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Types and parameters of non detachable spiral plate heat exchanger


发布时间:

2015-09-11

China's industry standard JB / t4723-92 stipulates that carbon steel and stainless acid resistant steel can not be disassembled spiral plate replacement

1. Subject content and scope of application

China's industry standard JB / t4723-92 stipulates that carbon steel and stainless acid resistant steel can not be disassembled spiral plate replacement

The type, nominal pressure, nominal diameter, calculated heat exchange area and other basic parameters of the heat exchanger. This standard is applicable to the non detachable spiral plate heat exchanger with nominal pressure greater than 1.6Mpa, nominal diameter no more than 1600mm and nominal heat exchange area no more than 120m2. However, with the progress of technology, the large-scale and non detachable spiral plate heat exchanger has been widely used in the national economy. At the same time, the detachable spiral plate heat exchanger also has great development, so the standard has exposed certain limitations. Therefore, this appendix only provides some useful references.

2. Symbol description

PN nominal pressure, MPa

DN - nominal diameter, mm

FN - nominal heat exchange area, m2;

F - calculated heat exchange area, m2;

B-channel spacing, mm;

δ - plate thickness, mm

H-plate width, mm

V-treatment capacity at flow rate of 1m / h, m3 / h

LT - length of spiral channel, m;

F-area of spiral channel, m2;

DN - nominal diameter of nozzle, mm;

D - diameter of central pipe, mm

3. Type

Refer to 1.3.1 in Chapter 3 for structural formula of non detachable spiral plate heat exchanger

4. Basic parameters

4.1 nominal pressure

Nominal pressure refers to the maximum working pressure that the channel can bear

PN:0.6,1.0,1.6MPA

4.2 nominal diameter

Carbon steel: 5006007008009001000120014001600mm;

Stainless acid resistant steel: 3004005006007008009001000120014001600.

4.3 nominal heat exchange area

Carbon steel: 6,8,10,15,20,25,30,40,50,60,801001200 m2;

Stainless acid resistant steel: 1, 2, 4, 6, 8, 10, 15, 20, 25, 30, 40, 50, 60, 80100 m2.


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