CN107189299A - A kind of radiation proof Sandwich pipeline and preparation method thereof - Google Patents

A kind of radiation proof Sandwich pipeline and preparation method thereof Download PDF

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CN107189299A
CN107189299A CN201710544941.5A CN201710544941A CN107189299A CN 107189299 A CN107189299 A CN 107189299A CN 201710544941 A CN201710544941 A CN 201710544941A CN 107189299 A CN107189299 A CN 107189299A
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pipeline
interlayer
powder
slurry
radiation proof
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CN107189299B (en
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程俊华
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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
    • C08K9/00—Use of pretreated ingredients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F230/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
    • C08F230/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal
    • C08F230/08—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/01—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to unsaturated polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/28—Condensation with aldehydes or ketones
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • 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
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2234—Oxides; Hydroxides of metals of lead
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • 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

Abstract

The present invention discloses a kind of radiation proof Sandwich pipeline, belong to radiation protection and pipe transportation technology field, including two diameters different the first diameter pipes and Second bobbin diameter pipeline, Second bobbin diameter pipeline is sleeved on the first diameter pipes periphery and forms Sandwich pipeline, centre bore is formed in the first described diameter pipes, interlayer is formed between the first diameter pipes and Second bobbin diameter pipeline, slurry is filled in interlayer and solidify to form Polymer interlayers；Wherein, slurry includes performed polymer, shielding radioactivity functional powders and inorganic modified powder, and the quality sum and performed polymer quality ratio for shielding radioactivity functional powders and inorganic modified powder are 0.5~4.0：1.0.The present invention adds shielding radioactivity functional powders and inorganic modified powder during slurry is prepared, and preparation method, technique is simple, it is easy to promotion and application, possesses good practicality.

Description

A kind of radiation proof Sandwich pipeline and preparation method thereof
Technical field
The invention belongs to radiation protection and pipe transportation technology field, and in particular to a kind of radiation proof Sandwich pipeline and its system Preparation Method.
Background technology
Nuclear industry is related to a variety of radioactive levels and/or corrosive liquids, tail gas and dust, in separation, burns, admittedly Technique transportation problem between the link such as change, dust-proof.For example not only radioactivity has great energy and penetrates energy nuclear waste Power, and be corrosive, the requirement such as corrosion-resistant, radiation proof, shock resistance and long-life is proposed to conveyance conduit, is especially radiated Requirement of shelter is high.Except titanium steel, most metals pipeline is not corrosion-resistant, service life typically only 5 years, carbon steel of stainless steel tube 2 years, it is or even shorter；Plastic conduit, GRP pipe corrosion resistance it is better than stainless steel tube and carbon steel, but be due to resistance to Ageing properties are poor, and service life is not also long, the consequence of generation be these in-service metallic conduits, plastic conduit, GRP pipe by In by nuclear pollution, once go labour to be nuclear waste all by rule class；Meanwhile, either metallic conduit (except lead pipe road) or plastics Pipeline, GRP pipe be not strong to radioactive screening ability, it is necessary to adds in their outside and does radiation proof isolation engineering, example Such as wrap up layer of metal stereotype.Pipeline has laying, and distance with underground on the ground, is that this radiation proof isolation quantities is huge Greatly, on the other hand, these shielding materials once go labour to be also nuclear waste all by rule class；But the safe disposal of nuclear waste so far is still It is so worldwide technological puzzle, current most basic, most important management principle is that nuke rubbish (radwaste) is minimized.
The corrosion-resistant good, good weatherability of inorganic material pipeline, moreover, the elements such as lead, barium are added during preparing pipeline, It can make material that there is certain radiation protection ability, still, inorganic material is fragile material, addition lead, the glass of barium are even more typical case Fragile material, impact resistance is poor, and security is poor, limit inorganic material pipe applications in nuclear power plant etc. be related to radioactivity and/ Or the conveying of corrosive liquids, gas and dust；It can also be added during preparing plastic conduit, GRP pipe in theory There are lead, the barium composition of screening ability to radioactivity, but substantial amounts of experiment shows, the shielding properties of material and its media-resistant pressure Often there is contradiction between power, mechanical strength, processing characteristics etc., limit its application and development, and its decay resistance and nothing Machine material greatly differs from each other.
To reduce the tieing of connection utilities pipeline, conveyance conduit has a specification requirement for reaching certain length, and existing prepares The technique and equipment of doubling plate glass have strict limitation to the length of prepared product, are not suitable for production interlayer delivery pipe Road.
In addition, because requirement to the doubling plate glass transparency, the selection of material modified type is restricted, in the middle of it Layer is pure organic matter, lacks energy dissipation mechanism, the advantage of Material cladding is not not fully exerted, and limits doubling material Functional development.The curing process and equipment that existing grouting method prepares doubling plate glass can not exclude curing exotherm in time or to solid Change heating, and performed polymer solidification needs strict " Temperature-time " system, to improve the solidification quality in intermediate layer.
Prior art removes intermediate layer bubble using swing method or vacuum kettle method, have that cumbersome, efficiency is low, quality not Stable shortcoming.Swing method is using bubble buoyancy suffered in performed polymer, and swing promotes bubble to rise and arranges bubble；Vacuum kettle method It is not only and intermediate layer is vacuumized, and require that space also reaches certain vacuum in vacuum kettle, thus needs longer take out Vacuum time, power consumption is high.
Radioactive functional powders (barium sulfate, barium carbonate, lead powder, lead oxide, boron are shielded when being added in performed polymer Acid, borax, boron carbide, strontium carbonate, iron powder, boron steel powder) and inorganic modified powder, high viscosity paste is formd, bubble is viscous in height Spend more difficult in slurry exclude.
The content of the invention
Goal of the invention：It is an object of the invention to provide a kind of interlayer pipe with radiation protection function and conveying function , there are radioactivity and/or corrosive liquids, gas and powder in road for conveying；It is a kind of anti-another object of the present invention is to provide The preparation method of Sandwich pipeline is radiated, shielding radioactivity functional powders and inorganic modified powder are added during slurry is prepared In end, the interlayer that this slurry is injected to different-diameter pipeline, and make slurry in-situ solidifying formation Polymer interlayers, so that will The pipeline of two or more different-diameters is bonded together.
Technical scheme：For achieving the above object, the present invention is adopted the following technical scheme that：
A kind of radiation proof Sandwich pipeline, including two diameters different the first diameter pipes and Second bobbin diameter pipeline, second Diameter pipes are sleeved on the first diameter pipes periphery and form Sandwich pipeline, and centre bore is formed in the first described diameter pipes, Interlayer is formed between the first diameter pipes and Second bobbin diameter pipeline, slurry is filled in interlayer and is solidify to form in the middle of polymer Layer；Wherein, slurry includes performed polymer, shielding radioactivity functional powders and inorganic modified powder, shielding radioactivity functional powders and The quality sum of inorganic modified powder is 0.5~4.0 with performed polymer quality ratio：1.0；Wherein, shielding radioactivity functional powders with The ratio between inorganic modified powder quality is 5.0：0~4.0.
Described shielding radioactivity functional powders be selected from barium sulfate, barium carbonate, strontium carbonate, lead oxide, lead powder, lead silicate, One or more combination/compound in boric acid, borax, boron carbide, boron steel powder, iron powder.These shielding radioactivity functional powders Can be chemical synthesis can also mineral grinding processing obtain.
Described performed polymer is by organic monomer or macromolecule resin homopolymerization, copolymerization or mixes, described organic monomer Or macromolecule resin is selected from synthesis PVA, PVB, PMMA, PA, ABS, EA, polyester, unsaturated-resin, polyamide, polyurethane, epoxy Any or several combination in resin, the polyether-modified resin of dimethoxy modified silane.
By selecting shielding radioactivity functional powders, inorganic modified powder, the type of performed polymer, combination and ratio, realize The controllable adjustment of pipeline screening ability and mechanical property.
Described inorganic modified powder is that granularity is less than 100 mesh powder shape inorganic matters, and powdered inorganic thing is chemical conjunction Into or the processing of mineral grinding obtain, inorganic modified powder is selected from calcium oxide, calcium carbonate, silica, titanium oxide, carbon black and silicon Any one in hydrochlorate powder or several combinations.
Described the first diameter pipes and Second bobbin diameter pipeline are inorganic pipeline, the engineering plastic that diameter differs by more than 1.0mm Any or several combination in pipe material and metallic conduit.
Described inorganic pipeline, selected from quartz glass pipeline, borosilicate glass tube road, silicate glass pipeline crystallite glass It is any or several in glass pipeline, physical toughened or chemical tempering treated silicate glass pipeline and cast stone pipeline Combination.
Described engineering plastics pipe material is selected from PPR (polypropylene), PVC (polyvinyl chloride), PB (polybutene), PE-RT (heat-proof polythene) and PE (polyethylene)/HDPE (enhancing high density polyethylene (HDPE)).
A kind of preparation method of radiation proof Sandwich pipeline, comprises the following steps：
1) organic monomer or macromolecule resin and auxiliary agent are added in a kettle., are triggered and are polymerize and control monomer conversion, Obtain adding shielding radioactivity functional powders and inorganic modified powder under performed polymer, high-speed stirred, wherein, shield radioactivity work( The quality sum of energy powder and inorganic modified powder is 0.5~4.0 with performed polymer quality ratio：1.0, wherein, shield radioactivity work( The ratio between energy powder and inorganic modified powder quality are 5.0：0~4.0.Then carry out or obtain slurry without vacuum outgas；Its In, auxiliary agent is diluent, initiator, coupling agent and curing agent；Wherein, auxiliary agent is diluent, initiator, coupling agent and solidification Agent；According to the type of organic monomer or macromolecule resin, with reference to prior art, selection diluent, initiator, coupling agent and temperature-sensitive Or the type and addition of photo-curing agent；
2) the first diameter pipes of cleaning, Second bobbin diameter pipeline and drying；
3) the first diameter pipes, Second bobbin diameter pipeline are nested with each other the nestable pipeline of one group of composition；
4) by the U-loop groove of upper elastic rubber sealing ring high one or more 20-40mm cover on respectively every group it is nestable The upper end of pipeline and press-in, by the sebific duct of the first flexible pipe of upper elastic rubber sealing ring, the second flexible pipe respectively with conveying performed polymer It is connected with the blast pipe vacuumized, as slip casting and vacuumizes the passage of process；
5) the U-loop groove of lower elastic rubber sealing ring high one or more 20-40mm is covered on one group and is nested pipeline Lower end is simultaneously pressed into, and plays the back cover effect in closed conduct lower end interlayer gap；
6) slurry is slowly injected into interlayer by the first flexible pipe, until filling interlayer；
7) polymerization is excluded to being filled with the interlayer vacuum-pumping about 1-20 minutes of slurry, negative pressure by vavuum pump through the second flexible pipe The bubble of performed polymer in thing intermediate layer, it is then slow to reduce negative pressure until normal pressure；First diameter pipes and Second bobbin diameter pipeline it Between form interlayer；
8) slurry solidification obtains Polymer interlayers, until firmly bonding integral, dismantling step 4 with pipeline) covered On elastic rubber sealing ring and lower elastic rubber sealing ring, obtain radiation proof Sandwich pipeline.
In described step 5) after, by the pipeline proper alignment after multigroup back cover on grid pallet, one is moved into together In the individual container that can accommodate grid pallet and neat in line pipeline, step 6 is then carried out) -8).
Described step 5) back cover process replace with step 3) in pipeline lower end interlayer in fill in width and be more than Or be equal to the PVB films of interlayer spacing, and with hot blast by PVB adhesive tape bake it is soft be fixed in Polymer interlayers, play closing The effect in lower end of duct interlayer gap；Or the high back cover glue of 10-20mm is filled in the bottom interlayer of pipeline；Or by means of fire Flame, the heating of heating element and solder auxiliary under realize back cover.
Described step 8) in, solidification temperature is 0~120 DEG C.
Inventive principle：A kind of compound Sandwich pipeline of inorganic/organic material of present invention design, is that composite construction adds one Individual energy consumption mechanisms.Shielding radioactivity functional powders are added in Polymer interlayers and inorganic modified powder plays absorption, divided Dissipate the effect that impact from outer bound pair pipeline etc. absorbs energy, shielding radioactivity functional powders of these Dispersed precipitates and inorganic Modified powder can be by preventing or preventing crackle to propagate in the polymer in interbed, so that the fracture for improving composite is strong Degree, or physically stop and prevent crackle or transfer and divide them, so as to hinder it to pass through Polymer interlayers；They are also A certain proportion of load can be carried to improve the rigidity and intensity of composite, especially impact resistance.
In Polymer interlayers add shielding radioactivity functional powders in pipeline convey material radioactivity, such as X-ray, High energy particle/the radial energy such as gamma-rays, neutron has strong absorbability, prevents high energy particle from penetrating outer layer pipe, is that pipeline is carried For radioactive shield performance；Because the energy of ray is equal or slightly larger than the K layer ABSORPTION EDGEs of a certain absorbing material, then this absorption Material is most strong to the absorbability of the ray photons of this kind of energy, and as ray energy increases, its absorbability declines rapidly.This Mean that, to a certain electron outside nucleus or a kind of element, the energy range for effectively absorbing ray is very narrow, and by several differences The shielding radioactivity functional powders of material composition, respective L layers, the K layers of attenuation by absorption coefficient to ray photons is different, by proper When combination/be combined they, can make attenuation by absorption coefficient be superimposed, the defect in single-element " weak absorbing area " is made up to a certain extent. Further, when the granularity of shielding radioactivity functional powders is less than 100 mesh, fine grained has to " Compton scattering " and " photoelectric effect " Enhancement effect.From barium sulfate, barium carbonate, lead powder, lead oxide, boric acid, borax, boron carbide, strontium carbonate, iron powder, boron steel powder etc. Selection one or more are combined/are combined, and their ratio can (such as lead be worked as according to the shielding properties to Polymer interlayers Amount) requirement or radioactive substance in conveying material and radioactive level, pass through X-COM program preresearch estimates.
The grid pallet with gas dispensing line and multiple rows of in/out stomata, is used as heat in a kind of interlayer of present invention design The hot/cold gas of exchange media enters the interlayer of grid pallet, flows through its plurality of rows of in/out stomata, is then passed through inorganic material pipe The gap of the centre bore in road and multigroup inorganic material pipeline, removes the heat release of slurry polymerization reaction or polymerisation is added in time Heat, makes polymeric reaction condition control under more accurate, more stable environment, so as to improve the adhesion strength of Polymer interlayers.
A kind of upper elastic rubber sealing ring with U-loop groove of present invention design, can be excluded in interlayer with less negative pressure The bubble of slurry, or even the bubble in high viscosity paste.
Beneficial effect：Compared with prior art, a kind of radiation proof Sandwich pipeline of the invention, possesses following advantage：
1) Sandwich pipeline has radiation proof function, instead of on the outside of conventional pipelines plus do radiation proof isolation engineering；Addition Shielding radioactivity functional powders and inorganic modified powder, which are played, absorbs ray, absorption, scattered, carrying from extraneous shock loading Deng the effect of energy；They can be by preventing or preventing crackle to propagate in the polymer in interbed, so as to improve the power of pipeline Intensity, especially impact resistance are learned, even more than the ultimate strength of pipeline, its fragment is not fallen off yet, and adds pipe safety；
2) negative pressure degasification eliminates the gas remained in preparation process in slurry, negative pressure slip casting first before being injected to slurry It can prevent existing normal pressure or malleation from moving may newly entrain into bubble, especially slip casting in batches, the method for multiple negative pressure row's bubble in material, The technical barrier that bubble hardly possible is more excluded in high viscosity paste is solved, preparation quality is improved；Use upper elastic rubber sealing ring It is easy to operate instead of vacuum kettle, reduce investment；
3) because the composition of Polymer interlayers can change in a wider scope, by selecting and adjusting different screens The kind and ratio of radioactivity functional powders and inorganic modified powder are covered, the performance of radiation proof Sandwich pipeline is controlled, adapts to different Application, the shielding radioactivity functional powders of addition combination/compound can overcome the disadvantages that the defect in single-element " weak absorbing area "；
4) pressure and flow velocity inside grid pallet interlayer as heat exchange medium hot/cold gas are adjusted, nestable pipe is measured Temperature fluctuation in the centre bore in road and multigroup nestable pipeline gap can reach ± 1.0 DEG C, enable slurry more accurate, more steady Polymerizing curable under fixed environment, improves solidification quality；
A kind of radiation proof Sandwich pipeline preparation method of the present invention, technique is simple, it is easy to promotion and application, possesses well Practicality.
Brief description of the drawings
Fig. 1 is elastic rubber sealing ring annexation schematic diagram on U-loop groove；
Fig. 2 is the U-loop slot structure schematic diagram of upper elastic rubber sealing ring；
Fig. 3 is grid support holder structure schematic diagram；
Fig. 4 is one group of nestable pipeline configuration schematic diagram；
Fig. 5 is the titanium dioxide laminated glass of addition different proportion in the polyether-modified resin prepolymer of dimethoxy modified silane The breaking load curve map of pipeline；
Fig. 6 is rushing for the titanium dioxide laminated glass pipeline of the polyether-modified resin addition different proportion of dimethoxy modified silane Hit energy and impact strength curve figure；
Fig. 7 is that the modulus of elasticity of addition same ratio coupling agent treatment peroxidating interlayer silicon glass tube in different performed polymers is bent Line chart；
Fig. 8 is the impact energy of the silica laminated glass pipe that addition same ratio coupling agent treatment is crossed in different performed polymers With impact strength curve figure.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
As Figure 1-4, reference is as follows：Upper elastic rubber sealing ring 1, the first flexible pipe 2, the second flexible pipe 3, sebific duct 4, Blast pipe 5, centre bore 6, the first diameter pipes 7, Second bobbin diameter pipeline 8, lower elastic rubber sealing ring 9, Polymer interlayers 10, U-loop groove 11, grid pallet 12, stomata 13, interlayer 14, air flow inlet 15.The height h of upper elastic rubber sealing ring 1 is 20- 40mm.First diameter pipes 7 are small diameter pipelines, and Second bobbin diameter pipeline 8 is large-diameter pipeline, the first diameter pipes 7 and second Diameter pipes 8 are the pipelines that diameter differs by more than 1.0mm.
First diameter pipes and Second bobbin diameter pipeline are inorganic pipeline, the engineering plastics pipe that diameter differs by more than 1.0mm With it is any or several in metallic conduit, according to use occasion or the requirement of performance, be combined, and each pipeline Wall thickness identical or can be differed.
Inorganic pipeline, selected from quartz glass pipeline, borosilicate glass tube road, silicate glass pipeline microcrystal glass tube Any or several group in road, physical toughened or chemical tempering treated silicate glass pipeline and cast stone pipeline Close.
Engineering plastics pipe material has PPR (polypropylene), PVC (polyvinyl chloride), PB (polybutene), PE-RT (resistance to hot polymerization second Alkene), PE (polyethylene) HDPE (enhancing high density polyethylene (HDPE)) etc..
Slurry is filled in interlayer and solidify to form Polymer interlayers 10；Wherein, slurry includes performed polymer, shielding radioactivity The quality sum and performed polymer quality of functional powders and inorganic modified powder, shielding radioactivity functional powders and inorganic modified powder Than for 0.5~4.0：1.0；The coupling agent solution for being used with or without general types is carried out or the table that is of little use to inorganic modified powder Face processing method is surface-treated, to improve the chemical polarity on inorganic modified powder surface.
According to the screening ability of Polymer interlayers 10, adhesion strength, shock resistance, modulus of elasticity, dimensionally stable Property and slurry apparent viscosity and mobility requirement, the ratio between shielding radioactivity functional powders and inorganic modified powder quality are 5.0：0~4.0.
Performed polymer is by organic monomer or macromolecule resin homopolymerization, copolymerization or mixes, organic monomer or macromolecule resin Selected from synthesis PVA, PVB, PMMA, PA, ABS, EA, polyester, unsaturated-resin, polyamide, polyurethane, epoxy resin, dimethoxy Any or several combination in the polyether-modified resin of base modified silane.
Inorganic modified powder be can improve the adhesion strength in above macromolecule polymer material intermediate layer, shock resistance, Modulus of elasticity, dimensional stability and improve slurry apparent viscosity, improve its mobility, granularity be less than 100 mesh powder shapes without Machine thing, these inorganic material powders can be chemical synthesis can also mineral grinding processing obtain, such as calcium oxide, carbonic acid Calcium, silica, titanium oxide, carbon black, silicate powder (such as cement).
A kind of preparation method of radiation proof Sandwich pipeline, comprises the following steps：
1) polymer monomer is added in a kettle. and (such as lead is worked as according to the adhesion strength to intermediate layer, shielding properties Amount), shock resistance, modulus of elasticity, material property and the manufacturability such as the apparent viscosity and mobility of dimensional stability and slurry The requirement of energy, selects the auxiliary agents such as diluent, initiator, coupling agent；Trigger and polymerize and control monomer conversion；Add under high-speed stirred Enter the shielding radioactivity functional powders crossed with or without coupling agent treatment and/or be added without with or without at coupling agent The inorganic modified powder managed, performed polymer：The mass ratio of (radioactivity functional powders+inorganic modified powder) sum is 1.0：0.5 ~4.0, wherein, the ratio between shielding radioactivity functional powders and inorganic modified powder quality are 5.0：0~4.0.Then vacuum is carried out Degassing obtains slurry；
2) cleaning pipeline and drying are rinsed with conventional detergent solution, water；
3) the first diameter pipes 7, Second bobbin diameter pipeline 8 are nested with each other the nestable pipeline of one group of composition；
4) the U-loop groove 1 of upper elastic rubber sealing ring 11 high one or more 20-40mm is covered on into every group respectively to be nested Pipeline upper end and press-in, by the first flexible pipe 2 of upper elastic rubber sealing ring 11, the second flexible pipe 3 respectively with slurry body Sebific duct 4 is connected with the blast pipe 5 vacuumized, the passage as next procedure (slip casting and vacuumize)；
5) the U-loop groove 1 of lower elastic rubber sealing ring 9 high one or more 20-40mm is covered on into one group of nestable pipeline Lower end and press-in, play closed conduct lower end interlayer gap back cover effect；
Step 5) can also select in step 3) in pipeline lower end interlayer in fill in width and be slightly larger than or be equal to folder The PVB films of interlamellar spacing, and with hot blast by these PVB adhesive tape bake it is soft be fixed between interlayer, play between the interlayer of closed conduct lower end The effect (back cover) of gap；Or the high hot melt butyl rubbers of 10-20mm or polysulfide sealing are filled in the bottom interlayer of above pipeline The existing back cover glue such as glue or polyurethane sealant or acetone type room temperature vulcanized silicone rubber (silicone adhesive)；Or by means of flame, hair The heating of hot device and solder auxiliary under realize back cover；
Step 6) slip casting：Slurry is slowly injected into the interlayer of above pipeline by the first flexible pipe 2, until filling interlayer；
Step 7) row's bubble：Above pipe sandwich is vacuumized about 1-20 minutes by vavuum pump through the second flexible pipe 3, negative pressure row It is then slow to reduce negative pressure until normal pressure except the bubble of slurry in interlayer；
Step 8) solidification：Solidified according to modes such as the type selecting of slurry heat, UV, ray, electron beam irradiations or normal temperature is normal The modes such as pressure solidify slurry, until firmly bond integral, dismantling step 4 with inorganic material pipeline) the elastic rubber covered Glue sealing ring and lower elastic rubber sealing ring, obtain Sandwich pipeline.
Allow the centre bore of hot/cold gases flow via line and the gap of multigroup nestable pipeline in the curing process, be used as heat to hand over Change medium and remove curing reaction heat release or heating in time, slurry is gathered under more accurate, more stable " Temperature-time " environment Solidification is closed, the adhesion strength of Polymer interlayers 10 is improved.
Work efficiency and solidification quality, step 5 are prepared in order to improve) after, the above pipeline after multigroup back cover can neatly be arranged It is listed on grid pallet, moves into together in a container that can accommodate grid pallet and neat in line pipeline, then carry out step 6)-step 8).
It can arrange that heat exchanger, uviol lamp, ray emitter, electron beam irradiation device make on above chamber wall in curing mode Performed polymer solidifies.Because heat exchanger, uviol lamp, ray emitter, electron beam irradiation device are arranged in upper container inside, make production It is safer.
Operation principle：By with the flexible pipe 2 of U-loop groove 1 and first, the second flexible pipe 3, with closing elastic rubber sealing ring 11 Slurry is injected into interlayer and negative pressure excludes the bubble of slurry in interlayer；Distributed by the way that multigroup pipeline is arranged in interlayer 14 On the grid pallet 12 of air pipe, allow as heat exchange medium by air flow inlet 15 enter interlayer 14 hot/cold gas, through lattice Multiple in/out stomatas 13 on the surface of grid pallet 12 pass through regulation through the centre bore 6 of pipeline and the gap of multigroup nestable pipeline The flow and flow velocity of hot/cold air-flow in the interlayer 14 of grid pallet 12, remove the heat release of polymerization curing reaction or to poly- in time Close curing reaction heating so that slurry can under more accurate, more stable " Temperature-time " environment polymerizing curable, improve poly- The adhesion strength in compound intermediate layer 10.
Example 1
A kind of preparation method of radiation proof Sandwich pipeline, comprises the following steps：
Step 1) a certain amount of polyvinyl alcohol (PVA), hutanal, diluent, initiator, coupling are added in a kettle. The auxiliary agents such as agent, curing agent, are condensed under acid catalysis and control monomer conversion；Added under high-speed stirred with or without Nanometer lead powder that coupling agent treatment is crossed, boric acid powder, performed polymer：The mass ratio of (nanometer lead powder+boric acid) is 1.0：4.0, wherein, The mass ratio of nanometer lead powder and boric acid is 5.0：0.5；Then carry out vacuum outgas and obtain slurry；
Step 2) the first straight of the borosilicate glass material of cleaning and dry different-diameter is rinsed with detergent solution, water The silicate glass Second bobbin diameter pipeline 8 of footpath pipeline 7, material；
Step 3) the first diameter pipes 7, Second bobbin diameter pipeline 8 are nested with each other the nestable pipeline of one group of composition；
Step 4) the U-loop groove 1 of upper elastic rubber sealing ring 11 high one or more 20-40mm is covered on every group respectively The upper end of nestable above pipeline and press-in, by the first flexible pipe 2 of upper elastic rubber sealing ring 11, the second flexible pipe 3 respectively with it is defeated The sebific duct 4 for sending slurry is connected with the blast pipe 5 vacuumized, the passage as next procedure (slip casting and vacuumize)；
Step 5) the U-loop groove 1 of lower elastic rubber sealing ring 9 high one or more 20-40mm is covered on one group be nested The lower end of pipeline and press-in, play the back cover effect of closed conduct lower end interlayer gap；By multigroup above pipeline proper alignment in grid On lattice pallet 12, and move into together in a container that can accommodate grid pallet 12 and neat in line pipeline；
Step 6) slip casting：Slurry is slowly injected into the interlayer of above pipeline by the first flexible pipe 2, it is secondary slip casting in three batches, every Negative pressure row once steeps after once grouting, until filling interlayer；
Step 7) row's bubble：Above pipe sandwich is vacuumized about 1-20 minutes by vavuum pump through the second flexible pipe 3, negative pressure row It is then slow to reduce negative pressure until normal pressure except the bubble of slurry in interlayer；
Step 8) solidification：More than the 40W ultraviolet lamp tubes irradiation arranged on the wall by branched 10-20mm spacing manage Road 40-50 minutes.Therebetween in the interlayer 14 by adjusting grid pallet 12 hot/cold air-flow flow and flow velocity, make hot/cold air-flow The centre bore 6 through above pipeline and the gap of pipeline at the in/out stomata 13 of grid pallet 12, as heat exchange medium and When remove curing reaction heat release or heating, enable slurry by " Temperature-time " condition polymerizing curable of setting, until with nestable pipe Road bonds integral, dismantling step 4 securely) and step 5) elastic rubber sealing ring 11 that covers and the sealing of lower elastic caoutchouc Circle 9, obtains radiation proof interlayer borosilicate glass tube road or silicate glass pipeline.This pipeline high-level radioactivity in being adapted to The conveying of waste.
Example 2
A kind of preparation method of radiation proof Sandwich pipeline, comprises the following steps：
Step 1) methyl acrylate, dibutyl ester, benzoic acid, silane, peroxidating are first added by weight ratio in a kettle. The auxiliary agents such as benzoyl, azodiisobutyronitrile, dibutyl phthalate and methacrylic acid, trigger and polymerize and control monomer to convert Rate；Barium sulfate+the titanium oxide crossed with or without coupling agent treatment is added under high-speed stirred, performed polymer is selected：(barium sulfate+ Titanium oxide) mass ratio be 1.0：0.5, wherein, the mass ratio of nanometer lead powder and boric acid is 5.0：0.5；Then vacuum is carried out to take off It is so incensed that slurry；
Step 2) the lithium silicon aluminum micro-crystal glass pipeline for cleaning and drying different-diameter is rinsed with detergent solution, water, and/or Borosilicate glass or silicate glass pipeline；
Step 3) the first diameter pipes 7, Second bobbin diameter pipeline 8 are nested with each other the nestable pipeline of one group of composition；
Step 4) the U-loop groove 1 of upper elastic rubber sealing ring high 20-40mm is covered on into the upper end of above pipeline simultaneously respectively Press-in, the flexible pipe 2 and flexible pipe 3 of upper rubber seal are connected with the sebific duct 4 of slurry body and the blast pipe 5 vacuumized respectively Connect, the passage as next procedure (slip casting and vacuumize)；
Step 5) the PVB films that width is slightly larger than or be equal to interlayer spacing are filled in the interlayer of above lower end of duct, And with hot blast by these PVB adhesive tape bake it is soft be fixed between interlayer, play a part of closed conduct lower end interlayer gap (back cover)；Or Person filled in the bottom interlayer of above pipeline high 10-20mm hot melt butyl rubber or polysulfide sealant or polyurethane sealant or The back cover of acetone type room temperature vulcanized silicone rubber (silicone adhesive)；
By multigroup above pipeline proper alignment, immigration one can accommodate grid to step (5-1) on grid pallet 12, and together In the container of lattice pallet 12 and neat in line pipeline；
Step 6) slip casting：Slurry is slowly injected into the interlayer of above pipeline by the first flexible pipe 2, until filling interlayer；
Step 7) row's bubble：Above pipe sandwich is vacuumized about 1-20 minutes by vavuum pump through flexible pipe 3, negative pressure excludes folder The bubble of slurry in layer, it is then slow to reduce negative pressure until normal pressure；
Step 8) solidification：Hot/cold air-flow is allowed to enter in the interlayer of grid pallet and worn from in/out stomata in the curing process The gap of the centre bore 6 of piping and multigroup nestable pipeline, curing reaction heat release is removed as heat exchange medium or is added in time Heat, notes the soaking time in 60 DEG C, 85 DEG C, 100 DEG C of temperature sensitive point, enables slurry by " Temperature-time " condition of setting Polymerizing curable, until firmly bond integral, dismantling step 4 with nestable pipeline) elastic rubber sealing ring 11 that covers, obtain To lithium silicon aluminum micro-crystal glass Sandwich pipeline or the compound folder of lithium silicon aluminum micro-crystal glass and borosilicate glass or silicate glass Layer pipeline.
Example 3
A kind of preparation method of radiation proof Sandwich pipeline, comprises the following steps：
Step 1) in a kettle. add urethane modified polyester resin, isophthalic unsaturated polyester resin, viscosity reduction diluent, The auxiliary agents such as defoamer, curing agent, VTES (A-151) coupling agent, trigger and polymerize and control monomer conversion； The lead oxide crossed with or without coupling agent treatment, selection performed polymer are added under high-speed stirred：The mass ratio of lead oxide is 1.0：4.0, then carry out vacuum outgas and obtain slurry；
Step 2) treated with the physical toughened or chemical tempering of detergent solution, water flushing cleaning and dry different-diameter Silicate glass pipeline；
Step 3) the first diameter pipes 7, Second bobbin diameter pipeline 8 are nested with each other the nestable pipeline of one group of composition；
Step 4) the U-loop groove 1 of upper elastic rubber sealing ring 11 high one or more 20-40mm is covered on every group respectively The upper end of nestable pipeline and press-in, the first flexible pipe 2 of upper elastic rubber sealing ring 11, the second flexible pipe 3 are starched with conveying respectively The sebific duct 4 of body is connected with the blast pipe 5 vacuumized, the passage as next procedure (slip casting and vacuumize)；
Step 5) the U-loop groove 1 of lower elastic rubber sealing ring high one or more 20-40mm is covered on into one group of nestable pipe The lower end in road and press-in, play the back cover effect in closed conduct lower end interlayer gap；
Step 6) slip casting：Slurry is slowly injected into the interlayer of above pipeline by the first flexible pipe 2, until filling interlayer；
Step 7) row's bubble：Above pipe sandwich is vacuumized about 1-20 minutes by vavuum pump through the second flexible pipe 3, negative pressure row It is then slow to reduce negative pressure until normal pressure except the bubble of slurry in interlayer；
Step 8) solidification：Solidification is stood under normal temperature and pressure and obtains Polymer interlayers 10, then dismantling step 4) and step 5) the upper elastic rubber sealing ring 11 and lower elastic rubber sealing ring 9 covered, obtains that interlayer is physical toughened or silicon of chemical tempering Silicate glass pipeline.
Embodiment 4
Change shielding radioactivity functional powders, inorganic modified powder, performed polymer proportioning, by the first diameter tube in above example Road 7 and Second bobbin diameter pipeline 8 are all that inorganic material pipeline changes into inorganic material pipeline and plastic conduit or GRP pipe, its It operates essentially identical with example 1, example 2 or example 3.
Embodiment 1-4 test result see the table below 1.
The ratio lead equivalent and linear attenuation coefficient of radiation proof Sandwich pipeline during the proportioning change of table 1
As can be known from the results of Table 1, the mass ratio of shielding radioactivity functional powders and inorganic modified powder is one wider In the range of change, the linear attenuation coefficient of the ratio lead equivalent of radiation proof Sandwich pipeline and the different radiation of correspondence also changes, The defect in single-element " weak absorbing area " is made up to a certain extent, and the addition therein containing boron powder is conducive to the suction to neutron Receive, expand radiation proof scope.Knowable to binding test example two, the change of the mass ratio of performed polymer and inorganic modified powder, The highest impact energy and highest impact strength for making radiation proof Sandwich pipeline are respectively 271 joules and 137.5kJ/m2, improve 135.5 times and 102.5 times.
Test case one
Performance test is carried out to the above radiation proof Sandwich pipeline of preparation.
With X gamma-rays air kerma (protection level) standard set-up, detected through 100KV collimating X-ray radiations beam, sample Product glass tube specification is external diameter 32mm, internal diameter 29mm and external diameter 22mm, internal diameter 19mm, and intermediate layer 3mm measures the radiation proof interlayer The highest of pipeline is 0.87mmPb than lead equivalent.
Test case two
With microcomputer universal testing machine (RG test control systems), the fracture resistance of sample, span=3 × pressure are measured Head diameter × specimen finish, loading velocity is 0.5mm/min；The shock resistance of sample is measured with ZBC2000 balance weight impact testing machines Performance, span is 40mm, and impact velocity is 5.2M/S.
Data processing method
Modulus of elasticity is calculated by formula E=σ/ε (MPa),
Wherein σ is stress/MPa；ε is strain.
Stress is calculated by formula σ=F/S (MPa),
Wherein F is breaking load/kN；S is sectional area (calculating sectional area with the overall diameter of outer layer pipe)/m2.
Formula ε=dL/L is pressed in strain, and wherein dL is displacement/m；L is outer diameter/m of outer layer pipe.Impact strength is by public affairs Formula a=W/S (kJ/m2), wherein W is impact energy/J；S is sectional area (calculating sectional area with the overall diameter of outer layer pipe)/m2。 Exemplified by radiation sandwiched glass pipeline：
As seen in figs. 5-6, glass tube specification used is external diameter 10mm, internal diameter 7mm and external diameter 6mm, internal diameter 4mm, polymerization Thing intermediate layer is that with the addition of the titanium dioxide of different proportion in the polyether-modified resin of dimethoxy modified silane.Before interlayer, glass tube Breaking load, impact energy and impact strength be respectively 0.157KN, 0.32 joule, 1.997kJ/m2；After interlayer, glass tube Destruction carry, the peak value of impact energy and impact strength is 0.613KN, 0.87 joule and 3.9kJ/m respectively2。
As shown in fig. 7, glass tube specification used is external diameter 32mm, internal diameter 29mm and external diameter 22mm, internal diameter 19mm, it is middle Layer is different polymer and with the addition of the silicon oxide powder that same ratio is crossed through coupling agent treatment；Before and after comparing interlayer, pipeline Modulus of elasticity improves 25%.
As shown in figure 8, the diameter of glass tube used is different, but intermediate layer thickness, material and wall thickness of glass tube all same；Such as Caliber 50mm individual layer quartz glass tube, experiment is measured, before interlayer, and impact energy is 2 joules, and impact strength is 1.34kJ/m2, After PVB interlayer process operations, its highest impact energy and highest impact strength are respectively 271 joules and 137.5kJ/ m2, improve 135.5 times and 102.5 times.

Claims (10)

1. a kind of radiation proof Sandwich pipeline, it is characterised in that：It is straight including different the first diameter pipes (7) of two diameters and second Footpath pipeline (8), Second bobbin diameter pipeline (8) is sleeved on the first diameter pipes (7) periphery and forms Sandwich pipeline, straight described first Centre bore (6) is formed in footpath pipeline (7), interlayer is formed between the first diameter pipes (7) and Second bobbin diameter pipeline (8), in folder In layer Polymer interlayers (10) are formed after the solidification of filling performed polymer；Wherein, slurry includes performed polymer, shielding radiation sexual function powder Last and inorganic modified powder, shielding radioactivity functional powders and the quality sum of inorganic modified powder are with performed polymer quality ratio 0.5~4.0：1.0；Wherein, the ratio between shielding radioactivity functional powders and inorganic modified powder quality are 5：0~4.0.
2. a kind of radiation proof Sandwich pipeline according to claim 1, it is characterised in that：Shielding radioactivity functional powders are selected from In barium sulfate, barium carbonate, strontium carbonate, lead oxide, lead powder, lead silicate, boric acid, borax, boron carbide, boron steel powder, iron powder it is a kind of or A variety of combination/compounds.
3. a kind of radiation proof Sandwich pipeline according to claim 1, it is characterised in that：Described performed polymer is by organic monomer Or macromolecule resin homopolymerization, copolymerization or mix, described organic monomer or macromolecule resin be selected from synthesis PVA, PVB, PMMA, PA, ABS, EA, polyester, unsaturated-resin, polyamide, polyurethane, epoxy resin, dimethoxy modified silane polyethers change Any or several combination in property resin.
4. a kind of radiation proof Sandwich pipeline according to claim 1, it is characterised in that：Described inorganic modified powder is grain Degree is less than 100 mesh powder shape inorganic matters, and inorganic modified powder is that chemical synthesis or the processing of mineral grinding are obtained, inorganic to change Property powder in calcium carbonate, calcium oxide, silica, titanium oxide, carbon black and silicate powder any one or it is several Combination.
5. a kind of radiation proof Sandwich pipeline according to claim 1, it is characterised in that：Described the first diameter pipes (7) It is that diameter differs by more than any in 1.0mm inorganic pipeline, engineering plastics pipe and metallic conduit with Second bobbin diameter pipeline (8) One or several kinds of combinations.
6. a kind of radiation proof Sandwich pipeline according to claim 3, it is characterised in that：Described inorganic pipeline, selected from stone English glass pipe, borosilicate glass tube road, silicate glass pipeline microcrystal glass tube road, the processing of physical toughened or chemical tempering Any or several combination in the silicate glass pipeline and cast stone pipeline crossed；Described engineering plastics pipe material Selected from PPR, PVC, PB, PE-RT and PE/HDPE.
7. a kind of preparation method of radiation proof Sandwich pipeline in claim 1-6 described in any one, it is characterised in that：Including Following steps：
1) organic monomer or macromolecule resin and auxiliary agent are added in a kettle., are triggered and are polymerize and control monomer conversion, obtain Shielding radioactivity functional powders and inorganic modified powder are added under performed polymer, high-speed stirred, wherein, shielding radiation sexual function powder The quality sum of last and inorganic modified powder is 0.5~4.0 with performed polymer quality ratio：1.0, shield radioactivity functional powders and nothing Machine modified powder mass ratio is 5.0：0~4.0, then carry out or obtain slurry without vacuum outgas；Wherein, auxiliary agent is dilute Release agent, initiator, coupling agent and curing agent；
2) cleaning pipeline and drying；
3) the first diameter pipes (7), Second bobbin diameter pipeline (8) are nested with each other the nestable pipeline of one group of composition；
4) the U-loop groove (11) of upper elastic rubber sealing ring (1) high one or more 20-40mm is covered on into every group respectively to be nested Pipeline upper end and press-in, the first flexible pipe (2) of upper elastic rubber sealing ring (1), the second flexible pipe (3) is pre- with conveying respectively The sebific duct (4) of aggressiveness is connected with the blast pipe (5) vacuumized, as slip casting and vacuumizes the passage of process；
5) the U-loop groove (1) of lower elastic rubber sealing ring (9) high one or more 20-40mm is covered on into one group of nestable pipeline Lower end and press-in, play closed conduct lower end interlayer gap back cover effect；
6) slurry is slowly injected into interlayer by the first flexible pipe (2), until filling interlayer；
7) injection is excluded to being filled with the interlayer vacuum-pumping about 1-20 minutes of slurry, negative pressure by vavuum pump through the second flexible pipe (3) Bubble in interlayer in slurry, it is then slow to reduce negative pressure until normal pressure；First diameter pipes (7) and Second bobbin diameter pipeline (8) interlayer is formed between；
8) solidification slurry obtains Polymer interlayers (10), until firmly bonding integral, dismounting step with inorganic material pipeline The rapid elastic rubber sealing ring (1) and lower elastic rubber sealing ring (9) 4) covered, obtains radiation proof Sandwich pipeline.
8. a kind of preparation method of radiation proof Sandwich pipeline according to claim 7, it is characterised in that：In described step 5) after, by the pipeline proper alignment after multigroup back cover on grid pallet (12), grid pallet can be accommodated by moving into one together (12) and in the container of neat in line pipeline, step 6 is then carried out) -8).
9. a kind of preparation method of radiation proof Sandwich pipeline according to claim 7, it is characterised in that：Described step 5) Back cover process replace with step 3) in pipeline lower end interlayer in fill in the PVB that width is more than or be equal to interlayer spacing Film, and with hot blast by PVB adhesive tape bake it is soft be fixed in Polymer interlayers (10), play closed conduct lower end interlayer gap Effect；Or the high back cover glue of 10-20mm is filled in the bottom interlayer of pipeline；Or by means of flame, heating element heating with And realize back cover under solder auxiliary.
10. a kind of preparation method of radiation proof Sandwich pipeline according to claim 7, it is characterised in that：Described step 8) in, solidification temperature is 0~120 DEG C.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019006959A1 (en) * 2017-07-06 2019-01-10 盐城市华鸥实业有限公司 Laminated inorganic pipeline and preparation method therefor
CN110164576A (en) * 2019-05-17 2019-08-23 中国核电工程有限公司 A kind of split type tube bank slot

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2035034U (en) * 1988-02-11 1989-03-29 广东省建筑科研设计所 Conveyer pipe made of sandwich fibre reinforced plastic
CN101135403A (en) * 2006-09-01 2008-03-05 李兴也 Alkalis excited inorganic gel mortar interlining composite pipes
US20100112248A1 (en) * 2008-10-31 2010-05-06 E.I. Du Pont De Nemours And Company Highly abrasion-resistant grafted polyolefin pipe
CN105150636A (en) * 2015-06-19 2015-12-16 中科华核电技术研究院有限公司 Flexible shielding material and preparation method thereof
CN204942783U (en) * 2015-07-28 2016-01-06 天津天筑禄通建材科技有限公司 A kind of crushing resistance glass fiber reinforced plastic sand-inclusion pipeline

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2035034U (en) * 1988-02-11 1989-03-29 广东省建筑科研设计所 Conveyer pipe made of sandwich fibre reinforced plastic
CN101135403A (en) * 2006-09-01 2008-03-05 李兴也 Alkalis excited inorganic gel mortar interlining composite pipes
US20100112248A1 (en) * 2008-10-31 2010-05-06 E.I. Du Pont De Nemours And Company Highly abrasion-resistant grafted polyolefin pipe
CN105150636A (en) * 2015-06-19 2015-12-16 中科华核电技术研究院有限公司 Flexible shielding material and preparation method thereof
CN204942783U (en) * 2015-07-28 2016-01-06 天津天筑禄通建材科技有限公司 A kind of crushing resistance glass fiber reinforced plastic sand-inclusion pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019006959A1 (en) * 2017-07-06 2019-01-10 盐城市华鸥实业有限公司 Laminated inorganic pipeline and preparation method therefor
CN110164576A (en) * 2019-05-17 2019-08-23 中国核电工程有限公司 A kind of split type tube bank slot

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