原来画生物池的时候老瞎画,没有具体去想想细节,比如:好氧池导流墙到底是开口好还是直接做个通顶好,半圆导流墙到底该怎么设计。闲出屁来抠抠细节,发现还挺有点东西。 1 直线导流墙设计[1] 1.1导流墙开洞还是一端断开 A2O生化池O段为推流曝气池池型:水从池的一端进入,从另一端出去,为了使推流曝气池内流体混合均匀,以达到良好的推流效果,常常会考虑在池体中加导流墙,导流墙设置的原则一般为池长与池宽(L/B)之比介于5~l0之间。AO生化池O段导流墙布置一般有以下两种模式:1
1 直线导流墙设计[1]
1.1导流墙开洞还是一端断开
直线导流墙开口布置示意图
1.2结论
2/R**2*x**3-3/R*x**2-x+2*b=0
2.2 偏心距的计算
Import sympyfor b in [5,6,7,8,9,10]: R=b/2 x=sympy.symbols('x') a=sympy.solve([2/b**2*x**3-3/b*x**2-x+2*R],[x]) print(a)
[(-3.09016994374947,), (2.50000000000000,), (8.09016994374947,)][(-3.70820393249937,), (3.00000000000000,), (9.70820393249937,)][(-4.32623792124926,), (3.50000000000000,), (11.3262379212493,)][(-4.94427190999916,), (4.00000000000000,), (12.9442719099992,)][(-5.56230589874905,), (4.50000000000000,), (14.5623058987491,)][(-6.18033988749895,), (5.00000000000000,), (16.1803398874989,)]
Import sympyfor b in [5,6,7,8,9,10]: R=b/2.5 x=sympy.symbols('x') a=sympy.solve([2/b**2*x**3-3/b*x**2-x+2*R],[x]) print(a)
[(-2.8782742976193 + 0.e-22*I,), (2.09791988296182 - 0.e-22*I,), (8.28035441465748 - 0.e-21*I,)][(-3.45392915714316 + 0.e-22*I,), (2.51750385955419 - 0.e-22*I,), (9.93642529758897 + 0.e-20*I,)][(-4.02958401666702 + 0.e-22*I,), (2.93708783614655 - 0.e-22*I,), (11.5924961805205 + 0.e-20*I,)][(-4.60523887619088 + 0.e-22*I,), (3.35667181273892 - 0.e-22*I,), (13.248567063452 + 0.e-22*I,)][(-5.18089373571474 + 0.e-22*I,), (3.77625578933128 + 0.e-19*I,), (14.9046379463835 + 0.e-20*I,)][(-5.7565485952386 + 0.e-22*I,), (4.19583976592365 - 0.e-22*I,), (16.560708829315 - 0.e-21*I,)]
Import sympyFor b in [5,6,7,8,9,10]: R=b/1.5 x=sympy.symbols('x') a=sympy.solve([2/b**2*x**3-3/b*x**2-x+2*R],[x]) print(a)
[(-3.39766653414083 + 0.e-20*I,), (3.17657731998687 + 0.e-20*I,), (7.72108921415395 + 0.e-20*I,)][(-4.07719984096899 + 0.e-20*I,), (3.81189278398425 + 0.e-20*I,), (9.26530705698474 + 0.e-20*I,)][(-4.75673314779716 + 0.e-20*I,), (4.44720824798162 + 0.e-19*I,), (10.8095248998155 + 0.e-20*I,)][(-5.43626645462532 + 0.e-20*I,), (5.082523711979 + 0.e-22*I,), (12.3537427426463 - 0.e-22*I,)][(-6.11579976145349 - 0.e-22*I,), (5.71783917597637 + 0.e-19*I,), (13.8979605854771 + 0.e-20*I,)][(-6.79533306828165 + 0.e-20*I,), (6.35315463997375 - 0.e-22*I,), (15.4421784283079 + 0.e-22*I,)]
2.3 建议
所以尽量让半圆导流墙直径等于一半池宽比较省事。
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知识点:导流墙设计方法