CN105016489B - A kind of composition, its preparation method and its application method for water system - Google Patents
A kind of composition, its preparation method and its application method for water system Download PDFInfo
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Abstract
The invention belongs to water treatment field.In particular it relates to a kind of composition, its preparation method and its application method for water system.The composition for water system really is able to realize good antiscale property, anticorrosion, anti-dehydration and disables rear defence and get rusty the composition for water system of function, at the same equipment investment can be reduced, it is energy-conservation, efficient, environmentally friendly.
Description
Technical field
The invention belongs to water treatment field.In particular it relates to a kind of composition for water system, its preparation side
Method and its application method.
Background technology
Most of heating moisturizing of heating system is all undressed running water, and steel is in running water under normal temperature condition
In serious corrosion phenomenon occurs, when water temperature heating is to 60~90 DEG C, it may appear that scale formation.Generally, in a heating
After phase, can all there is different degrees of fouling and corrosion in heat exchanger, pipeline and the radiator of heat exchange station and the pipeline of user, manage
Rust knurl in road and radiator reduces latus rectum, increases heat-transfer fluid resistance, influences heat transfer efficiency, shortens the use of heating facility
In the life-span, increase maintenance cost, substantially reduce heating effect.
For heat supply unit, to reach energy-conservation, the purpose of water saving, it is necessary to accomplish to make equipment good antiscale property, anticorrosion, anti-dehydration
Got rusty (four prevent) with rear defence is disabled.
There are following three kinds of antiscale approach what heat supply heating system was used at present.The first, simple sodium ion exchange softening
Method.Such a method antiscale, but essence antiscale can not be accomplished.The whole nation there are about 70% boiler using the unit of this method and heat exchange
Device fouling.Moreover, the corrosivity of softened water is also stronger than running water, whole water system corrosion is caused to aggravate.Second, softened water is auxiliary
Plus medication.Such a method is to solve the corrosion problems of softened water, and additional antiscale, prevent because softened water is unqualified
And causing equipment scaling, current large-scale centralized heat supply and district heating all select this method for treating water of softened water dosing, but need
Want the softening water treatment system of additional costly.The third, running water medication, i.e. boiler water conditioning method and secondary pipe
Net medication.This method is only applicable to the secondary heat exchange heating of below 7MW direct supply type hot-water boiler and any heat output
System.It is more than 7MW hot-water boiler for heat output, be because of stove, because of water, selection method for treating water of suiting measures to local conditions.But it is existing
It is not strong that scale preventative adapts to water quality ability.
The mainly feedwater deaeration method used at present in heat supply heating system.National standard 1576-2001《Industrial Boiler water
Matter》Standard requires that deoxygenation is wanted in the feedwater for using pot outer chemical to handle, that is, the dissolved oxygen≤0.1mg/L fed water, this standard causes
The water supply system of national central heating has all installed various deaeration plants.But due to heat supply heating water system in operation except
Have outside oxygen corrosion, also have with CO2Corrosion and underdeposit corrosion, therefore this method had both increased equipment investment, operating cost, produced again each
Sequelae is planted, is to lose more than gain.Make-up water deoxygenation is only given, the etching problem of circulation is can't resolve.And stopping warming up
Interim, water filling maintenance has prevented oxygen corrosion, and the electrochemical corrosion that water body is formed in itself is than fouling corrosion problem that heating period is formed
It is also serious.
The anti-dehydration measure used at present to heat supply heating system mainly adds colouring agent, stink agent into water system.
General colouring agent is all based on inorganic dyestuff, equipment scaling to be caused after adding, and aggravate corrosion more.Stink agent to water at
The healthy unfavorable of operating personnel is managed, the agent of part stink can also aggravate equipment corrosion.
A kind of it really be able to realize good antiscale property, anticorrosion, anti-dehydration accordingly, it would be desirable to develop and disable rear defence and get rusty function
For the composition of water system, while equipment investment, energy-conservation, efficient, environmental protection can be reduced.
The content of the invention
One object of the present invention is provides a kind of composition for water system, and its is composed of the following components：
Natrium nitrosum, the 1wt% of 0.5-1 parts by weight ammoniacal liquor, the sodium benzoate of 1-5 parts by weight, the 3-8 weights of 1-3 parts by weight
Measure the sodium hydroxide, the sodium oxalate of 4-12 parts by weight, the ethylene glycol PULLRONIC F68 monoalkyl of 0.1-2 parts by weight of part
Ether, the semicarbazide hydrochloride of 1-5 parts by weight, the sodium molybdate of 5-18 parts by weight, the BTA of 1-5 parts by weight, 3-12 parts by weight
Methenamine, the water of the colouring agent of 1-3 parts by weight and 8-65 parts by weight.
Preferably, the composition of the present invention for water system is composed of the following components：
The natrium nitrosum of 1-1.5 parts by weight, the 1wt% ammoniacal liquor of 0.5-0.8 parts by weight, the sodium benzoate of 1-3 parts by weight, 3-5
Sodium hydroxide, the sodium oxalate of 4-11 parts by weight, the ethylene glycol PULLRONIC F68 list alkane of 0.1-1 parts by weight of parts by weight
Base ether, the semicarbazide hydrochloride of 1.1-4.5 parts by weight, the sodium molybdate of 5-16 parts by weight, the BTA of 1-4.5 parts by weight,
The water of the methenamines of 3.5-9 parts by weight, the colouring agent of 1-1.8 parts by weight and 8.5-30 parts by weight.
Most preferably, the composition of the present invention for water system, its is composed of the following components：
The natrium nitrosum of 1 parts by weight, the 1wt% ammoniacal liquor of 0.5 parts by weight, the sodium benzoate of 1 parts by weight, the hydrogen-oxygen of 3 parts by weight
Change sodium, the sodium oxalate of 5 parts by weight, ethylene glycol PULLRONIC F68 monoalky lether, the salt of 1.1 parts by weight of 0.1 parts by weight
Sour semicarbazides, the sodium molybdate of 5 parts by weight, the BTA of 1 parts by weight, the methenamine of 3.5 parts by weight, 1 parts by weight
The water of toner and 8.5 parts by weight；Or
The natrium nitrosum of 1.3 parts by weight, the 1wt% ammoniacal liquor of 0.65 parts by weight, the sodium benzoate of 1.5 parts by weight, 3.5 weight
Part sodium hydroxide, the sodium oxalate of 4 parts by weight, the ethylene glycol PULLRONIC F68 monoalky lether of 0.15 parts by weight, 1.5
The semicarbazide hydrochloride of parts by weight, the sodium molybdate of 7.5 parts by weight, the BTA of 1.5 parts by weight, the methenamine of 4 parts by weight,
The water of the colouring agent of 1.5 parts by weight and 12 parts by weight；Or
The natrium nitrosum of 1.5 parts by weight, the 1wt% ammoniacal liquor of 0.8 parts by weight, the sodium benzoate of 3 parts by weight, the hydrogen of 5 parts by weight
Sodium oxide molybdena, the sodium oxalate of 11 parts by weight, the ethylene glycol PULLRONIC F68 monoalky lethers of 1 parts by weight, 4.5 parts by weight
Semicarbazide hydrochloride, the sodium molybdate of 16 parts by weight, the BTA of 4.5 parts by weight, the methenamine of 9 parts by weight, 1.8 parts by weight
Colouring agent and 30 parts by weight water.
Wherein, the colouring agent is phenolphthalein.
Preferably, the outward appearance of the composition for water system is pale red thick liquid；It is described for water system when inciting somebody to action
When the composition of system is diluted to the aqueous solution by 10g/L, pH value >=14 of the aqueous solution.
Preferably, the water system is heating system or industrial cooling circulating water system.
The heating system includes heat exchange station or hot-water boiler, water supply tank, return main, circulating pump, water main and dissipated
Hot device etc.；The industrial cooling circulating water system includes cooling tower, collecting-tank, return main, circulating pump, water main, dosing
System, cold exchange device etc..
Another object of the present invention is provides the preparation method of the composition for water system, and methods described is included such as
Lower step：
1st, by the natrium nitrosum of 1-3 parts by weight, the sodium hydroxide of 3-8 parts by weight, the BTA of 1-5 parts by weight, 3-
The methenamine of 12 parts by weight is sequentially added in 50 DEG C of water, stirs and the first liquid is made；
2nd, by the 1wt% of 0.5-1 parts by weight ammoniacal liquor, the sodium benzoate of 1-5 parts by weight, the sodium oxalate of 4-12 parts by weight,
Ethylene glycol PULLRONIC F68 monoalky lether, the sodium molybdate of 5-18 parts by weight, the salt of 1-5 parts by weight of 0.1-2 parts by weight
Sour semicarbazides, the colouring agent of 1-3 parts by weight are sequentially added in normal-temperature water, stir and second liquid is made；
3rd, by obtained first liquid and second liquid hybrid filtering and insoluble matter impurity is removed, obtaining described is used for water system
Composition, wherein, the total amount of water used in step 1 and step 2 is 8-65 parts by weight.
Preferably, the colouring agent is phenolphthalein；
Preferably, in the step 3, insoluble matter is removed using the filtering of 200 mesh stainless steel filtering nets.
A further object of the present invention is application method of the offer according to the composition of the present invention for water system,
It the described method comprises the following steps：
1st, the not necessarily hot-water boiler or heat exchange station or cold exchange device of cleaning water system；Preferably, entered using hydrochloric acid
Row cleaning, while cleaning whole water system；
2nd, the composition for water system is added in the return main of water system or medicine system, it is described to be used for water
The dosage of the composition of system is the 1-5wt ‰, preferably system total Water of system total Water 5wt ‰.
3rd, blowdown is carried out to water system, blowdown flow rate should control below the 0.1wt% in system total Water.
Preferably, when the pH value≤8.5 of water system reclaimed water, institute is added in the water supply tank of water system or in return main
State the composition for water system.
Preferably, the water system is heating system or industrial cooling circulating water system.
The heating system includes heat exchange station or hot-water boiler, water supply tank, return main, circulating pump, water main and dissipated
Hot device etc.；The industrial cooling circulating water system includes cooling tower, collecting-tank, return main, circulating pump, water main, dosing
System, cold exchange device etc..
A further object of the present invention makes to provide according to the another of the composition for water system of the present invention
With method, methods described includes：During water system Shut-down Protection, described be used for is added by the 1-5wt ‰ of water system total Water
The composition of water system, and closed system.
Preferably, methods described further comprises, when running first, in the return main of water system or medicine system
Add the 1-5wt ‰ of the water system total Water composition for water system；When water system is normally run, in water system
Water supply tank in or return main in dosing system rate of water make-up 1-5wt ‰ described composition.
Preferably, the water system is heating system or industrial cooling circulating water system.
Beneficial effect
Composition disclosed in the present application for water system can effectively solve heating system and industrial cooling circulating water system
Corrosion and scaling during operation, derust and usurp the water loss problem that hot water is caused, the anti-life of system can be carried out during disabling
Rust protection.Conventional feed-water deaerator and ion-exchanger is may replace, can also be used cooperatively with Na-ion exchanger, reduction operation
Cost, improves water treatment efficiency, and this product Applicable temperature scope is wide：Less than or equal to 95 DEG C.
Composition disclosed in the present application for water system is that this is equal to whole water system scale removal, derusting, except foundry loam
The negative electrode of corrosion cell is removed, only remaining metal anode, cannot occur electrochemical corrosion.Simultaneously densification is provided to metal
Without heat resistance type diaphragm, prevent metal from being contacted with the external world, block the flowing of electronics, fundamentally anticorrosion.Further, since iron
Passivation region is in the range of pH value is 9~13, and the composition for water system improves the pH value of water system, so as to enter
One step plays a part of antirust.It can play a part of effectively saving using the composition disclosed in the present application for water system.
Firstth, use and run for the composition of water system in water system, can substantially be removed in whole water system within two weeks
Old dirt, old rust.Cleared old dirt, old rust in one month.Due to removing dirt and rust on boiler and heat transmission equipment, only this is a little flat
More than 20% can be saved.Secondth, artificial dehydration can be effectively prevented using the composition for water system, significantly saved.The
3rd, dirt, the rust in whole water system are removed using the composition for water system, reduces the running resistance of water system, water
Dynamic balance is improved, therefore is also significantly saved.4th, due to removing the dirt in water system, rust, make metal heat-conducting effect good, change
Hot device steel plate not burning, so as to reach energy-conservation.After the composition for being used for water system using operation, total energy-conservation about 10%~
30%。
Present inventor has found that sodium ion exchange regeneration liquid waste is serious after the investigation large, medium and small heating system in Xinjiang
Polluted underground water.It is Green Product and the composition disclosed in the present application for water system does not contain environmental pollutants.
Further, since run for water system composition can thorough anti-corrosion, therefore can cancel in heat supply heating water system
Deoxygenation facility.Both deaeration plant investment had been saved, deoxygenation operation funds are saved again.
Embodiment
With reference to specific embodiment, the present invention is further elaborated, but the present invention is not limited to these embodiments.
Prepare embodiment
Embodiment 1
Table 1
| Component | Consumption |
| Natrium nitrosum | 10kg |
| Ammoniacal liquor（1wt%） | 5kg |
| Sodium benzoate | 10kg |
| Sodium hydroxide | 30kg |
| Sodium oxalate | 50kg |
| Ethylene glycol PULLRONIC F68 monoalky lether | 1kg |
| Semicarbazide hydrochloride | 11kg |
| Sodium molybdate | 50kg |
| BTA | 10kg |
| Methenamine | 35kg |
| Phenolphthalein | 10kg |
| Water | 85kg |
1st, natrium nitrosum, sodium hydroxide, BTA, methenamine are sequentially added by the component and consumption of table 1
In 50kg50 DEG C of water, stir and the first liquid is made；
2nd, by ammoniacal liquor, sodium benzoate, sodium oxalate, ethylene glycol PULLRONIC F68 monoalky lether, semicarbazide hydrochloride,
Sodium molybdate, phenolphthalein are sequentially added in normal temperature 35kg water, stir and second liquid is made；
3rd, obtained first liquid and second liquid are mixed, removing insoluble matter using the filtering of 200 mesh stainless steel filtering nets is
The composition for water system is made.
Embodiment 2
Table 2
| Component | Consumption |
| Natrium nitrosum | 13kg |
| Ammoniacal liquor（Concentration is 1wt%） | 6.5kg |
| Sodium benzoate | 15kg |
| Sodium hydroxide | 35kg |
| Sodium oxalate | 40kg |
| Ethylene glycol PULLRONIC F68 monoalky lether | 1.5kg |
| Semicarbazide hydrochloride | 15kg |
| Sodium molybdate | 75kg |
| BTA | 15kg |
| Methenamine | 40kg |
| Phenolphthalein | 15kg |
| Water | 120kg |
Preparation method is same as Example 1.
Embodiment 3
Table 3
| Component | Consumption |
| Natrium nitrosum | 15kg |
| Ammoniacal liquor（Concentration is 1wt%） | 8kg |
| Sodium benzoate | 30kg |
| Sodium hydroxide | 50kg |
| Sodium oxalate | 110kg |
| Ethylene glycol PULLRONIC F68 monoalky lether | 10kg |
| Semicarbazide hydrochloride | 45kg |
| Sodium molybdate | 160kg |
| BTA | 45kg |
| Methenamine | 90kg |
| Phenolphthalein | 18kg |
| Water | 300kg |
Preparation method is same as Example 1.
EXPERIMENTAL EXAMPLE
Following experimental data is in Karamay Petrochemical Company using the obtained composition for water system of embodiment 3
The data tested in thermoelectricity subsidiary factory heating system.
1st, corrosion test and antisludging test（Rate of corrosion, corrosion inhibition rate and scale inhibition performance）
Table 4
Note：1st, rate of corrosion and corrosion inhibition rate are surveyed by standard GB/T/T18175 (measure of water treatment agent corrosion inhibition)
Fixed, scale inhibition performance is measured by standard GB/T/T16632.
2nd, composition adds concentration and referred to：Composition dosage and the weight ratio (unit of system water supplement amount：wt‰).
3rd, in four groups of test datas 0 ‰ be laboratory test；Other three groups at the scene monitoring heat exchanger in gather
Data, the testing time is respectively（2011）January 20 day-2 month 20,2 months 21-March 20,21-April 25 March；Table
Lacing film quality (g) is the average value for the data that three above testing time section is obtained before and after experiment in 4.
Wherein,The rate of corrosion X represented with mm/a1Calculated by formula (1)：
X1=（8760×(m-m0)×10）/ s × p × t ... formulas (1)
In formula (1), the quality before m---- test pieces experiment, g；
m0--- the quality after-test piece experiment after pickling, g；
The surface area of s---- test pieces, 20cm2；
The density 7.85g/cm of p---- test pieces3；
T---- test periods, h；
8760---- and one year suitable hourage, h/a；
Millimeter suitable with 1cm 10----, mm/cm.
The corrosion inhibition rate X being expressed as a percentage2Calculated by formula (2)：
X2=(（X0-X1）/X0The formula of) × 100 ... (2)
In formula (2), X0--- the rate of corrosion of-test piece blank test（The same formula of computational methods (1)）, mm/a；
X1The rate of corrosion of the test piece of ----add water inorganic agent (composition for being used for water system)（The same formula of computational methods (1)）,
mm/a。
The scale inhibition performance X being expressed as a percentage3Calculated by formula (3)：
X3=(（X1-X0）/（0.240-X0)）× 100 ... formulas (3)
In formula (3), X0----do not add water the inorganic agent composition of water system (be used for) the experiment of blank test solution after calcium from
Sub- concentration values, mg/mL；
X1Calcium ion concentration numerical value after ----add water inorganic agent (being used for the composition of water system) test solution experiment, mg/mL；
Calcium ion concentration numerical value in the test solution configured before 0.240---- experiments, mg/mL.
Test result in table 4 can be seen that the composition described herein for water system have it is excellent
Corrosion Protection, rate of corrosion average value is respectively less than 0.1mm/a, corrosion inhibition rate about 99%；Its scale-preventing performance is excellent, scale inhibition performance
It is all higher than 90%.
2nd, water saving section vapour：Testing time is 20 days-April 25 January in 2011（Moisturizing uses fresh water, is being returned by 5wt ‰
Composition made from embodiment 3 is added in supply mains）, compared with the same period in 2010（Moisturizing uses demineralized water, and the application is not used
Described composition）.（System water circulation amount is 200m per hour3/h）
Table 5
Wherein,The percentage of water loss X being expressed as a percentage4Calculated by formula (4)：
X4=XMoisturizing/XSystem circulation amount× 100 ... formulas (4)
In formula (4)：XMoisturizingThe rate of water make-up of ----per hour, m3/h；
XSystem circulation amountThe system water circulation amount of ----per hour, m3/h。
From the results shown in Table 5, it can play obvious anti-using composition of the present invention in water system
Dehydration effect, it is that percentage of water loss can be controlled in less than 2% to add the composition descendant by moisturizing.
3rd, the measure of other performance parameters and calculating：
Using the obtained composition for water system of embodiment 3 Karamay Petrochemical Company heating system of thermoelectricity subsidiary factory
Data below is tested in system (composition dosage is the 5wt ‰ of system water supplement amount)：
Table 6
Note 1, X0 Data come from laboratory（It is shown in Table 4）
2、X1 Data come from field monitoring heat exchanger
Wherein,The performance protective rate X that gets rusty is prevented during the deactivation being expressed as a percentage5Calculated by formula (5)：
X5=(（X0-X1）/X0The formula of) × 100 ... (5)
In formula (5), X0The rate of corrosion of test piece blank test during ----disable（The same formula of computational methods (1)）, unit：mm/
a；
X1Add the rate of corrosion of the test piece of the composition of embodiment 3 during ----disable（The same formula of computational methods (1)）, unit：
mm/a。
Claims (8)
1. a kind of composition for water system, its is composed of the following components：
The natrium nitrosum of 1-3 parts by weight, the 1wt% of 0.5-1 parts by weight ammoniacal liquor, the sodium benzoate of 1-5 parts by weight, 3-8 weight
Part sodium hydroxide, the sodium oxalate of 4-12 parts by weight, the ethylene glycol PULLRONIC F68 monoalky lether of 0.1-2 parts by weight,
The semicarbazide hydrochloride of 1-5 parts by weight, the sodium molybdate of 5-18 parts by weight, the BTA of 1-5 parts by weight, the crow of 3-12 parts by weight
The water of Lip river tropine, the colouring agent of 1-3 parts by weight and 8-65 parts by weight,
Wherein, the colouring agent is phenolphthalein, and the outward appearance of the composition is pale red thick liquid；Pressed when by the composition
When 10g/L is diluted to the aqueous solution, pH value >=14 of the aqueous solution；The water system is heating system or industry cooling circulating water
System,
Also, the composition is prepared by a kind of method, the described method comprises the following steps：
Step 1)：By the natrium nitrosum of 1-3 parts by weight, the sodium hydroxide of 3-8 parts by weight, the BTA of 1-5 parts by weight, 3-
The methenamine of 12 parts by weight is sequentially added in 50 DEG C of water, stirs and the first liquid is made；
Step 2)：By the 1wt% of 0.5-1 parts by weight ammoniacal liquor, the sodium benzoate of 1-5 parts by weight, the sodium oxalate of 4-12 parts by weight,
Ethylene glycol PULLRONIC F68 monoalky lether, the sodium molybdate of 5-18 parts by weight, the salt of 1-5 parts by weight of 0.1-2 parts by weight
Sour semicarbazides, the colouring agent of 1-3 parts by weight are sequentially added in normal-temperature water, stir and second liquid is made；
Step 3)：By obtained first liquid and second liquid hybrid filtering and insoluble matter is removed, obtain described for water system
Composition, wherein, the total amount of water used in step 1 and step 2 is 8-65 parts by weight.
2. composition according to claim 1, its is composed of the following components：
The natrium nitrosum of 1-1.5 parts by weight, the 1wt% ammoniacal liquor of 0.5-0.8 parts by weight, the sodium benzoate of 1-3 parts by weight, 3-5 weights
Measure the sodium hydroxide, the sodium oxalate of 4-11 parts by weight, the ethylene glycol PULLRONIC F68 monoalkyl of 0.1-1 parts by weight of part
Ether, the semicarbazide hydrochloride of 1.1-4.5 parts by weight, the sodium molybdate of 5-16 parts by weight, the BTA of 1-4.5 parts by weight, 3.5-9
The water of the methenamines of parts by weight, the colouring agent of 1-1.8 parts by weight and 8.5-30 parts by weight.
3. composition according to claim 2, its is composed of the following components：
The natrium nitrosum of 1 parts by weight, the 1wt% ammoniacal liquor of 0.5 parts by weight, the sodium benzoate of 1 parts by weight, the hydroxide of 3 parts by weight
Sodium, the sodium oxalate of 5 parts by weight, ethylene glycol PULLRONIC F68 monoalky lether, the hydrochloric acid of 1.1 parts by weight of 0.1 parts by weight
Semicarbazides, the sodium molybdate of 5 parts by weight, the BTA of 1 parts by weight, the methenamine of 3.5 parts by weight, the coloring of 1 parts by weight
Agent and the water of 8.5 parts by weight；Or
The natrium nitrosum of 1.3 parts by weight, the 1wt% ammoniacal liquor of 0.65 parts by weight, the sodium benzoate of 1.5 parts by weight, 3.5 parts by weight
Sodium hydroxide, the sodium oxalate of 4 parts by weight, the ethylene glycol PULLRONIC F68 monoalky lether of 0.15 parts by weight, 1.5 weight
Part semicarbazide hydrochloride, the sodium molybdate of 7.5 parts by weight, the BTA of 1.5 parts by weight, the methenamine of 4 parts by weight, 1.5
The water of the colouring agent of parts by weight and 12 parts by weight；Or
The natrium nitrosum of 1.5 parts by weight, the 1wt% ammoniacal liquor of 0.8 parts by weight, the sodium benzoate of 3 parts by weight, the hydrogen-oxygen of 5 parts by weight
Change sodium, the sodium oxalate of 11 parts by weight, ethylene glycol PULLRONIC F68 monoalky lether, the salt of 4.5 parts by weight of 1 parts by weight
Sour semicarbazides, the sodium molybdate of 16 parts by weight, the BTA of 4.5 parts by weight, the methenamine of 9 parts by weight, 1.8 parts by weight
The water of colouring agent and 30 parts by weight.
4. composition according to claim 1, wherein,
In the step 3) in, remove insoluble matter using the filtering of 200 mesh stainless steel filtering nets.
5. the application method of composition as claimed in claim 1, the described method comprises the following steps：
Step 1), the not necessarily hot-water boiler or heat exchange station or cold exchange device of cleaning water system；
Step 2), the group as claimed in claim 1 for water system is added in the return main of water system or medicine system
Compound, the dosage of the composition for water system is the 1-5wt ‰ of system total Water；
Step 3), blowdown is carried out to water system.
6. application method according to claim 5, wherein,
The water system is heating system or industrial cooling circulating water system；The heating system includes heat exchange station or water bath
Stove, water supply tank, return main, circulating pump, water main and radiator；The industrial cooling circulating water system include cooling tower,
Collecting-tank, return main, circulating pump, water main, medicine system, cold exchange device；
In step 1) in, cleaned using hydrochloric acid, while cleaning whole water system；
In step 2) in, the dosage of the composition for water system is the 5wt ‰ of system total Water, when water system reclaimed water
PH value≤8.5 when, the composition is added in the water supply tank of water system or return main.
7. the application method of composition as claimed in claim 1, methods described includes：During water system Shut-down Protection, press
The 1-5wt ‰ of water system total Water adds composition as claimed in claim 1, and closed system.
8. application method according to claim 7,
Wherein, methods described further comprises, when running again, adds in the water supply tank of water system or in return main and is
The 1-5wt ‰ of system total Water composition as claimed in claim 1；When water system is normally run, in the moisturizing of water system
The 1-5wt ‰ of dosing system rate of water make-up composition as claimed in claim 1 in case or in return main.
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|---|---|---|---|---|
| CN1539908A (en) * | 2003-10-29 | 2004-10-27 | 杨毅男 | High performance corrosion inhibitor for agent of removing snow made from organic or non-organic salts and composite salts |
| CN1854090A (en) * | 2005-04-25 | 2006-11-01 | 上海万森水处理有限公司 | Antioxidant corrosion-proofing and antisludging agent of boiler |
| CN100513332C (en) * | 2006-08-18 | 2009-07-15 | 中国石油化工股份有限公司 | Corrosion inhibitor used for closed circulation water system |
| CN101607764B (en) * | 2009-07-21 | 2011-05-11 | 武汉理工大学 | Phosphate-free corrosion inhibition antisludging agent and preparation method thereof |
| CN102079586B (en) * | 2009-11-26 | 2013-04-10 | 沈阳工业大学 | Novel scale and corrosion inhibitor for circular cooling water treatment |
| CN102408162B (en) * | 2010-09-21 | 2013-06-19 | 中国石油化工股份有限公司 | Phosphorus-free corrosion and scale inhibitor used for industrial circulation cooling water |
| CN102167409A (en) * | 2011-01-27 | 2011-08-31 | 朱建清 | Sealed circulating water additive |
| CN102745825A (en) * | 2011-04-22 | 2012-10-24 | 中国石油化工股份有限公司 | High-efficiency low-phosphorus corrosion and scale inhibiting dispersant and its preparation method |
| CN102351328B (en) * | 2011-09-16 | 2012-12-12 | 天津若泽化学技术有限公司 | Green total organic carbon steel scale and corrosion inhibitor for circulating cooling water system |
| CN102633372B (en) * | 2012-04-23 | 2017-04-12 | 国家海洋局天津海水淡化与综合利用研究所 | Phosphate-free copper alloy composite corrosion inhibitor for seawater circulating cooling water, and preparation and using methods of phosphate-free copper alloy composite corrosion inhibitor |
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2014
- 2014-04-18 CN CN201410157647.5A patent/CN105016489B/en active Active
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