Uso de ventiladores en locales con atmósfera potencialmente explosiva

1. category 2 or 3 (G and/ or D)
o
QOnon-sparking design
-,
motor
EEx nA
EEx e
or
EEx de
(for FU)
prevention of the generation of sparks or hot
surfaces by appropriate design
st 10.03.2014 ATEX 16

2. group and category
Group 1comprises equipment intended for use in the
underground parts of mines, and to those parts of
surface instalrations of such mines, likely to become
endangered by firedamp and/or combustible dust
Group 1
1comprises equipment intended for use in
other places l1
kely to become endangered by
explosive atmospheres
Our range of product come normally in application
covered with this group, sub-divided into 6 categories
st 10.03.2014 ATEX 10

3. category 3G (for zone 2)
Cat.3G comprises products designed to be capable
of remaining in areas in which explosive
atmospheres caused by mixtures of air and gases,
vapours, mists or air/dust mixtures are less likely to
occur and if they do occur, do so infrequently and for
a short period of time only.
The design of the products of this category must
provide a sufficient level of saf ety during normal
operation.
st 10.03.2014 ATEX 13

4. ATEX 100 - ATEX 137
99/92/EC (A
TEX 137) is intended to complement the previously published
94/9/EC (A
TEX 1OOa).These two directives cover different areas and are
intended to achieve different objectives. Responsibilities and duties are
shared between the manufacturer and user (employer).
1999/92/EC (A
TEX 137)
•Covers health and safety protection of workers
• Duties are placed on the employer
•lntended to ensure that workers enjoy a minimum level of protection
throughout all member states
1994/9/EC (A
TEX 1OOa)
• Covers products intended for use in hazardous areas
• Duties are placed on the manufacturer/supplier of the product
• lntended to facilitate the free movement of goods within the EU
Both ATEX 137 and ATEX 1OOabecame mandatory on 1st July 2003.
and set out the minimum requirements. Member states are free to
introduce more stringent measures if they wish.
st 10.03.2014 ATEX 8

5. product range ER
st 10.03.2014
30'000
-L
. EA18311
()1'630/21
' 1
l
...1
ff
-
i U
A
/7
-
1
/450.12
N
......
" r--......_
1
"
,
...............
..........
...........
-.......:::........
EAIA110M!l0!2 J IER183
1
20°'11
3 )121
• ' '
¡ ¡ "'-.,
U
EA1831
14-0l630ll!1
•
25'000
20'000
15'000
10'000
5'000
o
6000 7000 8000 m
Vh
o 1
000 2000 3000 4000 5000
ATEX 34

6. risk analysis
• hazard identification
which hazards exist under normal circumstances, which in the
case of a fault (EN 1127-1)
• risk estimation
Probability of occurrence of the identified hazards and of the
levels of severity of the possible harm of the considered
hazards (see as well EN 1050).
• risk evaluation and reduction
Comparison and decision, whether the risk is acceptable or
not
st 10.03.2014 ATEX 27

7. sta ndard fa n without specific risks
designed without specific measurements
, - r
'
OOstandard design _,
l . · - j
st 10.03.2014 ATEX 15

8. directive for manufacturers
ATEX 10 0
After 30 June 2003 products may be placed on the market in the
EU territory, freely moved and operated as designed and
intended in the expected environment only if they comply with
directive 94/9/EC.
Directive 94/9/EC provides Essential Health and Safety
Requirements (EHSRs, listed at Annex 1
1
)for
• non-electrical equipment intended for use in potentially
explosive atmospheres and
•equipment intended for use in environments which are
potentially explosive due to dust hazards and
•protective systems and for devices intended for use outside
explosive atmospheres which are required for or contribute to the
safe functioning of equipment or protective systems with respect
to risks of explosion.
st 10.03.2014 ATEX 9

9. st 10.03.2014
tha nk you
for your attention
Flakt<;omp
SweuenA
a
- - WJTT-
FlaktComp Sweden AB
Slójdgatan 3
352 46 Vaxjó
Sweden
Tel +46 470 485 50
Fax +46 470 485 60
info@flaktcomp.se
www.flaktcomp.se
ATEX 36

10. ATEX links
• directive 94/9/EG (A
TEX 1OOa)
http://europa.eu.int/comm/enterprise/atex/direct/newapproach.
htm
• directive 1999/92/EG (A
TEX 137)
http://europa.eu.int/comm/enterprise/atex/dir92-en.pdf
• guideline
http://europa.eu.int/comm/enterprise/atex/guide/index.htm
• standards
EN 1127-1 : explosive atmosphere
http://www.pellmont.ch/sikeda/deutsch/cen114/en1127-1.htm
st 10.03.2014 ATEX 35

11. categor y 1
cat.1 = (permanently explosive medium)
requires additional measurements.
Up to today all solutions are limited to gas
(cat.1G), since dust (cat.1D) cannot pass the
flame arresters.
st 10.03.2014 ATEX 20

12. quality system
IQ
• compliance with given standards
• qualification of staff
• defined responsibility
• clear workflow
• complete documentation
• identification
el)
.....
¡¡:
st 10.03.2014 ATEX 30

13. identification label
conditions for use
identification
•category 1G
into the fan and
2G out
• G= far gas
•surface max
135ºC (T4)
•motor far
frequency
control EEx de
st 10.03.2014 ATEX 31
-
M
-
EIDWIIN
TT GE_
R Schweiz
Blnnlngerstrasse84
CH - 4123 AllschwlllBasel
Vt:lftilatoren
Bez.-
-
-
-
-
-
-
-
-
-
-
-Oesignation
Type P-ER llA 71/450/2
No. 183137SX - 1 Jahr/ Year 2003
V mº/h 11
9 p kg/m1..1
.._..
2
L
Pst Pa 9661 t ºC 1 04
Pt Pa 11
454 t max.ºC ,6
...
0
.,
n min·
' 7000 n max. 7000
Posltlon1 GSO Pv kW .....9
...2
.....__
CEooaoell 1G I 2G - llA - T4
PTB 04 ATEX 4005X
Motor Nennl
ei
st1.W19lRated.P.ower 7.5 kW
Kl.-ssqJ C::l $$lfl
oci.lfon CESI01ATEX 097 EEx d llBT3

14. categor y 1G
OO _ d
_
es
_ig
_
n_
ER
DD flame arresters
' - - - - - - - -
D
J
st 10.03.2014 ATEX 19

15. <
G
IQ
• There is the same classification far
air/dust mixtures
l •Category 1D (for zone 20)
el) • Category 20 (far zone 21)
• Category 30 (for zone 22)
,...
¡¡:
• Actually, we have a complete range of
solution other for the category 1D
st 10.03.2014 ATEX 14

16. Sanofi Synthélabo (F)
• transport of solvent
vapours
• 1500 Nm3/h
• system ER1O
• up to today 20 units
installed at this
customer
SI 10.03.2014 ATEX 7

17. experience since 1 9 8 5
Hoffmann La Roche
(Basle, CH)
• transport of explosive,
toxic and corrosive
gases
• 2000 m3/h
• 70 mbar
• Tº : - SOºC ... + 200ºC
• system pressure 8 bar
• 12 bar explosion
resistance
st 10.03.2014 ATEX 2

18. flame arresters
, -
i . l- _,
J'r
' - - - ''- " 11--
each new type has been proofed (16x) with the fan by
real explosion tests (according to EN 12874) to
demonstrate the efficacy of the safety measurements
st 10.03.2014 ATEX 23

19. <
G 1985 biogas
IQ
Hofstetter (CH)
• transport of biogas
(methane)
• up to 2000 Nm3/h
with 180 mbar
• 6 or 1Obar
explosion
resistance
el)
.....
¡¡:
st 10.03.2014 ATEX 3

20. conformity assessment
IQ
el)
.....
¡¡:
st 10.03.2014 ATEX 29
group 11
cat.1 cat.2 cat.3
1
Certification from as
according to ATEX
EC type
examination
technicaldocumentationto
Notified Body
controlled producti
on ,quality system
documentati
on

21. category 2 or 3 / gastight
(G a nd / or D )
'· -
DD' - - - - - -----=---------=----.
OO _ _
seal _
J-
motor
EEX nA
EEx e
or
EEx de
(for FU)
gastight design to avoid escape of gas into
the atmosphere or towards the motor
st 10.03.2014 ATEX 17

22. requirements for cat. 1G
protection measurements must guarantee
• in the event of a f ailure of one integrated measure,
at least a second independent means of protection
provides for a sufficient level of safety; or,
• in the event of two faults occurring independently of
each other a sufficient level of safety is ensured
solution:
explosion resistant design + flame arresters
st 10.03.2014 ATEX 21

23. 199 2 solvent va pour
Hoffmann La Roche
(Basle,CH)
• solvent vapour
• 200 m3/h
• model ER1O
• LRV- installation ·
with 30 tan units
st 10.03.2014 ATEX 4

24. st 10.03.2014 ATEX 1

25. size and sensors
• the design of the fan and the choice of the material
is determined by the expected pressure and
temperature in case of an explosion or in case of
a fire. Also thermal reaction can cause a heating.
The fan withstands an explosion shock without
reduction of the safety function of the system.
• the protective devices are equipped with sensors
to indicate a fire or abnormal temperature. The
sensors are connected with other elements to stop
the process and to separate other parts of the
installation.
st 10.03.2014 ATEX 25

26. risks EN 112 1- 1
• probability and volume of explosive media
> degree of dispersion and concentration
• ignition sources
> hot surfaces, flames
> mechanically generated sparks
> electric units, motors, switches
> electrostatic and electrochemical effects
> lightning
> electromagnetic waves , radiation,
> shocks waves, exothermal reactions
st 10.03.2014 ATEX 28

27. " -
motor
EEx nA
EEx e
or
J EEx de
(for FU)
•, :o
category 2 (G and/ or D )
DD design ER
¡ _ . ; : :
..
DD non-sparking design
DD' -
seal
-
)
.
also under abnormal circumstances the fan
must not generate any sparks or hot surfaces
st 10.03.2014 ATEX 18

28. categor y l G (for zone O)
Cat. 1G comprises products designed to be capable
of remaining in areas in which explosive atmospheres
caused by mixtures of air and gases, vapours, mists
or air/dusts mixtures are highly likely to occur and
are present continuously, for long periods of time or
frequently
Equipment of this Category is characterised by
integrated explosion protection measures functioning
in such a way that:
•in the event of a failure of one integrated measure,
at least a second independent means of protection
provides for a sufficient level of safety; or,
•in the event of two faults occurring independently of
each other a sufficient level of safety is ensured.
st 10.03.2014 ATEX 1
1

29. 1G/ 2G - llA- T4
means
0080 : number of the ,Notified Body'
who checked the quality system (lneris for us)
1G : inside category 1 for gas
/ 2G : outside category 2 for gas
llA : explosion group of the transported gases
T4 : maximal temperature of surfaces
st 10.03.2014 ATEX 32

30. project ATEX 94 / 9/ EG
In January 1999 a project had been set up to
extend the range of zone-0 fans and to
receive the ATEX certificate
in March 1999 the arder of Sanofi Synthélabo
(France) far 6 fans intensified our efforts
the required new size had been incorporated
into our project
we took the necessary steps to receive the
ATEX certificate
st 10.03.2014 ATEX 6

31. explosion tests
according to EN 1 2 8 7 4
1-inlet
2-outlet
3-throttlel
4-ignition on severa! points
5-flame arrester at inlet
6-flame arrester at outlet
7-flame sensor
8-pressure sensor
7 5 4 8 9 8
o
8
8
'
st 10.03.2014
D
e
.
!
.
!
"'
(type examination)
ATEX 33

32. requirements for cat. 1G
• the protective systems must be able to withstand an
explosion inside the fan.
• the protective systems must be arranged in such a
way, that any dangerous chain reaction is
impossible. Flames or deflagrations inside the fan
must not escape and cause detonations outside.
solution:
design ER + flame arresters close to the fan
proof by real explosion tests
st 10.03.2014 ATEX 22

33. 1993 to 1996
explosion tests and certificate
PTB (Physikalisch-Technische Bundesanstalt, Braunschweig)
Erre ichbare Leistungen Zone 0-Ventilatoren
350 - - - - - - - - - - - - - - - - -
300 +
=
===r:=====- 4..::--
- - +-- - -l-- -
';:"
200 + -
- - --1- - - + -
- - --I-
- ·
.s
2 1
s
o
r
.
.
.
.
,
. t
:
:
:
:
:
:
-
--
r
---r
-
---
r
--.
.
.
.
-
r
-
-1
e
EA llA/100/520 zweistufig
Ansaugvolumen [m3/h]
st 1
0.
03.
201
4 ATEX 5
0 +-
-
-
-
-
- - -
- -
-
-1-- - -1
- -
- 1
o 50
0 10
0
0 1500 2
0
00 2
50
0 30
0
0

34. Actuel ly concept and design ER
Timpero.tursonde
1/2' G
EV/ST• T
DN!:iO b is DN300
Tur
b
o
l
o
.
b
;
rinthd
i
ch ung
+ Sperrg¡so
.nschtuss
1 11 1 1 1
------------------------------------
st 10.03.2014 ATEX 24

35. operating conditions
Sensors measure the temperature at the inlet flame
arresters to detect a tire and at the same time they
indicate an abnormal temperature of the medium.
Fans for category 1G are always designed far
specific operating conditions, which are given by
• speed rate (rotation)
• operating temperature
• category of the media
• pressure
under no circumstances the fan can be used
outside the range of these specifications !
st 10.03.2014 ATEX 26

36. categor y 2G (for zone 1)
Cat. 2G comprises products designed to be capable
of remaining in areas in which explosive
atmospheres caused by mixtures of air and gases,
vapours, mists or air/dust mixtures are likely to occur
The explosion protection relating to this Category
must function in such a way as to provide a sufficient
level of safety even in the event of equipment with
operating faults or in dangerous operating conditions
which normally have to be taken into account.
st 10.03.2014 ATEX 12