不可拆螺旋板式换热器型式与参数
1.主题内容与适用范围
我国行业标准JB/T4723-92规定了碳素钢和不锈耐酸钢制不可拆螺旋板式换热器的型式公称压力、公称直径、计算换热面积等基本参数。此项标准适用于公称压力大于1.6mpa、公称直径不大于1600mm、公称换热面积不大于 120m2的不可拆螺旋板式换热器。但随着技术的进步,大型化的不可拆螺旋板式换热器已在国民经济中广泛应用,同时可拆螺旋板式换热器也有了很大的发展,这样标准就暴露了一定的局限性。因此本附录只提供一些有益的参考。
2.符号说明
PN—公称压力,mpa
DN—公称直径,mm
FN—公称换热面积,m2;
F —计算换热面积,m2;
b —通道间距,mm;
δ —板厚,mm
H —板宽,mm
V —流速1m/h时的处理量,m3/h
Lt —螺旋通道长度,m;
F —螺旋通道面积,m2;
dn—接管公称直径,mm;
d —中心管直径,mm
3 .型式
不可拆螺旋板式换热器的结构式参看第3章1.3.1
4 .基本参数
4.1公称压力
公称压力系指通道能承受的最大工作压力.
PN:0.6,1.0,1.6MPA
4.2公称直径
碳素钢制:500,600,700,800,900,1000,1200,1400,1600mm;
不锈耐酸钢制:300,400,500,600,700,800,900,1000,1200,1400,1600。
4.3公称换热面积
碳素钢制:6,8,10,15,20,25,30,40,50,60,80,100,1200 m2;
不锈耐酸钢制:1,2,4,6,8,10,15,20,25,30,40,50,60,80,100 m2。
5.不可拆螺旋板式换热器主要参数
5.1碳素钢制的主要参数见表1。
< 表1>
PN MPa |
FN M2 |
DN mm |
b mm |
δ Mm |
H m |
F m2 |
V m3/h |
dn mm |
Lt m |
f m2 |
d mm |
≤1.6 |
6 |
500 |
6 |
4 |
0.4 |
6.29 |
8.28 |
40 |
8.34 |
0.00230 |
200 |
500 |
10 |
0.5 |
5.72 |
17.00 |
80 |
6.18 |
0.00972 |
200 |
|||
600 |
10 |
0.4 |
6.44 |
13.40 |
65 |
8.79 |
0.00372 |
200 |
|||
8 |
500 |
6 |
0.5 |
7.91 |
10.44 |
65 |
8.34 |
0.00290 |
200 |
||
600 |
10 |
0.5 |
8.13 |
17.00 |
80 |
8.79 |
0.00472 |
200 |
|||
700 |
10 |
0.4 |
9.50 |
13.40 |
65 |
12.89 |
0.00372 |
200 |
|||
10 |
600 |
6 |
0.5 |
12.07 |
10.44 |
65 |
12.69 |
0.00290 |
200 |
||
600 |
10 |
0.6 |
9.83 |
20.60 |
80 |
8.79 |
0.00572 |
200 |
|||
15 |
800 |
6 |
0.5 |
17.02 |
10.44 |
65 |
17.83 |
0.00290 |
200 |
||
700 |
10 |
0.5 |
15.32 |
17.00 |
80 |
16.63 |
0.00472 |
200 |
|||
900 |
14 |
0.5 |
14.93 |
23.23 |
100 |
16.28 |
0.00654 |
300 |
|||
20 |
800 |
6 |
0.5 |
22.74 |
10.44 |
65 |
23.75 |
0.00290 |
200 |
||
700 |
10 |
1.0 |
20.91 |
35.00 |
100 |
18.99 |
0.00972 |
300 |
|||
900 |
10 |
0.6 |
22.31 |
20.60 |
80 |
19.72 |
0.00572 |
300 |
|||
800 |
14 |
0.8 |
18.27 |
38.35 |
100 |
12.22 |
0.01065 |
300 |
|||
25 |
800 |
6 |
0.6 |
27.38 |
12.60 |
65 |
23.75 |
0.00350 |
200 |
||
800 |
10 |
0.8 |
23.90 |
27.80 |
100 |
15.71 |
0.00772 |
300 |
|||
800 |
14 |
1.0 |
23.00 |
48.43 |
125 |
12.22 |
0.1365 |
300 |
|||
30 |
700 |
6 |
1.0 |
30.65 |
21.24 |
80 |
15.83 |
0.00590 |
300 |
||
800 |
10 |
1.0 |
30.03 |
35.00 |
100 |
15.71 |
0.00972 |
300 |
|||
800 |
14 |
1.2 |
27.73 |
58.51 |
125 |
12.22 |
0.01625 |
300 |
|||
40 |
1000 |
6 |
0.6 |
43.89 |
12.60 |
65 |
37.95 |
0.00350 |
200 |
||
1200 |
10 |
0.6 |
43.00 |
20.60 |
80 |
37.78 |
0.00350 |
2000 |
|||
1200 |
14 |
0.8 |
44.60 |
38.35 |
100 |
29.59 |
0.00572 |
300 |
|||
1200 |
18 |
1.0 |
43.65 |
61.55 |
150 |
23.36 |
0.01710 |
300 |
|||
50 |
1000 |
10 |
1.0 |
49.24 |
35.00 |
100 |
25.67 |
0.00972 |
300 |
||
1200 |
14 |
1.0 |
56.16 |
48.43 |
125 |
29.59 |
0.0134 |
300 |
|||
1200 |
18 |
1.2 |
52.70 |
74.51 |
150 |
23.36 |
0.02070 |
300 |
|||
60 |
1400 |
10 |
0.6 |
59.36 |
20.60 |
80 |
52.05 |
0.00572 |
300 |
||
1400 |
14 |
0.8 |
63.46 |
38.35 |
100 |
41.95 |
0.00572 |
300 |
|||
1400 |
18 |
1.0 |
62.96 |
61.55 |
150 |
33.52 |
0.01710 |
300 |
|||
80 |
1400 |
10 |
0.8 |
79.83 |
27.80 |
100 |
52.05 |
0.00772 |
300 |
||
1200 |
10 |
1.0 |
72.66 |
35.00 |
100 |
37.78 |
0.00972 |
300 |
|||
1600 |
14 |
0.8 |
81.50 |
38.35 |
100 |
53.81 |
0.01065 |
300 |
|||
1400 |
14 |
1.0 |
79.90 |
48.43 |
125 |
41.95 |
0.01345 |
300 |
|||
1600 |
18 |
1.0 |
85.60 |
61.55 |
150 |
45.40 |
0.01710 |
300 |
|||
100 |
1600 |
10 |
0.8 |
105.20 |
27.80 |
100 |
68.46 |
0.00772 |
300 |
||
1400 |
10 |
1.0 |
100.30 |
35.00 |
100 |
52.05 |
0.00972 |
300 |
|||
1600 |
14 |
1.0 |
102.61 |
48.43 |
125 |
53.8 |
0.01345 |
300 |
|||
1600 |
18 |
1.2 |
103.36 |
74.51 |
150 |
45.40 |
0.02070 |
300 |
|||
120 |
1400 |
10 |
1.2 |
120.77 |
42.20 |
125 |
52.02 |
0.01172 |
300 |
||
1600 |
14 |
1.2 |
123.72 |
50.51 |
125 |
53.81 |
0.01625 |
300 |
5.2不锈耐酸钢制的主要参数见表2。
< 表2>
PN MPa |
FN M2 |
DN mm |
b mm |
δ mm |
H M |
F m2 |
V m3/h |
dn mm |
Lt m |
f m2 |
d mm |
≤1.6 |
1 |
300 |
6 |
2,3 |
0.2 |
1.07 |
3.96 |
40 |
2.95 |
0.00110 |
160 |
2 |
400 |
6 |
0.2 |
2.08 |
3.96 |
40 |
5.71 |
0.00110 |
160 |
||
4 |
400 |
6 |
0.4 |
4.28 |
8.28 |
50 |
5.71 |
0.00230 |
200 |
||
500 |
10 |
0.4 |
4.95 |
13.40 |
65 |
6.78 |
0.00372 |
200 |
|||
6 |
400 |
6 |
0.6 |
5.95 |
12.60 |
65 |
5.22 |
0.00350 |
200 |
||
500 |
10 |
0.5 |
6.28 |
17.00 |
80 |
6.76 |
0.00472 |
200 |
|||
8 |
500 |
6 |
0.4 |
7.19 |
8.28 |
50 |
9.50 |
0.00230 |
200 |
||
500 |
10 |
0.6 |
7.58 |
20.60 |
80 |
6.76 |
0.00572 |
200 |
|||
600 |
10 |
0.5 |
8.69 |
17.00 |
80 |
9.37 |
0.00472 |
200 |
|||
10 |
600 |
6 |
0.4 |
10.50 |
8.28 |
50 |
13.85 |
0.00230 |
200 |
||
600 |
10 |
0.6 |
8.67 |
20.60 |
80 |
7.71 |
0.00572 |
300 |
|||
700 |
14 |
0.6 |
9.33 |
28.27 |
100 |
8.47 |
0.00785 |
300 |
|||
700 |
14 |
0.5 |
7.70 |
23.23 |
100 |
8.47 |
0.00645 |
300 |
|||
15 |
700 |
6 |
0.5 |
18.07 |
10.44 |
65 |
18.92 |
0.00290 |
200 |
||
800 |
10 |
0.5 |
16.97 |
17.00 |
80 |
18.14 |
0.00472 |
200 |
|||
700 |
14 |
0.8 |
14.27 |
38.35 |
100 |
9.55 |
0.01065 |
300 |
|||
20 |
700 |
6 |
0.6 |
21.78 |
12.60 |
65 |
18.92 |
0.00350 |
200 |
||
800 |
10 |
0.6 |
18.57 |
20.60 |
80 |
16.41 |
0.00572 |
300 |
|||
800 |
14 |
0.8 |
19.70 |
38.35 |
100 |
13.14 |
0.01065 |
300 |
|||
25 |
800 |
6 |
0.5 |
24.83 |
10.44 |
65 |
25.92 |
0.00290 |
200 |
||
800 |
10 |
0.8 |
24.97 |
27.80 |
100 |
16.41 |
0.00772 |
300 |
|||
900 |
10 |
0.6 |
24.67 |
20.60 |
80 |
21.74 |
0.00572 |
300 |
|||
900 |
14 |
0.8 |
25.86 |
38.35 |
100 |
17.21 |
0.01065 |
300 |
|||
30 |
700 |
6 |
0.8 |
29.18 |
16.92 |
80 |
18.92 |
0.00470 |
200 |
||
800 |
10 |
1.0 |
31.38 |
35.00 |
100 |
16.41 |
0.00972 |
300 |
|||
1000 |
14 |
0.8 |
32.77 |
38.35 |
100 |
21.76 |
0.01065 |
300 |
|||
40 |
1000 |
10 |
0.8 |
42.39 |
27.80 |
100 |
27.72 |
0.00772 |
300 |
||
1000 |
14 |
1.0 |
41.25 |
48.43 |
125 |
21.76 |
0.01345 |
300 |
|||
50 |
1000 |
10 |
1.0 |
53.26 |
35.00 |
100 |
27.72 |
0.00972 |
300 |
||
1000 |
14 |
1.2 |
49.74 |
58.51 |
150 |
21.76 |
0.01625 |
300 |
|||
60 |
1200 |
10 |
0.8 |
63.89 |
27.80 |
125 |
41.65 |
0.00772 |
300 |
||
1200 |
14 |
1.0 |
57.72 |
48.43 |
100 |
30.41 |
0.01345 |
300 |
|||
80 |
1200 |
10 |
1.0 |
80.27 |
35.00 |
100 |
41.65 |
0.00972 |
300 |
||
1400 |
14 |
1.0 |
81.03 |
48.43 |
125 |
42.55 |
0.01345 |
300 |
|||
100 |
1400 |
10 |
1.0 |
108.02 |
35.00 |
100 |
55.98 |
0.00972 |
300 |
||
1400 |
14 |
1.0 |
97.70 |
58.51 |
150 |
42.55 |
0.01625 |
300 |
|||
1600 |
14 |
1.2 |
108.07 |
48.43 |
125 |
56.62 |
0.01345 |
300 |