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单级蒸汽喷射器的特点是温升小、循环水量大,因此不便于进行质的调节。安装两级喷射器,虽然可以克服上述缺点,但由于加热级喷射器的本身构造形式有些问题,造成系统复杂、噪声大,甚至于有很大震动。为解决上述问题,我们学创结合,把喷射器和加热器两级合并为一体,试制成一种组合式双级蒸汽喷射加热器(简称组喷器),既保持了过去两级喷射器的优点,又具有结构紧凑、便于安装和噪声小的优点。在吉林省石油化工局1号楼家属宿舍采暖工程上我们试用了这种组喷器,经过一个采暖期的运行,效果良好。
Single-stage steam ejectors are characterized by low temperature rise and high circulating water volume, making it inconvenient to perform qualitative adjustments. The installation of two-stage injectors can overcome the above-mentioned disadvantages, but due to some problems in the construction of the heating-grade injectors, the system is complicated, the noise is large, and there is even a great deal of vibration. In order to solve the above problems, we learned and combined the two stages of the injector and the heater into one, and tried to make a combined two-stage steam injection heater (referred to as the group of injectors), which not only maintained the previous two-stage injectors The advantages, but also has the advantages of compact structure, easy installation and low noise. In the heating engineering of the dormitory of the Department of Building 1 of the Petrochemical Bureau of Jilin Province, we tested this group of jets. After a period of heating, the results were good.