Air Purification System - SMC

EMC-AirPrep-01A-UK

Air Purification System

Do you have any of these problems?

Start-up failure and high product rejection rates

Hopper supply failure

?

Uneven paint distribution

High air leakage and reduced service life of valves and actuators

W

Lowering of cylinder output force

Pressure control failure Large pressure drops, high filter replacement rates and large drain outflows on the downstream side

Constantly flowing auto drain

Air Purification System

These kinds of

Problems due to moisture and oil

problems can be the result of a variety of factors.

Malfunction of valves and actuators caused by grease washed out

Generating rust

Swelling of rubber seals

drain

drain

drain

drain

drain

Water droplet contamination of air blow

Rusted spool valve

Corroded regulator

Water droplets

Problem with rust and debris in pipes

Stuck auto-drain valve due to Air leakage caused by seal

rust inside the pipes

damage

Solidification of powder

Solidification or adhesion caused by moisture

Churning matter

Malfunction caused by clogged valve

Debris

Weather and season related problems

Over processing due to increased humidity

40 50 60

30

70

20 10

HYGROMETER

80 90

0

%

100

5/1

Effect on

each device

Effect

Moisture

Oil

Carbon

Tarry carbon

Rust

Solenoid valve

? Malfunction by grease washed out

? Stuck valve due to rust ? Swollen rubber valve

? Swollen rubber valve

? Reduced service life

? Reduced service life

? Stuck valve

Air cylinder Rotary actuator

? Malfunction by grease running

? Stuck valve due to rust ? Seized component

? Reduced service life

? Reduced service life

? Poor piston

? Poor piston

rod sealing performance

? Stuck piston rod

rod sealing performance

? Reduced service life

? Reduced service life

Regulator Pneumatic relay

? Performance reduction or failure ? Reduced service life due to rust

? Performance reduction or failure

? Stuck valve

Pneumatic instrumentation ? Reduced service life due to rust

equipment

? Malfunction

? Malfunction

Piping

Rust formed inside a pipe

? Contamination

Air duster

? Contamination

Air motor (Air driver/Air turbine)

? Decreased revolutions ? Decreased revolutions ? Reduced service life due to rust or failure

? Failure by seized component

Air blow

Water droplets generated

? Contamination

Air spray (painting)

? Paint failure

Powder transfer

? Powder adheres to damp wall surface. ? Contaminated powder ? Solidified powder

? Contaminated powder

Air micrometer

? Instrumentation error or failure

Churning (Related to cement/food)

? Contamination, churning failure

1

Air Purification System

Problems with compressed air

Compressed air is made by compressing ambient air. During in this process, substances are taken in with the ambient air, and additionally other substances are added during the compression and delivery of the air.

Ambient air

Air compressor

Piping

Debris Moisture

Oil Carbon

Rust

Piping debris

Contaminated compressed air

In fact, this is how much moisture can be included in compressed air.

113

l

=

0.75

l

x

150 Approx.

wine bottles

Compressor output: 75 kW, Air at 30?C and a relative humidity of 80% is compressed to 0.7 MPa for 8 hours.

Significance of a dryer

Compressed air includes foreign objects such as moisture (water vapour, water droplets), oil and debris. Water droplets, oil and debris can be removed by using air filters, mist separators, etc., but it is necessary to eliminate moisture by using a dryer.

Air impurities

(Moisture) (Debris)

After cooler

Refrigerated

Main line air dryer

filter

Air filter

Micro mist separator

Air compressor

Air tank

Mist

Odour removal filter

separator (Deodorisation)

Compressed air not including impurities

Compressed air impurities

Moisture

Dust particles exceeding 3 ?m

(Solid contents)

Dust particles less than 3 ?m

(Solid contents)

Odours

2

Air Purification System

SMC

SMC Air Purification System Flow

Product name Model Air flow rate l/min (A

Max. inlet air tempera

Note 1) When the oil mist concentration (compressor discharge concentration) on the inlet side is approx. 30 mg/m3 (ANR) or less. Note 2) Refers to the compressed air quality based on ISO8573-1:2001 (Refer to page 6), as well as the best quality grade achieved by each system.

Inlet air quality will affect the air quality class. Note 3) Air quality class I, I, I is also available through special order. Please contact SMC for further details.

System

Application example

Nominal filtration degree

(95% filtered

particle size)

Impurity in compressed air

(Note1)

(Note 2)

Moisture

Dew point

Water contents

Oil mist concentration

Cleanliness

Oil odour

Air quality

class

Water droplets removed air

Atmospheric pressure dew

7 g/m3

A

? Air blowing (Simple removal of particles)

point?: 6?C

(ANR)

0.7 MPa (At 0.7 MPa

? General pneumatic tool

Dry air

pressure dew

3 ?m point: 40?C

25?C)

--

3, ?, ?

? Used for the same as "A"

B

and when there is a large

3, 4, ? 3, 5, ?

temperature drop in the middle of a pipe.

Dry air

-- Max.

3, 6, ?

C

? General pneumatic equipment

? General painting

0.3 ?m Atmospheric

pressure

1 mg/m3 (ANR)

? 0.8 ppm

Oil 2, 4, 3 odour 2, 5, 3

2, 6, 3

Dry & Clean air

? High grade painting ? Sequence control

D ? Measurement device ? Instrumentation

? Drying and cleaning (Precision parts) ? Machine tools (Pneumatic bearings)

dew point: ?15 to ?23?C

? 0.7 MPa pressure

1.7 g/m3 (ANR)

to 0.8 g/m3 (ANR)

Max. 0.1 mg/m3

(ANR) ?

0.08 ppm

1, 4, 2 1, 5, 2 1, 6, 2

Dry & Clean air

? When a refrigerated air dryer is

dew point: 13 to 3?C

Max. 0.01 mg/m3

E

not provided in sub line. ? Integrated into the equipment

(Machine tools, 3D measurement

device, etc)

Deodorised air

(ANR) ?

0.008 ppm

Max.

35 particles or less

1, 4, 1 1, 5, 1 1, 6, 1

? Stirring, transporting,

F

drying and packaging

0.01 ?m

? Food industry (Except for

direct blowing to foods)

0.004 mg/m3 (ANR) ?

0.0032 ppm

of 0.3 ?m diameter or larger /10 l (ANR)

No oil odour

Low dew point clean air

Max.

? Drying electric and electronic parts

G

? Drying a filling tank ? Transporting powders

? Ozone generator

Atmospheric

0.01 mg/m3

pressure

(ANR)

dew point: 0.5 g/m3

?

Oil odour

? Activation device in a low temperature room

Low dew point clean air

(for clean room)

H ? Blowing semiconductor

parts in a clean room

?40 to ?60?C (ANR) 0.008 ppm

(Note 3)

?

to

1, 1, 1

0.7 MPa pressure dew point: ?18 to ?42?C

0.02 g/m3 (ANR)

Max. 0.004 mg/m3

(ANR) ?

Particle with 0.1 ?m diameter or larger

No oil odour

1, 2, 1 1, 3, 1

0.0032 ppm 0 pc/6 l

Nominal filtration d

(95% filtered particle size) (Note1)

Outlet oil mist concentra Outlet cleanliness Atmospheric pressure

[Inlet air pressure at 0.7 M

Reciprocating air compressor

Screw air compressor

3

C Presents its Air Purification Sy

ANR) ature egree

Main line

Air Tank

-

Air-cooled Aftercooler Water-cooled Aftercooler

-

Main Line Filter

AFF

300 to 12,000

Sub line

Refrigerated Air Dryers

IDFA

200 to 4,550

60?C

50?C

3 ?m

ation: Max.

Water Separator

AMG

Mist Separator

AM

300 to 12,000

60?C

Water droplet removal rate:

99 %

0.3 ?m

1 mg/m3 (ANR) [0.8 ppm]

Micro Mist with Pr

AM

200 to

0.01

(0.3 ?m wit

dew point

Pa]

Pulsation attenuation,

Cooling

Accumulation, Cooling

Select Air-cooled Aftercooler Separation, Filtration

Air Tank or

Main Line

Not required when the

Water-cooled Aftercooler Filter

equipment indicated is

supplied with the compressor. In case of reciprocating compressor:

Required because it becomes hot, and

carbon or tar material is generated. In

case of screw compressor: Not required

AFF

Applicable compressor 2.2 kW (3 horsepower) to 75 kW (100 horsepower)

Not required when the equipment indicated is supplied with the compressor.

?23?C Inlet temperature 35?C

Dehumidification Refrigerated Air Dryer

IDFA

Outlet air pressure dew point 3?C (0.7 MPa, at 35?C) Applicable compressor 1.5 kW (2 horsepower) to 37 kW (50 horsepower)

Screw compressor: Air tank is not required because pulsation is small, but it is required for the purpose of accumulation.

4

Waterdrop separation Water Separator

AMG

Separation, Filtration Mist Separator

AM

AM

With 0.3 ?m pre-filter /Integrated AM+AMD

Separation

Micro Mist Separato

AM

AM

AM AM

AM

AM AM

AM

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