Reverse osmosis prevention device for oil leakage tank pipeline
By installing an oil pump and anti-backflow components in the oil leak tank pipeline, the problem of oil backflow caused by check valve failure was solved, achieving an effective anti-backflow effect and ensuring the safety of equipment and the environment.
Patent Information
- Application Number
- CN202422856604.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Traditional check valves are prone to failure or aging after prolonged use, and cannot effectively prevent oil from flowing back from the return tank to the leakage tank, leading to environmental pollution and equipment damage.
Design an anti-backflow device for oil leak tank pipeline, including an oil pump, a check valve, and an anti-backflow component. The oil pump provides power to ensure that the oil flows normally back to the oil tank, and the check valve acts as a one-way flow cut-off valve. When the check valve fails, the anti-backflow component prevents the oil from flowing back through the anti-backflow channel and the oil baffle plate, ensuring that the oil does not flow back into the oil leak tank.
This improves the device's ability to prevent oil backflow, avoiding environmental pollution and equipment damage caused by oil backflow, and enhancing safety and reliability.
Smart Images
Figure CN223663165U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of oil leakage tank pipeline, in particular to an oil leakage tank pipeline anti-infiltration device. BACKGROUND
[0002] The oil leakage tank pipeline anti-infiltration device is a protective equipment for a water turbine speed regulation system, and its design purpose is to prevent oil from flowing back from the oil return tank to the oil leakage tank, thereby avoiding potential environmental pollution and equipment damage. In order to prevent oil from flowing back from the oil return tank to the oil leakage tank, a check valve is arranged in the connecting pipeline between the oil return tank and the oil leakage tank in the conventional technology. However, after a long time of use, the check valve is prone to failure or aging, at which time the check valve will not be able to effectively prevent the backflow of oil, and there is still a risk of potential environmental pollution and equipment damage caused by the backflow of oil. CONTENT OF THE UTILITY MODEL
[0003] Therefore, it is necessary to provide an oil leakage tank pipeline anti-infiltration device in view of the problem that the check valve fails or ages and cannot effectively prevent the backflow of oil, thereby potentially causing environmental pollution and equipment damage.
[0004] The present application provides an oil leakage tank pipeline anti-infiltration device, which comprises:
[0005] an oil return tank;
[0006] an oil leakage tank arranged on one side of the oil return tank;
[0007] an oil extraction pipeline, one end of which is connected to the oil return tank, and the other end of which is connected to the oil leakage tank;
[0008] an oil extraction pump arranged in the oil extraction pipeline and used for pumping oil from the oil leakage tank to the oil return tank;
[0009] a check valve arranged in the oil extraction pipeline and close to the oil leakage tank; and
[0010] an anti-return assembly arranged in the oil extraction pipeline and closer to the oil return tank than the check valve, the anti-return assembly being used for preventing oil from flowing from the oil return tank to the oil leakage tank.
[0011] The oil leakage tank pipeline anti-seepage device of the scheme can prevent the oil from flowing back to the oil leakage tank from the oil return tank through the check valve when the check valve fails or ages, and can prevent the oil from flowing back in the oil pumping pipe, thereby greatly improving the anti-backflow performance of the device on the oil, and avoiding the safety problems of environmental pollution and equipment damage caused by the backflow of the oil.
[0012] The technical scheme of the present application is further described below:
[0013] In one embodiment, the anti-return assembly includes an anti-return box, a rotating shaft, an oil baffle, an elastic member, and a limiting plate. The anti-return box is a cylinder structure with both ends through. An anti-return channel is formed in the interior of the anti-return box. The rotating shaft and the elastic member are arranged on the side wall of the anti-return channel. The limiting plate is arranged on the side wall of the anti-return channel and is spaced apart from the rotating shaft. One side of the oil baffle is rotationally connected with the rotating shaft, and the other side of the oil baffle is abuttingly connected with the limiting plate. The other end of the elastic member is abuttingly connected with the oil baffle.
[0014] The oil baffle can open or close the anti-return channel.
[0015] In one embodiment, a groove is recessed in the side wall of the anti-return channel, and the rotating shaft is arranged in the groove, so that the outer periphery of the oil baffle can be tightly attached to the side wall of the anti-return channel.
[0016] In one embodiment, the anti-return assembly further includes a supporting plate. The supporting plate is protrusively arranged on the side wall of the anti-return channel. The other end of the elastic member, which is away from the oil baffle, is arranged on the supporting plate.
[0017] In one embodiment, the oil leakage tank pipeline anti-seepage device further includes a detection assembly. The detection assembly includes a collection box and a pressure sensor. The collection box is installed directly below the check valve. The pressure sensor is arranged on the outside of the bottom wall of the collection box.
[0018] In one embodiment, the oil leakage tank pipeline anti-seepage device further includes a height adjusting assembly. The height adjusting assembly is arranged on the outer side wall of the oil return tank. The oil pumping pipe is in a Z-shaped structure. The oil pumping pipe has a pleated pipe section.
[0019] In one of the embodiments, the oil return tank is provided with an oil return port, an oil return pipe is connected to the outside of the oil return port, the height adjusting assembly comprises a support, a first adjusting screw, a second adjusting screw, a first clamp and a second clamp, one end of the oil pumping pipe is inserted into the inside of the oil return pipe, the support is arranged on the outside of the oil return pipe, the first adjusting screw and the second adjusting screw are oppositely screwed on the support, the first clamp is rotationally connected with the first adjusting screw, the second clamp is rotationally connected with the second adjusting screw, and the first clamp and the second clamp are clamped on the outside of the oil return pipe.
[0020] In one of the embodiments, the height adjusting assembly further comprises a slide rail, a slide block and a limiting pin, the slide rail is arranged on the outer wall of the oil return tank, the length of the slide rail extends in the same direction as the height of the oil return tank, the slide rail is provided with a plurality of insertion holes arranged at intervals in the height direction of the oil return tank, the slide block is slidably arranged on the slide rail and connected with the limiting pin, the limiting pin can be detachably inserted and limited with any of the insertion holes, and one end of the slide block away from the slide rail is provided with a linkage, and the linkage is connected with the oil pumping pipe.
[0021] In one of the embodiments, the oil leakage tank pipeline anti-infiltration device further comprises an oil leakage pipe, and the oil leakage pipe is connected to the top of the oil leakage tank.
[0022] In one of the embodiments, the oil leakage tank pipeline anti-infiltration device further comprises a speed regulator, and the speed regulator is connected to the pipe end of the oil leakage pipe away from the oil leakage tank. BRIEF DESCRIPTION OF DRAWINGS
[0023] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and are used to interpret the illustrative embodiments of the present application and their descriptions, and do not constitute improper limitations to the present application.
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0025] Figure 1 The structural schematic diagram of the oil leakage tank pipeline anti-infiltration device according to an embodiment of the present application.
[0026] Figure 2 The assembly structural schematic diagram of the height adjusting assembly, the oil pumping pipe and the oil return tank according to an embodiment.
[0027] Figure 3Internal structure diagram of the anti-return assembly of an embodiment.
[0028] Figure 4 Structure diagram of the detection assembly of an embodiment.
[0029] Legend of reference signs:
[0030] 100, oil leakage tank pipeline anti-return device; 10, oil return tank; 20, oil leakage tank; 30, oil pumping pipe; 31, corrugated pipe section; 40, oil pumping pump; 50, check valve; 60, anti-return assembly; 61, anti-return box; 611, anti-return channel; 612, groove; 62, rotating shaft; 63, oil baffle; 64, elastic member; 65, limiting plate; 66, supporting plate; 70, detection assembly; 71, collection box; 72, pressure sensor; 80, height adjusting assembly; 81, bracket; 82, first adjusting screw; 83, second adjusting screw; 84, first clamp; 85, second clamp; 86, sliding rail; 861, insertion hole; 87, sliding block; 871, linkage; 88, limiting bolt; 90, oil return pipe; 90a, oil leakage pipe; 90b, speed regulator. DETAILED DESCRIPTION
[0031] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.
[0032] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0033] In addition, the terms "first", "second", and the like, if any appear in the description, are used for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.
[0034] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0035] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.
[0036] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.
[0037] Referring to Figure 1 A leakage tank pipeline anti-seepage device 100 is shown in an embodiment of the present application, which comprises an oil return tank 10, a leakage tank 20, an oil extraction pipe 30, an oil extraction pump 40, a check valve 50 and an anti-return assembly 60.
[0038] The oil leakage tank 20 is arranged on one side of the oil return tank 10. Specifically, the oil leakage tank 20 is arranged in a spaced manner with the oil return tank 10, and the installation height of the oil leakage tank 20 is lower than that of the oil return tank 10, so that the oil in the oil leakage tank 20 needs to rely on the flow power provided by the oil pump 40 to overcome the gravitational potential to flow to the high-position oil return tank 10.
[0039] One end of the oil suction pipe 30 is connected to the oil return tank 10, and the other end of the oil suction pipe 30 is connected to the oil leakage tank 20. In this way, the oil can flow between the oil leakage tank 20 and the oil return tank 10 through the oil suction pipe 30.
[0040] The oil pump 40 is arranged in the oil suction pipe 30 and is used to pump the oil from the oil leakage tank 20 to the oil return tank 10. The check valve 50 is arranged in the oil suction pipe 30 and is arranged close to the oil leakage tank 20. The anti-return assembly 60 is arranged in the oil suction pipe 30 and is arranged closer to the oil return tank 10 than the check valve 50. The anti-return assembly 60 is used to prevent the oil from flowing from the oil return tank 10 to the oil leakage tank 20.
[0041] In summary, the implementation of the technical scheme of the embodiment will have the following beneficial effects: when the oil leakage tank pipeline anti-return seepage device 100 of the scheme is in normal work, the oil can be normally pumped from the oil leakage tank 20 to the oil return tank 10 by means of the power provided by the oil pump 40. In this process, the check valve 50 plays a one-way flow blocking role to prevent the oil in the oil return tank 10 from flowing back to the oil leakage tank 20 through the check valve 50. However, after a long time of use, the check valve 50 will inevitably fail or age, causing the flow blocking performance of the check valve 50 to decrease. At this time, the anti-return assembly 60 will play a role to prevent the backflow of the oil in the oil suction pipe 30, ensuring that the oil cannot flow back from the oil return tank 10 to the oil leakage tank 20, thereby greatly improving the anti-return flow performance of the device to the oil, avoiding the safety problems of environmental pollution and equipment damage caused by the backflow of the oil.
[0042] Please continue to refer to Figure 3 In one embodiment, the anti-return assembly 60 includes an anti-return box 61, a rotating shaft 62, an oil blocking plate 63, an elastic member 64, and a limiting plate 65. The anti-return box 61 is provided in a cylindrical structure with both ends penetrating. An anti-return channel 611 is formed in the inside of the anti-return box 61. The rotating shaft 62 and the elastic member 64 are arranged on the side wall of the anti-return channel 611, respectively. The limiting plate 65 is arranged on the side wall of the anti-return channel 611 and is arranged in a spaced manner opposite to the rotating shaft 62. One side of the oil blocking plate 63 is rotationally connected with the rotating shaft 62, and the other side of the oil blocking plate 63 is abuttingly matched with the limiting plate 65. The other end of the elastic member 64 is abuttingly matched with the oil blocking plate 63. The oil blocking plate 63 can open or close the anti-return channel 611.
[0043] It can be understood that the shape and size of the oil baffle 63 are matched with the shape and size of the anti-return channel 611 respectively. For example, the anti-return channel 611 is circular in the present application, and correspondingly, the oil baffle 63 is also circular. In the initial state, the elastic member 64 exerts an elastic pushing force on one side of the oil baffle 63, while the limiting plate 65 is resisted on the other side of the oil baffle 63. The elastic pushing force and the abutting force form a force balance, so that the oil baffle 63 is parallel to the radial section of the anti-return channel 611. At this time, the outer periphery of the oil baffle 63 is completely in close contact with the inner circumferential wall of the anti-return channel 611 to form a sealing fit, and the oil baffle 63 closes the anti-return channel 611.
[0044] Further, a sealing ring can also be installed on the outer periphery of the oil baffle 63, and the sealing ring is abutted with the inner circumferential wall of the anti-return channel 611 to improve the sealing performance and prevent the oil from flowing back from the anti-return assembly 60 through the fit gap.
[0045] Please continue to refer to Figure 3 On the basis of the above embodiments, the side wall of the anti-return channel 611 is recessed with a recess 612, and the rotating shaft 62 is arranged in the recess 612, so that the outer periphery of the oil baffle 63 can be in close contact with the side wall of the anti-return channel 611. The rotating shaft 62 is installed inside the recess 612, avoiding the rotating shaft 62 protruding from the side wall of the anti-return channel 611. After the oil baffle 63 is connected with the rotating shaft 62, the outer periphery of the oil baffle 63 will not be interfered by the rotating shaft 62, but can be in close contact with the side wall of the anti-return channel 611, thereby ensuring the sealing effect.
[0046] Further, the anti-return assembly 60 further comprises a support plate 66, the support plate 66 is protrudingly arranged on the side wall of the anti-return channel 611, and the end of the elastic member 64 away from the oil baffle 63 is arranged on the support plate 66. One side of the support plate 66 is fixedly installed on the side wall of the anti-return channel 611, and the other side extends towards the center of the anti-return channel 611. The elastic member 64 can be vertically installed on the support plate 66, and after being connected with the oil baffle 63, it can still ensure that no distortion occurs, thereby having better elastic performance, exerting an effective elastic pushing force on the oil baffle 63 to block the anti-return channel 611 and prevent the oil from flowing back.
[0047] For example, the elastic member 64 can be any one of a spring, a spring piece, an elastic column and the like, which can be flexibly selected according to actual needs.
[0048] Please continue to refer to Figure 4 In addition, on the basis of any of the above embodiments, the oil leakage tank pipeline anti-return seepage device 100 further comprises a detection assembly 70, the detection assembly 70 comprises a collection box 71 and a pressure sensor 72, the collection box 71 is installed directly below the check valve 50, and the pressure sensor 72 is arranged outside the bottom wall of the collection box 71.
[0049] In some extreme cases, the check valve 50 and the anti-return assembly 60 can be damaged, and the oil leaking from the check valve 50 can drip into the collection box 71 and be collected, avoiding the pollution of the environment and equipment by the oil. As the amount of collected oil gradually increases, the pressure sensor 72 detects the change in the weight inside the collection box 71, and then sends an alarm to remind the staff to timely repair and intervene.
[0050] Please continue to refer to Figure 2 , further, the oil leakage tank pipeline anti-return seepage device 100 further comprises a height adjusting assembly 80, the height adjusting assembly 80 is arranged on the outer side wall of the oil return tank 10, the oil extraction pipe 30 is provided in a Z-shaped structure, and the oil extraction pipe 30 has a pleated pipe section 31. In actual use, when the check valve 50 and the anti-return assembly 60 are damaged, the height of the Z-shaped oil extraction pipe 30 is adjusted by operating the height adjusting assembly 80, the pleated pipe section 31 of the oil extraction pipe 30 is twisted and deformed, and the oil flowing out of the oil return tank 10 is cut off, which can also prevent the oil from flowing back.
[0051] Specifically, the oil extraction pipe 30 comprises a first horizontal pipe section, a vertical pipe section and a second horizontal pipe section, the vertical pipe section is connected between the first horizontal pipe section and the second horizontal pipe section, the other end of the first horizontal pipe section away from the vertical pipe section is connected to the oil leakage tank 20, and the other end of the second horizontal pipe section away from the vertical pipe section is connected to the oil return tank 10. The pleated pipe section 31 is formed on the vertical pipe section, facilitating height expansion adjustment.
[0052] Please continue to refer to Figure 2 In one embodiment, the oil return tank 10 is provided with an oil return port, an oil return pipe 90 is connected to the outside of the oil return port, the height adjusting assembly 80 comprises a bracket 81, a first adjusting screw 82, a second adjusting screw 83, a first clamp 84 and a second clamp 85, one end of the oil extraction pipe 30 is inserted into the inside of the oil return pipe 90, the bracket 81 is arranged on the outside of the oil return pipe 90, the first adjusting screw 82 and the second adjusting screw 83 are screwed on the bracket 81 in opposite directions, the first clamp 84 is rotationally connected to the first adjusting screw 82, the second clamp 85 is rotationally connected to the second adjusting screw 83, and the first clamp 84 and the second clamp 85 are clamped to the outside of the oil return pipe 90.
[0053] During installation, the first adjusting screw 82 and the second adjusting screw 83 are screwed, and the first adjusting screw 82 and the second adjusting screw 83 move towards each other to generate pressure on the first clamp 84 and the second clamp 85 respectively, so that the first clamp 84 and the second clamp 85 press and fix the oil return pipe 90 and the oil extraction pipe 30, preventing the oil extraction pipe 30 from falling off.
[0054] Further, the height adjusting assembly 80 further comprises a slide rail 86, a slide block 87 and a limiting pin 88. The slide rail 86 is arranged on the outer wall of the oil return tank 10, and the length direction of the slide rail 86 is consistent with the height direction of the oil return tank 10. The slide rail 86 is provided with a plurality of insertion holes 861 arranged at intervals along the height direction of the oil return tank 10. The slide block 87 is slidably arranged on the slide rail 86 and connected with the limiting pin 88. The limiting pin 88 can be detachably inserted into any insertion hole 861. The end of the slide block 87 away from the slide rail 86 is provided with a linkage 871 connected with the oil extraction pipe 30.
[0055] When the height of the oil extraction pipe 30 is adjusted, the slide block 87 is slid up and down along the slide rail 86. The linkage 871 of the slide block 87 synchronously drives the oil extraction pipe 30 to move in the height direction. When the required height position is adjusted, the limiting pin 88 is inserted into the insertion hole 861 at this time to fix the slide block 87, the linkage 871 and the oil extraction pipe 30.
[0056] In addition, the oil return tank pipeline anti-seepage device 100 further comprises an oil leakage pipe 90a connected to the top of the oil return tank 20. Further, the oil return tank pipeline anti-seepage device 100 further comprises a speed regulator 90b connected to the pipe end of the oil leakage pipe 90a away from the oil return tank 20. The speed regulator 90b is applied to the speed regulating system of the water turbine, and plays a role of speed regulation. The oil leaked from the speed regulator 90b flows into the oil return tank 20 along the oil leakage pipe 90a to realize recovery, and prevents the oil from leaking out to pollute the environment.
[0057] The technical features of the above-mentioned embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.
[0058] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.
Claims
1. A backflow prevention device for oil leak tank pipelines, characterized in that, include: Return to fuel tank; An oil leakage tank is located on one side of the oil return tank; An oil extraction pipe, one end of which is connected to the return oil tank and the other end of which is connected to the leakage oil tank; An oil pump is provided in the oil extraction pipe for pumping oil from the leak tank to the return tank. A check valve is provided in the oil extraction pipe and located near the oil leakage tank; as well as An anti-backflow component is disposed in the oil extraction pipe and is located closer to the return oil tank than the check valve. The anti-backflow component is used to prevent oil from flowing from the return oil tank to the leakage tank.
2. The anti-backflow device for oil leakage tank pipelines according to claim 1, characterized in that, The anti-reverse assembly includes an anti-reverse box, a rotating shaft, an oil baffle, an elastic element, and a limiting plate. The anti-reverse box is a cylindrical structure with both ends through it. An anti-reverse channel is formed inside the anti-reverse box. The rotating shaft and the elastic element are respectively disposed on the side wall of the anti-reverse channel. The limiting plate is disposed on the side wall of the anti-reverse channel and is arranged at a distance from the rotating shaft. One side of the oil baffle is rotatably connected to the rotating shaft, and the other side of the oil baffle abuts against the limiting plate. The other end of the elastic element abuts against the oil baffle. The oil baffle can open or close the anti-return channel.
3. The anti-backflow device for oil leakage tank pipeline according to claim 2, characterized in that, The anti-return channel has a recessed groove on its side wall, and the rotating shaft is disposed in the groove so that the outer periphery of the oil baffle can be tightly attached to the side wall of the anti-return channel.
4. The anti-backflow device for oil leakage tank pipeline according to claim 2, characterized in that, The anti-reverse assembly also includes a support plate, which protrudes from the side wall of the anti-reverse channel, and the end of the elastic member away from the oil baffle is disposed on the support plate.
5. The anti-backflow device for oil leakage tank pipelines according to claim 1, characterized in that, The backflow prevention device for the oil leak tank pipeline also includes a detection component, which includes a collection box and a pressure sensor. The collection box is installed directly below the check valve, and the pressure sensor is located on the outside of the bottom wall of the collection box.
6. The anti-backflow device for oil leakage tank pipelines according to claim 1, characterized in that, The backflow prevention device for the oil leakage tank pipeline also includes a height adjustment component, which is installed on the outer wall of the return oil tank. The oil extraction pipe is designed with a Z-shaped structure and has pleated pipe sections.
7. The anti-backflow device for oil leakage tank pipelines according to claim 6, characterized in that, The return oil tank has a return oil port, and a return oil pipe is connected to the outside of the return oil port. The height adjustment assembly includes a bracket, a first adjusting screw, a second adjusting screw, a first clamp, and a second clamp. One end of the oil extraction pipe is inserted into the inside of the return oil pipe. The bracket is located outside the return oil pipe. The first adjusting screw and the second adjusting screw are screwed onto the bracket in opposite directions. The first clamp is rotatably connected to the first adjusting screw, and the second clamp is rotatably connected to the second adjusting screw. The first clamp and the second clamp are clamped to the outside of the return oil pipe.
8. The anti-backflow device for oil leakage tank pipeline according to claim 7, characterized in that, The height adjustment assembly further includes a slide rail, a slider, and a limiting pin. The slide rail is disposed on the outer wall of the return oil tank, and the length extension direction of the slide rail is consistent with the height direction of the return oil tank. The slide rail has a plurality of insertion holes arranged at intervals along the height direction of the return oil tank. The slider is slidably disposed on the slide rail and connected to the limiting pin. The limiting pin can be detachably inserted into any of the insertion holes for limiting. The end of the slider away from the slide rail is provided with a linkage member, and the linkage member is connected to the oil suction pipe.
9. The anti-backflow device for oil leakage tank pipeline according to claim 1, characterized in that, The backflow prevention device for the oil leak tank pipeline also includes an oil leak pipe, which is connected to the top of the oil leak tank.
10. The anti-backflow device for oil leakage tank pipeline according to claim 9, characterized in that, The backflow prevention device for the oil leak tank pipeline also includes a speed regulator, which is connected to the end of the oil leak pipe away from the oil leak tank.