An explosion-proof underground oil depot

Abstract

The application discloses an anti-explosion underground oil depot, which comprises an oil inlet pipe, an oil passing hole, a valve, an oil tank, an oil storage bin, a partition plate, a communication pipe, an oil pumping cabin and an oil outlet pipe. Oil in the oil pumping cabin is frequently pumped in and pumped out. In most cases, the oil-gas mixture concentration in the oil pumping cabin is within the combustion and explosion range, and the oil-gas mixture concentration in the oil storage bin is outside the combustion and explosion range, and is stable. The oil storage bin and the oil pumping cabin are designed in a split type, the oil tank is deeply buried underground, and is difficult to be attacked. The upper oil tank is the oil storage bin, and the lower oil tank is the oil pumping cabin, so that the oil pumping cabin is more difficult to be attacked, and the anti-attack capability of the oil depot is greatly improved. The patent has a simple structure, and effectively avoids the combustion and explosion risks of the storage bin without affecting the storage capacity.

Description

Technical Field

[0001] This invention relates to the field of storage containers, and in particular to an underground protective oil depot. Background Technology

[0002] Underground oil depots mainly consist of tanks, oil pumps, oil pipelines, storage tanks, and electronic level gauges. The main advantages of underground oil tanks are high safety. Because they are buried underground, they avoid the impact of external factors on the oil and prevent oil spills from polluting the environment. Furthermore, underground oil tanks improve storage efficiency because underground storage reduces evaporation losses and improves storage quality. Therefore, ensuring the safety and resilience of the oil depot itself is particularly crucial. Summary of the Invention

[0003] The purpose of this invention is to provide an explosion-proof underground oil depot to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an explosion-proof underground oil depot, characterized in that it includes an oil inlet pipe, an oil passage hole, valves, an oil tank, an oil storage tank, a partition, a connecting pipe, an oil extraction tank, and an oil outlet pipe. The explosion-proof underground oil depot is located below ground level. An oil passage hole is provided at the top of the oil tank. The oil inlet pipe is fixedly connected to the oil passage hole. The upper layer of the oil tank is divided into several oil storage tanks by partitions. Adjacent oil storage tanks are connected vertically through oil passage holes. Each oil passage hole is equipped with a valve. The lower layer of the oil tank is an oil extraction tank. An oil passage hole is provided at the lower end of the lowest oil storage tank. Oil passage holes are provided at both the upper and lower ends of the oil extraction tank. The oil passage hole at the lower end of the oil storage tank and the oil passage hole at the upper end of the oil extraction tank are fixedly connected through a connecting pipe. The oil passage hole at the upper end of the oil extraction tank is fixedly connected to the oil outlet pipe.

[0005] Furthermore, the explosion-proof underground oil depot also includes an oil inlet pipe baffle, wherein the oil inlet pipe consists of two vertical pipes extending to the same height above the oil tank, and then converging into one horizontal pipe, which connects to an oil passage hole set at the top of the oil tank, and an oil inlet pipe baffle is set above the horizontal pipe.

[0006] Furthermore, the explosion-proof underground oil depot also includes protective walls, which are divided into oil storage tank protective walls, connecting pipe protective walls, and pumping tank protective walls. The protective walls are assembled from split structures, which are generally clamp-shaped with a semi-circular tail end and a semi-circular notch at the front end. The two long sides of the front notch are slightly different, with one end being slightly longer and the other end being slightly shorter.

[0007] Furthermore, the protective wall of the oil storage tank is set on the outside of the oil storage tank, with the upper end slightly lower than the horizontally extending oil inlet pipe and the lower end slightly lower than the lower end of the oil storage tank.

[0008] Furthermore, the protective wall of the oil pumping tank is located on the outside of the oil pumping tank, with its upper end slightly higher than the top of the oil pumping tank and its lower end slightly lower than the bottom of the oil pumping tank.

[0009] Furthermore, the connecting pipe protective wall is disposed on the outside of the connecting pipe, and the cross-sectional shape of the connecting pipe protective wall component is proportionally reduced to that of the oil storage tank protective wall. The diameter of the connecting pipe protective wall is smaller than that of the oil storage tank protective wall and the oil pumping tank protective wall, and its upper end height is slightly lower than that of the lower end height of the oil storage tank protective wall, and its lower end height is slightly lower than that of the upper end height of the oil pumping tank protective wall.

[0010] Furthermore, the shells of the upper and lower oil storage tanks and the oil pumping tanks of the oil tank each include an outer shell, a liquid layer, a self-repairing layer, and an inner shell, wherein the outer shell is located at the outermost layer, the inner shell is located at the innermost layer, the liquid layer is located between the outer shell and the inner shell, and the self-repairing layer is located on the inner side of the inner shell and is in contact with the liquid layer.

[0011] Furthermore, both sides of the partition are provided with explosion-proof material layers.

[0012] Furthermore, the oil extraction tank is also provided with an upper baffle and a lower baffle. The upper baffle is located at the upper end of the oil extraction tank, and its diameter is larger than that of the oil extraction tank. It extends to the outside of the oil extraction tank protective wall and has a groove in its center to allow the connecting pipe and the connecting pipe protective wall to pass through. The lower baffle is located at the lower end of the oil extraction tank, and its diameter is the same as that of the upper baffle. Its central groove is smaller than that of the upper baffle, allowing only the oil outlet pipe to pass through.

[0013] Furthermore, an oil pump is installed inside the oil extraction tank, with one end of the oil pump fixedly connected to the inside of the oil extraction tank and the other end fixedly connected to the oil outlet pipe.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] (1) The present invention adopts a split design, placing the flammable and explosive oil pumping tank at the bottom, which can protect the safety of the oil depot to the greatest extent.

[0016] (2) The present invention is buried deep underground and is equipped with multiple protective walls, making it extremely safe.

[0017] (3) The oil depot shell of the present invention has a double-layer structure, and a protective layer and a repair layer are provided inside, which can greatly reduce the damage caused to the protective oil depot by attacks such as fragments and bullets. Attached Figure Description

[0018] Figure 1 Schematic diagram of the oil depot.

[0019] Figure 2 A top-down view of the oil depot.

[0020] Figure 3 Schematic diagram of wall panel components.

[0021] Figure 4 Schematic diagram of the casing.

[0022] Figure 5 Schematic diagram of the cabin.

[0023] Figure 6 Valve diagram.

[0024] Among them, 1. Oil inlet pipe, 2. Oil inlet pipe baffle, 3. Oil storage tank protective wall, 4. Oil passage hole, 5. Valve, 6. Oil tank, 7. Oil storage tank, 8. Baffle, 9. Explosion-proof material layer, 10. Outer shell, 11. Liquid layer, 12. Self-repairing layer, 13. Inner shell, 14. Connecting pipe, 15. Connecting pipe protective wall, 16. Oil pumping tank, 17. Oil pumping tank upper baffle, 18. Oil pumping tank protective wall, 19. Oil pumping tank lower baffle, 20. Oil pump, 21. Oil outlet pipe. Detailed Implementation

[0025] The purpose of this invention is to address the shortcomings of existing oil depots by providing an explosion-proof underground oil depot, specifically achieved through the following technical solution:

[0026] Reference Figure 1 , Figure 6 This embodiment provides an explosion-proof underground oil depot, comprising an oil inlet pipe 1, an oil passage hole 4, a valve 5, an oil tank 6, an oil storage tank 7, a partition 8, a connecting pipe 14, an oil extraction chamber 16, and an oil outlet pipe 21. In this type of explosion-proof underground oil depot, the oil tank 6 is located below ground level, and the top of the oil tank 6 is provided with an oil passage hole 5. Oil entering from the top can ensure the maximum oil storage capacity of the oil depot.

[0027] Reference Figure 1 , Figure 6 The oil inlet pipe 1 is fixedly connected to the oil passage hole 5. The upper layer of the oil tank 6 is divided into several oil storage chambers 7 by the partition plate 8. The oil storage chambers 7 are generally full of oil or empty, so their oil-gas ratio is outside the explosion range and their properties are relatively stable. They are placed on the upper layer.

[0028] Reference Figure 1 , Figure 6 The adjacent oil storage tanks 7 are connected vertically through oil passage holes 4. Each oil passage hole 4 is equipped with a valve 5, which divides the oil storage tank 7 into 5 compartments, thereby improving the safety performance of the oil depot and maximizing the protection of the oil depot's safety.

[0029] Reference Figure 1 , Figure 6 The lower layer of oil tank 6 is the oil extraction tank 16. Oil enters and exits the oil extraction tank 16 frequently, and its oil-gas ratio is always within the explosive range. Therefore, its properties are unstable. Placing it at the bottom of oil tank 6 can maximize the protection of the oil depot's safety.

[0030] Reference Figure 1 , Figure 6The lowest oil storage tank 7 has an oil passage hole 4 at its lower end, and the oil pumping tank 16 has oil passage holes 4 at both its upper and lower ends. The oil passage holes 4 at the lower end of the oil storage tank 7 and the oil passage holes 4 at the upper end of the oil pumping tank 16 are fixedly connected by a connecting pipe 14. The oil passage hole 4 at the upper end of the oil pumping tank 16 is fixedly connected to the oil outlet pipe 21. The oil storage tank 7 and the oil pumping tank 16 adopt a separate design. In this way, when the oil depot is attacked, the flammable and explosive oil pumping tank 16 is located at the bottom and is difficult to be attacked. Even if it is attacked, the oil storage tank 7 has a certain possibility of withstanding the damage from the explosion. If the oil storage tank 7 is attacked, the oil pumping tank 16 is less likely to be attacked because the oil depot adopts a separate design. In actual use, the oil extraction tank 16 extracts oil from the lowest oil storage tank 7 each time. When the lowest oil storage tank 7 is empty, oil is extracted from the fourth oil storage tank 7 above it and transferred to the lowest oil storage tank 7. However, at this time, only the fourth oil storage tank 7 in the middle transfers oil to the fifth oil storage tank 7, while the oil in the first, second, and third oil storage tanks 7 remains unchanged. Each time an oil storage tank 7 is emptied, the oil stored in the oil storage tank 7 above it is transferred to the lowest oil storage tank 7. Inside tank 7, this ensures that when oil is being pumped out of the oil depot, the top tank 7 is always full of oil. Only when the oil depot is completely emptied will the top tank 7 be empty. This is because the oil-gas ratio in both full and empty tank 7 is within a safe range, and the possibility of explosion in an empty tank 7 is even lower. Therefore, placing the empty tank 7, which has a lower probability of explosion, closer to the pumping tank 16 can better protect the safety of the oil depot.

[0031] Reference Figure 1 An explosion-proof underground oil depot also includes an oil inlet pipe baffle 2, wherein the oil inlet pipe 1 extends from two vertical pipes to the same height above the oil tank 6, and then merges into one pipe in the horizontal direction. The two oil inlet pipes can be used simultaneously or separately. Even if one end of the oil inlet pipe is damaged, the other end can still be used, which increases the service life of the oil depot in war.

[0032] Reference Figure 1 The oil passage 5 is connected to the top of the oil tank 6. An oil inlet baffle 2 is installed above the horizontal pipe. The oil inlet baffle 2 can effectively block the attack of explosive fragments from the vertical direction and improve the oil depot's resistance to impact.

[0033] Reference Figure 1-3An explosion-proof underground oil depot also includes a protective wall, which is divided into an oil storage tank protective wall 3, a connecting pipe protective wall 15, and an oil pumping tank protective wall 18. The protective wall is a split structure spliced ​​together. The split structure is generally pincer-shaped, with a semi-circular tail end and a semi-circular notch at the front end. The two long sides of the front notch are slightly different, with one end being slightly longer and the other end being slightly shorter. The spliced ​​structure makes it easy to replace the protective wall when it is damaged, and the protective wall can withstand explosive attacks from all around the oil depot.

[0034] Reference Figure 1 The oil storage tank retaining wall 3 is located outside the oil storage tank 7, with its upper end slightly lower than the horizontally extending oil inlet pipe 1 and its lower end slightly lower than the lower end of the oil storage tank 7. The pumping tank retaining wall 18 is located outside the pumping tank 16, with its upper end slightly higher than the top of the pumping tank 16 and its lower end slightly lower than the bottom of the pumping tank 16. The connecting pipe retaining wall 15 is located outside the connecting pipe 14. The cross-sectional shape of the connecting pipe retaining wall 15 is proportionally reduced from that of the oil storage tank retaining wall 3. The diameter of the connecting pipe retaining wall 15 is smaller than that of the oil storage tank retaining wall 3 and the pumping tank retaining wall 18, and its upper end is slightly lower than the lower end of the oil storage tank retaining wall 3, and its lower end is slightly lower than the upper end of the pumping tank retaining wall 18. Thus, the sides of the underground oil depot are enclosed by retaining walls, greatly improving its safety.

[0035] Reference Figure 4 The oil tank 6 has two layers: the oil storage tank 7 and the pumping tank 16. Both layers consist of an outer shell 10, a liquid layer 11, a self-repairing layer 12, and an inner shell 13. The outer shell 10 is the outermost layer, the inner shell 13 is the innermost layer, and the liquid layer 11 is located between the outer shell 10 and the inner shell 13. When an attack penetrates the outer shell 10, the small perforation causes the explosive energy to concentrate in a small area, forming a focused jet. At this time, the liquid layer 11 sprays out from the perforation. The liquid particles in the liquid layer 11 impact the jet, interfering with its stability to some extent. Furthermore, the pressure pulse generated when the jet propagates within the liquid can be reflected through the inner and outer shells of the oil tank, interfering with the jet's stability. The liquid can be water or a shear-thickening liquid (STP).

[0036] Reference Figure 4 The self-repairing layer 12 is located inside the inner shell 13 and is in contact with the liquid layer 11. When a bullet or fragment penetrates the inner shell of the oil depot, the self-repairing layer 12 can contract and rebound, reducing the perforation area. At the same time, a small amount of fuel leakage inside the oil depot can, to some extent, fill the perforation, thereby achieving a self-sealing effect. The structure of the self-repairing layer 12, from the outside to the inside, consists of a protective skeleton layer, a liquid rubber layer, and a barrier layer.

[0037] Reference Figure 1 , Figure 5The partition 8 has explosion-proof material layers 9 on both sides. The explosion-proof material layers 9 are honeycomb in shape. When a bullet or fragment enters the oil depot, the explosion-proof material divides the space into several cavities, which can effectively suppress the spread of flames and cause the combustion pressure wave to decay rapidly. At the same time, the high specific surface area of ​​the material can absorb and conduct a large amount of heat energy, destroying the explosion conditions of the combustion medium, thereby reducing the flame combustion rate and ensuring the safety and storage of fuel oil.

[0038] Reference Figure 1 The oil extraction tank 16 is further provided with an upper baffle 17 and a lower baffle 19. The upper baffle 17 is located at the upper end of the oil extraction tank 16, and its diameter is larger than that of the oil extraction tank 16. It extends to the outside of the oil extraction tank protective wall 18 and has a groove in its center so that the connecting pipe 14 and the connecting pipe protective wall 15 can pass through. The lower baffle 19 is located at the lower end of the oil extraction tank 16, and its diameter is the same as that of the upper baffle 17. Its central groove is smaller than that of the upper baffle 17, and can only allow the oil outlet pipe 21 to pass through. Because the oil extraction tank 16 is flammable and explosive, it is enclosed by the oil extraction tank protective wall 18, the upper baffle 17, and the lower baffle 19 to protect the oil extraction tank 16 to the greatest extent.

[0039] Reference Figure 5 An oil pump 20 is installed inside the oil pumping tank 16. One end of the oil pump 20 is fixedly connected to the inside of the oil pumping tank 16, and the other end is fixedly connected to the oil outlet pipe 21. The oil pump 20 sends the oil in the oil pumping tank 16 into the oil outlet pipe 21, so that the oil depot can complete the oil transportation function.

Claims

1. An explosion-proof underground oil depot, characterized in that, It includes an inlet pipe (1), an oil passage (4), a valve (5), an oil tank (6), an oil storage tank (7), a baffle (8), a connecting pipe (14), an oil pumping compartment (16), and an outlet pipe (21), among which An explosion-proof underground oil depot is located below ground level, with an oil passage (4) provided on the top of the oil tank (6). The oil inlet pipe (1) is fixedly connected to the oil passage hole (4). The upper part of the oil tank (6) is divided into several oil storage compartments (7) by a partition (8). Adjacent oil storage tanks (7) are connected vertically via oil passages (4). Each oil passage (4) is equipped with a valve (5). The lower level of the oil tank (6) is the oil pumping tank (16). The bottom oil storage tank (7) is provided with an oil passage hole (4) at the bottom, and the oil pumping tank (16) is provided with an oil passage hole (4) at both the top and bottom. The oil passage (4) at the lower end of the oil storage tank (7) and the oil passage (4) at the upper end of the oil pumping tank (16) are fixedly connected by a connecting pipe (14). An oil passage (4) at the upper end of the oil extraction tank (16) is fixedly connected to the oil outlet pipe (21). The oil storage tank (7) is used to store oil in a full or empty state, so that the oil-gas ratio is kept outside the explosion range; The oil storage tank (7) is separately located in the lower layer of the oil tank (6). It also includes protective walls, which are divided into oil storage tank protective walls (3), connecting pipe protective walls (15), and pumping tank protective walls (18). The wall panel is constructed by splicing together a modular structure. The split structure is shaped like a pincer, with a semi-circular tail and a semi-circular notch at the front. The two long sides of the notch at the front are slightly different; one end is slightly longer and the other is slightly shorter. The shells of the upper and lower oil storage tanks (7) and the pumping tank (16) of the oil tank (6) both include an outer shell (10), a liquid layer (11), a self-repairing layer (12), and an inner shell (13), wherein The outer shell (10) is located at the outermost layer, and the inner shell (13) is located at the innermost layer. A liquid layer (11) is disposed between the outer shell (10) and the inner shell (13). The self-repairing layer (12) is disposed inside the inner shell (13) and is in contact with the liquid layer (11).

2. The explosion-proof underground oil depot according to claim 1, characterized in that, It also includes an oil inlet pipe baffle (2), in which The oil inlet pipe (1) extends from two vertical pipes to the same height above the oil tank (6), and then merges into one pipe in the horizontal direction, connecting to the oil passage hole (4) set at the top of the oil tank (6). An oil inlet baffle (2) is installed above the horizontal pipe.

3. The explosion-proof underground oil depot according to claim 1, characterized in that, The oil storage tank wall (3) is located outside the oil storage tank (7), with its upper end slightly lower than the horizontally extending oil inlet pipe (1) and its lower end slightly lower than the lower end of the oil storage tank (7).

4. The explosion-proof underground oil depot according to claim 1, characterized in that, The oil pumping tank wall (18) is located on the outside of the oil pumping tank (16), with its upper end slightly higher than the top of the oil pumping tank (16) and its lower end slightly lower than the bottom of the oil pumping tank (16).

5. The explosion-proof underground oil depot according to claim 1, characterized in that, The connecting pipe retaining wall (15) is located on the outside of the connecting pipe (14). The cross-sectional shape of the connecting pipe retaining wall (15) component is a proportional reduction of the oil storage tank retaining wall (3). The diameter of the connecting pipe wall (15) is smaller than that of the oil storage tank wall (3) and the oil pumping tank wall (18), and its upper end height is slightly lower than that of the lower end of the oil storage tank wall (3), and its lower end height is slightly lower than that of the upper end of the oil pumping tank wall (18).

6. The explosion-proof underground oil depot according to claim 1, characterized in that, The partition (8) is provided with explosion-proof material layers (9) on both sides.

7. The explosion-proof underground oil depot according to claim 5, characterized in that, The oil extraction tank (16) is also provided with an upper baffle (17) and a lower baffle (19) above and below it. The upper baffle (17) of the oil pumping tank is located at the upper end of the oil pumping tank (16). Its diameter is larger than that of the oil pumping tank (16) and extends to the outside of the oil pumping tank protective wall (18). It has a groove in the center so that the connecting pipe (14) and the connecting pipe protective wall (15) can pass through it. The lower baffle (19) of the oil pumping tank is located at the lower end of the oil pumping tank (16). Its diameter is the same as that of the upper baffle (17) of the oil pumping tank. Its central slot is smaller than that of the upper baffle (17) of the oil pumping tank, allowing only the oil outlet pipe (21) to pass through.

8. The explosion-proof underground oil depot according to claim 1, characterized in that, An oil pump (20) is installed inside the oil pumping tank (16). One end of the oil pump (20) is fixedly connected to the inside of the oil pumping tank (16), and the other end is fixedly connected to the oil outlet pipe (21).

Images