A sealing flange for oil pipeline

Abstract

The present invention relates to the technical field of flanges and discloses a sealing flange for petroleum pipelines, comprising a shell, a feed pipe, and a discharge pipe. The side wall of the shell is provided with a sealing mechanism, and the side wall of the sealing mechanism is provided with two fastening components for restricting and fixing a pipe body connected to the flange. Before use, the present invention is fixedly connected to the feed pipe and the discharge pipe at one end close to the shell by two interfaces, and is spirally connected to the outer walls of the feed pipe and the discharge pipe by two outer flanges. Stability is achieved by extruding the connected interfaces, and a wedge-shaped sealing ring is placed at one end of the interface close to the shell. The outer flange is spirally connected to the inner wall of the shell and squeezes the wedge-shaped sealing ring at the same time, thereby increasing the contact surface and closing the remaining gap to achieve the effect of sealing. A threaded connection is added on the basis of the original bolt connection to improve the sealing performance of the device by increasing the contact surface and the extrusion of the bolts.

Description

Technical Field

[0001] The invention relates to the technical field of flanges, in particular to a sealing flange for petroleum pipelines. Background Art

[0002] A sealing flange is a sealing material used to connect pipes. A flange is a part that connects shafts to each other and is used to connect pipe ends or two devices. A sealing flange usually consists of a flange and a sealing gasket.

[0003] During flange installation, multiple bolts are usually used to connect the pipe and flange. A seal is formed by squeezing the flange and gasket against each other. The bolts are twisted to move the flange and pipe toward each other until they come into contact, thereby providing auxiliary fixation. The flange connection used in the process has a small contact surface, and the internal material may be affected by the conveying potential energy during transportation, causing the pipe body and the flange connection to vibrate, resulting in dislocation and poor connection stability. Summary of the Invention

[0004] The object of the present invention is to provide a sealing flange for a petroleum pipeline to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention relates to a sealing flange for a petroleum pipeline, comprising a shell, a feed pipe, and a discharge pipe, and further comprising: a sealing mechanism, wherein the side walls of the sealing mechanism are provided with two fastening assemblies; the inner walls of the fastening assemblies are threadedly connected to the outer wall of the shell, and the fastening assemblies fix and restrict the outer walls of the feed pipe and the discharge pipe; an interference mechanism, wherein the interference mechanism is arranged at the inner wall of the shell and extends to the outer wall, and is used to interfere with the flow of materials; and a movable mechanism, wherein the movable mechanism is arranged at the inner wall of the shell and extends to the outer wall, and is used to disperse the flow of materials; wherein a through circular through hole 1 is provided on the outer surface of the shell, a through circular through hole 2 is provided on the outer wall of the shell, and a circular cavity is provided inside the first circular through hole.

[0007] Furthermore, the sealing mechanism includes: a fastening assembly, which is rotatably connected to the side wall of the shell through a rotating member; the rotating member includes two outer flanges threadedly connected to the outer wall of the shell.

[0008] Furthermore, the interference mechanism includes: a floating component, which slides on the inner wall of the shell through a sliding member; the sliding member includes a vertical rod slidably connected to an inner wall of the circular through hole; a pendulum assembly, which is fixed to the inside of the floating component through a fixing member; the fixing member includes an L-shaped connecting rod fixedly connected to the inside of the floating component.

[0009] Furthermore, the movable mechanism includes: a swinging assembly, which is rotatably connected to the outer wall of the pendulum assembly through a rotating member; the rotating member includes a connecting arm 2 that is rotatably connected to the outer wall of the pendulum assembly; and a limiting assembly, which is rotatably connected to the closing table inside the limiting assembly through a limiting member.

[0010] Furthermore, two outer flanges are threadedly connected to the side wall of the shell, and the two outer flanges are threadedly connected to the feed pipe and the discharge pipe on the side away from the shell. An interface is provided inside the outer flange, and the two interfaces are fixedly connected to the side walls of the feed pipe and the discharge pipe. A wedge-shaped sealing ring is movably connected to the side of the interface close to the shell; wherein, the wedge-shaped sealing ring is in contact with the inner wall of the shell.

[0011] Furthermore, the vertical pole is slidably connected to the inside of the circular through hole 1, the bottom of the vertical pole is fixedly connected to the spring rod, the bottom of the spring rod is fixedly connected to the column, and the outer wall of the vertical pole is fixedly connected to the connecting arm 1; wherein, the end of the spring of the spring rod away from the spring rod is fixedly connected to the inner wall of the circular cavity.

[0012] Furthermore, the L-shaped connecting rod is inserted into the inside of the circular through hole three near the end of the column, the side wall of the L-shaped connecting rod away from the column is rotatably connected to a hollow hammer, and the inside of the connecting arm one is rotatably connected to an arc arm.

[0013] Furthermore, one end of the arc-shaped arm away from the connecting arm 1 is rotatably connected to the inside of the connecting arm 2, and one side of the connecting arm 2 away from the arc-shaped arm is fixedly connected to the connecting rod.

[0014] Furthermore, a swing leaf column is fixedly connected to the bottom of the connecting rod; wherein, the outer wall of the connecting rod slides on the inner wall of the second circular through hole.

[0015] Furthermore, the inner rotation of the swing leaf column is connected to a closing platform.

[0016] The present invention has the following beneficial effects:

[0017] 1. Before use, the present invention is fixedly connected to the feed pipe and the discharge pipe at one end close to the shell by two interfaces, and is spirally connected to the outer walls of the feed pipe and the discharge pipe by two outer flanges. The interface is stabilized by extrusion connection, and a wedge-shaped sealing ring is placed at the end of the interface close to the shell. The outer flange is spirally connected to the inner wall of the shell and squeezes the wedge-shaped sealing ring at the same time, increasing the contact surface and closing the remaining gap to achieve the effect of sealing. A threaded connection is added on the basis of the original bolt connection to improve the sealing performance of the device by increasing the contact surface and the extrusion of the bolts.

[0018] 2. When the present invention is in use, due to the sealing performance, when the material is transported inside, the internal material circulation speed is fast and the flow potential energy carried is large, which will cause a certain degree of impact on the pipe body and the flange connection, and there is inevitable amplitude vibration. The fluid enters the shell and impacts the hollow hammer. The hollow hammer is hollow inside and will swing with different amplitudes when impacted by the fluid. The swing will affect the fluid path and interfere with the fluid flow. The L-shaped connecting rod is placed at a right angle inside the column. Under the action of the fluid, the hollow hammer affects the rotation of the column to interfere with the material flow on the other side and repeat the behavior, weakening the fluid potential energy, improving the stability of the flange-connected pipeline, and facilitating long-term use.

[0019] 3. When the present invention is in use, at the installation end or during the process, due to the influence of the closed outlet, the fluid transmission itself carries potential energy, which may cause a water hammer effect. In order to protect the connection end between the flange and the pipeline and the flange pipe body itself, when the fluid passes through the above-mentioned effect, the rotation of the column will cause the pair of arc arms of the connecting arm to interfere, pushing the arc arm away from the connecting arm on one side of the connecting arm. The two pairs of connecting rods and the swing leaf column swing. During the swinging process, part of the material fluid will produce a cavity due to the swing of the swing leaf column, and the cavity will be filled with the surrounding fluid to produce impact fluctuations. The effect of the fluctuation will weaken the potential energy carried by the fluid itself. Secondly, the water hammer effect generated when the discharge is closed will impact the surface of the swing leaf column, and the fluctuation of the fluid filling the cavity will partially offset and weaken the potential energy of the water hammer reaction, thereby improving the use of the pipeline and flange and promoting the protection of the pipeline by dispersing the flow potential energy.

[0020] 4. When the present invention is in use, the swinging of the swinging leaf column caused by the impact of the fluid will interfere with the fluid. Since the fluid material in this case may have a certain degree of adhesion, the internal rotation of the swinging leaf column is connected to the closing platform, which interferes with the closing platform through the flow direction of the fluid. A cavity inside the swinging leaf column on the other side is provided for the smooth transportation of the fluid. Before the swinging leaf column swings, the fluid impacts the surface of the swinging leaf column and is affected by a certain flow difference of the closing platform. At the same time, when the fluid passes through the swinging leaf column, the shape of the closing platform can disperse part of the fluid diversion. The impact of the fluid causes the closing platform to swing the leaf column one more time, thereby changing the flow difference of the swinging leaf column affected by the fluid, promoting the operation of the swinging leaf column, and improving the usability and stability of the device.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the main body of the present invention;

[0026] Figure 4 This is a schematic diagram of the arc-shaped arm structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the L-shaped connecting rod structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the wedge-shaped sealing ring structure of the present invention;

[0029] Figure 7 It is a schematic diagram of the active mechanism of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the limiting component of the present invention;

[0031] Figure 9 This is a schematic structural diagram of the present invention in a non-working state;

[0032] Figure 10 This is a structural diagram of the present invention before the rotation working state:

[0033] Figure 11 This is a schematic diagram of the structure of the present invention after the rotation working state;

[0034] Figure 12 This is a structural diagram of the present invention before resetting the working state.

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] In the figure: 1. Sealing mechanism; 11. Fastening assembly; 12. Housing; 13. Feed pipe; 14. Discharge pipe; 111. Outer flange; 112. Interface; 113. Wedge-shaped sealing ring; 2. Interference mechanism; 21. Floating assembly; 22. Pendulum assembly; 211. Vertical pole; 212. Spring rod; 213. Vertical column; 214. Connecting arm 1; 221. L-shaped connecting rod; 222. Hollow hammer; 223. Arc arm; 3. Movable mechanism; 31. Swinging assembly; 32. Limiting assembly; 311. Connecting arm 2; 312. Connecting rod; 313. Swinging leaf column; 321. Closing platform. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0038] See also Figures 1-12 As shown, the present invention is a sealing flange for oil pipelines, comprising a housing 12, a feed pipe 13, and a discharge pipe 14, and further comprising: a sealing mechanism 1, wherein the side wall of the sealing mechanism 1 is provided with two fastening assemblies 11; the inner wall of the fastening assembly 11 is threadedly connected to the outer wall of the housing 12, and the fastening assembly 11 fixes and restricts the outer wall of the feed pipe 13 and the discharge pipe 14; an interference mechanism 2, which is provided at the inner wall of the housing 12 and extends to the outer wall for interfering with the flow of materials; this design facilitates the interference mechanism 2 to drive the subsequent parts to move by the fluid; a movable mechanism 3, which is movable The mechanism 3 is arranged on the inner wall of the shell 12 and extends to the outer wall, which is used to disperse the flow of materials; this design is to interfere with the flow potential energy of the fluid after transmission, generate relative fluctuations to weaken the potential energy carried by the fluid; wherein, the outer surface of the shell 12 is provided with a through circular through hole 1, the outer wall of the shell 12 is provided with a through circular through hole 2, and a circular cavity is provided inside the circular through hole 1; this design is that parts can be placed at the through holes of this design to perform working movements, so as to interfere with the flowing fluid without occupying too much space inside the tube body, thereby facilitating the flow of fluid and interfering with it.

[0039] The sealing mechanism 1 includes: a fastening assembly 11, which is rotatably connected to the side wall of the housing 12 through a rotating member; the rotating member includes two outer flanges 111 threadedly connected to the outer wall of the housing 12; this design increases the threaded connection, assists the threaded connection in the matching process, strengthens the fastening effect between the pipe body and the flange, and compresses the remaining space to achieve a further sealing effect.

[0040] The interference mechanism 2 includes: a floating component 21, which slides on the inner wall of the shell 12 through a sliding member; the sliding member includes a vertical rod 211 slidably connected to the inner wall of the circular through hole; a pendulum component 22, which is fixed to the inside of the floating component 21 through a fixing member; the fixing member includes an L-shaped connecting rod 221 fixedly connected to the inside of the floating component 21.

[0041] The movable mechanism 3 includes: a swinging assembly 31, which is rotatably connected to the outer wall of the pendulum assembly 22 through a rotating member; the rotating member includes a connecting arm 2 311 rotatably connected to the outer wall of the pendulum assembly 22; and a limiting assembly 32, which is rotatably connected to a closing platform 321 inside the limiting assembly 32 through a limiting member.

[0042] Two outer flanges 111 are threadedly connected to the side wall of the outer shell 12, and the two outer flanges 111 are threadedly connected to the feed pipe 13 and the discharge pipe 14 on the side away from the outer shell 12. An interface 112 is provided inside the outer flange 111, and the two interfaces 112 are fixedly connected to the side walls of the feed pipe 13 and the discharge pipe 14. The interface 112 is movably connected to the side of the outer shell 12 with a wedge-shaped sealing ring 113, wherein the arrow in the accompanying figure of the specification indicates the flow direction of the fluid entering the pipe body; wherein, the wedge-shaped sealing ring 113 contacts the inner wall of the outer shell 12; this design increases the contact area between the pipeline and the flange, and utilizes the self-locking nature of the thread and the tightening of the bolt to extrude the wedge-shaped sealing ring 113, thereby further increasing the sealing performance.

[0043] The vertical rod 211 is slidably connected to the inside of the circular through hole 1, the bottom of the vertical rod 211 is fixedly connected to the spring rod 212, the bottom of the spring rod 212 is fixedly connected to the column 213, and the outer wall of the vertical rod 211 is fixedly connected to the connecting arm 1 214; wherein, the end of the spring of the spring rod 212 away from the spring rod 212 is fixedly connected to the inner wall of the circular cavity; this design utilizes the impact of fluid to release the impact stress inside the shell 12 through the expansion and contraction of the spring rod 212, thereby providing a slight expansion and contraction auxiliary function.

[0044] The end of the L-shaped connecting rod 221 near the column 213 is inserted into the inside of the circular through hole 3. The side wall of the L-shaped connecting rod 221 away from the column 213 is rotatably connected to the hollow hammer 222, and the interior of the connecting arm 1 214 is rotatably connected to the arc arm 223. This design utilizes the characteristics of the hollow hammer 222 to float in the flowing material, using the potential energy of the fluid to generate rotation behavior, thereby interfering with the flow potential energy of the fluid.

[0045] The end of the arc-shaped arm 223 away from the connecting arm 1 214 is rotatably connected to the inside of the connecting arm 2 311, and the side of the connecting arm 2 311 away from the arc-shaped arm 223 is fixedly connected to the connecting rod 312: This design uses the potential energy of the fluid to transmit the device, and the impact of the fluid is blocked by the resistance of the parts themselves, which can weaken the impact potential energy carried by the fluid to a certain extent.

[0046] The bottom of the connecting rod 312 is fixedly connected to a swinging leaf column 313; wherein, the outer wall of the connecting rod 312 slides inside the circular through hole 2; this design allows the connecting rod 312 to rotate in the inner wall of the outer shell 12, driving the swinging leaf column 313 to swing to generate fluid interference, causing fluctuations, and through the reflection of the fluctuations, weakening the effect of water hammer to a certain extent.

[0047] The internal rotation of the swing leaf column 313 is connected to the closing platform 321; this design allows the closing platform 321 to rotate inside the swing leaf column 313. At the same time, the closing platform 321 will slightly expand the flow space inside the swing leaf column 313 under the influence of the fluid, and generate a flow difference through the impact of the fluid. When a certain amount of fluid material is released, the impact pressure generated on the surface of the swing leaf column 313 during continuous fluid transportation can be reduced, so that the swing leaf column 313 can operate more smoothly when it swings.

[0048] A specific application of this embodiment is: before use, the two outer flanges 111 and the interface 112 are spirally connected to the feed pipe 13 and the discharge pipe 14 respectively, and then the spiral connection is made to the inner wall of the shell 12, and the end of the interface 112 close to the shell 12 is placed on the wedge-shaped sealing ring 113, and the wedge-shaped sealing ring 113 is squeezed into the inner wall of the shell 12 through the interface 112 to increase the contact surface of the interface. The threaded connection and the bolt connection tighten the interface 112 and the shell 12, compressing the remaining gap to form a seal. Because the wedge-shaped sealing ring 113 is wedge-shaped, a gap is left between them, and the wedge-shaped sealing ring 113 can also be tightened to form a seal of the device, so that the pipeline and the flange maintain a horizontal state, as shown in FIG. Figure 9 The posture expressed when the middle tube is empty;

[0049] After the above connection, when the material is transported by the pipeline, the outer shell 12 is slidably connected to the vertical rod 211, and the bottom of the vertical rod 211 is fixedly connected to the spring rod 212, and the bottom of the spring rod 212 is fixedly connected to the column 213. The spring rod 212 acts to release the stress of the spring rod 212 when the fluid hits the column 213, so that it can move inside the outer shell 12. The connecting arm 214 is fixedly connected to the side wall of the vertical rod 211, and the interior of the column 213 is fixedly connected to the L-shaped connecting rod 221, which is used to interfere with the rotation of the column 213. The hollow hammer 222 connected to the L-shaped connecting rod 221 away from the side wall of the column 213 is hollow inside and can float in the material fluid, presenting a Figure 10In the posture before the whole body rotates, the impact potential energy of the fluid drives the L-shaped connecting rod 221 to make the column 213 rotate in a circle. The top connecting arm 214 is fixed and rotated to be connected to the arc arm 223, which will move under the influence. The movement of the hollow hammer 222 will interfere with the flow of the fluid, weaken the fluid potential energy, and reduce the burden on the inside of the tube body. This behavior is shown as Figure 11 The posture after the middle rotation;

[0050] The affected movement of the arc-shaped arm 223 pushes the second connecting arm 311 to rotate, and the connecting rod 312 at the bottom of the second connecting arm 311 is affected, driving the swinging leaf column 313 to swing. If the end is closed after the flow, the water hammer effect may affect the pipe body and the flange connection and cause damage. The swing of the swinging leaf column 313 will cause cavities when the material flows. The fluctuations caused by the collision of the fluid itself can weaken the water hammer potential energy to a certain extent, and the flow potential energy has continuity, thereby protecting the pipe body and improving the long-term usability.

[0051] The internal rotation of the swing leaf column 313 is connected to the closing platform 321. Through the interference of the fluid, the closing platform 321 swings one more than the swing leaf column 313. The existence of the closing platform 321 will hinder the flow path of the fluid inside the swing leaf column 313, resulting in a flow difference, which is as shown in the figure. Figure 12 The state after the middle closing platform 321 swings one more time can be more conducive to the swinging of the swinging leaf column 313, and it can present the preparation work before resetting under the influence of the fluid, thereby improving the stability of the device.

[0052] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sealing flange for a petroleum pipeline, comprising a housing (12), a feed pipe (13), and a discharge pipe (14), characterized in that: Also includes: A sealing mechanism (1), wherein the side wall of the sealing mechanism (1) is provided with two fastening assemblies (11); the inner wall of the fastening assembly (11) is threadedly connected to the outer wall of the shell (12), and the fastening assembly (11) fixes and restricts the outer walls of the feed pipe (13) and the discharge pipe (14); an interference mechanism (2), wherein the interference mechanism (2) is provided at the inner wall of the shell (12) and extends to the outer wall, and is used to interfere with the flow of materials; a movable mechanism (3), wherein the movable mechanism (3) is provided at the inner wall of the shell (12) and extends to the outer wall, and is used to disperse the flow of materials; wherein the outer surface of the shell (12) is provided with a through circular through hole 1, the outer wall of the shell (12) is provided with a through circular through hole 2, and a circular cavity is provided inside the circular through hole 1; The sealing mechanism (1) comprises: a fastening assembly (11), the fastening assembly (11) being rotatably connected to the side wall of the housing (12) via a rotating member; the rotating member comprises two outer flanges (111) threadedly connected to the outer wall of the housing (12); The interference mechanism (2) comprises: a floating assembly (21), wherein the floating assembly (21) slides on the inner wall of the housing (12) via a sliding member; the sliding member comprises a vertical rod (211) slidably connected to an inner wall of the circular through hole; a pendulum assembly (22), wherein the pendulum assembly (22) is fixed inside the floating assembly (21) via a fixing member; the fixing member comprises an L-shaped connecting rod (221) fixedly connected inside the floating assembly (21); The movable mechanism (3) includes: a swing assembly (31), the swing assembly (31) being rotatably connected to the outer wall of the pendulum assembly (22) via a rotating member; the rotating member including a second connecting arm (311) being rotatably connected to the outer wall of the pendulum assembly (22); and a limiting assembly (32), the limiting assembly (32) being rotatably connected to a closing platform (321) inside the limiting assembly (32) via a limiting member. The bottom of the vertical rod (211) is fixedly connected to a spring rod (212), and the bottom of the spring rod (212) is fixedly connected to a vertical column (213); The end of the L-shaped connecting rod (221) close to the column (213) is inserted into the inside of the circular through hole three, and the side wall of the L-shaped connecting rod (221) away from the column (213) is rotatably connected to a hollow hammer (222), the outer wall of the column (211) is fixedly connected to the connecting arm one (214), and the interior of the connecting arm one (214) is rotatably connected to the arc arm (223).

2. The sealing flange for a petroleum pipeline according to claim 1, characterized in that: Two outer flanges (111) are threadedly connected to the side wall of the shell (12), and the two outer flanges (111) are threadedly connected to the feed pipe (13) and the discharge pipe (14) on the side away from the shell (12). An interface (112) is provided inside the outer flange (111), and the two interfaces (112) are fixedly connected to the side walls of the feed pipe (13) and the discharge pipe (14). A wedge-shaped sealing ring (113) is movably connected to the side of the interface (112) close to the shell (12); wherein the wedge-shaped sealing ring (113) contacts the inner wall of the shell (12).

3. The sealing flange for a petroleum pipeline according to claim 2, characterized in that: The vertical rod (211) is slidably connected to the inside of the circular through hole 1; wherein, the end of the spring of the spring rod (212) away from the spring rod (212) is fixedly connected to the inner wall of the circular cavity.

4. The sealing flange for a petroleum pipeline according to claim 3, characterized in that: One end of the arc-shaped arm (223) away from the connecting arm 1 (214) is rotatably connected to the inside of the connecting arm 2 (311), and one side of the connecting arm 2 (311) away from the arc-shaped arm (223) is fixedly connected to the connecting rod (312).

5. The sealing flange for a petroleum pipeline according to claim 4, characterized in that: The bottom of the connecting rod (312) is fixedly connected to a swing leaf column (313); wherein the outer wall of the connecting rod (312) slides on the inner wall of the second circular through hole.

6. The sealing flange for a petroleum pipeline according to claim 5, characterized in that: The interior of the swing leaf column (313) is rotatably connected to a closing platform (321).

Images