CN220377922U - Invisible repair anticorrosion composite layer for herringbone column of cooling tower and cooling tower - Google Patents
Invisible repair anticorrosion composite layer for herringbone column of cooling tower and cooling tower Download PDFInfo
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- CN220377922U CN220377922U CN202321781849.8U CN202321781849U CN220377922U CN 220377922 U CN220377922 U CN 220377922U CN 202321781849 U CN202321781849 U CN 202321781849U CN 220377922 U CN220377922 U CN 220377922U
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- repair
- cooling tower
- corrosion
- layer
- herringbone column
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- 238000001816 cooling Methods 0.000 title claims abstract description 57
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 239000010410 layer Substances 0.000 claims abstract description 55
- 238000005260 corrosion Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 26
- 239000004568 cement Substances 0.000 claims abstract description 22
- 238000011049 filling Methods 0.000 claims abstract description 21
- 239000002178 crystalline material Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011247 coating layer Substances 0.000 claims abstract description 13
- 230000007797 corrosion Effects 0.000 claims abstract description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003112 inhibitor Substances 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 230000006378 damage Effects 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 5
- 238000005536 corrosion prevention Methods 0.000 claims description 4
- 239000004567 concrete Substances 0.000 abstract description 21
- 239000002344 surface layer Substances 0.000 abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 3
- 239000012466 permeate Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical class [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000736911 Turritella communis Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011376 self-consolidating concrete Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The invisible repair anti-corrosion composite layer comprises a repair body for filling a damaged repair part of a cooling tower herringbone column and an anti-corrosion layer for covering the repair body, wherein the repair body is arranged in the damaged repair part and comprises a water-based polymer rust inhibitor film layer, a cement-based grouting material plugging body and a repair mortar filling body, the surface of the repair body is leveled with the surface of the surrounding area of the damaged repair part, and the anti-corrosion layer comprises an inorganic water-based permeable crystalline material layer and an inorganic permeable waterproof anti-corrosion coating layer. The repair part is flush with the periphery, so that the damaged repair part restores the original contour, the original sectional area of the herringbone column of the cooling tower is reserved to the maximum extent, and the working efficiency of the cooling tower is ensured; the inorganic water-based permeable crystalline material can rapidly permeate and reach the inside of the concrete, various gaps and micro cracks in the repaired part are plugged, a reinforcing steel bar layer is protected, the corrosion resistance is enhanced, the compactness and the structural strength of the surface layer are improved, and the service life of the herringbone column is prolonged.
Description
Technical Field
The utility model relates to the technical field of repair and corrosion prevention of a herringbone column of a cooling tower of a power plant, in particular to a repair and corrosion prevention composite layer of the herringbone column of the cooling tower.
Background
The herringbone columns are concrete columns for supporting the bottom of the cooling tower shell, are generally arranged in a pair of herringbone shape and surround the cooling tower, and form an air inlet channel of the cooling tower between adjacent herringbone columns.
In order to ensure the safe and long-period operation of the herringbone column of the cooling tower, the herringbone column is required to be subjected to structural repair and surface anti-corrosion treatment. In the current cooling tower herringbone column construction process, a commonly used repairing scheme is a repairing scheme adopting a thickened concrete protective layer. The repairing and protecting method is characterized in that concrete is wrapped on one side, two sides or the periphery of the concrete column according to the stress condition of the column to improve the bearing capacity of the structure and strength and rigidity of the column. The new part can be formed by pouring sprayed concrete, self-compacting concrete or cast-in-place concrete, or can be formed by pouring cement-based grouting materials doped with fine stone concrete. The cross-sectional area of the herringbone column can be increased by the existing thickened concrete protective layer repairing mode, so that the load of the herringbone column is greatly increased, the net area of the air inlet of the cooling tower is also affected, and the cooling efficiency of the cooling tower is affected. When the cross-sectional area of the upper part of the herringbone column is larger than that of the lower part, potential safety hazards can also be generated. In addition, the strength difference of the newly poured concrete on the old concrete can cause incompatibility of the coordination stress of the herringbone columns, so that the internal stress is unevenly distributed, and the structural stress can be changed, so that the safety and the stability of the cooling tower are influenced. In addition, when the cooling tower herringbone column is repaired at present, only the integrity and the bearing capacity of the cooling tower herringbone column are considered, and the durability, the safety stability and the cooling efficiency of the cooling tower after repair are rarely considered.
Disclosure of Invention
First, the technical problem to be solved
In view of the defects and shortcomings of the prior art, the utility model provides the invisible repair anti-corrosion composite layer for the herringbone column of the cooling tower, which solves the technical problem that the herringbone column of the cooling tower of the power plant is only provided with a thickened concrete protection layer, ensures the cooling efficiency, simultaneously ensures that the safety and the stability of the cooling tower are not affected, and improves the durability of the herringbone column of the cooling tower.
(II) technical scheme
The technical scheme of the utility model is as follows:
the invisible repair anti-corrosion composite layer for the herringbone column of the cooling tower is characterized by comprising the following components: a repairing body for filling the damaged repairing part of the cooling tower herringbone column and an anti-corrosion layer for covering the repairing body,
the repair body is arranged in the damage repair part and comprises a water-based polymer rust inhibitor film layer, a cement-based grouting material plugging body and a repair mortar filling body, the surface of the repair body is level with the surface of the surrounding area of the damage repair part, and the corrosion-resistant layer comprises an inorganic water-based permeable crystalline material layer and an inorganic permeable waterproof corrosion-resistant coating film layer.
Preferably, the cement-based grouting material plugging body is located below and/or around the repair mortar filling body.
Preferably, the cement-based grouting material plugging body enters and fills holes or cracks with the diameter or width smaller than 2cm in the damaged repair part.
Preferably, the repair mortar filler enters and fills a hole, a crack or a pit with a diameter or a width of more than 2cm in the damaged repair part.
Preferably, the inorganic aqueous infiltration crystalline material layer covers the damage repair sites of the cooling tower herringbone columns.
Preferably, the coverage of the inorganic permeable waterproof and anti-corrosion coating layer is more than or equal to the coverage of the inorganic water-based permeable crystalline material layer (3) to repair the damage.
Preferably, the coverage of the inorganic aqueous infiltration crystalline material layer is more than 2 times of the coverage of the damage repair part of the cooling tower herringbone column.
(III) beneficial effects
The repair part is flush with the periphery, so that the damaged repair part restores the original contour, the original sectional area of the herringbone column of the cooling tower is reserved to the maximum extent, and the working efficiency of the cooling tower is ensured.
The cooling tower herringbone column invisible repairing anti-corrosion composite layer of the utility model uses repairing mortar and cement-based grouting material, grouting, repairing, plugging and densification strengthening are carried out on holes or cracks with smaller size by using cement-based grouting material, and filling and trowelling are carried out on holes, cracks or pits with larger size by using repairing mortar; or uniformly performing grouting repair by cement-based grouting materials on the inner side, and filling the surface layer with mortar to reinforce and repair the damaged part of the herringbone column of the cooling tower; and the repairing mortar is filled after grouting repairing, so that the bonding strength between the repairing mortar and the repairing surface can be increased, the repairing mortar is not easy to fall off, and the repairing mortar has excellent carbonization resistance and freeze-thaw cycle resistance.
In addition, the inorganic water-based permeable crystalline material layer is added on the inner side of the inorganic permeable waterproof anti-corrosion coating layer, part of the inorganic water-based permeable crystalline material can quickly permeate and reach the depth of 5-7cm in the concrete, various gaps and micro cracks in the repaired part are plugged, the reinforcing steel bar layer is protected, the corrosion resistance is enhanced, the surface layer structural compactness and the surface layer structural strength are improved, and the service life of the herringbone column is prolonged.
The outermost side of the utility model is an inorganic permeable waterproof and anticorrosive coating layer which is formed by spraying inorganic permeable waterproof and anticorrosive coating, and compared with organic anticorrosive coating, the coating layer has thin thickness and better high temperature resistance and erosion resistance.
Drawings
Fig. 1 is a schematic view of a cooling tower herringbone column invisible repair corrosion protection composite layer of example 1.
Fig. 2 is a schematic diagram of a cooling tower herringbone column invisible repair corrosion protection composite layer of example 2.
Detailed Description
The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.
Example 1
As shown in fig. 1, a schematic structural diagram of a cooling tower herringbone column invisible repair anticorrosion composite layer comprises a repair body for filling a damaged repair part of the cooling tower herringbone column and an anticorrosion layer for covering the repair body.
The repair body is arranged in the damage repair part D, and sequentially comprises an aqueous polymer rust inhibitor film layer 1, a cement-based grouting material plugging body 22 and a repair mortar filling body 21 from inside to outside, wherein the surface of the repair body is level with the surface of the surrounding area of the damage repair part. The anti-corrosion layer comprises an inorganic water-based permeable crystalline material layer 3 and an inorganic permeable waterproof anti-corrosion coating layer 4.
In the present embodiment, the cement-based grouting material plugging body 22 is closer to the matrix of the breakage repair site D than the repair mortar filling body 21, specifically, the cement-based grouting material plugging body 22 is located below and around the repair mortar filling body 21. The surface of the repair mortar filler 21 is flush with the periphery of the damaged repair site D, so that the original contour is restored.
The cement-based grouting material plugging body 22 is used for filling holes or cracks of the concrete damaged part D with the diameter or width smaller than 2 cm; the repair mortar filler 21 is used for filling holes, cracks, or pits in the damaged portion D of concrete having a diameter or width of 2cm or more.
The aqueous polymer rust inhibitor film layer 1, the cement-based grouting material plugging body 22 and the repair mortar filling body 21 are positioned in the damage repair part D, the surface of the repair body is level with the periphery of the damage repair part D, the inorganic aqueous permeable crystalline material layer 3 and the inorganic permeable waterproof and anti-corrosion coating film layer 4 cover the surface of the repair body and the surface of the periphery area of the damage repair part D, and the two materials are very thin and transparent, so that the two materials or the thickness of the two materials cannot be observed by naked eyes. Therefore, the original sectional area of the herringbone column of the cooling tower is basically kept unchanged, and the working efficiency of the cooling tower is ensured.
The inorganic penetrating waterproof anticorrosive coating layer is, for example, one Ge Bayer water paint with oxidized modified potassium silicate as main component and netted multi-sphere molecular composition as product, and the inorganic component in the paint and the inorganic matter in the matrix react chemically to form new inorganic matter, which is integrated with the matrix and is not easy to fall off. The modified potassium silicate is compatible with various inorganic pigments, so that the original color of the color can be maintained, the curing effect is achieved, and the coating is not easy to fade. Based on the principle, the inorganic permeable coating layer has the characteristics of natural environment protection, water resistance, corrosion resistance, fire resistance, flame retardance, aging resistance, super weather resistance and the like.
The construction sequence of the invisible repair anti-corrosion composite layer of the herringbone column of the cooling tower is as follows:
(1) chiseling to damage the surface layer of the loosened concrete, exposing rust steel bars, checking whether hidden danger exists in adjacent concrete, and timely chiseling the concrete if the loosened or cracked concrete is found;
(2) brushing the aqueous polymer rust inhibitor to form an aqueous polymer rust inhibitor film layer 1 to prevent the exposed steel bars from being corroded continuously; and reinforcing steel bar reinforcing treatment is carried out on the parts with serious corrosion.
(3) After the concrete cracks are cleaned, cement-based grouting material is injected into the concrete in a pressure grouting mode to form a cement-based grouting material plugging body 22, so that the cracks and small holes are plugged quickly.
(4) And filling and leveling by adopting repair mortar until the original contour is restored, so as to form the repair mortar filling body 21.
(5) After the surface of the mortar is dried, spraying an inorganic water-based permeable crystalline material 3 for durability protection to form an inorganic water-based permeable crystalline material layer 3. The inorganic aqueous infiltration crystalline material layer 3 covers the entire cooling tower herringbone column damage repair site D and the surrounding area.
(6) The inorganic permeable waterproof and anticorrosive coating is adopted for carrying out anticorrosive treatment to form an inorganic permeable waterproof and anticorrosive coating layer 4, and the inorganic permeable waterproof and anticorrosive coating layer 4 covers the surface of the inorganic water-based permeable crystalline material layer 3 and the surrounding area thereof.
Example 2
Fig. 2 is a schematic structural diagram of another invisible repair anticorrosive composite layer for a herringbone column of a cooling tower. The present embodiment differs from embodiment 1 in that cement-based grouting material plugs 22 are distributed around the repair mortar filler 21. The construction is characterized in that the repairing mortar is firstly used for filling holes, cracks or pits of the damaged part D of the concrete with the diameter or width of more than 2cm, and then the cement-based grouting material is injected into the part which is not filled and compacted at the periphery in a pressure grouting mode to form a cement-based grouting material plugging body 22, so that small gaps are quickly plugged and compacted, and meanwhile, a structure that the cement-based grouting material plugging body 22 is distributed around the repairing mortar filling body 21 is formed.
In this embodiment, the inorganic aqueous penetrating crystallization material layer 3 covers the entire cooling tower herringbone column damage repair site D and the surrounding area thereof. The inorganic penetrating type waterproof and anticorrosive coating layer 4 covers the inorganic aqueous penetrating crystalline material layer 3, preferably, also covers the surrounding area thereof.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (8)
1. The invisible repair anti-corrosion composite layer for the herringbone column of the cooling tower is characterized by comprising the following components: a repairing body for filling the damaged repairing part of the cooling tower herringbone column and an anti-corrosion layer for covering the repairing body,
the repair body is arranged in the damage repair part and comprises a water-based polymer rust inhibitor film layer (1), a cement-based grouting material plugging body (22) and a repair mortar filling body (21), the surface of the repair body is leveled with the surface of the surrounding area of the damage repair part,
the anti-corrosion layer comprises an inorganic water-based permeable crystalline material layer (3) and an inorganic permeable waterproof anti-corrosion coating layer (4).
2. The cooling tower herringbone column invisible repair anticorrosive composite layer according to claim 1, wherein the cement-based grouting material plugging body is positioned below and/or around the repair mortar filling body.
3. The cooling tower herringbone column invisible repairing corrosion preventing composite layer according to claim 1, wherein the cement-based grouting material plugging body enters and fills holes or cracks with diameters or widths smaller than 2cm in the damaged repairing part.
4. The cooling tower herringbone column invisible repair anticorrosive composite layer according to claim 1, wherein the repair mortar filler enters and fills holes, cracks or pits with a diameter or width of more than 2cm in the damaged repair part.
5. The cooling tower herringbone column invisible repair corrosion protection composite layer according to claim 1, wherein the inorganic aqueous permeable crystalline material layer covers a damaged repair part of the cooling tower herringbone column.
6. The invisible repair and corrosion prevention composite layer for the cooling tower herringbone column according to claim 5 is characterized in that the coverage area of the inorganic permeable waterproof and corrosion prevention coating layer is more than or equal to the coverage area of the inorganic aqueous permeable crystalline material layer (3) to repair damaged parts.
7. The cooling tower herringbone column invisible repair corrosion protection composite layer according to claim 6, wherein the coverage area of the inorganic water-based permeable crystalline material layer is more than 2 times of the coverage area of the damaged repair part of the cooling tower herringbone column.
8. A cooling tower, characterized in that the herringbone column surface of the cooling tower comprises a repair corrosion protection composite layer according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321781849.8U CN220377922U (en) | 2023-07-07 | 2023-07-07 | Invisible repair anticorrosion composite layer for herringbone column of cooling tower and cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321781849.8U CN220377922U (en) | 2023-07-07 | 2023-07-07 | Invisible repair anticorrosion composite layer for herringbone column of cooling tower and cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220377922U true CN220377922U (en) | 2024-01-23 |
Family
ID=89568102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321781849.8U Active CN220377922U (en) | 2023-07-07 | 2023-07-07 | Invisible repair anticorrosion composite layer for herringbone column of cooling tower and cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220377922U (en) |
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2023
- 2023-07-07 CN CN202321781849.8U patent/CN220377922U/en active Active
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