Connecting structure of petroleum drilling and production petroleum pipeline

Abstract

The utility model provides a connecting structure of a petroleum drilling and production petroleum pipeline, which belongs to the technical field of petroleum pipelines and comprises a box cover, a box body, a connecting plate A, a connecting plate B, a miniature air pump pressure sensor and a control panel. According to the utility model, the box cover is fixed on the outer surface of the connecting cylinder through the connecting plate A, then the connecting plate B is aligned with the connecting plate A, and the box body is in threaded connection with the box cover through the bolt, so that closed detection control can be formed; the miniature air pump is started to enable air to enter the cavity of the pipeline joint, meanwhile, the pressure sensor is used for monitoring the pressure change in the cavity in real time, therefore, once leakage exists, the pressure changes accordingly, and then effective detection of the sealing performance of the joint is achieved by comparing parameters preset on the control panel with monitoring data.

Description

Technical Field

[0001] This utility model relates to the field of oil pipeline technology, and in particular to a connection structure for an oil drilling and production pipeline. Background Technology

[0002] Oil drilling and extraction refers to a series of operations to extract oil from the ground. The extracted oil needs to be transported through pipelines to gathering stations, processing plants and other subsequent stages for processing. Therefore, highly sealed pipeline connections are essential to ensure the safety of oil transportation.

[0003] Chinese Patent Publication (Announcement) No. CN217683736U discloses a high-sealing pipeline connection structure for oil drilling and production. It includes a high-sealing second pipeline rod disposed below a high-sealing first pipeline rod, and the high-sealing second pipeline rod and the high-sealing first pipeline rod are a group. The outer wall of one end of both the high-sealing first pipeline rod and the high-sealing second pipeline rod are provided with a reserved installation groove, and the reserved installation groove is integrally formed with one end of the high-sealing first pipeline rod and the high-sealing second pipeline rod. The interior of both the high-sealing first pipeline rod and the high-sealing second pipeline rod is provided with an inner conveying cavity.

[0004] However, with the increase of usage time, rubber strips and other seals are subject to long-term high pressure, chemical corrosion and temperature changes, which can easily lead to aging and wear, thus reducing sealing performance. The existing connection structure lacks timely detection methods, resulting in the long-term existence of potential oil leakage hazards. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the sealing condition of oil pipeline connections cannot be detected in a timely manner in the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a connection structure for an oil drilling and production pipeline, including: a first pipeline and a second pipeline, and a connecting cylinder disposed between the first pipeline and the second pipeline. Both ends of the connecting cylinder are provided with connecting components for fixing the connection, and the outer surface of the connecting cylinder is provided with a detection component for detecting the sealing performance.

[0007] The detection assembly includes a connecting plate A disposed on the outer surface of the connecting cylinder, and a cover disposed on the upper surface of the connecting plate A. The bottom of the cover is connected to a box body by bolts. A connecting plate B is disposed inside the box body. The bottom of the connecting plate A and the upper surface of the connecting plate B are fitted into the outer surface of the connecting cylinder. A mounting plate is fitted into the bottom of the box body. A miniature air pump is disposed on the upper surface of the mounting plate. A three-way pipe is disposed at one end of the miniature air pump. One end of the three-way pipe passes through the interior of the connecting plate B. The other end of the miniature air pump is connected to the outside. A pressure sensor is disposed on the inner wall of the cover. A control panel is disposed on the upper surface of the cover. The pressure sensor is connected to the control panel for signal transmission.

[0008] Furthermore, a gas concentration sensor and a temperature sensor are installed on the inner wall of the lid, and both the gas concentration sensor and the temperature sensor are connected to the control panel for signal transmission.

[0009] Furthermore, an audible and visual signal light is installed on the upper surface of the box cover, and the audible and visual signal light is connected to the control panel signal.

[0010] Furthermore, a T-shaped sealing gasket is provided on the upper surface of the box, and a groove is provided at the bottom of the box lid, with the upper surface of the T-shaped sealing gasket fitting into the interior of the groove.

[0011] Furthermore, the connecting assembly includes an arc-shaped locking block A sleeved on the outer surface of the connecting cylinder, and an arc-shaped locking block B hinged to the upper surface of the arc-shaped locking block A, wherein the arc-shaped locking block A and the arc-shaped locking block B are connected by bolt threads.

[0012] Furthermore, sealing rings are provided on the inner walls of arc-shaped card block A and arc-shaped card block B.

[0013] Furthermore, the outer surfaces of the lid and body are provided with a protective coating, which is a component made of silane coating.

[0014] Compared with the prior art, the beneficial effects of this utility model include: a box cover, a box body, a connecting plate A, a connecting plate B, a micro air pump pressure sensor, and a control panel. The box cover is fixed to the outer surface of the connecting cylinder via the connecting plate A, and then the connecting plate B is aligned with the connecting plate A. The box body and the box cover are connected by bolts and threads, thus forming a sealed detection and control system. Furthermore, because a mounting plate is fitted into the bottom of the box body, and a micro air pump is installed on the upper surface of the mounting plate, starting the micro air pump introduces gas into the cavity at the pipe connection. At the same time, the pressure sensor monitors the pressure changes in the cavity in real time. Therefore, once a leak occurs, the pressure will change accordingly. Then, by comparing the parameters preset on the control panel with the monitoring data, the sealing performance of the connection can be effectively detected. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1 The schematic diagram shows the overall structure of the connection structure of an oil drilling and production pipeline according to one embodiment of the present invention.

[0017] Figure 2 The schematic diagram shows a pipeline connection diagram of the connection structure of an oil drilling and production pipeline according to one embodiment of the present invention.

[0018] Figure 3 The schematic diagram shows the internal structure of the cover of the connection structure of an oil drilling and production pipeline according to one embodiment of the present invention.

[0019] Figure 4 The schematic diagram shows the internal structure of the housing of the oil drilling and production pipeline connection structure according to one embodiment of the present invention.

[0020] Figure 5 The diagram schematically shows a partial internal structure of the housing of a connection structure for an oil drilling and production pipeline according to one embodiment of the present invention.

[0021] Numbered in the diagram: 1. First pipe; 2. Second pipe; 3. Connecting cylinder; 4. Connecting assembly; 41. Arc-shaped locking block A; 42. Arc-shaped locking block B; 43. Sealing ring; 5. Detection assembly; 51. Connecting plate A; 52. Box cover; 53. Box body; 54. Connecting plate B; 55. Mounting plate; 56. Miniature air pump; 561. T-shaped pipe; 57. Pressure sensor; 58. Control panel; 581. Gas concentration sensor; 582. Temperature sensor; 59. Audible and visual signal light; 6. T-shaped sealing gasket; 61. Groove. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] According to one embodiment of the present invention, in conjunction with Figure 1 As shown.

[0024] A connection structure for an oil drilling and production pipeline includes: a first pipeline 1 and a second pipeline 2, and a connecting cylinder 3 disposed between the first pipeline 1 and the second pipeline 2. Both ends of the connecting cylinder 3 are provided with connecting components 4 for fixing the connection points, and the outer surface of the connecting cylinder 3 is provided with a detection component 5 for detecting the sealing performance.

[0025] In this embodiment, please refer to Figures 1-5 The detection component 5 includes a connecting plate A51 disposed on the outer surface of the connecting cylinder 3, and a cover 52 disposed on the upper surface of the connecting plate A51. The bottom of the cover 52 is connected to a box body 53 by bolts. A connecting plate B54 is disposed inside the box body 53. The bottom of the connecting plate A51 and the upper surface of the connecting plate B54 are fitted into the outer surface of the connecting cylinder 3. A mounting plate 55 is fitted into the bottom of the box body 53. A miniature air pump 56 is disposed on the upper surface of the mounting plate 55. A three-way pipe 561 is disposed at one end of the miniature air pump 56. One end of the three-way pipe 561 passes through the interior of the connecting plate B54, and the other end of the miniature air pump 56 is connected to the outside. The inner wall of the cover 52 is equipped with a pressure sensor 57, and the upper surface of the cover 52 is equipped with a control panel 58. The pressure sensor 57 is connected to the control panel 58. Since the cover 52 is fixed to the outer surface of the connecting cylinder 3 by the connecting plate A51, and then aligned with the connecting plate A51 by the connecting plate B54, and connected to the cover 52 by bolts and threads, a sealed detection and control system can be formed. Furthermore, since the bottom of the box body 53 is fitted with a mounting plate 55, and a miniature air pump 56 is installed on the upper surface of the mounting plate 55, with a three-way pipe 561 at one end passing through the interior of the connecting plate B54, it can be used to... Figure 4 and Figure 5 As can be seen, the cavity into which the gas enters is wrapped around the pipe connection. At this time, the micro air pump 56 is started to fill the cavity with gas. At the same time, the pressure sensor 57 monitors the pressure change in the cavity in real time. Therefore, if the pipe connection is well sealed, the pressure will remain at a stable value after inflation. Once there is a leak, the pressure will change accordingly. Then, the parameters preset on the control panel 58 can be compared with the monitoring data to effectively detect the sealing of the connection.

[0026] The inner wall of the cover 52 is equipped with a gas concentration sensor 581 and a temperature sensor 582. Both the gas concentration sensor 581 and the temperature sensor 582 are connected to the control panel 58. The gas concentration sensor 581 is used to detect the composition and concentration changes of the gas inside. At the same time, the temperature sensor 582 detects temperature changes. Therefore, when there is an oil or gas leak at the pipe connection, the gas concentration sensor 581 will detect an increase in the oil or gas concentration, and the temperature sensor 582 may also experience abnormal temperature changes due to the leaked oil or gas or other factors. These signals are transmitted to the control panel 58.

[0027] The upper surface of the cover 52 is equipped with an audible and visual signal light 59, which is connected to the control panel 58. When the control panel 58 detects an abnormal situation, it will control the audible and visual signal light 59 to emit an audible and visual alarm signal to remind the staff to pay attention.

[0028] The upper surface of the box body 53 is provided with a T-shaped sealing gasket 6, and the bottom of the box cover 52 is provided with a groove 61. The upper surface of the T-shaped sealing gasket 6 is fitted into the inside of the groove 61. The T-shaped sealing gasket 6 is fitted into the groove 61 at the bottom of the box cover 52. When the box cover 52 is connected to the box body 53, the T-shaped sealing gasket 6 plays a sealing role to prevent external gas from entering the interior and ensure the accuracy of the test.

[0029] The connecting component 4 includes an arc-shaped locking block A41 sleeved on the outer surface of the connecting cylinder 3, and an arc-shaped locking block B42 hinged to the upper surface of the arc-shaped locking block A41. The arc-shaped locking block A41 and the arc-shaped locking block B42 are connected by bolt threads. Since the arc-shaped locking block A41 and the arc-shaped locking block B42 are sleeved on the outer surface of the connecting cylinder 3 and connected by hinge and bolt, the connecting cylinder can be tightly fixed between the first pipe 1 and the second pipe 2 to realize the connection of the pipes.

[0030] The inner walls of the arc-shaped locking blocks A41 and B42 are provided with sealing rings 43 to further increase the sealing of the connection and prevent leakage.

[0031] The outer surfaces of the lid 52 and the body 53 are provided with a protective coating. The protective coating is a component made of silane coating, which can not only maintain stable performance under different environmental conditions, but also effectively prevent the intrusion of moisture, dust and oil.

[0032] Specifically, since the arc-shaped locking blocks A41 and B42 are fitted onto the outer surface of the connecting cylinder 3 and connected by hinges and bolts, the connecting cylinder can be tightly fixed between the first pipe 1 and the second pipe 2, thus achieving pipe connection. Furthermore, the inner walls of the arc-shaped locking blocks A41 and B42 are equipped with sealing rings 43, further increasing the sealing performance of the connection and preventing leakage. Also, since the cover 52 is fixed to the outer surface of the connecting cylinder 3 via the connecting plate A51, and then aligned with the connecting plate B54, and connected to the cover 52 via bolts and threads, a sealed detection and control system can be formed. Furthermore, since the bottom of the box 53 is fitted with a mounting plate 55, and a miniature air pump 56 is installed on the upper surface of the mounting plate 55, with a three-way pipe 561 at one end penetrating the interior of the connecting plate B54, it can... Figure 4 and Figure 5As can be seen, the gas-entering cavity is enclosed at the pipe connection. When the micro air pump 56 is activated, it fills the cavity with gas. Simultaneously, the pressure sensor 57 monitors the pressure changes within the cavity in real time. Therefore, if the pipe connection is well-sealed, the pressure will remain stable after inflation. If a leak occurs, the pressure will change accordingly. The connection's sealing performance can then be effectively detected by comparing the preset parameters on the control panel 58 with the monitoring data. Furthermore, the inner wall of the cover 52 is equipped with a gas concentration sensor 581 and a temperature sensor 582. The gas concentration sensor 581 detects changes in the internal gas composition and concentration, while the temperature sensor 582 detects temperature changes. Therefore, when there is an oil or gas leak at the pipe connection, the gas concentration sensor 581 will detect an increase in oil or gas concentration, and the temperature sensor 582 may also experience abnormal temperature changes due to leaking oil or gas or other factors. These signals are transmitted to the control panel 58. When the control panel 58 detects an abnormality, it will activate the audible and visual alarm light 59 on the upper surface of the cover 52 to alert personnel. In the above process, the T-shaped sealing gasket 6 is fitted into the groove 61 at the bottom of the box cover 52. When the box cover 52 is connected to the box body 53, the T-shaped sealing gasket 6 plays a sealing role, preventing external gas from entering the interior and ensuring the accuracy of the test. Finally, since the outer surfaces of the box cover 52 and the box body 53 are provided with a protective coating made of silane, they can not only maintain stable performance under different environmental conditions, but also effectively prevent the intrusion of moisture, dust and oil.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A connection structure for an oil drilling and production pipeline, characterized in that: It includes a first pipe and a second pipe, and a connecting cylinder disposed between the first pipe and the second pipe. Both ends of the connecting cylinder are provided with connecting components for fixing the connection, and the outer surface of the connecting cylinder is provided with a detection component for detecting the sealing performance. The detection assembly includes a connecting plate A disposed on the outer surface of the connecting cylinder, and a cover disposed on the upper surface of the connecting plate A. The bottom of the cover is connected to a box body by bolts. A connecting plate B is disposed inside the box body. The bottom of the connecting plate A and the upper surface of the connecting plate B are fitted into the outer surface of the connecting cylinder. A mounting plate is fitted into the bottom of the box body. A miniature air pump is disposed on the upper surface of the mounting plate. A three-way pipe is disposed at one end of the miniature air pump. One end of the three-way pipe passes through the interior of the connecting plate B. The other end of the miniature air pump is connected to the outside. A pressure sensor is disposed on the inner wall of the cover. A control panel is disposed on the upper surface of the cover. The pressure sensor is connected to the control panel for signal transmission.

2. The connection structure of the oil drilling and production pipeline according to claim 1, characterized in that: The inner wall of the box lid is equipped with a gas concentration sensor and a temperature sensor, both of which are connected to the control panel.

3. The connection structure of the oil drilling and production pipeline according to claim 1, characterized in that: The upper surface of the box cover is provided with an audible and visual signal light, which is connected to the control panel.

4. The connection structure of the oil drilling and production pipeline according to claim 1, characterized in that: The upper surface of the box is provided with a T-shaped sealing gasket, and the bottom of the box cover is provided with a groove, the upper surface of the T-shaped sealing gasket being fitted and connected to the inside of the groove.

5. The connection structure of the oil drilling and production pipeline according to claim 1, characterized in that: The connecting assembly includes an arc-shaped locking block A sleeved on the outer surface of the connecting cylinder, and an arc-shaped locking block B hinged to the upper surface of the arc-shaped locking block A. The arc-shaped locking block A and the arc-shaped locking block B are connected by bolt threads.

6. The connection structure of the oil drilling and production pipeline according to claim 1, characterized in that: The inner walls of the arc-shaped card block A and arc-shaped card block B are provided with sealing rings.

7. The connection structure of the oil drilling and production pipeline according to claim 1, characterized in that: The outer surfaces of the lid and body are provided with a protective coating, which is a component made of silane coating.

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