1. anti-corrosive environment;
2. The anti-corrosive material;
3. Use material:PN< or =1.6Mpa:shell Material 20R;
4. ASME "u"
Heat exchanger tube bundle
It is composed of diversion ring, tube bundle and rod baffle. The rod baffles are insert among tube bundles in the horizontal and vertical direction, the rod baffles are fixed in supporting ring to form squares( attached drawing)
Rod baffle heat exchanger’s schematics
1,cooling water
1. Outer covering pattern and code number:
Conduction current tube pattern | Code | The box shell cover pattern | Code No | Shell pattern | Code No | Back end structure pattern | Code No |
Outside conduction current tube | W | channel | A | Single pass shell | E | Lopper Floating head | S |
In conduction current tube(unstandared) | N | Seal head channel | B | Double pass shell | F | Extractable floating head | T |
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| U Type shell | I | U type tube | U |
2. Tube support types and models:
Deflection plate type | Code No | The other type | Code No |
Single bow type plate(unstandard) | 1 | Rod baffle | 5 |
Double bow plate | 2 | helical baffle | 6 |
Multi bow type plate | 3 | axial flow double shell type | 7 |
Hollow ring | 4 | Plug flow of Double rotating column | 8 |
3. Heat exchange tube type:
type | No | type | No | Type | No |
φ25smooth tube | 25 | φ25 corrugated pipe | 25b | φ25 spirally grooved tube | 25L |
φ19smooth tube | 19 | φ19 corrugated pipe | 19b | φ19 spirally grooved tube | 19L |
type | No | type | No | type | No |
φ25 Screw tube | 25W | φ25 T tube | 25T | φ25 convergent-divergent tube | 25F |
φ19 Screw tube | 19W | φ19 T tube | 19T | φ19 convergent-divergent tube | 19F |
4. Material pattern andcode number :
Type | No | Type | No |
Tube material 09Cr2AlMoRE | REa | Channel box 07Cr2AlMoRE | REc |
Shell side barrel,outside head cover 07Cr2AlMoRE | REb | Floating head cover 07Cr2AlMoRE | REd |
Type | No | Type | No |
Whole carbon steel | No standard | stainless steel of tube | S+ material No |
stainless steel of channel box | X+ material No | stainless steel of shell side outside head | a+ material No |