CN109796069A - A kind of Clear circulating cooling water system non oxidizing bactericide - Google Patents
A kind of Clear circulating cooling water system non oxidizing bactericide Download PDFInfo
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- CN109796069A CN109796069A CN201910142706.4A CN201910142706A CN109796069A CN 109796069 A CN109796069 A CN 109796069A CN 201910142706 A CN201910142706 A CN 201910142706A CN 109796069 A CN109796069 A CN 109796069A
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- cooling water
- circulating cooling
- oxidizing bactericide
- non oxidizing
- water system
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Abstract
The present invention relates to a kind of Clear circulating cooling water system non oxidizing bactericide, which is made of the component of following mass percentage: dodecyl benzyl dimethyl ammonium chloride 5~25%；Polyoxyethylene Zhong Xin phenolic ether -10:0.5~5%；Nonylphenol polyoxyethylene ether: 0.5~5%；Fatty alcohol polyoxyethylene ether: 1~10%；Surplus is water.Non oxidizing bactericide of the present invention is particularly suitable for high COD (30~200mg/L), the Clear circulating cooling water system of high oil content (0.5~10mg/L), it can effectively reduce clear circulation foundry loam after use and breed hidden danger, extend the heat exchange equipment service life, more effectively more comprehensively compared with conventional method.
Description
Technical field
The invention belongs to technology on circulating cooling water treatment fields, and in particular to a kind of Clear circulating cooling water system is with non-oxide
Property fungicide.
Background technique
Due to the concentration of nutrient source, the raising of water temperature and solar radiation in Clear circulating cooling water system operation, to thin
Bacterium and algae create the condition bred rapidly.The mucus that a large amount of bacterial secretories go out can make water float as adhesive
Dust impurity and chemical precipitates etc. are adhered to each other, and the deposit for forming sticky shape is adhered on the heating surface of heat exchanger,
Other than it can cause corrosion, the flowing of cooling water can be also hindered, to reduce the cooling efficiency of heat exchanger.When serious, these lifes
Tube blockage can be forced system to stop production and cleaned by object foundry loam.Especially petrochemical enterprise Clear circulating cooling water system, due to needing
Material own characteristic is cooled down, COD or oil content are often higher in water, and it is especially serious that foundry loam breeds hidden danger.
Conventional solution is to add oxidizing bactericide and non oxidizing bactericide, wherein non oxidizing bactericide one
As be isothiazolinone biocide agent or quaternary ammonium salt fungicide, although have certain bactericidal effect, have the disadvantage that
1. its sludge stripping effect is often insufficient, the microorganism of inactivation can not be by timely discharge system, Biological sludge
Hidden danger still remains；
2. urgent water treatment of the circulation when grease type logistics leakage occurs can not be coped with.
Summary of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, a kind of more effective, more fully non-oxydizing sterilization is developed
Agent strengthens it and carries out sterilization and sludge stripping to clear circulation, and can cope with petrochemical industry chemical company material leakage shape simultaneously
Urgent water treatment under state.
The present invention is a kind of Clear circulating cooling water system non-oxidative antimicrobial, is particularly suitable for high COD, high oil content it is clear
Recirculating cooling water system.Present invention circulation clearly is traditional non oxidizing bactericide, surfactant, infiltration with non oxidizing bactericide
Saturating agent, greasy dirt dispersing agent are prepared, constituent component and constituent mass percentage composition are as follows: dodecyl dimethyl Benzylmagnesium chloride
Ammonium 5~25%；Polyoxyethylene Zhong Xin phenolic ether -10:0.5~5%；Nonylphenol polyoxyethylene ether: 0.5~5%；Fatty alcohol polyoxy second
Alkene ether: 1~10%；Surplus is water.
In above-mentioned technical proposal, the Clear circulating cooling water system is preferably that COD is that 30~200mg/L or oil content exist
The circulation of 0.5~10mg/L.
The preparation step of Clear circulating cooling water system non oxidizing bactericide of the present invention is as follows: by formula ratio
Water is pumped into reaction kettle, respectively slowly by dodecyl benzyl dimethyl ammonium chloride, phenolic ether -10 polyoxyethylene Zhong Xin, nonyl phenol
Polyoxyethylene ether, fatty alcohol polyoxyethylene ether are successively pumped into reaction kettle, obtain the colourless clear circulation to yellow after mixing evenly
With novel non oxidizing bactericide.
The present invention also provides a kind of application of above-mentioned non oxidizing bactericide in Clear circulating cooling water system, first by institute
The Clear circulating cooling water system stated is added with non oxidizing bactericide impact to Clear circulating cooling water system pond, and control adds
Concentration is 30~500mg/L, and preferably 80~200mg/L, viewing system bacterium algae breeds situation determination and adds number, wherein daily fortune
Row state uses 1~4 time, and it is 2~6 times that the frequency is added under material leakage abnormality.
Non oxidizing bactericide of the present invention adds polyoxyethylene secondary octyl phenol on the basis of traditional quaternary ammonium salt fungicide
Ether -10, nonylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, by synergistic function, obtained non oxidizing bactericide
With sterilization, infiltration, sludge stripping, greasy dirt peptizaiton, it can effectively reduce system biological foundry loam and breed hidden danger, reduce system row
Water extends the service life of heat exchange equipment and a whole set of clear circulation.
It is compared with the traditional method and has the advantage that
1. clear circulation non oxidizing bactericide used in contains bleeding agent and surface active agent composition, compared with conventional method energy
More effective realize handles the sludge stripping of equipment inner surface；
2. clear circulation used in has oil removing divergent function with non oxidizing bactericide, can be used for petroleum chemical enterprise's grease type object
Expect the urgent water treatment under leak condition；
Specific embodiment
Embodiment 1
By water 70%, dodecyl benzyl dimethyl ammonium chloride 20%, polyoxyethylene Zhong Xin phenolic ether -10:2%, nonyl phenol
Polyoxyethylene ether: 2%, fatty alcohol polyoxyethylene ether: 6%, it is successively pumped into reaction kettle, obtains after mixing evenly colourless or yellowish
The fungicide A of color.
Shandong chemical plant caustic soda circulation, recirculated water COD is 40~60mg/L, daily to add oxidizing bactericide
0.1~0.3mg/l of recirculated water chlorine residue is maintained, original uses isothiazolinone non oxidizing bactericide 80mg/L, monthly uses 1
It is secondary, slime content 4mL/m3.It is pressed using non oxidizing bactericide A of the present invention and replaces former non-oxydizing sterilization with the frequency with concentration
Agent.System pond bacterium algae significantly reduces, and is down to 2mL/m3(it is better than national standard 3mL/m below3Requirement).
Embodiment 2
By water 61%, dodecyl benzyl dimethyl ammonium chloride 25%, polyoxyethylene Zhong Xin phenolic ether -10:3%, nonyl phenol
Polyoxyethylene ether: 3%, fatty alcohol polyoxyethylene ether: 8%, it is successively pumped into reaction kettle, obtains after mixing evenly colourless or yellowish
The fungicide B of color.
Hebei chemical plant power plant for self-supply circulation, recirculated water COD are 80~150mg/L, routine use oxidisability
Fungicide three times a week, maintains plus rear 3 hours recirculated water chlorine residue >=0.2mg/l, original uses quaternary ammonium salt non oxidizing bactericide,
Concentration 100ppm is added, monthly 2 times, slime content 4.8mL/m3.Original is replaced with the frequency with concentration using fungicide B of the present invention
Non oxidizing bactericide, system pond bacterium algae significantly reduce, and slime content is down to 2mL/m3(it is better than national standard 3mL/m below3's
It is required that).
Embodiment 3
By water 55%, dodecyl benzyl dimethyl ammonium chloride 25%, polyoxyethylene Zhong Xin phenolic ether -10:5%, nonyl phenol
Polyoxyethylene ether: 5%, fatty alcohol polyoxyethylene ether: 10%, it is successively pumped into reaction kettle, obtains after mixing evenly colourless or light
The fungicide C of yellow.
Material leakage occurs for Guangxi petrochemical plant circulation, and system water oil content goes up from 0.1mg/L to 5.5mg/
L, conventional treatment are to make quality recovery normal as early as possible by a large amount of displacements, breed hidden danger to avoid glutinous mud.It is of the present invention
Urgent water treatment scheme are as follows: add oxidizing bactericide remaining daily, maintain the base of 0.2~0.5mg/L of residual chlorine concentration
On plinth, fungicide C of the present invention is added by concentration 150mg/L to cooling pond.It adds 4 times, passes through repeatedly in two weeks
It cooperates with oxidizing bactericide, system water quality is just made gradually to restore normal without displacement.
Claims (3)
1. a kind of Clear circulating cooling water system non oxidizing bactericide, it is characterised in that:
Component is as follows by weight percentage:
2. a kind of Clear circulating cooling water system non oxidizing bactericide described in accordance with the claim 1, it is characterized in that: it is described
Clear circulating cooling water system be COD be 30~200mg/L or oil content 0.5~10mg/L circulation.
3. a kind of non oxidizing bactericide described in claim 1 is applied in Clear circulating cooling water systematic difference, feature
It is, the non oxidizing bactericide impact is added to system pond, adding concentration is 30~500mg/L, viewing system
Bacterium algae breeds situation determination and adds number, monthly adds in the case of day-to-day operation 1~4 time, under material leakage abnormality, adds
The frequency is 2~6 times.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018114817266 | 2018-12-05 | ||
| CN201811481726 | 2018-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109796069A true CN109796069A (en) | 2019-05-24 |
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ID=66561362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910142706.4A Pending CN109796069A (en) | 2018-12-05 | 2019-02-26 | A kind of Clear circulating cooling water system non oxidizing bactericide |
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| CN (1) | CN109796069A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643439A (en) * | 2019-10-21 | 2020-01-03 | 河北冀研能源科学技术研究院有限公司 | Chemical cleaning agent for generator hydrogen cooler and application |
| CN110835131A (en) * | 2019-12-20 | 2020-02-25 | 甘肃泰升化工科技有限公司 | Oil removing agent for power plant |
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| CN1418830A (en) * | 2002-12-18 | 2003-05-21 | 天津化工研究设计院 | Amphoteric bacteria-killing corrosion-inhibitor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643439A (en) * | 2019-10-21 | 2020-01-03 | 河北冀研能源科学技术研究院有限公司 | Chemical cleaning agent for generator hydrogen cooler and application |
| CN110835131A (en) * | 2019-12-20 | 2020-02-25 | 甘肃泰升化工科技有限公司 | Oil removing agent for power plant |
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