CN208934513U - A kind of composite heavy corrosion protection structure for thermal power plant titanium plate chimney - Google Patents
A kind of composite heavy corrosion protection structure for thermal power plant titanium plate chimney Download PDFInfo
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- CN208934513U CN208934513U CN201820258427.5U CN201820258427U CN208934513U CN 208934513 U CN208934513 U CN 208934513U CN 201820258427 U CN201820258427 U CN 201820258427U CN 208934513 U CN208934513 U CN 208934513U
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Abstract
The utility model belongs to anti-corrosion material technical field, and in particular to uses a kind of composite heavy corrosion protection structure for thermal power plant titanium plate chimney.This kind is used for the composite heavy corrosion protection structure of thermal power plant titanium plate chimney, on titanium plate chimney body, the titanium plate smokestack ontology includes that muti-piece titanium plate is welded, it further include nano-composite emulsion titanium plate base coating, at least one layer of photocuring fibre reinforced compos-ite, the nano-composite emulsion titanium plate base coating and at least one layer of photocuring fibre reinforced compos-ite are set in turn in the commissure of muti-piece titanium plate welding, for closing weld seam.The advantages that above-mentioned composite heavy corrosion protection titanium plate chimney has mechanical strength, high electricity, thermal insulation, and high temperature tolerance, thermal shock resistance are good, and the coefficient of expansion is small；Chemosmosis can be prevented well, completely cut off substrate to the full extent and contacted with the external world, guarantee the long-time stability of substrate；And construction time, difficulty of construction and cost of labor can be greatly lowered.
Description
Technical field
The utility model belongs to anti-corrosion material technical field, and in particular to is used for thermal power plant titanium plate chimney using a kind of
Composite heavy corrosion protection structure.
Background technique
With improved day by day and environmental consciousness the increasingly raising of national environmental protection regulation, in order to reduce sulfur dioxide (SO2) emissions institute
Caused by atmosphere pollution, thermal power plant because burn coal class A fuel A generate flue gas be both needed to carry out desulfurization process.And through overly moist
Flue gas after method desulfurization is formed sternly inner wall of stack containing high temperature sulfur dioxide, sulfuric acid, sulfurous acid, hydrofluoric acid and various heteroacid
The defects of heavy corrosion, traditional heavy anticorrosive material is because of its corrosion resistance, mechanical performance, heat resistance, it is difficult to resist high in chimney
Warm flue gas corrosion, wash away at a high speed, vibrate and high-altitude swing etc. harsh environments.Therefore, most of thermal power plant is high using price
Expensive metal titanium composite panel is as chimney inner sleeve, abbreviation titanium plate chimney.
Although titanium composite panel price is extremely expensive, excellent anti-corrosion performance, mechanical performance is good, as thermal power plant
For chimney inner sleeve, have splendid durability and stability, but titanium plate weld when be easy to produce fine crack, incomplete fusion,
The defects of stomata, slag inclusion, existing chimney all use the titanium composite panel of big specification to reduce welded seam as far as possible.But specification is big
Not only price is high but also processing is inconvenient for titanium composite panel, and furthermore existing welding procedure generally takes the secondary weldering of 5cm or so patch type
It connects, but uniformity of constructing is extremely difficult to, construction quality is unstable, and power plant's titanium plate chimney corrosion both at home and abroad also mainly occurs at present
In weld seam and secondary welding welded seam area, great economic loss is also therefore caused.So the weld seam of titanium plate chimney and secondary
It is that our times various countries are asked using the main anti-corrosion that the thermal power plant of titanium plate chimney faces that welded seam, which increases heavy antisepsis processing,
One of topic.
As more and more thermal power plants use metal titanium composite panel as chimney inner sleeve, each titanium plate chimney is dynamic
The reinforcement anti-corrosion of often several necessarily more than one hundred million yuan of cost inputs, titanium plate chimney weld seam and secondary welding weld seam has been very urgent, institute
It is required with the selection of its anti-corrosion heavy antisepsis construction technology and the comprehensive collocation construction of anti-corrosion material etc. higher and higher.Novel anticorrosion
Technique and selected anti-corrosion material should meet: (1) its corrosion resistance should have well the high corrosion flue gas in chimney
Resistivity；(2) its mechanical performance for the washing away of chimney high speed flue gas, vibrate and high-altitude is swung should have and resist energy well
Power；(3) its temperature tolerance should have good resistivity for the high-temperature flue gas in chimney；(4) metal titanium composite panel is needed to have
There is good adhesive strength；(5) anticorrosion process and material will guarantee that easy for construction, the period is short, and be conducive to carry out erosion resistant coating
Maintenance, repairing.These specify the direction of anti-corrosion heavy antisepsis construction technology and selected materials.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, to solve the firepower electrical plant industry institute for using titanium plate chimney
The problem faced provides and a kind of is able to satisfy it to anti-corrosion, protection against erosion, crack resistence, high-mechanical property and high-temperature resistant performance requirement
Composite heavy corrosion protection structure for thermal power plant titanium plate chimney.
To realize above-mentioned purpose of utility model, the utility model provides a kind of answering for thermal power plant titanium plate chimney
Heavy antisepsis structure is closed, is set on titanium plate chimney body, the titanium plate chimney body includes that muti-piece titanium plate is welded, compound heavy anti-
Rotten structure includes nano-composite emulsion titanium plate base coating, at least one layer of photocuring fibre reinforced compos-ite, described nano combined
Lotion titanium plate base coating and at least one layer of photocuring fibre reinforced compos-ite are set in turn in the commissure of muti-piece titanium plate welding,
For weld seam to be closed.
Further, nano-composite emulsion titanium plate base coating at least respectively extends 100-200mm, multilayer optical along weld seam both sides
The lap of splice is not less than 50mm when cured fiber enhances composite layer overlap joint.
Further, every layer of photocuring fibre reinforced compos-ite include one to two panels photocuring fiber-reinforced composite piece
Material is equipped with nano-composite emulsion titanium plate base coating between adjacent photocuring fibre reinforced compos-ite.
It further, further include external seal coating, the external seal coating includes being set to nano-composite emulsion titanium plate base
At the connection gap of priming coat and photocuring fibre reinforced compos-ite.
Further, external seal coating is that nano-composite emulsion titanium plate base coating is deployed with silica flour.
It further, further include interior seal coating, which is set to titanium plate weld seam and nano-composite emulsion titanium
Between plate base coating.
Further, interior seal coating is that nano-composite emulsion titanium plate base coating is deployed with silica flour.
Composite heavy corrosion protection structure provided by the utility model for thermal power plant titanium plate chimney, uses nano combined cream
Liquid titanium plate base coating, photocuring fibre reinforced compos-ite combine, and nano-composite emulsion titanium plate base strong with the adhesive force of titanium plate
Connectivity between priming coat and photocuring fibre reinforced compos-ite is good, and has mechanical strength, high electricity, thermal insulation,
The advantages that high temperature tolerance, thermal shock resistance are good, and the coefficient of expansion is small；
Nano-composite emulsion titanium plate base coating, photocuring fibre reinforced compos-ite are in the desulfidation tail gas discharged in chimney
Contained sulfur dioxide, sulfuric acid, sulfurous acid, hydrofluoric acid and various heteroacid etc. have good resistivity, while also having height
Fine and close, improved corrosion medium permeability, can prevent chemosmosis well, completely cut off substrate to the full extent and contact with the external world, protect
Demonstrate,prove the long-time stability of substrate；
Composite heavy corrosion protection structure construction of this kind for thermal power plant titanium plate chimney is convenient and efficient, fundamentally prevents layer
The infiltration convection current of inside and outside corrosive medium or air, play fabulous anti-corrosion, protection, impervious, enhancing, wear-resisting, antiscour, cracking resistance,
The effects of shock resistance, and construction time, difficulty of construction and cost of labor can be greatly lowered.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the utility model for the composite heavy corrosion protection structure of thermal power plant titanium plate chimney.
Specific embodiment
The composite heavy corrosion protection structure and construction technology for thermal power plant titanium plate chimney a kind of to the utility model below
It is described in further detail.
Shown in referring to Fig.1, for the composite heavy corrosion protection structure of thermal power plant titanium plate chimney, it is set to titanium plate chimney body 1
On, including nano-composite emulsion titanium plate base coating 2, at least one layer of photocuring fibre reinforced compos-ite 3 and seal coating 4；
Titanium plate chimney body 1, including muti-piece titanium plate 11 are welded, nano-composite emulsion titanium plate base coating 2 and at least
One layer of photocuring fibre reinforced compos-ite 3 is set in turn at the weld seam 12 of muti-piece titanium plate welding for closing weld seam；
Nano-composite emulsion titanium plate base coating 2, using nano-composite emulsion titanium plate base coating brushing, along weld seam both sides
At least respectively extend 100-200mm, this kind of nano-composite emulsion metal primary coat is formed by the raw material of following parts by weight: modified vinyl
Resin 30-40%, methacrylate oligomer 10-15%, polyester phosphate 10-15%, hollow red bayberry type nanofiller 15-
20%, acrylate metal salt 3-8%, curing agent 1-5%, defoaming agent 1-3%, levelling agent 1-5%；
Photocuring fibre reinforced compos-ite 3, every layer of photocuring fibre reinforced compos-ite 3 use one to two panels photocuring fiber
Enhance 31 paving of composite sheet, multilayer optical cured fiber enhances lap of splice when composite layer 3 overlaps and is not less than 50mm, adjacent light
Cured fiber, which enhances, is equipped with nano-composite emulsion titanium plate base coating 2, this kind of photocuring fiber-reinforced composite piece between composite layer
Material is formed by the raw material of following parts by weight: modified vinyl resin 20-30%, methacrylate oligomer 20-30%, polyester
Phosphate 10-15%, glass fibre 10-20%, hollow red bayberry type nanofiller 10-15%, photoinitiator 1-5%, defoaming agent
1-3%, inorganic wear resistant filler 10-15%；
Seal coating 4, including interior seal coating 41 and external seal coating 42, the interior setting of seal coating 41 and titanium plate weld seam
Between 12 and nano-composite emulsion titanium plate base coating 2, which is set to the painting of nano-composite emulsion titanium plate substrate
Layer 2 is at the connection gap of photocuring fibre reinforced compos-ite 3, and interior seal coating 41, external seal coating 42 are by nano combined cream
Liquid titanium plate base coating is deployed with silica flour.
The heavy antisepsis construction technology of titanium plate chimney weld seam for thermal power plant, the specific steps are as follows:
Step 1 makes in carrying out the construction of nano-composite emulsion titanium plate base coating in the weld seam base of titanium plate chimney body
With nano-composite emulsion titanium plate base coating brushing, construction area is at least respectively to extend 100-200mm along weld seam both sides, is constructed
Allow its natural normal temperature cure 3-12 hours after the completion；
If using nano-composite emulsion titanium plate base coating because having the defects of pit, slight crack, hole in titanium plate weld seam base
With silica flour be deployed into interior gasket coating to carry out building base carry out repairing and it is levelling, interior gasket coating mend must be in initial set
The preceding timely felt roll floating for speckling with diluent, or after its solidification, surface polishes flat as interior seal coating；
Step 2, the solidification construction of photocuring fibre reinforced composite sheet, the nano-composite emulsion titanium plate substrate after solidification
Photocuring fibre reinforced composite sheet, the curing time of singualtion photocuring fibre reinforced composite sheet are pasted and solidified on coating
About 5-10min, the regions curing 15-20min of biplate, three pieces regions curing 25-30min, four and it is cured above when, need to be layered
Two sheets are pasted in solidification first, after its solidification, which is polished coarse, and wiped with diluent or detergent
Only, brushing nano-composite emulsion metal primary coat, and lower two sheets are pasted, then solidified, and so on；
The overlapping end of step 3, photocuring fibre reinforced compos-ite and nano-composite emulsion titanium plate base coating, turning
Integral sealing is carried out using the external seal coating that nano-composite emulsion titanium plate base coating adds silica flour to deploy at structure gap
Processing forms outer sealing layers.
Specific embodiment one:
Shown in referring to Fig.1, for the composite heavy corrosion protection structure of thermal power plant titanium plate chimney, it is set on titanium plate chimney body
1, nano-composite emulsion titanium plate base coating 2, at least one layer of photocuring fibre reinforced compos-ite 3 and seal coating 4；
Titanium plate chimney body 1, including muti-piece titanium plate 11 are welded, nano-composite emulsion titanium plate base coating 2 and at least
One layer 3 layers of photocuring fiber-reinforced composite are set in turn in the commissure of muti-piece titanium plate welding for closing weld seam 12；
Nano-composite emulsion titanium plate base coating 2, using nano-composite emulsion titanium plate base coating brushing, along weld seam both sides
At least respectively extend 150mm, this kind of nano-composite emulsion metal primary coat is formed by the raw material of following parts by weight: modified vinyl resin
38%, methacrylate oligomer 14%, polyester phosphate 13%, hollow red bayberry type nanofiller 18%, metal acrylate
Salt 7%, curing agent 4%, defoaming agent 2%, levelling agent 4%；
Photocuring fibre reinforced compos-ite 3 includes lower layer 31 and upper layer 32, and every layer multiple using the fiber reinforcement of two panels photocuring
33 paving of sheet material is closed, is equipped with nano-composite emulsion titanium plate base coating 2, this kind of light between adjacent photocuring fibre reinforced compos-ite
Cured fiber enhances composite sheet and forms by the raw material of following parts by weight: modified vinyl resin 22%, methacrylate are neat
Aggressiveness 23%, polyester phosphate 15%, glass fibre 12%, hollow red bayberry type nanofiller 12%, photoinitiator 2%, defoaming
Agent 1%, inorganic wear resistant filler 13%；
Seal coating 4, including interior seal coating 41 and external seal coating 42, the interior setting of seal coating 41 and titanium plate weld seam
Between 12 and nano-composite emulsion titanium plate base coating 2, which is set to the painting of nano-composite emulsion titanium plate substrate
Layer 2 is at the connection gap of photocuring fibre reinforced compos-ite 3, and interior seal coating 41, external seal coating 42 are by nano combined cream
Liquid titanium plate base coating is deployed with silica flour, and ratio is respectively 2:1-3,1:1-3.
The heavy antisepsis construction technology of titanium plate chimney weld seam for thermal power plant, the specific steps are as follows:
Step 1 is applied in carrying out nano-composite emulsion titanium plate base coating 2 in 12 base of weld seam of titanium plate chimney body 1
Work, using nano-composite emulsion titanium plate base coating brushing, construction area is at least respectively to extend 150mm, standard along weld seam both sides
Dosage: 0.08kg/m2 × 1 allows its natural normal temperature cure 8 hours using roller coating, brushing or spraying application after the completion of construction；
If because having the defects of pit, slight crack, hole in titanium plate weld seam base, using interior gasket coating to carrying out building base
Repairing and levelling is carried out, interior gasket coating mend must be smoothed out with the felt roll for speckling with diluent in time before initial set, or solid to it
After change, surface polishes flat as interior seal coating 41；
Step 2, the solidification construction of photocuring fibre reinforced composite sheet, the nano-composite emulsion titanium plate substrate after solidification
Photocuring fibre reinforced composite sheet, first two block piece material of paving are pasted and solidified on coating, become lower layer 31 after being solidified,
It is the polishing of the join domain on lower layer 31 and upper layer is coarse, golden with diluent or detergent wiped clean, brushing nano-composite emulsion
Belong to primary coat, and two sheets under paving, becomes upper layer 32 after being solidified, ultimately form photocuring fibre reinforced compos-ite, it is single
Piece photocuring fibre reinforced composite sheet standardized amount 2.65kg/m2 × 1 layer；
The construction of photocuring fibre reinforced compos-ite: according to live actual size and shape, cut or cut sheet material；It will cut
The sheet attaching face film of completion with while opening primary coat stickup, uniformly firmly, keep sheet material completely close with coating as far as possible
Fitting, when overlap joint, open topmost thin film not less than 5cm, sheet material are overlapped, the topmost thin film opened is covered back and compression (can
Rolled using tool) lap-joint's section circular arc is seamlessly transitted, the lap of splice must not be less than 50mm, overlap between the adjacent segment that should be staggered
Mouthful, make it not on the same line, to prevent multiple overlap joint；When needing first to solidify a part of sheet material, it is necessary to reserved and lower part
That divides takes interface position, and width about 10cm is protected using shading aluminium film, prevented from being cured；Using Philip HPA-400S lamp group
Solidified, according to the appropriate polygamy of construction area size for lamps and lanterns, lamps and lanterns irradiation distance about 20-40cm solidifies area about 0.6m
× 0.8m=0.48m2；
The overlapping end of step 3, photocuring fibre reinforced compos-ite and nano-composite emulsion titanium plate base coating, turning
Integral sealing is carried out using the external seal coating that nano-composite emulsion titanium plate base coating adds silica flour to deploy at structure gap
Processing forms outer sealing layers 42.
1 is shown in Table using the performance indicator of one gained sample of specific embodiment.
1. properties of product table of table
It above are only a specific embodiment of the utility model, but the conception that is related to of the utility model is not limited to
This, all non-essential modifications to the present invention made by this concept should belong to infringement scope of protection of the utility model
Behavior.
Claims (7)
1. being used for the composite heavy corrosion protection structure of thermal power plant titanium plate chimney, it is set on titanium plate chimney body, the titanium plate chimney
Ontology includes that muti-piece titanium plate is welded, it is characterised in that: composite heavy corrosion protection structure includes that nano-composite emulsion titanium plate substrate applies
Layer, at least one layer of photocuring fibre reinforced compos-ite, the nano-composite emulsion titanium plate base coating and at least one layer of photocuring
Fibre reinforced compos-ite is set in turn in the commissure of muti-piece titanium plate welding, for closing weld seam.
2. the composite heavy corrosion protection structure according to claim 1 for thermal power plant titanium plate chimney, it is characterised in that: institute
It states nano-composite emulsion titanium plate base coating and at least respectively extends 100-200mm, the enhancing of multilayer optical cured fiber again along weld seam both sides
The lap of splice is not less than 50mm when closing layer overlap joint.
3. according to the composite heavy corrosion protection structure described in claim 1 for thermal power plant titanium plate chimney, it is characterised in that: described
Every layer of photocuring fibre reinforced compos-ite include one to two panels photocuring fibre reinforced composite sheet, adjacent photocuring fiber increases
Nano-composite emulsion titanium plate base coating is equipped between strong composite layer.
4. the composite heavy corrosion protection structure according to claim 1 or 3 for thermal power plant titanium plate chimney, feature exist
In: it further include external seal coating, the external seal coating includes being set to nano-composite emulsion titanium plate base coating and photocuring
At the connection gap of fibre reinforced compos-ite.
5. the composite heavy corrosion protection structure according to claim 4 for thermal power plant titanium plate chimney, it is characterised in that: institute
Stating external seal coating is that nano-composite emulsion titanium plate base coating is deployed with silica flour.
6. the composite heavy corrosion protection structure according to claim 1 or 3 for thermal power plant titanium plate chimney, feature exist
In: it further include interior seal coating, which is set between titanium plate weld seam and nano-composite emulsion titanium plate base coating.
7. the composite heavy corrosion protection structure according to claim 6 for thermal power plant titanium plate chimney, it is characterised in that: institute
Stating interior seal coating is that nano-composite emulsion titanium plate base coating is deployed with silica flour.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286358A (en) * | 2018-02-13 | 2018-07-17 | 石狮华宝新材料工程有限公司 | Composite heavy corrosion protection structure and construction technology for thermal power plant titanium plate chimney |
| CN110924736A (en) * | 2019-12-16 | 2020-03-27 | 石狮华宝新材料工程有限公司 | Photocuring nano anticorrosive material for desulfurization tail gas chimney and construction process thereof |
-
2018
- 2018-02-13 CN CN201820258427.5U patent/CN208934513U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286358A (en) * | 2018-02-13 | 2018-07-17 | 石狮华宝新材料工程有限公司 | Composite heavy corrosion protection structure and construction technology for thermal power plant titanium plate chimney |
| CN108286358B (en) * | 2018-02-13 | 2024-03-19 | 石狮华宝新材料工程有限公司 | Composite heavy-duty corrosion-resistant structure for titanium plate chimney of thermal power plant and construction process |
| CN110924736A (en) * | 2019-12-16 | 2020-03-27 | 石狮华宝新材料工程有限公司 | Photocuring nano anticorrosive material for desulfurization tail gas chimney and construction process thereof |
| CN110924736B (en) * | 2019-12-16 | 2021-08-06 | 石狮华宝新材料工程有限公司 | Photocuring nano anticorrosive material for desulfurization tail gas chimney and construction process thereof |
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