Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Airborne cold/heat conducting medium and preparation method thereof

A heat-conducting medium and cooling-carrying technology, applied in chemical instruments and methods, heat exchange materials, etc., can solve the problems of increasing fuel consumption, not being used as a heat-conducting medium, and heat-transfer medium being rare, and improving low-temperature viscosity. , good scale inhibition effect, good corrosion inhibition effect

Active Publication Date: 2019-11-15
山东志新万成能源科技有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the coking phenomenon occurs, it not only hinders the flow of heat transfer oil, reduces heat transfer efficiency and increases fuel consumption, but also causes local overheating and deformation of the pipeline to cause explosion.
(2) Easy to corrode
The nitrogen sealing effect in the heat transfer oil system is not good. In the presence of oxygen, it is easy to oxidize into phytic acid and colloids to adhere to the oil pipeline. Risk of running leaks
Moreover, due to its complex composition, it is particularly difficult to add corrosion and scale inhibitors to solve its corrosion problems. At present, there is no successful case of adding corrosion inhibitors to heat transfer oil to solve its corrosion
(3) Frequent replacement
(4) The operating environment has very strict requirements on water content, and a small amount of water can bring great harm to the system operation
[0004] Conventional antifreezes such as ethylene glycol type and propylene glycol type can obtain a better freezing point, but the boiling point is generally below 110°C, and cannot be used as a heat transfer medium in the medium and high temperature range.
[0005] In addition to heat transfer oil, heat transfer media with low freezing point and high boiling point are rare in industrial applications

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An organic cold / heat conducting medium, which is composed of 55 parts of propylene glycol, 35 parts of 1-butyl-3-methylimidazole trifluoromethanesulfonate, 5 parts of deionized water, 1.5 parts of benzoic acid, adipic acid 1.3 parts, 1 part of triethanolamine, 0.7 parts of benzotriazole, 0.5 parts of low molecular weight methacrylic acid / acrylic acid low molecular weight copolymer salt.

[0016] Its preparation method is: add propylene glycol, 1-butyl-3-methylimidazolium trifluoromethanesulfonate and deionized water into a beaker according to a certain ratio, place the beaker in an electric heating mantle, adjust the high-speed disperser Position the dispersing head so that it is located in the center of the beaker and about 1cm away from the bottom of the beaker. Adjust the speed of the disperser to 1300rpm for strong dispersion. At the same time, adjust the heating temperature of the heating mantle to heat the base liquid to 70-80°C and disperse at a constant temperatu...

Embodiment 2

[0024] Embodiment 2: The similarities between this embodiment and Embodiment 1 will not be repeated, and the difference is:

[0025] An organic cold / heat conducting medium, which is composed of 60 parts of propylene glycol, 29 parts of 1-butyl-3-methylimidazole trifluoromethanesulfonate, 6 parts of deionized water, 1.5 parts of benzoic acid, adipic acid 1 part, 1.3 parts of triethanolamine, 0.7 part of benzotriazole, and 0.5 part of low molecular weight methacrylic acid / acrylic acid low molecular weight copolymer salt.

[0026] Its preparation method is the same as that of Example 1, and will not be repeated.

[0027] The test results show that,

[0028] (1) Freezing point: -49°C, boiling point > 160°C;

[0029] (2) Viscosity at -40°C: 248.41mPa·s;

[0030] (3) Corrosion and scale inhibition performance: refer to (GB29743-2013 glassware test method), in the environment of 140 ℃, after 336 hours, the test corrosion results are: carbon steel reduced by 6mg, brass reduced by 2...

Embodiment 3

[0033] Embodiment 3: The similarities between this embodiment and Embodiment 1 will not be repeated, and the difference is:

[0034] An organic cold / heat conducting medium, which is composed of 65 parts of propylene glycol, 20.3 parts of 1-butyl-3-methylimidazole trifluoromethanesulfonate, 7 parts of deionized water, 2 parts of benzoic acid, adipic acid 1.5 parts, 2 parts of triethanolamine, 1.5 parts of benzotriazole, 0.7 parts of low molecular weight methacrylic acid / acrylic acid low molecular weight copolymer salt.

[0035] Its preparation method is the same as that of Example 1, and will not be repeated.

[0036] The test results show that,

[0037] (1) Freezing point: -53°C, boiling point > 160°C;

[0038] (2) Viscosity at -45°C: 160.81mPa·s;

[0039] (3) Corrosion and scale inhibition performance: refer to (GB29743-2013 glassware test method), in an environment of 140 ° C, after 336 hours, the test corrosion results are: carbon steel reduced by 1 mg, brass reduced by ...

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
freezing pointaaaaaaaaaa
boiling pointaaaaaaaaaa
freezing pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to an organic refrigerating / heat conducting medium and a preparation method of the organic refrigerating / heat conducting medium and belongs to the technical field of organic material synthesis. The medium is prepared by taking propylene glycol, 1-butyl-3-methylimidazole fluoroform sulfonate and deionized water as a base solution and benzoic acid, adipic acid, triethanolamine, benzo triazole, organic phosphate and low molecular weight methacrylic acid / acrylic acid copolymer salt as a corrosion and scale inhibitor for heating, stirring and dissolution. The prepared organic refrigerating / heat conducting medium can keep a good flowing property at a low temperature and have a higher flash point and stable chemical properties at middle and high temperatures, has excellent corrosion and scale inhibition performance for multiple metals in a refrigerating / heat conducting system and effectively prevents electrochemical corrosion and hot corrosion. Reserve alkalinity is greater than 15mL, so that the medium has a stable PH (potential of hydrogen) value, and a long residual action of the performance of the medium is ensured; a heat conductivity coefficient of the medium is slightly better than that of heat conducting oil; and the medium can achieve normal operation in a temperature range of -50-150 DEG C. Raw material sources are direct and easy to obtain; operating requirements on equipment are low; and large-scale industrial production is easy to achieve.

Description

technical field [0001] The invention relates to the field of organic materials, in particular to an organic cold / heat conducting medium and a preparation method thereof. Background technique [0002] At present, the important heat transfer medium of heating oil furnace in industrial production is heat transfer oil. [0003] Heat transfer oil has the characteristics of high boiling point, high flash point, accurate temperature control, high temperature under low vapor pressure, good heat transfer effect, energy saving, convenient transportation and operation, etc., and has been widely used in various indirect heat transfer fields in recent years . Although heat transfer oil has many advantages, it also has many fatal disadvantages. (1) Easy to coke. After the coking phenomenon occurs, it not only hinders the flow of heat transfer oil, reduces heat transfer efficiency and increases fuel consumption, but also causes local overheating deformation of the pipeline and the possi...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/10C23F11/10
CPCC09K5/10C23F11/10
Inventor 姜桂林刘志刚张承武高博吕明明张思卓徐裕隆
Owner 山东志新万成能源科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products