Relative position of the vacuum buffer tank and the vacuum pump
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I am working on a chemical engineering project that involves vacuum pumps, and I have a few questions for everyone: 1. Must the check valve at the inlet of the vacuum pump be installed on a horizontal pipeline and of the lift-type? Are there any better valve recommendations? 2. The vacuum buffer tank has the function of separating any materials that may be carried along. When it is installed, both the tank and the vacuum pump are placed on the ground, resulting in a large U-shaped section in the pipeline from the outlet of the buffer tank (the top) to the inlet of the vacuum pump. Is this piping arrangement unreasonable? Do I need to place the vacuum pump on a platform? 3. The documentation states that vacuum pipelines should be kept away from high-temperature pipelines. However, in certain production processes, the process gas extracted by our vacuum system may contain a substance that solidifies at normal temperatures. To prevent this substance from solidifying within the pipelines, the supplier of the process equipment recommends installing electric heating in these pipelines. Is this approach reasonable?
2\ The old-style separation tank serves to control the liquid level in the pump chamber.
2、There is no need to raise the vacuum pump. 3. Staying away from high-temperature pipes is generally done to improve the vacuum level and prevent the vacuum pump from drawing in hot gases. Electric heating is installed in the vacuum pipelines to prevent solidification. 【When two rights conflict, choose the lesser harm】
Electrical heating in the vacuum pipeline is used to prevent material condensation; it is best to use a temperature corresponding to the lowest freezing point of the material, without affecting the performance of the vacuum pump； As for the relative height between the vacuum buffer tank and the vacuum pump, it doesn’t have much of an impact; there is no need to raise the vacuum pump.
This post was last edited by Sammy_Wang on 2016-10-10 at 14:59. If it’s possible, why not use a dry, oil-free vacuum pump directly? Using an oil-free vacuum pump makes all of this a no problem.
Electric heating in vacuum pipelines is used to prevent material condensation.
1. There are relevant standards to follow regarding the type of check valve, and it should be selected in accordance with these specifications； 2, 3, …… It is necessary to understand the process flow as well as the specific physical and chemical properties of the materials ；