Патент USA US2089741код для вставки
Aug. 10,1931 J, A, GAMES 2,089,741 VALVE AS sEMBLlY Filed July 27, 1936 0‘ 20 772 \P7 _ ‘: ~ I 'RJ: /7\ -/2“ ' ' _ Z ' 2/ _ ,5 , l “3' I Inventor 1f (4- G‘arnes ZK ,7 /4 ’ " I By 2mm Atiomgys 'Patented Aug. 170, 1937 2,089,741 UNITED STATES PATENT OFFICE 2,089,741 VALVE ASSEMBLY James A. Gaines, County Line, Okla. Application July 27, 1936, Serial No. 92,863 5 Claims. (Cl. 137-68) This invention relates to new and useful im - pump at the gathering station produces a vacuum provements in a special type of ?oat valve for on the entire system, and as long as all the tanks have sufficient oil in them to prevent air entering oil ?eld piping. The principal object of the present invention the main line, the suction pump will produce a 5 is to provide a valve especially adapted for use vacuum and pull the oil from the tanks into the in oil gathering systems. In these types of sys gathering station. However, some of these tanks empty quicker than others and allow air to tems there are a number of tanks, some of vary ing capacities, all connected up by piping to the enter the lines which breaks the vacuum and the e?iciency of the suction pump is reduced. Some gathering station which employs a suction pump. 10 Another important object of the invention is of these tanks are located as far as ?ve miles to provide a ?oat valve for oil gathering systems from the gathering station, while others are which will effectively serve to close off the branch closer. The valve functions in the following manner: pipes to the tanks as the tanks become empty, Assuming the valve assembly in closed condi so that air will not get into the pipe system. 15 Other important objects and advantages of the tion as a result of a previous pumping opera invention will become apparent to the reader of tion, the status of the several elements of the the following speci?cation. assembly will be as follows: In the drawing: Valve I‘! will be closed and chamber I2 will Figure 1 represents a perspective view of the be partially ?lled with air admitted in the pre ceding operation. Valves 25 and III will be 20 valve structure and associated mechanism con closed. Valve 9 may be open or closed. Gener nected with a tank. Figure 2 is a vertical sectional view through the ally valve 9 is left open until it again becomes necessary to pump liquid from tank 5. With ?oat valve. Referring to the drawing, wherein like num valves Ill and I‘! closed, pipe 6 on the outlet side of valve shell I5 will be under vacuum from the ‘25 erals designate like parts, it can be seen that numeral 5 represents a tank which is connected distant pump station, and that portion of pipe I by the branch pipe 6 to the main trunk line (not 6 between valve 9 and valve I‘! will remain under vacuum regardless of whether valve 9 is open or shown) to the gathering station. Numeral ‘I generally refers to the valve structure which is closed. To open valve I‘! in order that liquid may be 30 installed in the branch line 6 and around which drawn from tank 5 through pipe 6 by the suc 'is the by-pass 8. In the branch pipe 6 on the outlet side of the by-pass 8 is the valve 9, while in tion pumps connected thereto beyond valve 9, the by-pass 8 is the valve III. The branch pipe valve 9 is closed and stop II opened. This will 6 adjacent the tank 5 is provided with a cut-off permit liquid to ?ow through 6 and I5 and enter the ?oat chamber. Valve 25 is opened venting 35 II. The ?oat valve structure consists of the small the trapped air from chamber I2 until the ap tank I2 bolted as at I3 to the base plate I4 on the pearance of liquid at vent 24 indicates that cham valve shell I5 to which the end portions of the ber I2 has been ?lled with liquid, whereupon sections of the branch pipe 6 connect. The valve 25 will be closed. Filling of chamber I2 40 valve shell I5 has the seat I6 therein against with liquid will not alone cause ?oat 2I to rise which the valve element I1 is seatable, the valve and open valve IT, for at this point a vacuum element I7 having an elongated stem I8 extend will still exist in pipe 6 between valve 9 and valve ing through the open spider I9 in the shell I5. I1 and generally this vacuum is too great to- be The upper end of the stem I8 passes through the overcome by the buoyancy of ?oat 2I in the liquid 45 spider 20 in the upper portion of the tank I2 and in chamber I2. To break this vacuum and per has the ?oat 2! secured to an intermediate por mit ?oat 2| to rise and lift valve I'I, valve I9 is now opened and liquid will flow from that part tion thereof. An upstanding pipe 22 is connected to the hori of pipe 6 which is on the inlet side of valve shell zontal pipe 23, one end of which has the discharge I5, into the evacuated segment of pipe 6 between 50 nozzle 24 as well as the cut-off valve 25. The pipe valve 9 and valve I'I, thus reducing the vacuum 23 is connected to the vertical pipe 26 which has and balancing the static pressure on opposite the valve 21 therein and which in turn connects sides of valve I1 and thereby permitting ?oat 2: I to the branch pipe 6 on the tank 5 side of the to rise and open valve H. The in?ux of liquid admitted to pipe 6 through pipe 8 and valve ID, tank 1. 55 It should now be understood that the suction may also assist the opening of valve I‘! by ap 15 20 25 30 35 40 45 50 55 2 2,089,741 plying ?uid pressure to valve [1, the extent of therein between its connection with said dis this pressure being governed by the difference in levels of the liquid in tank 5 and that in chamber i 2. As soon as valve H is opened, valve In will be closed and valve 9 opened and liquid will then ?ow from tank 5 through valves l5 and 9 to the charge line and ?oat chamber respectively. chamber, a ?oat in said chamber operatively con nected to said valve, a vacuum cut-off valve in distant suction pumps. When the'level of liquid has fallen to such a point in tank 5 that air enters pipe 6 with the the conduit at the outlet side of the ?oat operated valve, means connected to said conduit at the inlet side of said ?oat operated valve for separat liquid, the air, upon reaching the point of con nection of pipe 26 into pipe 6, will be trapped in pipe 26 and, valve 21 being opened in the meantime, will ?ow into the upper portion of chamber l2 displacing the liquid therein through '15 valve ll into pipe 5 causing ?oat'2l to lower thereby seating valve I‘! in seat It‘ and thus close off the ?ow of liquid through pipe 6. Pipe 6 will remain closed until a new operation is begun as above described. 20 While the foregoing speci?cation sets forth the invention in speci?c terms, it is to be under stood that numerous changes in shape, size, and materials may be resorted to without departing 25 hereinafter claimed. from the spirit and scope of the invention as 7 Having described the invention, what is claimed as new is: 1. In combination, a discharge line adapted to 45 50 55 60 ing air from liquid passing through said conduit 10 and for introducing the air into said ?oat cham ber, a valved by-pass extending from the inlet side of said conduit around said ?oat controlled valve and into the outlet side of said conduit at. a point between the vacuum cut-off valve and 15 said ?oat controlled valve, and an air vent in said ?oat chamber. 4. In combination, a discharge line adapted to be connected to an oil tank, a vacuum relief valve in the line, a ?oat chamber communicating 20 with the line between the tank connection and the relief valve, a second valve interposed in said line and adapted to cut off ?uid ?ow through the line and to simultaneously cut off communica tion between the chamber and the portion of the 25 line between the second valve and said vacuum relief valve, a ?oat operative in the chamber and operatively connected to the second valve for be connected to a tank, a. vacuum relief valve actuating the latter, a vent pasageway extend in the line, a ?oat chambercommunicating with ing from the line at the tank connection side of 30. the line between the tank connection and the relief valve, a valve interposed in said line, a ?oat operative in the chamber and operatively the ?oat chamber and communicating with the atmosphere, valve means for controlling the pas sage of ?uids through said passageway, a second connected with the last-mentioned valve, a vent passageway placing the ?oat chamber in com munication with the ?rst passageway, and a valve pipe extending from the line at the tank con nection side of the ?oat chamber and being open 40 3. In combination, a suction conduit, a ?oat operated valve mounted in said conduit, a ?oat at its upper end, an air escape valve at the up per end of the vent pipe, a pipe connecting the upper portion of the chamber with the upper portion of the vent pipe, and a by-pass in said discharge line around said ?oat chamber, said by-pass having a valve therein. 2. In combination, a discharge line adapted to be connected to a tank, a manually operated vacuum relief valve in the line,'a ?oat chamber having communicating connection with the line between the tank connection and the relief valve, a ?oat controlled valve in said line for controlling the flow passage in said line, a ?oat operativerin the chamber and operatively connected Withl the last-mentioned va1ve,'a vent pipe extending from the line at the tank connection side of the ?oat chamber, a manually operated air escape valve at the outer end of the vent pipe, a pipe connecting the upper portion of the chamber with the upper portion of the vent pipe inwardly of said air escape valve and a by-pass in said discharge line and around the ?oat chamber, said by-pass having a manually operated valve there in, and said vent pipe having a cut-off valve 35 by-pass having its ends communicating with the line at opposite sides of the second valve. 5. In combination, a discharge line adapted to be connected to an oil tank, a vacuum relief valve in the line, a ?oat chamber communicating with 40 the line between the tank connection and the relief valve, a second valve interposed in the line adapted to cut off ?uid ?ow therethrough and to simultaneously cut off communication be tween said chamber and the portion of the line A5 between said valves, a ?oat operative in the chamber and operatively connected with the second valve for actuating the latter, means com municating with the line between the second valve and the tank connection for separating air I 50 from liquid passing through the conduit and for introducing air into the ?oat chamber, valve means for controlling the discharge of air from the last-mentioned means and from the cham ber, and a valved by-pass having one of its ends communicating with the line between the sec ond valve and the tank connection and its other end communicating with the line between the second valve and the relief valve. JAMES A. GAINES.