Vortex flowmeter structure and principle

Contents

The utility model discloses a vortex flowmeter structure, belonging to the field of flowmeter equipment.

Background of the Invention

The vortex flowmeter is developed and produced based on the Karman vortex principle. It is mainly used for flow measurement of industrial pipeline medium fluids, such as gas, liquid, steam and other media. It is characterized by small pressure loss, large range, high accuracy, and is almost unaffected by fluid density, pressure, temperature, viscosity and other parameters when measuring working volume flow. There are no movable mechanical parts, so it has high reliability and low maintenance. The instrument parameters can be stable for a long time. The vortex flowmeter uses a piezoelectric stress sensor with high reliability and can work in the operating temperature range of -20℃ to +250℃. There are analog standard signals and digital pulse signal outputs, which are easy to use with digital systems such as computers. It is a relatively advanced and ideal measuring instrument.

The installation process of the vortex flowmeter in the prior art is complicated and difficult to promote.

Summary of the invention

In view of the deficiencies in the prior art, the utility model aims to provide a vortex flowmeter structure to solve the problems raised in the above-mentioned background technology. The utility model is easy to use, easy to operate, good in stability and high in reliability.

In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a vortex flowmeter structure, including a main body and a vortex flowmeter, a water inlet is arranged on the left side of the main body, a water outlet is arranged on the right side of the main body, a filter element is arranged between the water inlet and the water outlet, upper connecting rings are arranged on the left and right ends of the main body, an upper connecting hole is opened in the upper connecting ring, an inner connecting ring is arranged on the outer side of the upper connecting ring, an inner connecting hole is opened in the inner connecting ring, a fixing bolt is placed in the inner connecting hole, a layer of elastic gasket is attached to the inner surface of the inner connecting ring, the vortex flowmeter is installed on the right side of the main body, the vortex flowmeter is composed of a flow sensor and a vortex generator, the vortex generator is installed on the left side of the flow sensor, and an instrument panel is connected above the vortex sensor.

Furthermore, activated carbon and PP cotton are arranged in the filter element. Two upper connecting rings are provided, and the two upper connecting rings are wrapped around the left and right ends of the main body. The upper connecting ring is provided with a plurality of upper connecting holes, and the upper connecting holes are evenly arranged on the upper connecting ring. The inner connecting ring is connected to the left and right ends of the main body in a ring-shaped manner, and a plurality of inner connecting holes are provided, and the plurality of inner connecting holes are evenly arranged on the inner connecting ring. The elastic gasket is made of natural waterproof rubber.

Beneficial effects of the utility model: A vortex flowmeter structure of the utility model, when installed, is achieved by placing the pipe to be connected in the inner fixing ring, then passing the inner connecting hole through the fixing bolt, squeezing the elastic gasket, thereby fixing the pipe, and then passing the upper connecting hole and the corresponding connecting hole on the pipe through the fixing bolt, thereby completely fixing the pipe. This design is firmly fixed, and by setting a filter element, impurities can be effectively filtered to prevent impurities in the water from affecting the measurement results. The utility model is cleverly designed, improves market competitiveness, and achieves the purpose of simple structure and reasonable design.