Unlock instant, AI-driven research and patent intelligence for your innovation.

Frost resistant neating/cooling fluid

A technology for cooling fluids and fluids, used in heat exchange materials, chemical instruments and methods, etc., can solve problems such as damage to metal surfaces and heat transfer of cooling fluids, and achieve excellent anti-corrosion and excellent heat transfer effects.

Inactive Publication Date: 2003-11-12
TEXACO DEV CORP
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this film is that it impairs the heat transfer between the metal surface and the cooling fluid

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 Construction

[0022] In order to test the heat transfer properties, a system is used in which the liquid to be tested is circulated with a constant volume flow at a constant pressure. The liquid is passed through a metal sampling tube to which a heating device is applied. The temperature of the liquid is kept constant by cooling coils. Over a period of time, measure and record the temperature of the metal sampling tube. An increase in the temperature of the metal coupon indicates a relative impairment of heat transfer capability over the same amount of time.

[0023] Included components

(weight-%)

Reference - using conventional corrosion inhibitors

cooling fluid

Test - use of buffer according to the invention

etchant cooling fluid

water

49.8

60

Potassium acetate

31.2

31.2

Potassium formate

7.8

7.8

sodium benzoate

1.1

-

Tolyltriazole

1.7

-

...

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

No PUM Login to View More

Abstract

Frost resistant, aqueous cooling / heating fluid containing alkali salts of acetic acid and / or formic acid and which as a corrosion inhibitor contains a mixture of a C5-C16 monocarboxylic acid or alkali-, ammonium- or amino-salts of said acid, a C5-C16 dicarboxylic acid or alkali-, ammonium- or amino-salts of said acid, and also a triazole.

Description

technical field [0001] This invention relates to anti-bloom aqueous heating / cooling fluids containing alkali metal salts of acetic acid and / or formic acid. This heating / cooling fluid can be used in industrial cooling equipment, cooling systems in pipes and vehicles, cooling systems for ice skating in sports centers, heat exchangers, district heating systems, heat pumps, solar panels, etc. send. Background of the invention [0002] In aqueous heating / cooling fluids, anti-bloom properties are generally obtained by adding glycol. Ethylene glycol is a liquid that can be mixed with water in any proportion, presents a low risk of fire and explosion, resists blooming and is colorless and odourless. When the content of ethylene glycol is 60 volume-%, the freezing point (-57°C) of the glycol-water mixture is the lowest. However, the disadvantage of ethylene glycol is that it is highly toxic. Therefore, if it ends up in oceans, lakes and rivers, for example, if cooling fluids are ...

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): C09K5/08C09K5/00C09K5/20C23F11/08C23F11/10
CPCC09K5/20C23F11/10C09K5/00
Inventor M·斯塔兹曼
Owner TEXACO DEV CORP