The noise of the constant temperature and humidity test box has always plagued users for a long time. Many people seek effective ways to reduce the noise of the constant temperature and humidity test box. The engineer gave the user a few suggestions. You may wish to give it a try. If you need professional maintenance personnel to help you finish The steps still need to contact the manufacturer for cooperation.
Adjust the balance of the four feet at the bottom of the constant temperature and humidity test chamber.
The constant temperature and humidity test box should be placed on a flat and firm ground. Make the bottom four corners of the constant temperature and humidity box on a flat surface to achieve equilibrium.
The pipeline and box are reinforced and reliable.
It is necessary to check whether the joint reinforcement part between the adjustment external pipeline and the constant temperature and humidity test chamber is loose, so as to avoid resonance when the compressor is working. Therefore, the outer pipeline must be fixed well, and the bolts must be added with spring washers to prevent loosening.
The compressor base should be strong.
If the compressor is pressed tightly by hand, the noise is significantly reduced, and the noise increases when the hand is lifted. Generally, the fixed vibration damping rubber pad of the compressor base is not uniformly stressed or the bolts are loose, and the compressor bottom plate is not strong. Adjust and tighten Connect part of the bolt and replace the washer that has lost its elasticity.
Nail the sound-absorbing cardboard along the wall.
Glue glass fiber cotton and other sound-absorbing materials to the cardboard, and then nail the cardboard to the wall behind the constant temperature and humidity test box (compressor side). The cardboard is 10 cm-20 cm larger than the back side of the constant temperature and humidity test box. can.
Confirm whether the compressor is malfunctioning.
The noise does not decrease when pressing the top of the compressor by hand. Usually, the air gap between the piston and the cylinder inside the compressor is too large to cause noise. At this time, the compressor should be replaced. In addition, when the door of the constant temperature and humidity test box is not opened, it is about 3 meters away from the constant temperature and humidity test box. It is obvious that you can hear the boiling sound or the interval "chicking sound", which is a refrigeration pipeline failure, and should be repaired by professionals.
Press the tube to oscillate with a rubber block.
If the constant temperature and humidity test box is noisy during use, you can take the waste bicycle tires and cut them into a circle with a diameter of 30 mm. Cut out a circular hole with a diameter of about 5 mm in the middle, and then cut from the outside to the center to facilitate The rubber is attached to the tube. When the compressor of the constant temperature and humidity test chamber is working, touch the pipe with your hand. Any tube with a trembling feeling can be covered with several rubber blocks. A constant temperature and humidity test chamber needs 10-20 pieces, and the noise will be immediately Will come down. This is because the rubber block suppresses the "resonance" that occurs when the tube oscillates.
Do not put debris on the top of the constant temperature and humidity test box to avoid resonance and noise.