实际输气管温降特点Actual characteristics of gas pipeline temperature drop：

A、沿程温降速度较输油管快The temperature drop speed along the pipeline is faster

B、下游管道温度低于环境温度The downstream pipeline temperature is lower than the ambient temperature

C、沿程温降速度较输油管慢The temperature drop along the pipeline is slower than that along the pipeline

D、下游管道温度高于环境温度The downstream pipeline temperature is higher than the ambient temperature

查看答案

如搜索结果不匹配，请联系老师获取答案

您可能会需要：

重置密码查看订单联系客服

安装上学吧APP，拍照搜题省时又省心！

更多“实际输气管温降特点Actual characteristic…”相关的问题

第1题

输气管中生成水合物的真实情况The real situation of hydrate formation in gas pipeline：（）

A、气体在管内高速度流动，不可能在某一点生成水合物，而往往在数十米的管段上形成水合物。The gas flows in the tube at a high speed, so it is impossible to form hydrate at a certain point.

B、形成水合物会改变压降曲线形状。Hydrate formation changes the shape of the pressure drop curve.

C、生成水合物时伴随有热效应，要放出热量。熔解水合物时，要吸收热量。水合物的熔解热为335KJ/kg，对管线温降曲线有影响。The formation of hydrate is accompanied by a thermal effect, to release heat. When you melt hydrate, you absorb heat. The melting heat of hydrate is 335KJ/kg, which affects the temperature drop curve of pipeline.

D、此外，还有不少难以考虑周全的因素，如：局部阻力、气流漩涡、结晶中心等，因而有些书上只标明水合物的可能形成区。In addition, there are many difficult to consider factors, such as: local resistance, airflow vortex, crystallization center, and so on, so some books only indicate the possible formation area of hydrate.

点击查看答案

第2题

简要说明输气管的温降曲线与热油管温降曲线的区别。

点击查看答案

第3题

气体增压后温度升高，冷却降温后增加输气能力After gas pressurization, the temperature increases, and after cooling, the gas transmission capacity increases

点击查看答案

第4题

平均温度的定义：输气管温降曲线与x轴所包的面积等于平均温度线与x轴所包的矩形面积。Definition of average temperature: the area covered by the temperature drop curve and the X-axis is equal to the rectangular area covered by the average temper

点击查看答案

第5题

干线输气管的最低温度可能接近0℃，而相应的水合物形成压力范围在1.0~1.5MPa，但输气管上最优输送压力在5.0~7.0MPa，使用降压的方法是无效的。The lowest temperature of the main pipeline may be close to 0℃, and the corresponding hydrate formation pressure range is 1

点击查看答案

第6题

[图]A、升温升压B、升温降压C、降温降压D、降温升压...

图片.png