An oil extraction pipeline with a leak-proof structure

Abstract

This utility model discloses an oil extraction pipeline with a leak-proof structure, specifically relating to the field of oil extraction technology. It includes an oil pipe 1 and an oil pipe 2. One end of the oil pipe 1 is welded to a connecting disc 1, and the end of the oil pipe 2 facing the connecting disc 1 is welded to a connecting disc 2. A sealing assembly is provided between the connecting disc 1 and the connecting disc 2. The sealing assembly includes a sealing ring block, with an upper sealing protrusion and a lower sealing protrusion integrally formed at the top and bottom of the sealing ring block, respectively. Vacuum groove 1 and vacuum groove 2 are respectively formed on the opposite surfaces of the connecting disc 1 and the connecting disc 2, and a self-sealing structure is provided between the vacuum groove 1 and the vacuum groove 2. Mounting holes are formed around the periphery of both the connecting disc 1 and the connecting disc 2, and a through groove is formed at the center of both the connecting disc 1 and the connecting disc 2, with the through groove coaxial with the oil pipe 1. This utility model solves the technical problem of potential oil leakage in oil extraction pipelines.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction technology, and more specifically, to an oil extraction pipeline with a leak-proof structure. Background Technology

[0002] As a vital economic lifeline, oil has a tremendous impact on social development and daily life, and oil pipelines, as important infrastructure, play a crucial role in the process of oil extraction and transportation.

[0003] Currently, when adjacent oil extraction pipelines are connected, the pipeline interfaces are generally connected through flanges with gaskets. Due to the wide viscosity range and large differences in freezing point of oil, and the lack of leak-proof protection structures at the current oil extraction pipeline interfaces, the sealing effect of the single gasket is not ideal, resulting in the potential for oil leakage.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings, and provide an oil extraction pipeline with a leak-proof structure in order to achieve a more practical purpose. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can address the potential oil leakage risks in oil extraction pipelines.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oil extraction pipeline with a leak-proof structure, comprising an oil pipe one and an oil pipe two. One end of the oil pipe one is welded with a connecting disc one, and the end of the oil pipe two facing the connecting disc one is welded with a connecting disc two. A sealing assembly is provided between the connecting disc one and the connecting disc two. The sealing assembly includes a sealing ring block. The top and bottom of the sealing ring block are integrally provided with an upper sealing protrusion and a lower sealing protrusion, respectively. Vacuum groove one and vacuum groove two are respectively opened on the opposite surfaces of the connecting disc one and the connecting disc two. A self-sealing structure is provided between the vacuum groove one and the vacuum groove two.

[0007] In a preferred embodiment, mounting holes are provided around the periphery of both the first connecting plate and the second connecting plate, and a through groove is provided at the center of both the first connecting plate and the second connecting plate, with the through groove on the same axis as the first oil pipe.

[0008] In a preferred embodiment, the top of the second connecting disk is integrally provided with a conical protrusion, and the bottom of the first connecting disk is provided with an inner conical groove that engages with the conical protrusion.

[0009] In a preferred embodiment, the opposite surfaces of the connecting disc one and the connecting disc two are respectively provided with irregular groove one and irregular groove two, the sealing ring block is disposed between the irregular groove one and the irregular groove two, and the sealing ring block is located around the periphery of the conical protrusion, and the upper sealing protrusion and the lower sealing protrusion are in close contact with the inner walls of the irregular groove one and the irregular groove two, respectively.

[0010] In a preferred embodiment, the self-sealing structure includes an expanding rubber plate disposed between vacuum groove one and vacuum groove two, and the expanding rubber plate is located outside the sealing ring block. Multiple sealing grooves are provided at the top and bottom of the expanding rubber plate, and a blocking block is in close contact with each sealing groove. The multiple blocking blocks are respectively fixedly connected to the inner walls of vacuum groove one and vacuum groove two.

[0011] In a preferred embodiment, a pressure sensor and a vacuum solenoid valve are respectively provided on the top of the connecting plate 1, and the detection end of the pressure sensor and the valve end of the vacuum solenoid valve both extend into the vacuum tank 1.

[0012] In a preferred embodiment, a pair of sealing rings are embedded between the first connecting plate and the second connecting plate, the pair of sealing rings being located on the inner and outer sides of the expansion rubber plate, respectively.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This oil extraction pipeline with a leak-proof structure uses sealing components on adjacent bolted connecting discs one and two. Connecting discs one and two are fitted together via corresponding conical protrusions and inner conical grooves, increasing the tightness of the connection. The sealing components, made of a composite of fluororubber and graphene coating, possess excellent oil and corrosion resistance. Furthermore, the right-angled triangular cross-section of the sealing protrusion and the irregular groove enhance the tightness and pressure resistance of the sealing components, effectively reducing the risk of oil leakage at the connection between connecting discs one and two.

[0015] 2. This oil extraction pipeline with a leak-proof structure has a self-sealing structure on the outside of the sealing component. Utilizing the oil-absorbing and expanding properties of the expansion rubber plate, when the sealing component fails and oil leaks into the vacuum tank, the expansion rubber plate can expand and squeeze the plug installed in the vacuum tank. This reduces the gap between the expansion rubber plate and the plug, thereby avoiding oil leakage and improving the safety of oil extraction. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This is a planar sectional view of the present invention;

[0018] Figure 2 This is a planar sectional view of the connecting disk one and the connecting disk two of this utility model;

[0019] Figure 3 For the present utility model Figure 1 Enlarged view of section A in the middle;

[0020] Figure 4 This is a schematic diagram of the sealing assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the self-sealing structure of this utility model.

[0022] The attached diagram is labeled as follows: 1. Oil pipe one; 2. Oil pipe two; 3. Connecting disc one; 4. Connecting disc two; 5. Sealing ring block; 6. Upper sealing protrusion; 7. Lower sealing protrusion; 8. Vacuum groove one; 81. Vacuum groove two; 9. Expansion rubber plate; 10. Sealing groove; 11. Plug; 12. Mounting hole; 13. Conical protrusion; 14. Inner conical groove; 15. Irregular groove one; 151. Irregular groove two; 16. Pressure sensor; 17. Vacuum solenoid valve; 18. Sealing ring. Detailed Implementation

[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] See also Figures 1-5 This utility model provides an oil extraction pipeline with a leak-proof structure, including oil pipe 1 and oil pipe 2.

[0025] In this embodiment: a connecting disc 3 is welded to one end of the oil pipe 1, and a connecting disc 4 is welded to the end of the oil pipe 2 facing the connecting disc 3. Mounting holes 12 are provided around the periphery of both the connecting disc 13 and the connecting disc 24. A through groove is provided in the center of both the connecting disc 13 and the connecting disc 24, and the through groove is on the same axis as the oil pipe 1.

[0026] There are multiple mounting holes 12. The mounting holes 12 can be used to lock the connecting disc 1 3 and the connecting disc 2 4 with bolts and fasteners, which makes it easy to assemble adjacent oil pipes 1 and 2. The through groove can provide a transportation channel for oil between oil pipes 1 and 2.

[0027] In this embodiment: the top of the connecting disk 2 4 is integrally provided with a conical protrusion 13, and the bottom of the connecting disk 1 3 is provided with an inner conical groove 14 that is inserted into the conical protrusion 13.

[0028] In this application, the inner conical groove 14 is connected to the through groove. When connecting disc 1 3 and connecting disc 2 4 are mated to install oil pipe 1 and oil pipe 2, the conical protrusion 13 can extend into the inner conical groove 14. Since the size of the conical protrusion 13 is adapted to the size of the inner conical groove 14, by improving the tightness of the contact between the conical protrusion 13 and the inner conical groove 14, the gap between connecting disc 1 3 and connecting disc 2 4 near the oil pipe port can be reduced, thus reducing the risk of oil leakage.

[0029] In this embodiment, a sealing assembly is provided between connecting disc 3 and connecting disc 4. The sealing assembly includes a sealing ring block 5. The top and bottom of the sealing ring block 5 are integrally provided with an upper sealing protrusion 6 and a lower sealing protrusion 7, respectively. The sealing assembly is made of fluororubber and graphene coating.

[0030] Since the upper sealing protrusion 6 and the lower sealing protrusion 7 are integrally set on the sealing ring block 5, the entire sealing assembly is made of fluororubber and graphene coating. Because fluororubber itself has excellent oil resistance and corrosion resistance, the addition of graphene coating can further improve the resistance to oil penetration and acid and alkali attack, thus extending the service life of the sealing assembly and reducing the risk of leakage due to wear and aging.

[0031] In this embodiment: the opposite surfaces of the connecting disc 1 3 and the connecting disc 2 4 are respectively provided with irregular groove 15 and irregular groove 2 151, the sealing ring block 5 is disposed between the irregular groove 15 and the irregular groove 2 151, and the sealing ring block 5 is located around the conical protrusion 13. The upper sealing protrusion 6 and the lower sealing protrusion 7 are in close contact with the inner walls of the irregular groove 15 and the irregular groove 2 151 respectively.

[0032] In this application, the cross-sections of the upper sealing protrusion 6 and the lower sealing protrusion 7 are both set in a right-angled triangular structure, and the inclined surface of the right-angled triangle faces the direction of the oil pipe. The shape of the sealing assembly in this application is the same as that of the irregular groove 15 and the irregular groove 2151.

[0033] When the sealing components are locked into the irregular grooves 15 and 151 by the connecting discs 3 and 4, the inclined surfaces of the upper sealing protrusion 6 and the lower sealing protrusion 7 are oriented towards the oil pipe. Therefore, when leakage occurs from the inside to the outside at the connection between the connecting discs 3 and 4, the oil pressure can squeeze the inclined surfaces of the upper sealing protrusion 6 and the lower sealing protrusion 7, so that the other side of the upper sealing protrusion 6 and the lower sealing protrusion 7 is pressed against the corresponding irregular grooves 15 and 151. The upper sealing protrusion 6 and the lower sealing protrusion 7 can make close contact with the groove area that matches the shape in the corresponding irregular grooves 15 and 151. This increases the tightness between the sealing protrusion and the irregular groove, aiming to minimize the gap between the sealing component and the irregular groove, thus avoiding oil leakage problems caused by gaps.

[0034] In this embodiment: Vacuum groove 8 and vacuum groove 81 are respectively provided on the opposite surfaces of connecting plate 3 and connecting plate 4. A self-sealing structure is provided between vacuum groove 8 and vacuum groove 81. The self-sealing structure includes an expansion rubber plate 9. The expansion rubber plate 9 is provided between vacuum groove 8 and vacuum groove 81 and is located outside the sealing ring block 5. Multiple sealing grooves 10 are provided on the top and bottom of the expansion rubber plate 9. Each sealing groove 10 is in close contact with a blocking block 11. Multiple blocking blocks 11 are respectively fixedly connected to the inner walls of vacuum groove 8 and vacuum groove 81.

[0035] In this application, the end of the plugging block 11 facing the expansion rubber plate 9 is rounded, and the bottom of the sealing groove 10 is also rounded. This reduces the connection gap when the plugging block 11 abuts against the sealing groove 10. In this application, the expansion rubber plate 9 is made of oil-swellable rubber. The principle of oil-swellable rubber is mainly based on the synergistic effect of oil-absorbing resin and rubber matrix. When the expansion rubber plate 9 comes into contact with petroleum products seeping through the irregular groove, the resin quickly absorbs the oil and expands. At the same time, the rubber matrix seals and swells due to vulcanization, forming a double expansion structure inside and outside. In this way, the expansion rubber plate 9 can expand in the vacuum groove 1 8 and the vacuum groove 2 81 until it further squeezes the plugging block 11 at the sealing groove 10. This can achieve the effect of blocking oil leakage, ensure the effectiveness of the leak prevention measures, and effectively solve the technical problem of oil leakage hazards in current oil extraction pipelines.

[0036] In this embodiment: a pressure sensor 16 and a vacuum solenoid valve 17 are respectively provided on the top of the connecting plate 3. The detection end of the pressure sensor 16 and the valve end of the vacuum solenoid valve 17 both extend into the vacuum tank 8.

[0037] Vacuum treatment is required in vacuum tank 8 and vacuum tank 81. This vacuum treatment reduces the oxygen content within the vacuum tanks, ensuring the dryness of the expanded rubber sheet 9. Vacuum treatment in vacuum tanks 8 and 81 is achieved through a vacuum solenoid valve 17 in conjunction with an external vacuum pump. The pressure sensor 16 is an absolute pressure sensor (model MSP300-100KA). Both the vacuum solenoid valve 17 and the pressure sensor 16 are readily available electrical components. The pressure sensor 16 detects the pressure within the vacuum tanks. When the self-sealing structure expands and seals upon contact with oil, the pressure within the vacuum tanks changes. The pressure sensor 16 provides an emergency signal for the self-sealing structure based on this pressure change. The pressure sensor 16 can be connected to a terminal signal using existing communication technology. This terminal can be a computer for the oil extraction pipeline system, facilitating maintenance reminders for oil extraction pipeline maintenance.

[0038] In this embodiment, a pair of sealing rings 18 are embedded between connecting disc 3 and connecting disc 4, and the pair of sealing rings 18 are located on the inner and outer sides of the expansion rubber plate 9, respectively.

[0039] In this application, the end face of the sealing ring 18 is a circular rubber sealing ring, and the opposite faces of the connecting disc 1 3 and the connecting disc 2 4 are provided with sealing grooves that fit the sealing ring 18. In this application, the purpose of setting a pair of sealing rings 18 on the inner and outer sides of the expansion rubber plate 9 is to seal the vacuum groove, so as to prevent air from entering the vacuum groove and affecting the reliability of the self-sealing structure.

Claims

1. An oil extraction pipeline with a leak-proof structure, comprising a first oil pipe (1) and a second oil pipe (2), characterized in that: One end of the first oil pipe (1) is welded with a connecting disc (3), and the end of the second oil pipe (2) facing the connecting disc (3) is welded with a connecting disc (4). A sealing assembly is provided between the connecting disc (3) and the connecting disc (4). The sealing assembly includes a sealing ring block (5). The top and bottom of the sealing ring block (5) are integrally provided with an upper sealing protrusion (6) and a lower sealing protrusion (7). Vacuum groove 1 (8) and vacuum groove 2 (81) are respectively provided on the opposite surfaces of the connecting plate 1 (3) and the connecting plate 2 (4), and a self-sealing structure is provided between the vacuum groove 1 (8) and the vacuum groove 2 (81).

2. The oil extraction pipeline with a leak-proof structure according to claim 1, characterized in that: The peripherals of the first connecting plate (3) and the second connecting plate (4) are provided with mounting holes (12), and the center of the first connecting plate (3) and the second connecting plate (4) is provided with a through groove, which is on the same axis as the first oil pipe (1).

3. An oil extraction pipeline with a leak-proof structure according to claim 1, characterized in that: The top of the second connecting plate (4) is integrally provided with a conical protrusion (13), and the bottom of the first connecting plate (3) is provided with an inner conical groove (14) that is fitted to the conical protrusion (13).

4. An oil extraction pipeline with a leak-proof structure according to claim 3, characterized in that: The opposite surfaces of the connecting disc one (3) and the connecting disc two (4) are respectively provided with irregular groove one (15) and irregular groove two (151). The sealing ring block (5) is disposed between the irregular groove one (15) and the irregular groove two (151), and the sealing ring block (5) is located around the conical protrusion (13). The upper sealing protrusion (6) and the lower sealing protrusion (7) are in close contact with the inner walls of the irregular groove one (15) and the irregular groove two (151), respectively.

5. An oil extraction pipeline with a leak-proof structure according to claim 1, characterized in that: The self-sealing structure includes an expansion rubber plate (9), which is disposed between vacuum groove one (8) and vacuum groove two (81) and is located outside the sealing ring block (5). Multiple sealing grooves (10) are provided at the top and bottom of the expansion rubber plate (9), and a plug block (11) is in close contact with each sealing groove (10). The multiple plug blocks (11) are fixedly connected to the inner walls of vacuum groove one (8) and vacuum groove two (81) respectively.

6. An oil extraction pipeline with a leak-proof structure according to claim 1, characterized in that: A pressure sensor (16) and a vacuum solenoid valve (17) are respectively provided on the top of the connecting plate (3). The detection end of the pressure sensor (16) and the valve end of the vacuum solenoid valve (17) both extend into the vacuum tank (8).

7. An oil extraction pipeline with a leak-proof structure according to claim 5, characterized in that: A pair of sealing rings (18) are embedded between the first connecting plate (3) and the second connecting plate (4), and the pair of sealing rings (18) are located on the inner and outer sides of the expansion rubber plate (9), respectively.

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