Safe pressure relief equipment for vertical ultrahigh pressure container

Abstract

The utility model relates to safety pressure relief equipment for a vertical ultrahigh-pressure container, which belongs to the technical field of ultrahigh-pressure containers and comprises an ultrahigh-pressure container, a pressure relief valve is fixedly mounted at the top of the ultrahigh-pressure container, a pressure relief pipe is fixedly mounted at the output end of the pressure relief valve, a first-stage expansion pipe is fixedly mounted at one end of the pressure relief pipe, and a second-stage expansion pipe is fixedly mounted at the other end of the pressure relief pipe. And a second-stage expansion pipe is fixedly mounted at one end of the first-stage expansion pipe. According to the safety pressure relief equipment for the vertical ultrahigh-pressure container, the first-stage expansion pipe is arranged at one end of the pressure relief pipe, the second-stage expansion pipe is arranged at one end of the first-stage expansion pipe, and the inner diameter of the pipeline is increased, so that fluid in the pressure relief process is gradually decelerated, and the fluid is blocked and decelerated through the first-stage buffer part and the second-stage buffer part; therefore, impact generated during pressure relief is reduced, and the problems that traditional pressure relief equipment is simple in structure, part of pressure relief equipment can generate large impact in the pressure relief process, and adverse effects on peripheral equipment are caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of ultra-high pressure vessel technology, specifically to a safety pressure relief device for vertical ultra-high pressure vessels. Background Technology

[0002] Vertical ultra-high pressure vessels refer to containers with a working pressure greater than or equal to 100 MPa, whose internal space is typically vertical. These vessels can operate under extreme pressure conditions, requiring extremely high standards for materials and manufacturing processes. They can withstand extremely high pressures to meet the needs of various ultra-high pressure processes. They are generally manufactured using high-strength, high-toughness materials such as stainless steel, gun steel, and duplex stainless steel. These materials possess excellent mechanical properties and corrosion resistance to ensure the safety and stability of the vessel under high pressure. The vertical design results in a larger footprint in the vertical direction, but a relatively smaller footprint at the base, facilitating installation and layout within limited spaces.

[0003] Vertical ultra-high pressure vessels are typically equipped with safety accessories such as safety valves, rupture discs, pressure sensors, and temperature sensors to monitor and control the pressure and temperature inside the vessel. When the pressure or temperature exceeds the set value, the safety valve or rupture disc will automatically release pressure to ensure the safety of the vessel.

[0004] However, traditional pressure relief devices have simple structures, and some of them generate significant impacts during the pressure relief process, which can adversely affect surrounding equipment. Therefore, this application proposes a safety pressure relief device for vertical ultra-high pressure vessels. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a safety pressure relief device for vertical ultra-high pressure vessels. It has the advantages of setting a buffer device at the outlet of the pressure relief device to reduce the impact force generated during pressure relief. It solves the problem that traditional pressure relief devices have simple structures, and some pressure relief devices generate large impacts during the pressure relief process, which have adverse effects on surrounding equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safety pressure relief device for a vertical ultra-high pressure vessel, comprising an ultra-high pressure vessel, a pressure relief valve body fixedly installed on the top of the ultra-high pressure vessel, a pressure relief pipe fixedly installed at the output end of the pressure relief valve body, a primary expansion pipe fixedly installed at one end of the pressure relief pipe, a secondary expansion pipe fixedly installed at one end of the primary expansion pipe, a primary buffer component rotatably installed inside the primary expansion pipe, and a secondary buffer component rotatably installed inside the secondary expansion pipe;

[0007] The primary and secondary buffer components have the same structure but different sizes. The secondary buffer component includes a cross circular plate with a rotating shaft fixedly installed at the top and bottom. The rotating shaft is rotatably connected to the inner top wall of the secondary expansion tube. A flow hole is provided on the side of the cross circular plate.

[0008] Furthermore, a hydraulic drive rod is fixedly installed on the top of the pressure relief valve body, and the movable end of the hydraulic drive rod extends into the interior of the pressure relief valve body.

[0009] Furthermore, a connecting rod is fixedly installed at the movable end of the hydraulic drive rod, and a valve ball is fixedly installed at the bottom end of the connecting rod, the valve ball being adapted to the bottom of the pressure relief valve body.

[0010] Furthermore, an upper pressure sensor is fixedly installed on the inner top wall of the ultra-high pressure vessel, a side pressure sensor is fixedly installed on the inner side wall of the ultra-high pressure vessel, and a bottom pressure sensor is fixedly installed on the inner bottom wall of the ultra-high pressure vessel.

[0011] Furthermore, a controller is fixedly installed on one side of the ultra-high pressure vessel, and the controller is electrically connected to the hydraulic drive rod, the upper pressure sensor, the side pressure sensor, and the bottom pressure sensor.

[0012] Furthermore, the pressure relief pipe, the primary expansion pipe, and the secondary expansion pipe are fixedly fitted with heat-insulating and sound-insulating jackets, and cooling pipes are wound around the surfaces of the pressure relief pipe, the primary expansion pipe, and the secondary expansion pipes. The input and output ends of the cooling pipes are connected to an external refrigeration device.

[0013] Furthermore, a connecting flange is fixedly installed at one end of the secondary expansion tube, a feed pipe is fixedly installed at the top of the ultra-high pressure vessel, and a discharge pipe is fixedly installed at the bottom of the ultra-high pressure vessel.

[0014] Furthermore, the bottom of the ultra-high pressure vessel is fixedly equipped with support legs, and the bottom end of the support legs is fixedly equipped with a base plate.

[0015] Compared with the prior art, this utility model provides a safety pressure relief device for vertical ultra-high pressure vessels, which has the following beneficial effects:

[0016] This safety pressure relief device for vertical ultra-high pressure vessels uses a primary expansion pipe at one end of the pressure relief pipe and a secondary expansion pipe at the other end. By increasing the inner diameter of the pipe, the fluid gradually slows down during the pressure relief process. The primary and secondary buffers further decelerate the fluid, thereby reducing the impact generated during pressure relief. This solves the problem that traditional pressure relief devices have simple structures, and some devices generate large impacts during pressure relief, which can adversely affect surrounding equipment. Attached Figure Description

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

[0018] Figure 2 This is a front view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the pressure relief valve body of this utility model;

[0020] Figure 4 This is a three-dimensional drawing of the secondary buffer component of this utility model.

[0021] In the diagram: 1. Ultra-high pressure vessel; 2. Pressure relief valve body; 3. Pressure relief pipe; 4. Primary expansion pipe; 5. Secondary expansion pipe; 6. Primary buffer; 7. Secondary buffer; 71. Cross circular plate; 72. Rotating shaft; 73. Flow hole; 8. Hydraulic drive rod; 9. Connecting rod; 10. Valve ball; 11. Upper pressure sensor; 12. Side pressure sensor; 13. Bottom pressure sensor; 14. Controller; 15. Thermal insulation and soundproofing jacket; 16. Cooling pipe; 17. Connecting flange; 18. Feed pipe; 19. Discharge pipe; 20. Support leg; 21. Base plate. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 4 A safety pressure relief device for a vertical ultra-high pressure vessel includes an ultra-high pressure vessel 1. A pressure relief valve body 2 is fixedly installed on the top of the ultra-high pressure vessel 1. A pressure relief pipe 3 is fixedly installed at the output end of the pressure relief valve body 2. A primary expansion pipe 4 is fixedly installed at one end of the pressure relief pipe 3. A secondary expansion pipe 5 is fixedly installed at one end of the primary expansion pipe 4. A primary buffer 6 is rotatably installed inside the primary expansion pipe 4. A secondary buffer 7 is rotatably installed inside the secondary expansion pipe 5. The primary expansion pipe 4 and the secondary expansion pipe 5 gradually increase the inner diameter of the pressure relief channel, reducing the pressure relief pressure and achieving deceleration.

[0024] The primary buffer 6 and the secondary buffer 7 have the same structure but different sizes. The secondary buffer 7 includes a cross-shaped circular plate 71, with a rotating shaft 72 fixedly installed at the top and bottom of the cross-shaped circular plate 71. The rotating shaft 72 is rotatably connected to the inner top wall of the secondary expansion tube 5. A flow hole 73 is provided on the side of the cross-shaped circular plate 71. The primary buffer 6 and the secondary buffer 7 block the fluid, thereby slowing down the fluid during the pressure relief process and reducing the impact force of the fluid output.

[0025] Meanwhile, a hydraulic drive rod 8 is fixedly installed on the top of the pressure relief valve body 2, and the movable end of the hydraulic drive rod 8 extends into the interior of the pressure relief valve body 2.

[0026] The hydraulic drive rod 8 has a connecting rod 9 fixedly mounted on its movable end, and a valve ball 10 fixedly mounted on the bottom end of the connecting rod 9. The valve ball 10 is adapted to the bottom of the pressure relief valve body 2. The hydraulic drive rod 8 moves the valve ball 10, thereby opening and closing the pressure relief valve body 2.

[0027] Meanwhile, an upper pressure sensor 11 is fixedly installed on the inner top wall of the ultra-high pressure vessel 1, a side pressure sensor 12 is fixedly installed on the inner side wall of the ultra-high pressure vessel 1, and a bottom pressure sensor 13 is fixedly installed on the inner bottom wall of the ultra-high pressure vessel 1.

[0028] A controller 14 is fixedly installed on one side of the ultra-high pressure vessel 1. The controller 14 is electrically connected to the hydraulic drive rod 8, the upper pressure sensor 11, the side pressure sensor 12, and the bottom pressure sensor 13. Through multiple pressure sensors, the internal pressure of the ultra-high pressure vessel 1 is accurately detected, and the controller 14 determines whether to open the pressure relief mechanism based on the pressure value.

[0029] Meanwhile, thermal insulation and soundproofing jackets 15 are fixedly installed on the surfaces of the pressure relief pipe 3, the primary expansion pipe 4, and the secondary expansion pipe 5. Cooling pipes 16 are wound around the surfaces of the pressure relief pipe 3, the primary expansion pipe 4, and the secondary expansion pipe 5, with the inlet and outlet ends of the cooling pipes 16 connected to an external refrigeration unit. The cooling pipes 16 cool the pressure relief pipe 3, the primary expansion pipe 4, and the secondary expansion pipe 5, while the thermal insulation and soundproofing jackets 15 provide thermal insulation and soundproofing.

[0030] Among them, a connecting flange 17 is fixedly installed at one end of the secondary expansion tube 5, a feed pipe 18 is fixedly installed at the top of the ultra-high pressure vessel 1, and a discharge pipe 19 is fixedly installed at the bottom of the ultra-high pressure vessel 1.

[0031] Secondly, the bottom of the ultra-high pressure vessel 1 is fixedly equipped with a support leg 20, and the bottom end of the support leg 20 is fixedly equipped with a base plate 21.

[0032] In this embodiment, during use, the first-stage expansion tube 4 and the second-stage expansion tube 5 gradually expand the inner diameter of the pressure relief channel, reduce the pressure relief, and achieve deceleration. At the same time, the first-stage buffer 6 and the second-stage buffer 7 block the fluid, thereby decelerating the fluid during the pressure relief process and reducing the impact force of the fluid output.

[0033] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0034] 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.

[0035] 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 safety pressure relief device for a vertical ultra-high pressure vessel, comprising an ultra-high pressure vessel (1), characterized in that: The top of the ultra-high pressure vessel (1) is fixedly installed with a pressure relief valve body (2), the output end of the pressure relief valve body (2) is fixedly installed with a pressure relief pipe (3), one end of the pressure relief pipe (3) is fixedly installed with a primary expansion pipe (4), one end of the primary expansion pipe (4) is fixedly installed with a secondary expansion pipe (5), a primary buffer (6) is rotatably installed inside the primary expansion pipe (4), and a secondary buffer (7) is rotatably installed inside the secondary expansion pipe (5). The primary buffer (6) and the secondary buffer (7) have the same structure but different sizes. The secondary buffer (7) includes a cross circular plate (71). A rotating shaft (72) is fixedly installed on the top and bottom of the cross circular plate (71). The rotating shaft (72) is rotatably connected to the inner top wall of the secondary expansion tube (5). A flow hole (73) is opened on the side of the cross circular plate (71).

2. The safety pressure relief device for a vertical ultra-high pressure vessel according to claim 1, characterized in that: A hydraulic drive rod (8) is fixedly installed on the top of the pressure relief valve body (2), and the movable end of the hydraulic drive rod (8) extends into the interior of the pressure relief valve body (2).

3. A safety pressure relief device for a vertical ultra-high pressure vessel according to claim 2, characterized in that: A connecting rod (9) is fixedly installed at the movable end of the hydraulic drive rod (8), and a valve ball (10) is fixedly installed at the bottom end of the connecting rod (9). The valve ball (10) is adapted to the bottom of the pressure relief valve body (2).

4. A safety pressure relief device for a vertical ultra-high pressure vessel according to claim 3, characterized in that: An upper pressure sensor (11) is fixedly installed on the inner top wall of the ultra-high pressure vessel (1), a side pressure sensor (12) is fixedly installed on the inner side wall of the ultra-high pressure vessel (1), and a bottom pressure sensor (13) is fixedly installed on the inner bottom wall of the ultra-high pressure vessel (1).

5. A safety pressure relief device for a vertical ultra-high pressure vessel according to claim 4, characterized in that: A controller (14) is fixedly installed on one side of the ultra-high pressure vessel (1). The controller (14) is electrically connected to the hydraulic drive rod (8), the upper pressure sensor (11), the side pressure sensor (12), and the bottom pressure sensor (13).

6. A safety pressure relief device for a vertical ultra-high pressure vessel according to claim 1, characterized in that: The pressure relief pipe (3), the first-stage expansion pipe (4) and the second-stage expansion pipe (5) are fixedly installed with heat insulation and sound insulation jackets (15). The pressure relief pipe (3), the first-stage expansion pipe (4) and the second-stage expansion pipe (5) are wrapped with cooling pipes (16). The input end and output end of the cooling pipes (16) are connected to the external refrigeration device.

7. A safety pressure relief device for a vertical ultra-high pressure vessel according to claim 1, characterized in that: A connecting flange (17) is fixedly installed at one end of the secondary expansion tube (5), a feed pipe (18) is fixedly installed at the top of the ultra-high pressure vessel (1), and a discharge pipe (19) is fixedly installed at the bottom of the ultra-high pressure vessel (1).

8. A safety pressure relief device for a vertical ultra-high pressure vessel according to claim 1, characterized in that: The bottom of the ultra-high pressure vessel (1) is fixedly equipped with a support leg (20), and the bottom end of the support leg (20) is fixedly equipped with a base plate (21).

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