Vehicle body ventilation device and mixing car

Abstract

The present application relates to the field of locomotive technology, and discloses a vehicle body ventilation device and a mixed iron vehicle. The vehicle body ventilation device is sequentially provided with a louver filter, a separation assembly and a terminal filter assembly. The foreign matter, moisture, particulate matter and light impurities in the air are separated and filtered in multiple stages. In view of the problem that the air in the working environment of the mixed iron vehicle contains a large amount of particulate impurities and moisture, the moisture and particulate impurities discharged from the separator are collected by the collecting shell after separation by the separator. The cleanliness of the air supplied by the vehicle body ventilation device is ensured through multi-stage separation and filtration, the use requirements of the related facilities in the subsequent machinery are ensured, the maintenance period is effectively prolonged, and the maintenance frequency is reduced.

Description

Technical Field

[0001] This invention relates to the field of locomotive technology, and more particularly to a car body ventilation device and a hybrid locomotive. Background Technology

[0002] The working environment of mixed-rail locomotives is much harsher than that of conventional locomotives. Compared to the working environment of conventional locomotives, the working environment of mixed-rail locomotives includes a large amount of metal dust, iron filings, and water vapor. When ventilating, these substances need to be filtered out before ventilation to the machine room. Although conventional ventilation devices can also achieve filtration, their filters or filter elements are only suitable for filtering air with relatively high cleanliness. If they are used directly for ventilation of mixed-rail locomotives, the filter elements will become clogged in a short time due to the harsh working environment, requiring frequent maintenance. Summary of the Invention

[0003] The purpose of this invention is to provide a vehicle body ventilation device and a mixed-rail vehicle to meet the ventilation requirements of mixed-rail vehicles in harsh working environments and reduce maintenance frequency.

[0004] This invention provides a vehicle body ventilation device, comprising: A blower, comprising a housing and a blower, wherein the blower is installed inside the housing; A louvered filter, installed on the housing and located upstream of the fan, is used to filter foreign objects in the air entering the fan; A separation assembly includes a mounting base and a separator. The mounting base is installed inside the housing, and the separator is mounted on the mounting base. The air inlet of the separator is located downstream of the fan. The separator is capable of separating and discharging moisture and particulate impurities from the air. A collection housing is installed on the housing and located downstream of the separation assembly. The inlet end of the collection housing is connected to the air outlet of the separator. The collection housing is capable of collecting particulate impurities of water discharged from the separator. An end-of-line filter assembly, installed at the outlet end of the collection housing, is used to filter light impurities in the air flowing out of the collection housing.

[0005] As a preferred technical solution for the vehicle body ventilation device, the mounting base is provided with multiple mounting holes, which penetrate the mounting base along the axial direction of the mounting base. The separator is configured as multiple, and the multiple separators are installed one-to-one in the multiple mounting holes.

[0006] As a preferred technical solution for the vehicle body ventilation device, the separator includes a cylinder, the cylinder is provided with an air inlet and an air outlet, the air inlet is connected to the outlet of the fan, and a guide plate is fixedly provided at the air inlet of the cylinder, the guide plate extends spirally along the axial direction of the cylinder, and the length of the guide plate is less than the length of the cylinder.

[0007] As a preferred technical solution for the vehicle body ventilation device, multiple air guide plates are provided, and the multiple air guide plates are arranged at intervals along the circumference of the cylinder.

[0008] As a preferred technical solution for the vehicle body ventilation device, the separator further includes an air outlet connector, which is fixedly connected to the air outlet of the cylinder. The air outlet connector divides the air outlet of the cylinder into a sewage outlet and a clean air outlet. The sewage outlet is arranged around the outer periphery of the clean air outlet. The air outlet connector has a small end opening and a large end opening that are connected to each other. The small end opening is aligned with and connected to the clean air outlet.

[0009] As a preferred technical solution for the vehicle body ventilation device, along the axial direction of the separator, the length of the air outlet joint is greater than the pitch of the air guide plate.

[0010] As a preferred technical solution for the vehicle body ventilation device, the collection housing has a collection cavity, and a partition ring is installed in the collection cavity. The partition ring divides the collection cavity into a ventilation cavity and a dirt collection cavity. The dirt collection cavity is arranged around the outer periphery of the ventilation cavity. The partition ring has a dirt collection hole. The ventilation cavity and the dirt collection cavity are connected through the dirt collection hole. The large end opening and the sewage outlet are both connected to the ventilation cavity. The end filter assembly is used to filter the air flowing out of the ventilation cavity.

[0011] As a preferred technical solution for the vehicle body ventilation device, a rotating brush is provided inside the ventilation cavity. The rotating brush includes a brush head and an input shaft. The brush head is fixedly connected to one end of the input shaft, and the other end of the input shaft passes through the mounting base and is coaxially fixedly connected to the output shaft of the fan. The end of the brush head away from the output shaft contacts the partition ring.

[0012] As a preferred technical solution for the vehicle body ventilation device, the terminal filter assembly includes a non-woven fabric and two take-up shafts, the two take-up shafts are spaced apart, the two ends of the non-woven fabric are respectively wound around the two take-up shafts, and the two take-up shafts are both installed at the end of the collection housing away from the blower.

[0013] The present invention provides a hybrid steel car, including a car body ventilation device according to any of the above-described embodiments.

[0014] The beneficial effects of this invention are as follows: This invention provides a vehicle body ventilation device, which sequentially includes a louvered filter, a separation component, and a terminal filter component. It separates and filters foreign objects, moisture, particulate matter, and light impurities in the air through multiple stages. Addressing the issue of high levels of particulate matter and moisture in the working environment of mixed-rail vehicles, the device uses a separator to separate the air, and then collects the moisture and particulate matter discharged from the separator through a collection housing. This multi-stage separation and filtration ensures the cleanliness of the air supplied by the vehicle body ventilation device, guaranteeing the operational needs of related facilities in the mechanical room, while effectively extending the maintenance cycle and reducing maintenance frequency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the vehicle body ventilation device in an embodiment of the present invention; Figure 2 This is an exploded view of the vehicle ventilation device in an embodiment of the present invention; Figure 3 This is a cross-sectional view of the housing in an embodiment of the present invention; Figure 4 This is a schematic diagram of the separator from a first perspective in an embodiment of the present invention; Figure 5 This is a schematic diagram of the separator in an embodiment of the present invention from a second perspective; Figure 6 This is a schematic diagram of the air guide plate in an embodiment of the present invention; Figure 7 This is a schematic diagram of the air outlet connector in an embodiment of the present invention; Figure 8 This is a cross-sectional view of the separator in an embodiment of the present invention.

[0016] In the picture: 1. Blower; 11. Housing; 12. Protective net; 2. Bracket; 3. Louvered filter; 4. Separation assembly; 41. Mounting base; 411. Through hole; 42. Separator; 421. Cylinder; 4211. Air inlet; 4212. Air outlet; 4212a. Sewage outlet; 4212b. Clean air outlet; 422. Air guide plate; 4221. Fixed shaft; 423. Air outlet connector; 4231. Small end opening; 4232. Large end opening; 4233. Baffle ring; 5. Collection housing; 51. Collection chamber; 511. Ventilation chamber; 512. Sludge collection chamber; 6. Terminal filter assembly; 61. Winding shaft; 62. Non-woven fabric; 7. Separating ring; 71. Sludge collection hole; 8. Rotating brush; 81. Brush head; 82. Input shaft. Detailed Implementation

[0017] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] like Figures 1-8As shown, this embodiment of the invention provides a vehicle body ventilation device. This device can be used in mixed-rail locomotives to supply air to the machine room, or in other embodiments, it can also be used to supply air to the machine room of other types of locomotives. Specifically, the vehicle body ventilation device includes a blower 1, a louvered filter 3, a separation component 4, a collection housing 5, and a terminal filter component 6. The blower 1 includes a housing 11 and a fan (not shown in the figure). The fan is installed inside the housing 11 and supplies air along the axial direction of the housing 11. The housing 11 is horizontally positioned, meaning the blower 1 supplies air horizontally. A bracket 2 is fixedly connected to the outside of the housing 11, allowing the blower 1 to be installed. A protective net 12 is installed on the suction side of the fan on the housing 11. The protective net 12 is used to prevent large foreign objects from hitting the fan blades and causing damage. A louvered filter 3 is installed on the housing 11 and located upstream of the fan and the protective net 12. The louvered filter 3 filters foreign objects, such as flexible plastic or fiber floaters, from the air entering the fan. Furthermore, the louvered filter 3 is waterproof, preventing water damage to the blower 1. The specific structure of the louvered filter 3 is prior art and will not be described in detail here. The separation assembly 4 includes a mounting base 41 and a separator 42. The mounting base 41 is installed inside the housing 11 and coaxially arranged with the housing 11. The separator 42 is installed on the mounting base 41, and its axis is parallel to the axis of the housing 11. The air inlet 4211 of the separator 42 is located downstream of the fan. The separator 42 can separate and discharge moisture and particulate impurities from the air. A collection housing 5 is installed on the housing 11 and located downstream of the separation assembly 4. The collection housing 5 and the housing 11 can be fixedly connected by a flange and bolts, or by welding. The collecting housing 5 has openings at both ends, forming an inlet and an outlet. The inlet of the collecting housing 5 is connected to the air outlet 4212 of the separator 42, and the collecting housing 5 can collect moisture and particulate impurities discharged from the air outlet 4212 of the separator 42. The terminal filter assembly 6 is installed at the outlet of the collecting housing 5 to filter light impurities in the air flowing out of the collecting housing 5. During the operation of the vehicle ventilation system, along the airflow direction, the louvered filter 3 intercepts floating objects and other foreign objects in the air, the protective net 12 intercepts large particles to prevent them from hitting the fan blades, and the separator assembly 4 separates moisture and particulate impurities in the air and discharges them to the collecting housing 5. The collecting housing 5 collects moisture and particulate impurities, while relatively clean air flows out of the collecting housing 5. Finally, the terminal filter assembly 6 filters out light impurities in the air, such as fine fibers, lint, or flakes, and finally supplies clean air to the machine room.In this embodiment, the vehicle ventilation device sequentially sets up a louvered filter 3, a separation component 4, and a terminal filter component 6 to separate and filter foreign objects, moisture, particulate matter, and light impurities in the air in multiple stages. In addition, in response to the problem that the air in the working environment of the mixed-iron car contains a lot of particulate impurities and moisture, the separator 42 is used to separate the moisture and particulate impurities, and the moisture and particulate impurities are collected by the collection housing 5. Thus, through multi-stage separation and filtration, the cleanliness of the air supplied by the vehicle ventilation device is ensured, the use requirements of related facilities in the subsequent mechanical room are guaranteed, and the maintenance cycle is effectively extended and the maintenance frequency is reduced.

[0022] Furthermore, such as Figure 2 As shown, the mounting base 41 has multiple mounting holes that penetrate the mounting base 41 along its axial direction. Multiple separators 42 are provided, each installed in one of the mounting holes. The axes of the mounting holes are parallel to the axis of the mounting base 41, and the multiple mounting holes are evenly distributed on the end face of the mounting base 41. By providing multiple mounting holes and multiple separators 42, the flow area is increased, ensuring ventilation efficiency.

[0023] Specifically, such as Figures 4-8 As shown, the separator 42 includes a cylindrical body 421, which has an air inlet 4211 and an air outlet 4212. The air inlet 4211 is aligned with and connected to the outlet of the fan. A guide plate 422 is fixedly installed at the air inlet 4211 of the cylindrical body 421. The guide plate 422 is welded to the inner wall of the cylindrical body 421. The guide plate 422 extends spirally along the axial direction of the cylindrical body 421 and along the circumference of the cylindrical body 421. The length of the guide plate 422 is less than the length of the cylindrical body 421. After air enters the cylinder 421 through the air inlet 4211, it spirals forward under the guidance of the air guide plate 422. Since the length of the air guide plate 422 is less than the length of the cylinder 421, in the section of the cylinder 421 without the air guide plate 422, moisture and particulate impurities are closer to the inner wall of the cylinder 421 under the action of centrifugal force, thereby achieving the separation of water vapor and particulate matter. Relatively clean air is blown out from the central area of ​​the air outlet 4212, while air containing moisture and particulate impurities is blown out from the edge of the air outlet 4212. After being discharged from the air outlet 4212, the moisture and particulate impurities gradually accumulate to the bottom of the collection shell 5 under the action of gravity. The air guide plate 422 converts the kinetic energy of the air moving axially at the air inlet 4211 into energy to overcome the friction between the air and the inner wall of the cylinder 421 and the air guide plate 422, the kinetic energy moving along the cylinder 421, and the rotational kinetic energy. As a result, the kinetic energy moving along the cylinder 421 is reduced, and the air blown out from the air outlet 4212 of the separator moves at a lower speed along the axial direction of the cylinder 421. The relatively clean air blown out from the central area of ​​the air outlet 4212 cannot re-entrain the separated moisture and particulate impurities, thus avoiding affecting the separation effect of the separator 42.

[0024] Specifically, such as Figures 4-6 As shown, multiple air guide plates 422 are configured, spaced circumferentially along the cylinder 421. The sides of the multiple air guide plates 422 furthest from the cylinder 421 are connected by a fixed shaft 4221, thus forming a single unit and strengthening its structural strength. Using multiple air guide plates 422 further enhances the rotational kinetic energy of the air inside the cylinder 421, while also reducing the axial length of the air guide plates 422 along the cylinder 421. This allows for more space within the cylinder 421 to separate moisture and particulate impurities, resulting in better separation. The spiral of the air guide plate 422 is an Archimedean spiral, with its polar diameter, polar angle, and initial radius determined according to actual working conditions. Its spiral step length is determined based on the moisture content of the air and the weight and particle size of the particulate impurities. For example, for dust and water vapor in conventional air, a smaller spiral step length is usually required to ensure higher rotational kinetic energy for separating dust and water vapor. However, a smaller spiral step length can lead to significant airflow obstruction, affecting air delivery efficiency. In this embodiment, the air in the working environment of the iron mixing vehicle mainly contains iron powder or iron filings, which are smaller in size and heavier than conventional dust and water vapor. Therefore, a larger spiral step length can be used to obtain a good separation effect, while the airflow obstruction can be controlled within an acceptable range, reducing the impact on the air supply efficiency.

[0025] Optionally, the ratio of the length of the cylinder 421 to the length of the guide plate 422 along the axial direction of the cylinder 421 is 2-5. In this embodiment, the ratio of the length of the cylinder 421 to the length of the guide plate 422 is preferably 3. By guiding the air simultaneously through multiple guide plates 422, the air can quickly gain higher rotational kinetic energy, providing more space within the cylinder 421 to separate moisture and particulate impurities, while also achieving a relatively ideal flow velocity along the axial direction of the cylinder 421, thus balancing separation effect and air delivery efficiency.

[0026] Furthermore, such as Figures 4-8As shown, the separator 42 also includes an air outlet connector 423, which is fixedly connected to the air outlet 4212 of the cylinder 421. The air outlet connector 423 is coaxially arranged with the cylinder 421, and the diameter of the end of the air outlet connector 423 that is fixedly connected to the cylinder 421 is smaller than the inner diameter of the cylinder 421. Thus, the air outlet connector 423 divides the air outlet 4212 of the cylinder 421 into a sewage outlet 4212a and a clean air outlet 4212b, with the sewage outlet 4212a surrounding the outer periphery of the clean air outlet 4212b. Multiple spokes are fixedly arranged at the end of the air outlet connector 423 near the cylinder 421, and the air outlet connector 423 is fixedly connected to the cylinder 421 through the spokes, such as by welding, bonding, or interference fit. The air outlet connector 423 has a flared structure, with its small end entering the interior of the cylinder 421 along the axial direction and being fixedly connected to the cylinder 421, thus ensuring a more secure connection between the air outlet connector 423 and the cylinder 421. The air outlet connector 423 has a small end opening 4231 and a large end opening 4232 that are connected to each other at its small and large ends, respectively. The small end opening 4231 is aligned with and connected to the clean air outlet 4212b. The air outlet connector 423 is equipped with a retaining ring 4233, located at the large end of the air outlet connector 423, protruding from the outer surface of the air outlet connector 423. The outer diameter of the retaining ring 4233 is greater than or equal to the outer diameter of the cylinder 421. The relatively clean air, separated by separator 42, enters the small end opening 4231 of the air outlet 423 from the clean air outlet 4212b, and then enters the collection housing 5 from the large end opening 4232 of the air outlet 423. Along the axial direction of the cylinder 421, slower-moving moisture and particulate impurities fall to the bottom of the collection housing 5 after entering through the drain outlet 4212a. Faster-moving moisture and particulate impurities collide with the outer surface of the air outlet 423 and fall to the bottom of the collection housing 5, while even faster-moving moisture and particulate impurities collide with the baffle ring 4233 and fall to the bottom of the collection housing 5. By setting up a ventilation connector, clean air is physically isolated from moisture and particulate impurities. The position where moisture and particulate impurities enter the collection housing 5 is axially separated from the position where clean air enters the collection housing 5. This distance is equal to the axial length of the air outlet 423, reducing the probability that moisture and particulate impurities will be re-entrained by clean air within the collection housing 5. Furthermore, the funnel-shaped structure of the ventilation system further reduces the flow velocity of clean air when it enters the collection housing 5, thereby further reducing the probability that moisture and particulate impurities will be re-entrained by the clean air inside the collection housing 5.

[0027] Optionally, along the axial direction of the separator 42, the length of the air outlet joint 423 is greater than the pitch of the air guide plate 422. After the spirally advancing clean air enters the air outlet joint 423, it continues to spiral forward inside the air outlet joint 423. The length of the air outlet joint 423 is greater than the length of the air guide plate 422, and along the air flow direction, the inner diameter of the air outlet joint 423 gradually increases. The rotational kinetic energy of the air is fully consumed inside the air outlet joint 423, so that the clean air entering the collection housing 5 flows stably along the extension direction of the axis of the separator 42, reducing the probability of turbulence causing an increase in flow resistance.

[0028] Specifically, such as Figure 3 As shown, the collection housing 5 has a collection cavity 51, within which a partition ring 7 is installed. The partition ring 7 divides the collection cavity 51 into a ventilation cavity 511 and a dirt collection cavity 512. The dirt collection cavity 512 is arranged around the outer periphery of the ventilation cavity 511. The partition ring 7 has dirt collection holes 71, through which the ventilation cavity 511 and the dirt collection cavity 512 are connected. The dirt collection holes 71 are strip-shaped holes extending axially along the partition ring 7. Multiple dirt collection holes 71 are provided, and the multiple dirt collection holes 71 are evenly distributed circumferentially along the partition ring 7. The large end opening 4232 and the drain outlet are both connected to the ventilation cavity 511. The end filter assembly 6 is used to filter the air flowing out of the ventilation cavity 511. The moisture and particulate impurities separated by separator 42 enter the ventilation chamber 511 and are deposited at the bottom of the ventilation chamber 511 under gravity. They then fall into the collection chamber 512 through the collection holes 71 on the partition ring 7. The collection chamber 512 is located around the outer periphery of the ventilation chamber 511, and the moisture and particulate impurities inside it are not in the flow path of clean air, thus further reducing the probability of moisture and particulate impurities being re-entrained. A cleaning cover (not shown in the figure) can also be detachably connected to the bottom of the collection housing 5. The cleaning cover corresponds to the collection chamber 512. Removing the cleaning cover from the bottom of the collection housing 5 facilitates the cleaning of accumulated water and particulate impurities in the collection chamber 512.

[0029] Optionally, such as Figure 2 As shown, a rotating brush 8 is installed inside the ventilation cavity 511. The rotating brush 8 includes a brush head 81 and an input shaft 82. The brush head 81 is fixedly connected to one end of the input shaft 82. The input shaft 82 is coaxial with the mounting base 41. The mounting base 41 has a through hole 411 at its center. The other end of the input shaft 82 passes through the through hole 411 of the mounting base 41 and is fixedly connected to the output shaft of the fan, so that the rotating brush 8 can be driven to rotate synchronously by the fan. The end of the brush head 81 away from the output shaft contacts the separator ring 7. Under the sweeping of the brush head 81, moisture and particulate impurities on the separator ring 7 fall into the collection cavity 512 through the dirt collection hole 71. The brush head 81 can be circular or fan-shaped, with multiple sets of bristles. Sufficient gaps are left between the multiple sets of bristles to allow air to pass through. Its specific structure is prior art in the art and will not be described in detail here.

[0030] Furthermore, the end-filter assembly 6 includes a non-woven fabric 62 and two take-up shafts 61, spaced apart. Both ends of the non-woven fabric 62 are wound around the two take-up shafts 61, and both take-up shafts 61 are installed at the end of the collection housing 5 furthest from the blower 1. The non-woven fabric 62 completely covers the outlet opening of the collection housing 5, filtering light impurities in the air and ensuring that the air entering the machine room meets requirements. The first take-up shaft 61 is used to wind up unused non-woven fabric 62, and the second take-up shaft 61 is driven by a motor and used to wind up used non-woven fabric 62. When a new non-woven fabric 62 needs to be replaced, the motor drives the second take-up shaft 61 to rotate, winding up the used non-woven fabric 62, while simultaneously rotating the first take-up shaft 61 to release the unused non-woven fabric 62, eliminating the need for manual replacement.

[0031] Optionally, the vehicle ventilation system also includes one or more wind speed sensors (not shown in the figure). These sensors measure the wind speed at a specific location. For example, the wind speed sensor can be positioned between the separator 42 and the non-woven fabric 62. When the non-woven fabric 62 is filtering air normally, the flow resistance is low, and the wind speed is high. When the non-woven fabric 62 needs to be replaced, the flow resistance is low, and the wind speed drops below a preset range. At this time, the second take-up shaft 61 can be driven by a motor to rotate and replace the non-woven fabric 62. Alternatively, when the non-woven fabric 62 is damaged, the flow resistance decreases, and the wind speed increases above a preset range. In this case, the second take-up shaft 61 can also be driven by a motor to replace the non-woven fabric 62. Furthermore, multiple wind speed sensors can be used, located upstream of the fan, between the fan and the separator 42, and between the separator 42 and the non-woven fabric 62. Changes in wind speed measured at these corresponding locations are used to determine if any abnormalities have occurred, allowing for timely intervention.

[0032] The vehicle ventilation device in this embodiment, by setting up multi-stage filtration and separation, can separate and promptly discharge high levels of moisture and particulate impurities in the air of the mixed-iron car working environment into the collection chamber 512 while ensuring stable operation of the device. As the usage time increases, the water and particulate impurities in the collection chamber 512 gradually increase, but this will not affect the filtration efficiency. Furthermore, the non-woven fabric 62 of the terminal filter component 6 does not need to be manually replaced, which greatly extends the maintenance cycle and reduces the frequency of maintenance.

[0033] This invention provides a mixed-rail car, including the ventilation device described in this embodiment. By implementing the ventilation device, the number of times the mixed-rail car needs to be shut down for maintenance is effectively reduced.

[0034] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this invention.

[0035] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A vehicle body ventilation device, characterized in that, include: A blower (1) includes a housing (11) and a blower, the blower being installed inside the housing (11); A louvered filter (3) is installed on the housing (11) and located upstream of the fan, for filtering foreign objects in the air entering the fan; The separation component (4) includes a mounting base (41) and a separator (42). The mounting base (41) is installed inside the housing (11), and the separator (42) is installed on the mounting base (41). The air inlet (4211) of the separator (42) is located downstream of the fan. The separator (42) is capable of separating and discharging moisture and particulate impurities in the air. A collection housing (5) is installed on the housing (11) and located downstream of the separation assembly (4). The inlet end of the collection housing (5) is connected to the air outlet (4212) of the separator (42). The collection housing (5) can collect the moisture and particulate impurities discharged by the separator (42). The end filter assembly (6) is installed at the outlet end of the collection housing (5) and is used to filter light impurities in the air flowing out of the collection housing (5).

2. The vehicle body ventilation device according to claim 1, characterized in that, The mounting base (41) is provided with multiple mounting holes, which penetrate the mounting base (41) along the axial direction. The separator (42) is provided in multiple ways, and the multiple separators (42) are installed in the multiple mounting holes one by one.

3. The vehicle body ventilation device according to claim 2, characterized in that, The separator (42) includes a cylinder (421), which has an air inlet (4211) and an air outlet (4212). The air inlet (4211) is connected to the outlet of the fan. A guide plate (422) is fixedly provided at the air inlet (4211) of the cylinder (421). The guide plate (422) extends spirally along the axial direction of the cylinder (421) and the length of the guide plate (422) is less than the length of the cylinder (421).

4. The vehicle body ventilation device according to claim 3, characterized in that, The air guide plate (422) is configured as a plurality of such air guide plates (422) and the plurality of such air guide plates (422) are arranged at intervals along the circumference of the cylinder (421).

5. The vehicle body ventilation device according to claim 4, characterized in that, The separator (42) further includes an air outlet connector (423), which is fixedly connected to the air outlet (4212) of the cylinder (421). The air outlet connector (423) divides the air outlet (4212) of the cylinder (421) into a sewage outlet (4212a) and a clean air outlet (4212b). The sewage outlet (4212a) is arranged around the outer periphery of the clean air outlet (4212b). The air outlet connector (423) is provided with a small end opening (4231) and a large end opening (4232) that are connected. The small end opening (4231) is aligned with and connected to the clean air outlet (4212b).

6. The vehicle body ventilation device according to claim 5, characterized in that, Along the axial direction of the separator (42), the length of the air outlet connector (423) is greater than the pitch of the air guide plate (422).

7. The vehicle body ventilation device according to claim 5, characterized in that, The collecting housing (5) has a collecting cavity (51), and a partition ring (7) is installed in the collecting cavity (51). The partition ring (7) divides the collecting cavity (51) into a ventilation cavity (511) and a dirt collection cavity (512). The dirt collection cavity (512) is arranged around the outer periphery of the ventilation cavity (511). The partition ring (7) is provided with a dirt collection hole (71). The ventilation cavity (511) and the dirt collection cavity (512) are connected through the dirt collection hole (71). The large end opening (4232) and the sewage outlet (4212a) are both connected to the ventilation cavity (511). The end filter assembly (6) is used to filter the air flowing out of the ventilation cavity (511).

8. The vehicle body ventilation device according to claim 7, characterized in that, A rotating brush (8) is provided inside the ventilation cavity (511). The rotating brush (8) includes a brush head (81) and an input shaft (82). The brush head (81) is fixedly connected to one end of the input shaft (82). The other end of the input shaft (82) passes through the mounting base (41) and is coaxially fixedly connected to the output shaft of the fan. The end of the brush head (81) away from the output shaft contacts the separator ring (7).

9. The vehicle body ventilation device according to claim 8, characterized in that, The end filter assembly (6) includes a non-woven fabric (62) and two take-up shafts (61). The two take-up shafts (61) are spaced apart. The two ends of the non-woven fabric (62) are respectively wound around the two take-up shafts (61). The two take-up shafts (61) are installed at the end of the collection housing (5) away from the blower (1).

10. A mixed-iron car, characterized in that, Includes the vehicle body ventilation device as described in any one of claims 1-9.

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