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发明授权
CN109282145B 一种输气管道在线热备调压方法 有权 转让

一种输气管道在线热备调压方法
摘要：
本发明公开了一种输气管道在线热备调压方法，该方法包括：连接在用调压支路管线和备用调压支路管线；在在用调压支路管线和备用调压支路管线分别串接各种阀门和监测设备；将各个压力控制器和压力高高继电器接入在用调压支路管线和备用调压支路管线；天然气输入在用调压支路管线和备用调压支路管线；设定各个压力控制器和压力高高继电器的压力设定值；SCADA系统根据第一动作压力调节阀和第二动作压力调节阀的压力设定值选择在用调压支路管线和备用调压支路管线进行在线调压；在线调压结束后，天然气通过所述第二汇管输出。本发明的有益效果：可实现输气管道站场调压系统整个切换过程，无需人工干预，在线自动完成，平稳过渡，可靠性高。
摘要（英）：

The invention discloses a gas pipeline online hot standby pressure adjusting method. The method comprises the steps that an in-use pressure adjusting branch pipeline and a standby pressure adjusting branch pipeline are connected; the in-use pressure adjusting branch pipeline and the standby pressure adjusting branch pipeline are connected with various valves and monitoring equipment in series; pressure controllers and high-pressure relays are connected to the in-use pressure adjusting branch pipeline and the standby pressure adjusting branch pipeline; natural gas is conveyed into the in-use pressure adjusting branch pipeline and the standby pressure adjusting branch pipeline; the pressure set values of the pressure controllers and the high-pressure relays are set; an SCADA system selects the in-use pressure adjusting branch pipeline and the standby pressure adjusting branch pipeline to conduct online pressure adjusting according to the pressure set valve of a first action pressure adjusting valve and the pressure set valve of a second action pressure adjusting valve; and after online pressure adjusting is completed, the natural gas is output through a second collecting pipe. The gas pipeline online hot standby pressure adjusting method has the beneficial effects that the whole switching process of a gas pipeline station yard pressure adjusting system can be achieved, manual intervention is not needed, online automation complete is achieved, transition is smooth, and the reliability is high.

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