INVESTIGATION OF MECHANICAL METHODS OF SCALE REMOVAL FROM HRT HEAT EXCHANGERS Page: 1 of 12

UNCLASSIFIED
OAK RIDGE NATIONAL LABORATORY
Operated by
UNION CARBIDE NUCLEAR COMPANY
Division of Union Carbide Corporation
Post Office Box X
Oak Ridge, Tennessee

EXTERNAL DISTRIBUTION
AUTHORIZED
ORNI
CENTRAL FILES NUMBER
59J-7- Iai2

DATE:

SUBJECT: Investigation of Mechanical Methods of
HRT Heat Exchangers

Scale Removal from

I. Spiewak
C. H. Gabbard, D. M. Eissenberg, J. C. Moyers and I. K. Namba

ABSTRACT
Tests were conducted to determine methods of removing scale
deposits from the HAT heat- exchangers. A mockup of-the heat ex-
changer header was cleared.of a -deposit of iron rust by reverse Alushing
at a flow rate below 75 gpm,.. A tube bundle consisting of 109 1/4 in.
O.D. x 0.049 in. wall tubes was plugged with rust. Approximately
800 of these tubes were unplugged. by using a 70 psi water pressure
differential in combination with vibration from a pneumatic rivet
gun. No mechanical method was employed in the tests which could
clear the remaining tubes.
NOTICE
This document contains information of a preliminary Tsz ;+ rmxtion is mot to be at4sltraeted
nature and was prepared primarily for internal use riated Or othe - -
at the Oak Ridge National Laboratory. It is subject e n o er : i - :-s d ? n ;
to revision or correction and therefore. does not 'u'< - vx; j ^s
represent a final report. . *4 1g e d r
UNCLASSIFIED

X-622

July 21, 1959 COPY NO.

TO:
FROM:

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Gabbard, C.H.; Eissenberg, D.M.; Moyers, J.C. & Namba, I.K. INVESTIGATION OF MECHANICAL METHODS OF SCALE REMOVAL FROM HRT HEAT EXCHANGERS, report, July 21, 1959; Oak Ridge, Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1024039/m1/1/ocr/: accessed May 25, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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