CN105504456A - Cold-proof and frost-resistant multilayer blow-off pipe - Google Patents
Cold-proof and frost-resistant multilayer blow-off pipe Download PDFInfo
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- CN105504456A CN105504456A CN201610030600.1A CN201610030600A CN105504456A CN 105504456 A CN105504456 A CN 105504456A CN 201610030600 A CN201610030600 A CN 201610030600A CN 105504456 A CN105504456 A CN 105504456A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- 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
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- 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
-
- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
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Abstract
The invention provides a frost-resistant composite blow-off pipe, comprising a pipe body, wherein the pipe body comprises a PE (polyethylene) layer serving as a main body, a graphite layer is arranged in the PE layer, a hydrophobic corrosion-resistant layer is arranged in the graphite layer, a temperature adjusting layer is arranged outside the PE layer, a thermal insulation layer is arranged outside the temperature adjusting layer, a PVDF (polyvinylidene fluoride) layer is arranged outside the thermal insulation layer, and a frost-proof layer is arranged outside the PVDF layer. The blow-off pipe provided by the invention is compounded with a multilayer structure, and is a cold-proof and frost-resistant multilayer blow-off pipe with a long service life.
Description
Technical field
The present invention relates to a kind of blow-off pipe, be specifically related to a kind of cold-proofly resistance toly freeze multilayer blow-off pipe.
Background technology
Plastic pipe is compared with the pipelines such as traditional cast iron pipe, galvanized steel pipe, cement pipe, there is energy-saving material-saving, environmental protection, high-strength light, corrosion-resistant, the advantage such as inner wall smooth non-scaling, construction and maintenance is easy, long service life, be widely used in construction industry, municipal administration, industry and the agriculture fields such as building water supply and drainage, town and country plumbing, gas, electric power and cable jacket, industrial fluids conveying, agricultural irrigation.Plastic conduit is an important branch in the numerous integral part of chemical building material, from the difference classification using chemical materials, plastic conduit can be divided into polyethylene (PE) pipe, polyvinyl chloride (PVC) pipe, polypropylene (PP) pipe, ABS pipe, polybutene (PB) pipe etc.
PE pipeline has excellent performance, and construction is simple, reliable, easy to maintenance, long service life, and the advantages such as cost of investment is low, are used in public works, residential quarters embedded underground draining blowdown at present widely; The pre-buried pipeline of motorway; Farmland water conservancy irrigation water delivery, water drainage; Chemical industry, mine are used for the aspects such as the conveying of fluid.Current PE plastic conduit, especially heavy caliber PE draining with no pressure blow-off pipe (PE pipe) development is swift and violent.
Blow-off pipe is compared with water shoot, higher to the requirement of pipeline, the sewage of discharging in blow-off pipe is compared to the water quality of common water shoot blowdown, its pollution level is even more serious, the solid particulates such as a large amount of mud, dirt are often comprised in the sewage discharged in blow-off pipe, long-term and the pipe friction of these solid particulates makes more and more thinner, the coarse injustice of tube wall, there will be line clogging or drainage, and even also comprise the chemical of some severe corrosives in sewage, very serious to the damage of pipeline, like this, integrate, the work-ing life of pipeline can be had a strong impact on.Further, along with the difference being different from region in season, some blow-off pipes can be used in cold environment, pipeline can be made to endure cold, thus also can affect the work-ing life of pipeline under being in low temperature for a long time.
Therefore, in order to meet the demand in market, in order to socioeconomic development, being necessary, developing the cold-proof resistance to of a kind of long service life and freezing blow-off pipe.
Summary of the invention
Goal of the invention: the object of the invention is to solve the deficiencies in the prior art, provides the cold-proof resistance to of a kind of long service life to freeze multilayer blow-off pipe.
Technical scheme: in order to realize above object, the present invention by the following technical solutions.
A kind of anti-freeze type compound drainage pipe, comprise body, described body comprises the PE layer as main body, described PE layer inside is provided with graphite linings, described graphite linings inside is provided with hydrophobic anti-corrosion layer, the outside of described PE layer is provided with temperature regulation layer, and the outside of described temperature regulation layer is provided with thermal insulation layer, and described thermal insulation layer outside is provided with PVDF layer described PVDF layer outside and is provided with frost retarding layer; Described PE layer comprises following component by weight ratio:
PE:100-120 part;
EVA:8-10 part;
PP:8-10 part;
FEP:3-5 part;
Novolac epoxy: 6-8 part;
Freeze-thaw stabiliser: 1-3 part;
Silicon powder: 4-6 part;
Ethylene glycol: 4-6 part;
Titanium dioxide: 1-3 part;
Polyvinyl formal acetal: 3-5 part;
ACRYLIC EMULSION: 6-8 part;
Silicon carbide: 2-3 part;
Norbide: 1-3 part;
Carbon black: 3-5 part;
Talcum powder: 2-3 part;
Mica powder: 2-4 part;
Polynite: 2-3 part;
Polymethylmethacrylate: 6-8 part;
Polyphenylene sulfide: 3-5 part;
PET:10-12 part;
Poly glycol monomethyl ether: 14-16 part;
Polyetheretherketonefiber fiber: 2-4 part;
Nano silicon: 2-4 part;
Nano aluminium oxide: 1-2 part;
Methyl hydroxyethylcellulose: 0.3-0.5 part;
Vinyl three tert-butyl peroxide silane: 0.5-0.9 part.
Described hydrophobic anti-corrosion layer is polytetrafluoroethylene floor, and the thickness of described hydrophobic anti-corrosion layer is 1.2-1.4mm.Tetrafluoroethylene; have splendid corrosion resistance and water-repellancy, chemical property is highly stable, hydrochloric acid, sulfuric acid, nitric acid and chloroazotic acid that ability is seethed with excitement; also the various concentrated base of ability and organic solvent; Applicable temperature-200 DEG C-260 DEG C, decomposition temperature is 415 DEG C, therefore can prevent the deep-etching of chemical in sewage; protect pipeline further; this material has splendid hydrophobicity simultaneously, and therefore sewage discharge is relatively more smooth, and blocking is less likely to occur.
The thickness of described graphite linings is 0.8-1.2mm.
Described temperature regulation layer is that temperature regulates layer of fibers, and the thickness of described temperature regulation layer is 0.8-1.0mm.Outlast temperature can be adopted to regulate fiber, and this temperature regulates fiber to have fabulous sanitation performance, also has extremely comfortable temperature buffer performance, can well play the effect regulating temperature.
Described thermal insulation layer is rubber-plastic sponge layer, and the thickness of described thermal insulation layer is 0.8-1.2mm.Rubber-plastic sponge is a kind of excellent environment protecting thermal insulating material, also has excellent elasticity, thus can reduce hot water pipeline vibration in use and resonance to greatest extent, has good in property, toughness and flame retardant properties.The thickness of described PVDF layer is 1.2-1.4mm.
Described frost retarding layer is linear epoxy antifreezing dope layer, and the thickness of described frost retarding layer is 0.6-0.8mm.Adopt the linear epoxy antifreezing dope of commercially available H53-30.
The inner wall smooth of described body, the outer wall of described body is provided with helical corrugation.Inner wall smooth can make sewage flow smooth and easy, and prevent blocking, outer wall is provided with helical corrugation, adds frictional force, can be anti-skidding, is convenient to transport simultaneously, uses, also prevent scratch to a certain extent.
The preparation method of described PE layer is as follows:
1) take described each component according to proportioning, put into dehumidifying hot air dryer after mixing and carry out removal moisture drying process at 85-95 DEG C, till the water content of raw material is lower than 300mg/Kg;
2) mixed by the raw material after removal moisture drying process and pour Progressive symmetric erythrokeratodermia melt pelletization in twin screw extruder into, procession parameters is: head pressure is 8-10MPa, and machine barrel is divided into four sections, and temperature is followed successively by 165 DEG C, 175 DEG C, 185 DEG C, 195 DEG C; Die head divides into 4 sections, and temperature is followed successively by 215 DEG C, 220 DEG C, 225 DEG C, 230 DEG C, and forcing machine rotating speed is 20rad/min, and pulling speed is 100cm/min;
3) then under vacuum tightness is 0.2-0.3Mpa, adopt the mode of spraying cooling to carry out high-temperature quenching at 20 DEG C by cooling water tank, tubing can be cooled completely; Then shaping PE layer can be obtained through stamped mark, traction, cutting.
Waste pipe of the present invention, in preparation process, is mainly just the preparation of PE layer, carries out once-combinedly can obtaining required waste pipe after PE layer prepares with other layers again.
Beneficial effect: compared with prior art, the present invention has the following advantages:
1, water shoot of the present invention, is provided with graphite linings and temperature regulation layer, and the intensity of pipeline is strengthened greatly; Hydrophobic anti-corrosion layer is provided with in the inside of pipeline, the material of some severe corrosives in sewage can be avoided to corrode pipeline, waterproof simultaneously, drainage flow can be made more easy, sewage is not easily detained for a long time on inner-walls of duct, decrease the friction between solid particulate and tube wall, line clogging can be placed to a certain extent; The PDVF layer be provided with, enhances outside its chemical resistance, high thermal resistance, scale resistance, weathering resistance, resistance to x radiation x performance; Further, be provided with temperature regulation layer, thermal insulation layer and frost retarding layer, greatly strengthen its cold-proof resistance to ability of freezing, can normally use at low temperatures, in a word, composite structure makes blow-off pipe of the present invention greatly strengthen work-ing life;
2, blow-off pipe of the present invention, adopts tetrafluoroethylene as hydrophobic anti-corrosion layer, greatly improves hydrophobicity and the erosion resistance of tubing, extend the work-ing life of tubing further;
3, water shoot of the present invention, the material that tubing uses is all asepsis environment-protecting material, makes the environmentally safe of tubing own.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of the embodiment of the present invention;
In figure: the hydrophobic anti-corrosion layer of 1-, 2-graphite linings, 3-PE layer, 4-temperature regulation layer, 5-thermal insulation layer, 6-PVDF layer, 7-frost retarding layer.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail; but illustrate that protection scope of the present invention is not limited to the concrete scope of the present embodiment simultaneously; based on the embodiment in the present invention; those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
embodiment 1
As shown in Figure 1:
A kind of anti-freeze type compound drainage pipe, comprise body, described body comprises the PE layer 3 as main body, and described PE layer 3 inside is provided with graphite linings 2, and described graphite linings 2 inside is provided with hydrophobic anti-corrosion layer 1, the outside of described PE layer 3 is provided with temperature regulation layer 4, the outside of described temperature regulation layer 4 is provided with thermal insulation layer 5, and described thermal insulation layer 5 outside is provided with PVDF layer 6, and described PVDF layer 6 outside is provided with frost retarding layer 7, the inner wall smooth of described body, the outer wall of described body is provided with helical corrugation.
Described hydrophobic anti-corrosion layer 1 is polytetrafluoroethylene floor, and the thickness of described hydrophobic anti-corrosion layer 1 is 1.2mm.
The thickness of described graphite linings 2 is 0.8mm.
Described temperature regulation layer 4 is temperature adjustment layer of fibers, and the thickness of described temperature regulation layer 4 is 0.8mm.
Described thermal insulation layer 5 is rubber-plastic sponge, and the thickness of described thermal insulation layer 5 is 0.8mm.
The thickness of described PVDF layer 6 is 1.2mm.
Described frost retarding layer 7 is linear epoxy antifreezing dope layer, and the thickness of described frost retarding layer 7 is 0.6mm.
Described PE layer 3 comprises following component by weight ratio:
PE:100 part;
EVA:8 part;
PP:8 part;
FEP:3 part;
Novolac epoxy: 6 parts;
FT-100 freeze-thaw stabiliser: 1 part;
Silicon powder: 4 parts;
Ethylene glycol: 4 parts;
Titanium dioxide: 1 part;
Polyvinyl formal acetal: 3 parts;
ACRYLIC EMULSION: 6 parts;
Silicon carbide: 2 parts;
Norbide: 1 part;
Carbon black: 3 parts;
Talcum powder: 2 parts;
Mica powder: 2 parts;
Polynite: 2 parts;
Polymethylmethacrylate: 68 parts;
Polyphenylene sulfide: 3 parts;
PET:10 part;
Poly glycol monomethyl ether: 14 parts;
Polyetheretherketonefiber fiber: 2 parts;
Nano silicon: 2 parts;
Nano aluminium oxide: 1 part;
Methyl hydroxyethylcellulose: 0.3 part;
Vinyl three tert-butyl peroxide silane: 0.5 part.
embodiment 2
As shown in Figure 1:
A kind of anti-freeze type compound drainage pipe, comprise body, described body comprises the PE layer 3 as main body, and described PE layer 3 inside is provided with graphite linings 2, and described graphite linings 2 inside is provided with hydrophobic anti-corrosion layer 1, the outside of described PE layer 3 is provided with temperature regulation layer 4, the outside of described temperature regulation layer 4 is provided with thermal insulation layer 5, and described thermal insulation layer 5 outside is provided with PVDF layer 6, and described PVDF layer 6 outside is provided with frost retarding layer 7, the inner wall smooth of described body, the outer wall of described body is provided with helical corrugation.
Described hydrophobic anti-corrosion layer 1 is polytetrafluoroethylene floor, and the thickness of described hydrophobic anti-corrosion layer 1 is 1.3mm.
The thickness of described graphite linings 2 is 1.0mm.
Described temperature regulation layer 4 is temperature adjustment layer of fibers, and the thickness of described temperature regulation layer 4 is 0.9mm.
Described thermal insulation layer 5 is rubber-plastic sponge, and the thickness of described thermal insulation layer 5 is 1.0mm.
The thickness of described PVDF layer 6 is 1.3mm.
Described frost retarding layer 7 is linear epoxy antifreezing dope layer, and the thickness of described frost retarding layer 7 is 0.7mm.
Described PE layer 3 comprises following component by weight ratio:
PE:110 part;
EVA:9 part;
PP:9 part;
FEP:4 part;
Novolac epoxy: 7 parts;
FT-100 freeze-thaw stabiliser: 2 parts;
Silicon powder: 5 parts;
Ethylene glycol: 5 parts;
Titanium dioxide: 2 parts;
Polyvinyl formal acetal: 4 parts;
ACRYLIC EMULSION: 7 parts;
Silicon carbide: 2.5 parts;
Norbide: 2 parts;
Carbon black: 4 parts;
Talcum powder: 2.5 parts;
Mica powder: 3 parts;
Polynite: 2.5 parts;
Polymethylmethacrylate: 7 parts;
Polyphenylene sulfide: 4 parts;
PET:11 part;
Poly glycol monomethyl ether: 15 parts;
Polyetheretherketonefiber fiber: 3 parts;
Nano silicon: 3 parts;
Nano aluminium oxide: 1.5 parts;
Methyl hydroxyethylcellulose: 0.4 part;
Vinyl three tert-butyl peroxide silane: 0.7 part.
embodiment 3
As shown in Figure 1:
A kind of anti-freeze type compound drainage pipe, comprise body, described body comprises the PE layer 3 as main body, and described PE layer 3 inside is provided with graphite linings 2, and described graphite linings 2 inside is provided with hydrophobic anti-corrosion layer 1, the outside of described PE layer 3 is provided with temperature regulation layer 4, the outside of described temperature regulation layer 4 is provided with thermal insulation layer 5, and described thermal insulation layer 5 outside is provided with PVDF layer 6, and described PVDF layer 6 outside is provided with frost retarding layer 7, the inner wall smooth of described body, the outer wall of described body is provided with helical corrugation.
Described hydrophobic anti-corrosion layer 1 is polytetrafluoroethylene floor, and the thickness of described hydrophobic anti-corrosion layer 1 is 1.4mm.
The thickness of described graphite linings 2 is 1.2mm.
Described temperature regulation layer 4 is temperature adjustment layer of fibers, and the thickness of described temperature regulation layer 4 is 1.0mm.
Described thermal insulation layer 5 is rubber-plastic sponge, and the thickness of described thermal insulation layer 5 is 1.2mm.
The thickness of described PVDF layer 6 is 1.4mm.
Described frost retarding layer 7 is linear epoxy antifreezing dope layer, and the thickness of described frost retarding layer 7 is 0.8mm.
Described PE layer 3 comprises following component by weight ratio:
PE:120 part;
EVA:10 part;
PP:10 part;
FEP:5 part;
Novolac epoxy: 8 parts;
FT-100 freeze-thaw stabiliser: 3 parts;
Silicon powder: 6 parts;
Ethylene glycol: 6 parts;
Titanium dioxide: 3 parts;
Polyvinyl formal acetal: 5 parts;
ACRYLIC EMULSION: 8 parts;
Silicon carbide: 3 parts;
Norbide: 3 parts;
Carbon black: 5 parts;
Talcum powder: 3 parts;
Mica powder: 4 parts;
Polynite: 3 parts;
Polymethylmethacrylate: 8 parts;
Polyphenylene sulfide: 5 parts;
PET:12 part;
Poly glycol monomethyl ether: 16 parts;
Polyetheretherketonefiber fiber: 4 parts;
Nano silicon: 4 parts;
Nano aluminium oxide: 2 parts;
Methyl hydroxyethylcellulose: 0.5 part;
Vinyl three tert-butyl peroxide silane: 0.9 part.
Being prepared as follows of PE layer 3 in above-described embodiment:
1) take described each component according to proportioning, put into dehumidifying hot air dryer after mixing and carry out removal moisture drying process at 85-95 DEG C, till the water content of raw material is lower than 300mg/Kg;
2) mixed by the raw material after removal moisture drying process and pour Progressive symmetric erythrokeratodermia melt pelletization in twin screw extruder into, procession parameters is: head pressure is 8-10MPa, and machine barrel is divided into four sections, and temperature is followed successively by 165 DEG C, 175 DEG C, 185 DEG C, 195 DEG C; Die head divides into 4 sections, and temperature is followed successively by 215 DEG C, 220 DEG C, 225 DEG C, 230 DEG C, and forcing machine rotating speed is 20rad/min, and pulling speed is 100cm/min;
3) then under vacuum tightness is 0.2-0.3Mpa, adopt the mode of spraying cooling to carry out high-temperature quenching at 20 DEG C by cooling water tank, tubing can be cooled completely; Then shaping PE layer 3 can be obtained through stamped mark, traction, cutting.PE layer 3 smooth surface prepared, without defects such as shrinkage cavities.
In above-described embodiment, graphite linings 2, PE layer 3, temperature regulation layer 4 carry out compound tense, adopt EVA resin to bond.
The blow-off pipe of above-described embodiment, based on PE pipe, material of main part is PE, cost is lower, also be provided with hydrophobic anti-corrosion layer 1, graphite linings 2, temperature regulation layer 4, thermal insulation layer 5, PVDF layer 6, frost retarding layer 7 simultaneously, compensate for the deficiency of PE tubing itself, enhance the performance such as cold-proof frost resistance, hydrophobicity, non-corrosibility, shock resistance, rigidity, intensity of pipeline, substantially prolongs its work-ing life.
Further, we carry out performance test to the PE layer 3 obtained:
Test result shows, the tensile yield strength > 25Mpa of the PE layer 3 of above-described embodiment; Elongation at break > 500%; 20 DEG C of hydrostatic strengths (100h): do not break impermeable; 80 DEG C of hydrostatic strengths (1000h): do not break impermeable; Oxidation induction time (200 DEG C) > 30min; And can the high temperature of resistance to 220 DEG C, the high pressure of resistance to 500KV; In addition, this PE layer 3 caught a cold 24 as a child at-20 DEG C, tested its performance, and find that the performance value of the aspects such as tensile yield strength, elongation at break, hydrostatic strength, oxidation induction time does not change substantially, therefore, its anti-freezing property is comparatively superior.Therefore, as the performance of the PE layer 3 of main body far away higher than the PE blow-off pipe (water shoot) of routine, thus compound drainage pipe overall performance of the present invention is caused also far away higher than the PE blow-off pipe (water shoot) of routine.
Blow-off pipe of the present invention, may be used for general sewage discharge, especially can be used for containing the more sewage discharge of solid particulate or the with serious pollution sewage discharge containing eroding chemical, especially may be used for the sewage discharge of cold district, use range is extensive.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its objective is to allow and is familiar with these those skilled in the art and can understands content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalents done by spirit of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (9)
1. an anti-freeze type compound drainage pipe, it is characterized in that: comprise body, described body comprises the PE layer (3) as main body, described PE layer (3) inside is provided with graphite linings (2), described graphite linings (2) inside is provided with hydrophobic anti-corrosion layer (1), the outside of described PE layer (3) is provided with temperature regulation layer (4), the outside of described temperature regulation layer (4) is provided with thermal insulation layer (5), described thermal insulation layer (5) outside is provided with PVDF layer (6), and described PVDF layer (6) outside is provided with frost retarding layer (7); Described PE layer (3) comprises following component by weight ratio:
PE:100-120 part;
EVA:8-10 part;
PP:8-10 part;
FEP:3-5 part;
Novolac epoxy: 6-8 part;
Freeze-thaw stabiliser: 1-3 part;
Silicon powder: 4-6 part;
Ethylene glycol: 4-6 part;
Titanium dioxide: 1-3 part;
Polyvinyl formal acetal: 3-5 part;
ACRYLIC EMULSION: 6-8 part;
Silicon carbide: 2-3 part;
Norbide: 1-3 part;
Carbon black: 3-5 part;
Talcum powder: 2-3 part;
Mica powder: 2-4 part;
Polynite: 2-3 part;
Polymethylmethacrylate: 6-8 part;
Polyphenylene sulfide: 3-5 part;
PET:10-12 part;
Poly glycol monomethyl ether: 14-16 part;
Polyetheretherketonefiber fiber: 2-4 part;
Nano silicon: 2-4 part;
Nano aluminium oxide: 1-2 part;
Methyl hydroxyethylcellulose: 0.3-0.5 part;
Vinyl three tert-butyl peroxide silane: 0.5-0.9 part.
2. anti-freeze type compound drainage pipe according to claim 1, is characterized in that: described hydrophobic anti-corrosion layer (1) is polytetrafluoroethylene floor, and the thickness of described hydrophobic anti-corrosion layer (1) is 1.2-1.4mm.
3. anti-freeze type compound drainage pipe according to claim 1, is characterized in that: the thickness of described graphite linings (2) is 0.8-1.2mm.
4. anti-freeze type compound drainage pipe according to claim 1, is characterized in that: described temperature regulation layer (4) is temperature adjustment layer of fibers, and the thickness of described temperature regulation layer (4) is 0.8-1.0mm.
5. anti-freeze type compound drainage pipe according to claim 1, is characterized in that: described thermal insulation layer (5) is rubber-plastic sponge layer, and the thickness of described thermal insulation layer (5) is 0.8-1.2mm.
6. anti-freeze type compound drainage pipe according to claim 1, is characterized in that: the thickness of described PVDF layer (6) is 1.2-1.4mm.
7. anti-freeze type compound drainage pipe according to claim 1, is characterized in that: described frost retarding layer (7) is linear epoxy antifreezing dope layer, and the thickness of described frost retarding layer (7) is 0.6-0.8mm.
8. anti-freeze type compound drainage pipe according to claim 1, it is characterized in that: the inner wall smooth of described body, the outer wall of described body is provided with helical corrugation.
9. anti-freeze type compound drainage pipe according to claim 1, is characterized in that: the preparation method of described PE layer (3) is as follows:
1) take described each component according to proportioning, put into dehumidifying hot air dryer after mixing and carry out removal moisture drying process at 85-95 DEG C, till the water content of raw material is lower than 300mg/Kg;
2) mixed by the raw material after removal moisture drying process and pour Progressive symmetric erythrokeratodermia melt pelletization in twin screw extruder into, procession parameters is: head pressure is 8-10MPa, and machine barrel is divided into four sections, and temperature is followed successively by 165 DEG C, 175 DEG C, 185 DEG C, 195 DEG C; Die head divides into 4 sections, and temperature is followed successively by 215 DEG C, 220 DEG C, 225 DEG C, 230 DEG C, and forcing machine rotating speed is 20rad/min, and pulling speed is 100cm/min;
3) then under vacuum tightness is 0.2-0.3Mpa, adopt the mode of spraying cooling to carry out high-temperature quenching at 20 DEG C by cooling water tank, tubing can be cooled completely; Then shaping PE layer (3) can be obtained through stamped mark, traction, cutting.
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| CN201610030600.1A CN105504456B (en) | 2016-01-18 | 2016-01-18 | A kind of cold-proof resistance to jelly multilayer blow-off pipe |
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| CN201610030600.1A CN105504456B (en) | 2016-01-18 | 2016-01-18 | A kind of cold-proof resistance to jelly multilayer blow-off pipe |
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| CN105504456B CN105504456B (en) | 2018-07-13 |
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| CN106432947A (en) * | 2016-08-18 | 2017-02-22 | 徐英豪 | Application of silica micro-powder and titanium dioxide composition in plastic tubes |
| CN108331978A (en) * | 2018-02-08 | 2018-07-27 | 刘肖俊 | A kind of municipal drainage blow-off line that there is excellent ring stiffness and change flexibility |
| CN111194681A (en) * | 2020-02-27 | 2020-05-26 | 宁夏大学 | Anti-frost-heaving high-elasticity underground irrigator |
| CN112409673A (en) * | 2020-11-21 | 2021-02-26 | 武汉升瑞通管业有限公司 | High-corrosion-resistance PE (polyethylene) blow-off pipe and production method thereof |
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Cited By (6)
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|---|---|---|---|---|
| CN106432947A (en) * | 2016-08-18 | 2017-02-22 | 徐英豪 | Application of silica micro-powder and titanium dioxide composition in plastic tubes |
| CN108331978A (en) * | 2018-02-08 | 2018-07-27 | 刘肖俊 | A kind of municipal drainage blow-off line that there is excellent ring stiffness and change flexibility |
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| CN111194681B (en) * | 2020-02-27 | 2021-09-14 | 宁夏多源鑫科技有限公司 | Anti-frost-heaving high-elasticity underground irrigator |
| CN112409673A (en) * | 2020-11-21 | 2021-02-26 | 武汉升瑞通管业有限公司 | High-corrosion-resistance PE (polyethylene) blow-off pipe and production method thereof |
| CN112409673B (en) * | 2020-11-21 | 2023-05-02 | 武汉升瑞通管业有限公司 | PE blow-down pipe with high corrosion resistance and production method thereof |
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