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Патент USA US2109064

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LMAN
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CONDT'ÍNSER
l 30,
1936
ÍNVENTOR
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BY
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2,109,064
Patented Feb. ZZ, 1938
UNITED STATES PATENT OFFIÜE
2,109,064
CONDENSER
Fredrick Gettelman, Milwaukee, Wis.
Application April 20, 1936, Serial N0. '75,260
15 Claims. (C1. 257-35)
This invention relates to improvements in con
densers.
The particular condenser herein disclosed is
specially designed for use as a part of a re
5 frigerating system, where it effects great econo
mies. A variety of other constructions embody
ing the invention may, however, readily be
adapted to different uses.
of the water sprays over the outer surface of
container 3 to cool such outer surface by evapo
U1
ration.
The gas or vapor to be condensed is supplied
through the pipe l5 which terminates within an
elongated cylindrical chamber i6 which is pref
erably substantially concentric with the pipe i5
gas which is delivering up the greatest amount
condensable gases such as entrained air or the
of heat (in the form of latent heat).
densed is effected by commingling it directly
like, will accumulate in the upper part 4’ of the
annular reservoir è and may from time to time
be drawn off through the pipe i9 subject to the
20
control of a valve 20.
The condensate is drawn off through a pipe 2|
with previously formed condensate.
in which a valve 22 may be incorporated if de
which the initial cooling of the gas to be con
y
Another object of the invention is to combine
a jacket type condenser with an evaporation type
condenser to promote the efficient use of the
coolant.
Another object of the invention is to employ
the kinetic energy of the gas entering the con
denser as a means of circulating the condensate
with reference to the cooling surfaces as well as
the nozzle through which gases are newly arriv
ing into the apparatus.
In the drawing:
Figure 1 is a view in axial section of. one em
35 bodiment of this invention.
Figure 2 is a view taken in transverse section
on the line 2_2 of Figure 1.
Like parts are identified by the same reference
l
the top of the container 3 and provided with
small apertures from Which at least some portion
One of the objects of the invention is to pro
vide a novel and improved type of condenser
employing as its principle of operation an ar
rangement for delivering the coolant to the con
densable gas as nearly as possible at the point of
condensation so that the coldest. portion of the
coolant is always acting upon the portion of. the
Another object of the invention is to employ
the aforesaid principle effectively in a device in
40
serves as an extension of pipe ll is carried over
and which communicates with the annular reser
voir il. through manifold i8 and a return duct l1.
The tubular chamber l5, as well as the interior
chamber i of the reservoir, will normally be at
least partially filled with condensate.
Any un
15
sired.
Assuming that the device is operating upon
ammonia vapor, the gas arrives through pipe l5
and condenses upon the chilled inner tubular
wall il) of. the reservoir 3. Since the gas gives
up the .greatest portion. of its heat at the time it
is condensed and is giving off its latent heat, it
will be obvious that the water delivered through
the ports 9 is being directed against that sur
face of the wall l0 where it will be most effective
in absorbing heat.
When suflicient condensate has accumulated
so that the chamber I6 is full of condensate and
the chamber fl is partially ñlled therewith, the
continued arrival of the gas` through pipe l5 will
entrain the liquid condensate in chamber l5
characters throughout the views.
and cause a circulation thereof to force such
I have chosen to illustrate my invention by
disclosing a very simple and economically manu
condensate against the chilled surface of wall Il). 40
The gases arriving through pipe l5 are delivered
factured embodiment thereof in which an an
nular tank 3 having an interior chamber 4. for
into intimate contact directly with the wet con
the gas and condensate is provided with heads
5 and 6 which close its interior cavity 'l for use
and are consequently very efûciently cooled im
45
mediately upon their arrival in chamber Hi, so
that they tend to condense either in chamber I6
or in the lower part of chamber l! against the wall
lí) to which the coldest cooling water is being
delivered.
50
as a reservoir or jacket for the coolant.
The water which is preferably used as a
coolant enters through pipe 8 and is directed by
the small apertures 9 in the lower wall of said
pipe against the lower interior surface of the
tubular inner wall I0 of the tank 3.
A similar pipe ll serves as a collector, and
through it the water leaves cavity 1 and is car
ried away to any suitable point of discharge.
Preferably, however, a length of pipe l2 which
densate independently of any intervening wall
The liquid ammonia will flow through pipe 2l
to return to the evaporator and, as above indi
cated, any accumulations of air or other uncon
densable gases in the upper part à’ of the reser
voir are drawn off through pipe I9. The ar
2
2,109,064
rangement eliminates the necessity for a sepa
rate separator.
To draw liquid or gases from the chamber 4
at different levels additional pipes 23 and 24
may be provided as desired.
I claim:
1. In a device of the character described, the
combination with a heat exchanger including a
chamber for condensate and uncondensable gases,
of means for delivering a condensable gas to said
chamber below the level of condensate therein,
means providing a cooling surface disposed
directly in the path of said gas and condensate
with which said gas has contacted, said surface
being disposed below said level and between the
point of gas admission and the nearest point at
said level, whereby to tend to condense such con
densable gas before it can become commingled
with uncondensable gas above said level, and
means for delivering a coolant directly to said
surface for the immediate absorption of latent
heat given oiî in the condensation of said gas
both to said surface and to condensate adjacent
said surface.
2. In a device of the character described, the
vide a coolant chamber within said reservoir,
said chamber and reservoir having a common
wall with a lower portion positioned to be sub
merged in the contents of both chambers, means
for delivering a coolant into said chamber against
said lower portion of said wall, means for with
drawing coolant from another portion of said
chamber, and gas supply means connected with
said reservoir and arranged below the level of
condensate in said reservoir to direct the sup
plied gases and entrained condensate toward said
wall portion.
6. In a device of the character described, the
combination with an annular reservoir and
means closing the ends of its interior cavity to
provide a chamber for coolant, said reservoir and
chamber having a common submerged partition
wall, oi means entering said coolant chamber and
comprising a pipe arranged to direct coolant to
ward a portion of said wall below the normal
level of condensate in said reservoir, a conduit
below the level of condensate in said reservoir
having its ends in communication with said
reservoir and arranged with one of its ends
directed toward said partition wall portion, a 25
combination with wall means forming a com
supply pipe operatively connected to deliver con
partment for condensate having a predetermined
wall portion adapted to be submerged in con
densate in said compartment, and circulatory
densable gas to said conduit in a direction to in
duce a flow of said gas and condensate toward
said wall portion, means for withdrawing con
densate from said reservoir, and means for with 30
means for directing a iiow of coolant directly
upon said wall portion, of a conduit communi
cating at its ends with said compartment and
containing condensate, one end of said conduit
being directed toward said wall portion, and a
delivery pipe for condensable gases terminating
below the level of the condensate and directed
along said conduit in a position such that the
gases delivered thereby will entrain condensate
and induce a current toward s_aid wall portion.
40
3. In a device of the character described, the
combination with means forming a pair of cham
bers one within the other having a common
partition wall positioned to be submerged in the
contents. of both chambers, of means for direct
45 ing a coolant against a lower portion of said wall
in oneA of said chambers, means for withdrawing
coolant from another portion of the same charn
ber, means for introducing a condensable gas
into the other of said chambers below the level
of condensate therein and directly below said
wall, said means being adapted to induce a iiow
of such gas and condensate toward said lower
wall portion, and means for withdrawing con
densate from the last mentioned chamber.
4. In a device of the character described, the
combination with means forming a pair of cham
bers` one within the other having a common
partition wall positioned to be submerged in the
contents of both chambers, of means for direct
ing a coolant against a lower portion of said
wall in one of said chambers, means for with
drawing coolant from another portion of the
same chamber, means for introducing a con
densable gas into the other of said chambers
below the level of condensate therein and directly
below said wall, said means being adapted to
induce a flow of such gas and condensate toward
said lower wall portion, means for withdrawing
condensate from the last mentioned chamber,
70 and means communicating with the top of said
last mentioned chamber for withdrawing non.
condensable gases therefrom.
5. In a device of the character described, the
combination with an annular condensate reser
75 voir, of means closing the ends thereof to pro
drawing coolant from said chamber.
7. In a device of the character described, the
combination with an annular reservoir and
means closing the ends of its interior cavity to
provide a chamber for coolant, said reservoir and 35
chamber having a common partition wall, of
means entering said coolant chamber and com
prising a pipe arranged to direct coolant toward
a portion of said wall below the normal level of
condensate in said reservoir, a conduit below the 40
level of condensate in said reservoir having its
en_ds in communication with said reservoir and
arranged with one of its ends directed toward
said partition wall portion, a supply pipe opera
tively connected to deliver condensable gas to 45
said conduit in a direction to induce a flow of
said gas and condensate toward said wall portion,
means for withdrawing condensate from said
reservoir, and means for withdrawing coolant
from said chamber, said coolant withdrawal
means having openings arranged to deliver at
least a portion of the withdrawn coolant over the
exterior surface of the reservoir to provide addi
tional cooling by evaporation therefrom.
8. In a device of the character described, the
combination with a heat exchanger including a
condensate chamber and a coolant chamber hav
ing a common partition wall, said condensate
chamber having another wall portion exposed to
the atmosphere, means for directing a flow of 60
coolant into the coolant chamber against said
Wall, means for directing the flow of incoming
gas and condensate against said wall, and means
for withdrawing coolant and condensate from
the respective chambers, the coolant withdraw
ing means being arranged to deliver at least a
portion of the coolant over the surface of the
exposed wall of the condensate chamber for
evaporation of the coolant from said wall.
9. The combination with a heat exchanger in 70
cluding a chamber for condensate having a cool
ing wall, of means for delivering a condensable
gas to said chamber below the level of conden
sate therein, said wall being provided with a
portion having a horizontal component disposed 75
2,109,064
above said means at an angle to the vertical
upon the path of movement of the gas and con
densate in said chamber, and means for directing
a moving stream of coolant against said wall for
the immediate absorption of latent heat given oir“
in the condensation of said gas.
10. In a d-evice- of the character described, the
combination with a heat exchanger including
chambers for condensate and for coolant having a
proximity to the portion of said wall portion
toward which such circulation occurs, whereby to
condense the condensable gases before they‘reach
said level.
13. In a device of the character described, the
combination of heat exchanging means providing
a coolant compartment and a condensate com
partment, the latter compartment being arranged
to retain non-condensable gases above the level
common partition wall adapted to be submerged
of condensate, and said compartments being pro
in condensate and coolant, of means for delivering
a condensable gas to a bottom portion rof the
condensate chamber below the normal level of
condensate therein, said wall being disposed ver
tically above said means in the path of said gas
and the condensate set in motion in the con
densate chamber by the admission of said gas,
an admission pipe for coolant communicating with
vided with a common partition wall, of means
the coolant chamber and provided with discharge
means submerged in the coolant in said chamber
and directed against said partition wall at the
point of contact of gas and coolant therewith for
the immediate absorption of latent heat given ofi
in the condensation of said gas, and discharge
means leading from said coolant chamber to ac
commodate a flow of coolant from said chamber
after its contact with said wall.
1l. In a device of the character described, the
combination with a heat exchanger including a
coolant chamber having a wall providing a cool
ing surface, admission and discharge means for
establishing a ñow of coolant through said cham
ber, the admission means being adapted to be
submerged in coolant and arranged to direct a
ñow of coolant against said wall, a circulatory
condensate system exposed to said surface in
heat transferring relation thereto, and means for
directing a condensable gas into said system in
a direction to establish circulation of condensate
4.0 therein flowing from the point of admission of
said gas toward said surface for the delivery
thereto of the latent heat given ciî in the con
densation of the gas entrained in the circulating
condensate in said system.
12. In a device of the character described, the
45
combination with a heat exchanger having com
partments for coolant and condensate, the latter
compartment having space above the level of con
forming a chamber separate from said compart
ments and provided with spaced passages com.
municating with the condensate compartment,
one of said passages leading toward a portion of
said Wall, and said wall portion intervening be
tween said last passage and said level, means in
cluding a pipe terminating in said separate cham
ber and directed toward said last mentioned pas
sage for delivering a condensable gas to said
chamber in. a direction to induce circulation
through said chamber, said passages, and said
condensate compartment in the direction of said
wall portion, whereby to condense the condensa
ble gas before it reaches said level to become .
commingled with non-condensable gases there
above.
14. In a device of the character described, the
combination with heat exchanging means pro
viding a coolant compartment and a condensate
compartment with a common partition wall, of
means forming a chamber separate from‘ said
compartment and provided with spaced passages
communicating with the condensate compart
ment, one of said passages leading toward a por
tion of said wall intervening between said last
passage and the level of condensate in said com
partment, means including a pipe terminating in
said separate chamber and directed toward said
last mentioned passage for delivering a condensa 40
ble gas to said chamber in a direction to induce
circulation through said chamber, said passages,
and said condensate compartment in the direc
tion of said wall portion, and means for circulat
ing coolant through the coolant compartment 45
and including a pipe for delivering coolant direct
ed toward the aforesaid wall portion.
15. In a device of the character described, the
densate therein to receive uncondensable gases,
combination with wall means forming a com~
said compartments having a common partition
wall portion below said level at an angle to the
vertical, of means forming a circulatory passage
communicating at spaced points with the com
partment for condensate, one of the points being
directly below said wall portion, means including
a pipe for delivering condensable gases to said
partment for condensate having a portion 50
adapted to be continuously submerged in con
passage in a direction to induce circulation in said
passage and the compartment for condensate to
Ward said partion wall portion, means for deliver
60
3
ing a coolant to the Compartment therefOI‘ in
densate in said compartment, and means for
directing a flow of coolant immediately upon said
wall portion, of means including a pipe for con
densable gases directed toward said wall portion 55
and terminating below the level of condensate
in said compartment for instituting a current
of condensate with said gases in the direction of
said wall portion.
FREDRICK GE'ITELMAN.
60
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