Dibenzyltoluene type high-temperature nanometer heat-conducting oil, and preparation method and application thereof

A technology of dibenzyltoluene and heat transfer oil, applied in chemical instruments and methods, heating devices, solar thermal devices, etc., can solve problems such as increasing the flow resistance of heat transfer oil, reducing the effect of heating and heat transfer, and affecting the accuracy of temperature control. Achieve the effects of reduced flow resistance, fast heat transfer speed, and high suspension stability

Inactive Publication Date: 2014-07-23
QINGHAI ENESOON NEW MATERIAL TECH & SCI CO LTD
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dibenzyltoluene type high-temperature nanometer heat-conducting oil, and preparation method and application thereof
  • Dibenzyltoluene type high-temperature nanometer heat-conducting oil, and preparation method and application thereof
  • Dibenzyltoluene type high-temperature nanometer heat-conducting oil, and preparation method and application thereof

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 or mechanical stirring 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 dibenzyltoluene heat transfer oil at 20°C, stir while heating, gradually raise the temperature to 80°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 dibenzyltoluene-type high-temperature nano heat transfer oil. ...

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. Example 2~6 dibenzyltoluene type high temperature nano heat transfer oil formula and the list of component dosage

[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 of the present invention according to the method and listed ingredients in Example 9 of Chinese Invention Patent CN200310114441.6;

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

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 180°C, disperse the above-mentioned modified nanoparticles into 94kg of dibenzyltoluene heat transfer oil, cool while stirring, and keep warm for 2 hours when the temperature is 120°C.

[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 dibenzyltoluene-type high-temperature nano heat transfer oil.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides dibenzyltoluene type high-temperature nanometer heat-conducting oil, and a preparation method and application thereof. The heat-conducting oil comprises dibenzyltoluene heat-conducting oil, nanometer particles, a drag reducer and a dispersant. The surfaces of the nanometer particles are coated with the dispersant for forming modified nanometer particles, the modified nanometer particles are dispersed in heat-conducting oil to form suspension type heat-conducting oil, and the nanometer particles are metals, metal oxides, non-metals and/or non-metal oxides. The heat-conducting oil provided by the invention has the advantages of good heat stability, fast heat conducting speed, uniform heating and large energy storage amount in heat conducting mediums, and has the highest usage temperature of 500 DEG C and the service life of 3 years or more.

Description

technical field [0001] The invention relates to the field of heat transfer media, in particular to a dibenzyltoluene type high-temperature nano heat transfer oil, its preparation method and application. The high temperature is to guide the use temperature of the heat oil to reach 500°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. Because of its uniform heating, accurate temperature control, high temperature under low vapor pressure, good heat transfer effect, energy saving, convenient transportation and operation, etc., it has been widely used in various fields in recent years. big field. [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 suspended with solid particles is much gre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09K5/10F24J2/34
CPCY02E10/40
Inventor 曾智勇
Owner QINGHAI ENESOON NEW MATERIAL TECH & SCI CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap