Inbuilt fume hood scrubber

Drizgas Tech Inbuilt Fume Hood scrubber is used to filter out acids and prevent them from being released into the environment. The scrubber is built-in as an integral part of the Hood. Fume Hoods protect users from toxic fumes released by acids, hazardous gas and organic solvents which regular steel hoods might not withstand.

Inbuilt fume hood scrubbers has been specifically designed to stay inside laboratory fume hoods. Contaminated air enters through two inlet ports from the bottom side of the Fume hood Scrubber and passes vertically upwards through a packed bed.

The scrubbing liquid is uniformly introduced above the packings and flows down through packed bed. The air and the scrubbing liquid pass in a counter-current flow for efficient gas/liquid contact.

The scrubbing of gases occurs within the scope of the fume hood scrubber before the gas is exhausted into the ductwork and shields valuable building ventilation systems.

Its upper mist eliminator prevents mist from reaching the exhaust fan then it passes through the reducer and clean gas exits the system.

Technical Specifications

MODEL

DHS – 60

 

Air Handling volume

1000  CMH

 

Removal method

Gas absorption

 

Gas-liquid flow

Vertical counter current flow

 

Material of construction

8 mm Polypropylene

 

Scrubber  Recirculation         tank

      Rectangular tank

 

      Tank  Dimension : 570  mm (L) X 575 mm (W) X 450 mm (H) (Approx.)

 

       Tank working volume: 150 Litres

 

Pressure drop

      65 mm Water Column

 

Mist Eliminator

      150 mm thick PVC Vane

 
 

Scrubber column

      Rectangular Packed bed column

 

      1776 mm (L) X 608 mm (W) X 500 (H) mm Height

 

      Packing volume:  11 Cubic feet

 

Accessories

      Water inlet port and outlet port

 

      Caustic dosing port

 

      Drain  valve

 

      Overflow port

 

      Inspection view port with acrylic glass

 

Scrubbing circulation line

   CPVC

 

Packing material

      Size: 38 mm

 

      Surface area: 128 m2/m3

 

      Void space: 90 %

 

Flooding

      65 %

 

Tower Internals

      Supporting plate for packing material

 

Scrubber inlet port

      300 mm Diameter

 
 

Scrubber outlet port

      250 mm X 250 mm

 

Scrubbing Liquid

      5 % Caustic solution

 

Efficiency

      Above 99 %

 

Recirculation pump 

1 Nos.

 

Type

      Centrifugal

 

      Horizontal mounted

 

Make

Iwaki

 

Model

MD40RLXT Water pump (Japanese Motor)

 

MOC

 Glass Fiber  Reinforced  Polypropylene

 

Discharge capacity

75 LPM

 

Pressure

4 metres of head

 

Connections

1 inch

 

Motor

      1/12 HP, 120 V /50 Hz /Single  Phase

 

      3200 rpm

 

      1.9 Amps

 

Recirculation pump 

 1 Nos.

 

Type

      Centrifugal

      Horizontal mounted

 

 

Make

Iwaki

 

Model

MD40RLXT Water pump (Japanese Motor)

 

MOC

 Glass Fiber  Reinforced  Polypropylene

 

Discharge capacity

75 LPM

 

Pressure

4 metres of head

 

Connections

1 inch

 

Motor

      1/12 HP, 120 V /50 Hz /Single  Phase

      3200 rpm

      1.9 Amps

 

Standard available fume hood sizes 

Dimensions

 
 

Model No.

CFM                         @29″

CFM                   @18″

Super structure

Worktop

Hood opening

 

W (mm)

H (mm)

D (mm)

W (mm)

H (mm)

D (mm)

W (mm)

H (mm)

 

 DGFH-90

567

354

915

1425

845

915

40

762

660

740

 

 DGFH-120

833

521

1220

1425

845

1220

40

762

965

740

 

 DGFH-150

1100

688

1525

1425

845

1525

40

762

1270

740

 

 DGFH-180

1367

854

1830

1425

845

1830

40

762

1575

740

 

 DGFH-240

1900

1188

2440

1425

845

2440

40

762

2185

740

 

 

Features

  • Scrubbing liquid recirculation system
  • Scrubbing liquid make up system
  • Dosing of chemical for pH adjustment
  • Compact size
  • Easy access for maintenance and repairs