CN207299001U - A kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder - Google Patents
A kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder Download PDFInfo
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- CN207299001U CN207299001U CN201720341303.9U CN201720341303U CN207299001U CN 207299001 U CN207299001 U CN 207299001U CN 201720341303 U CN201720341303 U CN 201720341303U CN 207299001 U CN207299001 U CN 207299001U
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- inner cylinder
- resistant coating
- patch
- erosion resistant
- fiberglass
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Abstract
The utility model discloses a kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder, the clad steel plate includes insulating layer, structure sheaf, composite bed, main erosion resistant coating, confining bed；Insulating layer is provided with the outside of the structure sheaf, the inner surface of structure sheaf is laid with composite bed, and main erosion resistant coating is laid on the surface of composite bed, and the outer surface of main erosion resistant coating is laid with confining bed；The thickness of the main erosion resistant coating is for 2~5mm；The thickness of the confining bed is 05 2mm.The utility model has the advantages that：Rational in infrastructure, each layer has played the excellent performance of material therefor, respectively takes the chief, makes the best use of everything, and avoids waste of material；It is highly practical, main erosion resistant coating has the antiseptic property more outstanding than traditional glass steel inner cylinder, and due to being additionally arranged one of confining bed on the outside of main erosion resistant coating so that fiberglass patch clad steel plate inner cylinder anticorrosion structure forms self-locking, leakproofness is more excellent, effectively can prevent corrosive medium from leaking.
Description
Technical field
A kind of anti-corrosive apparatus is the utility model is related to, more particularly, in a kind of desulfuration chimney fiberglass patch clad steel plate
Cylinder.
Background technology
In order to control SO2、SO3Concentration of emission and discharge capacity, thermal power plant use flue gas desulfurization technique mostly, and wet method lime
Stone washing method is countries in the world today using most and most ripe technique, and the leading technology of domestic thermal power plant desulfurization.
For wet desulfurizing process when not setting GGH heater heating systems, flue-gas temperature is generally at 40~50 DEG C.Due to through wet
Method desulfurization, smoke moisture increase, temperature reduce, and flue gas easily condenses in the inner wall of chimney, such as three oxidations remaining in flue gas
After sulphur dissolving, the very strong dilution heat of sulfuric acid of corrosivity is formed, also some hydrogen chloride solutions, nitrate solutions and hydrogen fluoride is molten
Liquid.
Therefore, desulfuration chimney more commonly without about 130 DEG C of desulfuration chimney flue-gas temperature for, its operating condition have significantly not
Together：
1st, smoke moisture is big, and the Korrosionsmedium contained is in the case where flue gas is in the double action of normal pressure and humidity, in chimney
The material internal of side structure low density is subject to corrode very much, influences structure durability.
2nd, low concentration dilute sulfuric acid solution is more stronger than the acid liquid corrosion of high concentration.
3rd, the temperature of acid solution is especially strong to the corrosivity of structural material at 40-80 DEG C.By taking steel as an example, at 40-80 DEG C
Etch ratio about 3-8 times is higher by other temperature.
It follows that discharge desulfurization fume chimney brake specific exhaust emission commonly non-desulfurization fume chimney to Anti-corrosion design requirement
It is much higher, therefore when designing desulfuration chimney, the anticorrosive measure of inner wall of stack should further be strengthened.
Domestic common desulfuration chimney anti-corrosion is that titanium plate is formed titanium steel with 235 steel plate of common Q by explosive welding to answer at present
Plywood, resists the corrosion of acid ＆ alkali liquid using the passivating film of titanium Surface Creation, but the of a relatively high 2.6 ten thousand/t of cost, commissure
Easily by fast erosion.
Utility model content
The utility model is directed to the deficiency of existing product, and provides in a kind of desulfuration chimney fiberglass patch clad steel plate
Cylinder.Technical problem to be solved in the utility model is：
A kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder of the utility model, the clad steel plate include insulation
Layer, structure sheaf, composite bed, main erosion resistant coating, confining bed；Insulating layer, the inner surface of structure sheaf are provided with the outside of the structure sheaf
Composite bed is laid with, main erosion resistant coating is laid on the surface of composite bed, and the outer surface of main erosion resistant coating is laid with confining bed；The master prevents
The thickness of rotten layer is for 2~5mm；The thickness of the confining bed is 05-2mm.
Further, the structure sheaf is made of Q235 or Q345 steel plates.
Further, the composite bed is made of the silicon-based modifying elastic cement of intercrossed network type.
Further, the main erosion resistant coating is anti-flaming glass fiber reinforced plastics patch, and thickness is 3~4mm, using high-temperature-resistant flame-retardant resin
It is combined with glass fibre.
Further, the confining bed is the fiberglass of 1mm thickness, and the surface resin content of fiberglass is more than 90%.
The beneficial effects of the utility model are：1st, rational in infrastructure, each layer has played the excellent performance of material therefor, respectively takes
The chief, makes the best use of everything, and avoids waste of material；2nd, highly practical, main erosion resistant coating has more outstanding than traditional glass steel inner cylinder
Antiseptic property, and due to being additionally arranged one of confining bed on the outside of main erosion resistant coating so that fiberglass patch clad steel plate inner cylinder is prevented
Rotten structure forms self-locking, and leakproofness is more excellent, effectively can prevent corrosive medium from leaking；3rd, new material application, not easily to fall off,
Structure design is more accurate, and fiberglass patch is relatively thin, therefore can be not involved in inner tube structure calculating, effectively prevent in traditional glass steel
The shortcomings that barrel structure design is difficult so that structure design is more accurate.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：Insulating layer 1, structure sheaf 2, composite bed 3, main erosion resistant coating 4, confining bed 5.
Embodiment
With reference to embodiment, the utility model will be further described.
A kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder of the utility model mainly by insulating layer 1, structure sheaf 2,
Composite bed 3, main erosion resistant coating 4, confining bed 5 form.
The clad steel plate includes insulating layer 1, structure sheaf 2, composite bed 3, main erosion resistant coating 4, confining bed 5；The structure sheaf 2
Outside is provided with insulating layer 1, and the inner surface of structure sheaf 2 is laid with composite bed 3, and main erosion resistant coating 4 is laid on the surface of composite bed 3,
The outer surface of main erosion resistant coating 4 is laid with confining bed 5；The thickness of the main erosion resistant coating 4 is for 2~5mm；The confining bed 5
Thickness is 05-2mm.
Insulating layer 1 is first layer-thermal insulation layer, can be cancelled in the case where chimney is in wet desulphurization accidental conditions.
The structure sheaf 2 is made of Q235 or Q345 steel plates.Structure sheaf has intensity height, material property using steel construction
The advantage such as isotropism and stabilization, processing install convenient, material reproducible utilization, and price of steel product is relatively low, is most excellent
Structural material.Since inner tube structure weight is born by structure of steel product layer, held relative to traditional glass steel inner cylinder by fiberglass body
Carry, fiberglass patch thickness only needs to meet requirement for anticorrosion, greatly reduces the cost of erosion resistant coating.
The composite bed 3 is made of the silicon-based modifying elastic cement of intercrossed network type.Clay is silicon-based modifying poly- using IPN-e
Three kinds of compound addition white carbon, carbon black and barium sulfate inorganic fillers are mixed.Elastic cement is pasted onto on inner wall of stack, is glued
After patch, clay is higher than sheet of glass fiber reinforced plastics at gap, is stitched with scraper compacting clay, realizes the effect of edge sealing.
The main erosion resistant coating 4 is anti-flaming glass fiber reinforced plastics patch, and thickness is 3~4mm, using high-temperature-resistant flame-retardant resin and glass
Fiber composite forms.Anti-flaming glass fiber reinforced plastics patch not only there is the antiseptic property more outstanding than traditional glass steel inner cylinder to be better than titanium steel
Plate, and belong to anti-flammability, the inflammable fatal defects of traditional glass steel are overcome, also with extraordinary wearability, Ke Yibao
The clay for protecting composite bed is not frayed.
The confining bed 5 is the fiberglass of 1mm thickness, and the surface resin content of fiberglass is more than 90%.Confining bed is in master
The construction of main erosion resistant coating 4 complete and by examination after, to its surface sand-blasting, cleaning, the glass of one layer of 1mm thickness is then pasted on its surface
Glass steel so that the anticorrosion structure of fiberglass patch clad steel plate inner cylinder forms self-locking, and leakproofness is more excellent, can effectively prevent
Corrosive medium leaks；Meanwhile swelling internal stress caused by temperature alternating can be buffered.
A kind of main erosion resistant coating 4 of desulfuration chimney fiberglass patch clad steel plate inner cylinder of the utility model is using customizable resistance
Combustion type fiberglass patch；
The flexible glass steel patch that main erosion resistant coating 4 uses, its corrosion resistance are shown as：15%H2SO4,70 DEG C, 168h, by force
Degree slightly improves, and appearance is without significant change.Experiment proves that it has antiseptic property outstanding as traditional whole glass steel inner cylinder
(being better than titanium steel plate).
Unlike needing homogeneous tube segmentation winding at the construction field (site) from traditional whole glass steel inner cylinder, the utility model uses
Fiberglass patch can be produced in batches in factory, be transported to scene by chimney size customized production fritter anti-flaming glass fiber reinforced plastics arc plate
It is connected along inner wall of stack successively lining cutting afterwards, product quality is more easy to ensure.It can also be done when the area of fiberglass patch is smaller
Into tablet.
Fiberglass patch area is usually 0.25m2, fiberglass patch thickness is generally 2.5~5mm.Fiberglass patch is carried on the back
Face is equipped with reinforcing rib, and it is bonding with structure sheaf 2 to be more advantageous to it.
The anti-flammability of the patch and construction are not required to weld, overcome completely simply fired in traditional glass steel it is fatal lack
Point.And the temperature resistance of the patch reaches 150 DEG C (180 DEG C of moments).
A kind of composite bed 3 of desulfuration chimney fiberglass patch clad steel plate inner cylinder of the utility model uses intercrossed network type
Silicon-based modifying polymer；
Composite bed is that main erosion resistant coating 4 and structure sheaf 2 are realized to the key combined closely, its intensity, anti-corrosive properties, elasticity, temperature
The indexs such as degree deformation coefficient are both needed to meet the requirements.Composite bed 3 uses the silicon-based modifying elastic cements of intercrossed network type IPN-e, belongs to
New material, is different from traditional clay, its adhesive strength reaches more than 2.5MPa, 200 DEG C of heatproof, the especially anti-fluorination of antiseptic property
Hydrogen solution improving soaking is outstanding, stretch percentage elongation is more than 100%.
Fiberglass patch transports to chimney scene after being produced in batches in factory, after the cleaning of chimney internal cylinder inner wall on matrix
Fiberglass patch, is then pasted onto on inner wall of stack by one of clay of full coat with the silicon-based modifying elastic cements of IPN-e, after stickup,
Clay is higher than sheet of glass fiber reinforced plastics at gap, is stitched with scraper compacting clay, realizes the effect of edge sealing.
Main erosion resistant coating 4 sets confining bed 5 after blasting treatment；
Main erosion resistant coating 4 construct complete and by examination after, fiberglass patch outer surface sandblasting and clean, can be with
Ensure the reliable Nian Jie of main erosion resistant coating 4 and confining bed 5.After confining bed 5 is constructed so that fiberglass patch clad steel plate inner cylinder anti-corrosion
Structure forms self-locking, and leakproofness is more excellent, effectively can prevent corrosive medium from leaking；Meanwhile when can buffer temperature alternating
The swelling internal stress of generation.
A kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder of the utility model has the characteristics that：
1) material is saved；
The compound each layer of steel inner cylinder scheme of fiberglass patch has played the excellent performance of material therefor, respectively takes the chief, thing is most
It is used, and avoids waste of material, so as to reduce cost, has the characteristics that " section material ".
The fiberglass patch that particularly main erosion resistant coating 4 uses, not only prevents with outstanding as traditional glass steel inner cylinder
Rotten performance (being better than titanium steel plate), and there is anti-flammability (fire retardant), overcome the inflammable fatal defects of traditional glass steel.Structure sheaf
2 use common Q 235 or Q345 steel plates, can give full play to steel construction high intensity, the advantage of easy processing.Relative to traditional glass
Glass steel inner cylinder is carried by fiberglass body, and fiberglass patch thickness only needs to meet requirement for anticorrosion, greatly reduces erosion resistant coating
Cost.
According to the technical economic analysis of different inner cylinder Corrosion prevention schemes, the compound steel inner cylinder scheme of generally use fiberglass patch is
Economy optimal case, more most common titanium steel composite board scheme can save inner cylinder civil engineering costs about 20~35%.
2) self-locking type anticorrosion structure antiseptic property is more excellent；
The compound steel inner cylinder scheme of fiberglass patch, not only main erosion resistant coating 4 is with more excellent than traditional glass steel inner cylinder
Elegant antiseptic property (being better than titanium steel plate), and due to being additionally arranged one of confining bed 5 in the main outside of erosion resistant coating 4 so that fiberglass
Patch clad steel plate inner cylinder anticorrosion structure forms self-locking, and leakproofness is more excellent, effectively can prevent corrosive medium from leaking.
3) new material application, not easily to fall off；
The compound steel inner cylinder scheme of fiberglass patch, the new glass fibre reinforced plastic patch that its main erosion resistant coating 4 uses, not only has
With antiseptic property (being better than titanium steel plate) outstanding as traditional glass steel inner cylinder, and the inflammable spy of traditional glass steel is different from
Point, has anti-flammability, is difficult burning when naked light occurs；Its composite bed 3 employs the silicon-based modifying elasticity of intercrossed network type IPN-e
Clay, belongs to new material, is different from traditional clay, its adhesive property, heat resistance, antiseptic property, deformation performance are outstanding.
It is by IP N-e flexibilities clay that steel inner cylinder, flexible glass steel patch is closely compound, along with the glass through blasting treatment
The confining bed 5 that steel patch is reliably bonded, four laminated one；And each layer temperature deformation coefficient approaches, can ensure each layer compatibility of deformation,
It is not easily to fall off.
4) structure design is more accurate；
Traditional glass steel inner cylinder, or leaving excessive allowance in structure design, causes to waste；Insufficient rigidity, leads
Cause various problems.In the compound steel inner cylinder scheme of fiberglass patch, since the fiberglass patch is relatively thin, it can be not involved in
Inner tube structure calculates, and effectively prevent the shortcomings that traditional glass steel inner cylinder structure design is difficult so that structure design is more accurate.
5) product quality easily ensures；
Since glass fiber reinforced plastics product is higher to environmental requirement, the fiberglass patch is in plant produced, production environment room
Humiture is controllable, and product it is offline after need by stringent quality testing, product quality is easier to be protected.
Antiseptic property an order of magnitude higher than the fiberglass of field-winding of prefabrication fiberglass patch.Compare foam glass
The high several orders of magnitude of the compactness of brick.
6) construction quality is easy to control, speed of application is fast, construction is without dead angle；
Since fiberglass patch area is usually 0.25m2, fiberglass patch thickness is generally 2.5~5mm, so monolithic
Fiberglass patch is relatively light and the shape that is translucent.In construction, first one of full coat on matrix after the cleaning of chimney internal cylinder inner wall
Fiberglass patch, is then pasted onto on inner wall of stack by clay with the silicon-based modifying elastic cements of IPN-e.After stickup, glue at gap
Mud need to be higher than sheet of glass fiber reinforced plastics, then stitched with scraper compacting clay, realize the effect of edge sealing.
Due to fiberglass patch have the characteristics that it is frivolous, so construction when can visually check the clay between patch and matrix
It is whether full, so as to effectively overcome steel inner cylinder to serve as a contrast foam glass brick (import Bin Gao get) construction quality deficiency rambunctious.
In the compound steel inner cylinder scheme of fiberglass patch, fiberglass patch area is compared with relative to foam glass brick, (import guest is high
) larger, its construction is more quick, and speed of application is fast.Also, the construction of fiberglass patch can match with steel inner cylinder installation progress
Close, before steel inner cylinder lifting, the main erosion resistant coating 4 in steel inner cylinder to be lifted is pasted on ground, is not only constructed faster, Er Qieshi
Working medium amount is easier to be protected.About 50 days installation periods of general single 200-240 meters single internal cylinder chimney.Compare foam glass brick
Anti-corrosion installation save the time more than 1/3.
Due to fiberglass patch when shaping shape have can design mode, can be according to actual requirement of engineering, specific
Special-shaped part carries out supporting special-shaped shaping with mould, and special protection is carried out to privileged sites.And can be cut during in-site installation,
Polishing, it is ensured that construction is without dead angle.
7) easy-maintaining, long lifespan；
The compound steel inner cylinder scheme of fiberglass patch, since fiberglass patch area is smaller, if it is detachable leak source occur
Maintenance；Maintenance difficulty is small, the cycle is short, expense is low.Program service life was up to 30 years.
8) save land, environmental protection；
Fiberglass patch need to build winding workshop at the scene in plant produced, relative to traditional glass steel inner cylinder, and installation twines
Around equipment, site operation place has been saved, has been had the characteristics that " saving land ".Meanwhile it also avoid scene processing glass reinforced plastic inner cylinder can
Environmental pollution caused by energy, has the characteristics that " environmental protection ".
A kind of fiberglass patch area of desulfuration chimney fiberglass patch clad steel plate inner cylinder of the utility model compared with relative to
Foam glass brick is larger, its construction is more quick, and speed of application is fast.Also, the construction of fiberglass patch can be installed into steel inner cylinder
Degree is engaged, and before steel inner cylinder lifting, is pasted the main erosion resistant coating 4 in steel inner cylinder to be lifted on ground, is not only constructed faster,
And construction quality is easier to be protected.About 50 days installation periods of general single 200-240 meters single internal cylinder chimney.Compare foam
The time more than 1/3 is saved in the anti-corrosion installation of glass block.Due to fiberglass patch when shaping shape have can design mode, can root
According to actual requirement of engineering, supporting special-shaped shaping is carried out with mould in specific special-shaped part, special guarantor is carried out to privileged sites
Shield.And it can cut, polish during in-site installation, it is ensured that construction is without dead angle.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
The equivalent structure or equivalent flow shift made using the utility model description, is directly or indirectly used in other phases
The technical field of pass, is equally included in the patent within the scope of the utility model.
Claims (5)
1. a kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder, it is characterized in that, including insulating layer（1）, structure sheaf（2）, it is multiple
Close layer（3）, main erosion resistant coating（4）, confining bed（5）；The structure sheaf（2）Outside is provided with insulating layer（1）, structure sheaf（2）It is interior
Side surface is laid with composite bed（3）, composite bed（3）Surface lay main erosion resistant coating（4）, main erosion resistant coating（4）Outer surface apply
Equipped with confining bed（5）；The main erosion resistant coating（4）Thickness be for 2~5mm；The confining bed（5）Thickness be 2mm.
2. a kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder according to claim 1, it is characterized in that, the structure
Layer（2）It is made of Q235 or Q345 steel plates.
3. a kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder according to claim 1, it is characterized in that, it is described compound
Layer（3）It is made of the silicon-based modifying elastic cement of intercrossed network type.
4. a kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder according to claim 1, it is characterized in that, the master prevents
Rotten layer（4）For anti-flaming glass fiber reinforced plastics patch, thickness is 3~4mm.
5. a kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder according to claim 1, it is characterized in that, the closing
Layer（5）For the fiberglass of 1mm thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341303.9U CN207299001U (en) | 2017-04-01 | 2017-04-01 | A kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341303.9U CN207299001U (en) | 2017-04-01 | 2017-04-01 | A kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder |
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| Publication Number | Publication Date |
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| CN207299001U true CN207299001U (en) | 2018-05-01 |
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| CN201720341303.9U Expired - Fee Related CN207299001U (en) | 2017-04-01 | 2017-04-01 | A kind of desulfuration chimney fiberglass patch clad steel plate inner cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2017
- 2017-04-01 CN CN201720341303.9U patent/CN207299001U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Granted publication date: 20180501 |