CN103541579B - A kind of low thickness glass steel stack - Google Patents
A kind of low thickness glass steel stack Download PDFInfo
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- CN103541579B CN103541579B CN201310524511.9A CN201310524511A CN103541579B CN 103541579 B CN103541579 B CN 103541579B CN 201310524511 A CN201310524511 A CN 201310524511A CN 103541579 B CN103541579 B CN 103541579B
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Abstract
The present invention relates to a kind of low thickness glass steel stack; chimney wall includes liner functional layer, intermediate structure layer and optional external protection; intermediate structure layer includes several structure subgrade; from the inside of fiber glass reinforced plastic chimney to outside; the structure of described structure subgrade consists of: 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 t of intermediate structure layer is in the range of 8≤t ＜ 18mm.The fiber glass reinforced plastic chimney of the present invention, 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 low thickness glass steel stack.
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.Fiberglass (Glass Fiber Reinforced
Plastics is also referred to as fiberglass reinforced plastics, and internationally recognized dummy suffix notation is GFRP or FRP) it is fiber
One in reinforced plastics, by synthetic resin and glass fibre through combination process, a kind of function being made
Type composite, 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, to power
Learning performance requirement the highest, need emphasis is the hoop performance of FRP product, is not important to axial property
Ask.In recent years, owing to FRP product can solve the etching problem of chimney, engineer starts to consider FRP
Make chimney to use.
Large thermal power plant chimney is vertically arranged, and height, often beyond 200m, is suspended in concrete urceolus
Top or each support zone, huge gravity laod transmits vertically, and this loading characteristic requires FRP chimney
Mechanical property with axially for main ring to for auxiliary.Therefore, to FRP be used for the chimney of large thermal power plant,
Functional Requirement is met (such as corrosion-resistant, static conductive, fire-retardant, uvioresistant, anti-old except needing FRP chimney
Change, accumulatingdust) outward, in addition it is also necessary to meet mechanical property (axially and the stretching of hoop, bend, shear, press
Contracting performance etc.) requirement.But China does not still have the case history of large-size thermal power plant FRP chimney so far.
Therefore, still need and develop a kind of FRP chimney in this area, it is possible to is applicable to large-size thermal power plant, can not only
Meet functional requirement, also can meet the demand of mechanical property.
Summary of the invention
It is an object of the invention to provide one to meet Functional Requirement and can meet again mechanical property demand
Low thickness F RP chimney, can apply at large thermal power plant.
A first aspect of the present invention, it is provided that a kind of fiber glass reinforced plastic chimney, described fiber glass reinforced plastic chimney barrel includes liner merit
Ergosphere, intermediate structure layer and optional external protection, described intermediate structure layer includes at least one structure subgrade, from
The inside of described fiber glass reinforced plastic chimney is to outside, and 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；With
The thickness of described intermediate structure layer is t, and 8≤t ＜ 18mm.
Herein, " optional " refer to have (can exist) maybe can not have (can not).
Described fiber glass reinforced plastic chimney barrel include liner functional layer, intermediate structure layer and optional external protection refer to as described in glass
Glass steel stack barrel can have external protection, maybe can not have external protection.
Herein, thickness refers to randomly select 25 meansigma methodss measuring the thickness that point records, such as, middle junction
The thickness t of structure layer is to randomly select 25 on intermediate structure layer to measure point, calculates the flat of 25 thickness recorded
Average, obtains the thickness t of intermediate structure layer.
In another preference, in described circumferential winding layer, the winding angle being wound around yarn is 40-90 degree, preferably
Ground, winding angle is 75-90 degree, and more preferably, winding angle is 80-90 degree.
In another preference, described structure monolayer A is injection layer.
In another preference, described structure monolayer A is injection layer, and described structure monolayer B is that hoop is wound around
Layer, 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, 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.
In another preference, described structure monolayer A is unidirectional layer of cloth, and described structure monolayer B is that hoop is wound around
Layer, 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, described
Structure monolayer C is injection layer, and described structure monolayer D is circumferential winding layer.
In another preference, the quantity of described structure subgrade is 2-12.
In another preference, additional structure monolayer can be set 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 list connected with described external protection
Layer, described outermost structural monolayer is injection layer or circumferential winding layer.
In another preference, between described outermost structural monolayer and described structure subgrade, additional structure can be set
Monolayer, described additional structure monolayer is unidirectional layer of cloth, circumferential winding layer, injection layer, surface carpet veneer or its group
Close.
In another preference, the thickness of described structure subgrade is 1.5-5mm；And/or
The thickness of each structure monolayer is 0.2-4mm.
In another preference, the fiber areal densities of described injection layer is 100g/m2-800g/m2, resin contains
Amount is 50wt%-80wt%, in terms of the gross weight of described injection layer；And/or
The 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；And/or
The 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.
A second aspect of the present invention, it is provided that the preparation method of the fiber glass reinforced plastic chimney described in first aspect, including following
Step:
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 fiber glass reinforced plastic chimney；
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 glass by ()
Steel stack；
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), lay in the periphery of described structure monolayer A described
Structure monolayer C.
In another preference, described basal plane is die surface, and described mould is cylindric mould, cylinder pattern
Tool 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, in described chimney
Cylinder is 1-4 fiber glass reinforced plastic chimney as described in relation to the first aspect.
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
Posture urceolus.
In another preference, described fiber glass reinforced plastic chimney is suspended in the top of described chimney urceolus.
In another preference, described fiber glass reinforced plastic chimney is suspended in each support zone of described chimney urceolus.
The fiber glass reinforced plastic chimney of the present invention, not only has good hoop mechanical property, and has good axial force
Learn performance, take into account simultaneously and meet large coal-fired power plant chimney anticorrosion erosion, fire-retardant, antistatic, accumulatingdust etc. are many
Functional requirement, has and is 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, above-mentioned each technical characteristic of the present invention and below (as implemented
Example) in can be combined with each other between each technical characteristic of specifically describing, thus constitute new or preferred skill
Art scheme.As space is limited, the most tired at this state.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the fiber glass reinforced plastic chimney barrel of the present invention.
Fig. 2 is the schematic diagram of fiber glass reinforced plastic chimney one preferred liner functional layer of the present invention.
Fig. 3 is the schematic diagram of fiber glass reinforced plastic chimney one preferred structure subgrade of the present invention.
Fig. 4 is the schematic diagram of the fiber glass reinforced plastic chimney of the present invention containing a preferred external protection.
Detailed description of the invention
Present inventor, through extensively and in depth studying, develops a kind of novel low thickness glass first
Glass steel stack, including at least one have following structure composition structure subgrade: 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
For 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 unidirectional cloth
During layer, structure monolayer C is injection layer, and the thickness t of described intermediate structure layer is in the range of 8≤t ＜ 18mm.
The low thickness glass steel stack of the present invention, not only has good hoop mechanical property, and has good axle
Mechanical property, takes into account simultaneously and meets the erosion of large coal-fired power plant chimney anticorrosion, fire-retardant, antistatic, accumulatingdust etc.
Various functions requirement, has and is easy to construction and the advantage such as quality control, length in service life.On this basis, complete
The present invention.
Fiber glass reinforced plastic chimney
As it is shown in figure 1, the fiber glass reinforced plastic chimney of the present invention, including liner functional layer 1, intermediate structure layer 2 with appoint
The external protection 3 of choosing.
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 include (but
It is not limited to): uvioresistant, antifouling (cleaning), anticorrosion, antioxidation.Additionally, external protection 3
May also function as certain decoration function.
The fiber glass reinforced plastic chimney of the present invention, height is 10-400m.It is preferred that the height of described fiber glass reinforced plastic chimney
At 200-350m.In another preference, described fiber glass reinforced plastic chimney height is 50m, 100m, 150m, 200m,
250m, 300m or 350m.
The fiber glass reinforced plastic chimney of the present invention, a diameter of 2-15m.It is preferred that the diameter of described fiber glass reinforced plastic chimney exists
6-12m.In another preference, a diameter of 3m of described fiber glass reinforced plastic chimney, 4m, 5m, 6m, 7m, 8m,
5.5m, 6.5m, 7.5m, 8.5m, 9m, 9.5m, 10m or 12m.
In the present invention, liner functional layer 1, intermediate structure layer 2 and optional external protection 3 are all main by various
Different structure monolayers is constituted.
The preparation method of fiber glass reinforced plastic chimney of the present invention, comprises the following steps:
A () provides liner functional layer；
B () lays described intermediate structure layer in described liner functional layer, and optional
C () is laid described external protection on described intermediate structure layer and is obtained described fiber glass reinforced plastic chimney；
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 glass by ()
Steel stack.
The fiber glass reinforced plastic chimney of the present invention, 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, 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, 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, modulus is more than 9.0GPa.
Structure monolayer
In the present invention, structure monolayer include spray 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
It is made up of fiberglass reinforced plastics (also referred to as fiberglass).Fiberglass is by synthetic resin and glass fibre
Through combination process, a kind of functional material being made.In the present invention, glass fibre can use
Commercially available prod, the ECR such as provided by Chongqing Polycomp International Co., Ltd or OWENS CORNING company is fine
Dimension and goods.Wherein, described injection yarn can use commercially available prod, such as: ECR10k-2400 or
P209(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 with carbon fiber and system thereof
Product, as reinforcing material, make matrix material with synthetic resin, the another kind formed through specific moulding process
High-performance composite materials.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, corrosion 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 resin.Generally, structural resin is resistant at least 80 DEG C, is the most at least resistant to 120 DEG C, the most extremely
It is resistant to 150 DEG C less.The resin that present invention preferably uses is chemical flame retardant type epoxy vinyl ester resin
DERAKANE MOM510C-350HOI or DSM N. V. produce chemical flame retardant type epoxy vinyl ester
Resin A tlac750.
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 that metaphenylene is unsaturated
Polyester resin.
In another preference, the thickness change ＜ on described fiber glass reinforced plastic chimney hoop is the thickest for each structure monolayer
The 50% of degree, 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, will be soaked with resin by wrapping machine (or manual) and (be mixed with
Firming agent) unidirectional cloth be wound on basal plane, 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 will be soaked with resin (being mixed with firming agent)
Winding yarn be wound on basal plane, solidification after forms circumferential winding layer.In another preference, described hoop twines
During winding layer construction, the method using continuous winding, the winding angle being wound around yarn is 40-90 degree, it is preferred that be wound around
Angle is 75-90 degree, and more preferably, winding angle is 80-90 degree.
Injection layer: use spraying machine, glass fibre is converged with resin, firming agent at nozzle, sprays together
Being mapped on basal plane, solidification obtains spraying layer.
Surface carpet veneer: the surface felt being soaked with resin (being mixed with firming agent) is twined by wrapping machine (or manual)
On basal plane, winding tension is 10-500MPa, forms surface carpet veneer after solidification.It is preferred that use continuously
Winding process.
Scrim layer: the grid cloth being soaked with resin (being mixed with firming agent) is twined by wrapping machine (or manual)
On basal plane, winding tension is 10-500MPa, and solidification forms scrim layer later.It is preferred that use continuously
Winding process.
Carbon fiber carpet veneer: the carbon fiber of resin (being mixed with firming agent) will be soaked with by wrapping machine (or manual)
Felt is wound on basal plane, and winding tension is 10-500MPa, forms carbon fiber carpet veneer after solidification.It is preferred that adopt
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 later.
Liner functional layer
As in figure 2 it is shown, from the inside of described fiber glass reinforced plastic chimney 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, structure
For:
Carbon fiber carpet veneer 11-surface carpet veneer 12-sprays layer 13.
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 of described carbon fiber carpet veneer contains
Amount is 85wt%-98wt%, in terms of the gross weight of described carbon fiber carpet veneer.In another preference, described carbon
The thickness of fibre felt layer 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 15-50
g/m2, resin content is 80wt%-98wt%, in terms of the gross weight of described surface carpet veneer.It is preferred that it is described
The fiber areal densities of 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, described surface carpet veneer
Thickness 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
For 70wt%-85wt%, in terms of the gross weight of described injection layer.In another preference, described injection layer
Thickness be 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
For 60wt%-90wt%, in terms of the gross weight of described scrim layer.In another preference, described scrim layer
Thickness be 0.1-1.5mm, it is preferred that thickness is 0.15-0.9mm.
In another preference, in described liner functional layer, each structure monolayer is at described fiber glass reinforced plastic chimney hoop
On thickness change ＜ average thickness 50%, preferably thickness change ＜ average thickness 20%.
When preparing liner functional layer, can first by carbon fiber felt, surface felt, injection yarn by be wound around or injection
Mode is laid on basal plane successively, then makes resin by the way of catching up with pressure to go out bubble, coating or spray supplementary resin
Uniformly combining with fiber or fibre, solidification obtains each structure monolayer.
Or, on basal plane, first lay carbon fiber felt layer, then carry out spraying layer construction on carbon fiber carpet veneer,
And optionally lay on injection layer scrim layer and/or described carbon fiber carpet veneer and described surface carpet veneer it
Between 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, as it is shown on figure 3, from the inside of described chimney extremely
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 list
When layer A21 is unidirectional layer of cloth, structure monolayer C23 is injection layer；With
The thickness of described intermediate structure layer is t, and 8≤t ＜ 18mm or 18≤t ＜ 20mm.
In another preference, the thickness change ＜ of described intermediate structure layer different parts on hoop is the thickest
The 25% of degree, it is preferred that the 10% of thickness change ＜ average thickness, more preferably, thickness change ＜ average thickness
5%。
In described intermediate structure layer, the quantity of described structure subgrade is 2-12, preferably 3-10.
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 becomes
Change 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(is 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, 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 single
To layer of cloth, 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 spray
Penetrating layer, 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, structure list
Layer 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 cloth
Layer (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
For spraying layer (being designated as Y1 in the examples below) or circumferential winding layer (being designated as Y2), and described outermost knot
Can arrange additional structure monolayer between structure 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), table
Face 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 contains
Amount 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.Separately
In one preference, the thickness of described injection layer is 0.2-2mm, preferably 0.5-1.5mm.Excellent at another
Selecting in example, the thickness of described unidirectional layer of cloth is 0.2-1mm, preferably 0.2-0.8mm.Excellent at another
Selecting in example, the thickness of described circumferential winding layer is 0.2-1mm, preferably 0.3-0.8mm.
In another preference, the thickness change ＜ on described fiber glass reinforced plastic chimney hoop is the thickest for each structure monolayer
The 50% of degree, preferably the 20% of thickness change ＜ average thickness.
When preparing structure subgrade, can first by glass fibre or fiberglass products by the way of injection or winding
It is laid on basal plane, then makes resin and glass fibers by the way of catching up with pressure to go out bubble, coating or spray supplementary resin
Dimension or fiberglass products uniformly combine, and solidification obtains each structure monolayer.
It addition, following methods can be used to prepare structure subgrade.As a example by structure subgrade 1 in detail it is described in detail below preferred
Preparation method, comprises the following steps:
Injection layer construction: use spraying machine, glass fibre is converged with resin, firming agent at nozzle, one
Rising and be ejected on basal plane, solidification obtains spraying layer；
Circumferential winding layer is constructed: controls tension force 10-500MPa by wrapping machine, will be soaked with resin and (be mixed with solidification
Agent) winding yarn be wound into injection layer on, solidification after forms circumferential winding layer；
Lay unidirectional layer of cloth: by wrapping machine, the unidirectional cloth being soaked with resin (being mixed with firming agent) is wound into ring
On winding layer, winding tension is 10-500MPa, obtains unidirectional layer of cloth after solidification；It is preferred that employing batch (-type)
Operating procedure.
Circumferential winding layer is constructed: controls tension force 10-500MPa by wrapping machine, will be soaked with resin and (be mixed with solidification
Agent) winding yarn be wound on unidirectional layer of cloth, solidification after forms circumferential winding layer.
Preferably employ similar method and prepare structure subgrade 2, structure subgrade 3 and structure subgrade 4, the most superfluous
State.
External protection
As shown in Figure 4, described external protection 3 includes gel coating resin 31, and optional surface carpet veneer 32 is with optional
Scrim layer 33.
In another preference, described external protection includes gel coating resin and surface carpet veneer, and described surface carpet veneer is in institute
State between gel coating resin and described intermediate structure layer.Optional, described external protection also includes scrim layer, described net
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 by
Benzene-type unsaturated polyester resin is made.In another preference, the thickness of described gel coating resin is 0.1-1.5mm, relatively
Goodly, 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, described surface carpet veneer
Fiber areal densities be 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%, with institute
State the gross weight meter of 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
For 0.15-0.6mm.
In external protection, the fiber areal densities of optional described scrim layer is 30-100g/m2, resin content
For 50wt%-95wt%, in terms of the gross weight of described scrim layer.It is preferred that the fibrous face of described scrim layer
Density is 50-80g/m2.It is preferred that the resin content of described scrim layer is 60wt%-85wt%, with described
The gross weight meter of 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, then by the way of catching up with pressure to go out bubble, coating or spray supplementary resin, make resin and above-mentioned fiber system
Product uniformly combine, and solidification obtains described surface carpet veneer, optional scrim layer, the resin gel coat shape of outermost
Become described gel coating resin.
Or, on basal plane, first lay surface carpet veneer, on the carpet veneer of surface, optionally carry out scrim layer construction,
Rear 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.This case description
Disclosed all features can be with any composition forms use, and each feature disclosed in description can
Replace with the alternative characteristics of purpose identical, impartial or similar by any offer.Therefore except there being special instruction,
Disclosed feature is only the impartial or general example of similar features.
The invention have benefit that:
(1) fiber glass reinforced plastic chimney of the present invention have excellence decay resistance, good axial mechanical property and
Hoop mechanical property；
(2) the fiber glass reinforced plastic chimney integral seamless of the present invention, impermeabilisation ability is strong；
(3) the fiber glass reinforced plastic chimney recoverability of the present invention is strong, and local can process as required；
(4) fiber glass reinforced plastic chimney of the present invention cannot be degraded, and is difficult to aging, and service life is long；
(5) fiber glass reinforced plastic chimney of the present invention is easy to construction and quality control；
(6) fiber glass reinforced plastic chimney of the present invention disclosure satisfy that the various functions requirements such as fire-retardant, antistatic, accumulatingdust；
(7) fiber glass reinforced plastic chimney of the present invention is 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 only used for
The bright present invention rather than restriction the scope of the present invention.The experiment side of unreceipted actual conditions in the following example
Method, generally according to normal condition or according to the condition proposed by manufacturer.Unless otherwise indicated, otherwise hundred
Proportion by subtraction and number are calculated by weight.
Unless otherwise defined, all specialties used in literary composition are ripe with one skilled in the art institute with scientific words
The same meaning known.Additionally, any method similar or impartial to described content and material all can be applicable to
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: the unidirectional cloth of resin (being mixed with firming agent methyl ethyl ketone peroxide) will be soaked with by wrapping machine
Being wound on basal plane, winding tension is 100-200MPa, obtains unidirectional layer of cloth after solidification.
Circumferential winding layer: resin will be soaked with by wrapping machine control tension force 100-200MPa and (be mixed with peroxidating first
Ethyl ketone, cobalt iso-octoate) winding yarn be wound on basal plane, solidification after forms circumferential winding layer.It is wound around twining of yarn
It is 80-90 degree around angle.
Injection layer: use spraying machine, by glass fibre and resin (containing cobalt iso-octoate), firming agent peroxidating
Butanone converges at nozzle, is ejected into together on basal plane, goes bubble removing, solidification to obtain spraying layer.
Surface carpet veneer: the surface felt being soaked with resin (being mixed with firming agent methyl ethyl ketone peroxide) is wound into basal plane
On, winding tension is 100-200MPa, forms surface carpet veneer after solidification.
Scrim layer: the grid cloth being soaked with resin (being mixed with firming agent methyl ethyl ketone peroxide) is wound into basal plane
On, winding tension is 100-200MPa, and solidification forms scrim layer later.
Carbon fiber carpet veneer: use continuous winding technique will be soaked with resin by wrapping machine and (be mixed with firming agent peroxide
Change butanone) carbon fiber felt be wound on basal plane, winding tension is 100-200MPa, solidification after forms carbon
Fibre felt layer.
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. produce chemical flame retardant type epoxy vinyl ester
Resin A tlac750.Various glass fibre or fiberglass products by Chongqing Polycomp International Co., Ltd by
OWENS CORNING company provides.
Gel coating resin: metaphenylene unsaturated polyester resin gel coat (being mixed with firming agent methyl ethyl ketone peroxide) is coated
On basal plane, solidification forms gel coating resin later.
Additionally, the method using following standard to specify tests various performances." fibre reinforced plastics performance test
Method general provisions " GB/T1446；" fibre reinforced plastics Erichsen test method " GB/T1447；" glass
Glass fibre reinforced plastics compression performance test method " GB/T1448；" fiberglass reinforced plastics bendability
Energy test method " GB/T1449；" Test method for interlaminar shear strength of glass fiberreinforced plastics " GB/T
1450.1；" Test method for the punchtype of strength of glass fiberreinforced plastics " GB/T1450.2；" glass
Fiber reinforced thermoset plastics chemical mediator-resitant property test method " GB/T3857；" conduction and antistatic are fine
Dimension reinforced plastics resistivity test method " 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 fiber glass reinforced plastic chimney of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of
7.2 rice.
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 4 structure subgrades and 1 outermost structural monolayer from inside to outside
Constituting, structure is S1-S1-F1-F2-S1-S1-Y1, and gross thickness is 14.2mm.
External protection is gel coating resin, and thickness is 0.25mm.
Embodiment 2
The fiber glass reinforced plastic chimney of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of
7.2 rice.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, surface carpet veneer and injection layer from inside to outside, thickness
For 1.5mm.
Intermediate structure layer structure from inside to outside is S1-S1-F1-S1-S2-F1-F2-S1-S4, intermediate structure layer total
Thickness is 16.5mm.
External protection is gel coating resin, and thickness is 0.25mm.
Embodiment 3
The fiber glass reinforced plastic chimney of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of
7.2 rice.
Wherein, liner functional layer is from inside to outside by carbon fiber carpet veneer, surface carpet veneer, injection layer and scrim layer
Constituting, thickness is 1.9mm.
Intermediate structure layer structure from inside to outside is S1-S2-S1-F1-F2-S3-F1-F2-S1-Y2, intermediate structure layer
Gross thickness is 17.5mm.
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 fiber glass reinforced plastic chimney of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of
8.5 rice.
Wherein, liner functional layer is made up of carbon fiber carpet veneer, surface carpet veneer and injection layer from inside to outside, thickness
For 1.46mm.
Intermediate structure Rotating fields is S1-S1-S1-F1-F2-S1-S1-S1-S2-S4-Y1, and gross thickness is 17.8mm.
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
The fiber glass reinforced plastic chimney of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of
7.2 rice.
Wherein, liner functional layer is from inside to outside by carbon fiber carpet veneer, scrim layer, surface carpet veneer, injection layer
Constituting with scrim layer, thickness is 2.04mm.
Intermediate structure layer structure from inside to outside is S1-S2-F1-F2-S1-S3-S2-F1-F2-S1-S4, intermediate structure
The gross thickness of layer is 17.5mm.
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 fiber glass reinforced plastic chimney of the present embodiment, including liner functional layer, intermediate structure layer, a diameter of 8 meters.
Wherein, liner functional layer is from inside to outside by carbon fiber carpet veneer, surface carpet veneer, injection layer and scrim layer
Constituting, 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-Y2, in
Between the gross thickness of structure sheaf be 16.8mm.
Embodiment 7
The fiber glass reinforced plastic chimney of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of
6.5 rice.
Wherein, liner functional layer is from inside to outside by carbon fiber carpet veneer, scrim layer, surface carpet veneer, injection layer
Constituting with scrim layer, thickness is 2.1mm.
Intermediate structure Rotating fields is S1-S1-F2-S1-S1-Y2, and gross thickness is 12.8mm.
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 fiber glass reinforced plastic chimney 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 and injection layer from inside to outside, thickness
For 1.56mm.
Intermediate structure layer structure from inside to outside is S1-S1-S2-F1-F2-S1-S1-S4-F1-S1-F2-S1-S1-Y1,
The gross thickness of intermediate structure layer is 17.2mm.
External protection is made up of surface carpet veneer and gel coating resin from inside to outside, and thickness is 0.5mm.
Embodiment 9
The fiber glass reinforced plastic chimney of the present embodiment, including liner functional layer, intermediate structure layer and external protection, a diameter of
7 meters.
Wherein, liner functional layer is from inside to outside by carbon fiber carpet veneer, surface carpet veneer, injection layer and scrim layer
Constituting, thickness is 1.86mm.
Intermediate structure layer structure from inside to outside is S1-S2-S1-F1-F2-S1-S3-S1-S2, intermediate structure layer total
Thickness is 13.5mm.
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 of fiber glass reinforced plastic chimney prepared by embodiment 1-9 is more than 235MPa, modulus
More than 19.0GPa, axial tensile strength is more than 110MPa, and modulus is more than 12.5GPa；Hoop bending strength
More than 250MPa, 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, mould
Amount is more than 9.0GPa.
Result shows, the fiber glass reinforced plastic chimney of the present invention is not only on hoop, and the most all can meet
Requirement to large-size thermal power plant chimney mechanical property, may be used for the chimney of large-size thermal power plant.
Embodiment 11
Height is 240m the fiber glass reinforced plastic chimney (diameter 7.2 meters) embodiment 5 prepared is as chimney
Inner core, is suspended in the top of armored concrete urceolus, as chimney to its function in certain large-size thermal power plant
Property and mechanical property are investigated.
After 1 year, fiber glass reinforced plastic chimney integral seamless, the most cracking, seepage, come off, play drum, old in flakes
The problems such as change, integrity is good.And do not find substantially to corrode, good corrosion resistance.Can bear upper huge
Gravity laod, also meet hoop mechanical property requirements.
Comparative example 1-3
In development process, inventor also makes the fiber glass reinforced plastic chimney testing multiple different structure.These are right
Fiber glass reinforced plastic chimney in ratio, its liner functional layer is identical with embodiment 7 with external protection, difference
Essentially consisting in intermediate structure layer, the composition of representational intermediate structure layer is as shown in table 1 below.
Wherein S1a: with the S1 of embodiment 7, difference is to omit injection layer.S1b: with embodiment 7
S1, difference is to omit unidirectional layer of cloth.S1c: with the S1 of embodiment 7, difference is to be wound around yarn
Winding angle is 20 degree.
The intermediate structure layer comparison to structure and propertY result of the fiber glass reinforced plastic chimney of table 1 comparative example and embodiment
Table 2 standards of grading
Use the standard of table 2, the performance of fiber glass reinforced plastic chimney prepared by embodiment 1-9 and comparative example 1-3 is entered
Row is evaluated, and result shows, compared with fiber glass reinforced plastic chimney prepared by comparative example 1-3, and the low thickness glass of the present invention
Glass steel stack has the manufacturability of excellence, it is easy to construction, the defect being visible by naked eyes, and even structure is fine and close,
Particularly axially and hoop excellent in mechanical performance, the large-size thermal power plant requirement to chimney, Ke Yishi are met
For large-size thermal power plant.
The all documents mentioned in the present invention are incorporated as reference the most in this application, just as each document
It is individually recited as with reference to like that.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, and these equivalent form of values fall within this Shen equally
Please appended claims limited range.
Claims (13)
1. a fiber glass reinforced plastic chimney, it is characterised in that described fiber glass reinforced plastic chimney barrel include liner functional layer, in
Between structure sheaf and optional external protection, described intermediate structure layer includes at least one structure subgrade, from described glass
The inside of steel stack is to outside, and 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；With
The thickness of described intermediate structure layer is t, and 8≤t ＜ 18mm；
The quantity of wherein said structure subgrade is 2-12.
2. fiber glass reinforced plastic chimney as claimed in claim 1, it is characterised in that in described circumferential winding layer, be wound around
The winding angle of yarn is 40-90 degree.
3. fiber glass reinforced plastic chimney as claimed in claim 1, it is characterised in that in described circumferential winding layer, be wound around
The winding angle of yarn is 75-90 degree.
4. fiber glass reinforced plastic chimney as claimed in claim 1, it is characterised in that in described circumferential winding layer, be wound around
The winding angle of yarn is 80-90 degree.
5. fiber glass reinforced plastic chimney as claimed in claim 1, it is characterised in that the quantity of described structure subgrade is
3-10.
6. fiber glass reinforced plastic chimney as claimed in claim 5, it is characterised in that set between each described structure subgrade
Putting additional structure monolayer, described additional structure monolayer is unidirectional layer of cloth, circumferential winding layer, injection layer, surface felt
Layer or a combination thereof.
7. fiber glass reinforced plastic chimney as claimed in claim 1, it is characterised in that described intermediate structure layer also include with
The outermost structural monolayer that described external protection connects, described outermost structural monolayer is injection layer or circumferential winding layer.
8. fiber glass reinforced plastic chimney as claimed in claim 7, it is characterised in that described outermost structural monolayer is with described
Arranging additional structure monolayer between structure subgrade, described additional structure monolayer is unidirectional layer of cloth, circumferential winding layer, spray
Penetrate layer, surface carpet veneer or a combination thereof.
9. fiber glass reinforced plastic chimney as claimed in claim 1, it is characterised in that the thickness of described structure subgrade is
1.5-5mm；And/or
The thickness of each structure monolayer is 0.2-4mm.
10. the fiber glass reinforced plastic chimney as described in any one of claim 1-9, it is characterised in that described injection layer
Fiber areal densities be 100g/m2-800g/m2, resin content is 50wt%-80wt%, with described injection layer
Gross weight meter；And/or
The 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；And/or
The 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.
The preparation method of 11. fiber glass reinforced plastic chimneys as described in any one of claim 1-10, it is characterised in that institute
The method of stating comprises the following steps:
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 fiber glass reinforced plastic chimney；
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 glass by ()
Steel stack；
When described structure monolayer B be without time, omit step (c), lay in the periphery of described structure monolayer A described
Structure monolayer C.
The preparation method of 12. fiber glass reinforced plastic chimneys as claimed in claim 11, it is characterised in that use following step
Rapid prepare described 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.
13. 1 kinds of chimneys, including chimney urceolus and chimney internal cylinder, it is characterised in that described chimney internal cylinder is 1-4
Individual fiber glass reinforced plastic chimney as described in any one of claim 1-10.
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| CN201310524511.9A CN103541579B (en) | 2013-10-29 | 2013-10-29 | A kind of low thickness glass steel stack |
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|---|---|---|---|
| CN201310524511.9A CN103541579B (en) | 2013-10-29 | 2013-10-29 | A kind of low thickness glass steel stack |
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| CN104763210B (en) * | 2015-04-14 | 2017-04-19 | 清华大学 | Chimney constructed by novel corrosion-resistant materials and construction method thereof and sleeve chimney |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09279903A (en) * | 1996-04-17 | 1997-10-28 | Shimizu Corp | Chimney |
| JPH09302996A (en) * | 1996-05-13 | 1997-11-25 | Hitachi Zosen Corp | Smokestack and method for constructing the same |
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203514931U (en) * | 2013-10-29 | 2014-04-02 | 中国电力工程顾问集团华东电力设计院 | Small-thickness glass fiber reinforced plastic chimney and chimney |
-
2013
- 2013-10-29 CN CN201310524511.9A patent/CN103541579B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09279903A (en) * | 1996-04-17 | 1997-10-28 | Shimizu Corp | Chimney |
| JPH09302996A (en) * | 1996-05-13 | 1997-11-25 | Hitachi Zosen Corp | Smokestack and method for constructing the same |
| 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 |
| 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 |
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|---|---|
| CN103541579A (en) | 2014-01-29 |
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