De-icing device for railway switch area

Abstract

This application relates to the field of clearing ice and snow from railway turnouts, specifically to a de-icing device suitable for railway turnout areas. The high-temperature, high-speed airflow ejection assembly of the de-icing device includes a body, a fuel supply assembly, an ignition element, and an air supply element. The body forms an injection port, a combustion chamber fluidly connected to the injection port, and an airflow channel fluidly connected to the injection port. The fuel supply assembly provides fuel droplets to the combustion chamber; the ignition element ignites the fuel droplets; and the air supply element provides a high-speed airflow to the combustion chamber to form a high-temperature, high-speed airflow. It is also configured to provide a high-speed airflow to the airflow channel, where the high-speed airflow mixes with the high-temperature, high-speed airflow at the injection port and is ejected outwards. The high-temperature, high-speed airflow ejection assembly provided by this application can melt ice on railway tracks using a high-temperature, high-speed airflow. Simultaneously, the high-speed airflow disperses or dries the water from the melted ice, thus improving the efficiency of snow and ice removal.

Description

Technical Field

[0001] Embodiments of this application relate to the field of clearing ice and snow from railway turnouts, and more specifically to a de-icing device suitable for railway turnout areas. Background Technology

[0002] The statements herein are provided merely as background information in connection with this application and do not necessarily constitute prior art.

[0003] Railway turnouts are track connection devices in railway track structures. In winter, ice and snow on railway turnouts can cause them to malfunction, affecting railway transport efficiency. Therefore, it is necessary to remove the ice and snow from railway turnouts during winter. In winter, de-icing and snow removal devices are typically used to remove ice and snow from railway turnouts.

[0004] Currently, the technology for removing ice and snow from railway switches using de-icing devices still has many limitations. Summary of the Invention

[0005] A brief overview of this application is provided below to offer a basic understanding of certain aspects thereof. It should be understood that this overview is not an exhaustive summary of the application. It is not intended to identify key or essential parts of the application, nor is it intended to limit its scope. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.

[0006] To address the aforementioned issues, embodiments of this application provide a high-temperature, high-speed airflow ejection assembly and a de-icing device suitable for railway turnout areas.

[0007] In a first aspect, embodiments of this application provide a high-temperature, high-speed airflow ejection assembly, comprising a body, a fuel supply assembly, an ignition element, and an air supply element. The body forms an injection port, a combustion chamber fluidly connected to the injection port, and an airflow channel fluidly connected to the injection port on the radially outer side of the combustion chamber; the fuel supply assembly is used to supply fuel droplets to the combustion chamber; the ignition element is used to ignite the fuel droplets in the combustion chamber; the air supply element is used to supply a high-speed airflow to the combustion chamber so that the fuel droplets can burn in the combustion chamber to form a high-temperature, high-speed airflow, and the air supply element is further configured to supply a high-speed airflow to the airflow channel, wherein the high-speed airflow in the airflow channel is heated by heat emitted from the combustion chamber and mixed with the high-temperature, high-speed airflow at the injection port before being ejected outward.

[0008] The high-temperature, high-speed airflow ejection assembly provided in this application generates a high-temperature, high-speed airflow by burning fuel droplets and high-speed airflow within the combustion chamber, significantly increasing the outlet air temperature and velocity. By forming an airflow channel in fluid communication with the injection port on the radially outer side of the combustion chamber, and supplying high-speed airflow to the airflow channel via an air supply component, the high-speed airflow in the airflow channel can carry away the heat dissipated from the combustion chamber, preventing excessively high outer surface temperatures and avoiding safety hazards. Simultaneously, the high-speed airflow in the airflow channel is heated by the heat dissipated from the combustion chamber, and the heated high-speed airflow mixes with the high-temperature, high-speed airflow from the combustion chamber at the injection port before being ejected. This not only makes efficient use of the heat generated by fuel combustion but also further increases the flow rate and velocity of the ejected airflow. The high-temperature, high-speed airflow ejection assembly provided in this application can melt ice on railway tracks using the high-temperature, high-speed airflow. Simultaneously, the high-speed airflow disperses or dries the melted water, preventing secondary freezing and significantly improving de-icing efficiency.

[0009] Secondly, embodiments of this application provide a de-icing device suitable for railway turnout areas, which includes a high-temperature high-speed airflow ejection assembly provided in the embodiments of the first aspect of this application, configured to provide high-temperature high-speed airflow to the railway turnout. Attached Figure Description

[0010] Other objects and advantages of this application will become apparent from the following description of embodiments of this application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of this application.

[0011] Figure 1 This is a cross-sectional schematic diagram of a high-temperature, high-speed gas ejection assembly provided in an embodiment of this application; Figure 2 yes Figure 1 An exploded view of the high-temperature, high-speed gas ejection assembly is shown. Figure 3 yes Figure 2 An enlarged schematic diagram of the first windshield component is shown; Figure 4 This is a schematic diagram of the de-icing device provided in an embodiment of this application.

[0012] Explanation of reference numerals in the attached figures: 100. High-temperature, high-speed airflow ejection assembly; 101. Injector; 102. Combustion chamber; 103. Airflow passage; 10. Body; 11. Inner cylinder; 12. First windbreak component; 120. Windbreak section; 1201. Windbreak body; 12011. Central through hole; 12012. Clearance notch; 12013. First ventilation hole; 12014. Second ventilation hole; 1202. Mounting part; 121. Air volume adjustment part; 1211. First air volume adjustment hole; 1212. Second air volume adjustment hole; 13. Second windbreak component; 131. Annular windbreak component; 132. Conical windbreak component; 14. Outer shell; 141. First conical section; 142. First straight cylindrical section; 143. Second conical section; 144. Second straight cylindrical section; 145. End cap; 146. Sealing element; 15. Thermal insulation components; 20. Fuel supply assembly; 21. Nozzle; 22. Fuel supply line; 23. Air supply line; 24. Adapter; 25. T-connector; 30. Ignition component; 40. Air supply component; 50. Handle; 60. Grip element; 1000. De-icing device; 200. Mobile body; 210. Mobile platform; 231. Casters; 240. Switching component; 241. Rod; 242. Operating lever; 243. Reset component; 244. Positioning component; 2441. Positioning rod; 2442. Fixing clip; 2443. Movable clip; 250, First moving component; 2501, First track wheel; 2502, Connecting rod; 2503, Second track wheel; 300. Moving parts; 310. Telescopic parts; 320. Rotating parts; 330. Mounting brackets; 340. Mounting plates; 400, fuel container; 500, motor; 600, electrical cabinet; 700, generator.

[0013] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0014] Exemplary embodiments of this application will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such actual embodiment to achieve the developer's specific goals, such as complying with constraints related to the system and business, and these constraints may vary depending on the implementation. Furthermore, it should be understood that while development work can be very complex and time-consuming, such development work is merely a routine task for those skilled in the art who benefit from the content of this application.

[0015] It should also be noted that, in order to avoid obscuring this application with unnecessary details, only the equipment structure and / or processing steps closely related to the solution according to this application are shown in the accompanying drawings, while other details that are not closely related to this application are omitted.

[0016] In related technologies, the airflow emitted by de-icing devices has a low temperature and a small flow rate, resulting in low efficiency in removing ice and snow.

[0017] To address the aforementioned issues, embodiments of this application provide a high-temperature, high-speed airflow ejection assembly and a de-icing device suitable for railway turnout areas.

[0018] See Figure 1 and Figure 2 , Figure 1 This is a cross-sectional schematic diagram of a high-temperature, high-speed gas ejection assembly provided in an embodiment of this application. Figure 2 yes Figure 1 The diagram shows an exploded view of a high-temperature, high-speed airflow ejection assembly. The high-temperature, high-speed airflow ejection assembly 100 may include a body 10, a fuel supply assembly 20, an ignition element 30, and an air supply element 40. The body forms an injection port 101, a combustion chamber 102 fluidly connected to the injection port 101, and an airflow channel 103 fluidly connected to the injection port 101 on the radially outer side of the combustion chamber 102. The fuel supply assembly 20 supplies fuel droplets to the combustion chamber 102. The ignition element 30 ignites the fuel droplets within the combustion chamber 102. The air supply element 40 supplies a high-speed airflow to the combustion chamber 102, enabling the fuel droplets to burn within the combustion chamber 102 to form a high-temperature, high-speed airflow. The air supply element 40 is also configured to supply a high-speed airflow to the airflow channel 103, where the high-speed airflow is heated by heat radiated from the combustion chamber 102 and mixed with the high-temperature, high-speed airflow at the injection port 101 before being ejected outwards.

[0019] The high-temperature, high-speed airflow ejection assembly 100 provided in the embodiments of this application can form a high-temperature, high-speed airflow by burning fuel droplets and high-speed airflow in the combustion chamber 102, which greatly improves the outlet air temperature and flow rate. By forming an airflow channel 103 in fluid communication with the injection port 101 on the radially outer side of the combustion chamber 102, and supplying a high-speed airflow to the airflow channel 103 through the air supply component 40, the high-speed airflow in the airflow channel 103 can carry away the heat dissipated by the combustion chamber 102, avoiding excessively high outer surface temperature of the body 10 and avoiding safety hazards. When the airflow channel 103 is not provided, in order to ensure that the fuel is fully burned in the combustion chamber 102, the flow rate of the airflow flowing out of the combustion chamber 102 is usually not high, which will result in a small flow rate of the ejected high-temperature, high-speed airflow. The embodiments of this application, by setting up an airflow channel 103, allow high-speed airflow in the airflow channel 103 to be heated by heat emitted from the combustion chamber 102. The heated high-speed airflow mixes with the high-temperature, high-speed airflow from the combustion chamber 102 at the injection port 101 and is ejected outward. This not only makes efficient use of the heat generated by fuel combustion but also further increases the flow rate and velocity of the ejected airflow. The high-temperature, high-speed airflow ejection assembly provided by the embodiments of this application can melt ice on railway tracks using high-temperature, high-speed airflow. Simultaneously, the high-speed airflow disperses or dries the melted water, preventing secondary freezing and significantly improving the efficiency of de-icing and snow removal.

[0020] In some embodiments, the high-temperature high-speed airflow ejection assembly 100 may also include a handle 50 for an operator to hold, thereby enabling close-range de-icing and snow removal in complex areas or stubborn ice accumulation.

[0021] In some embodiments, the handle 50 is disposed on the body 10 and positioned away from the nozzle 101 to prevent the operator from being burned by the high-temperature, high-speed airflow ejected from the nozzle 101 when holding the handle, thus ensuring the operator's safety when holding the handle.

[0022] In some embodiments, the temperature of the high-temperature, high-speed gas stream ejected from the nozzle 101 can be 300~400°C, and the flow velocity can reach 20~30m / s.

[0023] Ignition element 30 is, for example, an electric ignition needle. Air supply element 40 is, for example, a centrifugal fan.

[0024] In some embodiments, the fuel supply assembly 20 may include a nozzle 21, a fuel supply line 22, and an air supply line 23. The nozzle 21 is used to inject fuel droplets into the combustion chamber 102; the fuel supply line 22 is used to supply fuel to the nozzle 21; and the air supply line 23 is used to supply a high-speed airflow to the nozzle 21, so that the negative pressure formed by the high-speed airflow draws fuel from the fuel supply line 22 into the nozzle 21, thereby forming fuel droplets. In this embodiment, the above arrangement allows fuel to be drawn into the nozzle 21 in the form of droplets and enter the combustion chamber 102 in the form of droplets, which is beneficial for the complete combustion of fuel in the combustion chamber 102. Simultaneously, the air supply line 23 can supply a high-speed airflow to the combustion chamber 102. The high-speed airflow entering the combustion chamber 102 is heated within the combustion chamber 102 to form a high-temperature, high-speed airflow, which exits from the injection port 101, achieving the spraying of a high-temperature, high-speed airflow to remove ice and snow.

[0025] In some embodiments, the fuel supply assembly 20 may further include an adapter 24 and a tee connector 25. One port of the tee connector 25 is connected to the nozzle 21 via the adapter 24, and the other two ports of the tee connector 25 are connected to the fuel supply line 22 and the air supply line 23, respectively. The port of the tee connector 25 connected to the fuel supply line 22 and the port connected to the adapter 24 are on the same straight line, which facilitates the intake of fuel into the nozzle 21.

[0026] In some embodiments, the body 10 may include an inner cylinder 11, a first wind deflector 12, a second wind deflector 13, an outer shell 14, and a heat insulation member 15. The first wind deflector 12 and the second wind deflector 13 are respectively disposed on opposite axial sides of the inner cylinder 11, forming a combustion chamber 102 together with the inner cylinder 11; wherein the first wind deflector 12 is disposed facing the injection port 101, and the second wind deflector 13 is disposed away from the injection port 101. The outer shell 14 is disposed on the radially outer side of the inner cylinder 11, forming an airflow channel 103 between the outer shell 14 and the inner cylinder 11, and the outer shell 14 forms the injection port 101; the heat insulation member 15 is disposed on the inner wall of the outer shell 14 for heat insulation; the first wind deflector 12 is also configured to regulate the airflow of the high-speed airflow provided by the air supply member 40 into the combustion chamber 102.

[0027] In this embodiment, by setting the first baffle 12 and the second baffle 13 to form a combustion chamber 102 together with the inner cylinder 11, the combustion chamber 102 can be relatively closed, which is conducive to the fuel and high-speed airflow staying in the combustion chamber 102 for complete combustion, and avoids the fuel being carried out by the high-speed airflow before it is fully burned, thus facilitating the full utilization of fuel and the formation of high-temperature high-speed airflow. By setting the first baffle 12 to be able to adjust the airflow of the high-speed airflow provided by the air supply 40 into the combustion chamber 102, the high-speed airflow flow rate suitable for the operating environment can be selected by adjustment before use, which is conducive to the complete combustion of fuel in the combustion chamber 102 to form a high-temperature high-speed airflow.

[0028] The embodiments of this application, by providing a heat insulation component 15 on the inner wall of the outer casing 14, can prevent the heat emitted by the combustion chamber 102 from being transferred to the outer casing 14, thereby reducing heat loss; by providing a heat insulation component 15, the temperature of the outer casing 14 can be further prevented from becoming too high, preventing the operator from being burned by the outer casing 14 when holding it, and ensuring the safety of the operator when holding it.

[0029] In some embodiments, a handle 50 is disposed on the housing 14.

[0030] The heat insulation component 15 can be made of mica material. The inventors of this application have discovered that, compared with conventional alumina heat insulation material, the heat insulation component 15 made of mica is more likely to carry away the heat emitted by the combustion chamber 102 when the high-speed airflow in the airflow channel 103 flows over the surface of the heat insulation component 15, thereby ensuring the heat insulation effect with a smaller thickness of the heat insulation component 15.

[0031] In some embodiments, the inner cylinder 11 is coaxially disposed within the outer casing 14. The body 10 may also include a plurality of connectors for coaxially and fixedly connecting the inner cylinder 11 to the outer casing 14.

[0032] See Figure 2 and Figure 3 , Figure 3 yes Figure 2 The enlarged schematic diagram of the first wind deflector 12 shown illustrates that, in some embodiments, the first wind deflector 12 may include a wind deflector portion 120 and an airflow regulating portion 121. The wind deflector portion 120 is connected to the inner cylinder 11 and forms the combustion chamber 102 together with the inner cylinder 11 and the second wind deflector 13. The wind deflector portion 120 forms a central through-hole 12011 and a plurality of ventilation holes located radially outward from the central through-hole 12011. The airflow regulating portion 121 rotatably equips the wind deflector 120 and has a plurality of airflow regulating holes, each corresponding to a ventilation hole, to adjust the airflow of the ventilation holes by adjusting the degree of offset between the airflow regulating holes and the corresponding ventilation holes. The nozzles 21 of the ignition element 30 and the fuel supply assembly 20 are located at the central through hole 12011; high-speed airflow from the air supply element 40 enters the combustion chamber 102 through the ventilation holes and the central through hole 12011.

[0033] In this embodiment, the airflow into the combustion chamber 102 can be adjusted by rotating the airflow adjustment unit 121 relative to the airflow baffle 120 before assembly, thereby adjusting the size of each ventilation hole. This allows for the selection of an airflow suitable for the operating environment before use, which is beneficial for the complete combustion of fuel in the combustion chamber 102, forming a high-temperature, high-speed airflow. When the airflow adjustment holes and ventilation holes completely overlap in the direction of the high-speed airflow, the amount of high-speed airflow entering the combustion chamber 102 reaches its maximum. When the airflow adjustment holes and ventilation holes partially overlap in the direction of the high-speed airflow, the amount of high-speed airflow entering the combustion chamber 102 decreases. When there is no overlap between the airflow adjustment holes and ventilation holes in the direction of the high-speed airflow, the amount of high-speed airflow entering the combustion chamber 102 reaches its minimum. At this time, the high-speed airflow enters the combustion chamber 102 only through the central through-hole 12011.

[0034] In some embodiments, the ventilation holes may include a plurality of first ventilation holes 12013 and a plurality of second ventilation holes 12014. Each first ventilation hole 12013 is equally spaced along a first circumference; each second ventilation hole 12014 is equally spaced along a second circumference, the diameter of which is larger than the diameter of the first circumference. The second circumference, the first circumference, and the central through-hole 12011 are arranged coaxially. This arrangement facilitates a more uniform flow of air into the combustion chamber 102 along both the radial and circumferential directions of the windbreak portion 120, thereby promoting a more uniform mixing and combustion of the high-speed airflow entering from the ventilation holes and the high-speed airflow entering the combustion chamber 102 via the central through-hole 12011 with the fuel.

[0035] Accordingly, the air volume regulating unit 121 may include a plurality of first air volume regulating holes 1211 and a plurality of second air volume regulating holes 1212, wherein each first air volume regulating hole 1211 is equally spaced along the first circumference; and each second air volume regulating hole 1212 is equally spaced along the second circumference.

[0036] In some embodiments, the airflow regulating section 121 is an annular part with a radial inner diameter larger than the radial inner diameter of the central through hole 12011, so as not to affect the nozzle 21 and the ignition element 30 from entering the combustion chamber 102 from the radial inner side of the airflow regulating section 121.

[0037] In some embodiments, the wind deflector 120 may include an annular wind deflector body 1201 and a mounting portion 1202 provided for mounting the wind deflector body 1201 onto the inner cylinder 11. The wind deflector body 1201 is also configured to form a clearance notch 12012 communicating with the central through hole 12011, through which the ignition element 30 extends into the combustion chamber 102.

[0038] In some embodiments, the high-temperature high-speed gas ejection assembly 100 may further include a fixing member for positioning the nozzle 21 and the ignition member 30 in the windbreak portion 120.

[0039] Ignition element 30 can be an electric ignition needle.

[0040] See Figure 1 and Figure 2 In some embodiments, the second baffle 13 may include an annular baffle 131 and a conical baffle 132. The annular baffle 131 is disposed away from the injection port 101 relative to the conical baffle 132. The conical baffle 132 and the annular baffle 131 are spaced apart, and the high-temperature, high-speed airflow in the combustion chamber 102 flows to the injection port 101 through the gap between them. In such an embodiment, by providing the annular baffle 131 and the conical baffle 132, the airflow at the injection port 101 can be prevented from entering the combustion chamber 102, avoiding turbulence and preventing interference with the ejection of the high-temperature, high-speed airflow. At the same time, the conical baffle 132 and the annular baffle 131 are spaced apart to form a gap between them, ensuring that the high-temperature, high-speed airflow formed in the combustion chamber 102 can be ejected.

[0041] In some embodiments, the outer casing 14 may include: a first conical section 141, a first straight section 142, a second conical section 143, and a second straight section 144, wherein the inner diameter of the second straight section 144 is larger than the inner diameter of the first straight section 142. The first conical section 141 forms an injection port 101; the first straight section 142 connects the first conical section 141 and the second conical section 143 and is located radially outside the inner cylinder 11, and a heat insulation member 15 is disposed on the inner wall of the first straight section 142; the second straight section 144 is connected to the second conical section 143, and an air supply member 40 is detachably mounted on the end of the second straight section 144 away from the second conical section 143. In such an embodiment, the second conical section 143 facilitates the guidance of the high-speed airflow provided by the air supply member 40 into the airflow passage 103 and the combustion chamber 102. Furthermore, since the air supply component 40 is detachably installed at the end of the second straight section 144 away from the second conical section 143, the ventilation volume of the combustion chamber 102 can be adjusted by rotating the air volume regulating unit 121 before use by removing the air supply component 40 from the end of the second straight section 144; since the inner diameter of the second straight section 144 is larger, it is easier for the operator to rotate the air volume regulating unit 121.

[0042] In some embodiments, the body 10 may further include a mounting element for detachably mounting the air supply element 40 to the end of the second straight section 144 away from the second tapered section 143.

[0043] In some embodiments, the mounting component may include an end cap 145 and a seal 146. The air outlet of the air supply component 40 passes through the seal 146 and enters the second straight section 144. The main body of the air supply component 40 is located between the end cap 145 and the seal 146. Fasteners are detachably connected to the second straight section 144 by passing through the mounting holes of the end cap 145, the mounting holes of the seal 146, and the threaded holes of the second straight section 144, thereby achieving a seal between the second straight section 144 and the air supply component 40.

[0044] In some embodiments, the side of the inner cylinder 11 facing the air supply member 40 protrudes axially relative to the first straight cylindrical section 142, allowing the first straight cylindrical section 142 to enter the interior of the second conical section 143. Compared to the side of the inner cylinder 11 facing the air supply member 40 being flush with the first straight cylindrical section 142, the above arrangement is more conducive to the high-speed airflow entering the second conical section 143 entering the airflow channel 103, preventing all the high-speed airflow from entering the combustion chamber 102, thereby enabling the first straight cylindrical section 142 to play a diversion role.

[0045] In some embodiments, the side of the inner cylinder 11 facing the first conical section 141 is flush with the first straight cylinder section 142, that is, the end face of the side of the inner cylinder 11 facing the first conical section 141 and the end face of the side of the first straight cylinder section 142 are located on the same plane. This arrangement is conducive to the full mixing of the high-speed airflow flowing out from the airflow channel 103 and the high-temperature high-speed airflow flowing out from the inner cylinder 11, and the airflow is ejected outward from the injection port 101 under the guidance of the first conical section 141.

[0046] In some embodiments, the second wind deflector 13 is located at the end of the inner cylinder 11 facing the spray nozzle 101.

[0047] In some embodiments, the first wind deflector 12 is located inside the inner cylinder 11 and has a predetermined distance between it and the end of the inner cylinder 11 facing the air supply member 40. This arrangement can prevent the turbulence formed by the high-speed airflow at the second conical section 143 from entering the combustion chamber 102, and is more conducive to the high-speed airflow in the second conical section 143 entering the combustion chamber 102 more evenly after flowing into the inner cylinder 11. The predetermined distance can be, for example, 4-6 cm.

[0048] In some embodiments, the insulation member 15 may be the same length as the first cylindrical section 142, with both end faces flush, to provide better insulation.

[0049] Embodiments of this application also provide a de-icing device suitable for railway turnout areas, which may include the high-temperature high-speed airflow ejection assembly 100 provided in any embodiment of this application, configured to provide high-temperature high-speed airflow to the railway turnout. The de-icing device provided in the embodiments of this application can use the high-temperature high-speed airflow ejection assembly 100 to provide high-temperature high-speed airflow to the track, thereby melting and drying the snow, frozen snow, and frozen ice on the railway turnout to remove ice and snow, ensuring the normal operation of the railway turnout.

[0050] See Figure 4 , Figure 4 This is a schematic diagram of the de-icing device provided in an embodiment of this application. In some embodiments, the de-icing device 1000 may further include a movable body 200, a moving component 300, a high-speed airflow supply component, a fuel container 400, and a generator 700. The movable body 200 is configured to move along a track and the ground; the high-temperature high-speed airflow ejection assembly 100 is detachably mounted on the moving component 300, so as to be movably disposed on the movable body 200 via the moving component 300; the high-speed airflow supply component is disposed on the movable body 200 for providing high-speed airflow to the fuel supply assembly 20 of the high-temperature high-speed airflow ejection assembly 100; the fuel container 400 is disposed on the movable body 200 for containing fuel to supply fuel to the fuel supply assembly 20; and the generator 700 is disposed on the movable body 200 for providing power. In this embodiment, the high-temperature, high-speed airflow ejection component 100 is moved along the track and the ground by the mobile body 200, thereby facilitating the movement of the de-icing device 1000 to various locations on the track for de-icing and snow removal. Simultaneously, the high-temperature, high-speed airflow ejection component 100 is movably mounted on the mobile body 200 via the moving part 300, expanding its operating range and facilitating large-scale de-icing and snow removal. The generator 700 further enhances the long-distance operation capability of the mobile body 200. Because the high-temperature, high-speed airflow ejection component 100 is detachably mounted on the moving part 300, it can move with the mobile body 200 and can also be removed for handheld close-range operation in areas inaccessible to the mobile body 200. This allows the de-icing device 1000 to adapt to the track's operating environment, facilitating efficient and comprehensive removal of ice and snow from the track.

[0051] High-speed airflow supply components include, for example, air pumps.

[0052] The generator 700 is, for example, a gasoline generator. The generator 700 is capable of supplying power to the air supply unit 40, the ignition unit 30, and the high-speed airflow supply unit.

[0053] In some embodiments, the de-icing device 1000 may further include a controller and an electrical cabinet 600. The controller is used to control the power supply of the de-icing device 1000, the power of the high-speed airflow supply component, and the power of the air supply component 40, etc. The high-speed airflow supply component and the controller are disposed in the electrical cabinet 600.

[0054] See Figure 4 In some embodiments, the mobile body 200 may include a mobile platform 210, a first mobile component 250, a second mobile component, and a switching element 240. The first mobile component 250 is configured to drive the mobile platform 210 to move along the track; the second mobile component is configured to drive the mobile platform 210 to move along the ground; the switching element 240 is configured to raise or lower the second mobile component relative to the mobile platform 210, thereby allowing the mobile platform 210 to move by either the first mobile component 250 or the second mobile component. In such embodiments, the second mobile component can be used to move the de-icing device 1000 from the ground to the track, and then the first mobile component 250 can be used to move the de-icing device 1000 along the track. By raising or lowering the second mobile component relative to the track using the switching element 240, the switching between moving the mobile platform 210 by the first mobile component 250 and moving the mobile platform 210 by the second mobile component can be achieved. This facilitates rapid switching of the mobile body 200 between moving along the track and moving along the ground, making it more suitable for de-icing railway switches.

[0055] See Figure 4 In some embodiments, the first moving component 250 may include a first track wheel 2501 rotatably disposed at the bottom of the moving platform 210, a connecting rod 2502, and a second track wheel 2503 connected to the connecting rod 2502. The connecting rod 2502 is used for detachable connection to the moving platform 210. The first track wheel 2501 and the second track wheel 2503 are used to travel on two basic tracks, respectively. In such embodiments, by providing the first track wheel 2501 and the second track wheel 2503, the track wheels can be used to travel directly on the tracks when removing ice and snow, facilitating the removal of ice and snow from the tracks. Since the connecting rod 2502 is detachably connected to the moving platform 210, the connecting rod 2502 and the second track wheel 2503 can be detached from the moving platform 210 when walking on the ground, facilitating movement.

[0056] See Figure 4In some embodiments, the second moving component includes multiple sets of casters 231. There can be multiple switching elements 240, each switching element 240 used to raise or lower each set of casters 231 relative to the moving platform 210. In such embodiments, by providing casters 231, the de-icing device 1000 can move flexibly on the ground, facilitating its movement to locations requiring de-icing; and by raising or lowering each set of casters 231 relative to the moving platform 210 via each switching element 240, the switching efficiency of the de-icing device 1000 between two movement modes is improved.

[0057] See Figure 4 In some embodiments, the switching element 240 may include multiple levers 241, an operating lever 242, multiple reset elements 243, and a positioning element 244. Each lever 241 is connected to a caster wheel 231, the operating lever 242 is connected to each lever 241, each reset element 243 provides an upward force to the corresponding caster wheel 231, and the positioning element 244 positions the operating lever 242 at the current height. In such embodiments, pressing down the operating lever 242 can move the connected lever 241 downward, thereby causing each caster wheel 231 to descend relative to the moving platform 210; the upward force provided by the reset element 243 can raise the connected caster wheel 231 relative to the moving platform 210, simplifying operation; simultaneously, the positioning element 244 positions the operating lever 242 at the current height, preventing the caster wheel 231 from rising or falling again relative to the moving platform 210, thus avoiding interference with the normal movement of the de-icing device.

[0058] The reset member 243 is, for example, a spring. In some embodiments, each reset member 243 is fitted onto a corresponding rod 241 to provide an upward force to each caster wheel 231.

[0059] See Figure 4In some embodiments, the positioning member 244 may include a positioning rod 2441, a fixing clip 2442, and a movable clip 2443. The positioning rod 2441 is fixedly disposed on the moving platform 210; the fixing clip 2442 is fixedly disposed on the positioning rod 2441 to limit the highest position of the caster wheel 231; the movable clip 2443 is axially movable relative to the positioning rod 2441 and is disposed on the positioning rod 2441, forming a locking groove to limit the lowest position of the operating rod 242. In such embodiments, the fixing clip 2442 limits the highest position of the caster wheel 231 to prevent the caster wheel 231 from accidentally lowering after being raised, thus avoiding affecting the movement of the de-icing device 1000 on the track; and the movable clip 2443 limits the lowest position of the operating rod 242 to prevent the caster wheel 231 from accidentally raising after being lowered, thus avoiding affecting the movement of the de-icing device 1000 on the ground.

[0060] In some embodiments, the positioning rod 2441 and the movable clip 2443 are configured to form a thread, and the movable clip 2443 is threadedly connected to the positioning rod 2441 so that the movable clip 2443 can move axially relative to the positioning rod 2441 by rotating relative to the positioning rod 2441.

[0061] See Figure 4 In some embodiments, the moving component 300 may include a telescopic component 310 and a rotating component 320. The telescopic component 310 is used to drive the high-temperature high-speed airflow ejection assembly 100 to pitch, and the rotating component 320 is used to drive the high-temperature high-speed airflow ejection assembly 100 to swing left and right. In such embodiments, by driving the high-temperature high-speed airflow ejection assembly 100 to pitch using the telescopic component 310 and by driving the high-temperature high-speed airflow ejection assembly 100 to swing left and right using the rotating component 320, ice and snow in the gap between the main rail and the brake rail of the turnout can be removed.

[0062] The telescopic component 310 is, for example, an electric actuator. The generator 700 is also configured to supply power to the electric actuator.

[0063] In some embodiments, the moving component 300 may further include a mounting frame 330 and a mounting plate 340. The high-temperature, high-speed airflow ejection assembly 100 is detachably mounted on the mounting frame 330, which is disposed on one side of the mounting plate 340. A telescopic component 310 is disposed on the moving platform 210 and is configured to extend and retract. The extension and retraction of the telescopic component 310 pushes the mounting plate 340 to pitch, thereby causing the mounting frame 330 and the high-temperature, high-speed airflow ejection assembly 100 to pitch. A rotating component 320 is disposed on the mounting plate 340 and is configured to allow the mounting plate 340 to swing left and right, thereby causing the mounting frame 330 and the high-temperature, high-speed airflow ejection assembly 100 to swing left and right.

[0064] In some embodiments, the rotating component 320 may include a gear, a rack, and a motor 500. The rack is disposed on the mounting plate 340, and the motor 500 is configured to drive the gear to rotate, thereby enabling the mounting plate 340 to swing left and right through the meshing of the gear and rack, thereby driving the high-temperature high-speed airflow ejection assembly 100 to swing left and right.

[0065] In some embodiments, the mobile platform 210 is disposed on the grip 60 for an operator to grip and move the mobile platform 210.

[0066] When the de-icing device 1000 provided in the embodiments of this application is in use, the air pump and centrifugal fan 40 are started. The air pump draws kerosene from the fuel container 400 into the nozzle 21 through the fuel supply line 22 and atomizes it for spraying. At the same time, the electric ignition needle 30 continuously ignites the atomized kerosene. The centrifugal fan 40 sends a high-speed airflow to the combustion chamber 102 and the airflow channel 103. The high-speed airflow from the airflow channel 103 and the high-temperature, high-speed airflow from the combustion chamber 102 mix at the injection port 101 and are then ejected outwards. The ejected high-temperature, high-speed airflow can melt the ice on the railway tracks, and at the same time, the high-speed airflow disperses or dries the melted water, preventing the melted water from re-icing, thereby significantly improving the efficiency of de-icing and snow removal.

[0067] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0068] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A high-temperature, high-speed gas flow ejection assembly, characterized in that, include: The body forms an injection port, a combustion chamber in fluid communication with the injection port, and an airflow passage in fluid communication with the injection port on the radially outer side of the combustion chamber; A fuel supply assembly for supplying fuel atomized droplets to the combustion chamber; An ignition element for igniting fuel droplets in the combustion chamber; An air supply component is provided to provide a high-speed airflow to the combustion chamber so that the fuel droplets can burn in the combustion chamber to form a high-temperature, high-speed airflow. The air supply component is also configured to provide a high-speed airflow to the airflow channel, wherein the high-speed airflow in the airflow channel is heated by the heat emitted from the combustion chamber and mixed with the high-temperature, high-speed airflow at the injection port before being ejected outward.

2. The emission assembly according to claim 1, characterized in that, The fuel supply component includes: Nozzles are used to inject fuel mist into the combustion chamber; A fuel supply line for supplying fuel to the nozzle; The air supply line is used to provide a high-speed airflow to the nozzle, so as to use the negative pressure formed by the high-speed airflow to draw fuel from the fuel supply line into the nozzle, thereby forming the fuel droplets.

3. The emission assembly according to claim 1, characterized in that, The body includes: Inner cylinder; A first wind deflector and a second wind deflector are respectively disposed on both axial sides of the inner cylinder, forming the combustion chamber together with the inner cylinder. The first wind deflector is disposed facing the injection port, and the second wind deflector is disposed away from the injection port. The first wind deflector is configured to adjust the amount of high-speed airflow provided by the air supply component entering the combustion chamber. An outer shell is disposed radially outside the inner cylinder, and the airflow channel is formed between the outer shell and the inner cylinder; the outer shell forms the injection port. A heat insulation element is disposed on the inner wall of the outer casing for heat insulation.

4. The emission assembly according to claim 3, characterized in that, The first windbreak component includes a windbreak section and an airflow regulating section; The wind baffle is connected to the inner cylinder and is used to form the combustion chamber together with the inner cylinder and the second wind baffle; the wind baffle forms a central through hole and a plurality of ventilation holes located radially outside the central through hole; The airflow regulating part is rotatably provided with the windbreak part. The airflow regulating part is provided with a plurality of airflow regulating holes, and the plurality of airflow regulating holes correspond one-to-one with the plurality of ventilation holes, so as to adjust the airflow of the ventilation holes by the degree of offset between the airflow regulating holes and the corresponding ventilation holes. The nozzles of the ignition element and the fuel supply assembly are disposed at the central through hole; High-speed airflow from the air supply unit enters the combustion chamber through the plurality of ventilation holes and the central through-hole.

5. The emission assembly according to claim 4, characterized in that, The plurality of ventilation holes includes a plurality of first ventilation holes and a plurality of second ventilation holes. The plurality of first ventilation holes are arranged at equal intervals along the first circumference; The plurality of second ventilation holes are equally spaced along the second circumference, the diameter of the second circumference is larger than the diameter of the first circumference, and the second circumference, the first circumference, and the central through hole are arranged coaxially.

6. The emission assembly according to claim 3, characterized in that, The second wind deflector includes an annular wind deflector and a conical wind deflector. The annular wind deflector is disposed away from the injection port relative to the conical wind deflector. The conical wind deflector is spaced apart from the annular wind deflector. The high-temperature, high-speed airflow in the combustion chamber flows to the injection port through the gap between the two.

7. The emission assembly according to claim 3, characterized in that, The outer shell includes: a first conical section, a first straight cylindrical section, a second conical section, and a second straight cylindrical section, wherein the inner diameter of the second straight cylindrical section is larger than the inner diameter of the first straight cylindrical section; The first conical section forms the injection port; The first straight cylindrical section is used to connect the first tapered section and the second tapered section, and is located on the radial outer side of the inner cylinder; the heat insulation element is disposed on the inner wall of the first straight cylindrical section. The second straight section is connected to the second conical section, and the air supply component is detachably mounted at the end of the second straight section away from the second conical section.

8. The emission assembly according to claim 7, characterized in that, The inner cylinder protrudes axially relative to the first straight section on the side facing the air supply component; and / or The side of the inner cylinder facing the first conical section is flush with the first straight cylinder section.

9. A de-icing device suitable for railway turnout areas, characterized in that, include: The high-temperature high-speed airflow ejection assembly according to any one of claims 1-8 is configured to provide high-temperature high-speed airflow to a railway turnout.

10. The de-icing device according to claim 9, characterized in that, Also includes: The mobile unit is configured to move along tracks and the ground. The moving part, wherein the high-temperature high-speed airflow ejection assembly is detachably mounted on the moving part, so as to be movably disposed on the moving body via the moving part; A high-speed airflow supply component is disposed on the movable body and is used to supply high-speed airflow to the fuel supply component of the high-temperature high-speed airflow ejection component; A fuel container, disposed on the movable body, is used to hold fuel for supplying fuel to the fuel supply assembly; A generator, installed on the mobile body, is used to provide power.

11. The de-icing device according to claim 10, characterized in that, The mobile body includes: Mobile platform; The first moving component is configured to drive the moving platform to move along the track; The second moving component is configured to drive the moving platform to move along the ground. The switching element is configured to raise or lower the second moving component relative to the moving platform, thereby causing the moving platform to move by the first moving component or the second moving component.

12. The de-icing device according to claim 11, characterized in that, The first moving component includes: A first track wheel is rotatably mounted on the bottom of the mobile platform; A connecting rod and a second track wheel connected to the connecting rod, the connecting rod being detachably connected to the mobile platform; The first track wheel and the second track wheel are used to travel on two basic tracks respectively.

13. The de-icing device according to claim 11, characterized in that, The second moving component includes multiple sets of omnidirectional wheels; There are multiple switching components, each of which is used to raise or lower each set of omnidirectional wheels relative to the mobile platform.

14. The de-icing device according to claim 13, characterized in that, The switching component includes: Multiple rods, each of which is connected to a caster wheel; An operating lever, connected to each of the aforementioned levers; Multiple reset elements, each of which is used to provide an upward force to a corresponding one of the casters; A positioning element is used to position the operating lever at the current height.

15. The de-icing device according to claim 14, characterized in that, The positioning element includes: The positioning rod is fixedly installed on the mobile platform; A fixing clip is fixedly mounted on the positioning rod to limit the highest position of the caster wheel; A movable locking element is axially movable relative to the positioning rod and is disposed on the positioning rod. The movable locking element forms a locking groove to limit the lowest position of the operating rod.

16. The de-icing device according to claim 10, characterized in that, The moving component includes: The telescopic component is used to drive the pitching motion of the high-temperature, high-speed airflow ejection assembly. The rotating component is used to drive the high-temperature, high-speed airflow ejection assembly to swing left and right.

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