Petroleum safety transportation pipeline convenient to butt joint

Abstract

The utility model discloses a petroleum safety transportation pipeline convenient to butt joint. The petroleum safety transportation pipeline comprises a first pipeline and an efficient protection device. According to the utility model, the efficient protection device is arranged, namely, the efficient protection device is matched with the positioning shafts arranged on the front side and the rear side of the left side of the fixing ring, so that when the first flange and the second flange are in butt joint, pre-positioning and insertion can be realized, accurate opposite opening holes are ensured, and the pipeline butt joint smoothness is enhanced; when the movable sleeve and the fixed ring are combined, an inserting shaft can be inserted into the fixed ring to be matched with transmission of a screw rod and a push block, an upper jacking piece can be jacked, and the upper jacking piece extrudes an abutting block arranged in a hollow groove, so that abutting locking matching is achieved, it is guaranteed that the movable sleeve and the fixed ring are firmly combined in a butt joint mode, a first flange and a second flange are efficiently wrapped and protected, and corrosion damage is reduced; therefore, the advantages that the movable sleeve and the fixed ring are quickly butted and locked, and the first flange and the second flange are located in a stable protection space are achieved.

Description

Technical Field

[0001] The utility model relates to the relevant field of oil transportation pipelines, in particular to a safe oil transportation pipeline which is easy to connect. Background Art

[0002] Petroleum, one of the main objects of geological exploration, is a viscous, dark brown liquid, known as the "blood of industry". Petroleum is stored in some areas of the upper crust. Its main components are a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. There are two theories about the formation mechanism of petroleum: biological sedimentation and petrochemical oil. The extraction and transportation of petroleum usually requires the use of oil pipelines to transport petroleum.

[0003] Oil transportation pipelines usually use welding or flange connection. Compared with welding, flange connection is a more convenient connection method. It can be directly connected and bolted. Flange connection is exposed to the external environment for a long time and is prone to corrosion and other damages, which will affect the internal parts in the long run. Therefore, a protective device is needed to protect the flange connection without affecting its connection convenience.

[0004] The existing application number is CN202321661781.X, which is a safe oil transportation pipeline that is easy to dock. It belongs to the technical field of oil transportation pipelines, including a transportation pipeline and a docking assembly. A docking device is provided on the transportation pipeline, and two transportation pipelines are connected through the docking device. The docking device includes a connecting flange, a protective pad and a clamping assembly. The connecting flange is used to connect two transportation pipelines that need to be connected. A notch is provided on the connecting flange, and the protective pad is installed in the notch. The clamping assembly is used to fasten the protective pad in the notch. The transportation pipelines are connected through flanges. In order to prevent the contact point of the flange from being exposed for a long time and suffering from corrosion and other damages, a protective pad is provided for protection. The clamping assembly tightly clamps the protective pad on the connecting flange to maintain close contact of the protective pad and seal the contact point of the two connecting flanges.

[0005] The above-mentioned existing oil safety transportation pipeline achieves sealing protection of the two connecting flanges by installing protective pads and clamping components on the outside of the two connecting flanges, thereby preventing the connection from being exposed to the outside for a long time and suffering damage such as corrosion. The protection it has only meets the flange connection, and the auxiliary protection for the connecting flanges on both sides is poor, causing the external connecting bolts of the connecting flanges on both sides to corrode, thereby affecting the firmness of the adjacent pipeline connections. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a safe oil transportation pipeline which is easy to connect.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a safe oil transportation pipeline that is easy to dock, comprising a first pipeline, a first flange is welded and fixed on the right side of the first pipeline, a second flange is connected to the right side of the first flange, and a second pipeline is welded and fixed to the right side of the second flange, a connecting bolt is inserted between the first flange and the second flange, and a nut is threadedly connected to the right side of the connecting bolt, and also includes a high-efficiency protection device arranged on the outside of the first pipeline and the second pipeline, the high-efficiency protection device includes a fixed ring installed on the outside of the second pipeline, a sleeve ring arranged on the right side of the fixed ring, a positioning shaft installed in the middle of the left side of the fixed ring, a movable sleeve movably installed on the outside of the first pipeline, limit blocks fixed on both sides of the inside of the movable sleeve, docking grooves opened on the upper and lower sides of the first pipeline, and locking components installed on both sides of the inside of the fixed ring.

[0008] Preferably, the locking assembly includes a plug-in shaft installed at the upper and lower ends of the right side of the movable sleeve, a hollow groove opened inside the plug-in shaft, a block arranged inside the hollow groove, a telescopic rod connected to the right side of the block, a spring installed on the outside of the telescopic rod, an upper push piece that resists the outside of the block and is arranged inside the fixed ring, a push block connected to the lower end of the upper push piece, and a screw threadedly connected to the lower end of the push block.

[0009] Preferably, the upper ejector member comprises an ejector block disposed inside the fixing ring, a plug-in board fixed to the middle of the ejector block, and a compression spring disposed at the lower end of the plug-in board.

[0010] Preferably, the positioning shaft is symmetrically arranged in the front and rear direction along the left middle part of the fixing ring, and the positioning shafts on both sides pass through the front and rear sides of the first flange and the second flange.

[0011] Preferably, the overall diameter of the movable sleeve is consistent with that of the fixed ring, and the interior of the movable sleeve is hollow.

[0012] Preferably, the plug-in shaft is laterally inserted into the upper end or the lower end of the fixing ring, and the plug-in shaft is laterally symmetrically arranged up and down along the right side of the movable sleeve.

[0013] Preferably, the stop block is slidably embedded in the right side of the hollow groove, and the left outer surface of the stop block is arranged in the shape of a smooth inclined surface.

[0014] Preferably, the plug-in board is longitudinally inserted into the interior of the top block, and the front and rear sides of the plug-in board are both slidably plugged into the interior of the fixing ring.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model is provided with an efficient protective device, that is, in cooperation with the positioning shafts provided at the front and rear of the left side of the fixing ring, the first flange and the second flange can be butted together to achieve pre-positioning and plugging, so as to ensure that the openings are accurately relative and enhance the smoothness of the pipe butt joint.

[0017] 2. The utility model is provided with a locking assembly, that is, when the movable sleeve is connected with the fixed ring, the plug-in shaft can be inserted into the interior of the fixed ring, and the upper ejector can be lifted by the screw rod and the push block transmission, so that the upper ejector can squeeze the abutment block provided inside the hollow groove, thereby realizing the abutment and locking cooperation, ensuring that the movable sleeve and the fixed ring are firmly connected, and the first flange and the second flange are efficiently wrapped and protected to reduce corrosion damage, thereby achieving the advantages of rapid docking and locking of the movable sleeve and the fixed ring, and placing the first flange and the second flange in a stable protection space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a front view structural diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the utility model high-efficiency protective device;

[0021] Figure 4 This is an enlarged structural diagram of the locking component A of the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the upper ejector of the utility model.

[0023] Among them: the first pipe-1, the first flange-2, the second flange-3, the second pipe-4, the connecting bolt-5, the nut-6, the high-efficiency protective device-7, the fixing ring-71, the collar-72, the positioning shaft-73, the movable sleeve-74, the limit block-75, the docking groove-76, the locking assembly-77, the plug-in shaft-771, the hollow groove-772, the block-773, the telescopic rod-774, the spring-775, the upper push piece-776, the push block-7761, the plug-in plate-7762, the compression spring-7763, the push block-777, and the screw-778. DETAILED DESCRIPTION

[0024] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0025] See also Figure 1-2 The utility model provides a safe oil transportation pipeline that is easy to connect, including a first pipeline 1, a first flange 2 is welded and fixed on the right side of the first pipeline 1, a second flange 3 is connected to the right side of the first flange 2, and a second pipeline 4 is welded and fixed to the right side of the second flange 3, a connecting bolt 5 is inserted between the first flange 2 and the second flange 3, and a nut 6 is threadedly connected to the right side of the connecting bolt 5, and also includes a high-efficiency protection device 7 arranged on the outside of the first pipeline 1 and the second pipeline 4.

[0026] See also Figure 3The high-efficiency protection device 7 in this embodiment includes a fixing ring 71 installed on the outside of the second pipe 4 to achieve blocking protection cooperation, a collar 72 welded and fixed to the right side of the fixing ring 71, and the collar 72 is connected to the middle of the upper and lower sides with bolts, and the collar 72 is fastened with the bolts on the outside of the second pipe 4 through the upper and lower side bolts to ensure that the fixing ring 71 is firmly installed and used, a positioning shaft 73 fastened to the middle of the left side of the fixing ring 71 for the first flange 2 and the second flange 3 to dock and position, thereby accelerating the convenience of docking the first flange 2 and the second flange 3, so that the first pipe 1 and the second pipe 4 can be quickly docked and combined, a movable sleeve 74 movably installed on the outside of the first pipe 1 and can slide left and right, a limit block 75 symmetrically fixedly connected to the left side of the movable sleeve 74 to achieve sliding limit docking, a docking groove 76 symmetrically opened on the outside of the first pipe 1, and the upper and lower side docking grooves 76 are both slidably limited and docked with the upper and lower side limit blocks 75, and a locking component 77 symmetrically installed on both sides of the inside of the fixing ring 71 to achieve covering protection locking cooperation.

[0027] Among them, the positioning shaft 73 is symmetrically arranged horizontally along the front and back middle part of the left side of the fixing ring 71, and the positioning shafts 73 on both sides pass through the front and back sides of the first flange 2 and the second flange 3, ensuring that the first flange 2 and the second flange 3 are conveniently positioned and docked through the positioning shafts 73 on both sides, thereby accelerating the subsequent bolt tightening efficiency; the overall diameter of the movable sleeve 74 is consistent with the fixing ring 71, and the interior of the movable sleeve 74 is hollow, ensuring that the movable sleeve 74 and the fixing ring 71 are stably combined, so that the first flange 2 and the second flange 3 are inside the covered protection space to reduce corrosion damage.

[0028] See also Figure 4-5 The locking assembly 77 in this embodiment includes a plug-in shaft 771 which is laterally fastened to the upper and lower ends of the right side of the movable sleeve 74 to realize plug-in locking cooperation, a hollow groove 772 correspondingly opened in the plug-in shaft 771 on both sides to realize locking transmission cooperation, a stop block 773 installed on the right side of the hollow groove 772 for abutting and locking cooperation, a telescopic rod 774 connected to the right side of the stop block 773 and built into the right side of the plug-in shaft 771, a spring 775 installed on the outside of the telescopic rod 774 to realize elastic external top transmission cooperation, an upper ejection piece 776 which is abutted against the outside of the stop block 773 and arranged inside the fixing ring 71, a push block 777 connected to the lower end of the upper ejection piece 776 and slidably connected to the inside of the fixing ring 71, and the upper end surface of the push block 777 is opened in a smooth inclined shape, so that a smooth lifting transmission locking cooperation is realized through the inclined surface set on the upper end surface, and the screw 778 at the lower end of the push block 777 is threadedly connected.

[0029] Specifically, the upper push piece 776 includes a top block 7761 built into the fixed ring 71 and movable up and down, and the bottom of the top block 7761 is arranged in a convex shape, and the convex part of the top block 7761 smoothly abuts against the inclined surface of the upper end of the push block 777. Secondly, the upper end of the top block 7761 is arranged in a smooth inclined shape, and the top block 7761 is abutted and cooperated with the left side of the abutting block 773 through the inclined surface of the upper end, and a plug-in plate 7762 is correspondingly installed in the middle of the top block 7761 to realize the sliding connection, and a compression spring 7763 is symmetrically arranged at the lower end of the plug-in plate 7762 to realize the elastic pull-back reset.

[0030] Specifically, the plug-in shaft 771 is laterally inserted into the upper or lower end of the fixed ring 71, and the plug-in shaft 771 is symmetrically arranged along the upper and lower sides of the right side of the movable sleeve 74, ensuring that the movable sleeve 74 cooperates with the plug-in shaft 771 arranged on the upper and lower sides of the right side to accurately dock and combine with the fixed ring 71; the stop block 773 is slidably embedded in the right side of the hollow groove 772, and the outer surface of the left side of the stop block 773 is set in a smooth inclined surface shape, ensuring that the stop block 773 and the upper end of the upper top piece 776 are smoothly locked and transmitted.

[0031] Specifically, the plug-in board 7762 is longitudinally inserted into the top block 7761, and the front and rear sides of the plug-in board 7762 are slidably plugged into the interior of the fixed ring 71, ensuring that the top block 7761 cooperates with the plug-in board 7762 arranged in the middle to achieve a smooth up and down movement state.

[0032] Here’s how it works:

[0033] When the docking and assembly activities of the oil safety transportation pipeline are to be carried out, the high-efficiency protection device 7 can be installed on the outside of the first pipeline 1 and the second pipeline 4 respectively, that is, the movable sleeve 74 is slidably docked with the docking grooves 76 opened on the upper and lower sides of the first pipeline 1 through the limit blocks 75 provided on the left upper and lower sides, so that the movable sleeve 74 can move left and right along the outside of the first pipeline 1, and the fixed ring 71 can be bolted and connected with the outside of the second pipeline 4 through the sleeve ring 72 provided on the right side, so that the fixed ring 71 is in a locked state as a whole, thereby realizing the high-efficiency combined docking of the high-efficiency protection device 7 and the first pipeline 1 and the second pipeline 4;

[0034] When the first pipe 1 and the second pipe 4 are connected through the first flange 2 and the second flange 3 provided on the opposite side, the fixing ring 71 can be matched with the positioning shaft 73 installed transversely at the front and rear ends of the left middle part to be synchronously inserted between the first flange 2 and the second flange 3, so that the first flange 2 and the second flange 3 are accurately abutted against each other, and the outer openings of the first flange 2 and the second flange 3 are accurately relative to each other. In this way, the connecting bolt 5 can be inserted between the inner openings of the first flange 2 and the second flange 3, and matched with the nut 6 to achieve locking fit, thereby assisting in enhancing the rapidity of the connection between the first pipe 1 and the second pipe 4, and achieving the advantage of accurate relative fit of the hole positions;

[0035] In order to ensure that the first flange 2 and the second flange 3 are in a highly effective protection state after docking, so as to reduce the occurrence of external corrosion and the like, the movable sleeve 74 arranged on the outer side of the first pipe 1 can be pushed horizontally to move the movable sleeve 74 rightwardly close to the fixed ring 71, so that the plug-in shaft 771 symmetrically arranged on the right side of the movable sleeve 74 will be inserted into the upper and lower interiors of the fixed ring 71 to achieve a positioning plug-in combination, thereby ensuring the rapidity of subsequent locking activities;

[0036] When the plug-in shafts 771 on both sides are inserted into the interior of the fixing ring 71 at the same time, the screw rod 778 that is threadedly connected to the inner surface of the push block 777 can be rotated to make the push block 777 move horizontally to cooperate with the top inclined surface to lift the upper top piece 776 as a whole, and the top block 7761 inside the upper top piece 776 can move upward accordingly to squeeze the block 773 provided in the hollow groove 772 inside the plug-in shaft 771, so that the block 773 moves into the right side of the hollow groove 772 and squeezes the telescopic rod 774 and the spring 775 connected on the right side, so that the plug-in shaft 771 inserted into the upper or lower side of the fixing ring 71 can be firmly locked. Secondly, when the top block 7761 moves upward, it can cooperate with the plug-in plug-in plate 7762 in the middle to connect with the fixing The sliding docking effect inside the ring 71 realizes stable upward or downward movement. At the same time, when the plug plate 7762 moves upward, the compression springs 7763 symmetrically arranged at the lower ends of the front and rear sides of the plug plate 7762 will be stretched, so as to ensure that when the mutual locking is subsequently released, the stretched compression springs 7763 can automatically pull down the top block 7761 to realize convenient unlocking and matching. After the locking assembly 77 at another location completes the mutual locking activity, the movable sleeve 74 can be stably combined with the fixed ring 71 to wrap the first flange 2 and the second flange 3, so as to realize the overall wrapping protection of the first flange 2 and the second flange 3, and avoid the first flange 2 and the second flange 3 being directly exposed to the outside, resulting in the occurrence of corrosion damage.

[0037] The push block 777 can then release the pushing effect on the upper ejector 776, and the compression springs 7763 provided on the front and rear sides of the plug-in plate 7762 can make the upper ejector 776 automatically move downward and reset as a whole. The resisting block 773, which is squeezed into the right side of the hollow groove 772 by the upper ejector 776, can also realize automatic outward movement through the rebound effect of the spring 775 provided on the left side of the telescopic rod 774, so as to prepare for the subsequent resisting locking. In this way, the movable sleeve 74 and the fixed ring 71 can be released from the lock, and the movable sleeve 74 can be moved horizontally to expose the first flange 2 and the second flange 3, thereby achieving the advantage of quick docking and locking between the movable sleeve 74 and the fixed ring 71, so that the first flange 2 and the second flange 3 are in a stable protective space.

[0038] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safe oil transportation pipeline that is easy to connect, comprising a first pipeline (1), a first flange (2) is welded and fixed on the right side of the first pipeline (1), a second flange (3) is connected to the right side of the first flange (2), and a second pipeline (4) is welded and fixed to the right side of the second flange (3), a connecting bolt (5) is inserted between the first flange (2) and the second flange (3), and a nut (6) is threadedly connected to the right side of the connecting bolt (5); Features: The invention also comprises a high-efficiency protective device (7) arranged on the outside of the first pipeline (1) and the second pipeline (4), the high-efficiency protective device (7) comprising a fixing ring (71) installed on the outside of the second pipeline (4), a sleeve ring (72) arranged on the right side of the fixing ring (71), a positioning shaft (73) installed in the middle of the left side of the fixing ring (71), a moving sleeve (74) movably installed on the outside of the first pipeline (1), a stopper (75) fixedly arranged on both sides of the inside of the moving sleeve (74), a docking groove (76) provided on the upper and lower sides of the first pipeline (1), and a locking assembly (77) installed on both sides of the inside of the fixing ring (71).

2. According to claim 1, a safe oil transportation pipeline that is easy to dock, characterized in that: The locking assembly (77) comprises a plug-in shaft (771) mounted on the upper and lower ends of the right side of the movable sleeve (74), a hollow groove (772) provided inside the plug-in shaft (771), a stopper (773) arranged inside the hollow groove (772), a telescopic rod (774) connected to the right side of the stopper (773), a spring (775) mounted on the outside of the telescopic rod (774), an upper push piece (776) abutting against the outside of the stopper (773) and arranged inside the fixed ring (71), a push piece (777) connected to the lower end of the upper push piece (776), and a screw (778) threadedly connected to the lower end of the push piece (777).

3. The oil safe transportation pipeline that is easy to dock according to claim 2 is characterized by: The upper push piece (776) comprises a push block (7761) arranged inside the fixing ring (71), a plug board (7762) fixed to the middle of the push block (7761), and a compression spring (7763) arranged at the lower end of the plug board (7762).

4. The oil safe transportation pipeline that is easy to dock according to claim 1 is characterized by: The positioning shaft (73) is symmetrically arranged along the front and rear middle of the left side of the fixing ring (71) and the positioning shaft (73) on both sides passes through the front and rear sides of the first flange (2) and the second flange (3).

5. The oil safe transportation pipeline that is easy to dock according to claim 1 is characterized by: The overall diameter of the movable sleeve (74) is consistent with that of the fixed ring (71), and the interior of the movable sleeve (74) is hollow.

6. The oil safe transportation pipeline that is easy to dock according to claim 2 is characterized by: The plug-in shaft (771) is laterally inserted into the upper end or the lower end of the fixing ring (71), and the plug-in shaft (771) is laterally symmetrically arranged along the right side of the moving sleeve (74).

7. The oil safe transportation pipeline that is easy to dock according to claim 2 is characterized by: The stop block (773) is slidably embedded in the right side of the hollow groove (772), and the left outer surface of the stop block (773) is arranged in the shape of a smooth inclined surface.

8. The oil safe transportation pipeline that is easy to dock according to claim 3 is characterized by: The plug-in board (7762) is longitudinally inserted into the top block (7761), and the front and rear sides of the plug-in board (7762) are both slidably plugged into the interior of the fixing ring (71).

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