RU28905U1 - LOCKING DEVICE FOR TANK CONTAINER - Google Patents

Description

W X LOCKING DEVICE FOR A CONTAINER-TANK The proposed utility model relates to the field of chemical engineering, and more specifically to locking devices for containers intended for storage and transportation in automobile, railway and water transport, which are under pressure from aggressive liquids, gases and substances. In accordance with domestic and international standards of container transportation, the conditions for the storage of tank containers and their transportation are strictly regulated by the requirements for their reliability and explosion safety, which, along with other structural and technological {solutions, are ensured by the tightness and reliability of the shut-off valves used simultaneously on the day of loading and unloading transported medium. There are various locking devices for draining and loading the transported medium of tank containers (for example, gas valves from Fort Vale, Great Britain), made in the form of successively fixed mutually independent three valves: internal high-speed (with disk elements), external with a ball valve) and additional, made in the form of a plug with seals. These zshshorny devices due to their design features have relatively low performance and reliability, as well as poor maintainability. The closest solution to the claimed technical essence and the achieved effect when using it is the well-known design of the locking device for the tank container according to the patent of the Russian Federation for the invention N 2154217, F16K 27/07, 01/10/2000. Such a locking device contains three sequentially installed MPC F16K 21/00 F16K 27/07} shut-off valves with independent control elements: an internal high-speed (with a butterfly valve), a main external (with a ball valve) and an additional external, made in the form of a plug with seals. The internal high-speed shut-off valve comprises: a first body, at the end of which a main seat is made, made interacting with the main plate, axially mounted with the possibility of axial movement on a rod installed with the possibility of axial movement inside the first sleeve, fixedly mounted relative to the first case / common between the main plate and with one end of the first sleeve there is a working spring, and between the emphasis, motionlessly cuffed at one end of the rod, and the other with the end of the first sleeve placed in collapsible spring, first (rotary) handle fixedly attached to the outer end of the spindle fixed in the wall of the first housing perpendicular to the axis of the stem with the possibility of rotation about its axis, with a different (inner) end of which the eccentric cam made interacting with the stop is fixedly fixed, spool (spool device) for naming the pressure between the cavity of the tank container and the cavity of the first body, made in the form of an additional plate fixed motionless at the end of the piece an eye opposite to the stop, and made interacting with an additional saddle made in the outer end of the main plate, the cavity of the additional saddle communicating with the inner cavity of the body using a gap formed by the flat surface on the side surface of the stem and the wall of the rod hole in the main plate. W X power (nvsupfsh) flange fixedly mounted on the outer side surface of the first housing and fixedly connected to the flange of the tank container. The main external zshshorny valve contains: a second body, motionlessly and tightly fastened to the first body of the internal high-speed shut-off valve, inside of which a spherical seat is fixedly mounted with a rotary ball locking body, which in turn is connected to one of the shaft; placed with the possibility of rotation in the side wall of the second housing perpendicular to the axis of the rod, and the other end of the shaft brought out outside the side surface of the second about the body from the side, opposite ozhnoy placing the outer end of the inner spindle speed locking klgshana and fixedly connected to the second (rotary) handle. The additional external shut-off valve comprises: a third body, one end fixedly and tightly connected to the second body, and the other end fixedly connected through a sealing device by a releasable connection with a plug. At the same time, the locking elements of all locking clangs are arranged coaxially with each other and with the internal working cavities of all three buildings. This design of the locking device for the tank container allows for relatively small mass-dimensional characteristics to ensure its operation even in extreme conditions. However, practice has shown that the operation of the locking device of this design is complicated by the fact that: firstly, in some cases, the locking device may fail due to the instability of the cam drive of the cam follower ia-sa of one-sided cantilever fastening in the wall of the first spindle casing, which secures the eccentric cam, which in turn leads to leaks of highly dangerous substances transported; secondly, in the operation process during the movement of the rod, an uncontrolled rotation of the main cone-shaped plate is possible, which in turn leads to a violation of the tightness of the connection of the main plate with the main saddle and possible leakage of aggressive media; thirdly, carrying out routine and a number of repair work due to the design features of the attachment point of this locking device to the tank container is greatly hindered by the need for carrying out the ordered work after dismantling and returning to the place of the locking device, obligatory carrying out lengthy and costly full tests of the locking device together with container tank not in laboratory but in workshop conditions; fourthly, the reliability of the locking device is reduced due to the possible failure of the device for balancing the pressure between the cavity of the tank container and the cavity of the first body, due to both increased backlash of the rod with flatness relative to the main plate, and rapid clogging of dirt from the tank container holes of complex shape, connecting the cavity of the additional seat with the cavity of the first body. The task to which the present utility model is directed is to increase the efficiency of the operation of the locking device for the tank container by increasing the reliability of its operation and improving maintainability.

This problem is solved primarily by obtaining a technical result - increasing the reliability of one of the main components of the Zshornoy device - an internal high-speed locking clang, as well as increasing productivity and reducing costs for routine and repair work.

The specified result is achieved by the fact that in the known design of the locking device for the tank container, containing three sequentially installed shut-off valves: internal high-speed, main external and additional external, and the locking elements of all shut-off valves are mounted coaxially with each other,

The internal fastener zshshorny valve contains:

the first body, at the end of which the main seat is made, interacting with the main plate, mounted coaxially with axial movement on a rod, axially moved with the possibility of axial movement inside the sleeve, fixedly mounted relative to the first body, and between the main plate and one end of the sleeve there is a working a spring, and between the emphasis fixedly fixed on one end of the rod and the other end of the sleeve there is a return spring,

the first (rotary) handle fixedly fastened to the outer end of the spindle fixed in the wall of the first housing perpendicular to the axis of the rod with the possibility of rotation about its axis and motionlessly shcheplenny with an eccentric cam made interacting with the stop,

spool (spool device) for balancing the expansion between the cavity of the tank container and the cavity of the first body, made in the form of an additional plate fixed motionless on the end of the rod opposite from the stop, and made interacting with

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additional saddle, VB filled in the outer end of the main plate, and the cavity of the cushion gel gel communicated with the cavity of the first body,

a power (carrying) flange fixedly mounted on the outer side surface of the first housing and fixedly connected to the flange of the tank container,

The main external shutoff valve contains:

motionlessly and tightly fastened to the first body of the internal high-speed shut-off valve, the second body, inside of which a spherical saddle is fixedly mounted non-movably, is mounted with a rotatable ball locking body, which in turn is connected to one of the shaft ends, which is rotatably located in the side the wall of the second housing perpendicular to the axis of the rod, with the other end of the shaft outward outside the side surface of the second housing from the side opposite to the positioning of the outer end of the spindle in morning velocity check valve, and is fixedly connected to the second (rotary) handle,

additional external shutoff valve contains:

a third body, at one end motionlessly and tightly connected to the second body of the main external shutoff valve, and at the other end, motionlessly connected through a sealing device by a detachable connection with a plug clamped by a union nut,

Additionally, the following has been completed:

the spindle of the internal high-speed shut-off valve is made in the form of a beam, the inner end of which is fixed with the possibility of rotation on the opposite side of the first housing, and the fastening points of the outer and inner ends of the spindle are symmetrical about the axis of the rod and the fastening point of the eccentric cam on the spindle. W

tm, the cavity of the additional seat on the main plate is in communication with the first side of the body using the at least two symmetrically located inclined holes (channels) made in the main plate, the working surface of which and the working surface of the main saddle are made flat and perpendicular to the axis of the rod, a regulatory assembly comprising a perforated gasket installed between the power flange and the flange of the tank container, moreover, on the power flange at one end from the side of the cyst container the first annular groove has been made, and on the opposite end there are two blind holes symmetrically located relative to the axis of the power flange, the cavities of which are connected to the cavity of the first annular groove in the power flange and in which cap bolts are installed, in addition, on the side of the tank container flange the power flange is made reciprocal second annular groove equidistant to the first annular groove on the power flange, and the cavity of the first and second annular grooves communicated with each other through the holes perfo In the case of a gasket, the flap on one side is additionally equipped with a first fixation unit TjfiOt from rotation relative to the sleeve, and on the other hand, with a second angle of fixation from rotation relative to the main plate. The special implementation of several components of the locking device, as well as the introduction of an additional routing unit in the design of the locking device, can significantly increase the reliability of operation and operational safety, as well as significantly reduce the cost of routine and repair work, which in turn can significantly increase the efficiency of the operation of for the tank container. The claimed utility model is illustrated by drawings, in which: in FIG. 1 shows an obfpo view of the inventive locking device for a tank container with a longitudinal section; in FIG. Figure 2 shows a top view of the locking device showing the handles of the lettering of the operation of the internal high-speed and main external shut-off valves in the closed and open position; the second position is $ 1x; on Fit. 3 shows a cross-section along aa of the internal high-speed locking clang; in FIG. 4 shows place B showing the design of the rod retainer against rotation relative to the sleeve; in FIG. 5 shows in section BB the construction of the regulatory unit with installed technological plugs; in FIG. 6, place G is shown, showing the design of the device for equalizing the pressure between the cavity of the tank container and the cavity of the first body, as well as the node for fixing the rod from rotation relative to the main plate. The proposed locking device for the tank container contains (see Fit.) Three sequentially installed shut-off valves: internal high-speed 1, main external 2 and additional external 3, and the shut-off elements of all shut-off valves are mounted coaxially with each other. The internal high-speed shut-off valve 1 contains (see Fig. 1, 6) a first body 4, at the end of which a main seat 5 is made, which is made interacting with the main plate 6, mounted coaxially with the possibility of axial movement on the rod 7 installed (see Fig. 4) with the possibility of axial movement inside the sleeve 8, W fixedly fixed relative to the first body 4, and (see Fig. 1) between the main plate 6 and one end of the sleeve 8 there is a working spring 9, and between the stop 10, which is not fixed on one end of the rod 7, and twist the torus it bush 8 is placed a return spring 11; the first (rotary) handle 12, fixedly attached to the outer end of the spindle 13, mounted in the wall of the first housing 4 perpendicular to the axis of the rod 7 with the possibility of rotation about its axis, and fixedly attached to the eccentric cam 14, made interacting with the stop 10; a spool (spool device) for balancing the pressure between the cavity of the tank-container (not shown in the drawing) and the cavity of the first body 4, made in the form of an additional plate 15 (see Fig. 1.6), fixed stationary on the end of the rod 7, opposite to emphasis 10, and made interacting with an additional saddle 16, made in the outer end of the main plate 6, and the cavity of the additional saddle 16 is in communication with the cavity of the first body 4; power (load-bearing) flange 17, fixedly mounted on the outer side surface of the first body 4 and fixedly connected (see Figure 5) with the flange 18 of the tank container. The main external control valve 2 contains: a second housing 19, which is fixed and hermetically fastened to the first body 4 of the internal high-speed shut-off valve 1, inside of which the spherical seat 20 is fixedly mounted with a rotary ball shut-off element 21, which in turn is connected to one of the ends of the shaft 22, placed rotatably in the side wall of the second housing 19 perpendicular to the axis of the rod 7, the other end of the shaft 22 is brought out outside the side surface of the second housing 19 with a toron opposite to the placement of the outer W end of the spindle 13 of the inner high-speed shut-off valve 1, and is fixedly connected to the second (rotary) handle 23. The additional external shut-off valve 3 comprises: a third body 24, one end fixed and hermetically connected to the second body 19 of the main external shut-off valve valve 2, and the other end is fixedly connected through the sealing device 25 by a plug-in connection with a plug 26, clamped by a union nut 27. In addition, the spindle 13 of the internal high-speed locking to Apana 1 is made in the form of a bgshka, the inner end 28 of which is fixed in the wall of the first housing 4 with the possibility of rotation on the opposite side from the fastening point of the outer end 29 of the spindle 13, and the fastening points of the outer 29 l all-round 28 ends of the spindle 13 are symmetrical about the axis of the rod 7 places of fastening of the eccentric cam 14 on the spindle 13. The cavity of the additional seat 16 on the main 6 (see 6) is communicated with the cavity of the first body 4 using at least two symmetrically located inclined holes (kangshov) 30 made in the main plate 6, the working surface 31 of which and the working surface of the main saddle 5 are made flat and perpendicular to the axis of the rod 7 . In addition (see Figure 5}, there is a regulatory assembly containing a perforated gasket 32 mounted between the power flange 17 and the flange 18 of the tank container, the first ring is made on the power flange 17 at one end from the side of the tank container a groove 33, and at the opposite end there are two blind holes 34 symmetrically located relative to the axis of the power flange 17 of the hole 34, the cavities of which are connected to the cavity of the first annular bushing 33 in the power flange 17 and in which the blind plugs 35 are installed, ifpoM - 10 W of this, the flange 18 of the container-dista from the side of the power flange 17 is made reciprocal second annular groove 36 equidistant to the first annular groove 33 on the power flange 17, and the cavities of the first 33 and second 36 ring grooves are interconnected through holes 37 Rowan gasket 32. iqpoMe of rod 7 with one hand (see. Figure 4) is additionally equipped with a first fixation unit from the crank 38 (for example, a pin groove type) relative to the sleeve 8, and on the other hand (see Figure 6) a second fixation unit from a crank 39 (also, for example, a pin groove) relative to the main plate 6. The proposed locking device for the tank container is operated apeduyup them way. I. DRAINING THE WORKING LIQUID FROM THE TANK CONTAINER When the tank container is full (not shown in the drawing) and the auxiliary plate 15 of the spool and the main 6 of the internal high-speed shut-off valve 1 are closed, the pressure in the internal cavity of the tank container exceeds the pressure in the cavity of the additional seat 16. Difference pressure in these cavities leads to the emergence of a force that presses the additional plate 15 of the spool to the main plate 6, and the main plate 6 to the main seat 5 at the end of the first body 4. After removing the plug 2 6 and connecting to the third body 24 an additional external Shutoff valve 3 of the drain line (not shown in the drawing), the internal high-speed 1 and the main external 2 shut-off valves are sequentially opened in the following manner. When the first handle 12 is rotated, the rotation of the spindle 13 with the eccentric cam 14 fixed on it drives the rod 7. The rod 7 compresses the working 9 and return 11 springs and the 11 W left force, which is caused by the pressure range in the internal cavity of the tank container and in the cavity of the first body 4, the spool with an additional plate 15 is opened. Into the open channels 30 (see Phi.6) between the cavity of the additional seat 16 and the main plate 6, a working medium rushes into the cavity of the first body 4 of the internal high-speed locking valve valve 1 and after opening by turning the second handle 23 of the main external shut-off valve 2 through the cavity of the ball shut-off member 21 and the cavity of the third body 24 of the additional external shut-off valve 3 rushes into the line in the drawing is not shown). In this case, the pressure difference in the inner cavity of the tank container and in the cavity of the first body 4 is reduced, the compressed working spring 9 is opened and opens the main plate 6, while closing the additional plate 15 of the spool. The main discharge of the working medium from the tank container to the main pipe begins (not shown in the drawing). In this case, if you do not hold the first handle 12 in the open position, then the vulture that occurs when the return spring 11 is compressed will release the stem 7 and the main plate 6 will close, and the first handle 12 will come to the closed position. Therefore, when draining the working medium from the tank container, the first handle 12 is fixed in the unlocked position using a special locking device (cable with a bumpy element) mounted on a fixed support that does not belong to the tank container. II. FILLING THE TANK CONTAINER WITH WORKING LIQUID Before filling the tank container with the working fluid, СН (а) shot nut 27 and plug 26 with sealing device 25 if - 12 H

using the second handle 23, the main external shut-off valve 2 is opened. If the pressure in the internal cavity of the tank container is significantly lower than in the main supplying the working medium, then the force acting on the main plate 6 and caused by the pressure difference, even in the position of the first handle 12 closed gkzhet to overcome the resistance of the return spring 11 and open the main plate 6, letting the working medium inside the tank container. As the pressure equalizes in the inner cavity of the tank container and the main line cavity, the return spring 11 will open and close the main plate 6. Further filling of the tank container is only possible in the position of the first handle 12 open. When the first handle 12 is turned to the open position, the rotation of the spindle 13 with the eccentric cam 14 drives the rod 7. The rod 7 compresses the working 9 and return spring 11 and opens the main plate 6. however, if you do not hold the first handle 12 in the open position, the return spring 11, unclenching, raises the rod 7, the main plate 6 closes and stops access of the working medium to the tank container, the first handle 12 will come from the initial position Closed. Therefore, when filling the tank container, the first handle 12 must be fixed in the open position using a special device (cable with a fusible element) fixed on a fixed (not shown in the drawing), not belonging to the tank container. III. DEFENSE OR DAMAGE TO THE WORKING HIGHWAY As it was noted above, during normal loading operations or - 13 hours draining of the working medium, the first handle 12 is locked in position with the help of special tools (cable with fusible element) fixed to a fixed support that does not belong tank container. With a sudden depressurization or breakage of the line in the cavity of the first housing 4, the pressure drops sharply. The force acting on the main plate 6 overcomes the resistance of the working spring 9 and closes the main plate 6. The medium continues to flow in a small amount from the internal cavity of the tank container into the cavity of the first body 4 through the annular gap between the additional plate 15 and the main plate 6. For the complete termination of the flow of the working medium into the cavity of the first housing 4, it is necessary to unlock the first handle 12, after which the compressed return spring 11 will be unclenched, move the rod 7, an additional plate 15 of gold and zahsroetsya and the first handle 12 takes its original position zahfyto. IV. A RANDOM MOTOR OF A CONTAINER-TANK OR ITS GET INTO THE FIRE AREA As mentioned above, during normal operation, the first handle 12, which is uploaded by loading or draining the working medium, is fixed in the open position using a special device (cable with a fusible element) mounted on a fixed support that does not belong tank container. If the tank container is accidentally moved or enters the fire zone, the first handle 12 is automatically released due to mechanical destruction of the cable or melting of the floating element. The force arising from the compression of the return spring 11 will move the rod 7, the main plate 6 will close, providing a cessation of the flow of the working medium into the cavity of the first housing 4, and the first handle 12 will come to its original closed position. - 14 H V. PERFORMANCE ORDER OF REGULATORY OR REPAIR WORKS When necessary and when carrying out routine or repair work, for example, by routine replacement of worn seals in the shut-off device, the Waste device is removed from the tank container, it is partially or completely disassembled, replacement is necessary with O-rings and reversing assembly with verification and control tests on a special stand. After that, the locking device is mounted on the tank container using the power flange 17 and the tank container flange 18, as well as the perforated gasket 32 installed between them. After ETOD7O, the flange joint is tested for gerosity using a routing assembly. For this (see FIG. 5), plug bolts 35 are removed from the blind holes 34. A compressor (not shown) is connected to one of the blind holes 34, by means of which air is pumped into this hole under high pressure. A pressure gauge is connected to the second blind hole 34 (not shown in the drawing), with which the pressure in the cavities of the routing unit is monitored (i.e., in the cavities of the first 33 and second 36 rings of the Exch grooves and holes 37 of the perforated plinth 32). By the drop in air pressure in the indicated cavities, the leakage of the flange connection of the locking device with the tank container is judged. Using the proposed utility model allows: 1. Significantly increase the operational efficiency of the 3anopHo; i 4j device for the tank container by increasing the workload and improving the performance. 2. To increase the reliability of one of the main components - 15 H of the shut-off device - an internal high-speed shut-off valve by increasing the stiffness of the cam drive of its control, as well as by giving the main plate a flat orient surface. 3. Significantly increase labor productivity and reduce the costs of routine maintenance and repair work by eliminating in most cases the need to dismantle the entire locking device and secure a long and costly full-tested locking device together with a tank container. 4. To increase the reliability of the shut-off device by increasing the reliability of the spool device for naming the pressure between the cavity of the tank container and the cavity of the housing of the internal high-speed shut-off valve. - 16 SHUT-OFF

Claims (5)

1. The locking device for the tank container, containing three sequentially installed shut-off valves: internal high-speed, main external and additional external, and the locking elements of all shut-off valves are mounted coaxially with each other, while the internal high-speed shut-off valve contains a first housing, at the end of which is made the main seat made interacting with the main plate mounted coaxially with the possibility of axial movement on the rod mounted with the possibility of axial movement inside a sleeve fixedly mounted relative to the first body, and a working spring is placed between the main plate and one end of the sleeve, and a return spring is placed between the stop fixedly fixed at one end of the rod and the other end of the sleeve; the first handle fixedly attached to the outer end of the spindle mounted in the wall of the first housing perpendicular to the axis of the rod with the possibility of rotation about its axis and fixedly attached to an eccentric cam made interacting with a stop; a spool for equalizing the pressure between the cavity of the tank container and the cavity of the first body, made in the form of an additional plate fixed motionless on the end of the rod opposite from the stop, and made interacting with an additional seat made in the outer end of the main plate, the cavity of the additional seat communicating with cavity of the first building; a power flange fixedly mounted on the outer side surface of the first body and fixedly connected to the flange of the tank container; the main external shut-off valve comprises a second housing which is fixedly and tightly fastened to the first body of the internal high-speed shut-off valve, inside of which a spherical seat is fixedly mounted with a rotary ball shut-off member, which in turn is connected to one of the ends of the rotatably mounted shaft in the side wall of the second body perpendicular to the axis of the rod, and the other end of the shaft is brought out outside the side surface of the second body from the side can accommodate the outer end of the spindle of the internal high-speed shut-off valve, and fixedly connected to the second handle; the additional external shutoff valve comprises a third housing, one end fixedly and tightly connected to the second housing of the main external shutoff valve, and the other end fixedly connected through a sealing device by a releasable connection with a plug clamped by a union nut, characterized in that the spindle of the internal high-speed shutoff valve is made in in the form of a beam, the inner end of which is fixed with the possibility of rotation on the opposite side of the first housing, and and the inner ends of the spindle are symmetric with respect to the piston rod and secure place eccentric cam on the spindle. 2. The locking device for the tank container according to claim 1, characterized in that the cavity of the additional seat on the main plate is in communication with the cavity of the first body using at least two symmetrically located inclined holes made in the main plate. 3. The locking device for the tank container according to claim 1, characterized in that the working surface of the main plate and the working surface of the main saddle are made flat and perpendicular to the axis of the rod. 4. The locking device for the tank container according to claim 1, characterized in that it is additionally introduced a regulatory unit containing a perforated gasket installed between the power flange and the flange of the tank container, moreover, on the power flange at one end from the side of the tank container the first annular groove is made, and on the opposite end there are two blind holes symmetrically located relative to the axis of the power flange, the cavities of which are connected to the cavity of the first annular groove in the power flange and in which anovleny bolt stub, in addition, on the flange of the tank-container by the force of the flange is made reciprocal second annular groove, said first annular groove ekvidestantnaya force on the flange, wherein the first cavity and the second annular grooves are interconnected through the holes of the perforated liner. 5. The locking device for the tank container according to claim 1, characterized in that the rod on the one hand is additionally equipped with a first fixation unit from rotation relative to the sleeve, and on the other hand, a second fixation unit from rotation about the main plate.