CN103526981B - Fiberglass elbow/horizontal segment position Cylinder wall structure and there is the chimney of this structure - Google Patents
Fiberglass elbow/horizontal segment position Cylinder wall structure and there is the chimney of this structure Download PDFInfo
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- CN103526981B CN103526981B CN201310520484.8A CN201310520484A CN103526981B CN 103526981 B CN103526981 B CN 103526981B CN 201310520484 A CN201310520484 A CN 201310520484A CN 103526981 B CN103526981 B CN 103526981B
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Abstract
The present invention relates to a kind of fiberglass elbow/horizontal segment position Cylinder wall structure and there is the chimney of this structure.Fiberglass elbow/horizontal segment position Cylinder wall structure includes liner functional layer, intermediate structure layer and optional external protection, and liner functional layer includes surface carpet veneer injection layer；Intermediate structure layer includes several structure subgrade, and structure subgrade includes: structure monolayer A structure monolayer B structure monolayer C structure monolayer D, and the thickness t of described intermediate structure layer is in the range of 15≤t≤50mm；Optional external protection includes gel coating resin.The fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure, has good axial mechanical property and hoop mechanical property, it is simple to construction and quality control, and service life is long, it is adaptable to large-size thermal power plant.
Description
Technical field
The present invention relates to chimney, be specifically related to a kind of fiberglass elbow/horizontal segment position Cylinder wall structure and there is the chimney of this structure.
Background technology
Fibre reinforced plastics, are using fiber and its products as reinforcing material, make matrix material with synthetic resin, the high-performance composite materials formed through specific moulding process.(Glass Fiber Reinforced Plastics is also referred to as fiberglass reinforced plastics to fiberglass, internationally recognized dummy suffix notation is GFRP or FRP) it is the one in fibre reinforced plastics, by synthetic resin and glass fibre through combination process, a kind of functional material being made, has excellent designability, machinability and recoverability.
Conventional domestic FRP is used for storage tank and pipeline, and its design of material lays particular emphasis on and meets product function, the highest to mechanical property requirements, and need emphasis is the hoop performance of FRP product, not specially requires axial property.In recent years, owing to FRP product can solve the etching problem of chimney, engineer starts to consider that FRP makes chimney to be used.
Large thermal power plant chimney is vertically arranged, and height, often beyond 200m, is suspended in the top of concrete urceolus or each support zone, and huge gravity laod transmits vertically, this loading characteristic require the mechanical property of FRP chimney with axially for main ring to for auxiliary.Therefore, to FRP be used for the chimney of large thermal power plant, in addition to needs FRP chimney meets Functional Requirement (such as corrosion-resistant, static conductive, fire-retardant, uvioresistant, anti-aging, accumulatingdust), in addition it is also necessary to meet mechanical property (axially and the stretching of hoop, bend, shear, compression performance etc.) requirement.
When flue gas is after horizontal pipe enters chimney, angle and velocity variations are bigger, there is turbulent phenomenon, air-flow and dust-laden acid are dripped and chimney inside can be washed away abrasion strongly, therefore for enabling fiber glass reinforced plastic chimney to be applicable to large thermal power plant, tackle its elbow/horizontal segment position and carry out appropriate design, but the situation at elbow/horizontal segment position is the most complicated, the axial load of existing vertical section, there is again the hoop load of horizontal segment, design difficulty is very big, the most domestic case history still not having large-size thermal power plant FRP chimney.
Summary of the invention
It is an object of the invention to provide and a kind of can meet Functional Requirement and can meet again the fiberglass elbow/horizontal segment position Cylinder wall structure of mechanical property demand so that the chimney with this structure can be applied at large thermal power plant.
A first aspect of the present invention; a kind of fiberglass elbow/horizontal segment position Cylinder wall structure is provided; including liner functional layer, intermediate structure layer and optional external protection; wherein; described intermediate structure layer includes at least two structure subgrade; from the inside of described fiberglass elbow/horizontal segment position Cylinder wall structure to outside, described structure subgrade includes:
Structure monolayer A-structure monolayer B-structure monolayer C-structure monolayer D,
Wherein, structure monolayer A is injection layer or unidirectional layer of cloth；
Structure monolayer B is nothing or circumferential winding layer；
Structure monolayer C is injection layer or unidirectional layer of cloth；
Structure monolayer D is circumferential winding layer；
And when structure monolayer A is for injection layer, structure monolayer C is unidirectional layer of cloth；Or structure monolayer A is when being unidirectional layer of cloth, structure monolayer C is injection layer；And the thickness of described intermediate structure layer is t, and 15≤t≤50mm.
In another preference, the thickness of described intermediate structure layer is t, and 24≤t≤40mm.
Described optional external protection includes gel coating resin.
Herein, thickness refers to randomly select 25 meansigma methodss measuring the thickness that point records, and such as, the thickness t of intermediate structure layer is to randomly select 25 on intermediate structure layer to measure point, calculates the meansigma methods of 25 thickness recorded, obtains the thickness t of intermediate structure layer.
Herein, " optional " refer to have (can exist) maybe can not have (can not).Described fiber glass reinforced plastic chimney include liner functional layer, intermediate structure layer and optional external protection refer to as described in fiber glass reinforced plastic chimney can have external protection, maybe can there is no external protection.
In another preference, described fiberglass elbow/horizontal segment position Cylinder wall structure is fiber glass reinforced plastic chimney elbow/horizontal segment position Cylinder wall structure.
In another preference, described liner functional layer includes: surface carpet veneer-injection layer；
It is preferred that described liner functional layer also includes the carbon fiber carpet veneer of innermost layer；And/or
It is preferred that may also include scrim layer outside the injection layer of described liner functional layer.
In another preference, described external protection includes gel coating resin, it is preferred that also include surface carpet veneer and/or scrim layer, described surface carpet veneer and/or scrim layer are arranged between described intermediate structure layer and described gel coating resin.
In another preference, described structure monolayer A is injection layer, and described structure monolayer B is circumferential winding layer, and described structure monolayer C is unidirectional layer of cloth, and described structure monolayer D is circumferential winding layer.
In another preference, described structure monolayer A is injection layer, and described structure monolayer B is nothing, and described structure monolayer C is unidirectional layer of cloth, and described structure monolayer D is circumferential winding layer.
In another preference, described structure monolayer A is unidirectional layer of cloth, and described structure monolayer B is circumferential winding layer, and described structure monolayer C is injection layer, and described structure monolayer D is circumferential winding layer.
In another preference, described structure monolayer A is unidirectional layer of cloth, and described structure monolayer B is nothing, and described structure monolayer C is injection layer, and described structure monolayer D is circumferential winding layer.
In another preference, during the construction of described circumferential winding layer, the method using continuous winding, the winding angle being wound around yarn is 40-90 degree, it is preferred that winding angle is 75-90 degree, more preferably, winding angle is 80-90 degree.
In another preference, can arrange additional structure monolayer between each described structure subgrade, described additional structure monolayer is unidirectional layer of cloth, circumferential winding layer, injection layer, surface carpet veneer or a combination thereof.
In another preference; described intermediate structure layer also includes the outermost structural monolayer connected with described external protection; described outermost structural monolayer is injection layer or circumferential winding layer; optionally; can arrange additional structure monolayer between described outermost structural monolayer and described structure subgrade, described additional structure monolayer is unidirectional layer of cloth, circumferential winding layer, injection layer, surface carpet veneer or a combination thereof.
In another preference, in described circumferential winding layer, the winding angle being wound around yarn is 40-90 degree, it is preferred that winding angle is 75-90 degree, more preferably, winding angle is 80-90 degree.
In another preference, the thickness of described structure subgrade is 1.5-5mm；And/or
The quantity of described structure subgrade is 4-26.
In another preference, the thickness of each structure monolayer is 0.05-4mm.
In another preference, described liner functional layer has following one or more feature:
I the fiber areal densities of () described surface carpet veneer is 15-50g/m2, resin content is 80wt%-98wt%, in terms of the gross weight of described surface carpet veneer；
(ii) fiber areal densities of described injection layer is 100-800g/m2, resin content is 65wt%-90wt%, in terms of the gross weight of described injection layer；
(iii) fiber areal densities of described carbon fiber carpet veneer is 10-30g/m2, resin content is 80wt%-99wt%, in terms of the gross weight of described carbon fiber carpet veneer；
(iv) fiber areal densities of described scrim layer is 30-100g/m2, resin content is 50wt%-95wt%, in terms of the gross weight of described scrim layer；And/or
Described intermediate structure layer has following one or more feature:
I the fiber areal densities of () described injection layer is 100g/m2-800g/m2, resin content is 50wt%-80wt%, in terms of the gross weight of described injection layer；
(ii) fiber areal densities of described unidirectional layer of cloth is 200g/m2-600g/m2, resin content is 30wt%-60wt%, in terms of the gross weight of described unidirectional layer of cloth；
(iii) fiber areal densities of described circumferential winding layer is 300g/m2-3000g/m2, resin content is 25wt%-50wt%, in terms of the gross weight of described circumferential winding layer；And/or
Described external protection has following one or more feature:
I the fiber areal densities of () described surface carpet veneer is 20-800g/m2, resin content is 80wt%-98wt%, in terms of the gross weight of described surface carpet veneer；
(ii) fiber areal densities of described scrim layer is 30-100g/m2, resin content is 50wt%-95wt%, in terms of the gross weight of described scrim layer.
A second aspect of the present invention, it is provided that the preparation method of the fiberglass elbow described in first aspect/horizontal segment position Cylinder wall structure, comprises the following steps:
A () makes liner functional layer；
B () lays (making) described intermediate structure layer outside described liner functional layer, and optional
C () is laid (making) described external protection outside described intermediate structure layer and is obtained described fiberglass elbow/horizontal segment position Cylinder wall structure；
Or comprise the following steps:
A () provides liner functional layer, intermediate structure layer, and optional external protection；
B described liner functional layer, intermediate structure layer, and optional external protection are assembled into described fiberglass elbow/horizontal segment position Cylinder wall structure glass by ()；
Preferably, following steps are used to prepare described structure subgrade:
I () provides a basal plane；
(ii) (making) described structure monolayer A is laid in the periphery of described basal plane；
(iii) (making) described structure monolayer B is laid in the periphery of described structure monolayer A；
(iv) (making) described structure monolayer C is laid in the periphery of described structure monolayer B；
V () lays (making) described structure monolayer D in the periphery of described structure monolayer C；
When described structure monolayer B be without time, omit step (c), the periphery of described structure monolayer A lay described structure monolayer C.
In another preference, described basal plane is die surface, and described mould is cylindric mould, column type mould or important actor mould.
A third aspect of the present invention, it is provided that a kind of chimney, including chimney urceolus and chimney internal cylinder, described chimney internal cylinder includes fiberglass elbow as described in relation to the first aspect/horizontal segment position Cylinder wall structure.
In another preference, described chimney comprises 1-4 chimney internal cylinder as mentioned above.
In another preference, described chimney is telescopic or multi-flue chimney.
In another preference, described chimney urceolus is armored concrete urceolus, steel urceolus, brick urceolus or tower-type urceolus.
In another preference, described inner core is suspended in the top of described chimney urceolus.
In another preference, described inner core is suspended in each supporting part of described chimney urceolus.
The fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure, not only there is good hoop mechanical property, and there is good axial mechanical property, take into account simultaneously and meet the various functions requirements such as the erosion of large coal-fired power plant chimney anticorrosion, fire-retardant, antistatic, accumulatingdust, having and be easy to construction and the advantage such as quality control, length in service life.
In should be understood that within the scope of the present invention, can be combined with each other between above-mentioned each technical characteristic and each technical characteristic specifically described in below (eg embodiment) of the present invention, thus constitute new or preferred technical scheme.As space is limited, the most tired at this state.
Accompanying drawing explanation
Fig. 1 is chimney overall structure schematic diagram.
Fig. 2 is the cross-sectional view of the fiber glass reinforced plastic chimney elbow/horizontal segment position Cylinder wall structure of the present invention.
Fig. 3 is the schematic diagram of the fiber glass reinforced plastic chimney elbow/horizontal segment position Cylinder wall structure one preferred liner functional layer of the present invention.
Fig. 4 is the schematic diagram of the fiber glass reinforced plastic chimney elbow/horizontal segment position Cylinder wall structure one preferred structure subgrade of the present invention.
Fig. 5 is the schematic diagram of the fiber glass reinforced plastic chimney elbow of the present invention/horizontal segment position Cylinder wall structure containing a preferred external protection.
Detailed description of the invention
Present inventor is through extensively and in depth studying; develop a kind of fiberglass elbow/horizontal segment position Cylinder wall structure first; including liner functional layer, intermediate structure layer and optional external protection; wherein; from the inside of described elbow/horizontal segment portion structure to outside, described liner functional layer includes: surface carpet veneer-injection layer；Described intermediate structure layer includes that at least two structure subgrade, described structure subgrade include: structure monolayer A-structure monolayer B-structure monolayer C-structure monolayer D, and wherein, structure monolayer A is injection layer or unidirectional layer of cloth；Structure monolayer B is nothing or circumferential winding layer；Structure monolayer C is injection layer or unidirectional layer of cloth；Structure monolayer D is circumferential winding layer；And when structure monolayer A is for injection layer, structure monolayer C is unidirectional layer of cloth；Or structure monolayer A is when being unidirectional layer of cloth, structure monolayer C is injection layer；And the thickness of described intermediate structure layer is t, and 15≤t≤50mm；Described optional external protection includes gel coating resin.The fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure, not only has good hoop mechanical property, and has good axial mechanical property, has and is easy to construction and the advantage such as quality control, length in service life.On this basis, the present invention is completed.
As a example by chimney, elbow/horizontal segment position is described.As shown in Figure 1, chimney 4 can be suspended in the top of urceolus 5 or each support zone, in terms of overall structure, chimney 4 includes strengthening position 6, elbow/horizontal segment position 7 and general place 8, wherein, reinforcement position 6 refers to the position needing to strengthen improving bearing capacity, including level only rolling position 61, suspention position 62；Elbow/horizontal segment position 7 refers to bend part and the horizontal segment position being connected on chimney, it is preferred that bend part is integrated with the horizontal segment position being connected；General place 8 refers to the position on chimney in addition to level only shakes position, suspention position, bend part and horizontal segment position.
The chimney of the present invention, height is 10-400m.It is preferred that the height of described chimney is at 200-350m.In another preference, described chimney height is 50m, 100m, 150m, 200m, 250m, 300m or 350m.
The chimney of the present invention, a diameter of 2-15m.It is preferred that the diameter of described chimney is at 5-12m.In another preference, a diameter of 3m, 4m, 5m, 6m, 7m, 8m, 5.5m, 6.5m, 7.5m, 8.5m, 9m, 9.5m, 10m or 12m of described chimney.
Fiberglass elbow/horizontal segment position Cylinder wall structure
As in figure 2 it is shown, the fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure, including liner functional layer 1, intermediate structure layer 2 and optional external protection 3.
The effect of liner functional layer 1 is anticorrosion and fire-retardant, static conductive, accumulatingdust.
The Main Function of intermediate structure layer 2 is to provide mechanical property.
External protection 3 is to 2 certain protective role of intermediate structure layer.Representational protective effect includes (but being not limited to): uvioresistant, antifouling (cleaning), anticorrosion, antioxidation.Additionally, external protection 3 may also function as certain decoration function.
In the present invention, liner functional layer 1, intermediate structure layer 2 and optional external protection 3 are all mainly to be made up of various different structure monolayers.
The preparation method of fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure, comprises the following steps:
A () makes liner functional layer；
B () lays (making) described intermediate structure layer outside described liner functional layer, and optional
C () is laid (making) described external protection outside described intermediate structure layer and is obtained described fiberglass elbow/horizontal segment position Cylinder wall structure；
Or comprise the following steps:
A () provides liner functional layer, intermediate structure layer, and optional external protection；
B described liner functional layer, intermediate structure layer, and optional external protection are assembled into described fiberglass elbow/horizontal segment position Cylinder wall structure by ().
The fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure, has following one or more feature:
(1) hoop tensile strength is more than 235MPa, and modulus is more than 19.0GPa, and axial tensile strength is more than 110MPa, and modulus is more than 12.5GPa；
(2) hoop bending strength is more than 250MPa, and modulus is more than 18.0GPa, and axial bending intensity is more than 140MPa, and modulus is more than 11.0GPa；
(3) hoop compressive strength is more than 260MPa, and modulus is more than 12.0GPa, and axial compression strength is more than 200MPa, and modulus is more than 9.0GPa.
Structure monolayer
In the present invention, structure monolayer includes spraying layer, unidirectional layer of cloth, circumferential winding layer, surface carpet veneer and scrim layer, carbon fiber carpet veneer and gel coating resin.
In the present invention, injection layer, unidirectional layer of cloth, circumferential winding layer, surface carpet veneer and scrim layer are all made up of fiberglass reinforced plastics (also referred to as fiberglass).Fiberglass is through combination process, a kind of functional material being made by synthetic resin and glass fibre.In the present invention, glass fibre can use commercially available prod, the ECR fiber such as provided and goods by Chongqing Polycomp International Co., Ltd or OWENS CORNING company.Wherein, described injection yarn can use commercially available prod, such as: ECR10k-2400 orP209(2400TEX).Described unidirectional cloth can use commercially available prod, such as: DW(ECR) 430-600/630 orUD(430g/m2).Described winding yarn can use commercially available prod, such as: ECR469L-2400 orSE1200(2400TEX).Described surface felt can use commercially available prod, such as: ST (ECR) 30M-250 or M524-ECR30A(30g/m2).The surface density of described grid cloth is 40-65g/m2, preferably 55-60g/m2, more preferably 60g/m2。
Carbon fiber carpet veneer is made up of carbon fibre reinforced plastic.Carbon fibre reinforced plastic is using carbon fiber and goods thereof as reinforcing material, makees matrix material with synthetic resin, the another kind of high-performance composite materials formed through specific moulding process.Wherein, the surface density of carbon fiber felt can be 15-25g/m2, preferably 17-20g/m2。
The resin more than present invention used in each fibre reinforced plastics includes chemical flame retardant type resin, high temperature resistant type resin.Specifically include epoxy vinyl esters resin, unsaturated polyester resin, epoxy resin.Preferably resin includes: chemical flame retardant type epoxy vinyl esters resin, phenolic epoxy vinyl esters resinoid.Generally, structural resin is resistant at least 80 DEG C, is the most at least resistant to 120 DEG C, is the most at least resistant to 150 DEG C.The resin that present invention preferably uses is chemical flame retardant type epoxy vinyl ester resin DERAKANE MOM510C-350HOI or DSM N. V. production chemical flame retardant type epoxy vinyl ester resin Atlac750.
Gel coating resin is mainly formed from a resin.In another preference, in gel coating resin, resin content is 100wt%, in terms of the gross weight of gel coating resin.In another preference, the film forming matter of described gel coating resin is selected from: epoxy vinyl ester resin, unsaturated polyester resin.In another preference, the film forming matter of described gel coating resin is metaphenylene unsaturated polyester resin.
In another preference, the 50% of each structure monolayer thickness change ＜ average thickness on described fiber glass reinforced plastic chimney hoop, preferably the 20% of thickness change ＜ average thickness.
Preferably employ following methods and prepare each structure monolayer:
Basal plane processes: when basal plane is mould, clears up die surface, application releasing agent, lays plastic sheeting；When basal plane is other structure monolayers, mechanical grinding surface, the floating ash of cleaning, application releasing agent, lay plastic sheeting；
Unidirectional layer of cloth: unidirectional cloth is carried out cutting, is wound into the unidirectional cloth being soaked with resin (being mixed with firming agent) on basal plane by wrapping machine, and winding tension is 10-500MPa, obtains unidirectional layer of cloth after solidification.It is preferred that use intermittent operation technique.
Circumferential winding layer: control tension force 10-500MPa by wrapping machine and be wound on basal plane by the winding yarn being soaked with resin (being mixed with firming agent), solidification forms circumferential winding layer later.In another preference, during the construction of described circumferential winding layer, the method using continuous winding, the winding angle being wound around yarn is 40-90 degree, it is preferred that winding angle is 75-90 degree, more preferably, winding angle is 80-90 degree.
Injection layer: use spraying machine, converged with resin, firming agent by glass fibre, be ejected into together on basal plane at nozzle, solidification obtains spraying layer of sand.
Surface carpet veneer: being wound on basal plane by the surface felt being soaked with resin (being mixed with firming agent) by wrapping machine, winding tension is 10-500MPa, forms surface carpet veneer after solidification.It is preferred that use continuous winding technique.
Scrim layer: being wound on basal plane by the grid cloth being soaked with resin (being mixed with firming agent) by wrapping machine, winding tension is 10-500MPa, solidification forms scrim layer later.It is preferred that use continuous winding technique.
Carbon fiber carpet veneer: being wound on basal plane by the carbon fiber felt being soaked with resin (being mixed with firming agent) by wrapping machine, winding tension is 10-500MPa, forms carbon fiber carpet veneer after solidification.It is preferred that use continuous winding technique.
Gel coating resin: be coated on basal plane by resin gel coat (being mixed with firming agent), solidification forms gel coating resin, it is preferred that use continuous spray technology later.
Liner functional layer
As it is shown on figure 3, from the inside of described fiberglass elbow/horizontal segment position Cylinder wall structure to outside, the structure of described liner functional layer 1 is:
Surface carpet veneer 12-sprays layer 13,
Optional scrim layer (not shown) is may also include outside described injection layer 13.
In another preference, described liner functional layer 1 also includes the carbon fiber carpet veneer 11 of innermost layer, and structure is: carbon fiber carpet veneer 11-surface carpet veneer 12-sprays layer 13.Use carbon fiber carpet veneer 11, can have and lead the effect destaticed.
In another preference, between described carbon fiber carpet veneer and described surface carpet veneer, also there is scrim layer.
In another preference, in described liner functional layer, the fiber areal densities of described carbon fiber carpet veneer is 10-30g/m2, resin content is 80wt%-99wt%, in terms of the gross weight of described carbon fiber carpet veneer.It is preferred that the fiber areal densities of described carbon fiber carpet veneer is 12-25g/m2.It is preferred that the resin content of described carbon fiber carpet veneer is 85wt%-98wt%, in terms of the gross weight of described carbon fiber carpet veneer.In another preference, the thickness of described carbon fiber carpet veneer is 0.1-1mm, it is preferred that thickness is 0.15-0.8mm.
In another preference, in described liner functional layer, the fiber areal densities of described surface carpet veneer is 15-50g/m2, resin content is 80wt%-98wt%, in terms of the gross weight of described surface carpet veneer.It is preferred that the fiber areal densities of described surface carpet veneer is 20-40g/m2.It is preferred that the resin content of described surface carpet veneer is 85wt%-95wt%, in terms of the gross weight of described surface carpet veneer.In another preference, the thickness of described surface carpet veneer is 0.1-1mm, it is preferred that thickness is 0.15-0.5mm.
In another preference, in described liner functional layer, the fiber areal densities of described injection layer is 100-800g/m2, resin content is 65wt%-90wt%, in terms of the gross weight of described injection layer.It is preferred that the fiber areal densities of described injection layer is 200-500g/m2, it is preferred that the resin content of described injection layer is 70wt%-85wt%, in terms of the gross weight of described injection layer.In another preference, the thickness of described injection layer is 0.1-3mm, it is preferred that thickness is 0.5-1.5mm.
In another preference, in described liner functional layer, the fiber areal densities of described scrim layer is 30-100g/m2, resin content is 50wt%-95wt%, in terms of the gross weight of described scrim layer.It is preferred that the fiber areal densities of described scrim layer is 40-70g/m2.It is preferred that the resin content of described scrim layer is 60wt%-90wt%, in terms of the gross weight of described scrim layer.In another preference, the thickness of described scrim layer is 0.1-1.5mm, it is preferred that thickness is 0.15-0.9mm.
In another preference, in described liner functional layer, the 50% of each structure monolayer thickness change ＜ average thickness on described fiber glass reinforced plastic chimney hoop, preferably the 20% of thickness change ＜ average thickness.
When preparing liner functional layer, first carbon fiber felt, surface felt, injection yarn can be laid on basal plane by the way of being wound around or spraying successively, making resin uniformly combine with fiber or fibre by the way of catching up with pressure to go out bubble, coating or spray supplementary resin again, solidification obtains each structure monolayer.
Or, on basal plane, first lay carbon fiber felt layer, then on carbon fiber carpet veneer, carry out spraying layer construction, and on injection layer, optionally lay scrim layer and/or between described carbon fiber carpet veneer and described surface carpet veneer, lay scrim layer.The Specific construction mode of each structure monolayer is as previously mentioned.
Intermediate structure layer
Intermediate structure layer 2 includes at least one structure subgrade 20, and as shown in Figure 4, from the inside of described fiberglass elbow/horizontal segment position Cylinder wall structure to outside, described structure subgrade 20 includes:
Structure monolayer A21-structure monolayer B22-structure monolayer C23-structure monolayer D24,
Wherein, structure monolayer A21 is injection layer or unidirectional layer of cloth；
Structure monolayer B22 is nothing or circumferential winding layer；
Structure monolayer C23 is injection layer or unidirectional layer of cloth；
Structure monolayer D24 is circumferential winding layer；
And when structure monolayer A21 is for injection layer, structure monolayer C23 is unidirectional layer of cloth；Or structure monolayer A21 is when being unidirectional layer of cloth, structure monolayer C23 is injection layer；With
The thickness of described intermediate structure layer is t, and 15≤t≤50mm.
In another preference, the 25% of the thickness change ＜ average thickness of described intermediate structure layer different parts on hoop, it is preferred that the 10% of thickness change ＜ average thickness, more preferably, the 5% of thickness change ＜ average thickness.
In described intermediate structure layer, the quantity of described structure subgrade is 4-26, preferably 6-20.The thickness of described structure subgrade is 1.5-5mm, preferably 2-4mm.In another preference, for same structure subgrade, the 30% of the thickness change ＜ average thickness of its different parts on hoop, it is preferred that thickness changes the 15% of ＜ average thickness.
In the present invention, preferred structure subgrade includes that structure subgrade 1(is designated as S1 in the examples below), structure subgrade 2(be designated as S2), structure subgrade 3(be designated as S3), structure subgrade 4(be designated as S4).
In structure subgrade 1, structure monolayer A is injection layer, and structure monolayer B is circumferential winding layer, and structure monolayer C is unidirectional layer of cloth, and structure monolayer D is circumferential winding layer.
In structure subgrade 2, structure monolayer A is injection layer, and structure monolayer B is nothing, and structure monolayer C is unidirectional layer of cloth, and structure monolayer D is circumferential winding layer.
In structure subgrade 3, structure monolayer A is unidirectional layer of cloth, and structure monolayer B is nothing, and structure monolayer C is injection layer, and structure monolayer D is circumferential winding layer.
In structure subgrade 4, structure monolayer A is unidirectional layer of cloth, and structure monolayer B is circumferential winding layer, and structure monolayer C is injection layer, and structure monolayer D is circumferential winding layer.
Can arrange additional structure monolayer between each described structure subgrade, described additional structure monolayer is unidirectional layer of cloth (being designated as F1 in the examples below), circumferential winding layer (being designated as F2), injection layer (being designated as F3), surface carpet veneer (being designated as F4) or a combination thereof.
Intermediate structure layer also includes the outermost structural monolayer connected with described external protection; described outermost structural monolayer is injection layer (being designated as Y1 in the examples below) or circumferential winding layer (being designated as Y2); and additional structure monolayer can be set between described outermost structural monolayer and described structure subgrade, described additional structure monolayer is unidirectional layer of cloth (being designated as F1 in the examples below), circumferential winding layer (being designated as F2), injection layer (being designated as F3), surface carpet veneer (being designated as F4) or a combination thereof.
In intermediate structure layer, the fiber areal densities of described injection layer is 100-800g/m2, resin content is 50wt%-80wt%, in terms of the gross weight of described injection layer.It is preferred that fiber areal densities is 200-600g/m2, resin content is 55wt%-75wt%, in terms of the gross weight of described injection layer.
In intermediate structure layer, the fiber areal densities of described unidirectional layer of cloth is 200-600g/m2, resin content is 30wt%-60wt%, in terms of the gross weight of described unidirectional layer of cloth.It is preferred that fiber areal densities is 250-500g/m2, resin content is 35wt%-55wt%, in terms of the gross weight of described unidirectional layer of cloth.
In intermediate structure layer, the fiber areal densities of described circumferential winding layer is 300-3000g/m2, resin content is 25wt%-50wt%, in terms of the gross weight of described circumferential winding layer.Preferably fiber areal densities is 400-2000g/m2, resin content is 30wt%-45wt%, in terms of the gross weight of described circumferential winding layer.
In intermediate structure layer, the thickness of each structure monolayer is 0.2-4mm, preferably 0.4-3mm.In another preference, the thickness of described injection layer is 0.2-2mm, preferably 0.5-1.5mm.In another preference, the thickness of described unidirectional layer of cloth is 0.2-1mm, preferably 0.2-0.8mm.In another preference, the thickness of described circumferential winding layer is 0.2-1mm, preferably 0.3-0.8mm.
In another preference, the 50% of each structure monolayer thickness change ＜ average thickness on described fiber glass reinforced plastic chimney hoop, preferably the 20% of thickness change ＜ average thickness.
When preparing structure subgrade, first glass fibre or fiberglass products can be laid on basal plane by the way of injection or winding, making resin uniformly combine with glass fibre or fiberglass products by the way of catching up with pressure to go out bubble, coating or spray supplementary resin again, solidification obtains each structure monolayer.
It addition, following methods can be used to prepare structure subgrade.Its preferred preparation method is described in detail in detail below as a example by structure subgrade 1, comprises the following steps:
Injection layer construction: use spraying machine, converged with resin, firming agent by glass fibre, be ejected into together on basal plane at nozzle, solidification obtains spraying layer；
Circumferential winding layer is constructed: control tension force 10-500MPa by wrapping machine, is wound into by the winding yarn being soaked with resin (being mixed with firming agent) on injection layer, and solidification forms circumferential winding layer later；
Lay unidirectional layer of cloth: being wound on circumferential winding layer by the unidirectional cloth being soaked with resin (being mixed with firming agent) by wrapping machine, winding tension is 10-500MPa, obtains unidirectional layer of cloth after solidification；It is preferred that use intermittent operation technique.
Circumferential winding layer is constructed: controls tension force 10-500MPa by wrapping machine, is wound on unidirectional layer of cloth by the winding yarn being soaked with resin (being mixed with firming agent), and solidification forms circumferential winding layer later.
Preferably employing similar method and prepare structure subgrade 2, structure subgrade 3 and structure subgrade 4, here is omitted.
External protection
As it is shown in figure 5, described external protection 3 includes gel coating resin 31, and optional surface carpet veneer 32 and optional scrim layer 33.
In another preference, described external protection includes gel coating resin and surface carpet veneer, and described surface carpet veneer is between described gel coating resin and described intermediate structure layer.Optional, described external protection also includes scrim layer, and described scrim layer is between described surface carpet veneer and described gel coating resin.
In external protection, gel coating resin is mainly formed from a resin.In another preference, described gel coating resin is made up of metaphenylene unsaturated polyester resin.In another preference, the thickness of described gel coating resin is 0.1-1.5mm, it is preferred that thickness is 0.15-0.6mm.
In external protection, the fiber areal densities of described surface carpet veneer is 20-800g/m2, resin content is 80wt%-98wt%, in terms of the gross weight of described surface carpet veneer.In another preference, the fiber areal densities of described surface carpet veneer is 20-50g/m2.In another preference, the fiber areal densities of described surface carpet veneer is 200-500g/m2.In another preference, the resin content of described surface carpet veneer is 85wt%-95wt%, in terms of the gross weight of described surface carpet veneer.In another preference, the fiber areal densities of described surface carpet veneer is 20-500g/m2.In another preference, the thickness of described surface carpet veneer is 0.1-1.5mm, it is preferred that thickness is 0.15-0.6mm.
In external protection, the fiber areal densities of optional described scrim layer is 30-100g/m2, resin content is 50wt%-95wt%, in terms of the gross weight of described scrim layer.It is preferred that the fiber areal densities of described scrim layer is 50-80g/m2.It is preferred that the resin content of described scrim layer is 60wt%-85wt%, in terms of the gross weight of described scrim layer.
When preparing external protection; the mode that surface felt, optional grid cloth can first pass sequentially through winding is laid on basal plane; resin is made uniformly to combine with above-mentioned fibre by the way of catching up with pressure to go out bubble, coating or spray supplementary resin again; solidification obtains described surface carpet veneer, optional scrim layer, and the resin gel coat of outermost forms described gel coating resin.
Or, on basal plane, first to lay surface carpet veneer, on the carpet veneer of surface, optionally carry out scrim layer construction, last coated with resins gel coat forms gel coating resin.The Specific construction mode of each structure monolayer is as previously mentioned.
The features described above that the present invention mentions, or the feature that embodiment is mentioned can be in any combination.All features disclosed in this case description can be with any composition forms use, each feature disclosed in description, can identical by any offer, impartial or similar purpose alternative characteristics replace.Therefore except there being special instruction, disclosed feature is only the impartial or general example of similar features.
The invention have benefit that:
(1) fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure and there is the chimney of this structure there is decay resistance, good axial mechanical property and the hoop mechanical property of excellence；
(2) fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure and have the chimney integral seamless of this structure, impermeabilisation ability is strong；
(3) fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure and to have the chimney recoverability of this structure strong, local can process as required；
(4) fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure and have the chimney of this structure and cannot degrade, is difficult to aging, and service life is long；
(5) fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure and there is the chimney of this structure be easy to construction and quality control；
(6) fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure and there is the chimney of this structure disclosure satisfy that the various functions requirements such as fire-retardant, antistatic, accumulatingdust；
(7) fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure and there is the chimney of this structure be applicable to large-size thermal power plant.
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate the present invention rather than limit the scope of the present invention.The experimental technique of unreceipted actual conditions in the following example, generally according to normal condition or according to the condition proposed by manufacturer.Unless otherwise indicated, otherwise percentage ratio and number are calculated by weight.
Unless otherwise defined, the same meaning that all specialties used in literary composition are familiar with one skilled in the art with scientific words.Additionally, any method similar or impartial to described content and material all can be applicable in the inventive method.Preferable implementation described in literary composition only presents a demonstration with material and is used.
Universal method
In the examples below, following methods is used to prepare each structure monolayer:
Basal plane processes: when basal plane is mould, clears up die surface, application releasing agent, lays plastic sheeting；When basal plane is structure monolayer, mechanical grinding surface, the floating ash of cleaning, application releasing agent, lay plastic sheeting；
Unidirectional layer of cloth: being wound on basal plane by the unidirectional cloth being soaked with resin (being mixed with firming agent methyl ethyl ketone peroxide) by wrapping machine, winding tension is 100-200MPa, obtains unidirectional layer of cloth after solidification.
Circumferential winding layer: control tension force 100-200MPa by wrapping machine and be wound on basal plane by the winding yarn being soaked with resin (being mixed with methyl ethyl ketone peroxide, cobalt iso-octoate), solidification forms circumferential winding layer later.The winding angle being wound around yarn is 80-90 degree.
Injection layer: use spraying machine, converged with resin (containing cobalt iso-octoate), firming agent methyl ethyl ketone peroxide by glass fibre, be ejected into together on basal plane at nozzle, goes bubble removing, solidification to obtain spraying layer.
Surface carpet veneer: being wound on basal plane by the surface felt being soaked with resin (being mixed with firming agent methyl ethyl ketone peroxide), winding tension is 100-200MPa, forms surface carpet veneer after solidification.
Scrim layer: being wound on basal plane by the grid cloth being soaked with resin (being mixed with firming agent methyl ethyl ketone peroxide), winding tension is 100-200MPa, solidification forms scrim layer later.
Carbon fiber carpet veneer: using continuous winding technique to be wound on basal plane by the carbon fiber felt being soaked with resin (being mixed with firming agent methyl ethyl ketone peroxide) by wrapping machine, winding tension is 100-200MPa, forms carbon fiber carpet veneer after solidification.
The resin used in the most each structure monolayer is chemical flame retardant type epoxy vinyl ester resin DERAKANE MOM510C-350HOI or DSM N. V. production chemical flame retardant type epoxy vinyl ester resin Atlac750.Various glass fibre or fiberglass products are provided by OWENS CORNING company by Chongqing Polycomp International Co., Ltd.
Gel coating resin: be coated on basal plane by metaphenylene unsaturated polyester resin gel coat (being mixed with firming agent methyl ethyl ketone peroxide), solidification forms gel coating resin later.
Additionally, the method using following standard to specify tests various performances." the generals of test methods for properties of fiberreinforced plastics " GB/T1446；" fibre reinforced plastics Erichsen test method " GB/T1447；" Test method for compressive properties of glass fiberreinforced plastics " GB/T1448；" Test method for flexural properties of glass fiberreinforced plastics " GB/T1449；" Test method for interlaminar shear strength of glass fiberreinforced plastics " GB/T1450.1；" Test method for the punchtype of strength of glass fiberreinforced plastics " GB/T1450.2；" fiberglass reinforced thermosetting plastics chemical mediator-resitant property test method " GB/T3857；" Test method of resistivity for fibre reinforced conducting and antistatic plastics " GB/T15738-2008；" fiberglass reinforced plastics combustibility test method " GB/T8924-88；" fiberglass reinforced plastics ageing properties test method " GB/T2573；" loading code for design of building structures " GB50009-2001.
Embodiment 1
The fiberglass elbow of the present embodiment/horizontal segment position, including liner functional layer, intermediate structure layer and external protection, a diameter of 8.5 meters.
Wherein, liner functional layer includes surface carpet veneer and injection layer from inside to outside, and thickness is 1.2mm.
Intermediate structure layer 1,2 additional structure monolayers of 6 structure subgrades from inside to outside and 1 outermost structural monolayer are constituted, and structure is S1-S1-S1-F3-F2-S1-S2-S1-Y1, and gross thickness is 25.2mm.
External protection is gel coating resin, and thickness is 0.25mm.
Embodiment 2
Fiber glass reinforced plastic chimney elbow/horizontal segment the position of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of 7.5 meters.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, surface carpet veneer and injection layer from inside to outside, and thickness is 1.5mm.
Intermediate structure layer structure from inside to outside is S1-S1-F1-S1-S1-F1-F2-S2-F1-F2-S1-S4, and the gross thickness of intermediate structure layer is 25.8mm.
External protection is gel coating resin, and thickness is 0.25mm.
Embodiment 3
The fiberglass elbow of the present embodiment/horizontal segment position, including liner functional layer, intermediate structure layer and external protection, a diameter of 7.7 meters.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, surface carpet veneer, injection layer and scrim layer from inside to outside, and thickness is 1.9mm.
Intermediate structure layer structure from inside to outside is S1-S2-S1-F1-S2-S1-S2-S1-S2-S1-S2-S1-F2-S3-F1-F2-S1-Y2, and the gross thickness of intermediate structure layer is 37.5mm.
External protection is made up of surface carpet veneer and gel coating resin from inside to outside, and gross thickness is 0.5mm.
Embodiment 4
The fiberglass elbow of the present embodiment/horizontal segment position, including liner functional layer, intermediate structure layer and external protection, a diameter of 8.5 meters.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, surface carpet veneer and injection layer from inside to outside, and thickness is 1.46mm.
Intermediate structure Rotating fields is S1-S1-S1-F1-F2-S1-S1-F1-F2-S1-S3-S1-F1-F2-S1-S1-F1-F2-S1-S1-S1-S2-S4-Y1, and gross thickness is 38.8mm.
External protection is made up of surface carpet veneer, scrim layer and gel coating resin from inside to outside, and thickness is 0.66mm.
Embodiment 5
Fiber glass reinforced plastic chimney elbow/horizontal segment the position of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of 7.2 meters.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, scrim layer, surface carpet veneer, injection layer and scrim layer from inside to outside, and thickness is 2.04mm.
Intermediate structure layer structure from inside to outside is S1-S1-S2-F1-F2-S1-S3-S2-F1-F2-S1-S4, and the gross thickness of intermediate structure layer is 24.5mm.
External protection is made up of surface carpet veneer and gel coating resin from inside to outside, and thickness is 0.55mm.
Embodiment 6
The fiberglass elbow of the present embodiment/horizontal segment position, including liner functional layer, intermediate structure layer, a diameter of 6.8 meters.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, surface carpet veneer, injection layer and scrim layer from inside to outside, and thickness is 1.86mm.
Intermediate structure layer structure from inside to outside is S1-S1-S1-F1-F2-S1-S3-S1-F1-F2-S1-S1-S4-Y2, and the gross thickness of intermediate structure layer is 28.5mm.
Embodiment 7
Fiber glass reinforced plastic chimney elbow/horizontal segment the position of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of 7.6 meters.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, scrim layer, surface carpet veneer, injection layer and scrim layer from inside to outside, and thickness is 2.1mm.
Intermediate structure Rotating fields is S1-S1-S2-F1-F2-S1-S1-S1-F4-S3-S1-S2-S4-Y1, and gross thickness is 24.8mm.
External protection is made up of surface carpet veneer, scrim layer and gel coating resin from inside to outside, and thickness is 0.64mm.
Embodiment 8
The fiberglass elbow of the present embodiment/horizontal segment position, including liner functional layer, intermediate structure layer and external protection, a diameter of 9.5 meters.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, surface carpet veneer and injection layer from inside to outside, and thickness is 1.56mm.
Intermediate structure layer structure from inside to outside is S1-S1-S2-F1-F2-S1-S1-S2-F1-S1-F2-S1-S1-F2-S2-S1-S4-S1-S1-Y1, and the gross thickness of intermediate structure layer is 32.5mm.
External protection is made up of surface carpet veneer and gel coating resin from inside to outside, and thickness is 0.5mm.
Embodiment 9
Fiber glass reinforced plastic chimney elbow/horizontal segment the position of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of 9 meters.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, surface carpet veneer, injection layer and scrim layer from inside to outside, and thickness is 1.86mm.
Intermediate structure layer structure from inside to outside is S1-S2-S1-F1-F2-S1-S3-S1-F1-S1-S1-F2-S1-S1-S4-S2, and the gross thickness of intermediate structure layer is 26.5mm.
External protection is made up of surface carpet veneer and gel coating resin from inside to outside, and gross thickness is 0.52mm.
Embodiment 10
After testing, the hoop tensile strength at fiber glass reinforced plastic chimney elbow/horizontal segment position prepared by embodiment 1-9 is more than 235MPa, and modulus is more than 19.0GPa, and axial tensile strength is more than 110MPa, and modulus is more than 12.5GPa；Hoop bending strength is more than 250MPa, and modulus is more than 18.0GPa, and axial bending intensity is more than 140MPa, and modulus is more than 11.0GPa；Hoop compressive strength is more than 260MPa, and modulus is more than 12.0GPa, and axial compression strength is more than 200MPa, and modulus is more than 9.0GPa.
Result shows, the fiberglass elbow of the present invention/horizontal segment position is not only on hoop, and the most all can meet the requirement to large-size thermal power plant chimney mechanical property, may be used for the elbow/horizontal segment position of the chimney of large-size thermal power plant.
Embodiment 11
Structure embodiment 5 prepared is as the elbow/horizontal segment position of the chimney internal cylinder (diameter 7 meters) that height is 240m, chimney internal cylinder is suspended in the top of armored concrete urceolus, certain large-size thermal power plant is applied, to fiberglass elbow/horizontal segment position is functional and mechanical property is investigated.
After 1 year, fiberglass elbow/horizontal segment position integral seamless, the most cracking, seepage, come off, play the problems such as bulging, aging in flakes, integrity is good.And do not find substantially to corrode, good corrosion resistance.Upper huge gravity laod can be born, and on hoop, also meet mechanical property requirements.
Comparative example 1-3
In development process, inventor also makes fiberglass (chimney) elbow/horizontal segment position Cylinder wall structure testing multiple different structure.Fiberglass (chimney) elbow in these comparative examples/horizontal segment position Cylinder wall structure, its liner functional layer is identical with embodiment 1-5 with external protection, and difference essentially consists in structure sheaf, and the composition of representational structure sheaf is as shown in table 1 below.
Wherein S1a: with the S1 of embodiment 5, difference is to omit injection layer.S2a: with the S2 of embodiment 5, difference is to omit injection layer.S3a: with the S3 of embodiment 5, difference is to omit injection layer.S4a: with the S4 of embodiment 5, difference is to omit injection layer.
S1b: with the S1 of embodiment 1, difference is to omit unidirectional layer of cloth.S2b: with the S2 of embodiment 1, difference is to omit unidirectional layer of cloth.
S1c: with the S1 of embodiment 1, difference is that being wound around yarn winding angle is 20 degree.F2c: with the F2 of embodiment 1, difference is that being wound around yarn winding angle is 20 degree.
The intermediate structure layer comparison to structure and propertY of table 1 fiberglass (chimney) elbow/horizontal segment position Cylinder wall structure
Result
Table 2 standards of grading
Use the standard of table 2, the performance of the fiberglass elbow preparing embodiment 1-9 and comparative example 1-3/horizontal segment position Cylinder wall structure is evaluated, result shows, compared with fiberglass elbow prepared by comparative example 1-3/horizontal segment position Cylinder wall structure, the fiberglass elbow of the present invention/horizontal segment position Cylinder wall structure has the manufacturability of excellence, it is prone to construction, the defect being visible by naked eyes, even structure is fine and close, particularly axially and hoop excellent in mechanical performance, meet the large-size thermal power plant requirement to chimney, go for large-size thermal power plant.
The all documents mentioned in the present invention are incorporated as reference the most in this application, are individually recited as with reference to like that just as each document.In addition, it is to be understood that after the above-mentioned teachings having read the present invention, the present invention can be made various changes or modifications by those skilled in the art, these equivalent form of values fall within the application appended claims limited range equally.
Claims (17)
1. fiberglass elbow/horizontal segment position Cylinder wall structure, it is characterised in that described fiberglass elbow/
Horizontal segment position Cylinder wall structure includes liner functional layer and intermediate structure layer, and wherein, described intermediate structure layer includes
4-16 structure subgrade, from the inside of described fiberglass elbow/horizontal segment position Cylinder wall structure to outside, described
Structure subgrade includes:
Structure monolayer A-structure monolayer B-structure monolayer C-structure monolayer D,
Wherein, structure monolayer A is injection layer or unidirectional layer of cloth；
Structure monolayer B is nothing or circumferential winding layer；
Structure monolayer C is injection layer or unidirectional layer of cloth；
Structure monolayer D is circumferential winding layer；
And when structure monolayer A is for injection layer, structure monolayer C is unidirectional layer of cloth；Or structure monolayer A is
During unidirectional layer of cloth, structure monolayer C is injection layer；And the thickness of described intermediate structure layer is t, and 15≤t≤
50mm。
2. fiberglass elbow/horizontal segment position Cylinder wall structure as claimed in claim 1, it is characterised in that institute
State fiberglass elbow/horizontal segment position Cylinder wall structure and also include external protection.
3. fiberglass elbow/horizontal segment position Cylinder wall structure as claimed in claim 2, it is characterised in that institute
State liner functional layer to include: surface carpet veneer-injection layer.
4. fiberglass elbow/horizontal segment position Cylinder wall structure as claimed in claim 3, it is characterised in that
Described liner functional layer also includes the carbon fiber carpet veneer of innermost layer；And/or
Scrim layer is also included outside the injection layer of described liner functional layer.
5. fiberglass elbow/horizontal segment position Cylinder wall structure as claimed in claim 2, it is characterised in that institute
State external protection and include gel coating resin.
6. fiberglass elbow/horizontal segment position Cylinder wall structure as claimed in claim 5, it is characterised in that institute
State external protection and also include that surface carpet veneer and/or scrim layer, described surface carpet veneer and/or scrim layer are arranged on institute
State between intermediate structure layer and described gel coating resin.
7. fiberglass elbow/horizontal segment position Cylinder wall structure as claimed in claim 1, it is characterised in that
Arranging additional structure monolayer between each described structure subgrade, described additional structure monolayer is unidirectional layer of cloth, hoop winding
Layer, injection layer, surface carpet veneer or a combination thereof.
8. fiberglass elbow/horizontal segment position Cylinder wall structure as claimed in claim 2, it is characterised in that institute
Stating the outermost structural monolayer that intermediate structure layer also includes connecting with described external protection, described outermost structural monolayer is spray
Penetrate layer or circumferential winding layer.
9. fiberglass elbow/horizontal segment position Cylinder wall structure as claimed in claim 8, it is characterised in that institute
Stating and arrange additional structure monolayer between outermost structural monolayer and described structure subgrade, described additional structure monolayer is unidirectional
Layer of cloth, circumferential winding layer, injection layer, surface carpet veneer or a combination thereof.
10. the fiberglass elbow as described in any one of claim 1-9/horizontal segment position Cylinder wall structure, it is special
Levying and be, in described circumferential winding layer, the winding angle being wound around yarn is 40-90 degree.
11. fiberglass elbow/horizontal segment position Cylinder wall structures as claimed in claim 10, it is characterised in that
In described circumferential winding layer, the winding angle being wound around yarn is 75-90 degree.
12. fiberglass elbow/horizontal segment position Cylinder wall structures as claimed in claim 10, it is characterised in that
In described circumferential winding layer, the winding angle being wound around yarn is 80-90 degree.
13. fiberglass elbow/horizontal segment position Cylinder wall structures as claimed in claim 1, it is characterised in that
The thickness of described structure subgrade is 1.5-5mm；And/or
The quantity of described structure subgrade is 6-20.
14. fiberglass elbow/horizontal segment position Cylinder wall structures as claimed in claim 4, it is characterised in that
Described liner functional layer has following one or more feature:
I the fiber areal densities of () described surface carpet veneer is 15-50g/m2, resin content is 80wt%-98wt%,
In terms of the gross weight of described surface carpet veneer；
(ii) fiber areal densities of described injection layer is 100-800g/m2, resin content is 65wt%-90wt%,
In terms of the gross weight of described injection layer；
(iii) fiber areal densities of described carbon fiber carpet veneer is 10-30g/m2, resin content is 80wt%-99wt%,
In terms of the gross weight of described carbon fiber carpet veneer；
(iv) fiber areal densities of described scrim layer is 30-100g/m2, resin content is 50wt%-95wt%,
In terms of the gross weight of described scrim layer；And/or
Described intermediate structure layer has following one or more feature:
I the fiber areal densities of () described injection layer is 100g/m2-800g/m2, resin content is
50wt%-80wt%, in terms of the gross weight of described injection layer；
(ii) fiber areal densities of described unidirectional layer of cloth is 200g/m2-600g/m2, resin content is
30wt%-60wt%, in terms of the gross weight of described unidirectional layer of cloth；
(iii) fiber areal densities of described circumferential winding layer is 300g/m2-3000g/m2, resin content is
25wt%-50wt%, in terms of the gross weight of described circumferential winding layer；And/or
Described external protection includes gel coating resin, surface carpet veneer and scrim layer, described surface carpet veneer and scrim layer
It is arranged between described intermediate structure layer and described gel coating resin, and described external protection has with next or many
Individual feature:
I the fiber areal densities of () described surface carpet veneer is 20-800g/m2, resin content is 80wt%-98wt%,
In terms of the gross weight of described surface carpet veneer；
(ii) fiber areal densities of described scrim layer is 30-100g/m2, resin content is 50wt%-95wt%,
In terms of the gross weight of described scrim layer.
15. fiberglass elbow/horizontal segment position the Cylinder wall structures as described in claim 4-6, any one of 8-12
Preparation method, it is characterised in that said method comprising the steps of:
A () makes liner functional layer；
B () lays described intermediate structure layer outside described liner functional layer, and
C () is laid described external protection outside described intermediate structure layer and is obtained described fiberglass elbow/horizontal segment portion
Position Cylinder wall structure；
Or comprise the following steps:
A () provides liner functional layer, intermediate structure layer, and external protection；
(b) described liner functional layer, intermediate structure layer, and external protection are assembled into described fiberglass elbow/
Horizontal segment position Cylinder wall structure；
When described structure monolayer B be without time, omit step (c), lay in the periphery of described structure monolayer A described
Structure monolayer C.
16. preparation methoies as claimed in claim 15, it is characterised in that use following steps to prepare described knot
Structure subgrade:
I () provides a basal plane；
(ii) described structure monolayer A is laid in the periphery of described basal plane；
(iii) described structure monolayer B is laid in the periphery of described structure monolayer A；
(iv) described structure monolayer C is laid in the periphery of described structure monolayer B；
V () lays described structure monolayer D in the periphery of described structure monolayer C.
17. 1 kinds of chimneys, including chimney urceolus and chimney internal cylinder, it is characterised in that described chimney internal cylinder includes
Fiberglass elbow as described in any one of claim 1-14/horizontal segment position Cylinder wall structure.
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| CN201310520484.8A CN103526981B (en) | 2013-10-29 | 2013-10-29 | Fiberglass elbow/horizontal segment position Cylinder wall structure and there is the chimney of this structure |
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| CN203099216U (en) * | 2013-01-25 | 2013-07-31 | 合肥海银杆塔有限公司 | Composite pipe and flue and chimney comprising same |
| CN203583978U (en) * | 2013-10-29 | 2014-05-07 | 中国电力工程顾问集团华东电力设计院 | Cylinder wall structure of glass fiber reinforced plastics (GFRP) and chimney with cylinder wall structure |
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| RU2200222C2 (en) * | 2001-06-05 | 2003-03-10 | Цыплаков Олег Георгиевич | Gas outlet shaft of chimney |
| CN201355045Y (en) * | 2008-12-26 | 2009-12-02 | 北京国电华北电力工程有限公司 | FRP flue of natural ventilation and smoke exhaust cooling tower |
| CN201381670Y (en) * | 2009-04-08 | 2010-01-13 | 北京国电华北电力工程有限公司 | Chimney adopting sectional glass reinforced plastic inner cylinder for exhausting low-temperature flue gas after wet desulfurization |
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