Double-layer oil tank for oil storage

Abstract

The utility model discloses a double-layer oil tank for petroleum storage, and relates to the technical field of oil tanks, the double-layer oil tank comprises an outer tank body and an inner tank body, the inner tank body is located in the outer tank body, the outer side of the outer tank body is fixed and communicated with an exhaust funnel, a sealing plug is slidably connected in the exhaust funnel, a pressure sensor is installed on the outer side of the sealing plug, and the pressure sensor is connected with the inner side of the outer tank body. When the air supply device is used, after the external environment temperature rises, the air pressure is increased, air can push the piston and compress the pressure relief spring to enter the air supply assembly, the air is prevented from being directly exhausted, the use cost is reduced, and after the environment is stable, the pressure relief spring can be compressed by the pressure relief spring to enter the air supply assembly. When the oil storage tank is used, gas can be re-injected into the cavity of the inner tank body and the cavity of the outer tank body through the gas supplementing assembly, and the initial compression amount of the pressure relief spring can be accurately adjusted by adjusting the sliding position of the pressing plate and taking data of the pressure sensor as reference through the driving mechanism, so that the pressure relief threshold value is adjusted, and diversified oil storage working condition requirements can be met.

Description

Technical Field

[0001] This utility model relates to the field of oil tank technology, and in particular to a double-walled oil tank for oil storage. Background Technology

[0002] Petroleum, one of the main targets of geological exploration, is a viscous, dark brown liquid, often referred to as the lifeblood of industry. During transportation, petroleum is usually stored in tanks. Tank farms consist of multiple tanks, and each tank farm typically stores one type of petroleum product. To better preserve the oil, the tanks are usually made of double-layered materials for a more robust structure.

[0003] In Chinese utility model patents, such as CN221643336U, a double-walled oil tank with explosion-proof features is disclosed. By adding an explosion-proof component to one side of the outer tank layer, the excess gas molecules in the cavity layer can be discharged in time through the exhaust port if the gas pressure increases due to thermal expansion and contraction, thus preventing an explosion caused by excessive gas pressure. By installing a monitoring component at the bottom of the outer tank layer, the status of the inner tank layer can be monitored in real time, and oil leakage can be detected in time to take countermeasures.

[0004] The above-mentioned technology avoids explosions caused by excessive gas pressure by adding explosion-proof components. Specifically, when the gas pressure is high, the sealing plug is squeezed and slowly moves backward. The spring is compressed, and the sealing plug passes through the exhaust port, which can release excess gas molecules in time to prevent explosions caused by excessive gas pressure. Although the above technology can avoid the increase of gas pressure in the cavity, the gas is discharged to the outside through the exhaust port. When the ambient temperature stabilizes, the cavity needs to be re-injected with inert gas, which increases the cost of use. Moreover, the compression of the spring cannot be changed after installation, which makes it difficult to meet the diverse needs of oil storage. In view of this, this application proposes a double-walled oil tank for oil storage. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a double-walled oil tank for oil storage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A double-walled oil storage tank includes an outer tank and an inner tank, with the inner tank located inside the outer tank. An exhaust pipe is fixedly connected to the outer side of the outer tank. A sealing plug is slidably connected inside the exhaust pipe, and a pressure sensor is installed on the outer side of the sealing plug. A pressure plate is slidably connected inside the exhaust pipe, and the exhaust pipe drives the pressure plate to slide via a drive mechanism. A pressure relief spring is installed between the outer side of the pressure plate and the pressure sensor. A controller is installed on the outer side of the outer tank. A collection pipe is fixedly connected to the outer side of the exhaust pipe, and a gas replenishment assembly is installed on the outer side of the outer tank, and the gas replenishment assembly is connected to the collection pipe.

[0008] Preferably, the gas replenishment component includes a collection box, which is fixedly installed on the outside of the outer tank, and the collection pipe is connected to the collection box. A vacuum pump is fixedly connected to the top surface of the collection box, and one end of the vacuum pump is connected to the outer tank through an exhaust pipe.

[0009] Preferably, the driving mechanism includes a threaded rod, which is rotatably connected to the top wall of the exhaust pipe. A threaded sleeve is threadedly connected to the outer side of the exhaust pipe, and the threaded sleeve is slidably connected inside the exhaust pipe. Two support rods are symmetrically installed on the outer side of the threaded sleeve, and the other end of each support rod is fixedly connected to the outer side of the pressure plate. A limit component is installed on the end face of the exhaust pipe, and the limit component restricts the rotation of the threaded rod.

[0010] Preferably, the limiting component includes an internal toothed ring, which is fixedly installed on the end face of the exhaust pipe. The top end of the threaded rod passes through the exhaust pipe and is fitted with a fixing plate. A top plate is installed on the outside of the fixing plate via multiple spring telescopic rods. An external toothed ring is installed on the outside of the top plate, and the external toothed ring meshes with the internal toothed ring. A handle is fixedly installed on the end face of the top plate.

[0011] Preferably, two guide rails are symmetrically installed on the side wall of the exhaust pipe, and each guide rail is slidably connected to a threaded sleeve.

[0012] Preferably, the top surface of the collection box is fixed and connected to a pressure relief valve, and the bottom surface of the outer tank is fixed and connected to an oil storage device.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model, through devices such as a gas replenishment component, a pressure relief spring, a pressure sensor, a drive mechanism, and a pressure plate, enables the gas to push the piston and compress the pressure relief spring into the gas replenishment component when the ambient temperature rises, thus avoiding direct gas discharge and reducing operating costs. When the environment stabilizes, the gas can be reinjected into the cavity between the inner and outer tanks through the gas replenishment component. Furthermore, the drive mechanism can precisely adjust the initial compression of the pressure relief spring by adjusting the sliding position of the pressure plate, using the data from the pressure sensor as a reference, thereby adjusting the pressure relief threshold and meeting diverse oil storage requirements.

[0015] 2. This utility model, through devices such as a pressure relief valve and a limiting component, enables emergency pressure relief of the collection box via the pressure relief valve, and the limiting component can effectively limit the drive mechanism, preventing the sliding position of the pressure plate from sliding arbitrarily. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a double-walled oil tank for oil storage proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the inner tank installation structure of a double-walled oil tank for petroleum storage proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the drive mechanism structure of a double-walled oil tank for oil storage proposed in this utility model.

[0019] Figure 4 This is an exploded structural diagram of the limiting component of a double-walled oil tank for oil storage proposed in this utility model.

[0020] In the diagram: 1. Outer tank; 2. Oil storage device; 3. Exhaust stack; 4. Air storage tank; 5. Vacuum pump; 6. Controller; 7. Inner tank; 8. Exhaust pipe; 9. Collection pipe; 10. Pressure relief valve; 11. Sealing plug; 12. Pressure sensor; 13. Pressure relief spring; 14. Pressure plate; 15. Threaded sleeve; 16. Support rod; 17. Threaded rod; 18. Guide rail; 19. Internal toothed ring; 20. Fixed plate; 21. Spring telescopic rod; 22. Top plate; 23. External toothed ring; 24. Handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] This utility model provides a technical solution: such as Figure 1-4As shown, a double-walled oil storage tank includes an outer tank 1 and an inner tank 7, with the inner tank 7 located inside the outer tank 1. An exhaust pipe 3 is fixed and connected to the outer side of the outer tank 1. A sealing plug 11 is slidably connected inside the exhaust pipe 3. A pressure sensor 12 is installed on the outer side of the sealing plug 11. A pressure plate 14 is slidably connected inside the exhaust pipe 3. The exhaust pipe 3 drives the pressure plate 14 to slide through a drive mechanism. A pressure relief spring 13 is installed between the outer side of the pressure plate 14 and the pressure sensor 12. A controller 6 is installed on the outer side of the outer tank 1. A collection pipe 9 is fixed and connected to the outer side of the exhaust pipe 3. An air replenishment component is installed on the outer side of the outer tank 1, and the air replenishment component is connected to the collection pipe 9.

[0023] It should be noted that the space between the inner tank 7 and the outer tank 1 is filled with inert gas. When the inert gas is heated and expands, the increased gas pressure pushes the sealing plug 11 to slide and compress the pressure relief spring 13, allowing the gas to enter the gas replenishment assembly. This facilitates the subsequent re-injection of gas between the inner tank 7 and the outer tank 1. Furthermore, through the pressure sensor 12, the drive mechanism, and the pressure plate 14, the drive mechanism can drive the pressure plate 14 to compress the pressure relief spring 13, and the pressure sensor 12 can provide real-time feedback of pressure data. Operators can precisely adjust the initial compression of the pressure relief spring 13 according to actual needs, using the data from the pressure sensor 12 as a reference, thereby setting different pressure relief thresholds to meet diverse oil storage conditions.

[0024] Furthermore, the gas replenishment component includes a collection box 4, which is fixedly installed on the outside of the outer tank 1. The collection pipe 9 is connected to the collection box 4. A vacuum pump 5 is fixed and connected to the top surface of the collection box 4. One end of the vacuum pump 5 is connected to the outer tank 1 through an exhaust pipe 8. The controller 6 controls the vacuum pump 5 to start, so that the inert gas in the collection box 4 is reinjected into the space between the inner tank 7 and the outer tank 1 through the exhaust pipe 8. This not only stabilizes the pressure but also completes the recycling of the inert gas, improves resource utilization, and ensures the safety of the oil tank.

[0025] Furthermore, the drive mechanism includes a threaded rod 17, which is rotatably connected to the top wall of the exhaust pipe 3. A threaded sleeve 15 is threadedly connected to the outer side of the exhaust pipe 3, and the threaded sleeve 15 is slidably connected inside the exhaust pipe 3. Two support rods 16 are symmetrically installed on the outer side of the threaded sleeve 15, and the other end of each support rod 16 is fixedly connected to the outer side of the pressure plate 14. A limit component is installed on the end face of the exhaust pipe 3, and the limit component restricts the rotation of the threaded rod 17. By rotating the threaded rod 17, the threaded sleeve 15 can be adjusted to slide along the axial direction of the threaded rod 17, thereby pushing the pressure plate 14 to slide through the support rods 16.

[0026] Furthermore, the limiting component includes an internal gear ring 19, which is fixedly installed on the end face of the exhaust pipe 3. The top end of the threaded rod 17 passes through the exhaust pipe 3 and is fitted with a fixing plate 20. A top plate 22 is installed on the outside of the fixing plate 20 via multiple spring telescopic rods 21. An external gear ring 23 is installed on the outside of the top plate 22, and the external gear ring 23 meshes with the internal gear ring 19. A handle 24 is fixedly installed on the end face of the top plate 22. The external gear ring 23 can be made to mesh only with the internal gear ring 19 via the spring telescopic rods 21, thereby ensuring that the threaded rod 17 will not rotate arbitrarily.

[0027] Furthermore, two guide rails 18 are symmetrically installed on the side wall of the exhaust pipe 3, and each guide rail 18 is slidably connected to the threaded sleeve 15, which can limit the threaded sleeve 15 so that it cannot rotate and can only slide linearly.

[0028] Furthermore, a pressure relief valve 10 is fixed and connected to the top surface of the collection tank 4. This allows for emergency pressure relief of the collection tank 4. An oil storage device 2 is fixed and connected to the bottom surface of the outer tank 1. The oil storage device 2 collects the oil that leaks from the inner tank 7. This technology is explained in detail in the prior art and will not be repeated here.

[0029] This utility model provides a double-walled oil tank for oil storage. The specific working principle is as follows: First, during the oil storage process, the inner tank 7 is used to store oil. The inert gas filled between the inner tank 7 and the outer tank 1 plays a protective and pressure regulating role. When the ambient temperature rises or other factors cause the inert gas between the inner tank 7 and the outer tank 1 to expand due to heat, the gas pressure increases accordingly. When the gas pressure is large, the pressure will push the sealing plug 11 to slide upward in the exhaust pipe 3, and at the same time compress the pressure relief spring 13, so that the expanded inert gas enters the collection box 4 through the collection pipe 9 for storage, thereby realizing automatic pressure relief and preventing the oil tank from being damaged due to excessive internal pressure.

[0030] Furthermore, once the ambient temperature is reset, the vacuum pump 5 can be started. The vacuum pump 5 will re-inject the inert gas stored in the collection box 4 into the space between the inner tank 7 and the outer tank 1 through the exhaust pipe 8 to replenish the pressure, maintain the stability of the internal pressure of the oil tank, and at the same time complete the recycling of the inert gas.

[0031] If it is necessary to adjust the pressure relief threshold of the oil tank, the operator pulls the handle 24 upward to disengage the external gear ring 23 from the internal gear ring 19. At this time, the operator rotates the handle 24 to drive the threaded rod 17 to rotate. Since the threaded sleeve 15 is threadedly connected to the threaded rod 17, and the guide rail 18 on the side wall of the exhaust pipe 3 limits the threaded sleeve 15 so that it cannot rotate, the threaded sleeve 15 can only slide up and down in the exhaust pipe 3 along the axial direction of the threaded rod 17. The threaded sleeve 15 drives the pressure plate 14 to move through the support rod 16, thereby compressing or releasing the pressure relief spring 13. During this process, the pressure sensor 12 provides real-time feedback of pressure data. The operator can use the data from the pressure sensor 12 as a reference to accurately adjust the initial compression of the pressure relief spring 13 according to actual needs, thereby setting different pressure relief thresholds.

[0032] After adjustment, release handle 24. Under the action of spring telescopic rod 21, outer toothed ring 23 and inner toothed ring 19 re-engage, restricting the rotation of threaded rod 17, fixing the position of pressure plate 14, and ensuring the stability of pressure relief threshold.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-walled oil storage tank, comprising an outer tank (1) and an inner tank (7), wherein the inner tank (7) is located inside the outer tank (1), characterized in that, An exhaust pipe (3) is fixed and connected to the outside of the outer tank (1). A sealing plug (11) is slidably connected inside the exhaust pipe (3). A pressure sensor (12) is installed on the outside of the sealing plug (11). A pressure plate (14) is slidably connected inside the exhaust pipe (3). The exhaust pipe (3) drives the pressure plate (14) to slide through a drive mechanism. A pressure relief spring (13) is installed between the outside of the pressure plate (14) and the pressure sensor (12). A controller (6) is installed on the outside of the outer tank (1). A collection pipe (9) is fixed and connected to the outside of the exhaust pipe (3). An air replenishment component is installed on the outside of the outer tank (1), and the air replenishment component is connected to the collection pipe (9).

2. The double-walled oil tank for petroleum storage according to claim 1, characterized in that, The gas replenishment component includes a collection box (4), which is fixedly installed on the outside of the outer tank (1). The collection pipe (9) is connected to the collection box (4). The top surface of the collection box (4) is fixed and connected to a vacuum pump (5). One end of the vacuum pump (5) is connected to the outer tank (1) through an exhaust pipe (8).

3. A double-walled oil tank for petroleum storage according to claim 2, characterized in that, The drive mechanism includes a threaded rod (17), which is rotatably connected to the top wall of the exhaust pipe (3). The outer side of the exhaust pipe (3) is threadedly connected to a threaded sleeve (15), which is slidably connected inside the exhaust pipe (3). Two support rods (16) are symmetrically installed on the outer side of the threaded sleeve (15), and the other end of each support rod (16) is fixedly connected to the outer side of the pressure plate (14). A limit assembly is installed on the end face of the exhaust pipe (3), and the limit assembly restricts the rotation of the threaded rod (17).

4. A double-walled oil tank for petroleum storage according to claim 3, characterized in that, The limiting component includes an internal toothed ring (19), which is fixedly installed on the end face of the exhaust pipe (3). The top end of the threaded rod (17) passes through the exhaust pipe (3) and is fitted with a fixing plate (20). A top plate (22) is installed on the outside of the fixing plate (20) via multiple spring telescopic rods (21). An external toothed ring (23) is installed on the outside of the top plate (22), and the external toothed ring (23) meshes with the internal toothed ring (19). A handle (24) is fixedly installed on the end face of the top plate (22).

5. A double-walled oil tank for oil storage according to claim 4, characterized in that, Two guide rails (18) are symmetrically installed on the side wall of the exhaust pipe (3), and each guide rail (18) is slidably connected to the threaded sleeve (15).

6. A double-walled oil tank for oil storage according to claim 5, characterized in that, The top surface of the collection box (4) is fixed and connected to a pressure relief valve (10), and the bottom surface of the outer tank (1) is fixed and connected to an oil storage device (2).

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