US1471737A - Automatic water drain for oil tanks - Google Patents

Description

A J. A. JOLLY I AUTOMATIC WATER DRAIN FOR OIL TANKS Filed Jan. 11. 1923 3 Sheets-Sheet 1 flkk f mvx wg A A @&.-23,'1923, 73335? 1 J. A. JOLLY AUTOMATIC WATERDRAIN FOR OIL TANKS Filed Jan. 11. 1925 5 sheets-sheet. 2i

ct. 23, 1923. 1,471,737 I J. A. JOLLY AUTOMATIC WATER DRAIN FOR OIL TANKS Filed Jan. 11. 1923 3 Sheets-Sheet 5 I tame be. 2a, 1923.

' STATES PA'Ts some Anna JOLLY, or LONG nnacu, surname.

AUTOMATIC WATER DRAIN FOR OIL TANKS.

Application filed January 11, 1923. Serial No. 611,983.

tanks, and has for its object to provide an automatically acting water drain for oil tanks.

As is well known water forms a constituent of the products of nearly all oil wells, and this water naturally settles to the bottom of the storage tanks containing the oil.

My present invention consists of means for automatically withdrawing the water from a tank.

Other objects and advantages will be made manifest in the following specification of an embodiment. of the invention illustrated in the accompanying drawings,

- 25 wherein- Figure 1 is a side elevation of a storage tank in which the invention is combined.

Fig. 2 is a vertical section of the water draining apparatus showing" the control 0 valve in closed position.

Fig. 3 is a similar section showing the? control valve in open position.

Fig. 4 is a section horizontally on the line l4ofFig.2. a

A storage tank T is here shown as provided with the usual main draining valve M for discharging the tank. A drain pipe D leads from the main valve M, and in my invention a drain pipe 2 is connected to the pipe D and is provided with an automatlc drain valve 3 from which leads ,a pipe 4 connectingto the drain pipe 13 which latter may beprovided withian intermediate valve 5. between the pipe connection 2 and the connection 4. The main valve M, in my invention, isnormally open and the intermediate valve 5 is closed: so that drainis automatically accomplished through the pipe 2 and the automatic drain valve 3.

closing ofthe automatic valve 3, this tter is connected by a link 6 to a float 7 which is operative in a float chamber 8 through the bottom of which the link 6 operates. The float chamber is substantially closed and has chamber 11 and after passin To accomplish the automatic opening and an overflow pipe 9 leading from its upper portion and a valved drain pipe 10.

Above the float chamber '8 is a controlling chamber 11 communicating with the I float. chamber 8 through a port 12 which is closable by a suitable valve 13. The valve 1s shown as of a needle or conical plug type and has a stem 14: to the upper end of which is connected a member 15 which is of such buoyancy as to float in water, but issulfieiently heavier than oil to prevent its ascending in oil. In other words, the specific gravity of the member 15 is less than that of water and is equal to or greater than thatof oil which is to-be stored in the tank T, so that the member 15 becomes a vfloat as to the water which passes into the control chamber 11 through a connecting pipe 16 leading to the lower portion of the tank so as'to transfer water W therefrom to the controlling chamber 11. The top of the controllin chamber is connected by an oil transfer plpe 17 leadin T at a level above in thetank T.

From the above it will be seen that in the absence of water to a predetermined level in the tank and controlling chamber 11, the valve 13 will be seated by its attached member 15 which, being heavier than the oil, will sink in the oil accumulated in the chamber '11. As water accumulatesjin the tank T it will rise to an equal level in the a predetermined level will lift the'r'elatlvely buoyant member 15, and this will operate to open the automatic'controlling valve 13. Tlie'opening of this valve results ,in the flow of water from the'controllingchamber 11 down into the float chamber 8 and the escaping water will accumulate in this chamber, with the result that the float 7 will be elevated,

Fromxthe above will be seen that I and the valve 3 will he; opened and water have provided a very simple, reliable and automatically operative means for substantially continuously draining water as it may accumulate in well storage tanks.

- t is understood that this apparatus may be utilized for draining any liquid substance where there are substances in a common vessel having different specific gravities.

Further embodiments, modifications and variations may be resorted to within the spirit of the invention as here claimed.

What is claimed is:

1. Apparatus for automatically substantially continuously draining water in tanks containing oil as the water separates from the oil, comprising a water chamber and float operated drain valve therein, and an 011 chamber having float means controlled by variation of waterlevel in the tank for con trolling the opening and closing of the drain containing oil as the water separates fromcontrolling the opening and closing of the valve.

2. Apparatus for automatically substantially continuously draining water in tanks the oil, comprising a float operated drain valve and a chamber therefor, and float means controlled by variation of water level in the tank for controlling flow of water to said chamber for the opening and closing of the drain valve, the said float means being disconnected from the drain valve.

3. Apparatus for automatically substantially continuously draining water in tanks containing oil as the water separates from the oil, comprising a water chamber and float operated drain valve therein, and an oil chamber having float means controlled by variation of water level in the tank for drain valve, the said float means being combined with and opening and closing a controlling valve in said oil chamber.

4. An apparatus for automatically drainingwater from an oil tank and comprising chamber, a valve inthe drain pipe, a float I in said chamber connected to said valve,- water controlled means for admitting water to the float chamber so as to 0 en the valve, said meansincluding a contro ing chamber connected to the tank so as to receive water and oil therefrom, and a valve device in the controlling chamber operativebythe accumulation of water to admit water to the float chamber.

6. In combination with an oil container,a controlling chamber having water and oil supply connections with the container whereby water may flow into the chamber to.-a level e ual to that in the container, a float controll the chamber, a float chamber to which the discharged water from the controllin' chamber passes, and a float in the float c amber connected to a drain'valve for controlling draining of water from the container.

In testimony whereof I have signed my name to this specification.

' JOHN ADAIR JOLLY.

ed valve for discharging water from

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