Pipeline sealing device and sealing method

Abstract

The present invention provides a pipeline sealing device and sealing method. The pipeline sealing device includes a conveying pipeline, a main body, a monitoring component, and a sealing component. The sealing component includes a sealing portion and a fluid conveying pump. The monitoring component includes a leakage sensor and a controller for monitoring whether the conveying pipeline leaks. The main body is sleeved outside the conveying pipeline. The sealing portion is arranged between the main body and the conveying pipeline. The fluid conveying pump is arranged on the main body. The sealing portion is connected to the fluid outlet of the fluid conveying pump. The fluid conveying pump is used to pump fluid into the sealing portion to expand the sealing portion and seal the leakage location. The leakage sensor is arranged in the main body. The leakage sensor and the fluid conveying pump are communicatively connected to the controller. The pipeline sealing device and sealing method provided by the present invention can solve the problem that existing conveying pipelines cannot promptly warn and seal leaks, thereby improving the safety and reliability of the conveying pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline sealing, and in particular to a pipeline sealing device and a sealing method. Background Art

[0002] Carbon dioxide (CO2) pipelines are a key component of carbon capture, utilization, and storage (CCUS) technology. They are widely used to capture CO2 from industrial emissions and safely and efficiently transport it to storage sites or reuse facilities. These storage sites are often located in underground geological structures, such as depleted oil and gas fields or deep saline aquifers. This ensures the long-term, stable storage of CO2, reducing greenhouse gas emissions and combating global warming. In industrial production, CO2, as a raw material, is also transported via pipelines to chemical plants and the food industry for use in the production of products such as urea, methanol, and carbonated beverages, demonstrating its value in economic activities. Furthermore, CO2 pipelines play a vital role in building carbon markets and enabling carbon trading. Pipeline transportation enables large-scale trading of carbon emission reduction credits, promotes global carbon emission rights trading, and provides a flexible path to achieving emission reduction targets.

[0003] However, CO2 gas pipelines, especially at pipeline joints, are the most prone to leakage due to various reasons such as mechanical vibration, temperature changes, material aging, and construction defects. CO2 leakage will not only significantly reduce the economic feasibility and efficiency of projects such as CCUS, but more importantly, it poses a serious threat to the environment and human health. Large-scale CO2 leakage will exacerbate global warming and disrupt the ecological balance. Under specific geological storage conditions, CO2 leakage may also contaminate groundwater and affect the environmental quality of soil and groundwater. Existing CO2 gas pipelines usually install sealing components such as locking structures or sealing gaskets at pipeline joints to reduce the risk of CO2 leakage. However, as the sealing locking time increases and the environmental conditions inside and outside the gas pipeline continue to change, the reliability of the locking structure and seals gradually decreases, eventually leading to leakage. In addition, it is impossible to warn and seal the leakage in time, which in turn causes major safety accidents. Summary of the Invention

[0004] The main purpose of the present invention is to provide a pipeline sealing device that can solve the problem that existing conveying pipelines cannot promptly warn and seal leaks, thereby improving the safety and reliability of the conveying pipelines.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a pipeline sealing device is provided, including a conveying pipeline, a main body, a monitoring component and a sealing component, the sealing component including a sealing part and a fluid conveying pump, the monitoring component including a leakage sensor and a controller for monitoring whether leakage occurs in the conveying pipeline, the main body is arranged outside the conveying pipeline, the sealing part is arranged between the main body and the conveying pipeline, the fluid conveying pump is arranged on the main body, the sealing part is connected to the fluid outlet of the fluid conveying pump, the fluid conveying pump is used to pump fluid into the sealing part to expand the sealing part and seal the leakage position, the leakage sensor is arranged in the main body, and the leakage sensor and the fluid conveying pump are communicatively connected with the controller.

[0006] Furthermore, frames are provided at both ends of the sealing part, which are connected to the ends of the body. The sealing part includes a first sealing layer and a second sealing layer. A closed accommodating cavity is formed between the first sealing layer and the second sealing layer, and the accommodating cavity is connected to the fluid outlet of the fluid delivery pump.

[0007] Furthermore, there are multiple frames, and the multiple frames are arranged at intervals.

[0008] Furthermore, the sealing assembly also includes a limiting portion, which includes a first limiting member and a second limiting member. The first limiting member wraps one side of the sealing portion, and the second limiting member wraps the other side opposite to the first limiting member.

[0009] Furthermore, the sealing assembly further includes a buffer portion, which is arranged between the limiting portion and the body.

[0010] Furthermore, the buffer portion includes a rubber block and a buffer spring. The buffer spring is arranged on the outer surface of the limiting portion, and the rubber block is arranged in the cavity at the center of the buffer spring.

[0011] Furthermore, a rubber block or a buffer spring is provided on the outer wall surface of the limiting portion.

[0012] Furthermore, there are multiple rubber blocks, and a clamping block is provided between two adjacent rubber blocks.

[0013] Furthermore, a first connection portion is provided at the first end of the body, a second connection portion is provided at the second end of the body, and the pipeline sealing device also includes a reinforcing rib, one end of the reinforcing rib is connected to the first connection portion, and the other end is connected to the second connection portion.

[0014] Furthermore, a first fastener is provided at the first end of the body, a first connecting portion is provided on the first fastener, a second fastener is provided at the second end of the body, a second connecting portion is provided on the second fastener, and the pipe sealing device also includes a reinforcing rib, one end of the reinforcing rib is connected to the first connecting portion, and the other end of the reinforcing rib is connected to the second connecting portion.

[0015] Furthermore, the pipeline sealing device also includes a sealing component, which includes a hot-melt material layer and a heating part. The hot-melt material layer is arranged on the surface where the sealing part contacts the outer wall of the conveying pipe. The heating part is arranged inside the sealing part or on the surface of the sealing part close to the limiting part. The heating part is communicatively connected to the controller.

[0016] Furthermore, the pipeline sealing device also includes a fastener, and the monitoring component also includes a buzzer, which is arranged on the body or the fastener, and the buzzer is communicatively connected to the controller.

[0017] According to another aspect of the present invention, a pipeline sealing method is provided, wherein the pipeline connection is sealed using the above-mentioned pipeline sealing device, and the method comprises:

[0018] Detect whether there is gas leakage in the pipeline;

[0019] When gas leakage is detected in the pipeline, the pipeline sealing device is controlled to start the sealing process;

[0020] The pipeline sealing device is controlled to stop after the pipeline sealing device completes sealing.

[0021] Furthermore, the step of controlling the pipeline sealing device to start the sealing procedure includes:

[0022] Control the buzzer to start;

[0023] The control fluid delivery pump starts.

[0024] Furthermore, the step of controlling the pipeline sealing device to shut down after the pipeline sealing device completes sealing includes:

[0025] Obtaining the internal pressure of the sealing part;

[0026] Compare the internal pressure of the sealing part with the pressure threshold, and determine whether to control the fluid delivery pump to stop according to the comparison result;

[0027] If the internal pressure of the sealing part is greater than or equal to the pressure threshold, the fluid delivery pump is controlled to stop, and the buzzer is controlled to stop;

[0028] If the internal pressure of the sealing portion is lower than the pressure threshold, the fluid delivery pump is controlled to continue to operate.

[0029] Furthermore, the step of controlling the pipeline sealing device to shut down after the pipeline sealing device completes sealing includes:

[0030] When no leaking gas is detected;

[0031] Control the fluid delivery pump to stop and control the buzzer to stop.

[0032] The present invention provides a pipeline for transporting gases such as carbon dioxide, a body serving as the main frame of the sealing device and supporting a monitoring component and a sealing component, a fluid pump for pumping a fluid such as air or water into the sealing portion to expand the sealing portion, and the sealing portion, after being expanded by the fluid such as air or water, covers the surface of the pipeline to seal the leak on the pipeline, a leakage sensor is disposed within the body for monitoring the leakage of the material transported by the pipeline, the leakage sensor and the fluid pump are communicatively connected to a controller, and when the leakage sensor detects a material leak, it immediately sends a signal to the controller, which, upon receiving the signal from the leakage sensor, initiates alarm and sealing procedures, and controls the fluid pump to pump a fluid such as air or water into the sealing portion to expand the sealing portion to seal the leak on the pipeline. The pipeline sealing device provided by the present invention solves the problem that existing pipelines cannot provide timely alarms and automatic sealing for leaks by providing a monitoring component and a sealing component, thereby improving the safety and reliability of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 A schematic diagram showing the overall structure of a pipeline sealing device according to an embodiment of the present invention is shown;

[0035] Figure 2 A schematic structural diagram of a delivery pipeline of a pipeline sealing device according to an embodiment of the present invention is shown;

[0036] Figure 3 A schematic structural diagram of a sealing portion of a pipeline sealing device according to an embodiment of the present invention is shown;

[0037] Figure 4 A schematic diagram showing a monitoring assembly of a pipeline sealing device according to an embodiment of the present invention;

[0038] Figure 5 An exploded view of a pipe sealing device according to an embodiment of the present invention is shown;

[0039] Figure 6 An exploded view showing a buffer portion of a pipe sealing device according to an embodiment of the present invention; and

[0040] Figure 7 Another structural schematic diagram of the sealing portion of the pipeline sealing device according to an embodiment of the present invention is shown.

[0041] The above drawings include the following reference numerals:

[0042] 1. Conveying pipeline; 2. Main body; 3. Sealing part; 31. Frame; 32. First sealing layer; 33. Second sealing layer; 4. Fluid delivery pump; 51. First limiter; 52. Second limiter; 6. Buffer part; 61. Rubber block; 62. Buffer spring; 63. Clamp; 71. Controller; 72. Buzzer; 73. Battery; 74. Leakage sensor; 8. Fastener; 81. First fastener; 82. Second fastener; 83. First connecting part; 84. Second connecting part; 9. Reinforcement rib. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] See also Figures 1 to 7 As shown, the present invention provides a pipeline sealing device, which includes a conveying pipeline 1, a main body 2, a monitoring component and a sealing component. The sealing component includes a sealing part 3 and a fluid conveying pump 4. The monitoring component includes a leakage sensor 74 and a controller 71 for monitoring whether the conveying pipeline 1 leaks. The main body 2 is arranged outside the conveying pipeline 1, the sealing part 3 is arranged between the main body 2 and the conveying pipeline 1, the fluid conveying pump 4 is arranged on the main body 2, the sealing part 3 is connected to the fluid outlet of the fluid conveying pump 4, the fluid conveying pump 4 is used to pump fluid into the sealing part 3 to expand the sealing part 3 and seal the leakage position, the leakage sensor 74 is arranged in the main body 2, and the leakage sensor 74 and the fluid conveying pump 4 are communicated with the controller 71.

[0045] In the above technical solution, a delivery pipe 1 is used to transport gases such as carbon dioxide, a body 2 is used as the main frame of the sealing device, and is used to carry a monitoring component and a sealing component, a fluid delivery pump 4 is used to pump a fluid such as air or water into the sealing portion 3, so that the sealing portion 3 expands, and after the sealing portion 3 is filled with fluid such as air or water and expands, it covers the surface of the delivery pipe 1 and blocks the leak point on the delivery pipe 1, a leakage sensor 74 is arranged in the body 2, and is used to monitor the leakage of the material transported by the delivery pipe 1, and the leakage sensor 74 and the fluid delivery pump 4 are in communication with the controller 71. When the leakage sensor 74 detects a material leak, it immediately sends a signal to the controller 71. After receiving the signal from the leakage sensor 74, the controller 71 activates alarm and blocking procedures, and controls the fluid delivery pump 4 to fill the sealing portion 3 with fluid such as air or water, so that the sealing portion 3 expands and blocks the leak point on the delivery pipe 1. A pipeline sealing device provided by the present invention solves the problem that the existing delivery pipeline cannot timely alarm and automatically block the leak by providing a monitoring component and a sealing component, thereby improving the safety and reliability of the delivery pipeline.

[0046] In one embodiment of the present invention, frames 31 are provided at both ends of the sealing portion 3, and the frames 31 are connected to the ends of the body 2. The sealing portion 3 includes a first sealing layer 32 and a second sealing layer 33. A closed accommodating cavity is formed between the first sealing layer 32 and the second sealing layer 33, and the accommodating cavity is connected to the fluid outlet of the fluid delivery pump 4.

[0047] In the above technical solution, the main function of the frame 31 is to provide support for the sealing part 3 and improve the stability of the sealing part 3. By connecting the frame 31 to the end of the main body 2, the connection and fixation between the sealing part 3 and the main body 2 are realized. Moreover, since the frame 31 has a certain rigidity compared with the first sealing layer 32 and the second sealing layer 33 made of elastic material, using the frame 31 as a connecting part can ensure a higher connection strength between the frame 31 and the main body 2, thereby improving the reliability of the connection and reducing the possibility of sliding and offsetting of the sealing part 3 in the main body 2. The first and second sealing layers 32, 33 are typically made of a pressure-resistant, corrosion-resistant, and highly elastic material, such as special rubber or polyurethane. This pressure-resistant, highly elastic material ensures that the first and second sealing layers 32, 33 can stretch without breaking under hydraulic or pneumatic pressure, enabling the sealed cavity to repeatedly expand and contract, thereby improving the reliability and lifespan of the sealing portion 3. The first and second sealing layers 32, 33, made of corrosion-resistant materials, resist corrosion, enabling the sealing portion 3 to block leakage of corrosive materials and preventing damage to the sealing layers due to corrosion, which could lead to failure of the sealing portion 3. This improves the adaptability and reliability of the sealing portion 3. A sealed containment cavity is formed between the first and second sealing layers 32, 33, ensuring that the sealing portion 3 can expand smoothly without leakage after the containment cavity is filled with air or liquid. Under normal operating conditions, the sealing portion 3 is arranged between the main body 2 and the conveying pipeline 1, and the accommodating cavity is in a contracted state. When the leakage sensor 74 detects material leakage in the conveying pipeline 1, it sends a signal to the controller 71. The controller 71 starts the fluid conveying pump 4 to fill the accommodating cavity between the first sealing layer 32 and the second sealing layer 33 with gas or liquid, so that the sealing portion 3 expands and fits tightly on the conveying pipeline 1, thereby achieving temporary blocking of the leakage point.

[0048] In one embodiment of the present invention, there are multiple frames 31 , and the multiple frames 31 are arranged at intervals.

[0049] In the above technical solution, the spaced frames 31 provide better mechanical support for the entire device, enhancing the structural strength of the sealing portion 3 and enabling it to withstand greater external impacts and internal pressure. By adjusting the spacing and size of the multiple frames 31, the sealing portion 3 can adapt to pipelines 1 of varying diameters and provide sealing protection of varying lengths, thereby increasing the versatility and flexibility of the pipeline sealing device.

[0050] In one embodiment of the present invention, the sealing assembly further includes a limiting portion, which includes a first limiting member 51 and a second limiting member 52. The first limiting member 51 wraps one side of the sealing portion 3, and the second limiting member 52 wraps the other side opposite to the first limiting member 51. When the sealing portion 3 is not expanded, the first limiting member 51 and the second limiting member 52 are engaged. When the sealing portion 3 expands, the first limiting member 51 and the second limiting member 52 limit the expansion direction and position of the sealing portion 3. At the same time, the sealing portion 3 causes the first limiting member 51 and the second limiting member 52 to move relative to each other.

[0051] In the above technical solution, when the sealing portion 3 is inflated with air or liquid, it will expand toward both the delivery pipe 1 and the body 2, causing unnecessary pressure on the body 2 and reducing the sealing effect on the delivery pipe 1. By wrapping the first and second stoppers 51, 52 around the outside of the sealing portion 3, the sealing portion 3 is restricted from expanding toward the delivery pipe 1 instead of toward the body 2, thereby reducing the pressure exerted by the sealing portion 3 on the body 2 and improving the sealing effect of the sealing portion 3 on the delivery pipe 1.

[0052] In one embodiment of the present invention, the sealing assembly further includes a buffer portion 6 , which is disposed between the limiting portion and the body 2 .

[0053] In the above technical solution, in the pipeline transportation system, the pipeline may be subjected to external impact or vibration, such as ground vibration, pipeline collision, etc. The buffer part 6 is usually made of elastic or flexible material, so that the buffer part 6 can absorb these impact forces, reduce the strength transmitted to the sealing part 3 and the limiting part, and prevent these components from being damaged or deformed due to external forces. When the sealing part 3 expands toward the conveying pipeline 1 until it has tightly wrapped the conveying pipeline 1, the sealing part 3 has no room for further expansion inward. At this time, the sealing part 3 will expand outward to squeeze the limiting part. Since the buffer part 6 made of elastic or flexible material has the characteristic of being able to deform according to external force, when the sealing part 3 squeezes the limiting part toward the main body 2, the buffer part 6 is compressed to provide a part of buffer space for the sealing part 3, avoiding direct contact between the limiting part and the main body 2 under the squeezing of the sealing part 3, friction or collision, and causing damage, thereby achieving protection for the limiting part and the main body 2.

[0054] In one embodiment of the present invention, the buffer portion 6 includes a force sensor that is in communication with the controller. When the sealing portion 3 has no room to expand further inward and thus expands outward, pressing the limit portion toward the body 2, the force sensor can detect the pressure applied by the limit portion to the body 2 through the buffer portion 6. The force sensor transmits this pressure value to the controller. When the controller determines that the pressure exceeds a certain threshold, indicating that the sealing portion 3 has expanded to a sufficient size to complete the blockage of the delivery pipeline 1, the controller controls the fluid delivery pump 4 to shut down, thereby preventing further expansion of the sealing portion 3 from damaging the sealing device.

[0055] In one embodiment of the present invention, the buffer portion 6 includes a rubber block 61 and a buffer spring 62 . The buffer spring 62 is disposed on the outer surface of the limiting portion, and the rubber block 61 is disposed in a cavity at the center of the buffer spring 62 .

[0056] In the above technical solution, since both the buffer spring 62 and the rubber block 61 have elastic deformation properties, they can compress and expand according to changes in external force, thereby absorbing and dispersing the force between the limiter and the body 2. They can also adapt to the slight displacement of the limiter under the action of the sealing portion 3, thereby protecting the limiter and the body 2 and improving the sealing reliability of the sealing device. The rubber block 61 is disposed in the cavity at the center of the buffer spring 62. The buffer spring 62 also serves to limit and fix the rubber block, preventing the rubber block 61 from shifting and misaligning during the repeated squeezing and releasing to buffer the limiter and the body 2. In addition, when the rubber block 61 is squeezed and compressed, the buffer spring 62 can also be compressed. Compared with a hard limiter, the buffer spring 62 can limit and fix the rubber block 61 without affecting the elastic buffering performance of the rubber block 61, thus avoiding the situation where the hard limiter hinders the rubber block 61 from further compression and buffering.

[0057] In one embodiment of the present invention, a rubber block 61 or a buffer spring 62 is provided on the outer wall surface of the limiting portion.

[0058] In the above technical solution, only the rubber block 61 or the buffer spring 62 is provided on the outer wall surface of the limiting portion, so as to produce a certain buffering effect between the limiting portion and the main body 2 .

[0059] In one embodiment of the present invention, there are multiple rubber blocks 61 , and a clamping block 63 is provided between two adjacent rubber blocks 61 .

[0060] In the above technical solution, multiple rubber blocks 61 are stacked in the cavity at the center of the buffer spring 62, which can further improve the buffering effect. The clamping block 63 has a certain hardness compared to the rubber block 61. Arranging the clamping block 63 between the two rubber blocks 61 can promote the rebound of the rubber blocks 61 on both sides of the clamping block 63, thereby improving the buffering effect of the buffer part 6.

[0061] In one embodiment of the present invention, a first connection portion 83 is provided at the first end of the body 2, and a second connection portion 84 is provided at the second end of the body 2. The pipe sealing device also includes a reinforcing rib 9, one end of the reinforcing rib 9 is connected to the first connection portion 83, and the other end is connected to the second connection portion 84.

[0062] In the above technical solution, the first connecting part 83 and the second connecting part 84 provide a basis for the reinforcing rib 9 to be connected to the main body 2. One end of the reinforcing rib 9 is connected to the first connecting part 83, and the other end is connected to the second connecting part 84. Its main function is to enhance the overall rigidity of the main body 2, effectively disperse and resist the force acting on the main body 2, and prevent the main body 2 from being deformed under high pressure or external impact.

[0063] In one embodiment of the present invention, a first fastener 81 is provided at the first end of the body 2, a first connecting portion 83 is provided on the first fastener 81, a second fastener 82 is provided at the second end of the body 2, a second connecting portion 84 is provided on the second fastener 82, and the pipe sealing device also includes a reinforcing rib 9, one end of the reinforcing rib 9 is connected to the first connecting portion 83, and the other end of the reinforcing rib 9 is connected to the second connecting portion 84.

[0064] In the above technical solution, the first fastener 81 and the second fastener 82 securely fasten the body 2 to locations on the delivery pipeline 1 prone to leakage, such as pipeline joints, preventing the body 2 from sliding and deflecting along the axial direction of the delivery pipeline 1. Furthermore, the first and second fasteners 81, 82 are provided with connecting portions that provide mounting locations for the reinforcing ribs 9. One end of the reinforcing rib 9 is connected to the first connecting portion 83, and the other end of the reinforcing rib 9 is connected to the second connecting portion 84. The reinforcing ribs 9, the fasteners, and the body 2 form a sturdy frame structure that effectively disperses and transmits external impact forces and internal pressure, maintaining structural stability.

[0065] In one embodiment of the present invention, the reinforcing rib 9 is threadedly connected to the first connecting portion 83 , and the reinforcing rib 9 is also threadedly connected to the second connecting portion 84 .

[0066] In the above technical solution, the first fastener 81, the main body 2 and the second fastener 82 are arranged separately, the reinforcing rib 9 is threadedly connected to the first connecting part 83, and the reinforcing rib 9 is also threadedly connected to the second connecting part 84. By tightening the nut, the first fastener 81 and the second fastener 82 are tightened inward, thereby clamping the main body 2 to achieve a fixed connection between the first fastener 81, the main body 2 and the second fastener 82. When the fastener at one end is damaged and needs to be replaced, the fastener and the main body 2 can be separated by loosening the nut, thereby improving the convenience of maintaining and replacing parts.

[0067] In one embodiment of the present invention, the first fastener 81, the body 2 and the second fastener 82 are fixedly connected or integrally formed, which can significantly improve the overall strength compared to a separate arrangement.

[0068] In one embodiment of the present invention, the pipeline sealing device also includes a sealing component, which includes a hot-melt material layer and a heating part. The hot-melt material layer is arranged on the surface where the sealing part 3 contacts the outer wall of the conveying pipe 1. The heating part is arranged inside the sealing part 3 or on the surface of the sealing part 3 close to the limiting part. The heating part is communicated with the controller 71.

[0069] In the above technical solution, the hot-melt material layer is arranged on the surface where the sealing part 3 contacts the outer wall of the conveying pipe 1. After the sealing part 3 expands, the hot-melt material layer abuts against the outer wall of the conveying pipe 1. Then the controller 71 controls the heating part such as a hot wire, a heating pad or a heating airbag to heat the hot-melt material layer, so that the hot-melt material layer melts and flows to cover the outer surface of the conveying pipe 1. After the heating is stopped, the hot-melt material layer cools and hardens into a solid, thereby achieving long-term sealing and plugging of the conveying pipe 1.

[0070] In one embodiment of the present invention, the pipeline sealing device further includes a fastener 8 , and the monitoring assembly further includes a buzzer 72 . The buzzer 72 is disposed on the body 2 or the fastener 8 , and the buzzer 72 is communicatively connected to the controller 71 .

[0071] In the above technical solution, buzzer 72 is connected to controller 71. When the leak sensor detects a leak in the pipeline, a signal is sent to the controller, which then activates the buzzer, sounding an alarm to alert on-site workers of the leak and the need to evacuate or take appropriate measures. This real-time early warning system enables rapid response, shortens the duration of a leak, and reduces safety risks.

[0072] In one embodiment of the present invention, the pipeline sealing device further includes a battery 73 , which is used to power the monitoring component.

[0073] See also Figures 1 to 7 As shown, the present invention also provides a pipeline sealing method, which uses the pipeline sealing device of the above embodiment to seal the pipeline connection, and the method includes:

[0074] Monitor whether there is gas leakage in the pipeline;

[0075] When gas leakage is detected in the pipeline, the pipeline sealing device is controlled to start the sealing procedure;

[0076] The pipeline sealing device is controlled to stop after the pipeline sealing device completes sealing.

[0077] In the above technical solution, leakage sensor 74 continuously monitors the delivery pipeline 1 for gas leaks. When a gas leak is detected within the pipeline, leakage sensor 74 sends a signal to controller 71. Upon receiving the signal, controller 71 controls the pipeline sealing device to initiate a sealing process. When the pipeline sealing device completes the sealing process, controller 71 issues a command to shut down the pipeline sealing device. This pipeline sealing method, by using the pipeline sealing device of the above embodiment to seal the pipeline joint, can address the problem of existing pipelines being unable to promptly warn and seal leaks, thereby improving the safety and reliability of the pipeline.

[0078] In one embodiment of the present invention, the step of controlling the pipeline sealing device to start the sealing process includes:

[0079] Control the buzzer to start;

[0080] The control fluid delivery pump starts.

[0081] In the above technical solution, after receiving the signal, controller 71 controls the buzzer to activate and sound an alarm, thereby immediately notifying on-site personnel of a possible pipeline leak, prompting relevant personnel to quickly take necessary safety measures and maintenance actions. Simultaneously, controller 71 controls fluid delivery pump 4 to activate. Fluid delivery pump 4 pumps a fluid, such as air or water, into sealing portion 3, causing sealing portion 3 to expand. After expanding with the fluid, such as air or water, sealing portion 3 covers the surface of delivery pipeline 1, thereby sealing the leak point on delivery pipeline 1.

[0082] In one embodiment of the present invention, the step of controlling the pipeline sealing device to stop after the pipeline sealing device completes sealing includes:

[0083] Obtaining the internal pressure of the sealing part;

[0084] Compare the internal pressure of the sealing part with the pressure threshold, and determine whether to control the fluid delivery pump to stop according to the comparison result;

[0085] If the internal pressure of the sealing part is greater than or equal to the pressure threshold, the fluid delivery pump is controlled to stop, and the buzzer is controlled to stop;

[0086] If the internal pressure of the sealing portion is lower than the pressure threshold, the fluid delivery pump is controlled to continue to operate.

[0087] In the above technical solution, the pressure value inside the sealing part is obtained by a pressure sensor provided on the sealing part, and the pressure value is transmitted to the controller, which compares the pressure value with the set pressure threshold. When the pressure value is greater than or equal to the pressure threshold, it indicates that the sealing part has expanded to the size of squeezing the conveying pipe and the limit part, and the expansion is limited, resulting in the continuous increase of the pressure inside the sealing part. At this time, the sealing part is sufficient to cover the surface of the conveying pipe, and then the controller controls the fluid delivery pump to stop and stop further filling the sealing part with gas or liquid or other fluids. If the pressure value has not reached the pressure threshold, it means that the sealing part may not have completely covered the surface of the conveying pipe, and the sealing part still has sufficient expansion space. At this time, the fluid delivery pump continues to work, filling the sealing part with gas or liquid or other fluids to make the sealing part continue to expand.

[0088] In one embodiment of the present invention, the step of controlling the pipeline sealing device to stop after the pipeline sealing device completes sealing includes:

[0089] When no leaking gas is detected;

[0090] Control the fluid delivery pump to stop and control the buzzer to stop.

[0091] In the above technical solution, when the leakage sensor no longer detects leaking gas, it means that the sealing device has effectively prevented gas leakage. At this time, there is no need to continue running the fluid delivery pump to fill the sealing part with fluid. Therefore, a shutdown command is sent to the fluid delivery pump through the controller, thereby significantly reducing the power consumption of the fluid delivery pump and other sealing devices, improving the energy utilization efficiency of the entire system, and avoiding energy waste.

[0092] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the conveying pipeline 1 is used to convey gases such as carbon dioxide, the main body 2 serves as the main frame of the sealing device, and is used to carry the monitoring component and the sealing component. The fluid conveying pump 4 is used to pump fluid such as air or water into the sealing part 3 to expand the sealing part 3. After the sealing part 3 is filled with fluid such as air or water and expands, it covers the surface of the conveying pipeline 1 to seal the leakage point on the conveying pipeline 1. The leakage sensor 74 is arranged in the main body 2 to monitor the leakage of the material conveyed by the conveying pipeline 1. The leakage sensor 74 and the fluid conveying pump 4 are communicated with the controller 71. When the leakage sensor 74 detects material leakage, it immediately sends a signal to the controller 71. After receiving the signal from the leakage sensor 74 detecting the leakage, the controller 71 starts the alarm and blocking procedures, and controls the fluid conveying pump 4 to fill the sealing part 3 with fluid such as air or water to expand the sealing part 3 to block the leakage point on the conveying pipeline 1. The pipeline sealing device provided by the present invention solves the problem that existing pipelines cannot timely warn of leaks and automatically seal them by providing a monitoring component and a sealing component, thereby improving the safety and reliability of the pipelines.

[0093] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0094] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0095] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A pipeline sealing device, characterized in that: The invention comprises a delivery pipeline (1), a body (2), a monitoring component and a sealing component, wherein the sealing component comprises a sealing portion (3) and a fluid delivery pump (4), and the monitoring component comprises a leakage sensor (74) and a controller (71) for monitoring whether the delivery pipeline (1) leaks. The body (2) is sleeved outside the delivery pipeline (1), the sealing portion (3) is arranged between the body (2) and the delivery pipeline (1), the fluid delivery pump (4) is arranged on the body (2), the sealing portion (3) is communicated with the fluid outlet of the fluid delivery pump (4), the fluid delivery pump (4) is used to pump fluid into the sealing portion (3) to expand the sealing portion (3) and seal the leakage position, the leakage sensor (74) is arranged in the body (2), and the leakage sensor (74) and the fluid delivery pump (4) are in communication connection with the controller (71); Frames (31) are provided at both ends of the sealing portion (3), the frames (31) being connected to the ends of the body (2), the sealing portion (3) comprising a first sealing layer (32) and a second sealing layer (33), a sealed accommodating cavity being formed between the first sealing layer (32) and the second sealing layer (33), the accommodating cavity being in communication with the fluid outlet of the fluid delivery pump (4); and / or, the frames (31) are multiple, and the multiple frames (31) are arranged at intervals; The sealing assembly further comprises a limiting portion, the limiting portion comprising a first limiting member (51) and a second limiting member (52), the first limiting member (51) wrapping one side of the sealing portion (3), and the second limiting member (52) wrapping the other side opposite to the first limiting member (51); The sealing assembly further comprises a buffer portion (6), wherein the buffer portion (6) is arranged between the limiting portion and the body (2).

2. The pipeline sealing device according to claim 1, characterized in that: The buffer portion (6) comprises a rubber block (61) and a buffer spring (62), wherein the buffer spring (62) is arranged on the outer surface of the limiting portion, and the rubber block (61) is arranged in a cavity at the center of the buffer spring (62); alternatively, the rubber block (61) or the buffer spring (62) is arranged on the outer wall surface of the limiting portion.

3. The pipeline sealing device according to claim 2, characterized in that: There are multiple rubber blocks (61), and a clamping block (63) is provided between two adjacent rubber blocks (61).

4. The pipeline sealing device according to claim 1, characterized in that: The first end of the body (2) is provided with a first connecting portion (83), the second end of the body (2) is provided with a second connecting portion (84), and the pipeline sealing device further comprises a reinforcing rib (9), one end of the reinforcing rib (9) is connected to the first connecting portion (83), and the other end is connected to the second connecting portion (84).

5. The pipeline sealing device according to claim 1, characterized in that: The first end of the body (2) is provided with a first fastener (81), and the first fastener (81) is provided with a first connecting portion (83); the second end of the body (2) is provided with a second fastener (82), and the second fastener (82) is provided with a second connecting portion (84); the pipeline sealing device further comprises a reinforcing rib (9), one end of the reinforcing rib (9) is connected to the first connecting portion (83), and the other end of the reinforcing rib (9) is connected to the second connecting portion (84).

6. The pipeline sealing device according to claim 1, characterized in that: The pipeline sealing device further comprises a plugging component, the plugging component comprising a hot-melt material layer and a heating portion, the hot-melt material layer being arranged on a surface of the sealing portion (3) in contact with an outer wall of the conveying pipeline (1), the heating portion being arranged inside the sealing portion (3) or on a surface of the sealing portion (3) close to the limiting portion, and the heating portion being communicatively connected to the controller (71).

7. The pipeline sealing device according to claim 1, characterized in that: The pipeline sealing device further includes a fastener (8), and the monitoring component further includes a buzzer (72). The buzzer (72) is arranged on the body (2) or the fastener (8), and the buzzer (72) is communicatively connected to the controller (71).

8. A pipeline sealing method, characterized in that: A method for sealing a pipe connection using the pipe sealing device according to any one of claims 1 to 7 comprises: Detect whether there is gas leakage in the pipeline; When a gas leak is detected in the pipeline, the leak sensor sends a signal to the controller; After receiving the signal, the controller controls the pipeline sealing device to start the sealing process; The controller controls the fluid delivery pump to start, and the fluid delivery pump pumps fluid into the sealing part, causing the sealing part to expand and cover the surface of the delivery pipeline, thereby blocking the leakage point on the delivery pipeline; After the pipeline sealing device completes sealing, the controller controls the pipeline sealing device to stop.

9. The pipeline sealing method according to claim 8, characterized in that: The steps for controlling the pipeline sealing device to start the sealing process include: Control the buzzer to start; The control fluid delivery pump starts.

10. The pipeline sealing method according to claim 8, characterized in that: The steps for controlling the shutdown of the pipe sealing device after the pipe sealing device completes sealing include: Obtaining the internal pressure of the sealing part; Compare the internal pressure of the sealing part with the pressure threshold, and determine whether to control the fluid delivery pump to stop according to the comparison result; If the internal pressure of the sealing part is greater than or equal to the pressure threshold, the fluid delivery pump is controlled to stop, and the buzzer is controlled to stop; If the internal pressure of the sealing portion is lower than the pressure threshold, the fluid delivery pump is controlled to continue to operate.

11. The pipeline sealing method according to claim 8, characterized in that: The steps for controlling the shutdown of the pipe sealing device after the pipe sealing device completes sealing include: When no leaking gas is detected; Control the fluid delivery pump to stop and control the buzzer to stop.

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