Oil pipeline blockage detection device

Abstract

The invention relates to the technical field of oil pipeline blockage section detection, in particular to an oil pipeline blockage detection device which comprises a shell, a first detection module, a second detection module and a wireless transmitting module. The whole oil pipeline blockage detection device is arranged at an inlet of an oil pipeline, and the oil pipeline blockage detection device is driven to move in the oil pipeline by using the flowing power of crude oil in the oil pipeline. When a blockage point is reached, the first detection module detects a first blockage signal. The second detection module then detects a second jam signal. The wireless transmitting module can receive a first blocking signal detected by the first detection module and a second blocking signal detected by the second detection module, and transmit a first radio signal and a second radio signal to the receiver, so that workers can accurately judge the blocked section of the oil pipeline, and the misjudgment rate is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of oil pipeline blockage detection, and in particular to an oil pipeline blockage detection device. Background Art

[0002] Crude oil is a complex mixture of various organic compounds, including waxes (saturated or normal alkanes), aromatic hydrocarbons, isoparaffins, colloids, and asphaltenes. Wax deposition is unavoidable during the transportation of crude oil through pipelines, adversely affecting the production, transportation, and refining processes.

[0003] As crude oil is pumped from the seabed to the operating platform, dissolved gases in the crude expand, causing the oil temperature to drop. This phenomenon can easily lead to wax precipitation in the crude oil, which deposits on the inner walls of the pipeline. During crude oil transportation, when the ambient temperature falls below the wax precipitation point, wax in the crude oil will also precipitate and deposit on the inner walls of the pipeline. Over time, the wax deposits on the inner walls gradually increase in thickness, causing pipeline blockage. Severely clogged pipeline sections require excavation and replacement.

[0004] Currently, how to accurately determine the blocked section of an oil pipeline has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] The present invention provides an oil pipeline blockage detection device, which is used to solve the problem of how to accurately determine the blocked section of the oil pipeline.

[0006] The present invention provides an oil pipeline blockage detection device, comprising: case; A first detection module is installed at one end of the housing; A second detection module is installed inside the housing; The wireless transmitting module is installed in the housing and is connected to the first detection module and the second detection module respectively.

[0007] In some embodiments, a plurality of insertion slots are formed at one end of the housing close to the first detection module; The first detection module includes: The impact ring is provided at one end of the shell and can move along the axial direction of the shell; There are multiple transmission rods evenly distributed along the circumference of the impacted ring; one end of each transmission rod is fixedly connected to the impacted ring, and the other end is inserted into an insertion groove; A pressure detection sensor is installed in one of the insertion slots; The extrusion block is installed at the end of the transmission rod away from the impact ring and can squeeze the pressure detection sensor; There are multiple springs, which are sleeved on the transmission rods in one-to-one correspondence with the multiple transmission rods; one end of each spring contacts the impact ring, and the other end contacts the shell.

[0008] In some embodiments, the first detection module further includes: The force equalizing part is installed on a side surface of the impacted ring away from the shell.

[0009] In some embodiments, the second detection module is an acceleration detection sensor.

[0010] In some embodiments, further comprising: The blockage-breaking mechanism can rotate around its own axis and can move axially along the shell, so that the blockage-breaking mechanism can extend out of the shell or retract into the shell.

[0011] In some embodiments, the blockage-breaking mechanism includes: The movable seat can rotate around its own axis and can move along the axial direction of the shell; There are multiple cleaning claws, which are evenly distributed along the circumference of the movable base, and one end of each cleaning claw is hinged to the edge of the movable base; There are multiple linear drivers, which correspond to the multiple cleaning claws one by one; the fixed end of each linear driver is hinged on the movable seat, and the output end is hinged to the middle of the cleaning claw.

[0012] In some embodiments, further comprising: The driving mechanism is connected to the moving base and is used for driving the moving base to rotate and move.

[0013] In some embodiments, the drive mechanism comprises: A screw rod is inserted into the housing along the axis of the housing, and one end of the screw rod is fixedly connected to the movable seat; Spline, mounted on the screw; Nut, installed on the screw; A first rotary driver is fixedly installed in the housing; A first driving sprocket is sleeved on the output shaft of the first rotary driver; The first driven sprocket is sleeved on the outside of the spline and connected to the first driving sprocket through a first transmission chain; A second rotary driver is fixedly installed in the housing; A second driving sprocket is sleeved on the output shaft of the second rotary driver; The second driven sprocket is sleeved on the outside of the nut and is connected to the second driving sprocket through a second transmission chain.

[0014] In some embodiments, further comprising: There are multiple rollers evenly installed outside the shell along the circumference of the shell; A partition is installed at one end of the shell.

[0015] In some embodiments, further comprising: The power supply is installed in the shell and connected to the wireless transmitting module.

[0016] The beneficial effects of the present invention are as follows: The oil pipeline blockage detection device of the present invention is provided with a shell, a first detection module, a second detection module and a wireless transmission module. The oil pipeline blockage detection device is placed as a whole at the entrance of the oil pipeline, and the power of the crude oil flowing in the oil pipeline is used to drive the oil pipeline blockage detection device to move in the oil pipeline. When arriving at the blockage point, the first detection module detects the first blockage signal. Then, the second detection module detects the second blockage signal. The wireless transmission module can receive the first blockage signal detected by the first detection module and the second blockage signal detected by the second detection module, and transmit the first radio signal and the second radio signal to the receiver, so that the staff can accurately determine the blocked section of the oil pipeline and greatly reduce the misjudgment rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of some specific embodiments of an oil pipeline blockage detection device of the present invention; Figure 2 yes Figure 1 The structure diagram of the oil pipeline blockage detection device shown is in use.

[0018] In the accompanying drawings, 110, the shell; 120, the first detection module; 121, the impact ring; 122, the transmission rod; 123, the pressure detection sensor; 124, the extrusion block; 125, the spring; 126, the force equalizing part; 130, the second detection module; 140, the blockage breaking mechanism; 141, the moving seat; 142, the cleaning claw; 143, the linear drive; 150, the driving mechanism; 151, the screw; 1511, the anti-slip block; 152, the spline; 153, the nut; 154, the first rotary drive; 155, the first transmission chain; 156, the second rotary drive; 157, the second transmission chain; 160, the roller; 170, the partition; 180, the power supply; 191, the support plate; 192, the bearing; 200, the oil pipeline. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] As described in the background, wax deposits on the inner walls of oil pipelines gradually increase in thickness over time, causing them to become clogged. Severely clogged sections of pipelines require excavation and replacement. Currently, accurately identifying clogged sections of oil pipelines has become a pressing technical challenge for those skilled in the art.

[0021] To solve the above problems, refer to Figure 1 and Figure 2 The present invention provides an oil pipeline blockage detection device, comprising a housing 110, a first detection module 120, a second detection module 130, and a wireless transmitter module. The first detection module 120 is mounted at one end of the housing 110 and is used to initially detect whether the oil pipeline 200 is blocked. The second detection module 130 is mounted within the housing 110 and is used to recheck whether the oil pipeline 200 is blocked. The wireless transmitter module is mounted within the housing 110 and is electrically connected to the first detection module 120 and the second detection module 130, respectively.

[0022] The working process and principle of the oil pipeline blockage detection device are as follows: First, the oil pipeline blockage detection device is placed as a whole at the entrance of the oil pipeline 200. At this time, the end of the housing 110 with the first detection module 120 installed faces the inside of the oil pipeline 200, while the end of the housing 110 without the first detection module 120 installed faces the outside of the oil pipeline 200. Figure 2 As shown, the oil pipeline blockage detection device utilizes the power of crude oil flowing within oil pipeline 200 to move within the pipeline. Upon reaching the blockage point, the first detection module 120 detects a first blockage signal. Then, the second detection module 130 detects a second blockage signal. The wireless transmission module receives the first blockage signal detected by the first detection module 120 and the second blockage signal detected by the second detection module 130, and transmits the first and second radio signals to the receiver, enabling personnel to accurately determine the blocked section of the oil pipeline 200 while significantly reducing the risk of false positives.

[0023] Specifically, in the exemplary embodiment, a plurality of insertion slots are formed at one end of the housing 110 near the first detection module 120. The first detection module 120 includes a collision ring 121, a plurality of transmission rods 122, a pressure detection sensor 123, a compression block 124, a plurality of springs 125, and a force equalizing portion 126. The collision ring 121 is disposed at one end of the housing 110 and is movable axially along the housing 110. The plurality of transmission rods 122 are evenly distributed along the circumference of the collision ring 121. One end of each transmission rod 122 is fixedly connected to the collision ring 121, and the other end is inserted into an insertion slot. The pressure detection sensor 123 is mounted in one of the insertion slots. The compression block 124 is mounted at the end of the transmission rod 122 away from the collision ring 121 and is capable of compressing the pressure detection sensor 123. The pressure detection sensor 123 is electrically connected to the wireless transmission module and is capable of transmitting detected pressure signals to the wireless transmission module. The plurality of springs 125 are mounted on the transmission rods 122 in a one-to-one correspondence with the plurality of transmission rods 122. One end of each spring 125 contacts the impacted ring 121, and the other end contacts the shell 110. When the oil pipeline blockage detection device reaches the blockage point, the impacted ring 121 collides with the paraffin agglomerate, and the impacted ring 121 is instantly braked, while the shell 110 still has a tendency to move forward under the push of crude oil. At this time, each spring 125 is gradually compressed, and the pressure detection sensor 123 transmits the real-time detected pressure signal to the wireless transmission module. The wireless transmission module determines whether the detected pressure signal exceeds the first threshold value. When it exceeds the first threshold value, it transmits a first radio signal to the receiver. The force equalizing part 126 is installed on the side surface of the impacted ring 121 away from the shell 110. When it is hit, the collision force can be better distributed to various parts of the impacted ring 121, thereby improving the sensitivity and accuracy of the detection.

[0024] Preferably, the force equalizing portion 126 is a rubber ring with liquid stored inside.

[0025] Preferably, the second detection module 130 is an acceleration detection sensor that can detect the acceleration signal of the oil pipeline blockage detection device in real time. It should be noted that when the oil pipeline blockage detection device moves normally in the oil pipeline 200, it is in a uniform motion state with an acceleration of 0. When it reaches the blockage point, the acceleration signal increases instantaneously and then returns to 0. When the blockage is broken, the acceleration signal increases instantaneously again. The acceleration detection sensor transmits the acceleration signal detected in real time to the wireless transmission module. The wireless transmission module determines whether the detected acceleration signal exceeds the second threshold. When it exceeds the second threshold, it transmits a second radio signal to the receiver to help the staff confirm the blocked section again. When the wireless transmission module determines whether the detected acceleration signal exceeds the third threshold, when it exceeds the third threshold, it transmits a third radio signal to the receiver to remind the staff that the blocked section has been opened without the need for excavation and replacement.

[0026] Specifically, in this example, the oil pipeline blockage detection device also includes a blockage-breaking mechanism 140. This blockage-breaking mechanism 140 is capable of rotating about its own axis and moving axially along the housing 110, allowing it to extend out of or retract into the housing 110. When the wireless transmitter module transmits a first radio signal to the receiver, the blockage-breaking mechanism 140 rotates about its own axis and moves axially along the housing 110, allowing it to extend out of and retract into the housing 110 multiple times, thereby breaking the blockage. This eliminates the need to excavate and replace pipeline sections with less severe blockages.

[0027] Specifically, in the exemplary embodiment, the oil pipeline blockage detection device further includes a driving mechanism 150 . The driving mechanism 150 is connected to the movable seat 141 of the blockage-breaking mechanism 140 , and is used to drive the movable seat 141 of the blockage-breaking mechanism 140 to rotate and move, thereby providing power for the movement of the blockage-breaking mechanism 140 .

[0028] Preferably, the unblocking mechanism 140 includes a movable seat 141, a plurality of cleaning claws 142 and a plurality of linear drivers 143. The movable seat 141 can rotate around its own axis and can move axially along the shell 110. The plurality of cleaning claws 142 are evenly distributed along the circumference of the movable seat 141, and one end is hinged to the edge of the movable seat 141 respectively. The plurality of linear drivers 143 correspond one to one to the plurality of cleaning claws 142. The fixed end of each linear driver 143 is hinged to the movable seat 141, and the output end is hinged to the middle part of the cleaning claw 142, which can drive the corresponding cleaning claw 142 to rotate, thereby causing the plurality of cleaning claws 142 to move toward each other to close or move back to back to expand. It should be noted that when the movable seat 141 moves outside the shell 110, the plurality of cleaning claws 142 move back to back to expand. The drive mechanism 150 includes a screw 151, a spline 152, a nut 153, a first rotary driver 154, a first driving sprocket, a first driven sprocket, a first transmission chain 155, a second rotary driver 156, a second driving sprocket, a second driven sprocket, and a second transmission chain 157. The screw 151 extends through the housing 110 along the axis of the housing 110, with one end fixedly connected to the movable seat 141. The spline 152 is mounted on the screw 151. The nut 153 is mounted on the screw 151. The first rotary driver 154 is fixedly mounted in the housing 110. The first driving sprocket is sleeved on the output shaft of the first rotary driver 154. The first driven sprocket is sleeved on the outside of the spline 152 and is connected to the first driving sprocket via the first transmission chain 155. The second rotary driver 156 is fixedly mounted in the housing 110. The second driving sprocket is sleeved on the output shaft of the second rotary driver 156. The second driven sprocket is sleeved onto the outside of the nut 153 and is connected to the second driving sprocket via a second transmission chain 157. The first rotary driver 154 can drive the first driving sprocket to rotate, which in turn drives the first driven sprocket and the spline 152 to rotate via the first transmission chain 155. The second rotary driver 156 can drive the second driving sprocket to rotate, which in turn drives the second driven sprocket and the nut 153 to rotate via the second transmission chain 157. Overall, the screw 151 can achieve a combination of rotational and linear motion.

[0029] Preferably, two support plates 191 are installed in the housing 110. The spline 152 is rotatably mounted in the middle of one support plate 191 via a bearing 192. The nut 153 is rotatably mounted in the middle of the other support plate 191 via another bearing 192. The two support plates 191 support the spline 152 and the nut 153, respectively.

[0030] Preferably, each linear actuator 143 is an electric push rod electrically connected to a wireless transmitter module, which controls the operation of each linear actuator 143. The first rotary actuator 154 is a servo motor electrically connected to the wireless transmitter module, which controls the operation of the first rotary actuator 154. The second rotary actuator 156 is a servo motor electrically connected to the wireless transmitter module, which controls the operation of the second rotary actuator 156.

[0031] Specifically, in this example, the oil pipeline blockage detection device further includes a plurality of rollers 160. These rollers 160 are evenly mounted on the outside of the housing 110 along its circumference. Each roller 160 is adapted to conform to the inner wall of the oil pipeline 200, thereby ensuring smoother movement of the oil pipeline blockage detection device within the oil pipeline 200. A partition 170 is mounted at one end of the housing 110 to isolate the drive mechanism 150, power supply 180, and wireless transmitter module from the crude oil.

[0032] Specifically, in this example, the oil pipeline blockage detection device further includes a power supply 180. Power supply 180 is installed within housing 110 and connected to the wireless transmitter module, capable of supplying power to the wireless transmitter module. The wireless transmitter module can supply power to first rotary actuator 154, second rotary actuator 156, linear actuator 143, pressure sensor 123, and acceleration sensor.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0037] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An oil pipeline blockage detection device, characterized in that: include: case; A first detection module is installed at one end of the housing; a second detection module, installed inside the housing; The wireless transmitting module is installed in the housing and is connected to the first detection module and the second detection module respectively.

2. The oil pipeline blockage detection device according to claim 1, characterized in that: A plurality of insertion slots are formed on one end of the housing close to the first detection module; The first detection module includes: An impact ring is provided at one end of the housing and is capable of moving along the axial direction of the housing; There are multiple transmission rods, which are evenly distributed along the circumference of the impacted ring; one end of each transmission rod is fixedly connected to the impacted ring, and the other end is inserted into one of the insertion grooves; a pressure detection sensor, installed in one of the insertion slots; an extrusion block, mounted on an end of the transmission rod away from the impact ring, capable of squeezing the pressure detection sensor; There are multiple springs, which are sleeved on the transmission rods in a one-to-one correspondence with the multiple transmission rods; one end of each spring contacts the impact ring, and the other end contacts the shell.

3. The oil pipeline blockage detection device according to claim 2, characterized in that: The first detection module further includes: The force balancing part is installed on a side surface of the impacted ring away from the shell.

4. The oil pipeline blockage detection device according to any one of claims 1 to 3, characterized in that: The second detection module is an acceleration detection sensor.

5. The oil pipeline blockage detection device according to any one of claims 1 to 3, characterized in that: Also includes: The blockage-breaking mechanism can rotate around its own axis and can move axially along the shell, so that the blockage-breaking mechanism can extend out of the shell or retract into the shell.

6. The oil pipeline blockage detection device according to claim 5, characterized in that: The blocking-breaking mechanism comprises: A movable seat capable of rotating about its own axis and moving axially along the shell; A plurality of cleaning claws are evenly distributed along the circumference of the movable base, and one end of each cleaning claw is hinged to the edge of the movable base; There are multiple linear drivers, which correspond one to one with the multiple cleaning claws; the fixed end of each linear driver is hinged to the movable seat, and the output end is hinged to the middle of the cleaning claw.

7. The oil pipeline blockage detection device according to claim 6, characterized in that: Also includes: The driving mechanism is connected to the moving base and is used to drive the moving base to rotate and move.

8. The oil pipeline blockage detection device according to claim 7, characterized in that: The driving mechanism comprises: a screw rod, which is inserted into the housing along the axis of the housing and has one end fixedly connected to the movable seat; A spline mounted on the screw; a nut, mounted on the screw; A first rotary driver is fixedly installed in the housing; a first driving sprocket, sleeved on the output shaft of the first rotary driver; A first driven sprocket is sleeved on the outside of the spline and connected to the first driving sprocket via a first transmission chain; a second rotary driver, fixedly mounted in the housing; a second driving sprocket, sleeved on the output shaft of the second rotary driver; The second driven sprocket is sleeved on the outside of the nut and is connected to the second driving sprocket through a second transmission chain.

9. The oil pipeline blockage detection device according to any one of claims 1 to 3, characterized in that: Also includes: There are multiple rollers evenly installed outside the shell along the circumference of the shell; A partition is installed at one end of the shell.

10. The oil pipeline blockage detection device according to any one of claims 1 to 3, characterized in that: Also includes: The power supply is installed in the housing and connected to the wireless transmitting module.

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