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科里奧利流量計

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高準 H 系列衛生型科里奧利流量和密度儀表
H 系列流量計設計緊湊,可排空,可清潔,能提供準確、低頻且無(wú)需人工介入的測量,是衛生過(guò)程控制應用的理想選擇。 在極端條件下獲得可靠的性能,包括夾氣情況。

Coriolis Flow Meter Principles
The basic operation of Coriolis flow meters is based on the principles of motion mechanics. As fluid moves through a vibrating tube it is forced to accelerate as it moves toward the point of peak-amplitude vibration. Conversely, decelerating fluid moves away from the point of peak amplitude as it exits the tube. The result is a twisting reaction of the flow tube during flowing conditions as it traverses each vibration cycle.
 
Importance
A Coriolis meter is based on the principles of motion mechanics. When the process fluid enters the sensor, it is split. During operation, a drive coil stimulates the tubes to oscillate in opposition at the natural resonant frequency. As the tubes oscillate, the voltage generated from each pickoff creates a sine wave. This indicates the motion of one tube relative to the other. The time delay between the two sine waves is called Delta-T, which is directly proportional to the mass flow rate.
 
Range
Coriolis flow meters are extremely important in a multitude of flow-measurement applications. Offering a wide breadth of line sizes, flow measurement accuracy and turndown, these meters support many industries and can measure flow rates from a few grams/hour up to 120,000 lbs/minute. Coriolis meters have a wide, dynamic range due to the linear nature of the signal created while measuring flow.

Applications
Coriolis flow meters are used in a wide range of critical, challenging applications, in industries including oil and gas, water and wastewater, power, chemical, food and beverage, and life sciences.
 
Some common applications for Coriolis flow meters include:
 
• Applications with low to high flow rates
 
• Fiscal custody transfer
 
• Challenging liquid, gas and slurry applications
 
規格
液體精度/可重復性 可達流量的 ±0.1%(流量的 ±0.05%)
氣體精度/可重復性 可達流量的 ±0.5%(流量的 ±0.25%)
密度精度/可重復性 可達 ±0.0005 g/cm3 (±0.0002 g/cm3)
口徑 1/4 (DN6) - 3 (DN80)
壓力范圍 可達 1450 psig (100 barg)
溫度范圍 -100°C 至 204°C(-148°F 至 400°F)
電子(軟件) 包括 mA、頻率、離散、HART 和 Modbus 在內的多種 I/O 選項
量程比 0.834027778

功能
緊湊型設計具有卓越的靈敏性,減少了過(guò)程控制中的可變性
憑借出色的密度測量,確保產(chǎn)品的一致性和品質(zhì)
自排空設計和卓越的溫度穩定性成就了快速的產(chǎn)品轉換
包括高度拋光 316L 不銹鋼(表面可拋光至 15 Ra)在內的選項可供選擇
智能儀表自校驗確保獲得實(shí)時(shí)的過(guò)程中測量完整性
使用緊湊、衛生型不銹鋼變送器外殼,可為配料、裝載和夾氣應用帶來(lái)優(yōu)異的兩相流量功能
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在需要符合 3-A 和 EHEDG 要求的 SIP、CIP 和衛生環(huán)境中使用
 
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