An emergency pull-off valve control device for automated loading of a loading arm

Abstract

The present application belongs to the technical field of hose pull-off valve, and particularly relates to an emergency pull-off valve control device for automatic hose loading, which comprises a first pipe part, a second pipe part and a connecting assembly arranged between the first pipe part and the second pipe part; the connecting assembly comprises a third pipe part and a fourth pipe part, the inner end of each of the third pipe part and the fourth pipe part is provided with a butt joint disc, the third pipe part is embedded and fixed with an annular electromagnet in the butt joint disc, the fourth pipe part is embedded and fixed with an annular iron block in the butt joint disc, the first valve plate and the second valve plate capable of moving are arranged at the opening of the inner end of each of the third pipe part and the fourth pipe part, a plurality of first valve holes are uniformly arranged around the axis of the first valve plate, a plurality of second valve holes are uniformly arranged around the axis of the second valve plate, and the positions of the first valve holes and the second valve holes are one-to-one corresponding. The present application has reasonable structure design, the pull-off force can be set according to requirements, the two pipe parts can be quickly separated when the pull-off force reaches the set pull-off force, and the two pipe parts can be kept sealed after separation.

Description

Technical Field

[0001] This invention belongs to the technical field of loading arm breakaway valves, specifically relating to an automated emergency breakaway valve control device for loading loading arms. Background Technology

[0002] Breakaway valves (emergency disconnect devices) prevent leaks caused by accidental pipeline rupture. They are applicable in areas such as ship-to-shore unloading, tanker loading and unloading on highways and railways, and other fixed and mobile fluid storage devices, such as connections between loading arms, fluid transfer arms, and transport vehicles. This device acts as a weak connection point in the entire transmission process; it disconnects the pipeline connection upon reaching a set condition, while the intermediate medium remains self-sealed within the pipeline. Traditional breakaway valves have their fixed end located on the loading arm's universal joint. This universal joint moves with the tanker truck, and the breakaway valve may fail to break the connection within a certain range, potentially damaging the universal joint. Furthermore, existing products have complex structures, making regular self-inspection difficult, and leading to uncertainties and safety hazards over time. In emergencies, failure to provide adequate protection may result.

[0003] To this end, the patent specification with publication number CN215172574U discloses an emergency break valve for a loading arm used for filling propylene carbonate. The valve body includes a valve body with a fixed end and a detached end, which are nested together. A fixed groove is provided at the top of the valve body, and a movable block is provided in the fixed groove. The movable block passes through a through hole and protrudes from the outer wall of the valve body. Arc-shaped protrusions are provided on both sides of the movable block. A rope can be provided to assist in the protection of the break valve. The tension of the rope can close the break valve in time to avoid damage to the loading arm due to the break valve not separating in time. An emergency button can be provided to perform reliability testing on the break valve during daily use to avoid losses caused by the break valve failing to function in an emergency.

[0004] However, this type of emergency break-off valve for loading arms still has shortcomings. It cannot be configured with a break-off force parameter to prevent rapid separation of the two sections when the tension between them reaches the set break-off force, thus avoiding damage caused by destructive separation. Therefore, optimization and improvement are needed. Summary of the Invention

[0005] The purpose of this invention is to overcome the aforementioned problems in conventional technologies and to provide an automated emergency disconnect valve control device for loading arms.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution:

[0007] An automated emergency disconnect valve control device for loading arms includes a first pipe section, a second pipe section, and a connecting assembly between the two. The connecting assembly includes a third pipe section and a fourth pipe section. The outer ends of each of the first, second, third, and fourth pipe sections are provided with flanges for easy sealing installation. The inner ends of each of the third and fourth pipe sections are provided with mating plates. An annular electromagnet is embedded and fixed in the mating plate of the third pipe section, and an annular iron block is embedded and fixed in the mating plate of the fourth pipe section. A first valve plate is fixed at the inner end opening of each of the third and fourth pipe sections, and a second valve plate is installed near the inner end opening of each of the third and fourth pipe sections. The first valve plate has a plurality of first valve holes evenly distributed around its own axis, and the second valve plate has a plurality of second valve holes evenly distributed around its own axis. The positions of the first valve holes and the second valve holes correspond one-to-one.

[0008] Furthermore, in the aforementioned automated loading arm emergency disconnect valve control device, the third pipe section is fixed with multiple positioning posts on the outer side of the docking plate, and the fourth pipe section is provided with multiple positioning grooves that cooperate with the positioning posts on the outer side of the docking plate.

[0009] Furthermore, in the aforementioned automated loading arm emergency disconnect valve control device, the number of positioning pins is 3-6, which are evenly distributed around the central axis of the docking plate.

[0010] Furthermore, in the aforementioned automated loading arm emergency disconnect valve control device, the outer surface of the annular electromagnet is flush with the outer surface of the docking plate, and the outer surface of the annular iron block is flush with the outer surface of the docking plate; by adjusting the current flowing through the annular electromagnet, the magnitude of the magnetic attraction between the annular electromagnet and the annular iron block can be adjusted.

[0011] Furthermore, in the aforementioned automated loading arm emergency disconnect valve control device, a rotary positioning plate is provided on the outer periphery of the second valve plate, and a rotary positioning groove that cooperates with the rotary positioning plate is provided on the inner wall of the third and fourth pipe sections near the opening.

[0012] Furthermore, in the aforementioned automated loading arm emergency disconnect valve control device, a bevel gear ring is fixed to the inner side of the second valve plate, a first motor is fixed to the outer wall of the third tube near the docking plate, and a second motor is fixed to the outer wall of the fourth tube near the docking plate. The output shafts of the first motor and the second motor respectively pass through the tubes they are in and a bevel gear that meshes with the bevel gear ring is installed at the end of the shaft.

[0013] Furthermore, in the aforementioned automated loading arm emergency disconnect valve control device, a controller is installed on the outer wall of the third pipe section, and the controller is connected to the electromagnet, the first motor, and the second motor respectively.

[0014] Furthermore, in the aforementioned automated loading arm emergency disconnect valve control device, the first motor is connected to the controller via a cable, and the second motor is connected to the controller via a wireless communication module.

[0015] The beneficial effects of this invention are:

[0016] The present invention has a reasonable structural design. A connecting component is added between the first and second tube sections. The magnetic attraction between the annular electromagnet and the annular iron block in the connecting component serves as the breaking force, which can be set according to requirements. When the tension between the first and second tube sections of the loading arm reaches the set breaking force, the third and fourth tube sections in the connecting component can be quickly separated, avoiding damage caused by destructive separation. After separation, the third and fourth tube sections are driven by the first and second motors respectively to rotate the internal second valve plate by a certain angle, so that the positions of the first valve hole and the second valve hole are staggered, so that the two tube sections remain sealed after separation.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the connecting component in this invention;

[0021] Figure 3 This is a schematic diagram showing the connection between the annular electromagnet and the annular iron block in this invention;

[0022] Figure 4 This is a schematic diagram showing the positions of the first valve plate and the second valve plate in this invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first valve plate in this invention;

[0024] Figure 6 This is a connection block diagram of the main electrical components of the present invention;

[0025] In the attached diagram, the component numbers are as follows:

[0026] 1-First pipe section, 2-Second pipe section, 3-Connecting assembly, 301-Third pipe section, 302-Fourth pipe section, 303-Flange, 304-Matching plate, 305-Positioning post, 306-Annular electromagnet, 307-Annular iron block, 308-First valve plate, 309-Second valve plate, 310-First valve hole, 311-Second valve hole, 312-Rotating positioning plate, 313-Bevel gear ring, 314-First motor, 315-Second motor, 316-Bevel gear, 317-Controller. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-6 As shown, this embodiment is an emergency disconnect valve control device for automated loading arms, including a first pipe section 1, a second pipe section 2, and a connecting assembly 3 disposed between the two; the connecting assembly 3 includes a third pipe section 301 and a fourth pipe section 302. The outer ends of the first pipe section 1, the second pipe section 2, the third pipe section 301, and the fourth pipe section 302 are provided with flanges 303 for easy sealing installation, and the inner ends of the third pipe section 301 and the fourth pipe section 304 are provided with mating plates 304.

[0029] In this embodiment, the third tube 301 is fixed with multiple positioning posts 305 on the outer side of the docking plate 304, and the fourth tube 302 is provided with multiple positioning grooves that mate with the positioning posts 305 on the outer side of the docking plate 304. The number of positioning posts 305 is 3-6, and they are evenly distributed around the central axis of the docking plate 304.

[0030] In this embodiment, a ring-shaped electromagnet 306 is embedded and fixed in the docking plate 304 in the third tube 301, and a ring-shaped iron block 307 is embedded and fixed in the docking plate 304 in the fourth tube 302. The outer surface of the ring-shaped electromagnet 306 is flush with the outer surface of the docking plate 304, and the outer surface of the ring-shaped iron block 307 is also flush with the outer surface of the docking plate 304. The magnetic attraction between the ring-shaped electromagnet 306 and the ring-shaped iron block 307 can be adjusted by adjusting the current flowing through the ring-shaped electromagnet 306.

[0031] In this embodiment, a first valve plate 308 is fixed at the inner end opening of each of the third tube section 301 and the fourth tube section 302, and a second valve plate 309 is installed at the inner end opening of each of the third tube section 301 and the fourth tube section 302. The first valve plate 308 and the second valve plate 309 abut against each other, and the second valve plate 309 can rotate around its own axis. The first valve plate 308 has a plurality of first valve holes 310 evenly distributed around its own axis, and the second valve plate 309 has a plurality of second valve holes 311 evenly distributed around its own axis. The positions of the first valve holes 310 and the second valve holes 311 correspond one-to-one.

[0032] In this embodiment, a rotary positioning plate 312 is provided on the outer periphery of the second valve plate 309, and a rotary positioning groove that mates with the rotary positioning plate 312 is provided on the inner wall of the third tube 301 and the fourth tube 302 near the opening. A bevel gear ring 313 is fixed on the inner side of the second valve plate 309, a first motor 314 is fixed on the outer wall of the third tube 301 near the docking plate 304, and a second motor 315 is fixed on the outer wall of the fourth tube 302 near the docking plate 304. The output shafts of the first motor 314 and the second motor 315 pass through their respective tubes and a bevel gear 316 that meshes with the bevel gear ring 313 is installed at the end of the shaft.

[0033] In this embodiment, a controller 317 is installed on the outer wall of the third tube 301. The controller 317 is connected to the electromagnet 306, the first motor 314, and the second motor 315. The first motor 314 is connected to the controller 317 via a cable, and the second motor 315 is connected to the controller 317 via a wireless communication module.

[0034] A specific application of this embodiment is as follows: a connecting component 3 is added between the first tube section 1 and the second tube section 2. The magnetic attraction between the annular electromagnet 306 and the annular iron block 307 in the connecting component 3 is used as the breaking force, which can be set according to requirements. When the tension between the first tube section 1 and the second tube section 2 of the loading arm reaches the set breaking force, the third tube section 301 and the fourth tube section 302 in the connecting component 3 can be quickly separated to avoid damage caused by destructive separation. After separation, the third tube section 301 and the fourth tube section 302 are driven by the first motor 314 and the second motor 315 respectively to rotate the internal second valve plate 309 by a certain angle, so that the positions of the first valve hole 310 and the second valve hole 311 are staggered, so that the two tube sections remain sealed after separation.

[0035] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automated emergency pull-off valve control device for loading a loading arm, characterized by: The utility model relates to a kind of pipe connection assemblies, including first pipe part, second pipe part and be located between connecting component;The connecting component includes third pipe part and fourth pipe part, the flange plate of the outer end of the first pipe part, second pipe part, third pipe part and fourth pipe part is respectively equipped with being sealed and being installed, the butt plate of the inner end of the third pipe part and fourth pipe part is respectively equipped with, annular electromagnet is embedded and fixed in the butt plate of the third pipe part, annular iron block is embedded and fixed in the butt plate of the fourth pipe part, first valve plate is fixed in the opening of the inner end of the third pipe part and fourth pipe part respectively, second valve plate is installed in the opening of the inner end of the third pipe part and fourth pipe part respectively, the first valve plate is evenly provided with a plurality of first valve holes around its axis, the second valve plate is evenly provided with a plurality of second valve holes around its axis, the position of the first valve hole and the second valve hole is one-to-one corresponding; The third pipe part is fixed with a plurality of positioning columns on the outer side of butt plate, the fourth pipe part is inwardly provided with a plurality of positioning grooves matched with positioning column on the outer side of butt plate; The number of the positioning column is 3-6, which is evenly distributed around the central axis of the butt plate; The outer side of the annular electromagnet is flush with the outer side of the butt plate, and the outer side of the annular iron block is flush with the outer side of the butt plate;The magnetic attraction between annular electromagnet and annular iron block is adjusted by adjusting the current of annular electromagnet; The outer periphery of the second valve plate is provided with a rotary positioning plate, and the inner wall of the third pipe part and the fourth pipe part is provided with a rotary positioning groove matched with the rotary positioning plate near the opening; The inner side of the second valve plate is fixed with a bevel gear, the outer wall of the third pipe part is fixed with a first motor near the butt plate, the outer wall of the fourth pipe part is fixed with a second motor near the butt plate, the output shaft of the first motor and the second motor is respectively penetrated through the pipe part and installed with a bevel gear engaged with the bevel gear at the shaft end.

2. The automated emergency pull-off valve control for loading of a loading arm according to claim 1, characterized in that The outer wall of the third pipe part is installed with a controller, and the controller is connected with the electromagnet, the first motor and the second motor respectively.

3. The automated emergency pull-off valve control for loading of a loading arm according to claim 2, characterized in that: The first motor is connected with the controller by cable, and the second motor is wirelessly connected with the controller based on wireless communication module.

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