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First, install rubber isolator:
The choice of rubber vibration isolator: the material is generally neoprene (CR), natural rubber (NR); generally use compression rubber damper, for light weight vacuum pump, shear type rubber damper can be selected; Compared with the spring damper, the vibration damping performance of the rubber damper is relatively different.
Second, install a sturdy pedestal:
In order to meet the more stringent vibration standards, the use of spring isolator when adding a sturdy base is undoubtedly the best choice. Specification of the susceptibility base: the weight of the base is about 1-2 times the weight of the vacuum pump; the frame is made of slot iron, and its height is not less than 1/12 of the length, but not less than 150MM, not higher than 300MM; The wide size should cover the entire vacuum pump and the remaining 10-15 cm on each side. And it is best to cover the bay head; water is poured into the concrete, and a layer of steel mesh is built in one third of the height; a spring isolator is added to distance the base from the foundation to 3-5 cm.
Third, install spring isolator:
1. Selection of vacuum pump spring isolator style:
The utility model generally adopts a self-standing spring damper, which has the advantages of simple structure and low cost; the spring is exposed outside, and the spring state is convenient to be observed at any time, and the spring to be replaced is disposed in advance to avoid excessive damage of the spring rust, causing a sudden drop of the vacuum pump to cause the device. Damage and pipe tearing and other phenomena.
2, the choice of spring:
Generally, the damper manufacturer needs to meet the following requirements: the spring diameter should be not less than 0.8 times its height under the rated load; the spring must have a certain extra stroke, and the vortex flowmeter is at least equal to 50% of the rated static deflection; The horizontal stiffness is at least 100% of the straightness of the steel to ensure the stability of the damper.
3. Selection of spring damper deflection:
Generally, the damper manufacturer's rated spring damper rated deflection (spring rated compression) is generally 25MM (from the frequency value of about 3-4HZ), this deflection can be applied to the vibration of the vacuum pump of 650 rpm. When the speed is lower than 650, it is recommended to use a spring isolator with a deflection of 40 or less. The rotary vane vacuum pump manufactured by Schindler Vacuum Equipment Co., Ltd. can be used for various vacuum operations such as vacuum coating, bulb, thermos, electronic tube, medical, chemical and laboratory. This pump can be used alone or as a booster pump. The front pump of the diffusion pump and the molecular pump.
Method for reducing noise of rotary vane vacuum pump
How can I reduce the noise of the rotary vane vacuum pump when the rotary vane vacuum pump is in operation? The following are three types of vibration isolation methods shared by Schindler vacuum pump technicians: