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A hydrogenated terphenyl type high temperature nano heat transfer oil, its preparation method and application

A technology of hydrogenated terphenyl type and hydrogenated terphenyl type, which is applied in the field of hydrogenated terphenyl type high-temperature nano heat transfer oil, can solve the problems of increasing the flow resistance of heat transfer oil, reducing the effect of heating and heat transfer, and affecting the accuracy of temperature control, etc. Effects of flow resistance, fast heat transfer, and high suspension stability

Inactive Publication Date: 2017-10-20
QINGHAI ENESOON NEW MATERIAL TECH & SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The addition of nanoparticles greatly improves the thermal conductivity of the heat transfer oil, but the addition of nanoparticles also increases the flow resistance of the heat transfer oil, resulting in a significant decrease in the heating and heat transfer effect, seriously affecting the temperature control accuracy and inconvenient transportation

Method used

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  • A hydrogenated terphenyl type high temperature nano heat transfer oil, its preparation method and application
  • A hydrogenated terphenyl type high temperature nano heat transfer oil, its preparation method and application
  • A hydrogenated terphenyl type high temperature nano heat transfer oil, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1) Prepare 7kg of excess copper nanoparticles by gas phase method.

[0047] 2) Take 3 kg of nanoparticles obtained in step 1), disperse them in deionized water, and use ultrasonic dispersion to disperse them evenly according to the amount of nanoparticles.

[0048] 3) Heating step 2) For the system containing nanoparticles, when the temperature reaches 60°C, stir continuously and slowly add 0.5kg of dispersant Span 85 for coating modification. After continuing for 40min, the modified nanoparticles were made by natural cooling.

[0049] 4) Disperse the above-mentioned modified nanoparticles into 96kg of hydrogenated terphenyl type heat transfer oil at 15°C, stir while heating, gradually raise the temperature to 100°C, and keep it warm for 1h.

[0050] 5) Add 0.5 kg of drag reducer cetyltrimethylammonium chloride to the system in step 4), continue to keep warm and stir for 2 hours, and cool naturally to obtain hydrogenated terphenyl type high-temperature nano heat transf...

Embodiment 2~6

[0052] The preparation methods and conditions of each step in Examples 2-6 are the same as those in Example 1, except that the formula and the dosage of each component are different. The formula and dosage of each component in Examples 2-6 are shown in Table 1.

[0053] Table 1. Examples 2-6 Hydrogenated terphenyl type high-temperature nano heat transfer oil formula and a list of component dosages

[0054]

[0055] Table 2 is a comparative list of various performance indicators of the heat transfer oil, including the heat transfer oil obtained in Examples 1 to 6 of the present invention;

[0056] Common heat transfer oil in the prior art (hereinafter referred to as X1), the heat transfer oil prepared by the inventor according to the method of Example 9 of Chinese Invention Patent CN200310114441.6 and the listed ingredients;

[0057] In the prior art, the heat transfer oil with nanoparticles added (hereinafter referred to as X2), the inventor of the present invention prepare...

Embodiment 7

[0062] 1) Prepare 10 kg of aluminum oxide nanoparticles by chemical vapor deposition.

[0063] 2) Take 5 kg of nanoparticles obtained in step 1), disperse them in deionized water, and use mechanical stirring to disperse them evenly according to the amount of nanoparticles.

[0064] 3) Heating step 2) For the system containing nanoparticles, when the temperature reaches 95°C, stir continuously and slowly add 0.5kg of dispersant Span 85 for coating modification. After continuing for 55 minutes, the modified nanoparticles were made by natural cooling.

[0065] 4) At 170°C, disperse the above-mentioned modified nanoparticles into 94kg of hydrogenated terphenyl type heat transfer oil, stir while stirring, when the temperature is 120°C, keep warm for 2h.

[0066] 5) Add 0.5 kg of drag reducer cetyltrimethylammonium chloride to the system in step 4), continue to keep warm and stir for 3 hours, and cool naturally to obtain hydrogenated terphenyl type high-temperature nano heat transf...

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Abstract

The invention provides a hydrogenated terphenyl type high-temperature nano heat conduction oil, its preparation method and application. The heat-conducting oil of the present invention includes hydrogenated terphenyl heat-conducting oil, nanoparticles, a drag reducer and a dispersant, the surface of the nanoparticles is coated with a dispersant to form modified nanoparticles, and the modified nanoparticles are dispersed in the heat-conducting oil A suspension type heat transfer oil is formed, and the nanoparticles are metals, metal oxides, non-metals and / or non-metal oxides. The heat conduction oil of the present invention has the advantages of good thermal stability, fast heat transfer speed, uniform heating and large energy storage in the heat transfer medium, the highest service temperature reaches 460°C, and the service life is more than 3 years.

Description

technical field [0001] The invention relates to the field of heat transfer media, in particular to a hydrogenated terphenyl type high-temperature nano heat transfer oil, its preparation method and application. The high temperature guides the use temperature of the heat oil to reach 460°C or above. Background technique [0002] The official name of heat transfer oil is heat transfer oil, also known as heat transfer oil, thermal kerosene, etc. Heat transfer oil is a kind of heat transfer medium. It has been widely used in recent years because of its characteristics of uniform heating, accurate temperature adjustment and temperature control, high temperature under low vapor pressure, good heat transfer effect, energy saving, convenient transportation and operation, etc. in various fields. [0003] The study found that the thermal conductivity of solid particles is several orders of magnitude greater than that of liquids, so the thermal conductivity of a two-phase liquid suspen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/10F24J2/34
CPCY02E10/40
Inventor 曾智勇
Owner QINGHAI ENESOON NEW MATERIAL TECH & SCI CO LTD
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