CN202024345U - Anticorrosive coating structure used for thermal power plant concrete chimney expansion joint - Google Patents
Anticorrosive coating structure used for thermal power plant concrete chimney expansion joint Download PDFInfo
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- CN202024345U CN202024345U CN2011200711293U CN201120071129U CN202024345U CN 202024345 U CN202024345 U CN 202024345U CN 2011200711293 U CN2011200711293 U CN 2011200711293U CN 201120071129 U CN201120071129 U CN 201120071129U CN 202024345 U CN202024345 U CN 202024345U
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- silicon glue
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Abstract
The utility model discloses an anticorrosive coating structure used for a thermal power plant concrete chimney expansion joint, which belongs to the field of anti-corrosion technique. The anticorrosive coating structure used for the thermal power plant concrete chimney expansion joint comprises a concrete substrate (1) arranged at the innermost layer, wherein an elastic silica gel layer (2) is arranged outside the concrete substrate (1), a 400g/m<2> glass fiber cloth layer is arranged outside the elastic silica gel layer (2), and an elastic silica gel layer (4) is arranged outside the glass fiber cloth layer (3). The anticorrosive coating structure used for the thermal power plant concrete chimney expansion joint has a simple structure, low cost, low construction difficulty, good anticorrosion performance and impermeability, can prevent acid corrosion and flue gas scouring, can fully resist deformation of the size and the height of the expansion joint caused by temperature difference change, and is conductive to popularization, and the maintenance cost is reduced.
Description
Technical field
The utility model relates to a kind of aseptic technic, particularly a kind of anti-corrosion layer structure that uses on concrete chimney.
Background technology
A large amount of SO is contained from the flue gas of boiler emission in thermal power plant before not setting up desulfurizer
2, directly the chimney by power plant enters atmosphere, SO
2Combine the formation acid solution with airborne moisture, accumulate over a long period with the form contaminated environment of acid rain, and influence the healthy of people.After heat-engine plant desulfurizer was set up, this environmental issue was just alleviated.After thermal power plant set up desulfurizer, the temperature of the inner flue gas of chimney was approximately about 50 degree, and a large amount of water vapours of discharging in the boiler are in chimney and SO
2The formation acid solution of condensing on the inwall of acid solution attached to chimney, can erode to chimney, and the long-term accumulation meeting influences the quality and the service life of chimney.Owing to contain a large amount of SO
2Flue gas from chimney, pass through; so whole chimney inside is sour environment; the corrosion protective covering structure of carrying out chimney 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; acid solution is passed anti-corrosion layer structure and is penetrated into the chimney housing, corrosion housing and boring a hole, and a large amount of acid liquor leakages go out chimney and can pollute environment.Chimney is the sign building of thermal power plant, also is super-high buildings thing (most up to more than 180 meters), and the chimney self structure that is corroded is influenced, easilier causes great potential safety hazard.
In the currently used technology, a kind of scheme is to utilize the titanium plate to wrap up inner wall of stack as anticorrosive coat, and the effect of this anti-corrosion layer structure is better, but therefore the cost of Titanium costliness very just exists the too high weak point of cost; Another kind of scheme is to utilize foam glass brick to do anticorrosive coat parcel inner wall of stack, its antiseptic effect is better, but the expansion joint between the glass block, can be subjected to difference variation and change, the antiseptic effect at this place is not good, generally, moves 1 year, the phenomenon of expansion joint perforation happens occasionally 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, with low cost, difficulty of construction is low, favorable anti-corrosion effect, can prevent the anti-corrosion layer structure that is used for thermal power plant concrete chimney expansion joint of acid liquid corrosion and sweep of gases, this anti-corrosion layer structure is applied to the expansion joint of thermal power plant's concrete chimney, can prevent acid liquid corrosion and sweep of gases effectively, avoid the expansion joint with the not good influence of the antiseptic effect that brought by difference variation simultaneously, and can guarantee the longer service life of chimney.
The technical solution adopted in the utility model is as follows:
The anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint, the concrete substrate that comprises chimney body, on the concrete substrate of inner wall of stack, be equipped with the first flexible silicon glue-line, the described first flexible silicon glue-line upper berth is provided with the glass layer of cloth, is equipped with the second flexible silicon glue-line on the described glass layer of cloth.
Owing to adopted said structure, on the concrete substrate of chimney body, therefore lay the first flexible silicon glue-line, glass layer of cloth and the second flexible silicon glue-line, the first flexible silicon glue-line and the combination of glass layer of cloth, internal layer as anticorrosive coat, can fully resist the corrosion of various acid solutions, and impermeability and elasticity are arranged; The glass layer of cloth and the second flexible silicon glue-line combination can be resisted washing away of acid solution and flue gas fully, and anti-wear performance is good; Flexible silicon glue-line, glass layer of cloth, flexible silicon glue-line combine, and as the anti-corrosion layer structure at expansion joint, can resist the corrosion of various acid solutions, have good antiseptic property, and good springiness, can change with the variation at expansion joint, and endurance quality might as well.
The anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint, the described first flexible silicon glue-line and the second flexible silicon glue-line all adopt organosilicon to make.
Owing to adopted said structure, layer of silica gel to adopt the elasticity organosilicon to make, make win elastic silica gel layer and the second flexible silicon glue-line all have good Corrosion Protection, thereby can guarantee the xoncrete structure of chimney.
The anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint, the thickness of the described first flexible silicon glue-line and/or the second flexible silicon glue-line is 1.8mm～2.2mm.
Owing to adopted above-mentioned layer of silica gel, make that the thickness of flexible silicon glue-line is 1.8mm～2.2mm, satisfy national standard and industry standard, be beneficial to and promote the use.
The anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint, the thickness of the described first flexible silicon glue-line or the second flexible silicon glue-line is 2mm.
Owing to adopted above-mentioned layer of silica gel, make the flexible silicon glue-line can prevent to resist washing away of acid solution and flue gas effectively, economical with materials guarantees that its corrosion resistance is good again, guarantees service life.
The anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint, described glass layer of cloth adopt the glass cloth of 400g/ ㎡ to make, and its thickness is 0.5mm.
Owing to adopted said structure, adopted the glass cloth of 400g/ ㎡ to make the glass layer of cloth, and its thickness is 0.5mm, can guarantee that the glass layer of cloth combines with the first flexible silicon glue-line and the second flexible silicon glue-line, it arrives etch-proof effect.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
1. the anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint, simple in structure, with low cost, difficulty of construction is low;
2. the anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint can prevent acid liquid corrosion and sweep of gases, and antiseptic property is good;
3. the anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint, good springiness, and can change excellent in durability with the variation at expansion joint;
4. the anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint 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 at concrete chimney of the present utility model expansion joint.
Mark among the figure: 1-concrete substrate, the 2-first flexible silicon glue-line, 3-glass layer of cloth, the 4-second flexible silicon glue-line.
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 at thermal power plant of the present utility model concrete chimney expansion joint, the concrete substrate 1 that comprises chimney body, on the concrete substrate 1 of inner wall of stack, be equipped with the first flexible silicon glue-line 2, be equipped with glass layer of cloth 3 on the described first flexible silicon glue-line 2, be equipped with the second flexible silicon glue-line 4 on the described glass layer of cloth 3, the described first flexible silicon glue-line 2 and the second flexible silicon glue-line 4 all adopt organosilicon to make.The thickness of the described first flexible silicon glue-line 2 and/or the second flexible silicon glue-line (4) is 1.8mm～2.2mm, the thickness of the described first flexible silicon glue-line 2 or the second flexible silicon glue-line 4 is 2mm, described glass layer of cloth 3 adopts the glass cloth of 400g/ ㎡ to make, and its thickness is 0.5mm.
The gross thickness of the anticorrosive coat at thermal power plant of the present utility model concrete chimney expansion joint is 4.5mm, and allow to exist 10% deviation, the thickness that is the glass layer of cloth 3 of described 400g/ ㎡ is 0.5mm ± 10%, the thickness of flexible silicon glue-line 2 is 2mm ± 10%, the thickness of flexible silicon glue-line 4 is 2mm ± 10%, and gross thickness is 4.5mm ± 10%, thereby meet country and industry standard, satisfy the ratio between each layer.
The anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint, simple in structure, with low cost, difficulty of construction is low; Can fully resist the deformation of the expansion joint size height that causes because of difference variation, and impermeability is arranged, reduce maintenance cost, be beneficial to popularization; Can prevent acid liquid corrosion and sweep of gases, antiseptic property is good; Good springiness, and can change excellent in durability with the variation at expansion joint; Can fully resist the corrosion of various acid solutions, and impermeability is arranged, reduce maintenance cost, be beneficial to popularization.
The anti-corrosion layer structure at thermal power plant of the present utility model concrete chimney expansion joint is the anti-corrosion layer structure of the thick second flexible silicon glue-line 4 of the glass layer of cloth 3+2 ㎜ of the thick 400g/ ㎡ of the first thick flexible silicon glue-line 2+0.5 ㎜ of 2mm as the expansion joint, gross thickness 4.5 ㎜.This anti-corrosion layer structure with compare as anticorrosive coat with the titanium plate, corrosion-resistant suitable with wearability, expense is lower; With compare as anticorrosive coat with the foam glass brick layer, corrosion resistance is better, more can satisfy expansion joint self and change with difference variation, expense is lower.With the protective layer of this anticorrosive coat as the expansion joint; by experiment; use in some power plant's success test runs; for example in power plant such as the Huang square rafter village, Yibin power plant, Inner Mongol Golconda power plant of unit; anti-corrosion layer structure of the present utility model; use the thick flexible silicon glue-line of glass layer of cloth+2 ㎜ of the thick flexible silicon glue-line of 2 ㎜+400g/ ㎡ that 0.5 ㎜ is thick, gross thickness 4.5 ㎜ are as the expansion joint anti-corrosion layer structure, 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 (6)
1. the anti-corrosion layer structure at a thermal power plant concrete chimney expansion joint, the concrete substrate (1) that comprises chimney body, it is characterized in that: on the concrete substrate (1) of inner wall of stack, be equipped with the first flexible silicon glue-line (2), be equipped with glass layer of cloth (3) on the described first flexible silicon glue-line (2), be equipped with the second flexible silicon glue-line (4) on the described glass layer of cloth (3).
2. the anti-corrosion layer structure at thermal power plant according to claim 1 concrete chimney expansion joint is characterized in that: the described first flexible silicon glue-line (2) and the second flexible silicon glue-line (4) all adopt organosilicon to make.
3. the anti-corrosion layer structure at thermal power plant according to claim 1 and 2 concrete chimney expansion joint is characterized in that: the thickness of the described first flexible silicon glue-line (2) and/or the second flexible silicon glue-line (4) is 1.8mm～2.2mm.
4. the anti-corrosion layer structure at thermal power plant according to claim 3 concrete chimney expansion joint is characterized in that: the thickness of the described first flexible silicon glue-line (2) or the second flexible silicon glue-line (4) is 2mm.
5. the anti-corrosion layer structure at thermal power plant according to claim 3 concrete chimney expansion joint is characterized in that: described glass layer of cloth (3) adopts the glass cloth of 400g/ ㎡ to make, and its thickness is 0.5mm.
6. according to the anti-corrosion layer structure at claim 1 or 2 or 4 described thermal power plant concrete chimney expansion joints, it is characterized in that: described glass layer of cloth (3) adopts the glass cloth of 400g/ ㎡ to make, and its thickness is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200711293U CN202024345U (en) | 2011-03-17 | 2011-03-17 | Anticorrosive coating structure used for thermal power plant concrete chimney expansion joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200711293U CN202024345U (en) | 2011-03-17 | 2011-03-17 | Anticorrosive coating structure used for thermal power plant concrete chimney expansion joint |
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| CN202024345U true CN202024345U (en) | 2011-11-02 |
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| CN2011200711293U Expired - Lifetime CN202024345U (en) | 2011-03-17 | 2011-03-17 | Anticorrosive coating structure used for thermal power plant concrete chimney expansion joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594859A (en) * | 2020-05-21 | 2020-08-28 | 贵州开磷磷石膏综合利用有限公司 | Corrosion-resistant flue of ardealite |
-
2011
- 2011-03-17 CN CN2011200711293U patent/CN202024345U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594859A (en) * | 2020-05-21 | 2020-08-28 | 贵州开磷磷石膏综合利用有限公司 | Corrosion-resistant flue of ardealite |
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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: 20111102 |