A two-way rupture disc safety device

Abstract

This utility model relates to a bidirectional rupture disc safety device, comprising a rotating drum. A second bevel gear is fixedly mounted on the upper surface of the rotating drum. One or more holes are formed on the circumferential surface of the rotating drum. One or more first bevel gears mesh with the upper surface of the second bevel gear. A second fixing rod is fixedly mounted near the surface of the rotating drum, with the center of the second fixing rod and the center of the first bevel gear on the same horizontal plane. A connecting rod is sleeved on the outer surface of the second fixing rod. A lower clamping plate is disposed above the rotating drum. The end of the connecting rod away from the first bevel gear is fixedly connected to the lower inner surface of the lower clamping plate. This bidirectional rupture disc safety device uses pressure changes to drive the clamping plate to move up and down, and the meshing of the bevel gears to drive the rotating drum to rotate. This allows the interior of the pressure vessel to contact the exterior when pressure fluctuates, reducing the frequent application of pressure to the rupture disc, preventing its structural integrity from gradually deteriorating, and reducing the risk of accidental activation.

Description

Technical Field

[0001] This utility model relates to the field of rupture disc technology, specifically a two-way rupture disc safety device. Background Technology

[0002] A bidirectional rupture disc is a specially designed pressure safety device that can respond to pressure changes in both directions. It activates not only when the internal system pressure exceeds the external ambient pressure, but also when the internal system pressure is lower than the external ambient pressure to protect equipment from damage. A bidirectional rupture disc safety device refers to a complete solution built using this characteristic to ensure the safety of industrial equipment or processes. This device achieves comprehensive protection of equipment through the use of bidirectional rupture discs, making it suitable for various industrial fields, including chemical, oil and gas, and food and beverage industries. It is an important safety component for storage tanks, pipelines, reactors, and other process equipment.

[0003] During use, existing bidirectional rupture disc safety devices often experience pressure fluctuations close to the set value of the bidirectional rupture disc inside the pressure vessel due to factors such as flow rate and external temperature. Since the bidirectional rupture disc is a single-use component, it can lead to material fatigue. Under such conditions for a long time, the structural integrity of the bidirectional rupture disc will gradually decrease, increasing the risk of accidental activation.

[0004] Therefore, a two-way rupture disc safety device is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a bidirectional rupture disc safety device with advantages such as long service life and stable operation. To achieve the above objectives, this utility model provides the following technical solution: it includes a rotating drum, on the upper surface of which a second bevel gear is fixedly disposed, and one or more holes are opened on the circumferential surface of the rotating drum. One or more bevel gears mesh with the upper surface of the second bevel gear.

[0006] A fixing rod 2 is fixedly installed near the surface of the rotating drum of the bevel gear 1. The center of the fixing rod 2 and the center of the bevel gear 1 are on the same horizontal plane. A connecting rod is sleeved on the outer surface of the fixing rod 2. A lower clamping plate is provided above the rotating drum. The end of the connecting rod away from the bevel gear 1 is fixedly connected to the lower inner surface of the lower clamping plate.

[0007] Preferably, the outer surface of the rotating drum is fitted with a shell, and two ventilation pipes are fixedly installed on the outer surface of the shell as a group, and the ventilation pipes are in a group or more.

[0008] Preferably, a baffle is fixedly provided on the top of the outer shell, a flange is fixedly provided at the lower end of the outer shell, and a baffle and a baffle are fixedly provided inside the outer shell.

[0009] Preferably, one or more springs are fixedly provided on the upper surface of the second baffle, and the end of the spring away from the second baffle is fixedly connected to the lower surface of the lower clamping plate.

[0010] Preferably, an upper clamping plate is provided above the lower clamping plate, and a bidirectional rupture disc is provided between the upper clamping plate and the lower clamping plate. The upper clamping plate is fixedly connected to the lower clamping plate by a fixing piece.

[0011] Preferably, a fixing rod is rotatably inserted at the center of the bevel gear, and the end of the fixing rod away from the bevel gear is fixedly connected to the inner wall of the outer casing.

[0012] Preferably, the outer surface diameter of the lower clamping plate and the rotating cylinder is the same as the inner surface diameter of the outer shell, and the lower clamping plate and the rotating cylinder are both located inside the outer shell.

[0013] Compared with the prior art, this utility model provides a two-way rupture disc safety device, which has the following beneficial effects:

[0014] 1. This bidirectional rupture disc safety device uses pressure changes to drive the clamping plate to move up and down, and then the meshing of bevel gears to drive the rotating drum to rotate. This allows the inside of the pressure vessel to contact the outside when the pressure fluctuates, reducing the frequent pressure applied to the rupture disc, preventing its structural integrity from gradually decreasing, and reducing the risk of accidental activation.

[0015] 2. This bidirectional rupture disc safety device, by placing one hole between the two ventilation pipes, enables pressure transformation operation regardless of which side the rotating drum rotates to.

[0016] 3. This bidirectional rupture disc safety device achieves internal sealing by the cooperation between the outer surface of the clamping plate and the inner wall of the outer shell, and by the ability of the rotating drum to return to its initial position after pressure transformation, thus ensuring the stability of the pressure vessel under normal working conditions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the position and structure of the bevel gear and its related connecting components of this utility model;

[0019] Figure 3 This is a schematic diagram of the positional structure of the connecting rod and bevel gear of this utility model;

[0020] Figure 4 This is a schematic diagram of the rotating drum structure of this utility model;

[0021] Figure 5This is a schematic diagram of the half-section top view of the present invention;

[0022] Figure 6 This is a schematic diagram of the half-section structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the bidirectional rupture disc and clamping plate structure of this utility model.

[0024] In the diagram: 1. Outer shell; 2. Ventilation pipe; 3. Baffle 1; 4. Flange; 5. Hole 1; 6. Bevel gear 1; 7. Rotary drum; 8. Fixed rod 1; 9. Connecting rod; 10. Bevel gear 2; 11. Baffle 2; 12. Baffle 3; 13. Spring; 14. Upper clamping plate; 15. Lower clamping plate; 16. Bidirectional rupture disc; 17. Fixed rod 2; 18. Fixed plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Please see Figure 1 - Figure 7 A bidirectional rupture disc safety device in this embodiment includes a rotating drum 7, a bevel gear 10 fixedly disposed on the upper surface of the rotating drum 7, one or more holes 5 opened on the peripheral surface of the rotating drum 7, and one or more bevel gears 6 meshing on the upper surface of the bevel gear 10.

[0028] A fixing rod 17 is fixedly installed near the surface of the rotating drum 7. The center of the fixing rod 17 and the center of the bevel gear 6 are on the same horizontal plane. A connecting rod 9 is sleeved on the outer surface of the fixing rod 17. A lower clamping plate 15 is installed above the rotating drum 7. The end of the connecting rod 9 away from the bevel gear 6 is fixedly connected to the lower inner surface of the lower clamping plate 15.

[0029] When the internal pressure of the pressure vessel increases, it pushes the lower clamping plate 15 upward. The lower clamping plate 15 drives the bevel gear 6 to rotate through the connecting rod 9. Under the rotation of the bevel gear 6, the rotating cylinder 7 rotates to one side, and the hole 5 rotates to one side accordingly, gradually rotating to the external pressure transformation pipeline. The pressure inside the pressure vessel can then release pressure to the outside through the hole 5. Conversely, when the internal pressure of the pressure vessel decreases, the lower clamping plate 15 falls, and the hole 5 rotates in the opposite direction to the direction of pressure increase. The hole 5 gradually rotates to the external pressure transformation pipeline, and the pressure inside the pressure vessel can then contact the outside through the hole 5 to restore normal pressure. This means that when the internal pressure of the pressure vessel fluctuates, it can restore stable air pressure through the rotation of the hole 5 to contact the outside. When the internal pressure is within the normal fluctuation range, there is no need to continuously pressurize the rupture disc body, which avoids the gradual decrease in its structural integrity and reduces the risk of accidental activation.

[0030] The outer surface of the rotating drum 7 is fitted with a shell 1, and two or more ventilation pipes 2 are fixedly installed on the outer surface of the shell 1.

[0031] The ventilation pipe 2 and the hole 5 are on the same horizontal plane, and the hole 5 is located between the two ventilation pipes 2, so that when the hole 5 rotates to both sides, it can overlap with the ventilation pipe 2 to the maximum extent to perform pressure change action, improve work efficiency, and reduce the possibility of the pressure inside the pressure vessel exerting pressure on the rupture disc.

[0032] A baffle 1 3 is fixedly installed on the top of the outer casing 1, a flange 4 is fixedly installed at the bottom of the outer casing 1, and a baffle 2 11 and a baffle 3 12 are fixedly installed inside the outer casing 1.

[0033] Among them, baffle 1 3 prevents the lower clamping plate 15 from falling outside the outer shell 1 during the upward process, and baffle 2 11 is located below the lower clamping plate 15 to raise the point of force and keep it in a normal lifting and lowering state. The inner diameter of baffle 1 3 and baffle 2 11 is not less than the inner diameter of the lower clamping plate 15, so that the rupture disc will not affect the release of its pressure when it needs to be activated, and achieves the maximum effect of bidirectional pressure relief.

[0034] One or more springs 13 are fixedly installed on the upper surface of the second baffle 11, and the end of the spring 13 away from the second baffle 11 is fixedly connected to the lower surface of the lower clamping plate 15.

[0035] After the lower clamping plate 15 presses down and pressurizes the inside of the pressure vessel, the lower clamping plate 15 can rise back to the initial position under the elasticity of the spring 13, driving the hole 5 to return to the initial position, so that the inside of the pressure vessel ends contact with the outside and can be used normally.

[0036] An upper clamping plate 14 is provided above the lower clamping plate 15, and a bidirectional rupture disc 16 is provided between the upper clamping plate 14 and the lower clamping plate 15. The upper clamping plate 14 is fixedly connected to the lower clamping plate 15 through a fixing piece 18.

[0037] The bidirectional rupture disc 16 is located between the upper surface of the upper clamping plate 14 and the lower surface of the lower clamping plate 15, preventing accidental contact by external objects and enhancing the safety and reliability of the equipment.

[0038] A fixing rod 8 is rotatably inserted at the center of bevel gear 6, and the end of fixing rod 8 away from bevel gear 6 is fixedly connected to the inner wall of outer casing 1.

[0039] The bevel gear 6 is rotatably connected to the fixed rod 8, which allows the bevel gear 6 to rotate only in the same position, preventing it from shifting at the center of the circle and affecting the rotation amplitude of the rotating drum 7, thereby reducing the efficiency of the transformer.

[0040] The outer diameter of the lower clamping plate 15 and the rotating cylinder 7 is the same as the inner diameter of the outer shell 1, and the lower clamping plate 15 and the rotating cylinder 7 are both located inside the outer shell 1;

[0041] The lower clamping plate 15 and the outer surface of the rotating cylinder 7 are in contact with the inner surface of the outer shell 1, ensuring that the rotating cylinder 7 does not shift in the horizontal direction. At the same time, when the pressure inside the pressure vessel is stable, it will not come into contact with the outside, ensuring that it works normally inside.

[0042] The working principle of the above embodiments is as follows:

[0043] When the pressure inside the pressure vessel increases during use, it pushes the lower clamping plate 15 upward. The lower clamping plate 15 drives the bevel gear 6 to rotate via the connecting rod 9. Under the rotation of the bevel gear 6, the rotating cylinder 7 rotates to one side, and the hole 5 rotates to one side accordingly, gradually rotating to the external pressure transformation pipeline. The pressure inside the pressure vessel can then release pressure to the outside through the hole 5. Conversely, when the pressure inside the pressure vessel decreases, the lower clamping plate 15 falls, and the hole 5 rotates in the opposite direction to the direction of pressure increase, gradually rotating to the external pressure transformation pipeline. The pressure inside the pressure vessel can then contact the outside through the hole 5, restoring the pressure to normal. At the same time, when the external pressure is lost, the lower clamping plate 15 can return to its initial position under the elasticity of the spring 13, driving the hole 5 to rotate back to its initial position, ensuring the sealing of the pressure vessel and allowing it to work normally. This means that when the pressure inside the pressure vessel fluctuates, it can restore a stable air pressure through the rotation of the hole 5 and contact with the outside. Within the normal fluctuation range of internal pressure, there is no need to continuously pressurize the rupture disc body, avoiding a gradual decrease in its structural integrity and reducing the risk of accidental activation.

[0044] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bidirectional rupture disc safety device comprising a frustoconical body (7), characterised in that: A bevel gear 2 (10) is fixedly provided on the upper surface of the rotating drum (7), and one or more holes 1 (5) are opened on the peripheral surface of the rotating drum (7). One or more bevel gears 1 (6) mesh with the upper surface of the bevel gear 2 (10). A fixing rod (17) is fixedly installed near the surface of the rotating drum (7) of the first bevel gear (6). The center of the second fixing rod (17) and the center of the first bevel gear (6) are on the same horizontal plane. A connecting rod (9) is sleeved on the outer surface of the second fixing rod (17). A lower clamping plate (15) is provided above the rotating drum (7). The end of the connecting rod (9) away from the first bevel gear (6) is fixedly connected to the lower inner surface of the lower clamping plate (15).

2. A bidirectional burst disc safety device according to claim 1, characterised in that: The outer surface of the rotating drum (7) is fitted with a shell (1), and two ventilation pipes (2) are fixedly arranged on the outer surface of the shell (1). The ventilation pipes (2) are in a group or more.

3. The bidirectional rupture disc safety device according to claim 2, characterized in that: A baffle (3) is fixedly installed on the top of the outer shell (1), a flange (4) is fixedly installed at the lower end of the outer shell (1), and a baffle (11) and a baffle (12) are fixedly installed inside the outer shell (1).

4. The bidirectional rupture disc safety device according to claim 3, characterized in that: One or more springs (13) are fixedly installed on the upper surface of the second baffle (11), and the end of the spring (13) away from the second baffle (11) is fixedly connected to the lower surface of the lower clamping plate (15).

5. The bidirectional rupture disc safety device according to claim 1, characterized in that: An upper clamping plate (14) is provided above the lower clamping plate (15), and a bidirectional rupture disc (16) is provided between the upper clamping plate (14) and the lower clamping plate (15). The upper clamping plate (14) is fixedly connected to the lower clamping plate (15) through a fixing piece (18).

6. The bidirectional rupture disc safety device according to claim 2, characterized in that: A fixing rod (8) is rotatably inserted at the center of the bevel gear (6), and the end of the fixing rod (8) away from the bevel gear (6) is fixedly connected to the inner wall of the outer shell (1).

7. A bidirectional rupture disc safety device according to claim 2, characterized in that: The outer surface diameter of the lower clamping plate (15) and the rotating cylinder (7) is the same as the inner surface diameter of the outer shell (1), and the lower clamping plate (15) and the rotating cylinder (7) are both located inside the outer shell (1).

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