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Heat transfer medium and its preparation method and use

A technology of heat transfer medium and organic acid, applied in the preparation of the medium and the field of heat transfer medium of composite inorganic salt water solution, can solve the problems of poor compatibility of metal pipes, unsatisfactory heat transfer effect, affecting service life, etc. Good thermal conductivity, fast heat transfer, energy saving effect

Inactive Publication Date: 2007-07-18
NEW WORLD ZGM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the heat transfer effect of the medium is not ideal, and the compatibility with metal pipes is poor, and it is easy to produce non-condensable gas, which affects the service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 11g of potassium sulfate, 5g of potassium chloride and 3g of copper nitrate and dissolve them in 500g of water, heat to 60°C, add 1g of humic acid, adjust to pH=7 with sodium hydroxide, and add water to a total of 1kg. Obtain the completely dissolved aqueous solution product, detect product performance.

Embodiment 2

[0027]Dissolve 14g of copper sulfate and 110g of sodium nitrate in 500g of water, add 6g of ammonia water, add 70g of magnesium chloride, add 1g of humic acid, adjust to pH=8 with ammonium hydroxide and potassium hydroxide (1:1), add water to the total amount It is 1kg. A completely dissolved aqueous solution product was obtained, and the product corrosion and heat transfer efficiency were tested.

Embodiment 3

[0029] Take 100g of copper nitrate, 200g of sodium dihydrogen phosphate and 78g of potassium chloride in 500g of water, add 2g of glyceric acid, heat to 60°C to dissolve completely, adjust to pH=9 with sodium hydroxide, add water to the total amount It is 1kg. The product was obtained as a completely dissolved aqueous solution after filtration.

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PUM

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Abstract

The present invention relates to a heat-transfer medium having an aqueous solution of one or more kinds of salts wherein at least one kind of salt is selected from the group of coordination compounds formed between one or more metallic ions of copper, silver, gold, nickel, chromium, zinc and cobalt, and organic or inorganic acid. The coordination compounds can optionally contain ammonia. The pH of the heat-transfer medium can be from 6 to 10, preferably is 7. The present invention also relates a method for preparing the heat-transfer medium and its application in heat-transfer equipment.

Description

technical field [0001] The invention generally relates to a heat transfer medium, in particular to a heat transfer medium comprising a composite inorganic salt solution; the invention also relates to a preparation method of the medium and an application of the medium. technical background [0002] In the field of heating, the heat transfer medium used is generally water and / or water vapor, and oil or certain gases are also used as heat transfer medium in a few industries. The thermal conductivity of the gas medium is very small, and the thermal conductivity is low. Although the thermal conductivity of the oil medium is slightly larger, the heating equipment using oil is complicated, which greatly increases the cost and is not suitable for wide application. The most widely used is the water medium, and its disadvantage is still that the thermal conductivity is small, and the heat cannot be completely absorbed. In addition, the water medium often con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/10C23C22/68C23F11/08C23F11/12C23F11/18
CPCC09K5/10F24J2/4649Y02E10/40C23F11/08C23F11/188C23C22/68C23F11/124F24S80/20
Inventor 明绍福
Owner NEW WORLD ZGM
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