CN109572010A - A kind of production technology of plastic shell insulating tube - Google Patents
A kind of production technology of plastic shell insulating tube Download PDFInfo
- Publication number
- CN109572010A CN109572010A CN201811273090.6A CN201811273090A CN109572010A CN 109572010 A CN109572010 A CN 109572010A CN 201811273090 A CN201811273090 A CN 201811273090A CN 109572010 A CN109572010 A CN 109572010A
- Authority
- CN
- China
- Prior art keywords
- tube
- outer tube
- work inner
- inner tube
- plastic shell
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- 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
- B29C44/04—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities
-
- 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
- B29C44/188—Sealing off parts of the cavities
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of production technology of plastic shell insulating tube, which comprises the following steps: (1) continuously shaped using extrusion device；(2) Vacuum shaping cooling device sizing cooling work inner tube is utilized；(3) in the outer weekly interval of work inner tube and multiple support frames are fixed uniformly；(4) by the work inner tube set with support frame loaded in outer tube closed at one end；(5) open end of outer tube is fixed vertically upward；(6) using isocyanates and polyether polyol formula combination raw material, while additive and catalyst is added, four kinds of industrial chemicals is formed into hard polyaminoester stoste by proportion；Then the hard polyaminoester stoste is injected between work inner tube and outer tube by instillation process to foam；(7) ventilation hole is uniformly opened up on the tube wall of outer tube；(8) above-mentioned outer tube is fixed in reinforced plastics outer tube；(9) the filled polystyrene foamed material between outer tube and reinforced plastics outer tube.
Description
Technical field
The present invention relates to insulating tube production technical field more particularly to a kind of production technologies of plastic shell insulating tube.
Background technique
Recently as the continuous improvement of living standards of the people, northern area resident is constantly increased using the demand of central heating
Add, especially because living condition early period limits the existing residential building residential quarters of unused central heating；These existing inhabitations
Residential quarters are built because small internal road is without heat distribution pipeline planned position, central heating secondary network can not use direct-burried in cell
Laying largely can only lay heat distribution pipeline using aerial mode；Heat supply in winter is by area thermal substation as heat source in cell,
By overhead heat distribution pipeline by 50-70 DEG C of delivery to community resident user, since winter outdoor temperature is lower, pipeline exists
In transmission process, heating medium temperature is higher than pipe external environment temperature, and heat passes to surrounding air by the wall surface of heat supply pipeline,
This partial heat is known as heat dissipation of pipeline loss, at this moment just needs to use insulating tube to be conveyed；Insulating tube is insulated piping
Referred to as, insulating tube is used for the conveying of liquid, gas and other media, in petroleum, chemical industry, space flight, military affairs, central heating, center
Air-conditioning, municipal pipeline adiabatic heat-insulation engineering in play an important role；But the heat-conducting system of existing insulating tube it is higher,
Service life is shorter, and physical property is poor, poor thermal insulation property, heat loss are big, maintenance cost mostly etc..
Summary of the invention
The present invention exactly against the above technical problems, provides a kind of production technology of plastic shell insulating tube.
The present invention to achieve the above object, using following technical scheme: a kind of production technology of plastic shell insulating tube,
It is characterized in that, comprising the following steps:
(1) the work inner tube of the continuously shaped plastic shell insulating tube of extrusion device is utilized；
(2) Vacuum shaping cooling device sizing cooling work inner tube is utilized；
(3) in the outer weekly interval of work inner tube and multiple support frames are fixed uniformly；
(4) the work inner tube set with support frame is loaded in outer tube closed at one end using poling machine, and guarantees work
Reserve certain length of letting the hair grow in the both ends of inner tube；
(5) open end of outer tube is fixed vertically upward；
(6) using isocyanates and polyether polyol formula combination raw material, while additive and catalyst is added, by four kinds
Industrial chemicals forms hard polyaminoester stoste by proportion；Then by instillation process, injection should between work inner tube and outer tube
Hard polyaminoester stoste foams, and adds foaming agent and polyurethane foam stabilizer, while in work inner tube when foaming is perfused
Closed mould is installed additional with the both ends of outer tube, so that polyurethane stock solution carries out free pressure foaming in closed space, reaches highly dense
The hard polyaminoester form of degree；
(7) ventilation hole is uniformly opened up on the tube wall of outer tube；
(8) above-mentioned outer tube is fixed in reinforced plastics outer tube, and the internal diameter of reinforced plastics outer tube is greater than the outer diameter of outer tube；
(9) the filled polystyrene foamed material between outer tube and reinforced plastics outer tube.
The extrusion device that uses in the step (1) is double screw extruder, and the screw rod of double screw extruder
Revolving speed is 20-35r/min.
The sizing mode of the Vacuum shaping cooling device is outer diameter sizing, and the type of cooling is cooling for immersion type.
In the Vacuum shaping cooling device temperature of cooling water be 15 DEG C hereinafter, and the vacuum degree of type-approval process be set as
25-30kPa。
In the step (5), the open end of outer tube is fixed upward, and carry out preheating in 1-2 or 2-3 hours, the preheating
Temperature is 150-175 DEG C, 175-185 DEG C or 190-200 DEG C, carries out the heat preservation of 30-40min after preheat.
The beneficial effects of the present invention are: polyurethane foam raw material provided by the invention uses isocyanates and polyether polyol
Formula combination raw material, while additive and catalyst are used, the heat preservation of hard high density polyurethane is formed after reaching polyurethane foam
Layer forms the high density polyurethane foaming layer for being higher than original polyurethane foam density using mold close foam process, in work
Manage outer tube between this kind high density polyurethane foaming layer make preparation insulating tube thermal insulation property it is preferable, heat loss compared with
It is small, thereby reduce maintenance cost.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
A kind of production technology of plastic shell insulating tube, which comprises the following steps:
(1) the work inner tube of the continuously shaped plastic shell insulating tube of extrusion device is utilized；
(2) Vacuum shaping cooling device sizing cooling work inner tube is utilized；
(3) in the outer weekly interval of work inner tube and multiple support frames are fixed uniformly；
(4) the work inner tube set with support frame is loaded in outer tube closed at one end using poling machine, and guarantees work
Reserve certain length of letting the hair grow in the both ends of inner tube；
(5) open end of outer tube is fixed vertically upward；
(6) using isocyanates and polyether polyol formula combination raw material, while additive and catalyst is added, by four kinds
Industrial chemicals forms hard polyaminoester stoste by proportion；Then by instillation process, injection should between work inner tube and outer tube
Hard polyaminoester stoste foams, and adds foaming agent and polyurethane foam stabilizer, while in work inner tube when foaming is perfused
Closed mould is installed additional with the both ends of outer tube, so that polyurethane stock solution carries out free pressure foaming in closed space, reaches highly dense
The hard polyaminoester form of degree；
(7) ventilation hole is uniformly opened up on the tube wall of outer tube；
(8) above-mentioned outer tube is fixed in reinforced plastics outer tube, and the internal diameter of reinforced plastics outer tube is greater than the outer diameter of outer tube；
(9) the filled polystyrene foamed material between outer tube and reinforced plastics outer tube.
The extrusion device that uses in the step (1) is double screw extruder, and the screw rod of double screw extruder
Revolving speed is 20-35r/min.
The sizing mode of the Vacuum shaping cooling device is outer diameter sizing, and the type of cooling is cooling for immersion type.
In the Vacuum shaping cooling device temperature of cooling water be 15 DEG C hereinafter, and the vacuum degree of type-approval process be set as
25-30kPa。
In the step (5), the open end of outer tube is fixed upward, and carry out preheating in 1-2 or 2-3 hours, the preheating
Temperature is 150-175 DEG C, 175-185 DEG C or 190-200 DEG C, carries out the heat preservation of 30-40min after preheat.
A kind of production technology of the plastic shell insulating tube of embodiment 1, comprising the following steps:
(1) the work inner tube of the continuously shaped plastic shell insulating tube of extrusion device is utilized；
(2) Vacuum shaping cooling device sizing cooling work inner tube is utilized；
(3) in the outer weekly interval of work inner tube and multiple support frames are fixed uniformly；
(4) the work inner tube set with support frame is loaded in outer tube closed at one end using poling machine, and guarantees work
Reserve certain length of letting the hair grow in the both ends of inner tube；
(5) open end of outer tube is fixed vertically upward；
(6) using isocyanates and polyether polyol formula combination raw material, while additive and catalyst is added, by four kinds
Industrial chemicals forms hard polyaminoester stoste by proportion；Then by instillation process, injection should between work inner tube and outer tube
Hard polyaminoester stoste foams, and adds foaming agent and polyurethane foam stabilizer, while in work inner tube when foaming is perfused
Closed mould is installed additional with the both ends of outer tube, so that polyurethane stock solution carries out free pressure foaming in closed space, reaches highly dense
The hard polyaminoester form of degree；
(7) ventilation hole is uniformly opened up on the tube wall of outer tube；
(8) above-mentioned outer tube is fixed in reinforced plastics outer tube, and the internal diameter of reinforced plastics outer tube is greater than the outer diameter of outer tube；
(9) the filled polystyrene foamed material between outer tube and reinforced plastics outer tube.
The extrusion device that uses in the step (1) is double screw extruder, and the screw rod of double screw extruder
Revolving speed is 20r/min.
The sizing mode of the Vacuum shaping cooling device is outer diameter sizing, and the type of cooling is cooling for immersion type.
In the Vacuum shaping cooling device temperature of cooling water be 15 DEG C hereinafter, and the vacuum degree of type-approval process be set as
25kPa。
In the step (5), the open end of outer tube is fixed upward, and carry out preheating in 1-2 hours, which is
150-175 DEG C, the heat preservation of 30min is carried out after preheat.
A kind of production technology of the plastic shell insulating tube of embodiment 2, which comprises the following steps:
(1) the work inner tube of the continuously shaped plastic shell insulating tube of extrusion device is utilized；
(2) Vacuum shaping cooling device sizing cooling work inner tube is utilized；
(3) in the outer weekly interval of work inner tube and multiple support frames are fixed uniformly；
(4) the work inner tube set with support frame is loaded in outer tube closed at one end using poling machine, and guarantees work
Reserve certain length of letting the hair grow in the both ends of inner tube；
(5) open end of outer tube is fixed vertically upward；
(6) using isocyanates and polyether polyol formula combination raw material, while additive and catalyst is added, by four kinds
Industrial chemicals forms hard polyaminoester stoste by proportion；Then by instillation process, injection should between work inner tube and outer tube
Hard polyaminoester stoste foams, and adds foaming agent and polyurethane foam stabilizer, while in work inner tube when foaming is perfused
Closed mould is installed additional with the both ends of outer tube, so that polyurethane stock solution carries out free pressure foaming in closed space, reaches highly dense
The hard polyaminoester form of degree；
(7) ventilation hole is uniformly opened up on the tube wall of outer tube；
(8) above-mentioned outer tube is fixed in reinforced plastics outer tube, and the internal diameter of reinforced plastics outer tube is greater than the outer diameter of outer tube；
(9) the filled polystyrene foamed material between outer tube and reinforced plastics outer tube.
The extrusion device that uses in the step (1) is double screw extruder, and the screw rod of double screw extruder
Revolving speed is 35r/min.
The sizing mode of the Vacuum shaping cooling device is outer diameter sizing, and the type of cooling is cooling for immersion type.
In the Vacuum shaping cooling device temperature of cooling water be 15 DEG C hereinafter, and the vacuum degree of type-approval process be set as
30kPa。
In the step (5), the open end of outer tube is fixed upward, and carry out preheating in 2-3 hours, which is
175-185 DEG C, the heat preservation of 40min is carried out after preheat.
Above example is to the present invention have been described in detail, it is clear that the present invention implements not by the limit of aforesaid way
System as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved directly applies to it
Its occasion, it is within the scope of the present invention.
Claims (5)
1. a kind of production technology of plastic shell insulating tube, which comprises the following steps:
(1) the work inner tube of the continuously shaped plastic shell insulating tube of extrusion device is utilized；
(2) Vacuum shaping cooling device sizing cooling work inner tube is utilized；
(3) in the outer weekly interval of work inner tube and multiple support frames are fixed uniformly；
(4) the work inner tube set with support frame is loaded in outer tube closed at one end using poling machine, and guarantees work inner tube
Both ends reserve certain length of letting the hair grow；
(5) open end of outer tube is fixed vertically upward；
(6) using isocyanates and polyether polyol formula combination raw material, while additive and catalyst is added, by four kinds of chemical industry
Raw material forms hard polyaminoester stoste by proportion；Then the hard is injected between work inner tube and outer tube by instillation process
Polyurethane stock solution foams, and adds foaming agent and polyurethane foam stabilizer, while in work inner tube and outer when being perfused foaming
The both ends of pipe install closed mould additional, so that polyurethane stock solution carries out free pressure foaming in closed space, reach highdensity
Hard polyaminoester form；
(7) ventilation hole is uniformly opened up on the tube wall of outer tube；
(8) above-mentioned outer tube is fixed in reinforced plastics outer tube, and the internal diameter of reinforced plastics outer tube is greater than the outer diameter of outer tube；
(9) the filled polystyrene foamed material between outer tube and reinforced plastics outer tube.
2. a kind of production technology of plastic shell insulating tube according to claim 1, which is characterized in that the step (1)
The middle extrusion device used is double screw extruder, and the revolving speed of the screw rod of double screw extruder is 20-35r/min.
3. a kind of production technology of plastic shell insulating tube according to claim 1, which is characterized in that the Vacuum shaping
The sizing mode of cooling device is outer diameter sizing, and the type of cooling is cooling for immersion type.
4. a kind of production technology of plastic shell insulating tube according to claim 3, which is characterized in that the Vacuum shaping
In cooling device the temperature of cooling water be 15 DEG C hereinafter, and the vacuum degree of type-approval process be set as 25-30kPa.
5. a kind of production technology of plastic shell insulating tube according to claim 1, which is characterized in that the step (5)
In, the open end of outer tube is fixed upward, and carry out preheating in 1-2 or 2-3 hours, which is 150-175 DEG C, 175-
185 DEG C or 190-200 DEG C, the heat preservation of 30-40min is carried out after preheat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811273090.6A CN109572010A (en) | 2018-10-30 | 2018-10-30 | A kind of production technology of plastic shell insulating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811273090.6A CN109572010A (en) | 2018-10-30 | 2018-10-30 | A kind of production technology of plastic shell insulating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109572010A true CN109572010A (en) | 2019-04-05 |
Family
ID=65921276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811273090.6A Pending CN109572010A (en) | 2018-10-30 | 2018-10-30 | A kind of production technology of plastic shell insulating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109572010A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815883A (en) * | 2019-11-15 | 2020-02-21 | 青岛塑友塑料机械有限公司 | Preparation process of polyethylene vacuum anti-corrosion heat-insulation pipe |
| CN114484091A (en) * | 2022-01-22 | 2022-05-13 | 绍兴高新技术产业开发区迪荡新城投资发展有限公司 | High strength resistance to compression road administration drainage engineering is with construction tubular product |
| CN115183065A (en) * | 2022-06-27 | 2022-10-14 | 浙江锦宇枫叶管业有限公司 | High-sealing high-strength PE gas pipe and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089104A (en) * | 2014-06-30 | 2014-10-08 | 吴开勇 | Method for producing foaming heat-preservation pipe and foaming heat-preservation pipe |
| CN105333268A (en) * | 2015-12-08 | 2016-02-17 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Heat preservation pipe fitting with high-density hard polyurethane and foaming method thereof |
-
2018
- 2018-10-30 CN CN201811273090.6A patent/CN109572010A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089104A (en) * | 2014-06-30 | 2014-10-08 | 吴开勇 | Method for producing foaming heat-preservation pipe and foaming heat-preservation pipe |
| CN105333268A (en) * | 2015-12-08 | 2016-02-17 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Heat preservation pipe fitting with high-density hard polyurethane and foaming method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815883A (en) * | 2019-11-15 | 2020-02-21 | 青岛塑友塑料机械有限公司 | Preparation process of polyethylene vacuum anti-corrosion heat-insulation pipe |
| CN114484091A (en) * | 2022-01-22 | 2022-05-13 | 绍兴高新技术产业开发区迪荡新城投资发展有限公司 | High strength resistance to compression road administration drainage engineering is with construction tubular product |
| CN114484091B (en) * | 2022-01-22 | 2024-04-05 | 绍兴高新技术产业开发区迪荡新城投资发展有限公司 | Construction pipe for high-strength compression-resistant road administration drainage engineering |
| CN115183065A (en) * | 2022-06-27 | 2022-10-14 | 浙江锦宇枫叶管业有限公司 | High-sealing high-strength PE gas pipe and preparation process thereof |
| CN115183065B (en) * | 2022-06-27 | 2024-03-08 | 浙江锦宇枫叶管业有限公司 | High-sealing high-strength PE gas pipe and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109572010A (en) | A kind of production technology of plastic shell insulating tube | |
| CN106750093A (en) | A kind of refrigerator for the polyurethane foam system of refrigerator and based on it | |
| CN103727355A (en) | Deformable compound insulation plate and manufacturing method thereof | |
| CN107163220A (en) | A kind of polyurethane foam system and the refrigerator based on it | |
| CN111578004A (en) | Fiber-reinforced heat-insulation composite hose and manufacturing method thereof | |
| CN111442140A (en) | Nano-antibacterial PE water supply pipeline and manufacturing process thereof | |
| CN205781717U (en) | A kind of heat insulating material in band reflecting layer | |
| CN104945799A (en) | Thermal insulation plastic pipeline | |
| CN105972340A (en) | Reinforced antibacterial PPR pipe | |
| CN207005476U (en) | A kind of PP R polyurethane thermal pipes | |
| CN105351634A (en) | Thermal insulation pipe with high-density polyethylene wound outer protecting pipe and manufacturing method | |
| KR101716234B1 (en) | Manufacturing apparatus for insulation and flame retardants of polystyrene foam | |
| CN201836601U (en) | Novel thermal insulation pipe | |
| AU2013320302B2 (en) | An insulating phenolic foam | |
| CN209557894U (en) | House ornamentation heat-insulating pipe | |
| EP2708343B1 (en) | An insulating phenolic foam | |
| CN209022482U (en) | A kind of soft thermal insulating pipe continuous production device | |
| CN202328560U (en) | Heat preservation sleeve structure | |
| CN104089146A (en) | Deformable composite insulation board and production method thereof | |
| CN108822488A (en) | Fibre-reinforced environmentally friendly phenolic aldehyde thermal insulation material of raw bamboo and preparation method thereof | |
| CN207316357U (en) | A kind of two halves formula insulating tube | |
| CN217381980U (en) | Novel high strength PVC pipe | |
| CN205896562U (en) | Integral type friendly air conditioner insulating tube | |
| CN115071188A (en) | Deep geothermal heat-insulation composite pipeline and preparation method thereof | |
| CN105799111A (en) | Production process and device of solar foaming insulation pipe |
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 | ||
| CB02 | Change of applicant information |
Address after: 301800 Baodi District, East Industrial Zone (Tianjin (Tianjin) thermal energy equipment development Co., Ltd.) Applicant after: CIC (Tianjin) Intelligent Pipeline Co., Ltd. Address before: 301800 Baodi District, East Industrial Zone (Tianjin (Tianjin) thermal energy equipment development Co., Ltd.) Applicant before: CIC (Tianjin) Thermal Power Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |