DK142251B - Apparatus for filling a liquid gas container. - Google Patents

Description

(11) PUBLICATION MANUAL 142251 ίβ) v3 / DENMARK (int. Ci. * B / 02 '(21) Application No 267/70 (22) Filed on 21 Jan 1970 (24) Undecided 21. Yes »; 1970 (44) The application submitted and submitted often on 29 'ββ p. 1 98Ο

DIRECTORATE OF

PATENT AND TRADE MARKET (30) Priority requested Fri.

Jan 22 1969, 970/69, CH

(71) LIONGAS AKTIENGESELLSCHAFT, Bendern, LI.

(72) Inventor: Ludwig Elkuch, Gamprin, Bendern, LI.

(74) Plenipotentiary in the proceedings:

The engineering firm Lehmann & Ree.

(54) Apparatus for filling a liquid gas container.

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to an apparatus for filling a container with liquid gas and with a container luminaire attached to the container, in which there are two valved and spaced-apart channels, one of which during the filling of the container one serves to supply the liquid gas. and the other serves for venting the container, and the valve in the duct serving to supply the liquid gas opens in the flow direction appearing during the filling, and the valve in the venting duct opens opposite to the flow direction occurring during the venting. two valves can be moved simultaneously and in the same direction, and the degree of filling of the container is determined by the height at which the mouth of at least the duct serving is arranged in the interior of the container.

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An apparatus of this kind known from German patent specification No. 930,640 has an exterior hand wheel located on the container luminaire, by which the valves in the two ducts of the container luminaire are moved both open and closed. The two channels can only be connected one at a time either to a filling line or a consumer line. The handwheel can be operated independently of whether a filling line or a consumer line is connected, so that malfunction is possible, which is also not prevented by separate check valves, of which the valve located in the vent duct opens in the flow direction and thus opens at overpressure in the container, so that inadvertently can evade larger amounts of gas to the surroundings. The known apparatus is furthermore subject to the disadvantage that the complete filling of the container is recorded by a certain amount of liquid gas overflowing and thus being lost. Furthermore, the exterior handwheel can easily be damaged and cause interference.

The object of the invention is to improve the known apparatus in such a way that the valves are operated only at the connected filling or consumer line, but are otherwise automatically closed and that, upon complete filling of the container, no liquid gas overflow occurs, and that parts, which are easily damaged and can cause interference are eliminated.

This task is solved according to the invention in that the two valves in the ducts of a first part forming the container luminaire can be moved against the force of springs by means of a ridge in a second part which can be connected as a filling luminaire to the first part. and that the second portion has mutually spaced channels which, when the second portion is connected. the first part is connected to the filling duct and the vent duct respectively in the first part, and a float valve is arranged in the second duct which forms the continuation of the first duct duct. The operation of the valves against spring forces and the placement of the moving means in a separate filling device ensures that the interior of the container is automatically closed to the surroundings. Only after connecting the filler luminaire to the container luminaire, whereby the channels of the luminaire luminaire are connected to the channels of the feeder luminaire, it is possible to open the valves. Therefore, fault operation is practically excluded. Continuation of the container luminaire duct in the filler luminaire with the float valve located therein prevents overflow of liquid gas during filling of the container.

The movable valve body of the valve in the vent duct 3 142251 may carry the valve seat of the valve in the filler duct and contain its movable valve body. The movable valve body of the valve in the vent duct can, among other things, be a hollow body provided with a valve plate with a through bore which can be closed by means of a spring biased ball. This results in a space-saving compact assembly of the two valves.

The movable means for operating the two valves may be attached to a pipe forming part of the duct in the other part and being slidably mounted in the other part. Hereby it is achieved that the valves in both the filling duct and the vent duct can easily be brought into the desired position simultaneously with each other by displacing the pipe in the second part.

The ducts in the first part may at their mouth end be constituted by coaxially arranged plunger pipes, one of which is attached to the valve body by the valve in the vent duct and moved therewith. Hereby it is achieved that the apparatus according to the invention without any structural changes other than a change in the length of the diving duct belonging to the vent duct and possibly of the length of the diving duct belonging to the filling duct can be adapted to the desired degree of filling in different gas container structures. In the fixed connection of the diving tube belonging to the filling duct with the movable valve body of the valve in the vent duct, such difficult sealing problems are avoided between these two parts which would occur if the movable valve body with its opening end in the diving tube were to be moved therein.

In the following, the apparatus according to the invention is described in more detail with reference to the drawing. In the drawing, no.

FIG. 1 is a longitudinal section through the apparatus according to the invention, in which its two parts are connected; FIG. 2 is a longitudinal section on a larger scale through the first of said two parts (the container of time); and FIG. 3 is a wiring diagram of a liquid hydrocarbon bottling station in which containers can be filled in a simple manner by the apparatus of the invention.

In FIG. 1 is a container only partially shown, e.g. a welded steel bottle, denoted by 1. In a neck ring 2 welded to the steel bottle 1 is screwed one in its entirety with 3 designated the first part of the apparatus. In FIG. 1, on this first part 3 a second part 6 is screwed on by means of a rotating nut 4 with a handwheel 5.

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As can also be seen from FIG. 2, the first part 3 is constructed as follows. In a valve housing part 8 directly attached to the neck ring 2 by means of a thread 7, which is extended at its end 9 within the container 1 by a soldered diving tube 10, a casing-shaped valve body 11 is mounted longitudinally displaceable. The valve body 11 is at the end facing the interior 9 of the container also extended with a diving tube 12. The diving tube 12 coaxial with the diving tube 10 is screwed to the valve body 11 by means of a thread 13 and at this end has an extension 14 forming a ring groove 15 in which a gasket 16. is inserted The gasket 16 cooperates with a valve seat 17 formed in an insert part 18 which is screwed into the housing part 8 and sealed relative thereto by an O-ring seal. 19. The insert 18 has an axial through bore 23 through which the also axially pierced valve body 11 engages with clearance. Further, an extension 20 is retracted in the insert part 18 in which is mounted a pressure spring 22, which with its ends presses respectively against the insert part 18 and the valve body 11 and thus tries to press the gasket 16 against the seat 17. (In Fig. 1, gasket 16 pulled down).

The gasket 16 together with the valve seat 17 and the spring 22 thus form a first check valve whose flow path begins on the container side in an annulus 24 between the diving pipes 10, 12 and passes the gasket 16 and the seat 17 through the bore 23 into the extension 20 and thereafter, which will be described later, further upward through an annulus 25 in the housing portion 8.

In FIG. 2, it is particularly evident that the insert portion 18 at its upper edge has recesses 26 which partly form a passage between the extension 20 of the insert portion 18 and the annular space 25, and partly form points of attack for a suitable tool for screwing the insert 18 into the housing portion 8.

The through-body axial bore 27 of the valve body 11, which aligns axially with the plunger tube 12, is extended in its upper section to a chamber 28 in which is mounted a lateral clearance valve 29 and under the influence of a pressure spring 30. This ball 29 forms a second non-return valve. for the valve body, the seat of which is formed by means of an annular gasket 31, the inside diameter of which is smaller than the outside diameter of the ball 29. The gasket 31 is clamped between the valve body 11 and a screw nut 32, which is screwed onto the valve body 11 and secured against the unintentional release by a threaded pin 33. The nut nut 32 is provided with longitudinal grooves 21 on its lateral surfaces, wherein said grooves form continuing the flow paths of the first check valve 16, 17, 22 from the annulus 25.

As already mentioned, the ball 29 together with the gasket 31 and the compression spring 30 form the second check valve, whose flow path, K, starts in the interior of the diving tube 12 and passes through the bore 27 and the chamber 28 and beyond the ball 29 and the gasket 31.

On the upper end surface of the rotating nut 32 is formed a seat 34 which cooperates with a gasket 35 which is a component 3 of the second part 6. of the apparatus. . ; in

This second part (Fig. 1) consists essentially of a block e 36 in which passages are formed which, as soon as the second part 6 is coupled to the first part 3, continue the separate flow paths for the two check valves. in the first part ^ 3.

In the block 36, a connecting pin 37 is screwed in, if. cylindrical lower end 38 fits into an internal thread 39 provided with opening port 40 (Fig. 2) in the first part 3. The internal thread 39 is of no significance to the present apparatus and serves to receive a (not shown) connecting plug to a consumer cable. The connector 37 is sealed with respect to the housing part by means of a gasket 400 and further has a shoulder 41 which serves to absorb the tension force exiting from the nut 4 and also maintain it indefinitely on the other part.

The connecting pin 37 has a through axial passageway 42 which in its lower section is extended to a guide cylinder 43. In this guide cylinder 43, a guide piston 45 is provided with a longitudinally displaced bearing, which has on its lateral surface bearing flow notes 44 and which carries on its lower surface the already mentioned gasket 35. The guide piston 45 is also axially pierced, and in this bore is attached a tube 46 which extends from the piston 45 with clearance through a bore 42 upwards and further through a bore 47 in the block 36 and is mounted outside.

At the upper end of the tube 46 is an unspecified operating device which allows the tube to be displaced longitudinally in the bore 47. At the lower end of the tube 46 a pin 48 is coaxially attached to the tube in a manner not shown. said pin 48 projecting past the lower surface of the gasket 142.

Further, the tube 46 in the bore 47 is sealed by two packing boxes 49, 50, which need not be described in detail herein.

In the sealed upper section of. tube 46 is provided with a transverse bore 51 which can be flush with an inlet aperture 52 branched from the side of bore 47 in the block 36. To this inlet aperture 52, a supply line for the liquid gas can not be connected.

From what has been said so far, it can be seen that once the second part 6 is coupled to the first part 3, a longitudinal displacement of the pipe 46 downwards brings the check valves in the first part 3 from the one in fig. 2 to the closed position shown in FIG. 1. In fact, the pin 48 first lifts the ball 29 from its seat, after which the gasket 35 rests on the seat 34, after which the assembled valve body 11 is pushed downward, and thus the gasket 16 also lifts from its associated seat 17.

The passage 42 in the connecting port 37 opens into a fireplace 53 in the block 36, for which a passage 54 extends to the side and leads to a swimming chamber 55. The swimming chamber formed in the block 36 is closed at its lower end by a closing flange 56 with a gasket 57. The closure flange 56 is not attached to the block 36. In a unspecified manner, for example, by means of bolts, the float chamber 55 is closed by an additional flange 58 and a gasket 59. In the center of the flange 58, a passageway 61 out of the float chamber 55 leads to an outward exit (not shown). At the entrance to passage 61 is provided a seal 60. In the float chamber, a cylindrical float 62 is loosely disposed which carries at its lower end a guide pin 63 which fits loosely into a guide bore 64 in the terminating flange and at its upper end a valve needle. 65th

Liquid gas, which in a yet to be described manner enters the float chamber 55, raises the float 62 upwards, which, by means of the valve needle 65, blocks the passage 61. However, when the passage 61 is blocked, the flow path of the first check valve and its continuation in the second is also blocked. part, namely the annulus 24 - the bore 23, the extension 20 - the annulus 25 - the recesses 26 - the grooves 44 - the guide cylinder 43 - the passage 42 - the chamber 53 - the passage 54 - the chamber 55.

In FIG. 3 again shows the container designated 1, to which the apparatus with the interconnecting parts 3, 6 (as shown in Fig. 1) is attached. From passage 52 (Fig. 1), a conduit 66 leads to a liquid gas storage container 67, and as shown, it leads down to the bottom of the storage container 67, i.e., by means of a drain tube 68, i.e.. below the liquid level 69 of the liquid gas.

From the passageway 61 of the apparatus (Fig. 1), a conduit 70 leads to a switching valve 71 which allows this conduit 70 to be connected either to a suction piston 72 by a suction pump designated 73, or to its drive piston 74. conduit 75 connected to the storage vessel.67 and the gas phase remaining above the liquid level 69 which exhibits a constant excess pressure.

The suction pump 73 and its operation are described, for example, in U.S. Patent No. 2,986,127, so that it is sufficiently brief here to describe its operation.

As mentioned, the suction pump has a drive piston 74 which is driven by the pressurized gas from the storage container 67.

The expanded gas is discharged into the open air after discharge of the work over a discharge 76. The drive piston drives the suction piston 72, which sucks over the residual pressure in the container 1 over the conduit 70 until the pressure difference between the container 1 and the storage container is sufficient for the liquid gas to flow through the conduit 66 from the storage container 67 to the container 1.

Thus, in a relatively short time, the container fills with liquid gas, however, only until the liquid level in the container has reached the diving tube 10. Thereafter, the liquid gas rises through the annulus 24 (Fig. 1) and reaches the swimming chamber 55, whereupon the suction line 70 is immediately disconnected. . The flow from the reservoir container 67 is thereby also blocked. Operation of the switch valve 71 again provides pressure relief and puts the suction pump 73 out of operation. The container 1 is thus constantly filled with the correct amount for the individual container 1 without the need for weighing and without any foreign energy being required for the bottling.

It thus turns out that the apparatus needed at the tapping station becomes of very simple construction. If the lines 66, 75 are removed from the storage container by closing shut-off valves 77, 78, for example, this can be returned to the production site for refilling. However, the storage container 67 may also be fixed to the tapping station and e.g. as a storage tank 8 142251 for a petrol boiler to be replenished with the help of tankers.

Filling the consumer container 1 can be done very quickly, so that each gas consumer can retain his own container and exchange is unnecessary. Further, it is assured that each filling of the consumer container 1 is also correct without weighing, the degree of filling of each of the containers being determined through the length of the diving tube 10, which is once and for all adjusted to the individual container.

The part 3 of the appliance attached to the consumer container can easily serve as a drain valve. To this end, it is sufficient that the valve ball 29, when connecting the consumer cable to the container 1 (to which the thread 39 can serve), be lifted from its seat 31, whereby the gas discharge can be effected without delay as with known liquid gas containers.

Claims (4)

142251 9 Patent Claims. An apparatus for filling a container with liquid gas and with a container fitting attached to the container, in which there are two valved and spaced-apart channels, each of which during filling of the container one serves for supplying the liquid gas, and the second container for venting the container, the valve of the liquid gas supply duct opening in the flow direction appearing during the filling, and the valve in the venting duct opening opposite the flow direction occurring at the venting, and the two valves can be moved simultaneously and in the same direction, and the degree of filling of the container is determined by the height at which the mouth of at least the duct serving is arranged in the interior of the container, characterized in that the two valves (16,17,22 and 31,29,30) in the ducts (24,23,20,25,21 and 28,27,12, respectively) in a first part (3) forming the container luminaire by means of a second part ( 6) which can be connected as a filler luminaire to the first part (3), arranged controls (48,45) can be moved against the force of the spring (22.30) and that the second part (6) has separate channels (46, respectively). 51,52 and 44,42,53,54,55,61) which, when the second part (6) is connected to the first part (3), are connected to the filling duct and the vent duct respectively (28,27 , 12 and 24,23,20,25,21) in the first part (3) and in the second part (6) channel (44,42,53,54, 55,61) forming the continuation of the first part (3) vent duct (24,23,20,25,21), is provided with a float valve (62,65,60). Apparatus according to claim 1, characterized in that the movable valve body (11) of the valve (16,17,22) in the vent duct (24,23,20,25,21) carries the valve seat (31) of the valve (31,29 , 30) in the filling channel (28,27,12) and containing its movable valve body (29). Apparatus according to claim 2, characterized in that the movable valve body (11) of the valve (16,17,22) in the vent duct (24,23,20,25,21) is one with a valve plate (14,15,16). ) provided with a hollow body (27,28) which can be closed by means of a ball (29) biased by a spring (30). Apparatus according to claim 1, characterized in that the moving means (48,45) for operating the two valves (31, 29,30 and 16,17,22) are fixed to a pipe (46) forming a part of