CN102557279A - High-concentration-multiple circulating water treatment method for desalinated sea water - Google Patents
High-concentration-multiple circulating water treatment method for desalinated sea water Download PDFInfo
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- CN102557279A CN102557279A CN2011104302416A CN201110430241A CN102557279A CN 102557279 A CN102557279 A CN 102557279A CN 2011104302416 A CN2011104302416 A CN 2011104302416A CN 201110430241 A CN201110430241 A CN 201110430241A CN 102557279 A CN102557279 A CN 102557279A
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Abstract
The invention provides a high-concentration-ratio circulating water treatment method for desalinated sea water, which is characterized in that a phosphorus corrosion and scale inhibitor is used in an industrial circulating cooling water system, and complemented circulating water is desalinated strong-corrosion seat water with super-low alkalinity, super-low hardness and high-corrosive ions. The phosphorus corrosion and scale inhibitor is added in the complemented water, the concentration ratio of a circulating water system reaches 5.0 times, and the circulating water system can be operated normally. The high-concentration-ratio circulating water treatment method is implemented to achieve industrial circulating water high-concentration-ratio stable operation.
Description
Technical field
The invention belongs to the recirculated cooling water processing technology field, be specifically related to a kind of sea water desaltination water high concentration multiple circulating water treatment process method, promptly a kind of sea water desaltination water cycle cooling water system high concentration ratio operation water treatment process method.Comprising a kind of phosphorus is the preparation method of corrosion inhibiting and descaling agent, and is applied to the High Concentration Circulating Cooling Water system water treatment process of industrial cooling circulating water system.
Background technology
Present stage; Both at home and abroad enterprise's industrial circulating cooling water treatment process method adopt mostly the mankind can direct applied surface water and underground water as the water source; As the circulating water treatment medicament, mostly about 2～3 times, water utilization rate integral body also has very big room for promotion to cycles of concentration like acrylic copolymer, vinylformic acid sulfonic acid analog copolymer, phosphine carboxylic acid copolymer etc. in application; Particularly utilize seawater as industrial process waters, wide prospect is arranged especially.Along with the progress of society and people further protect the enhancing of water resources consciousness, the deep application of seawater more and more receives people's attention.Seawater is handled and to be utilized in America and Europe, the Middle East and some other maritime nation as service water comparatively in vogue, and the technology of its application is comparative maturity also, and is then at the early-stage in China.
Relevant in the world sea water desaltination water is comparatively advanced as the research of the industrial circulating cooling water system water treatment process method at water source, and some country has just proposed through seawater being handled and is applied to the imagination of recirculated water at twentieth century in early days.Along with progress of science and technology, the technology of the aquatic product of sea water desaltination, application is also constantly developed, through the development of over half a century, and the comparatively maturation of reverse osmosis method (RO) and MSF method (MSF) technical development, and be widely used.The sea water desaltination water of producing is the ultra-soft water of utmost point soft, extremely low basicity; And be widely used in industrial generation BW and living quarters domestic water.For example: U.S. Carlsbad, CA San Diego County Water Authority sea water desaltination water factory has just reached 189000m at daily output sea water and fresh water in 2007
3/ day, and be widely used in life and industry; 1973, MITI of Japan divided into and makes water promotion center, specializes in energy-conservation desalting technology.Japan desalimtor is mainly used in process water (is main with power station and BW) and Li Island area domestic water.To calendar year 2001, Japan has 369 desalimtors of day output more than 500 tons, and can supply 777,967 tons desalination water every day, and wherein 347 supply process waters account for 94% of head factory number, and supply only 22 of domestic use of water accounts for 6% of head factory number.Aspect investment amount, industrial desalination plant's gross investment amount of money accounts for 77.8% of total value; Singapore's science and technology that just works on the conversion of salt water into fresh water as far back as the seventies in 20th century; But because cost is too high; Up to nineteen ninety for the initial stage; The Singapore government utility council (PUB) just begins planning by private enterprise's supply desalination water project, and the desalimtor of 13.6 ten thousand tons of 1 daily outputs is built in decision with BOO mode (building-have-run).In June, 2003, Singapore's 200,000,000 Singapore dollars of furnishing funds for are built the seat of honour Xin Quan of desalimtor (SingSpring), and by the price of star spring company with 0.78 yuan of new coin per ton, the desalination water that provides 13.6 ten thousand tons every day is to PUB.This factory adopts reverse reverse osmosis membrane science and technology, produces reliable and secure and meets the fresh water of the World Health Organization and PUB drinkable water safety standards.This factory in September, 2005 water supply start, can satisfy the water demand of Singapore 10%; Israel is a country that arid is short of rain, water resources extremely lacks, and continues to increase the input and the application of sea water desaltination water in recent years, and Israel plans that supplying the water yield to the year two thousand twenty sea water desaltination will reach annual output 2 billion cubic meters; Spain is one of the most arid country in Europe, and Spain has just built up first hand desalimtor nineteen sixty-five, 3000 tame desalimtors is arranged at present in running, and 700 tame day output surpass 800.000m3, account for 25% of world market.Now, there are technical superiority and practical experience in Spain in the sea water desaltination field, and is reverse osmosis desalination device second big country, and sea water desaltination water overall application is in industrial production, agricultural operation and tap water field.
The complete water treatment process method research of domestic relevant in recent years aquatic product of sea water desaltination of China and applicable industry cooling water system also has bigger development; And be used for engineering construction; But sea water desaltination water application cycle water coolant, and realization circulating water system high concentration ratio operation process method is not used widely at home.What Zhejiang Yuhuan power plant adopted is that sea water desaltination water is as the systemic circulation cooling water; Middle husky (Tianjin) petrochemical industry ltd water of productive use nearly 90% is sea water desaltination water.
Therefore, exploitation is fit to the development trend that sea water desaltination water cycle cooling water system water treatment process method becomes the industrial cycle water treatment.
Summary of the invention
The present invention is a kind of sea water desaltination water high concentration multiple circulating water treatment process method; It is characterized in that:
1) phosphorus is the preparation method of corrosion inhibiting and descaling agent:
Described phosphorus be corrosion inhibiting and descaling agent contain weight percent gather phosphorus 8～12%, PBTCA (2-phosphate-1; 2; The 4-butane tricarboxylate) 1～5%, benzotriazole 0.2～3%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 15～30%, the terpolymer 5～10% of vinylformic acid/AMPS, zinc sulfate 1～10%, surplus is a water;
Concrete preparation process is following: the terpolymer 5～10% that will gather phosphorus 8～12%, PBTCA (2-phosphate-1,2,4-butane tricarboxylate) 1～5%, benzotriazole 0.2～3%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 15～30%, vinylformic acid/AMPS places airtight or pressurized vessel; Under the agitation condition; The condition and range of control reaction temperature is 40～70 ℃, and control pressure is 0.1Mpa, stirs; Add zinc sulfate, water again; Keep 40～70 ℃, stir to dissolving fully, obtaining faint yellow or colourless phosphorus is corrosion inhibiting and descaling agent;
2) sea water desaltination water cycle cooling water system high concentration ratio operation water technology:
With the phosphorus of preparation is corrosion inhibiting and descaling agent, is applied to the industrial circulating cooling water system water technology of sea water desaltination water as the moisturizing water source; Described phosphorous corrosion inhibiting and descaling agent is applied to the corrodibility water quality characteristics water system of sea water desaltination water class super-low-hardness, ultralow basicity, highly corrosive ion content; Through in moisturizing, adding the phosphorous corrosion inhibiting and descaling agent of preparation, adding consistency is 20～30mg/L in the moisturizing; Make recirculated water in 5 times of following steady runnings of high concentration multiple; On-the-spot corrosion inhibiting and descaling agent dosage is through total phosphorus control; Its beneficial effect is:
The recirculated water cycles of concentration is controlled at 5 times; Total phosphorus is with PO
4 3-Meter is controlled at 8～10mg/L; The corrosion rate of recirculated water medium carbon steel lacing film and test tube less than 0.075mm/a, stainless corrosion rate less than the corrosion rate of 0.005mm/a, copper alloy less than 0.005mm/a, adhere to speed less than 15mg/cm
2The moon, fouling resistance value are less than 3.44 * 10
-4m
2K/W, heterotrophic bacterium number are less than 1 * 10
5Individual/mL.
Described treatment process method, it is further characterized in that:
Phosphorus is the preparation method of corrosion inhibiting and descaling agent:
Described phosphorus be corrosion inhibiting and descaling agent contain weight percent gather phosphorus 8～12%, PBTCA (2-phosphate-1; 2; The 4-butane tricarboxylate) 1～5%, benzotriazole 0.2～3%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 15～30%, the terpolymer 5～10% of vinylformic acid/AMPS, zinc sulfate 1～10%, surplus is a water;
Concrete preparation process is following: the terpolymer 5～10% that will gather phosphorus 8～12%, PBTCA (2-phosphate-1,2,4-butane tricarboxylate) 1～5%, benzotriazole 0.2～3%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 15～30%, vinylformic acid/AMPS places airtight or pressurized vessel; Under the agitation condition; The condition and range of control reaction temperature is 40～70 ℃, and control pressure is 0.1Mpa, stirs; Add zinc sulfate, water again; Keep 40～70 ℃, stir, obtain faint yellow or colourless phosphorus corrosion inhibiting and descaling agent to dissolving fully;
Embodiment
Embodiment 1,
Material by following weight percent prepares corrosion inhibiting and descaling agent:
The terpolymer 5% that will gather phosphorus 8%, PBTCA (2-phosphate-1,2,4-butane tricarboxylate) 2%, benzotriazole 0.5%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 15%, vinylformic acid/AMPS places airtight or pressurized vessel; Under the agitation condition; The condition and range of control reaction temperature is 40～70 ℃, and control pressure is 0.1Mpa, stirs; Add zinc sulfate, water again; Keep 40～70 ℃, stir, obtain faint yellow or colourless phosphorus corrosion inhibiting and descaling agent to dissolving fully;
Embodiment 2,
Material by following weight percent prepares corrosion inhibiting and descaling agent:
The terpolymer 8% that will gather phosphorus 10%, PBTCA (2-phosphate-1,2,4-butane tricarboxylate) 3%, benzotriazole 1%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 20%, vinylformic acid/AMPS places airtight or pressurized vessel; Under the agitation condition; The condition and range of control reaction temperature is 40～70 ℃, and control pressure is 0.1Mpa, stirs; Add zinc sulfate, water again; Keep 40～70 ℃, stir, obtain faint yellow or colourless phosphorus corrosion inhibiting and descaling agent to dissolving fully;
Embodiment 3,
Material by following weight percent prepares corrosion inhibiting and descaling agent:
The terpolymer 10% that will gather phosphorus 12%, PBTCA (2-phosphate-1,2,4-butane tricarboxylate) 5%, benzotriazole 3%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 30%, vinylformic acid/AMPS places airtight or pressurized vessel; Under the agitation condition; The condition and range of control reaction temperature is 40～70 ℃, and control pressure is 0.1Mpa, stirs; Add zinc sulfate, water again; Keep 40～70 ℃, stir, obtain faint yellow or colourless phosphorus corrosion inhibiting and descaling agent to dissolving fully;
Embodiment 4,
According to phosphorus of the present invention is that corrosion inhibiting and descaling agent is characterized in that in using the strong sea water desaltination recirculating cooling water system of corrodibility, realizing the steady running of recirculated cooling water high concentration multiple to sea water desaltination water system high concentration ratio operation water treatment process method.Corrosion inhibiting and descaling agent is used for ultralow basicity, super-low-hardness, highly corrosive ionic sea water desaltination water to water system.When the recirculated cooling water cycles of concentration was controlled at 4.0 times, to add concentration be 30mg/L to the phosphorus corrosion inhibiting and descaling agent in the moisturizing.The corrosion rate of recirculated water medium carbon steel lacing film and test tube less than 0.075mm/a, stainless corrosion rate less than the corrosion rate of 0.005mm/a, copper alloy less than 0.005mm/a, adhere to speed less than 15mg/cm
2The moon, fouling resistance value are less than 3.44 * 10
-4m
2K/W, heterotrophic bacterium number are less than 1 * 10
5Individual/mL.
Embodiment 5,
According to phosphorus of the present invention is that corrosion inhibiting and descaling agent is characterized in that in using the strong sea water desaltination recirculating cooling water system of corrodibility, realizing the steady running of recirculated cooling water high concentration multiple to sea water desaltination water system high concentration ratio operation water treatment process method.Corrosion inhibiting and descaling agent is used for ultralow basicity, super-low-hardness, highly corrosive ionic sea water desaltination water to water system.When the recirculated cooling water cycles of concentration was controlled at 5.0 times, to add concentration be 30mg/L to the phosphorus corrosion inhibiting and descaling agent in the moisturizing.The corrosion rate of recirculated water medium carbon steel lacing film and test tube less than 0.075mm/a, stainless corrosion rate less than the corrosion rate of 0.005mm/a, copper alloy less than 0.005mm/a, adhere to speed less than 15mg/cm
2The moon, fouling resistance value are less than 3.44 * 10
-4m
2K/W, heterotrophic bacterium number are less than 1 * 10
5Individual/mL.
Embodiment 6,
According to phosphorus of the present invention is that corrosion inhibiting and descaling agent is characterized in that in using the strong sea water desaltination recirculating cooling water system of corrodibility, realizing the steady running of recirculated cooling water high concentration multiple to sea water desaltination water system high concentration ratio operation water treatment process method.Corrosion inhibiting and descaling agent is used for ultralow basicity, super-low-hardness, highly corrosive ionic sea water desaltination water to water system.When the recirculated cooling water cycles of concentration was controlled at 6.0 times, to add concentration be 30mg/L to the phosphorus corrosion inhibiting and descaling agent in the moisturizing.The corrosion rate of recirculated water medium carbon steel lacing film and test tube less than 0.075mm/a, stainless corrosion rate less than the corrosion rate of 0.005mm/a, copper alloy less than 0.005mm/a, adhere to speed less than 15mg/cm
2The moon, fouling resistance value are less than 3.44 * 10
-4m
2K/W, heterotrophic bacterium number are less than 1 * 10
5Individual/mL.
Claims (2)
1. sea water desaltination water high concentration ratio water treatment process method is characterized in that:
1) phosphorus is the preparation method of corrosion inhibiting and descaling agent:
Described phosphorus be corrosion inhibiting and descaling agent contain weight percent gather phosphorus 8～12%, PBTCA [2-phosphate-1; 2; The 4-butane tricarboxylate] 1～5%, benzotriazole 0.2～3%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 15～30%, the terpolymer 5～10% of vinylformic acid/AMPS, zinc sulfate 1～10%, surplus is a water;
Concrete preparation process is following: the terpolymer 5～10% that will gather phosphorus 8～12%, PBTCA [2-phosphate-1,2,4-butane tricarboxylate] 1～5%, benzotriazole 0.2～3%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 15～30%, vinylformic acid/AMPS places airtight or pressurized vessel; Under the agitation condition; The condition and range of control reaction temperature is 40～70 ℃, and control pressure is 0.1Mpa, stirs; Add zinc sulfate, water again; Keep 40～70 ℃, stir, obtain faint yellow or colourless phosphorus corrosion inhibiting and descaling agent to dissolving fully;
2) phosphorus is that corrosion inhibiting and descaling agent moves water technology to sea water desaltination water system high concentration ratio:
The phosphorus corrosion inhibiting and descaling agent of preparation is applied to the industrial circulating cooling water system water technology of sea water desaltination water as the water source; Described phosphorus corrosion inhibiting and descaling agent is applied to the water system like sea water desaltination water class super-low-hardness, ultralow basicity, highly corrosive ion water quality characteristics; Through in moisturizing, adding the phosphorus corrosion inhibiting and descaling agent of preparation, adding consistency is 20～30mg/L in the moisturizing; Make recirculated water in 5～8 times of following steady runnings of high concentration multiple; On-the-spot corrosion inhibiting and descaling agent dosage is through total phosphorus control; Its beneficial effect is:
The recirculated water cycles of concentration is controlled at 5 times; Total phosphorus is with PO
4 3-Meter is controlled at 8～10mg/L; The corrosion rate of recirculated water medium carbon steel lacing film and test tube less than 0.075mm/a, stainless corrosion rate less than the corrosion rate of 0.005mm/a, copper alloy less than 0.005mm/a, adhere to speed less than 15mg/cm
2The moon, fouling resistance value are less than 3.44 * 10
-4m
2K/W, heterotrophic bacterium number are less than 1 * 10
5Individual/mL.
2. according to the described treatment process method of claim 1, it is characterized in that:
Phosphorus is the preparation method of corrosion inhibiting and descaling agent:
Described phosphorus be corrosion inhibiting and descaling agent contain weight percent gather phosphorus 8～12%, PBTCA [2-phosphate-1; 2; The 4-butane tricarboxylate] 1～5%, benzotriazole 0.2～3%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 15～30%, the terpolymer 5～10% of vinylformic acid/AMPS, zinc sulfate 1～10%, surplus is a water;
Concrete preparation process is following: will gather phosphorus 8～12%, PBTCA [2-phosphate-1,2, the terpolymer 5～10% of 4-butane tricarboxylate 11～5%, benzotriazole 0.2～3%, vinylformic acid/2-methyl-2-acrylamido propanesulfonic acid/MALEIC ANHYDRIDE/2-hydroxyl-2-phosphoryl acetate tetrapolymer 15～30%, vinylformic acid/AMPS places airtight or pressurized vessel; Under the agitation condition; The condition and range of control reaction temperature is 40～70 ℃, and control pressure is 0.1Mpa, stirs; Add zinc sulfate, water again; Keep 40～70 ℃, stir, obtain faint yellow or colourless phosphorus corrosion inhibiting and descaling agent to dissolving fully.
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| CN109294545A (en) * | 2018-08-30 | 2019-02-01 | 天津正达科技有限责任公司 | A kind of water solubility corrosion inhibitor for oil field and preparation method thereof |
| CN113050534A (en) * | 2021-03-15 | 2021-06-29 | 天津正达科技有限责任公司 | Intelligent control system and method for circulating cooling water system |
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Application publication date: 20120711 |