Sheathed explosive shockwave cable de-icing device

Abstract

The application discloses a sheath type explosion shock wave cable deicing device, and aims to provide a sheath type explosion shock wave cable deicing device which is suitable for radially deicing thick ice on an overhead cable, has good deicing effect and is not easy to damage the overhead cable. The sheath type explosion shock wave cable deicing device comprises a sheath assembly, the sheath assembly comprises an inner sheath and an outer sheath, a space surrounded by the inner sheath forms a cable passing channel, a cable passes through the cable passing channel, a space surrounded by the inner sheath and the outer sheath forms a closed detonation inner cavity, an outer surface of the outer sheath is provided with a plurality of sheath holes which are connected with the detonation inner cavity, an ice breaking sealing plug is arranged in the sheath hole, the ice breaking sealing plug seals the sheath hole, and the ice breaking sealing plug can be separated from the sheath hole; and an initiating device is arranged in the detonation inner cavity.

Description

Technical Field

[0001] This invention relates to a cable de-icing device, specifically a sheathed type explosive shock wave cable de-icing device. Background Technology

[0002] Traditional methods for de-icing overhead cables typically involve striking the ice to break it apart. This approach is not only inefficient but also requires considerable force to remove the ice, which can easily damage the cable. Furthermore, this method is often ineffective for thick layers of ice on overhead cables, making it difficult to remove even the thickest ice deposits.

[0003] To address the shortcomings of traditional knocking de-icing methods, some inventors have developed cable de-icing devices. Currently, cable de-icing devices generally use vibration or impact to de-ic overhead cables. However, vibration de-icing is not effective at removing thick layers of ice from overhead cables, while impact de-icing can easily damage the overhead cables. Summary of the Invention

[0004] The purpose of this invention is to provide a sheathed explosive shock wave cable de-icing device suitable for radial de-icing of thick ice accumulating on overhead cables, with good de-icing effect and low risk of damaging the overhead cables.

[0005] The technical solution of this invention is: A sheathed explosion shock wave cable de-icing device includes: The sheath assembly includes an inner sheath and an outer sheath. The space enclosed by the inner sheath forms a cable passage through which the cable passes. The space enclosed between the inner and outer sheaths forms a sealed detonation cavity. The outer surface of the outer sheath is provided with several sheath holes that communicate with the detonation cavity. An ice-breaking sealing plug is provided inside the sheath holes. The ice-breaking sealing plug seals the sheath holes and can be separated from the sheath holes. The detonation device is installed inside the detonation cavity.

[0006] In practical applications, before the arrival of freezing weather, the sheathed explosive shock wave cable de-icing device of this solution is installed on the cable by passing the overhead cable through the cable passage of the sheath assembly. When the ice covers the sheath assembly of the overhead cable (after the ice reaches a certain thickness), the detonation device is activated. Because the overhead cable is wrapped in the inner sheath and the outer sheath has several holes, the heat, debris, and shock wave generated by the detonation device in the sealed detonation chamber are blocked by the inner sheath, preventing burns and damage to the overhead cable from high-speed flying debris. At the same time, the heat, debris, and shock wave in the detonation chamber will break open the ice-breaking seal on the sheath hole. The high-speed airflow will drive the ice-breaking seal outward, impacting and penetrating the solid ice layer attached to the outer sheath, thus breaking most of the ice layer into small pieces that fall directly from the outer surface of the sheath. The remaining ice fragments can be easily removed from the overhead line by gentle tapping. In this way, thick ice on the overhead cable can be effectively removed, with good de-icing effect, and the overhead cable can be protected from damage by the shock wave of the explosion, making it less likely to damage the overhead cable. On the other hand, the sheathing assembly can also isolate overhead cables from icing, reducing the damage of icing to overhead lines.

[0007] Preferably, the sheath assembly also includes a cable passage formed on the inner and outer sheaths, the cable passage extending along the length of the cable passage and connected to the cable passage. Thus, the overhead cable can enter the cable passage through the cable passage, allowing the overhead cable to pass through the cable passage of the sheath assembly, thereby installing the sheathed explosive shock wave cable de-icing device on the cable.

[0008] Preferably, several sheath support ribs are provided between the inner and outer sheaths to connect them. This facilitates the connection between the inner and outer sheaths, so that when the detonating device detonates in the sealed detonation cavity, the ice-breaking seals on each hole of the outer sheath are subjected to a large impact, breaking open the ice-breaking seals and causing the solid ice layer to break evenly into small pieces that fall directly from the outer surface of the sheath.

[0009] Preferably, the detonation device includes a detonation casing, a detonation source, a battery, a wirelessly controlled electronic ignition device, and a remote controller for controlling the electronic ignition device. The detonation source, battery, and electronic ignition device are all located inside the detonation casing. The battery and electronic ignition device are connected via a power cord. The electronic ignition device is used to ignite the detonation source, which is located between the battery and the electronic ignition device. Because the detonation source is located between the battery and the electronic ignition device, the heat, debris, and shock wave generated after the detonation will move at high speed in all directions, thereby disconnecting the power cord connecting the battery and the electronic ignition device, thus cutting off the power supply to the electronic ignition device. This eliminates the conditions for secondary ignition of the electronic ignition device and prevents the risk of a fire caused by the casing falling from the overhead power line after use.

[0010] Preferably, both ends of the inner and outer sheaths are provided with annular sealing end caps, which also have cable notches for the cable to pass through. This facilitates actual production and manufacturing.

[0011] Preferably, the annular sealing end cap is bonded to the inner and outer sheaths. This facilitates actual production.

[0012] Preferably, the end of the ice-breaking sealing plug facing the outer side of the outer sheath is conical. In this way, after the detonation device detonates in the sealed detonation cavity, it facilitates the outward ejection of the ice-breaking sealing plug, which impacts and penetrates the solid ice layer attached to the outside of the outer sheath.

[0013] Preferably, the outer surface of the ice-breaking sealing plug is provided with an annular groove, and the edge of the sheath hole is engaged in the annular groove. This facilitates the installation of the ice-breaking sealing plug in the sheath hole, allowing the ice-breaking sealing plug to seal the sheath hole. At the same time, after the detonation device is activated, the ice-breaking sealing plug can be ejected outward from the sheath hole under the impact.

[0014] Preferably, the inner sheath and outer sheath are integrated, and both are made of thermoplastic polyurethane elastomer rubber. Thermoplastic polyurethane elastomer rubber has high strength and elasticity, high impact resistance, high fatigue resistance and vibration resistance, and excellent wear resistance, which is 2-10 times that of natural rubber; it has good low-temperature resistance, with low-temperature brittleness below approximately -30℃ or -70℃; it has good airtightness; and after detonation by the initiating device, it can effectively prevent burns and damage to overhead cables from high-speed flying debris.

[0015] Preferably, both the inner and outer sheaths have circular cross-sections. This facilitates the passage of overhead cables through the cable routing channels of the sheath assembly, allowing the sheathed explosive shock wave cable de-icing device to be installed on the cable.

[0016] The beneficial effects of this invention are: it is suitable for radial de-icing of thick ice accumulating on overhead cables, and the de-icing effect is good and it is not easy to damage the overhead cables. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a sheathed explosion shock wave cable de-icing device according to a specific embodiment of the present invention.

[0018] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle.

[0020] Figure 4 This is a schematic diagram of the detonation device according to a specific embodiment two of the present invention.

[0021] In the picture: Sheath assembly 1, inner sheath 1.1, outer sheath 1.2, cable passage 1.3, detonation cavity 1.4, cable passage 1.5, sheath hole 1.6, ice-breaking sealing plug 1.7, annular groove 1.71, annular sealing end cap 1.8, cable notch 1.9, sheath support rib 1.10; 2. Detonation device, 2.1. Detonation casing, 2.2. Detonation source, 2.3. Electronic ignition device, 2.4. Battery, 2.5. Power cord. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Specific Implementation Example 1, such as Figure 1 , Figure 2 , Figure 3 As shown, a sheathed de-icing device for explosive shockwave cables includes an initiating device and a sheath assembly 1. The sheath assembly includes an inner sheath 1.1 and an outer sheath 1.2. The space enclosed by the inner sheath forms a cable passage 1.3. The cable passes through the cable passage. The space enclosed between the inner and outer sheaths forms a sealed detonation cavity 1.4. The outer surface of the outer sheath has several sheath holes 1.6 communicating with the detonation cavity. Ice-breaking sealing plugs 1.7 are provided in the sheath holes. Each ice-breaking sealing plug corresponds to one of the sheath holes. The ice-breaking sealing plug seals the sheath hole and can be separated from the sheath hole. The initiating device is disposed inside the detonation cavity. The initiating device is a wireless remote-controlled initiating device or a wired initiating device. In this embodiment, the specific detonation method and structure of the detonating device are existing technologies. The specific detonation method and structure are not the inventive point of this application. Therefore, this application will not elaborate on conventional technical means such as the specific detonation method and structure of the detonating device.

[0023] The actual use of the sheathed explosive shock wave cable de-icing device in this embodiment is as follows. Before the arrival of freezing weather, the overhead cable is passed through the cable passage of the sheath assembly, thereby installing the sheathed explosive shock wave cable de-icing device on the cable. When the ice covers the sheath assembly of the overhead cable (after the ice reaches a certain thickness), the detonation device is activated. Because the overhead cable is wrapped in the inner sheath and the outer sheath has several holes, the heat, debris, and shock wave generated by the detonation device in the sealed detonation chamber are blocked by the inner sheath, preventing burns and damage to the overhead cable from high-speed flying debris. At the same time, the heat, debris, and shock wave in the detonation chamber will break open the ice-breaking seal on the sheath hole. The high-speed airflow will drive the ice-breaking seal outward, impacting and penetrating the solid ice layer attached to the outer sheath, thus breaking most of the ice layer into small pieces that fall directly from the outer surface of the sheath. The remaining ice fragments can be easily removed from the overhead line by gentle tapping. In this way, thick ice on the overhead cable can be effectively removed, with good de-icing effect, and the overhead cable can be protected from damage by the shock wave of the explosion, making it less likely to damage the overhead cable. On the other hand, the sheathing assembly can also isolate overhead cables from icing, reducing the damage of icing to overhead lines.

[0024] In this embodiment, the holes in the outer sheath are evenly distributed on the outer surface of the outer sheath, with adjacent rows of holes staggered. Thus, when the detonating device detonates within the sealed detonation chamber, the high-speed airflow propels the ice-breaking sealing plug outwards, facilitating the breaking of the ice layer and causing small pieces of ice to fall directly from the outer surface of the sheath. Furthermore, in actual use, the ice thickness can be assessed based on freezing weather conditions, allowing for adjustments to the number of detonating devices. Thicker ice layers require more devices within the detonation chamber, thereby enhancing the shockwave's ability to shatter thicker ice layers.

[0025] Furthermore, such as Figure 1 , Figure 2 As shown, the sheath assembly also includes a cable passage 1.5 formed on the inner and outer sheaths. The cable passage extends along the length of the cable passage and is connected to the cable passage. Thus, the overhead cable can enter the cable passage through the cable passage, allowing the overhead cable to pass through the cable passage of the sheath assembly, thereby installing the sheathed explosive shock wave cable de-icing device on the cable.

[0026] Furthermore, such as Figure 1 , Figure 2As shown, several sheath support ribs 1.10 are provided between the inner and outer sheaths to connect them. These support ribs are evenly distributed between the inner and outer sheaths. This facilitates the connection between the inner and outer sheaths. When the detonating device detonates in the sealed detonation cavity, the ice-breaking seals on each hole of the outer sheath are subjected to a significant impact, breaking open the seals and causing the ice layer to break uniformly into small pieces that fall directly from the outer surface of the sheath.

[0027] Furthermore, such as Figure 1 , Figure 2 As shown, the end of the ice-breaking sealing plug 1.7 facing the outer side of the outer sheath is conical. In this way, after the detonation device detonates in the sealed detonation cavity, it facilitates the ice-breaking sealing plug to be ejected outward, impacting and penetrating the solid ice layer attached to the outside of the outer sheath.

[0028] Furthermore, such as Figure 1 , Figure 2 , Figure 3 As shown, the outer surface of the ice-breaking sealing plug 1.7 is provided with an annular groove 1.71, and the edge of the sheath hole is engaged in the annular groove. In this way, it is convenient for the ice-breaking sealing plug to be installed in the sheath hole, so that the ice-breaking sealing plug seals the sheath hole. At the same time, after the detonation device is detonated, the ice-breaking sealing plug can be ejected outward from the sheath hole under the impact.

[0029] Furthermore, both the inner and outer sheaths are made of thermoplastic polyurethane elastomer rubber. Thermoplastic polyurethane elastomer rubber possesses high strength and elasticity, high impact resistance, high fatigue resistance and vibration resistance, and excellent wear resistance, which is 2-10 times that of natural rubber. It also has good low-temperature resistance, with low-temperature brittleness below approximately -30℃ or -70℃; good airtightness; and after detonation by the initiating device, it can effectively prevent burns and damage to overhead cables from high-speed flying debris.

[0030] Of course, the inner and outer sheaths can also be made of rubber or plastic.

[0031] Furthermore, such as Figure 1 As shown, the inner sheath and outer sheath are integrated. Both the inner and outer sheaths have circular cross-sections. Both ends of the inner and outer sheaths are open, and each end is equipped with an annular sealing end cap 1.8. The annular sealing end caps seal the openings at both ends of the inner and outer sheaths, creating a sealed detonation cavity within the space between them. The annular sealing end caps also have cable notches 1.9 for cable passage, located at both ends of the cable passage opening. The overhead cable can enter the cable passage channel through the cable passage opening and cable notches, allowing the overhead cable to pass through the cable passage channel of the sheath assembly.

[0032] In this embodiment, the annular sealing end cap is bonded to the inner and outer sheaths. This facilitates actual production and manufacturing. Furthermore, after the detonation device is activated, the annular sealing end cap can be separated from the sheath, allowing the icicles at both ends of the inner and outer sheaths to detach. Specifically, the inner and outer sheaths are sealed at both ends with annular sealing end caps, forming a rain-like effect. Rainwater or dew adheres to the outer surface of the sheath, condenses into water droplets, and under the influence of gravity, gathers at the lowest end of the sheath. After accumulating to a certain size, the droplets fall. When the temperature reaches freezing point, they condense into icicles at both ends of the sheath. However, the icicles at both ends are separate and will not condense on the wire due to the isolation effect of the sheath. After the explosion, both ends of the sheath move away from the wire, causing the icicles at both ends to detach.

[0033] In this second specific embodiment, the remaining structure is the same as in the first specific embodiment, except that... like Figure 4 As shown, the detonating device 2 includes a detonating casing 2.1, a detonating source 2.2, a battery 2.4, a wirelessly controlled electronic ignition device 2.3, and a remote controller for controlling the electronic ignition device. The detonating source, battery, and electronic ignition device are all located inside the detonating casing. The battery and electronic ignition device are connected via a power cord 2.5, with the battery providing power to the electronic ignition device. In this embodiment, the power cord and electronic ignition device are electrically connected together via a detachable male-female plug. The electronic ignition device is used to detonate the detonating source. The detonating source is located between the battery and the electronic ignition device. In this embodiment, the remote controller is a wireless radio frequency remote controller, the electronic ignition device is a wireless radio frequency controlled electronic ignition device, and the detonating source is a firecracker; however, the remote controller can also be other wireless remote controllers, the electronic ignition device can also be other wireless electronic ignition devices, and the detonating source can also be other detonating sources. Since the detonation source is located between the battery and the electronic ignition device, the heat, debris and shock wave generated after the detonation source is activated will move at high speed in all directions, thereby disconnecting the power line connecting the battery and the electronic ignition device, that is, disconnecting the power supply to the electronic ignition device, thus cutting off the conditions for secondary ignition of the electronic ignition device and preventing the problem of accidental fire caused by the sheath falling from the overhead line after use.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A sheathed type explosion shock wave cable de-icing device, characterized in that, include: The sheath assembly includes an inner sheath and an outer sheath. The space enclosed by the inner sheath forms a cable passage through which the cable passes. The space enclosed between the inner and outer sheaths forms a sealed detonation cavity. The outer surface of the outer sheath is provided with several sheath holes that communicate with the detonation cavity. An ice-breaking sealing plug is provided inside the sheath holes. The ice-breaking sealing plug seals the sheath holes and can be separated from the sheath holes. The detonation device is installed inside the detonation cavity.

2. The sheathed type explosion shock wave cable de-icing device according to claim 1, characterized in that, The sheath assembly also includes a cable passage formed on the inner sheath and the outer sheath, the cable passage extending along the length of the cable passage and connected to the cable passage.

3. The sheathed type explosion shock wave cable de-icing device according to claim 1, characterized in that, The inner sheath and the outer sheath are provided with a number of sheath support ribs that connect the inner sheath and the outer sheath.

4. The sheathed type explosion shock wave cable de-icing device according to claim 1, 2, or 3, characterized in that, The detonation device includes a detonation casing, a detonation source, a battery, a wirelessly controlled electronic ignition device, and a remote controller for controlling the electronic ignition device. The detonation source, battery, and electronic ignition device are all located inside the detonation casing. The battery and electronic ignition device are connected by a power cord. The electronic ignition device is used to detonate the detonation source, which is located between the battery and the electronic ignition device.

5. The sheathed type explosion shock wave cable de-icing device according to claim 1, 2, or 3, characterized in that, The inner and outer sheaths are provided with annular sealing end caps at both ends, and the annular sealing end caps are also provided with cable notches for the cable to pass through.

6. The sheathed type explosion shock wave cable de-icing device according to claim 5, characterized in that, The annular sealing end cap is bonded to the inner and outer sheaths.

7. The sheathed type explosion shock wave cable de-icing device according to claim 1, 2, or 3, characterized in that, The end of the ice-breaking sealing plug facing the outer side of the outer sheath is tapered.

8. The sheathed type explosion shock wave cable de-icing device according to claim 1, 2, or 3, characterized in that, The outer side of the ice-breaking sealing plug is provided with an annular groove, and the edge of the sheath hole is engaged in the annular groove.

9. The sheathed type explosion shock wave cable de-icing device according to claim 1, 2, or 3, characterized in that, The inner sheath and the outer sheath are integrated, and both the inner and outer sheaths are made of thermoplastic polyurethane elastomer rubber.

10. The sheathed type explosion shock wave cable de-icing device according to claim 1, 2, or 3, characterized in that, Both the inner and outer sheaths have circular cross-sections.

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