ML20205N330

Forwards Sketch of Feed Sys,Withdrawal Sys Refrigeration Cart & Typical Withdrawal,Large & Small,Pumping Stations

ML20205N330
Person / Time
Site:	05000000, 05000603, 05000604
Issue date:	10/27/1988
From:	Pfeifer W ALL CHEMICAL ISOTOPE ENRICHMENT, INC.
To:	Swift J NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
References
NUDOCS 8811040058
Download: ML20205N330 (5)

Text

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2 NOV 011988 ) f nyss MAIL SECil0N DOCKET CLERK October 27, 1988 L. dhM

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t E u.s Voi /8g >ku Dr. Jerry Swift g p.

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OWFN 6-H-3 One White Flint North A u 11555 Rockv1110 Piko '~'

Rockvil10, MD 20852

Dear Jerry:

In our discussions on Wednesday, A1ChemIE indicated that sketches for feed and withdrawal carts would bo provided. For your uso in replying to the ASLD's questions please find attached a sketch of a food system, a withdrawal system refrigeration cart, and typical withdrawal, large cnd small, puinping stations.

If you have any go.astions or require additional information please call me or Mr. Ernie Evans. I hope the enclosed is of uso in preparing your responses.

Vory truly yours, ALCHEMIE, INC.

William A. Pfoifer Director of Special rojects i WAP/bc Enclosuros I

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l  ?"040058881027 *%8 adkWkt Pino Ridge Office Park, Suite 202 B 702 lilinois Ave., Ook Ridge. TN 37830 (615) 4 2-0

FIGURE 1

. . SMALL WITIIDRAWAL CART PUMPING SYSTEM A withdrawal cart will ave a pumring syst-em like the one shown here. For some . ro 'uci.s it will *ue luigi as si. uni in I'igura 2.

In addition there will be cf.1d traps which will be cooled using solid CO2 (Dry Ice) or liquid nitrogen or mechanical refrigeration.

Application Edwards mechanical booster pumps are being used ,

in a growing number of applications where fast .

pump down times are required and where environ-mental or energy usage considerations are ruling out alternative methods.

The mechenical booster, when backed by an oil n scaled mechanical pump 3r a liquid ring pump, is I usefulin the pressure ranDo 500 to 10 torr. Higher vacuum can be attained by using two or more ,

booster pumps in series.  !

Mechanical boosters combine high pumping speeds .

f with small physical size and their most efficient ' -

range of pumping speeds fills the ' gap'left between

! standard speed curves of rotary pumps, vapor dif- ,. J l fusion pumps and vapor booster pumps-see i <

curve.They can be used as the final stage of a pump system or they can be used as part of the backing system for vapor booster and diffusion pumps. i ,

TYPICAL PERFORMANCE CURVES FOR ALL TYPES OF VACUUM PUMPS

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ioo hug (g Typical applications of Edwards mechanical boosters include steel degassing plants, coating s $f ihbhk; ulants, furnaces, wind tunnels, space simulators, '

' ,o-.,kN4 go a We io a io i io* io' io impregnation plants, drying and degassing process mssuntaona plants, semiconductor production, packaging equip-i ment, pharmaceutical freeze dryers, preparation of 1 Vapor diffusion pump. 2 Oli vapor booster pump. vacuum spectrographs for metallurgical analysis 1

3 Mechanical booster pump, backed by notary pump.

4 Hotary pump. and evacuation of large vacuum chambers,

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. ~ :,Dl ,:,' f)'p.gGYgx FIGURE 2 LARCE WITifDRAWAL CART PUMPING SYSTEM In addition to this pumping system there will be a mechanical refrig-eration system to cool cold traps. This refrigeration system will be about as large as this pumpin8 system. Such a combination will service two withdrawal streams, i.e. product and tails.

(Prolininary)'

FEED SYSTEM FOR DIMETHYL ZINC (DMZ) y Figure 3 ,

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Vacuun Ptup The equipment for a feed system will be contained in a space approxi-mately 3' wide X 4' long by 5' high.

3 FIGURE 4 -

COLD ' DTAP WELLS WI'DI MECHANICAL RhRIGERATION ,

These are used for withdrawal of product and tails. These units were used for collecting UF at the GCEP.

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