Heat dissipation device for underwater equipment

Abstract

The present application provides a heat dissipation device for underwater equipment that is applied to underwater equipment in an underwater communication system. The heat dissipation device includes a heat dissipation shell and a water seepage component, the heat dissipation shell is fitted on the outside of the underwater equipment and includes an outer wall casing, the outer wall casing has a cylindrical structure and a cross-sectional diameter of the outer wall casing is larger than that of the underwater equipment, the underwater equipment and the outer wall casing are installed coaxially, the water seepage component has a conical structure, the water seepage component is provided with a plurality of first water injection holes in an array, the water seepage component is installed on both ends of the heat dissipation shell, and the water seepage component is connected to the outer wall casing so as to form a heat dissipation chamber surrounded by the water seepage component, the shell of the underwater equipment and the outer wall casing. With the above structure, the heat dissipation efficiency of the underwater equipment buried in sediment in shallow water can be improved through the liquid in the heat dissipation chamber and the heat dissipation shell.

Description

[Technical field]

[0001] The present application relates to the field of heat dissipation technology, and in particular to a heat dissipation device for underwater equipment. [Background technology]

[0002] In the process of realizing long-distance communication, underwater communication systems are affected by the underwater topography of different regions, and the laying methods of photoelectric cables and underwater equipment are different in different regions. For example, photoelectric cables and underwater equipment located in shallow waters need to be buried at a depth of 3m or less on the seabed to reduce the impact of human activities and environmental organisms on the cables and equipment, but since there are fewer human activities and environmental organisms in deep waters, photoelectric cables and underwater equipment located in deep waters can be laid directly on the surface of the deep seabed.

[0003] Due to the precision of underwater communication systems and the limited design life, the operating temperature range of underwater equipment is relatively strict, and is always between 0 and 35 degrees Celsius. The water temperature in deep water is usually around 4 degrees Celsius, so even if heat is generated during the operation of underwater equipment, the operating temperature of the underwater equipment can be reduced by seawater.

[0004] However, in shallow waters, underwater equipment is buried in sediment, and the encasing of sediment reduces the heat dissipation efficiency of the underwater equipment. In addition, the temperature of the surface seawater changes with the seasons, and when the seawater temperature is high, it further affects the heat dissipation efficiency of the underwater equipment, affecting the normal operation of the underwater equipment. Summary of the Invention [Problem to be solved by the invention]

[0005] The present application provides a heat dissipation device for underwater equipment to solve the problem that the heat dissipation efficiency of underwater equipment (underwater equipment) located in shallow water in an underwater communication system is low, affecting normal operation of the underwater equipment. [Means for solving the problem]

[0006] In an embodiment of the present application, a heat dissipation device for underwater equipment is provided, which is applied to underwater equipment in an underwater communication system, the heat dissipation device includes a heat dissipation shell and a water-permeable component, the heat dissipation shell is fitted onto the outside of the underwater equipment, the heat dissipation shell includes an outer wall casing, the outer wall casing has a cylindrical structure, the cross-sectional diameter of the outer wall casing is larger than the cross-sectional diameter of the shell of the underwater equipment, the outer wall casing and the underwater equipment are installed coaxially, the water-permeable component has a conical structure, a plurality of first water-injection holes are provided in an array on the water-permeable component, the water-permeable component is installed on both ends of the heat dissipation shell, and the water-permeable component is connected to the outer wall casing so that a heat dissipation chamber is formed surrounded by the water-permeable component, the outer wall casing and the shell of the underwater equipment.

[0007] In this way, by fitting the heat dissipation shell and water-permeable components to the outside of the underwater equipment, the underwater equipment can be filled with liquid into the heat dissipation shell during construction, and the cooperation between the liquid and the casing increases the heat dissipation area of ​​the underwater equipment to improve the heat conduction efficiency, improve the heat dissipation efficiency when the underwater equipment is in operation, and improve the operating stability of the underwater communication system.

[0008] In one possible embodiment, the heat dissipation shell further includes a fixing bracket that is installed between the shell of the underwater equipment and the outer wall casing and is configured to support the heat dissipation chamber. In this way, the fixing bracket supports the heat dissipation chamber and improves the structural strength of the heat dissipation shell, thereby avoiding the problem of reduced heat dissipation efficiency caused by structural deformation.

[0009] In one possible embodiment, the fixing bracket includes at least one annular seat coaxially installed with the outer wall casing, the annular seat having an annular inner surface mating with the shell of the underwater equipment and an annular outer surface mating with the outer wall casing. In this way, the annular seat is installed between the shell of the underwater equipment and the outer wall casing to support the heat dissipation chamber formed by the heat dissipation shell and the water-permeable component, and to reduce the risk of structural deformation.

[0010] In one possible embodiment, the fixing bracket comprises three annular sheets arranged in an array between the shell of the underwater equipment and the outer wall casing, thus providing support to the heat dissipation shell and reducing the risk of the structure deforming under pressure.

[0011] In one possible embodiment, the annular sheet is provided with a plurality of water-permeable holes arranged in an array, and the diameter of the water-permeable holes is equal to or smaller than the diameter of the first water inlet hole. In this way, after the heat dissipation chamber is divided into multiple chambers by the plurality of annular sheets, the liquid can flow through the water-permeable holes, and the heat dissipation efficiency of the heat dissipation device for the underwater equipment can be further increased.

[0012] In one possible embodiment, the annular seat is provided with a friction material (friction part) installed between the annular inner surface and the shell of the underwater equipment, and the friction material is used to improve the friction force between the annular seat and the underwater equipment. By installing the friction material, the friction force between the annular seat and the underwater equipment is improved, thereby preventing the heat dissipation shell from slipping or falling off.

[0013] In one possible embodiment, the outer wall casing is provided with a fastening groove for fitting the annular sheet tightly to the outer wall casing, so that the annular sheet is fixed by fitting with the outer wall casing, and the fastening strength of the annular sheet is increased, and the structural strength of the heat dissipation device of the underwater equipment can be further improved.

[0014] In one possible embodiment, the fixing bracket includes a plurality of support columns arranged in an array, with a gap between two adjacent support columns, one end of the support column is joined to the casing, and the other end of the support column is in contact with the shell of the underwater equipment, thus realizing the function of supporting the heat dissipation chamber by the plurality of support columns, thereby reducing the risk of structural deformation.

[0015] In one possible embodiment, the heat dissipation shell and the water seepage component are both made of metal, which can increase the structural strength of the heat dissipation device of the underwater equipment, and metal has high thermal conductivity, improving the heat dissipation efficiency to the underwater equipment.

[0016] In one possible embodiment, the heat dissipation shell is provided with a plurality of second water inlet holes arranged in an array, and the diameter of the second water inlet holes is equal to or smaller than the diameter of the first water inlet hole. By providing the second water inlet holes in the heat dissipation shell, the water filling speed of the heat dissipation chamber can be improved, and the problem of insufficient water filling in the heat dissipation chamber can be avoided.

[0017] In one possible embodiment, the diameter of the first water injection hole is less than 5 mm and greater than 1 mm, thus reducing the occurrence of a situation in which a large amount of soil and sand enters the heat dissipation chamber during construction of the underwater equipment, and improving the heat dissipation efficiency of the underwater equipment. Effect of the Invention

[0018] As can be seen from the above solution, the present application provides a heat dissipation device for underwater equipment, which is applied to underwater equipment in an underwater communication system, and the heat dissipation device includes a heat dissipation shell and a water-permeable component. The heat dissipation shell is fitted to the outside of the underwater equipment, and includes an outer wall casing. is a cylindrical structure, the cross-sectional diameter of the outer wall casing is larger than that of the underwater equipment, the outer wall casing and the underwater equipment are installed coaxially, the water seepage component is a conical structure, the water seepage component is provided with a plurality of first water injection holes in an array, the water seepage component is installed at both ends of the heat dissipation shell, and the water seepage component is connected to the outer wall casing so as to form a heat dissipation chamber surrounded by the water seepage component, the shell of the underwater equipment and the outer wall casing. With the above structure, after the underwater equipment is buried, the heat generated by the operation of the underwater equipment can be dissipated through the liquid in the heat dissipation chamber and the heat dissipation shell, thereby improving the heat dissipation efficiency of the underwater equipment buried in sediment in shallow water. [Brief description of the drawings]

[0019] In order to explain the technical solutions of the present application more clearly, the following briefly introduces the drawings required in the embodiments, and it is obvious that those skilled in the art can obtain other drawings from these drawings without any creative efforts.

[0020] [Figure 1] FIG. 1 is a schematic structural diagram of an underwater communication system. [Diagram 2] 1 is a schematic cross-sectional view of a heat dissipation device for underwater equipment according to an embodiment of the present application. [Diagram 3] 1 is a schematic structural diagram of a water-permeable component in an embodiment of the present application. [Figure 4] 1 is a schematic cross-sectional view of a water-permeable component according to an embodiment of the present application. [Diagram 5] 1 is a schematic structural diagram of a heat dissipation device for underwater equipment according to an embodiment of the present application. [Figure 6] FIG. 2 is a schematic structural diagram of a heat dissipation device for another underwater equipment in an embodiment of the present application. [Figure 7] FIG. 13 is a schematic structural diagram of a heat dissipation device for still another underwater equipment in an embodiment of the present application. [Figure 8] FIG. 11 is a schematic cross-sectional view of a heat dissipation device for underwater equipment according to still another embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] The technical means of the present invention will be described below clearly and completely with reference to the embodiments, but obviously, the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without paying any creative effort, belong to the scope of protection of the present invention.

[0022] The terms "first" and "second" are merely for descriptive purposes and cannot be understood as indicating or implying a relative importance or implying the number of technical features indicated. Thus, a feature qualified as "first" or "second" may include, explicitly or implicitly, one or more of said features. In the description of the present invention, "multiple" means two or more unless otherwise expressly limited. In addition, the terms "attached", "coupled", and "connected" should be understood in a broad sense, for example, fixed connection, detachable connection, or integral connection, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, or internal communication between two components. Those skilled in the art will be able to understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0023] An underwater communication system is a system that is laid on the bottom of the ocean, the bottom of a lake, or the like, for realizing long-distance data communication. For example, the underwater communication system may include a submarine cable communication system.

[0024] However, underwater communication systems are affected by the underwater topography of different regions in the process of achieving long-distance communication, and therefore the installation methods of photoelectric cables and underwater equipment differ in different regions. As shown in Figure 1, photoelectric cables and underwater equipment located in shallow waters need to be buried at a depth of 3m or less on the seabed to reduce the impact of human activities and environmental organisms on the cables and equipment, while photoelectric cables and underwater equipment located in deep waters can be directly laid on the surface of the deep seabed because they are less affected by both human activities and environmental organisms.

[0025] Due to the precision of the underwater communication system and the limited design life, the underwater equipment has a relatively strict requirement for the operating temperature range, and in some embodiments, the operating temperature of the underwater equipment needs to be between 0 and 35° C. Since the water temperature in deep water is usually about 4° C., even if the underwater equipment generates heat during operation, the seawater dissipates the heat from the underwater equipment, thereby reducing the operating temperature of the underwater equipment.

[0026] However, in shallow waters, underwater equipment is buried in sediment, and the heat dissipation efficiency of the underwater equipment is reduced by the encasement of sediment. In addition, the temperature of the surface seawater changes with the seasons, and when the seawater temperature is high, this further affects the heat dissipation efficiency of the underwater equipment and affects the normal operation of the underwater equipment.

[0027] In order to solve the problem that the heat dissipation efficiency of underwater equipment placed in shallow water in an underwater communication system is low, which affects the normal operation of the underwater equipment, an embodiment of the present application provides a heat dissipation device for underwater equipment, which is applied to the underwater equipment in the underwater communication system. As shown in FIG. 2, the heat dissipation device includes a heat dissipation shell 100 and a water-permeable component 200, where the heat dissipation shell 100 is fitted to the outside of the underwater equipment.

[0028] The heat dissipation shell 100 includes an outer wall casing 110, both of which have a cylindrical structure. The cross-sectional diameter of the outer wall casing 110 is larger than the cross-sectional diameter of the underwater equipment enclosed in the heat dissipation shell 100. The outer wall casing 110 and the underwater equipment are installed coaxially. Further, the underwater equipment can dissipate heat generated by the operation of the underwater equipment through the heat dissipation shell and the medium within the heat dissipation shell.

[0029] In addition, the underwater equipment in the embodiments of the present application may be equipment such as an optical repeater RPT (repeater), and since signals are lost in the cable during long-distance communication transmission, an RPT having a signal repeater and amplification function is installed at each cable separated by a certain distance, thereby enabling long-distance transmission of signals, and the cable length between two RPTs may be 50 km, 70 km, 100 km, etc., and there is no particular limit to the cable length between two RPTs in the present application. During the construction of an underwater communication system, the underwater equipment is usually installed directly on the cable, wrapped around it, and lowered into the water together with the cable.

[0030] The water seepage component 200 in the heat dissipation device has a cone-shaped structure, and the water seepage component 200 is installed on both ends of the heat dissipation shell 100, and the water seepage component 200 is connected to the outer wall casing 110, so that the water seepage component 200, the outer wall casing 110, and the shell of the underwater equipment are surrounded to form a heat dissipation chamber 120. Exemplarily, two water seepage components 200 are provided in the heat dissipation device, and the two water seepage components 200 are installed on both ends of the heat dissipation shell 100, respectively.

[0031] In some embodiments of the present application, both ends of the outer wall casing 110 may be provided with female threads, and the water-permeable component 200 may be provided with male threads, so that the outer wall casing 110 and the water-permeable component 200 can be screwed together to enclose the heat dissipation chamber 120. Note that the above-mentioned connection methods are merely possible connection methods between the outer wall casing 110 and the water-permeable component 200, and the present application does not limit the connection method between the outer wall casing 110 and the water-permeable component 200.

[0032] At the same time, in order to dissipate heat through water, as shown in FIG. 3, a number of first water inlet holes 201 are arranged in an array in the water permeable component 200, so that when the underwater equipment together with the cable is submerged in water, the water permeable components 200 located at both ends of the heat dissipation shell 100 can inject water through the first water inlet holes 201 by water pressure, so that the heat dissipation chamber 120 is gradually filled with water, and even after the underwater equipment is buried in the soil at the bottom of the water, heat can still be dissipated through the heat dissipation device and the water inside it.

[0033] In some embodiments, the diameter of the first water injection hole 201 may be less than 5 mm and greater than 1 mm. In this way, the occurrence of a situation in which a large amount of soil and sand enters the heat dissipation chamber 120 during the burial of the underwater equipment can be reduced, and the heat dissipation efficiency of the underwater equipment can be improved. At the same time, the diameter of the first water injection hole 201 is prevented from being too small, and the occurrence of a situation in which water can flow into the heat dissipation chamber 120 through the first water injection hole 201 during construction due to a lack of liquid in the heat dissipation chamber 120, which affects the heat dissipation efficiency, can be reduced.

[0034] For example, a mesh having a hole diameter smaller than the diameter of the first water inlet hole 201 may be installed in the water permeation component 200 to block small particles of sediment from entering and reduce the impact of sediment on heat dissipation efficiency.

[0035] It should be noted that the diameter of the first water injection hole 201 may be larger or smaller, and the values ​​shown in this application are only possible embodiments, and the specific diameter of the first water injection hole 201 is not limited in this application, but in order to ensure that large particles of soil and sand can be blocked and water can flow in a timely manner, the diameter of the first water injection hole 201 should be on the order of millimeters.

[0036] 4, in some embodiments of the present application, the casing of the water seepage component 200 may have a certain thickness, and the first water inlet holes 201 may be provided with grooves to retain sediment in the water to a certain extent, thereby reducing the occurrence of sediment entering the heat dissipation chamber 120. It should be understood that since the water seepage component 200 may rotate at a certain angle during installation and use, the grooves may be provided in both the upper and lower opposite directions of each first water inlet hole 201, thereby providing each first water inlet hole 201 with a certain sediment filtering function.

[0037] It should be noted that providing a groove in first water inlet hole 201 to reduce the inflow of sediment is merely one possible embodiment, and in a specific implementation process, sediment can also be reduced by limiting the flow path shape of first water inlet hole 201, for example, making the flow path shape of first water inlet hole 201 a V-shaped or S-shaped path to reduce the inflow of sediment. In the present application, there are no particular limitations on the flow path shape of first water inlet hole 201.

[0038] When the heat dissipation device is not installed in the underwater equipment, the heat dissipation effect of the underwater equipment can be Q1=K1×S1, where Q1 is the heat dissipation amount before the shell is increased, K1 is the heat dissipation coefficient before the shell is increased, and S1 is the heat dissipation area before the shell is increased. After the heat dissipation device is installed in the underwater equipment, the heat dissipation effect of the underwater equipment can be Q2=K2×S2, where Q2 is the heat dissipation amount after the shell is increased, K2 is the heat dissipation coefficient after the shell is increased, and S2 is the heat dissipation area after the shell is increased.

[0039] Because the heat dissipation coefficient of water is greater than that of the underwater equipment itself and that of soil, and after the heat dissipation device is fitted outside the underwater equipment, the heat dissipation area of ​​the underwater equipment increases to the surface area of ​​the heat dissipation device. Therefore, under conditions in which the underwater equipment generates the same heat, the amount of heat dissipation after the heat dissipation device is increased is greater than the amount of heat dissipation before the heat dissipation device was increased, thereby increasing the heat dissipation area of ​​the underwater equipment to improve the heat conduction efficiency, improve the heat dissipation efficiency when the underwater equipment is in operation, and improve the operating stability of the underwater communication system.

[0040] In some embodiments of the present application, the outer wall casing 110 and the water seepage component 200 are both made of metal, which has good thermal conductivity and can assist in the heat dissipation of the water located in the heat dissipation chamber 120 and improve the heat dissipation efficiency.

[0041] Illustratively, the outer wall casing 110 and the waterproofing component 200 may be made of copper, aluminum, or other suitable materials. The outer wall casing 110 and the water-permeable component 200 may be made of metal such as aluminum, copper, or iron. The outer wall casing 110 and the water-permeable component 200 made of metal can increase the structural strength of the heat dissipation device of the underwater equipment, and the metal has high thermal conductivity, which can further improve the heat dissipation efficiency of the underwater equipment.

[0042] Since underwater equipment in shallow water needs to be buried under the ground at the bottom of the water, the heat dissipation device needs to be fitted into the underwater equipment before the cable and underwater equipment are lowered into the water, and wrapped around the equipment of the construction ship together with the underwater equipment and the cable, such as the cable guide rail and hub; therefore, it should be understood that the diameter of the outer wall casing 110 in the heat dissipation shell 100 needs to meet the constraints of the cable guide rail and hub, so as to avoid the underwater equipment equipped with the heat dissipation device coming off the cable guide rail and hub or damaging the cable connected to them when wrapped around the cable guide rail and hub.

[0043] During construction of the underwater communication system, the underwater equipment needs to be installed together with the cable, so the heat dissipation device installed on the outside of the underwater equipment needs to be lowered into the water together with the underwater equipment and buried in the bottom of the water. During construction, the cable and the underwater equipment are wound around the cable guide rail and hub of the construction ship, and the cable and the underwater equipment are lowered into the water by rotating the hub. In addition, during construction of the underwater communication system in shallow water, the cable and the underwater equipment need to be buried in the bottom of the water, and the buried depth needs to be at least 3m, so the heat dissipation device needs to have a certain structural strength, so as to avoid damage to the structure of the heat dissipation device when the winding and burial depth are large, and reduce the occurrence of problems such as deformation of the outer wall casing 110 and reduction of the heat dissipation chamber 120.

[0044] In some embodiments, a fixing bracket 130 is further installed in the heat dissipation shell 100. Specifically, the fixing bracket 130 is installed between the shell of the underwater equipment and the outer wall casing 110, and the fixing bracket 130 can support the heat dissipation chamber 120, improving the structural strength of the heat dissipation shell 100, thereby reducing the deformation of the heat dissipation shell 100 during construction, improving the reliability of the device, and avoiding the problem of reduced heat dissipation efficiency caused by structural deformation.

[0045] To support the heat dissipation shell 100, as shown in Fig. 5, the fixed bracket 130 can include at least one annular sheet 131. It should be understood that the annular sheet 131 is an annular sheet-like structure having a certain thickness, so that the annular sheet 131 includes two coaxial cylindrical arc surfaces, i.e., an annular inner surface and an annular outer surface, and the cross-sectional diameter of the annular inner surface is smaller than the cross-sectional diameter of the annular outer surface.

[0046] The cross-sectional diameter of the annular inner surface is the same as the cross-sectional diameter of the shell of the underwater equipment, and the cross-sectional diameter of the annular outer surface is the same as the cross-sectional diameter of the outer wall casing 110. Illustratively, the annular seat 131 should be installed coaxially with the underwater equipment and the outer wall casing 110, such that the annular inner surface fits into the shell of the underwater equipment, and the annular outer surface fits into the outer wall casing 110.

[0047] In this way, by installing an annular sheet between the underwater equipment and the outer wall casing 110 and supporting the heat dissipation chamber 120 formed by the heat dissipation shell 100 and the water-permeable component 200, when the outer wall casing 110 is pressed by an external force, part of the external force can be transmitted to the underwater equipment through the annular sheet 131, thereby reducing the risk of overall structural deformation of the heat dissipation device.

[0048] In the embodiment of the present application, as shown in FIG. 5, the number of the annular sheet 131 may be one. Specifically, the annular sheet 131 may be disposed at the center of the heat dissipation chamber 120, that is, the sizes of the spaces on both sides of the annular sheet 131 are the same, so that the outer wall The supporting strength of the casing 110 is made uniform, thereby improving the structural strength of the heat dissipation device.

[0049] 6, the fixing bracket 130 may include three annular sheets 131 arranged in an array between the underwater equipment and the outer wall casing 110. Specifically, the first annular sheet 131a is arranged at the center of the heat dissipation chamber 120, the second annular sheet 131b and the third annular sheet 131c are arranged on both sides of the first annular sheet 131a, and the second annular sheet 131b and the third annular sheet 131c are arranged at the same intervals from the first annular sheet 131a. By installing a plurality of annular sheets 131, the support strength of the outer wall casing 110 can be improved, the structural strength of the heat dissipation device can be improved, and the risk of the overall structure of the heat dissipation device being deformed under pressure can be reduced.

[0050] The number of annular sheets 131 may be one or more, and there is no limit to the number of annular sheets 131 in the embodiments of the present application. It should be understood that the above-mentioned installation method of one or three annular sheets 131 is merely an example of the present application, and there is no limit to the specific number of annular sheets 131 in the present application.

[0051] In addition, in order to facilitate the installation of the heat dissipation shell 100 to the underwater equipment, the outer wall casing 110 can be of two semi-cylindrical structures, and the two are connected through a hinge, and further, the opening and closing of the outer wall casing 110 can be controlled through the hinge during use, and the underwater equipment can be placed in the outer wall casing 110. In order to facilitate the installation, when the outer wall casing 110 is of two semi-cylindrical structures, the annular sheet 131 can be of a semi-circular annular structure, so that the annular sheet 131 can be opened and closed in conjunction with the opening and closing of the outer wall casing 110, and the difficulty of installing the underwater equipment to the outer wall casing 110 can be reduced.

[0052] 6, when the fixing bracket 130 includes a plurality of annular sheets 131, the annular sheets 131 can prevent the flow of water in the heat dissipation chamber 120. Therefore, in some embodiments, the annular sheets 131 are provided with a plurality of water permeable holes 1311 in an array, and the diameter of the water permeable holes 1311 is equal to or smaller than the diameter of the first water inlet hole 201. In this way, after the heat dissipation chamber 120 is divided into multiple chambers by the plurality of annular sheets 131, the liquid can flow through the water permeable holes 1311, and the heat dissipation efficiency of the heat dissipation device of the underwater equipment can be further increased.

[0053] In some embodiments of the present application, in order to improve the mounting stability of the heat dissipation device, a friction material 1312 may be further provided on the annular sheet 131 as shown in Fig. 6. Exemplarily, the friction material 1312 is installed between the annular inner surface and the shell of the underwater equipment, and the friction material 1312 can improve the friction force between the annular sheet 131 and the underwater equipment, thereby reducing the slippage of the heat dissipation shell 100 relative to the underwater equipment, and improving the structural stability between the heat dissipation shell 100 and the underwater equipment.

[0054] 6, in order to improve the supporting strength of the annular sheet 131 to the heat dissipation shell 100, a fixing groove 140 is provided on the outer wall casing 110, the annular sheet 131 is installed in the fixing groove 140, and the fixing groove 140 and the annular sheet 131 are tightly fitted together to sandwich the annular sheet 131, so that the annular sheet 131 is installed between the shell of the underwater equipment and the outer wall casing 110. In this way, the outer wall casing 110 can fix the annular sheet 131, increase the supporting strength of the annular sheet 131 to the heat dissipation chamber 120, and further improve the structural strength of the heat dissipation device of the underwater equipment.

[0055] In some embodiments, the manner in which the annular sheet 131 is attached to the outer wall casing 110 is by welding. The method of installing the annular sheet 131 may be by contact, fastening, adhesion, etc., and the present application does not limit the specific method of installing the annular sheet 131.

[0056] In some embodiments of the present application, in order to improve the water filling speed of the heat dissipation shell 100 and avoid insufficient water filling in the heat dissipation chamber 120 when buried, as shown in FIG. 7, a plurality of second water inlet holes 111 may be arranged in an array in the heat dissipation shell 100, and the hole diameter of the second water inlet holes 111 is equal to or smaller than the hole diameter of the first water inlet hole 201.

[0057] For example, in order to reduce the inflow of soil and sand, the second water inlet holes 111 are installed on opposite sides of the outer wall casing 110, and when the heat dissipation shell 100 is buried, the second water inlet holes 111 are oriented as far to both sides as possible relative to the underwater equipment, thereby preventing soil and sand from flowing into the heat dissipation shell due to the upward and downward pressure of the soil after burial.

[0058] By adding the second water inlet hole 111 to the heat dissipation shell 100, the water filling speed of the heat dissipation chamber 120 can be increased, and the problem of insufficient water filling in the heat dissipation chamber 120 can be avoided.

[0059] In some other embodiments of the present application, as shown in Fig. 8, the fixing bracket 130 may include a plurality of support columns 132, which are arranged in an array to form one or more ring structures to provide support to the outer wall casing 110. For example, the plurality of support columns 132 may form a spoke-like ring structure to provide support to the outer wall casing 110. Meanwhile, a gap is provided between two adjacent support columns 132 to allow water to flow. In this way, the plurality of support columns 132 can achieve the function of support and reduce the risk of structural deformation.

[0060] For example, the support pole 132 may be provided with a water permeable hole 1321 so that water can flow through the water permeable hole 1321. In some embodiments, when the fixing bracket 130 includes a plurality of support poles 132, the outer wall casing 110 may be provided with a fixing groove 140 corresponding to one end shape of the support poles 132, and the support poles 132 may be fitted to be installed between the underwater equipment and the outer wall casing 110.

[0061] The manner in which the support poles 132 are installed on the outer wall casing 110 may be by welding, fastening, adhesion, etc., and it should be understood that the present application does not limit the specific manner in which the support poles 132 are installed.

[0062] To improve structural strength, the fixing bracket 130 may be made of a metal material, and in some embodiments of the present application, the material of the fixing bracket 130 may be the same as the material of the outer wall casing 110 and the water-permeable component 200.

[0063] As can be seen from the above solution, the present application provides a heat dissipation device for underwater equipment, which is applied to underwater equipment in an underwater communication system, and the heat dissipation device includes a heat dissipation shell 100 and a water-permeable component 200, the heat dissipation shell 100 is fitted onto the outside of the underwater equipment, the heat dissipation shell 100 includes an outer wall casing 110, the outer wall casing 110 has a cylindrical structure, and the cross-sectional diameter of the outer wall casing 110 is larger than the cross-sectional diameter of the underwater equipment, the underwater equipment and the outer wall casing 110 are installed coaxially, the water-permeable component 200 has a conical structure, a plurality of first water-injection holes 201 are arranged in an array in the water-permeable component 200, the water-permeable component 200 is installed at both ends of the heat dissipation shell 100, and the water-permeable component 200 is connected to the outer wall casing 110 so as to form a heat dissipation chamber 120 surrounded by the water-permeable component 200, the shell of the underwater equipment and the outer wall casing 110. With the above structure, after the underwater equipment is buried, the heat generated by the operation of the underwater equipment is dissipated through the liquid inside the heat dissipation chamber 120 and the heat dissipation shell, improving the heat dissipation efficiency of the underwater equipment buried in the soil in shallow water areas. It can be done.

[0064] Similar parts of the examples provided in this application may be cross-referenced, and the specific embodiments provided above are merely some examples under the overall concept of this application, and do not constitute limitations on the scope of protection of this application. For those skilled in the art, any other embodiment expanded based on the aspects of this application without creative effort belongs to the scope of protection of this application. [Explanation of symbols]

[0065] 100 heat dissipation shell, 200 water infiltration component, 110 exterior wall casing, 111 Second water inlet hole, 120 heat dissipation chamber, 130 fixing bracket, 131 annular sheet, 131a first annular sheet, 131b second annular sheet, 131c third annular sheet, 1311 water permeation hole, 1312 friction material, 132 support pillar, 1321 water permeation hole, 140 fixing groove, 201 first water inlet hole.

Claims

1. A heat dissipation device for underwater equipment applied to underwater equipment in an underwater communication system, comprising: The heat dissipation device includes a heat dissipation shell and a water-permeable component; The heat dissipation shell is fitted to the outside of the underwater equipment, the heat dissipation shell includes an outer wall casing, the outer wall casing has a cylindrical structure, the cross-sectional diameter of the outer wall casing is larger than the cross-sectional diameter of the shell of the underwater equipment, and the outer wall casing and the underwater equipment are coaxially installed; The heat dissipation device for underwater equipment, characterized in that the water-permeable component has a conical structure, the water-permeable component has a plurality of first water-injection holes arranged in an array, the water-permeable component is installed at both ends of the heat dissipation shell, and the water-permeable component is connected to the outer wall casing so as to form a heat dissipation chamber surrounded by the water-permeable component, the outer wall casing, and the shell of the underwater equipment.

2. The heat dissipation device for underwater equipment according to claim 1 , wherein the heat dissipation shell further comprises a fixing bracket installed between the shell of the underwater equipment and the outer wall casing, and configured to support the heat dissipation chamber.

3. The heat dissipation device for underwater equipment as described in claim 2, characterized in that the fixing bracket includes at least one annular seat installed coaxially with the outer wall casing, the annular seat including an annular inner surface that fits into the shell of the underwater equipment and an annular outer surface that fits into the outer wall casing.

4. The heat dissipation device for underwater equipment according to claim 3, wherein the fixing bracket includes three of the annular sheets arranged in an array between the shell of the underwater equipment and the outer wall casing.

5. 4. The heat dissipation device for underwater equipment according to claim 3, wherein a plurality of water-permeable holes are provided in an array in the annular sheet, and a diameter of the water-permeable holes is equal to or smaller than a diameter of the first water inlet hole.

6. The heat dissipation device for underwater equipment as described in claim 3, characterized in that the annular sheet is provided with a friction material installed between the annular inner surface and the shell of the underwater equipment, the friction material being used to improve the friction force between the annular sheet and the underwater equipment.

7. 4. The heat dissipation device for underwater equipment according to claim 3, wherein the outer wall casing is provided with a fixing groove for tightly fitting with the annular sheet in order to install the annular sheet on the outer wall casing.

8. The heat dissipation device for underwater equipment as described in claim 2, characterized in that the fixing bracket includes a plurality of support pillars arranged in an array, with a gap between two adjacent support pillars, one end of the support pillars being joined to the outer wall casing, and the other end of the support pillars being in contact with the shell of the underwater equipment.

9. The heat dissipation device for underwater equipment according to claim 1 , wherein the heat dissipation shell and the water-permeable component are both made of metal.

10. 2. The heat dissipation device for underwater equipment according to claim 1, wherein a plurality of second water inlet holes are arranged in an array in the heat dissipation shell, and the hole diameter of the second water inlet holes is equal to or smaller than the hole diameter of the first water inlet holes.

11. The heat dissipation device for underwater equipment according to claim 1 , wherein the diameter of the first water inlet hole is less than 5 mm and greater than 1 mm.

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