SCADA-based oil depot storage and transportation system

Abstract

The application provides a kind of oil depot storage and transportation system based on SCADA, including control center, remote control terminal connected with control center through communication module, and detection device for detecting oil in oil depot and crude oil in oil pipe and connecting remote control terminal, detection device includes oil depot detection unit for detecting stored oil in oil depot, and oil pipe detection unit for detecting transported oil on oil pipe, and oil pipe monitoring unit is located on oil pipe valve; Oil pipe valve includes liquid inlet pipe and liquid outlet pipe arranged on the side surface of control column, detection device for detecting oil arranged on liquid inlet pipe, and protection assembly for eliminating water hammer effect arranged on control column; The application can conveniently sample and detect oil in pipeline, avoid valve damage and oil leakage caused by water hammer effect, and avoid oil waste and environmental pollution.

Description

Technical Field

[0001] This invention relates to the field of oil depot storage and transportation technology, specifically to an oil depot storage and transportation system based on SCADA. Background Technology

[0002] SCADA (Supervisory Control and Data Acquisition) systems are the primary tools and means for executing oil depot storage and transportation control operations. They possess functions such as on-site data acquisition, real-time processing, storage, process quantity control, and human-machine interface interaction. In actual oil control processes, control personnel need to monitor large amounts of data and handle numerous alarms in real time. Due to the complexity of oil depot and pipeline operations, and the rapid changes in controlled objects and monitored variables, the control work performed during this process—including pipeline equipment control, operation control, process control, and plan execution—is not only extremely labor-intensive but also carries certain risks. The timeliness and accuracy of pipeline control largely depend on the experience and patience of dispatchers, thus pipeline operation has certain safety hazards. To improve the timeliness and accuracy of oil depot storage and transportation pipeline control, this paper, through research and analysis of oil depot storage and transportation pipeline control operations, and considering the needs of dispatchers for data statistics, analysis, calculation, and interaction, proposes an oil depot storage and transportation pipeline control support system and its implementation method based on the functional design required to support oil depot storage and transportation pipeline control operations, aiming to achieve the safety and reliability of oil depot storage and transportation pipeline control operations.

[0003] The oil depot storage and transportation pipeline control business support system realizes process analysis, logic control, operation analysis, and inventory and sales analysis of the oil depot pipeline operation. It can provide various status analyses and statistical data of oil depot pipeline operation, reduce the experience requirements of control operations, reduce the workload of control operations, and greatly improve the accuracy and timeliness of pipeline control.

[0004] The existing oil depot transports oil through pipelines, requiring testing of the oil in these pipelines. This necessitates closing valves on the oil pipelines and sampling the oil for testing. However, when the existing valves close the oil circuit, a water hammer effect occurs. The flowing oil continues to move forward, causing a sudden increase in pressure on the valve core facing the direction of the incoming oil. This instantaneous impact on the valve core, coupled with frequent impacts from crude oil, can damage the valve core, rendering the testing valve unusable.

[0005] In existing technologies, when connecting a detection valve to a pipeline, a sealing rubber is usually installed between the two to enhance the sealing performance. However, after prolonged use, the sealing rubber will lose its sealing function due to oxidation and corrosion, resulting in oil leakage at the connection between the valve and the pipeline. When the oil leakage first begins, the interval between oil droplets is long, making it difficult to detect. As a result, the detection valve cannot be replaced in time, leading to oil waste and environmental pollution. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides an oil depot storage and transportation system based on SCADA, which can conveniently sample and test the oil in pipelines, avoiding valve damage and oil leakage due to water hammer effect, and preventing oil waste and environmental pollution.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an oil depot storage and transportation system based on SCADA, comprising a control center, a remote control terminal connected to the control center via a communication module, and a detection device for detecting oil in the oil depot and crude oil transported in the oil pipeline and connected to the remote control terminal. The detection device includes an oil depot detection unit installed in the oil depot to detect the stored oil, and an oil pipeline detection unit installed on the oil pipeline to detect the transported oil. The oil pipeline monitoring unit is located on the oil pipeline valve.

[0008] The oil pipe valve includes an inlet pipe and an outlet pipe installed on both sides of the control column, a detection device installed on the inlet pipe to detect the oil, and a protective component installed on the control column to eliminate the water hammer effect.

[0009] The protective assembly includes a buffer tube disposed on the side of the control column and communicating with the inside of the control column, a fixed block disposed on the end of the buffer tube away from the control column, a slider disposed in the inner wall of the buffer tube and sealingly sliding, and a buffer component disposed in the buffer tube and connecting the fixed block and the slider. A limit block is fixedly disposed on the inner wall of the end of the buffer tube disposed on the side of the control column; multiple through holes are opened on the end face of the fixed block.

[0010] The buffer component includes a first telescopic rod that passes through the buffer tube and is fixedly connected at both ends to the adjacent end faces of the fixed block and the slider, and multiple buffer springs that are connected end to end and movably sleeved on the first telescopic rod. The spring force of the multiple buffer springs gradually decreases from the fixed block to the slider.

[0011] The detection assembly includes a sampling tube fixedly mounted vertically on the top side of the inlet tube, a first sealing block rotatably sealed on the top end face of the sampling tube, a limiting tube inserted into the sampling tube and vertically mounted on the side of the inlet tube with its interior communicating with the interior of the inlet tube, a sampling rod movably inserted into the limiting tube with a connecting hole on its side communicating with the interior, a sealing element mounted on the bottom end face of the limiting tube, and a lifting element mounted on the sampling rod to control the vertical movement of the sampling rod.

[0012] The sealing element includes a second sealing block that is movably inserted into a sampling hole at the bottom end face of the limiting tube, a second telescopic rod that is inserted into a telescopic groove at the bottom wall of the sampling hole, and a limiting spring that is movably sleeved on the body of the second telescopic rod and whose two ends are respectively fixedly connected to the bottom wall of the telescopic groove and the end face of the second sealing block.

[0013] The lifting component includes a lifting rack fixedly mounted vertically on the sampling rod, a control gear disposed inside the sampling tube and meshing with the lifting rack, a connecting rod movably passing through the sampling tube and connected to the end face of the control gear, and a second control wheel disposed on the side of the sampling tube and fixedly connected to the end face of the connecting rod.

[0014] The drain pipe is located above the inlet pipe. The oil pipe valve also includes a sealing ring fixed horizontally inside the control column and located between the inlet pipe and the drain pipe, a sealing disc located below the sealing ring, a lifting rod that passes through the inner ring of the sealing ring vertically and has its bottom end fixed to the top end face of the sealing disc, and a control component located above the control column to control the lifting rod to move up and down.

[0015] The control components include an adjusting block sleeved on the lifting rod and fixedly mounted on the top end face of the control column; a sealing rod horizontally positioned above the lifting rod with a control groove on its bottom side; a bidirectional lead screw passing through the control groove; two threaded blocks respectively connected by threads to both ends of the bidirectional lead screw; two linkage rods whose top ends are rotatably connected to different threaded blocks and whose bottom ends are rotatably connected to the top of the lifting rod; and a first control wheel mounted on the adjusting block and driving the bidirectional lead screw to rotate.

[0016] The beneficial effects of this invention are as follows: the detection device installed on the oil pipe valve facilitates the sampling and testing of oil in the oil pipe. When sampling and testing the oil in the oil pipe, the valve is closed first. The protective component installed on the oil pipe valve helps to eliminate the water hammer effect generated when the valve is closed, thereby avoiding damage to the valve caused by the water hammer effect. It can conveniently sample and test the oil in the pipeline, avoid the situation of valve damage and oil leakage due to water hammer effect, and avoid the problems of oil waste and environmental pollution. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a simplified structural diagram of the SCADA-based oil depot storage and transportation system proposed in this invention.

[0019] Figure 2 This is a schematic diagram of the oil pipe valve structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the back structure of the oil pipe valve of the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of the oil pipe valve cross-section of the present invention.

[0022] Figure 5 This is a schematic diagram of the control component structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the sealing element and lifting element of the present invention.

[0024] In the diagram: 1. Control column; 2. Inlet pipe; 3. Drain pipe; 4. Buffer pipe; 5. Through hole; 6. Adjusting block; 7. First control wheel; 8. Sampling tube; 9. First sealing block; 10. Sealing rod; 11. Linkage rod; 12. Lifting rod; 13. Sealing ring; 14. Sealing disc; 15. Sealing ring; 16. Control groove; 17. Two-way lead screw; 18. Positioning hole; 19. Sampling hole; 20. Second sealing block; 21. Sampling rod; 22. Connecting hole; 23. Telescopic groove; 24. Second telescopic rod; 25. Limiting spring; 26. Lifting rack; 27. Control gear; 28. Limiting tube. Detailed Implementation

[0025] To make the technical means, creative features, achieved objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this invention and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention.

[0026] Please see Figure 1-6A SCADA-based oil depot storage and transportation system includes a control center, a remote control terminal connected to the control center via a communication module, and a detection device for detecting oil in the oil depot and crude oil transported in the oil pipeline and connected to the remote control terminal. The detection device includes an oil depot detection unit installed in the oil depot to detect the stored oil and an oil pipeline detection unit installed on the oil pipeline to detect the transported oil. The oil pipeline monitoring unit is located on the oil pipeline valve.

[0027] The oil pipe valve includes an inlet pipe 2 and an outlet pipe 3 installed on both sides of the control column 1, a detection device installed on the inlet pipe 2 to detect the oil, and a protective component installed on the control column 1 to eliminate the water hammer effect.

[0028] like Figure 1-6 As shown, when it is necessary to sample and test the oil in the pipeline, the valve is closed. At this time, the oil in the pipeline tends to move towards the valve, generating a water hammer effect. The protective component installed on the pipeline valve can easily counteract the water hammer effect, avoiding damage or oil leakage to the valve caused by the water hammer effect. It can conveniently sample and test the oil in the pipeline, avoiding valve damage and oil leakage caused by the water hammer effect, and avoiding problems such as oil waste and environmental pollution.

[0029] The protective assembly includes a buffer tube 4 disposed on the side of the control column 1 and communicating with the interior of the control column 1, a fixing block disposed on the end of the buffer tube 4 away from the control column 1, a slider disposed in the inner wall of the buffer tube 4 for sealing and sliding, and a buffer component disposed in the buffer tube 4 and connecting the fixing block and the slider. A limit block is fixedly disposed on the inner wall of the side of the buffer tube 4; multiple through holes 5 are opened on the end face of the fixing block.

[0030] The buffer component includes a first telescopic rod that passes through the buffer tube 4 and is fixedly connected at both ends to the adjacent end faces of the fixed block and the slider, and multiple buffer springs that are connected end to end and movably sleeved on the first telescopic rod. The spring force of the multiple buffer springs gradually decreases from the fixed block to the slider.

[0031] like Figure 2-3As shown, when the oil pipe valve is closed, the oil in the oil pipe impacts the valve, generating a water hammer effect. At this time, the pressure in the control column 1 increases, pushing the slider, which is slidably mounted in the buffer tube 4, to move towards the fixed block. During the sliding process, the slider compresses multiple buffer springs fitted on the first telescopic rod. As the elastic force of the multiple buffer springs gradually decreases, the resistance of the slider in the buffer tube 4 gradually increases as the slider approaches the fixed block. This facilitates the conversion of the pressure in the control column 1 into elastic potential energy in the buffer springs, preventing the oil in the oil pipe from directly impacting the valve core after the valve is closed, thus avoiding damage or even oil leakage to the valve. When the pressure in the control column 1 tends to stabilize, the slider will be pushed away from the fixed block under the action of the multiple buffer springs. This helps to stabilize the pressure in the oil pipe and control column 1 when the valve is opened or closed, thus protecting the valve. In addition, the fixed block has multiple through holes 5 to ensure the stable sliding of the slider in the buffer tube 4.

[0032] The slider is fixed with a rubber ring that fits tightly against the inner wall of the buffer tube.

[0033] The detection assembly includes a sampling tube 8 fixedly mounted vertically on the top side of the inlet pipe 2, a first sealing block 9 rotatably sealed on the top end face of the sampling tube 8, a limiting tube 28 inserted into the sampling tube 8 and vertically mounted on the side of the inlet pipe 2 with its interior communicating with the interior of the inlet pipe 2, a sampling rod 21 movably inserted into the limiting tube 28 with a connecting hole 22 on the side of the limiting tube 28 communicating with the interior, a sealing element mounted on the bottom end face of the limiting tube 28, and a lifting element mounted on the body of the sampling rod 21 to control the vertical movement of the sampling rod 21.

[0034] The sealing components include a second sealing block 20 that is movably inserted into a sampling hole 19 on the bottom end face of the limiting tube 28, a second telescopic rod 24 that is inserted into a telescopic groove 23 on the bottom wall of the sampling hole 19, and a limiting spring 25 that is movably sleeved on the body of the second telescopic rod 24 and whose two ends are respectively fixedly connected to the bottom wall of the telescopic groove 23 and the end face of the second sealing block 20.

[0035] The lifting component includes a lifting rack 26 fixedly mounted on the sampling rod 21 in a vertical direction, a control gear 27 disposed inside the sampling tube 8 and meshing with the lifting rack 26, a connecting rod movably passing through the sampling tube 8 and connected to the end face of the control gear 27, and a second control wheel disposed on the side of the sampling tube 8 and fixedly connected to the end face of the connecting rod.

[0036] like Figure 3-5As shown, when it is necessary to collect oil from the oil pipe, rotating the second control wheel drives the control gear 27 to rotate, which in turn drives the lifting rack 26 meshing with the control gear 27 to move the sampling rod 21 from the limiting tube 28 into the inlet pipe 2. The sampling rod 21 pushes the second sealing block 20 into the inlet pipe 2. At this time, the multiple connecting holes 22 on the side of the sampling rod 21 facilitate the entry of oil into the sampling rod 21. This will pull the limiting spring 25 sleeved on the second telescopic rod 24, and through the rotation of the second control wheel, drive the sampling rod 21 upward. Under the action of the limiting spring 25, the second sealing block 20 moves into the sampling hole 19. Because the pressure inside the oil pipe is greater than the pressure of the external space, the second sealing block 20 can be tightly inserted into the sampling hole 19, thus ensuring the sealing performance of the second sealing block 20 within the sampling hole 19. During this process, the first sealing block 9 is sealed at the top end of the sampling tube 8, ensuring the pressure stability within the sampling tube 8. After collecting oil in the sampling rod 21, the first sealing block 9 is opened, facilitating the collection of oil in the sampling rod 21. This allows for convenient sampling and testing of oil in the pipeline, avoiding valve damage and oil leakage due to water hammer effect, and preventing oil waste and environmental pollution.

[0037] The drain pipe 3 is located above the inlet pipe 2. The oil pipe valve also includes a sealing ring 13 fixedly arranged horizontally inside the control column 1 and located between the inlet pipe 2 and the drain pipe 3, a sealing disc 14 located below the sealing ring 13, a lifting rod 12 that passes through the inner ring of the sealing ring 13 vertically and is fixedly located at the top end of the sealing disc 14, and a control component located above the control column 1 to control the lifting rod 12 to rise and fall.

[0038] The control components include an adjusting block 6 sleeved on the lifting rod 12 and fixedly mounted on the top end face of the control column 1; a sealing rod 10 horizontally positioned above the lifting rod 12 with a control groove 16 on its bottom side; a bidirectional lead screw 17 passing through the control groove 16; two threaded blocks respectively threadedly connected to both ends of the bidirectional lead screw 17; two linkage rods 11 whose top ends are rotatably connected to different threaded blocks and whose bottom ends are rotatably connected to the top end of the lifting rod 12; and a first control wheel 7 mounted on the adjusting block 6 and driving the bidirectional lead screw 17 to rotate.

[0039] like Figure 1-4As shown, when the oil pipe valve needs to be closed, the first control wheel 7 is rotated to drive the bidirectional lead screw 17, which passes through the control groove 16, to rotate. This facilitates the movement of the two threaded blocks sleeved on both ends of the bidirectional lead screw 17 away from each other. The lifting rod 12 is moved upward by the linkage rod 11, which causes the sealing disc 14, which is fixedly set on the bottom end of the lifting rod 12, to fit tightly against the bottom end face of the sealing ring 13. A sealing ring 15 is fixedly set on the top end face of the sealing disc 14, which facilitates the closure of the valve. Furthermore, because the oil in the oil pipe causes the pressure in the inlet pipe 2 to be greater than the pressure in the outlet pipe 3, the sealing disc 14 is made to fit tightly against the end face of the sealing ring 13, thus facilitating the tight closure of the oil pipe valve.

[0040] The first control wheel 7 has multiple positioning holes 18 arranged in a circular array on one end face of the adjusting block 6. The adjusting block 6 has a moving groove that is opposite to the position of the positioning holes 18. A positioning block is slidably arranged in the moving groove, and two electromagnets are fixedly arranged on the end face of the positioning block and the bottom wall of the moving groove. The positioning block matches the positioning hole 18. When the position of the first control wheel 7 needs to be fixed, the magnetic poles of the two electromagnets at adjacent ends are the same, so as to facilitate pushing the positioning block through the positioning hole 18, thereby facilitating the fixing of the position of the first control wheel 7.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A SCADA-based oil depot storage and transportation system, comprising a control center, a remote control terminal connected to the control center via a communication module, and a detection device for detecting oil in the oil depot and crude oil transported in pipelines and connected to the remote control terminal, characterized in that, The detection device includes an oil depot detection unit installed inside the oil depot to detect the stored oil, and an oil pipeline detection unit installed on the oil pipeline to detect the transported oil. The oil pipeline detection unit is located on the oil pipeline valve. The oil pipe valve includes an inlet pipe (2) and a drain pipe (3) installed on both sides of the control column (1), a detection component installed on the inlet pipe (2) to detect the oil, and a protective component installed on the control column (1) to eliminate the water hammer effect. The protective assembly includes a buffer tube (4) disposed on the side of the control column (1) and communicating with the inside of the control column (1), a fixing block disposed on the end of the buffer tube (4) away from the control column (1), a slider disposed in the inner wall of the buffer tube (4) and a buffer component disposed in the buffer tube (4) and connecting the fixing block and the slider; The buffer includes a first telescopic rod that passes through the buffer tube (4) and is fixedly connected to the end face of the fixed block and the slider respectively at both ends, and a plurality of buffer springs that are connected end to end and movably sleeved on the first telescopic rod. The spring force of the plurality of buffer springs gradually decreases from the fixed block to the slider. The detection assembly includes a sampling tube (8) fixedly mounted on the top side of the inlet pipe (2) in a vertical direction, a first sealing block (9) with a rotating seal mounted on the top end face of the sampling tube (8), a limiting tube (28) that passes through the sampling tube (8) and is vertically mounted on the side of the inlet pipe (2) and communicates with the inside of the inlet pipe (2), a sampling rod (21) that is movably mounted in the limiting tube (28) and has a connecting hole (22) on its side that communicates with the inside, a sealing element mounted on the bottom end face of the limiting tube (28), and a lifting element mounted on the rod body of the sampling rod (21) to control the sampling rod (21) to move up and down in the vertical direction; The sealing components include a second sealing block (20) that is movably inserted into a sampling hole (19) opened at the bottom end face of the limiting tube (28), a second telescopic rod (24) that is inserted into a telescopic groove (23) opened at the bottom wall of the sampling hole (19), and a limiting spring (25) that is movably sleeved on the body of the second telescopic rod (24) and whose two ends are respectively fixedly connected to the bottom wall of the telescopic groove (23) and the end face of the second sealing block (20). The lifting component includes a lifting rack (26) fixedly mounted on the body of the sampling rod (21) in a vertical direction, a control gear (27) mounted inside the sampling tube (8) and meshing with the lifting rack (26), a connecting rod movably passing through the sampling tube (8) and connected to the end face of the control gear (27), and a second control wheel mounted on the side of the sampling tube (8) and fixedly connected to the end face of the connecting rod.

2. The SCADA-based oil depot storage and transportation system according to claim 1, characterized in that: A limit block is fixedly installed on the inner wall of one end of the side of the control column (1); multiple through holes (5) are opened on the end face of the fixed block.

3. The SCADA-based oil depot storage and transportation system according to claim 2, characterized in that: The drain pipe (3) is located above the inlet pipe (2). The oil pipe valve also includes a sealing ring (13) fixedly arranged horizontally inside the control column (1) and located between the inlet pipe (2) and the drain pipe (3), a sealing disc (14) located below the sealing ring (13), a lifting rod (12) that passes through the inner ring of the sealing ring (13) vertically and whose bottom end is fixedly located on the top end face of the sealing disc (14), and a control component located above the control column (1) and controlling the lifting rod (12) to rise and fall.

4. The SCADA-based oil depot storage and transportation system according to claim 3, characterized in that: The control components include an adjustment block (6) sleeved on the lifting rod (12) and fixedly mounted on the top end face of the control column (1), a sealing rod (10) horizontally mounted above the lifting rod (12) and with a control groove (16) on its bottom side, a bidirectional lead screw (17) passing through the control groove (16), two threaded blocks respectively connected by threads to the two ends of the bidirectional lead screw (17), two linkage rods (11) with their top ends rotatably connected to different threaded blocks and their bottom ends rotatably connected to the top end of the lifting rod (12), and a first control wheel (7) mounted on the adjustment block (6) and driving the bidirectional lead screw (17) to rotate.

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