压力容器磁力反应釜正确设计途径

发布时间:2017/6/12 13:29:20

压力容器磁力反应釜正确设计途径应是：设计者在确定磁力反应釜容器设计使用寿命的基础上，充分地考虑以上四个因素的影响，合理地选择材料、确定腐蚀裕度、提出制造、检验和操作要求等等。

Pressure vessel magnetic reactor design approach is correct: the designer based on determining the magnetic reactor vessel design service life, fully consider the above four factors, reasonable selection of materials, determine the corrosion allowance, the manufacturing and inspection and operation requirements etc..

　　GB150-1998《钢制压力容器》的第3.3.5.2条明确规定：“应根据预期的容器寿命和介质对金属材料的腐蚀速率确定腐蚀裕量”，也就是说腐蚀裕量等于年腐蚀速率乘以容器设计寿命，在腐蚀速率中不仅包括介质对材料的腐蚀，也包括介质流动时对容器材料的冲蚀和磨蚀。在标准中，由设计者确定的磁力反应釜容器设计使用寿命是设计时确定腐蚀裕量的一个重要前提。无独有偶，新版《压力容器安全技术监察规程》的第32条规定：“为防止压力磁力反应釜容器超寿命运行引发安全问题，设计单位一般应在设计图样上注明压力容器设计使用寿命”，也明确了设计单位在确定压力容器设计使用寿命上的责任。应该指出，压力磁力反应釜容器的设计寿命不一定等于实际使用寿命，它仅仅是设计者根据容器预期的使用条件而给出的估计，其作用是提醒使用者，当超过压力容器的设计寿命时应采取必要的措施如：经常测量厚度和缩短检验周期等。

Article 3.3.5.2 the specified GB150-1998 "steel pressure vessel": "should be based on the life and the expected rate of container medium corrosion of the metal materials to determine the corrosion allowance", that is to say the corrosion allowance is equal to the annual corrosion rate multiplied by the container design life, the corrosion rate in the corrosive medium includes not only the materials, but also including the erosion and abrasion of the container material medium flow. In the standard, the design life of a magnetic reactor vessel determined by the designer is an important prerequisite for determining the corrosion margin during design. Coincidentally, the thirty-second provisions of the new "pressure vessel safety technology": "in order to prevent the pressure magnetic reactor vessel over running life cause security problems, the design units should indicate the pressure vessel design service life" in the design drawings, also made clear the design units in determining the design life of pressure vessel on duty. It should be pointed out that the design life pressure magnetic reactor vessel is not equal to the actual life, it is only the designer according to the expected service conditions and containers are estimated, and its role is to remind the user, when the design life is more than the pressure vessel should take necessary measures such as: regular measurement of thickness and shorten the test cycle.

　　压力磁力反应釜容器的设计寿命是一个复杂的问题，涉及到材料选用、腐蚀基础数据、结构设计等一系列设计因素，能否准确地预计，反映了设计者的经验和水平。笔者认为，无论是按国际压力容器设计的惯例，还是为了提高设计的水平和权威性，都应在图纸上标注压力磁力反应釜容器的设计使用寿命，这样做才能真正体现对用户和对设备安全高度负责的精神。

Design life pressure magnetic reactor vessel is a complex problem that involves the design factors of material selection and corrosion of basic data, and a series of structural design, can accurately reflect the expected experience and level designer. The author believes that both the international pressure vessel according to the design practice, or in order to improve the design level and authority, the design must be marked pressure magnetic reactor vessels in the drawings of the life, it can truly reflect the user and highly responsible for safety equipment spirit.