News

Precession Vortex Flowmeter Use - Focus on Microfluidic Control Technology

Precession swirl vortex flowmeter must read

Precession vortex flowmeter is an ideal instrument for gas metering in petroleum, chemical, electric power, metallurgy and other industries. The product integrates flow, temperature, and pressure detection functions, and can automatically compensate for temperature, pressure, and compression factors. Next, we must briefly introduce the knowledge that must be understood when using precessional vortex flowmeters by focusing on instrument selection, pre-qualification, technical installations, post-processing, and internal protection.

1, pay attention to instrument selection
In the case where the precession vortex flowmeter type has been selected, the selection of the external table standard and its accompanying components is of utmost importance. Therefore, two basic principles should be grasped in the selection process: namely: One must ensure the use of precision, and the other must ensure production safety. To do this, it is necessary to perform three selection parameters, namely, the maximum, minimum, and common instantaneous flow rates in the near and far future (primarily for the size criteria of the selected appearance), and the planning pressure of the measured medium.

2, using the former calibration
On the one hand, considering the current on-site examination of such appearances, there are still such difficulties. In addition, if the purpose of the purchase is to prepare such an appearance for comparatively important measurement occasions, and the use of the site does not have the on-line calibration conditions, then in this case, the manufacturer only provides A piece of paper that has passed the factory confirmation confirms that the function of the watch is qualified. It is somewhat premature.

3, do a good job of technical devices
Although the precessional vortex flowmeter does not have many special requirements for the technical installation and operating environment, the appearance of any type of flowmeter has the commonality that it prevents oscillations and high-temperature environments from interfering with the flow state of components (such as compressors). , separators, pressure regulators, size heads and headers, elbow number) and straight and straight inner wall sections of the exterior are lubricated straight to ensure that the measured medium is a clean single-phase fluid.

4, strengthen the late processing
Although the vortex flowmeter has many features of active disposal and micro-power consumption, it still needs to be strengthened after it is put into operation. For example, in order to ensure the accuracy and reliability of the flowmeter for a long time (to prevent accidental shutdown and data loss), the system should be regularly scheduled (every 1 to 2 years), copy the header data (daily or weekly). , Replace media parameters (monthly or quarterly) and check battery status from time to time, view appearance coefficients and seals.

5, pay attention to internal protection
If the cavity and its components need to be regularly viewed or cleaned due to temperament or other causes, then it is necessary to pay special attention to the following: For the same standard vortex flowmeter, the vortex generator, the fluid guide, etc. The central components cannot be exchanged. Otherwise, the external measurement coefficients must be calibrated from the head and the temperature and pressure sensors associated with them must be systematically calibrated.

The above is an introduction to the use of the vortex flowmeter, I hope to be useful to everyone.

PREVIOUS：The Three Keys of Permeating a Vortex FlowmetNEXT：Impact Factor Analysis of Orifice Flowmeters