CN110699048A - Cooling liquid for frequency converter of wind turbine generator and preparation method of cooling liquid - Google Patents
Cooling liquid for frequency converter of wind turbine generator and preparation method of cooling liquid Download PDFInfo
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- CN110699048A CN110699048A CN201910840540.3A CN201910840540A CN110699048A CN 110699048 A CN110699048 A CN 110699048A CN 201910840540 A CN201910840540 A CN 201910840540A CN 110699048 A CN110699048 A CN 110699048A
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- cooling liquid
- frequency converter
- wind turbine
- turbine generator
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/20—Antifreeze additives therefor, e.g. for radiator liquids
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/12—Oxygen-containing compounds
- C23F11/124—Carboxylic acids
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
Abstract
The invention discloses a cooling liquid for a frequency converter of a wind turbine generator and a preparation method thereof, belonging to the field of operation and maintenance in the wind power industry. The composition comprises the following components in parts by weight: 40-60 parts of 1, 3-propylene glycol, 0.5-1 part of carbonated water cerous chloride, 0.2-0.5 part of allocinnamic acid, 1-5 parts of ethylenediamine tetramethylene phosphonic acid, 0.5-1 part of sodium benzoate, 1-5 parts of potassium dihydrogen phosphate, 1-5 parts of triethanolamine, 0.1-0.3 part of sodium hydroxide, 40-50 parts of deionized water and 0.02-0.05 part of water-based fluorescent blue dye. The aluminum alloy corrosion inhibitor does not freeze at 45 ℃ below zero, and the cerium trichloride heptahydrate and the allocinnamic acid compound can form a conversion film on the surface of aluminum metal, so that the corrosion of aluminum alloy can be effectively inhibited. The cooling liquid formula can effectively avoid the problems of unstable performance, deposition and the like of the inorganic corrosion inhibitor in a high-temperature environment, and has the performances of high energy efficiency, low cost, low pollution and the like.
Description
Technical Field
The invention relates to the field of wind turbine generator frequency converter cooling systems, in particular to a wind turbine generator frequency converter cooling liquid and a preparation method thereof.
Background
The working principle of the frequency converter cooling system of the wind turbine generator set is that a water pump drives cooling liquid in a closed pipeline to perform circulating heat exchange, and the cooling liquid after absorbing heat performs secondary heat exchange with cooling air through an air cooler, so that the temperature of the system is reduced. The working efficiency of the cooling system directly affects the working efficiency of the frequency converter and the generating efficiency of the wind turbine. The cooling liquid is used as a cooling medium of a frequency converter cooling system, and needs to have a low-temperature anti-freezing effect at low temperature in a severe cold area and an anti-corrosion effect at high temperature.
At present, an engine antifreeze is basically adopted as a cooling liquid of a wind turbine generator, for example, in a Chinese patent application with the publication number of CN107629765A and the publication number of 2018, 1 month and 26 days, most of the engine antifreeze on the market is an inorganic corrosion inhibitor, and has the problems of unstable performance, deposition and the like in a high-temperature environment, and the antifreeze requirement cannot be met in a low-temperature environment. However, the wind power industry has the particularity of using the engine anti-freezing solution, a frequency converter heat exchange system and an engine heat exchanger are different essentially, and the operation environment and the temperature of the cooling liquid are different greatly, so that the engine anti-freezing solution cannot be directly used as the cooling liquid of the frequency converter of the wind turbine generator. The data research shows that the organic acid corrosion inhibitor has the characteristics of low consumption and long service life, and has good synergistic effect with the inorganic salt corrosion inhibitor. Therefore, the formula is developed based on compounding of inorganic salt and organic acid salt, and the wind turbine generator set frequency converter cooling liquid can effectively prevent aluminum alloy corrosion in high-temperature and low-temperature environments and the preparation method thereof are provided.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the cooling liquid for the frequency converter of the wind turbine generator, which can effectively protect aluminum alloy at high temperature and low temperature.
The technical scheme adopted by the invention for solving the problems is as follows: the cooling liquid for the frequency converter of the wind turbine generator is characterized by comprising the following components in parts by weight: 40-60 parts of 1, 3-propylene glycol, 0.5-1 part of cerous chloride heptahydrate, 0.2-0.5 part of allocinnamic acid, 1-5 parts of ethylenediamine tetramethylene phosphonic acid, 0.5-1 part of sodium benzoate, 1-5 parts of potassium dihydrogen phosphate, 1-5 parts of triethanolamine, 0.1-0.3 part of sodium hydroxide, 40-50 parts of deionized water and 0.02-0.05 part of water-based fluorescent blue dye.
The preparation method of the cooling liquid for the frequency converter of the wind turbine generator comprises the following steps: the method comprises the following steps of taking various raw materials according to the parts by weight of the selected raw materials in advance, mixing cerous chloride heptahydrate, allocinnamic acid, ethylenediamine tetramethylene phosphonic acid, sodium benzoate, monopotassium phosphate and triethanolamine, adding the mixture into a mixed solution of 1, 3-propylene glycol and deionized water, uniformly stirring, and adding sodium hydroxide and a water-based fluorescent blue dye to obtain the cooling liquid of the frequency converter of the wind turbine generator.
Compared with the prior art, the invention has the following advantages and effects: the cooling liquid of the frequency converter of the wind turbine generator set can effectively protect the aluminum alloy at high temperature and low temperature, has excellent protective performance, and has low consumption speed of the corrosion inhibitor and long service life.
The aluminum alloy corrosion inhibitor does not freeze at 45 ℃ below zero, and the cerium trichloride heptahydrate and the allocinnamic acid compound can form a conversion film on the surface of aluminum metal, so that the corrosion of aluminum alloy can be effectively inhibited. The cooling liquid formula can effectively avoid the problems of unstable performance, deposition and the like of the inorganic corrosion inhibitor in a high-temperature environment, and has the performances of high energy efficiency, low cost, low pollution and the like.
Detailed Description
The present invention is further illustrated by the following examples, which are illustrative of the present invention and are not to be construed as being limited thereto.
Example 1.
The cooling liquid for the frequency converter of the wind turbine generator system in the embodiment is prepared from the following raw materials in parts by weight:
42 parts of 1, 3-propylene glycol, 0.6 part of cerous chloride heptahydrate, 0.3 part of allocinnamic acid, 2 parts of ethylenediamine tetramethylene phosphonic acid, 0.6 part of sodium benzoate, 4 parts of monopotassium phosphate, 3 parts of triethanolamine, 0.2 part of sodium hydroxide, 40 parts of deionized water and 0.03 part of water-based fluorescent blue dye.
Taking various raw materials according to the parts by weight, mixing cerous chloride heptahydrate, allocinnamic acid, ethylenediamine tetramethylene phosphonic acid, sodium benzoate, monopotassium phosphate and triethanolamine, adding the mixture into a mixed solution of 1, 3-propylene glycol and deionized water, uniformly stirring, and adding sodium hydroxide and a water-based fluorescent blue dye to obtain the required cooling liquid of the frequency converter of the wind turbine generator.
Example 2.
The cooling liquid for the frequency converter of the wind turbine generator system in the embodiment is prepared from the following raw materials in parts by weight:
50 parts of 1, 3-propylene glycol, 0.7 part of cerous chloride heptahydrate, 0.35 part of allocinnamic acid, 3 parts of ethylenediamine tetramethylene phosphonic acid, 0.6 part of sodium benzoate, 4 parts of monopotassium phosphate, 5 parts of triethanolamine, 0.3 part of sodium hydroxide, 40 parts of deionized water and 0.35 part of water-based fluorescent blue dye.
Taking various raw materials according to the parts by weight, mixing cerous chloride heptahydrate, allocinnamic acid, ethylenediamine tetramethylene phosphonic acid, sodium benzoate, monopotassium phosphate and triethanolamine, adding the mixture into a mixed solution of 1, 3-propylene glycol and deionized water, uniformly stirring, and adding sodium hydroxide and a water-based fluorescent blue dye to obtain the required cooling liquid of the frequency converter of the wind turbine generator.
Example 3.
The cooling liquid for the frequency converter of the wind turbine generator system in the embodiment is prepared from the following raw materials in parts by weight:
58 parts of 1, 3-propylene glycol, 0.9 part of cerous chloride heptahydrate, 0.45 part of allocinnamic acid, 5 parts of ethylenediamine tetramethylene phosphonic acid, 0.75 part of sodium benzoate, 5 parts of monopotassium phosphate, 5 parts of triethanolamine, 0.25 part of sodium hydroxide, 43 parts of deionized water and 0.04 part of water-based fluorescent blue dye.
Taking various raw materials according to the parts by weight, mixing cerous chloride heptahydrate, allocinnamic acid, ethylenediamine tetramethylene phosphonic acid, sodium benzoate, monopotassium phosphate and triethanolamine, adding the mixture into a mixed solution of 1, 3-propylene glycol and deionized water, uniformly stirring, and adding sodium hydroxide and a water-based fluorescent blue dye to obtain the required cooling liquid of the frequency converter of the wind turbine generator.
Example 4.
The cooling liquid for the frequency converter of the wind turbine generator system in the embodiment is prepared from the following raw materials in parts by weight:
40 parts of 1, 3-propylene glycol, 0.5 part of cerous chloride heptahydrate, 0.2 part of allocinnamic acid, 1 part of ethylenediamine tetramethylene phosphonic acid, 0.5 part of sodium benzoate, 1 part of monopotassium phosphate, 1 part of triethanolamine, 0.1 part of sodium hydroxide, 45 parts of deionized water and 0.02 part of water-based fluorescent blue dye.
Taking various raw materials according to the parts by weight, mixing cerous chloride heptahydrate, allocinnamic acid, ethylenediamine tetramethylene phosphonic acid, sodium benzoate, monopotassium phosphate and triethanolamine, adding the mixture into a mixed solution of 1, 3-propylene glycol and deionized water, uniformly stirring, and adding sodium hydroxide and a water-based fluorescent blue dye to obtain the required cooling liquid of the frequency converter of the wind turbine generator.
Example 5.
The cooling liquid for the frequency converter of the wind turbine generator system in the embodiment is prepared from the following raw materials in parts by weight:
60 parts of 1, 3-propylene glycol, 1 part of cerous chloride heptahydrate, 0.5 part of allocinnamic acid, 4 parts of ethylenediamine tetramethylene phosphonic acid, 1 part of sodium benzoate, 4 parts of monopotassium phosphate, 4 parts of triethanolamine, 0.25 part of sodium hydroxide, 60 parts of deionized water and 0.05 part of water-based fluorescent blue dye.
Taking various raw materials according to the parts by weight, mixing cerous chloride heptahydrate, allocinnamic acid, ethylenediamine tetramethylene phosphonic acid, sodium benzoate, monopotassium phosphate and triethanolamine, adding the mixture into a mixed solution of 1, 3-propylene glycol and deionized water, uniformly stirring, and adding sodium hydroxide and a water-based fluorescent blue dye to obtain the required cooling liquid of the frequency converter of the wind turbine generator.
Although the present invention has been described with reference to the above embodiments, it should be understood that the scope of the present invention is not limited thereto, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention.
Claims (2)
1. The cooling liquid for the frequency converter of the wind turbine generator is characterized by comprising the following components in parts by weight: 40-60 parts of 1, 3-propylene glycol, 0.5-1 part of cerous chloride heptahydrate, 0.2-0.5 part of allocinnamic acid, 1-5 parts of ethylenediamine tetramethylene phosphonic acid, 0.5-1 part of sodium benzoate, 1-5 parts of potassium dihydrogen phosphate, 1-5 parts of triethanolamine, 0.1-0.3 part of sodium hydroxide, 40-50 parts of deionized water and 0.02-0.05 part of water-based fluorescent blue dye.
2. The preparation method of the cooling liquid for the frequency converter of the wind turbine generator set according to claim 1 is characterized by comprising the following steps: mixing the cerium chloride heptahydrate, the allocinnamic acid, the ethylenediamine tetramethylene phosphonic acid, the sodium benzoate, the monopotassium phosphate and the triethanolamine according to the required amount of the raw materials, adding the mixture into a mixed solution of 1, 3-propylene glycol and deionized water, uniformly stirring, and adding sodium hydroxide and a water-based fluorescent blue dye to obtain the cooling liquid of the frequency converter of the wind turbine generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840540.3A CN110699048A (en) | 2019-09-06 | 2019-09-06 | Cooling liquid for frequency converter of wind turbine generator and preparation method of cooling liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840540.3A CN110699048A (en) | 2019-09-06 | 2019-09-06 | Cooling liquid for frequency converter of wind turbine generator and preparation method of cooling liquid |
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| CN110699048A true CN110699048A (en) | 2020-01-17 |
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| CN201910840540.3A Pending CN110699048A (en) | 2019-09-06 | 2019-09-06 | Cooling liquid for frequency converter of wind turbine generator and preparation method of cooling liquid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518524A (en) * | 2020-05-29 | 2020-08-11 | 四川路恒达机械科技有限公司 | Preparation method of special liquid for heating |
| CN113969143A (en) * | 2021-09-29 | 2022-01-25 | 华电电力科学研究院有限公司 | Wind turbine generator cooling liquid with chelation effect and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518524A (en) * | 2020-05-29 | 2020-08-11 | 四川路恒达机械科技有限公司 | Preparation method of special liquid for heating |
| CN113969143A (en) * | 2021-09-29 | 2022-01-25 | 华电电力科学研究院有限公司 | Wind turbine generator cooling liquid with chelation effect and preparation method thereof |
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Application publication date: 20200117 |