7 major noise reduction methods for constant temperature and humidity test chamber
The constant temperature and humidity test chamber noise has been plaguing users for a long time. Many people are looking for an effective way to reduce the noise of the constant temperature and humidity chamber. The engineer gave the user a few comments. You may wish to try it. You need professional maintenance personnel to assist you. The steps still need to be contacted by the manufacturer.
1. Adjust the balance of the four feet at the bottom of the constant temperature and humidity test chamber.
The constant temperature and humidity test chamber should be placed in a flat, firm place on the ground. The balance is achieved by placing the four corners of the bottom of the constant temperature and humidity chamber on a plane.
2. The pipeline and the box are firmly reinforced.
It is necessary to check whether the connection reinforcement between the outer pipe and the constant temperature and humidity test chamber is loose, so as to avoid resonance when the compressor is working. Therefore, the outer pipe must be fixed, and the bolt should be spring washer to prevent loosening.
3. The compressor base should be firm.
If the compressor is pressed tightly by hand, the noise is obviously reduced, and the noise is increased by hand. Generally, the fixed vibration damping pad of the compressor base is unevenly stressed or the bolt is loose, and the bottom plate of the compressor is not firm. It should be adjusted and tightened. Connect some bolts and replace the washer that lost its elasticity.
4. Place the sound-absorbing cardboard along the wall.
Sticking the sound absorbing material such as glass fiber cotton to the cardboard, and then nailing the paperboard to the wall behind the constant temperature and humidity test chamber (compressor side). The paperboard is 10 cm to 20 cm larger than the circumference of the back side of the constant temperature and humidity test chamber. can.
5. Determine if the compressor is malfunctioning.
When the hand presses the top of the compressor, the noise is still not reduced. Usually, the internal piston and cylinder clearance between the compressor is too large and the noise is generated. In this case, the compressor should be replaced. In addition, when the constant temperature and humidity test chamber is not open, it is about 3 meters away from the constant temperature and humidity test chamber. It is obvious that the sound of the pan or the interval is “squeakyâ€. It is a failure of the refrigeration line and should be repaired by a professional.
6. Use a rubber block to suppress tube vibration.
The constant temperature and humidity test chamber has a large noise during use. The bicycle tire can be taken out and cut into a circular shape with a diameter of 30 mm. A circular hole with a diameter of about 5 mm is cut out in the middle, and then cut from the outside to the center to Apply the rubber tape to the tube. When the constant temperature and humidity test chamber compressor is running, touch the pipe by hand. If there is a tube with a feeling of shaking, you can put a few rubber blocks on it. A constant temperature and humidity test box needs to cover 10-20 pieces. Will come down. This is because the rubber block suppresses the "resonance" produced by the vibration of the tube.
7. Do not put any debris on the top of the constant temperature and humidity test chamber to prevent resonance from generating noise.
Article source: Beijing Yashilin Test Equipment Co., Ltd.
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