CN110512216A - A method of for the medical fluid of dry coke quenching condenser on-line cleaning, preparation method and on-line cleaning - Google Patents
A method of for the medical fluid of dry coke quenching condenser on-line cleaning, preparation method and on-line cleaning Download PDFInfo
- Publication number
- CN110512216A CN110512216A CN201910815253.7A CN201910815253A CN110512216A CN 110512216 A CN110512216 A CN 110512216A CN 201910815253 A CN201910815253 A CN 201910815253A CN 110512216 A CN110512216 A CN 110512216A
- Authority
- CN
- China
- Prior art keywords
- parts
- acid
- line cleaning
- water
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
Abstract
The invention discloses a kind of methods for the medical fluid of dry coke quenching condenser on-line cleaning, preparation method and on-line cleaning, belong to condenser on-line cleaning technical field.Its medical fluid includes: 40 parts -70 parts of mixed acid, 10 parts -25 parts of corrosion inhibiter, 10 parts -20 parts of bleeding agent, 10 parts -15 parts of defoaming agent, 5 parts -10 parts of chelating agent and 30-50 parts of water by weight；Wherein, mixed acid includes: sulfuric acid, sulfamic acid and 2- carboxyethyl phosphoric acid；Chelating agent includes: hydroxyethylthio succinic acid and diethyl pentetic acid；Bleeding agent are as follows: amber acid ester sodium sulfonate；Defoaming agent is polyoxyethylene octane alkylphenol ether.Medical fluid solubility for scale for dry coke quenching condenser on-line cleaning of the invention is strong, and cleaning effect is good, safety and environmental protection no pollution to the environment.The on-line cleaning method time of the invention is short, at low cost, and descaling rate is greater than 85%, and cleaning effect is significant.
Description
Technical field
The present invention relates to condenser on-line cleaning technical fields, and in particular to one kind is used for dry coke quenching condenser on-line cleaning
Medical fluid, preparation method and on-line cleaning method.
Background technique
In dry coke quenching production system, the condensing equipment in generating set is important heat-exchange apparatus, effect be by
Gas turbine exhaust gas is condensed into a kind of heat exchanger of water, and forms and keep required vacuum.Condensing equipment includes condenser, takes out
Gas device, condensate pump and water circulating pump, wherein condenser is most important component part.Condenser is in entire thermodynamic cycle
Cold source, main function are to form high vacuum in turbine discharge mouth, so that steam is expanded into minimum pressure in steam turbine, increase
Usable enthalpy drop of the steam in steam turbine improves thermal efficiency of cycle；The steam discharge of steam turbine is condensed into water, boiler is sent back to again and follows
Ring；Collect various hydrophobic, reduction loss of steam and water.In recent years, as dry coke quenching produces and uses the deterioration of raw water quality and recycles cold
But the raising of water concentration rate, although taking anti-scaling measures, Condenser Stainless Steel Tube scale formation frequently occurs.Condenser
The main harm of fouling is to reduce the efficiency of unit.After condenser stainless steel fouling, condenser vacuum is reduced, unit efficiency drop
Low, coal consumption increases, and when stainless steel tube seriously corroded will lead to leakage, causes boiler corrosion, fouling or even booster.
Stop cleaning is needed after usual condenser tube fouling, i.e., is repaired the time using large and small, separately adds acid cleaning tank, acid picking pump,
Chemical cleaning is carried out to stainless steel tube；Cleaning solution is mostly that inorganic acid adds corrosion inhibiter to form, exist cleaning not enough thoroughly, it is time-consuming compared with
Long, the unconspicuous problem of cleaning effect.Chemical cleaning under this shutdown status, required temporary system equipment bulky complex, disappears
Consume a large amount of human and material resources and financial resources.In addition, because economic loss caused by stop cleaning generates electricity less is also bigger.If met
To peak of power consumption, unit cannot stop transport, and fouling cannot remove in time, can bring great harm to the safe operation of unit.
Summary of the invention
The object of the present invention is to provide a kind of for the medical fluid of dry coke quenching condenser on-line cleaning, preparation method and online
The method of cleaning, it is unobvious to solve existing condenser cleaning medical fluid cleaning effect, and condenser on-line cleaning is inconvenient asks
Topic.
The technical scheme to solve the above technical problems is that
A kind of medical fluid for dry coke quenching condenser on-line cleaning comprising: by weight, 40 parts -70 parts of mixed acid,
10 parts -25 parts of corrosion inhibiter, 10 parts -20 parts of bleeding agent, 10 parts -15 parts of defoaming agent, 5 parts -10 parts of chelating agent and 30-50 parts of water；
Wherein, mixed acid includes: sulfuric acid, sulfamic acid and 2- carboxyethyl phosphoric acid, and respective mass ratio is 1:(0.8-
1): (0.6-0.8)；
Chelating agent includes: hydroxyethylthio succinic acid and diethyl pentetic acid, and respective mass ratio is 1:(0.1-
0.3)；
Bleeding agent are as follows: amber acid ester sodium sulfonate；Defoaming agent is polyoxyethylene octane alkylphenol ether.
Further, in preferred embodiments of the present invention, the above-mentioned medical fluid for dry coke quenching condenser on-line cleaning,
It include: 50 parts -60 parts of mixed acid, 15 parts -20 parts of corrosion inhibiter, 10 parts -20 parts of bleeding agent, 10 part -15 of defoaming agent by weight
Part, 5 parts -10 parts of Biocidal algae-killing agent and 30-50 parts of water.
Further, in preferred embodiments of the present invention, above-mentioned corrosion inhibiter includes: methenamine, three nitrogen of methyl benzo
Azoles, ammonium thiocyanate and 1,3- diamino thiocarbamide, respective mass ratio are 1:(0.5-0.8): (0.75-0.9): (0.5-1).
The preparation method of the above-mentioned medical fluid for dry coke quenching condenser on-line cleaning, comprising the following steps:
10min-30min is mixed in above-mentioned mixed acid and water at normal temperature, is then successively added under stirring
Enter bleeding agent and 15min-25min is mixed in chelating agent, is eventually adding corrosion inhibiter and defoaming agent continues to stir 20min-
The medical fluid for dry coke quenching condenser on-line cleaning is made in 30min.
A kind of method of dry coke quenching condenser on-line cleaning, using the medical fluid of above-mentioned dry coke quenching condenser on-line cleaning,
The following steps are included:
(1) sterilization slimes dispersant is added with 150mg/L-200mg/L in the condenser circulating water that water temperature is 50 DEG C -60 DEG C
Circular flow 3h-5h after agent；
(2) keeping step (1) recirculated water water temperature is 50 DEG C -60 DEG C, to follow in bad water added with 200-300mg/L it is above-mentioned
Medicament circular flow 5h-10h；Wherein, real-time monitoring is followed bad water pH and is adjusted using organic acid or inorganic acid and maintain recirculated water
PH value in 4-5；
(3) after circulation terminates to step (2), it is first passed through after alkali cleaning neutralizer and is passed through ejected wash water and follows bad cleaning.
In the present invention, inorganic acid includes dilute sulfuric acid, and organic acid includes: hydroxyacetic acid, sulfamic acid or citric acid.
Further, in preferred embodiments of the present invention, the sterilization slimes dispersant agent in above-mentioned steps (1) includes: 2,
- 3- 30 parts -50 parts of amino propionamides of bis- bromo of 2-, 2 parts -5 parts of lauramide and 20 parts -40 parts of water.
The invention has the following advantages:
1, condenser of the invention uses stainless steel heat exchange tube, therefore the present invention uses the mixing of inorganic acid and organic acid
Acid, wherein there is sulfamic acid acidity to have very high dissolubility to dirt by force, precipitating will not be generated in cleaning solution, to metal
Corrosivity is smaller.2- carboxyethyl phosphoric acid is with corrosivity is low, should not fire, is odorless, toxicity is low, Biodegradable is strong, high water solubility
The features such as, there is preferable solvability to the dirt of alkalinous metal class, it is more violent with the compound effects such as calcium, magnesium, it is suitble to use
In cleaning calcium, magnesium salts dirt.Sulfuric acid, sulfamic acid and 2- carboxyethyl phosphoric acid are used in compounding, operative temperature is all 50 DEG C -60
DEG C, operative temperature range is consistent, can pass through the good synergistic function between each component under identical operative temperature, improve clear
Effect is washed, scavenging period is shortened.
2, the present invention uses hydroxyethylthio succinic acid for main sequestering agent, and chelating agent answers supplemented by diethyl pentetic acid
Chelating agent is closed, wherein hydroxyethylthio succinic acid is a kind of excellent calcium and magnesium ion chelating agent, and ethoxy sulphur is added in a medicament
It effectively prevent the calcium salt washed down, magnesium salts and silicide to deposit again in metal surface for succinic acid.Five second of diethyl triamine
Acid is used as polyaminopolycarboxylic group quasi-chelate compound, can assist main sequestering agent under its acid and chelating collective effect, in acid item
Can be synergistic under part, enhance its chelation to calcium and magnesium ion, improves its treatment effect.
3, methenamine, methyl benzotriazazole, ammonium thiocyanate and 1,3- diamino sulphur in the corrosion inhibiter that the present invention uses
Urea all has the advantages of good stability, resistance to oxidation, chlorine-resistant property, is dispersed into dirt with the use of can play simultaneously in a medicament
Ion and inhibition metal erosion.And ammonium thiocyanate therein is one of coke oven gas purification product, is originated from dry coke quenching production, it is former
Expect that source is convenient and sufficient.
4, in on-line cleaning method of the invention, sterilization slimes dispersant agent is added, the microorganism of pipeline and glutinous mud is carried out first
Processing is not allowed also wherein 2, the 2- -3- amino propionamides of bis- bromos used are that oxidative bactericide can reduce processing cost
Easily cause environmental pollution；The lauramide of use has the characteristics that bactericidal effect is prominent, slimes dispersant is thorough, use cost is low,
First processing by sterilizing slimes dispersant agent provides advantage for subsequent on-line cleaning,
5, the medical fluid solubility for scale for dry coke quenching condenser on-line cleaning of the invention is strong, and cleaning effect is good, safety collar
Protect no pollution to the environment.The on-line cleaning method time of the invention is short, at low cost, and descaling rate is greater than 85%, and cleaning effect is significant.
Specific embodiment
Principles and features of the present invention are described with reference to embodiments, the given examples are served only to explain the present invention,
It is not intended to limit the scope of the present invention.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer suggests
Condition carries out.Reagents or instruments used without specified manufacturer is the conventional products that can be obtained by commercially available purchase.
Embodiment 1:
The medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising: by weight, 40 parts of mixed acid,
10 parts of corrosion inhibiter, 10 parts of bleeding agent, 10 parts of defoaming agent, 5 parts of chelating agent and 30 parts of water；
Wherein, mixed acid includes: sulfuric acid, sulfamic acid and 2- carboxyethyl phosphoric acid, and respective mass ratio is 1:0.8:
0.6；
Chelating agent includes: hydroxyethylthio succinic acid and diethyl pentetic acid, and respective mass ratio is 1:0.1；
Bleeding agent are as follows: amber acid ester sodium sulfonate；Defoaming agent is polyoxyethylene octane alkylphenol ether；
Corrosion inhibiter includes: methenamine, methyl benzotriazazole, ammonium thiocyanate and 1, and 3- diamino thiocarbamide is respective
Mass ratio is 1:0.5:0.75:0.5.
The preparation method of the medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising the following steps:
10min is mixed in above-mentioned mixed acid and water at normal temperature, infiltration is then sequentially added under stirring
15min is mixed in agent and chelating agent, is eventually adding corrosion inhibiter and defoaming agent continues to stir 20min, be made solidifying for dry coke quenching
The medical fluid of vapour device on-line cleaning.
Embodiment 2:
The medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising: by weight, 50 parts of mixed acid,
15 parts of corrosion inhibiter, 13 parts of bleeding agent, 11 parts of defoaming agent, 6 parts of chelating agent and 35 parts of water；
Wherein, mixed acid includes: sulfuric acid, sulfamic acid and 2- carboxyethyl phosphoric acid, and respective mass ratio is 1:0.85:
0.65；
Chelating agent includes: hydroxyethylthio succinic acid and diethyl pentetic acid, and respective mass ratio is 1:0.15；
Bleeding agent are as follows: amber acid ester sodium sulfonate；Defoaming agent is polyoxyethylene octane alkylphenol ether；
Corrosion inhibiter includes: methenamine, methyl benzotriazazole, ammonium thiocyanate and 1, and 3- diamino thiocarbamide is respective
Mass ratio is 1:0.6:0.8:0.6.
The preparation method of the medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising the following steps:
10min is mixed in above-mentioned mixed acid and water at normal temperature, infiltration is then sequentially added under stirring
15min is mixed in agent and chelating agent, is eventually adding corrosion inhibiter and defoaming agent continues to stir 20min, be made solidifying for dry coke quenching
The medical fluid of vapour device on-line cleaning.
Embodiment 3:
The medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising: by weight, 55 parts of mixed acid,
17 parts of corrosion inhibiter, 15 parts of bleeding agent, 12 parts of defoaming agent, 7 parts of chelating agent and 40 parts of water；
Wherein, mixed acid includes: sulfuric acid, sulfamic acid and 2- carboxyethyl phosphoric acid, and respective mass ratio is 1:0.9:
0.7；
Chelating agent includes: hydroxyethylthio succinic acid and diethyl pentetic acid, and respective mass ratio is 1:0.2；
Bleeding agent are as follows: amber acid ester sodium sulfonate；Defoaming agent is polyoxyethylene octane alkylphenol ether；
Corrosion inhibiter includes: methenamine, methyl benzotriazazole, ammonium thiocyanate and 1, and 3- diamino thiocarbamide is respective
Mass ratio is 1:0.65:0.85:0.7.
The preparation method of the medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising the following steps:
20min is mixed in above-mentioned mixed acid and water at normal temperature, infiltration is then sequentially added under stirring
20min is mixed in agent and chelating agent, is eventually adding corrosion inhibiter and defoaming agent continues to stir 25min, be made solidifying for dry coke quenching
The medical fluid of vapour device on-line cleaning.
Embodiment 4:
The medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising: by weight, 60 parts of mixed acid,
20 parts of corrosion inhibiter, 17 parts of bleeding agent, 14 parts of defoaming agent, 9 parts of chelating agent and 45 parts of water；
Wherein, mixed acid includes: sulfuric acid, sulfamic acid and 2- carboxyethyl phosphoric acid, and respective mass ratio is 1:0.95:
0.75；
Chelating agent includes: hydroxyethylthio succinic acid and diethyl pentetic acid, and respective mass ratio is 1:0.25；
Bleeding agent are as follows: amber acid ester sodium sulfonate；Defoaming agent is polyoxyethylene octane alkylphenol ether；
Corrosion inhibiter includes: methenamine, methyl benzotriazazole, ammonium thiocyanate and 1, and 3- diamino thiocarbamide is respective
Mass ratio is 1:0.7:0.85:0.85.
The preparation method of the medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising the following steps:
30min is mixed in above-mentioned mixed acid and water at normal temperature, infiltration is then sequentially added under stirring
25min is mixed in agent and chelating agent, is eventually adding corrosion inhibiter and defoaming agent continues to stir 30min, be made solidifying for dry coke quenching
The medical fluid of vapour device on-line cleaning.
Embodiment 5:
The medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising: by weight, 70 parts of mixed acid,
25 parts of corrosion inhibiter, 20 parts of bleeding agent, 15 parts of defoaming agent, 10 parts of chelating agent and 50 parts of water；
Wherein, mixed acid includes: sulfuric acid, sulfamic acid and 2- carboxyethyl phosphoric acid, and respective mass ratio is 1:1:0.8；
Chelating agent includes: hydroxyethylthio succinic acid and diethyl pentetic acid, and respective mass ratio is 1:0.3；
Bleeding agent are as follows: amber acid ester sodium sulfonate；Defoaming agent is polyoxyethylene octane alkylphenol ether；
Corrosion inhibiter includes: methenamine, methyl benzotriazazole, ammonium thiocyanate and 1, and 3- diamino thiocarbamide is respective
Mass ratio is 1:0.8:0.9:1.
The preparation method of the medical fluid for dry coke quenching condenser on-line cleaning of the present embodiment, comprising the following steps:
30min is mixed in above-mentioned mixed acid and water at normal temperature, infiltration is then sequentially added under stirring
25min is mixed in agent and chelating agent, is eventually adding corrosion inhibiter and defoaming agent continues to stir 30min, be made solidifying for dry coke quenching
The medical fluid of vapour device on-line cleaning.
Embodiment 6
The method of the dry coke quenching condenser on-line cleaning of the present embodiment, comprising the following steps:
(1) circular flow after sterilizing slimes dispersant agent is added with 150mg/L in the condenser circulating water that water temperature is 40 DEG C
3h；Wherein, sterilization slimes dispersant agent includes: 30 parts of 2,2-, bis- bromo -3- time amino propionamides, 2 parts of lauramide and 20 parts of water.
(2) keeping step (1) recirculated water water temperature is 50 DEG C, to following in bad water the medicament for adding embodiment 1 with 200mg/L
Circular flow 5h；Wherein, real-time monitoring is followed bad water pH and is adjusted using hydroxyacetic acid and maintain the pH value of recirculated water 4.
(3) after circulation terminates to step (2), it is first passed through after alkali cleaning neutralizer and is passed through ejected wash water and follows bad cleaning.
Embodiment 7
The method of the dry coke quenching condenser on-line cleaning of the present embodiment, comprising the following steps:
(1) circular flow after sterilizing slimes dispersant agent is added with 170mg/L in the condenser circulating water that water temperature is 45 DEG C
4h；Wherein, sterilization slimes dispersant agent includes: -3- 40 parts of amino propionamides of 2,2-, bis- bromo, 3.5 parts of lauramide and water 30
Part.
(2) keeping step (1) recirculated water water temperature is 55 DEG C, to following in bad water the medicament for adding embodiment 1 with 250mg/L
Circular flow 7h；Wherein, real-time monitoring is followed bad water pH and is adjusted using dilute sulfuric acid and maintain the pH value of recirculated water 4.5.
(3) after circulation terminates to step (2), it is first passed through after alkali cleaning neutralizer and is passed through ejected wash water and follows bad cleaning.
Embodiment 8
The method of the dry coke quenching condenser on-line cleaning of the present embodiment, comprising the following steps:
(1) circular flow after sterilizing slimes dispersant agent is added with 200mg/L in the condenser circulating water that water temperature is 50 DEG C
5h；Wherein, sterilization slimes dispersant agent includes: 50 parts of 2,2-, bis- bromo -3- time amino propionamides, 5 parts of lauramide and 40 parts of water.
(2) keeping step (1) recirculated water water temperature is 60 DEG C, to following in bad water the medicament for adding embodiment 1 with 300mg/L
Circular flow 10h；Wherein, real-time monitoring is followed bad water pH and is adjusted using citric acid and maintain the pH value of recirculated water 5.
(3) after circulation terminates to step (2), it is first passed through after alkali cleaning neutralizer and is passed through ejected wash water and follows bad cleaning.
It is tested for technic index before and after embodiment 6-8 on-line cleaning, obtains following data:
Related process achievement data table before and after 1 embodiment 6-8 on-line cleaning of table
By table 1, the result shows that, after the on-line cleaning of embodiment 6-8, the end difference of condenser has obviously condenser
It reduces, and its vacuum degree increases, so that the back pressure for reducing condenser reduces the consumption of fuel, to improve it
Electric load increases unit generation power output.
Electric load amount have obviously
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of medical fluid for dry coke quenching condenser on-line cleaning, characterized in that it comprises: by weight, mixed acid
40 parts -70 parts, 10 parts -25 parts of corrosion inhibiter, 10 parts -20 parts of bleeding agent, 10 parts -15 parts of defoaming agent, 5 parts -10 parts of chelating agent and water
30-50 parts；
Wherein, the mixed acid includes: sulfuric acid, sulfamic acid and 2- carboxyethyl phosphoric acid, and respective mass ratio is 1:(0.8-
1): (0.6-0.8)；
The chelating agent includes: hydroxyethylthio succinic acid and diethyl pentetic acid, mass ratio 1:(0.1-0.3)；
The bleeding agent are as follows: amber acid ester sodium sulfonate；The defoaming agent is polyoxyethylene octane alkylphenol ether.
2. the medical fluid according to claim 1 for dry coke quenching condenser on-line cleaning, characterized in that it comprises: press
Parts by weight meter, 50 parts -60 parts of mixed acid, 15 parts -20 parts of corrosion inhibiter, 10 parts -20 parts of bleeding agent, 10 parts -15 parts of defoaming agent, sterilization
5 parts -10 parts and water 30-50 parts of algicide.
3. -2 described in any item medical fluids for dry coke quenching condenser on-line cleaning according to claim 1, which is characterized in that institute
Stating corrosion inhibiter includes: methenamine, methyl benzotriazazole, ammonium thiocyanate and 1,3- diamino thiocarbamide, respective mass ratio
For 1:(0.5-0.8): (0.75-0.9): (0.5-1).
4. the preparation method of the described in any item medical fluids for dry coke quenching condenser on-line cleaning of claim 1-3, feature
It is, comprising the following steps:
10min-30min is mixed in above-mentioned mixed acid and water at normal temperature, infiltration is then sequentially added under stirring
15min-25min is mixed in saturating agent and chelating agent, is eventually adding corrosion inhibiter and defoaming agent continues to stir 20min-30min, system
It must be used for the medical fluid of dry coke quenching condenser on-line cleaning.
5. a kind of method of dry coke quenching condenser on-line cleaning, which is characterized in that be used for dry coke quenching using as claimed in claim 4
The medical fluid of condenser on-line cleaning, comprising the following steps:
(1) after sterilization slimes dispersant agent being added with 150mg/L-200mg/L in the condenser circulating water that water temperature is 50 DEG C -60 DEG C
Circular flow 3h-5h；
(2) keeping step (1) recirculated water water temperature is 50 DEG C -60 DEG C, to follow in bad water added with 200mg/L-300mg/L it is above-mentioned
Medicament circular flow 5h-10h；Wherein, real-time monitoring is followed bad water pH and is adjusted using organic acid or inorganic acid and maintain recirculated water
PH value in 4-5；
(3) after circulation terminates to step (2), it is first passed through after alkali cleaning neutralizer and is passed through ejected wash water and follows bad cleaning.
6. the method for dry coke quenching condenser on-line cleaning according to claim 5, which is characterized in that killing in step (1)
Bacterium slimes dispersant agent includes: -3- 30 parts -50 parts of amino propionamides of 2,2-, bis- bromo, 2 parts -5 parts of lauramide and 20 parts of water -
40 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815253.7A CN110512216B (en) | 2019-08-30 | 2019-08-30 | Liquid medicine for online cleaning of coke dry quenching condenser, preparation method and online cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815253.7A CN110512216B (en) | 2019-08-30 | 2019-08-30 | Liquid medicine for online cleaning of coke dry quenching condenser, preparation method and online cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110512216A true CN110512216A (en) | 2019-11-29 |
| CN110512216B CN110512216B (en) | 2021-09-24 |
Family
ID=68628575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910815253.7A Active CN110512216B (en) | 2019-08-30 | 2019-08-30 | Liquid medicine for online cleaning of coke dry quenching condenser, preparation method and online cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110512216B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102875A (en) * | 2019-12-05 | 2020-05-05 | 山西太钢不锈钢股份有限公司 | Cleaning formula and cleaning method for air cooler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086065A (en) * | 2007-06-13 | 2007-12-12 | 长沙市永峰水质处理服务有限公司 | Descaling agent for cleaning central air conditioner main machine |
| CN104233329A (en) * | 2014-09-15 | 2014-12-24 | 河北省科学院能源研究所 | Chemical cleaning method of heat exchanger |
| CN104451026A (en) * | 2014-11-17 | 2015-03-25 | 武钢集团昆明钢铁股份有限公司 | Online cleaning and pre-filming method of converter clean circulating water system |
| CN107162231A (en) * | 2017-07-03 | 2017-09-15 | 济南市琦泉热电有限责任公司 | A kind of method that utilization recirculated water agent-feeding treatment improves condenser vacuum |
-
2019
- 2019-08-30 CN CN201910815253.7A patent/CN110512216B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086065A (en) * | 2007-06-13 | 2007-12-12 | 长沙市永峰水质处理服务有限公司 | Descaling agent for cleaning central air conditioner main machine |
| CN104233329A (en) * | 2014-09-15 | 2014-12-24 | 河北省科学院能源研究所 | Chemical cleaning method of heat exchanger |
| CN104451026A (en) * | 2014-11-17 | 2015-03-25 | 武钢集团昆明钢铁股份有限公司 | Online cleaning and pre-filming method of converter clean circulating water system |
| CN107162231A (en) * | 2017-07-03 | 2017-09-15 | 济南市琦泉热电有限责任公司 | A kind of method that utilization recirculated water agent-feeding treatment improves condenser vacuum |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102875A (en) * | 2019-12-05 | 2020-05-05 | 山西太钢不锈钢股份有限公司 | Cleaning formula and cleaning method for air cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110512216B (en) | 2021-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101195919B (en) | Film inhibitor and uses thereof | |
| KR100317967B1 (en) | Oxygen scavenger and boiler water treatment chemical | |
| US4279768A (en) | Service descaler for aqueous systems | |
| US6156129A (en) | Liquid metal cleaner for aqueous system | |
| CN102312244B (en) | Thermal equipment operation cleaning agent and its application | |
| US20050126587A1 (en) | Method of cleaning a steam generator of a pressurized water reactor | |
| CN110512216A (en) | A method of for the medical fluid of dry coke quenching condenser on-line cleaning, preparation method and on-line cleaning | |
| CN110921852A (en) | Energy-saving composite boiler water conditioner for drum boiler and preparation method thereof | |
| CN111334802B (en) | Film-forming amine corrosion inhibitor suitable for nuclear power plant secondary circuit shutdown maintenance and method for reducing secondary circuit corrosion during nuclear power plant shutdown | |
| JPS5932196B2 (en) | Hydrogen sulfide reduction method in geothermal steam systems | |
| RU2704169C1 (en) | Method of cleaning and passivation of inner surface of pipes with successive action of chemical reagent and steam-oxygen mixture | |
| CN112815767A (en) | Cleaning method of seawater desalination device | |
| CN114477479A (en) | Online scale preventing and removing agent for circulating water | |
| JPH0426784A (en) | Corrosion inhibitor for high temperature water system | |
| US5714118A (en) | Method and composition for inhibiting corrosion | |
| JP5862193B2 (en) | Method for preventing iron scale in water side can of steam generator | |
| CN111560291A (en) | Efficient dispersant for special equipment | |
| RU2033396C1 (en) | Water treatment method for drum-type boilers | |
| CN116693072B (en) | water treatment agent | |
| CN100528762C (en) | Oxygen scavenger and boiler water treatment chemical | |
| Li et al. | Investigation of chemical cleaning of supercritical superheater oxide scale | |
| CN112458466B (en) | Chemical cleaning agent for condenser of in-service thermal power generating unit | |
| CN113185007B (en) | Composite chemical for treating water in drum boiler and preparation method thereof | |
| CN115072886B (en) | Energy-saving organic treating agent for boiler water and preparation method thereof | |
| WO2006065756A1 (en) | Process for removing dissolved oxygen from an aqueous system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Dazhou City, Sichuan Province, 635000 River Road District No. 25 Patentee after: Sichuan Daxing Energy Co.,Ltd. Address before: Dazhou City, Sichuan Province, 635000 River Road District No. 25 Patentee before: SICHUAN DAXING ENERGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |