The vortex street saturated steam flowmeter is based on the Kalman vortex street principle, mainly manifested by setting non streamlined vortex generators (resistance fluid) in the flowing fluid, and alternately generating two columns of regular vortices from both sides of the vortex generators. Widely applicable to the measurement and control of superheated steam, saturated steam, compressed air, and general gases and liquids in industries such as petroleum, chemical, metallurgical, thermal, textile, and papermaking.

Due to the structural and material limitations of the vortex flowmeter itself, in order to reduce the possibility of leakage caused by thermal shrinkage and other reasons, the main body is generally equipped with a flange instead of a threaded joint. To avoid the influence of cold and heat, an extension tube is used to install the preamplifier part of the flowmeter. However, sometimes heat sinks can also be installed according to the situation. The body, triangular pillar, and flange need to use low-temperature material SUS316. The flow measurement range usually requires the diameter of the flowmeter to be consistent with the diameter of ordinary piping. However, piping is often designed based on future plans. When the diameter of the piping is large or the usage increases, there may be a decrease in measurement accuracy, or even inability to measure. In this case, it is necessary to select according to the measurement rangevortex flow meterAnd install rectifiers before and after to ensure consistent caliber. Generally speaking, you can choose according to the following points.

The general characteristics of a vortex flowmeter used for flow measurement of extremely low-temperature fluids are as follows:

1. Large range of measurement.

2. The pressure loss is relatively small. Even for extremely low-temperature fluids, their evaporation rate is low and can be measured with high precision.

3. Easy installation of pressure pipes.

4. Due to the ability to output pulses, it is easy to accumulate calculations.

5. Due to the detection of flow rate, the relationship between flow rate and output is linear.

We can divide media into gaseous, liquid, and solid states, as well as low-temperature, high-temperature, and room temperature. However, for low-temperature media, they generally exist in two states: liquid and gas. Almost all measurement problems for low-temperature media occur in the process of fluid flow measurement. Therefore, here we mainly explain the flow measurement of extremely low-temperature liquids. Due to its various characteristics, the vortex flowmeter can perform satisfactory measurements for extremely low-temperature fluids within the range of physical property values defined by the above standards if there are no abnormal changes in physical property values during measurement.