Vortex flow meter scale application in the alumina production steam measurement analysis

Abstract: the scale vortex flowmeter in alumina production, the application of steam measurement analysis information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Pick to: the measuring principle of vortex flowmeters, notable matters of selection and installation requirements, analysis of vortex flowmeters in the alumina production in the process of using steam metering common problems and corresponding countermeasures. Bayer process of alumina production process, the steam is transported alumina enterprise. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a scale vortex flowmeter in alumina production, the application of steam measurement analysis for details. Pick to: the measuring principle of vortex flowmeters, notable matters of selection and installation requirements, analysis of vortex flowmeters in the alumina production in the process of using steam metering common problems and corresponding countermeasures. Bayer process of alumina production process, the steam is an important energy in alumina enterprise operation, is used to heat the caustic soda solution and bauxite ore, and also used in heating concentration after the decomposition of mother liquor. According to statistics, steam consumption accounts for 40% ~ 60% of alumina energy costs. For the alumina enterprises, the steam consumption has become an important part of enterprise cost, in the development and survival of alumina enterprises play a decisive factor. 1 steam consumption in alumina production distribution, and the current status in bayer process alumina production, the technology of comprehensive energy consumption is mainly composed of steam, electricity, water, compressed air and fuel, in which steam is one of the main energy consumption indexes of alumina production, steam directly reflect the enterprise's production management and the ability to control the production. In an alumina, for example, comprehensive energy consumption of technology about 15. 72GJ/t- Al2O3, steam accounted for about 42%, with steam consists of two parts, high pressure steam and low-pressure steam. Table 1 for a high and low pressure steam consumption of alumina enterprise. In table 1, for example, the alumina enterprises steam need measuring points in 8 ~ 10, YongQiLiang from 3. 5 ~ 206 t/h, the temperature and pressure are also different. At present, the steam flowmeter in alumina enterprises usually adopt two kinds, one kind is based on the principle of 'hard equation, such as differential pressure orifice, sonic nozzle, pig, delta, balance type, etc. , in this kind of instrument, and with differential pressure orifice, pig, delta, accounting for more; Another kind is based on the principle of linear continuous equation, such as vortex flowmeter and mass flowmeter, due to the mass flowmeter is expensive, and the accuracy loss under high temperature, so much is given priority to with vortex flowmeter measurement. Steam measurement instrument on the basis of the principle of 'hard equation, the equation for flow measurement ( 1) Formula: ( 1) That, on the one hand, because of the equation with medium density of steam & rho; F, therefore, the measurement instrument calibration in alumina enterprises is a very troublesome and often inaccurate, general factory mostly adopts water calibration, the calibration methods of precision, do not represent the accuracy of measurement of steam. On the other hand because of the equation ( 1) There is a gas in the expansion coefficient & tau; For different steam, different pressure, different temperature under the condition of expansion coefficient is different, therefore, the precision of the compressed air is used for all identified also does not represent the accuracy of measurement of steam. 2, the working principle of vortex flowmeter in alumina production of design model selection of steam measurement in table 1, for example, alumina enterprises steam need measuring points in 8 ~ 10 or so, and generally are of superheated steam, a mathematical model for binary function, therefore, the design need to consider the double pressure and temperature compensation. 3. The selection of process parameters to consider in the model selection of the design factors include: flow parameters and pressure parameters, temperature parameters, flow gate diameter. Follow the following principles: (at the same time 1) Zui high pressure cases consider whether zui small flow rate in the range of the size of the work; （ 2) Zui consider whether zui big flow under low pressure conditions beyond the size of the work scope; Zui, moreover, should be considered when high temperature corresponding pulse output expansion coefficient of body width, working condition of temperature flow coefficient under the condition of Kt: including: T for the working condition of temperature; For the standard flow coefficient (K General instrument nameplate on) 。 3. The choice of 2 sizes, model selection of the design consideration to reduce the pressure loss, in the steam metering, have a certain request for flow limit, according to the size of the steam flow meter to select the size, but cannot select flowmeter sizes according to the pipe diameter. Size selection can be steam flowmeter using the look-up table method and calculation verification. Look-up table method is on the product samples, according to the working condition of measurable pressure steam flow range table pick flow path; And then calculate authentication flow velocity, Reynolds number is within a certain range. （ 1) Velocity calculation: steam velocity range is generally 2 m/s ~ 60 m/s, zui high should < 80 m/s. V=4× Q / ( 3600× π × D× D） （ 6) Among them: V for velocity; Q for the volume flow: D for flow meter size.

Nowadays, the adoption of mass flow meter in vortex flow meter manufacturer industry is quite common.

We believe our ability can raise a giant wave of innovation among the field of mass flow meter.

Beijing Sincerity Automatic Equipment Co., Ltd deems mass flow meter as evolutionary rather than revolutionary. We've always had these 'social commerce' marketplaces in some form.