Shock-resistance flow meter

Abstract

The invention discloses a shock-resistance flow meter and belongs to the field of fluid metering. The shock-resistance flow meter comprises a tube body; two ends of the tube body are provided with a water inlet and a water outlet respectively; a protruding opening is formed at the top of the middle of the tube body; a guide plate is disposed inside the tube body; the top end of the guide plate isfixedly connected with a metering box; the middle of the metering box is provided with a flow guiding mechanism; and the bottom of the metering box is provided with a buffering mechanism. According tothe shock-resistance flow meter of the invention, a fluid is guided to the flow guiding mechanism through the guide plate, so that the fluid decelerates and flows into the metering box; hydraulic pressure in the metering box is more stable compared with hydraulic pressure in the tube body; when the hydraulic pressure fluctuates, the buffering mechanism adjusts the pressure of the fluid, a pistonslides down, so that the space of the metering box can be expanded, and therefore, a buffering and pressure reduction effect is achieved; when the pressure drops back, a spring pushes the piston up, so that a pressure stabilizing effect is achieved, and therefore, the protection of a measuring assembly is benefitted, and measurement accuracy is improved; a filter screen filters the fluid before the fluid is metered, so that impurities can be intercepted, and therefore, impact on the probe of the measuring assembly can be decreased, and the wear of the measuring assembly can be reduced.

Description

technical field [0001] The invention relates to the field of fluid metering, more specifically, the invention relates to a shock-resistant flow meter. Background technique [0002] Flow measurement is one of the components of measurement science and technology, and it is closely related to national economy, national defense construction and scientific research. Doing this work well plays an important role in ensuring product quality, improving production efficiency, and promoting the development of science and technology. Especially in today's era of energy crisis and increasing automation of industrial production, flowmeters play an important role in the national economy. position and role are more obvious. [0003] At present, the flowmeter on the market includes a flowmeter body, which is provided with a liquid inlet, a liquid outlet, and a cavity with a convex circular cross section. The cavity is connected, and there is a rotatable impeller in the cavity. There are se...

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Problems solved by technology

[0004] However, the above-mentioned technical solution still has many disadvantages in practical application, such as the fluid velocity is too fast under high-pressure delivery, which has a large impact on the flowmeter probe, and when the floating pressure or water pressure fluctuates too much, the cavity does not have the ability to reduce pressure. pressure capacity, it is easy to damage the flowmeter probe, and the impurity particles in the fluid will also accelerate the wear of the flowmeter probe

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