US1252592A - Heat-conserving apparatus. - Google Patents

Description

L. D. LOVEKIN.

.HEAT CONSERVING APPARATUS. APPLICATION HLED JUNE 15. I915. RENEWED NOV. 26.1917.

Patnted Jan. 8

H/S ATTORNEY /N FACT Application filed June 15, 1915, Serial No. 34,205.

LUTHER D. LOVEKIN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO WESTING- HOUSE ELEGTRIC & MANUFACTURING COMPANY, A CORPORATION OF PENNSYL- VANIA.

HEAT-CONSERVING APPARATUS.

To all whom it may concern Be-it known that I, LUTHER D. LovnKIN, a citizen of the United States, and a' resident of Overbrook, Philadelphia, in the county of Philadelphia and State of Pennsylvania, have made a new and useful Invention in Heat-Conserving Apparatus, of which the following is a specification.

This invention relates broadly to conservation of heat and has for an object to provide means for conserving the heat withdrawn from a condenser by the removal of the water of condensation and the air or non-condensable vapors from the condenser.

A further object is to produce an organized apparatus for conserving the heat contained in the water of condensation and the air and'non-condensable gases withdrawn from a condenser, for conserving the heat contained in the steam exhausted from the ejecting apparatus employed for withdrawing the air and non-condensable gase and for separating the air and non-condensable gases from the water contained within the apparatus.

A further object is to produce a feed water heater to which the water of condensation and the air or non-condensable gases withdrawn from a condenser are delivered, and in which means are employed for separating the air and non-condensable gases from the water within the heater.

A further object is to produce a feed water heater adapted to receive the water of condensation withdrawn from a condenser and the steam exhausted from an ejector or other apparatus employed for evacuating the condenser, in which means are employed for eliminating the noise ordinarily occasioned by mixing steam and water.

These and other objects are attained by means of apparatus embodying the features herein described and illustrated in the drawings accompanying and forming a part hereof.

In the drawings, Figure 1 is a side elevation of apparatus embodying my invention, a portion of the apparatus being shown in section for convenience of illustration.

Fig. 2 is a sectional view along the'line 2-2 of Fig. 1. v

The illustrated embodiment of my invention includes a condenser 3, which may be 0f any'type, an ejecting device 5 for'withdrawing air or non-condensable gases from Specification of Letters Patent.

Patented Jan. 8, me.

Renewed November 26, 191?. Serial No. 204,098.

The water inlet port 8 is preferably located in the top of the casing, and a tray or trough 12 is so located in the top of the casing as to receive the Water entering the heater through the port 8. As shown in the drawings, the trough extends partially across the casing, is located immediately above the heating fluid inlet port 11 and is so arranged within the casing that it in effect incloses the water inlet port 8 and shuts ofl direct communication between that port and the port 11. The sides of the trough 12 abut against and may be formed integrally with the top of the casing 7 but the trough is so located with reference to the air vent port 9 that this port is in free and open communication with the major portion of the interior of the casing 7. The lateral Walls of the trough are extended downwardly below the bottom of the trough in the form of depending flanges 13, which in effect form a fluid passage within the heater with which the fluid inlet port 11 communicates. The end wall of the trough is also extended downwardly to form a depending flange 14, which is shown integrally formed with the flanges 13 and forms the end partition forthe fluid passage formed by the flanges 13 and at thesame time forms a baflle between the port 11 and the air vent port 9. The flanges 13 and 14 terminate at a point well above the normal water level within the heater and the fluid passage or chamber formed by them is open throughout its entire length and consequently is in communication with the interior of the casing and withthe vent port 9.

The bottom of the trough is provided with a plurality of apertures 15, through which water delivered to the heater through the port. 8 passes'in jets in the form of thin sheets or streams. into the heater proper, as is clearly shown by the dotted lines in Figs. 1 and 2. These thin sheets or streams of water fall through the passage formed by the flanges 13 and 14 and consequently subject the fluid entering the port 11 to the condensing action of the water and, vice versa, the water entering the heater is subjected to the heating action of the fluids entering the port 11.

Air vent ports or apertures 16 are shown formed in the end wall and the trough 12 above the normal water level of the trough and, as illustrated, these ports are in substantially direct communication with the vent port 9 of the casing 7.

The ejecting device 5 is illustrated as a steam actuated ejector which receives steam through a pipe 17, and the inlet of which is placed in communication with the air oiftake of the condenser 3 by means of a pipe or passage 18. The exhaust or dischargeend of the ejector is shown directly connected to the port 11, so that the steam and air or non-condensable gases discharged therefrom are delivered to the heater. It will, however, be understood that additional steam from any source as for example the steam exhausted from the auxiliaries.may, and under ordinary conditions will be delivered to the heater'through the port 11 and that therefore some means, such as a branch pipe may be provided for delivering this additional steam to the heater. I

In the drawings I have diagrammatically illustrated a pump 6 for withdrawing the water of condensation from the condenser. The'suction of this pump is shown communicating with the condensate discharge port of the condenser 3 through a pipe or passage 19, and thedischarge of the pump is shown communicating with the inlet port 8 of the heater 4 through a pipe or passage 20, it being understood that means, such as abranch pipe, may be provided for admitting an augmenting supply of water to the heater through the port 8.

The operation of the apparatus is as follows: The water of condensation withdrawn from the condenser 3 is delivered through the port 8 to the trough 12. The air and non-condensable gases separated from this water, as it enters the casing 7 and after it has come to rest in the trough 12, are vented through the aperture 16 and port 9 to the atmosphere. As the water flows through the apertures 15, formed in the bottom of the trough, it is divided into thin sheets or streams and is consequently effectively mixed with the heating fluid entering the port 11. This causes a further and in fact a complete separation of the air and non-condensable gases from the water and at the same time heats the water. The steam entering the heater through the port 11 is condensed by the shower of water issuing from the apertures 15 while the air or non-condensable gas entering through the port 11 gives up its heat to the water and passes to the atmosphere through the vent port 9. In this way the heat transferred from the fluid entering the port 11 to the liquid introduced into the heater is accomplished in the most effective manner, since the water is broken up into thin sheets or streams, or into a mass of separate drops and is therefore intimately mixed with the heating fluid. Thismixing of the heating fluid and the water is however a noiseless process and consequently there is no need for providing noise eliminating apparatus, such as is necessarily employed when live steam is mixed with a body of water.

The water is withdrawn from the heater through the port 10 and may be delivered directly to the boiler or steam generator, since it is free from air. In marine installations the lower portion of the heater may be provided with plates or bafiies for preventing the water from swirling and the heater may be employed in replacing both the ordinary forms of water heaters and the air separating devices now employed.

In accordance with the United States patent statutes I have described What I now consider to be the preferred embodiment of my invention, but I desire it to be understood that various changes, modifications, substitutions, additions and omissions may be made in the apparatus illustrated without departing from the spirit and scope of my invention as set forth by the appended claims.

What I claim is:

1. A combined feed water heater and air separator, comprising a receptacle having a water inlet port, a heating fluid inlet port, an air vent port, and a water delivery port, a trough for receiving the water entering the inlet port provided with means for delivering the water in the form of jets through the stream of heating fluid entering the receptacle through the heating fluid inlet port, and battles located within the receptacle between the heating fluid inlet and the air vent ports forming a chamber open at the bottom.

2. A combined feed water heater and air separator, comprising a receptacle having a fluid inlet port, a water inlet port, an air vent port and a water delivery port, means aaeaeea prising the combination of a condenser, a

feed water heater provided with an air vent port and a fluid inlet port, a steam actuated ejector for withdrawing air or non-condensable fluid from the condenser, having its discharge port in communication with the fluid inlet port of the heater, means for withdrawing water of condensation from the condenser and for delivering it to the heater, and a trough located within the heater and communicating with the vent port for bringing the water delivered thereto to rest and for delivering it in jets through the stream of fluid entering the heater through the fluid inlet port of the heater, and baffles depending from the trough and surrounding the fluid inlet port for preventing the escape of any condensable vapors from the heater.

4. A combined feed water heater and air separator comprising a receptacle having a water inlet port, a heating fluid inlet port, an air vent port, and a Water delivery port, a trough for receiving the water entering the water inlet port provided with means for delivering the water in the form of jets through the stream of heating fluid entering the heater through the heating fluid inlet port, and baflies depending from the trough and surrounding the heating fluid inlet port.

5. A combined feed water heater and air separator comprising a receptacle having a water inlet port, a heating fluid inlet port, an air vent port, and a waterdelivery port, a trough for receiving the water entering the water inlet port provided with means for delivering the water in the form of jets through the stream of heating fluid entering the heater through the fluid inlet port, baflles surrounding the trough having air vent ports, and depending baflies forming a chamber around the heating fluid inlet port, said chamber being open at the bottom and having the trough for a top.

In testimony whereof, I have hereunto subscribed my name this twelfth day of June, 1915.

- LUTHER D. LUVEKIN. Witnesses:

G. L. KOTHNY, H. T. HETH.

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