What is the unit of gas meter measurement? |mass flowmeter

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1. Translate the experimental principle of the plate hole flowmeter into English

Orifice Meter is also known as differential pressure flowmeter is determined by a test piece (cutting pieces) and the second device (differential pressure transmitter and flow indicator), is widely used in gas, steam and liquid flow measurements. It has the characteristics of simple structure, easy maintenance, stable performance, and reliable use. Has a simple structure, easy maintenance, stable performance, reliable and so on. Detailed introduction:

1. Overview Orifice flowmeter, also known as differential pressure flowmeter, is composed of a primary detection element (throttling element) and a secondary device (differential pressure transmitter and flow display instrument), widely used for flow measurement of gases, vapors, and liquids. Details: First, an overview of orifice flow meter is also known as differential pressure flowmeter is determined by a test piece (cutting pieces) and the second device (differential pressure transmitter and flow indicator), is widely used in gas , steam and liquid flow measurement. It has the characteristics of simple structure, easy maintenance, stable performance, and reliable use. Has a simple structure, easy maintenance, stable performance, reliable and so on. The orifice plate throttling device is a standard throttling component that can be produced directly in accordance with national standards without calibration. 1. National standard GB2624-81ard GJ516-87-HK06. Standard orifice plate throttle device is no need to cut expenditure items can be calibrated directly in accordance with national standards of production, 1. The national standard GB2624-81

2. Working principle: The fluid filled in the pipeline flows through the throttling device inside the pipeline, causing local contraction near the throttling element, increasing the flow velocity, and creating a static pressure difference on both sides upstream and downstream. 2, the working principle of fluid flowing through the pipeline is full of pipes inside the throttle device, in the vicinity of cutting pieces of partial contraction caused by a flow rate of increase in its upstream and downstream sides of static pressure difference. Under the condition of known parameters, the relationship between differential pressure and flow rate can be derived based on the principle of flow continuity and Bernoulli equation to obtain the flow rate. Known under the conditions of the relevant parameters, according to a continuous flow principle and Bernoulli"s equation can be deduced travel between pressure and flow relationships obtained flow. Measurement principle: The fluid flowing through the pipeline passes through the throttling element, and the flow bundle is locally contracted at the throttling point, resulting in an increase in flow velocity and a decrease in static pressure. As a result, a static pressure difference is generated before and after th

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