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Dehumidification Drying System

Dehumidification Drying System

1.Purification requirements of each section
Dehumidification
area
Area(㎡) Height(m) Volume (㎥) temperature(℃) Dew
point(℃)
People
Dry room 1 60 2.65 159 22±2 ≤-40 3
Dry room 2 100 2.65 265 22±2 ≤-40 3
 
Note: The dry area must be sealed well, no corrosive gas, and no large heating equipment. Personnel need to wear purificatory special protective clothing and set up a buffer room!
 
2. List of dehumidification and temperature control equipment:
2.1 List of regional equipment specifications
No. Equipment name Supply air volume m³/h Unit model Quantity Area used
AHU-1 Low Dew Point Rotary dehumidifier 6800 JD-6800SCH 1set Drying room 1
AHU-2 Low Dew Point Rotary dehumidifier 7900 JD-7900SCH 1set Drying room 2
 
 
3. Air conditioning system selection design calculation table plan:
1. Main equipment selection design calculation table:
No        Area classification Constant temperature and humidity area (positive area)
0 Dehumidifier unit number AHU-1 AHU-2
1 Workshop name Drying room 1 Drying room 2
2 Area m2 60 100
3 Ceiling height m 2.65 2.65
4 Volume m3 159 265
5 Temperature and humidity requirements T=22±2℃  Dew point ≤-40℃
6 Purification level Return air 100,000 purification
7 Personnel (person) 3 3
8 Wet load Ventilation system infiltration wet load g 150 300
9 Person wet load g 207 207
10 Total wet load g/h 357 507
11 heat load kw Thermal load of drying room enclosure w 7500 15000
12 Personnel thermal load w 402 402
13 Total heat load W 7902 15402
14 Design Airflow 6800 7900
15 Device Model JD-6800SCH JD-7900SCH
16 Designed ventilation 36.8 26.4
17 Designed dehumidifying capacity (g/h) 545 635
18 Designed heat removal (W) 14000 16300
19 Supply air temperature and dew point 13℃/-65℃ 13℃/-65℃
20 Air volumeCMH Fresh air volume CMH 1200 1700
Wheel dehumidifying air volume CMH 7200 8800
Regenerative air volume CMH Before 400/after 800 Before 600/after 900
Return air volume CMH 5600 6200
Air supply volumeCMH 6800 7900
21 Dehumidification  Runner Runner brand, material Sweden Proflute/Japan NICHIAS Silicone Wheel
22 Equipment energy consumption KW Regenerative heating power kw before 11/after 22 Before 16/after 24
Regenerative fan power kw Before 0.75/after 0.75 Before 0.75/after 0.75
Processing fan power kw 11 11
Wheel drive motor power kw Before 0.06/after 0.12 Before 0.06/after 0.2
Summer power total kw 46 53
23   Cold load  kw 62.2 84.6
2. Selection and calculation table of matching refrigeration system
No Equipment name Air-cooled module chiller
1 Specification(cooling capacity) 97.5KW
2 Quantity 2 sets
3 Electric power Kw 30.4+3KW(chiller, pump tower)
 
4. Configuration characteristics:
The low-humidity rotary dehumidification unit consists of the primary filtering section, the fresh air surface cooling section, the front surface cooling section, the rotary dehumidification section, the middle fan section, the mixed air section, the rear stage dehumidifier section, the rear surface cooling section, the blower section, and mid-effect filtering section, regeneration system and control part.