搅拌器挡板强度计算



依据：/		搅拌器挡板强度计算 Baffle plate of mixer calculation
	名称	单位	公式/来源	值
1	示意图
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12	输入
13	搅拌器功率，P The agitator power	KW		11
14	搅拌器转速，N Rotate Speed of agitator	r/min		85
15	罐体内径，D Inside Diameter of shell	mm		1800
16	挡板数量，nb Baffle plate NO.	/		4
17	挡板固定点数，ns NO. of support for one baffle	/		3
18	挡板宽度，BW Width of baffle	mm		160
19	挡板厚度，T1 The thickness of baffle	mm		8
20	挡板支撑板宽度，W Width of baffle support	mm		80
21	挡板支撑板厚度，T2 Thickness of baffle support	mm		8
22	厚度附加量，C Thickness tolerance plus CA	mm		0
23	挡板至罐壁距离，BC Distance of baffle to shell	mm		50
24	挡板支撑点最大距离，BS Support distance	mm		1200
25	设计温度下许用应力，[σ] Allo. stress at design temp.	MPa		113
26	安全系数，α Safe factor	/		2
27	过程
28	搅拌力矩 Stirring moment	kgf.mm	T=973760P/N=	126016
29	对挡板推力 The force to baffle	kgf	Fb=T/nb(D/2-BW/2-BC)=	40.91428571
30	最大弯矩 Max. moment of baffle	kgf.mm	Mmax=FbBS/8(ns-1)=	3068.571429
31	挡板需要厚度 Required thickness of baffle	mm	t1=√(6Mmaxα/(10BW[σ]))=	0.451293968
32	筋板需要厚度 Required thickness of rib	mm	t2=6Mmaxα/(10W2[σ]))=	0.005091656
33	挡板有效厚度 Effective thickness of baffle	mm	Tb=T1-C=	8
34	筋板有效厚度 Effective thickness of ribs	mm	Tr=T2-C=	8
35	结果
36	挡板厚度校核 Baffle Evaluate	/	t1<=Tb	OK
37	筋板厚度校核 Rib Evaluate	/	t2<=Tr	OK