CN111361583A - Air conditioner air duct for double-layer motor train unit - Google Patents
Air conditioner air duct for double-layer motor train unit Download PDFInfo
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- CN111361583A CN111361583A CN202010272154.1A CN202010272154A CN111361583A CN 111361583 A CN111361583 A CN 111361583A CN 202010272154 A CN202010272154 A CN 202010272154A CN 111361583 A CN111361583 A CN 111361583A
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- duct
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- air duct
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- motor train
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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
- B61D27/0009—Means for controlling or equalizing air pressure shocks in trains, e.g. when passing or crossing in tunnels
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- Air-Conditioning For Vehicles (AREA)
- Duct Arrangements (AREA)
Abstract
The invention discloses an air conditioning duct for a double-layer motor train unit, which comprises an upper duct arranged in an upper passenger room and a lower duct arranged in a lower passenger room, wherein the upper duct comprises an upper duct (1) and a lower duct (10), the lower duct comprises an upper duct (11) and a lower duct (12), the upper duct and the lower duct are respectively connected with an air conditioning unit through a distribution box (2), air outlets are uniformly distributed on the upper duct (10), the lower duct (11) and the lower duct (12), and the calibers of the air outlets are gradually reduced from the air inlet of the duct to the air inlet far away from the air duct. The invention can adjust the temperature of the upper and lower passenger rooms, improve the uniformity of the airflow organization of the passenger room, reduce the noise in the passenger room and integrally improve the riding comfort of passengers in the passenger room.
Description
Technical Field
The invention relates to an air conditioning duct for a double-layer motor train unit.
Background
The air-conditioning air duct is used as a main part of the double-layer motor train unit, the riding comfort of passengers in upper and lower passenger rooms is influenced, and the air supply uniformity and the noise of the air-conditioning air duct are related to the quality and the performance of the whole motor train unit.
Because the double-layer motor train unit has a special structure, the passenger room has an upper-layer structure and a lower-layer structure, parts are crowded, so that the interference in the air-conditioning air duct is more, and the design difficulty of the air-conditioning air duct is very high. How to rationally design air conditioner wind channel structure to guarantee under limited space, can satisfy air conditioner wind channel air supply homogeneity, can reduce the size of air conditioning unit and wind channel aerodynamic noise again, be a difficult problem before research and development designer.
Disclosure of Invention
The invention aims to solve the technical problem of providing an air-conditioning duct for a double-layer motor train unit, which can ensure the temperature uniformity of a passenger room, aiming at the defect of poor air supply uniformity of the air-conditioning duct of the existing double-layer motor train unit.
In order to solve the technical problems, the air conditioning duct for the double-layer motor train unit comprises an upper air duct installed in an upper passenger room and a lower air duct installed in a lower passenger room, wherein the upper air duct comprises an upper air duct and an upper lower air duct, the lower air duct comprises a lower upper air duct and a lower air duct, the upper air duct and the lower air duct are respectively connected with an air conditioning unit through distribution boxes, air outlet holes are uniformly distributed in the upper air duct, the lower air duct and the lower air duct, and the calibers of the air outlet holes are gradually reduced from the air inlet of the air duct to the position far away from the air inlet of the air duct.
In addition, the applicant of the invention discovers that at the air inlet of the air channel, the air flowing forwards at high speed under the action of dynamic pressure causes less air to flow out of the air outlet at the air inlet of the air channel, and the caliber of the air outlet at the air inlet of the air channel is designed to be larger than that of the air outlet far away from the air inlet of the air channel, so that the air flow of each air outlet of the air channel is consistent, the temperature in the passenger room is ensured to be more uniform, and the riding comfort of passengers in the passenger room is further improved.
Preferably, the air conditioning duct for the double-layer motor train unit further comprises a middle air duct for supplying air to the aisle of the motor train unit and a door area air duct for supplying air to the vicinity of the door area, so as to ensure that air supply to all parts of the motor train unit is uniform and improve riding comfort of passengers, and the upper air duct, the lower air duct, the middle air duct and the door area air duct are respectively connected with the distribution box, so as to distribute air flow sent out by the air conditioning unit to all air ducts through the distribution box.
In order to distribute the current to each air duct of the motor train unit through the distribution box, the distribution box is provided with an air supply outlet and a plurality of air outlets connected with air inlets of the air ducts.
Distributing the air flow of an air supply outlet of the distribution box based on the air volume requirements of an upper passenger room, a lower passenger room, a middle layer and a door area, wherein a plurality of partition plates are vertically arranged below the air supply outlet, and the inner cavity of the distribution box is divided into at least three sections by the partition plates; the distribution box is complex in structure, vortex noise is easily generated due to vortex in the distribution box, a guide plate is arranged in each section, expansion plates are arranged on two sides or one side of each guide plate, a cover plate is arranged at the top of each section, a gas flow channel with gradually expanded caliber is formed by the guide plate, the expansion plates, the cover plate and the partition plate in each section in a surrounding manner, and a non-gas flow channel area in each section is provided with a silencing cavity filled with silencing materials, so that gas flow is smoother, and the vortex noise is reduced; each gas flow passage is respectively communicated with a plurality of air outlets on the distribution box, and meanwhile, an air valve is arranged in an air conditioning unit on the upper part of the distribution box and used for adjusting the air volume in the upper and lower passenger rooms, so that the temperature of the upper and lower passenger rooms can be adjusted.
For further having reduced air conditioning unit and having transmitted into noise and air current noise, the lateral wall board in amortization chamber with the guide plate all adopts the microperforated panel structure, just the leeward side subsides of guide plate inhale the sound cotton.
The guide plate is preferably an arc-shaped guide plate so as to realize the guide of each gas channel from the air supply outlet to the air outlet from top to bottom.
In order to facilitate installation and maintenance, the upper-layer upper air duct, the upper-layer lower air duct, the lower-layer upper air duct and the lower-layer lower air duct are formed by connecting two sections of air ducts through transition air ducts.
In order to strengthen the structural strength of the air duct, reinforcing ribs which are longitudinally arranged along the vehicle body are arranged inside the upper-layer upper air duct, and through holes for ensuring the circulation of air inside the air duct are formed in the reinforcing ribs.
In order to save cost, the upper-layer upper air duct is a combined air duct, a top cover of the motor train unit body serves as an air duct top plate, a middle top plate arranged in the motor train unit serves as an air duct bottom plate, and sealing plates at two ends enclose an air duct sealing cavity. In order to avoid excessive energy loss, the bottom surface of the air duct top plate is pasted with heat preservation cotton.
The air duct bottom plate is of a pore plate structure, so that on one hand, the uniformity of air supply of a passenger room is ensured, and on the other hand, the attractiveness of the built-in design is considered.
Compared with the prior art, the air conditioning duct for the double-layer motor train unit has the following beneficial effects:
1. the air conditioning duct of the invention respectively supplies air for the upper and lower passenger rooms, and can adjust the air quantity of the upper and lower layers through the air valve, thereby controlling the temperature of the upper and lower passenger rooms, ensuring the temperature of the upper and lower passenger rooms to be uniform, and improving the riding comfort of passengers.
2. The distribution box of the air-conditioning air duct has a complex structure, and distributes the air volume to the upper-layer guest room, the lower-layer guest room and the middle-layer guest room through the partition plates and the guide plates; meanwhile, the baffle plate and the guide plate are dense micro-perforated plates, and sound-absorbing cotton is attached to the back of the baffle plate to reduce noise of the air conditioner and the air duct.
3. The sizes of the air outlet holes of each layer of the air duct have a certain change rule, and the diameters (air outlet areas) of the air outlet holes are sequentially reduced from the air inlet of the air duct to the position far away from the air inlet of the air duct, so that the air supply uniformity of the air duct is favorably ensured.
In a word, the air conditioning duct provided by the invention can adjust the temperature of the upper and lower passenger rooms, improve the uniformity of airflow organization of the passenger rooms, reduce the noise in the passenger rooms and integrally improve the riding comfort of passengers in the passenger rooms.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic perspective view of an embodiment of an air conditioning duct of a double-decker motor train unit according to the invention;
FIG. 2 is a schematic view showing the variation of the sizes of the air outlets of the air ducts of the respective layers according to the present invention;
FIG. 3 is a schematic perspective view of the distributor box of the present invention;
FIG. 4 is a top view of the dispenser box of the present invention with the top cover removed.
In the figure: 1-upper-layer upper air duct, 2-distribution box, 3-first upper air supply duct, 4-second upper air supply duct, 5-air supply outlet, 6-air return inlet, 7-middle air supply duct, 8-middle-layer air duct, 9-lower air supply duct, 10-upper-layer lower air duct, 11-lower-layer upper air duct, 12-lower-layer lower air duct, 13-first door zone air duct, 14-second door zone air duct, 111-a first air outlet, 112-a second air outlet, 113-a third air outlet, 114-a transition air duct, 201-a clapboard, 202-a guide plate, 203-a first air outlet, 204-a second air outlet, 205-a third air outlet, 206-a fourth air outlet, 207-a mounting seat, 208-a diffusion plate, 209-a cover plate and 211-a silencing cavity.
Detailed Description
The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.
For convenience of description, the relative positional relationship of the components, such as: the descriptions of the upper, lower, left, right, etc. are described with reference to the layout directions of the drawings in the specification, and do not limit the structure of the present patent.
As shown in fig. 1 to 4, an embodiment of the air conditioning duct for the double-layer motor train unit of the invention comprises an upper air duct installed in an upper passenger compartment, a lower air duct installed in a lower passenger compartment, a middle air duct 8 installed in an aisle area, and a door area air duct installed near a door.
The upper air duct comprises an upper air duct 1 and an upper lower air duct 10, the lower air duct comprises a lower upper air duct 11 and a lower air duct 12, the door area air duct comprises a first door area air duct 13 and a second door area air duct 14 which are arranged on two sides of the door frame, and the upper air duct 1, the upper lower air duct 10, the middle air duct 8, the lower air duct 11, the lower air duct 12, the first door area air duct 13 and the second door area air duct 14 are respectively connected with an air supply opening of the air conditioning unit through a distribution box 2.
The upper-layer upper air duct 1 is a combined air duct, an arc-shaped top cover of a motor train unit body is used as an air duct top plate, a middle top plate arranged in the motor train unit is used as an air duct bottom plate, and sealing plates at two ends enclose an air duct sealing cavity; in addition, the lower part of the air duct top plate is pasted with high-performance heat preservation cotton so as to avoid excessive energy loss.
The upper layer upper air duct 1 is internally provided with longitudinal reinforcing ribs of the vehicle body to increase the structural strength, and the reinforcing ribs are provided with through holes to ensure the mutual circulation of air in the air duct. The through hole is preferably a kidney-shaped hole. In order to ensure the uniformity of air supply of the passenger room and also consider the aesthetic property of the built-in design, the air duct bottom plate is of a pore plate structure.
For the convenience of maintenance and overhaul, the upper-layer lower air duct 10, the lower-layer upper air duct 11 and the lower-layer lower air duct 12 are respectively composed of a left air duct and a right air duct, and are connected through a transition air duct 114.
The top of the distribution box 2 is provided with an air supply outlet 5, and the periphery of the distribution box is provided with a first air outlet 203, a second air outlet 204, a third air outlet 205 and a fourth air outlet 206. A plurality of partition plates 201 are vertically arranged below the air supply opening 5, and the inner cavity of the distribution box 2 is divided into three intervals by the partition plates 201, so that the air supply ratio of the upper layer air duct, the middle layer air duct and the lower layer air duct is distributed by the partition plates 201. The bottom of each interval is provided with a guide plate 202, two sides or one side of the guide plate 202 are provided with pressure-expanding plates 208, so that airflow in each interval flows more smoothly, eddy noise is reduced, the top of each interval is provided with a cover plate 209, the guide plate 202, the pressure-expanding plates 208, the cover plate 209 and the corresponding partition plate 201 in each interval jointly enclose to form a gas flow channel with gradually-expanded caliber, and each gas flow channel is respectively communicated with the first air outlet 203, the second air outlet 203, the third air outlet 204, the fourth air outlet 205 and the fourth air outlet 206 on the distribution box 2. In addition, the non-gas flow path region of each section in the distribution box 2 is configured as a sound-deadening chamber 211 filled with sound-deadening material, and the side wall of each sound-deadening chamber 211 is of a dense micro-porous plate structure to promote the absorption of air flow and air conditioning noise.
A first air outlet 203 and a second air outlet 204 of the distribution box 2 are connected with an upper-layer upper air duct 1 through a first upper air supply duct 3 and a second upper air supply duct 4 to supply air for the upper-layer upper air duct 1; the third air outlet 205 is connected with an upper-layer lower air duct 10, a lower-layer upper air duct 11, a lower-layer lower air duct 12, a first door-area air duct 13 and a second door-area air duct 14 through a lower air supply duct 9; the fourth air outlet 206 is connected to the middle air duct 8 through the middle air supply duct 7. The upper-layer upper air duct 1 and the upper-layer lower air duct 10 supply air for an upper-layer passenger room of the motor train unit; the lower-layer upper air duct 11 and the lower-layer lower air duct 12 supply air to a lower-layer passenger room of the motor train unit; the middle-layer air duct 8 supplies air to the aisle of the motor train unit; the first door zone air duct 13 and the second door zone air duct 14 supply air near the door zones.
When the air-conditioning unit is used, the air supply of the air-conditioning unit is distributed to the upper-layer air duct, the lower-layer air duct, the middle-layer air duct and the door-area air duct through the distribution box 2 and the air valves, the temperature of the upper-layer passenger room and the lower-layer passenger room of the double-layer motor train unit is adjusted, the temperature uniformity of the passenger rooms is ensured through the design of different air outlet hole calibers on the air ducts, meanwhile, a low-noise environment is provided for the passenger rooms through the noise reduction structures (the guide plate, the pressure expansion plate, the silencing cavity and the like) in the distribution box 2 and the air.
The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.
Claims (10)
1. The utility model provides a double-deck air conditioner wind channel for EMUs, is including installing the upper air duct of upper guest room and installing the lower floor's wind channel at lower floor's guest room, its characterized in that, the upper air duct includes wind channel (1) and wind channel (10) under upper strata on the upper air duct, the wind channel (12) are down including wind channel (11) and the lower floor on the lower floor in the lower floor, the air conditioning unit is connected through distribution box (2) respectively to wind channel (10) under the upper strata, wind channel (11) and the lower floor are down wind channel (12) on the equipartition exhaust vent, the bore of exhaust vent reduces from wind channel air inlet department to keeping away from wind channel air inlet department gradually.
2. The air conditioning duct for the double-layer motor train unit according to claim 1, further comprising a middle air duct (8) for supplying air at the aisle of the motor train unit and a door area air duct for supplying air near the door area, wherein the upper air duct (1), the middle air duct (8), the upper air duct (10), the lower air duct (11), the lower air duct (12) and the door area air duct are respectively connected with the distribution box.
3. The air conditioning duct for the double-layer motor train unit according to claim 1, wherein an air supply opening (5) and a plurality of air outlets are formed in the distribution box, a plurality of partition plates are vertically arranged below the air supply opening and divide an inner cavity of the distribution box into at least three sections, a guide plate (202) is arranged in each section, a pressure expansion plate (208) is arranged on two sides or one side of each guide plate, a cover plate (209) is arranged at the top of each section, a gas flow passage with gradually expanded caliber is formed by the guide plate, the pressure expansion plate, the cover plate and the partition plates in each section in a surrounding mode, each gas flow passage is respectively communicated with the plurality of air outlets in the distribution box, and a non-gas flow passage area in each section is provided with a silencing cavity (211) filled.
4. The air conditioning duct for the double-layer motor train unit according to claim 3, wherein the side wall plate of the silencing cavity and the guide plate are both of a micro-perforated plate structure, and a sound absorbing cotton is attached to the leeward side of the guide plate.
5. The air conditioning duct for the double-layer motor train unit according to claim 3, wherein the guide plate is an arc-shaped guide plate.
6. The air conditioning duct for the double-layer motor train unit according to claim 1, wherein the upper-layer upper duct (1), the upper-layer lower duct (10), the lower-layer upper duct (11) and the lower-layer lower duct (12) are formed by connecting two sections of ducts through a transition duct (114).
7. The air-conditioning duct for the double-layer motor train unit according to claim 1, wherein reinforcing ribs arranged longitudinally along the train body are arranged inside the upper air duct (1), and through holes for ensuring air circulation inside the air duct are formed in the reinforcing ribs.
8. The air-conditioning duct for the double-layer motor train unit according to claim 1, wherein the upper-layer upper duct (1) is a combined duct, and a top cover of the motor train unit body serves as a top plate of the duct, a middle top plate arranged in the motor train unit serves as a bottom plate of the duct, and sealing plates at two ends of the sealing plate enclose a sealed chamber of the duct.
9. The air-conditioning duct for the double-layer motor train unit according to claim 7, wherein heat insulation cotton is adhered to the bottom surface of the top plate of the duct.
10. The air conditioning duct for the double-layer motor train unit according to claim 7, wherein the duct bottom plate is of a pore plate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010272154.1A CN111361583B (en) | 2020-04-09 | 2020-04-09 | Air conditioner air duct for double-layer motor train unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010272154.1A CN111361583B (en) | 2020-04-09 | 2020-04-09 | Air conditioner air duct for double-layer motor train unit |
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| Publication Number | Publication Date |
|---|---|
| CN111361583A true CN111361583A (en) | 2020-07-03 |
| CN111361583B CN111361583B (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010272154.1A Active CN111361583B (en) | 2020-04-09 | 2020-04-09 | Air conditioner air duct for double-layer motor train unit |
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| CN (1) | CN111361583B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112849181A (en) * | 2021-03-12 | 2021-05-28 | 中车唐山机车车辆有限公司 | Air supply system and multi-layer railway vehicle |
| CN115512677A (en) * | 2022-08-16 | 2022-12-23 | 广州精益运输制冷设备有限公司 | Noise-reduction air distribution device for rail train air conditioner |
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| JP2001199330A (en) * | 2000-01-18 | 2001-07-24 | Hitachi Ltd | Rolling stock |
| CN206155458U (en) * | 2016-10-26 | 2017-05-10 | 中车株洲电力机车有限公司 | Double -deck rail vehicle air conditioning system |
| CN208665188U (en) * | 2018-07-17 | 2019-03-29 | 株洲九方制动设备有限公司 | Air passage distribution box, the double-deck ducting system and two-layer vehicle |
| CN110065508A (en) * | 2018-01-24 | 2019-07-30 | 中车唐山机车车辆有限公司 | A kind of double train compartment and train |
-
2020
- 2020-04-09 CN CN202010272154.1A patent/CN111361583B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001199330A (en) * | 2000-01-18 | 2001-07-24 | Hitachi Ltd | Rolling stock |
| CN206155458U (en) * | 2016-10-26 | 2017-05-10 | 中车株洲电力机车有限公司 | Double -deck rail vehicle air conditioning system |
| CN110065508A (en) * | 2018-01-24 | 2019-07-30 | 中车唐山机车车辆有限公司 | A kind of double train compartment and train |
| CN208665188U (en) * | 2018-07-17 | 2019-03-29 | 株洲九方制动设备有限公司 | Air passage distribution box, the double-deck ducting system and two-layer vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 浦镇车辆工厂等: "空调双层硬座车空气调节装置", 《铁道车辆》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112849181A (en) * | 2021-03-12 | 2021-05-28 | 中车唐山机车车辆有限公司 | Air supply system and multi-layer railway vehicle |
| CN115512677A (en) * | 2022-08-16 | 2022-12-23 | 广州精益运输制冷设备有限公司 | Noise-reduction air distribution device for rail train air conditioner |
| CN115512677B (en) * | 2022-08-16 | 2023-10-10 | 广州精益运输制冷设备有限公司 | Noise-reducing and wind-distributing device for air conditioner of rail train |
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| Publication number | Publication date |
|---|---|
| CN111361583B (en) | 2022-01-18 |
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