Pressure vessel with a buffer device

Abstract

The utility model relates to petroleum pipeline technical field, the utility model provides a pressure vessel with buffer device, it includes container body, first protective shell is set up in the outer periphery of container body, second protective shell is movably set up in the outer periphery of first protective shell, and there is interval between first protective shell, and first protective shell is arranged respectively on first protective shell and second protective shell on the both ends of first elastic member. First protective shell is set up in the outer periphery of container body, and directly contacts with container body, plays the primary protection function, second protective shell movably set up in the outer periphery of first protective shell, and there is interval between first protective shell, can move relative to first protective shell when being hit. Second protective shell is connected with first protective shell through first elastic member, when second protective shell is hit and moves relative to first protective shell, first elastic member will follow and change shape, absorbs the impact energy through the elastic deformation, offsets partial impact force, improves the anti -impact performance and security of pressure vessel.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of oil pipeline technology, specifically to a pressure vessel with a buffer device. Background Technology

[0002] In the field of oil pipeline technology, pressure vessels, as sealed devices used to hold gases or liquids and withstand certain pressures, are of paramount importance in terms of safety and stability. Patent searches revealed that existing technologies, such as Chinese utility model patent publication number CN203730747U, disclose a pressure vessel consisting of a cylinder and a head. The head has a manhole and a manhole cover for sealing, and the manhole cover also has a first port and a second port. While this pressure vessel possesses advantages such as simple structure and reasonable port layout, in actual application scenarios, due to the complex and variable transportation environment of oil pipelines, which often faces collisions and impacts, the overall impact resistance of this pressure vessel is poor, making it difficult to ensure the safety of the internal medium and the stable operation of the equipment, posing certain safety hazards. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a pressure vessel with a buffer device, which solves the technical problem that the overall impact resistance of pressure vessels in the prior art is poor, making it difficult to ensure the safety of the internal medium and the stable operation of the equipment.

[0004] According to one aspect, at least one embodiment of the present invention provides a pressure vessel with a buffer device, comprising: a vessel body;

[0005] A first protective shell is fitted around the outer periphery of the container body;

[0006] The second protective shell is movably fitted around the outer periphery of the first protective shell and is spaced apart from the first protective shell.

[0007] A first elastic element has its two ends respectively disposed on the first protective shell and the second protective shell, and is used to elastically push the second protective shell away from the first protective shell.

[0008] For example, in a pressure vessel with a buffer device provided in at least one embodiment of the present invention, the first protective shell is a split structure, including a first inner shell and a second inner shell, and the first inner shell and the second inner shell are detachably connected by fasteners.

[0009] For example, in a pressure vessel with a buffer device provided in at least one embodiment of the present invention, there are at least two first elastic elements, at least one of the two ends of the first elastic element is respectively disposed on the first inner shell and the second protective shell, and at least one of the two ends of the first elastic element is respectively disposed on the second inner shell and the second protective shell.

[0010] For example, in a pressure vessel with a buffer device provided in at least one embodiment of the present invention, the arrangement direction of the first elastic element is parallel to the radial direction of the vessel body;

[0011] The first elastic element has two sets, one set is disposed between the first inner shell and the second protective shell, and the other set is disposed between the second inner shell and the second protective shell;

[0012] Each group contains two of the first elastic elements, and the first elastic elements in each group are symmetrically located on the upper and lower sides of the horizontal line.

[0013] For example, in a pressure vessel with a buffer device provided in at least one embodiment of the present invention, the second protective shell is a split structure, the second protective shell includes a first outer shell and a second outer shell, the first outer shell and the second outer shell are arc-shaped, the first outer shell is connected to the first inner shell through the first elastic member, and the second outer shell is connected to the second inner shell through the first elastic member.

[0014] For example, in at least one embodiment of the present invention, a pressure vessel with a buffer device further includes: a buffer assembly, the buffer assembly comprising:

[0015] A first block, disposed on the first inner shell and located between the first inner shell and the first outer shell, the first block having a first inclined portion.

[0016] The second block is raised and lowered on the first outer shell and extends close to the first block, the second block having a second inclined portion for abutting against the first inclined portion;

[0017] The second elastic element has its two ends respectively disposed on the second block and the first outer shell, and is used to elastically push the second block.

[0018] For example, in a pressure vessel with a buffer device provided in at least one embodiment of the present invention, the first block has two first inclined portions, which are respectively located on the upper and lower sides of the first block;

[0019] The second block has two second inclined portions, which are located on the upper and lower sides of the two first inclined portions, respectively.

[0020] For example, in a pressure vessel with a buffer device provided in at least one embodiment of the present invention, the first block has two first inclined portions, which are respectively located on the upper and lower sides of the first block;

[0021] There are two second blocks, which are arranged at intervals along the height direction. There are two corresponding second elastic elements. The two second blocks are respectively connected to the first outer shell through the two second elastic elements.

[0022] For example, in a pressure vessel with a buffer device provided in at least one embodiment of the present invention, the first outer shell has a groove, a guide rod is provided vertically inside the groove, the second block is movably disposed on the guide rod, and the two ends of the second elastic member are respectively disposed at the bottom of the second block and the groove.

[0023] For example, in a pressure vessel with a buffer device provided in at least one embodiment of the present invention, the second outer shell also has a groove and a guide rod, the buffer assembly has two sets, and a set of the buffer assembly is also provided between the second outer shell and the second inner shell. The first block of the buffer assembly is provided on the second inner shell, the second block is elliptical and disposed on the guide rod of the second outer shell, and the two ends of the second elastic member are respectively provided at the bottom of the groove of the second block and the second outer shell.

[0024] The beneficial effects of the embodiments of this utility model are as follows:

[0025] In this invention, the first protective shell is fitted around the outer periphery of the container body and directly contacts the container body, providing initial protection and reducing direct damage to the container body from external impacts. The second protective shell is movably fitted around the outer periphery of the first protective shell, serving as an external protective layer and bearing the external impact force first. The second protective shell is spaced apart from the first protective shell and can move relative to the first protective shell when impacted.

[0026] The second protective shell is connected to the first protective shell via a first elastic element. Under normal conditions, the first elastic element elastically pushes the second protective shell away from the first protective shell, maintaining a certain distance between them. When the second protective shell is impacted and moves relative to the first protective shell, the first elastic element deforms accordingly, absorbing impact energy and offsetting part of the impact force through elastic deformation. This improves the impact resistance and safety of the pressure vessel. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a pressure vessel with a buffer device according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of the first protective shell, the second protective shell, and the connecting components in the embodiment;

[0030] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0031] Figure 4 This is a schematic diagram of the structure of a buffer assembly of a pressure vessel with a buffer device according to another embodiment of the present invention.

[0032] In the figure: 1. Container body; 2. First protective shell; 201. First inner shell; 202. Second inner shell; 3. Second protective shell; 301. First outer shell; 302. Second outer shell; 4. First elastic element; 5. Buffer assembly; 501. First block; 5011. First inclined part; 502. Second block; 5022. Second inclined part; 503. Second elastic element; 6. Groove; 7. Guide rod; 8. Support sleeve; 9. Connecting plate. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0034] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0035] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] like Figures 1-3 As shown, this invention discloses a pressure vessel with a buffer device. The vessel body 1 is used to hold gas or liquid and withstand internal pressure. In actual installation, a support sleeve 8 and a connecting plate 9 can be used to fix and support both ends of the vessel body 1. Specifically, as shown in the figure, the support sleeve 8 is fitted onto the vessel body 1, and the bottom of the support sleeve 8 is placed on the connecting plate 9, thereby fixing the vessel body 1 and forming a stable installation foundation.

[0040] The first protective shell 2 is fitted around the outer periphery of the container body 1 and is in direct contact with the container body 1, providing initial protection and reducing direct damage to the container body 1 from external impacts. The second protective shell 3 is movably fitted around the outer periphery of the first protective shell 2, serving as an external protective layer and bearing the external impact force first. The second protective shell 3 is spaced from the first protective shell 2 and can move relative to the first protective shell 2 when impacted.

[0041] The second protective shell 3 is connected to the first protective shell 2 via a first elastic element 4. Under normal conditions, the first elastic element 4 elastically pushes the second protective shell 3 away from the first protective shell 2, maintaining a certain distance between them. When the second protective shell 3 is impacted and moves relative to the first protective shell 2, the first elastic element 4 deforms accordingly, absorbing impact energy and offsetting part of the impact force through elastic deformation. This improves the impact resistance and safety of the pressure vessel.

[0042] A column can be installed in the middle of the spring. The length of the column should be shorter than the length of the spring. It mainly provides installation and support for the spring. In addition, a damper can be installed inside the spring to increase the shock absorption effect. There are no restrictions on this.

[0043] The first protective shell 2 can be an integral structure or a split structure. In this design, the first protective shell 2 is a split structure, comprising a first inner shell 201 and a second inner shell 202. The first inner shell 201 and the second inner shell 202 are detachably connected by fasteners (such as bolts and nuts) to form a complete protective structure enclosing the container body 1. When it is necessary to install or remove the protective device, the split structure can be quickly assembled or separated by tightening or loosening the fasteners. Furthermore, the split design can be flexibly adjusted according to the size and shape of the container body 1, making it suitable for pressure vessels of different specifications and improving the versatility of the protective device.

[0044] Specifically, in this design, the first inner shell 201 and the second inner shell 202 are semi-shell shaped, conforming to the outer contour of the container body 1, and are spliced ​​together to form a complete cylindrical shape or other shape adapted to the container body 1. Connecting blocks are provided at the edges of the split structure, and bolt holes are provided on the connecting blocks. Bolts are passed through the bolt holes, and fastening is achieved by cooperating with nuts and fixing plates.

[0045] In some examples, the first inner shell 201 is connected to the second protective shell 3 via a first elastic element 4, and the second inner shell 202 is connected to the second protective shell 3 via another first elastic element 4, forming a multi-point elastic support. When the second protective shell 3 is subjected to an external impact, the impact force is simultaneously transmitted to the first inner shell 201 and the second inner shell 202 through multiple first elastic elements 4, absorbing energy through elastic deformation and reducing the impact on the container body 1.

[0046] Specifically, the first elastic element 4 has two sets, each set including two first elastic elements 4. The two first elastic elements 4 in each set are symmetrically distributed on the upper and lower sides of the horizontal line. The axis of the first elastic element 4 (such as a spring) is parallel to the radial direction of the container body 1, thereby ensuring uniform support in the circumferential direction, balancing the circumferential impact force, preventing the second protective shell 3 from tilting due to uneven force, and improving the overall protection.

[0047] In some examples, the second protective shell 3 is a split structure, consisting of two arc-shaped parts: a first outer shell 301 and a second outer shell 302. These parts are connected to the first inner shell 201 and the second inner shell 202 respectively via a first elastic element 4. When an external impact acts on the second protective shell 3, the corresponding part (such as the first outer shell 301) transmits the impact force to the first inner shell 201 through the first elastic element 4, using elastic deformation for buffering; the other part (the second outer shell 302) simultaneously buffers the impact force to the second inner shell 202 through the corresponding first elastic element 4, forming a synergistic buffering effect between the parts.

[0048] In some examples, a buffer assembly 5 is provided between the first outer shell 301 and the first inner shell 201, and between the second outer shell 302 and the second inner shell 202. The buffer assembly 5 includes a first block 501, a second block 502, and a second elastic element 503. The first block 501 is provided on both the first inner shell 201 and the second inner shell 202. The first block 501 on the first inner shell 201 is located between the first inner shell 201 and the first outer shell 301, and the first block 501 on the second inner shell 202 is located between the second inner shell 202 and the second outer shell 302. The first block 501 has a first inclined portion 5011 (such as an inclined plane or an arc surface; in this embodiment, it is an inclined plane).

[0049] A second block 502 is vertically mounted on both the first outer shell 301 and the second outer shell 302. Specifically, the second block 502 is raised and lowered as follows: a groove 6 is formed on the inner surface of the first outer shell 301, and a guide rod 7 is vertically fixed within the groove 6. The two ends of the guide rod 7 are fixedly connected to the bottom and top of the groove 6. A through hole matching the guide rod 7 is formed on the second block 502, which is fitted onto the guide rod 7 and can slide up and down along it. The second block 502 has a second inclined portion 5022 for abutting against the first inclined portion 5011. Simultaneously, the second block 502 and the groove wall of the groove 6 are connected by a second elastic element 503. When neither the first outer shell 301 nor the second outer shell 302 is impacted, the second block 502 approaches the first block 501 under the elastic force of the second elastic element 503, maintaining a certain distance from the first block 501.

[0050] Specifically, taking the first inner shell 201 and the first outer shell 301 as examples, after the first outer shell 301 is impacted, the first outer shell 301 will move. After the first outer shell 301 moves, it will drive the second block 502 to move through the second elastic member 503. After the second block 502 moves, it will move closer and cause the second inclined part 5022 to abut against the first inclined part 5011. Since the first block 501 is fixedly installed on the first inner shell 201, the second block 502 will be subjected to the reaction force of the first block 501, which will compress the second elastic member 503. The compression process of the second elastic member 503 realizes buffering.

[0051] Based on the above principles, this solution proposes two embodiments (taking the first inner shell 201 and the first outer shell 301 as examples):

[0052] like Figure 4 As shown, in the first embodiment, the first block 501 disposed on the first inner shell 201 has two first inclined portions 5011, which are respectively located on the upper and lower sides of the first block 501. The first outer shell 301 is provided with a groove 6, and a guide rod 7 is vertically disposed in the groove 6. A second block 502 is movably disposed in the groove 6 through the guide rod 7. The second block 502 has two second inclined portions 5022, which are respectively disposed on the upper and lower sides of the second block 502 and are located one-to-one on the upper and lower sides of the two first inclined portions 5011. A second elastic member 503 is provided between the top of the second block 502 and the top surface of the groove 6, and between the bottom of the second block 502 and the bottom surface of the groove 6.

[0053] When the upper part of the first outer shell 301 is impacted, the first outer shell 301 moves downward, simultaneously causing the second block 502 to move downward as well. This causes the upper second inclined portion 5022 of the second block 502 to abut against the upper first inclined portion 5011 of the first block 501, compressing the top second elastic element 503. Simultaneously, the bottom second elastic element 503, due to the inertia of the downward movement of the second block 502, also undergoes compressive deformation, but the lower second inclined portion 5022 does not abut against the lower first inclined portion 5011 of the first block 501. The deformation of the two second elastic elements 503 effectively buffers the external impact force; the same principle applies when the lower part is impacted.

[0054] like Figures 1-3 As shown, in the second scheme, the first block 501 mounted on the first inner shell 201 has two first inclined portions 5011, located on the upper and lower sides of the first block 501 respectively. The first outer shell 301 has a groove 6, within which a guide rod 7 is vertically mounted. Two second blocks 502 are movably mounted within the groove 6 via the guide rod 7, and are spaced vertically apart along their height. Each second block 502 is connected to the inner wall of the groove 6 via an independent second elastic element 503. The two second blocks 502 are independent and do not affect each other. When the first outer shell 301 is impacted, the second inclined portion 5022 of the upper second block 502 abuts against the upper first inclined portion 5011 of the first block 501, compressing the upper second elastic element 503; the same applies to the lower side.

[0055] In some examples, a buffer assembly 5 is added between the second outer shell 302 and the second inner shell 202. Its structure is symmetrical to the buffer assembly 5 of the first outer shell 301, including a groove 6, a guide rod 7, a first block 501, a second block 502, and a second elastic element 503. The two sets of buffer assemblies 5 are symmetrically arranged on the first outer shell 301 and the second outer shell 302, ensuring that the pressure vessel has buffering capacity throughout its circumferential range. The symmetrical buffering design can counteract the torque generated by the impact force, preventing the second protective shell 3 from twisting or tilting due to unilateral force, ensuring the coaxiality of the first protective shell 2 and the container body 1, and avoiding buffering failure or damage to the container body 1 due to structural misalignment.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pressure vessel with a buffer device, characterized in that, include: Container body(1); The first protective shell (2) is fitted around the outer periphery of the container body (1); The second protective shell (3) is movably fitted around the outer periphery of the first protective shell (2) and is spaced apart from the first protective shell (2); The first elastic element (4) has its two ends respectively disposed on the first protective shell (2) and the second protective shell (3), and is used to elastically push the second protective shell (3) away from the first protective shell (2).

2. A pressure vessel with a buffer device according to claim 1, characterized in that, The first protective shell (2) is a split structure, including a first inner shell (201) and a second inner shell (202), and the first inner shell (201) and the second inner shell (202) are detachably connected by fasteners.

3. A pressure vessel with a buffer device according to claim 2, characterized in that, The first elastic element (4) has at least two, at least one of the first elastic element (4) has its two ends respectively disposed on the first inner shell (201) and the second protective shell (3), and at least one of the first elastic element (4) has its two ends respectively disposed on the second inner shell (202) and the second protective shell (3).

4. A pressure vessel with a buffer device according to claim 3, characterized in that, The first elastic element (4) is arranged in a direction parallel to the radial direction of the container body (1); The first elastic element (4) has two sets, one set is disposed between the first inner shell (201) and the second protective shell (3), and the other set is disposed between the second inner shell (202) and the second protective shell (3); Each group contains two of the first elastic elements (4), and the first elastic elements (4) in each group are symmetrically located on the upper and lower sides of the horizontal line.

5. A pressure vessel with a buffer device according to any one of claims 2-4, characterized in that, The second protective shell (3) is a split structure. The second protective shell (3) includes a first outer shell (301) and a second outer shell (302). The first outer shell (301) and the second outer shell (302) are arc-shaped. The first outer shell (301) is connected to the first inner shell (201) through the first elastic member (4). The second outer shell (302) is connected to the second inner shell (202) through the first elastic member (4).

6. A pressure vessel with a buffer device according to claim 5, characterized in that, It also includes a buffer component (5), which comprises: A first block (501) is disposed on the first inner shell (201) and located between the first inner shell (201) and the first outer shell (301). The first block (501) has a first inclined portion (5011). The second block (502) is raised and lowered on the first outer shell (301) and extends close to the first block (501). The second block (502) has a second inclined portion (5022) for abutting against the first inclined portion (5011). The second elastic element (503) has its two ends respectively disposed on the second block (502) and the first outer shell (301) for elastically pushing the second block (502).

7. A pressure vessel with a buffer device according to claim 6, characterized in that, The first block (501) has two first inclined portions (5011), which are located on the upper and lower sides of the first block (501), respectively. The second block (502) has two second inclined portions (5022), which are located on the upper and lower sides of the two first inclined portions (5011), respectively.

8. A pressure vessel with a buffer device according to claim 6, characterized in that, The first block (501) has two first inclined portions (5011), which are located on the upper and lower sides of the first block (501), respectively. There are two second blocks (502) arranged at intervals along the height direction, and there are two corresponding second elastic members (503). The two second blocks (502) are respectively connected to the first outer shell (301) through the two second elastic members (503).

9. A pressure vessel with a buffer device according to claim 7 or 8, characterized in that, The first outer shell (301) has a groove (6), and a guide rod (7) is provided vertically inside the groove (6). The second block (502) is movably disposed on the guide rod (7). The two ends of the second elastic member (503) are respectively disposed at the bottom of the groove (6) of the second block (502) and the groove (6).

10. A pressure vessel with a buffer device according to claim 9, characterized in that, The second outer shell (302) also has a groove (6) and a guide rod (7). The buffer assembly (5) has two sets. A set of the buffer assembly (5) is also provided between the second outer shell (302) and the second inner shell (202). The first block (501) of the buffer assembly (5) is provided on the second inner shell (202). The second block (502) is raised and lowered on the guide rod (7) of the second outer shell (302). The two ends of the second elastic member (503) are respectively provided on the second block (502) and the bottom of the groove (6).

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