Numerical Simulation Study on Distribution Characteristics of SF<sub>6</sub> Gas Leakage in SuzhouNantong GIL Integrated Gallery

GUAN Weimin; BIAN Chao; TAN Tingyue; ZHAO Chu; CHENG Qianshan

doi:10.13296/j.1001-1609.hva.2020.11.017

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Numerical Simulation Study on Distribution Characteristics of SF₆ Gas Leakage in SuzhouNantong GIL Integrated Gallery

更新时间：2025-04-26

- Numerical Simulation Study on Distribution Characteristics of SF₆ Gas Leakage in SuzhouNantong GIL Integrated Gallery
- High VoltageApparatus Vol. 56, Issue 11, Pages: 102-110(2020)
- 作者机构：
  
  1. 国网江苏省电力有限公司检修分公司
  2. 西安西电电气研究院有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.11.017
  CLC： TM75
- Published：2020
- 稿件说明：
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[1]关为民,卞超,谭婷月,赵矗,程潜善.苏通GIL综合管廊SF_6气体泄漏分布特性数值模拟研究[J].高压电器,2020,56(11):102-110.

GUAN Weimin, BIAN Chao, TAN Tingyue, et al. Numerical Simulation Study on Distribution Characteristics of SF₆ Gas Leakage in SuzhouNantong GIL Integrated Gallery[J]. High voltageapparatus, 2020, 56(11): 102-110.
[1]关为民,卞超,谭婷月,赵矗,程潜善.苏通GIL综合管廊SF_6气体泄漏分布特性数值模拟研究[J].高压电器,2020,56(11):102-110. DOI： 10.13296/j.1001-1609.hva.2020.11.017.

GUAN Weimin, BIAN Chao, TAN Tingyue, et al. Numerical Simulation Study on Distribution Characteristics of SF₆ Gas Leakage in SuzhouNantong GIL Integrated Gallery[J]. High voltageapparatus, 2020, 56(11): 102-110. DOI： 10.13296/j.1001-1609.hva.2020.11.017.

摘要

苏通特高压气体绝缘输电线路（GIL）综合管廊输送容量大

电压等级高

输送距离长

管廊内存在SF

气体泄漏和累积的可能性要远高于其他管廊

目前针对管廊中SF

的泄漏量测量实施困难

缺乏数据

因此需要借助数值模拟的方法对管廊内SF

气体分布特性进行研究。依据管廊结构

建立管廊的物理模型;采用计算流体力学（CFD）理论进行了数值模拟计算

研究了不同泄漏口朝向、不同泄漏口高度以及不同泄漏口面积对管廊内SF

空间分布特性的影响

为管廊内SF

监测器布点方案提供参考。结果表明:管廊内的SF

分布特性主要受流动方式的影响

涡旋区域的SF

体积分数较高;管廊下部体积分数要大于上部体积分数

靠近管廊两侧的体积分数比中心体积分数高;泄漏口面积越大

泄漏量越大

管廊内的高体积分数区域越多。

Abstract

Suzhou-Nantong ultra-high voltage gas insulated transmission line（GIL）pipe gallery has large transmission capacity

high voltage level

long conveying distance

the possibility of SF

gas leakage and accumulation in the gallery is much higher than others. The leakage measurement of SF

is difficult to implement and lacks data. Therefore

numerical simulation is needed to study the distribution characteristics of SF

gas in the gallery. Firstly

the structure of the pipe gallery is analyzed

and the p

hysical model of the pipe gallery is established. Then

the numerical simulation is carried out based on the theory of computational fluid dynamics（CFD）. The effects of different leakage port orientation

different leakage port height and different leakage port area on the spatial distribution characteristics of SF

in the pipe gallery are studied

respectively

provided reference for the SF

monitor layout in the gallery.The results show that the distribution of SF

is mainly affected by the flow pattern. The concentration of SF

in the vortex region is higher than that in other regions; The concentration in the lower part of the pipe gallery is larger than that in the upper part

and the concentration near the pipe gallery is higher than that in the center; The larger the leakageportarea

the greater the leakage

the more high concentration areas in the pipe gallery.

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Related Institution

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⁰

Numerical Simulation Study on Distribution Characteristics of SF6 Gas Leakage in SuzhouNantong GIL Integrated Gallery

DOI：10.13296/j.1001-1609.hva.2020.11.017

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Abstract

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Numerical Simulation Study on Distribution Characteristics of SF₆ Gas Leakage in SuzhouNantong GIL Integrated Gallery