CN220513712U

CN220513712U - Sand wind filtering structure of rail vehicle and rail vehicle

Info

Publication number: CN220513712U
Application number: CN202321967341.7U
Authority: CN
Inventors: 钟元木; 喻海洋; 李言义; 高洪镇; 高磊; 陈丽菲
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-02-23
Anticipated expiration: 2033-07-25

Abstract

The utility model relates to the technical field of railway vehicles, and provides a wind and sand filtering structure of a railway vehicle and the railway vehicle. The first-stage filtering unit is arranged on the side wall of the car body, an air inlet is formed in the outer surface of the car body, a first air outlet and a second air outlet are formed in the car body, the first air outlet is suitable for being connected with a radiating pipe, and the radiating pipe is suitable for extending to a radiating area of a cooling device of the railway car. The second grade filter unit sets up inside the automobile body, and the air inlet end and the second air outlet of second grade filter unit are linked together, and the air-out end of second grade filter unit is connected with the tuber pipe, and the tuber pipe is suitable for being connected to the equipment of using wind. Through the cooperation of the first-stage filtering unit and the second-stage filtering unit, the sand-preventing capability of the railway vehicle can be improved, the abrasion of internal devices is avoided, the riding comfort is improved, and the sand-preventing filtering is effectively realized.

Description

Sand wind filtering structure of rail vehicle and rail vehicle

Technical Field

The utility model relates to the technical field of railway vehicles, in particular to a sand wind filtering structure of a railway vehicle and the railway vehicle.

Background

When the railway vehicle operates in a high-sand wind environment, a large amount of sand wind can be contained in cooling air for equipment in the railway vehicle, so that the equipment in the railway vehicle is worn and the equipment has overheat faults; for the cab and passenger compartment, windblown sand can cause internal sand accumulation that affects comfort.

Disclosure of Invention

The utility model provides a wind and sand filtering structure of a railway vehicle, which is used for solving the technical problems of abrasion of internal devices and insufficient riding comfort caused by insufficient wind and sand prevention capability of the railway vehicle in the prior art and realizing effective wind and sand filtering.

The utility model further provides a railway vehicle.

The utility model provides a sand wind filtering structure of a railway vehicle, which comprises the following components:

the first-stage filtering unit is arranged on the side wall of the car body, an air inlet is formed in the outer surface of the car body, a first air outlet and a second air outlet are formed in the car body, the first air outlet is suitable for being connected with a radiating pipe, and the radiating pipe is suitable for extending to a radiating area of a cooling device of the railway car;

the secondary filter unit is arranged inside the vehicle body, the air inlet end of the secondary filter unit is communicated with the second air outlet, and the air outlet end of the secondary filter unit is connected with an air pipe which is suitable for being connected to air-using equipment.

According to the wind and sand filtering structure of the railway vehicle, the primary filtering unit comprises the louver, and the louver is suitable for being inlaid on the side wall of the vehicle body.

According to the wind and sand filtering structure of the railway vehicle, the secondary filtering unit comprises:

a housing;

the filter is arranged at the air inlet end of the shell;

the dust collecting box is arranged in the shell, a dust collecting cavity is formed in the dust collecting box, and the filter is communicated with the dust collecting cavity and is used for enabling sand and dust to fall into the dust collecting cavity;

the fan is arranged in the shell, is communicated with the dust outlet of the dust collecting box and is used for extracting sand and dust in the dust collecting cavity.

According to the wind and sand filtering structure of the railway vehicle, the filter comprises a straight-through cyclone tube type filter, and the dust collecting box is positioned below the filter.

According to the wind and sand filtering structure of the railway vehicle, the outer side wall of the shell is provided with the annular connecting part around the wind outlet end, and the wind pipe is suitable for being clamped to the annular connecting part.

According to the sand wind filtering structure of the railway vehicle, the adhesive piece for connecting the air pipe and the annular connecting part is arranged between the air pipe and the annular connecting part.

According to the sand wind filtering structure of the railway vehicle, the air pipe is clamped in the annular connecting part, the first mounting groove is formed in the inner peripheral surface of the annular connecting part or the outer peripheral surface of the air pipe, the bonding piece is suitable for being mounted in the first mounting groove, and the bonding piece extends out of the notch of the first mounting groove.

According to the sand wind filtering structure of the railway vehicle, the air pipe is clamped outside the annular connecting part, a second mounting groove is formed in the outer peripheral surface of the annular connecting part or the inner peripheral surface of the air pipe, the bonding piece is suitable for being mounted in the second mounting groove, and the bonding piece extends out of the notch of the second mounting groove.

According to the sand wind filtering structure of the railway vehicle, the wind equipment comprises the electrical cabinet, the electrical cabinet is suitable for being provided with the micro positive pressure mechanism, and the micro positive pressure mechanism is used for sucking filtered air into the electrical cabinet and discharging the original air out of the electrical cabinet.

The utility model also provides a railway vehicle, which comprises a vehicle body, wherein the vehicle body is provided with the sand filtering structure of the railway vehicle.

According to the wind-blown sand filtering structure of the railway vehicle, the primary filtering unit is used for carrying out primary filtering on the wind-blown sand-containing air, the primary filtered air enters the radiating pipe through the first air outlet and is blown to the radiating area of the cooling equipment of the railway vehicle through the radiating pipe, heat is taken away at the cooling device and is discharged, heat exchange at the cooling device is achieved, the primary filtered air enters the secondary filtering unit through the second air outlet for secondary filtering, the cleanliness of the air can meet the requirement through the secondary filtering, and the secondary filtered air is used for wind consuming equipment to achieve safe wind consumption. This sand-blast filtration passes through the cooperation of one-level filter unit and second grade filter unit, can promote rail vehicle prevent wind husky ability, avoids inside device wearing and tearing, improves and takes the comfort level not enough, realizes effectively sand-blast filtration, and is convenient for dispel the heat to cooling device.

According to the railway vehicle provided by the embodiment of the utility model, through installing the wind and sand filtering structure of the railway vehicle on the vehicle body, the primary filtering unit is utilized to perform primary filtering on the air containing wind and sand, the primary filtered air enters the radiating pipe through the first air outlet on one hand, is blown to the radiating area of the cooling equipment of the railway vehicle through the radiating pipe, is used for taking away heat at the cooling device and discharging the heat, so that heat exchange at the cooling device is realized, the primary filtered air enters the secondary filtering unit through the second air outlet on the other hand, the secondary filtering is performed, the cleanliness of the air can be ensured to meet the requirement through the secondary filtering, and the secondary filtered air is used for wind using equipment, so that safe wind using is realized. This sand-blast filtration passes through the cooperation of one-level filter unit and second grade filter unit, can promote rail vehicle prevent wind husky ability, avoids inside device wearing and tearing, improves and takes the comfort level not enough, realizes effectively sand-blast filtration, and is convenient for dispel the heat to cooling device.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a sand blast filter structure of a railway vehicle provided by the utility model;

FIG. 2 is a schematic diagram of a two-stage filter unit according to the present utility model;

FIG. 3 is a graph of simulation analysis results of the internal and external flow fields of the primary filter unit provided by the utility model.

Reference numerals:

100. a first stage filtration unit; 200. a secondary filtering unit; 210. a housing; 220. a filter; 230. a dust collection box; 240. a blower; 250. an annular connecting part; 300. and a vehicle body.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

An embodiment of the present utility model is described below with reference to fig. 1 to 3, and the present embodiment provides a sand blast filtering structure of a railway vehicle, which includes a primary filtering unit 100 and a secondary filtering unit 200. The first-stage filtering unit 100 is arranged on the side wall of the car body 300, an air inlet is formed on the outer surface of the car body 300 by the first-stage filtering unit 100, a first air outlet and a second air outlet are formed in the car body 300 by the first-stage filtering unit 100, the first air outlet is suitable for being connected with a radiating pipe, and the radiating pipe is suitable for extending to a radiating area of a cooling device of the railway car. The secondary filter unit 200 is disposed inside the vehicle body 300, the air inlet end of the secondary filter unit 200 is communicated with the second air outlet, and the air outlet end of the secondary filter unit 200 is connected with an air pipe, which is suitable for being connected to an air consumption device.

In this embodiment, the primary filtering unit 100 is used for primarily filtering the air containing the wind sand, the primarily filtered air enters into the radiating pipe through the first air outlet on one hand, and is blown to the radiating area of the cooling equipment of the railway vehicle through the radiating pipe, and is used for taking away heat and discharging at the cooling device, so that the heat exchange at the cooling device is realized, and the primarily filtered air enters into the secondary filtering unit 200 through the second air outlet for secondary filtering on the other hand, so that the cleanliness of the air can be ensured to meet the requirement through secondary filtering, and the secondarily filtered air is used for the wind using equipment, so that the safe wind using is realized. This sand-blast filtration passes through the cooperation of primary filter unit 100 and secondary filter unit 200, can promote rail vehicle prevent wind husky ability, avoids inside device wearing and tearing, improves and takes the comfort level not enough, realizes effectively sand-blast filtration, and is convenient for dispel the heat to cooling device.

The radiating pipe extends to the radiating area of the cooling device of the railway vehicle, heat of the radiating area of the cooling device is taken away by the radiating fan at the radiating area of the cooling device, and then the heat is discharged from the air outlet of the radiating area, and in the hot air discharging process, the residual wind sand attached to the hot air can be discharged outside the vehicle, so that the deposition of the residual wind sand can not be caused. Because the sensitivity to wind and sand at the position of the heat dissipation area of the cooling device is not high, the preliminarily filtered air is directly used.

According to the wind and sand filtering structure of the railway vehicle provided by the utility model, the primary filtering unit 100 comprises a shutter which is suitable for being inlaid on the side wall of the vehicle body 300. The air containing the wind sand is subjected to preliminary filtration through the shutter, and the air after the preliminary filtration is divided into two paths of air which are respectively used for heat dissipation and wind equipment.

The shutter is inlaid in the side wall of the vehicle body 300, and it can be understood that the side wall of the vehicle body 300 is provided with a mounting hole, the mounting hole can be a square hole, the shutter is inlaid in the mounting hole and is mutually fixed with the side wall of the vehicle body 300 in a fastening piece or welding mode, so as to ensure the stability of the position of the shutter.

As shown in fig. 3, according to the simulation analysis result of the inner and outer flow fields of the primary filter unit 100, sand and dust deposition is not generated inside the vehicle body 300 after the primary filtering through the louver.

Wherein, the outside of shutter is the air intake, and the inboard of shutter can be connected with and collect the device for collect the air after the preliminary filtration, collect the inboard of the whole shutter of one side cover of device, collect the opposite side of device and form first air outlet and second air outlet in automobile body 300 inside, so that the connection of pipeline.

As shown in fig. 2, the secondary filter unit 200 includes a housing 210, a filter 220, a dust box 230, and a fan 240. The filter 220 is mounted to the air intake end of the housing 210. The dust box 230 is installed in the housing 210, a dust collecting chamber is formed in the dust box 230, and the filter 220 is communicated with the dust collecting chamber for dropping dust into the dust collecting chamber. The blower 240 is installed in the housing 210, and the blower 240 is communicated with the dust outlet of the dust box 230 for drawing out the dust in the dust collecting chamber.

The filter 220 is installed through the shell 210, so that the air after preliminary filtration can be subjected to secondary filtration through the filter 220, the air after secondary filtration is ensured to be dust-free air, the dust filtered by the filter 220 can fall into the dust collecting cavity of the dust collecting box 230, the blower 240 is started to pump out the dust in the dust collecting cavity so that the dust can be directly discharged, the structure can be adopted to synchronously carry out secondary filtration dust removal and dust discharge, periodic cleaning of the inside of the dust collecting box 230 is not needed, and the maintenance cost of the wind-sand filtering device is reduced.

The type of the blower 240 can be reasonably selected according to the amount of sand and dust. The fan 240 can be additionally provided with a power control system, at the moment, the proper air draft amount can be adjusted according to the amount of sand and dust, and the energy-saving effect is achieved while the sand and dust are discharged.

The filter 220 may be detachably mounted to the air inlet end of the housing 210 by fasteners, facilitating installation and maintenance of the filter 220. To further facilitate the assembly and disassembly of the filter 220, the filter 220 is also detachably connected to the dust box 230. Wherein, the detachable connection mode comprises screw connection and the like.

Wherein the filter 220 comprises a straight-through cyclone tube filter, the filtering efficiency of which meets the corresponding requirements, and the dust box 230 is positioned below the filter 220. The through cyclone tube filter can make the filtered sand and dust drop down directly, and then make the sand and dust drop into the dust collecting cavity of dust collecting below.

To facilitate the flow of dust at the bottom of the dust chamber, the bottom of the dust box 230 is provided with a slope and the dust outlet is positioned near the lower side of the slope, thereby facilitating the complete removal of dust by the fan 240. It will be appreciated that the ramp has a higher side and a lower side, and as the dust falls onto the ramp, it will gradually slide down the ramp, with the dust outlet being located on the lower side near the ramp, and the fan 240 being able to draw away as much of all the dust in the dust chamber as possible, so that the dust can be discharged in time.

In this embodiment, the outer sidewall of the housing 210 is provided with an annular connecting portion 250 around the air outlet end, and the air duct is adapted to be clamped to the annular connecting portion 250. As shown in fig. 2, an annular connection 250 is disposed around the circumferential side of the air outlet end. The air duct is adapted to be directly clamped with the annular connecting portion 250 in a sealing manner, so that air subjected to secondary filtration can enter the air duct, and cooling is performed on the air-using equipment.

Wherein, be equipped with the bonding part that is used for connecting the two between tuber pipe and the annular connecting portion 250, the bonding part is used for bonding tuber pipe and annular connecting portion 250 to make the connection of two more firm reliable, can also play airtight effect simultaneously. Illustratively, the adhesive member is a hollow adhesive strip, a foam adhesive strip, or the like.

The shape of the air pipe is matched with the shape of the annular connecting part 250, and the shape of the annular connecting part 250 is matched with the shape of the air outlet. Illustratively, the air outlet is configured as a circular shape, the air duct is a circular pipe, and the annular connecting portion 250 is a circular annular connecting portion 250.

In this embodiment, the air duct is clamped in the annular connecting portion 250, the inner peripheral surface of the annular connecting portion 250 or the outer peripheral surface of the air duct is provided with a first mounting groove, the adhesive member is suitable for being mounted in the first mounting groove, and the adhesive member extends out of the notch of the first mounting groove.

It can be appreciated that when the inner diameter of the annular connecting portion 250 is the same as the outer diameter of the air duct, the air duct will be clamped to the inner side of the annular connecting portion 250, and the first mounting groove is formed on the inner circumferential surface of the annular connecting portion 250 or the outer circumferential surface of the air duct, so that the adhesive member can be conveniently fixed at the position of the adhesive member during assembly, and the annular connecting portion 250 and the air duct can be conveniently and directly bonded and connected after being clamped.

The adhesive piece can be an adhesive tape with single-sided adhesive, one side of the adhesive piece is clamped in the first mounting groove and is abutted against the bottom surface of the first mounting groove, the other side of the adhesive piece is an adhesive side, and the adhesive side extends out of the notch of the first mounting groove so as to be adhered to the inner peripheral surface of the annular connecting part 250 or the outer peripheral surface of the air pipe. The adhesive piece may be a double-sided adhesive tape, one side of the adhesive piece is clamped in the first mounting groove and is adhered to the bottom surface of the first mounting groove, and the other side of the adhesive piece extends out of the notch of the first mounting groove, so that the adhesive piece is adhered to the inner peripheral surface of the annular connecting portion 250 or the outer peripheral surface of the air pipe.

In another embodiment, the air duct is clamped outside the annular connecting portion 250, a second mounting groove is formed on the outer peripheral surface of the annular connecting portion 250 or the inner peripheral surface of the air duct, the adhesive member is suitable for being mounted in the second mounting groove, and the adhesive member extends out of the notch of the second mounting groove.

It can be appreciated that when the outer diameter of the annular connecting portion 250 is the same as the inner diameter of the air duct, the air duct will be clamped to the outer side of the annular connecting portion 250, and the second mounting groove is formed on the outer circumferential surface of the annular connecting portion 250 or the inner circumferential surface of the air duct, so that the adhesive member can be conveniently fixed at the position of the adhesive member during assembly, and the annular connecting portion 250 and the air duct can be conveniently and directly bonded and connected after being clamped.

The adhesive piece can be an adhesive tape with single-sided adhesive, one side of the adhesive piece is clamped in the second mounting groove and is abutted against the bottom surface of the second mounting groove, the other side of the adhesive piece is an adhesive side, and the adhesive side extends out of the notch of the second mounting groove so as to be adhered to the inner peripheral surface of the annular connecting part 250 or the outer peripheral surface of the air pipe. The adhesive piece may be a double-sided adhesive tape, one side of the adhesive piece is clamped in the second mounting groove and is adhered to the bottom surface of the second mounting groove, and the other side of the adhesive piece extends out of the notch of the second mounting groove, so that the adhesive piece is adhered to the inner peripheral surface of the annular connecting portion 250 or the outer peripheral surface of the air pipe.

According to the embodiment of the utility model, the wind equipment for the wind sand filtering structure of the railway vehicle comprises an electrical cabinet, wherein the electrical cabinet is suitable for being provided with a micro positive pressure mechanism and is used for sucking filtered air into the electrical cabinet and discharging the original air out of the electrical cabinet.

Through setting up little malleation mechanism in the regulator cubicle, can introduce the air of secondary filtration sand dust to the regulator cubicle inside to the regulator cubicle is inside to ventilate and cool down.

The wind using equipment can also comprise a diesel engine, a main engine, a traction motor, an air compressor and the like. The air after secondary filtration is conveyed to the air utilization device through the air pipe, and the air to be used by the air utilization device is directly discharged out of the vehicle from the air utilization device after being used.

In another aspect, the present utility model also provides a rail vehicle, including a vehicle body 300, where the vehicle body 300 is provided with a sand-blast filtering structure of the rail vehicle as in the previous embodiment.

In this embodiment, through installing the aforementioned sand blast filter structure of the rail vehicle at the vehicle body 300, utilize the primary filter unit 100 to carry out preliminary filtration to the air that contains sand blast, preliminary filtration's air enters into the cooling tube through first air outlet on the one hand, and blow the cooling zone to rail vehicle's cooling device's cooling tube through the cooling tube, be used for taking away heat and discharging in cooling device department, realize the heat exchange of cooling device department, preliminary filtration's air enters into the secondary filter unit 200 through the second air outlet on the other hand and carries out secondary filtration, can ensure through secondary filtration that the cleanliness factor of air accords with the requirement, use secondary filtration's air to wind equipment, realize safe wind. This sand-blast filtration passes through the cooperation of primary filter unit 100 and secondary filter unit 200, can promote rail vehicle prevent wind husky ability, avoids inside device wearing and tearing, improves and takes the comfort level not enough, realizes effectively sand-blast filtration, and is convenient for dispel the heat to cooling device.

In this embodiment, the car body 300 is especially a car body of a car head part of a railway car, the primary filter unit 100 is installed on the car body 300 of the car head part, and the secondary filter unit 200 is installed in the car body 300 of the car head part, so that part of air after filtration can quickly dissipate heat of the cooling device, and the other part of air can be used for supplying air to equipment in the car head equipment bin.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A sand blast filter structure of a rail vehicle, comprising:

the first-stage filtering unit (100) is arranged on the side wall of the vehicle body (300), an air inlet is formed in the outer surface of the vehicle body (300) by the first-stage filtering unit (100), a first air outlet and a second air outlet are formed in the vehicle body (300) by the first-stage filtering unit (100), the first air outlet is suitable for being connected with a radiating pipe, and the radiating pipe is suitable for extending to a radiating area of a cooling device of the railway vehicle;

the secondary filter unit (200) is arranged inside the vehicle body (300), the air inlet end of the secondary filter unit (200) is communicated with the second air outlet, the air outlet end of the secondary filter unit (200) is connected with an air pipe, and the air pipe is suitable for being connected to air-using equipment.

2. The sand filtering structure of a railway vehicle according to claim 1, characterized in that the primary filtering unit (100) comprises a shutter adapted to be inlaid in a side wall of a vehicle body (300).

3. The sand filtering structure of a railway vehicle according to claim 1, characterized in that the secondary filtering unit (200) comprises:

a housing (210);

a filter (220) mounted to the air inlet end of the housing (210);

a dust collection box (230) mounted in the shell (210), wherein a dust collection cavity is formed in the dust collection box (230), and the filter (220) is communicated with the dust collection cavity and is used for enabling sand and dust to fall into the dust collection cavity;

the fan (240) is arranged in the shell (210), and the fan (240) is communicated with a dust outlet of the dust collecting box (230) and is used for extracting sand and dust in the dust collecting cavity.

4. A sand filtering structure of a rail vehicle according to claim 3, characterized in that the filter (220) comprises a straight through swirl tube filter, the dust box (230) being located below the filter (220).

5. A sand filtering structure of a rail vehicle according to claim 3, characterized in that the outer side wall of the housing (210) is provided with an annular connecting portion (250) around the air outlet end, and the air duct is adapted to be clamped to the annular connecting portion (250).

6. The sand blast filter structure of a rail vehicle according to claim 5, characterized in, that an adhesive member for connecting the air duct and the annular connecting portion (250) is provided between them.

7. The sand blast filtering structure of a rail vehicle according to claim 6, wherein the blast pipe is clamped in the annular connecting portion (250), a first mounting groove is formed on an inner peripheral surface of the annular connecting portion (250) or an outer peripheral surface of the blast pipe, the adhesive member is adapted to be mounted in the first mounting groove, and the adhesive member extends out of a notch of the first mounting groove.

8. The sand blast filtering structure of the rail vehicle according to claim 6, wherein the blast pipe is clamped outside the annular connecting portion (250), a second mounting groove is formed on the outer circumferential surface of the annular connecting portion (250) or the inner circumferential surface of the blast pipe, the bonding piece is suitable for being mounted in the second mounting groove, and the bonding piece extends out of the notch of the second mounting groove.

9. A sand blast filter structure according to any of claims 1-8, wherein said wind power plant comprises an electrical cabinet adapted to be fitted with a micro positive pressure mechanism for drawing filtered air into said electrical cabinet and for exhausting original air out of said electrical cabinet.

10. A rail vehicle, characterized by comprising a vehicle body (300), which vehicle body (300) is provided with a sand-blast filter structure of a rail vehicle according to any one of claims 1-9.