How to solve the noise of graphite furnace? Causes and control measures
Oct 18,2024
Enray
Slight noise is the normal production situation in the production process of intermediate frequency graphitization furnace, but if the noise is huge, there must be a problem with a certain part, which needs to be checked one by one and then the right medicine is given. Huge noise will bury hidden dangers to the personal safety of employees and disturb the production and life of nearby residents. Here is how to solve the noise of intermediate frequency graphitization furnace.
Causes of Noise in 1. Graphitization Furnace
1After the intermediate frequency graphitization furnace is started, the voltage does not rise high, the reactor is particularly loud, dull and trembling, there are over-current or over-voltage faults from time to time, and sometimes even burn out the inverter tube. Most of these faults are reactor problems.
2. The noise of medium frequency graphitization furnace is mainly generated from medium frequency power supply, furnace body and hydraulic pump. Secondly, the degree of noise generated by transformers and pumps is relatively small.
3. When the medium frequency graphitization furnace with high power density is running, the noise is relatively large due to the vibration of the induction coil, yoke and other components.
4It is possible that the defective thyristor of a certain phase causes regular intermittent oscillation. At that time, even the copper bar can vibrate and shake, which is visible to the naked eye.
Noise Control Measures of 2. Medium Frequency Graphitization Furnace
1Installation of soundproof door
It is usually required to leave the furnace body 1m on the working platform of the furnace.And the noise at the height of 1m shall be ≤ 85dB (excluding background noise). Therefore, when installing soundproof doors in the two medium frequency graphitization furnace rooms, the sound insulation amount should be greater than 25dB, and the overall sound insulation performance should be in line with the national requirements for the noise isolation effect of medium and low frequencies. The door frame and door leaf should be treated with rust prevention on the surface.
2Noise reduction of heat dissipation ventilation system
The large amount of heat generated by the medium frequency graphitization furnace needs to be discharged in time. The fan that discharges the heat is very noisy, and it is also the main noise source of the medium frequency furnace plant. In order to effectively remove the heat and prevent the noise from leaking out, it can be installed in the medium frequency graphitization furnace room 2The air inlet muffler and two exhaust mufflers are equipped with two low-noise axial flow fans for forced exhaust.
32. Vibration reduction and noise reduction of furnace body
When the medium frequency graphitization furnace is running with high power, the noise is relatively large due to the vibration of the induction coil, yoke and other components. In order to reduce vibration and noise, some noise reduction measures can also be taken for the furnace structure. If necessary, the furnace structure can take some measures to reduce noise, such as the inner wall of the furnace shell liner sound insulation material, maintenance hole cover plate with rubber pad, and the furnace structure of the cavity with filler.
4,The reactor is treated with glue to reduce inter-turn vibration.
When the medium frequency graphitization furnace is running at high power, the noise is relatively large due to the vibration of the reactor wire-clad copper tube, magnetic yoke and other components. In order to reduce vibration and noise, the reactor can be filled with insulating and damping glue, which can effectively reduce the vibration of the copper tube between the wire packages and suppress noise.
5. Sound absorption in machine room
The wall surface and top surface of the machine room are treated with sound absorption to avoid the noise caused by the noise of the intermediate frequency graphitization furnace in the machine room. The sound absorption materials of the wall surface and top surface of the machine room are mainly used to absorb medium-high sound waves, with high flow resistance and porosity higher than 80%.. At the same time, for the machine room through the wall pipe, pipeline, etc. also to carry out sound insulation treatment.
The above is for the intermediate frequencygraphitizationHow to solve the problem of furnace noise, the huge noise will produce sound pollution around, disturb the attention of the staff during production and operation, and affect the daily life and rest of the surrounding residents. Produced by Hunan Enruimedium frequency induction graphitization furnaceThere is no obvious vibration and bumps, and maintenance technicians can be trained for users. You are welcome to leave a message or call for advice.
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