Sound absorbing paint for lowering noise of electrical equipment

A technology for sound-absorbing coatings and electrical equipment, applied in the direction of coatings, etc., can solve problems such as limited effects, equipment damage, and inconvenient dismantling, and achieve the effect of enhancing the effect of sound absorption and noise reduction

Inactive Publication Date: 2016-01-13
孟红琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used control method is the barrier method, which installs a sound insulation barrier in front of the converter transformer or between the converter transformer body and the cooler, but its effect is limited, and it is inconvenient to remove during maintenance
And the Chinese patent application number is 200810007458.4 discloses a kind of sound-absorbing coating and method for noise reduction, which reduces no

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The specific preparation steps of the sound-absorbing coating are as follows:

[0014] Step 1, adding 4 parts of clay powder, 5 parts of sepiolite, 6 parts of mesylate, and 4 parts of acrylic acid in parts by weight into a mixing mixer and stirring evenly to obtain a mixed material;

[0015] Step 2, add the mixed material into the reaction kettle, add 2 parts of azodimethylvaleronitrile and 5 parts of glass fiber, heat to 60°C, stir for 15 minutes, then raise the temperature to 75°C under nitrogen protection, continue Stir for 18 minutes and cool down to room temperature to obtain Intermediate 1;

[0016] Step 3, heating intermediate 1 to 50°C under normal pressure, stirring at 1000 rpm for 10 minutes, and then stirring at 500 rpm for 15 minutes to obtain intermediate 2;

[0017] Step 4: Add 15 parts of ethyl acetate and 1 part of barium stearate to the intermediate material 2, and mix well to obtain the sound-absorbing coating.

[0018] The paint prepared above can b...

Embodiment 2

[0020] The present invention is further improved on the basis of Example 1, wherein before heating to 60°C in step 2 during the preparation of the sound-absorbing coating, 2 parts by weight of ammonium sebacate and 3 parts of urea are added, Other processes are exactly the same as the preparation method of the sound-absorbing coating in Example 1.

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PUM

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Abstract

The invention discloses sound absorbing paint for lowering noise of electrical equipment. The sound absorbing paint is prepared through the following steps that 1, by weight, clay powder, sepiolite, methyl sulfonic acid ester and crylic acid are added into a mixing and stirring machine for being evenly stirred and mixed, and a mixed material is obtained; 2, the mixed material is added to a reaction kettle, azo dimethyl valeronitrile and glass fibers are added and heated to 60 DEG C, stirring is conducted for 15 minutes, then the temperature is raised to 75 DEG C under the protection of nitrogen gas, stirring is continued for 18 minutes, the mixture is lowered to the room temperature, and a first intermedium is obtained; 3, the first intermedium is heated to 50 DEG C at normal pressure and stirred for 25 minutes, and a second intermedium is obtained; 4, ethyl acetate and barium stearate are added to the second intermedium for being evenly mixed, and the sound absorbing paint is obtained. The sound absorbing paint is sprayed on a firewall of a converter transformer, the sound absorption and noise reduction effects are greatly improved, and it is proved by tests that the noise reduction rate of a noise reduction device sprayed with the sound absorbing paint reaches over 90%.

Description

technical field [0001] The invention relates to a sound-absorbing coating used for noise reduction of industrial and electric devices. Background technique [0002] Industrial production and power equipment operation will cause noise pollution to the environment; for example, during the operation of the converter transformer, due to the high noise, it will cause serious noise pollution to the surroundings, so the noise emitted by it needs to be controlled . The commonly used control method at present is the barrier method, which installs a sound insulation barrier in front of the converter transformer or between the converter transformer body and the cooler, but its effect is limited, and it is inconvenient to remove during maintenance. And the Chinese patent application number is 200810007458.4 discloses a kind of sound-absorbing coating and method for noise reduction, which reduces noise through the method of combining sound barriers and firewalls. Although a certain nois...

Claims

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Application Information

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IPC IPC(8): C09D133/02C09D7/12C09D5/00
Inventor 孟红琳
Owner 孟红琳
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