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| No.8549267
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Information Name: | Supply Verabar |
Published: | 2011-09-14 |
Validity: | 30 |
Specifications: | Verabar |
Quantity: | 1.00 |
Price Description: | |
Detailed Product Description: | Details Main technical indicators: 1, power bar performance flow measurement system Accuracy: ± 1% Repeatability: ± 0.1% Applied pressure: 0 ~ 40MPa Temperature: - 180 ℃ ~ + 550 ℃ Measurement limit: depending on the probe intensity measurement limit: the minimum pressure required depends on the measurement Turndown Ratio: greater than 10:1 Suitable diameter: 38mm ~ 9,000 mm tube, the tube Medium: full control, one-way flow, one-way gas, steam and viscosity of less than 10 centipoise liquid The use of the power bar and extensive, it is used extensively for a variety of gases, liquids and steam Gas measurement, the following is a typical application media. Gas / liquid / vapor Gas / cooling water / saturated steam Compressed air / boiler water / superheated steam Gas / demineralized water Hydrocarbon gas / liquid hydrocarbon Hot air / cold liquid Furnace gas / liquid heat About the power bar works When the fluid flow through the probe, in front of its distribution area to produce a high-pressure, high pressure distribution pipeline pressure slightly higher than the static pressure. According to the principle Bernoulli's equation, fluid flow through the probe speed, probe back in the distribution area to produce a low pressure, low pressure distribution pipeline pressure slightly lower than the static pressure. Fluid flow from the probe after the probe produce the rear part of the vacuum, and both sides appear in the probe vortex. Speed ??flow probes were cross-sectional shape, surface roughness conditions and low pressure to take the probe is to determine the location of the hole the key performance factors. Stable and accurate low-voltage signals for both the accuracy and performance speed probe play a decisive role. Pakistan all-speed flow probe power can be accurately detected by the average fluid speed generated by the average differential pressure. Power flow probe in Pakistan are high-speed, low-pressure area has arranged according to certain criteria to take pressure of the multi-hole, so that the average velocity measured accurately as possible. Measurement principle Verabar Verabar is a plug-flow measuring instruments. Insert a power in the pipeline the sensor bar, when the fluid flow through the sensor, meet in front of its flow direction to generate a high voltage distribution, the Department produces a low pressure in the subsequent distribution. Sensors in the high and low pressure areas are arranged according to certain rules more than the average for the three pairs of holes to take pressure, all fluids were measured static pressure and average pressure including velocity pressure and static pressure Pl P2. P1 and P2 were introduced into the differential pressure transmitter, pressure measuring travel △ P = P1-P2, △ P reflects the size of the average velocity of fluid in order to calculate the fluid flow. Power Bart points: 1, the preparatory work put into operation before ① sensor installed correctly: Complete sensor installed in the pipe, and put into operation must be carefully checked, requiring welded firmly in the right direction, and strictly not leak, so proper insertion depth. ② instrument calibration: Supporting the instrument with sensors and smart differential pressure transmitter flow totalizer (there may be pressure transmitter and temperature transmitter) and so on. Must be approved by testing and fine tuning can be put into use. Meter range sensors and measured media to meet the requirements. For example, the measured air flow rate Qmax = 5000m3 / h, calculated by the calculation of the maximum differential pressure generated by the sensor △ Pmax = 0.6Kpa, then the differential pressure transmitter range should be adjusted to 0 ~ 0.6KPa, the corresponding output current signal 4 ~ 20mADC. For general-purpose flow totalizer, flow range should be based on real-time, differential pressure range, medium density, temperature, pressure, flow computing requirements, pre-programmed input totalizer, totalizer can be sure that the correct operation and display traffic. ③ instrument wiring is correct: Sensor and differential pressure transmitter, flow totalizer measurement system composed of the supporting instruments of power lines, instrument input and output signals between the lines, control and alarm line, etc., in all instrument wiring board (also known as terminal board) are clearly marked, and must choose to use is not confirmed, and put into operation before the instrument to repeatedly check the wiring is correct. In order to do preparatory work before put into operation, in addition to carefully read the "manual Verabar", but also should read the "manual differential pressure transmitter," "intelligent flow totalizer manual" and other information, follow instructions guide the work. Are Verabar average rate meter differential pressure areas, they are passed through the fluid flow meter to measure the differential pressure before and after the fluid flow, and therefore the choice of meter should know about ordering a few parameters: 1, the pipe diameter 2, the fluid nature of the 3, the process fluid pressure in the pipeline 4, process pipeline fluid temperature 5, fluid flow 6, process on-site conditions |
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Copyright © GuangDong ICP No. 10089450, Jiang Su Zhongkai Industrial Instrument Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility
You are the 4604 visitor
Copyright © GuangDong ICP No. 10089450, Jiang Su Zhongkai Industrial Instrument Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility