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Plan 53A是通过外部的储罐来给密封腔提供清洁流体，储罐内的流体的压力高于被密封介质的压力，然后通过泵来循环。 Plan 53A外接压力源、内置盘管冷却、并设有压力、液位等报警指示装置；储液罐是由惰性气体 (一般为氮气)加压的，隔离液的压力是由一个外部的气体调节器控制的，对隔离液压力有明确的规定，外部密封腔的压力应高于被密封介质的压力0.14~0.17MPa，如果压力太大会导致内密封流向变化，使外密封过早失效。 Plan 53C隔离液由介质通过增压罐升压后 …

API Plan 53A. Pressurised barrier fluid circulation in outboard seal of dual seal configuration through a seal support system. Circulation is maintained by using pumping ring in running condition and with thermosyphon effect in stand still condition.

PLAN 53A system: Connect an external N2 gas supply to the inlet B connection and check for leaks. PLAN 52 system: Make sure the vent valve B1 is open. Begin filling the vessel with the selected barrier fluid through the FILL port until the level is 25mm / 1”

Plan 53A seal support systems are closed loop systems that circulate barrier liquid between a pressurised dual sea arrangement and an external reservoir to cool and lubricate the in- and outboard seals. The barrier liquid is maintained at a higher pressure than the process pressure in the seal chamber.

2023年7月24日 · Plan 53A、B和C是机械密封冲洗系统的不同方案。 - Plan 53A：该方案通过外设加压隔离液储罐提供清洁液体给密封腔，循环由内部输液环完成。 隔离液储罐的压力大于被密封工艺液体压力。

API Plan 53A Pressurised barrier fluid circulation in outboard seal of dual seal configuration through a seal support system. Circulation is maintained by using pumping ring in running condition and with thermosyphon effect in stand still condition.

53a：它的优点在于外部管路系统比较简单，惰性气体加压应用比较普遍，使用比较方便，如果密封泄漏大通过检查储罐的液位就可以发现。 主要缺点在于加压气体直接作用在隔离液上，如果因为气体压力高时容易溶入液体中，这样一来气体进入密封腔，会导致泄漏更厉害，从而给密封的运行增加隐患，一般压力超过2．0mpa时不能使用。 53b：其优点在于解决了方案53a出现汽体与隔离液相溶问题，同时当隔离液出现泄漏可以通过气囊储压器进行一定补偿。 缺点在于用胆式蓄 …

2021年2月24日 · In this blog, I’ll focus on two similar variations—53A and 53B—describing their designs and capabilities and contrasting the two plans to give you a better understanding of where and why you would deploy each of the plans.

PLAN 53A MECHANICAL SUPER SEAL. Title: Model Created Date: 8/11/2016 10:45:42 AM ...