杠杆式和内平衡直杆式低–低压调压器性能差异研究

Research on the Lever Type and Internal Balance Bar Type Low to Low Gas Pressure Regulating Installation Performance Difference

摘要: 本文针对目前市场应用于中–低压入户的两种典型结构(杠杆式和内平衡直杆式)的低–低压调压器，对比分析了这两种自力式调压器的结构原理和受力平衡特点及其对关键性能的影响。通过分析和计算，对杠杆式和内平衡直杆式两种低–低压调压器结构原理对安全可靠性的影响、力平衡关系、力平衡与受力情况、弹簧力损失及其与关键性能指标的关系，找出二者在安全可靠性、稳压精度、关闭压力和流通能力等关键性能指标上的差异，分析了杠杆式调压器低–低压使用工况存在的不足，并进行了试验验证。结果证明，在低–低压工况下，内平衡直杆式调压器的安全可靠性、稳压精度等级、关闭压力等级和流通能力优于杠杆式调压器。

Abstract: This article compares and analyzes the structure principle, the characteristics of the force balance and the impact it has on key performance of the two typical structures (lever type and internal balance bar type) of low to low gas pressure regulating installation currently used in the market for medium to low voltage households. Through analyzing and calculating the influence of the basic structure of the lever type and the internal balance bar type low to low gas pressure regulating installation have on safety and reliability, force balance relationship, force balance and force condition, spring force loss and its key performance, the relationship between the two indicators, finding the differences in key performance indicators such as safety and reliability, voltage stabilization accuracy, closing pressure level, circulation capacity, etc., analyzing the shortcomings of the low to low pressure operating conditions existing in the lever type gas pressure regulating installation, and conducting physical test verification. Results prove that under low to low voltage operating conditions, the internal balance bar type is better than the lever type in terms of safety, reliability, voltage stabilization accuracy, circulation capacity and closing performance.