Venturi meter scale principle and installation requirements

Abstract: the venturi meter scale principle and installation requirements of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. The principle of venturi tube flowmeter is when the wind blows over the obstacle, above the blockage of kona port near the air pressure is relatively low, resulting in adsorption and lead to the flow of air. Venturi principle is very simple, it is the air by coarse. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a venturi meter scale principle and installation requirements article details. The principle of venturi tube flowmeter is when the wind blows over the obstacle, above the blockage of kona port near the air pressure is relatively low, resulting in adsorption and lead to the flow of air. The principle of venturi tube is very simple, it is the air flow from coarse to fine, to speed up the gas flow rate, the gas in the export of venturi back form a & other; Vacuum & throughout; Area. When the vacuum area near the artifacts have certain adsorption effect on the artifact. The compressed air from the entrance into A venturi tube, A small number of through the cross section of small nozzle B. Then cross section decreases, the increase of the pressure of compressed air, velocity is bigger. ` is within D adsorption chamber of import to create a vacuum, the surrounding air is drawn into the venturi tube, together with the compressed air flow into the increase the flow velocity of the gas diffusion chamber, quieter after the reduce airflow turbulence. Vacuum generator is the use of negative pressure of a new type of positive pressure air supply, efficient, clean, economic, small vacuum components, making it in a place with compressed air, or in a pneumatic system at the same time need to pressure for negative pressure become very easy and convenient. The vacuum generator is widely used in industrial automation machinery, electronics, packaging, printing, plastics and robot etc. The traditional use of vacuum generator is a suction cup match, for a variety of material adsorption, carrying, especially suitable for the adsorption is fragile, soft, thin, nonferrous, non-metallic materials or spherical object. In this type of application, a common characteristic is the swept volume small, the vacuum degree requirements is not high and the work for intermittent. Limits when installed upstream conditions can not meet the above requirements, recommend a special test, in order to understand the installation conditions influence on flow measurement uncertainty, and ( Or) Installation conditions on the verification to determine flow coefficient Cd, for the first time. This standard is given in p> o. Under the condition of 25, the revision method of calculating mass flow. Upstream large space axis if from a device or a device population plane, see JJG 620 - 2008 [ This section & other; Structure & throughout; The horn throat venturi nozzle ( 1) Cylindrical critical flow venturi nozzle throat] Described within 5 d is no wall, you can think up a device is a big space. In case or for large flow upstream large space, can use multiple J critical flow venturi nozzle. Downstream demand besides should not interfere with critical flow venturi nozzle critical flow, with no other requirements for the export pipeline. Drain pipe can be equipped with the necessary drain hole, to discharge some applications may be gathering in condensed water or other impurities. When measuring the flow, should be no flow through the drain hole. If you need to have a drain hole, they should be set in the upstream of nozzle upstream wall take pressure. 6 d. In the plane of the drain hole at the upstream wall pressure should be greater than the axial distance D, and drain hole should be set in the axial plane is different from the wall take pressure of another axial plane. When measuring, the flow of the upstream and throat for single-phase flow and no condensation, all inner surface must be kept clean to maintain its surface finish. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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