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Multi-effect distillation system of computer-aided calculation process


Steam, kg / h; no additional effect of steam removed from the second start / 9, a W. A first effect of a lR Shao-l_ heated steam and a league-type prop valve embroidery one thousand one hundred thirty-two Shen Zhu February 1997 - ●. One of the latent heat, k, / kg; one. I-effect secondary steam latent heat of vaporization, kJ / kg; qf ÷ hope they enjoy the drug mass, kJ / h ~ T I, the number of the heating steam temperature, ℃;. I-effective solution for a boiling point, ℃; a raw material liquid specific heat, kJ / kg · ℃; C a specific heat of water, kJ/kg- ℃. A ~ =, calculate mathematical model based on the above diagram, multi-effect distillation system, said the block diagram calculation process shown in Figure 2. Prince Yu 2 TEXTILE XVIII calculate the first diagram of three, several specific issues c '} _ ● J1. Pressure of saturated water vapor form in a certain range (eg 1 ~ 1000kpa down the saturated water vapor form into the computer,[link widoczny dla zalogowanych], based on pressure or temperature, linear interpolation look-up table, obtain the relevant parameters of saturated water vapor. 2. Vapor pressure drop caused by d based on temperature difference between the loss of type '. one station (1) calculate the temperature difference between the effective loss of the type: a normal pressure, the first effective temperature difference between the loss of aqueous NaOH, ℃ according to data [4] P381 Appendix 24, may be the . fitted a quadratic function of the concentration of the first effect. If; 150x: Ten 8.9. +0.555 (2), _-amnesty positive coefficient, and its value, o.o162 plastic ±!!. t. 3) i-r-type effect in a secondary steam temperature, ℃ 3. Heating solution hydrostatic losses caused by the temperature difference calculated by a Tp + △ I (4) where: Tp + △ an evaporation chamber pressure and the hydrostatic pressure P. + △ P in solution (or water) boiling point, ℃} a (5) 'The effective alkali density, according to data [2] P106 July 7 Appendix fitted a linear function of the effective concentration - a 9OO +990. * (6) Ding evaporation chamber pressure solution (or water) boiling point, ℃. . 4. Efficient transport between the steam temperature difference caused by the loss from the second effect, the selection of empirical value, that is, = I'C'5. Overall heat transfer coefficient of the heating chamber. Overall heat transfer coefficient based on the additivity thermal convection heat from the thermal resistance. Wall thermal resistance and heat resistance by adding together the scale are. Empirical values can also be used, data E13, E23 values are given some experience, are available. 6. Heat balance equation - the specific heat rejection heat balance calculation, concentrated heat utilization coefficient of thermal effects into account, such as the type (1-3) and (1-4) below. Calculations proved that this is a good way to simple and practical. A -7. Accuracy requirements can be clearly seen from Figure 2, the evaporation efficiency calculated with a given degree of agreement as good at A; the effective degree of fit between the heat transfer area, Austria can continue to be calculated according to engineering accuracy need to set your own four, one calculated to sell cases of \Yu letter alkali concentration down .7%} completed = 23.7% concentration plus the island. hot steam, pressure,[link widoczny dla zalogowanych], force = 245.18kpa} declared the end of the pressure is only designed to save Yan, 9.61kPa ~ heating high. a 2. 5 Bang, Nathan heater heat transfer coefficient of the K =. 1LI2320, K2 A 1740,3; to 8 § / m · ℃ efficient heat transfer equipment, rain equal to false, namely: the heating steam l1 calculated the amount of steam consumption of the rescue Jalan Tuan Yi-goose E unremitting ,..:. This is information not calculate the ball grasshopper; Rights refined calculation is given first, God save the Mount Carbon Ting} {1 = wife of Ren Chun Ting Fu repair no more than ± 5, calculated according to the principles of equal area of the effect heat transfer area with the arithmetic square reservoir fed by two sailors Wang unauthorized enzyme g: as the data [1] used the experience as Fu; Yan 0.5 ℃, △; a l ℃, 1.5_G, the mushrooms into the set of data and conduct Chong The calculated results are listed in Table I, the trial in Table 1,[link widoczny dla zalogowanych], the computer calculated the heat transfer area A = 45.15m soul and data [1] the results of hand calculation of a 45.14m, almost equal to +. bad one. heat transfer area Hsu Operators DiW1W2WAlA2, A. Education,[link widoczny dla zalogowanych], according to the average heat transfer area _ (kg / h) (kg / h) (kg / h) (k Wong / h) (m) (m) (m) ● A (Am) {for the first time Tong 2079.61692.31641.21476,6-r ● r second cycle 2O81.91694.81642.01473.352.864j. 'cowpea 14_. 2062.61695.01641.01474.244.8745.3O45 the third cycle .2745.15 e \ More articles related to topics：


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