Coal slurry pipeline leakage monitoring device based on digital twinning

Abstract

The utility model relates to the technical field of pipeline leakage monitoring, in particular to a coal slurry pipeline leakage monitoring device based on digital twinning, which comprises a first coal slurry pipeline and a second coal slurry pipeline. A pressure monitoring mechanism is installed above the first coal slurry pipeline, a reinforcing supporting mechanism is arranged below the pressure monitoring mechanism, and when the coal slurry pipeline leakage monitoring device based on digital twinning is used, butt joint installation of a first annular clamping ring and a second annular clamping ring is matched with the locking effect of related bolt assemblies; by means of the clamping ring mechanism, the welding short pipe in the device can achieve the pre-positioning locking effect through the clamping ring mechanism before welding, then the phenomenon that the welding position of the welding short pipe deviates in the welding process is not prone to occurring on the basis that the welding short pipe is limited and supported, the overall structural design is ingenious, and the using effect is good.

Description

Technical Field

[0001] This utility model relates to the field of pipeline leakage monitoring technology, and in particular to a coal slurry pipeline leakage monitoring device based on digital twins. Background Art

[0002] A digital twin is a virtual model of a physical object in the real world. It is synchronized with the physical object through real-time data, sensor information and other relevant data to reflect its state, behavior and performance. In a coal slurry pipeline leakage monitoring device, a digital twin can reflect the operating status of the coal slurry pipeline in real time, including key parameters such as flow rate and pressure, so that monitoring personnel can detect abnormalities in time and take measures quickly. A pressure transmitter is a commonly used pressure monitoring device.

[0003] Because existing pressure transmitters are usually installed directly on the pipeline by welding, their support force points are singular, and their position is generally stabilized by manual support during welding installation, resulting in poor overall installation accuracy. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned problems by proposing a coal slurry pipeline leakage monitoring device based on digital twin. It improves the existing pressure transmitter, which is usually installed on the pipeline by welding. Its support force point is single, and its position is usually stabilized by manual support during welding installation, resulting in poor overall installation accuracy.

[0005] A digital twin-based coal slurry pipeline leakage monitoring device includes a first coal slurry pipeline and a second coal slurry pipeline: the first coal slurry pipeline is located on the side of the second coal slurry pipeline, a flow monitoring mechanism is connected and installed between the first coal slurry pipeline and the second coal slurry pipeline, a pressure monitoring mechanism is installed above the first coal slurry pipeline, and a reinforcement support mechanism is provided below the pressure monitoring mechanism.

[0006] The flow monitoring mechanism includes a flow meter and a flange assembly. The flow meter is located in the middle of the first coal slurry pipeline and the second coal slurry pipeline, and two sets of flange assemblies are installed on both sides of the flow meter. The first set of flange assemblies is connected to the first coal slurry pipeline, and the second set of flange assemblies is connected to the second coal slurry pipeline.

[0007] Preferably, the pressure monitoring mechanism includes a welded short pipe, a shut-off valve, a bend, and a pressure transmitter. A welded short pipe is welded to the outer wall of the top end of the first coal slurry pipeline. A shut-off valve is installed on the outer wall of the top end of the welded short pipe. A bend is installed at the upper end of the shut-off valve. A pressure transmitter is installed at the upper end of the bend.

[0008] Preferably, the reinforcing support mechanism includes a support bar, a first annular retaining ring, and a second annular retaining ring. The support bar is symmetrically arranged on the outer side wall near the bottom of the welded short pipe. The outer side wall of the support bar away from the welded short pipe is connected to the outer side wall of the first annular retaining ring. The second annular retaining ring is installed below the first annular retaining ring. Both the first and second annular retaining rings are sleeved on the outside of the first coal slurry pipe. Both the first and second annular retaining rings are configured as "Ω" shapes.

[0009] Preferably, the bottom outer walls of both the first and second annular retaining rings at the connection end are symmetrically provided with two sets of threaded mounting grooves.

[0010] Preferably, a fastening bolt is threadedly installed inside the threaded mounting groove of the first annular retaining ring, and a nut block is fitted to the bottom outer wall of the second annular retaining ring located at the threaded mounting groove, and the fastening bolt and the nut block are threadedly connected.

[0011] Preferably, friction pads are embedded in the inner side walls of both the first and second annular retaining rings, and the outer side walls of the friction pads are in contact with the outer side walls of the first coal slurry pipe.

[0012] Preferably, an auxiliary support seat is provided on the outer side wall of the first annular retaining ring away from the support bar. The bottom outer wall of the auxiliary support seat is in contact with the top outer wall of the first coal slurry pipe. A positioning support seat is provided on the top outer wall of the auxiliary support seat. The positioning support seat is T-shaped. A small axial flow fan is installed on the top outer wall of the positioning support seat. The air outlet of the small axial flow fan faces the bend pipe. The air outlet of the small axial flow fan is configured as a filter screen structure. A filter screen cover is fitted and installed on the outer side wall of the small axial flow fan located at the air inlet end.

[0013] The beneficial effects of this utility model are:

[0014] 1. When in use, the digital twin-based coal slurry pipeline leakage monitoring device, through the docking installation of the first and second annular retaining rings and the locking effect of related bolt components, enables the welded short pipe in the device to achieve a pre-positioning and locking effect through the retaining ring mechanism before welding. This not only limits and supports the welded short pipe but also prevents the welding position from shifting during the welding process. Furthermore, by embedding friction pads inside the first and second annular retaining rings, the friction pads enhance the contact friction between the device and the outer wall of the coal slurry pipeline, thereby further strengthening the positioning stability of the retaining ring assembly. The overall structure is ingeniously designed and has good performance.

[0015] 2. When this digital twin-based coal slurry pipeline leakage monitoring device is in use, the temperature of the fluid inside the coal slurry pipeline will rise due to friction and other reasons. High temperature will affect the working accuracy of the pressure transmitter. Therefore, by using an axial flow fan to cool the bend, the coal slurry liquid inside the bend can be effectively cooled. This reduces the pipeline temperature, improves the measurement accuracy of the pressure transmitter, and ensures the reliability of the data. At the same time, the fluidity of the cooled coal slurry is improved, further reducing the deposition and blockage in the pipeline. The overall structure design is simple and the practical effect is good. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the flow monitoring mechanism of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the pressure monitoring mechanism of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged 3D structural diagram at point A;

[0020] Figure 5 This is a three-dimensional structural diagram of the installation of the small axial flow fan of this utility model.

[0021] In the diagram: 1. First coal slurry pipeline; 2. Second coal slurry pipeline; 3. Flow monitoring mechanism; 31. Flow meter; 32. Flange assembly; 4. Pressure monitoring mechanism; 41. Welded short pipe; 42. Shut-off valve; 43. Bend; 44. Pressure transmitter; 5. Reinforcing support mechanism; 51. Support bar; 52. First annular retaining ring; 53. Second annular retaining ring; 54. Threaded mounting groove; 55. Fastening bolt; 56. Nut block; 57. Friction pad; 61. Auxiliary support seat; 62. Positioning support seat; 63. Small axial flow fan; 64. Filter screen cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 are within the scope of protection of the present invention.

[0023] In practical implementation: such as Figure 1-5As shown, a digital twin-based coal slurry pipeline leakage monitoring device includes a first coal slurry pipeline 1 and a second coal slurry pipeline 2: the first coal slurry pipeline 1 is located on the side of the second coal slurry pipeline 2, a flow monitoring mechanism 3 is connected and installed between the first coal slurry pipeline 1 and the second coal slurry pipeline 2, a pressure monitoring mechanism 4 is installed above the first coal slurry pipeline 1, and a reinforcement support mechanism 5 is provided below the pressure monitoring mechanism 4.

[0024] The flow monitoring mechanism 3 includes a flow meter 31 and a flange assembly 32. The flow meter 31 is located in the middle of the first coal slurry pipeline 1 and the second coal slurry pipeline 2. Two sets of flange assemblies 32 are installed on both sides of the flow meter 31. The first set of flange assemblies 32 is connected to the first coal slurry pipeline 1, and the second set of flange assemblies 32 is connected to the second coal slurry pipeline 2.

[0025] The arrangement of the two flange assemblies 32 here facilitates the installation of the flow meter 31 at the midpoint between the first coal slurry pipe 1 and the second coal slurry pipe 2. The flow meter 31 is set up to help identify abnormal flow conditions by measuring the flow rate of the fluid in the pipe in real time. For example, if the flow rate in the pipe suddenly drops, it may be due to a liquid leak causing a reduction in flow. In addition, if the flow meter 31 detects inconsistencies or fluctuations in the flow, it may also indicate a leak or blockage problem.

[0026] The pressure monitoring mechanism 4 includes a welded short pipe 41, a shut-off valve 42, a bend 43 and a pressure transmitter 44. The welded short pipe 41 is welded and installed on the outer wall of the top end of the first coal slurry pipeline 1. The shut-off valve 42 is installed on the outer wall of the top end of the welded short pipe 41. The bend 43 is installed at the upper end of the shut-off valve 42. The pressure transmitter 44 is installed at the upper end of the bend 43.

[0027] The short welded pipe 41 here is a fixed connection component of the pressure transmitter 44, used to connect the pressure transmitter 44 to the first coal slurry pipeline 1; the shut-off valve 42 is used to control the flow of fluid, and can quickly cut off or open the flow of liquid. When the pressure transmitter 44 needs to be repaired or replaced, the shut-off valve 42 can quickly cut off the flow of fluid to ensure safety and prevent leakage; since the coal slurry contains solid particles and water, condensation may occur in the measuring pipeline of the pressure transmitter 44, which will affect the measurement accuracy and normal operation of the equipment. Therefore, the function of the bend 43 here is to form a low point in the pipeline, so that the liquid can accumulate here, thereby preventing the liquid from directly entering the pressure transmitter 44, thus protecting the pressure transmitter 44 and extending its service life; the pressure transmitter 44 is set to monitor the coal slurry liquid pressure inside the first coal slurry pipeline 1 in real time.

[0028] The reinforcing support mechanism 5 includes a support bar 51, a first annular retaining ring 52, and a second annular retaining ring 53. Support bars 51 are symmetrically arranged on the outer side wall of the welded short pipe 41 near its bottom end. The outer side wall of the support bar 51 away from the welded short pipe 41 is connected to the outer side wall of the first annular retaining ring 52. The second annular retaining ring 53 is installed below the first annular retaining ring 52, and both the first and second annular retaining rings 52 and 53 are fitted onto the outside of the first coal slurry pipe 1. Both the first and second annular retaining rings 52 and 53 are shaped like an "Ω". The bottom outer walls of the first annular retaining ring 52 and the second annular retaining ring 53 at the connection end are symmetrically provided with two sets of threaded mounting grooves 54. The threaded mounting groove 54 of the first annular retaining ring 52 is threaded with a fastening bolt 55. The bottom outer wall of the second annular retaining ring 53 at the threaded mounting groove 54 is fitted with a nut block 56, and the fastening bolt 55 and the nut block 56 are threaded together. The inner side walls of the first annular retaining ring 52 and the second annular retaining ring 53 are embedded with friction pads 57, and the outer side wall of the friction pad 57 is fitted with the outer side wall of the first coal slurry pipe 1.

[0029] When the top of the first coal slurry pipe 1 is drilled according to the existing technology and the welded short pipe 41 is inserted into the hole, the support bar 51 will automatically move along the trajectory of the welded short pipe 41, so that the first annular retaining ring 52 on its side will be locked onto the outside of the first coal slurry pipe 1. After the first annular retaining ring 52 is adjusted to a suitable position, the second annular retaining ring 53 is locked onto the bottom of the first coal slurry pipe 1 from bottom to top. After the first annular retaining ring 52 and the second annular retaining ring 53 are aligned, the fastening bolt 55 is tightened from top to bottom through the two sets of threaded mounting grooves 54 and the corresponding nut block 56 to complete the fixed position of the welded short pipe 41. Then, the welded short pipe 41 is welded and installed onto the upper end of the first coal slurry pipe 1 according to the normal welding method. Here, the friction pad 57 achieves the effect of fixed position installation by increasing the contact friction between the first annular retaining ring 52 and the second annular retaining ring 53 and the outer wall of the first coal slurry pipe 1.

[0030] An auxiliary support seat 61 is provided on the outer side wall of the first annular retaining ring 52 away from the support bar 51. The bottom outer wall of the auxiliary support seat 61 is in contact with the top outer wall of the first coal slurry pipe 1. A positioning support seat 62 is provided on the top outer wall of the auxiliary support seat 61. The positioning support seat 62 is T-shaped. A small axial flow fan 63 is installed on the top outer wall of the positioning support seat 62. The air outlet of the small axial flow fan 63 faces the bend 43. The air outlet of the small axial flow fan 63 is set as a filter screen structure. A filter screen cover 64 is fitted on the outer side wall of the small axial flow fan 63 at the air inlet position.

[0031] The auxiliary support 61 here assists in the installation of the positioning support 62. The positioning support 62 is designed to facilitate the elevation of the small axial flow fan 63 so that it aligns with the bend 43. During production and transportation, the coal slurry is affected by mechanical agitation and ambient temperature, causing its temperature to rise. Especially during long-distance transportation or in closed pipelines, friction and flow resistance generate heat, keeping the coal slurry at a relatively high temperature. When this heated coal slurry enters the bend 43, it heats the bend 43 through heat transfer. When the bend needs to be adjusted... When 43 is used for auxiliary cooling, simply turn on the small axial flow fan 63. Once the small axial flow fan 63 is turned on, it will cool the bend 43 through air cooling. The filter screen 64 is designed so that the small axial flow fan 63 will not bring external dust into the device when it is taking in air. When it is necessary to clean the filter screen 64, simply pull it out from the side of the small axial flow fan 63. After cleaning, simply snap it back in. Note that there is a locking friction between the small axial flow fan 63 and the filter screen 64, so there is no need to worry about the filter screen 64 falling off when installed on the side of the small axial flow fan 63.

[0032] When using this utility model, please refer to the appendix to the instruction manual. Figure 1 As shown, the first coal slurry pipeline 1 and the second coal slurry pipeline 2 of this device are both equipped with docking flanges. When the device is actually installed in conjunction with the coal slurry pipeline, the entire device can be installed inside the coal slurry pipeline using these docking flanges. It should be noted that the entire device needs to be installed at both the inlet and outlet ends of the coal slurry pipeline to facilitate subsequent comparison and monitoring data to determine the leakage of the coal slurry pipeline.

[0033] The placement of the two flange assemblies 32 here facilitates the installation of the flow meter 31 at the midpoint between the first coal slurry pipeline 1 and the second coal slurry pipeline 2. The flow meter 31 is positioned to help identify abnormal flow conditions by measuring the flow rate of the fluid in the pipeline in real time.

[0034] The short welded pipe 41 here is a fixed connection component of the pressure transmitter 44, used to connect the pressure transmitter 44 to the first coal slurry pipeline 1; the shut-off valve 42 is used to control the flow of fluid, and can quickly cut off or open the flow of liquid. When the pressure transmitter 44 needs to be repaired or replaced, the shut-off valve 42 can quickly cut off the flow of fluid to ensure safety and prevent leakage; since the coal slurry contains solid particles and water, condensation may occur in the measuring pipeline of the pressure transmitter 44, which will affect the measurement accuracy and normal operation of the equipment. Therefore, the function of the bend 43 here is to form a low point in the pipeline, so that the liquid can accumulate here, thereby preventing the liquid from directly entering the pressure transmitter 44, thus protecting the pressure transmitter 44 and extending its service life; the pressure transmitter 44 is set to monitor the coal slurry liquid pressure inside the first coal slurry pipeline 1 in real time;

[0035] When the top of the first coal slurry pipe 1 is drilled according to existing technology and the welded short pipe 41 is inserted into the hole, the movement of the welded short pipe 41 will automatically drive the support bar 51 to move, causing the first annular retaining ring 52 on its side to engage with the outside of the first coal slurry pipe 1. After adjusting the first annular retaining ring 52 to a suitable position, the second annular retaining ring 53 is then engaged from bottom to top with the bottom of the first coal slurry pipe 1. Once the first annular retaining ring 52 and the second annular retaining ring 53 are aligned, the fastening bolt 55 is tightened from top to bottom through the two sets of threaded mounting grooves 54 and the corresponding nut blocks 56 to complete the fixing of the welded short pipe 41. Then, the welded short pipe 41 is welded and installed onto the upper end of the first coal slurry pipe 1 according to normal welding methods. Here, the friction pad 57 achieves the effect of fixing the installation by increasing the contact friction between the first annular retaining ring 52 and the second annular retaining ring 53 and the outer wall of the first coal slurry pipe 1.

[0036] The auxiliary support 61 here assists in the installation of the positioning support 62. The positioning support 62 is designed to facilitate the elevation of the small axial flow fan 63 so that it aligns with the bend 43. During production and transportation, the coal slurry is affected by mechanical agitation and ambient temperature, causing its temperature to rise. Especially during long-distance transportation or in closed pipelines, friction and flow resistance generate heat, keeping the coal slurry at a relatively high temperature. When this heated coal slurry enters the bend 43, it heats the bend 43 through heat transfer. When the bend needs to be adjusted... When 43 is used for auxiliary cooling, simply turn on the small axial flow fan 63. Once the small axial flow fan 63 is turned on, it will cool the bend 43 through air cooling. The filter screen 64 is designed so that the small axial flow fan 63 will not bring external dust into the device when it is taking in air. When it is necessary to clean the filter screen 64, simply pull it out from the side of the small axial flow fan 63. After cleaning, simply snap it back in. Note that there is a locking friction between the small axial flow fan 63 and the filter screen 64, so there is no need to worry about the filter screen 64 falling off when it is installed on the side of the small axial flow fan 63.

[0037] Furthermore, by comparing the monitoring values ​​of the flow meter 31 and pressure transmitter 44 at the inlet end of the coal slurry pipeline with the values ​​at the outlet end of the coal slurry pipeline, the leakage situation of the coal slurry pipeline can be directly understood. When the monitoring values ​​at the inlet and outlet ends of the coal slurry pipeline are within the safe fluctuation range, it indicates that the pipeline is intact and there is no leakage. When the monitoring values ​​at the inlet and outlet ends of the coal slurry pipeline are outside the safe fluctuation range, it indicates that there is a leakage problem in the pipeline and the staff needs to carry out timely inspection and maintenance.

[0038] It should be noted that the flow meter 31, pressure transmitter 44 and small axial flow fan 63 can be powered by existing operating techniques. Whether the power supply is provided by a power supply unit or by an external wire, it is all a conventional operating technique and will not be described in detail here.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A coal slurry pipeline leakage monitoring device based on digital twin, characterized in that, It includes a first coal slurry pipe (1) and a second coal slurry pipe (2): the first coal slurry pipe (1) is located on the side of the second coal slurry pipe (2), a flow monitoring mechanism (3) is connected between the first coal slurry pipe (1) and the second coal slurry pipe (2), a pressure monitoring mechanism (4) is installed above the first coal slurry pipe (1), and a reinforcing support mechanism (5) is provided below the pressure monitoring mechanism (4); The flow monitoring mechanism (3) includes a flow meter (31) and a flange assembly (32). The flow meter (31) is located in the middle of the first coal slurry pipeline (1) and the second coal slurry pipeline (2). Two sets of flange assemblies (32) are installed on both sides of the flow meter (31). The first set of flange assemblies (32) is connected to the first coal slurry pipeline (1), and the second set of flange assemblies (32) is connected to the second coal slurry pipeline (2).

2. The coal slurry pipeline leakage monitoring device based on digital twin according to claim 1, characterized in that: The pressure monitoring mechanism (4) includes a welded short pipe (41), a shut-off valve (42), a bend (43), and a pressure transmitter (44). The welded short pipe (41) is welded to the outer wall of the top end of the first coal slurry pipeline (1). The shut-off valve (42) is installed on the outer wall of the top end of the welded short pipe (41). The bend (43) is installed at the upper end of the shut-off valve (42). The pressure transmitter (44) is installed at the upper end of the bend (43).

3. The coal slurry pipeline leakage monitoring device based on digital twin according to claim 2, characterized in that: The reinforcement support mechanism (5) includes a support bar (51), a first annular retaining ring (52), and a second annular retaining ring (53). The support bar (51) is symmetrically arranged on the outer side wall near the bottom of the welded short pipe (41). The outer side wall of the support bar (51) away from the welded short pipe (41) is connected to the outer side wall of the first annular retaining ring (52). The second annular retaining ring (53) is installed below the first annular retaining ring (52). The first annular retaining ring (52) and the second annular retaining ring (53) are both sleeved and installed on the outside of the first coal slurry pipe (1). The first annular retaining ring (52) and the second annular retaining ring (53) are both set in the shape of "Ω".

4. The coal slurry pipeline leakage monitoring device based on digital twin according to claim 3, characterized in that: The bottom outer walls of the first annular retaining ring (52) and the second annular retaining ring (53) at the connection end are symmetrically provided with two sets of threaded mounting grooves (54).

5. A coal slurry pipeline leakage monitoring device based on digital twin according to claim 4, characterized in that: The first annular retaining ring (52) has a fastening bolt (55) installed inside the threaded mounting groove (54). The second annular retaining ring (53) has a nut block (56) fitted to the bottom outer wall of the threaded mounting groove (54), and the fastening bolt (55) and the nut block (56) are threaded together.

6. A coal slurry pipeline leakage monitoring device based on digital twin according to claim 5, characterized in that: The first annular retaining ring (52) and the second annular retaining ring (53) are both embedded with friction pads (57), and the outer side wall of the friction pads (57) is in contact with the outer side wall of the first coal slurry pipe (1).

7. A coal slurry pipeline leakage monitoring device based on digital twin according to claim 3, characterized in that: An auxiliary support seat (61) is provided on the outer side wall of the first annular retaining ring (52) away from the support bar (51). The bottom outer wall of the auxiliary support seat (61) is in contact with the top outer wall of the first coal slurry pipe (1). A positioning support seat (62) is provided on the top outer wall of the auxiliary support seat (61). The positioning support seat (62) is set in a "T" shape. A small axial flow fan (63) is installed on the top outer wall of the positioning support seat (62). The air outlet of the small axial flow fan (63) faces the bend (43). The air outlet of the small axial flow fan (63) is set as a filter screen structure. A filter screen cover (64) is fitted on the outer side wall of the small axial flow fan (63) located at the air inlet.

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