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CKAS-FLVJ-D Series Vortex Flowmeter


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1. 涡流流量计是一种用途广泛的流量计，用于大多数蒸汽、气体和液体的流量测量和控制。
2. 涡流流量计具有非常独特的介质多样性，其流量系数在不同介质中通用。
3. 涡流流量计最初形成信号，其输出频率与流量呈线性关系，且不存在零点漂移问题。
4. 涡流流量计结构简单，无活动部件，低失效率，稳定性和可靠性高。
5. 由涡流流量计组成的流量测量系统结构简单、维护简便且经济性良好。
6. CKAS-FLV-D系列涡流流量计采用最新信号处理技术，配合高性能微处理器，前端模拟信号处理专用芯片使压电传感器与接口放大器电路高度匹配，实现完美隔离系统。在恶劣的现场环境下检测稳定可靠的真实信号，实现降噪，提升抗干扰能力，实现稳定测量。

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Product Description

Features

working principle

D series vortex flowmeter flow range

Technical Parameters

Product Description

1. The vortex flowmeter is a flow meter with a wide range of uses, which is used for flow measurement and control of most steam, gas and liquid.

2. The vortex flowmeter has a very unique medium versatility, and its meter coefficient is common to different media.

3. The vortex flowmeter originally forms a signal, and its output frequency has a linear relationship with the flow rate, and there is no zero point drift problem.

4. The vortex flowmeter has a simple structure, no moving parts, low failure rate, and high stability and reliability.

5. The flow measurement system composed of vortex flowmeter is simple, easy to maintain, and has good economy.

6. CKAS-FLV-D series vortex flowmeters use the latest signal processing technology, cooperate with high-performance microprocessors, and special chips for front-end analog signal processing can make the piezoelectric sensor and the interface amplifier circuit well matched and the perfect isolation system in the Stable and reliable real signals are detected in harsh on-site environments, so as to achieve noise reduction, improve anti-interference ability, and realize stable measurement.

industry

Widely used in chemical industry, oil and gas, power plant, food and beverage, pharmaceutical, steel and metallurgy, paper industry, water, automobile industry and other related industries.

application

Widely used in the measurement of saturated steam and superheated steam, steam boiler monitoring, steam and hot water heat, industrial gas consumption measurement compressed air system consumption measurement, compressor outlet monitoring, air compressor FAD flow estimation, for food, beverage and pharmaceutical The industry's SIP and CIP processes can be applied to measurements related to SIL2 level safety certification.

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productfeatures

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working principle

The vortex flowmeter is used to measure the gas, steam and liquid in the full pipe state, and the measurement is based on the Karman vortex principle.When the medium flows through the triangular prism at a certain speed, an alternate arrangement of vortex bands is generated behind both sides of the triangular prism, which is called 'Karman vortex'. The pressure pulsation is generated, so that the detection body produces alternating stress, and the piezoelectric element encapsulated in the detection probe body produces an alternation with the same frequency as the vortex under the action of the alternating pressure.

The charge signal is amplified by the pre-amplifier and sent to the intelligent flow calculator for intelligent processing to realize the display of the instantaneous flow and cumulative flow of the fluid and the communication and control of the flow data and the microcomputer system.

Within a certain Reynolds number range (2x10^4~7x10^6), the relationship between the release frequency of the vortex and the fluid velocity V and the width d of the upstream surface of the vortex generator can be expressed by the following formula:

f=Sr·V/d V=fd/Sr

In the formula, f-the release frequency of Karman vortex, Sr-coefficient (called Straw number), V-flow velocity, d-the width of triangular column.The Strouhal number is an important coefficient of the vortex flowmeter.In the straight part of Sr=0.16 of the number of curves, as long as the frequency f is accurately measured, the fluid flow rate V=f d/Sr can be measured, so as to achieve the purpose of measuring the fluid flow in the pipeline;

Namely: Q=3600xf/k..... (1)(K-instrument factor, times/m3)