CN206718607U - A kind of far infrared polyolefin pipe - Google Patents

A kind of far infrared polyolefin pipe Download PDF

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Publication number
CN206718607U
CN206718607U CN201720517705.XU CN201720517705U CN206718607U CN 206718607 U CN206718607 U CN 206718607U CN 201720517705 U CN201720517705 U CN 201720517705U CN 206718607 U CN206718607 U CN 206718607U
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far infrared
polyolefin
layer
connection
pipe
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CN201720517705.XU
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刘志光
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Abstract

The utility model discloses a kind of far infrared polyolefin pipe, including tubing body, the tubing body is followed successively by polyolefin layer, far infrared layer, adhesive linkage, oxidation prevention layer from inside to outside, and the polyolefin layer, far infrared layer, adhesive linkage, the thickness ratio of oxidation prevention layer are 1:(0.1‑1):(0.01‑0.2):(0.01‑0.2).Far infrared polyolefin pipe provided by the utility model contains far-infrared material, can be radiation infrared.Far infrared can activate macromolecular water into micromolecular water after discharging, beneficial to health.The utility model prevents the infiltration of outside oxygen molecule by composite oxygen barrier layer, forms the operation of pipe-line system anaerobic, for free-standing water system, will not produce and ooze oxygen and cause metalwork in system to corrode.The coefficient of viscosity for reducing water simultaneously improves the flow velocity of water and achieves preferable technique effect.

Description

A kind of far infrared polyolefin pipe
Technical field
It the utility model is related to floor heating, hot and cold water, water purification, industry, solar energy tubing field, more particularly to a kind of far infrared Floor heating, drinking water, water purification tubing.
Background technology
It is well known that in use, there is short, installation difficulty of perishable arbor, service life etc. in metallic conduit Problem.Plastic conduit substituted metal pipeline turns into trend, has the function that in work China Democratic National Construction Association field irreplaceable.Plastic conduit energy Cross and be widely used in the fields such as plumbing, HVAC pipe-line system, chemical pipeline, fuel gas transmission system.Conventional plastics Tubing includes:UPVC pipes, CPVC pipes, PE pipes, PAP pipes, PE-X pipes, PP-B pipes, PP-R pipes, PB pipes, ABS pipes, steel plastic compount Pipe, fiberglass reinforced pipe etc..
In June, 2014, the General Office of the State Council issues《Strengthen the instruction of City Buried Pipeline implementation management》, plan More perfect City Buried Pipeline system is built up with 10 years, proposes to carry out underground pipe gallery examination 36 big and medium-sized cities Point engineering.As underground pipe gallery is written into " 13 " planning, the whole nation is expected to start underground pipe gallery construction spring tide.Underground integrated pipe Corridor covers the pipelines such as electric power, communication, plumbing, combustion gas, heating power.
The market of civilian plastic pipe for another example, cross down south and be thought winter warmer moistening always, and since A southern snow disaster has thoroughly overturned this idea within 2008.The average low temperature in this several years winters of southern area have dropped Several years, the especially Yangtze river basin, winter temperature is nearly all subzero, and plus southern high humidity, winter clothing is moister, people's sense It is more serious by cold body-sensing.Because southern winter temperature persistently drops, many consumers have begun to selection and existed within this several years Floor heating is installed in family.Southern heating market, which is also in, just starts the development phase.
Existing market plastic pipe still has substantial amounts of market potential, but has higher requirement to tubing.In the past 20 In development for many years, the function of plastic pipe further improves.Pass through pipe material and the compounding of functional material, the property of tubing It can further be lifted, and generate new function.Such as glass PP-R, PAP etc..
This patent adds far infrared layer and oxidation prevention layer in past plastic pipe technique, can be radiated in heating pair The beneficial far infrared of human body, far infrared promote blood circulation of human body, improve function of human body, and it is small molecule to change macromolecular water Water.
Plastic pipe oozes oxygen with certain.With the rise of temperature, the oxygen content of hot water increases therewith in plastic conduit Add.Plastic pipe to ooze oxygen also therefore more obvious.Related data is shown:When the hot water temperature that plastic tube is transmitted is 40 DEG C When, plastic pipe oozes oxygen rate more than 0.1mg/ (Lday), this by the metal heater in heating system, metal valve, Pipe fitting, radiator, water pump etc. produce heavy corrosion.Oxidation prevention layer can prevent oxygen molecule by preventing the oxidation of metal.
Utility model content
In order to solve prior art problem, the utility model provides a kind of far infrared polyolefin pipe, including tubing body, The tubing body is followed successively by polyolefin layer, far infrared layer, adhesive linkage, oxidation prevention layer, the polyolefin layer, far infrared from inside to outside Layer, adhesive linkage, the thickness ratio of oxidation prevention layer are 1:(0.1-1):(0.01-0.2): (0.01-0.2).
In some embodiments, the nominal outside diameter of the tubing body is 8-400mm.
In some embodiments, the nominal outside diameter of the tubing body be 8,10,12,16,20,25,32,40,50, 63rd, 75,90,110,125,140,160,180,200,225,250,280,325,355, one kind in 400mm.
In some embodiments, the nominal outside diameter of the tubing body is 10mm.
In some embodiments, the nominal outside diameter of the tubing body is 16mm.
In some embodiments, the nominal outside diameter of the tubing body is 200mm.
In some embodiments, the connected mode that the connector of the tubing body uses connects for hot-melt adhesive paste, electric smelting Connect or at least one of mechanically connect.
In some embodiments, the hot-melt adhesive paste is selected from melting connection, hot melt spigot-and-socket connection, hot melt saddle company At least one of connect.
In some embodiments, the electric smelting is connected as electro-fusion socket connection and/or electric smelting saddle type connection.
In some embodiments, the mechanically connection is flexibly connected selected from spigot-and-socket, flange connects, pipe clamp connects, At least one of steel modeling transit joint connection.
Far infrared polyolefin pipe provided by the utility model contains far-infrared material, can be radiation infrared.It is remote red Outside line can activate macromolecular water into micromolecular water after discharging, beneficial to health.The utility model passes through compound resistance Oxygen layer, the infiltration of outside oxygen molecule is prevented, form the operation of pipe-line system anaerobic, for free-standing water system, will not produce Oozing oxygen causes metalwork in system to corrode.The coefficient of viscosity for reducing water simultaneously improves the flow velocity of water and achieves preferable technology Effect.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the cross-sectional structure schematic diagram of far infrared polyolefin pipe provided by the utility model;
Fig. 2 is the structural representation of far infrared polyolefin pipe provided by the utility model;
Each mark is as follows in figure, 1 is polyolefin layer, 2 is far infrared layer, 3 is adhesive linkage, 4 is oxidation prevention layer, 5 is tubing sheet Body.
Embodiment
The following detailed description of the present utility model for being preferable to carry out method of participation in the election and including embodiment can be more easily understood Content of the present utility model.Unless otherwise defined, all technologies used herein and scientific terminology has and the utility model The identical implication that one skilled in the art are generally understood that.When contradiction be present, the definition in this specification is defined.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific terminology) with the general understanding identical meaning with the those of ordinary skill in the utility model art.Also It should be understood that those terms defined in such as general dictionary should be understood that with the context of prior art The consistent meaning of meaning, and unless defined as here, will not be explained with the implication of idealization or overly formal.
The implication of "and/or" described in the utility model refers to the simultaneous situation of respective individualism or both In being included in.
The implication of " inside and outside " described in the utility model is referred to relative to equipment itself, inside sensing equipment Direction be interior, otherwise is outer, rather than the specific restriction to equipment mechanism of the present utility model.
As depicted in figs. 1 and 2, a kind of far infrared polyolefin pipe, including tubing body 5, the tubing body from it is interior to It is outer to be followed successively by polyolefin layer 1, far infrared layer 2, adhesive linkage 3, oxidation prevention layer 4, the polyolefin layer, far infrared layer, adhesive linkage, resistance oxygen The thickness ratio of layer is 1:(0.1-1):(0.01-0.2):(0.01-0.2).
The polyolefin layer is obtained by alpha-olefine polymerizing, and the instantiation of alpha-olefin includes but is not limited to:Ethene, propylene, 1- butylene, 1- amylenes, 1- hexenes, 1- heptene, 1- nonenes, 1- decene, 1- hendecenes, 1- laurylenes, 1- tridecylenes, 1- 14 Alkene, the pentaenes of 1- ten, 1- hexadecylenes, the alkene of 1- 17,1- octadecylenes, the alkene of 1- 19,1- icosa alkenes.The polyolefin layer can be by The alpha-olefine polymerizing of one pack system obtains, and can also be obtained by α-olefinic polymerization of more components.
When the polyolefin layer is polyethylene, low-density and LLDPE can be divided into according to the difference of density (abbreviation LDPE and LLDPE), medium density polyethylene (abbreviation MDPE) and high density polyethylene (HDPE) (abbreviation HDPE).The polyolefin layer It can also be ultra-high molecular weight polyethylene (UHMW-PE), crosslinked polyethylene (PE-X) or high temperature resistant non-cross-linked polyvinyl (PE- RT)。
When the polyolefin layer is polypropylene, the polyacrylic instantiation includes but is not limited to:I types polypropylene, II Type polypropylene, type III polypropylene, IV type polypropylene.
In some embodiments, the far infrared layer is made up of the polyolefin containing far-infrared material.It is described containing remote The polyolefin of infra-red material can be commercially available from commercial channels.
Polyolefin containing far-infrared material can be obtained by far-infrared functional master batch, the example of far-infrared functional master batch Purchase approach include but is not limited to Shanghai Hu Zheng Industrial Co., Ltd.s, Shandong Origine Nanomaterial Engineering Co., Ltd., Shanghai Six vertical Nono-material Science & Technology Ltd..
The far-infrared material commercially has a variety of existing products, and far-infrared material described in the utility model includes Tourmaline, opal, Strange ice stone, Qi Caishi.
Tourmaline is (Na, Ca) (Mg, Fe)3B3Al6Si6(O,OH,F)31Trigonal system silicate.Strange ice stone mainly contains Boron, a small amount of aluminium, magnesium, iron, lithium cyclic structure silicate.Active silica of the opal containing noncrystalline or colloid, also contains There is a small amount of Fe2O3、Al2O3, the silicate such as Mn and organic matter.Rare talent Shi Shi is using the oxide such as silicate and aluminium, iron as main component Inorganic porous material.
Far-infrared material can produce anion, and anion comes from the ionization of gas molecule.Far-infrared material has heat Electrical and piezoelectricity, therefore in the case where there is temperature and pressure change, with regard to the electrical potential difference between anion crystal can be caused, this Kind electrostatic is up to 1,000,000 electron-volts, so as to form electric field.High voltage ionizes the air in electric field, the electricity hit Son is attached on neighbouring water and oxygen molecule, and them is converted into negative aeroion.
In some embodiments, the material of the adhesive linkage is maleic anhydride stem grafting polyolefin.Maleic anhydride grafting is poly- Alkene can be from being commercially available, for example, modest three Chemical Industry Science Co., Ltd in Guangzhou, Shenzhen Hai'an plastic cement chemical industry are limited on the market Company etc..
The material of adhesive linkage of the present utility model is maleic anhydride stem grafting polyolefin, and its polar group contained can and hinder Electronic interactions in oxygen layer, its matrix resin and tubing body have preferable compatibility.Therefore the utility model compared with Good solves oxidation prevention layer and other layers of binding ability.
The instantiation of maleic anhydride stem grafting polyolefin includes but is not limited to, maleic anhydride grafted polyethylene, maleic anhydride Graft polypropylene.
In some embodiments, the oxidation prevention layer is made up of the polyolefin containing oxygen barrier material.It is described to contain resistance oxygen material The polyolefin of material can be commercially available from commercial channels.Such as French A Kema EVOH high-barriers resin, LG-DOW PVOH are high Barrier resins, Zhejiang Province, China hugeization SL-18 high-barriers resin, Kuraray EVOH-H171 high-barrier resins.
In some embodiments, the nominal outside diameter of the tubing body is 8-400mm.
In some embodiments, the nominal outside diameter of the tubing body be 8,10,12,16,20,25,32,40,50, 63rd, 75,90,110,125,140,160,180,200,225,250,280,325,355, one kind in 400mm.
In some embodiments, the nominal outside diameter of the tubing body is 10mm.
In some embodiments, the nominal outside diameter of the tubing body is 16mm.
In some embodiments, the nominal outside diameter of the tubing body is 200mm.
In some embodiments, the connected mode that the connector of the tubing body uses connects for hot-melt adhesive paste, electric smelting Connect or at least one of mechanically connect.
The connection of plastic conduit can be divided into two classes:One kind is melting connection, is primarily adapted for use in TPO plastic conduit Material, another kind of is bonding connection, suitable for the polar functionalities class material such as vinyl chloride, such as RPVC, superchlorination Polyvinyl chloride and ABS pipelines etc..TPO plastic conduit is due to the nonpolar feature of material, it is impossible to using bonding connection.
Main connection side when melting connection and bonding connection between plastic pipe and plastic pipe, pipe fitting and accessory Formula.When plastic pipe body is connected and is connected between metal tube and valve, mechanical connection can also be used, as flange connects Connect.The advantages of different connected modes has itself and limitation, user can according to the kind of pipeline, specification, operating pressure, make Suitable connected mode is selected with many factors such as place, laid condition, use environment and mixed economy costs.
TPO pipeline most important connected mode during melting connection, and the considerable advantage of TPO pipeline.It is molten It is the joint connected mode integrated with tubing to connect, and has permanent seal.Its welding principle is that polyolefin based materials ought be added When heat is in the range of melting temperature, material can be melted, if now the part that tubing or pipe fitting two melt fully is contacted, And appropriate pressure (thermal expansion caused by material itself in welding process of the source pressure of electric fusion welding) is maintained, after cooling It can combine together securely.
The most frequently used connected mode of TPO pressure pipeline has hot-melt adhesive paste to be connected with electric smelting.With special during hot-melt adhesive paste Heating tool, under stress, the position to be connected of TPO tubing or pipe fitting is heated, after melting it, removes heating tool, Pressure connects together two melting faces, keeps a period of time under a steady pressure, until joint cools down.Hot-melt adhesive paste includes Melting connection, hot melt spigot-and-socket connection connect with hot melt saddle.By to being embedded in electric melting pipe fittings inner surface in advance when electric smelting connects Heating wire be powered and make its heating so that the inner surface and tubing of pipe fitting or the outer surface of pipe fitting are melted respectively, cooling Reach the purpose of welding after to the desired time.The characteristics of electric smelting connects is easy to connect, rapid, and joint quality is good, extraneous Factor interference is small, using both economical on the less pipeline of bore.Electric smelting connection mainly includes electro-fusion socket connection and electric smelting Saddle connects.
Far infrared polyolefin pipe provided by the utility model can not use the socket joint connected mode of binding agent, because polyene Hydrocarbon materials are nonpolar, so far it has not been found that available binding agent can ensure to seal under stress.TPO pipe Road can not use threaded connection, and threaded connection relies on the caused compressive stres sealing between internal and external threads when tightening, because Stress relaxation is produced for the easy creep of polyolefin, cannot keep sealing again after stress relaxation.
In some embodiments, the hot-melt adhesive paste is selected from melting connection, hot melt spigot-and-socket connection, hot melt saddle company At least one of connect.
When far infrared polyolefin pipe provided by the utility model uses melting connection, by tubing flat end face, With stable pressure pressure on hot plate, after melting it, heating plate is removed, two melting faces firmly forces together rapidly, A period of time is kept under a steady pressure, until joint cools down.The polyolefin layer is polyethylene, polypropylene and polybutene Shi Junke is connected using heat-melting butt-joint mode.
The material of the technological parameters such as welding procedure temperature, welding pressure and the time of melting connection and plastic pipe is special Property is relevant, reference can be made to the relevant regulations of each pipeline kind.The welder equipment of melting connection should meet GB/T 20674.1- 2006 regulation.
Hot melt spigot-and-socket connection is to use the TPO inner surface of pipe fitting of the outer surface of TPO tubing and injection molding Stable pressure is pressed on heating tool, after melting it, removes heating tool, rapid to be inserted pipe end with stable pressure Enter in pipe fitting bellmouth, keep a period of time under a steady pressure, until joint cools down.
The connection of branch line is carried out when heating saddle connection on supervisor, saddle heating tool is heated into saddle pipe simultaneously The saddle face and supervisor's arc face to be connected of part, after melting it, remove saddle heating tool, rapid to use stable pressure by saddle Type pipe fitting is firmly pressed on tubing joint face, keeps a period of time under a steady pressure, until joint cools down.
In some embodiments, the electric smelting is connected as electro-fusion socket connection and/or electric smelting saddle type connection.
Electric smelting connection it is specific be it is easy to connect, rapid, joint quality is good, and the interference of external factor is small, less in bore Using both economical on pipeline, connect available for the polyolefin pipe or socket pipe fitting of different type and different melt flow rate Connect.
Electric smelting connection need to use special electric smelting connection equipment, and electric smelting connection equipment should meet GB/T 20674.2-2006 Regulation.Electric smelting connection equipment should be connected correctly with electric melting pipe fittings, and the voltage of electrified regulation and heat time should meet electric smelting company Pick tool and the regulation of electric melting pipe fittings manufacturing enterprise.Electric smelting connects cooling period, mobile link part or must not be applied on connector Add any external force.
Electro-fusion socket connection is that the electric melting pipe fittings of embedded resistors silk are enclosed on tubing or pipe fitting, electrified regulation electric melting pipe fittings Inner surface and tubing outer surface, its melting is connected as a single entity, until joint cool and solidify.
Electric smelting saddle type connection is that the saddle face of electric smelting saddle type pipe fitting is fixed on into supervisor's arc face to be connected, passes through electric melting saddle The inner surface of the Resistant heating pipe fitting buried in type pipe fitting and supervisor's arc face to be connected, make its melting be connected as a single entity, Zhi Daojie Head cooling and solidifying.
In some embodiments, the mechanically connection is flexibly connected selected from spigot-and-socket, flange connects, pipe clamp connects, At least one of steel modeling transit joint connection.
Flange connection is mainly used in TPO pipeline and the pipe fitting such as metallic conduit or valve, flowmeter, pressure gauge Connection.Flange is connected mainly by TPO flange, steel or aluminum lap joint flange, pad or sealing ring, bolt, nut Deng.By fastening bolt, nut when flange connects, make to be in close contact between flange, reach the purpose of sealed connection.Identical is gathered Connection between olefin plastics tubing can also use flange to connect, and simply the flange of two interconnections is polyolefin method Orchid, it is typically only used for the tubing connection of larger specification or needs the pipeline dismantled.
Far infrared polyolefin pipe provided by the utility model can be obtained by co-extrusion.
, it is necessary to special fastening means corresponding to using when being connected between pipeline, it is impossible to using open firing.When in temperature mistake When low, such as less than -5 DEG C, or wind speed relatively by force under conditions of heated or during electric smelting attended operation, should take safeguard measure or The technological parameter of adjustment connection equipment, such as take Windproof thermal insulation, pipe end closure or extend heat time measure.
Far infrared polyolefin pipe provided by the utility model can not only be applied to floor panel heating, moreover it is possible to be applied to Other fluid-transporting tubing fields, such as central air-conditioning pipe system, fire-fighting spraying pipeline system, water supply pipe in building, building row Water pipe, buried drain pipe, building and heating pipe, appendix, electrician and telecommunication protection sleeve pipe, industrial pipe, agricultural pipe etc..
The utility model is further illustrated with reference to specific embodiment.
Embodiment 1
A kind of far infrared polyolefin pipe, including tubing body, the tubing body be followed successively by from inside to outside polyolefin layer, Far infrared layer, adhesive linkage, oxidation prevention layer, the polyolefin layer, far infrared layer, adhesive linkage, the thickness ratio of oxidation prevention layer are 1:0.1: 0.01:0.01.The nominal outside diameter of the tubing body is 8mm.The connected mode that the connector of the tubing body uses is heat Molten connection, the hot-melt adhesive paste is melting connection.The material of the polyolefin layer is MDPE.
Embodiment 2
A kind of far infrared polyolefin pipe, including tubing body, the tubing body be followed successively by from inside to outside polyolefin layer, Far infrared layer, adhesive linkage, oxidation prevention layer, the polyolefin layer, far infrared layer, adhesive linkage, the thickness ratio of oxidation prevention layer are 1:1:0.2: 0.01.The nominal outside diameter of the tubing body is 12mm.The connected mode that the connector of the tubing body uses connects for hot melt Connect, the hot-melt adhesive paste connects for hot melt spigot-and-socket.The material of the polyolefin layer is the types of PE-RT II.
Embodiment 3
A kind of far infrared polyolefin pipe, including tubing body, the tubing body be followed successively by from inside to outside polyolefin layer, Far infrared layer, adhesive linkage, oxidation prevention layer, the polyolefin layer, far infrared layer, adhesive linkage, the thickness ratio of oxidation prevention layer are 1:0.1: 0.01:0.01.The nominal outside diameter of the tubing body is 20mm.The connected mode that the connector of the tubing body uses is heat Molten connection, the hot-melt adhesive paste connect for hot melt spigot-and-socket type.The material of the polyolefin layer is the types of PERT I.
Embodiment 4
A kind of far infrared polyolefin pipe, including tubing body, the tubing body be followed successively by from inside to outside polyolefin layer, Far infrared layer, adhesive linkage, oxidation prevention layer, the polyolefin layer, far infrared layer, adhesive linkage, the thickness ratio of oxidation prevention layer are 1:1:0.2: 0.01.The nominal outside diameter of the tubing body is 160mm.The connected mode that the connector of the tubing body uses connects for electric smelting Connect, the electric smelting is connected as electro-fusion socket connection.The material of the polyolefin layer is PP-R.
Embodiment 5
As shown in Fig. 2 a kind of far infrared polyolefin pipe, including tubing body 5, the tubing body is from inside to outside successively For polyolefin layer 1, far infrared layer 2, adhesive linkage 3, oxidation prevention layer 4, the polyolefin layer, far infrared layer, adhesive linkage, the thickness of oxidation prevention layer Degree is than being 1:1:0.2:0.2.The nominal outside diameter of the tubing body is 400mm.The company that the connector of the tubing body uses Mode is connect to connect for melting butt joint type.The material of the polyolefin layer is PP-RCT.

Claims (10)

1. a kind of far infrared polyolefin pipe, including tubing body, it is characterised in that the tubing body is followed successively by from inside to outside Polyolefin layer, far infrared layer, adhesive linkage, oxidation prevention layer, the polyolefin layer, far infrared layer, adhesive linkage, the thickness ratio of oxidation prevention layer are 1:(0.1-1):(0.01-0.2):(0.01-0.2).
2. far infrared polyolefin pipe as claimed in claim 1, it is characterised in that the nominal outside diameter of the tubing body is 8- 400mm。
3. far infrared polyolefin pipe as claimed in claim 1, it is characterised in that the nominal outside diameter of the tubing body be 8, 10、12、16、20、25、32、40、50、63、75、90、110、125、140、160、180、200、225、250、280、325、355、 One kind in 400mm.
4. far infrared polyolefin pipe as claimed in claim 1, it is characterised in that the nominal outside diameter of the tubing body is 10mm。
5. far infrared polyolefin pipe as claimed in claim 1, it is characterised in that the nominal outside diameter of the tubing body is 16mm。
6. far infrared polyolefin pipe as claimed in claim 1, it is characterised in that the nominal outside diameter of the tubing body is 200mm。
7. far infrared polyolefin pipe as claimed in claim 1, it is characterised in that the connected mode of the tubing body is heat At least one of molten connection, electric smelting connection or mechanical connection.
8. far infrared polyolefin pipe as claimed in claim 7, it is characterised in that the hot-melt adhesive paste connects selected from heat-melting butt-joint Connect, hot melt spigot-and-socket connects, heats at least one of saddle connection.
9. far infrared polyolefin pipe as claimed in claim 7, it is characterised in that the electric smelting is connected as electro-fusion socket connection And/or electric smelting saddle type connection.
10. far infrared polyolefin pipe as claimed in claim 7, it is characterised in that the mechanical connection is selected from spigot-and-socket At least one of flexible connection, flange connection, pipe clamp connection, steel modeling transit joint connection.
CN201720517705.XU 2017-05-11 2017-05-11 A kind of far infrared polyolefin pipe Expired - Fee Related CN206718607U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114179446A (en) * 2021-12-24 2022-03-15 天津市伟星新型建材有限公司 Long-acting oxygen-blocking floor heating pipeline with far infrared radiation function and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114179446A (en) * 2021-12-24 2022-03-15 天津市伟星新型建材有限公司 Long-acting oxygen-blocking floor heating pipeline with far infrared radiation function and preparation method thereof

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Granted publication date: 20171208