CN202032598U - Anti-corrosion layer structure for desulfurization chimney corbel - Google Patents
Anti-corrosion layer structure for desulfurization chimney corbel Download PDFInfo
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- CN202032598U CN202032598U CN2011200879839U CN201120087983U CN202032598U CN 202032598 U CN202032598 U CN 202032598U CN 2011200879839 U CN2011200879839 U CN 2011200879839U CN 201120087983 U CN201120087983 U CN 201120087983U CN 202032598 U CN202032598 U CN 202032598U
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Abstract
The utility model discloses an anti-corrosion layer structure for a desulfurization chimney corbel, which belongs to the technical field of anti-corrosion, is positioned at a corbel part of a desulfurization chimney and comprises a fireproof brick layer (1), wherein a chimney base body telescopic seam (8) exists between chimney base bodies of the corbel part of the desulfurization chimney, and elastic silicon gel is respectively arranged in the chimney base body telescopic seam (8) and on the surface of the fireproof brick layer (1) for forming an elastic silicon gel layer (2). The anti-corrosion layer structure for the desulfurization chimney corbel has the advantages that the structure is simple, the use and the maintenance are convenient, the problems of anti-corrosion layer cracking and deformation easily generated at the part can be effectively solved, the service life is prolonged, the maintenance cost can be reduced to the maximum degree, the acid liquid corrosion and the smoke gas flushing can be effectively prevented, the anti-corrosion performance is good, the use effect is good, the construction difficulty is low, the maintenance is convenient, and the anti-corrosion layer structure conforms to the national standard and can be favorably popularized.
Description
Technical field
The utility model relates to a kind of aseptic technic, particularly a kind of aseptic technic of desulfuration chimney bracket.
Background technology
A large amount of SO2 are contained from the flue gas of boiler emission in thermal power plant before not setting up desulfurizer, directly the chimney by power plant enters atmosphere, and SO2 combines the formation acid solution with airborne moisture, accumulate over a long period with the form contaminated environment of acid rain, influences the healthy of people.
After the power plant desulfurization device was set up, this environmental issue was just solved, but what enter atmosphere through chimney before the desulfurization is high-temperature gas, there is not corrosivity, and after the desulfurization through chimney be the low temperature wet flue gas, contain the acid solution of heterogeneity, as: sulfuric acid, nitric acid etc., corrosivity is stronger.And previous inner wall of stack does not possess antiseptic property, so must carry out preservative treatment to inner wall of stack.The corrosion protective covering structure (especially thin portion's structure such as bracket) of carrying out chimney inside is very important, because the chimney structure seam is arranged, is out of shape bigger herein.If it is unreasonable that anti-corrosion layer structure is selected; corrosion protective covering does not play the protection buffer action or corrosion protective covering easily loses its performance; acid solution is passed anti-corrosion layer structure and is penetrated into the chimney matrix, will influence the safe in utilization of chimney, brings economic loss and potential safety hazard to entire power plant.
In the prior art, a kind of scheme is to utilize vitreous ceramic brick+binding agent as anticorrosive coat the bracket position all to be served as a contrast subsides, this scheme exist difficulty of construction greatly, the weak point when taking a lot of work; Also having a kind of scheme is to utilize APC hybridized polymer+polytetrafluoroethylene (PTFE) to make the anticorrosive coat parcel, its construction is simpler, but there is the serviceability defect of bad, because the bracket position is external force, stress concentration district, be out of shape greatlyyer, the anticorrosive coat of poor toughness is easy to crack at this position, stick up shell, simultaneously, its wear-resisting poor effect, anti-sweep of gases poor performance.
The utility model content
Goal of the invention of the present utility model is: at the problem of above-mentioned existence, provide a kind of simple in structure, difficulty of construction is little, with low cost, favorable anti-corrosion effect, anti-wear performance is good, can prevent the anti-corrosion layer structure of the desulfuration chimney bracket of external force, internal stress destruction, acid liquid corrosion or sweep of gases effectively.
The technical solution adopted in the utility model is as follows:
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, be positioned at the bracket portion of desulfuration chimney, it comprises fire brick layer, there is chimney matrix expansion joint between the chimney matrix of the bracket portion of desulfuration chimney, in the described chimney matrix expansion joint and the surface of fire brick layer is provided with elastic silica gel, forms the flexible silicon glue-line.
Owing to adopted said structure, for the distortion of the bracket portion of chimney provides elastomer to cushion, make under the situation of external force, stress concentration of bracket portion, be out of shape less, thereby the toughness that guarantees this anticorrosive coat is good, and the anticorrosive coat of assurance bracket portion is not easy to crack or stick up shell, guarantees the antiseptic effect of the anticorrosive coat of bracket portion, thereby guarantee its longer service life, reduce cost.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, the surface of described flexible silicon glue-line is equipped with the flexible protective layer, described flexible protective layer fixedly connected with fire brick layer on.
Owing to adopted said structure, flexible silicon glue-line and the combination of flexible protective layer as anti-corrosion layer structure, can fully be resisted the corrosion of various acid solutions, and non-deformability and impermeability are arranged, thereby guarantee that chimney is good at the antiseptic property of bracket portion.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model; the top of described flexible protective layer is provided with the fiberglass protective layer; the curved structure in the cross section of described fiberglass protective layer, and the fiberglass protective layer is fixedly connected on the fire brick layer, and the flexible protective layer is covered in its inside.
Owing to adopted said structure, flexible silicon glue-line and the combination of flexible protective layer as the internal layer of anticorrosive coat, can fully be resisted the corrosion of various acid solutions, and non-deformability and impermeability are arranged; Flexible protective layer and the combination of fiberglass protective layer can be resisted washing away of slurries and flue gas fully, and anti-wear performance is good.Flexible silicon glue-line, flexible protective layer and fiberglass protective layer combine, and as the anti-corrosion layer structure of refractory brick, can resist the corrosion of various acid solutions, have good non-deformability, excellent in durability.The curved structure in the cross section of described fiberglass protective layer can it is inner sealing structures such as flexible protective layer live, thereby make the longer service life of anticorrosive coat of bracket portion.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, described fiberglass protective layer and flexible protective layer are connected on the fire brick layer by screw.
Owing to adopted said structure, make anticorrosive coat be fixedly connected on the chimney matrix, it is more stable to make that anticorrosive coat gets structure, avoids the cracking of bracket portion anticorrosive coat or sticks up shell, guarantees that it is wear-resisting effective, and anti-sweep of gases performance is good.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, the junction of the surface of described screw and fiberglass protective layer and fire brick layer is provided with elastic silica gel.
Owing to adopted said structure, guarantee the sealing effectiveness of anticorrosive coat, thereby it is stable more to help anti-corrosion layer structure, guarantee that longer service life is of a specified duration.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, described flexible silicon glue-line is made by modified organic silicon rubber.
Owing to adopted said structure, made that its antiseptic effect is better.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, the thickness of described fiberglass protective layer are 1.8mm～2.2mm.
Owing to adopted said structure, make and satisfy national requirements by the fiberglass protective layer, be more conducive to promote.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, the thickness of described flexible protective layer are 1.8-2.2mm.
Owing to adopted said structure, make and satisfy national requirements by the flexible protective layer, be more conducive to promote.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, the thickness of described flexible silicon glue-line are 1.8-2.2mm.
Owing to adopted said structure, make and satisfy national requirements by the flexible silicon glue-line, be more conducive to promote.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
1. the anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, simple in structure, convenient maintenance can effectively solve anticorrosive coat cracking, problem on deformation that this position is prone to most, has prolonged service life, can reduce maintenance cost to greatest extent;
2. the anti-corrosion layer structure of desulfuration chimney bracket of the present utility model can prevent acid liquid corrosion and sweep of gases effectively, and antiseptic property is good, and result of use is good;
3. the anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, difficulty of construction is low, and is easy to maintenance, meets national standard, is beneficial to popularization.
Description of drawings
Fig. 1 is the schematic diagram of the anti-corrosion layer structure of desulfuration chimney bracket of the present utility model.
Mark among the figure: 1-fire brick layer, 2-flexible silicon glue-line, 3-flexible protective layer, 4-fiberglass protective layer, 5-fiberglass press strip, 6-elastic silica gel, other anticorrosive coat of 7-, 8-chimney matrix expansion joint, 9-screw.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Embodiment 2 is similar to embodiment 1, and its difference is: the thickness of described fiberglass protective layer 4 is 1.8mm, and its thickness also can be 2.2mm certainly, can select arbitrarily between 1.8-2.2mm, is as the criterion to satisfy actual needs; The thickness of described flexible protective layer 3 is 2mm, and its thickness also can be 2.2mm certainly, can select arbitrarily between 1.8-2.2mm, is as the criterion to satisfy actual needs; The thickness of described flexible silicon glue-line 2 is 2mm, and its thickness also can be 2.2mm certainly, can select arbitrarily between 1.8-2.2mm, is as the criterion to satisfy actual needs.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, for the thick fiberglass protective layer of the thick flexible protective layer+2mm of the thick flexible silicon glue-line+2mm of 2mm as refractory brick matrix anti-corrosion layer structure, gross thickness 6mm.This anti-corrosion layer structure with compare as anticorrosive coat with the vitreous ceramic brick, corrosion-resistant suitable with wearability, difficulty of construction is low, anti-deformation is better; With compare as anticorrosive coat with the APC hybridized polymer, corrosion resistance is suitable, wearability is better, anti-deformation is better.With the protective layer of this anticorrosive coat as chimney refractory brick matrix, by experiment, in some power plant's success test run usefulness, for example in Yibin Huang Jiao stake power plant, Chongqing Da Erkai power plant, Tieling Power Plant etc.Anti-corrosion layer structure of the present utility model; the thick thick fiberglass protective layer of flexible silicon glue-line+2mm flexible protective layer+2mm of utilization 2mm; gross thickness 6mm is as refractory brick matrix anti-corrosion layer structure, and it noly anyly the phenomenon that corrosion comes off takes place because of anticorrosive coat self structure problem in running time.Power plant has also avoided the chimney matrix taking place being corroded, the problem that causes power plant to stop production because of anticorrosive coat damages.
The anti-corrosion layer structure of desulfuration chimney bracket of the present utility model, simple in structure, convenient maintenance can effectively solve anticorrosive coat cracking, problem on deformation that this position is prone to most, has prolonged service life, can reduce maintenance cost to greatest extent; Can prevent acid liquid corrosion and sweep of gases effectively, antiseptic property is good, and result of use is good; Difficulty of construction is low, and is easy to maintenance, meets national standard, is beneficial to popularization.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. the anti-corrosion layer structure of a desulfuration chimney bracket, be positioned at the bracket portion of desulfuration chimney, it comprises fire brick layer (1), it is characterized in that: have chimney matrix expansion joint (8) between the chimney matrix of the bracket portion of desulfuration chimney, in the described chimney matrix expansion joint (8) and the surface of fire brick layer (1) is provided with elastic silica gel, forms flexible silicon glue-line (2).
2. the anti-corrosion layer structure of desulfuration chimney bracket as claimed in claim 1 is characterized in that: the surface of described flexible silicon glue-line (2) is equipped with flexible protective layer (3), and described flexible protective layer (3) is fixedly connected on the fire brick layer (1).
3. the anti-corrosion layer structure of desulfuration chimney bracket as claimed in claim 2; it is characterized in that: the top of described flexible protective layer (3) is provided with fiberglass protective layer (4); the curved structure in cross section of described fiberglass protective layer (4); and fiberglass protective layer (4) is fixedly connected on the fire brick layer (1), and flexible protective layer (3) is covered in its inside.
4. the anti-corrosion layer structure of desulfuration chimney bracket as claimed in claim 3 is characterized in that: described fiberglass protective layer (4) and flexible protective layer (3) are connected on the fire brick layer (1) by screw (9).
5. the anti-corrosion layer structure of desulfuration chimney bracket as claimed in claim 4 is characterized in that: the surface of described screw (9) and fiberglass protective layer (4) are provided with elastic silica gel (6) with the junction of fire brick layer (1).
6. as claim 1 or 2 or 3 or the anti-corrosion layer structure of 4 or 5 described desulfuration chimney brackets, it is characterized in that: described flexible silicon glue-line (2) is made by modified organic silicon rubber.
7. according to the anti-corrosion layer structure of claim 3 or 4 or 5 described desulfuration chimney brackets, it is characterized in that: the thickness of described fiberglass protective layer (4) is 1.8mm～2.2mm.
8. according to the anti-corrosion layer structure of claim 3 or 4 or 5 described desulfuration chimney brackets, it is characterized in that: the thickness of described flexible protective layer (3) is 1.8-2.2mm.
9. according to claim 1 or 2 or 3 or the anti-corrosion layer structure of 4 or 5 described desulfuration chimney brackets, it is characterized in that: the thickness of described flexible silicon glue-line (2) is 1.8-2.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200879839U CN202032598U (en) | 2011-03-30 | 2011-03-30 | Anti-corrosion layer structure for desulfurization chimney corbel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200879839U CN202032598U (en) | 2011-03-30 | 2011-03-30 | Anti-corrosion layer structure for desulfurization chimney corbel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202032598U true CN202032598U (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200879839U Expired - Lifetime CN202032598U (en) | 2011-03-30 | 2011-03-30 | Anti-corrosion layer structure for desulfurization chimney corbel |
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| CN (1) | CN202032598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661004A (en) * | 2012-05-14 | 2012-09-12 | 上海德昊化工有限公司 | Expansion joint for steel inner cylinder of chimney |
-
2011
- 2011-03-30 CN CN2011200879839U patent/CN202032598U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661004A (en) * | 2012-05-14 | 2012-09-12 | 上海德昊化工有限公司 | Expansion joint for steel inner cylinder of chimney |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU LONGZHIQUAN SCIENCE + TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHENGDU LONGQUAN ANTI-CORROSION ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610100 No. 353 whale long road, Longquanyi District, Sichuan, Chengdu Patentee after: Chengdu Longzhiquan Science & Technology Co., Ltd. Address before: 610100 No. 353 whale long road, Longquanyi District, Sichuan, Chengdu Patentee before: Chengdu Longquan Anti-Corrosion Engineering Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |