隔离阀在真空系统中的作用

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原文：
隔离阀在真空系统中的作用：　　1.开关气路，当阀1和阀4关闭，阀2打开时，机械真空泵Ⅲ对容器I抽真空，气流流经预真空抽气管路；当阀2关闭，阀4打开时，机械泵可单独对扩散泵抽真空；当阀1和阀4同时打开时，扩散泵和机械泵可同时工作，对容器进行抽空，此时气流流经扩散泵。可见，阀门在这种操作中的作用是开关气路，改变气流的流经路线。　　2.控制气流大小，调节真空度在图1中，调节阀1的阀盖开启角度，即可调节流经管路的气流量大小；关闭阀2和阀4，通过放气阀3可以给机械泵Ⅲ的入口放成大气；通过放气阀5可以调节容器内的真空度。　　3.定量充气，在玻璃阀的柱塞上有个一定体积的小洞，当小洞转向右边和高压气瓶连通时，小洞中就可充满高压气体；当它转向左边和真空容器连通时，就把该体积的高压气体放进容器中去，这样就起到了定量充气的作用。　　真空阀门的种类繁多，通常按阀门的职能、结构型式、驱动方式、材料和用途进行分类。

“Isolation valve in the vacuum system's role”是由中国隔膜阀网提供的阀门行业新闻，译文仅供参考。另外，中国隔膜阀网还提供相关产品搜索：直通(流)式隔膜阀、气动隔膜阀、电动隔膜阀、手动隔膜阀、卫生级隔膜阀等。

译文：
Isolation valve in the vacuum system's role: 1 Switch, gas lines, valves 1 and 4 when the valve closed, valve 2 is open, mechanical vacuum pump Ⅲ on the container I vacuum, air flows through the pre-vacuum exhaust line; when valve 2 closed, the valve 4 is opened, the mechanical pump can be alone on the diffusion pump vacuum; when the valve 1 and valve 4 open at the same time, diffusion pump and mechanical pump can simultaneously work on the container for taking the time, when air flows through the diffusion pump. Shows the valve in this operation is the role of switching gas, change the air flow through the line. (2) control flow size, adjust the vacuum in Figure 1, the control valve 1 of the opening angle of the valve cover, you can adjust the volume of air flowing through the pipe size; off valve 2 and valve 4, through the release valve to the mechanical pump 3 can be ⅲ put into the atmosphere of the entrance; 5 can be adjusted through the release valve of the vacuum container. 3 of quantitative inflation, the glass valve plunger has a certain volume of the hole, when the hole to the right connectivity and high-pressure cylinder, the hole can be filled in the high-pressure gas; when it turned to the left and the vacuum container connected , put the volume to high-pressure gas into the container, so that played a role in the quantitative inflation. A wide range of vacuum valves, usually by the valve function, structure type, drive, and use of classified material.

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原文来源：http://www.1gemofa.com/

2011-12-29 06:13