CN220565761U - Cooling tower outer wall durability repair protective layer and cooling tower provided with protective layer - Google Patents
Cooling tower outer wall durability repair protective layer and cooling tower provided with protective layer Download PDFInfo
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- CN220565761U CN220565761U CN202321781850.0U CN202321781850U CN220565761U CN 220565761 U CN220565761 U CN 220565761U CN 202321781850 U CN202321781850 U CN 202321781850U CN 220565761 U CN220565761 U CN 220565761U
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- cooling tower
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- repair
- wall
- coating
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- 230000008439 repair process Effects 0.000 title claims abstract description 55
- 238000001816 cooling Methods 0.000 title claims abstract description 40
- 239000011241 protective layer Substances 0.000 title description 6
- 239000010410 layer Substances 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000004567 concrete Substances 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 25
- 239000002178 crystalline material Substances 0.000 claims abstract description 23
- 238000011049 filling Methods 0.000 claims abstract description 23
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000011247 coating layer Substances 0.000 claims abstract description 11
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000565 sealant Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001424 calcium ion Inorganic materials 0.000 abstract description 2
- 238000002425 crystallisation Methods 0.000 abstract description 2
- 230000008025 crystallization Effects 0.000 abstract description 2
- 239000012466 permeate Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 5
- 230000001680 brushing effect Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model relates to a durable repair protection layer for the outer wall of a cooling tower, which comprises a mortar filling repair layer, a water-based permeable crystallization material layer and an acrylic coating layer which are sequentially arranged from the inner side to the outer side. The utility model comprises the steps of coating inorganic water-based permeable crystalline material and then coating acrylic acid paint after mortar filling repair is carried out on the repair part of the outer wall of the cooling tower, wherein the inorganic water-based permeable crystalline material can permeate into the concrete of the mortar filling repair layer by 5-7cm and form C-S-H gel with calcium ions in the concrete, so that self-closing of capillary holes within a certain depth range is realized, a long-acting self-repairing function is realized on cracks below 0.2mm newly generated on the repair part, a compact layer is formed, the surface strength of the repair part is improved, the problems of cracks and crack extension in the concrete of the repair part are prevented, the durability is prolonged, and the service life of the cooling tower is prolonged.
Description
Technical Field
The utility model relates to the technical field of concrete building repair construction.
Background
Reinforced concrete is a porous heterogeneous material, which is a solid, liquid and gas three-phase concurrent building material composed of coarse aggregate, sand and cementing material, and a large number of interface areas and bubble aggregation areas exist in the reinforced concrete after mixing, and discontinuous microcracks are formed after forming. The pores provide channels for the invasion of foreign matters, and carbon dioxide, water, sulfate and chloride ions in the air enter the interior of the concrete through the pores and react with the degradation of the concrete, so that the durability of the concrete is obviously reduced. The outer wall of the cooling tower is in a special thin layer structure, and the degradation problem of structural concrete is aggravated due to the high-temperature steam, wind erosion and ultraviolet irradiation environment. The traditional method is that after the defect repair is finished, organic paint such as acrylic acid is directly coated on the surface of the repaired part to form a protective film on the concrete surface, so that the corrosion of various external degradation factors is isolated, the protection effect is achieved, and the durability of the cooling tower is improved. However, the protective life of the coating is shorter, generally about 2-3 years, and the coating only stays on the surface of the concrete for protecting the concrete, so that the coating cannot prevent and control cracks and crack extension in the concrete. And the organic coating has poor corrosion resistance and poor long-term durability to long-term ultraviolet irradiation environment.
Disclosure of Invention
First, the technical problem to be solved
In view of the above-mentioned drawbacks and shortcomings of the prior art, the present utility model provides a durable repair protection layer for an outer wall of a cooling tower, which solves the technical problem of poor durability of the existing repair part.
(II) technical scheme
The technical scheme of the utility model is as follows:
a durable repair protection layer for the outer wall of a cooling tower comprises a mortar filling repair layer, an inorganic water-based permeable crystalline material layer and an acrylic coating layer which are sequentially arranged on the outer wall substrate of the cooling tower from the inner side to the outer side.
According to the preferred embodiment of the utility model, the inner side of the mortar filling repair layer is also provided with an anti-corrosion material coating.
According to the preferred embodiment of the utility model, a concrete sealant coating is also arranged between the mortar filling repair layer and the anticorrosive material coating.
According to the preferred embodiment of the utility model, the minimum thickness of the mortar filling repair layer is not less than 6mm, and the minimum repair thickness of the exposed reinforcing steel bar at the position is not less than 12mm.
According to a preferred embodiment of the present utility model, the acrylic coating layer has a thickness of 60 to 80 μm.
According to another aspect of the utility model, the outer wall of the cooling tower is provided with any one of the durable repair protection layers described above.
According to the preferred embodiment of the utility model, the inorganic water-based permeable crystalline material layer covers the damage repair part of the outer wall of the cooling tower, and the coverage area of the inorganic water-based permeable crystalline material layer is 2-100 times of that of the damage repair part of the outer wall of the cooling tower; the coverage of the acrylic acid coating layer is more than or equal to that of the inorganic water-based permeable crystalline material layer.
According to the preferred embodiment of the utility model, the inorganic water-based permeable crystalline material layer is made of nano modified silicate water solution permeable crystalline material purchased in the market or independently developed and produced by the environmental protection engineering limited company of sandisk, beijing.
(III) beneficial effects
The utility model carries out the repair of large defects by arranging the mortar filling repair layer at the repair part of the outer wall of the cooling tower, and forms a durable protective layer by coating inorganic water-based permeable crystalline material and acrylic coating. The inorganic water-based permeable crystalline material can permeate 5-7cm into the concrete of the mortar filling repair layer, and form C-S-H gel with calcium ions in the concrete, so that self-closing of capillary holes within a certain depth range is realized, and the inorganic water-based permeable crystalline material has a long-acting self-repairing function on cracks below 0.2mm newly generated in the repair part, so that a compact layer is formed, the surface strength of the repair part is improved, the problems of cracks and crack extension in the concrete of the repair part are prevented, the durability is prolonged, and the service life of a cooling tower is prolonged.
According to the utility model, mortar filling, repairing and trowelling are carried out on the damaged part of the local pit, a large-area coating machine water-based permeable crystalline material layer and an acrylic coating layer are arranged on the outer side, and each repairing and maintaining of the cooling tower can be maintained for at least 2.5-3 years, so that the durability of the high concrete of the cooling tower can be integrally improved, and comprehensive durable protection is carried out on the concrete on the outer wall of the cooling tower from inside to outside in an all-around manner.
Drawings
FIG. 1 is a schematic view of a durable repair protection layer for an outer wall of a cooling tower according to embodiment 1 of the present utility model.
FIG. 2 is a schematic view of a durable repair protection layer for an outer wall of a cooling tower according to embodiment 2 of the present utility model.
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, the durable repair protection layer for the outer wall of the cooling tower comprises an anticorrosive material coating 1, a mortar filling repair layer 2, an inorganic water-based permeable crystalline material layer 3 and an acrylic coating layer 4 which are sequentially arranged from the inner side to the outer side. The minimum thickness of the mortar filling repair layer 2 is not less than 6mm, and the minimum repair thickness of the exposed reinforcing steel bar at the position is not less than 12mm; the thickness of the acrylic coating layer 4 is 60 to 80 μm.
The construction method for repairing and protecting the outer wall of the cooling tower comprises the following steps:
(1) and (3) base layer cleaning: and cleaning the whole body by using a high-pressure water gun before construction. For dirt which cannot be washed away by the high-pressure water gun, then, using methods such as a steel wire brush, an electric steel wire wheel power polishing tool and the like, thoroughly removing pollutants such as weak mortar, sharp corners, scraps and the like on the surface of the concrete and other attachments, and ensuring that a repairing base surface is smooth, free of greasy dirt, dust and other impurities and free of clear water on the construction surface.
(2) And (3) corrosion prevention: and (3) after the base layer cleaning treatment in the step (1) is finished, brushing the anticorrosive material coating 1 within 12 hours. The anticorrosive material coating 1 is specifically a basalt flake water-based anticorrosive paint film.
(3) And (3) filling and repairing mortar: for repairing the parts with pitting, cracking, hollowing, honeycomb pitting and the like on the surface, firstly chiseling out concrete with loose periphery and gaps, then filling and repairing with repair mortar, and finally trowelling the surface to form the mortar filling and repairing layer 2.
(4) Spraying inorganic water-based permeable crystallization material: and calculating the consumption of the inorganic water-based permeable crystalline material according to the construction area, uniformly spraying until the inorganic water-based permeable crystalline material is used up, airing and curing to form the inorganic water-based permeable crystalline material layer 3. Spraying according to the dosage of 250ml-350ml per square meter. Wherein, the inorganic water-based permeable crystalline material layer 3 covers the damaged repair part of the outer wall of the cooling tower, and the coverage of the inorganic water-based permeable crystalline material layer is 2-100 times of that of the damaged repair part of the outer wall of the cooling tower.
(5) Acrylic paint was used: ensuring the drying of the base layer, brushing the paint on the treated base material by a brush, generally brushing for two to three times according to the requirement of the use environment, and carrying out the next working procedure after each time of film coating drying (more than 24 hours apart), wherein the next brushing direction is vertical to the last direction (at 90 degrees) so as to achieve the purpose of full coating, and the thickness of the acrylic acid film coating layer 4 is preferably 60-80 mu m.
The acrylic acid coating is a surface film-forming material, and when the acrylic acid coating is used for the outer wall of a cooling tower, various colors can be prepared according to requirements, so that the acrylic acid coating is strong in aesthetic property and good in decoration property; the coating has good weather resistance, and can resist ultraviolet rays and aging better.
The coverage of the acrylic coating layer 4 is more than or equal to that of the inorganic water-based permeable crystalline material layer 3.
Example 2
As shown in fig. 2, another durable repair protection layer for the outer wall of the cooling tower according to the present utility model comprises a concrete sealant coating 5 between the mortar filling repair layer 2 and the anticorrosive material coating 1. The concrete sealant is firstly coated on a wash base surface before mortar filling and repairing, smaller holes and other surface defects are repaired and blocked, and after the concrete sealant coating 5 is formed, mortar is used for filling and repairing to be smooth.
Concrete sealers, also called cement sealers, e.g. solid stonersThe IN grouting liquid has the principle that a compact protective layer is formed through various action mechanisms such as chemical reaction, filling and lubrication, so that the strength, hardness and compactness of concrete and cement are improved, and dust on the surface, the permeability of corrosive media and pollutants are prevented. The concrete sealing agent can be a commercially available product. The cement sealing agent is used for blocking smaller holes before the mortar is filled and repaired, so that a flat surface can be obtained after the mortar is filled and repaired.
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 (7)
1. The durable repair protection layer for the outer wall of the cooling tower is characterized by comprising a mortar filling repair layer (2), an inorganic water-based permeable crystalline material layer (3) and an acrylic coating layer (4) which are sequentially arranged on the outer wall substrate of the cooling tower from the inner side to the outer side.
2. The durable repair protection layer for the outer wall of the cooling tower according to claim 1, wherein the inner side of the mortar filling repair layer is further provided with an anti-corrosion material coating (1).
3. The durable repair protection layer for the outer wall of the cooling tower according to claim 2, wherein a concrete sealant coating (5) is further arranged between the mortar filling repair layer and the anticorrosive material coating.
4. The durable repair protection layer for the outer wall of the cooling tower according to claim 1, wherein the minimum thickness of the mortar filling repair layer is not less than 6mm, and the minimum repair thickness of the exposed steel bars of the base of the outer wall of the cooling tower is not less than 12mm.
5. The cooling tower outer wall durable repair protecting layer according to claim 1, wherein the thickness of the acrylic coating layer is 60-80 μm.
6. The cooling tower outer wall durability repair protection layer according to claim 1, wherein the inorganic aqueous permeable crystalline material layer covers the cooling tower outer wall damage repair portion, and the coverage area of the inorganic aqueous permeable crystalline material layer is 2-100 times that of the cooling tower outer wall damage repair portion; the coverage of the acrylic acid coating layer is more than or equal to that of the inorganic water-based permeable crystalline material layer.
7. A cooling tower, characterized in that the outer wall of the cooling tower is provided with a durable repair protection layer according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321781850.0U CN220565761U (en) | 2023-07-07 | 2023-07-07 | Cooling tower outer wall durability repair protective layer and cooling tower provided with protective layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321781850.0U CN220565761U (en) | 2023-07-07 | 2023-07-07 | Cooling tower outer wall durability repair protective layer and cooling tower provided with protective layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220565761U true CN220565761U (en) | 2024-03-08 |
Family
ID=90101859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321781850.0U Active CN220565761U (en) | 2023-07-07 | 2023-07-07 | Cooling tower outer wall durability repair protective layer and cooling tower provided with protective layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220565761U (en) |
-
2023
- 2023-07-07 CN CN202321781850.0U patent/CN220565761U/en active Active
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