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Патент USA US2119652

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June 7, 1938.
J‘ M 5H|MER
2,119,652
FEED WATER HEATER
Filed July 11, 1935,
L.
3 Sheets-Sheet l
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7
INVENTOR.
afo/wv MASH/M56’.
ATTORNEYS
June 7, 1938.
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, J. M. SHIMER
2,119,652
FEED WATER HEATER
Filed July 11, 1935
5 Sheets-Sheet 2
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INVENTOR.
B yaw MJH/ME/F.
ATTORNEYS
June 7_, 1938.
J. M. SHIMER
‘2,119,652
FEED WATER HEATER
> ‘Filed July 11, 1935
3 Sheets-Sheet 3
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INVENTOR.
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ATTORNEYS
2,119,652
Patented June 7, 1938
UNITED STATES PATENT. .OFVFICE'
7
2,119,652
‘FEED WATER, HEATER
John M. .Shimer, Dallas, Tex., assignor to Oil
Well Supply Company, Dallas, Tex., a corpora
tion of New Jersey
Application July 11, 1935, Serial No. 30,909
1 Claim. (Cl. 261-34)
In the speci?c embodiment illustrated in the
My present invention relates to apparatus for
accompanying drawings steam, which may be ex
heating feed water for boilers by means of ex
haust steam, and is an improvement on my Pat
ent No. 1,964,710 of June 26, 1934.
In the feed water heater of the above patent,
cold water was supplied by a pump to a heating
chamber into which the exhaust steam was ad—
mitted for contact with the water, and the
amount of water admitted to this heating cham
ber was controlled by a ?oat valve. When the
level of the Water in the heating chamber rose
to a predetermined limit, the admission of cold
water was closed and the pump was‘ stopped by
the stopping of the flow of water therefrom. Al
though the pump was stopped, a full head of
steam was applied at all times to the pump. ‘This
resulted in considerable waste of steam, and in
1
other disadvantages.
These disadvantages are obviated by my pres
ent
invention in which when the level of water
20
in the heating chamber rises to a predetermined
limit it acts to shut off the supply of power to
the cold water feed pump, thus avoiding Waste
of power and also avoiding maintenance of pres
25
sure on the line to the heating chamber.
The various features of the invention are illus
trated, by way of example, in the accompanying
drawings, in which
Fig. 1 is a side view of a heating chamber and
30 of a pump and power driving means therefor em
40
45
50
55
of a deflector l2 and a ba?le l3 across the upper
5
end of the heating chamber so as .to be brought
into contact with water‘ sprayed downwardly
from an inlet valve l4.
Any water that may be
formed in the inlet pipe 10 by condensation of
steam may pass through an opening 15 in the 10
de?ector l2 downwardly over the baffle l3.
Water is supplied to the inlet valve M from
any suitable source by means of a pump 16 driven
by a suitable power such as the reciprocating
steam engine 11. Water is drawn into the pump 15
through an inlet pipe 18 and is forced from op
posite ends of the pump into a pipe l9 and thence
through a passage 20 extending upwardly and
over the top of the chamber II. From the pas
sage 20 water passes in an expanding annular 20
stream or spray through the valve I4, which is
an inwardly opening spring operated check valve.
The water thus sprayed into the heating chamber
ll comes into direct contact with the steam ad
mitted through the pipe 10 and is thereby heated.
5
The heated water collects in a pool or mass 2| in
the lower part of the heating chamber H from’
whence it is withdrawn through an outlet pipe 22 v
to a force pump 23 which supplies the heated wa 30
ter to a boiler. Steam is supplied for driving the‘
engine I1 from a supply pipe 24 through a shut
Fig. 2 is an end view of the pump taken from off valve 25 in a branch pipe 26 which also con
the left of Fig. 1.
tains a control valve 21. From the control valve
Fig. 3 is a vertical sectional view on line 3-3
21 the steam passes through a pipe 28 and shut
of Fig. 1 through the heating chamber.
o? valve 29 to the steam cylinder of the engine l1.
Fig. 4 is a plan view of the heating chamber Exhaust steam from the engine 11 as well as that
and steam supply to the pump driving engine or from an engine 3|] for driving the feed water
power, and
pump 23 returns through an exhaust pipe 31 to
Fig. 5 is a vertical view of the heating cham
the steam supply pipe ID.
ber taken on line 5—5 of Fig. 1.
The control valve 21 is actuated or controlled‘
In my invention steam is admitted to the heat
by the level of water in the heating chamber ll
ing chamber and water is sprayed through the through a ?oat 32. The ?oat 32 rises and falls
steam until it accumulates to a predetermined" with changes in the level of heated water in the
level. Water is supplied to the heating chamber chamber II. ‘This motion is transmitted by a
by a pump driven by suitable power means as, for
crank arm 33 secured to the ?oat to a rock shaft
example, a reciprocating steam engine. Whenv 34 which extends through a stuffing box 35 in the
water accumulates to a predetermined level in the wall of the chamber. The movements of the rock
heating chamber it lifts a ?oat which, in turn, shaft 34 are transmitted through a lever 36 out
interrupts the supply of power or steam to the
side of the chamber II, and a link 31 to a‘ lever 50
pump driving engine. Thereupon the pump stops 38 pivoted by a link 39 to the lower end of the
and no further water is supplied to the heating valve 21. Movement is transmitted from the
chamber until suf?cient water is removed to low— lever 38 through a valve stem 40 to a valve piston
er the level, whereupon the pump again supplies 4| in the valve 21. As the ?oat 32 rises, it lifts
water to the chamber until the ?oat is again lift
the levers 36 and 38 and forces the valve piston
bodying a preferred form of the invention.
35
haust steam, is supplied from a supply pipe H]
to a heating chamber I I. It is directed by means
ed to its predetermined level.
2,119,652‘
'4l upwardly to restrict or interrupt the ?ow of
steam through the valve'21'to the engine IT. AS
:" p 1 g
What I claim is—
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Apparatus for supplying heated water which
comprises'a feedwater heater‘ having a steam ad- > 7‘
water’ is withdrawn from the chamber II the
?oat 32 falls, lowering the levers 36 and 38 and'
mission pipe, a steamiactuatedeold water pump 7
the valve' piston 4| and opens’ the valve for in
creased ?ow of steam to the engine [1. A by-pass ' for pumping cold water into the heater, means
to divide said cold water as it enters said heater
pipe 42 and a control valve 43 enable the control
' valve’ 21 to be'by-pass'ed and steam to be admitted
into intimate contact with steam admitted there- a
to heat said water, a steamactuated hot wadirectly from'ithe supply pipe a?to the 'engine’l]. a ' into
ter pump fofpumpihg
'hot water'frr'om the heater,
'I'hepumps [Band 1213 andethe-engines if‘! and a
V
' V
30 are mounted on ‘a common'pair of' skids 44 'each= pump having a steam'cyllnder. and a pump
in a compact unitary structure, but it will be tin; ling cylinder, manually actuated means for con-"
1
the admission of’ steam to the steam'cyl
derstood' that any other suitable mounting» may ~ i trolling
inder-oflthe hot water pump,;means separate and
7 ‘be employed and’that other pump ‘constructions
‘individual of said manual means'for controlling
thannthat speci?cally illustrated may’ be~:em-‘ “the
steam supplyijto the steam cylinder of the
' ployed,
water pump, said meanslcomprising a, steam
‘It will be‘underst'ood' thatjthe engine I717 is a J -~cold
supply'valve subject continuously to full pressure
'7 small diameter engine as but little power is're
steam, a ‘?oatin said feedwater heater to open
quired to pump the water into the heating‘ cham
20 her ‘I I'.
said’ valve when the water level therein falls be
By controlling the supply of power to
low a predetermined level and to close it when
_from.un_derjfull power, waste of power’ is avoided .the water level “rises above-Vav (predetermined level,
the pump I 1 instead’ of ,controllingthe how there
‘ ' a 'and ,aIsQthe‘ loading of the pump 16 and, the, pip
ing from this pump to the heating- chamber with
an?excess of power ibyl-stoppingr the supply of
water is avoided: and the operation of-thera'ppara
fanda manually actuated throttle connected in
parallel to said ?oat ‘operated valve for independ
ent and conjunctive 'rcontrol of the-admission of
Vsteamitothe steam end ofjsaidcold water pump
icylinder.
Vtus'thereby improved. .7
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JOHN 7M. 'SHIMER.
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