RU158654U1 - RAILWAY DRAINER OF THE RAILWAY TANK - Google Patents

Abstract

1. A drain device of a railway tank containing a drain pipe, upper and lower locking devices located at its ends and an intermediate locking element located between them, mounted on the drain pipe with the possibility of reciprocating movement, characterized in that the intermediate locking element is made in the form of a flat element and has a drive to move it. 2. A drain device according to claim 1, characterized in that the intermediate shut-off element is mounted with the possibility of reciprocating movement in a direction different from the direction of the axis of the drain pipe, with the provision in the fully extended position of the fully open passage section of the drain pipe. The drain device according to claim 1, characterized in that the intermediate shut-off element is mounted with the possibility of reciprocating movement in the direction perpendicular to the axis direction of the drain pipe. The drain device according to claim 1, characterized in that the drive of the intermediate locking member is made in the form of a lead screw with a flywheel mounted on the free end of the lead screw.

Description

The utility model relates to the field of railway transport and can be used in the transportation and discharge of fluid, including highly viscous and solidifying cargoes in tank cars equipped with drainage devices with a triple degree of protection. Structurally, the triple degree of protection provides for three locking devices that are sequentially installed on the drain pipe and independently controlled by individual drives - upper, intermediate and lower. The presence of an intermediate locking device does not always allow for the unloading of the tank car to completely open the passage section of the drain pipe in its middle part.

Known drain devices with an intermediate locking element located in the middle part of the drain pipe between the upper valves and lower valves (UA 8099, IPC B61D 5/00, publ. 17.01.2005; RU 2289052, IPC F16K 27/07, F16K 39/02, F16K 31/52, publ. 10.12.2006; RU 2154217, IPC F16K 27/07, publ. 10.08.2000). Intermediate locking bodies of known drainage devices are rotary butterfly valves or dampers that open the lumen of the drainage pipe, turning around its axis by means of actuators (controls), which are a worm gear, or a cardan shaft, or a spindle with a flywheel.

In known technical solutions, the intermediate locking elements themselves and their seats are located inside the cavity of the drain pipe, so they partially overlap the useful section of the drain pipe even during unloading of the tank, thereby increasing the time for unloading liquid cargo.

A drain device of a railway tank is known, consisting of three sequentially located shutters with independent control from each other: the main, additional and intermediate, made in the form of a disk shutter, while the control element of the intermediate shutter is made in the form of a spindle with a handle on the end, a flywheel and gear, connected kinematically by a worm gear (patent RU 142675, IPC B61D 5/00, B65D 90/54, publ. 06.27.2014).

The drain pipe of this drain device when moving (turning around its axis) the shutter of the intermediate shutter during the unloading of the tank remains partially blocked, its bore is noticeably narrowed by a shutter made in the form of a disk shutter and a spindle on which the shutter is installed inside the nozzle. This design helps to slow down the rate of discharge of liquids from the tank, in particular viscous liquids.

Also known is a drain device of a railway tank car containing a drain pipe, an upper lock, a lower lock and an intermediate lock located between them, made in the form of a safety plug installed in the drain pipe with the ability to move in a plane perpendicular to the axis of the drain pipe (patent RU 110349, IPC B61D 5/00, F16K 13/00, publ. 30.008.2011).

The use of such a device is complicated by the fact that the movement of the plug relative to the drain pipe (its unscrewing-twisting) is dependent on the position (opening or closing) of the lower shutter. In addition, the design of the stopper in the form of a stopper is complicated by the installation of an o-ring and a ball valve in it, as well as the fact that to ensure tightness, it is necessary to treat the inner surface of the drain pipe with high requirements for cleanliness and shape.

The objective of the utility model is to achieve the most complete opening of the bore of the drain pipe at the level of the intermediate locking device when unloading the tank.

The technical result of the utility model consists in reducing the time spent on unloading the tank, in the possibility of unloading the tanks on unloading racks equipped with special equipment for monitoring, servicing or heating highly viscous and solidifying products, in improving the quality and safety of servicing the tank car, in simplifying design and reducing the complexity of manufacturing.

The specified technical result is achieved by the fact that in the drain device of the railway tank containing the drain pipe, the upper and lower locking devices and an intermediate locking device located between them, installed in the drain pipe with the possibility of reciprocating movement, according to the proposed, the intermediate locking body is made in the form flat element and has a drive to move it. In this case, the intermediate shut-off element is installed with the possibility of reciprocating movement in a direction different from the direction of the axis of the drain pipe, mainly in the perpendicular to the axis of the drain pipe, with the provision in the extreme extended position of the fully open passage section of the drain pipe. The drive of the intermediate locking element can be made in the form of a lead screw with a flywheel mounted on its free end.

The implementation of the intermediate locking element in the form of a flat element controlled by a manual actuator provides unhindered reciprocating movement of the valve relative to the drain pipe. In contrast to the use of butterfly valves in similar known technical solutions, such a design allows the intermediate locking member to be completely removed from the drain pipe lumen; it has a structural, technological and operational simplicity. Thanks to the reciprocating movement in the position of maximum extension of the intermediate locking element, it becomes possible to fully open the passage section of the middle part of the drain pipe. In this position of the locking element and provided that the upper and lower locking devices are fully open, the maximum discharge rate of the fluid cargo tank is ensured, there are no turns, swirls of the flow of the drained liquid (cargo), and hydraulic resistance is minimized. In addition, the unloading of the tank is carried out on unloading racks equipped with special equipment, for example, universal unloading devices with telescopic hydraulic monitors, which takes into account the particular infrastructure and extends the technological capabilities of the invention. Moving the valve in a direction perpendicular to the axis of the drain pipe, or at an angle to this axis that does not coincide with it (in the range of more than 0 ° and less than 180 °), expands the range of the design of the drain device, and also increases safety, since it removes the control process driven from under the tank and allows the operator to carry out actions while being near the tank. The proposed design minimally affects the construction length, thereby allowing you to enter the railway tank in the assembly with the proposed drain device in the installed dimensions.

The proposed utility model is illustrated in the drawing.

The drain device of the railway tank is a drain pipe 1 with an upper locking device 2 and a lower locking device 3 mounted on it, between which an intermediate locking device is mounted in the middle of the drain pipe 1. The latter consists of a locking element 4, made in the form of a flat element, and a control actuator containing a mechanism 5 of forced opening-closing of the locking element 4, made in the form of, for example, a lead screw, and a flywheel 6, mounted on the free end of the mechanism 5.

The locking element 4 is installed in the space between two flanges (positions not shown) mounted on the drain pipe 1 in its middle part, with the possibility of reciprocating movement in a direction that does not coincide with the direction of the axis of the drain pipe 1, ensuring that in the full extended position opening the passage of the drain pipe 1. Preferred is the design of the locking body 4, ensuring its movement in the direction perpendicular to the axis of the drain pipe 1.

The mechanism 5 is enclosed in a casing fixed on the indicated flanges, based on the calculation of the placement of the fully extended locking element 4. In this case, the flanges can be mounted not only perpendicular to the axis of the drain pipe 1, but also at an angle, setting the position of the flywheel 6 as at the level of the locking body 4, and above or below it.

The proposed drain device operates as follows.

Before unloading the tank using independent from each other control drives, the locking elements of the lower locking device 3, the intermediate locking device and the upper locking device 2 are opened sequentially. The locking element 4 of the intermediate locking device is opened by turning the handwheel 6 until the locking body (flat element) is fully extended ) 4 from the lumen of the drain pipe 1.

Closing the drain device is carried out in the reverse order.

Claims (4)

1. A drain device of a railway tank containing a drain pipe, upper and lower locking devices located at its ends and an intermediate locking device located between them, mounted on the drain pipe with the possibility of reciprocating movement, characterized in that the intermediate locking body is made in the form of a flat element and has a drive to move it. 2. The drain device according to claim 1, characterized in that the intermediate shut-off element is mounted with the possibility of reciprocating movement in a direction different from the direction of the axis of the drain pipe, providing in the extreme extended position the full opening of the passage section of the drain pipe. 3. The drain device according to claim 1, characterized in that the intermediate locking element is mounted with the possibility of reciprocating movement in the direction perpendicular to the direction of the axis of the drain pipe. 4. The drain device according to claim 1, characterized in that the drive of the intermediate locking element is made in the form of a lead screw with a flywheel mounted on the free end of the lead screw.

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