A method and system for filling control of an explosion-proof filling material of a high-voltage cable intermediate joint

Abstract

The application discloses a kind of high-voltage cable intermediate joint explosion-proof filling material filling control method and system, the present application includes the error degree between initial optimal filling height and actual filling height is calculated, and whether error degree is in the preset error range is judged, and generation judgment result;Based on the judgment result, the target optimal filling height is determined, and the filling time corresponding to the target optimal filling height is determined as the optimal vibration time;Based on the target optimal filling height and optimal vibration time, the filling control information of explosion-proof filling material in high-voltage cable intermediate joint is determined.The technical problem that the existing gas lock can cause filling material to be uniformly filled in the inside of intermediate joint is solved.The present application realizes the optimal filling degree of high-voltage cable intermediate joint by adopting the control and implementation method of high-voltage cable intermediate joint explosion-proof filling material filling degree, and reduces the formation of gas lock in filling process, which can improve the operation stability of cable.

Description

Technical Field

[0001] This invention relates to the field of high-voltage cable intermediate joint technology, and in particular to a method and system for controlling the filling of explosion-proof filling material in high-voltage cable intermediate joints. Background Technology

[0002] In recent years, urban power grids have placed increasingly higher demands on both the demand for and quality of electricity, making the use of power cables an inevitable choice. However, with the increase in the use of power cables, cable system failures have also increased, with over 90% of these accidents caused by faulty intermediate joints. A failure in a high-voltage cable intermediate joint can lead to serious electrical accidents such as breakdown or even explosion. To reduce the hazards caused by explosions in high-voltage cable intermediate joints, explosion-proof filler material can be filled inside the copper shell of the joint.

[0003] However, insulating glue is usually used to fill the joints of high-voltage cables. However, when an arc breakdown and explosion occurs at the joint, the insulating glue not only fails to extinguish the arc, but may even decompose under the action of electrothermal heat, making the explosion more violent and posing a safety hazard.

[0004] Therefore, existing technologies use inorganic insulating materials to fill the inside of high-voltage cable joints to extinguish arcs in a timely manner. However, during the filling process of the inorganic insulating materials used in the above methods, when the fine-particle solid filler is filled into the joint, the gas is difficult to escape due to the very small gaps between the particles. This causes the gas to be trapped between the particles, forming an airlock. The airlock may prevent the filler material from being evenly filled into the inside of the joint. Summary of the Invention

[0005] This invention provides a method and system for controlling the filling of explosion-proof filler material in high-voltage cable intermediate joints. It solves the technical problem that when existing fine-particle solid filler materials are filled into the interior of intermediate joints, the gas is difficult to escape due to the very small gaps between the particles. This causes the gas to be trapped between the particles, forming an airlock, which may prevent the filler material from being uniformly filled into the interior of the intermediate joint.

[0006] The first aspect of this invention provides a method for controlling the filling of explosion-proof filling material in a high-voltage cable intermediate joint, relating to a high-voltage cable intermediate joint, wherein the outermost layer of the high-voltage cable intermediate joint is provided with a copper shell, and a filling hole is formed on the copper shell; an integral prefabricated component is provided in the middle of the high-voltage cable intermediate joint; the method includes: In response to a received filling control request, the filling data of the high-voltage cable intermediate joint corresponding to the filling control request is obtained; Based on the material volume, joint length, copper shell radius, and prefabricated component radius in the filling data, the initial optimal filling height of the high-voltage cable intermediate joint is determined; Calculate the error between the initial optimal fill height and the actual fill height, determine whether the error is within a preset error range, and generate a judgment result; Based on the judgment result, the target optimal filling height is determined, and the filling time corresponding to the target optimal filling height is determined as the optimal vibration time; Based on the target optimal filling height and the optimal vibration time, the filling control information of the explosion-proof filling material in the high-voltage cable intermediate joint is determined.

[0007] Optionally, the method also involves a vibration platform and a control console, the vibration platform being connected to the control console via a transmission line; the method includes: The high-voltage cable intermediate joint is placed on the vibration platform; The explosion-proof filling material is poured into the interior of the copper shell through the filling hole; The vibration platform is controlled by the control console to vibrate so that the explosion-proof filling material inside the copper shell is evenly filled in multiple directions. The first measurement data is generated by measuring the radius of the copper shell, the radius of the prefabricated component, the volume of the explosion-proof filling material, and the length of the intermediate joint of the high-voltage cable. The filling time, actual filling height, and vibration time of the vibration platform of the explosion-proof filling material are measured to generate second measurement data; Using the first measurement data and the second measurement data, fill data is generated.

[0008] Optionally, the step of determining the initial optimal filling height of the high-voltage cable intermediate joint based on the material volume, joint length, copper shell radius, and prefabrication radius in the filling data includes: Assume that the volume of the explosion-proof filling material and the preset optimal filling height satisfy the preset height-volume calculation formula; the preset height-volume calculation formula is: h 预优 =f(v) In the formula, h 预优 The preset optimal filling height is given; v represents the volume of the explosion-proof filling material. The copper shell and the integral prefabricated component are respectively equivalent to a first cylinder and a second cylinder, and the explosion-proof filling material is located between the first cylinder and the second cylinder; Obtain the copper shell radius, preform radius, material volume, and joint length from the filling data; The filling area is calculated using the material volume and the joint length; Calculate the first difference between the preset optimal fill height and the radius of the copper shell; Based on the preset height threshold, the preset optimal filling height, and the judgment relationship between the copper shell radius and the prefabricated component radius, the initial optimal filling height of the high-voltage cable intermediate joint is calculated using the filling area, the first difference, the copper shell radius, and the prefabricated component radius; wherein, the calculation formula for the initial optimal filling height is:

[0009] In the formula, 0 h is the preset height threshold. 预优 To preset the optimal fill height, Let the radius be the copper shell. For the radius of the precast component, h The first difference, S This represents the area to be filled.

[0010] Optionally, the step of calculating the error between the initial optimal fill height and the actual fill height, determining whether the error is within a preset error range, and generating a determination result includes: Calculate the error between the initial optimal fill height and the actual fill height; Determine whether the error is within a preset error range; If so, then the current initial optimal fill height will be determined as the target optimal fill height; If not, continue pouring explosion-proof filling material into the intermediate joint of the high-voltage cable and control the vibration platform to vibrate continuously; Calculate the current initial optimal fill height and actual fill height, and then proceed to the step of calculating the error between the initial optimal fill height and the actual fill height.

[0011] Optionally, the step of determining the target optimal filling height based on the judgment result, and determining the filling time corresponding to the target optimal filling height as the optimal vibration time, includes: When the judgment result indicates that the error is within the preset error range, the current initial optimal fill height is determined as the target optimal fill height. The filling time corresponding to the optimal filling height is determined as the optimal vibration time.

[0012] Optionally, the step of determining the filling control information of the explosion-proof filling material in the high-voltage cable intermediate joint based on the target optimal filling height and the optimal vibration time includes: Obtain the vibration frequency and amplitude of the vibration platform corresponding to the optimal vibration time during the filling process; Using the vibration frequency, vibration amplitude, and optimal vibration time of the vibration platform, filling control information for the explosion-proof filling material in the intermediate joint of the high-voltage cable is generated.

[0013] The second aspect of this invention provides a filling control system for explosion-proof filling material of a high-voltage cable intermediate joint, wherein the outermost layer of the high-voltage cable intermediate joint is provided with a copper shell, and a filling hole is formed on the copper shell; an integral prefabricated component is provided in the middle of the high-voltage cable intermediate joint; the system includes: The filling data module is used to obtain the filling data of the high-voltage cable intermediate joint corresponding to the received filling control request in response to the filling control request. The initial optimal filling height module is used to determine the initial optimal filling height of the high-voltage cable intermediate joint based on the material volume, joint length, copper shell radius, and prefabrication radius in the filling data. The judgment result module is used to calculate the error between the initial optimal fill height and the actual fill height, determine whether the error is within a preset error range, and generate a judgment result. The optimal vibration time module is used to determine the target optimal filling height based on the judgment result, and to determine the filling time corresponding to the target optimal filling height as the optimal vibration time; The filling control information module is used to determine the filling control information of the explosion-proof filling material in the high-voltage cable intermediate joint based on the target optimal filling height and the optimal vibration time.

[0014] Optionally, the system also includes a vibration platform and a control console, the vibration platform being connected to the control console via a transmission line; the system further includes: A placement submodule is used to place the high-voltage cable intermediate joint on the vibration platform; A filling submodule is used to pour the explosion-proof filling material into the interior of the copper shell through the filling hole; The vibration submodule is used to control the vibration platform to vibrate via the console, so that the explosion-proof filling material inside the copper shell is uniformly filled in multiple directions; The first measurement submodule is used to measure the radius of the copper shell, the radius of the prefabricated component, the volume of the explosion-proof filling material, and the length of the intermediate joint of the high-voltage cable, and generate the first measurement data. The second measurement submodule is used to measure the filling time, actual filling height and vibration time of the explosion-proof filling material and the vibration time of the vibration platform, and generate second measurement data. The data filling submodule is used to generate data filling data using the first measurement data and the second measurement data.

[0015] The third aspect of the present invention provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor causes the processor to perform the steps of the high-voltage cable intermediate joint explosion-proof filling material filling control method as described in any of the preceding claims.

[0016] The fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed, it implements the method for controlling the filling of explosion-proof filling material for high-voltage cable intermediate joints as described in any of the preceding claims.

[0017] As can be seen from the above technical solutions, the present invention has the following advantages: This invention employs a method for controlling and achieving the filling degree of explosion-proof filler material in high-voltage cable joints. The method involves filling the space between the copper shell and the prefabricated component of the high-voltage cable joint with the explosion-proof filler material using a vibration table. Under specific vibration frequency and amplitude conditions, the optimal vibration time can be determined. Following this optimal vibration time, the filling height of the explosion-proof filler material is rapidly increased to the optimal level, achieving the optimal filling degree of the high-voltage cable joint. This also reduces the formation of airlocks during the filling process, thereby improving the operational stability of the cable. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A flowchart illustrating the steps of a method for controlling the filling of explosion-proof filling material in a high-voltage cable intermediate joint, provided in Embodiment 1 of the present invention; Figure 2 A flowchart illustrating the steps of a method for controlling the filling of explosion-proof filling material in a high-voltage cable intermediate joint, provided in Embodiment 2 of the present invention; Figure 3 A schematic diagram of the structure of a high-voltage cable intermediate joint provided in Embodiment 2 of the present invention; Figure 4 A schematic diagram of a high-voltage cable intermediate joint modified with an acrylic plate is provided in Embodiment 2 of the present invention; Figure 5 A schematic diagram of the connection between a vibration platform and a control console is provided in Embodiment 2 of the present invention; Figure 6 A schematic diagram of the internal structure of a high-voltage cable intermediate joint provided in Embodiment 2 of the present invention; Figure 7 This is a structural block diagram of a high-voltage cable intermediate joint explosion-proof filling material filling control system provided in Embodiment 3 of the present invention.

[0020] The meanings of the reference numerals in the attached figures are as follows: 1. Copper shell; 2. Filling hole; 3. Filling layer; 4. Integral prefabricated component; 5. Acrylic sheet; 6. Vibration platform; 7. Transmission line; 8. Control console. Detailed Implementation

[0021] This invention provides a method and system for controlling the filling of explosion-proof filler material in high-voltage cable intermediate joints. It addresses the technical problem that when existing fine-particle solid filler materials are filled into the interior of intermediate joints, the gas is difficult to escape due to the very small gaps between the particles. This causes the gas to be trapped between the particles, forming an airlock, which may prevent the filler material from being uniformly filled into the interior of the intermediate joint.

[0022] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0023] Please see Figure 1 , Figure 1 This is a flowchart illustrating the steps of a method for controlling the filling of explosion-proof filling material in a high-voltage cable intermediate joint, as provided in Embodiment 1 of the present invention.

[0024] This invention provides a method for controlling the filling of explosion-proof filling material in high-voltage cable intermediate joints. The high-voltage cable intermediate joint has a copper shell 1 on its outermost layer, and a filling hole 2 is formed on the copper shell 1. An integral prefabricated component 4 is located in the middle of the high-voltage cable intermediate joint. The method includes the following steps: Step 101: In response to the received filling control request, obtain the filling data of the high-voltage cable intermediate joint corresponding to the filling control request.

[0025] It should be noted that the filling data refers to multiple data measured during the experiment when the explosion-proof filling material is poured from the filling hole 2 into the high-voltage cable intermediate joint, including the material volume of the explosion-proof filling material, the joint length of the high-voltage cable intermediate joint, the radius of the copper shell 1, and the radius of the integral prefabricated component 4.

[0026] In practice, when a filling control request is received, multiple filling data of the high-voltage cable intermediate joint corresponding to the filling control request are obtained, including the material volume of the explosion-proof filling material, the joint length of the high-voltage cable intermediate joint, the radius of the copper shell 1, and the radius of the integral prefabricated component 4.

[0027] Step 102: Based on the material volume, joint length, copper shell radius, and prefabrication radius in the filling data, determine the initial optimal filling height for the high-voltage cable intermediate joint.

[0028] It should be noted that the material volume refers to the volume of the explosion-proof filling material, the joint length refers to the length of the intermediate joint of the high-voltage cable, the copper shell radius refers to the inner radius of the copper shell 1, and the prefabricated component radius refers to the radius of the integral prefabricated component 4.

[0029] In practical implementation, the required filling area of ​​the explosion-proof filling material is calculated by applying the material volume and joint length. Then, the difference or sum between the copper shell radius and the prefabricated component radius is compared with the preset initial optimal filling height. Based on the comparison results, the initial optimal filling height is calculated by applying the filling area, copper shell radius, prefabricated component radius, and the difference between the preset initial optimal filling height and the copper shell radius.

[0030] Step 103: Calculate the error between the initial optimal fill height and the actual fill height, and determine whether the error is within the preset error range, and generate the judgment result.

[0031] It should be noted that the preset error range is 5%.

[0032] In practice, the error between the initial optimal filling height and the actual filling height is calculated. If the error is less than or equal to 5%, the current optimal filling height is taken as the target optimal filling height. Otherwise, the explosion-proof filling material needs to be poured into the intermediate joint of the high-voltage cable.

[0033] Step 104: Based on the judgment result, determine the optimal filling height of the target, and determine the filling time corresponding to the optimal filling height of the target as the optimal vibration time.

[0034] It should be noted that the judgment result is an error margin of less than or equal to 5%.

[0035] In practice, when the error is less than or equal to 5%, the current optimal filling height is determined as the target optimal filling height, and the current filling time is determined as the optimal vibration time.

[0036] Step 105: Based on the target optimal filling height and optimal vibration time, determine the filling control information of the explosion-proof filling material in the intermediate joint of the high-voltage cable.

[0037] It should be noted that the filling control information refers to the optimal vibration time, vibration frequency, and vibration amplitude corresponding to the optimal filling height, so as to better control the vibration frequency and vibration amplitude of the vibration platform 6 next time, quickly vibrate the explosion-proof filling material poured into the high-voltage cable intermediate joint to make it fill evenly, and quickly reach the target optimal filling height.

[0038] In practice, the vibration frequency and amplitude of the vibration platform 6 corresponding to the optimal vibration time, as well as the target optimal filling height, are used and recorded as the filling control information of the explosion-proof filling material in the intermediate joint of the high-voltage cable.

[0039] Please see Figure 2-6 , Figure 2 This is a flowchart illustrating the steps of a method for controlling the filling of explosion-proof filling material in a high-voltage cable intermediate joint, as provided in Embodiment 2 of the present invention.

[0040] This invention provides a method for controlling the filling of explosion-proof filling material in high-voltage cable intermediate joints, comprising the following steps: Optionally, a vibration platform 6 and a control console 8 are also involved, with the vibration platform 6 connected to the control console 8 via a transmission line 7; prior to implementing step 201, this method further includes the following steps S11-S16: S11. Place the high-voltage cable intermediate joint on the vibration platform 6; S12. Pour the explosion-proof filling material into the copper shell 1 through the filling hole 2; S13. The vibration platform 6 is controlled by the control console 8 to vibrate so that the explosion-proof filling material inside the copper shell 1 is evenly filled in multiple directions. S14. Measure the radius of the copper shell 1, the radius of the prefabricated component 4, the volume of the explosion-proof filling material, and the length of the high-voltage cable intermediate joint to generate the first measurement data. S15. Measure the filling time of the explosion-proof filling material, the actual filling height, and the vibration time of the vibration platform 6 to generate the second measurement data; S16. Using the first measurement data and the second measurement data, generate fill data.

[0041] It should be noted that, for reference Figures 3-4 As shown, explosion-proof filler material is poured into the high-voltage cable intermediate joint through the filler hole 2, and is located in the filler layer 3 between the integral prefabricated component 4 and the copper shell 1. To facilitate observation of the internal filling height and filling condition of the high-voltage cable intermediate joint, the high-voltage cable intermediate joint is modified by opening 100mm holes at the front, back, and top of the high-voltage cable intermediate joint. A 50mm window, fitted with an acrylic plate 5 to ensure mechanical strength, is used to observe the filling height of the filling material.

[0042] It is worth mentioning that the explosion-proof filling material is a fixed insulating material with a small particle size. It is poured into the interior of the high-voltage cable intermediate joint and is located in the filling layer 3 between the integral prefabricated part 4 and the copper shell 1. It is used to reduce the impact on the copper shell 1 when the intermediate joint explodes. Specifically, the filling layer 3 can combine the plasma generated when the cable intermediate joint explodes, thereby reducing the impact of the plasma on the outer protective shell.

[0043] See Figure 5 As shown, the vibration platform 6 is connected to the control console 8 via the transmission line 7. The control console 8 controls the vibration platform 6 to vibrate up and down and left and right to ensure that the explosion-proof filling material is filled evenly in all directions.

[0044] In practice, the high-voltage cable intermediate joint is placed on the vibration platform 6, and the explosion-proof filling material is poured into the copper shell 1 through the filling hole 2. Before turning on the vibration platform 6, relevant parameters such as vibration frequency, vibration amplitude, and vibration duration are set on the control console 8. Then, the control console 8 is turned on so that the vibration platform 6 drives the high-voltage cable intermediate joint to vibrate, ensuring that the explosion-proof filling material inside the copper shell 1 is evenly filled in all directions. The vibration frequency of the vibration platform 6 is adjustable from 0Hz to 100Hz, the vibration amplitude is adjustable from 0mm to 200mm, and the vibration duration is adjustable from 0 to 99999s.

[0045] Specifically, before the experiment, the radius of the copper shell 1, the radius of the prefabricated component 4, the volume of the explosion-proof filling material, and the joint length of the high-voltage cable intermediate joint were measured to obtain the first measurement data.

[0046] During the experiment, the filling time of the explosion-proof filling material, the actual filling height, and the vibration time of the vibration platform 6 were measured to generate the second set of measurement data.

[0047] The filling data is obtained by combining the first and second measurement data.

[0048] Step 201: In response to the received filling control request, obtain the filling data of the high-voltage cable intermediate joint corresponding to the filling control request.

[0049] In this embodiment of the invention, the specific implementation of step 201 is similar to that of step 101, and will not be described again here.

[0050] Step 202: Based on the material volume, joint length, copper shell radius, and prefabrication radius in the filling data, determine the initial optimal filling height for the high-voltage cable intermediate joint.

[0051] Optionally, step 202 includes the following steps S21-S26: S21. Assume that the volume of the explosion-proof filling material and the preset optimal filling height satisfy the preset height-volume calculation formula; the preset height-volume calculation formula is: h 预优 =f(v) In the formula, h 预优 The preset optimal filling height is given; v represents the volume of the explosion-proof filling material. S22. The copper shell 1 and the integral prefabricated part 4 are respectively equivalent to the first cylinder and the second cylinder, and the explosion-proof filling material is located between the first cylinder and the second cylinder. S23. Obtain the copper shell radius, preform radius, material volume, and joint length from the filling data; S24. Calculate the filling area using the material volume and joint length; S25. Calculate the first difference between the preset optimal fill height and the copper shell radius; S26. Based on the preset height threshold, the preset optimal filling height, and the judgment relationship between the copper shell radius and the prefabricated component radius, the initial optimal filling height of the high-voltage cable intermediate joint is calculated using the filling area, the first difference, the copper shell radius, and the prefabricated component radius; wherein, the formula for calculating the initial optimal filling height is:

[0052] In the formula, 0 h is the preset height threshold. 预优 To preset the optimal fill height, Let the radius of the copper shell be 1. For the radius of the precast component, h The first difference, S This represents the area to be filled.

[0053] It should be noted that, assuming the filler material is completely flat after filling a certain volume, the preset optimal fill height is h. 预优 Its volume, together with that of the explosion-proof filling material, satisfies the following formula: h 预优 =f(v)(1) In the formula, h 预优 To preset the optimal fill height, v Let be the volume of the material.

[0054] The copper shell 1 and the integral prefabricated component 4 inside the high-voltage cable intermediate joint are equivalent to two cylinders, respectively designated as the first cylinder and the second cylinder (e.g., Figure 6 As shown), the filling layer 3 is disposed between the first cylinder and the second cylinder, h 预优 The calculation can be performed in the following ways: (2) (3) In equations (2)-(3), 0 h is the preset height threshold. 预优 To preset the optimal fill height, S For the area to be filled, Let be the radius of the first cylinder, which is also the radius of the copper shell. The radius of the second cylinder is the radius of the precast component. v Let h be the material volume, and h be the first difference between the preset optimal filling height and the radius of the copper shell.

[0055] Using equations (2)-(3) above, the initial optimal filling height h can be calculated for a given material volume. 初优 Wherein, the initial optimal fill height h 初优 To preset the optimal fill height h 预优 The specific value.

[0056] Step 203: Calculate the error between the initial optimal fill height and the actual fill height, and determine whether the error is within the preset error range, and generate the judgment result.

[0057] Optionally, step 203 includes the following steps S31-S35: S31. Calculate the error between the initial optimal fill height and the actual fill height; S32. Determine whether the error rate is within the preset error range; S33. If so, then the current initial optimal fill height is determined as the target optimal fill height; S34. If not, continue to pour explosion-proof filling material into the high-voltage cable intermediate joint and control the vibration platform 6 to vibrate continuously. S35. Calculate the current initial optimal fill height and actual fill height, and then jump to the step of calculating the error between the initial optimal fill height and the actual fill height.

[0058] It should be noted that an equation is defined to represent the initial optimal fill height h. 初优 and actual fill height h 实 The error between them is expressed by the equation: (4) (5) In the formula, Indicates the initial optimal fill height h 初优 and actual fill height h 实 The degree of error between them e Represents the natural base. τ h represents the time constant. 初优Initial optimal fill height, h 实 This represents the actual fill height.

[0059] In practical implementation, an experiment is conducted first. The vibration frequency of the vibration platform 6 is set to 50Hz, and the vibration amplitude is 100mm. After vibrating for a period of time... t After that, I received At this time, we can conclude that... .

[0060] After a certain volume of explosion-proof filling material is poured into the intermediate joint of the high-voltage cable, the initial optimal filling height h is calculated using equations (2)-(3). 初优 And observe the actual filling height h from point 5 of the acrylic sheet. 实 .

[0061] When h is satisfied 初优 =h 实 Then vibration is not required, but when or Then vibration is required.

[0062] The vibration frequency of vibration platform 6 was set to 50Hz, and the vibration amplitude was 100mm. After a certain vibration time, observations were made, and the error was calculated using equation (4). When the error degree When the error is ≤5%, the current initial optimal filling height is considered as reaching the target optimal filling height, and the filling time obtained at this time is the optimal vibration time. Check the actual situation to see if it is necessary to continue pouring explosion-proof filling material into the high-voltage cable joint. If so, continue filling and control the vibration platform 6 to vibrate continuously. If not, directly control the vibration platform 6 to continue vibrating until the error is within acceptable limits. ≤5%.

[0063] Step 204: When the judgment result is that the error is within the preset error range, the current initial optimal fill height is determined as the target optimal fill height.

[0064] It should be noted that when the error degree When the percentage is ≤5%, the current initial optimal fill height will be determined as the target optimal fill height.

[0065] Step 205: Determine the filling time corresponding to the target optimal filling height as the optimal vibration time.

[0066] It should be noted that when the error degree When the percentage is ≤5%, the filling time corresponding to the optimal filling height is the optimal vibration time.

[0067] Step 206: Based on the target optimal filling height and optimal vibration time, determine the filling control information of the explosion-proof filling material in the intermediate joint of the high-voltage cable.

[0068] Optionally, step 206 includes the following steps S41-S42: S41. Obtain the vibration frequency and vibration amplitude of the vibration platform 6 corresponding to the optimal vibration time during the filling process; S42. Using the vibration frequency, vibration amplitude, and optimal vibration time of vibration platform 6, generate filling control information for the explosion-proof filling material in the intermediate joint of the high-voltage cable.

[0069] It should be noted that the vibration frequency and amplitude of the vibration platform 6 corresponding to the optimal vibration time during the filling process are obtained. For example, the vibration frequency of the vibration platform 6 corresponding to the optimal vibration time is 50Hz and the vibration amplitude is 100mm. The optimal vibration time, vibration frequency of 50Hz, vibration amplitude of 100mm, preset material volume, and target optimal filling are used as the filling control information for the explosion-proof filling material in the intermediate joint of high-voltage cable. According to the above information, the filling speed, angle, vibration frequency, etc. are adjusted to ensure that the explosion-proof filling material can be evenly distributed and to minimize the formation of airlock, so as to achieve the optimal filling state of the explosion-proof filling material and improve the explosion-proof effect.

[0070] Please see Figure 7 , Figure 7 This is a structural block diagram of a high-voltage cable intermediate joint explosion-proof filling material filling control system provided in Embodiment 3 of the present invention.

[0071] This invention provides a filling control system for explosion-proof filling material of high-voltage cable intermediate joints. The system relates to high-voltage cable intermediate joints, wherein the outermost layer of the high-voltage cable intermediate joint is provided with a copper shell 1, and a filling hole 2 is formed on the copper shell 1. An integral prefabricated component 4 is provided in the middle of the high-voltage cable intermediate joint. The system includes: The filling data module 701 is used to obtain the filling data of the high-voltage cable intermediate joint corresponding to the received filling control request in response to the filling control request. The initial optimal filling height module 702 is used to determine the initial optimal filling height of the high-voltage cable intermediate joint based on the material volume, joint length, copper shell radius and prefabrication radius in the filling data; The judgment result module 703 is used to calculate the error between the initial optimal fill height and the actual fill height, and to determine whether the error is within the preset error range, and generate a judgment result; The optimal vibration time module 704 is used to determine the optimal filling height of the target based on the judgment result, and to determine the filling time corresponding to the optimal filling height of the target as the optimal vibration time; The filling control information module 705 is used to determine the filling control information of the explosion-proof filling material in the intermediate joint of the high-voltage cable based on the target optimal filling height and optimal vibration time.

[0072] Optionally, the system also includes a vibration platform 6 and a control console 8, with the vibration platform 6 connected to the control console 8 via a transmission line 7; the system also includes: A placement submodule is used to place the high-voltage cable intermediate joint on the vibration platform 6; The filling submodule is used to pour the explosion-proof filling material into the copper shell 1 through the filling hole 2; The vibration submodule is used to control the vibration platform 6 to vibrate via the console 8, so that the explosion-proof filling material inside the copper shell 1 is evenly filled in multiple directions. The first measurement submodule is used to measure the copper shell radius of the copper shell 1, the prefabricated component radius of the integral prefabricated component 4, the material volume of the explosion-proof filling material, and the joint length of the high-voltage cable intermediate joint, and generate the first measurement data. The second measurement submodule is used to measure the filling time of the explosion-proof filling material, the actual filling height, and the vibration time of the vibration platform 6, and generate the second measurement data. The data filling submodule is used to generate data filling data using the first measurement data and the second measurement data.

[0073] Optionally, the initial optimal fill height module 702 includes: The calculation formula submodule is used to ensure that the material volume of the explosion-proof filling material and the preset optimal filling height satisfy the preset height-volume calculation formula; the preset height-volume calculation formula is: h 预优 =f(v) In the formula, h 预优 The preset optimal filling height is given; v represents the volume of the explosion-proof filling material. An equivalent submodule is used to equate the copper shell 1 and the integral prefabricated part 4 to a first cylinder and a second cylinder, respectively, with the explosion-proof filling material located between the first cylinder and the second cylinder. The joint length submodule is used to obtain the copper shell radius, preform radius, material volume, and joint length from the fill data; The fill area submodule is used to calculate the fill area using material volume and joint length; The first difference submodule is used to calculate the first difference between the preset optimal fill height and the copper shell radius; The initial optimal fill height submodule is used to calculate the initial optimal fill height of the high-voltage cable intermediate joint based on the judgment relationship between a preset height threshold, a preset optimal fill height, the copper shell radius, and the prefabricated component radius, using the fill area, the first difference, the copper shell radius, and the prefabricated component radius. The formula for calculating the initial optimal fill height is as follows:

[0074] In the formula, 0 h is the preset height threshold. 预优 To preset the optimal fill height, Let the radius of the copper shell be 1. For the radius of the precast component, h The first difference, S This represents the area to be filled.

[0075] Optionally, the judgment result module 703 includes: The error calculation submodule is used to calculate the error between the initial optimal fill height and the actual fill height. The preset error range submodule is used to determine whether the error is within the preset error range; The target optimal fill height submodule is used to determine the current initial optimal fill height as the target optimal fill height if the condition is met. The control submodule is used to continuously pour explosion-proof filling material into the high-voltage cable intermediate joint if not, and to control the vibration platform 6 to vibrate continuously. Jump to the execution submodule, which is used to calculate the current initial optimal fill height and actual fill height, and then jump to the execution step of calculating the error between the initial optimal fill height and the actual fill height.

[0076] Optionally, the optimal vibration time module 704 includes: The current initial optimal fill height submodule is used to determine the current initial optimal fill height as the target optimal fill height when the judgment result is that the error is within the preset error range; The optimal vibration time submodule is used to determine the filling time corresponding to the target optimal filling height as the optimal vibration time.

[0077] Optionally, the fill control information module 705 includes: The acquisition submodule is used to acquire the vibration frequency and vibration amplitude of the vibration platform 6 corresponding to the optimal vibration time during the filling process; The filling control information submodule is used to generate filling control information for the explosion-proof filling material in the intermediate joint of the high-voltage cable by using the vibration frequency, vibration amplitude and optimal vibration time of the vibration platform 6.

[0078] Embodiment 4 of the present invention also provides an electronic device, including a memory and a processor, wherein the memory stores a computer program; when the computer program is executed by the processor, the processor performs the steps of the high-voltage cable intermediate joint explosion-proof filling material filling control method as described in any of the above embodiments.

[0079] Embodiment 5 of the present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed, it implements the high-voltage cable intermediate joint explosion-proof filling material filling control method as described in any of the above embodiments.

[0080] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0081] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0082] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0083] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0084] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0085] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling the filling of explosion-proof filler material in a high-voltage cable intermediate joint, characterized in that, The invention relates to a high-voltage cable intermediate joint, a vibration platform, and a control console. The outermost layer of the high-voltage cable intermediate joint is provided with a copper shell, and a filling hole is formed in the copper shell. An integral prefabricated component is provided in the middle of the high-voltage cable intermediate joint. The vibration platform is connected to the control console via a transmission line. The method includes: The high-voltage cable intermediate joint is placed on the vibration platform; The explosion-proof filling material is poured into the interior of the copper shell through the filling hole; The vibration platform is controlled by the control console to vibrate so that the explosion-proof filling material inside the copper shell is evenly filled in multiple directions. The first measurement data is generated by measuring the radius of the copper shell, the radius of the prefabricated component, the volume of the explosion-proof filling material, and the length of the intermediate joint of the high-voltage cable. The filling time, actual filling height, and vibration time of the vibration platform of the explosion-proof filling material are measured to generate second measurement data; Using the first measurement data and the second measurement data, fill data is generated; In response to a received filling control request, the filling data of the high-voltage cable intermediate joint corresponding to the filling control request is obtained; Based on the material volume, joint length, copper shell radius, and prefabricated component radius in the filling data, the initial optimal filling height of the high-voltage cable intermediate joint is determined; Calculate the error between the initial optimal fill height and the actual fill height, determine whether the error is within a preset error range, and generate a judgment result; Based on the judgment result, the target optimal filling height is determined, and the filling time corresponding to the target optimal filling height is determined as the optimal vibration time; Based on the target optimal filling height and the optimal vibration time, the filling control information of the explosion-proof filling material in the high-voltage cable intermediate joint is determined; The step of calculating the error between the initial optimal fill height and the actual fill height, determining whether the error is within a preset error range, and generating a determination result includes: Calculate the error between the initial optimal fill height and the actual fill height; Determine whether the error is within a preset error range; If so, then the current initial optimal fill height will be determined as the target optimal fill height; If not, continue pouring explosion-proof filling material into the intermediate joint of the high-voltage cable and control the vibration platform to vibrate continuously; Calculate the current initial optimal fill height and actual fill height, and then proceed to the step of calculating the error between the initial optimal fill height and the actual fill height.

2. The method for controlling the filling of explosion-proof filling material in high-voltage cable intermediate joints according to claim 1, characterized in that, The step of determining the initial optimal filling height of the high-voltage cable intermediate joint based on the material volume, joint length, copper shell radius, and prefabricated component radius in the filling data includes: Assume that the volume of the explosion-proof filling material and the preset optimal filling height satisfy the preset height-volume calculation formula; the preset height-volume calculation formula is: h 预优 =f(v) In the formula, h 预优 The preset optimal filling height is given; v represents the volume of the explosion-proof filling material. The copper shell and the integral prefabricated component are respectively equivalent to a first cylinder and a second cylinder, and the explosion-proof filling material is located between the first cylinder and the second cylinder; Obtain the copper shell radius, preform radius, material volume, and joint length from the filling data; The filling area is calculated using the material volume and the joint length; Calculate the first difference between the preset optimal fill height and the radius of the copper shell; Based on the preset height threshold, the preset optimal filling height, and the judgment relationship between the copper shell radius and the prefabricated component radius, the initial optimal filling height of the high-voltage cable intermediate joint is calculated using the filling area, the first difference, the copper shell radius, and the prefabricated component radius; wherein, the calculation formula for the initial optimal filling height is: In the formula, 0 h is the preset height threshold. 预优 To preset the optimal fill height, Let the radius be the copper shell. For the radius of the precast component, h The first difference, S This represents the area to be filled.

3. The method for controlling the filling of explosion-proof filling material in high-voltage cable intermediate joints according to claim 1, characterized in that, The step of determining the target optimal filling height based on the judgment result, and determining the filling time corresponding to the target optimal filling height as the optimal vibration time, includes: When the judgment result indicates that the error is within the preset error range, the current initial optimal fill height is determined as the target optimal fill height. The filling time corresponding to the optimal filling height is determined as the optimal vibration time.

4. The method for controlling the filling of explosion-proof filling material in high-voltage cable intermediate joints according to claim 1, characterized in that, The step of determining the filling control information of the explosion-proof filling material in the high-voltage cable intermediate joint based on the target optimal filling height and the optimal vibration time includes: Obtain the vibration frequency and amplitude of the vibration platform corresponding to the optimal vibration time during the filling process; Using the vibration frequency, vibration amplitude, and optimal vibration time of the vibration platform, filling control information for the explosion-proof filling material in the intermediate joint of the high-voltage cable is generated.

5. A control system for filling explosion-proof filling material in high-voltage cable intermediate joints, characterized in that, The system relates to a high-voltage cable intermediate joint, a vibration platform, and a control console. The outermost layer of the high-voltage cable intermediate joint is provided with a copper shell, and a filling hole is formed in the copper shell. An integral prefabricated component is located in the middle of the high-voltage cable intermediate joint. The vibration platform is connected to the control console via a transmission line. The system includes: The filling data module is used to obtain the filling data of the high-voltage cable intermediate joint corresponding to the received filling control request in response to the filling control request. The initial optimal filling height module is used to determine the initial optimal filling height of the high-voltage cable intermediate joint based on the material volume, joint length, copper shell radius, and prefabrication radius in the filling data. The judgment result module is used to calculate the error between the initial optimal filling height and the actual filling height, and to determine whether the error is within a preset error range, generating a judgment result. The step of calculating the error between the initial optimal filling height and the actual filling height, determining whether the error is within a preset error range, and generating a judgment result includes: calculating the error between the initial optimal filling height and the actual filling height; determining whether the error is within a preset error range; if yes, determining the current initial optimal filling height as the target optimal filling height; if no, continuously pouring explosion-proof filling material into the high-voltage cable intermediate joint and controlling the vibration platform to vibrate continuously; calculating the current initial optimal filling height and the actual filling height, and then jumping to execute the step of calculating the error between the initial optimal filling height and the actual filling height. The optimal vibration time module is used to determine the target optimal filling height based on the judgment result, and to determine the filling time corresponding to the target optimal filling height as the optimal vibration time; The filling control information module is used to determine the filling control information of the explosion-proof filling material in the high-voltage cable intermediate joint based on the target optimal filling height and the optimal vibration time. A placement submodule is used to place the high-voltage cable intermediate joint on the vibration platform; A filling submodule is used to pour the explosion-proof filling material into the interior of the copper shell through the filling hole; The vibration submodule is used to control the vibration platform to vibrate via the console, so that the explosion-proof filling material inside the copper shell is uniformly filled in multiple directions; The first measurement submodule is used to measure the radius of the copper shell, the radius of the prefabricated component, the volume of the explosion-proof filling material, and the length of the intermediate joint of the high-voltage cable, and generate the first measurement data. The second measurement submodule is used to measure the filling time, actual filling height and vibration time of the explosion-proof filling material and the vibration time of the vibration platform, and generate second measurement data. The data filling submodule is used to generate data filling data using the first measurement data and the second measurement data.

6. An electronic device, characterized in that, The device includes a memory and a processor. The memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the high-voltage cable intermediate joint explosion-proof filling material filling control method as described in any one of claims 1-4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed, it implements the method for controlling the filling of explosion-proof filling material for high-voltage cable intermediate joints as described in any one of claims 1-4.

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