A multi-layer leak resistant delivery device and system

Abstract

The application discloses a multi-layer leakage-proof conveying device and system, and relates to the technical field of ship carbon capture, wherein the multi-layer leakage-proof conveying device comprises a pipeline assembly and a detection assembly; the pipeline assembly comprises a first pipeline, a second pipeline, a third pipeline and a fourth pipeline which are sequentially nested to sequentially form a first conveying cavity for conveying a first conveying medium, a first detection cavity provided with a first filling medium, a second conveying cavity for conveying a second conveying medium and a second detection cavity provided with a second filling medium; and the detection assembly is used for detecting whether the first filling medium contains the first conveying medium and / or whether the second filling medium contains the second conveying medium. The above design realizes parallel conveying of rich liquid shore conveying and lean liquid ship returning, effectively reduces docking time and land area. Moreover, the double filling medium layers in combination with the detection assembly provide leakage detection guarantee, and any leakage of the conveying cavities can be quickly identified so as to respond in time and avoid backflow pollution.

Description

Technical Field

[0001] This application relates to the field of ship carbon capture technology, and in particular to a multi-layer leak-proof conveying device and system. Background Technology

[0002] With the International Maritime Organization (IMO) continuously raising its requirements for greenhouse gas emission reduction from ships, ship carbon capture technology has become an important way to achieve low-carbon shipping. In existing technologies, the absorption tower and regeneration tower are usually integrated on board, but this suffers from high energy consumption, large space occupation, and significant impact on ship stability. Therefore, a scheme has been proposed where only carbon dioxide is absorbed on board, and the carbon dioxide-rich absorbent is transported to shore for centralized regeneration.

[0003] However, there is currently a lack of equipment specifically designed for efficient transfer of rich / lean solutions between ships and shore-based facilities. The main problems include:

[0004] 1. Carbon dioxide-rich absorbent (rich solution) and absorbent (lean solution) are transported by separate equipment, which requires a long docking time and a large area.

[0005] 2. Lack of specialized leak detection, resulting in insufficient safety assurance.

[0006] Therefore, there is an urgent need to provide a new conveying device solution to address the shortcomings of existing technologies. Utility Model Content

[0007] In view of this, the purpose of this application is to provide a multi-layer leak-proof conveying device and system to solve the technical problems of long docking time, large footprint and insufficient safety guarantee required by existing ship-shore rich / poor liquid transfer equipment.

[0008] To achieve the above technical objectives, this application provides a multi-layer leak-proof conveying device, including a pipeline assembly and a detection assembly;

[0009] The piping assembly includes a first pipe, a second pipe, a third pipe, and a fourth pipe;

[0010] The first pipeline is provided with a first conveying chamber for conveying a first conveying medium;

[0011] The first pipeline is provided with a first medium inlet and a first medium outlet that connect to the first conveying chamber;

[0012] The second pipe is fitted over the first pipe, and forms a first detection cavity between the second pipe and the outer wall of the first pipe;

[0013] The first detection cavity is provided with a first filling medium;

[0014] The third pipe is fitted outside the second pipe and forms a second conveying cavity between itself and the outer wall of the second pipe for conveying the second conveying medium;

[0015] The second pipeline is provided with a second medium inlet and a second medium outlet that connect to the second conveying chamber;

[0016] The fourth pipe is fitted over the third pipe, and forms a second detection cavity between the fourth pipe and the outer wall of the third pipe;

[0017] The second detection chamber is provided with a second filling medium;

[0018] The detection component is used to detect whether the first filling medium contains the first delivery medium, and / or to detect whether the second filling medium contains the second delivery medium.

[0019] Furthermore, the second pipe is provided with a third medium inlet and a third medium outlet that are connected to the first detection chamber;

[0020] The fourth pipe is provided with a fourth medium inlet and a fourth medium outlet that are connected to the second detection chamber.

[0021] Furthermore, the detection component includes a first detector; the first detector is used to detect whether the pipeline commonly connected to the third medium outlet and the fourth medium outlet contains the first conveying medium and / or the second conveying medium;

[0022] Alternatively, the detection component includes a first detector and a second detector; the first detector is used to detect whether the first filling medium contains the first delivery medium; the second detector is used to detect whether the second filling medium contains the second delivery medium.

[0023] Furthermore, the first detector (21) and / or the second detector (22) are independently selected from one or a combination thereof:

[0024] The instrument includes a UV254 absorption detector, a UV-Vis spectral COD estimation detector, a fluorescence dissolved organic matter detector, an online total organic carbon (TOC) analyzer, an online chemical oxygen demand (COD) analyzer, an online total organic halogen (TOX) analyzer, a conductivity detector, a pH detector, and a turbidity detector.

[0025] Furthermore, the first pipe, the second pipe, the third pipe, and the fourth pipe are coaxially arranged.

[0026] This application also discloses a delivery system, including a shipboard rich liquid tank, a shipboard lean liquid tank, a shore-based rich liquid tank, a shore-based lean liquid tank, and the aforementioned multi-layer leak-proof delivery device;

[0027] The first medium inlet of the multi-layer leak-proof conveying device is connected to the ship's rich liquid tank through a first conveying medium input pipe.

[0028] The first medium outlet of the multi-layer leak-proof conveying device is connected to the onshore rich liquid tank through a first conveying medium output pipe.

[0029] A first delivery pump is connected in series between the first delivery medium input pipe and the ship's rich liquid tank;

[0030] The second medium inlet of the multi-layer leak-proof conveying device is connected to the onshore lean liquid tank through the second conveying medium input pipe;

[0031] The second medium outlet of the multi-layer leak-proof conveying device is connected to the lean liquid tank on the ship via a second conveying medium output pipe.

[0032] A second delivery pump is connected in series between the second delivery medium output pipe and the onshore lean liquid tank.

[0033] Furthermore, it also includes a filling medium tank;

[0034] The second pipe of the multi-layer leak-proof conveying device is provided with a third medium inlet and a third medium outlet that are connected to the first detection chamber;

[0035] The fourth pipe of the multi-layer leak-proof conveying device is provided with a fourth medium inlet and a fourth medium outlet that are connected to the second detection chamber;

[0036] The filling medium tank is connected to a circulation input pipe and a circulation output pipe;

[0037] The third medium inlet is connected to the circulation output pipe through the first filling medium input pipe;

[0038] The third medium outlet is connected to the circulation input pipe through the first filling medium output pipe;

[0039] The fourth medium inlet is connected to the circulation output pipe through the second filling medium input pipe;

[0040] The fourth medium outlet is connected to the circulation input pipe via the second filling medium output pipe;

[0041] A third delivery pump is connected in series with either the circulation input pipe or the circulation output pipe.

[0042] Furthermore, the first filling medium input pipe is connected to a first row of clean pipes;

[0043] A first drain valve is installed on the first drain pipe;

[0044] The second filling medium input pipe is connected to the second row of clean pipes;

[0045] A second drain valve is installed on the second drain pipe.

[0046] Furthermore, it also includes a control device;

[0047] The control device is communicatively connected to the pump motor of the first delivery pump, the pump motor of the second delivery pump, the pump motor of the third delivery pump, and the detection component of the multi-layer leak-proof delivery device.

[0048] The control device is used to generate corresponding control signals based on the detection signals fed back by the detection component, so as to adjust the operating status of the pump motors of the first delivery pump, the second delivery pump, and the third delivery pump.

[0049] Furthermore, valves are installed on the first conveying medium input pipe, the first conveying medium output pipe, the second conveying medium input pipe, the second conveying medium output pipe, the first filling medium input pipe, the first filling medium output pipe, the second filling medium input pipe, the second filling medium output pipe, the circulation input pipe, and the circulation output pipe.

[0050] As can be seen from the above technical solutions, the multi-layer leak-proof conveying device designed in this application has the following beneficial effects:

[0051] 1. It enables parallel transport of rich liquor to the shore and lean liquor back to the ship, resulting in a more compact overall structure that effectively reduces docking time and floor space.

[0052] 2. The combination of dual-filling media layers and detection components provides leak detection assurance. Leaks in any delivery chamber can be quickly identified for timely response and to prevent backflow contamination.

[0053] 3. The structure is simple and easy to implement, and the goal of parallel transportation and safety can be achieved by relying only on the cooperation of pipeline components and detection components. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a first cross-sectional view of a multi-layer leak-proof conveying device provided in this application;

[0056] Figure 2This is a second sectional view of a multi-layer leak-proof conveying device provided in this application;

[0057] Figure 3 This is a schematic diagram of the structure of a first embodiment of a conveying system provided in this application;

[0058] Figure 4 This is a schematic diagram of a second embodiment of a conveying system provided in this application;

[0059] In the diagram: 1. Piping assembly; 11. First pipeline; 111. First medium inlet; 112. First medium outlet; 12. Second pipeline; 121. Third medium inlet; 122. Third medium outlet; 13. Third pipeline; 131. Second medium inlet; 132. Second medium outlet; 14. Fourth pipeline; 141. Fourth medium inlet; 142. Fourth medium outlet; 2. Detection assembly; 21. First detector; 22. Second detector; 31. First delivery chamber; 32. Second delivery chamber; 41. First detection chamber; 42. Second detection chamber; 51. Shipboard rich liquid tank; 52. Shore-based rich liquid tank; 53. First delivery pump; 54. First delivery medium 55. First delivery medium output pipe; 61. Shipboard lean liquid tank; 62. Shore-based lean liquid tank; 63. Second delivery pump; 64. Second delivery medium input pipe; 65. Second delivery medium output pipe; 71. Filling medium pipe; 72. Circulation output pipe; 73. Circulation input pipe; 74. First filling medium output pipe; 75. Second filling medium output pipe; 76. First filling medium input pipe; 77. Second filling medium input pipe; 78. Third delivery pump; 81. First drain pipe; 82. Second drain pipe; 83. First drain valve; 84. Second drain valve; 9. Control device; 91. First controller; 92. Second controller; 100. Valve. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of this application.

[0061] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0063] This application discloses a multi-layer leak-proof conveying device.

[0064] Please see Figure 1 One embodiment of a multi-layer leak-proof conveying device provided in this application includes:

[0065] Piping assembly 1 and detection assembly 2.

[0066] Pipe assembly 1 includes a first pipe 11, a second pipe 12, a third pipe 13, and a fourth pipe 14.

[0067] The first pipeline 11 is provided with a first conveying chamber 31 for conveying a first conveying medium; the first pipeline 11 is provided with a first medium inlet 111 and a first medium outlet 112 that are connected to the first conveying chamber 31.

[0068] The second pipe 12 is fitted outside the first pipe 11, and forms a first detection cavity 41 between the second pipe 12 and the outer wall of the first pipe 11; the first detection cavity 41 is provided with a first filling medium.

[0069] The third pipe 13 is fitted outside the second pipe 12 and forms a second conveying cavity 32 between it and the outer wall of the second pipe 12 for conveying the second conveying medium; the second pipe 12 is provided with a second medium inlet 131 and a second medium outlet 132 that communicate with the second conveying cavity 32.

[0070] The fourth pipe 14 is fitted outside the third pipe 13, and forms a second detection cavity 42 between the fourth pipe 14 and the outer wall of the third pipe 13; the second detection cavity 42 is provided with a second filling medium.

[0071] The detection component 2 is used to detect whether the first filling medium contains the first conveying medium, and / or to detect whether the second filling medium contains the second conveying medium.

[0072] The innermost first conveying chamber 31 preferably conveys a liquid with higher corrosiveness and hazard; therefore, the first conveying medium is a rich liquid, and the corresponding second conveying medium is a lean liquid. The first and second filling media can be clean water or equivalent media, used as leak detection media. Of course, the first and second conveying media can also be other media to be conveyed, not limited to lean / rich liquids. The first and second filling media are selected according to the conveying medium, and those skilled in the art can design variations according to actual needs, without specific limitations.

[0073] The multi-layer leak-proof conveying device designed in this application has the following beneficial effects:

[0074] 1. It enables parallel transport of rich liquor to the shore and lean liquor back to the ship, resulting in a more compact overall structure that effectively reduces docking time and floor space.

[0075] 2. The dual-filling medium layer combined with the detection component 2 provides leakage detection assurance. Any leakage in any delivery chamber can be quickly identified so as to respond in a timely manner and avoid backflow contamination.

[0076] 3. The structure is simple and easy to implement. Parallel transportation and safety can be achieved by relying only on the cooperation of pipeline component 1 and detection component 2.

[0077] The above is Embodiment 1 of a multi-layer leak-proof conveying device provided in this application. The following is Embodiment 2 of a multi-layer leak-proof conveying device provided in this application. Please refer to the following for details. Figures 1 to 4 .

[0078] Based on the solution of Embodiment 1 above:

[0079] Furthermore, the second pipe 12 is provided with a third medium inlet 121 and a third medium outlet 122 that connect to the first detection chamber 41; the fourth pipe 14 is provided with a fourth medium inlet 141 and a fourth medium outlet 142 that connect to the second detection chamber 42. The second pipe 12 and the fourth pipe 14 are also provided with inlets and outlets respectively, which can realize the replenishment and drainage of the filling medium or the circulation of the filling medium.

[0080] Achieving circulation of the filling medium is also of great significance. Circulation ensures the uniformity and stability of the filling medium, making the detection results of detection component 2 more accurate and reliable.

[0081] Furthermore, the design of the detection component 2 in this application includes, but is not limited to, the following two detection methods:

[0082] Detection Method 1: Detection component 2 includes a first detector 21; the first detector 21 is used to detect in the pipeline where the third medium outlet 122 and the fourth medium outlet 142 are connected (e.g., Figure 4 The detection component 2 can be designed with only one detector, which can be installed in the pipeline that connects the third medium outlet 122 and the fourth medium outlet 142 to meet the detection requirements. However, since the detection is performed on the mixed filling medium, the accuracy is somewhat insufficient when further determining whether the first filling medium contains the first conveying medium or the second filling medium contains the second conveying medium. Nevertheless, this method allows a single detector to meet the basic detection requirements, which helps reduce installation and maintenance costs.

[0083] Detection Method Two: Detection component 2 includes a first detector 21 and a second detector 22; the first detector 21 is used to detect whether the first filling medium contains the first conveying medium; the second detector 22 is used to detect whether the second filling medium contains the second conveying medium. It is understood that the detection component design contains two detectors, which perform detection independently. Compared to Method One, the detection accuracy is higher, but the installation and maintenance costs are also relatively increased.

[0084] Those skilled in the art can make design variations according to actual needs, and no specific restrictions are imposed.

[0085] Furthermore, the first detector (21) and / or the second detector (22) are independently selected from one or a combination thereof:

[0086] (a) UV254 absorption detector or UV-Vis spectral COD estimation detector.

[0087] (b) Fluorescent soluble organic matter detector (FDOM; tryptophan / humic acid fluorescence).

[0088] (c) Total organic carbon (TOC) online analyzer (UV-persulfate oxidation or catalytic combustion + NDIR).

[0089] (d) Chemical oxygen demand (COD) online analyzer.

[0090] (e) Total organic halogens (TOX) online analyzer.

[0091] (f) Conductivity detector, pH detector or turbidity detector.

[0092] It is understood that the first detector 21 and the second detector 22 may be of the same detector type or a combination of types, or they may be different detector types or combinations of types, without any specific restrictions.

[0093] Taking detection method two as an example, the setup of the first detector 21 and the second detector 22 enables accurate detection of the filling medium in different detection chambers. During actual operation, the first conveying medium flows within the first conveying chamber 31. If a leak occurs in the first pipeline 11, the first conveying medium will flow into the first detection chamber 41 and mix with the first filling medium. At this time, the first detector 21 will come into play. Based on its detection principle, if it is a conductivity detector, it will determine whether there is a leak in the first conveying medium based on the change in conductivity after the first conveying medium and the first filling medium are mixed; if it is a chemical oxygen demand (COD) online analyzer, it will detect the leak based on the change in COD after mixing.

[0094] Similarly, when the second conveying medium is conveyed in the second conveying chamber 32, if the third pipe 13 leaks, the second conveying medium will enter the second detection chamber 42 and mix with the second filling medium. The second detector 22 will then quickly detect whether the second filling medium contains the second conveying medium.

[0095] This dual-detector design further enhances the reliability and safety of the multi-layer leak-proof conveying device. It can detect leaks in either of the two conveying chambers immediately, buying valuable time for subsequent handling. For example, upon detecting a leak, the control device 9 can quickly stop the conveying operation based on the information fed back from the detection component 2, preventing the leak from worsening.

[0096] Furthermore, the first pipe 11, the second pipe 12, the third pipe 13, and the fourth pipe 14 are coaxially arranged (concentric ring nested arrangement). Each pipe can adopt a conventional coaxial sleeve structure; the two ends of each pipe share a common end structure for connection and sealing (such as a multi-chamber joint or equivalent structure) to ensure that each pipe is independently sealed.

[0097] The coaxial design offers numerous advantages. Firstly, it ensures the symmetry and stability of the entire multi-layer leak-proof conveying system, resulting in more uniform stress distribution across the pipes and reducing the risk of leakage caused by pipe misalignment or swaying. Secondly, during transport, the pressure and impact forces generated by the medium flowing through the pipes are evenly distributed across each pipe, preventing damage caused by localized stress concentration.

[0098] On the other hand, the coaxial arrangement helps improve conveying efficiency. The spatial layout between the pipes is more rational, the flow resistance of the medium during the conveying process is smaller, and it can pass through the conveying chamber more smoothly. At the same time, this arrangement also facilitates the detection component 2's detection work in each detection chamber, making the detection more accurate and efficient.

[0099] Furthermore, the coaxially arranged pipe assembly 1 is more convenient for installation and maintenance. Workers can more easily install, disassemble, and inspect the pipes, reducing maintenance costs and difficulty. Moreover, because the relative positions of the pipes are fixed, problems can be located more quickly during troubleshooting.

[0100] like Figure 3 As shown, this application also discloses a delivery system, including a shipboard rich liquid tank 51, a shipboard lean liquid tank 61, a shore-based rich liquid tank 52, a shore-based lean liquid tank 62, and a multi-layer leak-proof delivery device.

[0101] The first medium inlet 111 of the multi-layer leak-proof conveying device is connected to the ship's rich liquid tank 51 through the first conveying medium input pipe 54; the first medium outlet 112 of the multi-layer leak-proof conveying device is connected to the shore rich liquid tank 52 through the first conveying medium output pipe 55; a first conveying pump 53 is connected in series between the first conveying medium input pipe 54 and the ship's rich liquid tank 51; the second medium inlet 131 of the multi-layer leak-proof conveying device is connected to the shore lean liquid tank 62 through the second conveying medium input pipe 64; the second medium outlet 132 of the multi-layer leak-proof conveying device is connected to the ship's lean liquid tank 61 through the second conveying medium output pipe 65; a second conveying pump 63 is connected in series between the second conveying medium output pipe 65 and the shore lean liquid tank 62.

[0102] This transport system design enables efficient transport and circulation of rich and lean solutions both on board and ashore. The first transfer pump 53 provides power to transport the first transport medium (rich solution) from the ship's rich solution tank 51 to the shore-based rich solution tank 52, ensuring the rich solution can stably pass through the multi-layer leak-proof transport device. The second transfer pump 63 is responsible for transporting the second transport medium (lean solution) from the shore-based lean solution tank 62 back to the ship's lean solution tank 61, completing the entire transport cycle.

[0103] In actual operation, by reasonably controlling the working status of the first transfer pump 53 and the second transfer pump 63, the flow rate and speed of the rich and lean liquids can be adjusted to meet different production needs. Meanwhile, the multi-layer leak-proof conveying device can detect leaks in real time during the conveying process, providing a reliable guarantee for the safe operation of the conveying system.

[0104] Furthermore, it also includes a filling medium tank; the second pipe 12 of the multi-layer leak-proof conveying device is provided with a third medium inlet 121 and a third medium outlet 122 connected to the first detection chamber 41; the fourth pipe 14 of the multi-layer leak-proof conveying device is provided with a fourth medium inlet 141 and a fourth medium outlet 142 connected to the second detection chamber 42; the filling medium tank is connected to a circulation input pipe 73 and a circulation output pipe 72; the third medium inlet 121 is connected to the circulation output pipe 72 through the first filling medium input pipe 76; the third medium outlet 122 is connected to the circulation input pipe 73 through the first filling medium output pipe 74; the fourth medium inlet 141 is connected to the circulation output pipe 72 through the second filling medium input pipe 77; the fourth medium outlet 142 is connected to the circulation input pipe 73 through the second filling medium output pipe 75; a third conveying pump 78 is connected in series on the circulation input pipe 73 or the circulation output pipe 72.

[0105] The arrangement of the filling medium tank and the third delivery pump 78 enables the filling medium to circulate between the detection chamber and the filling medium tank of the multi-layer leak-proof delivery device. The third delivery pump 78 provides power for the circulation of the filling medium, ensuring that the filling medium can circulate continuously in the system. When the third delivery pump 78 starts, the filling medium flows out from the filling medium tank through the circulation output pipe 72, and enters the first detection chamber 41 and the second detection chamber 42 through the first filling medium input pipe 76 and the second filling medium input pipe 77, respectively. After completing the detection and other functions in the detection chamber, the filling medium then flows back to the circulation input pipe 73 through the first filling medium output pipe 74 and the second filling medium output pipe 75, and finally returns to the filling medium tank.

[0106] This recycling system not only ensures the effective utilization of the filling medium but also allows for timely replenishment and processing. For example, when the filling medium absorbs potentially leaking conveying medium during the detection process, it can be returned to the filling medium tank for purification to remove impurities and contaminants before being reused. This helps maintain the performance of the filling medium and the accuracy of detection, improving the overall operating efficiency of the multi-layer leak-proof conveying device.

[0107] Meanwhile, the circulation system also facilitates the management and maintenance of the filling medium. Staff can regularly inspect and maintain the filling medium tank to ensure the quality of the filling medium meets requirements. If the filling medium is insufficient, it can be replenished promptly; if the filling medium deteriorates, it can be replaced in a timely manner.

[0108] Furthermore, the first filling medium input pipe 76 is connected to the first drain pipe 81; the first drain pipe 81 is equipped with the first drain valve 83; the second filling medium input pipe 77 is connected to the second drain pipe 82; the second drain pipe 82 is equipped with the second drain valve 84.

[0109] The arrangement of the first drain pipe 81 and the first drain valve 83, the second drain pipe 82 and the second drain valve 84 facilitates system maintenance and repair. When a thorough cleaning of the first detection chamber 41 and the second detection chamber 42 is required, or when the filling medium needs to be completely replaced, the first drain valve 83 and the second drain valve 84 can be opened to discharge the filling medium in the first detection chamber 41 and the second detection chamber 42 into the system through the first drain pipe 81 and the second drain pipe 82, respectively.

[0110] This design makes system maintenance more efficient and thorough. By draining the old packing medium, residual impurities or packing medium that has absorbed leaked transport medium can be prevented from interfering with subsequent testing. Moreover, the draining operation ensures the cleanliness of the system before commissioning or injecting new packing medium, guaranteeing that the performance of the new packing medium will not be affected.

[0111] Furthermore, it also includes a control device 9; the control device 9 is communicatively connected to the pump motors of the first delivery pump 53, the second delivery pump 63, the third delivery pump 78, and the detection component 2 of the multi-layer leak-proof delivery device. The control device 9 is used to generate corresponding control signals based on the detection signals fed back by the detection component 2, so as to adjust the operating status of the pump motors of the first delivery pump 53, the second delivery pump 63, and the third delivery pump 78, forming a detection-control-adjustment closed loop.

[0112] The design of control device 9 includes, but is not limited to, the following two control methods:

[0113] Control method one: such as Figure 4 As shown, taking the detection component 2 including the first detector 21 as an example, the control device 9 is designed to include a first controller 91, the first detector 21 is installed on the circulation input pipe 73, and the first controller 91 is communicatively connected to the first delivery pump 53, the second delivery pump 63, the third delivery pump 78 and the first detector 21.

[0114] Control method two: such as Figure 3 As shown, taking the detection component 2, which includes a first detector 21 and a second detector 22, as an example, the first detector 21 is installed to the first filling medium output pipe 74, and the second detector 22 is installed to the second filling medium output pipe 75. The control device 9 can be designed to include a first controller 91 and a second controller 92. The first controller 91 is communicatively connected to the first delivery pump 53, the second delivery pump 63, the third delivery pump 78, and the first detector 21 of the detection component 2. The second controller 92 is communicatively connected to the first delivery pump 53, the second delivery pump 63, the third delivery pump 78, and the second detector 22 of the detection component 2. The first controller 91 and the second controller 92 can each be equipped with a display screen for displaying detection data.

[0115] The control device 9 makes the operation and management of the entire conveying system more intelligent and automated. When the detection component 2 detects that the first filling medium contains the first conveying medium, or the second filling medium contains the second conveying medium, the detection component 2 will promptly transmit a signal to the control device 9. Upon receiving the signal, the control device 9 can react quickly and control the start and stop of the pump motors of the first conveying pump 53, the second conveying pump 63, and the third conveying pump 78 according to a preset program. For example, if a leak of the first conveying medium is detected, the control device 9 can immediately stop the pump motor of the first conveying pump 53 to prevent more of the first conveying medium from leaking into the filling medium, and simultaneously activate the relevant alarm devices to remind personnel to handle the situation promptly.

[0116] Meanwhile, the display screen of control device 9 can show the detection data in real time, allowing staff to intuitively understand the operating status of each conveying and detection chamber by observing the data on the screen. This helps staff to promptly identify potential problems, take preventative measures in advance, and avoid accidents. Moreover, staff can also adjust the operating parameters of each conveying pump based on the data on the display screen, optimizing the operating efficiency of the conveying system.

[0117] Furthermore, valves 100 are installed on the first conveying medium input pipe 54, the first conveying medium output pipe 55, the second conveying medium input pipe 64, the second conveying medium output pipe 65, the first filling medium input pipe 76, the first filling medium output pipe 74, the second filling medium input pipe 77, the second filling medium output pipe 75, the circulation input pipe 73, and the circulation output pipe 72.

[0118] Valve 100 can be used for emergency shut-off of the system. It can be divided into manual valve or electric control valve according to the power type. Manual valve can be driven by handwheel / worm gear (such as manual shut-off valve), while electric control valve will be equipped with actuator (pneumatic / electric / hydraulic) and connected to control device 9.

[0119] Taking an electrically controlled valve as an example, when the detection component 2 detects a serious leak or other abnormal condition, the control device 9 can quickly issue a command to first shut down the pump motor of the relevant pipeline, and then close the valve 100 on the relevant pipeline, thus promptly stopping the further transport of the medium and preventing the accident from escalating. This emergency shut-off function plays a crucial role in ensuring the safe operation of the conveying system.

[0120] Furthermore, the proper configuration of valve 100 can optimize system operating efficiency. At different production stages or according to different production needs, operators can adjust the opening and closing combinations of valve 100 to flexibly switch the media delivery path, enabling the system to better adapt to various operating conditions. For example, during system startup, some valve 100 can be opened initially to allow the media to slowly enter the pipeline, avoiding damage to the pipeline and equipment due to sudden pressure changes; during normal system operation, the opening degree of valve 100 can be adjusted according to actual flow requirements to achieve the best delivery effect.

[0121] During berthing operations, the rich solution is transported from the ship's rich solution tank 51 to the shore rich solution tank 52 via the first transport chamber 31, while the lean solution is returned to the ship's lean solution tank 61 via the shore lean solution pipe through the second transport chamber 32. The first detection chamber 41 and the second detection chamber 42 are continuously filled with a medium (clean water) as a leak detection medium, and each is equipped with a first detector 21 / second detector 22 (taking conductivity detectors or chemical oxygen demand (COD) online analyzers as an example). When either detector detects that the conductivity or COD exceeds a preset threshold, the control device 9 immediately stops the pump and then closes the valves 100 on the rich solution transport pipeline and the lean solution transport pipeline to stop the transport. At the same time, the valve 100 on the filling medium transport pipeline is closed, and the draining process is completed through the drain pipe. After draining, water is added to form a flush to restore the level to within the baseline threshold.

[0122] The specific tasks are as follows (taking control method two as an example):

[0123] 1. First, start the third delivery pump 78 to make the first detection chamber 41 and the second detection chamber 42 circulate and fill the medium. Then, confirm whether the detection data displayed on the first controller 91 and the second controller 92 are within the baseline (initial range).

[0124] 2. Start the first transfer pump 53 and the second transfer pump 63 to transfer the rich liquid from the ship's rich liquid tank 51 to the shore's rich liquid tank 52, while the lean liquid is transferred from the shore's lean liquid tank 62 to the ship's lean liquid tank 61. During this process, the first detector 21 and the second detector 22 continuously detect and maintain the liquid level of the filling medium in the detection chamber and record the detection data in real time.

[0125] 3. When the first detector 21 detects a leakage signal exceeding the threshold, the first controller 91 sends a signal to first shut down the pump motors of the first transfer pump 53, the second transfer pump 63, and the third transfer pump 78; then it sends a signal to close the valves 100 on the rich solution transfer pipeline, the lean solution transfer pipeline, and the first filling medium circulation pipeline; afterwards, it opens the first drain valve 83, discharging the contaminated filling medium from the first drain pipe 81 to the plant's drainage / emergency treatment system. The first drain valve 83 is then closed, and the valve 100 on the first filling medium input pipe 76 is opened. The third transfer pump 78 is then started to periodically flush and drain the first detection chamber 41, during which time the detection signal of the first detector 21 is checked to see if it falls back below the threshold. After falling back below the threshold, all valve positions are checked, and the pump motors of the first transfer pump 53, the second transfer pump 63, and the third transfer pump 78 are restarted. This design prevents the backflow of contaminated water, avoiding secondary pollution. It quickly cleans the tank and restores the baseline through a draining and rinsing process (the interlocking action is clear, the contaminated water is directly drained, the process is short and the risk is low).

[0126] 4. Similarly, when the second detector 22 detects a leakage signal exceeding the threshold, the second controller 92 sends a signal to first shut down the pump motors of the first transfer pump 53, the second transfer pump 63, and the third transfer pump 78; then it sends a signal to close the valves 100 on the rich solution transfer pipeline, the lean solution transfer pipeline, and the second filling medium circulation pipeline; afterwards, it opens the second drain valve 84, discharging the contaminated filling medium from the second drain pipe 82 to the plant's drainage / emergency treatment system. The second drain valve 84 is then closed, and the valve 100 on the second filling medium input pipe 77 is opened. The pump motor of the third transfer pump 78 is then started to periodically flush and drain the second detection chamber 42, during which time the detection signal of the second detector 22 is checked to see if it falls back below the threshold. After falling back below the threshold, all valve positions are checked, and the pump motors of the first transfer pump 53, the second transfer pump 63, and the third transfer pump 78 are restarted.

[0127] After any drain is completed, a closed loop of "timed flushing + sampling comparison" is used: continuously replenish water to flush the first detection chamber 41 and the second detection chamber 42, drain the pipeline and take samples for actual measurement. Only after the values ​​are consistent with the online values ​​can the system be reset; finally, the sealing is confirmed to be intact before the supply is restored.

[0128] The above provides a detailed description of a multi-layer leak-proof conveying device and system provided in this application. For those skilled in the art, based on the ideas of the embodiments of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A multi-layer leak-proof conveying device, characterized in that, Includes a pipe assembly (1) and a detection assembly (2); The pipe assembly (1) includes a first pipe (11), a second pipe (12), a third pipe (13) and a fourth pipe (14); The first pipeline (11) is provided with a first conveying chamber (31) for conveying a first conveying medium; The first pipe (11) is provided with a first medium inlet (111) and a first medium outlet (112) that are connected to the first conveying chamber (31). The second pipe (12) is fitted outside the first pipe (11) and forms a first detection cavity (41) between it and the outer wall of the first pipe (11). The first detection cavity (41) is provided with a first filling medium; The third pipe (13) is fitted outside the second pipe (12) and forms a second conveying cavity (32) between it and the outer wall of the second pipe (12) for conveying the second conveying medium; The second pipeline (12) is provided with a second medium inlet (131) and a second medium outlet (132) that connect to the second conveying chamber (32); The fourth pipe (14) is fitted outside the third pipe (13) and forms a second detection cavity (42) between it and the outer wall of the third pipe (13). The second detection cavity (42) is provided with a second filling medium; The detection component (2) is used to detect whether the first filling medium contains the first conveying medium, and / or to detect whether the second filling medium contains the second conveying medium.

2. The multi-layer leak-proof conveying device according to claim 1, characterized in that, The second pipe (12) is provided with a third medium inlet (121) and a third medium outlet (122) that are connected to the first detection chamber (41). The fourth pipe (14) is provided with a fourth medium inlet (141) and a fourth medium outlet (142) that are connected to the second detection chamber (42).

3. The multi-layer leak-proof conveying device according to claim 2, characterized in that, The detection component (2) includes a first detector (21); the first detector (21) is used to detect whether the pipeline connected to the third medium outlet (122) and the fourth medium outlet (142) contains the first conveying medium and / or the second conveying medium; Alternatively, the detection component (2) includes a first detector (21) and a second detector (22); the first detector (21) is used to detect whether the first filling medium contains the first delivery medium; the second detector (22) is used to detect whether the second filling medium contains the second delivery medium.

4. The multi-layer leak-proof conveying device according to claim 3, characterized in that, The first detector (21) and / or the second detector (22) are independently selected from one or a combination thereof: The instrument includes a UV254 absorption detector, a UV-Vis spectral COD estimation detector, a fluorescence dissolved organic matter detector, an online total organic carbon analyzer, an online chemical oxygen demand analyzer, an online total organic halogen analyzer, a conductivity detector, a pH detector, and a turbidity detector.

5. The multi-layer leak-proof conveying device according to claim 1, characterized in that, The first pipe (11), the second pipe (12), the third pipe (13) and the fourth pipe (14) are arranged coaxially.

6. A conveying system, characterized in that, It includes a shipboard rich liquid tank (51), a shipboard lean liquid tank (61), a shore-based rich liquid tank (52), a shore-based lean liquid tank (62), and a multi-layer leak-proof conveying device as described in claim 1; The first medium inlet (111) of the multi-layer leak-proof conveying device is connected to the ship's rich liquid tank (51) through the first conveying medium input pipe (54). The first medium outlet (112) of the multi-layer leak-proof conveying device is connected to the shore-based rich liquid tank (52) through the first conveying medium output pipe (55). A first delivery pump (53) is connected in series between the first delivery medium input pipe (54) and the ship's rich liquid tank (51). The second medium inlet (131) of the multi-layer leak-proof conveying device is connected to the shore lean liquid tank (62) through the second conveying medium input pipe (64). The second medium outlet (132) of the multi-layer leak-proof conveying device is connected to the shipboard lean liquid tank (61) through the second conveying medium output pipe (65). A second delivery pump (63) is connected in series between the second delivery medium output pipe (65) and the shore lean liquid tank (62).

7. The conveying system according to claim 6, characterized in that, It also includes a filling medium tank; The second pipe (12) of the multi-layer leak-proof conveying device is provided with a third medium inlet (121) and a third medium outlet (122) that connect to the first detection chamber (41). The fourth pipe (14) of the multi-layer leak-proof conveying device is provided with a fourth medium inlet (141) and a fourth medium outlet (142) that connect to the second detection chamber (42). The filling medium tank is connected to a circulation input pipe (73) and a circulation output pipe (72). The third medium inlet (121) is connected to the circulation output pipe (72) through the first filling medium input pipe (76); The third medium outlet (122) is connected to the circulation input pipe (73) through the first filling medium output pipe (74); The fourth medium inlet (141) is connected to the circulation outlet pipe (72) through the second filling medium input pipe (77). The fourth medium outlet (142) is connected to the circulation input pipe (73) through the second filling medium output pipe (75); A third delivery pump (78) is connected in series on the circulation input pipe (73) or the circulation output pipe (72).

8. The conveying system according to claim 7, characterized in that, The first filling medium input pipe (76) is connected to the first row of clean pipes (81); A first drain valve (83) is installed on the first drain pipe (81); The second filling medium input pipe (77) is connected to the second row of clean pipes (82); A second drain valve (84) is installed on the second drain pipe (82).

9. The conveying system according to claim 7, characterized in that, It also includes a control device (9); The control device (9) is communicatively connected to the pump motor of the first delivery pump (53), the pump motor of the second delivery pump (63), the pump motor of the third delivery pump (78), and the detection component (2) of the multi-layer leak-proof delivery device. The control device (9) is used to generate a corresponding control signal based on the detection signal fed back by the detection component (2) to adjust the operating status of the pump motor of the first delivery pump (53), the pump motor of the second delivery pump (63) and the pump motor of the third delivery pump (78).

10. The conveying system according to claim 7, characterized in that, Valves (100) are installed on the first conveying medium input pipe (54), the first conveying medium output pipe (55), the second conveying medium input pipe (64), the second conveying medium output pipe (65), the first filling medium input pipe (76), the first filling medium output pipe (74), the second filling medium input pipe (77), the second filling medium output pipe (75), the circulation input pipe (73), and the circulation output pipe (72).

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