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Gel composition with hydrogen absorption function and preparation technique thereof

A technology of gel composition and function, applied in the field of gel composition with hydrogen absorption function, can solve the problems of improper maintenance, high and low temperature overheating, discharge failure, deterioration of operating environment, etc.

Inactive Publication Date: 2012-12-19
邹斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some new problems have been encountered at present. In actual operation, high and low temperature overheating and discharge failures often occur due to factors such as manufacturing quality, commissioning and installation, deterioration of the operating environment, and improper maintenance. The pure hydrogen content in the oil often exceeds the standard. In insulating oil The dissolved gas in the medium will dissociate under the action of the electric field, releasing high-energy electrons, which will collide with oil molecules, which may break the C-H bond or C-C bond, and dissociate the H atoms or CH3 atomic groups in it to promote gas generation.

Method used

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  • Gel composition with hydrogen absorption function and preparation technique thereof
  • Gel composition with hydrogen absorption function and preparation technique thereof
  • Gel composition with hydrogen absorption function and preparation technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The preparation of embodiment 1 gel composition

[0015] Stir 89.75g of paraffin base oil S-6III, raise the temperature to about 120°C, keep it for 2-5h, take 5g of styrene-ethylene / ethylene / styrene triblock copolymer and add it to the paraffin base oil, stir at 110±10°C for 1 ~2h, add 0.5g antioxidant, 0.5g pour point depressant and 4g silica powder after the copolymer and white mineral oil system are miscible, stir for 0.5 hour, cool to 100 degrees to normal temperature (including normal temperature), add 0.25g Silver molecular sieves were stirred for 0.5 hours and then vacuumed.

Embodiment 2

[0016] The preparation of embodiment 2 gel composition

[0017] Stir 93.75g of naphthenic oil KPH4006, raise the temperature to about 120°C, keep it for 2-5h, take 5g of styrene-ethylene / propylene diblock copolymer into paraffin base oil, stir at 110±10°C for 1-2h, wait After the copolymer and white mineral oil system are miscible, add 0.5g of antioxidant, 0.5g of pour point depressant and stir for 0.5 hours, cool to 100 degrees to normal temperature (including normal temperature), add 0.25g of platinum molecular sieve and stir for 0.5 hours, then vacuumize.

Embodiment 3

[0018] Example 3 Hydrogen absorption capacity detection (volumetric method) of the gel composition:

[0019] The hydrogen absorption capacity test of the gel composition is to calculate the amount of hydrogen absorbed by using a constant container at room temperature (25 degrees) and statically measuring the pressure change of the volume. This method is usually used in chemical absorption research. Despite the relatively low hydrogen uptake values, the accuracy of this method can reach + / -20%.

[0020] Vacuum the gel composition first and then introduce a certain pressure of high-purity hydrogen (negative pressure). When chemical absorption starts, the pressure of the system will gradually decrease, and the pressure change value will be recorded at different times. Pressure observations were stopped when the pressure changed less than 0.01 Torr. The total hydrogen uptake value is calculated from the difference between the pressure change and the final sample weight.

[0021]...

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Abstract

The invention discloses a gel composition with hydrogen absorption function and a preparation technique thereof. The gel composition comprises 80-95% of oil base material, 0-10% of thixotropic agent, 2-9% of viscosity modifier, 0.2-1% of antioxidant, 0.2-1% of pour-point depressant and 0.05-5% of hydrogen absorption material. The gel composition disclosed by the invention can be filled in transformers and electrolytic capacitors to perform the function of electric insulation, and also filled into fiber loose tubes to perform the function of fiber protection; and besides the common applications, the gel composition with hydrogen absorption function can also absorb generated hydrogen. The gel composition can be widely used in other fields in which hydrogen damage may be generated.

Description

technical field [0001] The present invention relates to a gel composition, in particular to a gel composition with hydrogen absorption function, which can be widely used in the fields of transformers, electrolytic capacitors, optical fiber cables (especially OPGW) and the like . Background technique [0002] The damage of hydrogen has always been the focus of attention, and the damage of hydrogen is more prominent in the following fields. [0003] Transformer is one of the important equipment in the process of electric energy transmission and distribution. At present, the insulating materials of large transformers are mainly insulating oil and insulating paper. The insulating oil is a mixture of hydrocarbons obtained through distillation and refining of petroleum. Ultra-high voltage transformers The oil is mostly naphthenic transformer oil, which has good dielectric properties and anti-oxidation stability, and contains an appropriate amount of aromatics, which can improve t...

Claims

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Application Information

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IPC IPC(8): C08L91/00C08L53/00C08L23/16C08L53/02C08L33/10C08L23/00C08K3/36C08K5/13C08K3/34
Inventor 邹斌
Owner 邹斌
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