Adaptive railway rail cooling system using intelligent IoT, and railway rail cooling method using the same

Abstract

A railway rail cooling system is provided that controls the spraying of cooling water onto an overheated railway rail via intelligent IoT through a manager. The railway rail cooling system may include a temperature sensor that measures the temperature of the railway rail, a controller that controls the spraying of the cooling water according to the temperature of the railway rail measured by the temperature sensor, and a server that communicates with the manager's terminal to control the temperature of the railway rail.

Description

Technology Field

[0001] The present application relates to a railway rail cooling system that controls the spraying of cooling water onto an overheated railway rail via intelligent IoT through a manager, and more specifically, to a railway rail cooling system that controls the temperature of a railway rail by including a temperature sensor that measures the temperature of the railway rail, a controller that controls the spraying of the cooling water according to the temperature of the railway rail measured through the temperature sensor, and a server that communicates with the manager's terminal. Background Technology

[0003] Generally, railway rails are made of metal. Due to the nature of metal, railway rails undergo deformation, such as elongation, when exposed to hot summer weather for extended periods; in severe cases, this deformation can lead to train derailment.

[0004] To address these issues, railway rails are installed with partial shorting to account for thermal expansion. However, the impact generated when train wheels pass over these shorted sections not only causes noise but also impacts the wheels, car body, and rails, posing a risk of derailment due to wheel failure. Furthermore, it affects ride comfort, preventing high-speed operation and requiring frequent rail replacement.

[0005] Recently, to address the aforementioned problems, long rails are widely used in high-speed railways. These rails are welded together to reduce gaps between rails and extend their length. A long rail refers to a rail exceeding 300 meters in length, created by welding together multiple standard 25-meter rails. These rails are transported to the installation site and then joined by welding the 300-meter sections for installation. Long rails are manufactured using heavy materials with increased density to reduce shrinkage and expansion rates, and are secured to concrete sleepers to minimize expansion and contraction. Furthermore, to minimize expansion and contraction caused by temperature changes, long rails are laid at a temperature of 20°C, which is the midpoint between the lowest temperature of -20°C and the highest temperature of 60°C.

[0006] Currently, in the case of the KTX, if the temperature of the railway rails exceeds 50℃ due to a heatwave, the train must operate under caution. For example, if the rail temperature is 55–60℃, it must operate at a speed of 230 km / h or less, and if it is 60–63℃, it must operate at a speed of 70 km / h or less. There was even a problem where operations had to be suspended if the temperature exceeded 64℃. The problem to be solved

[0008] The technical problem that this application aims to solve is to provide a railway rail cooling system that automatically controls the temperature of the railway rail.

[0009] Another technical problem that this application aims to solve is to provide a railway rail cooling system with improved cooling efficiency.

[0010] Another technical problem that this application aims to solve is to provide a railway rail cooling system that communicates with a manager.

[0011] Another technical problem that this application aims to solve is to provide a railway rail cooling system with improved ease of use for the manager.

[0012] The technical problems that this application aims to solve are not limited to those described above. means of solving the problem

[0014] To solve the above technical problem, the present application provides a railway rail cooling system controlled by an intelligent IoT through a manager to spray cooling water onto an overheated railway rail.

[0015] According to one embodiment, the railway rail cooling system may include a temperature sensor for measuring the temperature of the railway rail, a controller for controlling the spraying of the cooling water according to the temperature of the railway rail measured through the temperature sensor, and a server for communicating with the manager's terminal.

[0016] According to one embodiment, the controller may include controlling the spraying of the cooling water onto the railway rail when the temperature value of the railway rail measured by the temperature sensor is higher than a preset first temperature.

[0017] According to one embodiment, the controller may include controlling the cooling water not to be sprayed onto the railway rail when the temperature value of the railway rail measured by the temperature sensor becomes lower than a preset second temperature.

[0018] According to one embodiment, the controller may automatically maintain the level of the coolant, and if the supply of the coolant is restricted, transmit a coolant shortage alarm to the administrator's terminal via the server.

[0019] To solve the above technical problem, the present application provides a railway rail cooling method controlled by intelligent IoT to spray cooling water onto an overheated railway rail.

[0020] According to one embodiment, the railway rail cooling method may include the steps of measuring the temperature of the railway rail, controlling the spraying of the cooling water according to the measured temperature of the railway rail, and transmitting the temperature of the railway rail and whether the cooling water is sprayed to an administrator. Effects of the invention

[0022] According to an embodiment of the present application, a railway rail cooling system may include a temperature sensor for measuring the temperature of the railway rail, a controller for controlling the spraying of cooling water according to the temperature of the railway rail measured through the temperature sensor, and a server for communicating with the administrator's terminal. Accordingly, the temperature of the railway rail can be automatically controlled.

[0023] Additionally, the controller may include controlling the spraying of the cooling water onto the railway rail when the temperature value of the railway rail measured by the temperature sensor is higher than a preset first temperature, and controlling the non-spraying of the cooling water onto the railway rail when the temperature value of the railway rail measured by the temperature sensor becomes lower than a preset second temperature. Accordingly, cooling efficiency may be improved.

[0024] The above controller may include automatically maintaining the level of the coolant, and, if the supply of the coolant is restricted, transmitting a coolant shortage alarm to the administrator's terminal via the server. Accordingly, the status of the railway rail can be notified to the administrator, and the administrator's convenience of use can be improved. Brief explanation of the drawing

[0026] FIG. 1 is a flowchart illustrating a railway rail cooling method according to an embodiment of the present application. FIG. 2 is a block diagram illustrating a railway rail cooling system according to an embodiment of the present application. FIG. 3 is a signal flow diagram for explaining a railway rail cooling method according to an embodiment of the present application. FIG. 4 is a flowchart illustrating a method for controlling fine liquid injection of cooling water according to an embodiment of the present application. FIG. 5 is a flowchart illustrating a micro-liquid spray system for cooling water according to an embodiment of the present application. FIGS. 6 and 7 are cross-sectional views illustrating the injection section of a fine liquid injection system for cooling water according to an embodiment of the present application. FIG. 8 is a plan view illustrating the injection section of a fine liquid injection system for cooling water according to an embodiment of the present application. FIG. 9 is a perspective view illustrating the injection section of a fine liquid injection system for cooling water according to an embodiment of the present application. FIG. 10 is a flowchart illustrating a micro-liquid spray system for cooling water according to an embodiment of the present application. FIGS. 11 and FIGS. 12 are drawings for illustrating a fine liquid injection system of a railway rail cooling system according to a first variation of the present application. FIG. 13 is a drawing illustrating a fine liquid injection system of a railway rail cooling system according to a second variant of the present application. FIGS. 14 and 15 are drawings for illustrating the injection section of a micro-liquid injection system of a railway rail cooling system according to a third variation of the present application. FIG. 16 is a drawing for explaining the injection part of a railway rail cooling system according to the fourth variant of the present application. FIG. 17 is a drawing illustrating an actual application example of a micro-liquid injection system of a railway rail cooling system according to an embodiment of the present application. Specific details for implementing the invention

[0027] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical concept of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed content is thorough and complete and to ensure that the concept of the present invention is sufficiently conveyed to those skilled in the art.

[0028] Additionally, although terms such as first, second, third, etc., have been used to describe various components in the various embodiments of this specification, these components should not be limited by such terms. These terms are used merely to distinguish one component from another. Accordingly, what is referred to as the first component in one embodiment may be referred to as the second component in another embodiment. Each embodiment described and illustrated herein also includes its complementary embodiment. Furthermore, in this specification, "and / or" is used to mean including at least one of the components listed before and after it.

[0029] In the specification, singular expressions include plural expressions unless the context clearly indicates otherwise. Furthermore, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, components, or combinations thereof described in the specification, and should not be understood as excluding the existence or addition of one or more other features, numbers, steps, components, or combinations thereof. Additionally, in the following description of the invention, if it is determined that a detailed description of related known functions or configurations could unnecessarily obscure the essence of the invention, such detailed description will be omitted.

[0031] FIG. 1 is a flowchart for explaining a railway rail cooling method according to an embodiment of the present application, FIG. 2 is a block diagram for explaining a railway rail cooling system according to an embodiment of the present application, and FIG. 3 is a signal flowchart for explaining a railway rail cooling method according to an embodiment of the present application.

[0032] Referring to FIGS. 1 to 3, a railway rail cooling system according to an embodiment of the present application includes a temperature sensor (410), a controller (430), and a server (450), which can be controlled via intelligent IoT through a manager to spray cooling water onto an overheated railway rail.

[0033] The temperature of the above railway rail is measured (S100).

[0034] The temperature sensor (410) may be positioned on the railway rail to measure the temperature of the railway rail. For example, the temperature sensor (410) may be attached longitudinally to the side of the railway rail, but is not limited thereto. For example, the temperature sensor (410) may include a PT100 to measure the temperature precisely, but is not limited thereto.

[0035] The spraying of cooling water is controlled according to the measured temperature of the railway rail (S200).

[0036] The controller (430) can check the temperature of the railway rail through the temperature sensor (410). The controller (430) can control the spraying of cooling water according to the temperature of the railway rail measured through the temperature sensor (410).

[0037] For example, the controller (430) can control the spraying of the cooling water onto the railway rail when the temperature value of the railway rail measured by the temperature sensor (410) is higher than a preset first temperature. Additionally, the controller (430) can control the spraying of the cooling water onto the railway rail so that it is no longer sprayed onto the railway rail when the temperature value of the railway rail measured by the temperature sensor (410) falls below a preset second temperature while the cooling water is being sprayed onto the railway rail.

[0038] The first temperature may include an upper limit value of the temperature of the railway rail. The second temperature may include an appropriate temperature value of the railway rail. The second temperature may be lower than the first temperature, and the first temperature and the second temperature may be set by the manager of the railway rail cooling system.

[0039] Although not shown, the controller (430) can detect the level of the coolant and control it to maintain it automatically. If the supply of the coolant is restricted due to a shortage of coolant or other reasons and the level of the coolant is not maintained at a certain level, the controller (430) can send a coolant shortage alarm to the administrator's terminal via the server (450).

[0040] The temperature of the above railway rail and whether the above cooling water is sprayed are transmitted to the manager (S300).

[0041] The server (450) can communicate with the controller (430) and the administrator's terminal. The server (450) can receive information from the controller (430) regarding the temperature of the railway rail, whether the cooling water is sprayed, and whether there is a shortage of the cooling water. The server (450) can transmit information regarding the temperature of the railway rail, whether the cooling water is sprayed, and whether there is a shortage of the cooling water to the administrator's terminal. For example, the server (450) may include an IoT environment built using the MQTT (Message Queueing Telemetry Transport) protocol and a Node-Red-based web server.

[0042] The above MQTT protocol is a publish-subscribe based message transmission and reception protocol that was internationally standardized in 2016 (ISO standard ISO / IEC PRF 20922), and may include a protocol designed for remote communication where a small code space is required or network bandwidth is limited, that is, for limited or large-scale traffic transmission such as IoT.

[0043] The above Node-Red may include an open development tool that runs based on NodeJS and JavaScript and helps with web programming by connecting multiple nodes to each other through clicking.

[0044] Referring to FIG. 3, the temperature sensor (410) can measure the temperature of the railway rail and transmit the temperature value of the railway rail to the controller (430). If the temperature value of the railway rail received from the temperature sensor (410) is higher than the preset first temperature, the controller (430) can control the spraying of the cooling water onto the railway rail. Alternatively, if the temperature value of the railway rail is lower than the preset first temperature, the controller (430) can control the spraying of the cooling water onto the railway rail at the temperature value received from the temperature sensor (410). The controller (430) can transmit the temperature value of the railway rail and whether the cooling water is sprayed to the server (450). When the temperature value received from the temperature sensor (410) is higher than the preset first temperature and the controller (430) controls the spraying of the coolant, the temperature sensor (410) can measure the temperature of the railway rail at regular intervals. In this case, if the temperature value of the railway rail received from the temperature sensor (410) is lower than the preset second temperature, the controller (430) can control the spraying of the coolant onto the railway rail where the temperature value received from the temperature sensor (410) is preset. Alternatively, if the temperature value of the railway rail is lower than the first temperature but higher than the second temperature, the controller (430) can control the spraying of the coolant onto the railway rail. The controller (430) can transmit the temperature value of the railway rail and whether the coolant is sprayed to the server (450).

[0045] In other words, when the manager pre-sets the first temperature and the second temperature through the server (450), the temperature of the railway rail can be measured through the temperature sensor (410), and the spraying of the cooling water can be automatically controlled. That is, the first temperature value and the second temperature value can be set differently depending on the temperature, humidity, climate, environment, etc., thereby allowing the spraying of the cooling water to be controlled dynamically. Accordingly, the temperature of the railway rail, which varies depending on the situation, can be controlled dynamically, thereby efficiently preventing deformation of the railway rail. Furthermore, requests based on the manager's judgment, etc., can be accommodated, the temperature of the railway rail can be controlled automatically, the cooling efficiency of the railway rail can be improved, and the convenience of use for the manager can be enhanced.

[0046] Although not shown, the controller (430) may maintain the spraying of the coolant for a certain period of time and then stop the spraying of the coolant for a certain period of time. For example, the controller (430) may control the coolant so that it is not sprayed for 1 hour after spraying the coolant onto the railway rail for 10 minutes. In other words, the controller (430) controls the coolant so that it is not sprayed continuously for more than a certain period of time, thereby preventing the railway rail cooling system from being overloaded.

[0047] Additionally, the controller (430) can prioritize controlling whether to spray the cooling water according to the ambient temperature. As described above, the controller (430) can control the spraying of the cooling water onto the railway rail when the temperature value of the railway rail received from the temperature sensor (410) is higher than the preset first temperature. However, if the temperature value of the railway rail is lower than the preset first temperature but the ambient temperature where the railway rail is located exceeds a certain temperature, the controller (430) can control the spraying of the cooling water. For example, if the temperature value of the railway rail is measured to be lower than the first temperature but the ambient temperature where the railway rail is located is 32 degrees or higher, the controller (430) can control the spraying of the cooling water by prioritizing the ambient temperature. Accordingly, the rise in temperature of the railway rail can be predicted in advance, thereby preventing deformation of the railway rail.

[0048] In this case, the server (450) can collect environmental temperature information of the location where the railway rail is located from the outside by utilizing a public API. For example, the server (450) can collect weather information, public information, etc., but is not limited thereto. Accordingly, the server (450) can collect the environmental temperature of the location where the railway rail is located without installing additional facilities, thereby enabling efficient control of the temperature of the railway rail.

[0049] FIG. 4 is a flowchart for explaining a method for controlling fine liquid spray of cooling water according to an embodiment of the present application, FIG. 5 is a flowchart for explaining a fine liquid spray system of cooling water according to an embodiment of the present application, FIG. 6 and FIG. 7 are cross-sectional views for explaining a spraying section of a fine liquid spray system of cooling water according to an embodiment of the present application, FIG. 8 is a plan view for explaining a spraying section of a fine liquid spray system of cooling water according to an embodiment of the present application, FIG. 9 is a perspective view for explaining a spraying section of a fine liquid spray system of cooling water according to an embodiment of the present application, and FIG. 10 is a flowchart for explaining a fine liquid spray system of cooling water according to an embodiment of the present application.

[0050] Referring to FIGS. 4 to 10, the railway rail cooling system may further include a cooling water supply unit (100), a cooling water storage unit (200), a spraying unit (300), a camera (420), a speaker, and a power supply unit (500).

[0051] The above cooling water supply unit (100) can supply cooling water (10) to the cooling water storage unit (200) to lower the temperature of the overheated railway rail (1, 2). The above cooling water supply unit (100) may include a moisture collecting member (110) and a recovery member (120).

[0052] The above railway rails (1, 2) may be placed on the ground to guide a path for a train having wheels, etc. As shown in FIG. 6, the railway rails (1, 2) may be formed in the shape of a beam having an I-shaped cross-section. The railway rails (1, 2) may include a first railway rail (1) and a second railway rail (2) being arranged parallel to each other.

[0053] The above cooling water (10) may be sprayed directly or indirectly onto the railway rail (1, 2) to lower the temperature of the railway rail (1, 2) when the railway rail (1, 2) is overheated. For example, the cooling water (10) may include water such as tap water, rainwater, purified water, etc., but is not limited thereto.

[0054] The above moisture collecting member (110) can collect moisture from the air. For example, the above moisture collecting member (110) may include a dehumidification device, etc. The above moisture collecting member (110) can transfer the moisture (water) collected from the air to the cooling water storage unit (200).

[0055] The above recovery member (120) can recover the fine liquid (30) and / or rainwater sprayed on the railway rails (1, 2). The above recovery member (120) can transfer the moisture (water) of the recovered fine liquid (30) and / or rainwater to the cooling water storage unit (200).

[0056] That is, cooling water can be stored without supplying additional cooling water through the above-mentioned moisture collection member (110) and the above-mentioned recovery member (120). Accordingly, the cost required for initial facilities such as water supply and sewage facilities can be reduced, and maintenance costs can also be reduced, thereby improving economic efficiency. In addition, the temperature of the above-mentioned railway rails (1, 2) can be lowered using water, thereby efficiently preventing deformation of the above-mentioned railway rails (1, 2).

[0057] The above-mentioned coolant storage unit (200) can receive and store the coolant (10) from the above-mentioned coolant supply unit (100). The above-mentioned coolant storage unit (200) may include a main tank (210) and an auxiliary tank (220).

[0058] The main tank (210) can receive and store the cooling water (10) from the moisture collecting member (110). The main tank (210) can transfer the cooling water (10) to the spraying unit (300).

[0059] The auxiliary tank (220) can receive and store the cooling water (10) from the recovery member (120). The auxiliary tank (220) can transfer the cooling water (10) to the spray unit (300). For example, the auxiliary tank (220) can transfer the cooling water (10) to the spray unit (300) only when there is no cooling water (10) in the main tank (210).

[0060] In other words, moisture (water) collected from the air is stored in the main tank (210), and the fine liquid (30) and / or rainwater sprayed onto the railway rails (1, 2) can be stored in the auxiliary tank (220). Consequently, by storing the moisture (water) in different spaces depending on the method of acquisition, the cooling water (10) can be efficiently stored and utilized.

[0061] The spray unit (300) can convert the coolant (10) stored in the coolant storage unit (200) into the fine liquid (30) and spray it onto the railway rail (1, 2) in the form of a mist. The spray unit (300) can be selectively driven according to the temperature of the railway rail (1, 2). The spray unit (300) may include a supply line (310), a coolant nozzle (320), a pump (330), a blower fan (340), and a rotating member (350).

[0062] The supply line (310) may include a passage through which the cooling water (10) is transported. The supply line (310) may be branched and provided in multiple units. For example, each of the multiple injection units (300) may include a structure having an inner tube (301) in the form of a tube with both ends open, and an outer tube (302) surrounding the outside of the inner tube (301). The supply line (310) may include fine liquid nozzles (311, 312).

[0063] If the supply line (310) includes a structure having the inner tube (301) and the outer tube (302), the cooling water (10) stored in the cooling water storage unit (200) can be transferred through the space between the inner tube (301) and the outer tube (302).

[0064] One end of the inner tube (301) and the other end of the inner tube (301) may be open. The blower fan (340) may be placed inside the inner tube (301). External air may be transferred into the interior of the inner tube (301) through one end of the inner tube (301), and compressed air (20) may be transferred to the exterior of the inner tube (301) through the other end of the inner tube (301). The other end of the inner tube (301) may be in communication with the outer tube (302).

[0065] As described above, the outer tube (302) can transfer the coolant (10) stored in the coolant storage unit (200) to the coolant nozzle (320). More specifically, the coolant (10) stored in the coolant storage unit (200) can pass between the inner tube (301) and the outer tube (302) and be transferred to the coolant nozzle (320). One end of the outer tube (302) can be connected to the coolant storage unit (200). The other end of the outer tube (302) can be in communication with the other end of the inner tube (301).

[0066] The fine liquid nozzles (311, 312) can spray the fine liquid (30) in the form of mist onto the railway rails (1, 2). The fine liquid nozzles (311, 312) can be formed in communication with the inner tube (301) and the outer tube (302) of the supply line (310). The fine liquid nozzles (311, 312) can be positioned adjacent to the railway rails (1, 2). For example, the fine liquid nozzles (311, 312) can be positioned on the inner side of a pair of the railway rails (1, 2), as shown in FIG. 8. The fine liquid nozzles (311, 312) can spray the fine liquid (30) toward the outer side of the railway rails (1, 2). The direction of the above-mentioned fine liquid nozzles (311, 312) can be controlled by the rotating member (350) described later. The above-mentioned fine liquid nozzles (311, 312) may include a first fine liquid nozzle (311) and a second fine liquid nozzle (312).

[0067] The first fine liquid nozzle (311) may be positioned adjacent to the first railway rail (1). The first fine liquid nozzle (311) may be formed in multiple numbers spaced apart at regular intervals. For example, the first fine liquid nozzle (311) may include a first-1 fine liquid nozzle (311-1), a first-2 fine liquid nozzle (311-2), a first-3 fine liquid nozzle (311-3), a first-4 fine liquid nozzle (311-4), …, a first-n fine liquid nozzle (311-n). The direction of each of the plurality of the first fine liquid nozzles (311-1, 311-2, 311-3, 311-4, …, 311-n) may be controlled.

[0068] The second fine liquid nozzle (312) may be positioned adjacent to the second railway rail (2). The second fine liquid nozzle (312) may be formed in multiple numbers spaced apart at regular intervals. For example, the second fine liquid nozzle (312) may include a second-1 fine liquid nozzle (312-1), a second-2 fine liquid nozzle (312-2), a second-3 fine liquid nozzle (312-3), a second-4 fine liquid nozzle (312-4), …, a second-n fine liquid nozzle (312-n). The direction of each of the multiple second fine liquid nozzles (312-1, 312-2, 312-3, 312-4, …, 312-n) may be controlled.

[0069] The cooling water nozzle (320) may be positioned at the other end of the inner tube (301). The cooling water nozzle (320) may be positioned in close proximity to the fine liquid spray nozzles (311, 312). The cooling water nozzle (320) may spray the cooling water (10), which is transported between the inner tube (301) and the outer tube (302), toward the interior of the inner tube (301). The cooling water nozzle (320) may include a hole that is open toward the interior of the inner tube (301).

[0070] The pump (330) can transfer the cooling water (10) from the main tank (210) and / or the auxiliary tank (220) to the cooling water nozzle (320).

[0071] As described above, the blower fan (340) is positioned inside the inner tube (301) and can transfer air from one end of the inner tube (301) to the other end of the inner tube (301). The blower fan (340) can transfer compressed air (20) toward the cooling water nozzle (320) and the fine liquid spray nozzles (311, 312). The compressed air (20) can be generated by an electronic pump that generates a high pressure of 30 bar or more.

[0072] The above fine liquid (30) may include a mixture of the cooling water (10) transported through the supply line (310) and the compressed air (20) transported through the blower fan (340).

[0073] The rotating member (350) includes a rotating shaft that rotates the micro liquid nozzles (311, 312), thereby controlling the direction of the micro liquid nozzles (311, 312). As described above, the direction of a plurality of the first micro liquid nozzles (311-1, 311-2, 311-3, 311-4, …, 311-n) and a plurality of the second micro liquid nozzles (312-1, 312-2, 312-3, 312-4, …, 312-n) can each be controlled by the rotating member (350).

[0074] For example, the first-1 micro liquid nozzle (311-1) and the first-3 micro liquid nozzle (311-3) can spray the micro liquid (30) in the same direction. As shown in FIG. 9, the first-2 micro liquid nozzle (311-2) and the first-4 micro liquid nozzle (311-4) can spray the micro liquid (30) in the same direction. The first-1 micro liquid nozzle (311-1) and the first-2 micro liquid nozzle (311-2) can spray the micro liquid (30) in opposite directions. The first-3 micro liquid nozzle (311-3) and the first-4 micro liquid nozzle (311-4) can spray the micro liquid (30) in opposite directions.

[0075] Likewise, the second-1 micro liquid nozzle (312-1) and the second-3 micro liquid nozzle (312-3) can spray the micro liquid (30) in the same direction. The second-2 micro liquid nozzle (312-2) and the second-4 micro liquid nozzle (312-4) can spray the micro liquid (30) in the same direction. The second-1 micro liquid nozzle (312-1) and the second-2 micro liquid nozzle (312-2) can spray the micro liquid (30) in opposite directions. The second-3 micro liquid nozzle (312-3) and the second-4 micro liquid nozzle (312-4) can spray the micro liquid (30) in opposite directions.

[0076] In other words, the micro liquid nozzles (311, 312) adjacent to each other can spray the micro liquid (30) in opposite directions. That is, among the plurality of first micro liquid nozzles (311), the first micro liquid nozzles (311-1, 311-3) located at odd numbers can spray the micro liquid (30) in one direction, and the first micro liquid nozzles (311-2, 311-4) located at even numbers can spray the micro liquid (30) in the opposite direction. Additionally, when the second micro liquid nozzles (312-1, 312-3) located at odd numbers among the plurality of second micro liquid nozzles (312) spray the micro liquid (30) in one direction, the second micro liquid nozzles (312-2, 312-4) located at even numbers can spray the micro liquid (30) in the opposite direction.

[0077] As a result, the plurality of fine liquid nozzles (311, 312) can alternately spray the fine liquid (30) in opposite directions. Accordingly, the range of the fine liquid (30) sprayed onto the overheated railway rail (1, 2) can be widened, thereby improving cooling efficiency and effectively preventing deformation of the railway rail (1, 2).

[0078] The camera (420) is installed close to the railway rail (1, 2) to determine whether a train is running on the railway rail (1, 2). The camera (420) can determine whether the fine liquid (30) is being sprayed from the spraying unit (300).

[0079] The speaker can provide guidance that the fine liquid (30) is being sprayed when the fine liquid (30) is being sprayed from the spraying unit (300). For example, when the fine liquid (30) is being sprayed through the spraying unit (300), the speaker can emit a guidance voice saying, “The line is currently overheating and a coolant is being sprayed, so please take note of this when using it.”

[0080] The controller (430) can determine whether a train is running on the railway rails (1, 2) and / or whether the fine liquid (30) is being sprayed from the spray unit (300) through the camera (420). As illustrated in FIG. 10, the controller (430) can control the spray unit (300) according to the temperature of the railway rails (1, 2) and whether the spray unit (300) is being operated. The controller (430) can operate the spray unit (300) when the temperature is above a first temperature. The controller (430) can stop the operation of the spray unit (300) when the temperature is below a second temperature.

[0081] The power supply unit (500) can supply power to the controller (430). Although not illustrated, the power supply unit (500) can also supply power to the coolant supply unit (100) and the spray unit (300). The power supply unit (500) may include a solar panel (510) that absorbs sunlight and converts it into electrical energy, and a battery (520) that stores the converted electrical energy.

[0082] That is, by supplying the electrical energy generated through the solar panel (510) and the battery (520) to the controller (430), power can be easily supplied without the need to install a separate power distribution system.

[0083] FIGS. 11 and FIGS. 12 are drawings for illustrating a fine liquid injection system of a railway rail cooling system according to a first variation of the present application.

[0084] Referring to FIGS. 11 and 12, a railway rail cooling system according to a first variant of the present application may include a spraying unit.

[0085] The above spray unit can convert the cooling water (10) stored in the cooling water storage unit into a fine liquid (30) and spray it in the form of a mist onto a pair of railway rails (1, 2). The above spray unit may include a fine liquid nozzle (311) through which the cooling water (10) is transported and sprays the fine liquid (30) in the form of a mist.

[0086] The fine liquid nozzle (311) may be positioned between a pair of the railway rails (1, 2). The fine liquid nozzle (311) may include a first fine liquid nozzle (311a) and a second fine liquid nozzle (311b) that branch out in both directions toward the pair of the railway rails (1, 2).

[0087] The first fine liquid nozzle (311a) may branch toward the first railway rail (1) of the pair of railway rails (1, 2). The first fine liquid nozzle (311a) may be formed in multiple numbers spaced apart at regular intervals.

[0088] The second fine liquid nozzle (311b) may branch toward the second railway rail (2) of the pair of railway rails (1, 2). The second fine liquid nozzle (311b) may be spaced apart at regular intervals and may be formed in multiple numbers.

[0089] The first fine liquid nozzle (311a) and the second fine liquid nozzle (311b) may be formed in multiple numbers, spaced apart at a certain distance. The first fine liquid nozzle (311a) on one side and the second fine liquid nozzle (311b) on the other side may be formed branched side by side.

[0090] As a result, the fine liquid (30) can be efficiently sprayed onto the pair of railway rails (1, 2) through the first fine liquid nozzle (311a) and the second fine liquid nozzle (311b) arranged side by side between the pair of railway rails (1, 2), thereby improving the cooling efficiency of the overheated railway rails (1, 2).

[0091] FIG. 13 is a drawing illustrating a fine liquid injection system of a railway rail cooling system according to a second variant of the present application.

[0092] Referring to FIG. 13, a railway rail cooling system according to a second variant of the present application may include a bracket (60) to efficiently spray fine liquid (30) onto an overheated railway rail (1, 2) and a reinforcing beam (50).

[0093] The above railway rails (1, 2) may be arranged in pairs on the ground to guide a path for a train having wheels, etc. The above railway rails (1, 2) may be formed in the shape of a beam having an I-shaped cross-section. The above railway rails (1, 2) may include the first railway rail (1) and the second railway rail (2) being arranged parallel to each other.

[0094] The sleeper (40) can be placed across a pair of the railway rails (1, 2) between the railway rails (1, 2) and the ground. The sleeper (40) can be formed in multiple numbers to distribute the load applied to the railway rails (1, 2) to the ground.

[0095] The reinforcing beam (50) can be positioned between a pair of the railway rails (1, 2) so as to be parallel to the first railway rail (1) and the second railway rail (2).

[0096] The bracket (60) may be connected to both ends of the sleeper (40). The bracket (60) may be formed to extend in the longitudinal direction of the sleeper (40). The bracket (60) may be provided to support the lower ends of the first fine liquid nozzle (311) and the second fine liquid nozzle (312). The bracket (60) may include an inclined surface to adjust the spray angle of the first fine liquid nozzle (311) and the second fine liquid nozzle (312).

[0097] That is, the distance between the fine liquid nozzles (311, 312) and the railway rails (1, 2) can be adjusted through the bracket (60). Additionally, the direction and angle of the fine liquid (30) sprayed from the first fine liquid nozzle (311) and the second fine liquid nozzle (312) can be adjusted through the bracket (60). Accordingly, the fine liquid (30) can be efficiently sprayed onto the railway rails (1, 2) and the reinforcing beam (50), thereby improving the cooling efficiency of the overheated railway rails (1, 2) and the reinforcing beam (50).

[0098] Since the first fine liquid nozzle (311) and the second fine liquid nozzle (312) are identical to the first fine liquid nozzle (311) and the second fine liquid nozzle (312) according to the embodiment of the present application, a detailed description is omitted.

[0099] FIGS. 14 and 15 are drawings for illustrating the injection section of a micro-liquid injection system of a railway rail cooling system according to a third variation of the present application.

[0100] Referring to FIGS. 14 and 15, the spraying unit of a railway rail cooling system according to a third variant of the present application can convert cooling water (10) stored in a cooling water storage unit into a fine liquid (30) and spray it in the form of a mist onto a pair of railway rails (1, 2). The spraying unit may include a first fine liquid nozzle (311) and a second fine liquid nozzle (312).

[0101] The first fine liquid nozzle (311) may be positioned adjacent to the first railway rail (1) located on one side of a pair of railway rails (1, 2). The first fine liquid nozzle (311) may be formed in multiple numbers spaced apart at regular intervals. The fine liquid nozzles (311) adjacent to each other may spray the fine liquid (30) in opposite directions. The first fine liquid nozzle (311) may include a first-1 fine liquid nozzle (311-1), a first-2 fine liquid nozzle (311-2), a first-3 fine liquid nozzle (311-3), a first-4 fine liquid nozzle (311-4), ..., a first-n fine liquid nozzle (311-n), and a first-m fine liquid nozzle (311-m). The direction of each of the plurality of the first fine liquid nozzles (311-1, 311-2, 311-3, 311-4, …, 311-n, 311-m) can be controlled. n of 311-n can be defined as odd, and m of 311-m can be defined as even.

[0102] The second fine liquid nozzle (312) may be positioned adjacent to the second railway rail (2) located on the other side of the pair of railway rails (1, 2). The second fine liquid nozzle (312) may be formed in multiple numbers spaced apart at regular intervals. The fine liquid nozzles (312) adjacent to each other may spray the fine liquid (30) in opposite directions. The second fine liquid nozzle (312) may include a second-1 fine liquid nozzle (312-1), a second-2 fine liquid nozzle (312-2), a second-3 fine liquid nozzle (312-3), a second-4 fine liquid nozzle (312-4), ..., a second-n fine liquid nozzle (312-n), and a second-m fine liquid nozzle (312-m). The direction of each of the plurality of the second fine liquid nozzles (312-1, 312-2, 312-3, 312-4, …, 312-n, 312-m) can be controlled. n of 312-n can be defined as odd, and m of 312-m can be defined as even.

[0103] For example, the first-1 micro liquid nozzle (311-1), the first-3 micro liquid nozzle (311-3), the first-n micro liquid nozzle (311-n), the second-1 micro liquid nozzle (312-1), the second-3 micro liquid nozzle (312-3), and the second-n micro liquid nozzle (312-n) can spray the micro liquid (30) in the same direction.

[0104] Likewise, the first-2 fine liquid nozzle (311-2), the first-4 fine liquid nozzle (311-4), the first-m fine liquid nozzle (311-m), the second-2 fine liquid nozzle (312-2), the second-4 fine liquid nozzle (312-4), and the second-m fine liquid nozzle (312-m) can spray the fine liquid (30) in the same direction.

[0105] In other words, the first fine liquid nozzle (311-1, 311-3, …, 311-n) located at odd-numbered positions among the plurality of first fine liquid nozzles (311), and the second fine liquid nozzle (312-1, 312-3, 312-n) located at odd-numbered positions among the plurality of second fine liquid nozzles (312) can spray the fine liquid (30) in one direction. Additionally, the first fine liquid nozzle (311-2, 311-4, …, 311-m) located at even-numbered positions among the plurality of first fine liquid nozzles (311), and the second fine liquid nozzle (312-2, 312-4, …, 312-m) located at even-numbered positions among the plurality of second fine liquid nozzles (312) can spray the fine liquid (30) in the opposite direction.

[0106] Consequently, the plurality of first fine liquid nozzles (311) and the plurality of second fine liquid nozzles (312) each alternately spray the fine liquid (30) toward opposite directions, and the first fine liquid nozzles (311) and the second fine liquid nozzles (311) on the same line can each spray the fine liquid (30) toward the same direction. Accordingly, the range of the fine liquid (30) sprayed onto the overheated railway rails (1, 2) can be widened, thereby improving cooling efficiency and effectively preventing deformation of the railway rails (1, 2).

[0107] FIG. 16 is a drawing for explaining the injection part of a fine liquid injection system of a railway rail cooling system according to the fourth variant of the present application.

[0108] Referring to FIG. 16, the injection section of a railway rail cooling system according to the fourth variant of the present application may include a first fine liquid nozzle (311), a second fine liquid nozzle (312), a branch pipe (313), and a valve (314).

[0109] The first fine liquid nozzle (311) may be positioned adjacent to the first railway rail (1) located on one side of a pair of railway rails (1, 2). The first fine liquid nozzle (311) may be formed in multiple numbers. The first fine liquid nozzles (311) adjacent to each other may spray the fine liquid (30) in opposite directions. The first fine liquid nozzle (311) may include a first-1 fine liquid nozzle (311-1), a first-2 fine liquid nozzle (311-2), …, a first-n fine liquid nozzle (311-n), and a first-m fine liquid nozzle (311-m). The n of 311-n may be defined as odd, and the m of 311-m may be defined as even.

[0110] The second fine liquid nozzle (312) may be positioned adjacent to the second railway rail (2) located on the other side of the pair of railway rails (1, 2). The second fine liquid nozzle (312) may be formed in multiple numbers. The second fine liquid nozzles (312) adjacent to each other may spray the fine liquid (30) in opposite directions. The second fine liquid nozzle (312) may include a second-1 fine liquid nozzle (312-1), a second-2 fine liquid nozzle (312-2), ..., a second-n fine liquid nozzle (312-n), and a second-m fine liquid nozzle (312-m). The n of 312-n may be defined as odd, and the m of 312-m may be defined as even.

[0111] The above branch pipe (313) may include a passage through which the cooling water (10) stored in the cooling water storage unit is branched and transported to a plurality of fine liquid nozzles (311, 312). The above branch pipe (313) may be connected to each of the plurality of fine liquid nozzles (311, 312) and provided in a plurality.

[0112] The valve (314) can be controlled to transfer or block the cooling water (10) to the fine liquid nozzles (311, 312). The valve (314) can be provided to each of the plurality of branch pipes (313). The valve (314) can be controlled independently through a control unit.

[0113] For example, the control unit may open only some of the plurality of valves (314) when the amount of the coolant (10) stored in the coolant storage unit is relatively small. More specifically, the control unit may open only the valve (314) connected to the first fine liquid nozzle (311-1, 311-3, …, 311-n) located at the odd number of positions among the plurality of first fine liquid nozzles (311) among the plurality of valves (314).

[0114] As another example, the control unit may open all of the plurality of valves (314) when the amount of the coolant (10) stored in the coolant storage unit is relatively large or when the temperature is relatively high, such as 33°C to 37°C.

[0115] In other words, the plurality of valves (314) can be selectively opened and closed depending on the situation. Accordingly, only the micro-liquid nozzles (311, 312) in the necessary parts can be opened, thereby improving the cooling efficiency of the railway rails (1, 2).

[0116] FIG. 17 is a drawing illustrating an actual application example of a micro-liquid injection system of a railway rail cooling system according to an embodiment of the present application.

[0117] Referring to FIG. 17, a micro liquid spraying system according to an application example of the present application may include a cooling water supply unit (100), a cooling water storage unit (200), a spraying unit, a control unit, and a power supply unit.

[0118] The above cooling water supply unit (100) is positioned adjacent to the railway rail and can capture moisture from the air. The above cooling water supply unit (100) may include a natural converter and a forced converter.

[0119] The above-mentioned natural converter can capture fog and convert it into water. The natural converter can be utilized in foggy regions and may include a fog-capturing net, a net mounting stand, and a channel for collecting the captured water. It has the advantage of lower cost and technical difficulty compared to the above-mentioned forced converter.

[0120] The above forced converter can capture moisture condensed from the air through dehumidification and store it in the cooling water storage unit (200). More specifically, the above forced converter utilizes the same principle as a dehumidifier and can condense moisture by artificially bringing air into contact with a cold area. The above forced converter has the advantage of not occupying much installation space compared to the above natural converter, but has the disadvantage of requiring electricity.

[0121] The above cooling water storage unit (200) may be provided by connecting the tracks. The above cooling water storage unit (200) may include a 1-ton sprinkler supply tank, a 5-ton sprinkler storage tank, etc.

[0122] The above-mentioned spray unit may spray water mist in one direction or both directions, and the angle of spraying may be adjusted. The above-mentioned spray unit may be arranged in multiple units at intervals of 1.5 m to 2.0 m. The above-mentioned spray unit may include a low-pressure fine spray nozzle or a fine fork nozzle, but is not limited thereto.

[0123] The control unit may generate an operation start signal to operate the coolant fine injection module. Alternatively, the control unit may operate based on an external operation start signal. The control unit may receive a signal regarding the temperature value of the railway rail through a temperature sensor. The control unit may operate the injection unit when the temperature of the railway rail is higher than a set first temperature. Additionally, the control unit may stop the coolant fine injection module when the temperature of the railway rail is lower than a set second temperature. The control unit may determine the train's operating time and operate the coolant fine injection module when the train is not in operation. Furthermore, when the injection unit is operated, the control unit may activate an guidance and warning broadcast system.

[0124] The control unit may further include a camera installed adjacent to the railway rail. Accordingly, track images captured through the camera are transmitted to the user or administrator terminal, allowing the user or administrator to check the condition of the railway rail.

[0125] The above control unit may further include a temperature control system, a timer control system, an automatic / manual control system, a text message transmission system in case of coolant shortage, and a monitoring system. For example, the control unit may instruct the operation of the injection unit when a set temperature is reached. Alternatively, the control unit may stop the operation of the injection unit after it has dropped to the set temperature. Subsequently, the above steps may be repeated according to the set temperature.

[0126] As another example, the control unit turns on the power when the set temperature is reached, operates the pump for a time period set by a timer, sprays a fine liquid through the spray unit, and stops the operation of the spray unit when the set time ends. Subsequently, a repeated spraying time and a repeated rest time can be set during the set period, and the above steps can be repeated and operated according to the set temperature.

[0127] The monitoring system described above may include an external LED monitor and a CCTV. The external LED monitor can display the current temperature, rail temperature, operating temperature, etc. The CCTV may be positioned at the spraying location. Accordingly, the spraying scene can be viewed through the CCTV, enabling remote control via the Internet.

[0128] The above power supply unit can supply power required for driving an electronic pump for spraying fine liquid, driving a blower fan, a forced converter, etc. The above power supply unit can generate power using a solar panel and store it in a battery. The power stored in the battery can be utilized when needed. Alternatively, the above power supply unit can draw power from a nearby source and utilize it.

[0130] Although the present invention has been described in detail using preferred embodiments, the scope of the invention is not limited to specific embodiments and should be interpreted by the appended claims. Furthermore, those skilled in the art will understand that many modifications and variations are possible without departing from the scope of the invention. Explanation of the symbols

[0132] 410: Temperature sensor 430: Controller 450: Server

Claims

Claim 1 A railway rail cooling system controlled via intelligent IoT through an administrator terminal to spray cooling water onto an overheated railway rail, comprising: a moisture collecting member for collecting moisture from the air; a recovery member for recovering cooling water sprayed onto the railway rail; a cooling water storage unit for receiving and storing cooling water from the moisture collecting member and the recovery member; a spraying unit for converting the cooling water stored in the cooling water storage unit into a fine liquid and spraying it; a temperature sensor for measuring the temperature of the railway rail; a controller for controlling the spraying of the cooling water according to the temperature of the railway rail measured by the temperature sensor; and a server communicating with the administrator's terminal, wherein the spraying unit comprises a plurality of first fine liquid spray nozzles disposed adjacent to the first railway rail and transporting cooling water between an inner tube and an outer tube. A railway rail cooling system for controlling the temperature of a railway rail, comprising: a plurality of second fine liquid nozzles arranged adjacent to a second railway rail and transporting cooling water between an inner tube and an outer tube; a cooling water nozzle for spraying the cooling water inside the first and second fine liquid nozzles; a pump for transporting cooling water from the cooling water supply unit to the cooling water nozzle; a blower fan arranged inside the inner tube to compress and transport air from one end of the inner tube to the other end; and a rotating member for controlling the direction of the first and second fine liquid nozzles using a rotating shaft, wherein the cooling water nozzle sprays a fine liquid in the form of a mist, which is a mixture of the cooling water inside the first and second fine liquid nozzles and the compressed air in the inner tube compressed by the blower fan. Claim 2 A railway rail cooling system according to claim 1, wherein a plurality of first fine liquid nozzles are formed in a plurality spaced apart at regular intervals, and adjacent first fine liquid nozzles spray the fine liquid toward opposite directions, and a plurality of second fine liquid nozzles are formed in a plurality spaced apart at regular intervals, and adjacent second fine liquid nozzles spray the fine liquid toward opposite directions. Claim 3 A railway rail cooling system according to claim 2, wherein the controller controls the spraying of cooling water onto the railway rail when the temperature value of the railway rail measured by the temperature sensor is higher than a preset first temperature, and controls the non-spraying of cooling water onto the railway rail when the temperature value of the railway rail measured by the temperature sensor is lower than a preset second temperature. Claim 4 A railway rail cooling system according to claim 1, wherein the controller automatically maintains the level of the cooling water, and when the supply of the cooling water is restricted, transmits a cooling water shortage alarm to the administrator's terminal via the server. Claim 5 A railway rail cooling method controlled by intelligent IoT to spray cooling water onto an overheated railway rail comprises: a step in which a moisture collecting member collects moisture from the air; a step in which a recovery member recovers the cooling water sprayed onto the railway rail; a step in which a cooling water storage unit receives and stores cooling water from the moisture collecting member and the recovery member; a step in which the temperature of the railway rail is measured; a step in which the spraying of the cooling water is controlled according to the measured temperature of the railway rail; a step in which a spraying unit converts the cooling water stored in the cooling water storage unit into a fine liquid and sprays it; and a step in which the temperature of the railway rail and whether the cooling water is sprayed are transmitted to an administrator, wherein the spraying unit comprises a plurality of first fine liquid spray nozzles disposed adjacent to the first railway rail and transporting cooling water between an inner tube and an outer tube; A railway rail cooling method comprising: a plurality of second fine liquid nozzles arranged adjacent to a second railway rail and transferring cooling water between an inner tube and an outer tube; a cooling water nozzle that sprays the cooling water inside the first and second fine liquid nozzles; a pump that transfers cooling water from the cooling water supply unit to the cooling water nozzle; a blower fan arranged inside the inner tube to compress and transfer air from one end of the inner tube to the other end; and a rotating member that controls the direction of the first and second fine liquid nozzles using a rotating shaft, wherein the cooling water nozzle sprays a fine liquid in the form of a mist, which is a mixture of the cooling water inside the first and second fine liquid nozzles and the compressed air in the inner tube compressed by the blower fan.

Images