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本刊82年第2期在朱功泽同志“关于地下煤气管道气密性试验探讨”一文中,谈到了地下煤气管道气密性试验压力降的计算公式有关温度及大气压修正问题。另85年第4期在万成略同志“地下煤气管道气密性试验实际压力降计算式温度修正的分析”中又专门对此问题进行了归纳与分析。现在,张海喜等同志根据他们的工作实践认为:ΔP既不能以始点或终点作参考点,也不能用人为的T作修正值,而是以与始、终状态的温度线性平均作参考值。为此,我们将张海喜同志“也 谈地下煤气管道气密性试验实际压力降的计算公式”文章予以发表。以上三篇文章,概括了温度修正的基本看法。据此,本刊有关温度修正问题的探讨暂告一段落,并待各地根据上述作者推荐的温度修正方法使用一段时间后(或在国家制定施工验收规范时)进行统一。
In the article “On Exploring the Airtightness Test of Underground Gas Pipeline” by Comrade Zhu Gongze in article 2 of the 82nd issue of the journal, the correction formulas for the pressure drop of the gas tightness test for underground gas pipelines are discussed with respect to temperature and atmospheric pressure correction. In the fourth quarter of the other 85 years, Comrade Wan Chengluo’s “Analysis of the Temperature Correction of the Actual Pressure Drop of the Underground Gas Pipeline Airtightness Test” has specifically summarized and analyzed this issue. Now, according to their work practices, Zhang Haixi and his comrades believe that ΔP can neither use the starting point nor the end point as a reference point, nor can it use the artificial T as the correction value, but use the linear average of the temperature of the initial and final states as the reference value. To this end, we published the article “Comments on the formula for calculating the actual pressure drop of the gas tightness test of underground gas pipelines” written by Comrade Zhang Haixi. The above three articles summarize the basic views of temperature correction. Based on this, the issue of temperature correction in this journal has been temporarily discussed, and will be unified when local temperature correction methods recommended by the above authors are used for a period of time (or when the state formulates construction acceptance standards).