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Vortex flowmeter common classification method Daquan introduction

The classification problem of the instrument has different ways of dividing from different angles. Some are classified according to structure, some are classified according to detection methods, and some are classified according to usage. Vortex flowmeters are no exception. Below we classify vortex flowmeters from different angles. First, according to the connection method According to the connection method of the vortex flowmeter and the pipeline can be divided into flange connection type and flange clamp type. Both forms of connection have their own advantages. The flange-connected type integrates the meter and the connecting flange for easy installation, but increases the amount of machining for the manufacturer, especially for different pressure levels. It is necessary to cast flanges with different pressure ratings. The flange-mounted vortex flowmeter has no bulky flanges at both ends and is relatively light. Under the premise of ensuring that the sealing surface and mechanical strength meet the requirements, it is sufficient to manufacture only the body that cannot be blue. When the user uses it, it can be connected with flanges of different pressure levels according to different working pressures. Second, according to the detection technology classification according to different detection techniques, the vortex flowmeter can be divided into thermal vortex flowmeter, ultrasonic vortex flowmeter, capacitive vortex flowmeter, stress vortex flowmeter, strain gauge Vortex flowmeters for vortex flowmeters, magneto-electric (vibrating body) vortex flowmeters, photoelectric and fiber-optic vortex flowmeters, and other detection technologies. This classification method is a classification method that manufacturers and users are more accustomed to, and the different characteristics of the vortex flowmeter can be reflected from the name. The fifth chapter of this book will introduce the principles and characteristics of these vortex flowmeters. Second, according to the purpose of use, according to the purpose of use, can also be divided into explosion-proof vortex flowmeter, high temperature vortex flowmeter, very low temperature vortex flowmeter, corrosion-resistant vortex flowmeter, Insert vortex flowmeter and mass vortex flowmeter. 4. Classification according to structural form According to the structural form, the vortex flowmeter can be divided into an integrated type and a remote transmission type. Among them: Integrated vortex flowmeter: integrates the sensor and converter (including flow calculation display unit) into one. The remote transmission type (or separate type) vortex flowmeter refers to the separation of the sensor and the converter of the meter, and is suitable for special working conditions, such as a high temperature type vortex flowmeter. V. Classification by function of the instrument According to the function of the instrument, the vortex flowmeter can be divided into regular type and intelligent type. Among them, the intelligent vortex flowmeter is a new type of flowmeter that has appeared in recent years. Its emergence is the embodiment of the rapid development of sensor technology, digital technology and communication technology. This type of instrument has been integrated in design, and one instrument integrates signal detection, signal processing and compensation calculation, display and communication. In terms of functions, multi-parameter detection is realized; in terms of functions, it has various functions such as measurement, compensation, calculation, self-diagnosis, management and communication. The intelligent vortex flowmeter represents the direction of instrument development.

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