| 内压塔器下封头的强度和稳定性 |
| |
| 引用本文： | 商恩霞,关永祥,刘武昌,宋晓峰,孙秋菊. 内压塔器下封头的强度和稳定性[J]. 石油化工设备, 2012, 0(2): 32-36 |
| |
| 作者姓名： | 商恩霞 关永祥 刘武昌 宋晓峰 孙秋菊 |
| |
| 作者单位： | 天津市创举科技有限公司,天津300130 |
| |
| 摘 要： | 应用第三强度理论和古布金Z形图的罗德参数,对内压塔器下端与裙座对接的标准椭圆封头的受力进行了分析。分析认为,在某些情况下,该标准椭圆封头的弹性失稳将比只承受内压作用时提前发生,因此对该标准椭圆封头的厚度限制应比GB 150—1998《钢制压力容器》中第7.1.2.1条中提出的要求更高,并提出了内压塔器下封头厚度按GB 150—1998《钢制压力容器》中的公式7.1计算不能满足需要时的计算公式。
|
| 关 键 词： | 塔器 标准椭圆封头 裙座 第三强度理论 罗德参数 弹性失稳 屈服 |
Study on Strength and Stability of Bottom Head of Internal Pressure Tower |
| |
| SHANG En-xia,GUAN Yong-xiang,LIU Wu-chang,SONG Xiao-feng,SUN Qiu-ju. Study on Strength and Stability of Bottom Head of Internal Pressure Tower[J]. Petro-Chemical Equipment, 2012, 0(2): 32-36 |
| |
| Authors: | SHANG En-xia GUAN Yong-xiang LIU Wu-chang SONG Xiao-feng SUN Qiu-ju |
| |
| Affiliation: | (Tianjin Chuangju Science and Technology Co.Ltd.,Tianjin 300130,China) |
| |
| Abstract: | Standard elliptical head welded with skirt on the bottom internal pressure tower was analyzed by employing of the third strength theory and Rhodes parameters of the Gubkin Z-shaped map.In some cases,the standard elliptical head just under the elastic instability occurs advancer than under the internal pressure,so higher demands than GB 150—1998 Steel Pressure Vessel,7.1.2.1 of the standard elliptical head of the thickness limit is put forward.Also,in some cases,formula 7.1 of GB 150—1998 Steel Pressure Vessel is not qualified for the thickness calculation of bottom head when doing internal pressure tower design,it should be employed. |
| |
| Keywords: | tower standard ellipse head column skirt third strength theory Rod parameter elastic instability yield |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
