CN112849181A - Air supply system and multi-layer railway vehicle - Google Patents
Air supply system and multi-layer railway vehicle Download PDFInfo
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- CN112849181A CN112849181A CN202110267672.9A CN202110267672A CN112849181A CN 112849181 A CN112849181 A CN 112849181A CN 202110267672 A CN202110267672 A CN 202110267672A CN 112849181 A CN112849181 A CN 112849181A
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- 238000004378 air conditioning Methods 0.000 claims abstract description 28
- 230000003068 static effect Effects 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 48
- 238000009423 ventilation Methods 0.000 description 16
- 238000005192 partition Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 239000002356 single layer Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0018—Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/009—Means for ventilating only
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Abstract
The embodiment of the application provides an air supply system and a multi-layer railway vehicle, relates to the technology of railway vehicles, and is used for solving the problems that in the related art, the production cost and the maintenance cost of the multi-layer vehicle are increased due to the fact that the structure of an electric air door device is complex and the failure rate is high. Wherein, air supply system for multilayer rail vehicle includes: an air conditioning unit; a duct main body having a plurality of ducts corresponding to different areas; and the adjusting air plate is arranged in the air channel and provided with at least one long hole, and the long hole is used for allowing air to pass through.
Description
Technical Field
The application relates to the railway vehicle technology, in particular to an air supply system and a multi-layer railway vehicle.
Background
An air supply system of an air conditioner is an important part for ensuring the comfort in a vehicle. For a multi-layer vehicle, the multi-layer vehicle generally has an upper layer area, a middle layer area and a lower layer area, so that the layout of an air supply system of the multi-layer vehicle is more complicated compared with that of a single-layer vehicle, and the air volume matching is the problem to be mainly overcome.
In the related art, an electric damper device is generally provided in an air supply system to match air volume. Specifically, the electric damper device includes: servo motor, link mechanism and air door, servo motor can drive the air door through link mechanism and rotate at certain angle to the different switching degree of control air door, and then the proportion of adjustment amount of wind distribution. However, the structure of the electric air door device is complex, the probability of failure is high, and the production cost and the maintenance cost of the multi-layer vehicle are increased.
Disclosure of Invention
The embodiment of the application provides an air supply system and a multi-layer railway vehicle, which are used for solving the problems that in the related art, the production cost and the maintenance cost of the multi-layer vehicle are increased due to the complex structure and high failure rate of an electric air door device.
An embodiment of the first aspect of the present application provides an air supply system for a multi-deck rail vehicle, including:
an air conditioning unit;
a duct main body having a plurality of ducts corresponding to different areas;
and the adjusting air plate is arranged in the air channel and provided with at least one long hole, and the long hole is used for allowing air to pass through.
In one possible implementation, the adjusting damper has a plate-shaped main body, a partial region of which is provided with an air inlet, and a partial region of which is provided with a plurality of elongated holes.
In one possible implementation, the plurality of long holes are arranged in parallel.
In one possible implementation, the plurality of long holes are uniformly distributed.
In one possible implementation manner, the air duct main body is provided with an upper air duct, a middle air duct and a lower air duct; at least part of the upper air duct, the middle air duct and the lower air duct is provided with the air adjusting plate.
In one possible implementation manner, the upper air duct, the middle air duct, and the lower air duct have a guest room air outlet, and the guest room air outlet has a top air outlet and a window air outlet.
In one possible implementation manner, the top air outlet is a runway-type air outlet.
In one possible implementation manner, at least one partition plate is disposed at the top air outlet, and the partition plate extends along a preset direction and is used for guiding the gas to flow along the preset direction.
In one possible implementation manner, the window air outlet includes a plurality of uniformly distributed round holes.
In one possible implementation manner, the number of the air conditioning units is two, and the two air conditioning units are respectively used for independently supplying air.
In one possible implementation manner, the upper air duct, the middle air duct and the lower air duct of the air duct main body are respectively provided with a static pressure cavity, a guide plate is arranged in the static pressure cavity, and the guide plate is used for guiding air in the static pressure cavity into the passenger room.
An embodiment of a second aspect of the present application provides a multi-deck rail vehicle, including: a vehicle body and an air supply system as described in any one of the preceding.
The embodiment of the application provides an air supply system and multilayer rail vehicle, through at least some wind channel department sets up the regulation aerofoil that has the slot hole in upper air duct, middle level wind channel and lower floor's wind channel, the slot hole can pass through for the gas, and this just does benefit to and adjusts the amount of wind that passes through from regulation aerofoil through slot hole quantity and size etc. of adjusting the aerofoil to the different regional amount of wind demands of adaptation. The adjusting air plate in the embodiment has the advantages of simple structure, low probability of mechanical failure, avoidance of electrical failure, saving of control logic for controlling the servo motor, contribution to saving of production cost and maintenance cost, and contribution to meeting of air volume requirements of different areas.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic view of a related art electric damper device;
fig. 2 is a schematic structural diagram of a multi-deck rail vehicle according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a multi-deck rail vehicle damper according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an air outlet (upper duct) of a passenger compartment of a multi-deck rail vehicle according to an embodiment of the present disclosure;
fig. 5 is a schematic structural view of an air outlet (middle and lower air ducts) of a passenger compartment of a multi-deck railway vehicle according to an embodiment of the present disclosure;
fig. 6 is a schematic structural view of a multi-layer air outlet of a railway vehicle according to an embodiment of the present disclosure;
fig. 7 is a schematic structural view of a multi-layer rail vehicle window outlet according to an embodiment of the present disclosure;
FIG. 8 is a schematic structural diagram of an upper air duct of a multi-deck rail vehicle according to an embodiment of the present disclosure;
FIG. 9 is a schematic structural diagram of a lower air duct in a multi-deck rail vehicle according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a multi-layer rail vehicle static pressure chamber and a baffle provided in an embodiment of the present application.
Description of reference numerals:
1-an air conditioning unit;
21-upper air duct; 22-middle layer air duct; 23-lower air duct; 24-a transition duct; 25-a top air outlet; 25 a-a separator; 26-window air outlet; 26 a-a circular hole; 27-main line; 28-branch pipe line; 29-a hydrostatic chamber;
3-adjusting the air plate; 31-a plate-like body; 32-air passing holes; 33-long holes;
and 5, vehicle body.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the related art, in order to match the air volume, an electric damper device is generally provided in the air supply system, as shown in fig. 1. Specifically, the electric damper device includes: servo motor 02, link mechanism 03 and air door 01, servo motor 02 can drive air door 01 through link mechanism 03 and rotate at certain angle to the different opening and closing degree of control air door 01, and then the proportion of adjustment amount of wind distribution. In FIG. 1, both side chamber dampers are closed such that the side chamber outlet 05 is closed; the middle chamber damper opens such that the middle chamber outlet 04 is open. The different air volume distribution demands can be adapted by adjusting the opening angle of the side cavity air door.
However, the structure of the electric damper device is complicated, resulting in a high cost of the multi-deck vehicle; moreover, the electric air door device is easy to have mechanical failure and electrical failure, and the maintenance cost of the multi-layer vehicle is increased.
In order to overcome the above problems, the present embodiment provides an air supply system and a multi-layer rail vehicle, wherein at least some air channels in the upper air channel, the middle air channel and the lower air channel are provided with air adjusting plates having long holes, and the long holes can allow air to pass through, so that the amount of air passing through the air adjusting plates can be adjusted by adjusting the number, size and the like of the long holes of the air adjusting plates, and the air supply system and the multi-layer rail vehicle are adapted to air volume requirements of different areas. The adjusting air plate in the embodiment has the advantages of simple structure, low probability of mechanical failure, avoidance of electrical failure, saving of control logic for controlling the servo motor, contribution to saving of production cost and maintenance cost, and contribution to meeting of air volume requirements of different areas.
The structure of the air supply system and the multi-deck rail vehicle according to the present embodiment will be described below by way of example with reference to the accompanying drawings.
As shown in fig. 2, the present embodiment provides a multi-deck rail vehicle, which includes a vehicle body 5 and an air supply system. The air blowing system is mounted to the vehicle body 5. The vehicle body 5 has three regions of an upper layer, a middle layer and a lower layer along the vertical direction, that is, the height direction of the vehicle body 5. The vehicle body 5 has two end regions, an upper layer region and a lower layer region between the two end regions, the end regions are single-layer regions, and the air conditioning unit 1 is arranged at the top ends of the end regions.
Wherein, air supply system includes: air conditioning unit 1, wind channel main part, regulation aerofoil 3. The air conditioning unit 1 is mounted on the top end of the end region of the vehicle body 5. The air duct main body is used for communicating the air conditioning unit 1 with a passenger room and guiding air output by the air conditioning unit 1 into the passenger room. Because the vehicle body 5 is provided with an upper layer, a middle layer and a lower layer, correspondingly, the air duct main body is provided with a plurality of air ducts which are respectively an upper layer air duct 21, a middle layer air duct 22 and a lower layer air duct 23.
As shown in fig. 3, an adjusting damper 3 may be disposed in the air duct, and the adjusting damper 3 may be used to adjust the passing air volume. The adjusting air plate 3 can be arranged at the inlet of the air duct, and of course, the adjusting air plate 3 can also be arranged at other positions of the air duct as long as the purpose of adjusting the air volume can be achieved.
At least part of the upper air duct 21, the middle air duct 22 and the lower air duct 23 is provided with an adjusting air plate 3. That is, the upper layer air duct 21, the middle layer air duct 22 and the lower layer air duct 23 are respectively provided with the adjusting air plates 3; or, the adjusting air plate 3 is arranged in part of the upper air duct 21, the middle air duct 22 and the lower air duct 23. For example, the upper duct 21 and the middle duct 22 are respectively provided with the damper 3. For example, the upper duct 21 and the lower duct 23 are provided with the damper 3, respectively.
The register flap 3 has at least one elongated hole 33, the elongated hole 33 being used for the passage of gas. The number, width, etc. of the long holes 33 can be set according to the air volume requirement of the corresponding area.
When the required air volume of the area corresponding to the air channel where the adjusting air plate 3 is located is larger, under the condition that the width of the long holes 33 is not changed, the air volume of the adjusting air plate 3 can be increased by increasing the number of the long holes 33; or the width of the long hole 33 is increased to increase the air quantity at the adjusting air plate 3.
When the required air volume of the area corresponding to the air channel where the adjusting air plate 3 is located is small, under the condition that the width of the long holes 33 is not changed, the air volume of the adjusting air plate 3 can be reduced by reducing the number of the long holes 33; or the width of the long hole 33 is reduced to reduce the air quantity at the adjusting air plate 3.
In addition, when the damper 3 is provided with a plurality of long holes 33, the plurality of long holes 33 may be the same or different in size. For example, the length of some of the long holes 33 is smaller than that of the other part of the long holes 33; for another example, a part of the long hole 33 is smaller in width than the other part.
In this embodiment, the number and size of the long holes 33 of the adjusting air plate 3 are not particularly limited, and may be set according to actual needs. During specific implementation, the air volume requirements of each area are determined according to the distribution of the fixed staff, the vehicle space and the like, so that the comfort of each area meets the design requirements; and parameters such as the number and the size of the long holes 33 of the corresponding adjusting air plates 3 are set according to the air quantity requirement, so that the air quantity of each area can reach a theoretical value.
In the multi-layer railway vehicle provided by the embodiment, the air adjusting plates 3 with the long holes 33 are arranged at least part of the upper air duct 21, the middle air duct 22 and the lower air duct 23, and the long holes 33 can allow air to pass through, so that the quantity of air passing through the air adjusting plates 3 can be adjusted by adjusting the number, the size and the like of the long holes 33 of the air adjusting plates 3, and the air quantity requirements of different areas can be adapted. The adjusting air plate 3 in the embodiment has a simple structure, has low probability of mechanical failure, avoids electrical failure, saves control logic for controlling a servo motor, is favorable for saving production cost and maintenance cost, and is favorable for meeting air volume requirements of different areas.
In one of the possible implementations, the adjusting damper 3 has a plate-shaped body 31, the plate-shaped body 31 being connected to a side wall of the air duct. The plate-shaped body 31 may be connected to the side wall of the air duct by a common connection means such as screwing, welding, or bonding.
The plate-shaped body 31 is provided with an air passing opening 32 in a partial region thereof, and the plate-shaped body 31 is provided with a plurality of elongated holes 33 in a partial region thereof. The position of the air duct for installing and adjusting the air plate 3 is an installation position, and the shape of the plate-shaped main body 31 can be matched with the shape of the air duct installation position. For example, when the shape of the mounting position is a polygon, the plate-like body 31 is also a polygon.
Alternatively, a plurality of long holes 33 are provided in parallel. The plurality of long holes 33 are distributed in parallel and at intervals along the length direction of the long holes, so that the uniformity of the flow field of the whole vehicle is facilitated.
Optionally, a plurality of long holes 33 are uniformly distributed to facilitate uniformity of the flow field of the whole vehicle. For example, the intervals between the plurality of long holes 33 may be equal.
In one possible implementation manner, as shown in fig. 4, the upper air duct 21, the middle air duct 22 and the lower air duct 23 respectively have a passenger compartment air outlet, and the passenger compartment air outlet has a top air outlet 25 and a window air outlet 26. Wherein, 80% of the air supply is sent out through the top air outlet 25, 20% of the air supply is sent out through the window air outlet 26, and the air outlet is beneficial to the uniformity of the whole vehicle flow field.
As shown in fig. 4 and 5, each air duct has a main pipeline 27, a static pressure chamber 29, a branch pipeline 28, a top air outlet 25 and a window air outlet 26; wherein, the main pipeline 27 supplies air for the window air outlet 26 through the branch pipeline 28; the main conduit 27 supplies air to the top air outlet 25 through the static pressure chamber 29.
Optionally, the top outlet 25 is a racetrack outlet. For example, as shown in fig. 6, at least one partition 25a is disposed at the top air outlet 25, and the partition 25a extends along a predetermined direction to guide the air to flow along the predetermined direction.
The top air outlet 25 is provided with a plurality of partition plates 25a extending along the length direction of the vehicle body 5, and a channel is formed between adjacent partition plates 25a and used for guiding the air to flow. Illustratively, a plurality of partition plates 25a are arranged at the top air outlet 25, so that a plurality of channels are formed at the top air outlet 25, and the uniformity of the flow field of the whole vehicle is facilitated.
In this example, through setting up the top air outlet to runway type air outlet, do benefit to the connection reliability who ensures the baffle, reduce the deformation of baffle, and make inner structure be difficult for exposing, do benefit to top air outlet's wholeness and aesthetic property.
Optionally, as shown in fig. 7, the window air outlet 26 includes a plurality of uniformly distributed circular holes 26 a. Specifically, the window air outlet 26 includes a plurality of window sub air outlets uniformly distributed, and the window sub air outlets are circular holes 26 a. The plurality of circular holes 26a may be arranged in a matrix. The window air outlet 26 can be arranged on the upper side of the window; by taking the longitudinal direction of the vehicle body 5 as a row, a plurality of rows of round holes 26a can be arranged on the upper side surface, and the distances between the round holes 26a in every two adjacent rows are equal; the spacing between the circular holes 26a in the same column may be equal.
In one possible implementation manner, there are two air conditioning units 1, and the two air conditioning units 1 are used for independently supplying air respectively. Thus, when one air conditioning unit 1 breaks down, the other air conditioning unit 1 can work normally, so that comfort in a passenger room is ensured.
Here, the lateral direction of the vehicle body 5 is the left-right direction. As shown in fig. 2 and 8, the ventilation ducts corresponding to the upper area, that is, the upper layer ventilation ducts, are also provided on the left and right sides of the vehicle body 5, respectively, wherein the upper layer ventilation duct on the left side is connected to one of the air conditioning units 1, and the upper layer ventilation duct on the right side is connected to the other air conditioning unit 1. As shown in fig. 2 and 9, at least two ventilation ducts corresponding to the middle layer are distributed in the end area of the vehicle body 5, the ventilation ducts are respectively located on the left and right sides, and the ventilation ducts located in the middle layer at the same end are connected to the same air conditioning unit 1. As shown in fig. 2 and 9, the ventilation ducts corresponding to the lower area, that is, the lower ventilation ducts, are also respectively disposed on the left and right sides of the vehicle body 5, wherein the left lower ventilation duct is connected to one of the air conditioning units 1 through the transition duct 24, and the right lower ventilation duct is connected to the other air conditioning unit 1 through the transition duct 24.
The two air conditioning units 1 are respectively arranged in the two end regions. As shown in fig. 2, 8 and 9, the two air conditioning units 1 are respectively an air conditioning unit a-END located at the END of the middle layer a and an air conditioning unit B-END located at the END of the middle layer B; the air conditioning unit A-END supplies air to the areas below the middle layer A END, the END A right side electrical cabinet, the upper layer left side, the lower layer right side and the A END stair; and the air conditioning unit B-END supplies air for the B END of the middle layer, the electrical cabinets on two sides of the B END, the right side of the upper layer and the left side of the lower layer.
In one possible implementation manner, as shown in fig. 9, the upper air duct 21, the middle air duct 22, and the lower air duct 23 of the air duct main body respectively have a static pressure cavity 29, as shown in fig. 10, a baffle 4 is disposed in the static pressure cavity 29, and the baffle 4 is used for guiding air in the static pressure cavity 29 into the passenger compartment to adjust uniformity of air volume of each layer. Wherein, the guide plate 4 is closer to the air outlet than the adjusting air plate 3. The static pressure cavity 29 is provided with an air passing window, and a guide plate 4 is arranged at the air passing window; the shape of the deflector 4 is adapted to the shape of the air passing window.
In some examples, the opening angle of each baffle 4 can be determined according to the air volume requirement of each area, that is, according to the distribution condition of the air volume, so that the baffles 4 are installed according to the determined opening angle.
In each of the above examples, the basic requirements for designing the ventilation duct forming the duct main body are to reduce the size of the duct as much as possible while maintaining the air volume, and to make the structure simple and to reduce the resistance.
The resistance of the ventilation duct includes frictional resistance (on-way resistance) and local resistance. The frictional resistance is the resistance generated by the viscosity of air and the friction between the air and the pipe wall, and is generally related to the section area, the perimeter, the air flow rate, the air duct length and the frictional resistance coefficient of the air duct.
The ventilation duct should be prevented from suddenly expanding and contracting as much as possible so as not to generate eddy currents and increase local resistance. When air flows through the pipe members of the ventilation duct, such as elbows, tees, diffusers, etc., and other equipment, energy loss is caused by both splitting and merging of the air flow due to changes in flow direction and velocity, and such loss occurring at local sites is called local drag, which is a large proportion of the ventilation system. In the design, a smooth flow guiding mode is adopted as much as possible, so that the local resistance of the air duct is reduced.
The present embodiment further provides an air supply system, and the specific structure, function and implementation process of the air supply system may be the same as or similar to those of the foregoing embodiments, and the details of this embodiment are not repeated herein.
In addition, the air supply system of the embodiment is not only suitable for multi-layer rail trains, but also suitable for single-layer trains, and the specific implementation manner of the air supply system can be similar to that of the foregoing embodiment.
In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "length," "width," "height," "top," "bottom," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus are not to be construed as limiting the present application.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. An air supply system for a multi-deck rail vehicle, comprising:
an air conditioning unit;
a duct main body having a plurality of ducts corresponding to different areas;
and the adjusting air plate is arranged in the air channel and provided with at least one long hole, and the long hole is used for allowing air to pass through.
2. The air supply system according to claim 1, wherein the damper has a plate-like body, a partial region of the plate-like body is provided with an air inlet, and a partial region of the plate-like body is provided with a plurality of elongated holes.
3. The air supply system according to claim 2, wherein the plurality of long holes are arranged in parallel; and/or the plurality of long holes are uniformly distributed.
4. The air supply system according to claim 1, wherein the air duct main body has an upper air duct, a middle air duct, and a lower air duct; at least part of the upper air duct, the middle air duct and the lower air duct is provided with the air adjusting plate.
5. The air supply system of claim 4, wherein the upper layer air duct, the middle layer air duct and the lower layer air duct each have a passenger compartment air outlet, and the passenger compartment air outlet has a top air outlet and a window air outlet.
6. The air supply system of claim 5, wherein the top outlet is a racetrack outlet.
7. The air supply system of claim 5, wherein at least one baffle is disposed at the top air outlet, the baffle extending in a predetermined direction for directing the air flow in the predetermined direction.
8. The air supply system of claim 5, wherein the window outlet includes a plurality of evenly distributed circular holes.
9. The air supply system according to any one of claims 1 to 7, wherein the number of the air conditioning units is two, and the two air conditioning units are respectively used for independently supplying air; and/or the presence of a gas in the gas,
the upper layer air duct, the middle layer air duct and the lower layer air duct of the air duct main body are respectively provided with a static pressure cavity, a guide plate is arranged in the static pressure cavity, and the guide plate is used for guiding air in the static pressure cavity into the passenger room.
10. A multi-deck rail vehicle, comprising: a vehicle body and an air supply system as claimed in any one of claims 1 to 9.
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| CN202110267672.9A CN112849181A (en) | 2021-03-12 | 2021-03-12 | Air supply system and multi-layer railway vehicle |
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| CN202378885U (en) * | 2011-12-09 | 2012-08-15 | 南车青岛四方机车车辆股份有限公司 | Air conditioning air duct system for intercity motor train unit |
| CN202358113U (en) * | 2011-12-13 | 2012-08-01 | 南车株洲电力机车有限公司 | Air supply uniformity adjusting system for lower static pressure type air channel |
| CN202764657U (en) * | 2012-08-31 | 2013-03-06 | 南车株洲电力机车有限公司 | Air flue distribution box applicable to a plurality of air distribution ratios |
| CN204726432U (en) * | 2015-04-30 | 2015-10-28 | 浙江双双制冷设备有限公司 | A kind of air channel with dividing plate |
| CN205009921U (en) * | 2015-08-21 | 2016-02-03 | 广州电力机车有限公司 | Automobile -used wind channel structure |
| CN105946884A (en) * | 2016-06-27 | 2016-09-21 | 中车唐山机车车辆有限公司 | Air feeding system for vehicle |
| US20180093595A1 (en) * | 2016-10-05 | 2018-04-05 | Hyundai Motor Company | Ventilation Seat for Vehicle |
| CN107415970A (en) * | 2017-07-31 | 2017-12-01 | 中车南京浦镇车辆有限公司 | Railway Double Deck Passenger Cars supply air system |
| WO2020045624A1 (en) * | 2018-08-31 | 2020-03-05 | 川崎重工業株式会社 | Air-conditioning duct for railway vehicles |
| CN210191471U (en) * | 2019-06-25 | 2020-03-27 | 中车青岛四方机车车辆股份有限公司 | Air conditioning system with uniform air outlet |
| CN110450803A (en) * | 2019-07-31 | 2019-11-15 | 中车青岛四方机车车辆股份有限公司 | Two-layer vehicle temperature-adjusting device, rail vehicle and temperature control method |
| CN110723157A (en) * | 2019-09-23 | 2020-01-24 | 中车南京浦镇车辆有限公司 | Subway vehicle composite air supply system |
| CN111361583A (en) * | 2020-04-09 | 2020-07-03 | 中车株洲电力机车有限公司 | Air conditioner air duct for double-layer motor train unit |
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