Document wKXGZKoKq1mrpxBGQq1ZkO6wd
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April 25,
Pt-rat froabuir;:;; :.:jr Co.
&ad r-;'.str5.'',-'.5-:J.-'jn 5?sZ%'.
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In compliance i.hL'ch aoulioabls OSHA standards sad KICSH ree;ana.Tulom . a plant breathing air system has bsen designed sad is cn order, fha iysta cc:n_3is of the following;
I, A compressor system capable ef supplying air to a aiiciii.on of $0
-arsenrel;
>, A sorbent bed and filter capable cf rsnorirg hydrocarbon oontiminaufcf , ,
l, Sufficient contisoua floe full face eir lire respire!a::% to rrevido
c -rct&stioa for plent operatic par.souml.j Din `LssionJ
n larch 11- '37k} the National Institution for Cceuputionzl c-r'ety sui-l. l z T-Hh^ (II i53uod their ''Foeanno3,risd Occupational Standards fer t.i^ v/anuTc-cturc 0 f Syr :-eic Polyaer frim vinyl Chloride,**
In part thin rueemendation, states that wnployses hso 3,-rtor a reactica shill be provided i'-h and required to wear a full face ruppli- >i air roEpiraicr \S. the -autinous flew or preseurs remand type? in accordance with 35FA standard toc
1911,131* *
fee afore mentioned article states that a breathing air system shl sons 1st.
of - reaching air cancroasor fcHcned by a suitable purifying -sorbent bad
fl - rj cep atla of providing grade D bre:r**Ct ni-t'2
23 L i-fl 7 .Alj ,-Ji jT-J *3-' 'J1. ,1., -
Os. -vcscciatloa Comodity Specification G=7ci--19&5a (see attachment}
7ne breathing air oynteia proposed by the mitor till! in f'u:b root or ar.nr-ri all tha afore aantioand regulatory standards* end ccuiti be exp'rdas in the ;t*.c~ that future noses yarrant it,.
At this point un in depth analysis of the system tuploto -A.fh fics mtsr, r-:a.
*-..Jr1i..V 1*, ba provided.
GENC 003514
/}UVN oX>ft\&D
---1^03 ^ - .., C
r. ouprsi;
1h:; propose*
C(< CCr^ c
Lfl/r., v; St~L -<- /firths
ur.'cr^'ior ;',. o ":* till co"j-`iOz
cc.-. p~u, ;v u^O; :;"~h
'.C-l :.ro nur.bir ill ws c; v'-'i
.iCd
'i'iL'il-r-.i **\ * P O-- - " ' >
<iiu *^-3
rajlc used
0
, . j
",?r
o^::' .1 ' ^ -3.1 ^ v. i, '- .j' .'P*. -'Slo
1., '.' or esal coFip:'2.;30.''s
c icssi's for th';v; rr'il-^ znc jc.. -
first 'csing ti?t they Z'.err.e s. unique .ih ,,lity be 3c-.\.t "mpi/rivi'* f:
li
-.'r.0 iaiirs air Second zh.it uns cir w;uld Isava tie .;n,T r-.-s-:or H3i''^c<z. iz
-,-ith watsr rarer^ Third, *ihat ub.s air u'tnld. leave a'., iicio-'ii t-arco-rai '*.'
eliminating 'oh? need for an after cooler,
20 Four i mailer compressors yers o'acse- over one .liqc unit * or tho relieving iseuens.,
a; ihg increased reliability of frf units over oro barg? units i,,,bhe failure of one compressor `cnll only result in a 2$% reduction of the ayctsn s-'p;u;ity\.
h, i~
1,.; oca to on.'.;- ^-viV tn.lv':: z'h
service and mrlnlainsdu
c, the units can bo started up 53 ds'jiand requires tiers by resulting in an energy savingsj
3<> Filter and Sorbtion Beds0
Tpr the purifying system a ceramic filter separator follerred by an act-'.'* `or cq ;n aisorbtlon bed was chosen.- In the system, as proposed two units will ' ue^. one on standby and cue in eervicao Tils system will be capable of zcot .ding the beOscfai of air to a point wall below Ippm, At full contamination rate e-c i pur"--liar should last a minimum of three months,
Z-j Distribution System and Respirators,
ui this tioa it ia the intention of tha writer to provide braathing air .0 tr .mowing areas:
I, Palpai? 3aiAdihg (fceth wpstsirs mi dhSKstaira) 20 Monomer Pump House j -j Monomer Urloading h,, Tank Farm -irea, 5, THF Area 5, Boiler Hcr^a Control Roosia
GENC 00 251=;
c 1, 'Ib.s di.otrlliiir.ovi .syslar. -i=
ui?i ncnrk;... -; : v:. , It -
'.iic.-: fr'-v. ihe w-rebo'j'ss buil'i-L'i tx lx-? rrr.xxx: a.-c-- . . fi;
v-cr.xh line;
eor-sixb sf x.--o ire.'. c:.vx.
tho "c-.;vs lino sir.a-3. nr -rnsv rll cy..x;. ;ox. " cron Tcc...
icrifiey bo ccl, should 03 leer xit-'n 3 73i3 If it k lx;;- >1:0 !,hc
capacity vas doubled the sons disiribuuir-n '-cp.c?z cxuls c; u.-icc
-1 THiilnc p : resoure drop cf 6 psi
7 Carbon sbssj wolfed and flanged pips will bo used carc'-p vni Vas ,x; :t y. ZztozTi 3X331 i/tx ehe sen of galvanic sc! l:e to po^sioln coni clay cr sm c : -.3 sine -coating,,
''Shrader" tytss quick nonuset ccupliuge rill bo ucsb or <-11 crais-h cir xl'c^ for easy -connection ureter pressure to on air iir.x., Ihs-se cone tiers are r J used for any otter purpose in the plant, and1 there Core x cecc- -;;-,ll be re -csoibiliiy of the usur connecting his line to r.he crony pipe,
ill piping -.ill be color coded per OF! LA standards to further elinir .-.l, -ty possibility of hock up to the wrong lisa,
Constant tier full face respirators rave been cfo.;n r; fls sh.-rdcr L cor, "uis plant-. Tax air usage with these masks is greater tfan with xlc dacem
7s? however; the constant fleer provides both cooling and protection a c cat ;slays 3
Pending issuance of GSHifa psrr.ahant work rales, bubble suits eery n- .-s. -vr -- purchased fen maintenance personnel '..ho nan be working on cent-arj v.tie -: invent a
Finally, it is r-ic amended thatcue lull face rei.pl; ab-or be punahase : y -1 plant worker, -`his is due to the stringent re{ ulaiior.u which Cali be; ,,nos3d for cleaning and disenfectlng lacs masks s.
Connl-itezii
ft is the writers opinion that the afore mentioned 373tan will full fill sjtce-i o ill applicable Federal and Industrial standards for breathing air syoccor u,
should 09 noboc at this tine that 'fax xi_? pr-r-'itel to -fx ;j;r it au . -n:
wil. .. pleasantly cocl, clean, and at an approximate rclauive 1-aridity -at* 2i$,
Thi; ill reduce 01* eliminate conplaints arising from the drying out of fete ruic Tarn'.:' nos-
V ILlibin
Mij. .Mien,
"/7 OUpi :
GENC 003516
<>n -rn-C 0*^ -A' r
LL y
i' T~
Compressed Cas Association, Inc.
P.
' , Air
__ Specification G-7.1 Page 3
AIR SPECIFICATION
1. SCOPE
1.1 This document describes the specification requirements for air, including atmospheric air and air synthesized by blending oxygen and nitrogen in the proper proportions. It is different from other gas specifications because atmospheric air is not a manufactured product but is naturally occuring Atmospheric air contains a large variety of trace constituents on many of which it is
impractical to set individual limits. However, this specification qualifies certain grades of air by limiting the concentrations of specific trace constituents.
2. -CLASSIFICATION 2.1 Types -- Gaseous air is denoted as Type I and liquid air as Type II. 2.2 Grades -- Table 1 presents the component maxima, in ppm (v/v) unless shown otherwise, for the types and grades of air. A blank indicates no maximum limiting characteristic.
c
QC
rs
V
c
Limiting Characteristics
% 02 (v/v) Balance -,Predominantly N(Note 1)
A atm.
Water
Hydrocarbons (condensed) in Mg/nri ci gas at NT? Note 3)
Carbon Menrmrin
Odor
Carbon Dioxide Gaseous Hydrocarbons (as methane)
Nitrogen Dioxm=
Nitrons Oxime
Sulhar Dioxide
Halagenated Solvents Acetylene
Permanent Particulates
TABLE 1
1 TYPE 1 JiGASEOUS)
,/// Z0.I TYPE 11 (LIQUID)
W GRADES
^
BcDE
FGHJ
AB
atm/ atm/ atm/ atm/ atm/ atm/ atm/ atm. 19-23 19-23 19-23 19-23 19-23 19-23 19-23
19-25 19-23
none cond ensed (per 5.3.1)
note 2 note 2 note 2 note 2
note 2 note 2 I --10.4aF
none
(per
5
5
5
5.4.1)
note 2
50
see 5*1.5
20
see 5.1.5 1000
10
see 5.1.5 500
5
see 5,1.5 500
5
see 5,1.5 500
5
see 5.1.5 500
1
see 5.1.5 0.5
5
none 5
25 15 10 0.5
10
2.5 0.5 0.1 0.1
2.5 0.5 0.1
10 1 0.1
0.05
0.5
0.5 I
0.5 -.15
Note 1: The term "atm" (atmospheric) denotes
the oxygen content normally present in" atmospheric air; the numerical values de note the oxygen limits for synthesised air. Note 2: The water content of compressed air re quired for any particular grade may vary with the intended use from saturated to very dry. If a specific water limit is re quired, it should be specified as a limiting
dewpoint or concentration in ppm (v/v). Dewpoint is expressed in temperature F at one atmosphere absolute pressure (760 mmHg). To convert dewpoint F to C. ppm (v/v), or mg/liter, see 7.1. Note 3: No limits are given for condensed hydro
carbons beyond grade E since the gaseous hydrocarbon, limits could not be met if condensed hydrocarbons were present.
CO ^ l fyr'
fJ'CL 0
* SENC 003517
1j ; h ^ ' r -n n n !,?'! }l A I : n A ? 3 ;U 5 1 ;UjO*0:ji
The Selas Vape-Sorber operates in two stages: (1) Automatically removes water, water-oil emulsion,
free oil in droplet form and dirt from compressed air or gas lines.
(2) Removes oil vapor and free oil in the form of mist and fog by passing the compressed air or gas through an effective adsorbent. Vape-Sorbers are designed to allow for sufficient contact time to enable adsorbent to effectively pick up all of the oil vapor and free oil in form of mist and fog.
;v Sorbsr Works:
CLEAN. M
diifme mi
the Vape-Sorber- uriliwa beatc- priwdptwof capilLarp*--- *.
physic*- and. surfs separetieth- It a-quitodiffaiuat fieimuiwxfci--rn effectruew- iaS-aCsS:' -I thaiV-,so-ealIW simple; fihsariw* method* aariTteehiriqueJL- r* employing chsogoin flosadirBetie* o*r-^utrifugal4argtt^Ay. . principle* It*-high efficiency remaam-eewateetthToegboMfcTws^j period* of hnth high eei It-- ffr ~ii ;
Phase- separatisms is- accnnrliahadr by mean*- of co--v^. trolled peeeeiry, meat*. CopraaiA.alr^oo'-o*beT-g-ei*Bieg.,tfgC'Vape--Sorberv passe* thweghtWlimiisl iiipiill-- ah mr ntg where-
it is stripped. ol_ liquid; neiiMiaabe^'--d dirtu. Droplets-f' coalesce o*-tbe-jerf--si the- eUeoa; beeseta. ther di--
phragi* aerie* i*.sae*gr tha* the-pt*m* dray
the element-
^
The- rejected- phaaar d--pe it* thttwwa^edtfaar-V
Sorberr and is-
rhinirsl iim-- The'eh edged lidww^hh~tii~
free- oik bfc-h
oil enl
--- -
fog anditMM^i'bwsiMpfiMMdNAigMMdie^NtM Thus*.
cont*nHMtMe*.wilii
r^S^aaeiff.-
-,-li
Ccnstructlna of ttie Vaas-Soitsr
The fferies I VAPE-SORBERS are compact, functionallydesigned units engineered for in-line point-of-use installa tion. They can be supplied either in carbon steel with cast steel head, or in nickel-plated brass with cast-brass head. Series I units have a disposable canister.
Series II VAPE-SORBERS are equipped with "O" ring type heads for positive sealing.
The following names are registered trademarks of ela* Coloration of America UQUl-JECTOR
YtlPe-SORBXA
Series III VAPE-SORBERS have single-boll quick-opening heads, and offer easy accessibility to filter elements and adsorbent. Both Series II and Series III units are designed and built according to Code requirements and can be "inspected and stamped" upon request
's ENC Ci 03518
r
;S(EMEAfiHlNSCf
T-; _
C0.V;BRE33OR SYSTEM
is s ad comclefe with galvanized
p'ss . = ranK to ASME code, fitted
with rajce glass, pressure gauge,
press.switches, relief valve, silent
crec- aives. shut-off valves, service
iloo ; ::ra r,ers, regulating vaives, sole
noid a~j:-orf vaives, intake silencers,
disc -s-oe air and water separators and
.-. a a 'acs, complete with intermediate
co'-
siiable for separate v/alt
7-:, z s an eiectricai starter or
due -< control panel.
OIL FREE AIR -- Requires no internal lubrication, dis charge air from a SIHI Liquid Ring Compressor is FREE FROM OIL, CARBON or PLASTIC PARTICLES!
SCRUBBEDTM CLEAN by the action of the liquid ring with in the compressor the AIR DISCHARGED may be FREE EVEN FROM IMPURITIES DRAWN INTO THE PUMP SUCTION!
ELIMINATION OF FILTERS -- made possible by the SCRUBBING ACTION described above.
DRIER AIR -- is supplied from a liquid ring compresaor when compared to a conventional reciprocating or rotary vane unit; Due to the MINIMAL TEMPERATURE RISE ACROSS A SIHI COMPRESSOR the air or gas usually dis charged is APPROXIMATELY 25F ABOVE the tempera ture of the INCOMING SERVICE LIQUID. As the saturated discharge air has a lower temperature, the corresponding dew content is lower, ELIMINATING THE USE OF AFTER COOLERS and enabling considerable ECONOMIES to be made IN DRYER SELECTION AND OPERATION.
PULSATION FREE AIR SUPPLY--due to ELIMINATION OF RECIPROCATING COMPONENTS.
VIBRATION FREE OPERATION-- requiring NO SPECIAL FOUNDATION due to rotary action as opposed to reciprocating forces.
LOW STARTING TORQUE -- permits considerable ECONOMIES IN ELECTRICAL STARTING AND CONTROL COMPONENTS.
MAINTENANCE COSTS REDUCED --due to the ELIMINA TION OF PISTONS, RINGS, SLIDING VANES, INTERNAL CONTACT OF COMPONENTS, METALLIC, CARBON, PLASTIC OR OTHERWISE.
SIMPLIFIED INSTALLATION --because the SIHI pumps and accessories are MOUNTED ON A REMOVABLE DECK WHICH MAY BE REAOILY DETACHED from the pressur tank. THE SIHI SYSTEM CAN USUALLY BE INSTALLED AFTER BUILDING CONSTRUCTION AND CLEANING of the proposed location is completed.
system are covered by the comprehensive SIHI auth rizad service are available coast to coast.
m
1
GENC 00G51V
MEWKHlNSCrc
the principle ofSIHi double acting liquid ring pumps
--=,f of the total air or gas entering the stags enters ugh suction port (D) at which point the service
cud is retracting from the root of the passing inv ~s,;er blades. This air or gas is carried between the --cellar blades and as the service liquid (due to j rccal shape) commences to completely immerse
impeller blades to their root the air or gas is -c.Tpressed and discharged from the pump via dls-
~arge port (F), Concurrently a similar action takes place Involving --e remaining fifty percent of the air or gas through suction port (0,) and discharge port (F,)-
Tho above illustration is intended to dapict the operating principle of the SIHI double acting liquid ring pump only and should not be considered lor engineering details o! construction.
As in the SIHI single acting pump the pump body (A) is round externally. However, note that the in* ternai periphery of the body is eliptical (B) th centre of which coincides with the centre line of the shaft mounted impeller (C). Due to centrifugal ac tion, service liquid introduced to the comprsesor assimilates the eliptical shape of the internal peri phery. By controlling the depth of the service liquid the impeller blades are totally immersed at six and twelve o'clock, whereas ail but the blade tips are exposed at three and nine o'clock during each revolution.
By locating the suction parts (), (,} in a strategic position in the suction port plats (E) and the dis charge ports (F), (Fi) in the discharge port plate (G), a suction/compression cycle is completed with each 180* of rotation.
There is no metal to metai contact during this com plete cycle thus the need for internal lubrication is eliminated. During the compression cycle, heat is being imparted to the service liquid which is car ried away by the introduction of additional coot serv ice liquid. The amount of coolant supplied is synony mous with the amount discharged to the separators.
The double acting principle is utilized for high pres sure compressors because the points of highest pressure are diametrically opposed hence e radially balanced shaft loading reduces deflection and facil itates the application of mechanical seals.
GEt-lt 003520