CN114873746A - Scale inhibition method for boiler - Google Patents
Scale inhibition method for boiler Download PDFInfo
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- CN114873746A CN114873746A CN202210397918.9A CN202210397918A CN114873746A CN 114873746 A CN114873746 A CN 114873746A CN 202210397918 A CN202210397918 A CN 202210397918A CN 114873746 A CN114873746 A CN 114873746A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 20
- 239000002455 scale inhibitor Substances 0.000 claims abstract description 66
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 230000007797 corrosion Effects 0.000 claims abstract description 33
- 238000005260 corrosion Methods 0.000 claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 239000003112 inhibitor Substances 0.000 claims abstract description 24
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 19
- 239000010452 phosphate Substances 0.000 claims abstract description 19
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 19
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 19
- 239000000661 sodium alginate Substances 0.000 claims abstract description 19
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 19
- 239000001488 sodium phosphate Substances 0.000 claims abstract description 19
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims abstract description 19
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims abstract description 19
- 235000019801 trisodium phosphate Nutrition 0.000 claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 229940123973 Oxygen scavenger Drugs 0.000 claims description 18
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000002401 inhibitory effect Effects 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims description 5
- PXAJQJMDEXJWFB-UHFFFAOYSA-N acetone oxime Chemical compound CC(C)=NO PXAJQJMDEXJWFB-UHFFFAOYSA-N 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000012964 benzotriazole Substances 0.000 claims description 5
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 5
- XEVRDFDBXJMZFG-UHFFFAOYSA-N carbonyl dihydrazine Chemical compound NNC(=O)NN XEVRDFDBXJMZFG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/105—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
- C02F5/125—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
- C02F5/145—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Abstract
The invention discloses a scale inhibition method of a boiler, which relates to the technical field of industrial boilers and comprises the following steps: extracting a small amount of boiler water at a boiler chemical feed port in advance, collecting index information of the boiler water, and acquiring the concentration of a scale inhibitor; taking the outlet end of the deoxidizing port of the boiler as a chemical adding port, and adding a scale inhibitor, wherein the scale inhibitor mainly comprises pure water, sodium alginate, organic phosphate, trisodium phosphate, sodium hydroxide, a deoxidizing agent and a metal corrosion inhibitor; monitoring the action condition of the scale inhibitor and adjusting the concentration of the scale inhibitor. The invention has excellent corrosion and scale inhibition performance, can form a layer of protective film on the surface of metal, greatly reduces the corrosion rate, and has the advantages of simple operation, thorough scale removal, convenient cleaning, safety to equipment, safety and environmental protection.
Description
Technical Field
The invention relates to the technical field of industrial boilers, in particular to a scale inhibition method of a boiler.
Background
The boiler system inevitably generates scale and rust scale in the long-term use process, so that the heat efficiency is reduced by orders of magnitude. The evaporation of water gradually increases the salt content in the boiler system, and the tendency of scaling and precipitation of calcium carbonate on the heat transfer surface is increased by the desorption and dissipation of carbon dioxide in the water. After water scale and rust scale are generated, a large amount of energy is wasted, and the service life of the whole system is greatly shortened due to rusting of pipelines, equipment and the like, so that a lot of unnecessary loss is caused. Moreover, the tube wall of some boiler is very thin and thin, and the thickness of the dirt should be strictly controlled.
Therefore, the boiler system needs to be cleaned regularly and embroidered to operate normally. However, because industrial systems are usually bulky and difficult to replace, cleaning, corrosion and scale inhibiting substances which are not easy to corrode need to be found, so that the cleaning and protecting effects are exerted, and chemical damage is not generated to the systems.
At present, the corrosion and scale inhibitor of a single compound is more frequently used, and the problem of corrosion and scale formation existing in a water treatment system at the same time is difficult to completely solve.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention provides a scale inhibition method of a boiler aiming at the problems in the related art, and aims to overcome the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
a scale inhibition method of a boiler comprises the following steps:
step S1, extracting a small amount of boiler water at a boiler chemical feed port in advance, collecting index information of the boiler water, and acquiring the concentration of the added scale inhibitor;
step S2, adding a scale inhibitor by taking the outlet end of the deoxidizing port of the boiler as a chemical adding port, wherein the scale inhibitor contains pure water, sodium alginate, organic phosphate, trisodium phosphate, sodium hydroxide, an deoxidizing agent and a metal corrosion inhibitor;
and step S3, monitoring the action condition of the scale inhibitor and adjusting the concentration of the scale inhibitor.
Wherein the index information includes: pH information, alkalinity information, hardness information, dissolved oxygen information, salt content information, iron content information, and oil content information.
The scale inhibitor comprises the following components in parts by weight:
20-40 parts of pure water, 6-12 parts of sodium alginate, 2-4 parts of organic phosphate, 10-20 parts of trisodium phosphate, 0.2-0.4 part of sodium hydroxide, 3-5 parts of an oxygen scavenger and 0.6-0.8 part of a metal corrosion inhibitor.
The scale inhibitor comprises the following components in parts by weight:
20 parts of pure water, 6 parts of sodium alginate, 2 parts of organic phosphate, 10 parts of trisodium phosphate, 0.2 part of sodium hydroxide, 3 parts of oxygen scavenger and 0.6 part of metal corrosion inhibitor.
The scale inhibitor comprises the following components in parts by weight:
30 parts of pure water, 9 parts of sodium alginate, 3 parts of organic phosphate, 15 parts of trisodium phosphate, 0.3 part of sodium hydroxide, 4 parts of oxygen scavenger and 0.7 part of metal corrosion inhibitor.
The scale inhibitor comprises the following components in parts by weight:
40 parts of pure water, 12 parts of sodium alginate, 4 parts of organic phosphate, 20 parts of trisodium phosphate, 0.4 part of sodium hydroxide, 5 parts of oxygen scavenger and 0.8 part of metal corrosion inhibitor.
Wherein the use temperature of the scale inhibitor is 20-60 ℃.
Wherein, the oxygen scavenger is one or more of carbohydrazide, acetone oxime and hydrazine.
Wherein the metal corrosion inhibitor is benzotriazole or methyl benzotriazole.
Wherein, the monitoring of the action condition of the scale inhibitor comprises the following steps;
s301, collecting index information of boiler water and scale inhibitor concentration information in a period;
and step S302, adjusting the dosing rate of the scale inhibitor based on the index information and the scale inhibitor concentration information.
The invention has the beneficial effects that:
the scale inhibition method of the boiler comprises the steps of proportioning the concentration of the scale inhibitor by collecting index information of boiler water, wherein the scale inhibitor is a compound consisting of pure water, sodium alginate, organic phosphate, trisodium phosphate, sodium hydroxide, an oxygen scavenger, a metal corrosion inhibitor and the like, has excellent corrosion and scale inhibition performance, can form a layer of protective film on the surface of metal, greatly reduces the corrosion rate, and has the advantages of simple operation, thorough scale removal, convenient cleaning, safety to equipment, safety and environmental protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flow chart of a scale inhibition method for a boiler according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to an embodiment of the present invention, a method for inhibiting scale of a boiler is provided.
Example one
As shown in fig. 1, the scale inhibition method for the boiler according to the embodiment of the invention comprises the following steps:
step S1, extracting a small amount of boiler water at a boiler chemical feed port in advance, collecting index information of the boiler water, and acquiring the concentration of the added scale inhibitor;
step S2, adding a scale inhibitor by taking the outlet end of the deoxidizing port of the boiler as a chemical adding port, wherein the scale inhibitor mainly comprises pure water, sodium alginate, organic phosphate, trisodium phosphate, sodium hydroxide, a deoxidizing agent and a metal corrosion inhibitor;
step S3, monitoring the action condition of the scale inhibitor and adjusting the concentration of the scale inhibitor, comprising the following steps;
s301, collecting index information of boiler water and scale inhibitor concentration information in a period;
and step S302, adjusting the dosing rate of the scale inhibitor based on the index information and the scale inhibitor concentration information.
In addition, according to the technical scheme, the index information comprises: pH information, alkalinity information, hardness information, dissolved oxygen information, salt content information, iron content information, and oil content information.
In addition, the scale inhibitor comprises the following components in parts by weight:
20 parts of pure water, 6 parts of sodium alginate, 2 parts of organic phosphate, 10 parts of trisodium phosphate, 0.2 part of sodium hydroxide, 3 parts of oxygen scavenger and 0.6 part of metal corrosion inhibitor.
Wherein the use temperature of the scale inhibitor is 20-60 ℃.
In addition, according to the technical scheme, the oxygen scavenger is one or a combination of more of carbohydrazide, acetone oxime and hydrazine. The metal corrosion inhibitor is benzotriazole or methyl benzotriazole.
Example two
As shown in fig. 1, the scale inhibition method for the boiler according to the embodiment of the invention comprises the following steps:
step S1, extracting a small amount of boiler water at a boiler chemical feed port in advance, collecting index information of the boiler water, and acquiring the concentration of the added scale inhibitor;
step S2, adding a scale inhibitor by taking the outlet end of the deoxidizing port of the boiler as a chemical adding port, wherein the scale inhibitor mainly comprises pure water, sodium alginate, organic phosphate, trisodium phosphate, sodium hydroxide, a deoxidizing agent and a metal corrosion inhibitor;
step S3, monitoring the action condition of the scale inhibitor and adjusting the concentration of the scale inhibitor, comprising the following steps;
s301, collecting index information of boiler water and scale inhibitor concentration information in a period;
and step S302, adjusting the dosing rate of the scale inhibitor based on the index information and the scale inhibitor concentration information.
In addition, according to the technical scheme, the index information comprises: pH information, alkalinity information, hardness information, dissolved oxygen information, salt content information, iron content information, and oil content information.
In addition, the scale inhibitor comprises the following components in parts by weight:
30 parts of pure water, 9 parts of sodium alginate, 3 parts of organic phosphate, 15 parts of trisodium phosphate, 0.3 part of sodium hydroxide, 4 parts of oxygen scavenger and 0.7 part of metal corrosion inhibitor.
Wherein the use temperature of the scale inhibitor is 20-60 ℃.
In addition, according to the technical scheme, the oxygen scavenger is one or a combination of more of carbohydrazide, acetone oxime and hydrazine. The metal corrosion inhibitor is benzotriazole or methyl benzotriazole.
EXAMPLE III
As shown in fig. 1, the scale inhibition method for the boiler according to the embodiment of the invention comprises the following steps:
step S1, extracting a small amount of boiler water at a boiler chemical feed port in advance, collecting index information of the boiler water, and acquiring the concentration of the added scale inhibitor;
step S2, adding a scale inhibitor by taking the outlet end of the deoxidizing port of the boiler as a chemical adding port, wherein the scale inhibitor mainly comprises pure water, sodium alginate, organic phosphate, trisodium phosphate, sodium hydroxide, a deoxidizing agent and a metal corrosion inhibitor;
step S3, monitoring the action condition of the scale inhibitor and adjusting the concentration of the scale inhibitor, comprising the following steps;
s301, collecting index information of boiler water and scale inhibitor concentration information in a period;
and step S302, adjusting the dosing rate of the scale inhibitor based on the index information and the scale inhibitor concentration information.
In addition, according to the technical scheme, the index information comprises: pH information, alkalinity information, hardness information, dissolved oxygen information, salt content information, iron content information, and oil content information.
In addition, the scale inhibitor comprises the following components in parts by weight:
40 parts of pure water, 12 parts of sodium alginate, 4 parts of organic phosphate, 20 parts of trisodium phosphate, 0.4 part of sodium hydroxide, 5 parts of oxygen scavenger and 0.8 part of metal corrosion inhibitor.
Wherein the use temperature of the scale inhibitor is 20-60 ℃.
In addition, according to the technical scheme, the oxygen scavenger is one or a combination of more of carbohydrazide, acetone oxime and hydrazine. The metal corrosion inhibitor is benzotriazole or methyl benzotriazole.
In conclusion, by means of the technical scheme, the concentration of the scale inhibitor is proportioned by collecting the index information of the boiler water, and the scale inhibitor is a compound consisting of pure water, sodium alginate, organic phosphate, trisodium phosphate, sodium hydroxide, a deoxidant, a metal corrosion inhibitor and the like, has excellent corrosion and scale inhibition performance, can form a layer of protective film on the surface of metal, greatly reduces the corrosion rate, and has the advantages of simple operation, thorough scale removal, convenient cleaning, safety to equipment, safety and environmental protection.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A scale inhibition method of a boiler is characterized by comprising the following steps:
extracting a small amount of boiler water at a boiler chemical feed port in advance, collecting index information of the boiler water, and acquiring the concentration of a scale inhibitor;
proceeding with adding the antisludging agent by taking the outlet end of the deoxidizing port of the boiler as a chemical adding port, wherein the antisludging agent comprises: pure water, sodium alginate, organic phosphate, trisodium phosphate, sodium hydroxide, an oxygen scavenger and a metal corrosion inhibitor;
monitoring the action condition of the scale inhibitor and adjusting the concentration of the scale inhibitor.
2. The method for inhibiting scale of a boiler according to claim 1, wherein the index information includes: pH information, alkalinity information, hardness information, dissolved oxygen information, salt content information, iron content information, and oil content information.
3. The scale inhibition method of the boiler according to claim 1, wherein the scale inhibitor comprises the following components in parts by weight:
20-40 parts of pure water, 6-12 parts of sodium alginate, 2-4 parts of organic phosphate, 10-20 parts of trisodium phosphate, 0.2-0.4 part of sodium hydroxide, 3-5 parts of an oxygen scavenger and 0.6-0.8 part of a metal corrosion inhibitor.
4. The scale inhibition method of the boiler according to claim 3, wherein the scale inhibitor comprises the following components in parts by weight:
20 parts of pure water, 6 parts of sodium alginate, 2 parts of organic phosphate, 10 parts of trisodium phosphate, 0.2 part of sodium hydroxide, 3 parts of oxygen scavenger and 0.6 part of metal corrosion inhibitor.
5. The scale inhibition method of the boiler according to claim 3, wherein the scale inhibitor comprises the following components in parts by weight:
30 parts of pure water, 9 parts of sodium alginate, 3 parts of organic phosphate, 15 parts of trisodium phosphate, 0.3 part of sodium hydroxide, 4 parts of oxygen scavenger and 0.7 part of metal corrosion inhibitor.
6. The scale inhibition method of the boiler according to claim 3, wherein the scale inhibitor comprises the following components in parts by weight:
40 parts of pure water, 12 parts of sodium alginate, 4 parts of organic phosphate, 20 parts of trisodium phosphate, 0.4 part of sodium hydroxide, 5 parts of oxygen scavenger and 0.8 part of metal corrosion inhibitor.
7. The method for inhibiting scale of a boiler according to claim 4, 5 or 6, wherein the use temperature of the scale inhibitor is 20 ℃ to 60 ℃.
8. The method for scale inhibition of a boiler according to claim 7, wherein said oxygen scavenger is one or more of carbohydrazide, acetoxime, and hydrazine in combination.
9. The method for inhibiting scale of boiler according to claim 8, wherein the metal corrosion inhibitor is benzotriazole or tolyltriazole.
10. The method for inhibiting the scale of the boiler according to claim 9, wherein the monitoring of the action of the scale inhibitor comprises the following steps;
acquiring index information of boiler water and scale inhibitor concentration information in a period;
and adjusting the dosing rate of the scale inhibitor based on the index information and the scale inhibitor concentration information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210397918.9A CN114873746A (en) | 2022-04-09 | 2022-04-09 | Scale inhibition method for boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210397918.9A CN114873746A (en) | 2022-04-09 | 2022-04-09 | Scale inhibition method for boiler |
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| CN114873746A true CN114873746A (en) | 2022-08-09 |
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Family Applications (1)
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| CN202210397918.9A Pending CN114873746A (en) | 2022-04-09 | 2022-04-09 | Scale inhibition method for boiler |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854085A (en) * | 2005-04-25 | 2006-11-01 | 上海万森水处理有限公司 | Scale-proofing method of boiler |
| CN107698045A (en) * | 2017-09-27 | 2018-02-16 | 张艳军 | A kind of recirculated water water saving scale remover |
| CN108996717A (en) * | 2018-08-24 | 2018-12-14 | 广州科宝水处理科技有限公司 | A kind of pure water does the low-pressure industrial boiler corrosion inhibiting and descaling agent of make-up water |
-
2022
- 2022-04-09 CN CN202210397918.9A patent/CN114873746A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854085A (en) * | 2005-04-25 | 2006-11-01 | 上海万森水处理有限公司 | Scale-proofing method of boiler |
| CN107698045A (en) * | 2017-09-27 | 2018-02-16 | 张艳军 | A kind of recirculated water water saving scale remover |
| CN108996717A (en) * | 2018-08-24 | 2018-12-14 | 广州科宝水处理科技有限公司 | A kind of pure water does the low-pressure industrial boiler corrosion inhibiting and descaling agent of make-up water |
Non-Patent Citations (3)
| Title |
|---|
| 张梅娟编: "《表面防护与装饰》", 30 June 1989, 机械工业出版社, pages: 168 * |
| 石油化工冷却水处理技术编写组: "《锅炉给水泵的经济运行和改进》", 31 December 1989, 中国石油化工总公司生产部, pages: 240 * |
| 赵阔等: "《防锈油脂与气相缓蚀技术》", 30 September 2017, 冶金工业出版社, pages: 29 * |
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