CN111690379A - High-temperature heat conduction oil and preparation method thereof - Google Patents
High-temperature heat conduction oil and preparation method thereof Download PDFInfo
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- CN111690379A CN111690379A CN202010630085.7A CN202010630085A CN111690379A CN 111690379 A CN111690379 A CN 111690379A CN 202010630085 A CN202010630085 A CN 202010630085A CN 111690379 A CN111690379 A CN 111690379A
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- 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
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Abstract
The invention discloses high-temperature heat conduction oil which comprises the following components in parts by weight: 84-93 parts of base oil, 1-2 parts of antioxidant, 1-3 parts of antirust agent, 2-3 parts of dispersant, 0.5-2 parts of scale inhibitor, 2-4 parts of detergent, 0.5-2 parts of metal deactivator and 0.5-2 parts of coloring agent. The heat conduction oil of the invention heats the base oil to 55-60 ℃, then the additives in the parts are sequentially added, and the high-temperature heat conduction oil is obtained after uniform mixing and dissolution. The high-temperature heat conduction oil has the advantages of high flash point, low pour point, high safety coefficient, wide application range, good thermal stability, long service life, no toxicity and no odor.
Description
Technical Field
The invention belongs to the field of heat conduction oil, and particularly relates to high-temperature heat conduction oil and a preparation method thereof.
Background
The heat conducting oil is a special oil product with better thermal stability for indirectly transferring heat. The steam generator has the characteristics of uniform heating, accurate temperature regulation control, capability of generating high temperature under low steam pressure, good heat transfer effect, energy conservation, convenient transportation and operation and the like, is widely used in various occasions in recent years, and has more and more purposes and dosage. The heat conducting oil has the performances of thermal cracking resistance and chemical oxidation resistance, and has the advantages of good heat transfer efficiency, quick heat dissipation and good thermal stability. The heat conducting oil as the heat transfer medium of the industrial oil has the following characteristics: under conditions of almost atmospheric pressure, very high operating temperatures can be achieved. The operating pressure and the safety requirement of the high-temperature heating system can be greatly reduced, and the reliability of the system and equipment is improved; the process requirements of heating and cooling at different temperatures can be met in a wider temperature range, or the process requirements of high-temperature heating and low-temperature cooling can be simultaneously realized by using the same heat conducting oil in the same system. I.e. the complexity of the system and operation can be reduced; the water treatment system and equipment are omitted, the heat efficiency of the system is improved, and the maintenance workload of the equipment and pipelines is reduced. The initial investment and the operation cost of the heating system can be reduced; since the thermal oil system operates under low pressure conditions, it is safer to operate than the water and steam system.
The flash point is an important physical property of the heat transfer oil, and is the lowest temperature at which the heat transfer oil forms a mixed gas with the outside air to be in contact with flame, so that the mixed gas is ignited and immediately burns. The heat-conducting oil has high flash point, is not easy to ignite to cause fire, and has high safety. The common heat conduction oil in the market has a flash point of about 210 ℃, and the invention provides the high-temperature heat conduction oil, which has a flash point of about 257 ℃ and is far higher than that of the common heat conduction oil, thereby greatly improving the safety of the heat conduction oil. The density of the high-temperature heat transfer oil provided by the invention is 821.8kg/m, the density of the common heat transfer oil is generally 850 and 1050kg/m, and the heat transfer oil filled in the same system has the least quality.
Disclosure of Invention
Aiming at the problems, the invention provides high-temperature heat conduction oil and a preparation method thereof, and the high-temperature heat conduction oil has the advantages of high flash point, low pour point, high safety coefficient, wide application range, good thermal stability, long service life, no toxicity and no odor.
In order to achieve the purpose, the invention adopts the technical scheme that:
the high-temperature heat conduction oil comprises the following components in parts by mass: 84-93 parts of base oil, 1-2 parts of antioxidant, 1-3 parts of antirust agent, 2-3 parts of dispersant, 0.5-2 parts of scale inhibitor, 2-4 parts of detergent, 0.5-2 parts of metal deactivator and 0.5-2 parts of coloring agent.
Preferably, the high-temperature heat conduction oil comprises the following components in parts by weight: 86-91 parts of base oil, 1.2-1.8 parts of antioxidant, 1.5-2.5 parts of antirust agent, 2.2-2.8 parts of dispersant, 1-1.5 parts of scale inhibitor, 3-4 parts of detergent, 0.5-1.5 parts of metal deactivator and 0.5-1 part of coloring agent.
Preferably, the high-temperature heat conduction oil comprises the following components in parts by weight: 89.5 parts of base oil, 1.3 parts of antioxidant, 1.7 parts of antirust agent, 2.5 parts of dispersant, 1 part of scale inhibitor, 3.5 parts of detergent, 0.5 part of metal deactivator and 1 part of coloring agent.
Preferably, the base oil is an isomerized coal-based oil.
Preferably, the antioxidant is Butylated Hydroxyanisole (BHA) or Butylated Hydroxytoluene (BHT).
Preferably, the rust inhibitor is teflon (PTFE).
Preferably, the dispersing agent is triethyl hexyl phosphoric acid, sodium dodecyl sulfate, polyacrylamide or guar gum.
Preferably, the scale inhibitor is sodium benzotriazole and methyl benzotriazole; the detergent is polyisobutene amine, benzylamine and ashless phosphate.
Preferably, the metal deactivator is N, N-bis (salicylidene) -1, 2-propane diamine; the coloring agent is 1, 4-bis [ (2,4, 6-trimethylphenyl) amino ] -9, 10-anthracenedione.
The preparation method of the high-temperature heat conduction oil comprises the steps of heating base oil to 55-60 ℃, then sequentially adding the additives in parts, and uniformly mixing and dissolving to obtain the high-temperature heat conduction oil.
Compared with the prior art, the invention has the following beneficial effects:
the high-temperature heat conduction oil has an opening flash point of 257 ℃, the flash point is higher than that of other common heat conduction oil, the occurrence of fire and explosion accidents in the use process of the heat conduction oil is avoided to the greatest extent, and compared with other current heat conduction oil products, the high-temperature heat conduction oil is not easy to ignite and has high safety performance; the density of the high-temperature heat-conducting oil is as follows: 821.8kg/m, normal thermal oil density is generally: 850 and 1050kg/m for cultivation, the quality of the heat conducting oil filled in the product in the same system is the minimum; the pour point of the high-temperature heat conduction oil is-45 ℃, the pour point of the common heat conduction oil is about-18 ℃, and compared with the common heat conduction oil, the pour point of the high-temperature heat conduction oil is lower, and the fluidity of the high-temperature heat conduction oil is better under the same temperature state; the invention has the advantages of high safety factor, wide application range, good thermal stability, long service life, no toxicity and no odor.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
The high-temperature heat conduction oil comprises the following components in parts by weight: 91.5 parts of base oil, 1 part of antioxidant, 1.2 parts of antirust agent, 2 parts of dispersant, 1 part of scale inhibitor, 2 parts of detergent, 1.3 parts of metal deactivator and 0.5 part of coloring agent. Heating the heat conduction oil to 55-60 ℃, then sequentially adding the additives in parts, and uniformly mixing and dissolving to obtain the high-temperature heat conduction oil.
Example 2
The high-temperature heat conduction oil comprises the following components in parts by weight: 89.5 parts of base oil, 1.3 parts of antioxidant, 1.7 parts of antirust agent, 2.5 parts of dispersant, 1 part of scale inhibitor, 3.5 parts of detergent, 0.5 part of metal deactivator and 0.8 part of coloring agent. Heating the heat conduction oil to 55-60 ℃, then sequentially adding the additives in parts, and uniformly mixing and dissolving to obtain the high-temperature heat conduction oil.
Example 3
The high-temperature heat conduction oil comprises the following components in parts by weight: 86.5 parts of base oil, 1.8 parts of antioxidant, 2.8 parts of antirust agent, 2.8 parts of dispersant, 1.7 parts of scale inhibitor, 2.6 parts of detergent, 1.8 parts of metal deactivator and 1 part of coloring agent. Heating the heat conduction oil to 55-60 ℃, then sequentially adding the additives in parts, and uniformly mixing and dissolving to obtain the high-temperature heat conduction oil.
Example 4
The high-temperature heat conduction oil comprises the following components in parts by weight: 90.8 parts of base oil, 2 parts of antioxidant, 1 part of antirust agent, 2.8 parts of dispersant, 0.6 part of scale inhibitor, 2.2 parts of detergent, 0.6 part of metal deactivator and 1.2 parts of coloring agent. Heating the heat conduction oil to 55-60 ℃, then sequentially adding the additives in parts, and uniformly mixing and dissolving to obtain the high-temperature heat conduction oil.
The high temperature heat transfer oil performance parameters obtained in examples 1-4 are shown in the following table:
| item | Example 1 | Example 2 | Example 3 | Example 4 | Existing heat transfer oil |
| Appearance of the product | Light blue transparent | Light blue transparent | Light blue transparent | Light blue transparent | Light yellow transparent |
| Kinematic viscosity (40 ℃) mm/s | 32.7 | 33 | 32.4 | 33.1 | 32 |
| Flash point (open) deg.C | 249 | 251 | 247 | 255 | 210 |
| Pour point C | -45 | -45 | -45 | -45 | -18 |
| Residual carbon | 0.01 | 0.01 | 0.01 | 0.01 | 0.02 |
| Density (20 ℃ C.) g/cm | 0.81 | 0.82 | 0.82 | 0.83 | 0.86 |
| Acid value (in KOH) mg/g | 0.01 | 0.01 | 0.01 | 0.01 | 0.02 |
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (10)
1. The high-temperature heat conduction oil is characterized by comprising the following components in parts by mass: 84-93 parts of base oil, 1-2 parts of antioxidant, 1-3 parts of antirust agent, 2-3 parts of dispersant, 0.5-2 parts of scale inhibitor, 2-4 parts of detergent, 0.5-2 parts of metal deactivator and 0.5-2 parts of coloring agent.
2. The high-temperature heat transfer oil of claim 1, which is characterized by comprising the following components in parts by mass: 86-91 parts of base oil, 1.2-1.8 parts of antioxidant, 1.5-2.5 parts of antirust agent, 2.2-2.8 parts of dispersant, 1-1.5 parts of scale inhibitor, 3-4 parts of detergent, 0.5-1.5 parts of metal deactivator and 0.5-1 part of coloring agent.
3. The high-temperature heat transfer oil of claim 1, which is characterized by comprising the following components in parts by mass: 89.5 parts of base oil, 1.3 parts of antioxidant, 1.7 parts of antirust agent, 2.5 parts of dispersant, 1 part of scale inhibitor, 3.5 parts of detergent, 0.5 part of metal deactivator and 1 part of coloring agent.
4. The high temperature thermal oil of claim 1, wherein: the base oil is isomerized coal-made oil.
5. The high temperature thermal oil of claim 1, wherein: the antioxidant is Butylated Hydroxyanisole (BHA) or Butylated Hydroxytoluene (BHT).
6. The high temperature thermal oil of claim 1, wherein: the antirust agent is Teflon (PTFE).
7. The high temperature thermal oil of claim 1, wherein: the dispersing agent is triethyl hexyl phosphoric acid, sodium dodecyl sulfate, polyacrylamide and guar gum.
8. The high temperature thermal oil of claim 1, wherein: the scale inhibitor is sodium benzotriazole and methyl benzotriazole; the detergent is polyisobutene amine, benzylamine and ashless phosphate.
9. The high temperature thermal oil of claim 1, wherein: the metal passivator is N, N-bis (salicylidene) -1, 2-propane diamine; the coloring agent is 1, 4-bis [ (2,4, 6-trimethylphenyl) amino ] -9, 10-anthracenedione.
10. The preparation method of high-temperature conduction oil according to any one of claims 1 to 9, characterized in that the base oil is heated to 55 to 60 ℃, then the additives in parts are sequentially added, and the high-temperature conduction oil is obtained after uniform mixing and dissolution.
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| CN202010630085.7A CN111690379A (en) | 2020-07-03 | 2020-07-03 | High-temperature heat conduction oil and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113943554A (en) * | 2021-10-15 | 2022-01-18 | 林军 | High-temperature and high-pressure resistant insulated heat conduction oil and preparation method thereof |
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2020
- 2020-07-03 CN CN202010630085.7A patent/CN111690379A/en active Pending
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| CN105385419A (en) * | 2015-12-22 | 2016-03-09 | 山东北方淄特特种油股份有限公司 | Conduction oil with heat oxidation stability |
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| CN113943554A (en) * | 2021-10-15 | 2022-01-18 | 林军 | High-temperature and high-pressure resistant insulated heat conduction oil and preparation method thereof |
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