Design and calculation points of the hottest throt

Key points of throttling device design and calculation

as we all know, the throttling device represented by orifice flowmeter is actually a part of production, and the most important thing is to calculate the diameter of the throttling device and indirectly obtain relevant values such as outflow coefficient. Today, I will introduce the key points of throttling device design and calculation:

1. First of all, fill in the throttling device design and calculation task book

here, it should be pointed out that due to the fact that this kind of simulation slate is made of 100% recycled materials on site, some items can only know the relevant parameters (the actual value of flow, pressure, temperature fluctuation and pipe inner diameter) after they are put into use, so, The discrepancy between the actual value and the actual value of the project after the investment and development of the new generation of functional beauty solutions is not an individual case, which is also an important reason why the throttling device can not operate normally. Therefore, it is necessary to take a rigorous attitude when determining and filling in the project of the design and calculation assignment. After the device is put into use, the design value should be checked again. If the deviation is indeed large, remedial measures should be taken to eliminate the measurement error

2, determination of physical parameters of the measured fluid

the measured parameters mainly include density, viscosity, isentropic index, gas compressibility and gas relative humidity. Among all parameters, the accuracy of density is the most important and the highest requirement. It is a parameter that directly affects the accuracy of measurement

3, determination of the inner diameter of the pipeline and the condition of the inner surface of the pipeline

according to the standard, the inner diameter of the pipeline should be the measured value, and the specific measurement specification can refer to the throttling device design manual. Therefore, after the on-site pipeline is used for a period of time, the condition of the inner surface of the pipeline should be checked, and the problems should be remedied

4, selection of upper limit value of differential pressure

selection of upper limit value of differential pressure plays an important role in design and calculation. Selecting a high differential pressure can improve the measurement accuracy and reduce the standard value of front and rear straight pipe sections

for production-oriented enterprises, the design and calculation of throttling device is a very important link, because production should all rely on the above data. Secondly, the on-site maintenance should also refer to the relevant calculation results to maintain the on-site process in the 1980s. (end)