CN201881603U - Corrosion-resistant layer structure of steel girder in spray area of desulfurization absorption tower - Google Patents
Corrosion-resistant layer structure of steel girder in spray area of desulfurization absorption tower Download PDFInfo
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- CN201881603U CN201881603U CN2010206870138U CN201020687013U CN201881603U CN 201881603 U CN201881603 U CN 201881603U CN 2010206870138 U CN2010206870138 U CN 2010206870138U CN 201020687013 U CN201020687013 U CN 201020687013U CN 201881603 U CN201881603 U CN 201881603U
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Abstract
The utility model discloses a corrosion-resistant layer structure of a steel girder in a spray area of a desulfurization absorption tower, belonging to the technical field of corrosion prevention. The corrosion-resistant layer structure of the steel girder in the spray area of the desulfurization absorption tower comprises a supporting girder steel base body (1) arranged at the innermost layer, a resin flake layer (2) is arranged outside the supporting girder steel base body (1), a glass steel layer (3) is arranged outside the resin flake layer (2), and a ceramic powder corrosion-resistant layer (4) is arranged outside the glass steel layer (3). The corrosion-resistant layer structure of the steel girder in the spray area of the desulfurization absorption tower has a simple structure, low cost and low difficulty in construction, can prevent corrosion of acid liquor and scouring of smoke, has good corrosion resistance, can fully resist corrosion of various acid liquor, has impermeability, reduces the maintenance cost, and is beneficial to promotion.
Description
Technical field
The utility model relates to a kind of aseptic technic, the anti-corrosion layer structure of particularly a kind of desulfuration absorbing tower spray district girder steel.
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.The nucleus equipment of desulfurizer is a desulfuration absorbing tower, and it is the cardiac component of desulfurizer, and desulfuration absorbing tower adds that by carbon steel structure rational anti-corrosion layer structure forms, and therefore selects rational anti-corrosion layer structure very important.Because containing the flue gas of a large amount of SO2 passes through from desulfuration absorbing tower; so whole desulfurizing tower inside is sour environment; the corrosion protective covering structure of carrying out desulfurizing tower inside is very important; if it is unreasonable that anti-corrosion layer structure is selected, corrosion protective covering does not play the protection buffer action, and acid solution is passed anti-corrosion layer structure and is penetrated into carbon steel shell; corrosion carbon steel shell and boring a hole; a large amount of acid liquor leakages go out the desulfurizing tower contaminated environment, even cause desulfurizing tower not use, and entire power plant is shut down the serious consequence that can not generate electricity.
In the prior art, a kind of scheme is to utilize the C276 alloy sheets to wrap up girder steel as anticorrosive coat, and its effect is better, but there is the too high weak point of cost in it; Also having a kind of scheme is to utilize rubber slab to do anticorrosive coat parcel girder steel, its antiseptic effect is better, but still there is a higher defective of cost, simultaneously, its wear-resisting poor effect, generally, operation 2-3, the phenomenon that rubber slab is washed away, bores a hole happens occasionally, the corresponding high problem of maintenance cost of bringing.Also having a kind of scheme is to adopt the vinyl ester resin scale to add fiberglass parcel girder steel, favorable anti-corrosion effect, but still have the higher defective of cost, simultaneously, its wear-resisting weak effect used about 1 year, the phenomenon that anticorrosive coat is washed away perforation is many, the corresponding high problem of maintenance cost of bringing.
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, can prevent anti-corrosion layer structure acid liquid corrosion and sweep of gases, with low cost, difficulty of construction is low, favorable anti-corrosion effect, anti-wear performance are good desulfuration absorbing tower spray district girder steel, adopt this anti-corrosion layer structure, can prevent acid liquid corrosion and sweep of gases.
The technical solution adopted in the utility model is as follows:
The anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel, comprise the brace summer steel matrix that is arranged at innermost layer, described brace summer steel matrix is outside equipped with the resin scale layer, and described resin scale layer is outside equipped with frp layer, and described frp layer is outside equipped with the ceramic powder wearing layer.
Owing to adopted said structure, resin scale layer and frp layer combination as the internal layer of anticorrosive coat, can fully be resisted the corrosion of various acid solutions, and impermeability is arranged; Frp layer and the combination of ceramic powder wearing layer.Can resist washing away of spray district's slurries and flue gas fully, anti-wear performance is good; Ester scale layer, frp layer and ceramic powder wearing layer combine, and as the anti-corrosion layer structure of spray district girder steel, can resist the corrosion of various acid solutions, have good antiseptic property, and excellent in durability.
The anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel, described resin scale layer is the vinyl ester resin scale layer.
Adopt the vinyl ester resin scale layer, had good Corrosion Protection.
The anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel, the thickness of described ceramic powder wearing layer is 1.8mm～2.2mm.
Adopting the thickness of ceramic powder wearing layer is 1.8mm～2.2mm, satisfies country and industry standard, is beneficial to promote the use.
The anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel, the thickness of described ceramic powder wearing layer is 2mm.
The anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel, the thickness of described frp layer is 1mm.
The anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel, the thickness of described resin scale layer is 2mm.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
1. the anti-corrosion layer structure of desulfuration absorbing tower of the present utility model spray district girder steel, simple in structure, with low cost, difficulty of construction is low;
2. the anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel can prevent acid liquid corrosion and sweep of gases, and antiseptic property is good;
3. the anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel can fully be resisted the corrosion of various acid solutions, and impermeability is arranged, and has reduced maintenance cost, is beneficial to popularization.
Description of drawings
Fig. 1 is the schematic diagram of the anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel.
Mark among the figure: 1-brace summer steel matrix, 2-resin scale layer, 3-frp layer, 4-ceramic powder wearing layer.
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.
As shown in Figure 1, the anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel, comprise the brace summer steel matrix 1 that is arranged at innermost layer, described brace summer steel matrix 1 is outside equipped with resin scale layer 2, described resin scale layer 2 is outside equipped with frp layer 3, described frp layer 3 is outside equipped with ceramic powder wearing layer 4, and described resin scale layer 2 is the vinyl ester resin scale layer.The thickness of described ceramic powder wearing layer 4 is 2mm.The thickness of described frp layer 3 is 1mm, the thickness of described resin scale layer 2 is 2mm, the thickness of ceramic powder wearing layer 4 is 2mm, the anticorrosive coat gross thickness that gets desulfuration absorbing tower spray of the present utility model district girder steel is 5mm, and allow to exist 10% deviation, the thickness that is described frp layer 3 is 1mm ± 10%, the thickness of resin scale layer 2 is 2mm ± 10%, the thickness of ceramic powder wearing layer 4 is 2mm ± 10%, gross thickness is 5mm ± 10%, thereby, meet country and industry standard, satisfy the ratio between each layer.
The anti-corrosion layer structure of desulfuration absorbing tower spray of the present utility model district girder steel is for the ceramic wearing coat that the thick vinyl base ester resin fiberglass that scale+1 ㎜ is thick+2 ㎜ of 2mm are thick is distinguished girder steel anti-corrosion layer structure, gross thickness 5 ㎜ as spray.This anti-corrosion layer structure with compare as anticorrosive coat with C276, corrosion-resistant suitable with wearability, expense is lower; With compare as anticorrosive coat with rubber layer, corrosion resistance is suitable, wearability is better, expense is lower.With the protective layer of this anticorrosive coat as spray district girder steel; by experiment; use in some power plant's success test runs; for example in power plant such as Tongchuan, Shaanxi power plant, Yongji, Shanxi power plant, Sichuan Huaying hill power plant, the yellow power plant in Lip river, Chongqing; anti-corrosion layer structure of the present utility model; use the 2 ㎜ ceramic wearing coat that the fiberglass that thick vinyl ester resin scale+1 ㎜ is thick+2 ㎜ are thick; gross thickness 5 ㎜ are as spray district girder steel anti-corrosion layer structure; its operate time has reached more than 2 years, no any phenomenon because of anticorrosive coat self structure problem generation corrosion leakage.Power plant has also avoided because of anticorrosive coat damages acid liquor leakage taking place, and causes environmental pollution problems.
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. a desulfuration absorbing tower sprays the anti-corrosion layer structure of distinguishing girder steel, comprise the brace summer steel matrix (1) that is arranged at innermost layer, it is characterized in that: described brace summer steel matrix (1) is outside equipped with resin scale layer (2), described resin scale layer (2) is outside equipped with frp layer (3), and described frp layer (3) is outside equipped with ceramic powder wearing layer (4).
2. the anti-corrosion layer structure of desulfuration absorbing tower spray according to claim 1 district girder steel, it is characterized in that: described resin scale layer (2) is the vinyl ester resin scale layer.
3. the anti-corrosion layer structure of desulfuration absorbing tower spray according to claim 1 and 2 district girder steel, it is characterized in that: the thickness of described ceramic powder wearing layer (4) is 1.8mm～2.2mm.
4. the anti-corrosion layer structure of desulfuration absorbing tower spray according to claim 3 district girder steel, it is characterized in that: the thickness of described ceramic powder wearing layer (4) is 2mm.
5. according to the anti-corrosion layer structure of claim 1 or 2 or 4 described desulfuration absorbing tower spray district girder steels, it is characterized in that: the thickness of described frp layer (3) is 1mm.
6. the anti-corrosion layer structure of desulfuration absorbing tower spray according to claim 3 district girder steel, it is characterized in that: the thickness of described frp layer (3) is 1mm.
7. according to the anti-corrosion layer structure of claim 1 or 2 or 4 or 6 described desulfuration absorbing tower spray district girder steels, it is characterized in that: the thickness of described resin scale layer (2) is 2mm.
8. the anti-corrosion layer structure of desulfuration absorbing tower spray according to claim 3 district girder steel, it is characterized in that: the thickness of described resin scale layer (2) is 2mm.
9. the anti-corrosion layer structure of desulfuration absorbing tower spray according to claim 5 district girder steel, it is characterized in that: the thickness of described resin scale layer (2) is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206870138U CN201881603U (en) | 2010-12-29 | 2010-12-29 | Corrosion-resistant layer structure of steel girder in spray area of desulfurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206870138U CN201881603U (en) | 2010-12-29 | 2010-12-29 | Corrosion-resistant layer structure of steel girder in spray area of desulfurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201881603U true CN201881603U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206870138U Expired - Lifetime CN201881603U (en) | 2010-12-29 | 2010-12-29 | Corrosion-resistant layer structure of steel girder in spray area of desulfurization absorption tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN201881603U (en) |
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2010
- 2010-12-29 CN CN2010206870138U patent/CN201881603U/en not_active Expired - Lifetime
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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: 20110629 |