CN101377085B - Water-proof method of cold-storage groove - Google Patents
Water-proof method of cold-storage groove Download PDFInfo
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- CN101377085B CN101377085B CN2008101109190A CN200810110919A CN101377085B CN 101377085 B CN101377085 B CN 101377085B CN 2008101109190 A CN2008101109190 A CN 2008101109190A CN 200810110919 A CN200810110919 A CN 200810110919A CN 101377085 B CN101377085 B CN 101377085B
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Abstract
The present invention relates to a water-repelling method of a cold storage tank. The method includes the following steps: (1) the inner wall and the base layer surface of the cold storage tank are burnished or filled, so that the inner wall and the base layer surface can form a leveling layer; (2) polyurethane rigid foam is sprayed on the surface of the leveling layer, and an insulating layer isformed after spraying is finished; (3) carbamate water repellent is sprayed on the surface of the insulating polyurethane rigid foam layer, and a membrane-like water-proof layer is formed after solidification; (4) before the carbamate water repellent is solidified, adhesive cement is smeared on the surface of the carbamate water repellent; (5) polyurea water repellent is sprayed on the surface ofthe adhesive cement. Primer and polyurethane water repellent are sprayed between the leveling layer and the insulating polyurethane rigid foam layer as well. The water-repelling method can effectively prevent the cold storage tank from leaking water and improve water-proof and heat-insulating properties and also can avoid the formation of pinholes or air holes on the surfaces of the water repellents, and thereby, not only the construction procedure is simplified, but also the construction period is shortened.
Description
Technical field
The present invention relates to the waterproof technique field, especially a kind of waterproof method of cold-storage groove.
Background technology
Cold-storage groove as a kind of be the equipment of building cooling, mainly be divided into ice cold-storage groove and water cold-storage groove.Its inside of existing ice cold-storage groove is filled with a large amount of cooling mediums and ice hockey, cooling medium and ice hockey mainly are to utilize the low ebb electricity to move in cold-storage groove and cool off, according to the difference of time period, thereby the cold air in the cold-storage groove circulates in each layer of air carrier pipe by bittern and freezes.Owing to be filled with a large amount of liquid cooling medium and ice hockey in cold-storage groove inside, so the inwall of cold-storage groove need have extraordinary waterproof and effect of heat insulation.
Fig. 1 is the sectional drawing of existing a kind of cold-storage groove waterproof construction, is to be provided with two- layer boundary mortar 1b and 1d and insulation agent 1c with water-proof function successively in the inner wall surface that is made of concrete 1a.Insulation agent 1c is arranged between boundary mortar 1b and the 1d, and solidifying back formation thickness is the isolation layer of 100mm, and this isolation layer has characteristics such as heat insulation, soundproof and fire-resistant.Boundary mortar 1b is the bottom waterproofing course of integral waterproofing structure, and directly contacts with the surface of concrete 1a, and boundary mortar 1d then is arranged at the top, is the top layer waterproofing course of integral waterproofing structure.Boundary mortar 1b integral body is divided into 5 times and carries out construction operation, except that the 1st time, once solidify the construction that just can carry out next time fully before all needing before each construction operation to wait, and the time of each mortar setting and hardening is 12-18 hour, cause that boundary mortar 1b integral body solidifies for up to 5 days.The construction sequence of boundary mortar 1d and boundary mortar 1b are basic identical, uniquely different are, in order to strengthen whole water-proof function, carry out construction operation 7 times and can finish just boundary mortar 1d is divided into as its integral body of top layer waterproofing course.Because the time of boundary mortar 1b and 1d setting and hardening is long, therefore the situation in construction time limit takes place to prolong easily.In addition, again because the factor of the physical characteristic that boundary mortar itself is had, when construction along with temperature reduces, the phenomenon that glue falls also can take place in the boundary mortar behind the setting and hardening, especially in the winter time, in order to shorten the setting time of boundary mortar, also need in work progress, adopt ancillary services such as unit heater, thereby also increase the cost of construction.
Fig. 2 is the sectional drawing of the another kind of waterproof construction of existing cold-storage groove, be leveling layer 11 to be set at inwall that constitutes by concrete 10 and substrate surface, put down auxilliary hard-foam polyurethane 12, priming paint 13, polyureas 14, polyurethane 15 and polyureas 16 then on leveling layer 11 surfaces successively, thereby make overall structure have waterproof and heat insulation effect.If aperture or crackle appear in the surface of leveling layer 11, hard-foam polyurethane 12 can't be filled aperture or crackle, can only cover its uper side surface, thereby make between aperture or crackle leveling layer 11 and the hard-foam polyurethane 12 and form air layer, after this air layer and hard-foam polyurethane 12 react, cause hard-foam polyurethane 12 surfaces to form pin hole and pore, and the part that forms pin hole and pore can not be brought into play the due performance of waterproof agent, not only lose water-proof function, also reduce the heat-proof quality of insulation agent greatly.
Summary of the invention
In order to solve the problem of above-mentioned existence, a kind of providing is provided can prevents effectively that cold-storage groove from leaking, improve waterproof and heat-proof quality, and can avoid the waterproof agent surface to form the waterproof method of a kind of cold-storage groove of pin hole or pore.
For achieving the above object, the invention provides a kind of waterproof method of cold-storage groove, may further comprise the steps:
(1), with the inwall of cold-storage groove and substrate surface utilization polishing or the method for filling, make inwall and substrate surface formation leveling layer;
(2), spray hard-foam polyurethane on the leveling layer surface, formation hard-foam polyurethane insulation layer after spraying finishes;
(3), at hard-foam polyurethane insulation layer surface spraying amino formic acid esters waterproof agent, solidify the waterproofing course that the back forms the epithelium shape;
(4), before the carbamate waterproof agent solidifies with rubber cement attached to wall;
(5), the polyurea water-proof agent is sprayed at the surface of rubber cement.
Also be coated with prime coat and polyurethane water-proof agent between described leveling layer and the described hard-foam polyurethane insulation layer, described polyurethane water-proof agent is sprayed at the uper side surface of described prime coat.
The first floor thickness of described hard-foam polyurethane insulation layer is 10mm, and the whole gross thickness after repeatedly spraying is 50mm.
Described carbamate waterproof agent is a liquid condition, and solidifying back formation thickness is the epithelium shape waterproofing course of 1mm.
Described polyurea water-proof agent layer is divided into twice and sprays, and the thickness of first floor is 0.6mm, and the whole gross thickness after twice spraying is 2mm.
The thickness of described mucilage layer is 0.2mm.
Described polyurethane water-proof agent is made up of host compound and hardener, and the proportioning between described host compound and the hardener is 1: 3, and described polyurethane water-proof agent is solidified the back and formed waterproofing course.
Described host compound is an isocyanate compound.
Compared with prior art, the present invention has the following advantages:
The invention provides a kind of waterproof method of cold-storage groove, its construction sequence is: (1), with the inwall of cold-storage groove and substrate surface utilization polishing or the method for filling makes inwall and substrate surface formation leveling layer; (2), spray hard-foam polyurethane on the leveling layer surface, formation insulation layer after spraying finishes; (3), at hard-foam polyurethane insulation layer surface spraying amino formic acid esters waterproof agent, solidify the back and form epithelium shape waterproofing course; (4), before the carbamate waterproof agent solidifies, rubber cement is attached to its surface; (5), the polyurea water-proof agent is sprayed at the rubber cement surface.Also be coated with prime coat and polyurethane water-proof agent between leveling layer and the hard-foam polyurethane insulation layer, the polyurethane water-proof agent is made up of host compound and hardener, and solidifies back formation waterproofing course.The present invention can prevent effectively that the moisture of Ice Storage Tank external surface infiltration and moisture from producing Ice Storage Tank dewfall phenomenon and drainage, improve waterproof and heat-proof quality, but also can avoid the waterproof agent surface to form pin hole, again because simplified the step of waterproof construction, also shortened the cycle of construction.
Description of drawings
Fig. 1 is the sectional drawing of existing cold-storage groove waterproof construction;
Fig. 2 is the sectional drawing of the another kind of waterproof construction of existing cold-storage groove;
Fig. 3 is the sectional drawing of cold-storage groove waterproof method of the present invention;
Fig. 4 is the sectional drawing of another embodiment of cold-storage groove waterproof method of the present invention.
The critical element symbol description is as follows:
12 hard-foam polyurethanes, 14 polyureas, 15 hard-foam polyurethanes
16 hard-foam polyurethanes, 20 cold-storage grooves, 21 concrete structures
22 prime coats, 23 hard-foam polyurethane insulation layers, 24 carbamate waterproof agents
The 27 polyurethane water-proof agent of 25 mucilage layers, 26 polyurea water-proof agent layers
The specific embodiment
Fig. 3 is the sectional drawing of cold-storage groove waterproof construction of the present invention, comprises cold-storage groove 20, concrete structure 21, hard-foam polyurethane insulation layer 23, carbamate waterproof agent 24, mucilage layer 25 and polyurea water-proof agent layer 26.With the inner surface of the inwall of concrete structure 21 and basic unit reason owing to construction, cause its surface to form irregular matsurface, it is polished or processing such as filling by cement paste and epoxy cement or other instruments, and then after by dust catcher the materials such as dust on surface being removed, make inwall and substrate surface form horizontal leveling layer.Uniformly spraying density on the surface of leveling layer is the hard-foam polyurethane insulation layer 23 of 60kg/m3, and the first floor hardness of this hard-foam polyurethane insulation layer 23 is 10mm, and the whole gross thickness after repeatedly spraying is 50mm.After the insulation layer spraying finishes, with carbamate waterproof agent 24 flat surfaces of assisting at insulation layer, the carbamate waterproof agent is liquid, solidifying the back is the waterproofing course of 1mm at the surface of insulation layer formation thickness, the carbamate waterproof agent can fill and cover pore or pin hole that the hard-foam polyurethane insulation layer surface forms, makes insulation layer can play heat insulation effect effectively.Before waterproof agent does not solidify, mucilage layer 25 is attached to the surface of waterproof agent, the thickness of this mucilage layer 25 is 0.2mm.Thereby insulation layer is mutually bonding with mucilage layer, thereby realized the water-proof function first time of cold-storage groove by waterproof agent.Because waterproof agent can fill and cover pore or pin hole that insulation layer surface forms, cause the surface of waterproof agent layer smooth inadequately, after mucilage layer is covered in the waterproof agent layer, can fill up the coarse place of waterproof agent laminar surface, smooth effect has also been played on its surface.Also be attached with polyurea water-proof agent layer 26 on the surface of mucilage layer 25, this polyurea water-proof agent layer 26 is the follow-up basic unit of mucilage layer 25, polyurea water-proof agent layer 26 is divided into twice and sprays, the thickness of first floor is 0.6mm, whole gross thickness after twice spraying is 2mm, after treating that waterproof agent solidifies, thereby the waterproof construction of finishing cold-storage groove is operated.The waterproof film that forms behind polyurea water-proof agent layer 26 setting and hardening, characteristics with abrasion resistance, thermal insulation, chemical resistance and durability, especially for the waterproof corrosion protection spraying of concrete structure or the corrosion protection spraying of steel work, and satisfy the chemical-resistant requirement, can use preventing the pollution of the environment to be purpose, help the use of the waterproof construction in the cold-storage groove.
Fig. 4 is another embodiment sectional drawing of cold-storage groove waterproof construction of the present invention, mainly comprises prime coat 22 and polyurethane water-proof agent 27.With the inner surface of the inwall of concrete structure 21 and basic unit reason owing to construction, cause its surface to form irregular matsurface, it is polished or processing such as filling by cement paste and epoxy cement or other instruments, and then after by dust catcher the materials such as dust on surface being removed, make inwall and substrate surface form horizontal leveling layer.Spray prime coat 22 and polyurethane water-proof agent 27 on the surface of this leveling layer successively, and then spray hard-foam polyurethane insulation layer 23, carbamate waterproof agent 24, mucilage layer 25 and polyurea water-proof agent layer 26 successively.Prime coat 25 plays the function of adhesive agent, makes polyurethane water-proof agent 31 can fully be attached to the inner surface of the concrete structure 21 after polishing.Polyurethane water-proof agent 27 is that the host isocyanate compound mixes composition with the auxiliary agent hardener, and the proportioning ratio between host and the auxiliary agent is 1: 3, also forms waterproofing course behind polyurethane water-proof agent 27 setting and hardenings.After prime coat 22 surfaces are split into waterproofing course and can prevent that moisture or moisture are by concrete appearance infiltration, contact with the hard-foam polyurethane insulation layer 23 that plays the insulation agent function, even cold-storage groove is installed on outdoor or underground, also can prevent the reduction of cold-storage groove heat-proof quality.
The job practices of cold-storage groove waterproof method of the present invention may further comprise the steps:
(1), with the inwall of cold-storage groove and substrate surface utilization polishing or the method for filling, make inwall and substrate surface formation leveling layer;
(2), spray hard-foam polyurethane on the leveling layer surface, formation hard-foam polyurethane insulation layer after spraying finishes;
(3), at hard-foam polyurethane insulation layer surface spraying amino formic acid esters waterproof agent, solidify the waterproofing course that the back forms the epithelium shape;
(4), before the carbamate waterproof agent solidifies with rubber cement attached to wall;
(5), the polyurea water-proof agent is sprayed at the surface of rubber cement.
Also be coated with prime coat and polyurethane water-proof agent between leveling layer and described hard-foam polyurethane insulation layer, the polyurethane water-proof agent is sprayed at the uper side surface of prime coat.
Embodiment 1
After the employing dust catcher removings such as dust with the Ice Storage Tank inner wall surface, test, can carry out next step engineering when having only Polypropylence Sheet inside the dewfall phenomenon not occur at concrete surface attachment Polypropylence Sheet.At this moment at materials such as concrete surface attachment epoxy resin, hard-foam polyurethane resin, aggregation cement pastes bubble, jog, the crackle of concrete surface are filled, make concrete surface smooth, thereby form leveling layer.Uniformly spraying density on the surface of leveling layer is the hard-foam polyurethane insulation layer of 60kg/m3, and the first floor hardness of hard-foam polyurethane insulation layer is 10mm, and the whole gross thickness after repeatedly spraying is 50mm.Spraying is sprayed on insulation layer surface with the carbamate waterproof agent after finishing, and pin hole or pore that insulation layer surface forms are filled, and the thickness after this waterproof agent solidifies is the epithelium shape waterproofing course of 1mm.After before carbamate waterproof agent sclerosis, rubber cement being attached to its surface, again polyurea water-proof agent layer is sprayed at the surface of rubber cement, polyurea water-proof agent layer is divided into twice and sprays, the thickness of first floor is 0.6mm, whole gross thickness after twice spraying is 2mm, after treating that waterproof agent solidifies, thereby the waterproof construction of finishing cold-storage groove is operated.
Embodiment 2
After the employing dust catcher removings such as dust with the Ice Storage Tank inner wall surface, test, can carry out next step engineering when having only Polypropylence Sheet inside the dewfall phenomenon not occur at concrete surface attachment Polypropylence Sheet.At this moment at materials such as concrete surface attachment epoxy resin, hard-foam polyurethane resin, aggregation cement pastes bubble, jog, the crackle of concrete surface are filled, make concrete surface smooth, thereby form leveling layer.Behind the prime coat about the surface of leveling layer spraying 0.2mm, the polyurea water-proof agent is attached to the surface of prime coat, treat its setting and hardening after, utilize the pin hole detector that its surperficial pin hole is repaired.After modification is finished, be the hard-foam polyurethane insulation layer of 60kg/m3 with density, the first floor hardness of hard-foam polyurethane insulation layer is 10mm, and the whole gross thickness after repeatedly spraying is 50mm.Spraying is sprayed on insulation layer surface with the carbamate waterproof agent after finishing, and pin hole or pore that insulation layer surface forms are filled, and the thickness after this waterproof agent solidifies is the epithelium shape waterproofing course of 1mm.After before carbamate waterproof agent sclerosis, rubber cement being attached to its surface, again polyurea water-proof agent layer is sprayed at the surface of rubber cement, polyurea water-proof agent layer is divided into twice and sprays, the thickness of first floor is 0.6mm, whole gross thickness after twice spraying is 2mm, after treating that waterproof agent solidifies, thereby the waterproof construction of finishing cold-storage groove is operated.
Summation to sum up, the present invention can prevent effectively that the moisture of Ice Storage Tank external surface infiltration and moisture from producing Ice Storage Tank dewfall phenomenon and drainage, improve waterproof and heat-proof quality, but also can avoid the waterproof agent surface to form pin hole, because simplified the step of waterproof construction, also shortened the cycle of construction again.
Only the above person only is preferred embodiment of the present invention, is familiar with the professional person of this skill such as. after understanding technological means of the present invention, natural energy is changed under instruction of the present invention according to the needs of reality.Therefore all equal variation and modifications of being done according to the present patent application claim once should still belong in the scope that patent of the present invention contains.
Claims (8)
1. the waterproof method of a cold-storage groove is characterized in that, may further comprise the steps:
(1), with the inwall of cold-storage groove and substrate surface utilization polishing or the method for filling, make inwall and substrate surface formation leveling layer;
(2), spray hard-foam polyurethane on the leveling layer surface, formation hard-foam polyurethane insulation layer after spraying finishes;
(3), at hard-foam polyurethane insulation layer surface spraying amino formic acid esters waterproof agent, solidify the waterproofing course that the back forms the epithelium shape;
(4), before the carbamate waterproof agent solidifies with rubber cement attached to wall;
(5), the polyurea water-proof agent is sprayed at the surface of rubber cement.
2. the waterproof method of a kind of cold-storage groove as claimed in claim 1, it is characterized in that, also be coated with prime coat and polyurethane water-proof agent between described leveling layer and described hard-foam polyurethane insulation layer, described polyurethane water-proof agent is sprayed at the uper side surface of described prime coat.
3. the waterproof method of a kind of cold-storage groove as claimed in claim 1 is characterized in that, the first floor thickness of described hard-foam polyurethane insulation layer is 10mm, and whole gross thickness is 50mm after repeatedly spraying.
4. the waterproof method of a kind of cold-storage groove as claimed in claim 1 is characterized in that, described carbamate waterproof agent is a liquid condition, and solidifying back formation thickness is the epithelium shape waterproofing course of 1mm.
5. the waterproof method of a kind of cold-storage groove as claimed in claim 1 is characterized in that, described polyurea water-proof agent layer is divided into twice and sprays, and the thickness of first floor is 0.6mm, and gross thickness whole after twice spraying is 2mm.
6. the waterproof method of a kind of cold-storage groove as claimed in claim 1 is characterized in that, the thickness of described mucilage layer is 0.2mm.
7. the waterproof method of a kind of cold-storage groove as claimed in claim 2, it is characterized in that, described polyurethane water-proof agent is made up of host compound and hardener, and the proportioning between described host compound and the hardener is 1: 3, and described polyurethane water-proof agent is solidified the back and formed waterproofing course.
8. the waterproof method of a kind of cold-storage groove as claimed in claim 7 is characterized in that, described host compound is an isocyanate compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101109190A CN101377085B (en) | 2008-06-16 | 2008-06-16 | Water-proof method of cold-storage groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101109190A CN101377085B (en) | 2008-06-16 | 2008-06-16 | Water-proof method of cold-storage groove |
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| Publication Number | Publication Date |
|---|---|
| CN101377085A CN101377085A (en) | 2009-03-04 |
| CN101377085B true CN101377085B (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101109190A Expired - Fee Related CN101377085B (en) | 2008-06-16 | 2008-06-16 | Water-proof method of cold-storage groove |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631482B (en) * | 2014-12-19 | 2017-02-22 | 杭州国电能源环境设计研究院有限公司 | Raft foundation chilled water storage device and method for conducting chilled water storage through raft foundation |
| CN111578569A (en) * | 2020-05-12 | 2020-08-25 | 北京晟翼佳工程技术有限公司 | Waterproof heat-insulation construction process for ice storage tank |
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- 2008-06-16 CN CN2008101109190A patent/CN101377085B/en not_active Expired - Fee Related
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Granted publication date: 20101117 Termination date: 20170616 |