[China Glass Network] Noise level of 30 to 40 decibels is a relatively quiet and normal environment; more than 50 decibels will affect sleep and rest; 70 decibels or more interfere with conversation, causing distraction, lack of concentration; long-term work or life at 90 A noise environment above decibels can seriously affect hearing and other diseases such as cardiovascular diseases. Therefore, the pollution of noise is very harmful. Effectively reducing the noise of high and low temperature test chambers is something we must pay attention to. Today Xiaobian teaches you some tips to keep away from the noise of high and low temperature test chambers.
When noise occurs, we must first learn to determine what causes it, and then reduce the noise according to the specific situation.
1. Inhaling liquid refrigerant causes the operation of the liquid hammer adjustment system to release excess refrigerant;
2. See the degree of wear of the needle valve, whether the cone surface and the valve seat can be tightly closed, if not, the pilot flow rate will be unstable, so that the pressure fluctuation generates noise;
3. Check if air is mixed in the oil to form a cavitation and make noise. If the deformation of the high and low temperature test chamber components is as long as it is replaced, the air is mixed with air, and the air is removed in time to prevent the air from re-entering to reduce the noise.
4. See if the damping spring is deformed. If the deformation will affect the stability of the voltage regulating function, it will emit noise.
5, high and low temperature test chamber system too much lubricant to produce liquid impact, repair the lubricating oil system to make it work properly;
6. The noise generated by the compressor cylinder and crankshaft is replaced by a compressor.
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