, PERT, PE, PP material.
It is preferred that, the foaming layer is formed for polyurethane foam.
The presence that clad is molded protective layer as polyurethane foam can aid in polyurethane foam to be molded.
It is preferred that, the outer tube is one kind in PEX, PPR, PERT, PE, PP material, the outer tube that preferred PE materials are made, next to that PERT materials, the outer tube that the 3rd selection is made for PP materials, the outer tube that finally just selection PEX, PPR material is made.
It is preferred that, the outer tube is corrugated or flat tube, and ring stiffness is increased while saving material, that is, straight pipe reaches that equal ring stiffness needs outer layer thickness to increase.
A kind of continuous production processes for manufacturing flexible polyurethane insulating tube, comprise the following steps：
A, depth of foam is determined, the inner tube of advance is maintained on foamed layer core position；
B, on the outside of the inner tube fixed coat clad；
C, while clad is coated in the space between inner tube and clad fill polyurethane to be foamed；
D, being travelled forward in inner tube and clad enters foam chamber, in the broken rifle polyurethane foam shaping of hair；
E, after polyurethane foam shaping finish after, outer tube is coated in the inner tube with foaming layer and clad by coated head.
Polyurethane thermal pipe provided by the present invention, it is simple in construction, it is easily manufactured, continuous production can be realized, cost 50% is reduced, labour is reduced, greatly improves production capacity.
Brief description of the drawings
Fig. 1 is structural representation of the invention
Embodiment
Embodiment 1
As described in Figure 1, a kind of flexible polyurethane insulating tube, including inner tube 1, foaming layer 2, clad 3 and outer tube 4.
A kind of continuous production processes for manufacturing flexible polyurethane insulating tube, comprise the following steps：
A, depth of foam is determined, the inner tube of advance is maintained on foamed layer core position；
B, on the outside of the inner tube fixed coat clad；
C, while clad is coated in the space between inner tube and clad fill polyurethane to be foamed；
D, being travelled forward in inner tube and clad enters foam chamber, in the broken rifle polyurethane foam shaping of hair；
E, after polyurethane foam shaping finish after, outer tube is coated in the inner tube with foaming layer and clad by coated head.
Said inner tube 1 is managed for PEX, heat-resisting, can do the higher fluid material of delivery temperature.During manufacture, inner tube 1 is fixed, polyurethane is filled to the space between clad 3 and inner tube 1 while cladding clad 3 of the outside of inner tube 1, at the end for the treatment of polyurethane foam formation foaming layer 2 soon, the inner tube 1 for being enclosed with foaming layer 2 and clad 3 is directed at the center of outer tube 4, is set in together.The clad 3 is one kind in plastic sheeting PE films, PP films, PVC film and PET film.The presence that clad 3 is molded protective layer as polyurethane foam can aid in polyurethane foam to be molded.
The outer tube 4 is managed for corrugated PERT, can greatly enhance the bulk strength of insulating tube.
Embodiment 2
As described in Figure 1, a kind of flexible polyurethane insulating tube, including inner tube 1, foaming layer 2, clad 3 and outer tube 4.
A kind of continuous production processes for manufacturing flexible polyurethane insulating tube, comprise the following steps：
A, depth of foam is determined, the inner tube of advance is maintained on foamed layer core position；
B, on the outside of the inner tube fixed coat clad；
C, while clad is coated in the space between inner tube and clad fill polyurethane to be foamed；
D, being travelled forward in inner tube and clad enters foam chamber, in the broken rifle polyurethane foam shaping of hair；
E, after polyurethane foam shaping finish after, outer tube is coated in the inner tube with foaming layer and clad by coated head.
Said inner tube 1 is managed for PERT, heat-resisting, can do the higher fluid material of delivery temperature.During manufacture, inner tube 1 is fixed, polyurethane is filled to the space between clad 3 and inner tube 1 while cladding clad 3 of the outside of inner tube 1, at the end for the treatment of polyurethane foam formation foaming layer 2 soon, the inner tube 1 for being enclosed with foaming layer 2 and clad 3 is directed at the center of outer tube 4, is set in together.The clad 3 is fabric cloth, and the presence that clad 3 is molded protective layer as polyurethane foam can aid in polyurethane foam to be molded.
The outer tube 4 is managed for corrugated PEX, can greatly enhance the bulk strength of insulating tube.
Embodiment 3
As described in Figure 1, a kind of flexible polyurethane insulating tube, including inner tube 1, foaming layer 2, clad 3 and outer tube 4.
A kind of continuous production processes for manufacturing flexible polyurethane insulating tube, comprise the following steps：
A, depth of foam is determined, the inner tube of advance is maintained on foamed layer core position；
B, on the outside of the inner tube fixed coat clad；
C, while clad is coated in the space between inner tube and clad fill polyurethane to be foamed；
D, being travelled forward in inner tube and clad enters foam chamber, in the broken rifle polyurethane foam shaping of hair；
E, after polyurethane foam shaping finish after, outer tube is coated in the inner tube with foaming layer and clad by coated head.
Said inner tube 1 is PPR pipe, heat-resisting, can do the higher fluid material of delivery temperature.During manufacture, inner tube 1 is fixed, polyurethane is filled to the space between clad 3 and inner tube 1 while cladding clad 3 of the outside of inner tube 1, at the end for the treatment of polyurethane foam formation foaming layer 2 soon, the inner tube 1 for being enclosed with foaming layer 2 and clad 3 is directed at the center of outer tube 4, is set in together.The clad 3 is aluminium foil, and the presence that clad 3 is molded protective layer as polyurethane foam can aid in polyurethane foam to be molded.Meanwhile, with aluminium foil as clad 3, the corrosion resistance of insulating tube inner tube 1 can also be greatly improved, extends the whole service life of insulating tube, workable occasion scope is larger.
The outer tube 4 is managed for corrugated PP, can greatly enhance the bulk strength of insulating tube.
Claims (6)
1. a kind of flexible polyurethane insulating tube, including inner tube, foaming layer, clad and outer tube, it is characterised in that
The clad is one kind in composite membrane, plastic sheeting, fabric or metal foil.
2. flexible polyurethane insulating tube according to claim 1, it is characterised in that said inner tube is multiple tube
Or one kind in PEX, PPR, PERT, PE, PP material.
3. soft type polyurethane insulating tube according to claim 1, it is characterised in that the foaming layer is poly- ammonia
Ester foaming is formed.
4. flexible polyurethane insulating tube according to claim 1, it is characterised in that the outer tube be PEX,
One kind in PPR, PERT, PE, PP material.
5. flexible polyurethane insulating tube according to claim 1, it is characterised in that the outer tube is corrugated
Or flat tube.
6. a kind of continuous production processes of soft type polyurethane insulating tube according to claim 1, including following step
Suddenly：
A, depth of foam is determined, the inner tube of advance is maintained on foamed layer core position；
B, on the outside of the inner tube fixed coat clad；
C, while clad is coated in the space between inner tube and clad fill polyurethane to be foamed；
D, being travelled forward in inner tube and clad enters foam chamber, in the broken rifle polyurethane foam shaping of hair；
E, after polyurethane foam shaping finish after, outer tube is coated on foaming layer and cladding by coated head
In the inner tube of layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118317.4A CN107152567A (en) | 2016-03-02 | 2016-03-02 | A kind of flexible polyurethane insulating tube and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118317.4A CN107152567A (en) | 2016-03-02 | 2016-03-02 | A kind of flexible polyurethane insulating tube and its production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107152567A true CN107152567A (en) | 2017-09-12 |
Family
ID=59791344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610118317.4A Withdrawn CN107152567A (en) | 2016-03-02 | 2016-03-02 | A kind of flexible polyurethane insulating tube and its production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107152567A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115027102A (en) * | 2022-05-12 | 2022-09-09 | 临海伟星新型建材有限公司 | High-strength medium conveying pipeline with temperature and preparation method thereof |
| CN115071188A (en) * | 2022-05-12 | 2022-09-20 | 临海伟星新型建材有限公司 | Deep geothermal heat-insulation composite pipeline and preparation method thereof |
-
2016
- 2016-03-02 CN CN201610118317.4A patent/CN107152567A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115027102A (en) * | 2022-05-12 | 2022-09-09 | 临海伟星新型建材有限公司 | High-strength medium conveying pipeline with temperature and preparation method thereof |
| CN115071188A (en) * | 2022-05-12 | 2022-09-20 | 临海伟星新型建材有限公司 | Deep geothermal heat-insulation composite pipeline and preparation method thereof |
| CN115027102B (en) * | 2022-05-12 | 2024-03-19 | 临海伟星新型建材有限公司 | High-strength medium conveying pipeline with temperature and preparation method thereof |
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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 | ||
| CB02 | Change of applicant information |
Address after: 266111 No.69, Jinsheng Second Road, Chengyang District, Qingdao, Shandong Province Applicant after: Qingdao Huashida Machinery Co., Ltd Address before: 266000, No. 3, No. 12, East Jinling Road, Qingdao, Chengyang, Shandong Applicant before: QINGDAO HUASHIDA MACHINERY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170912 |
|
| WW01 | Invention patent application withdrawn after publication |