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如在资料〔1〕中已经说明过的,城市煤气设计规范编制组曾于76年夏在北京进行了120米~3球罐的温度实测工作。实测结果表明:“在相同或相近的气象条件下,贮存‘半罐’比‘空罐’(按:‘空罐’系指贮存量很少)的蒸汽压要高”。这一实测结论促使我们把注意集中于贮罐充装率较大的情况。为了解决液化石油气常温压力贮罐设计压力的规定问题,除了需要继续进行实测研究外,也需要进一步从理论上进行探讨。本文将对常温压力贮存液化石油气、充装率为50%的球罐的压力计算方法进行分析讨
As already described in data [1], the urban gas design code group conducted a temperature measurement of 120-3 in the summer of 76 in Beijing. The measured results show that: “In the same or similar weather conditions, the storage of ’half tank’ is higher than that of ’empty tank’ (’empty tank’ means less storage).” This factual conclusion led us to focus our attention on the larger filling rate of the tank. In order to solve the problem of the design pressure of liquefied petroleum gas (LPG) at atmospheric pressure, it is necessary to further study theoretically in addition to the need of continuous measurement. In this paper, we will analyze the pressure calculation method of the spherical tank for storing liquefied petroleum gas at a normal temperature and a filling rate of 50%