CN203856264U - Glass fiber reinforced plastic anti-corrosive inner liner structure for inner wall of chimney - Google Patents
Glass fiber reinforced plastic anti-corrosive inner liner structure for inner wall of chimney Download PDFInfo
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- CN203856264U CN203856264U CN201420040839.3U CN201420040839U CN203856264U CN 203856264 U CN203856264 U CN 203856264U CN 201420040839 U CN201420040839 U CN 201420040839U CN 203856264 U CN203856264 U CN 203856264U
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- fiber reinforced
- glass fiber
- reinforced plastic
- chimney
- corrosive
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Abstract
The utility model relates to a glass fiber reinforced plastic anti-corrosive inner liner structure for an inner wall of a chimney. The glass fiber reinforced plastic anti-corrosive inner liner structure comprises a glass fiber reinforced plastic sleeve and an elastic anti-corrosive puddle layer, wherein the glass fiber reinforced plastic sleeve is formed by splicing a plurality of glass fiber reinforced plastic arc-shaped plates layer by layer, and the glass fiber reinforced plastic sleeve is bonded on the inner wall of the chimney through the elastic anti-corrosive puddle layer. The glass fiber reinforced plastic anti-corrosive inner liner structure for the inner wall of the chimney has the advantages that the installation is convenient, the cost is low, in addition, the sealing performance is good, and the maintenance is easy. The structural weight is born by a chimney substrate, the glass fiber reinforced plastic arc-shaped plates are spliced into a whole, and falling is difficult to occur. Compared with an integral glass fiber reinforced plastic inner tube, the glass fiber reinforced plastic anti-corrosive inner liner structure has the advantages that the thickness of the glass fiber reinforced plastic arc-shaped plates can be reduced, the manufacturing cost of the anti-corrosive structure is greatly reduced, and the cost is only about 1/3 of that of the integral glass fiber reinforced plastics.
Description
Technical field
The utility model relates to chimney, more particularly, relates to a kind of glass fiber reinforced plastic anti-corrosion lining structure of inner wall of stack.
Background technology
Smoke moisture after the wet chimney desulfurization of thermal power plant is large, and the condensation acid solution that dewfall forms is strong to the corrosivity of structural meterials.Untreated clean SO
3, SO
2, the medium such as HCl, HF all, below the dewpoint temperature of itself, easily forms condensation acid solution, causes the acidity of wet flue gas to increase, the corrosivity of smoke evacuation drum surface is strengthened; Condensation acid solution pH value is 1.0～3.0, all very serious to iron and steel (comprising common stainless steel) and concrete corrosion.
In the time that wet desulphurization device (FGD) puts into operation, wet flue gas temperature is (while being provided with GG, being 70～80 DEG C, is 40～50 DEG C while thering is no GGH) 40～80 DEG C of left and right, in the time that FGD stops transport, the former flue gas of smoke stack emission, generally, between 120 DEG C～150 DEG C, can reach 180 DEG C when startup and fault in short-term.Flue gas is in service very large on the impact of chimney anticorrosion material at the alternation of such alternation of wetting and drying and temperature.
The flow velocity of flue gas in chimney is generally tens metre per second (m/s)s, even reaches 30m/s, and the flue gas that 24 hours continuous high speeds are mobile and the particle carrying thereof have caused erosion corrosion to the impact of smoke evacuation cylinder material.
In power plant desulfurization chimney, modal corrosive gas is the sulfur oxide of not Ex-all and the sulfur trioxide remaining.Sulfur dioxide is met water and is transformed into sulfurous acid, and sulfur trioxide is met water and generated sulfuric acid.Hydrate in sulfuric acid and concrete, by the ion-exchange of acid or salt, generates easily molten calcium salt, aluminium salt, molysite and silica gel etc.Alumina in loam brick, also can generate easily molten salt with sulfuric acid.Salt in flue gas is also the medium can not be ignored, and after a lot of lyotropic salts can infiltrate brick and the concrete inner moisture absorption, recrystallization expands and destroys material structure.
At present, known fiber glass reinforced plastic chimney anticorrosion structure is a kind of LARGE DIAMETER FRP inner core being arranged in major diameter chimney, is arranged in large diameter concrete chimney or in steelframe chimney, is is longitudinally connected and composed by the LARGE DIAMETER FRP cylindrical shell unit of some sections.
Use fiber glass reinforced plastic chimney unit the most widely to use canoe one-body molded, another kind of molding mode is that some blocks of large-area glass fiber reinforced plastic arc plates overlap mutually, and lap-joint is locked with bolt, then is installed on chimney barrel.
Glass fiber reinforced plastic acid-proof antiseptic property excellence, and can effectively prevent the seepage of wet desulphurization waste gas medium, steel matrix or the cement matrix of protection chimney, extend application life of chimney.But the LARGE DIAMETER FRP inner core that entirety is wound around need to bear own wt with self structure, and thickness is large, with high costs, be difficult for transport and install, there is after leak source not easy-maintaining.The glass reinforced plastic inner cylinder of overlapping mode splicing is similar with it.
Utility model content
The technical problems to be solved in the utility model is, a kind of glass fiber reinforced plastic anti-corrosion lining structure of inner wall of stack is provided, easy for installation, cost is low, and good airproof performance, easily safeguards.
The utility model solves the technical scheme that its technical problem adopts: the glass fiber reinforced plastic anti-corrosion lining structure of constructing a kind of inner wall of stack, comprise glass fiber reinforced plastic sleeve and elastic anti-corrosion clay layer, described glass fiber reinforced plastic sleeve is successively spliced by multiple pieces of glass steel arc, and described glass fiber reinforced plastic sleeve is bonded in inner wall of stack by described elastic anti-corrosion clay layer.
In such scheme, the area of every glass fiber reinforced plastic arc is 0.8～1.6m
2.
In such scheme, the thickness of every glass fiber reinforced plastic arc is 2～5mm.
In such scheme, described elastic anti-corrosion clay layer adopts hydroxy silicon oil to add white carbon, carbon black and barium sulfate inorganic filler and makes.
In such scheme, multiple pieces of glass steel arc connects by " work " font glass fiber reinforced plastic.
The glass fiber reinforced plastic anti-corrosion lining structure of implementing inner wall of stack of the present utility model, has following beneficial effect:
1, the utility model can reduce costs in maintenance Corrosion Protection of Fiber Reinforced Plastics structure effectiveness;
2, the utility model splicing construction makes glass reinforced plastic inner cylinder self-locking, has good sealing, prevents corrosive medium seepage;
3, the utility model utilizes the elastic force of elastic anti-corrosion clay, the thermal expansion stroke that heat absorbing glass steel and the chimney coefficient of expansion bring, the swelling internal stress producing can cushion temperature alternating time;
4, the utility model glass fiber reinforced plastic arc shape plate is anticorrosion and anti-wear performance is good, and can protect elastic anti-corrosion clay not frayed, and because glass fiber reinforced plastic arc plate area is less, if occur, leak source detachably keeps in repair;
5, the utility model construction weight is born by chimney matrix, and glass fiber reinforced plastic arc is spliced into an entirety, is difficult to occur coming off, and can reduce the thickness of glass fiber reinforced plastic arc plate, has greatly reduced the cost of anticorrosion structure, and cost is only 1/3 left and right of whole glass steel.
6, the utility model installation period short, the duration shortens more than 1/3 than the anticorrosion mounting means of whole glass steel and foam glass brick.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the glass fiber reinforced plastic anti-corrosion lining structure of the utility model inner wall of stack;
Fig. 2 is the longitudinal sectional view of Fig. 1;
Fig. 3 is the transverse sectional view of Fig. 1.
Detailed description of the invention
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast accompanying drawing and describe detailed description of the invention of the present utility model in detail.
As shown in Figure 1-Figure 3, the glass fiber reinforced plastic anti-corrosion lining structure of inner wall of stack 1 of the present utility model comprises glass fiber reinforced plastic sleeve and elastic anti-corrosion clay layer 3.
Glass fiber reinforced plastic arc 2 adopts high-temperature-resistant flame-retardant resin, anticorrosion good with anti-wear performance, and can protect clay not frayed.The area of glass fiber reinforced plastic arc 2 is little, and the area of every glass fiber reinforced plastic arc 2 is 0.8～1.6m
2if occur that leak source detachably keeps in repair.Glass fiber reinforced plastic sleeve is bonded in inner wall of stack 1 by elastic anti-corrosion clay layer 3, utilizes the elastic force of elastic anti-corrosion clay, the thermal expansion stroke that heat absorbing glass steel and the chimney coefficient of expansion bring, the swelling internal stress producing can cushion temperature alternating time.Glass fiber reinforced plastic sleeve is successively spliced by multiple pieces of glass steel arc 2, and glass fiber reinforced plastic arc 2 splices by vertical " work " shaped connecting piece 4 circumferential, longitudinally adjacent two-layerly connect by camber line I shape connector 5.
The utility model construction weight is born by chimney matrix, and glass fiber reinforced plastic arc 2 is spliced into an entirety, is difficult to occur coming off, and can reduce thickness to the 2～5mm of glass fiber reinforced plastic arc plate.Greatly having reduced the cost of anticorrosion structure, is only the half left and right of whole glass steel.
In the present embodiment, elastic anti-corrosion clay layer 3 adopts hydroxy silicon oil to add white carbon, carbon black and barium sulfate inorganic filler and makes.
The detailed description of the invention of the glass fiber reinforced plastic anti-corrosion lining construction method of the utility model inner wall of stack is as follows:
With 200 meters high, the tapered chimney that base diameter is 7 meters is that example is carried out anticorrosive construction.
Take following construction sequence:
(1) inwall of chimney is repaired and surfacing
For ensureing construction quality, need to repair and surfacing the matrix of inner wall of stack.
Check whether the inner concrete substrate of chimney has crack, comes off, if any weathering, become flexible, come off or the position of cave in, larger part is filled by cement mortar, and smaller part is repaired with clay, and plaster trowel builds that real to strike off rear planeness be≤2-3mm ∕ m
2.After reparation completes, carry out surfacing, processing mode is polishing and water flushing.
Surface requirements: clean, must not occur cracking, dusting, shelling, voids and pits etc. without oil, should more than 80% be dried to inner wall surface before next procedure construction, the moisture content in the 20mm degree of depth is less than 6%.
Drainage measure: in work progress, to just water conservancy diversion of waste liquid, make waste liquid be connected to from dust stratification platform bottom the mortar ditch that exports to ground chimney.
(2) carry out heatproof clay blade coating at the inwall of chimney
Construction method:
1) carry out heatproof clay blade coating, the yin, yang angle part of inner lining surface spreads to arc transition shape with trowel, and one deck is smeared equably with trowel in surface, more than thickness is generally 1.8mm.
2) while smearing, should sequentially carry out continuously from top to bottom by certain direction.
3) smearing method: roller coating construction, comes on coated article body by rotary broom that rollback is moving brushes.(2) preparation of material:
1) elastic anti-corrosion clay is opened after bucket, should stir, and checks the working viscosity of elastic anti-corrosion clay simultaneously, and adjusts according to actual conditions, until reach the working viscosity of regulation.The addition of thinner must not exceed 20% of a use amount.
2) elastic anti-corrosion clay layer adopts hydroxy silicon oil interpolation white carbon, carbon black and barium sulfate inorganic filler to make, and its parameter is as follows:
Elastic anti-corrosion clay surface drying time: about 1.5-2.5 hour, temperature 0-40 DEG C.
Temperature alternating scope-30 DEG C～250 DEG C
Adhesion strength (steel) >=1.5MPa
Adhesion strength (brick) >=1.2MPa
Tensile elongation >=150%
3) reinforced plastic plate shape is mated with inner wall of stack, big or small 1500mm × 800mm, thickness 2.5mm, gel content 50%～65%.
(3) frp lining construction
Constructing operation is according to vertical equipment Ceramic construction technology constructing operation and examination.
Cleaning matrix surface dust → splicing glass fiber reinforced plastic arc plate → be fixed on is on matrix → pour into elastic anti-corrosion clay → jointing, edge sealing → quality examination → final acceptance of construction.
1) before construction, require matrix surface clean dry, without floating dust, without greasy dirt.
2) reinforced plastic plate is carried out to quality inspection, require surperficial imporosity, even thickness, without unfilled corner, fall rib, crack and obvious concavo-convex phenomenon.
3) for the first row of examination of main position, then cut by size.Glass fiber reinforced plastic arc and " work " word connector are spliced into integral loop, and lower end seals with rubber strip, and upper end, with the position of block rubber fixed arch plate and matrix, makes the inner core of splicing parallel with matrix everywhere, and spacing is 2～3mm.
4) elastic anti-corrosion clay and its curing compound accelerator are prepared according to a certain percentage, by special diluting agent adjustment elastic anti-corrosion clay viscosity.
5) elastic anti-corrosion clay is poured in the gap between arc plate and matrix.
6) after elastic anti-corrosion clay gel, remove rubber, wait for that elastic anti-corrosion clay thoroughly solidifies.
7) successively install from bottom to up, use between layers " work " word connector to be fixedly connected with.
8), while construction, should start the up order of stickers lining from frame support bracket and carry out.Lining brick height is unsuitable too high continuously, should adapt with the state of cure of cementing agent, in order to avoid dislocation or mobile occurs lower floor's vitrified brick.
9) after elastic anti-corrosion clay solidifies, elastic anti-corrosion clay jointing edge sealing for inner core seam crossing.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not departing from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.
Claims (4)
1. the glass fiber reinforced plastic anti-corrosion lining structure of an inner wall of stack, it is characterized in that, comprise glass fiber reinforced plastic sleeve and elastic anti-corrosion clay layer, described glass fiber reinforced plastic sleeve is successively spliced by multiple pieces of glass steel arc, and described glass fiber reinforced plastic sleeve is bonded in inner wall of stack by described elastic anti-corrosion clay layer.
2. the glass fiber reinforced plastic anti-corrosion lining structure of inner wall of stack according to claim 1, is characterized in that, the area of every glass fiber reinforced plastic arc is 0.8～1.6m
2.
3. the glass fiber reinforced plastic anti-corrosion lining structure of inner wall of stack according to claim 1, is characterized in that, the thickness of every glass fiber reinforced plastic arc is 2～5mm.
4. the glass fiber reinforced plastic anti-corrosion lining structure of inner wall of stack according to claim 1, is characterized in that, multiple pieces of glass steel arc connects by " work " font glass fiber reinforced plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040839.3U CN203856264U (en) | 2014-01-22 | 2014-01-22 | Glass fiber reinforced plastic anti-corrosive inner liner structure for inner wall of chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040839.3U CN203856264U (en) | 2014-01-22 | 2014-01-22 | Glass fiber reinforced plastic anti-corrosive inner liner structure for inner wall of chimney |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856264U true CN203856264U (en) | 2014-10-01 |
Family
ID=51606126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420040839.3U Expired - Fee Related CN203856264U (en) | 2014-01-22 | 2014-01-22 | Glass fiber reinforced plastic anti-corrosive inner liner structure for inner wall of chimney |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856264U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674310A (en) * | 2016-01-18 | 2016-06-15 | 杭州顺豪橡胶工程有限公司 | New method for corrosion resistant transformation of flue gas desulfurization concrete chimney of coal-fired power plant |
| CN106895427A (en) * | 2017-04-01 | 2017-06-27 | 中机国能电力工程有限公司 | A kind of desulfuration chimney fiberglass paster clad steel plate inner cylinder |
| CN114135889A (en) * | 2021-11-01 | 2022-03-04 | 南京旭合环保设备有限公司 | Anti-corrosion chimney lining structure and method |
-
2014
- 2014-01-22 CN CN201420040839.3U patent/CN203856264U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674310A (en) * | 2016-01-18 | 2016-06-15 | 杭州顺豪橡胶工程有限公司 | New method for corrosion resistant transformation of flue gas desulfurization concrete chimney of coal-fired power plant |
| CN106895427A (en) * | 2017-04-01 | 2017-06-27 | 中机国能电力工程有限公司 | A kind of desulfuration chimney fiberglass paster clad steel plate inner cylinder |
| CN114135889A (en) * | 2021-11-01 | 2022-03-04 | 南京旭合环保设备有限公司 | Anti-corrosion chimney lining structure and method |
| CN114135889B (en) * | 2021-11-01 | 2024-04-09 | 南京旭合环保设备有限公司 | Anti-corrosion chimney lining structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20170122 |