Oil pipeline bracket with buffer unloading protection mechanism

Abstract

The invention discloses an oil pipeline bracket with a buffering force unloading protection mechanism. The bracket uses an upper pressure ring and a lower bearing seat as a basic structure for fixing the oil pipeline, and optimizes a bottom supporting box at the midpoint position of the lower bearing seat. Compared with the upper pressure ring and the lower bearing seat, the bottom supporting box does not actively participate in the fixing process of the oil pipeline. Instead, after the oil pipeline is fixed, a force spring frame therein undergoes a directional bending deformation process, and supports the oil pipeline at both sides through a conversion process of an inclined wedge block and in cooperation with a top supporting block. The purpose is to cooperate with stress fluctuations generated when a medium flow changes. Specifically, the force spring frame actively bears the stress change and performs secondary differential force support on the oil pipeline, and a cooperative spring frame is simultaneously added, which is mainly used to change the secondary fixing process of the inner clamping half ring on the oil pipeline, and realizes force unloading through multiple force dispersion processes to reduce the workload on the oil pipeline and the supporting structure.

Description

Technical Field

[0001] The invention relates to the technical field of oil pipelines, and in particular to an oil pipeline bracket with a buffer unloading protection mechanism. Background Art

[0002] The changes in temperature and flow rate during oil transportation directly affect the stability of the pipeline structure. This is manifested in the following ways: when the fluid is transported in the pipeline, the fluid exerts pressure on the inner wall of the pipeline, and this pressure causes tensile stress on the inner wall of the pipeline;

[0003] The pipe wall generates thermal stress due to temperature changes. When the medium temperature rises, the pipe will expand and generate thermal expansion stress. When the temperature drops, the pipe will contract and generate thermal contraction stress. When the pipe is subjected to the impact or vibration load brought by the flow of the fluid, the pipe will be affected by inertial stress. This stress usually occurs during the start-up, shutdown or adjustment of the pipeline system.

[0004] It can be understood that: during the oil transportation process, when the temperature and flow rate change, the pipeline structure and pipeline bracket load increase, and even the connection status of each pipeline connection is affected due to multiple stress changes. In particular, the inertia generated when the medium flow rate in the pipeline changes significantly will have a greater impact. This application proposes a solution to this problem. Summary of the invention

[0005] The purpose of the present invention is to provide an oil pipeline bracket with a buffer unloading protection mechanism. The pipeline structure and bracket structure used for transporting oil are described. During the oil transportation process, the fluctuation of temperature and flow rate parameters increases the load of the pipeline structure and the pipeline bracket, and may also affect the structural stability of each pipeline connection.

[0006] The object of the present invention can be achieved by the following technical scheme: an oil pipeline bracket with a buffer unloading protection mechanism comprises an upper pressure ring and a lower support seat arranged from top to bottom, the upper pressure ring and the lower support seat are used to fix the oil pipeline, and a bottom support box is arranged at the midpoint of the lower side of the lower support seat;

[0007] The bottom support box is parallel to the setting direction of the oil delivery pipe, and a force spring frame is arranged on the bottom support box, and directional sliders are installed at both ends of the force spring frame, and the directional sliders are slidably connected inside the bottom support box along the setting direction of the oil delivery pipe;

[0008] The bottom support box is provided with force-bearing oblique wedge blocks at both sides of the directional sliding block. The force-bearing oblique wedge blocks are slidably connected in the bottom support box along a linear direction pointing to the center of the oil pipeline, and a top support block is provided on the force-bearing oblique wedge blocks.

[0009] It is further configured that: the bottom support box is rotatably connected to the lower support seat, and the rotation point of the bottom support box relative to the lower support seat and the center point of the force spring frame are not on the same vertical plane.

[0010] It is further configured as follows: the upper pressure ring is a solid structure, a cavity is opened on the inner wall position of the lower support seat corresponding to the upper pressure ring, and an inner clamping half ring is arranged in the cavity of the lower support seat, and a cooperative spring frame is installed in the middle position of the inner clamping half ring.

[0011] It is further configured as follows: the upper end surface of the inner clamping half ring is higher than the upper surface position of the lower bearing seat, and the cooperative spring frame is located at the lower side position of the force spring frame.

[0012] It is further configured as follows: the cross-sections of the force spring frame and the cooperative spring frame along the vertical direction are in an upwardly curved arch shape, and the upper curved surface of the force spring frame matches the outer curved surface of the oil delivery pipe.

[0013] It is further configured that: the outer wall of one side of the directional sliding block close to the force-bearing inclined wedge block is configured as an inclined surface, and the force-bearing inclined wedge block performs a relative sliding action with the directional sliding block via the inclined surface.

[0014] It is further configured as follows: a ball head transmission rod is arranged between the force-bearing inclined wedge block and the top supporting block, and the arrangement lengths of the two ball head transmission rods are different along the arrangement direction of the oil delivery pipe.

[0015] The present invention has the following beneficial effects:

[0016] 1. The overall structure uses the upper pressure ring and the lower bearing seat as the basic structure for fixing the oil pipeline. The key is the bottom support box optimized for the midpoint position of the lower bearing seat. The bottom support box will not actively participate in the fixing process of the oil pipeline in the initial state. Specifically, after the upper pressure ring and the lower bearing seat fix the oil pipeline, the oil pipeline causes a directional bending deformation process due to the extrusion force of the oil pipeline on the stressed spring frame, so that the oil pipeline is supported at both sides through the conversion process of the inclined wedge block and the top support block. When the oil medium flow inside the oil pipeline fluctuates, the top support blocks at two positions are used to perform secondary differential support on the oil pipeline;

[0017] 2. Based on the above content, based on the setting position of the stressed spring frame, a corresponding cooperative spring frame is added simultaneously. The cooperative spring frame needs to accept the extrusion force from the stressed spring frame and further disperse the extrusion force of the stressed spring frame. To this end, the specific setting position of the cooperative spring frame is limited, and the support distance of the two top supporting blocks to the oil pipeline is limited. When the stress of the oil pipeline fluctuates significantly, on the one hand, secondary differential support is achieved through the two top supporting blocks. The key is to change the secondary fixing process of the inner clamping half ring to the oil pipeline through the cooperative spring frame, and realize force unloading through multiple force dispersion processes to reduce the workload of the oil pipeline and the supporting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic structural diagram of the oil pipeline bracket with a buffer unloading protection mechanism proposed by the present invention;

[0020] Figure 2 The oil pipeline bracket with a buffer unloading protection mechanism proposed by the present invention Figure 1 A front view of

[0021] Figure 3 The oil pipeline bracket with a buffer unloading protection mechanism proposed by the present invention Figure 1 Split diagram of ;

[0022] Figure 4 This is a schematic structural diagram of the bottom support box in the petroleum pipeline support with a buffer unloading protection mechanism proposed by the present invention;

[0023] Figure 5 The oil pipeline bracket with a buffer unloading protection mechanism proposed by the present invention Figure 4 A side cross-sectional view of

[0024] Figure 6 The oil pipeline bracket with a buffer unloading protection mechanism proposed by the present invention Figure 4 Split diagram of ;

[0025] Figure 7 The oil pipeline bracket with a buffer unloading protection mechanism proposed by the present invention Figure 1 Horizontal cross-section diagram.

[0026] In the figure: 1. upper pressure ring; 2. lower bearing seat; 3. inner clamp half ring; 4. bottom support box; 5. force spring frame; 6. cooperative spring frame; 7. top support block; 8. directional slider; 9. force oblique wedge block. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1: The pipeline structure and bracket structure for transporting oil are described. During the oil transportation process, the fluctuation of temperature and flow rate increases the load on the pipeline structure and the pipeline bracket, and may also affect the structural stability of each pipeline connection. For this, the present application proposes a solution:

[0029] Reference Figures 1 to 7 The oil pipeline bracket with a buffer unloading protection mechanism in this embodiment includes an upper pressure ring 1 and a lower support seat 2 arranged from top to bottom, the upper pressure ring 1 and the lower support seat 2 are used to fix the oil pipeline, and a bottom support box 4 is arranged at the midpoint of the lower side of the lower support seat 2;

[0030] The bottom support box 4 is parallel to the setting direction of the oil delivery pipe, and a force spring frame 5 is provided on the bottom support box 4. Directional sliders 8 are installed at both ends of the force spring frame 5. The directional sliders 8 are slidably connected inside the bottom support box 4 along the setting direction of the oil delivery pipe.

[0031] The bottom support box 4 is provided with load-bearing inclined wedge blocks 9 on both sides of the directional slider 8. The load-bearing inclined wedge blocks 9 are slidably connected in the bottom support box 4 along a linear direction pointing to the center of the oil pipeline, and a top support block 7 is provided on the load-bearing inclined wedge blocks 9.

[0032] Basic principle:

[0033] The pressure of the fluid in the pipeline will cause internal stress in the pipeline. This stress is called internal pressure stress. As the internal pressure increases, the bending and deformation of the pipeline will increase. Specifically, it is the pressure generated by the fluid inside the pipeline on the pipeline itself. Without considering the material of the pipeline itself, the flow rate of the pipeline medium also has an important influence on the flow resistance loss of the pipeline. When the medium flow rate is too high, a lot of resistance will be generated, resulting in an increase in the flow resistance loss of the pipeline;

[0034] When the flow rate is too low, the pipeline flow resistance loss will be insufficient, affecting the normal working process of the pipeline. In the actual operation process, when the oil medium continues to flow through the oil pipeline, when the oil medium flow rate continues to fluctuate, it will cause the pipeline to vibrate instantly, and also increase the pressure inside the pipeline. And because the oil pipeline is formed by a combination of single sections of pipelines, when a section of the oil pipeline vibrates, it will directly affect the connection stability between each section of the pipeline.

[0035] by Figure 1 and Figure 2 For a brief description, the lower support 2 is fixedly installed according to the laying path of the oil pipeline, and the oil pipeline is directly fixed by the upper pressure ring 1. The diameter requirements of the lower support 2 and the upper pressure ring 1 are not described in the present invention.

[0036] It should be noted that: the structure of the lower support seat 2 is improved. Since the lower support seat 2 is essentially a semi-ring, a bottom support box 4 is set at the midpoint of the lower side of the lower support seat 2. The upper curved surface of the bottom support box 4 matches the inner curved surface of the lower support seat 2, but the upper curved surface of the bottom support box 4 is lower than the inner curved surface of the lower support seat 2. Therefore, when the oil pipeline is fixed, the force spring frame 5 and the bottom support box 4 will not actively participate in the fixing action of the oil pipeline. However, after the upper pressure ring 1 cooperates with the lower support seat 2 to complete the fixing of the oil pipeline, the oil pipeline will generate downward pressure on the force spring frame 5.

[0037] This section refers to Figure 5 Because the stressed spring frame 5 undergoes a downward bending deformation process, the two directional sliders 8 will slide inside the bottom support box 4 in a relatively distant direction, and because of the inclined design between the directional sliders 8 and the stressed inclined wedge block 9, the stressed inclined wedge block 9 will move in a linear direction pointing to the center point of the oil pipeline. In essence, the top support block 7 provides secondary support for the oil pipeline.

[0038] Embodiment 2: Supplementary explanation of the setting position and structural characteristics of the bottom support box in Embodiment 1:

[0039] The bottom support box 4 is rotatably connected to the lower support seat 2, and the rotation point of the bottom support box 4 relative to the lower support seat 2 and the center point of the force spring frame 5 are not on the same vertical plane. The cross-section of the force spring frame 5 and the cooperative spring frame 6 along the vertical direction is in the shape of an upwardly curved arch, and the upper curved surface of the force spring frame 5 matches the outer curved surface of the oil pipeline. The outer wall of the side where the directional slider 8 and the force inclined wedge block 9 are close is set as an inclined surface, and the force inclined wedge block 9 performs relative sliding movement with the directional slider 8 through the inclined surface. A ball head transmission rod is set between the force inclined wedge block 9 and the top support block 7, and the setting lengths of the two ball head transmission rods are different along the setting direction of the oil pipeline.

[0040] Solution description: In combination with the basic principle in the first embodiment, the following is a supplementary explanation. First, the setting position of the bottom support box 4 needs to be limited to ensure that the bottom support box 4 is set along the setting direction of the oil pipeline. The key is to ensure that the two top support blocks 7 move in the direction of the oil pipeline at the same time. For this, it is necessary to ensure that an inclined surface that can disperse the force is provided between the directional slider 8 and the force-bearing inclined wedge block 9 to ensure that the force-bearing inclined wedge block 9 drives the top support block 7 to move upward. This part is the basic principle in this embodiment;

[0041] However, the key is to ensure that the bottom bracket box 4 and the lower support seat 2 are kept in rotational connection, and in order to ensure that the two force-bearing inclined wedge blocks 9 bear the stress from the force-bearing spring frame 5 in an evenly divided state, it is necessary to ensure that the two force-bearing inclined wedge blocks 9 are arranged in a mirror-image symmetric manner along the setting direction of the bottom bracket box 4. It can be understood that the midpoint position of the force-bearing spring frame 5 and the bottom bracket box 4 is on the same vertical plane, but it is necessary to further restrict the rotation point of the bottom bracket box 4 relative to the lower support seat 2 and the center point of the force-bearing spring frame 5 from being on the same vertical plane;

[0042] Combination Figure 5 Explain that if the oil pipeline is along Figure 5 The setting direction of the bottom support box 4 is set, and the oil medium is transmitted from right to left. After the oil pipeline is fixed, the overall bottom support box 4 is inclined to the lower left and the upper right. However, the two force-bearing inclined wedge blocks 9 move at the same time to ensure that the two top support blocks 7 contact the oil pipeline at the same time. On the basis of fixing the oil pipeline by the lower bearing seat 2 and the upper pressure ring 1, the two top support blocks 7 provide secondary support to the oil pipeline.

[0043] However, because the bottom support box 4 is in an inclined state, when the oil medium flow rate inside the oil pipeline fluctuates greatly, a large inertial stress is generated inside the entire oil pipeline. It can be understood that the oil pipeline tends to move forward. In this state, on the one hand, an overload effect is generated on the oil pipeline itself, and on the other hand, a large stress change is caused to the pipeline fixing structure. In this embodiment, the stress spring frame 5 first bears the stress change of the oil pipeline, so that a secondary deformation process occurs.

[0044] However, due to the existence of inertial stress, the bending direction of the force spring frame 5 is not evenly distributed in both directions, so that the directional slider 8 on the left side undergoes a small secondary sliding process, so the top support block 7 on the left side further supports the oil pipeline, or causes the bottom support box 4 to further tilt slightly;

[0045] The key technology of this embodiment is that when the oil pipeline fluctuates due to the flow of the oil medium inside it, the oil pipeline first directly generates inertial stress, but the oil pipeline does not affect the inertial stress to directly move, on the contrary, the inertial stress change is borne by the force spring frame 5, and the force spring frame 5 first receives the inertial stress change to undergo secondary deformation, and then performs an unequal force dispersion process on the two directional sliders 8, which eventually causes the bottom support box 4 to rotate slightly, and the two top support blocks 7 perform secondary support and fixation on the oil pipeline, so as to stabilize the adaptability of the oil pipeline.

[0046] Embodiment 3: The inner clamping half ring is explained in combination with the technical solution in Embodiment 2:

[0047] The upper pressure ring 1 is a solid structure, and a cavity is opened on the inner wall position of the lower bearing seat 2 corresponding to the upper pressure ring 1, and an inner clamping half ring 3 is arranged in the cavity of the lower bearing seat 2, and a cooperative spring frame 6 is installed in the middle position of the inner clamping half ring 3, and the upper end surface of the inner clamping half ring 3 is higher than the upper surface position of the lower bearing seat 2, and the cooperative spring frame 6 is located at the lower side position of the force spring frame 5.

[0048] The following supplementary explanations are provided for Example 1 and Example 2:

[0049] S1: When the oil pipeline is fixed by the lower bearing seat 2 and the upper pressure ring 1, the force spring frame 5 has undergone an adaptive deformation process, and the cooperative spring frame 6 is further arranged according to the setting direction of the bottom support box 4. Its essence is to ensure that the cooperative spring frame 6 receives the extrusion force from the force spring frame 5, and to ensure that the cooperative spring frame 6 will also be deformed synchronously after the pressure connection process of the force spring frame 5. However, the difference from the deformation process of the force spring frame 5 is that the force spring frame 5 undergoes bidirectional diffusion in the direction parallel to the oil pipeline after being squeezed by the oil pipeline, but the cooperative spring frame 6 will also undergo bidirectional diffusion. The key is that the bidirectional diffusion direction is completely perpendicular to the direction of the force spring frame 5.

[0050] S2: Based on S1, the cooperative spring frame 6 is used to connect the inner clamp half ring 3, the inner clamp half ring 3 is completely placed in the lower bearing seat 2, and under the action of the upper pressure ring 1, the two inner clamp half rings 3 are squeezed by the oil pipeline, causing the cooperative spring frame 6 to bend and deform upward, thereby generating an upward thrust on the force spring frame 5, and the inner clamp half ring 3 also serves as a clamping structure for the oil pipeline;

[0051] However, the key point to be explained is: as described in the second embodiment and the related contents of S1, when the force spring frame 5 is squeezed by the oil pipeline, it will also generate downward pressure on the cooperative spring frame 6. In essence, the two inner clamping half rings 3 will also slide in the cavity of the lower support seat 2. However, because the upper end of the lower support seat 2 is completely blocked by the upper pressure ring 1, it is difficult for the two inner clamping half rings 3 to continue to slide upward. However, under the bidirectional action of the force spring frame 5-cooperative spring frame 6, a small sliding process occurs. The purpose is:

[0052] On the one hand, the deformation process of the force spring frame 5 is reversely restricted by the restricted sliding process of the inner clamping half ring 3, so that the inertial stress generated by the medium flow inside the oil pipeline can be transferred to the clamping process outside the oil pipeline. On the other hand, the fixing process of the inner clamping half ring 3 on the oil pipeline can be further improved by the deformation process of the force spring frame 5.

[0053] In summary, the upper pressure ring and the lower bearing seat are used as the basic structure for fixing the oil pipeline, and the bottom support box is optimized for the midpoint position of the lower bearing seat. Compared with the upper pressure ring and the lower bearing seat, the bottom support box does not actively participate in the fixing process of the oil pipeline. Instead, after the oil pipeline is fixed, the force spring frame therein undergoes a directional bending deformation process, thereby supporting the oil pipeline at both sides through the conversion process of the inclined wedge block and in cooperation with the top support block. The purpose is to cooperate with the stress fluctuations generated when the medium flow changes. Specifically, the force spring frame actively bears the stress changes and performs secondary differential force support on the oil pipeline, and a cooperative spring frame is added simultaneously, which is mainly used to change the secondary fixing process of the inner clamp half ring to the oil pipeline, and unload the force through multiple force dispersion processes to reduce the workload of the oil pipeline and the supporting structure.

[0054] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A petroleum pipeline bracket with a buffer unloading protection mechanism, comprising an upper pressure ring (1) and a lower bearing seat (2) arranged from top to bottom, characterized in that: The upper pressure ring (1) and the lower support seat (2) are used to fix the oil delivery pipe, and a bottom support box (4) is arranged at the midpoint of the lower side of the lower support seat (2); The bottom support box (4) is parallel to the setting direction of the oil delivery pipe, and a force spring frame (5) is provided on the bottom support box (4). Directional slide blocks (8) are installed at both ends of the force spring frame (5). The directed slide blocks (8) are slidably connected inside the bottom support box (4) along the setting direction of the oil delivery pipe. The bottom support box (4) is provided with force-bearing inclined wedge blocks (9) at positions on both sides corresponding to the directional sliding block (8); the force-bearing inclined wedge blocks (9) are slidably connected in a linear direction pointing to the center of the oil pipeline in the bottom support box (4), and a top support block (7) is provided on the force-bearing inclined wedge blocks (9); The upper pressure ring (1) is a solid structure. The lower support (2) is provided with a cavity on the inner wall corresponding to the upper pressure ring (1). An inner clamping half ring (3) is provided in the cavity of the lower support (2). An assisted spring frame (6) is installed at the middle position of the inner clamping half ring (3). The upper end surface of the inner clamping half ring (3) is higher than the upper surface position of the lower support (2). The assisted spring frame (6) is located at the lower side of the force spring frame (5). The cross-section of the force spring frame (5) and the assisted spring frame (6) along the vertical direction is in the shape of an upwardly curved arch. The upper curved surface of the force spring frame (5) matches the outer curved surface of the oil pipeline. The bottom support box (4) and the lower support (2) are rotatably connected. The rotation point of the bottom support box (4) relative to the lower support (2) and the center point of the force spring frame (5) are not on the same vertical plane.

2. The oil pipeline bracket with a buffer unloading protection mechanism according to claim 1 is characterized in that: The outer wall of the directional sliding block (8) on one side close to the force-bearing inclined wedge block (9) is arranged as an inclined surface, and the force-bearing inclined wedge block (9) performs a relative sliding action with the directional sliding block (8) via the inclined surface.

3. The oil pipeline bracket with a buffer unloading protection mechanism according to claim 2 is characterized in that: A ball head transmission rod is arranged between the force-bearing inclined wedge block (9) and the supporting block (7), and the arrangement lengths of the two ball head transmission rods are different along the arrangement direction of the oil delivery pipe.

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