五月婷婷中文_总裁与秘书啪啪日常H_精品视频国产香蕉尹_亚洲图片日本视频免费_男女乱滛免费视频网站_藏经阁91福利私人试看_99久久国产综合精品一级_国产精品午夜福利电影_另类福利亚洲丝袜激情在线_免费在线观看最新理论片

Nowadays, more and more attention is paid to environmental protection, and the requirements for some noise are also very high. When the vacuum pump unit vibrates, it may produce some noise, which has an impact on the surrounding environment. Here we will introduce the solution to the vibration of the vacuum pump unit.

1、 Install spring vibration isolator.

1. Selection of spring vibration isolator style for vacuum pump unit:

Generally, self supporting spring shock absorber is selected, which has the advantages of simple structure and low cost; the spring exposed is easy to observe the state of spring at any time, and the spring that needs to be replaced shall be disposed in advance to avoid sudden settlement of vacuum pump unit, equipment damage and pipeline breakage caused by excessive spring corrosion.

2. Spring selection:

Generally, the spring selected by the shock absorber manufacturer shall meet the following requirements: the spring diameter shall not be less than 0.8 times of its height under the rated load; the spring must have a certain additional stroke; the vortex flowmeter shall be at least equal to 50% of the rated static deflection; the horizontal stiffness of the spring shall be at least 100% of the rigid steel to ensure the stability of the shock absorber.

3. Selection of spring damper deflection:

Generally, the rated deflection (spring compression) of the arch spring damper proposed by the shock absorber manufacturer is generally 25mm (the self frequency value is about 3-4hz), which can be applied to the vibration isolation of vacuum pump unit at 650 rpm. When the speed is lower than 650, spring isolators with deflection below 40 are recommended.

2、 Add rubber vibration isolator.

Selection of rubber vibration isolator: materials are generally chloroprene rubber (C.R), natural rubber (N.R); compression type rubber shock absorber is generally selected, and shear type rubber damper can be selected for light weight vacuum pump unit; compared with spring damper, the vibration isolation performance of rubber shock absorber is relatively different.

3、 Add Sui base.

In order to meet the more stringent vibration system standard of vacuum pump unit, it is undoubtedly the best choice to use spring vibration isolator when installing a flexible base.