Ventilation device for railway vehicle

Abstract

The utility model relates to a ventilation device for a railway vehicle, which comprises a shell, at least one group of ventilators is arranged in the shell, an air duct is arranged on the side part of the shell and extends along the length direction of a carriage, an air supply outlet is arranged at the end part of the air duct and is connected with a corresponding carriage air supply duct, and the air supply outlet is connected with the carriage air supply duct. An air supply hole for supplying air into the carriage is formed in a bottom plate of the air duct, and the air outlet end of the ventilator is connected with the air duct. The air duct structure is simplified, the height of the air conditioning unit can be reduced, and the air supply uniformity and the air volume in the compartment of the ventilation device can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioning, and in particular relates to a ventilation device for rail vehicles. Background Art

[0002] Rail vehicles operating in some areas are equipped with ventilation devices that are only used for ventilation in the vehicle compartment. The ventilation device includes a shell, a fan is installed in the shell, and an air outlet is installed on the shell corresponding to the fan.

[0003] At present, there are two ways to set the air outlet of the railway vehicle ventilation device. One is to set it on the bottom plate of the shell, and supply air to the car air supply duct from the bottom; the other is to set it on the end plate of the shell, and supply air to the car air supply duct from the end. The fresh air inlet 7 is set on the side plate of the shell.

[0004] like Figure 1 and Figure 2 As shown, a ventilation device 1 with end air supply is adopted, and the fan 2 is placed at the end of the ventilation device 1 and is arranged in the middle position in the width direction. Because rail vehicles generally install air supply ducts 4 for supplying air to the carriage at the side top positions on both sides of the carriage, the ventilation device 1 guides the supply air to the air supply ducts 4 on both sides of the ventilation device 1 through the front end air duct 3 to realize air supply to the carriage. No air duct is set at the bottom of the ventilation device 1 or an ultra-thin air duct 5 is set.

[0005] Under the action of the ventilator 2, the outside fresh air enters the interior of the ventilation device 1 through the fresh air inlet 7, and is then sent to the front air duct 3 and the ultra-thin air duct 5 at the bottom of the ventilation device 1 through the air outlet at the end, and then the middle air supply is further guided to the air supply ducts 4 on both sides through the guide device 6 provided at the front air duct 3, and then downwardly sent to the car through the air supply port on the side top plate of the car (not shown in the figure), thereby realizing air supply on both sides of the front end and both sides of the bottom of the ventilation device 1.

[0006] The end air supply structure of the conventional rail vehicle ventilation device has the following disadvantages:

[0007] 1) The size of the ventilator 2 is relatively large, and the height of the ventilation device is relatively high, generally greater than 300 mm, and the ventilation device cannot be completely embedded in the interior of the vehicle.

[0008] 2) The interior of the vehicle generally adopts two-side air supply. If the middle air supply method is adopted, a forked air duct structure is required, and the air duct structure is more complex and has greater resistance; if the two-side air supply method is adopted, the height of the ultra-thin air duct 5 below the air supply device is lower, the air volume is smaller, and the wind field uniformity is poor.

[0009] 3) If no air duct is provided at the bottom of the ventilation device 1, there will be a windless area at the bottom of the ventilation device, and the air supply uniformity will be poor. Utility Model Content

[0010] The main technical problem solved by the utility model is to provide a ventilation device for rail vehicles which is beneficial to reducing the height of the air conditioning unit and can improve the uniformity and air volume of the end air supply.

[0011] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0012] A ventilation device for rail vehicles comprises a shell, in which at least one set of fans is installed, an air duct is arranged on the side of the shell, the air duct extends along the length direction of the car, an air supply port is opened at the end of the air duct and is connected to the corresponding car air supply duct, an air supply hole for supplying air into the car is opened on the bottom plate of the air duct, and the air outlet end of the fan is connected to the air duct.

[0013] Furthermore, the air duct is installed on the outside of the shell side plate, an air outlet connected to the air duct is provided on the shell side plate, and the air outlet end of the ventilator is correspondingly connected to the side plate at the air outlet;

[0014] Alternatively, the air duct is embedded in the shell, a partition is provided in the shell, a chamber is separated by the partition in the shell to form the air duct, an air outlet connected to the air duct is provided on the partition, the fan is installed on the inner side of the partition, and the air outlet end of the fan is connected to the air outlet accordingly.

[0015] Furthermore, the air ducts are installed on both sides of the shell respectively, and the two air ducts are connected to the cabin air supply ducts located on both sides of the cabin respectively. Two sets of ventilators are arranged inside the shell and are connected to the air ducts on the corresponding sides respectively.

[0016] Furthermore, air supply ports are respectively provided at both ends of the air duct, and are respectively connected to the vehicle compartment air supply ducts located at both ends of the air duct.

[0017] Furthermore, the end face of the air duct is a vertical face, which is connected to the vehicle compartment air supply duct via a sealing flange.

[0018] Furthermore, the fan is installed in a tilted manner in the shell, and an end face of the air outlet end of the fan forms an angle with a bottom plate of the shell, and the angle of the angle is less than 90°.

[0019] Furthermore, corresponding to each of the air ducts, at least two ventilators are installed, and the air outlet ends of the ventilators are respectively connected to the air ducts.

[0020] Furthermore, an air guide plate is installed in the air duct to guide the air outlet of the ventilator to the air outlets on both sides according to a preset ratio.

[0021] Furthermore, an openable and closable inspection cover is installed on the top plate of the air duct.

[0022] Furthermore, a fresh air inlet is provided on the top plate of the shell, the fresh air inlet is located on the air suction side of the ventilator, and a rainwater separator is installed at the fresh air inlet.

[0023] In summary, the ventilation device for rail vehicles provided by the utility model has the following advantages compared with the prior art:

[0024] (1) The overall layout of the ventilation device is simple. The air ducts are arranged on both sides of the shell to achieve air supply at the end face of the air duct and the bottom area of ​​the air duct, so that there is no dead angle in the air supply in the car, which can ensure both the air volume and the uniformity of the air supply, and is also conducive to reducing the height of the ventilation device.

[0025] (2) The ventilation device uses air ducts installed on both sides of the shell to directly connect with the car air supply duct without further conversion, which not only simplifies the air duct structure but also facilitates the installation and commissioning of the ventilation device.

[0026] (3) The ventilation device installs the fan in the air duct at an angle, which can effectively utilize the internal space of the shell, that is, effectively utilize the width dimension, meet the fan selection and installation requirements, and help control the height of the shell within 200 mm, thereby reducing the height dimension pressure.

[0027] (4) The ventilation device is provided with an air guide plate inside the air duct, which is conducive to reasonably distributing the air volume in the air supply duct of the vehicle compartment at the front and rear ends of the ventilation device, thereby further improving the uniformity of the air supply in the vehicle compartment.

[0028] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0030] In the attached picture:

[0031] Figure 1 It is a schematic diagram of the structure of a ventilation device for end air supply in the prior art;

[0032] Figure 2 yes Figure 1 A top view of

[0033] Figure 3 It is a schematic diagram of the structure after the ventilation device of the utility model is connected with the air supply duct of the carriage;

[0034] Figure 4 It is a structural lateral schematic diagram of the utility model ventilation device.

[0035] In the figure:

[0036] Ventilation device 1, ventilator 2, front air duct 3, air supply duct 4, ultra-thin air duct 5, guide device 6, fresh air inlet 7;

[0037] Shell 8, top plate 81, bottom plate 82, side plate 83, ventilator 9, air outlet end surface 91, air duct 10, bottom plate 101, compartment air supply duct 11, air supply hole 12, fresh air outlet 13, partition 14, air outlet 15, air guide plate 16, air supply outlet 17.

[0038] It should be noted that the drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Embodiment 1:

[0043] like Figure 3 and Figure 4 As shown, this embodiment provides a ventilation device for rail vehicles, which is used to introduce fresh air from the outside into the interior of the vehicle to adjust the environment inside the vehicle.

[0044] On rail vehicles, in order to ensure the air supply volume and air supply uniformity in the car and improve the comfort level in the car, car air supply ducts 11 for supplying air to the car are generally installed at the side tops on both sides of the car. The car air supply ducts 11 are installed above the car side top plates and extend along the length direction of the car. A plurality of in-car air supply outlets (not shown in the figure) are opened on the side top plates of the car. The plurality of in-car air supply outlets are connected to the upper car air supply ducts 11, and the fresh air in the car air supply ducts 11 is delivered to the car through the in-car air supply outlets.

[0045] In this embodiment, the ventilation device includes a housing 8, which is fixed to the top plate of the vehicle body by bolts or other fasteners. At least one set of fans 9 is installed in the housing 8, and an air duct 10 is provided on the side of the housing 8. The side refers to the side in the width direction of the vehicle compartment (such as Figure 4 The air duct 10 is the same as the compartment air supply duct 11 and is also extended along the length direction of the compartment. An air supply port 17 is provided at the end of the air duct 10. The end of the air duct 10 refers to the end in the length direction of the compartment. The end of the air duct 10 is fixedly connected to the corresponding compartment air supply duct 11 through a sealing flange. An air supply hole 12 for supplying air to the room is provided on the bottom plate 101 of the air duct 10. The air outlet end of the ventilator 9 is connected to the air duct 10. A fresh air port 13 is provided on the housing 8. The fresh air port 13 is provided on the air suction side of the ventilator 9.

[0046] Under the action of the ventilator 9, fresh air outside the vehicle enters the interior of the shell 8 through the fresh air outlet 13, further enters the air duct 10, enters the cabin air supply duct 11 along the air duct 10, and is finally delivered to the cabin from the cabin air supply outlet on the side top plate of the cabin.

[0047] In this embodiment, air supply holes 12 are also provided on the bottom plate 101 of the air duct 10 to realize downward air supply in the bottom area of ​​the ventilation device body. Compared with the prior art, it can avoid the problem of dead corners of air supply caused by no wind or only a small amount of air in the bottom area of ​​the ventilation device body, so that the air supply in the car is more uniform, and it is beneficial to reduce the height of the ventilation device so that the height of the ventilation device is controlled below 200 mm.

[0048] Corresponding to the two carriage air supply ducts 11 installed on the side tops on both sides of the carriage, in the present embodiment, air ducts 10 are preferably installed on both sides of the shell 8, and the two air ducts 10 are extended along the length direction of the carriage, and are respectively connected with the carriage air supply ducts 11 located on both sides of the carriage, and two groups of ventilators 9 are arranged inside the shell 8, which are respectively connected to the air ducts 10 on the corresponding sides, so as to supply air to the carriage air supply ducts 11 on both sides.

[0049] One or two ventilation devices are generally installed on the top of each carriage, and are also installed in the middle area of ​​the carriage. Corresponding to each ventilation device, a carriage air supply duct 11 is provided at both ends of the air duct 10. Therefore, in this embodiment, it is preferred that air supply outlets 17 are respectively provided at both ends of each air duct 10, which are respectively connected to the carriage air supply ducts 11 located at both ends of the air duct 10.

[0050] The number of air ducts 10 provided matches the number of air supply ducts 11 provided in the compartment. For a structure in which only one air supply duct 11 is provided in the compartment, only one air duct 10 may be provided on one side of the housing 8. For a structure in which the ventilation device is installed at the end of the compartment, only one air supply port may be provided at one end of the air duct 10 to connect with the air supply duct 11 in the compartment.

[0051] In order to make the connection between the air duct 10 and the carriage air supply duct 11 simpler and more convenient, it is also preferred in this embodiment that the end face of the air duct 10 is a vertical face, the air supply port 17 is provided on the end face of the air duct 10, and the end face of the air duct 10 is connected to the carriage air supply duct 11 through a sealing flange (not shown in the figure). The cross-sectional area of ​​the air duct 10 and the carriage air supply duct 11 can be the same or different. This structure utilizes the air duct 10 installed on both sides of the shell 8 to directly connect with the carriage air supply duct 11 without further switching, which not only simplifies the air duct structure, but also facilitates the installation and commissioning of the ventilation device.

[0052] In the present embodiment, it is also preferred that the air duct 10 is embedded in the interior of the shell 8, and a partition 14 is provided in the shell 8. The partition 14 separates a chamber in the shell 8 to form the air duct 10, that is, the air duct 10 is surrounded by the top plate 81, the bottom plate 82, the side plate 83 and the partition 14 of the shell 8, and an air outlet 15 is opened on the partition 14, and the air outlet 15 is connected with the air duct 10. The fan 9 is installed on the inner side of the partition 14, and the air outlet end of the fan 9 is fixedly connected to the partition 14 corresponding to the air outlet 15 by screws.

[0053] The above-mentioned embedded air duct structure can simplify the structure of the ventilation device under the premise of ensuring that the ventilation volume remains unchanged, and the original size of the housing 8 can be kept unchanged, without changing the connection relationship with other components in the car, and is not limited by the original installation space of the vehicle. It can also be conveniently connected to the car air supply duct 11 located above the car side roof plate to realize air supply to the car air supply duct 11 on the car side roof, which is conducive to reducing the overall height of the ventilation device. At the same time, it is also convenient to modify the existing ventilation device structure, and the modification cost is low.

[0054] In this embodiment, it is further preferred that two fans 9 are provided for each air duct 10, and two air outlets 15 are provided on the partition 14, and the air outlet ends of the two fans 9 are respectively connected to the two air outlets 15 and communicated with the air duct 10. The provision of two fans 9 can not only ensure the ventilation volume of the ventilation device, but also reduce the size of each fan 9, thereby helping to reduce the height of the ventilation device. Of course, three or more fans 9 can also be provided according to the actual air volume requirements, and the model of the fan 9 can be selected.

[0055] In order to ensure the uniformity of the air volume in the carriage air supply duct 11 at both ends of the air duct 10, it is further preferred in the present embodiment that an air guide plate 16 is installed in the air duct 10, and the air guide plate 16 includes two side panels arranged in an eight-shape, and the air guide plate 16 is fixed to the partition plate 14 or to the bottom plate 101 of the air duct 10 by screws, and both side panels are in an arc shape to reduce the resistance during air guiding.

[0056] When two fans 9 are installed, the air guide plate 16 is installed between the two air outlets 15 (i.e., the two fans 9), and the air outlets of the two fans 9 are equally directed to the air supply outlets 17 on both sides. With this installation structure, the air volume in the carriage air supply duct 11 at both ends is the same.

[0057] Of course, the amount of air supplied to the air supply ducts 11 at both ends of the carriages can also be adjusted by adjusting the installation position of the air guide plate 16, that is, according to the required air volume of the air supply ducts 11 at both ends of the carriages, the air is guided to the air supply ports 17 on both sides according to a preset ratio. This structure is conducive to the reasonable distribution of the air volume in the air supply ducts 11 at the front and rear ends of the guiding ventilation device, thereby further improving the uniformity of the air supply in the carriage.

[0058] In this embodiment, it is also preferred that the fan 9 is installed obliquely in the housing 8, and the air outlet end surface 91 of the fan 9 and the bottom plate 82 of the housing 8 have an angle, and the angle of the angle is less than 90°. This installation structure can effectively utilize the internal space of the housing 8, that is, effectively utilize the width dimension, meet the fan selection and installation, and is conducive to controlling the height of the housing 8 within 200 mm, reducing the height dimension pressure, and can achieve different air volume output by adjusting the number of fans 9.

[0059] In this embodiment, a fresh air inlet 13 is provided on the top plate 81 of the housing 8, the fresh air inlet 13 is located on the air suction side of the ventilator 9, and a rainwater separator (not shown in the figure) is installed at the fresh air inlet 13. Further preferably, two fresh air inlets 13 are provided on the top plate 81, and the two fresh air inlets 13 are symmetrically arranged at both ends of the top plate 81 in the length direction of the carriage.

[0060] In this embodiment, it is further preferred that an openable and closable inspection cover (not shown in the figure) is installed on the top plate 81 of the air duct 10 to facilitate cleaning of the interior of the air duct 10 .

[0061] In this ventilation device, fresh air from the outside enters the interior of the shell 8 from the fresh air inlet 13 under the action of the ventilator 9, then flows out through the air outlets 15 on both sides into the air ducts 10 on both sides, and further enters the two compartment air supply ducts 11, and finally is delivered into the compartment through the compartment air supply port (not shown in the figure) at the bottom of the compartment air supply duct 11.

[0062] The ventilation device for rail vehicles provided by the utility model has the following advantages:

[0063] 1. The overall layout of the ventilation device is simple. The air ducts are arranged on both sides of the shell to achieve air supply at the end face of the air duct and the bottom area of ​​the air duct, so that there is no dead angle in the car compartment, which can ensure both the air volume and the uniformity of the air supply, and is also conducive to reducing the height of the ventilation device.

[0064] 2. The ventilation device utilizes the air ducts installed on both sides of the shell to directly connect with the carriage air supply duct without further switching, which not only simplifies the air duct structure but also facilitates the installation and commissioning of the ventilation device.

[0065] 3. The ventilation device installs the fan in the air duct at an angle, which can effectively utilize the internal space of the shell, that is, effectively utilize the width dimension, meet the fan selection and installation, and is conducive to controlling the height of the shell within 200mm, reducing the height dimension pressure.

[0066] 4. The ventilation device is provided with an air guide plate inside the air duct, which is conducive to reasonably distributing the air volume in the air supply duct of the car compartment at the front and rear ends of the ventilation device, and further improving the uniformity of the air supply in the car compartment.

[0067] 5. The ventilation device embeds the air duct inside the shell to ensure that the ventilation device simplifies the structure of the ventilation device under the premise of unchanged ventilation volume, and can keep the original size of the shell unchanged, without changing the connection relationship with other components in the car, and is not limited by the original installation space of the vehicle. It can also be conveniently connected to the car air supply duct 11 located above the car side top plate to realize air supply to the car air supply duct 11 on the car side top, which is conducive to reducing the overall height of the ventilation device. At the same time, it is also convenient to modify the existing ventilation device structure, and the modification cost is low.

[0068] Embodiment 2:

[0069] The difference from the first embodiment is that, in this embodiment, the air duct 10 is separately installed on the outside of the side panel 83 of the shell 8. The air duct 10 is a structure with an open side, which is fixedly connected to the side panel 83 of the shell 8 through a sealing flange. An air outlet 15 is arranged on the side panel 83, and a fan 9 is installed on the inner side of the side panel 83 of the shell 8 corresponding to the air outlet 15.

[0070] The height of the air duct 10 is the same as the height of the shell side plate 83, and can also be less than or higher than the height of the side plate 83. The bottom plate 101 of the air duct 10 is flush with the shell bottom plate 82, and the top plate of the air duct 10 is lower or higher than the top plate 81 of the shell 8 in the vertical direction.

[0071] The air duct structure provided in this embodiment is different from the structure described in the first embodiment. The air duct 10 can be disassembled and assembled separately, which is convenient for cleaning and maintenance of the air duct 10. In order to ensure that the overall size of the ventilation device remains unchanged, the size of the shell 8 is smaller than that of the traditional ventilation device shell 8, at least the size in the width direction of the car is reduced, leaving space for installing the air duct 10 on both sides.

[0072] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A ventilation device for a rail vehicle, comprising a housing, in which at least one set of fans is installed, Features: An air duct is arranged on the side of the shell, and the air duct extends along the length direction of the car body. An air supply port is opened at the end of the air duct and is connected to the corresponding car body air supply duct. An air supply hole for supplying air into the car body is opened on the bottom plate of the air duct, and the air outlet end of the ventilator is connected to the air duct.

2. The rail vehicle ventilation device according to claim 1, Features: The air duct is installed on the outside of the shell side plate, an air outlet connected to the air duct is provided on the shell side plate, and the air outlet end of the ventilator is correspondingly connected to the side plate at the air outlet; Alternatively, the air duct is embedded in the shell, a partition is provided in the shell, a chamber is separated by the partition in the shell to form the air duct, an air outlet connected to the air duct is provided on the partition, the fan is installed on the inner side of the partition, and the air outlet end of the fan is connected to the air outlet accordingly.

3. The rail vehicle ventilation device according to claim 1, Features: The air ducts are installed on both sides of the shell respectively, and the two air ducts are connected to the carriage air supply ducts located on both sides of the carriage respectively. Two sets of ventilators are arranged inside the shell and are connected to the air ducts on the corresponding sides respectively.

4. The rail vehicle ventilation device according to claim 1, Features: Air supply ports are respectively provided at both ends of the air duct, and are respectively connected to the vehicle compartment air supply ducts located at both ends of the air duct.

5. The rail vehicle ventilation device according to claim 1, Features: The end face of the air duct is a vertical face, and is connected to the vehicle compartment air supply duct via a sealing flange.

6. The rail vehicle ventilation device according to claim 1, Features: The fan is installed obliquely in the shell, and an end surface of the air outlet end of the fan forms an angle with the bottom plate of the shell, and the angle of the angle is less than 90°.

7. The rail vehicle ventilation device according to claim 1, Features: Corresponding to each of the air ducts, at least two ventilators are installed, and the air outlet ends of the ventilators are respectively connected to the air ducts.

8. The rail vehicle ventilation device according to claim 7, Features: An air guide plate is installed in the air duct to guide the air outlet of the ventilator to the air outlets on both sides according to a preset ratio.

9. The rail vehicle ventilation device according to claim 1, Features: An openable and closable inspection cover is installed on the top plate of the air duct.

10. A ventilation device for a rail vehicle according to any one of claims 1 to 9, Features: A fresh air inlet is arranged on the top plate of the shell, the fresh air inlet is located on the air suction side of the ventilator, and a rainwater separator is installed at the fresh air inlet.

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