CN105777016B - A kind of high voltage tolerant input electric pipe material and preparation method thereof - Google Patents

A kind of high voltage tolerant input electric pipe material and preparation method thereof Download PDF

Info

Publication number
CN105777016B
CN105777016B CN201610216313.XA CN201610216313A CN105777016B CN 105777016 B CN105777016 B CN 105777016B CN 201610216313 A CN201610216313 A CN 201610216313A CN 105777016 B CN105777016 B CN 105777016B
Authority
CN
China
Prior art keywords
high voltage
input electric
cement
electric pipe
voltage tolerant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201610216313.XA
Other languages
Chinese (zh)
Other versions
CN105777016A (en
Inventor
黄修林
吴雄
卞周宏
黄绍龙
彭波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Nanrui Electric Power Engineering Technology Equipment Co ltd
Hubei University
Original Assignee
Auspicious Electric Power Project Engineering Equipment Ltd South Wuhan
Hubei University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Auspicious Electric Power Project Engineering Equipment Ltd South Wuhan, Hubei University filed Critical Auspicious Electric Power Project Engineering Equipment Ltd South Wuhan
Priority to CN201610216313.XA priority Critical patent/CN105777016B/en
Publication of CN105777016A publication Critical patent/CN105777016A/en
Application granted granted Critical
Publication of CN105777016B publication Critical patent/CN105777016B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/90—Electrical properties
    • C04B2111/92—Electrically insulating materials

Abstract

The invention discloses a kind of high voltage tolerant input electric pipe material, it by cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber are with 100:(150‑300):(5‑50):(15‑40):(0.5‑1.0):(0.05‑0.10):The mass ratio of (0.02 0.08) mixes.For the present invention by reasonably forming design, the high voltage tolerant input electric pipe material of preparation has many advantages, such as good high intensity, high insulation, high temperature resistant, easy heat radiation, durability, wear-resisting, resistant to chemical etching, high permeability resistant, high elastic modulus；It can effectively solve the problems, such as that the heat dissipation of conventional power cable organic polymer material with aging, insulation degradation in a high temperauture environment, avoids the loss of power transmission slowly, increase product useful life longevity, reduce financial cost.

Description

A kind of high voltage tolerant input electric pipe material and preparation method thereof
Technical field
The invention belongs to technical field of power transmission, and in particular to a kind of high voltage tolerant input electric pipe material and its preparation side Method.
Background technology
In the planning of structure global interconnection power grid, vast capacity high voltage power transmission pipeline becomes important technical support means One of.Existing transmission line of electricity mainly has overhead transmission line and power cable two ways.Overhead line is aerial conducting wire, and conductor radiates not It is problem, but alternate (interpolar) insulation is mainly by air insulation, therefore phase spacing is larger, active channel width, it is high electric Pressure or extra-high voltage need to further increase channel width and conducting wire distance away the ground when transmitting electricity, comprehensive cost will increase；Power cable Generally use of transmitting electricity organic material insulation, phase spacing is compact, occupies little space, but faces heat dissipation and organic insulation in height Aging and insulation degradation problem, transmission capacity under warm environment are subject to certain restrictions, and cost is expensive.So comprehensive solution Certainly both of these problems can just greatly improve power circuit transmission capacity.
As the design focal point of vast capacity high voltage power transmission pipeline, the selection of insulating materials is most important.Power cable leads to Make dielectric frequently with SF6, crosslinked polyethylene, insulating oil etc.；Resin concrete is as a kind of new insulation material, performance Conjugated polymer material, cement inorganic material and concrete material performance, ensure that insulation and the coordination of heat dissipation performance.PC (trees Fat concrete) as the research of insulating materials start from the eighties in last century, the U.S. substitutes ceramics manufacture insulator with PC, and It is applied in 75kV voltage class, SiO is removed in insulation system material2(generally glass fibre or silicon powder filler) is inorganic Outside material, remaining all high-molecular organic material, and resin accounts for the 40%-60% of insulation system volume.ABB AB selects third Olefin(e) acid ester or ethylene acid esters are mixed into 4 kinds of aggregates as polymer, and the PCC formed with cement mixing, dielectric is pressure-resistant, and impact is strong Degree reaches 24kV/mm, is good high pressure resistant insulation material.But PC insulators due to its surface not as good as ceramics it is smooth, Self-cleaning property is not so good as ceramics or glass, not good enough in heavy pollution regional representation, limits its popularization and application.
Chinese patent " a kind of insulating concrete material and its technology of preparing " (Publication No. CN102617079 A) will polymerize Object and waterproofing agent are formulated into concrete to realize concrete hydrophobicity, reduce inside concrete water absorption rate so as to reach concrete High resistance, but high power capacity high-tension transmission line requirements are also far not achieved in PCC dielectric strengths prepared by this method.It is Chinese special Sharp " a kind of high-impedance high-impermeability concrete material and preparation method thereof " (200810046967 A of Publication No. CN) proposes poly- Object and lightweight aggregate are closed to realize the high compactness of inside concrete and high permeability resistant energy, but the lightweight aggregate through pre-wetted treatment is easily led to The increase of entire concrete system interior humidity so that its concrete resistivity reduces, and is not suitable in high voltage environment.
The content of the invention
To realize ultra-high capacity high-tension transmission pipeline good insulating performance, the organic insulations such as traditional crosslinked polyethylene are solved Material heat dissipation, organic insulation aging and insulation degradation problem and tradition PC insulator self-cleaning performances in a high temperauture environment The financial cost problem that difference, resin content are high and bring, a kind of high insulation of present invention offer, high temperature resistant, easy heat radiation, durability are good And economic high voltage tolerant input electric pipe material and preparation method thereof, the high voltage tolerant input electric pipe material can effectively solve tradition The problem of heat dissipation of power cable organic material is slow, delays aging in a high temperauture environment, insulation degradation, reduces the damage of power transmission Consumption increases product useful life longevity, reduces financial cost, ensures the safe operation under 35kV voltage class.
To achieve the above object, the technical solution adopted by the present invention is：A kind of high voltage tolerant input electric pipe material, it is by water Mud, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber are with 100:(150-300):(5-50): (15-40):(0.5-1.0):(0.05-0.10):The mass ratio of (0.02-0.08) mixes.
In said program, the cement is portland cement, aluminate cement, one kind in sulphate aluminium cement or several Kind.
In said program, the particle size range of the cement meets：The 1-20 μm of 10-20% for accounting for gross mass, 80-100 μ M accounts for the 50-70% of gross mass；Or meet：The 1-4 μm of 2-5% for accounting for gross mass, the 10-15 μm of 15-25% for accounting for gross mass, The 100-120 μm of 50-65% for accounting for gross mass；Or meet：The 0.5-4 μm of 2-5% for accounting for gross mass, the 8-15 μm of 7- for accounting for gross mass 15%, the 40-60 μm of 20-30% for accounting for gross mass, the 110-130 μm of 30-40% for accounting for gross mass.
It is described ultra-fine to gather materials for high-purity spy's fine quartz sand, SiO in said program2Content >=99.9%, Fe2O3Content is small 4h need to be no less than through 105 DEG C of drying by gathering materials before 0.001%, use.
In said program, the fine powder is flyash, the one or more in wollastonite, mica powder, metakaolin.
In said program, the macromolecule emulsion is aqueous epoxy resins, ethylene acid esters lotion, acrylic acid ester emulsion, benzene One or more in ethylene-acrylate rabbit grandfather, vinyl acetate emulsion, vinylacetate, styrene-butadiene latex, propyl benzene latex.
In said program, the water-reducing agent is polycarboxylic acid series high efficiency water reducing agent, Gu contain for 20-25%, water-reducing rate 25- 27%.
In said program, the antifoaming agent is organic silicon antifoaming agent.
In said program, the fiber for polyethylene fibre, polypropylene fibre, polyacrylonitrile fibre, vinal, One or more in basalt fibre.
A kind of preparation method of above-mentioned high voltage tolerant input electric pipe material, comprises the following steps：
1) weighing of each component：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fibre Dimension is with 100:(150-300):(5-50):(15-40):(0.5-1.0):(0.05-0.10):The mass ratio of (0.02-0.08) into Row weighs；
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber are added in high-speed stirred container and carry out dry mixing 1- Then 2min adds in the macromolecule emulsion weighed and continues mix 1-2min, adds water-reducing agent and antifoaming agent is obtained with shear agitation The high voltage tolerant input electric pipe material (macro-defect-free cement concrete) newly mixed；
In said program, the shear agitation rate is 100-200rpm, time 4-5min.
The high voltage tolerant input electric pipe material prepared as stated above is applied to prepare high voltage tolerant input electric pipe material, specifically Step is as follows：Transmission of electricity metal tube and shielding protection layer inside power transfer conduit is installed, using vacuum pumping pump feed technique by the water of preparation Cement concrete is pressed into from power transfer conduit bottom, and air is extracted at the top of pipeline and keeps negative pressure 0.2Mpa, while takes tube wall vibration Device excludes the bubble in slurry, ensures the good compactness of cement concrete, through 6-12 it is small when room temperature negative pressure and during 12-24 small After 80 DEG C of ordinary pressure curings, both ends seal to obtain the electric pipe of resistance to high voltage tolerant input material using insulating resin.
In said program, polyethylene, crosslinked polyethylene, polyvinyl chloride, crosslinking polychlorostyrene second can be used in the shielding protection layer Alkene, rubber use up edge sheath etc..
The present invention mechanism be：
The present invention ensures its excellent insulation performance by the compactness and water imbibition of control pipeline power transmission material：Pass through Optimize cement granules grading distributed area, be allowed into the distribution of bifurcation (or tri-state, four states) section, form the dense skeleton of gelling system Accumulation reduces aquation water requirement, and water-cement ratio is made to be less than 0.25；Simultaneously using macromolecule emulsion replacing whole mixing water and fine coal The fine fillers such as ash, wollastonite, mica powder or higher territory improve the interfacial transition zone compact structure of concrete, reduce cement The solution hole number left after aquation；Simultaneously in the case of not volume external adding water, the emulsion polymerization for insulating excellent is joined Moisture with hydrated reaction of cement absorption lotion, promotes high molecular polymer demulsification to cure crosslinking, forms-the polymer-that gathers materials The combination of inorganic coagulation material；Polymer dehydration forms thin polymer film after curing and has effectively blocked power transfer conduit material internal Solution hole transmission channels, ensure that the insulating properties of the power transfer conduit material in high voltage environment；Antifoaming agent contributes to consumption to stir The air introduced during type is mixed, system air bubble content is substantially reduced, ensures the compactness of whole system；Simultaneously using negative Vacuum and pumping injection pressure technique are pressed, is conserved after the completion of shaping using room temperature negative pressure and high-temperature pressure, ensures that power transfer conduit material exists Enter during entire blanks and moulding and conserving without outside air, last pipe ends insulating resin encapsulation process, whole processing technology Not volume external adding water and contactless with outside moisture, shielding protection layer and both ends insulating resin layer effectively obstructed outside moisture into Enter；In addition, filler can play secondary hydration effect with subparticipation hydrated cementitious, system free water content is reduced, is improved The interfacial structure of Behavior of Hardened Cement Paste transition region is conducive to concrete integral structure stability and compactness, improves anti-permeability performance.
By reasonably forming and technological design, reach the high voltage tolerant input electric pipe material (PCC) of preparation has the present invention The dielectric strength of machine insulating materials 80-100%, while thermal conductivity factor increases to more than 1.0W/mK, and there is high intensity, height to insulate, The advantages that high temperature resistant, easy heat radiation, durability are good, wear-resisting, resistant to chemical etching, high permeability resistant, high elastic modulus is transmitted electricity for pipeline Insulating layer packing material between conductor, and production cost can be significantly reduced.Prepared by traditional organic insulation and the present invention The production cost of high voltage tolerant input electric pipe material is shown in Table 1.
Table 1
Compared with prior art, beneficial effects of the present invention are：
1) for the dielectric strength of high voltage tolerant input electric pipe material of the present invention up to 15Kv/mm, stable operating voltage is reachable 35Kv, continual and steady operating temperature are more than 90 DEG C, and insulated working can reach 160 DEG C in short-term, and the resistance to height prepared under natural environment Pressure power transfer conduit component will not cracking and dusting.
2) the high voltage tolerant input electric pipe material can significantly improve insulation system heat transfer, heat conduction level, and thermal conductivity factor is by passing The 0.01-0.5W/mK of system is increased to 1.3-1.7W/mK, and heat-resisting quantity, ageing-resistant performance are more excellent.
3) the high voltage tolerant input electric pipe material can reduce insulating materials cost, and insulation performance reaches traditional organic insulation The 80-100% of material, volume resistivity can reach 1010-1011Ω·cm；Tradition is replaced using high voltage tolerant input electric pipe material Organic insulation, metal enclosed gas insulating material and polymer concrete advantageously reduce power carrying wires road fortune Row and maintenance cost improve overall structure durability.
4) the high voltage tolerant input electric pipe material and transmission of electricity metal tube, shielding protection layer adhesion strength are high, and swell-shrink coefficient is small, no Easily there is delamination splitting problem, the high voltage tolerant input electric pipe of preparation can be used for 35kV high-voltage electricity conveying engineerings.
Description of the drawings
Fig. 1 is the structure diagram of 1 gained high voltage tolerant input electric pipe of the embodiment of the present invention.
Wherein, 1 is transmission of electricity metal tube, and 2 be high voltage tolerant input electric pipe material, and 3 be shielding protection layer.
Specific embodiment
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention is not It is limited only to the following examples.
Unless specific instructions, the reagent used is commercially available chemical reagent or industrial products to following embodiment.
In following embodiment, the ultra-fine glass sand produced for ten thousand river quartz Development Co., Ltds that gathers materials, granularity Scope 0.1-0.01mm, SiO2Effective content is more than 99.9%, Fe2O3Content is less than 0.001%；The water-reducing agent is won for Jiangsu The YJ series of high efficiency water-reducing agents of spy's production, solid content 25%, water-reducing rate 26%；The antifoaming agent is Hefei ten thousand into environmentally friendly section The BYC-014A Polyether Modified Polysiloxanes Defoaming Agents of skill Co., Ltd production, active matter effective content are more than 18%.
Embodiment 1
A kind of high voltage tolerant input electric pipe material, its preparation method comprise the following steps：
1) raw material weighs：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber with 100:280:6:30:0.6:0.07:0.04 mass ratio is weighed, wherein cement selection 52.5R Portland cements, Grain size meets 80-100 μm of account for gross mass (cement gross mass) 60%, 1-20 μm and accounts for the 20% of gross mass (cement gross mass), Remainder is mass percent shared by other grain sizes；Fine powder selects wollastonite；Macromolecule emulsion selects styrene-propene Acid esters lotion；Fiber selects polypropylene fibre.
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber add in high-speed stirred container in carry out dry mixing 1min, Then add in the macromolecule emulsion weighed and continue mix 2min, add water-reducing agent and antifoaming agent and cut at a high speed (150rpm) It cuts stirring 5min and obtains the high voltage tolerant input electric pipe material newly mixed.
High voltage tolerant input electric pipe material obtained by the present embodiment is applied to assembling high voltage tolerant input electric pipe, specific steps are such as Under：Transmission of electricity metal tube and shielding protection layer (crosslinked polyethylene uses up edge sheath) inside power transfer conduit is installed, using vacuum pumping pump The cement concrete of preparation is pressed by feed technique from power transfer conduit bottom, and air is extracted at the top of pipeline and keeps negative pressure 0.2Mpa, Certain tube wall vibration device is taken to exclude the bubble in slurry simultaneously, ensures the good compactness of cement concrete, through 8 it is small when Room temperature negative pressure and 20 it is small when 80 DEG C of ordinary pressure curings after, both ends with insulating resin seal the high voltage tolerant input electric pipe (structure is shown Intention is shown in Fig. 1).
The performance test results of high voltage tolerant input electric pipe material are shown in Table 2 obtained by the present embodiment.
Embodiment 2
A kind of high voltage tolerant input electric pipe material, its preparation method comprise the following steps：
1) raw material weighs：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber with 100:160:40:19:0.8:0.06:0.05 mass ratio is weighed, wherein 42.5 Portland cement of cement selection, Grain size meets 80-100 μm of account for gross mass (cement gross mass) 65%, 1-20 μm and accounts for the 12% of gross mass (cement gross mass), Remainder is mass percent shared by other grain sizes；Fine powder selects mica powder；Macromolecule emulsion is by ethylene acid esters and third Olefin(e) acid ester is with mass ratio 1:1 mass ratio mixes；Fiber selects basalt fibre.
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber add in high-speed stirred container in carry out dry mixing 2min, Then add in the macromolecule emulsion weighed and continue mix 1min, add water-reducing agent and antifoaming agent and cut at a high speed (120rpm) It cuts stirring 4min and obtains the high voltage tolerant input electric pipe material newly mixed.
High voltage tolerant input electric pipe material obtained by the present embodiment is applied to assembling high voltage tolerant input electric pipe, specific steps are such as Under：Transmission of electricity metal tube and shielding protection layer (polyvinyl chloride uses up edge sheath) inside power transfer conduit is installed, is pumped using vacuumizing The cement concrete of preparation is pressed by technology from power transfer conduit bottom, and air is extracted at the top of pipeline and keeps negative pressure 0.2Mpa, together When certain tube wall vibration device is taken to exclude the bubble in slurry, ensure the good compactness of cement concrete, through 12 it is small when Room temperature negative pressure and 24 it is small when 80 DEG C of ordinary pressure curings after, both ends with insulating resin seal the high voltage tolerant input electric pipe (structure is same Embodiment 1).
The performance test results of high voltage tolerant input electric pipe material are shown in Table 2 obtained by the present embodiment.
Embodiment 3
A kind of high voltage tolerant input electric pipe material, its preparation method comprise the following steps：
1) raw material weighs：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber with 100:220:18:16:0.5:0.05:0.07 mass ratio is weighed, wherein cement selection 52.5R sulphate aluminium cements, Grain size meets 80-100 μm of account for gross mass (cement gross mass) 68%, 1-20 μm and accounts for the 18% of gross mass (cement gross mass), Remainder is mass percent shared by other grain sizes；Fine powder is by mica powder and metakaolin with 3:1 mass ratio mixing It forms；Macromolecule emulsion aqueous epoxy resins；Fiber selects polyethylene fibre.
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber add in high-speed stirred container in carry out dry mixing 2min, Then add in the macromolecule emulsion weighed and continue mix 2min, add water-reducing agent and antifoaming agent and cut at a high speed (180rpm) It cuts stirring 4min and obtains the high voltage tolerant input electric pipe material (macro-defect-free cement concrete) newly mixed.
High voltage tolerant input electric pipe material obtained by the present embodiment is applied to assembling high voltage tolerant input electric pipe, specific steps are such as Under：Transmission of electricity metal tube and shielding protection layer (polyethylene uses up edge sheath) inside power transfer conduit is installed, using vacuumizing pumping skill The cement concrete of preparation is pressed by art from power transfer conduit bottom, and air is extracted at the top of pipeline and keeps negative pressure 0.2Mpa, simultaneously Certain tube wall vibration device is taken to exclude the bubble in slurry, ensures the good compactness of cement concrete, through 7 it is small when room temperature Negative pressure and 16 it is small when 80 DEG C of ordinary pressure curings after, both ends with insulating resin seal to obtain the high voltage tolerant input electric pipe (structure with implement Example 1).
The performance test results of high voltage tolerant input electric pipe material are shown in Table 2 obtained by the present embodiment.
Embodiment 4
A kind of high voltage tolerant input electric pipe material, its preparation method comprise the following steps：
1) raw material weighs：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber with 100:260:10:35:0.9:0.08:0.08 mass ratio is weighed, wherein cement selection 42.5R sulphate aluminium cements, Grain size meets 100-120 μm of account for gross mass (cement gross mass) 55%, 10-15 μm and accounts for gross mass (cement gross mass) 20%, 1-4 μm account for gross mass (cement gross mass) 4%, remainder be mass percent shared by other grain sizes；Fine powder Select flyash；Macromolecule emulsion is by styrene-butadiene latex and propyl benzene latex with 1:1 mass ratio mixes；Fiber is fine by basalt Peacekeeping vinal is with 1:1 mass ratio mixes.
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber add in high-speed stirred container in carry out dry mixing 2min, Then add in the macromolecule emulsion weighed and continue mix 1min, add water-reducing agent and antifoaming agent and cut at a high speed (120rpm) It cuts stirring 4min and obtains the high voltage tolerant input electric pipe material (macro-defect-free cement concrete) newly mixed.
High voltage tolerant input electric pipe material obtained by the present embodiment is applied to assembling high voltage tolerant input electric pipe, specific steps are such as Under：Transmission of electricity metal tube and shielding protection layer (rubber uses up edge sheath) inside power transfer conduit is installed, using vacuum pumping pump feed technique The cement concrete of preparation from power transfer conduit bottom is pressed into, air is extracted at the top of pipeline and keeps negative pressure 0.2Mpa, is adopted simultaneously Certain tube wall vibration device is taken to exclude the bubble in slurry, ensures the good compactness of cement concrete, through 10 it is small when room temperature Negative pressure and 20 it is small when 80 DEG C of ordinary pressure curings after, both ends with insulating resin seal to obtain the high voltage tolerant input electric pipe (structure with implement Example 1).
The performance test results of high voltage tolerant input electric pipe material are shown in Table 2 obtained by the present embodiment.
Embodiment 5
A kind of high voltage tolerant input electric pipe material, its preparation method comprise the following steps：
1) raw material weighs：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber with 100:200:48:18:0.7:0.06:0.09 mass ratio is weighed, wherein cement selection CA-60 aluminate cements, grain Footpath meets 100-120 μm of account for gross mass (cement gross mass) 60%, 10-15 μm and accounts for the 22% of gross mass (cement gross mass), 1-4 μm account for gross mass (cement gross mass) 3%, remainder be mass percent shared by other grain sizes；Fine powder is by powder Coal ash and wollastonite are with 4:1 mass ratio mixes；Macromolecule emulsion is by acrylic acid ester emulsion and cinnamic acrylic ester breast Liquid is with 1:2 mass ratio mixes；Fiber selects vinal.
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber add in high-speed stirred container in carry out dry mixing 1min, Then add in the macromolecule emulsion weighed and continue mix 1min, add water-reducing agent and antifoaming agent and cut at a high speed (150rpm) It cuts stirring 4min and obtains the high voltage tolerant input electric pipe material (macro-defect-free cement concrete) newly mixed.
High voltage tolerant input electric pipe material obtained by the present embodiment is applied to assembling high voltage tolerant input electric pipe, specific steps are such as Under：Transmission of electricity metal tube and shielding protection layer (crosslinked polyethylene uses up edge sheath) inside power transfer conduit is installed, using vacuum pumping pump The cement concrete of preparation is pressed by feed technique from power transfer conduit bottom, and air is extracted at the top of pipeline and keeps negative pressure 0.2Mpa, Certain tube wall vibration device is taken to exclude the bubble in slurry simultaneously, ensures the good compactness of cement concrete, through 7 it is small when Room temperature negative pressure and 13 it is small when 80 DEG C of ordinary pressure curings after, both ends with insulating resin seal the high voltage tolerant input electric pipe (structure is same Embodiment 1).
The performance test results of high voltage tolerant input electric pipe material are shown in Table 2 obtained by the present embodiment.
Embodiment 6
A kind of high voltage tolerant input electric pipe material, its preparation method comprise the following steps：
1) raw material weighs：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber with 100:180:45:28:0.6:0.06:0.03 mass ratio is weighed, wherein cement selection CA-70 aluminate cements, grain Footpath meets 80-100 μm of account for gross mass (cement gross mass) 50%, 1-20 μm and accounts for the 14% of gross mass (cement gross mass), remains Remaining part is divided into mass percent shared by other grain sizes；Fine powder is by flyash and metakaolin with 5:1 mass ratio mixing and Into；Macromolecule emulsion is by selection aqueous epoxy resins；Fiber is by polyethylene fiber peacekeeping polypropylene fibre with 1:1 mass ratio mixing It forms.
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber add in high-speed stirred container in carry out dry mixing 2min, Then add in the macromolecule emulsion weighed and continue mix 1min, add water-reducing agent and antifoaming agent and cut at a high speed (120rpm) It cuts stirring 5min and obtains the high voltage tolerant input electric pipe material (macro-defect-free cement concrete) newly mixed.
High voltage tolerant input electric pipe material obtained by the present embodiment is applied to assembling high voltage tolerant input electric pipe, specific steps are such as Under：Transmission of electricity metal tube and shielding protection layer (crosslinked polyethylene uses up edge sheath) inside power transfer conduit is installed, using vacuum pumping pump The cement concrete of preparation is pressed by feed technique from power transfer conduit bottom, and air is extracted at the top of pipeline and keeps negative pressure 0.2Mpa, Certain tube wall vibration device is taken to exclude the bubble in slurry simultaneously, ensures the good compactness of cement concrete, through 8 it is small when Room temperature negative pressure and 14 it is small when 80 DEG C of ordinary pressure curings after, both ends with insulating resin seal the high voltage tolerant input electric pipe (structure is same Embodiment 1).
The performance test results of high voltage tolerant input electric pipe material are shown in Table 2 obtained by the present embodiment.
Embodiment 7
A kind of high voltage tolerant input electric pipe material, its preparation method comprise the following steps：
1) raw material weighs：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber with 100:250:25:25:0.7:0.09:0.09 mass ratio is weighed, and wherein cement is by aluminate cement and 42.5R sulphur aluminic acids Salt cement is with 2:1 mass ratio mixes, and grain size meets 110-130 μm of 35%, the 40- for accounting for gross mass (cement gross mass) 60 μm of account for gross mass (cement gross mass) 25%, 8-15 μm account for gross mass (cement gross mass) 12%, 0.5-4 μm accounts for total matter The 4% of (cement gross mass) is measured, remainder is mass percent shared by other grain sizes；Fine powder is by wollastonite and mica powder With 4:1 mass ratio mixes；Macromolecule emulsion is by styrene-acrylate emulsion and vinyl acetate emulsion with 3:1 Mass ratio mixes；Fiber selects basalt fibre.
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber add in high-speed stirred container in carry out dry mixing 1min, Then add in the macromolecule emulsion weighed and continue mix 1min, add water-reducing agent and antifoaming agent and cut at a high speed (180rpm) It cuts stirring 5min and obtains the high voltage tolerant input electric pipe material (macro-defect-free cement concrete) newly mixed.
High voltage tolerant input electric pipe material obtained by the present embodiment is applied to assembling high voltage tolerant input electric pipe, specific steps are such as Under：Transmission of electricity metal tube and shielding protection layer (cross-linked polrvinyl chloride uses up edge sheath) inside power transfer conduit is installed, using vacuumizing The cement concrete of preparation is pressed by pumping technology from power transfer conduit bottom, and air is extracted at the top of pipeline and keeps negative pressure 0.2Mpa, while certain tube wall vibration device is taken to exclude the bubble in slurry, ensure the good compactness of cement concrete, When 8 is small room temperature negative pressure and 14 it is small when 80 DEG C of ordinary pressure curings after, both ends seal to obtain the high voltage tolerant input electric pipe with insulating resin (structure is with embodiment 1).
The performance test results of high voltage tolerant input electric pipe material are shown in Table 2 obtained by the present embodiment.
Embodiment 8
A kind of high voltage tolerant input electric pipe material, its preparation method comprise the following steps：
1) raw material weighs：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber with 100:290:30:38:0.7:0.09:0.07 mass ratio is weighed, and wherein cement is by CA-70 aluminate cements and 42.5R Portland cement is with 2:1 mass ratio mixes, and grain size meets 100-120 μm and accounts for gross mass (cement gross mass) 62%, 10-15 μm of account for gross mass (cement gross mass) 16%, 1-4 μm account for the 3% of gross mass (cement gross mass), remainder It is divided into mass percent shared by other grain sizes；Fine powder selects metakaolin；Macromolecule emulsion by vinyl acetate emulsion and Ethylene acid esters lotion is with 1:2 mass ratio mixes；Fiber is by polyacrylonitrile fibre and basalt fibre with 1:1 mass ratio It mixes.
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber add in high-speed stirred container in carry out dry mixing 2min, Then add in the macromolecule emulsion weighed and continue mix 2min, add water-reducing agent and antifoaming agent and cut at a high speed (150rpm) It cuts stirring 4min and obtains the high voltage tolerant input electric pipe material (macro-defect-free cement concrete) newly mixed.
High voltage tolerant input electric pipe material obtained by the present embodiment is applied to assembling high voltage tolerant input electric pipe, specific steps are such as Under：Transmission of electricity metal tube and shielding protection layer (polyethylene uses up edge sheath) inside power transfer conduit is installed, using vacuumizing pumping skill The cement concrete of preparation is pressed by art from power transfer conduit bottom, and air is extracted at the top of pipeline and keeps negative pressure 0.2Mpa, simultaneously Certain tube wall vibration device is taken to exclude the bubble in slurry, ensures the good compactness of cement concrete, through 7 it is small when room temperature Negative pressure and 10 it is small when 80 DEG C of ordinary pressure curings after, both ends with insulating resin seal to obtain the high voltage tolerant input electric pipe (structure with implement Example 1).
The performance test results of high voltage tolerant input electric pipe material are shown in Table 2 obtained by the present embodiment.
High voltage tolerant input electric pipe material described in Examples 1 to 8 is subjected to dielectric breakdown strength (dielectric strength, Kv/mm), resistance to The performance tests such as hot grade, thermal conductivity factor dry samples for 24 hours for 105 DEG C, normative reference GBT 1408-2006 before test《Insulation material Expect electrical strength test method》、GBT 11021-2014《Electric insulation heat resistance and method for expressing test result》, the results are shown in Table 2。
The performance test results of high voltage tolerant input electric pipe material obtained by 2 Examples 1 to 8 of table
It can be seen that according to data in table 1：The high voltage tolerant input electric pipe material property prepared using this method reaches country Standard requirement, dielectric strength >=15Kv/mm, temperature classification reach F grades of standards, concrete crushing strength >=55Mpa, thermal conductivity factor >=1.2W/mK is significantly better than full stress-strain insulated power cable, and production cost is lower.
In conclusion high voltage tolerant input electric pipe material of the present invention have intensity high, high insulation, high temperature resistant, easy heat radiation, Durability waits well excellent properties, meets property indices as defined in standard, is conducive to practical engineering application.
The foregoing is merely the preferred embodiment of the present invention, it is noted that comes for those of ordinary skill in the art It says, without departing from the concept of the premise of the invention, makes several modifications and variations, these belong to the protection model of the present invention It encloses.

Claims (9)

1. a kind of high voltage tolerant input electric pipe material, it by cement, ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, disappear Infusion and fiber are with 100:(150-300):(5-50):(15-40):(0.5-1.0):(0.05-0.10):(0.02-0.08's) Mass ratio mixes；
The particle size range of the cement meets：The 1-20 μm of 10-20% for accounting for gross mass, the 80-100 μm of 50- for accounting for gross mass 70%；Or meet：The 1-4 μm of 2-5% for accounting for gross mass, the 10-15 μm of 15-25% for accounting for gross mass, 100-120 μm accounts for gross mass 50-65%；Or meet：The 0.5-4 μm of 2-5% for accounting for gross mass, the 8-15 μm of 7-15% for accounting for gross mass, 40-60 μm accounts for always The 20-30% of quality, the 110-130 μm of 30-40% for accounting for gross mass.
2. high voltage tolerant input electric pipe material according to claim 1, which is characterized in that the cement for portland cement, One or more of aluminate cement, sulphate aluminium cement.
3. high voltage tolerant input electric pipe material according to claim 1, which is characterized in that described ultra-fine to gather materials for high purity quartz Sand, SiO2Effective content is more than 99.9%, Fe2O3Content is less than 0.001%.
4. high voltage tolerant input electric pipe material according to claim 1, which is characterized in that the fine powder for flyash, One or more in wollastonite, mica powder, metakaolin.
5. high voltage tolerant input electric pipe material according to claim 1, which is characterized in that the macromolecule emulsion is epoxy breast Liquid, ethylene acid esters lotion, acrylic acid ester emulsion, styrene-acrylate emulsion, vinyl acetate acid esters lotion, vinylacetate, One or more in styrene-butadiene latex, propyl benzene latex.
6. high voltage tolerant input electric pipe material according to claim 1, which is characterized in that the water-reducing agent is high for polycarboxylic-acid Water-reducing agent is imitated, Gu contain for 20-25%, water-reducing rate 25-27%.
7. high voltage tolerant input electric pipe material according to claim 1, which is characterized in that the fiber for polyethylene fibre, One or more in polypropylene fibre, polyacrylonitrile fibre, vinal, basalt fibre.
8. according to the preparation method of any one of the claim 1~7 high voltage tolerant input electric pipe material, which is characterized in that including Following steps：
1) raw material weighs：By cement, it is ultra-fine gather materials, fine powder, macromolecule emulsion, water-reducing agent, antifoaming agent and fiber are with 100: (150-300):(5-50):(15-40):(0.5-1.0):(0.05-0.10):The mass ratio of (0.02-0.08) is weighed；
2) batch mixing：By cement, it is ultra-fine gather materials, fine powder and fiber add in high-speed stirred container in carry out dry mixing 1-2min, so The macromolecule emulsion weighed is added in afterwards and continues mix 1-2min, adds water-reducing agent and antifoaming agent carries out shear agitation and obtains what is newly mixed High voltage tolerant input electric pipe material.
9. preparation method according to claim 8, which is characterized in that the shear agitation rate is 100-200rpm, when Between be 4-5min.
CN201610216313.XA 2016-04-08 2016-04-08 A kind of high voltage tolerant input electric pipe material and preparation method thereof Expired - Fee Related CN105777016B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610216313.XA CN105777016B (en) 2016-04-08 2016-04-08 A kind of high voltage tolerant input electric pipe material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610216313.XA CN105777016B (en) 2016-04-08 2016-04-08 A kind of high voltage tolerant input electric pipe material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN105777016A CN105777016A (en) 2016-07-20
CN105777016B true CN105777016B (en) 2018-05-22

Family

ID=56395026

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610216313.XA Expired - Fee Related CN105777016B (en) 2016-04-08 2016-04-08 A kind of high voltage tolerant input electric pipe material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN105777016B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113871057B (en) * 2021-08-13 2023-08-22 江苏上上电缆集团有限公司 Manufacturing method of F-level temperature-resistant flexible battery acid-resistant high-voltage cable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105367008B (en) * 2015-12-15 2018-08-03 湖北大学 A kind of St/ba Soap-free Emulsion polymer concrete and preparation method thereof

Also Published As

Publication number Publication date
CN105777016A (en) 2016-07-20

Similar Documents

Publication Publication Date Title
CN103965543B (en) A kind of high voltage direct current cable cross-linkable polyethylene insulation material
CN104529333B (en) A kind of discarded fired brick regeneration C30 concrete and preparation method thereof
JP5331223B2 (en) Ground module and manufacturing method thereof
CN109942793B (en) Organic fluorine modified epoxy resin for improving surface flashover voltage and preparation method and application thereof
Tian et al. Enhanced ohmic heating and chloride adsorption efficiency of conductive seawater cementitious composite: Effect of non-conductive nano-silica
CN107311555A (en) A kind of cement-based absorption material for filling graphene oxide and preparation method thereof
CN101650994B (en) Suspension insulator
CN108997894A (en) A kind of conductive coating
CN104312147A (en) Zinc oxide whisker/graphene nanosheet synergistically modified cyanate ester resin heat conduction composite and preparation method thereof
CN105968820B (en) High-insulation-resistance high-temperature-resistant ceramic rubber for heating cable and preparation method thereof
CN105777016B (en) A kind of high voltage tolerant input electric pipe material and preparation method thereof
JPH02307853A (en) Conductive cement composition and conductive hardening body obtained from composition thereof
CN113881190A (en) Epoxy resin composite material for packaging power electronic transformer and preparation method thereof
CN102391593A (en) Environment-friendly cable filler and preparation method thereof
CN105255196A (en) Semi-conductive silicon rubber material for high-voltage direct-current cable accessory and preparation method of semi-conductive silicon rubber material
CN106589535A (en) Polymerized gold-silicon insulator material with tracking and erosion resistant grade being 1A4.5 or higher, and preparation method and application thereof
KR102279438B1 (en) Epoxy resin composition and transformer comprising the same
CN106431115A (en) Foam concrete with excellent electric conductivity
CN103408949A (en) Ultra-high-hardness mixed rubber and preparation method thereof
CN103642292A (en) Preparation method of conducting paint, conducting paint and application thereof
CN114149213B (en) Cement-based conductive composite material based on conductive aggregate and preparation method thereof
CN110628183B (en) Epoxy glass fiber nanocomposite for high-voltage switch insulating pull rod and preparation method thereof
CN108766622A (en) A kind of conduction BMC tubular molding compound and preparation method thereof
CN110228965B (en) Warm-mixed asphalt mixture for roads and preparation method thereof
CN111072341A (en) Graphite carbon fiber conductive cement soil and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Huang Xiulin

Inventor after: Wu Xiong

Inventor after: Bian Zhouhong

Inventor after: Huang Shaolong

Inventor after: Peng Bo

Inventor before: Huang Xiulin

Inventor before: Bian Zhouhong

Inventor before: Huang Shaolong

Inventor before: Peng Bo

TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20170516

Address after: 430062 Wuhan, Hubei Friendship Road, No. 368, Wuchang

Applicant after: Hubei University

Applicant after: WUHAN NANRUI ELECTRIC POWER ENGINEERING TECHNOLOGY EQUIPMENT CO.,LTD.

Address before: 430062 Wuhan, Hubei Friendship Road, No. 368, Wuchang

Applicant before: Hubei University

GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180522