CN104591411B - A kind of corrosion-proofing and antisludging method of aluminum plate type cold exchange device - Google Patents
A kind of corrosion-proofing and antisludging method of aluminum plate type cold exchange device Download PDFInfo
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- CN104591411B CN104591411B CN201410814449.1A CN201410814449A CN104591411B CN 104591411 B CN104591411 B CN 104591411B CN 201410814449 A CN201410814449 A CN 201410814449A CN 104591411 B CN104591411 B CN 104591411B
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000005260 corrosion Methods 0.000 claims abstract description 51
- -1 octadecyl glucosides Chemical class 0.000 claims abstract description 50
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 47
- 230000007797 corrosion Effects 0.000 claims abstract description 47
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 34
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims abstract description 31
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229920001577 copolymer Polymers 0.000 claims abstract description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 235000013877 carbamide Nutrition 0.000 claims abstract description 14
- GUPPESBEIQALOS-UHFFFAOYSA-L calcium tartrate Chemical compound [Ca+2].[O-]C(=O)C(O)C(O)C([O-])=O GUPPESBEIQALOS-UHFFFAOYSA-L 0.000 claims abstract description 13
- 235000011035 calcium tartrate Nutrition 0.000 claims abstract description 13
- 229930182478 glucoside Natural products 0.000 claims abstract description 13
- 235000011187 glycerol Nutrition 0.000 claims abstract description 13
- UIUXUFNYAYAMOE-UHFFFAOYSA-N methylsilane Chemical compound [SiH3]C UIUXUFNYAYAMOE-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920000193 polymethacrylate Polymers 0.000 claims abstract description 13
- POJWUDADGALRAB-UHFFFAOYSA-N allantoin Chemical compound NC(=O)NC1NC(=O)NC1=O POJWUDADGALRAB-UHFFFAOYSA-N 0.000 claims abstract description 12
- POJWUDADGALRAB-PVQJCKRUSA-N Allantoin Natural products NC(=O)N[C@@H]1NC(=O)NC1=O POJWUDADGALRAB-PVQJCKRUSA-N 0.000 claims abstract description 6
- 229960000458 allantoin Drugs 0.000 claims abstract description 6
- 239000001427 calcium tartrate Substances 0.000 claims abstract description 5
- 239000011574 phosphorus Substances 0.000 claims description 33
- 229910052698 phosphorus Inorganic materials 0.000 claims description 33
- 239000002455 scale inhibitor Substances 0.000 claims description 25
- 239000000498 cooling water Substances 0.000 claims description 18
- FWFUWXVFYKCSQA-UHFFFAOYSA-M sodium;2-methyl-2-(prop-2-enoylamino)propane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(C)(C)NC(=O)C=C FWFUWXVFYKCSQA-UHFFFAOYSA-M 0.000 claims description 17
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 15
- 239000000839 emulsion Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 12
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 12
- 239000000470 constituent Substances 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 5
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 230000000116 mitigating effect Effects 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 230000005764 inhibitory process Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- JMTIXSZQYHAMLY-UHFFFAOYSA-N [P].[Zn] Chemical compound [P].[Zn] JMTIXSZQYHAMLY-UHFFFAOYSA-N 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000007980 azole derivatives Chemical class 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N methyl monoether Natural products COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- DCEMCPAKSGRHCN-UHFFFAOYSA-N oxirane-2,3-dicarboxylic acid Chemical compound OC(=O)C1OC1C(O)=O DCEMCPAKSGRHCN-UHFFFAOYSA-N 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The corrosion-proofing and antisludging method that the invention discloses a kind of aluminum plate type cold exchange device, belongs to water treatment field. the corrosion inhibiting and descaling agent of using in the present invention is by 20-30 part calcium tartrate, 10-20 part octadecyl glucosides, 8-12 part BTA, two (methylol) imidazolidinyl ureas of 3-5 part, 15-20 part methyl-monosilane alcohol, 10-15 part allantoin, 12-15 part hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, 8-10 part glycerine polymethacrylates and 60-70 part water composition, in this corrosion inhibiting and descaling agent component, do not contain organic or Phos, it is the compound corrosion inhibiting and descaling agent of a kind of high molecular polymer and inorganic salts combination, there is consumption few, to environment, the advantages such as human body and crop are safe from harm, it is a kind of environmentally friendly corrosion inhibiter, aluminum plate type cold exchange device is had to excellent corrosion mitigating effect, application prospect is good.
Description
Technical field
The invention belongs to water treatment field, more particularly, relate to a kind of corrosion-proofing and antisludging method of aluminum plate type cold exchange device.
Background technology
China is the country of a water resource famine, has the water resource per capita of 18 provinces，municipalities and autonomous regions lower than the per capita water resource 2000m of United Nations Commission for Sustainable Development's review3, 10 provinces，municipalities and autonomous regions are lower than 1000m3The minimum line of existence, the wretched insufficiency of water resource will affect normal productive life, affects expanding economy, recirculated cooling water is the rich and influential family of water for industrial use. Due to the worsening shortages of freshwater resources, industrial colling treatment agent is more and more subject to people's attention. Organic phospho acid is a now widely used class water treatment agent, and it is the exploitation of external the mid-1960s, the class water treatment agent being identified the seventies, there is good chemical stability, heat-resisting quantity and have that consumption is few concurrently, the feature such as inhibition and scale effect. In addition, organic phospho acid has excellent sequestering power to many metal ions, and they have solved system and produce the problem of calcium carbonate scale, and C-P key exists and makes its stable chemical performance, more high temperature resistant, has obviously " threshold effect " and " cooperative effect ". Its defect is that organic phospho acid can not suppress phosphorus system effectively and phosphorus zinc is calcium phosphate scale, zinc dirt and the iron oxide deposition problems producing in water treatment formula, and phosphorus-containing wastewater discharge causes body eutrophication and marine red tide problem. Implemented to limit phosphorus abroad or prohibited phosphorus measure, it is low-phosphorous and without the exploitation of phosphorus product that China also advocates energetically. Copolymer antisludging agent is a kind of New Type Water Treatment Chemicals of developing after entering the eighties, its superior performance, good, the without phosphorus pollution of compatibility, development prospect are wide, but its price is high, use can not meet water treatment needs separately, therefore need add the composite rear use of other components.
Through retrieval, Chinese patent application publication number CN101560022B, the applying date is that the patent document on May 26th, 2009 discloses a kind of composite slow-corrosion scale resistor, by organic phospho acid 15%～30%, acrylic acid or acrylic copolymer 10%～20%, poly 2%～10%, azole derivative 1%～3%, multi-element organic amine sulfonate 15%～30%, dimethyl formamide or alcohol 2%～6%, the raw material of water 20%～35% quality proportioning is made, this invention composite slow-corrosion scale resistor is the system as recirculated cooling water for water, the corrosion that in can solving, water circulation water causes equipment, but the higher and complicated components of phosphorus content in this composite slow-corrosion scale resistor, be only applicable to the system of middle water as recirculated cooling water, application is restricted. Chinese patent application publication number CN101767885A, the applying date is that the patent document on January 12nd, 2010 discloses a kind of phosphate-free corrosion inhibition antisludging agent for water treatment facilities, its active principle weight ratio is: itaconic acid-propenoic acid-ACR 18-20%, 2-acrylamide-2-methyl propane sulfonic acid-diethyl acrylamide polymer 8-10%, poly-epoxy succinic acid 9-11%, HPMA 10-12%, fluorescein 0.5-1.5%, water 45-53%, the key component of this invention is natural polymer, there is natural circulus, there is the active group of chelating high volence metal ion, there is certain corrosion and scale inhibition performance, but anticorrosion-antiscaling effect is bad and component in fluorescence have certain toxicity, human body is had to injury, can cause the secondary pollution of water body. therefore, in order to meet current water treatment needs, be badly in need of developing a kind of toxicity low, environment, human body and crop are safe from harm, and the high corrosion inhibiting and descaling agent of corrosion-mitigation scale-inhibition efficiency. it is light that aluminium has material, heat conduction is good, be easy to processing and in neutrality, the feature such as very anti-corrosion near neutral water and atmosphere, be widely used in and manufacture aluminum plate type cold exchange device, condenser, air cooler, crystallizer, reactor, drier, storage tank, tank car and pipe arrangement etc., in building, communications and transportation, light industry and the industry such as civilian also have a large amount of application, aluminium cold exchange device in use for some time, dust, greasy dirt, working medias etc. are easy to form dirt in equipment surface, when aluminium corrodes below dirt, also form larger thermal resistance, have a strong impact on equipment refrigeration, therefore need to study a kind of corrosion-proofing and antisludging method of aluminum plate type cold exchange device.
Summary of the invention
1. the problem that will solve
For in prior art, be not suitable for aluminum plate type cold exchange device high-efficiency corrosion-mitigation scale-inhibition method and corrosion inhibiting and descaling agent use amount large, environment is had and polluted and processing calcium phosphate scale, the problems such as the weak effect of zinc dirt and iron oxide deposition, the invention provides a kind of corrosion-proofing and antisludging method of aluminum plate type cold exchange device, in corrosion inhibiting and descaling agent component of the present invention, do not contain organic or Phos, it is the compound corrosion inhibiting and descaling agent of a kind of high molecular polymer and inorganic salts combination, there is consumption few, to environment, the advantages such as human body and crop are safe from harm, it is a kind of environmentally friendly corrosion inhibiter.
2. technical scheme
In order to address the above problem, the technical solution adopted in the present invention is as follows:
A corrosion-proofing and antisludging method for aluminum plate type cold exchange device, the steps include:
(1) prepare without phosphorus composite slow-release antisludging agent, the constituent of slow-release scale inhibitor and the mass fraction of each component are: 20-30 part calcium tartrate, 10-20 part octadecyl glucosides, 8-12 part BTA, two (methylol) imidazolidinyl ureas of 3-5 part, 15-20 part methyl-monosilane alcohol, 10-15 part allantoin, 12-15 part hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, 8-10 part glycerine polymethacrylates, 60-70 part water.
(2) slow-release scale inhibitor of preparation in step (1) is added in recirculated cooling water, wherein the concentration of slow-release scale inhibitor in recirculated cooling water is 400-600ppm;
(3) by passing into the recirculated cooling water that contains slow-release scale inhibitor in step (2) in aluminum plate type cold exchange device, carry out heat-exchanging process.
Preferably, the mass fraction of each component of the slow-release scale inhibitor in step (1) is: 25 parts of calcium tartrates, 20 parts of octadecyl glucosides, 10 parts of BTAs, 4 parts of two (methylol) imidazolidinyl ureas, 20 parts of methyl-monosilane alcohol, 10 parts of allantoins, 15 parts of hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, 10 parts of glycerine polymethacrylates, 65 parts of water.
Preferably, the preparation method of the without phosphorus composite slow-release antisludging agent in step (1) is:
(a) in reaction bulb, add sodium acryloyldimethyl taurate, water and initator to stir, be then heated to 80-90 DEG C, wherein the mass ratio of sodium acryloyldimethyl taurate, water and initator is (50-60): (30-40): 1;
(b) hydroxy-ethyl acrylate is added in the solution in step (a) and carry out polymerisation, obtain hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, wherein the mass ratio of hydroxy-ethyl acrylate and sodium acryloyldimethyl taurate is (1-1.5): 1;
(c) take 20-30 part calcium tartrate, 8-10 part glycerine polymethacrylates, 10-15 part allantoin and 40-50 part water stirring and dissolving according to the mass fraction in claim 1 even, obtain the water of without phosphorus compound corrosion inhibiting and descaling agent;
(d) then successively 10-20 part octadecyl glucosides, 8-12 part BTA, 15-20 part methyl-monosilane alcohol and 20-30 part water are stirred and obtains the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent;
(e) Emulsion Phase obtaining in step (d) is added in the water in step (c); then add successively the hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers preparing in two (methylol) imidazolidinyl ureas of 3-5 part and 12-15 part step (b); stir and be heated to 40-50 DEG C and carry out emulsion reaction 1-2h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
Preferably, the initator in described step (a) is the one in sodium peroxydisulfate or TBHP.
Preferably, in described step (b), the mass ratio of hydroxy-ethyl acrylate and sodium acryloyldimethyl taurate is 1:1, and polymerization reaction time is 3-4h, and reaction temperature is 85 DEG C.
3. beneficial effect
Than prior art, beneficial effect of the present invention is:
(1) not phosphorous in corrosion inhibiting and descaling agent component of the present invention, can environment not produced and be polluted, the present invention is the compound corrosion inhibiting and descaling agent of a kind of high molecular polymer and inorganic salts combination, there is consumption few, to advantages such as environment, human body and crop are safe from harm, be a kind of environmentally friendly corrosion inhibiter, especially aluminum plate type cold exchange device had to excellent corrosion mitigating effect, application prospect is good;
(2) methyl-monosilane alcohol and the allantoin in corrosion inhibiting and descaling agent component of the present invention is highly stable in the aqueous solution, and corrosion mitigating effect is than the high 20%-30% of prior art, resistance to storage, and post processing is easy, can environment not produced and be polluted;
(3) two (methylol) imidazolidinyl ureas in the present invention and hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers not only have the effect of corrosion-mitigation scale-inhibition, and can significantly improve the dispersiveness of corrosion inhibiting and descaling agent of the present invention, be difficult for reuniting, long service life, treatment effect is good;
(4) to have technique simple, reasonable in design for preparation method of the present invention, and mild condition and easy to operate, is suitable for commercial application, the corrosion inhibiter good dispersion preparing according to the raw material order of addition in preparation method and condition, and post processing is easy, environmentally safe.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described.
Embodiment 1
A corrosion-proofing and antisludging method for aluminum plate type cold exchange device, the steps include:
(1) prepare slow-release scale inhibitor, the constituent of slow-release scale inhibitor and the mass fraction of each component are: 25 parts of calcium tartrates, 20 parts of octadecyl glucosides, 10 parts of BTAs, 4 parts of two (methylol) imidazolidinyl ureas, 20 parts of methyl-monosilane alcohol, 10 parts of allantoins, 15 parts of hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, 10 parts of glycerine polymethacrylates, 65 parts of water.
(2) slow-release scale inhibitor of preparation in step (1) is added in recirculated cooling water, wherein the concentration of slow-release scale inhibitor in recirculated cooling water is 400ppm;
(3) by passing into the recirculated cooling water that contains slow-release scale inhibitor in step (2) in aluminum plate type cold exchange device, carry out heat-exchanging process.
Wherein, in step (1), the step of the without phosphorus compound corrosion inhibiting and descaling agent of preparation is:
(a) in reaction bulb, add sodium acryloyldimethyl taurate, water and initator to stir, be then heated to 85 DEG C, wherein, initator is sodium peroxydisulfate, and the mass ratio of sodium acryloyldimethyl taurate, water and sodium peroxydisulfate is 50:40:1;
(b) hydroxy-ethyl acrylate is added in the solution in step (a) and carry out polymerisation, obtain hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, wherein the mass ratio of hydroxy-ethyl acrylate and sodium acryloyldimethyl taurate is 1:1, and under 85 DEG C of conditions, polymerization reaction time is 3.5h;
(c) take 25 parts of calcium tartrates, 10 parts of glycerine polymethacrylates, 10 parts of allantoins and 40 parts of water stirring and dissolving according to above-mentioned mass fraction even, obtain the water of without phosphorus compound corrosion inhibiting and descaling agent;
(d) then successively 20 parts of octadecyl glucosides, 10 parts of BTAs, 20 parts of methyl-monosilane alcohol and 25 parts of water are stirred and obtain the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent;
(e) Emulsion Phase obtaining in step (d) is added in the water in step (c); then add successively the hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers preparing in 4 parts of two (methylol) imidazolidinyl ureas and 15 parts of steps (b); stir and be heated to 40 DEG C and carry out emulsion reaction 2h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
Without phosphorus composite slow-release antisludging agent good dispersion prepared by the present embodiment, water treatment effect excellence, resistance to storage, situation lower seal at unglazed photograph is preserved 3 years, there is not significant change in performance and the indices of liquid, waste liquid after corrosion inhibiting and descaling agent use is invalid can decompose through solar exposure, can environment not produced and be polluted. After tested, in the time that the concentration of without phosphorus composite slow-release antisludging agent is 400ppm, be 93.2% to the corrosion inhibition rate of aluminum plate type cold exchange device, scale inhibition efficiency is 94.7%.
Embodiment 2
A corrosion-proofing and antisludging method for aluminum plate type cold exchange device, the steps include:
(1) prepare slow-release scale inhibitor, the constituent of slow-release scale inhibitor and the mass fraction of each component are: 20 parts of calcium tartrates, 15 parts of octadecyl glucosides, 8 parts of BTAs, 3 parts of two (methylol) imidazolidinyl ureas, 15 parts of methyl-monosilane alcohol, 15 parts of allantoins, 12 parts of hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, 8 parts of glycerine polymethacrylates, 60 parts of water.
(2) slow-release scale inhibitor of preparation in step (1) is added in recirculated cooling water, wherein the concentration of slow-release scale inhibitor in recirculated cooling water is 550ppm;
(3) by passing into the recirculated cooling water that contains slow-release scale inhibitor in step (2) in aluminum plate type cold exchange device, carry out heat-exchanging process.
Wherein, in step (1), the step of the without phosphorus compound corrosion inhibiting and descaling agent of preparation is:
(a) in reaction bulb, add sodium acryloyldimethyl taurate, water and initator to stir, then be heated to 80 DEG C, wherein, initator is TBHP, and the mass ratio of sodium acryloyldimethyl taurate, water and TBHP is 55:40:1;
(b) hydroxy-ethyl acrylate is added in the solution in step (a) and carry out polymerisation, obtain hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, wherein the mass ratio of hydroxy-ethyl acrylate and sodium acryloyldimethyl taurate is 1.2:1, and under 80 DEG C of conditions, polymerization reaction time is 4h;
(c) take 20 parts of calcium tartrates, 8 parts of glycerine polymethacrylates, 15 parts of allantoins and 40 parts of water stirring and dissolving according to above-mentioned mass fraction even, obtain the water of without phosphorus compound corrosion inhibiting and descaling agent;
(d) then successively 15 parts of octadecyl glucosides, 8 parts of BTAs, 15 parts of methyl-monosilane alcohol and 20 parts of water are stirred and obtain the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent;
(e) Emulsion Phase obtaining in step (d) is added in the water in step (c); then add successively the hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers preparing in 3 parts of two (methylol) imidazolidinyl ureas and 12 parts of steps (b); stir and be heated to 45 DEG C and carry out emulsion reaction 1.5h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
Corrosion inhibiting and descaling agent good dispersion prepared by the present embodiment, water treatment effect excellence, resistance to storage, situation lower seal at unglazed photograph is preserved 3 years, there is not significant change in performance and the indices of liquid, waste liquid after corrosion inhibiting and descaling agent use is invalid can decompose through solar exposure, can environment not produced and be polluted.
After tested, in the time that the concentration of without phosphorus composite slow-release antisludging agent is 550ppm, be 98.5% to the corrosion inhibition rate of aluminum plate type cold exchange device, scale inhibition efficiency is 97.4%.
Embodiment 3
A corrosion-proofing and antisludging method for aluminum plate type cold exchange device, the steps include:
(1) prepare slow-release scale inhibitor, the constituent of slow-release scale inhibitor and the mass fraction of each component are: 30 parts of calcium tartrates, 10 parts of octadecyl glucosides, 12 parts of BTAs, 5 parts of two (methylol) imidazolidinyl ureas, 17 parts of methyl-monosilane alcohol, 13 parts of allantoins, 14 parts of hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, 9 parts of glycerine polymethacrylates, 70 parts of water.
(2) slow-release scale inhibitor of preparation in step (1) is added in recirculated cooling water, wherein the concentration of slow-release scale inhibitor in recirculated cooling water is 600ppm;
(3) by passing into the recirculated cooling water that contains slow-release scale inhibitor in step (2) in aluminum plate type cold exchange device, carry out heat-exchanging process.
Wherein, in step (1), the step of the without phosphorus compound corrosion inhibiting and descaling agent of preparation is:
(a) in reaction bulb, add sodium acryloyldimethyl taurate, water and initator to stir, be then heated to 90 DEG C, wherein, initator is sodium peroxydisulfate, and the mass ratio of sodium acryloyldimethyl taurate, water and sodium peroxydisulfate is 60:35:1;
(b) hydroxy-ethyl acrylate is added in the solution in step (a) and carry out polymerisation, obtain hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, wherein the mass ratio of hydroxy-ethyl acrylate and sodium acryloyldimethyl taurate is 1.5:1, and under 90 DEG C of conditions, polymerization reaction time is 3h;
(c) take 30 parts of calcium tartrates, 9 parts of glycerine polymethacrylates, 13 parts of allantoins and 45 parts of water stirring and dissolving according to above-mentioned mass fraction even, obtain the water of without phosphorus compound corrosion inhibiting and descaling agent;
(d) then successively 10 parts of octadecyl glucosides, 12 parts of BTAs, 17 parts of methyl-monosilane alcohol and 25 parts of water are stirred and obtain the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent;
(e) Emulsion Phase obtaining in step (d) is added in the water in step (c); then add successively the hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers preparing in 5 parts of two (methylol) imidazolidinyl ureas and 14 parts of steps (b); stir and be heated to 50 DEG C and carry out emulsion reaction 1h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
Corrosion inhibiting and descaling agent good dispersion prepared by the present embodiment, water treatment effect excellence, resistance to storage, situation lower seal at unglazed photograph is preserved 3 years, there is not significant change in performance and the indices of liquid, waste liquid after corrosion inhibiting and descaling agent use is invalid can decompose through solar exposure, can environment not produced and be polluted.
After tested, in the time that the concentration of without phosphorus composite slow-release antisludging agent is 550ppm, be 99.3% to the corrosion inhibition rate of aluminum plate type cold exchange device, scale inhibition efficiency is 95.1%.
Claims (5)
1. a corrosion-proofing and antisludging method for aluminum plate type cold exchange device, the steps include:
(1) prepare without phosphorus composite slow-release antisludging agent, the constituent of slow-release scale inhibitor and the mass fraction of each component are: 20-30 part calcium tartrate, 10-20 part octadecyl glucosides, 8-12 part BTA, two (methylol) imidazolidinyl ureas of 3-5 part, 15-20 part methyl-monosilane alcohol, 10-15 part allantoin, 12-15 part hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, 8-10 part glycerine polymethacrylates, 60-70 part water;
(2) slow-release scale inhibitor of preparation in step (1) is added in recirculated cooling water, wherein the concentration of slow-release scale inhibitor in recirculated cooling water is 400-600ppm;
(3) by passing into the recirculated cooling water that contains slow-release scale inhibitor in step (2) in aluminum plate type cold exchange device, carry out heat-exchanging process.
2. the corrosion-proofing and antisludging method of a kind of aluminum plate type cold exchange device according to claim 1, is characterized in that: the mass fraction of each component of the slow-release scale inhibitor in step (1) is: 25 parts of calcium tartrates, 20 parts of octadecyl glucosides, 10 parts of BTAs, 4 parts of two (methylol) imidazolidinyl ureas, 20 parts of methyl-monosilane alcohol, 10 parts of allantoins, 15 parts of hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, 10 parts of glycerine polymethacrylates, 65 parts of water.
3. the corrosion-proofing and antisludging method of a kind of aluminum plate type cold exchange device according to claim 1, is characterized in that: the preparation method of the without phosphorus composite slow-release antisludging agent in step (1) is:
(a) in reaction bulb, add sodium acryloyldimethyl taurate, water and initator to stir, then be heated to 80-90 DEG C, wherein the mass ratio of sodium acryloyldimethyl taurate, water and initator is (50-60): (30-40): 1;
(b) hydroxy-ethyl acrylate is added in the solution in step (a) and carry out polymerisation, obtain hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers, wherein the mass ratio of hydroxy-ethyl acrylate and sodium acryloyldimethyl taurate is (1-1.5): 1;
(c) take 20-30 part calcium tartrate, 8-10 part glycerine polymethacrylates, 10-15 part allantoin and 40-50 part water stirring and dissolving according to mass fraction even, obtain the water of without phosphorus compound corrosion inhibiting and descaling agent;
(d) then successively 10-20 part octadecyl glucosides, 8-12 part BTA, 15-20 part methyl-monosilane alcohol and 20-30 part water are stirred and obtains the Emulsion Phase of without phosphorus compound corrosion inhibiting and descaling agent;
(e) Emulsion Phase obtaining in step (d) is added in the water in step (c); then add successively the hydroxy-ethyl acrylate/sodium acryloyldimethyl taurate copolymers preparing in two (methylol) imidazolidinyl ureas of 3-5 part and 12-15 part step (b); stir and be heated to 40-50 DEG C and carry out emulsion reaction 1-2h, obtain without phosphorus compound corrosion inhibiting and descaling agent.
4. the corrosion-proofing and antisludging method of a kind of aluminum plate type cold exchange device according to claim 3, is characterized in that: the initator in described step (a) is the one in sodium peroxydisulfate or TBHP.
5. the corrosion-proofing and antisludging method of a kind of aluminum plate type cold exchange device according to claim 3; it is characterized in that: in described step (b), the mass ratio of hydroxy-ethyl acrylate and sodium acryloyldimethyl taurate is 1:1; polymerization reaction time is 3-4h, and reaction temperature is 85 DEG C.
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| US6019903A (en) * | 1998-08-14 | 2000-02-01 | Union Oil Company Of California | Geothermal brine processing |
| CN101591073A (en) * | 2009-07-20 | 2009-12-02 | 浙江亚星源环保科技有限公司 | Phosphate-free corrosion inhibition antisludging agent and preparation method |
| CN103539269A (en) * | 2013-11-14 | 2014-01-29 | 南京林业大学 | Compound aggregate type corrosion and scale inhibitor and preparation method thereof |
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| US6019903A (en) * | 1998-08-14 | 2000-02-01 | Union Oil Company Of California | Geothermal brine processing |
| CN101591073A (en) * | 2009-07-20 | 2009-12-02 | 浙江亚星源环保科技有限公司 | Phosphate-free corrosion inhibition antisludging agent and preparation method |
| CN103539269A (en) * | 2013-11-14 | 2014-01-29 | 南京林业大学 | Compound aggregate type corrosion and scale inhibitor and preparation method thereof |
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