The double shell side heat exchanger for use in hydrogenated unit is divided into two kinds of flange type and thread lock ring type.
加氢装置用双壳程换热器分为法兰式和螺纹锁紧环式两种。
An analysis was conducted of the common faults and their causes of the high pressure screw lock ring heat exchangers found in inspection and repair, and some solutions were proposed.
对螺纹锁紧环式换热器检修过程中常出现故障及原因进行了分析，并提出解决办法及建议。
Screw lock ring heat exchangers as main equipments are used in hydrogenation cracking plant which have many shortcomings.
传统的加氢裂化装置主要换热器采用的是螺纹锁紧环式换热器，存在许多缺点。
This paper describes basic structures and working principle for the machine for cutting and expanding the wheel lock ring, showing the design concept about essential elements.
介绍挡锁圈扩切机基本结构及工作原理；机床的几个关键部位的设计构思。
This paper describes basic structures and working principle for the machine for cutting and expanding the wheel lock ring, showing the design concept about essential elements.
介绍挡锁圈扩切机基本结构及工作原理；机床的几个关键部位的设计构思。
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