CN1636891A - Treating method of sea water as circulating cooling water - Google Patents
Treating method of sea water as circulating cooling water Download PDFInfo
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- CN1636891A CN1636891A CN 200410065134 CN200410065134A CN1636891A CN 1636891 A CN1636891 A CN 1636891A CN 200410065134 CN200410065134 CN 200410065134 CN 200410065134 A CN200410065134 A CN 200410065134A CN 1636891 A CN1636891 A CN 1636891A
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Abstract
The treatment of sea water as circulating cooling water solves the problem of corrosion and scaling of cooling water system of admiralty brass, carbon steel and other material and the problem of jamming caused by microbes and clay in sea water. The treatment method is to add corrosion inhibitor 40-50 mg, antiscaling agent 30-40 mg, oxidizing biocide 20-30 mg and non-oxidizing biocide 80-120 mg to each liter of sea water used as circulating cooling water. The treatment method coincides with relevant specification and reaches very high water saving effect.
Description
Technical field
The present invention relates to a kind of treatment process of recirculated cooling water, more specifically to the treatment process of a kind of seawater as recirculated cooling water.
Background technology
China is a water resources big country, but because the spatial and temporal distributions and the population distribution inequality of China's Freshwater resources, imbalances of social and economic development, cause some areas Freshwater resources seriously in short supply, China's coastal economy developed regions particularly, though occupy critical role in Chinese national economy, coastal industry city, coastal economy developed regions water resource of per capita major part is lower than 500m
3(water resource of per capita in Dalian, Tianjin, Qingdao, Lianyun Harbour, Shanghai all is lower than 200m
3), be in extremely lack of water circumstances.According to statistics, about 70%～80% in the town water, process water, about 70%～80% in the process water, industrial cooling water.In the face of the short supply state of coastal cities Freshwater resources, the development and use seawater replaces fresh water as process water, particularly as industrial colling, is one of important channel that solves China coastal cities and regional Freshwater resources crises problem.
At present, the coastland has had a lot of industrial enterprises to utilize seawater to replace fresh water as industrial colling both at home and abroad, but the type of cooling is to adopt the direct cooling water supply mode always, and interchanger adopts the titanium material, pipeline carries out the inside lining anti-corrosive material, so not only construction investment is big, and a large amount of hot water of discharging have caused thermal pollution to the offshore sea waters.Therefore the water coolant of coastland large and medium-sized industrial enterprise adopts seawater to make make up water, the recirculating cooling water system of select tape cooling tower, system generally adopts carbon steel pipe, admiraltymetal as material, not only avoided discharging hot water in a large number to the ocean, greatly reduced from the quantity of ocean water intaking, and the cost of system device is lower.
Because the salinity of seawater is high, contains high rigidity, high chloride ion, high sulfate ion and high dissolved solids, and equipment is had stronger burn into fouling tendency, recirculated cooling water reaches water-transmission line and has heavy corrosion and fouling on the heat-transfer surface in operational process; Also contain multiple microorganism, shellfish, hydra insects etc. in the seawater simultaneously, when recirculated cooling water moves, breed seriously, and the just easy occluding device of shellfish itself, can cause recycle system operation not smooth; The offshore area water suspension is higher in addition, can promote microbial growth and forms foundry loam, easily attached to recirculating cooling water system internal cooling equipment inwall, water-transmission line, easily results in blockage when serious.
For solving these problems that the circulation refrigerated sea water brings, be necessary to enter system, reduce on the basis of suspended substance seawater being carried out pre-treatment avoid growing up shellfish and hydra insects etc. with method machinery, chemistry, add acid treatment in conjunction with circulating water system and alleviate scaling tendency, carry out scale inhibitor simultaneously, the bacterium algae is killed livestock and foundry loam such as peels off at work of treatment.
Summary of the invention
The invention solves seawater when making recirculated cooling water to the corrosion of materials such as the admiraltymetal of recirculating cooling water system, carbon steel pipe and the problem of fouling, solved in the seawater microbial reproduction simultaneously and seriously reached foundry loam and adhere to problems such as easy occluding device with seawater.
Technical scheme of the present invention is as follows.
Seawater of the present invention is as the treatment process of recirculated cooling water, comprise the circulation of sea water preprocessing and seawater, seawater adds inhibiter 40～50mg, Scale inhibitors 30～40mg, oxidisability biocide 20～30mg, non-oxidative bactericide 80～120mg in as every liter of seawater of recirculated cooling water circulation time.
Described inhibiter contains molybdate 10～20%, gluconate 12～20%, benzoate 5～10%, zinc sulfate 10～20%, zinc chloride 5～10%, trisodium citrate 8～15%, thionamic acid 4～8%, Sodium hexametaphosphate 99 4～8%, sodium sulfate 5～10%, the phenylpropyl alcohol triazole 4～10% of weight percent; N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 6～10%, phosphine carboxylic acid 10～20%, phosphoric acid 5～10%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 20～40%, surplus that described Scale inhibitors contains weight percent are water; Described oxidisability biocide is a kind of or its combination in Babysafe, strong chlorine oil, active bromine, four kinds of materials of bromochlorohydantoin; Described non-oxidative bactericide is a kind of or its combination in dodecyl benzyl dimethyl ammonium chloride, isothiazolinone, organic amine, four kinds of materials of bi-quaternary ammonium salt.
Described molybdate is a Sodium orthomolybdate; Described gluconate is a Sunmorl N 60S; Described benzoate is a Sodium Benzoate; Described phosphine carboxylic acid is the 2-phosphonic acid butane, 1,2, and the 4-tricarboxylic acid.
The invention has the beneficial effects as follows:
Between 1.5～2.0, the corrosion of Carbon Steel rate is less than 0.125mm/a as the treatment process may command cycles of concentration of recirculated cooling water for seawater of the present invention, and copper, stainless corrosion rate are less than 0.009mm/a, and biological clay is less than 4.0mL/m
3, total heterotrophic bacteria count is less than 5.0 * 10
5Individual/mL, fouling resistance is less than 3.44 * 10
-4m
3.k/w, meet the regulation of " State Standard of the People's Republic of China's Code for design of industrial recirculating cooling water treatment " GB50050-95, with respect to the direct current cooling, water saving can reach 97%.
Embodiment
Embodiment 1
Seawater of the present invention sees Table 1 as treatment process system operational parameters when implementing of recirculated cooling water, and seawater quality sees Table 2.
Table 1, system operational parameters
| Operating parameter | Unit | Numerical value |
| Quantity of circulating water Qr | ????t/h | ????15000 |
| Possess water yield V | ????m 3 | ????3500 |
| Evaporated water Qe | ????t/h | ????200 |
| Water amount of blowdown Qb | ????t/h | ????250～500 |
| Amount of makeup water Qm | ????t/h | ????450～750 |
| Cycles of concentration K | ????1.4～2.0 |
Table 2, make up water (seawater) water quality
| Analysis project | Unit | Replenish seawater | Circulating seawer (K=2.0) |
| pH | 8.11 | (8.5 estimated value) | |
| Specific conductivity | us/cm | 7500 | 15000 |
| Suspended substance | mg/L | 25.50 | 51.0 |
| Calcium ion | `` | 428.20 | 856.4 |
| Magnesium ion | `` | 1321.80 | 2643.6 |
| Total hardness 1/2 (Ca 2++Mg 2+) | mmol/L | 130.14 | 260.28 |
| Total alkalinity is (with CaCO 3Meter) | mmol/L | 2.25 | 4.5 |
| Chlorion | mg/L | 20081.6 | 40163.2 |
| Sulfate radical | `` | 3707.50 | 7415.0 |
| Iron ion | `` | 0.38 | 0.76 |
| Dissolved solids | `` | 35980 | 71960 |
Seawater the results are shown in Table 3 add inhibiter 40mg/L, Scale inhibitors 30mg/L, oxidisability biocide 30mg/L, non-oxidative bactericide 120mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 10%, Sunmorl N 60S 12%, Sodium Benzoate 10%, zinc sulfate 20%, zinc chloride 10%, trisodium citrate 10%, thionamic acid 6%, Sodium hexametaphosphate 99 8%, sodium sulfate 10%, phenylpropyl alcohol triazole 4%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 6%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 20%, phosphoric acid 5%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 20%, water 49%.
The oxidisability biocide is a Babysafe.
Non-oxidative bactericide is a dodecyl benzyl dimethyl ammonium chloride.
Embodiment 2
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 45mg/L, Scale inhibitors 35mg/L, oxidisability biocide 25mg/L, non-oxidative bactericide 80mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 11%, Sunmorl N 60S 14%, Sodium Benzoate 9%, zinc sulfate 19%, zinc chloride 9%, trisodium citrate 11%, thionamic acid 5%, Sodium hexametaphosphate 99 7%, sodium sulfate 9%, phenylpropyl alcohol triazole 6%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 7%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 19%, phosphoric acid 6%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 24%, water 44%.
The oxidisability biocide is a strong chlorine oil.
Non-oxidative bactericide is an isothiazolinone.
Embodiment 3
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 50mg/L, Scale inhibitors 40mg/L, oxidisability biocide 25mg/L, non-oxidative bactericide 100mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 13%, Sunmorl N 60S 15%, Sodium Benzoate 8%, zinc sulfate 18%, zinc chloride 8%, trisodium citrate 12%, thionamic acid 4%, Sodium hexametaphosphate 99 6%, sodium sulfate 8%, phenylpropyl alcohol triazole 8%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 8%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 18%, phosphoric acid 7%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 30%, water 37%.
The oxidisability biocide is an active bromine.
Non-oxidative bactericide is an organic amine.
Embodiment 4
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 50mg/L, Scale inhibitors 40mg/L, oxidisability biocide 20mg/L, non-oxidative bactericide 90mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 13%, Sunmorl N 60S 14%, Sodium Benzoate 7%, zinc sulfate 17%, zinc chloride 7%, trisodium citrate 13%, thionamic acid 5%, Sodium hexametaphosphate 99 5%, sodium sulfate 9%, phenylpropyl alcohol triazole 10%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 9%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 17%, phosphoric acid 8%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 34%, water 32%.
The oxidisability biocide is a bromochlorohydantoin.
Non-oxidative bactericide is a bi-quaternary ammonium salt.
Embodiment 5
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 50mg/L, Scale inhibitors 40mg/L, oxidisability biocide 20mg/L, non-oxidative bactericide 100mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 14%, Sunmorl N 60S 17%, Sodium Benzoate 6%, zinc sulfate 16%, zinc chloride 8%, trisodium citrate 14%, thionamic acid 4%, Sodium hexametaphosphate 99 7%, sodium sulfate 6%, phenylpropyl alcohol triazole 8%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 10%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 16%, phosphatase 79 %, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 36%, water 29%.
Oxidisability biocide: Babysafe 50%, bromochlorohydantoin 50%.
Non-oxidative bactericide: bi-quaternary ammonium salt 50%, dodecyl benzyl dimethyl ammonium chloride 50%.
Embodiment 6
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 45mg/L, Scale inhibitors 30mg/L, oxidisability biocide 24mg/L, non-oxidative bactericide 120mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 15%, Sunmorl N 60S 20%, Sodium Benzoate 5%, zinc sulfate 15%, zinc chloride 5%, trisodium citrate 15%, thionamic acid 6%, Sodium hexametaphosphate 99 8%, sodium sulfate 5%, phenylpropyl alcohol triazole 6%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 10%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 15%, phosphatase 11 0%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 40%, water 25%.
Oxidisability biocide: strong chlorine oil 50%, bromochlorohydantoin 50%.
Non-oxidative bactericide: isothiazolinone 50%, dodecyl benzyl dimethyl ammonium chloride 50%.
Embodiment 7
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 40mg/L, Scale inhibitors 35mg/L, oxidisability biocide 22mg/L, non-oxidative bactericide 100mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 16%, Sunmorl N 60S 18%, Sodium Benzoate 8%, zinc sulfate 14%, zinc chloride 7%, trisodium citrate 9%, thionamic acid 5%, Sodium hexametaphosphate 99 7%, sodium sulfate 8%, phenylpropyl alcohol triazole 8%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 9%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 14%, phosphatase 79 %, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 38%, water 30%.
Oxidisability biocide: Babysafe 30%, active bromine 35%, bromochlorohydantoin 35%.
Non-oxidative bactericide: bi-quaternary ammonium salt 30%, organic amine 30%, dodecyl benzyl dimethyl ammonium chloride 40%.
Embodiment 8
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 40mg/L, Scale inhibitors 35mg/L, oxidisability biocide 30mg/L, non-oxidative bactericide 120mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 17%, Sunmorl N 60S 19%, Sodium Benzoate 6%, zinc sulfate 13%, zinc chloride 8%, trisodium citrate 8%, thionamic acid 6%, Sodium hexametaphosphate 99 6%, sodium sulfate 7%, phenylpropyl alcohol triazole 10%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 8%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 13%, phosphoric acid 8%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 35%, water 36%.
Oxidisability biocide: Babysafe 40%, strong chlorine oil 60%.
Non-oxidative bactericide: isothiazolinone 25%, organic amine 30%, bi-quaternary ammonium salt 30%, dodecyl benzyl dimethyl ammonium chloride 15%.
Embodiment 9
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 45mg/L, Scale inhibitors 40mg/L, oxidisability biocide 24mg/L, non-oxidative bactericide 100mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 18%, Sunmorl N 60S 14%, Sodium Benzoate 5%, zinc sulfate 14%, zinc chloride 9%, trisodium citrate 9%, thionamic acid 8%, Sodium hexametaphosphate 99 7%, sodium sulfate 8%, phenylpropyl alcohol triazole 8%.。
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 7%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 12%, phosphoric acid 7%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 30%, water 44%.
Oxidisability biocide: Babysafe 25%, strong chlorine oil 25%, active bromine 25%, bromochlorohydantoin 25%.
Non-oxidative bactericide: isothiazolinone 50%, bi-quaternary ammonium salt 50%.
Embodiment 10
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 50mg/L, Scale inhibitors 30mg/L, oxidisability biocide 30mg/L, non-oxidative bactericide 120mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 19%, Sunmorl N 60S 18%, Sodium Benzoate 7%, zinc sulfate 11%, zinc chloride 10%, trisodium citrate 10%, thionamic acid 6%, Sodium hexametaphosphate 99 4%, sodium sulfate 7%, phenylpropyl alcohol triazole 8%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 6%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 11%, phosphoric acid 6%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 25%, water 52%.
Oxidisability biocide: Babysafe 35%, strong chlorine oil 25%, bromochlorohydantoin 40%.
Non-oxidative bactericide: isothiazoline 35%, organic amine 32%, bi-quaternary ammonium salt 33%.
Embodiment 11
System operational parameters and seawater quality are with embodiment 1
Seawater the results are shown in Table 3 add inhibiter 40mg/L, Scale inhibitors 35mg/L, oxidisability biocide 20mg/L, non-oxidative bactericide 90mg/L as the recirculated cooling water circulation time.
By material preparation inhibiter, Scale inhibitors, oxidisability biocide and the non-oxidative bactericide of following weight percent,
Inhibiter: Sodium orthomolybdate 20%, Sunmorl N 60S 14%, Sodium Benzoate 6%, zinc sulfate 10%, zinc chloride 10%, trisodium citrate 10%, thionamic acid 7%, Sodium hexametaphosphate 99 6%, sodium sulfate 7%, phenylpropyl alcohol triazole 10%.
Scale inhibitors: N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 7%, 2-phosphonic acid butane; 1; 2,4-tricarboxylic acid 10%, phosphoric acid 5%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 20%, water 58%.
Oxidisability biocide: Babysafe 20%, strong chlorine oil 25%, active bromine 35%, bromochlorohydantoin 20%.
Non-oxidative bactericide: isothiazolinone 25%, organic amine 25%, bi-quaternary ammonium salt 25%, dodecyl benzyl dimethyl ammonium chloride 25%.
Table 3: the effect of different embodiments of the invention and certain factory's corrosive water circulating effect contrast
| Embodiment | Corrosion of Carbon Steel rate mm/a | Stainless corrosion rate mm/a | Total heterotrophic bacteria count/mL | Fouling resistance m 3.k/w |
| Embodiment 1 | ????0.121 | ????0.0038 | ??2.0×10 3 | ????3.23×10 -4 |
| Embodiment 2 | ????0.104 | ????0.0034 | ??5.0×10 4 | ????3.16×10 -4 |
| Embodiment 3 | ????0.108 | ????0.0047 | ??3.0×10 4 | ????3.27×10 -4 |
| Embodiment 4 | ????0.122 | ????0.0048 | ??4.0×10 3 | ????3.41×10 -4 |
| Embodiment 5 | ????0.098 | ????0.0049 | ??3.0×10 4 | ????2.84×10 -4 |
| Embodiment 6 | ????0.093 | ????0.0049 | ??2.0×10 4 | ????2.57×10 -4 |
| Embodiment 7 | ????0.114 | ????0.0032 | ??5.0×10 3 | ????3.06×10 -4 |
| Embodiment 8 | ????0.092 | ????0.0041 | ??4.0×10 3 | ????3.02×10 -4 |
| Embodiment 9 | ????0.117 | ????0.0046 | ??5.0×10 4 | ????3.13×10 -4 |
| Embodiment 10 | ????0.095 | ????0.0035 | ??4.0×10 3 | ????2.78×10 -4 |
| Embodiment 11 | ????0.104 | ????0.0032 | ??5.0×10 3 | ????2.89×10 -4 |
| Embodiment A | ????0.187 | ????0.0097 | ??6.0×10 4 | ????7.82×10 -4 |
| Embodiment B | ????0.244 | ????0.0138 | ??3.0×10 5 | ????10.74×10 -4 |
Annotate: example A, B are respectively the result of certain factory's corrosive water circulation time.
Claims (9)
1, a kind of seawater is as the treatment process of recirculated cooling water, comprise the circulation of sea water preprocessing and seawater, it is characterized in that seawater adds inhibiter 40～50mg, Scale inhibitors 30～40mg, oxidisability biocide 20～30mg, non-oxidative bactericide 80～120mg in as every liter of seawater of recirculated cooling water circulation time.
2, seawater according to claim 1 is characterized in that as the treatment process of recirculated cooling water described inhibiter contains the molybdate 10～20% of weight percent, gluconate 12～20%, benzoate 5～10%, zinc sulfate 10～20%, zinc chloride 5～10%, trisodium citrate 8～15%, thionamic acid 4～8%, Sodium hexametaphosphate 99 4～8%, sodium sulfate 5～10%, phenylpropyl alcohol triazole 4～10%.
3, seawater according to claim 1 is as the treatment process of recirculated cooling water, it is characterized in that N-phosphonate group N-sulfonic group N '-dicarboxyl-quadrol 6～10%, phosphine carboxylic acid 10～20%, phosphoric acid 5～10%, vinylformic acid/2-acrylamido-2-methyl propane sulfonic acid/2-hydroxyl-2-phosphine acyl acetic acid/phosphonic acids tetrapolymer 20～40%, surplus that described Scale inhibitors contains weight percent are water.
4, seawater according to claim 1 is characterized in that as the treatment process of recirculated cooling water described oxidisability biocide is a kind of or its combination in Babysafe, strong chlorine oil, active bromine, four kinds of materials of bromochlorohydantoin.
5, seawater according to claim 1 is characterized in that as the treatment process of recirculated cooling water described non-oxidative bactericide is a kind of or its combination in dodecyl benzyl dimethyl ammonium chloride, isothiazolinone, organic amine, four kinds of materials of bi-quaternary ammonium salt.
6, seawater according to claim 2 is characterized in that as the treatment process of recirculated cooling water described molybdate is a Sodium orthomolybdate.
7, seawater according to claim 2 is characterized in that as the treatment process of recirculated cooling water described gluconate is a Sunmorl N 60S.
8, seawater according to claim 2 is characterized in that as the treatment process of recirculated cooling water described benzoate is a Sodium Benzoate.
9, seawater according to claim 3 is characterized in that as the treatment process of recirculated cooling water described phosphine carboxylic acid is the 2-phosphonic acid butane, 1,2, and the 4-tricarboxylic acid.
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2004
- 2004-10-26 CN CN 200410065134 patent/CN1275878C/en not_active Expired - Fee Related
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