Snow melting and deicing device for turnout zone

Abstract

The invention belongs to the technical field of railways, and relates to a turnout zone snow melting and deicing device which comprises a shell, a supercharging device and a driving device connected with the supercharging device, the shell comprises a first cavity, the first cavity is arranged to be a sealed cavity, the driving device and the supercharging device are both arranged in the first cavity, the driving device is provided with at least one gas channel, and the supercharging device is arranged in the first cavity. The air inlet end of the air channel is communicated with the outside of the first cavity, the air outlet end of the air channel is communicated with the inside of the first cavity, the air outlet of the supercharging device is communicated with the outside of the shell, the driving device drives the supercharging device to act, and negative pressure is generated at the air inlet of the supercharging device. Air outside the first cavity enters the first cavity through the air channel, is sucked by the supercharging device, is compressed in the supercharging device and is sprayed out of the air outlet of the supercharging device, the driving device and the supercharging device rotate synchronously, the compressed high-pressure air is sprayed out of the air outlet of the supercharging device at a high speed, and installation and use are convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of railways, and in particular relates to a snow melting and ice removing device for turnout areas. Background Art

[0002] With the continuous development of the industrial production and manufacturing fields, the requirements for ventilation equipment and air compression equipment are getting higher and higher. For ventilation in industries such as mines, railways, highways, tunnel construction, and narrow working conditions, traditional screw air compressors need to be linked with a main engine, an air tank, and a pneumatic fan to achieve the purpose of ventilation, with large air consumption and high costs; electric fans consume a large amount of electricity, have a large volume, a heavy mass, and a large amount of installation and maintenance work. Summary of the Invention

[0003] In view of the above problems, the present invention provides a snow melting and ice removing device for turnout areas to solve the above or other previous problems existing in the prior art.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is: a snow melting and ice removing device for turnout areas, including a housing, a pressurizing device, and a driving device connected to the pressurizing device. The housing includes a first cavity, and the first cavity is set as a sealed cavity. The driving device and the pressurizing device are both arranged in the first cavity. The driving device is provided with at least one gas passage. The intake end of the gas passage is communicated with the outside of the first cavity, and the outlet end of the gas passage is communicated with the inside of the first cavity. The air outlet of the pressurizing device is communicated with the outside of the housing. The driving device drives the pressurizing device to act, and a negative pressure is generated at the air inlet of the pressurizing device. Under the action of the pressure difference inside and outside the first cavity, the gas outside the first cavity enters the first cavity through the gas passage, is inhaled by the pressurizing device and compressed inside the pressurizing device, and is ejected from the air outlet of the pressurizing device.

[0005] Further, the driving device includes a driving housing and a power member arranged inside the driving housing. The gap between the driving housing and the outer wall of the power member is configured as a gas passage. One end of the driving housing and the corresponding end of the power member are set as an open structure, constructing the intake end of the gas passage.

[0006] Further, the number of gas passages is one, and the gas passage is of an annular channel structure; or, the number of gas passages is multiple, and the multiple gas passages are sequentially arranged along the circumferential direction of the power member. A plurality of partition members are arranged on the inner wall of the driving housing along the circumferential direction of the driving housing. The partition members are in contact with the outer wall of the power member, and the gap between adjacent partition members constructs a gas passage.

[0007] Further, the other end of the driving housing and the corresponding end of the power member are set as a closed structure, and heat dissipation holes are provided on the side wall of the driving housing corresponding to the gas passage for gas outflow.

[0008] Furthermore, the supercharging device's turbocharging structure includes a volute and a turbine disposed within the volute. The turbine is mounted on the output shaft of the power component. The volute is connected to the drive housing, and a sealing structure is provided at the connection between the volute and the drive housing to seal this connection.

[0009] Furthermore, the housing further includes a second cavity. The first cavity and the second cavity are separated by a partition plate. An air vent is provided on the partition plate, and the air vent is connected to the intake end of the gas passage so that the gas in the second cavity enters the gas passage through the air vent and the intake end of the gas passage.

[0010] Furthermore, the second cavity is provided with at least one intake hole. The second cavity communicates with the outside of the housing through the intake hole, and a filtering device is provided at the intake hole to filter the gas entering the second cavity.

[0011] Furthermore, it further includes a frequency conversion device and a switch device connected to each other. The frequency conversion device and the switch device are disposed within the second cavity. The switch device is connected to the power supply to control the on / off of the circuit. The frequency conversion device is connected to the drive device to control the rotation speed and torque of the drive device.

[0012] Furthermore, it further includes a rain and snow sensor and a relay. The rain and snow sensor is disposed outside the housing. The rain and snow sensor is connected to the relay, and the relay is connected to the switch device. The relay controls the on / off of the switch device according to the detection signal of the rain and snow sensor.

[0013] Furthermore, the switch device is a contactor and the drive device is a motor.

[0014] Due to the adoption of the above technical solution, the turnout area snow melting and deicing device has a simple structure and is easy to install. It has a supercharging device and a drive device. The drive device drives the supercharging device to rotate. The turbine of the supercharging device is installed on the output shaft of the drive device. The drive device and the supercharging device are coaxial, enabling the drive device and the supercharging device to rotate synchronously. The supercharging device is a turbocharging structure that compresses air, and the compressed high-pressure air is ejected from the air outlet of the supercharging device at high speed; It has a partition board. The internal space of the housing is divided into a first cavity and a second cavity by the partition board. The first cavity is set as a sealed cavity structure. The pressurizing device and the driving device are arranged in the first cavity. The second cavity is set to communicate with the outside. A negative pressure is generated at the air inlet of the pressurizing device, so that the outside air is sucked into the first cavity through the second cavity and the driving device under the action of the pressure difference inside and outside the housing, and then is sucked into the pressurizing device for compression. When the air flows through the driving device, it exchanges heat with the driving device, and the driving device dissipates heat. The driving device drives the turbine to operate to increase the pressure of the gas. The pressurizing method of the driving device (motor) driving the pressurizing device (turbocharging structure) can stably provide the required pressurizing effect, avoiding the "turbo lag" phenomenon of traditional turbochargers. Compared with traditional fans and screw air compressors, it is more energy-efficient, has a small volume, does not require an air tank, is convenient for installation and use, and is easy to maintain; The first cavity is a sealed box structure. The driving device is provided with a gas passage, and the inlet end of the gas passage is an open structure, and the other end of the gas passage is a closed structure and does not communicate with the outside. Heat dissipation holes are provided on the side wall of the gas passage, and ventilation holes are provided at corresponding positions on the partition board. The through holes correspond to and communicate with the inlet end of the gas passage, so that the gas passage communicates with the second cavity, so that the gas entering the second cavity enters the gas passage through the ventilation holes, flows in the gas passage, and flows out from the heat dissipation holes, enters the first cavity, and is sucked into the interior of the pressurizing device under the negative pressure of the air inlet of the pressurizing device, controlling the flow path of the gas, so that the outside gas enters the pressurizing device along the flow path, so that the pressurizing device compresses and accelerates the gas, so that the gas is ejected at a high speed to remove the snow accumulation in the turnout area. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of a turnout area snow melting and ice removing device according to an embodiment of the present invention; Figure 2 is a front view structural schematic diagram of a turnout area snow melting and ice removing device according to an embodiment of the present invention; Figure 3 is Figure 2 the A-A sectional structural schematic diagram of; Figure 4 is a structural schematic diagram of the driving device and the pressurizing device with the housing removed of a turnout area snow melting and ice removing device according to an embodiment of the present invention; Figure 5 is Figure 4 the bottom view structural schematic diagram of; Figure 6 is a structural schematic diagram of the housing (the top end cover is omitted) of a turnout area snow melting and ice removing device according to an embodiment of the present invention; Figure 7 is a schematic diagram of the flow path of the gas of a turnout area snow melting and ice removing device according to an embodiment of the present invention.

[0016] In the figure: 1. Upper housing; 2. Lower housing; 3. Air outlet; 4. Air inlet hole; 5. Filter device; 6. Frequency conversion device; 7. Partition board; 8. First cavity; 9. Boosting device; 10. Driving device; 11. Switching device; 12. Second cavity; 13. Air inlet; 14. Driving housing; 15. Power component; 16. Gas channel; 17. Heat dissipation hole; 18. Volute; 19. Turbine; 20. Ventilation hole; 21. Separator. Specific implementation manner

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 The structural schematic diagram of an embodiment of the present invention is shown. This embodiment relates to a snow melting and ice removing device for turnout areas, which has a driving device and a boosting device arranged in a sealed cavity. The driving device drives the boosting device to act, and a negative pressure is generated at the air inlet of the boosting device. Utilizing the pressure difference between the sealed cavity and the outside, air enters the sealed cavity and then enters the boosting device. The boosting device compresses and boosts the air, so that the gas is ejected in a high-pressure state to blow and remove foreign matters such as snow and sand on the rails in the turnout area. It can also be used for ventilation in narrow working conditions, with a small volume and convenient installation and use.

[0019] A snow melting and ice removing device for turnout areas, as Figures 1 - 7 shown, includes a housing, a boosting device 9 and a driving device 10 connected to the boosting device 9. The housing includes a first cavity 8, and the first cavity 8 is set as a sealed cavity. Both the driving device 10 and the boosting device 9 are arranged in the first cavity 8. The driving device 10 is provided with at least one gas channel 16. The air inlet end of the gas channel 16 is communicated with the outside of the first cavity 8, and the air outlet end of the gas channel 16 is communicated with the inside of the first cavity 8. The air outlet of the boosting device 9 is communicated with the outside of the housing. The driving device 10 drives the boosting device 9 to act, and a negative pressure is generated at the air inlet of the boosting device 9. Under the action of the pressure difference between the inside and outside of the first cavity 8, the gas outside the first cavity 8 enters the first cavity 8 through the gas channel 16, is sucked by the boosting device 9 and compressed in the boosting device 9, and then is ejected from the air outlet of the boosting device 9. The setting of the gas channel 16 controls the flow direction of the gas, so that the gas outside the first cavity 8 flows in a set flow direction and enters the inside of the first cavity 8. At the same time, during the flow of the gas in the gas channel 16, heat exchange occurs with the driving device 10 to dissipate heat from the driving device 10, and the gas entering the first cavity 8 is sucked into the boosting device 9 under the influence of the negative pressure at the air inlet of the boosting device 9.

[0020] To ensure the cleanliness of the gas entering the gas passage 16, the housing further includes a second cavity 12. The first cavity 8 and the second cavity 12 are separated by a partition plate 7. The partition plate 7 is provided with a ventilation hole 20, and the ventilation hole 20 is connected to the inlet end of the gas passage 16, so that the gas in the second cavity 12 enters the gas passage 16 through the ventilation hole 20 and the inlet end of the gas passage 16.

[0021] Specifically, the turnout area snow melting and deicing device includes a housing, a pressurizing device 9 arranged inside the housing, a driving device 10 connected to the pressurizing device 9, and a partition plate 7. The partition plate 7 is connected to the housing. The internal space of the housing is divided into a first cavity 8 and a second cavity 12 by the partition plate 7. The second cavity 12 is set to communicate with the outside, so that external gas can enter the second cavity. The first cavity 8 is set as a sealed cavity to meet the working conditions of the pressurizing device 9 and control the gas flow path. Among them, the pressurizing device 9 and the driving device 10 are arranged in the first cavity 8. The driving device 10 communicates with the second cavity 12. The air outlet 3 of the pressurizing device 9 extends to the outside of the first cavity 8, so that the air outlet 3 of the pressurizing device 9 communicates with the outside of the first cavity 8. The driving device 10 drives the pressurizing device 9 to act, and a negative pressure is generated at the air inlet 13 of the pressurizing device 9. A pressure difference is generated between the first cavity 8 and the outside of the housing. External gas enters the second cavity 12 under the action of the pressure difference. The external gas enters the driving device 10 through the connection between the driving device 10 and the second cavity 12, flows through the driving device 10 and then enters the first cavity 12, and is sucked in by the air inlet 13 of the pressurizing device 9. The external gas is compressed inside the pressurizing device 9 and then sprayed out at high speed from the air outlet 3, compressing and accelerating the external gas while dissipating heat from the driving device 10. At the same time, the external gas is heated during the compression process, so that the gas is sprayed out in a high-pressure state to melt and remove the snow in the turnout area.

[0022] Specifically, as Figures 1 - 3 and Figure 6 shown, the above-mentioned housing is a housing structure with an internal cavity. The setting of the housing plays the role of a skeleton, facilitating the installation of the partition plate 7, the pressurizing device 9 and the driving device 10. The housing also protects the partition plate 7, the pressurizing device 9 and the driving device 10. The partition plate 7, the pressurizing device 9 and the driving device 10 are arranged in the housing, making the overall structure of the turnout area snow melting and deicing device compact and facilitating the installation of the entire device.

[0023] The housing can be an integral structure. The partition plate 7 is fixedly arranged inside the housing, dividing the internal space of the housing into a first cavity 8 and a second cavity 12. Alternatively, the housing is a split structure, including an upper housing 1 and a lower housing 2. Both the upper housing 1 and the lower housing 2 are box structures with an opening at one end and an accommodation space inside. A partition plate 7 is arranged between the upper housing 1 and the lower housing 2. The partition plate 7 is respectively connected to the upper housing 1 and the lower housing 2. The upper housing 1 is connected to the lower housing 2 through the partition plate 7. The partition plate 7 respectively seals the opening ends of the upper housing 1 and the lower housing 2. The upper housing 1 and the partition plate 7 form the second cavity 12, and the lower housing 2 and the partition plate 7 form the first cavity 8. Or, the housing is other structures with an internal accommodation space, which can be selected according to actual needs and no specific requirements are made here.

[0024] In some feasible embodiments, preferably, the housing is a split structure. Both the upper housing 1 and the lower housing 2 are box structures with an internal accommodation space. One side surface of the upper housing 1 and the lower housing 2 arranged opposite to each other is an open structure. The above-mentioned partition plate 7 is a plate structure. One side surface of the partition plate 7 is fixedly connected to the opening end of the upper housing 1, and the other side surface of the partition plate 7 is fixedly connected to the opening end of the lower housing 2. This fixed connection method can be fixed connection through connecting pieces such as bolts, or welding, or riveting, or other fixed connection methods, which can be selected according to actual needs and no specific requirements are made here.

[0025] The upper housing 1 and the lower housing 2 are arranged along the vertical direction. The upper housing 1 is arranged above the lower housing 2. Both the upper housing 1 and the lower housing 2 can be integrally formed housing structures, or can be box structures formed by fixedly connecting multiple side plates, which can be selected according to actual needs and no specific requirements are made here. When the lower housing 2 is an integrally formed housing structure, the connection part between the lower housing 2 and the partition plate 7 is sealed, so that the first cavity 8 formed by the lower housing 2 and the partition plate 7 is a sealed cavity structure. When the lower housing 2 is formed by fixedly connecting multiple side plates, the connection parts between the side plates are sealed, and the connection part between the partition plate 7 and the lower housing 2 is sealed, so that the first cavity 8 formed by the lower housing 2 and the partition plate 7 is a sealed cavity structure. In this structure, the first cavity 8 has only one opening communicating with the outside (the communicating part between the driving device 10 and the second cavity 12). External gas can only enter the first cavity 8 through the second cavity 12, and there is no other way to enter the first cavity 8, so as to meet the working conditions of the pressurizing device 9 and the heat dissipation conditions of the driving device 10.

[0026] The above-mentioned sealing structure can be sealed with sealant, or sealing strips, or other structures that can achieve sealing, which can be selected according to actual needs and no specific requirements are made here.

[0027] The above-mentioned driving device 10 and the supercharging device 9 are both arranged in the first cavity 8 formed by the lower housing 2 and the partition plate 7. The driving device 10 is fixedly installed in the first cavity 8. The driving device 10 can be fixedly connected to the side wall of the lower housing 2, or one end of the driving device 10 is fixedly connected to the partition plate 7. The fixed installation method of the driving device 10 in the first cavity 8 is selected according to actual needs and will not be specifically required here. In some feasible embodiments, preferably, the driving device 10 is fixedly connected to the partition plate 7. A plurality of fixing holes are provided on the partition plate 7, and corresponding mounting holes are provided on the driving device 10. Bolts sequentially pass through the fixing holes and the mounting holes to connect the driving device 10 and the partition plate 7 together, and fix the driving device 10 and the partition plate 7 together.

[0028] As Figures 1 - 5 shown, the above-mentioned supercharging device 9 is fixedly connected to the driving device 10. The supercharging device 9 operates under the driving action of the driving device 10. The housing of the driving device 10 and the housing of the supercharging device 9 are fixedly connected by bolts and other connecting parts to fix the driving device 10 and the supercharging device 9 together. The supercharging device 9 is fixedly installed on the partition plate 7 through the driving device 10.

[0029] Specifically, as Figures 4 - 5 and Figure 7 shown, the above-mentioned driving device 10 includes a driving housing 14 and a power component 15. The power component 15 is arranged inside the driving housing 14. The gap between the driving housing 14 and the outer wall of the power component 15 is configured as a gas channel 16. One end of the driving housing 14 and the corresponding end of the power component 15 are set as an open structure to construct the intake end of the gas channel 16. The driving housing 14 protects the power component 15. There is a gap between the power component 15 and the driving housing 14, that is, the outer wall of the power component 15 and the inner wall of the driving housing 14 form the gas channel 16 to guide the flow of external gas, so that the external gas entering the second cavity 12 enters the gas channel 16, and the external gas flows in the gas channel 16. The gas channel 16 guides the flow of the gas, defines the flow direction of the external gas, and the gas exchanges heat with the power component 15 during the flow process, and the power component 15 dissipates heat.

[0030] The number of the gas channels 16 can be one. In this case, the gas channel 16 can be an annular channel structure. One end of the gas channel 16 is communicated with the outside and is an open end (an air inlet end, the inlet end of external gas), and the other end of the gas channel 16 is arranged as a closed structure and is not communicated with the outside, being a closed end. Gas cannot flow out from the closed end, and the flow direction of the gas is changed, so that the gas flows out from the gas channel 16 at a set outflow position (an air outlet end) and enters the first cavity 8, thereby controlling the flow direction of the gas. Or, the number of the gas channels 16 is multiple. The multiple gas channels 16 are sequentially arranged along the circumferential direction of the power component 15. The external gas entering the second cavity 12 enters at least part of the gas channels 16 and flows in part or all of the gas channels 16. Each gas channel 16 guides the flow of the gas, so that the gas flows out from each gas channel 16 at a set outflow position and enters the first cavity 8, thereby controlling the flow direction of the gas. In this case, a plurality of partition members 21 are arranged on the inner wall of the driving housing 14. The plurality of partition members 21 are sequentially arranged along the circumferential direction of the driving housing 14. Each partition member 21 is arranged along the axial direction of the driving housing 14. The partition member 21 is a plate structure with a certain length. One side of the partition member 21 is fixedly connected to the inner wall of the driving housing 14, and the other side of the partition member 21 opposite to this side contacts the outer wall of the power component 15. The gap between adjacent partition members 21 constructs a gas channel 16, that is, any two adjacent partition members 21, the inner wall of the driving housing 14, and the outer wall of the power component 15 form a gas channel 16. One end of the gas channel 16 is an open end, and external gas can enter the gas channel 16 from the open end and flow in the gas channel 16. The other end of the gas channel 16 is arranged as a closed structure and is a closed end, not being communicated with the outside, so that the gas in the gas channel 16 flows out from a set outflow position and enters the first cavity 8. The number of the gas channels 16 is selected according to actual requirements and is not specifically required here. While each partition member 21 divides the space between the inner wall of the driving housing 14 and the outer wall of the power component 15, the partition member 21 can also strengthen the strength of the driving housing 14, reduce the deformation of the driving housing 14, and extend the service life of the driving housing 14. The partition member 21 is fixedly connected to the driving housing 14. This fixed connection method can be integrally formed, welded, or other fixed connection methods, which are selected according to actual requirements and are not specifically required here.

[0031] In order to enable the gas in the gas passage 16 to flow out of the gas passage 16 and flow out at a set position and enter the first cavity 8, so as to realize the gas flow and limit the gas flow direction, heat dissipation holes 17 are provided on the driving housing 14. The heat dissipation holes 17 are provided on the closed-end side of the driving housing 14 close to the gas passage 16. The heat dissipation holes 17 are located at the gas outlet end of the gas passage 16. The heat dissipation holes 17 are through holes, so that the gas passage 16 is communicated with the outside of the driving housing 14. External gas enters from the open end of the gas passage 16, flows along the gas passage 16, and flows out from the heat dissipation holes 17. During the flow of the external gas in the gas passage 16, heat exchange is carried out with the power component 15 to dissipate heat from the power component 15 and extend the service life of the power component 15.

[0032] The number of the heat dissipation holes 17 is multiple. The multiple heat dissipation holes 17 are arranged according to the structure of the gas passage 16. When the number of the gas passages 16 is one, the multiple heat dissipation holes 17 are all communicated with the gas passage 16. The multiple heat dissipation holes 17 are sequentially arranged along the circumferential direction of the driving housing 14, so that the external gas flows out from each heat dissipation hole 17. When the number of the gas passages 16 is multiple, at least one heat dissipation hole 17 is provided on one side of each gas passage 16 close to the closed end, so that the external gas in each gas passage 16 flows out from the corresponding heat dissipation hole 17.

[0033] In order to enable the external gas entering the second cavity 12 to enter the gas passage 16, ventilation holes 20 are provided on the partition plate 7. The open end of the gas passage 16 corresponds to the ventilation holes 20. The ventilation holes 20 are communicated with the gas passage 16, so that the external gas entering the second cavity 12 enters the gas passage 16 through the ventilation holes 20. According to the installation method of the driving device 10, one end of the driving housing 14 provided with the open end of the gas passage 16 is fixedly connected to the partition plate 7. The open end of the gas passage 16 faces the partition plate 7. Therefore, the ventilation holes 20 are arranged between multiple fixing holes. The multiple fixing holes are sequentially arranged along the circumferential direction of the ventilation holes 20. The fixing holes realize the fixed connection between the driving housing 14 and the partition plate 7. The ventilation holes 20 correspond to the gas passage 16 to realize the communication between the ventilation holes 20 and the gas passage 16. The ventilation holes 20 are through holes, so that the gas passage 16 is communicated with the second cavity 12, and the external gas entering the second cavity 12 can enter the first cavity 8 through the ventilation holes 20 and the gas passage 16.

[0034] The number of the vent holes 20 is at least one and can be selected according to the structure of the gas channels 16. When the number of the gas channels 16 is one, the number of the vent holes 20 can be one at this time. In this structure, the area of the vent hole 20 covers the open end of the gas channel 16, so that the vent hole 20 is communicated with the gas channel 16. Of course, in this structure, the number of the vent holes 20 can also be multiple, and each vent hole 20 corresponds to and is communicated with the gas channel 16. When the number of the gas channels 16 is multiple, the number of the vent holes 20 can be multiple at this time. In this structure, the number of the vent holes 20 is the same as the number of the gas channels 16, and each vent hole 20 corresponds to and is communicated with one gas channel 16, that is, multiple vent holes 20 correspond to multiple gas channels 16 one by one. Of course, in this structure, the number of the vent holes 20 can also be one, and the area of the vent hole 20 covers the open ends of the respective gas channels 16, so that the vent hole 20 is communicated with each gas channel 16.

[0035] The closed end of the gas channel 16 can be formed in the following ways: the driving housing 14 is connected to the power member 15 to block this end of the gas channel 16, so that this end of the gas channel 16 is a closed structure to form a closed end. Or, the end of the driving housing 14 on the side of the closed end of the gas channel 16 contacts the housing of the pressurizing device 9, and the contact part is sealed. The housing of the pressurizing device 9 blocks this end of the driving housing 14, so that this end of the gas channel 16 is a closed structure to form a closed end.

[0036] In some feasible embodiments, preferably, the driving device 10 is a motor, the driving housing 14 is the housing of the motor, and the power member 15 is a stator and a rotor. The structure of the motor housing and the gap between the motor housing and the stator are structurally improved, and at least one gas channel 16 is constructed between the outer wall of the stator and the inner wall of the motor housing, so that the external gas entering the second cavity 12 enters the gas channel 16 from the vent hole 20, flows in the gas channel 16, exchanges heat with the stator and rotor of the motor for heat dissipation, and then flows out from the heat dissipation hole 17 and enters the first cavity 8, realizing the heat dissipation of the motor and controlling the flow direction of the external gas at the same time, so that the gas enters the first cavity 8 along a set route to provide gas for the pressurizing device 9.

[0037] The above-mentioned supercharging device 9 has an air inlet 13 and an air outlet 3. Air enters from the air inlet 13 of the supercharging device 9, is compressed and accelerated inside the supercharging device 9, and is ejected at high speed from the air outlet 3 of the supercharging device 9. The air inlet 13 of the supercharging device 9 is located in the first cavity 8, and the air outlet 3 of the supercharging device 9 extends to the outside of the first cavity 8, and the air outlet 3 of the supercharging device 9 is in communication with the outside. Specifically, the supercharging device 9 is a turbo 19 supercharging structure, including a turbo 19 and a volute 18. The turbo 19 is rotatably installed in the volute 18. The volute 18 has an air inlet 13 and an air outlet 3. The turbo 19 rotates and cooperates with the volute 18 to compress and accelerate the air entering the volute 18. At the same time, the air located in the volute 18 rubs against the turbo 19, which will cause the temperature of the air to rise. The cold air entering the volute 18 mixes with the hot air in the volute 18, making the ejected air in a high-temperature state. Since different types of drive devices 10 have different rotational speeds, the turbo 19 will have different rotational speeds accordingly. As the rotational speed of the turbo 19 increases, the temperature of the ejected air will also increase accordingly. After detection, when the rotational speed of the turbo 19 reaches 18,000 revolutions, the temperature of the ejected air reaches 25°C, which can melt the snow in the turnout area.

[0038] The volute 18 is fixedly connected to the drive housing 14 of the drive device 10, connecting the drive device 10 and the supercharging device 9 together. The supercharging device 9 is located below the drive device 10. The volute 18 is fixedly connected to one end of the drive housing 14 close to the closed end of the gas passage 16. The volute 18 seals the closed-end side of the gas passage 16 to form a closed structure. The connection between the drive housing 14 and the volute 18 is sealed so that the gas in the gas passage 16 will not flow out from the connection between the drive housing 14 and the volute 18, thus ensuring that the gas flows out from the heat dissipation holes 17 of the gas passage 16. This sealing method can be sealing with sealant, or setting sealing strips, or other sealing methods, which can be selected according to actual needs and will not be specifically required here.

[0039] In order to enable the drive device 10 to drive the supercharging device 9 to act and compress the external gas, the drive device 10 is connected to the supercharging device 9 and is coaxially arranged. That is, the drive device 10 and the turbo 19 share the same shaft. The turbo 19 is installed on the output shaft of the power member 15. The output shaft of the drive device 10 rotates, synchronously driving the turbo 19 to rotate, compressing the air entering the volute 18, and making the air ejected at high speed from the air outlet 3.

[0040] A through hole is provided on the side wall of the lower housing 2. The air outlet 3 of the volute 18 passes through this through hole and extends to the outside of the lower housing 2. At the same time, the connection between the air outlet 3 of the volute 18 and the lower housing 2 is sealed to ensure the tightness of the first cavity 8.

[0041] The above-mentioned second cavity 12 is provided with at least one air inlet hole 4. The second cavity 12 communicates with the outside through the air inlet hole 4. The air inlet hole 4 has a through-hole structure. When the number of air inlet holes 4 is multiple, the multiple air inlet holes 4 are arranged in sequence along the side wall of the upper housing 1. External air enters the second cavity 12 through the air inlet hole 4. In order to ensure the cleanliness of the gas entering the second cavity 12 and reduce the damage to the driving device 10 and the supercharging device 9, a filtering device 5 is provided at the air inlet hole 4 to filter the gas entering the second cavity 12. Preferably, the filtering device 5 is an air filter net or an air filter core.

[0042] In a further optimized solution, the turnout area snow melting and deicing device further includes a frequency conversion device 6 and a switching device 11. The frequency conversion device 6 is connected to the switching device 11, and the switching device 11 is connected to an external power supply to control the on-off of the circuit. The frequency conversion device 6 is connected to the driving device 10 to control the rotation speed and torque of the driving device 10. The frequency conversion device 6 and the switching device 11 are both arranged in the second cavity 12. The switching device 11 is in a normally open state. When the switching device 11 receives a closing signal and closes, the power supply supplies power to the driving device 10, and the driving device 10 operates. The frequency conversion device 6 controls the rotation speed and torque of the driving device 10.

[0043] In some feasible embodiments, preferably, the frequency conversion device 6 is an inverter, which is a commercially available product and can be selected according to actual needs. No specific requirements are made here.

[0044] In some feasible embodiments, preferably, the switching device 11 is a contactor, which is a commercially available product and can be selected according to actual needs. No specific requirements are made here.

[0045] In a further optimized solution, the turnout area snow melting and deicing device further includes a rain and snow sensor (not shown in the figure) and a relay (not shown in the figure). The rain and snow sensor is connected to the relay, and the relay is connected to the switching device 11. The relay controls the on-off of the switching device according to the detection signal of the rain and snow sensor. The rain and snow sensor detects whether there is snow accumulation in the turnout area. When the rain and snow sensor detects snow accumulation in the turnout area, the relay operates, the relay closes, the switching device 11 receives the relay closing signal, and the switching device 11 closes. The power supply supplies power to the driving device 10, the driving device 10 operates, the frequency conversion device 6 controls the rotation speed and rotation speed of the driving device 10, the driving device 10 drives the supercharging device 9 to operate, the turbine 19 rotates, a negative pressure is generated at the air inlet 13 of the volute 18, and under the action of the pressure difference inside and outside the housing, external gas enters the second cavity 12 through the air inlet hole 4 of the second cavity 12, enters the gas channel 16 through the ventilation hole 20, flows in the gas channel 16, flows out from the heat dissipation hole 17, enters the first cavity 8, is sucked into the volute 18 at the air inlet 13 of the volute 18, is compressed in the volute 18, and is sprayed out at high speed from the air outlet 3 to remove the snow accumulation in the turnout area.

[0046] The above-mentioned rain and snow sensor is installed outside the housing so that the rain and snow sensor can detect the snow accumulation in the turnout area. This rain and snow sensor is a commercially available product and can be selected according to actual needs. No specific requirements are made here.

[0047] The above-mentioned relay is installed outside the housing and is a commercially available product. It can be selected according to actual needs. No specific requirements are made here.

[0048] When the turnout area snow melting and de-icing device is working, the rain and snow sensor detects the snow accumulation in the turnout area. When snow accumulation is detected in the turnout area, the relay receives the detection signal and closes. After the switch device 11 receives the signal that the relay is closed, the switch device 11 closes, and the power supply supplies power to the driving device 10. The driving device 10 operates. The frequency conversion device 6 controls the rotation speed and torque of the driving device 10. The driving device 10 drives the supercharging device 9 to rotate. Since the turbine 19 of the supercharging device 9 is installed on the output shaft of the driving device 10, the driving device 10 drives the supercharging device 9 to rotate at the same speed, driving the turbine 19 to rotate. A negative pressure is generated at the air inlet 13 of the supercharging device 9. Under the action of the pressure difference inside and outside the housing, a large amount of fresh air outside the housing enters the second cavity 12 after being filtered by the filtering device 5 at the air inlet hole 4, and then enters the gas channel 16 through the ventilation hole 20, flows in the gas channel 16, exchanges heat with the power component 15 of the driving device 10, dissipates heat from the driving device 10, and the gas flows out from the heat dissipation hole 17 of the gas channel 16 and enters the first cavity 8. Under the negative pressure action at the air inlet 13 of the supercharging device 9, the gas is sucked into the volute 18 from the air inlet 13 of the supercharging device 9, is compressed in the supercharging device 9, and the compressed high-pressure gas is ejected from the air outlet 3 of the supercharging device 9 at a high speed to remove foreign matters such as snow accumulation and sand accumulation on the rails in the turnout area.

[0049] Of course, the ejected high-pressure gas can also be connected to a pneumatic device or a pneumatic fan to improve the performance of the pneumatic device or the pneumatic fan, or directly applied to fields such as ventilation in narrow working conditions.

[0050] Due to the adoption of the above technical solution, the snow melting and ice removing device in the turnout area has a simple structure and is easy to install. It has a supercharging device and a driving device. The driving device drives the supercharging device to rotate. The turbine of the supercharging device is installed on the output shaft of the driving device. The driving device and the supercharging device are coaxial, so that the driving device and the supercharging device rotate synchronously. The supercharging device is a turbocharging structure that compresses air, and the compressed high-pressure air is ejected from the air outlet of the supercharging device at high speed; it has a partition board, and the internal space of the housing is divided into a first cavity and a second cavity by the partition board. The first cavity is set as a sealed cavity structure, and the supercharging device and the driving device are arranged in the first cavity. The second cavity is set to communicate with the outside. A negative pressure is generated at the air inlet of the supercharging device, so that the outside air is sucked into the first cavity through the second cavity and the driving device under the action of the pressure difference inside and outside the housing, and then is sucked into the supercharging device for compression. When the air flows through the driving device, it exchanges heat with the driving device, and the driving device dissipates heat. The driving device (motor) drives the supercharging device (turbocharging structure) to provide the required supercharging effect stably, avoiding the "turbo lag" phenomenon of traditional turbochargers. Compared with traditional fans and screw air compressors, it is more energy-saving, has a small volume, does not require an air tank, is convenient for installation and use, and is convenient for maintenance; the first cavity is a sealed box structure. The driving device is provided with a gas channel, and the air inlet end of the gas channel is an open structure, and the other end of the gas channel is a closed structure and does not communicate with the outside. Heat dissipation holes are provided on the side wall of the gas channel, and ventilation holes are provided at the corresponding positions on the partition board. The through holes correspond to and communicate with the air inlet end of the gas channel, so that the gas channel communicates with the second cavity, so that the gas entering the second cavity enters the gas channel through the ventilation holes, flows in the gas channel, and flows out from the heat dissipation holes, enters the first cavity, and under the negative pressure of the air inlet of the supercharging device, is sucked into the interior of the supercharging device, controlling the flow route of the gas, so that the outside gas enters the supercharging device along the flow route, so that the supercharging device compresses and accelerates the gas, and the gas is ejected at a high speed to remove the snow in the turnout area.

[0051] The above has described the embodiments of the present invention in detail, but the above content is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A turnout area snow melting and deicing device, characterized in that: It includes a housing, a supercharging device, and a driving device connected to the supercharging device. The housing includes a first cavity, and the first cavity is configured as a sealed cavity. Both the driving device and the supercharging device are disposed within the first cavity. The driving device is provided with at least one gas passage. The intake end of the gas passage communicates with the outside of the first cavity, and the outlet end of the gas passage communicates with the inside of the first cavity. The air outlet of the supercharging device communicates with the outside of the housing. The driving device drives the supercharging device to operate, generating a negative pressure at the air inlet of the supercharging device. Under the action of the pressure difference between the inside and outside of the first cavity, the gas outside the first cavity enters the first cavity through the gas passage, is sucked by the supercharging device and compressed within the supercharging device, and then ejected from the air outlet of the supercharging device.

2. The snow melting and deicing device for turnout area according to claim 1, wherein: The driving device includes a driving housing and a power component disposed within the driving housing. The gap between the driving housing and the outer wall of the power component is configured as the gas passage. One end of the driving housing and the corresponding end of the power component are provided as an open structure, constructing the intake end of the gas passage.

3. The snow melting and deicing device for turnout area according to claim 2, characterized in that: The number of the gas passages is one, and the gas passage is of an annular passage structure; or, the number of the gas passages is multiple, and the multiple gas passages are sequentially arranged along the circumferential direction of the power component. A plurality of partition members are provided on the inner wall of the driving housing, and the plurality of partition members are sequentially arranged along the circumferential direction of the driving housing. The partition members are in contact with the outer wall of the power component, and the gap between adjacent partition members constructs one gas passage.

4. The snow melting and deicing device for turnout area according to claim 3, characterized in that: The other end of the driving housing and the corresponding end of the power component are provided as a closed structure. Heat dissipation holes are provided on the side wall of the driving housing corresponding to the gas passage for gas outflow.

5. The snow melting and ice removing device for turnout area according to any one of claims 2-4, characterized in that: The supercharging device is a turbocharging structure, including a volute and a turbine disposed within the volute. The turbine is disposed on the output shaft of the power component. The volute is connected to the driving housing, and a sealing structure is provided at the connection between the volute and the driving housing to seal this connection.

6. The snow melting and deicing device for turnout area according to claim 5, characterized in that: The housing further includes a second cavity. The first cavity and the second cavity are separated by a partition plate. An air vent is provided on the partition plate, and the air vent is connected to the intake end of the gas passage, so that the gas in the second cavity enters the gas passage through the air vent and the intake end of the gas passage.

7. The snow melting and deicing device for turnout area according to claim 6, characterized in that: The second cavity is provided with at least one intake hole. The second cavity communicates with the outside of the housing through the intake hole, and a filtering device is provided at the intake hole to filter the gas entering the second cavity.

8. The snow melting and ice removing device for turnout area according to claim 6 or 7, characterized in that: It further includes a frequency conversion device and a switch device connected to each other. The frequency conversion device and the switch device are disposed within the second cavity. The switch device is connected to a power source to control the on / off of the circuit. The frequency conversion device is connected to the driving device to control the rotational speed and torque of the driving device.

9. The snow melting and ice removing device for turnout area according to claim 8, characterized in that: It further includes a rain and snow sensor and a relay. The rain and snow sensor is disposed outside the housing. The rain and snow sensor is connected to the relay, and the relay is connected to the switching device. The relay controls the on / off of the switching device according to the detection signal of the rain and snow sensor.

10. The turnout area snow melting and ice removing device according to claim 9, characterized in that: The switching device is a contactor, and the driving device is a motor.

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