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Is the Anuba flowmeter a brand?
Anuba flowmeter is not a brand, but a type of flowmeter. 1. Product Definition and Principle: The full name of the Annubar flowmeter is the flute shaped averaging tube flowmeter, which is designed based on the pitot tube velocity measurement principle and calculates the flow rate by measuring the average flow velocity of the fluid inside the pipeline. Its core structure is the uniform velocity tube probe inserted into the pipeline, which uses the differential pressure values generated before and after to correlate the flow rate and ultimately achieve the output of flow data. This design makes it suitable for measurement scenarios in large-diameter pipelines or high-temperature and high-pressure media. 2. Brand examples in the market: Currently, Yokogawa Electric ABB、 Siemens and other international brands offer Anuba flow weighing products. For example, Yokogawa Electrics models are known for their high precision and long-term stability, making them suitable for the petroleum and chemical industries; ABBs products focus on digital integration capabilities and support real-time data monitoring; Siemens Annubar flowmeter excels in wear resistance and corrosion resistance design, making it suitable for the power industry. Other manufacturers such as Rosemont Inspection and Emerson also have mature technology, and users can make targeted selections based on the characteristics of the medium, pipeline size, and budget.
2. Installation requirements for Annubar flowmeter
Installation requirements for Annubar flowmeter: Annubar flowmeter, also known as averaging tube flowmeter, is a porous average flow velocity flowmeter designed based on the pitot tube principle.
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1. Installation deviation of sensors Total pressure hole flow deviation: The total pressure hole of the sensor must be facing the flow direction, with a deviation of no more than 7 °.
. This requirement is to ensure that the sensor can accurately capture the mainstream direction of the fluid, thereby providing accurate flow measurement. Insertion depth deviation: The sensor should be inserted along the diameter direction of the pipeline to the bottom, and the deviation should be controlled during installation to ensure that the sensor can be fully inserted into the pipeline to obtain more accurate flow information. Installation position: The length of the straight pipe section: For differential pressure flow measuring instruments, a longer straight pipe section is closely related to measurement accuracy and uncertainty. Usually, on the premise of meeting installation requirements, flow measurement positions are selected on relatively long straight pipe sections. However, in some cases, such as in the air pipeline of a sulfuric acid plant, the length of the straight pipe section is limited. In this case, a relatively long straight pipe section should be selected as much as possible, and the requirements for the length of the straight pipe section in JB/T 5325 "Uniformity Tube Flow Sensor" should be referred to (such as the front 7D and back 3D when the front and rear equal diameter elbows are in the same plane, and the front 9D and back 3D when they are in different planes). Measuring the flow direction of the medium: equipped with anti surge control on the centrifugal fan unit, the measured flow rate is