The Endress+Hauser Group

Trung tâm truyền thông

Sự kiện

Xây dựng sự nghiệp cùng Endress+Hauser

Tra cứu sản phẩm

Thông tin liên hệ

Vortex flowmeters: Measurement of steam

Vortex flowmeters

Vortex flow measurement: Robust and universally applicable for liquids, gases and steam

Vortex flowmeters are used in numerous branches of industry to measure the volume flow of liquids, gases and steam. Applications in the chemicals and petrochemicals industries, for example, in power generation and heat-supply systems involve widely differing fluids: saturated steam, superheated steam, compressed air, nitrogen, liquefied gases, flue gases, carbon dioxide, fully demineralized water, solvents, heat-transfer oils, boiler feedwater, condensate, etc.

Vortex flowmeters

Our product finder helps you to search for suitable measuring devices, software or system components via product characteristics. Applicator leads you through an individual product selection via application parameters.

Vortex flowmeters are also in widespread use for measuring mass flow. Therefore, modern vortex meters such as the multivariable Prowirl 200 are built for more than merely measuring volume flow, and come complete with temperature sensor and flow computer.

Unique Prowirl 200

Prowirl 200 is the world’s first vortex meter with the option of monitoring the steam quality and immediately generating an alarm message in case of wet steam. Prowirl 200 can also be used for flow monitoring systems up to SIL 2 and SIL 3 and is independently evaluated and certified by the TÜV in accordance with IEC 61508.

  • The Vortex Flow Measuring Principle

  • Steam Quality Measurement with Prowirl F 200 - For Maximum Operational Safety, Energy and Cost Efficiency

  • This film shows that Prowirl 200 is the most robust vortex flowmeter worldwide even under extreme process conditions.

  • Detection of wet steam Measurement of the dryness fraction of steam.

Vortex flow measuring principle

This measuring principle is based on the fact that turbulence forms downstream of obstacles in the flow, such as a bridge pier.

Inside each vortex flowmeter, a bluff body is therefore located in the middle of the pipe. As soon as the flow velocity reaches a certain value, vortices form behind this bluff body, are detached from the flow and transported downstream. The frequency of vortex shedding is directly proportional to mean flow velocity and thus to volume flow.

The detached vortices on both sides of the bluff body generate alternately a local positive or negative pressure that is detected by the capacitive sensor and fed to the electronics as a primary digital, linear signal.

Lợi ích

  • Universally suitable for measuring liquids, gases and steam

  • Largely unaffected by changes in pressure, density, temperature and viscosity

  • High long-term stability: no zero-point drift and lifetime K-factor

  • Large turndown of typically 10:1 to 30:1 for gas/steam, or up to 40:1 for liquids

  • Wide temperature range: –200 to +400 °C (+450 °C on demand)

Liên hệ

Endress+Hauser Instruments International AG/ Asia Pacific Support Center
Unit 3, 1st Floor, CentrePoint Building 106 Nguyen Van Troi Street Phu Nhuan District Ho Chi Minh City Việt Nam
Điện thoại: +84 28 3842 0026
Gửi email

Trang web này sử dụng cookie. Để tiếp tục duyệt trang web, bạn sẽ đồng ý các điều khoản sử dụng cookie. Tìm hiểu thêm tại đây đóng lại

Vui lòng lựa chọn quốc gia / khu vực của bạn