Why is a horizontal layout the best for steam pressure tapping

For the gas phase, take the upper part; for the liquid phase, take the lower part. Is steam in the middle of the gas and liquid phases?

I’m not sure; all the steam pressure measurements for the newly installed equipment in the company are taken horizontally. I just don’t understand why they don’t use a 45-degree angle for these measurements

https://bbs.hcbbs.com/forum.php? ... 380589&pid=13498595 The replies here seem pretty reliable; they’re provided for reference!

That’s strange; I tested it yesterday... https://bbs.hcbbs.com/thread-1377860-1-1.html. Take a look at the opinions discussed there.

When measuring steam flow, it should be taken in the upper half of the pipe, within an angle range of 0 degrees to 45 degrees relative to the horizontal centerline of the pipe. Standardize the Central Plains dialect.

A horizontal pressure tapping point together with a condensation tank is used to ensure stable measurements. In principle, when measuring pressure and flow in steam pipelines, the steam must first be condensed into water before it can be sent to the sensor of the transmitter for measurement. For pressure measurement, a condensation coil is typically installed at the outlet of the pressure tapping pipe to cool the steam; whereas for differential pressure flow meters, a condensation tank is placed at the outlet of the throttling device to convert the steam into condensed water, which is then used by the differential pressure transmitter to measure the flow rate. This is done to ensure the stability of the measurement results and to protect the transmitter from damage caused by high-temperature substances. The liquid-contacting membrane of the transmitter transfers heat to its electronic components, and excessive temperatures can accelerate the aging of these electronic components.

45 degrees from horizontal upwards is also acceptable, but a condenser tank must be added