US1787389A - Liquid-delivering apparatus - Google Patents

Description

Dec. 30, 1930. R. MEIJER 1,787,389

LIQUID DELIVERING APPARATUS Filed Dec. 27. 1928 2 Sheets-Sheet l FigJ.

Dec. 30, 1930. R. MEIJER 1,787,389

LIQUID DELIVERING APPARATUS Filed Dec. 27, 1928 2 Sheets-Sheet 2 Fig.2.

Patented Dec. 30, 1930 UNITED STATES PATENT OFFICE REINIER MEIJ'ER, F VOORSCHOTEN, NETHERLANDS, ASSIGNOR TO DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ, OF THE HAGUE, NETHERLANDS, A COMPANY OF THE NETHERLANDS LIQUID-DELIVERIN G APPARATUS Application filed December 27, 1928, Serial No. 328,801, and in the Netherlands November 28, 1928.

deep wells, the use of a conventional float valve device has the inconvenience that, when the rate of feed is small, the valve remains poised in a slightly lifted position, whereby both the valve body and the valve seat are subject to rapid wear, especially when the liquid contains grit or like impurities. When worn out, the valve allows the liquid and eventually also air or gas to escape, which, however, it is exactly intended to prevent.

Said inconvenience is effectually met by my present apparatus in which a valve of novel construction is controlled in a special manner by a float.

In order that my invention may be well understood, I shall now proceed to describe the same with reference to the annexed drawing, on which Fig. 1 illustrates in a side elevational view a gas separator of ordinary construction as used for pretreating crude oil, associated with a delivering apparatus in accordance with my invention.

Fig. 2 is a vertical sectional elevation of the lower portion of said apparatus, on an on larged scale.

Figs. 8 and 4 are diagrams of two other embodiments of my invention.

Crude oil mixed with gas and grit flows into the gas separator 1 through a nozzle 2. In said separator, the gas is liberated so that it can escape through a nozzle 3 at the top, whereas the grit, settled to the bottom, is drained periodically. The oil, mixed with a certain amount of gas, flows through a pipe 4:,

a valve 9 and an inlet nozzle 11 into a float chamber 5, which by means of a pipe 6 is also in communication with the top of the separator 1. The float chamber delivers the oil and grit mixture through an outlet 12 and a valve into the discharge pipe 7. A byepass 8, connecting pipes 4e and 7, permits of the float valve apparatus being cut out when it should get out of order, in which case valves 9 and 10 are to be shut.

The float chamber 5 (Fig. 2) is provided, intermediate between its inlet 11 and its outlet 12, with a lift valve 13 cooperating with a seat 1 1. Said valve 13 is of annular formation and secured to a cylindrical hood 15 snugly fitting round a stationary cylindrical guide member 16. Said hood has secured thereto a guide ring 17 for the spindle 18 of a float 19, which in Fig. 2 is only partially shown and which is illustrated in dotted lines in Fig. 1. The lower part of the float spindle 18 carries an auxiliary valve 20 adapted to close a narrow passage 21 in the top of the hood 15. The chamber enclosed by the hood 15 and the guide member 16 communicates with the outlet nozzle 12 through passages 22 and 23 and a port 25 controlled by a needle valve 24.

The apparatus so far described operates as follows:

Vihen crude oil is supplied to the float chamber 5 through nozzle 11, the auxiliary valve 20, loaded by the full Weight of the float 19, still closes the passage 21, so that the relatively high oil pressure prevailing in the separator 1 is prevented from also setting up in the pressure chamber within the hood 15 and the guide member 16. As a consequence, valve 18 is forcibly pressed upon its seat 14 so that no oil can reach the outlet nozzle 12. hen the liquid within chamber 5 has risen to a predetermined level, the float 19 is lifted, whereby valve 20 unseats and oil is forced through passage 21 into the hood 15. The progressive upward pressure thus exerted on the hood will eventually exceed the clownward pressure, owing to the difference between the diameters of the guide member 16 and'the outer circumferential edge of valve 13. At this moment, "alve 13 unseats, thus allowing oil to be rapidly discharged and the surface of the oil to fall to a predetermined level, at which the float 19 again forces valve 20 onto its seat. The inflow of oil to the hood 15 is thereby interrupted, whereas the discharge of oil from the hood continues through the throttle port 25, so that valve 13 gradually moves to its seating position.

The speed of the seating movement of valve 13 can be manually adjusted by means of the needle valve 2 1. Said speed should preferably be so that the oil level falls with a greater speed than does the valve 13 with associate parts, i. e. hood 15 and float 18. Thereafter, when valve 13 has fallen into contact with its seat, the oil level-will first have to rise again in order that the float may reopen valve 20 and this reopening will take place earlier according as there is less air trapped in the hood, seeing that said air must I be compressed by the inflowing oil before the valve 13 can beunseated.

When valve 13 is seated, it is forced with considerable pressure onto its seat 14, so that grit that might have got between said parts will be crushed and a reliable seal is ensured. The valve body 13 and its seat 14 are hardened and mounted for easy renewal.

Obviously, I do not limit myself to the described apparatus, but conceive as within the scope of my invention any apparatus that fall within the scope of the claims, that may be ultimately allowed hereon. For instance, I may secure the hood to the wall of the'float chamber 5 and connect the guiding member 16 with the valve 13, which, in that case, should not be of annular formation, but solid. With said construction, valve 13 is normally opened by the liquid pressure and closed whenever the falling float opens the passage through which liquid is adapted to flow into the stationary hood. This and still another embodiment of my invention are shown, by way of example, in the diagrammatic Figures 3 and 4, respectively, and do not require to be explained in further detail.

What I claim is 1. In liquid delivering apparatus, a float chamber having an inlet and an outlet, an outlet valve, a float, a stationary cylindrical element, a cylindrical member secured to the outlet valve and adapted to telescope with respect to said element, a pressure chamber enclosed by said telescoping member and elelet, one of these passages being controlled by the float, and means for adjusting the eflective cross sectional area of the other of said passages.

3. In liquid delivering apparatus, a float chamber having an inlet and an outlet, an outlet valve, afloat, a stationary cylindrical element, a cylindrical member connected to the outlet valve and adapted to slide with respect to said element, a pressure chamber enclosed by said sliding member and element, a passage between the float chamber and said pressure chamber extending through a tubelike part of the wall of the said pressure chamber, a valve associated with the float and adapted to control said passage, another passage between the said pressure chamber and the said outlet, and means for adjusting the effective cross sectional area of the last said passage.

In testimony whereof I aiiiX my signature.

REINIER MEIJER.

ment, a passage between the float chamber v and said pressure chamber, a valve associated with the float and adapted to control said passage, another passage between thesaid pressure chamber and the said outlet, and means for adjusting the effective cross sectional area of the last said passage.

2. In liquid delivering apparatus, a float chamber having an inlet and an outlet, an outlet valve, a float, a stationary cylindrical element, a cylindrical member connected to the'outlet valve and adapted to slide with respect to said element, a pressure chamber enclosed by said sliding member and element, a passage between the float chamber and said pressure chamber, another passage between the said pressure chamber and the said out- 7

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