The principle and working process of vacuum formation in the condenser
Thread Content
The principle and working process of vacuum formation in the condenser
The exhaust steam after the steam is completed in the turbine enters the condenser and is cooled by the cooling water and condenses into water. The volume shrinks thousands of times and the pressure drops sharply, thus forming a vacuum. In order to ensure a high vacuum in the condenser, a steam extractor is installed to extract the non-condensable gas in the condenser. At the same time, the condensate in the condenser is pumped out of the boundary area as boiler feed water to ensure that the liquid level is not too high to prevent flooding of the tubes and affecting the heat exchange effect.
I remember there were several posts discussing vacuum formation or ejector selection. These links must be useful.: Original post by Moderator Luo: What is the principle of using a three-stage jet pump for the second stage evaporation? http://bbs.hcbbs.com/viewthread.php?tid=595518&page=1#pid3375241 Original post by the original poster: Why should three injectors be used in the second stage evaporation? http://bbs.hcbbs.com/viewthread.php?tid=631220&page=1#pid3628097
Using an ejector to do work is mainly a conversion of static pressure energy into kinetic energy, causing the pressure to decrease and forming negative pressure.