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Патент USA US2084287

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June _15, 1937.
w. J. HANDLEY
2,084,281
A'PPARATUS FOR-HEATING LIQUIDS WITH FLUID FUEL
Filed Aug. 29, 1955-
2 Sheets-Sheet 1
15559.5
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FLIIFIIII!
'
_
INVENTOR.
I
W/zL/mw J HQNDLEY
ATTORNEYS
_
June 15', 1937.
v
w. .1. HANDLEY
2,084,287
APPARATUS FOR HEATING LIQUIDS WITH FLUID‘ FUEL
Filed Aug.
gfé, 1935
2 Sheets-Sheet 2
’
ATTORNEYS
.' Patented June 15,. 1937
.
“
‘_
; 2,084,287
'. UNITED] STATES, ‘PATENT. . OFFICE
_
2,084,287
_
srraaarns roa
naarmci mourns wn'n
FLUID
William J. Handley,‘ Jackson, Mich,
r to
Handlcy Brown Heater‘ Company, Jacksom.
Mich” a corporation of Michigan
_ Application august 29; 1935, Serial No. saiis
'
15 Claims.
_(c|._v 122-14).
‘ This 'inventionrel'ates to a method of and ap
paratus .for heating liquids with ?uid fuel, and
. ,
, inexpensive heater unit and the manner of trans
5 ferring heat units to' liquid to be heated wh reby
high e?iciency-and ‘low gas consumption
ob
"
tained while at the same time eliminating con
densat'ion.
-
_
‘
_
' In the past, condensation haswbeen generally
10 looked at as-a necessary evil and in attempts to
- obtain efficient heatingand low gas consumption
moste?'orts have been directed towards special
.
_
?ue gases, thus greatly increasing its corrosive
quality.
has‘ to do particularly with an extremely simple, I
‘
_
,
~
In carrying out my invention I preferably uti
lize a low consumption burner and a relatively
large storage tank, the heat transfer-unit con- 5
sists of vertical ?ues, spaced from the surfaceof
the tank and enclosed within an insulating casing
strapped on to the cylindrical tank in such a
manner as to form an absorption chamber around
the ?ues. Decrease in transfer of heat units by 10
indirectheating instead of direct heating is com
pensated for by a reflecting surface forming a 4
designs of the liquid tank usually in connection Y part of said absorption chamber and 'by forming
I with the application of heat internally of the‘ the outer surface of the ?ues and 'e?ective surface
"15 mass of liquid to be heated; most of such struc
of the tank of roughened black surfaces. Other 15
‘ tures have been very, expensive. particularly as
- compared to the standard range boiler type of hot' ' features include structural details and other ar
water‘ heater. Some attempts have been made
‘towards inexpensiveconstruction in that auxil- .
iarylattachments have been provided ~for stand
20
ard range type boilers, but this has been usually
with a sacri?ce of efficiency and continued
troubles with condensation.
-
It is my belief that these efforts in the past
"2-5, have tackled liquid heating problems from the
wrong‘anglein that they: have, worked for in .
. creased e?lciency by specially designed heating,
tanks ‘and the like. The present .invention con
.mplates the use of. a simple cylindrical range V‘
rangements as will be more clearly set forth in
‘the speci?cation and claims.
In the drawings:
’
-
Fig. 1 is an elevation of a standardrange boiler 20
or domestic type of water tank.
'
Fig. 2 is'_ an assembly view of the insulating
casing, heating ‘unit, consisting of combustion
chamber, tubes and re?ecting surface—ready to
strap on the tank.
25 ‘
Fig. 3 is an elevation of the strap on assembly
and range boiler.
.
'
Fig. 4 is a sectionalvview taken on line 4-4 of
Fig.- 3 illustrating the relative spacing of the boil
encombustion chamber, ?ue tubes, re?ecting sur- 3°
face and'insulation, and illustrating particularly
storage tank for the liquid to be heated, and an '
formation of. the sealed absorption chamber.
important-feature of the present invention ‘is the1'18.
5 is a sgttional view taken on line 5—5 of
that while such ‘a simple inexpensive form of
4 showing the manner of securing the strap
‘a-dboilerf It starts with the most inexpensive form
-
and at the same’time the most sturdy form of
- as storage tank is used. I obtain an eihcieneycom
- parable to that of the most complicated and ex
pensive type of heater. -A second, and possibly
more important feature of the present invention
is that efhcient heating is obtained with inex
‘ 40 pensive equipment‘ and the heat transfer carried
out in such a manner that condensation is com
_,
'
pletelyeliminated.
.
>
' More speci?cally, ‘I have foimd that if heating
gases are applied on. the outside of a'storage tank
'45. and substantially all the heat units from such
on assembly to the water tank and the internal 3?
arrangement of the burner and combustion
Fig. 6 is a fragmentary perspective view show- '
ing the strap on assembly support secured to the
bottom of the-tank.
:10
A feature of the present invention is the fact
that one of the important elements thereof is a
standard domestic range or stand boiler as shown
at 2. This boiler is not only important in that p.
5
it vembodies strength and cheapness but also in
"gases applied indirectly instead of directly to that it presents an ideal surface for my indirect
such tank, I obtain the utmost e?llciency from non-‘condensation type of heating, as will be pres
" ' a;
heating gases and without creating. con ' ently described. In'carrying out this method of
' - densation. In ?uid fuel heaters of the prior art, heating, a vertical ‘portion of the range boiler 50
,-‘°---eondehtatioh has been oneof the most di?lcult
problems for the reason that heat, when directly
is painted black as 'at 8 and preferably roughened.
applied tojthe cold surface. deposits moisture
of the'tank, as best shown in Figs. 5 and 6, this
. * whichobstructs and corrodes the exposedparts:
moisture absorbs
elements from the
A clamp-on support! is-secured tothe bottom
support being providedqgfh a laterally extend
ing supporting surface 5 r receiving‘ a strap on‘ /55'
aowsr
.
.
-
'
»
/
assembly. Painting of the tank and‘ the clamping > 'ers of such construction that products of comw
in place of the supporting device 4 is all that is bustion are completely isolated so there could not
necessary to be done to the standard domestic possibly be any comingling of the moisture be
tank in preparing the ‘same for receiving the tween any moisture and such gases. The heat
ing of the tank is completely indirect, and by ra
strap on heating unit.
I
I
' _
This strap on heating unit may be generally diation, convection and re?ection; and as there
designated 6, and is best shown as a unit ready to is no direct application of heat to the tank at
any time, it i's'obvious'thatthere can be no con
be strapped on in Fig. 2. This-strap‘ on unit con
sists of a sheet of insulation 1 split as at’8.‘ It a densation because of any heat from the heating
unit; and inasmuch as the absorption chamber
10 may be molded to the general shape shown in
Fig. 4 or may be held in such general shape by is a dead air space, it will‘be seen'that condensa
clamping straps. The outer surface of the insula-I-I tion from any source will be prevented.
Ei?cient heating of the water in the tank 2 will
tion may be ornamental in appearance and the
‘ insulation heldas a jacket around the tank 2 by ' ?rst of all depend upon the quantity of water
15 a sheet metal shell held together at the split by and the rapidity of heating desired, one or a 15
suitable fastening means.
v
.Preferably secured to and forming a part of
the interior surface of the insulating jacket is a
plurality of tubes 20 may be used but in every
case all the products of combustion are con
ductedaway from the combustion chamber I6
mirror unit H, formed of polished metal and ' by. such fines and will more than compensate
20 preferably consisting of a front ?at ‘surface I2
.and two Iangularlyextending wing members i3.
When the insulating jacket is strapped into‘ place,
the wing membersiS are substantially normal to
and contact withthe arcuate'surface of the boil
25 er so as to form‘ an absorption chamber ‘which
may be'designated' I4.
I 'I
‘
'
.Also secured to the mirror'or re?ecting mem
ber II, by means of a’bolt i5, is a combustion
chamber l6, this combustion chamberbei'ng di
30
rectly supported by the ledgeli vof the support
for the indirect heating by the combination of
the re?ector surface and. the blackened surfaces
on the tubes and the portion of the tank utilized
to form one wall of‘. the absorption chamber.
Heat transfer from the tubes. to the tank will be
by radiation, re?ection and convection,‘ greatly.
assisted by the black surface of the ?ues and
the tank, and a portion'of the heat re?ected back
against the black surface of the tank‘ by the
re?ector l l. The size and number of tubes 20
are proportioned relative to the low consumption 30
burner unit and the rapidity of heating so that
practically all the heat vunits from the products
member 4,, thus, while the sheet metal 'shellor
strap members! would probably hold thein
sulatingI jacket and the strap on heating unit - ,of combustion are absorbed by the tank in the
as a whole in place, the main function of the
35 shell or strap members is to hold the insula
travel of such products of combustion from the
bottom to the top of‘ the ?ues.
'
Although the absorption chamber II is a dead
absorption chamber I I, and the entire/strap on~ air space, circulation of air will take place be
unit is mainly supported by the support member cause of the natural thermo-siphon action; fur
4; although it will be seen that if the support thermore, the ‘greatest transfer of heat units be
tion as a jacket around the boiler and form the
40 member should become loose the entire strap on
unit would still be heldin place. A layer I‘! of
high temperature asbestosis positioned behind
the reflector member ll.
As will be later ex
plained, the re?ector is the medium for effect
45 ing a great-amount of heat transfer, thus addi
tional insulation is provided for backing the re
?ector as well as the absorption chamber H as a
tween the absorption chamber and the tank will
take place at the localized point where there is
the greatest differential in temperature. Thus
if, for instance, sufficient hot water should be
used to set up a band of cold water at the bot
tom of the tank, it will be seen that the great-_ 45
est transfer of heat units between the absorp
tion chamber i4 and the tank will be at ‘such
band of cold water; or if all the water in the
whole.
‘
A burner box I8 is carried by the combustion I tank is substantially the same temperature, the
chamber 16, and preferably contains a low con ‘ transfer of heat units will ‘be evenly distributed
between the absorption‘ chamber and the sur
sumption burner unit l9. A standard thermo
face
of the tank.
stat (not shown) may be used to control the
As an illustration of the importance of the
?ow of gas to the burner uni't l9, so'that the
blackened surfaces of the tank, the tubes, and
?ame issuing from the burner and into the com
the re?ector surface, complete tests made on the» 55
bustion
chamber
may
be
relatively
low
or
a
55
pilot ?ame, once the tank of water reaches a same tank and the same strap on heating unit,
predetermined temperature, or may be 'in wide one with the blackened surfaces of the tank, the
open full position, but ‘still low‘ consumption. blackenedsurfaces of the‘ tubes and a re?ector
Flue tubes "extend from the top of the com-, surface, and the other without these blackened ‘
surfaces and without the re?ector surface, showed 60
bustion chamber, -, vertically through the ‘ab
60
sorption chamber H, and out through the top, a 22% saving in gas consumption of the ?rst
as best shown in Figs. 2 and 3. Top and bottom set up over the second.
plate members 2| preferably seal the heating
chamber at-the top and bottom, respectively, ‘so
that the heating chamber‘ ll is substantially a
After strapping on the unit.
any cracks or openings between the plates may
be sealed. The outside surface of the tubes 20
65 dead air space.
. are roughened ‘and black.
Thus the roughened _
It will‘ be understood that the combustion
chamber may be of any type, size or shape as long
as the main transfer of heat units is indirect;
also that the strap on unit is particularly im- - 6.5
portant for strapping on to and converting old
boilers into e?icient heating units.
.What I ‘claim is:
‘
'
I
1. Conversion water heating apparatus for do 70
70 dark surfaces of the ?ue tubes lose 'or' transfer ' mestic range vboilers, comprising an insulating
heat‘ faster by radiation while the blacklsurface means surrounding at least apart of the boiler,
a portion of the insulating‘ means being spaced
light smooth surface.
'
.
I I
.. I
It will} thus be‘seen that I'have provided .a from the boiler to form an absorption chamber,
. of the tank absorbs heat faster than a relatively
strap on heating unit, for new orold range jboil
?uid fuel combustion means positioned adiacent 75
2,084,287
the bottom of said absorption chamber, .one or
more ?ues conducting the products of combustion
from said combustion means ,up. through said
' absorption ‘chamber, said- ?ue or ?ues being
and the adjacent surface of said tank being black- ,
spaced from the tank whereby the application
of heat between the source of heat and the tank
‘mod to assist in' the radiation and absorption of
is indirect.
6. Conversion water heating apparatus‘for do
mestic stand boilers‘, comprising an insulating
~
2. Conversion water heating apparatus for do
mestic range boilers, ‘comprising. an insulating
10 means surrounding at least a part of the boiler,
means extending along an outer wall of and be
ing spaced from the boiler to form an absorption
chamber, ?uid fuel combustion means positioned
16
around said conduits, a portion of the wall of said
absorption, chamber consisting. of a re?ecting
surface, the surfaces of said conduit or conduits
adjacent the bottom of said absorption chamber,
one or more ?ues conducting the products of
combustion from said combustion means up
through said absorption chamber, said ?ue or
'?ues being spaced from the tank whereby the
application of heat between the source of heat
20 and the tank is indirect, the top and bottom of
said absorption chamber being substantially
sealed whereby to form asubstantial dead-air
space around said ?ues.
3. Conversion water heating apparatus for do
25 mestic range boilers, comprising an insulating
means surrounding at least a part of the boiler,
means extending along-an outer wall of and being
spaced from the boiler to form an absorption
chamber, ?uid fuel combustion means positioned
30 adjacent the bottom of said absorption chamber,
one or more ?ues conducting the products of
combustion from said combustion means up
- through said absorption chamber, said ?ue or
heat units.
.
means surrounding at least a part of the‘boiler.
means extending along an ‘outer wall of and 10
being spaced from the boiler to form an absorp
tion chamber, ?uid fuel combustion means posi
tioned adjacent the bottom of said absorption
chamber, one or more conduits conducting the
products of combustion from said combustion 15
means up through said absorption chamber, said
conduit or conduits being spaced from the tank
whereby the application of heat between the
source of heat and the tank is indirect, the top
and bottom of said absorption chamber being .20
substantially sealed whereby to form a substan
tial dead air space around said conduits, a por—
tion of the wall of said absorption chamber con
sisting of a re?ecting surface, the surface of said
tank adjacent said conduits being blackened.
25
7. Conversion water heating apparatus for do
mestic sand boilers, comprising an insulating
means surrounding at least a part of: the boiler, ,
means extending along an outer wall of and being
spaced from the boiler to form an absorption 30 Y
chamber, ?uid fuel combustion means positioned
adjacent the bottom of said absorption chamber,
one or more conduits conducting the products of
?ues being spaced from the tank whereby the combustion from said combustion means up
35 application of heat between the source of heat through said absorption chamber, said conduit
and the tank is indirect, the top and bottom of ' or conduits being spaced from the tank whereby
said absorption chamber being substantially the application of heat between the source oi‘
sealed whereby to form a substantial dead air heat and the tank is indirect, the top and bottom
space around said ?ues,_a portion of the wall of of said absorption chamber being substantially
40 said absorption chamber consisting of a re?ect
sealed whereby to form a substantial dead air 40
ing surface.
space around said conduits, a portion of the wall
4. Conversion water heating apparatus for do
of said absorption chamber consisting of a re
mestic range boilers, comprising an insulating ?eeting surface, the surface of said conduit or
means surrounding at least apart of the boiler, conduits being rough and black to assist in the
45 a portion of the insulating means being spaced radiation of heat units therefrom.
45
from the boiler to form an. absorption chamber,
8. A water heating apparatus of the storage,
?uid fuel combustion means positioned adjacent continuous supply type, comprising a storage
the bottom of_ said absorption chamber, oneor tank and a heating unit comprising one'or more
more, conduits conducting the‘, products of come, conduits spaced from the tank and enclosing and
'bustion from said combustion means up through conducting heating gases along the outside of said 50
said absorption chamber, said conduit or con
tank whereby the transfer of heat units from
‘duits being spaced from the. tank whereby the the heating gases to the tank is indirect, means
application of heat between the source‘ of heat for directing heat units radiated from said con
and the tank is indirect, the top and bottom of ‘
ducting means in a direction other than towards
55 said
absorption chamber being substantially ' the tank back against the tank, said last named
55
sealed whereby to form a substantial dead air
means cooperating with a portion of said tank
space around said conduits, the surfaces of said ‘to form an absorption chamber enclosing said
conduit or conduits and the adjacent surface of conduit or conduits, and an insulating jacket
' , said tank being blackened to assist in the radia
surrounding
60 tion and absorption of heat units.
clamped around said tank.
said
absorption
chamber
and
'
5. Conversion water heating apparatus for do
9. A water heating apparatus of the storage,
mestic range boilers, comprising an insulating vcontinuous supply type, comprising a storage
means surrounding at least a part of the boiler,
a portion of the insulatingmeans being spaced
65 from the boiler to form an absorption chamber,
?uid fuel combustion means positioned adjacent
the bottom of said absorption chamber, one or
more conduits conducting the products of com
- bustion from said combustion means up through
70 said absorption chamber, said conduit or conduits
being spaced from the tank whereby the applica
tion of heat between the source of heat and the
tank is indirect, the top andbottom of said ab
sorption chamber being substantially sealed
60
tank and a heating unit comprising one or more
conduits spaced from the tank and enclosing and
conducting heating gases along the outside of said
tank whereby the transfer of heat units from
the heating gases to the ‘tank is indirect, means
for directing heat units radiated from said con
ducting means in a direction other than towards
the tank back against the tank, said last named 70
means cooperating with a portion of said tank
to form an absorption chamber enclosing said‘
conduit or conduits, said absorption chamber be
ing substantially sealed from the atmosphere to
75 whereby 'to form a substantial dead air’ space _ form a dead air space wherebytransfer of heat 75 '
4
- 2,084,287
units from the absorption chamber to the tank
will take place at a point or points of greatest
temperature differential‘ between the tank and
the absorption chamber, and an insulating jacket
surrounding said absorption chamber and
vclamped around said tank.
,10. A water heating apparatus comprising a
container'dosigned to hold a relatively large sup
ply' of water, a small consumption burner and a
combustion chamber therefor positioned adjacent
a vwall of the container, one or more conduits
forming a continuation of said combustion cham
ber and extending alongside of but spaced from
the wall-of said container whereby the transfer
of heat units'from the conduit or conduits to the
_ container is indirect, means surrounding said
conduit or conduits and provided with a re?ector
surface for redirecting heat units radiated from
said conduit or conduits back against the sur
face of the tank.
11. A water heating apparatus comprising a
container designed to-hold a relatively large sup
" ply of water, a smallconsumption burner and a ,
combustion chamber therefor positioned adjacent
25 a wall of the container, one or more conduits
forming a continuation of said combustion cham
ber and extending alongside of but spaced from
domestic storage tanks, comprising insulating
means surrounding at least‘ a part of the tank,
oneor more conduits extending along side of but
spaced from an outer wall of said tank, metallic
enclosing means surrounding said conduit or con
duits and having the ends thereof contacting with
the tank and forming an absorption chamber,
and ?uid fuel combustion means positioned ad;
jacent the bottom of the absorption chamber and
so positioned that the products of combustion 10
are conducted upwardly through said conduit or
conduits, the transfer of heat units from the
conduit or conduits to thetank being indirect.
- 14. A water heating?’ apparatus of the storage
continuous supply type, comprising a storage 15
tank adapted to contain water- and a heating
unit positioned along a wall of said tank, ?uid
fuel combustion means positioned adjacent the
bottom ofsaid heating unit, one or more con
duits positioned within said heating unit and 20
spaced away from the wall of the tank, the ?uid
fuel combustion means being so located that the
products of combustion thereof are conducted up
wardly inside of said conduit or conduits where
by the transfer of heat units from the heating 25
means to the tank is indirect, said heating unit
cooperating with a wall of the tank to form an
.the wall of ‘said container whereby the transfer ‘ absorption chamber, said absorption chamber be
of heat units from the conduit or conduits to ‘the ing substantially sealed from the atmosphere to
80 container is indirect, means surrounding said form a dead air space whereby transfer of heat 30
conduit or conduits and provided with a re?ector ‘ units from the‘ absorption chamber to the tank
surface for redirecting heat units radiated from will take place at a point or points oflgreatest
said conduit or‘ conduits back against the surface temperature differential between the tank and
.
of~the tank, means clamped to the bottom of the the absorption chamber.
tank and supporting'said'combustion chamber.
and conduit or conduits, and insulating means
enclosing said conduit or conduits and the tank.
12. Conversion water heating apparatus for do
mestic storage tanks, comprising insulating
means surrounding at least a part of the tank, one
or more conduits extending along side of but
' spaced from an-outer wall of said tank? metallic
enclosing means‘surrounding said conduit or con-.
duits and forming an absorption chamber, and
?uid fuel combustion‘means positioned adjacent
the bottom of the absorption- chamber and so
15. A strap-on heating unit for water storage 35
‘tanks and the like comprising, one or more con
duits adapted to be positioned adjacent an outer
wall of the tank, ?uid fuel combustion means so
positioned adjacent the bottom of said conduit or
conduits that the products of combustion-are con 40
ducted upwardly inside of said conduit or con
duits whereby the transfer‘ of heat units to the
water in the tank is indirect, a metal enclosing
member for said conduit orconduits having side
portions adapted to contact with, the walls of
the tank whereby to form a chamber around, said
positioned'that the products of combustion are
conduit or conduits, and an insulated cover mem
conducted upwardlyrthrough said conduit or con
ber adapted to be strapped around said metallic
enclosing member and the water tank.
‘ .. duits,‘the transfer of heat units from the conduit ‘
50 or conduits to the tank being indirect.
i3. Conversiorr water heating apparatus for
a
50'
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