CN101850774B - Air conditioning duct system of high speed sleeper - Google Patents
Air conditioning duct system of high speed sleeper Download PDFInfo
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- CN101850774B CN101850774B CN2009101311651A CN200910131165A CN101850774B CN 101850774 B CN101850774 B CN 101850774B CN 2009101311651 A CN2009101311651 A CN 2009101311651A CN 200910131165 A CN200910131165 A CN 200910131165A CN 101850774 B CN101850774 B CN 101850774B
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Abstract
The invention relates to an air conditioning duct system of a high speed sleeper, which comprises an air conditioning unit hanged at the bottom of a sleeper body and a ventilation device, wherein the air conditioning unit is successively connected to a sleeper lower duct, a floor middle duct and a sidewall inner duct and outwards blows through wind outlets arranged in each passenger compartment; at least one wind return port is arranged in each passenger compartment and is connected with a return duct in the floor; and the ventilation device is connected with a fresh wind duct and an air exhausting duct. In the system, the sleeper lower duct, the floor middle duct and a duct on the sleeper form an annular blowing system, and blowing is simultaneously realized in different directions from three points. The system blows wind back from the bottom and has the advantages of uniform blowing and good airflow sequence. Fresh air and exhaust air enter the ventilation device through independent ducts, and then the fresh air enters the air conditioning unit and the exhaust air is discharged out of the sleeper so as to ensure the requirement of airtightness and slight pressure of the whole sleeper. In addition, the air conditioning unit, the ventilation device and most of ducts in the system are arranged below the floor and the sleeper so that the requirement for low center of gravity of the high speed sleeper can be met.
Description
Technical field
The present invention relates to a kind of air-conditioning duct system, specifically a kind of air-conditioning duct system that is installed on high speed railway first draft group sleeper belongs to the rolling stock equipment technical field.
Background technology
China is the country of first development in the world and utilization high speed sleeper-car EMUs, the high speed sleeper-car EMUs are compared with common night coach, be that speed or project organization all have bigger difference, therefore only at the suitable air conditioner system of the actual conditions development and design of bullet train, could guarantee to reach in the passenger vehicle desired air parameter and air quality, for the passenger provides comfortable traveling environment.
Present domestic train generally all is to adopt unitary air conditioner unit or split-type air conditioner unit, be installed on the roof end position, it as the patent No. 93207559.2 Chinese patent " the luxurious air-supply arrangement of passenger train air-conditioning ", exactly air-conditioning unit and air-supply arrangement are embedded in the top of railway carriage, supply air duct links to each other with the air-conditioning unit, this supply air system adopts top static pressure chamber wind pushing form, and does not have independently air return duct.This kind a/c system is unfavorable for the requirement that high speed train is lower to center of gravity, and ducting system gentle breeze is fast and temperature traverse aspect homogeneity is relatively poor, secondly, and owing to running at high speed of train, also higher to the air-tightness requirement, supporting with it new wind, useless air exhausting duct system also need emphasis to solve.
How according to the special construction of high speed sleeper, the ducting system of appropriate design, and realize the homogeneity of blowing preferably in the guest room, air-tightness is the key problem in technology that solves existing air-conditioned train problem.
Summary of the invention
Main purpose of the present invention is to solve above-mentioned key problem in technology, and a kind of requirement that can satisfy the high speed train low center of gravity is provided, and makes simultaneously to blow evenly the air conditioning duct system of high speed sleeper of uniformity of temperature profile in the sleeping berth parlor.
For achieving the above object, technical scheme of the present invention is:
A kind of air conditioning duct system of high speed sleeper comprises the air-conditioning unit and the air interchanger that are hung on the train body bottom; The air outlet of described air-conditioning unit is connected the air channel with air-supply under the car respectively with return air inlet and is connected the air channel connection with return air under the car, described car down air-supply connect the air channel be connected with return air under the car air channel pass hull bottom plate respectively be arranged at floor compartment in the air delivery duct be connected with air return duct in the floor, in the described floor air delivery duct be arranged on cabin side air delivery duct within the walls and be connected, both sides and top area at each parlor respectively are provided with an air outlet, bottom section at each parlor is provided with at least one return air inlet, and the return air inlet that air return duct passes in floor and the described parlor in the described floor is connected; Described air interchanger is connected with the fresh wind port that is positioned at car body headwall top by the fresh flue that is arranged in the floor, the new wind outlet of described air interchanger is connected with the air-conditioning unit by fresh flue under the car, described air interchanger also is connected with useless row's connection air channel under the car, air return duct is connected in useless air exhausting duct during the useless down row of this car connects the air channel and is arranged on floor compartment and the floor, be provided with useless exhaust outlet in the car internal sanitary accomodation, waste gas enters the useless air exhausting duct in the floor thus.
Air outlet in the parlor is separately positioned on bottom, parlor side wall and the top board junction of curtain and three positions, top of parlor door, the return air inlet that is arranged on the parlor bottom section is driveed at leg place, the shop in lower berth, be designed to integrative-structure with the shop leg, in addition, below vertical partition in interval parlor and corridor, a vent window is set.
Above-mentioned cabin side air delivery duct within the walls is made up of compound light air road and glass-felt plastic air channel two parts of being positioned between window, air delivery duct in the floor is connected with compound light air road between window, be connected with the glass-felt plastic air channel, the air outlet in the parlor all is connected with described glass-felt plastic air channel again.Wherein, the material in compound light air road is formed by five layers from outside to inside, be respectively aluminium foil, PE, hard film, PE, aluminium foil, interface position in compound light air road 16, form by three layers, be respectively: rubber, woollen goods fiber, rubber, car down air-supply connect under air channel, the car return air and connect the useless air exhausting duct that the useless down row of fresh flue, car connects in air channel, the floor under the fresh flue in air return duct, the floor, the car in air delivery duct, the floor in air channel, the floor and all adopt the aluminium sheet material.
Three air outlets in the described parlor comprise that at least one is manual Adjustable air port for electronic Adjustable air port and one, and the interior controller signals of described electronic Adjustable air port and parlor is connected.
Air-conditioning unit in this air-conditioning duct system is designed to two, is the two ends that diagonal line is arranged at car body bottom respectively, and two air-conditioning unit air outlets and return air inlet are connected respectively car under that return air is connected the air channel under the air-supply connection air channel and car.
Content to sum up, air conditioning duct system of high speed sleeper provided by the present invention, the supply air system of having formed a ring-type by air channel, car upper air duct in car lower air duct, the floor, and the side wall in parlor, window curtain bottom, last 3 whiles of parlor door blow from different directions, and at bottom return air, this supply air system air-supply evenly, make interior gentle breeze speed of parlor and temperature traverse all reach comparatively effect of uniform, can realize of the every requirement of high speed sleeper air current composition.New wind and useless row enter air interchanger by air channel independently, enter the air-conditioning unit then respectively and discharge outside the car, have guaranteed the air-tightness of car load and the requirement of pressure-fired.
This air-conditioning duct system is installed on air-conditioning unit, air interchanger and most of air channel under floor and the car body, has satisfied the requirement of high speed train to low center of gravity.
Various facilities are more in the sleep car, and the space is very limited, utilizes the shop leg in lower berth that return air inlet is set, and also can save limited space in the parlor.
Below vertical partition in interval parlor and corridor, an air port is set, can makes the return air in the corridor enter air return duct in the floor through the return air inlet on the shop leg in parlor, return air inlet need be set in addition in the corridor again by this air port.
Have one in three air outlets in the parlor at least and adopt electronic Adjustable air port and a manual regulation air port, like this, the passenger in parlor can be as required, oneself adjusts the air quantity in air port, designs hommization more.
Description of drawings
Fig. 1 structural representation of the present invention;
Air channel structural representation in Fig. 2 floor of the present invention;
The A-A cutaway view air-conditioning unit air passage portion of Fig. 3 Fig. 1;
The A-A cutaway view air interchanger air passage portion of Fig. 4 Fig. 1.
As shown in Figures 1 to 4, car body 1, air-conditioning unit 2, air interchanger 3, car air-supply down connects air channel 4, and return air connects air channel 5 under the car, and the air delivery duct 6 in the floor, and air return duct 7 in the floor, air outlet 8, air outlet 9, air outlet 10, return air inlet 11, new wind connects air channel 12 under the car, and the down useless row of car connects air channel 13, useless air exhausting duct 14 in the floor, shop leg 15, compound light air road 16, glass-felt plastic air channel 17, the fresh flue 18,19 in the floor, useless exhaust outlet 20, sanitary accomodation 21.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
As shown in Figures 1 to 4, described air conditioning duct system of high speed sleeper, comprise the air-conditioning unit 2 and the air interchanger 3 that are hung on train body 1 bottom, for refrigeration and the heating capacity that satisfies the compartment, every joint compartment all is equipped with two air-conditioning units 2, two air-conditioning units 2 are diagonal line to be hung at the two ends of bottom, every joint compartment, and 3 of air interchangers adopt one.Air-conditioning unit 2 is provided with air outlet and return air inlet (not shown), is provided with blower fan in the air interchanger 3, which is provided with the entrance and exit of new wind, useless row's entrance and exit (not shown).
Air channel in this ducting system is divided into three parts altogether, and the one, be arranged at the car lower air duct in the following equipment compartment of car body, the 2nd, be arranged at the air channel in the floor compartment, the 3rd, be arranged at car upside air channel within the walls.Wherein the air channel under the car comprises under the car that air-supply connects under air channel 4, the car return air and connects under air channel 5, the car new wind and connect that useless air draft connects road 13 under air channel 12, the car; The air channel that is arranged in the floor comprises air delivery duct 6, air return duct 7, useless air exhausting duct 14, fresh flue 18, because air interchanger 3 is far away apart from air-conditioning unit 2, if connecting air channel 12 by new wind under the car, the fresh air that comes out directly enters air-conditioning unit 2 from air interchanger 3, new wind connects air channel 12 and just needs long distance under the car so, taken space limited under the car, so the fresh air that comes out from air interchanger 3 enters the fresh flue 19 the floor once more, and then enter that new wind connects air channel 12 under the car; The air channel that is arranged in the side wall comprises compound light air road 16 and the glass-felt plastic air channel 17 that is positioned between window.
In order to alleviate the weight of vehicle body, satisfy the requirement of hot-short weight-saving, guarantee the intensity in air channel simultaneously again, the aluminium sheet material is all adopted with the air channel that is arranged in the floor in the air channel that is arranged under the car.
The air channel that is arranged at car top is unsuitable for using the aluminium sheet material, because of it is not easy to install, and is unfavorable for the wind speed reduction of speed in the air channel, so composite material and two kinds of materials of glass-felt plastic have been adopted in the air channel on car top.What be arranged at that compound light air road 16 between window adopts is composite material, it is formed by five layers from outside to inside: be respectively aluminium foil, PE, hard film, PE, aluminium foil, interface position in compound light air road 16 is formed by three layers, is respectively: rubber, woollen goods fiber, rubber.These compound light air road 16 smooth interior surfaces, heat-proof quality is good, connectivity is good, combustibility, smokiness, toxicity will meet standard-required, not only can guarantee heat insulation requirement, but also can satisfy the requirement of hot-short weight-saving, in addition, compound light air road 16 is easy to processing, also can reduce noise in the air channel.Because can't blow in the road junction on the compound light air road 16, so the outlet at compound air duct 16 is connected with glass-felt plastic air channel 17 again, extend to each air outlet in glass-felt plastic air channel 17, glass-felt plastic has intensity preferably, and weight is lighter, be easy to shape, glass-felt plastic air channel 17 is connected with air outlet 8,9,10.
Air-conditioning unit 2 in this air-conditioning duct system and air interchanger 3 and most of air channel all are installed under the floor and car body 1 time, have realized the requirement of high speed train low center of gravity.
The air outlet of air-conditioning unit 2 is connected air channel 4 respectively with the return air inlet (not shown) and is connected air channel 5 connections with return air under the car with air-supply under the car, car down air-supply connect air channel 4 be connected with return air under the car pass car body 1 in air channel 5 base plate respectively be arranged at floor compartment in air delivery duct 6 be connected with air return duct 7, in order to guarantee air output and return air amount, air delivery duct 6 in the floor and air return duct 7 respectively are set to two arranged side by side, air delivery duct 6 in the floor is connected with compound light air road 16 in being arranged on side wall between the compartment window, and compound light air road 16 is connected with glass-felt plastic air channel 17 in the side wall again.Two air-conditioning units 2 connect respectively separately car down air-supply connect air channel 4 and be connected air-supply connection air channel 45, two cars in air channel under with return air under the car and be connected 5 whiles of air channel with return air under the car and be connected with air return duct 7 with air delivery duct 6 in the floor.
Every joint sleeping carriage has 10 parlors, different directions at each parlor is provided with three air outlets 8,9,10 altogether, in parlor, blow simultaneously from different directions, air-supply evenly, make interior gentle breeze speed of parlor and temperature traverse can reach comparatively effect of uniform, can realize of the every requirement of high speed sleeper air current composition.This ducting system the is preferred position of three air outlets, the one, the air outlet 8, two of the bottom of curtain, the air outlet 9 of parlor side wall and top board junction, and the air outlet 10 of parlor header.The structure of air outlet 8,9,10 and material will be consistent with the structure and the material of wall with the door of position, as, the material of parlor door generally is an aluminum alloy, its doorframe adopts aluminium alloy extrusions, air outlet 10 is just opened on the aluminium alloy extrusions of doorframe, so the material of air outlet 10 is also just selected aluminum alloy, so not only be easy to processing, and it is very attractive in appearance from seeing in appearance, equally, open the air outlet 8 of curtain bottom and open the material of the air outlet 9 on side wall and color also consistent with the material and the color of on every side trim board.In addition, also all be provided with the air outlet (not shown) at the corridor and the channel board place in every joint compartment.
Have one to be manual Adjustable air port for electronic Adjustable air port and one in the air outlet 8,9,10 in the parlor, the air outlet 10 that preferably will be positioned on the parlor door is set to electronic Adjustable air port, its with the interior controller of parlor between be connected for signal.Electronic Adjustable air port can be controlled the size of opening in the air port and regulate air quantity, and the passenger can own as required manual regulation controller, thus the control air quantity, and the temperature between controlling packet makes the environment in the parlor more comfortable.The structure of electronic Adjustable air port can adopt of the prior art any, is described in detail no longer in addition here.In addition, the air outlet 8 of the bottom of curtain is set to manual Adjustable air port, the passenger is the air-out direction of this air outlet 8 of manual regulation as required.
Be provided with three air outlets 8,9,10 on the top of each parlor, bottom section at each parlor is provided with at least one return air inlet 11 in addition, because the air return duct in the present embodiment in the floor 7 is two, so correspondingly return air inlet 11 also is at least two, the return air inlet 11 that the air return duct 7 in the floor passes in floor and the parlor is connected.Various facilities are more in the sleep car, space in the parlor is very limited, so this ducting system is arranged on return air inlet 11 on the shop leg 15 in lower berth, be designed to the structure of integral type with shop leg 15, can save the limited space in the parlor like this, also do not influence the passenger and place luggage, in order to guarantee the return air amount, also can all have return air inlet 11 on the shop in each lower berth leg 15, leg 15 inside, shop are hollow, and inside is provided with protecting cover return air inlet 11 and is communicated with air return duct 7 in the floor.
Below vertical partition in interval parlor and corridor, a vent window (not shown) is set, grid is set on the vent window, return air in the corridor just enters parlor by this vent window, return air inlet 11 in the process parlor on the leg 15 of shop enters the air return duct 7 in the floor, return air inlet need be set in addition in the corridor again.
Top at car body 1 headwall is provided with the fresh wind port (not shown), in order to introduce the fresh air in the external environment, the top that fresh wind port is arranged on car body 1 is in order to guarantee the air quality of new wind, fresh wind port connects an air channel, this air channel is passed the floor and is connected with fresh flue 18 in the floor, pass the base plate of car body 1 again, enter air interchanger 3 at last, the base plate that the fresh air that enters air interchanger 3 from fresh wind port passes car body 1 once more enters the fresh flue 19 the floor, and then enter that new wind connects air channel 12 under the car, connecting air channel 12 by new wind under the car is connected with air-conditioning unit 2, fresh air is introduced in the air-conditioning unit 2, send into again in the parlor after mixing with return air in the air-conditioning unit 2, guarantee the freshness of air in the parlor.
The new wind of this ducting system and useless row all enter air interchanger 3 by air channel independently, enter air-conditioning unit 2 then respectively and discharge outside the car, have guaranteed the air-tightness of car load and the requirement of pressure-fired.In train was run at high speed, when running into meeting, process of passing through tunnel, the car external pressure changed greatly; if do not take the efficient pressure safety method, will cause that the pressure variation in the car is excessive, when pressure change rate surpasses 200Pa/s; cumulative stress changes when surpassing 1000Pa, can cause passenger's tinnitus.This air interchanger 3 adopts high-static pressure fan, maximum supply ventilating fan static pressure can reach 5.5kPa, can suppress the variation of car external pressure to the influence in the car by actv., what adopt simultaneously is that collection air inlet and exhaust are the blower fan of one, guaranteed that air inlet is identical with free air capacity, interior pressure can have been maintained a stable status.
Air on-cycle process was as follows when this air-conditioning duct system moved:
The fresh air of introducing from fresh wind port enters air interchanger 3 under the car through the fresh flue the floor 18, enter the fresh flue 19 in the floor again, connect air channel 12 by new wind under the car at last and enter two air-conditioning units 2 respectively, fresh air mixes with indoor return air in the air-conditioning unit 2 and after treatment, connect air channel 4 through air-supply under the car, send into air delivery duct 6 in the floor successively, compound light air road 16 between window, glass-felt plastic air channel 17, at last by three air outlets 8,9,10, in parlor, blow simultaneously, also blow in the corridor by the corridor air outlet simultaneously.Air in the parlor enters air return duct 7 in the floor by the return air inlet 11 on the leg 15 of shop again, enters respectively that return air connects air channel 5 under two cars again, returns two air-conditioning units 2 at last separately, and air-conditioning unit 2 freezes or heats circulation.Simultaneously, waste gas on the car in the sanitary accomodation 21 enters useless air exhausting duct 14 in the floor by useless exhaust outlet 20, and enter useless row's connection air channel 13 car under through useless air exhausting duct 14 in the floor, enter air interchanger 3 at last, be discharged from outside the car, simultaneously in the guest room also some air air return duct 7 from the floor enter that useless row connects air channel 13 car under, outside air interchanger 3 discharge cars.Final air-supply, return air, the air-exhausting function realized send form next time on the air-supply employing is this, air current composition is better in the parlor.
As mentioned above, given in conjunction with the accompanying drawings and embodiments scheme content can derive the similar techniques scheme.In every case be the content that does not break away from technical solution of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical solution of the present invention according to technical spirit of the present invention.
Claims (9)
1. an air conditioning duct system of high speed sleeper is characterized in that: comprise the air-conditioning unit (2) and the air interchanger (3) that are hung on train body (1) bottom;
The air outlet of described air-conditioning unit (2) is connected air channel (4) with air-supply under the car respectively with return air inlet and is connected air channel (5) connection with return air under the car, described car down air-supply connect air channel (4) be connected with return air under the car air channel (5) pass hull bottom plate respectively be arranged at floor compartment in air delivery duct (6) be connected with air return duct (7) in the floor, air delivery duct in the described floor (6) be arranged on cabin side air delivery duct within the walls and be connected, both sides and top area at each parlor respectively are provided with an air outlet (8,9,10), bottom section at each parlor is provided with at least one return air inlet (11), and the return air inlet (11) that air return duct in the described floor (7) passes in floor and the described parlor is connected;
Described air interchanger (3) is connected with the fresh wind port that is positioned at car body headwall top by the fresh flue (18) that is arranged in the floor, the new wind outlet of described air interchanger (3) is connected with air-conditioning unit (2) by fresh flue under the car (12), described air interchanger (3) also is connected with useless row's connection air channel (13) under the car, air return duct (7) is connected in useless air exhausting duct (14) during the useless down row of this car connects air channel (13) and is arranged on floor compartment and the floor, be provided with useless exhaust outlet (20) in the car internal sanitary accomodation, waste gas enters the useless air exhausting duct (14) in the floor thus.
2. air conditioning duct system of high speed sleeper according to claim 1 is characterized in that: the air outlet (8,9,10) in the described parlor is separately positioned on bottom, parlor side wall and the top board junction of curtain and three positions, top of parlor door.
3. air conditioning duct system of high speed sleeper according to claim 1 is characterized in that: the return air inlet (11) that is arranged on described parlor bottom section is driveed at the shop in lower berth leg (15) and is located, and is designed to integrative-structure with shop leg (15).
4. air conditioning duct system of high speed sleeper according to claim 1 is characterized in that: below vertical partition in interval parlor and corridor a vent window is set.
5. air conditioning duct system of high speed sleeper according to claim 1, it is characterized in that: described cabin side air delivery duct within the walls is made up of compound light air road (16) and glass-felt plastic air channel (17) two parts of being positioned between window, air delivery duct in the described floor (6) is connected with compound light air road (16) between window, be connected with glass-felt plastic air channel (17), the air outlet (8,9,10) in the described parlor all is connected with described glass-felt plastic air channel (17) again.
6. air conditioning duct system of high speed sleeper according to claim 5, it is characterized in that: the material in described compound light air road (16) is formed by five layers from outside to inside, be respectively aluminium foil, PE, hard film, PE, aluminium foil, the material at the interface position in compound light air road (16) is formed by three layers, is respectively: rubber, woollen goods fiber, rubber.
7. air conditioning duct system of high speed sleeper according to claim 1, it is characterized in that: three air outlets (8,9,10) in the described parlor comprise that at least one is manual Adjustable air port for electronic Adjustable air port and one, and the interior controller signals of described electronic Adjustable air port and parlor is connected.
8. air conditioning duct system of high speed sleeper according to claim 1 is characterized in that: described car down air-supply connects under air channel (4), the car return air and connects the useless air exhausting duct (14) that the useless down row of fresh flue (12), car connects in air channel (13), the floor under the fresh flue (18) in air return duct (7), the floor, the car in air delivery duct (6), the floor in air channel (5), the floor and all adopt the aluminium sheet material.
9. according to each described air conditioning duct system of high speed sleeper of claim 1 to 8, it is characterized in that: described air-conditioning unit (2) is two, be the two ends that diagonal line is arranged at car body (1) bottom respectively, two air-conditioning units (2) air outlet is connected the connection air channel (4) of blowing under the car respectively with return air inlet and is connected air channel (5) with return air under the car.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101311651A CN101850774B (en) | 2009-04-03 | 2009-04-03 | Air conditioning duct system of high speed sleeper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101311651A CN101850774B (en) | 2009-04-03 | 2009-04-03 | Air conditioning duct system of high speed sleeper |
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| CN101850774A CN101850774A (en) | 2010-10-06 |
| CN101850774B true CN101850774B (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101311651A Active CN101850774B (en) | 2009-04-03 | 2009-04-03 | Air conditioning duct system of high speed sleeper |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158730B (en) * | 2011-12-09 | 2016-02-10 | 南车青岛四方机车车辆股份有限公司 | Intercity motor train unit air conditioning duct system |
| CN103373366B (en) * | 2012-04-13 | 2016-09-07 | 中车青岛四方机车车辆股份有限公司 | Air conditioner of subway vehicle unit ventilation system |
| CN103144646B (en) * | 2013-03-05 | 2015-10-21 | 唐山轨道客车有限责任公司 | Trolley coach air conditioner ventilating system and trolley coach |
| CN105460034B (en) * | 2015-11-18 | 2018-01-12 | 西安建筑科技大学 | A kind of attached combined type air supply method of double applying and device suitable for train soft sleeper box |
| CN106347394A (en) * | 2016-09-07 | 2017-01-25 | 中车唐山机车车辆有限公司 | Air duct system of sleeping berth motor train unit |
| CN107010081B (en) * | 2017-04-01 | 2019-01-15 | 中车唐山机车车辆有限公司 | The ducting system of sleeping berth parlor and the air-conditioning system of sleeper-car EMUs |
| CN109808716B (en) * | 2017-11-22 | 2020-06-09 | 中车唐山机车车辆有限公司 | Sleeping berth carriage and train |
| CN108622125B (en) * | 2018-07-12 | 2023-09-15 | 中铁宝桥集团有限公司 | Air duct system for maglev train and working method |
| CN109435994A (en) * | 2018-11-09 | 2019-03-08 | 中车长春轨道客车股份有限公司 | A kind of track train gives up heat-extraction system and the track train with the heat-extraction system that gives up |
| CN109878542A (en) * | 2019-03-29 | 2019-06-14 | 辛亚鲁 | A kind of couchette capillary network air-conditioning system |
| CN111959234B (en) * | 2020-07-24 | 2022-07-15 | 珠海格力电器股份有限公司 | Air duct structure, passenger car air conditioner and passenger car |
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| CN2784260Y (en) * | 2004-12-14 | 2006-05-31 | 郑州宇通客车股份有限公司 | Air duct of sleeper coach |
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| CN101850774A (en) | 2010-10-06 |
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Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Hong Tan Zhen Jin Hong Dong Lu Zi Chengyang District of Shandong Province, Qingdao City, No. 88 spine Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |