X-type oil way device and mounting structure thereof

Abstract

The invention discloses an X-type path oil device and a mounting structure thereof. The X-type path oil device comprises a multi-head oil outlet seat and a multi-head oil outlet head, the multi-head oil outlet seat comprises a first shell and more than one first inner pipe; a mounting structure is arranged on the outer side of the first shell; one end of each first inner pipe is positioned on the inner side of the first shell, and the other end penetrates through the side wall of the first shell to form a first inlet; a second inlet is formed in the first shell; the multi-head oil outlet head comprises a second shell and more than one second inner pipe; one end of each second inner pipe is positioned inside the second shell, and the other end penetrates out of the side wall of the second shell to form a first outlet; a second outlet is formed in the second shell; the first shell and the second shell are rotatably connected together to form a through independent oil outlet passage; the number of the first inner pipes is equal to that of the second inner pipes, the first inner pipes and the second inner pipes are in one-to-one correspondence, and the first inner pipes and the corresponding second inner pipes are rotatably connected together to form through independent oil outlet channels. The device can resist sea wind wave impact.

Description

Technical Field

[0001] The invention relates to an X-type oil circuit device and a mounting structure thereof, belonging to the technical field of oil production on a drilling platform. Background Art

[0002] As humans develop and utilize oil and gas resources, oil and gas exploration and development have shifted from land to the ocean. Therefore, drilling operations must also be carried out in the vast ocean. When drilling oil and gas wells at sea, the drilling rig weighing hundreds of tons must have enough support and placement space, and there must also be a place for the drilling personnel to live. The offshore oil drilling platform takes on this important task.

[0003] During the process of oil delivery and loading on offshore drilling platforms, there will be problems such as shaking and oil leakage due to the influence of wind and waves at sea, which may cause serious accidents. Therefore, the inventor has developed an X-type oil pipe and its installation structure, which can effectively solve the instability problem caused by the offshore climate during the process of oil delivery and loading on offshore drilling platforms. Summary of the invention

[0004] The invention provides an X-type oil pipe and a mounting structure thereof, which can improve the stability and safety of oil output and oil loading of an offshore drilling platform, can effectively resist the impact of offshore wind and waves, and improve the oil loading efficiency.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0006] An X-type oiler comprises a multi-head oil outlet seat and a multi-head oil outlet head;

[0007] The multi-head oil outlet seat comprises a first outer shell and more than one first inner tube;

[0008] A mounting structure is provided on the outside of the first shell; one end of each first inner tube is located on the inside of the first shell, and the other end passes through the side wall of the first shell to form a first inlet; a gap is left between the first inner tube in the first shell and the first shell, but the intersection of the first inner tube and the first shell is a sealed structure; a second inlet is provided on the side wall of the first shell, and the first inlet and the second inlet are evenly distributed along the circumference of the first shell;

[0009] The multi-head oil outlet head includes a second outer shell and one or more second inner tubes;

[0010] One end of each second inner tube is located inside the second outer shell, and the other end passes through the side wall of the second outer shell to form a first outlet; a gap is left between the second inner tube in the second outer shell and the second outer shell, but the intersection of the second inner tube and the second outer shell is a sealed structure; a second outlet is provided on the side wall of the second outer shell, and the first outlet and the second outlet are evenly distributed along the circumference of the second outer shell;

[0011] The top of the first outer shell and the bottom of the second outer shell are rotatably connected together to form an independent oil outlet passage from the second inlet to the second outlet; the number of first inner tubes and second inner tubes is equal and one-to-one corresponding, and the top of the first inner tube and the bottom of the corresponding second inner tube are rotatably connected together to form an independent oil outlet passage from the corresponding first inlet to the first outlet.

[0012] Each corresponding first inner tube and second inner tube are rotatably connected together to form an independent oil outlet passage.

[0013] The corresponding first inlet to first outlet mentioned above refers to the corresponding first inlet to first outlet on the first inner tube and the second inner tube.

[0014] The present invention is provided with multiple inlets and multiple outlets, and has multiple independent oil outlet passages, and the multiple oil outlet heads can rotate freely, which can effectively balance and buffer the shaking of the oil loading ship when there are wind and waves, resist the impact of wind and waves at sea, and improve the oil loading efficiency at the same time.

[0015] In order to facilitate maintenance and collection of leaked oil, the above-mentioned X-type oil pipe also includes a leaked oil collection box, a total oil collection box, a first oil return pipe and a second oil return pipe;

[0016] The leaked oil collection box is arranged at the bottom of the connection between the first shell and the second shell, and is used to collect the leaked oil at the connection;

[0017] One end of the first oil return pipe is connected to the top of the total oil collection tank, and the other end is branched into the first oil return branch pipe A and the first oil return branch pipe B. The first oil return branch pipe A is connected to the bottom of the leaking oil collection tank, and the first oil return branch pipe B is connected to the bottom of the first shell. An oil pump can be installed on the first oil return branch pipe A as needed. When the first oil return branch pipe A is set from top to bottom, the oil pump may not be installed. Under the action of gravity, the oil in the leaking oil collection tank will automatically flow into the total oil collection tank. However, due to site restrictions, when it cannot be set from top to bottom, an oil pump needs to be installed. The first oil return branch pipe B is provided with an oil pump;

[0018] An oil return port is provided on the top of the second housing; one end of the second oil return pipe is connected to the bottom of the main oil collecting tank, and the other end is connected to the oil return port, and an oil pump is provided on the second oil return pipe;

[0019] When leakage occurs at the connection between the first shell and the second shell, the leaked oil falls into the oil leakage collection tank and enters the main oil collection tank through the first oil return branch pipe A; when the first oil return branch pipe A is not arranged from top to bottom, an oil pump needs to be arranged on the first oil return branch pipe A, and when the oil in the oil leakage collection tank needs to be transported to the main oil collection tank, the oil pump on the first oil return branch pipe A needs to be started;

[0020] When maintenance is required, the oil pump on the first oil return branch pipe B is started to transfer the oil in the first housing and the second housing to the main oil tank;

[0021] When the oil is flowing out normally, start the oil pump on the second oil return pipe to transport the oil in the main oil tank to the oil return port.

[0022] The oil pump can be a manual oil pump.

[0023] Instruments and power pumps can be installed on each pipeline according to site conditions.

[0024] For ease of use, the above-mentioned X-type oil circuit device also includes an oil drain pipe, which is connected to the second oil return pipe and is provided with a valve and an oil pump; when the oil in the total oil tank needs to be transported to other equipment, the oil drain pipe is connected to the other equipment, the valve and the oil pump are opened, and the oil in the total oil tank enters the other equipment.

[0025] In order to improve the stability of use, when the number of the first inner tubes and the second inner tubes is two or more, the first inner tubes located in the first outer shell are evenly distributed in the first outer shell, and the second inner tubes located in the second outer shell are evenly distributed in the second outer shell.

[0026] In order to further improve stability, the first inlet and the second inlet have the same shape, equal size, and are arranged at the same height; the first outlet and the second outlet have the same shape, equal size, and are arranged at the same height.

[0027] In order to meet general oil production needs, as one of the specific implementation schemes, the number of the first inner tube is one, a second inlet is provided on the side wall of the first outer shell, and the first inlet and the second inlet are symmetrically arranged; the number of the second inner tube is one, a second outlet is provided on the side wall of the second outer shell, and the first outlet and the second outlet are symmetrically arranged.

[0028] In order to further improve the stability of the device in use, the top of the first inner tube is coaxially arranged with the first outer shell; the bottom of the second inner tube is coaxially arranged with the second outer shell, and the first outer shell is coaxially arranged with the second outer shell; the first inlet and the first outlet are respectively located on both sides of the first outer shell and the second outer shell, and the second inlet and the second outlet are respectively located on both sides of the first outer shell and the second outer shell, forming an X-shaped oil outlet passage.

[0029] In order to facilitate use and installation, the first inlet and the second inlet are both opened downward, and the first inlet end and the second inlet end are flush with the horizontal plane.

[0030] In order to facilitate the oil filling connection, the first outlet and the second outlet are both opened toward the side, and the first outlet end and the second outlet end are flush with the vertical surface.

[0031] As another implementation scheme, both the first outlet and the second outlet are opened upward, and the first outlet end and the second outlet end are flush with the horizontal plane.

[0032] In order to facilitate assembly while ensuring the stability and safety of the device and to facilitate adjustment, the top of the first inner tube is flush with the top of the first outer shell; the bottom of the second inner tube is flush with the bottom of the second outer shell; the mounting structure on the outside of the first outer shell is a mounting flange; the top of the first outer shell and the bottom of the second outer shell, and the top of the first inner tube and the corresponding bottom of the second inner tube are respectively connected by bearings, and the bearings are tapered roller self-aligning bearings (spherical roller bearings); self-tightening seals are provided between the top of the first outer shell and the bottom of the second outer shell, and between the top of the first inner tube and the corresponding bottom of the second inner tube, to improve sealing and reliability and reduce leakage.

[0033] The mounting structure of the X-type oiler is installed on the platform through the mounting structure on the outside of the first shell. The first inlet and the second inlet are both below the platform and are connected to the oil outlet pipes respectively; the first outlet and the second outlet are above the platform and are connected to the oil inlet pipes of the oil filling device through hoses respectively.

[0034] The technologies not mentioned in the present invention are all referred to the prior art.

[0035] The X-type oil pipe of the present invention is used as an interface between the oil output and oil loading of a drilling platform. The present invention is provided with multiple inlets and multiple outlets, and the multiple oil outlet heads can rotate freely. When there are wind and waves, it can effectively balance and buffer the shaking of the oil loading ship, resist the impact of wind and waves at sea, and at the same time improve the oil loading efficiency; it is stable and reliable; further, in case of leakage, the leaked oil can be effectively collected, and during maintenance, the oil in the outer casing can be conveniently discharged, and the loss is reduced or avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the X-type oil circuit device of the present invention;

[0037] In the figure, 1 is a multi-head oil outlet seat, 11 is a first inner tube, 111 is a first inlet, 12 is a first outer shell, 121 is a second inlet, 2 is a multi-head oil outlet, 21 is a second inner tube, 211 is a first outlet, 22 is a second outer shell, 221 is a second outlet, 222 is an oil return port, 3 is an oil leakage collection box, 4 is a total oil collection box, 5 is a first oil return pipe, 6 is a second oil return pipe, 7 is a tapered roller spherical bearing, 8 is a self-tightening seal, 9 is a platform, 10 is a manual oil pump, and 11 is an oil drain pipe. DETAILED DESCRIPTION

[0038] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with the embodiments, but the content of the present invention is not limited to the following embodiments.

[0039] In this application, directional words such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings or in use, and are only for the convenience of describing the application, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the application.

[0040] Example 1

[0041] like Figure 1 As shown, an X-type oiler includes a multi-head oil outlet seat and a multi-head oil outlet head;

[0042] The multi-head oil outlet seat comprises a first outer shell and more than one first inner tube;

[0043] A mounting structure is provided on the outside of the first shell; one end of each first inner tube is located on the inside of the first shell, and the other end passes through the side wall of the first shell to form a first inlet; a gap is left between the first inner tube in the first shell and the first shell, but the intersection of the first inner tube and the first shell is a sealed structure; a second inlet is provided on the side wall of the first shell, and the first inlet and the second inlet are evenly distributed along the circumference of the first shell;

[0044] The multi-head oil outlet head includes a second outer shell and one or more second inner tubes;

[0045] One end of each second inner tube is located inside the second outer shell, and the other end passes through the side wall of the second outer shell to form a first outlet; a gap is left between the second inner tube in the second outer shell and the second outer shell, but the intersection of the second inner tube and the second outer shell is a sealed structure; a second outlet is provided on the side wall of the second outer shell, and the first outlet and the second outlet are evenly distributed along the circumference of the second outer shell;

[0046] The top of the first outer shell and the bottom of the second outer shell are rotatably connected together to form an independent oil outlet passage from the second inlet to the second outlet; the number of first inner tubes and second inner tubes is equal and one-to-one corresponding, and the top of the first inner tube and the bottom of the corresponding second inner tube are rotatably connected together to form an independent oil outlet passage from the corresponding first inlet to the first outlet.

[0047] The above-mentioned multiple inlets and multiple outlets are provided with multiple independent oil outlet passages, and the multiple oil outlet heads can rotate freely. When there are wind and waves, they can effectively balance and buffer the shaking of the oil loading ship, resist the impact of wind and waves at sea, and at the same time improve the oil loading efficiency.

[0048] Example 2

[0049] On the basis of Example 1, the following improvements are further made: in order to facilitate maintenance and collection of leaked oil, the X-type oil pipe further includes a leaked oil collection box, a main oil collection box, a first oil return pipe and a second oil return pipe;

[0050] The leaked oil collection box is arranged at the bottom of the connection between the first shell and the second shell, and is used to collect the leaked oil at the connection;

[0051] One end of the first oil return pipe is connected to the top of the total oil collection tank, and the other end is branched into the first oil return branch pipe A and the first oil return branch pipe B. The first oil return branch pipe A is connected to the bottom of the leaking oil collection tank, and the first oil return branch pipe B is connected to the bottom of the first shell. An oil pump can be installed on the first oil return branch pipe A as needed. When the first oil return branch pipe A is set from top to bottom, the oil pump may not be installed. Under the action of gravity, the oil in the leaking oil collection tank will automatically flow into the total oil collection tank. However, due to site restrictions, when it cannot be set from top to bottom, an oil pump needs to be installed. The first oil return branch pipe B is provided with an oil pump;

[0052] An oil return port is provided on the top of the second housing; one end of the second oil return pipe is connected to the bottom of the main oil collecting tank, and the other end is connected to the oil return port, and a manual oil pump is provided on the second oil return pipe;

[0053] When leakage occurs at the connection between the first shell and the second shell, the leaked oil falls into the oil leakage collection tank and enters the main oil collection tank through the first oil return branch pipe A; when the first oil return branch pipe A is not set from top to bottom, it is necessary to set an oil pump on the first oil return branch pipe A, and when the oil in the oil leakage collection tank needs to be transported to the main oil collection tank, it is necessary to start the oil pump on the first oil return branch pipe A; when maintenance is required, start the oil pump on the first oil return branch pipe B to transport the oil in the first shell and the second shell to the main oil collection tank; when the oil is discharged normally, start the manual oil pump on the second oil return pipe to transport the oil in the main oil collection tank to the return oil port.

[0054] Example 3

[0055] On the basis of Example 2, the following improvements are further made: for the convenience of use, the above-mentioned X-type oil circuit device also includes an oil drain pipe, which is connected to the second oil return pipe, and a valve and an oil pump are provided on the oil drain pipe; when the oil in the main oil tank needs to be transported to other equipment, the oil drain pipe is connected to the other equipment, the valve and the oil pump are opened, and the oil in the main oil tank enters the other equipment.

[0056] Example 4

[0057] On the basis of Example 3, the following improvements are further made: in order to improve the stability of use, when the number of the first inner tube and the second inner tube is more than two, the first inner tube located in the first outer shell is evenly distributed in the first outer shell, and the second inner tube located in the second outer shell is evenly distributed in the second outer shell. In order to further improve the stability, the first inlet and the second inlet have the same shape, equal size, and are set at the same height; the first outlet and the second outlet have the same shape, equal size, and are set at the same height.

[0058] Example 5

[0059] On the basis of Example 3, the following improvements were made: Figure 1 As shown, the number of the first inner tube is one, a second inlet is provided on the side wall of the first outer shell, the first inlet and the second inlet have the same shape, equal size, and are symmetrically arranged, the first inlet and the second inlet are both opened downward, and the first inlet end and the second inlet end are flush with the horizontal plane; the number of the second inner tube is one, a second outlet is provided on the side wall of the second outer shell, the first outlet and the second outlet have the same shape, equal size, and are symmetrically arranged, the first outlet and the second outlet are both opened toward the side (the first outlet faces the right side, and the second outlet faces the left side), and the first outlet end and the second outlet end are flush with the vertical plane.

[0060] like Figure 1 As shown, in order to further improve the stability of the device in use, the top of the first inner tube is coaxially arranged with the first outer shell; the bottom of the second inner tube is coaxially arranged with the second outer shell, and the first outer shell is coaxially arranged with the second outer shell; the first inlet and the first outlet are respectively located on both sides of the first outer shell and the second outer shell, and the second inlet and the second outlet are respectively located on both sides of the first outer shell and the second outer shell, forming an X-shaped oil outlet passage.

[0061] like Figure 1 As shown, in order to facilitate assembly while ensuring the stability and safety of the device and to facilitate adjustment, the top of the first inner tube is flush with the top of the first outer shell; the bottom of the second inner tube is flush with the bottom of the second outer shell; the mounting structure on the outside of the first outer shell is a mounting flange; the top of the first outer shell and the bottom of the second outer shell, and the top of the first inner tube and the corresponding bottom of the second inner tube are respectively connected by bearings, and the bearings are tapered roller self-aligning bearings (spherical roller bearings); self-tightening seals are provided between the top of the first outer shell and the bottom of the second outer shell, and between the top of the first inner tube and the corresponding bottom of the second inner tube, to improve sealing and reliability and reduce leakage.

[0062] The mounting structure of the X-type oiler is installed on the platform through the mounting structure on the outside of the first shell. The first inlet and the second inlet are both below the platform and are connected to the oil outlet pipes respectively; the first outlet and the second outlet are above the platform and are connected to the oil inlet pipes of the oil filling device through hoses respectively.

[0063] The oil production method using the above-mentioned X-type oiler: the oil in the oil outlet pipe is transported to the oil inlet pipe of the oil loading device through two independent oil outlet passages respectively. When there are wind and waves, the structure of the X-shaped oil outlet passage and the rotation of the X-shaped oil outlet passage with the wind can effectively balance and buffer the shaking of the oil loading ship, resist the impact of wind and waves at sea, and at the same time improve the oil loading efficiency, stability and reliability; once a leak occurs at the connection between the first shell and the second shell, the leaked oil falls into the leaking oil collection box and enters the main oil collection tank through the first return oil branch pipe A; when maintenance is performed, the oil pump on the first return oil branch pipe B is started to transport the oil in the first shell and the second shell to the main oil collection tank; when the oil is discharged normally, the manual oil pump on the second return oil pipe is started to transport the oil in the main oil collection tank to the return oil port.

Claims

1. An X-type oiler, characterized in that: It comprises a multi-head oil outlet seat (1) and a multi-head oil outlet head (2); The multi-head oil outlet seat (1) comprises a first outer shell (12) and one or more first inner tubes (11); A mounting structure is provided on the outside of the first outer shell (12); one end of each first inner tube (11) is located on the inside of the first outer shell (12), and the other end passes through the side wall of the first outer shell (12) to form a first inlet (111); a gap is left between the first inner tube (11) in the first outer shell (12) and the first outer shell (12), and the intersection of the first inner tube (11) and the first outer shell (12) is a sealing structure; a second inlet (121) is provided on the side wall of the first outer shell (12), and the first inlet (111) and the second inlet (121) are evenly distributed along the circumference of the first outer shell (12); The multi-head oil outlet head (2) comprises a second outer shell (22) and one or more second inner tubes (21); One end of each second inner tube (21) is located inside the second outer shell (22), and the other end passes through the side wall of the second outer shell (22) to form a first outlet (211); a gap is left between the second inner tube (21) in the second outer shell (22) and the second outer shell (22), and the intersection of the second inner tube (21) and the second outer shell (22) is a sealed structure; a second outlet (221) is provided on the side wall of the second outer shell (22), and the first outlet (211) and the second outlet (221) are evenly distributed along the circumference of the second outer shell (22); The top of the first outer shell (12) and the bottom of the second outer shell (22) are rotatably connected together to form an independent oil outlet passage running from the second inlet (121) to the second outlet (221); the number of the first inner tubes (11) and the second inner tubes (21) are equal and one-to-one corresponding, and the top of the first inner tube (11) and the bottom of the corresponding second inner tube (21) are rotatably connected together to form an independent oil outlet passage running from the corresponding first inlet (111) to the first outlet (211).

2. The X-type oil pipe according to claim 1, characterized in that: It also includes a leaked oil collection tank (3), a main oil collection tank (4), a first oil return pipe (5) and a second oil return pipe (6); The leaked oil collection box (3) is arranged at the bottom of the connection between the first shell (12) and the second shell (22) and is used to collect the leaked oil at the connection; One end of the first oil return pipe (5) is connected to the top of the main oil collection tank (4), and the other end is branched into a first oil return branch pipe A and a first oil return branch pipe B. The first oil return branch pipe A is connected to the bottom of the leaking oil collection tank (3), and the first oil return branch pipe B is connected to the bottom of the first housing (12). An oil pump is provided on the first oil return branch pipe B. An oil return port (222) is provided at the top of the second housing (22); one end of the second oil return pipe (6) is connected to the bottom of the main oil collecting tank (4), and the other end is connected to the oil return port (222); an oil pump is provided on the second oil return pipe (6); When leakage occurs at the connection between the first housing (12) and the second housing (22), the leaked oil falls into the oil leakage collection tank (3) and enters the main oil collection tank (4) through the first oil return branch pipe A; When maintenance is required, the oil pump on the first oil return branch pipe B is started to transport the oil in the first housing (12) and the second housing (22) to the main oil collecting tank (4); When the oil is discharged normally, the oil pump on the second oil return pipe (6) is started to transport the oil in the main oil collecting tank (4) to the oil return port (222).

3. The X-type oil pipe according to claim 2, characterized in that: It also includes an oil drain pipe (11), which is communicated with the second oil return pipe (6), and a valve and an oil pump are provided on the oil drain pipe (11).

4. The X-type oil pipe according to any one of claims 1 to 3, characterized in that: When the number of the first inner tubes (11) and the second inner tubes (21) is two or more, the first inner tubes (11) located in the first outer shell (12) are evenly distributed in the first outer shell (12), and the second inner tubes (21) located in the second outer shell (22) are evenly distributed in the second outer shell (22).

5. The X-type oil pipe according to any one of claims 1 to 3, characterized in that: The first inlet (111) and the second inlet (121) have the same shape, are equal in size, and are arranged at the same height; the first outlet (211) and the second outlet (221) have the same shape, are equal in size, and are arranged at the same height.

6. The X-type oil pipe according to any one of claims 1 to 3, characterized in that: The number of the first inner tube (11) is one, a second inlet (121) is provided on the side wall of the first outer shell (12), and the first inlet (111) and the second inlet (121) are symmetrically arranged; the number of the second inner tube (21) is one, a second outlet (221) is provided on the side wall of the second outer shell (22), and the first outlet (211) and the second outlet (221) are symmetrically arranged.

7. The X-type oil pipe according to claim 6, characterized in that: The top of the first inner tube (11) is coaxially arranged with the first outer shell (12); the bottom of the second inner tube (21) is coaxially arranged with the second outer shell (22); the first outer shell (12) and the second outer shell (22) are coaxially arranged; the first inlet (111) and the first outlet (211) are respectively located on both sides of the first outer shell (12) and the second outer shell (22); the second inlet (121) and the second outlet (221) are respectively located on both sides of the first outer shell (12) and the second outer shell (22), forming an X-shaped oil outlet passage.

8. The X-type oil pipe according to any one of claims 1 to 3, characterized in that: The first inlet (111) and the second inlet (121) are both opened downward, and the ends of the first inlet (111) and the second inlet (121) are flush with the horizontal plane; the first outlet (211) and the second outlet (221) are both opened toward the side, and the ends of the first outlet (211) and the second outlet (221) are flush with the vertical plane; or, the first outlet (211) and the second outlet (221) are both opened upward, and the ends of the first outlet (211) and the second outlet (221) are flush with the horizontal plane.

9. The X-type oil pipe according to any one of claims 1 to 3, characterized in that: The top of the first inner tube (11) is flush with the top of the first outer shell (12); the bottom of the second inner tube (21) is flush with the bottom of the second outer shell (22); the mounting structure on the outside of the first outer shell (12) is a mounting flange; the top of the first outer shell (12) and the bottom of the second outer shell (22), and the top of the first inner tube (11) and the corresponding bottom of the second inner tube (21) are respectively connected through bearings, and the bearings are tapered roller self-aligning shaft (7) bearings; and a self-tightening seal (8) is provided between the top of the first outer shell (12) and the bottom of the second outer shell (22), and between the top of the first inner tube (11) and the corresponding bottom of the second inner tube (21).

10. An installation structure of an X-type oil pipe according to any one of claims 1 to 9, characterized in that: The first inlet (111) and the second inlet (121) are both below the platform and are respectively connected to the oil outlet pipes; the first outlet (211) and the second outlet (221) are above the platform and are respectively connected to the oil inlet pipes of the oil filling device through hoses.

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