CN103158732A - Air conditioning air duct system of high-speed motor train unit - Google Patents
Air conditioning air duct system of high-speed motor train unit Download PDFInfo
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- CN103158732A CN103158732A CN201110420375XA CN201110420375A CN103158732A CN 103158732 A CN103158732 A CN 103158732A CN 201110420375X A CN201110420375X A CN 201110420375XA CN 201110420375 A CN201110420375 A CN 201110420375A CN 103158732 A CN103158732 A CN 103158732A
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Abstract
The invention relates to an air conditioning air duct system of a high-speed motor train unit. The air conditioning air duct system of the high-speed motor train unit comprises an air conditioning unit, wherein the air conditioning unit is communicated with an air-supply outlet and an air-return inlet which are arranged in a train through an air-supply duct and an air-return duct, and the air conditioning unit is communicated with a fresh air port through a fresh air duct. The air-supply duct comprises a middle-top air-supply duct arranged in the central area on the top of a train body and/ or side-top air-supply ducts arranged in the side-top areas on two sides of train body, and a plurality of air-supply outlets are evenly formed in the middle-top air-supply duct and the side-top air-supply ducts. According to the air conditioning air duct system of the high-speed motor train unit, air is supplied from the center and two sides of a coach of the train and returns from one end of the coach of the train, air motion and air distribution in the whole train are benefited, therefore air distribution in the train is uniform, the uniformity and stability of temperature, humidity, air speed and cleanliness in the train are guaranteed, and the requirement of comfort of passengers is met. Besides, an indoor machine is arranged at one end of the coach of the train, the air-return inlet is arranged on the position near the indoor machine, thus air return resistance is reduced, noise inside the train is reduced, and comfort in riding the train is improved.
Description
Technical field
The present invention relates to a kind of air conditioning duct system, particularly a kind of air conditioning duct system that uses on more speed grade motor train unit belongs to railway vehicle air conditioner manufacturing technology field.
Background technology
In middle and high fast motor train unit, every joint compartment generally is equipped with two air-conditioning units, and every air-conditioning unit adopts cellular structure, and air-conditioning unit complete machine is arranged in vehicle bottom, also is provided with air interchanger at vehicle bottom.The air-conditioning unit is connected with return air inlet with air outlet in car by supply air duct and return airway, air outlet comprises the compartment inner wind outlet, passes through platform air outlet and sanitary accomodation air outlet, return air inlet comprises in the compartment return air inlet and by the platform return air inlet, be provided with useless exhaust outlet in the sanitary accomodation with by platform, useless exhaust outlet is connected with air interchanger by useless air exhausting duct, and air interchanger is connected with the new wind entrance that is positioned at the car body end by the fresh flue.
Supply air duct comprises that mainly under the car that is connected with the air-conditioning unit, air-supply connects the air channel, under car, air-supply connects the air channel and passes the base plate of car body and be connected with air delivery duct in the floor, in the floor air delivery duct pass behind the floor be arranged at vehicle body side wall in a plurality of windows between the air channel be connected, between window, the top in air channel converges to air delivery duct, car side top, air delivery duct, car side top is along the vertical elongated setting of car body, and the air outlet in the compartment is opened on this air delivery duct, car side top uniformly.
Return airway comprises that mainly under the car that is connected with the air-conditioning unit, return air connects the air channel, under car, return air connects the air channel and passes the base plate of car body and be connected with air return duct in the floor, in the floor, air return duct passes in floor and compartment return air inlet and is connected the platform return air inlet and is connected, return air inlet in car is arranged at the bottom section in the compartment, and operated by rotary motion is at the lower position of seat.
More speed grade motor train unit, no matter be speed or project organization, all with vehicle in the past, larger difference is arranged, the air conditioning duct system of existing motor train unit can't satisfy the inhomogeneity higher requirement of air-supply in air-tightness and car, therefore only for the suitable air conditioner system of actual conditions development and design of more speed grade motor train unit, just can make air parameter and air quality in passenger vehicle reach requirement, for the passenger provides comfortable traveling environment.
Summary of the invention
Main purpose of the present invention is to address the above problem, and provides a kind of air-tightness good, and air-supply is even, and can satisfy the speed motor train unit air conditioner ducting system of vehicle lightweight requirements.
For achieving the above object, technical scheme of the present invention is:
A kind of speed motor train unit air conditioner ducting system, comprise the air-conditioning unit, described air-conditioning unit is communicated with air outlet and return air inlet in being arranged at car by supply air duct and return airway, described air-conditioning unit is communicated with fresh wind port by new wind air channel, described supply air duct comprises the top supply air duct that is arranged in the car body top middle section and/or is positioned at the side top supply air duct in zone, side top, car body both sides, evenly offers a plurality of air outlets on described middle top supply air duct and side top supply air duct.
Further, described air-conditioning unit comprises indoor set and off-premises station, and described off-premises station is hung under car, and described indoor set is installed on an end in compartment, and described indoor set is connected by refrigerant pipeline with off-premises station.
Further, described return air inlet is arranged at an end in compartment.
Further, described fresh wind port is arranged on the car external position of car body side window top.
Further, described middle top supply air duct is along the elongated setting of the length direction of described car body, and air outlet is opened on the lower surface of described middle top supply air duct equably.
Further, described side top supply air duct is along the elongated setting of the length direction of described car body, and air outlet is opened on the sidewall of described side top supply air duct equably.
Further, be provided with middle top supply air duct and/or side top supply air duct on the top board in driver's cab.
Further, the return air inlet of described driver's cab is arranged on the rear end door or back-end wall of described driver's cab.
Further, be provided with for the air quantity diversion device that distributes each air channel volume between the air outlet of described air-conditioning unit indoor set and described middle top supply air duct and each side top supply air duct.
Further, described air quantity diversion device is one, is used for mating simultaneously the air quantity of described top supply air duct and two side top supply air ducts;
Or described air quantity diversion device is two, be respectively the first part flow arrangement and the second part flow arrangement, described the first part flow arrangement is used for the air quantity in one of them described side top supply air duct of coupling and middle air channel, on the air channel, the second part flow arrangement is set in the middle of described, described the second part flow arrangement is used for mating the air quantity of described top supply air duct and another described side top supply air duct.
Further, described air quantity diversion device is the arc deflector that is arranged in the air channel.
Further, described deflecting plate is aluminium sheet or glass epoxy, is covered with sound absorber and/or thermal insulating material on described deflecting plate.
Further, an air-supply blending bin is set at the air outlet place of described air-conditioning unit indoor set, the air outlet of described air-supply blending bin is communicated with described supply air duct.
Further, described air-supply blending bin comprises box-shaped enclosure, have the ventilation inlet that is communicated with described indoor set and the air outlet that is communicated with described supply air duct on described shell, be provided with the described air quantity diversion device for shunting in described shell, be provided with sound absorption materials at the inwall of described shell.
Further, be communicated with a return air blending bin between the ventilation inlet of described return airway and new wind air channel and described indoor set.
Further, described return air blending bin comprises a box-shaped enclosure, is provided with the ventilation inlet that is communicated with described return airway and new wind air channel and reaches the air outlet that is communicated with described indoor set on described shell, is provided with sound absorption materials at the inwall of described shell.
Further, be connected by soft air duct between described air-supply blending bin and return air blending bin and described supply air duct and return airway.
Further, be provided with useless arranging device on the floor in described car, described useless arranging device is communicated with by the interior useless exhaust outlet of useless air exhausting duct and car, is provided with operated pneumatic valve at the exhaust outlet place of described useless arranging device.
Content to sum up, a kind of speed motor train unit air conditioner ducting system of the present invention, central authorities and both sides air-supply from the compartment, an end return air from the compartment, be conducive to adjust Air Flow and distribution in car, make the interior air current composition of car even, guarantee to form more even and stable temperature, humidity, air-flow velocity and cleanliness in the compartment, to satisfy the requirement of passenger's comfort.In addition, indoor set is arranged on an end in compartment, and supply air duct all is arranged on roof, and return air inlet is arranged at the end near indoor set, is conducive to reduce back wind resistance.In car, waste gas by being installed on the useless arranging device discharge on the floor in car, also helps the air-tightness that guarantees vehicle.
Description of drawings
Fig. 1 structural representation of the present invention;
Fig. 2 is bowing to view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 2;
Fig. 4 is the C-C cutaway view of Fig. 2;
Fig. 5 is side of the present invention top supply air duct section structure schematic diagram;
Fig. 6 is top supply air duct and side top supply air duct flow dividing structure schematic diagram in the present invention;
Fig. 7 is the present invention's blending bin structural representation of blowing;
Fig. 8 is return air blending bin structural representation of the present invention.
as extremely shown in Figure 8 in Fig. 1, indoor set 1, compartment 2, return airway 3, middle top supply air duct 4, left side of car top supply air duct 5, right side of car top supply air duct 6, side top air outlet 7, air-supply blending bin 8, car body 9, ventilation inlet 10, air outlet 11, middle air channel 12, air outlet 13, the first part flow arrangement 14, sound absorber 15, sound absorption materials 16, sound-absorbing orifice plate 17, warm material 18, the second part flow arrangement 19, new wind air channel 20, fresh wind port 21, return air blending bin 22, shell 23, ventilation inlet 24, air outlet 25, sound absorption materials 26, sound-absorbing orifice plate 27, bolt 28, useless arranging device 29, useless air exhausting duct 30, sanitary accomodation 31, soft air duct 32.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail:
Embodiment one:
As shown in Figure 1, the speed motor train unit air conditioner ducting system, comprise the air-conditioning unit, in the present embodiment, the air-conditioning unit is split-type structural, comprises indoor set 1 and off-premises station (not shown), and off-premises station is hung on down, 1 of indoor set is installed on an end in compartment 2, and indoor set 1 is connected by refrigerant pipeline with off-premises station.The air-conditioning unit adopts split-type structural, can shorten the length in air channel, and then alleviate the total weight in air channel, satisfies the requirement higher to the vehicle weight-saving of more speed grade motor train unit.Simultaneously, the shortening in air channel can also make refrigerating capacity obtain larger utilization, has reduced the loss of the cold that causes because the air channel is long, has improved the refrigerating efficiency of complete machine.
The air outlet of indoor set 1 is communicated with supply air duct, be used for the air that 2 interior conveyings are processed through evaporator to the compartment, to regulate temperature, humidity and the freshness in compartment 2, the ventilation inlet of indoor set 1 is communicated with return airway 3, is used for the air in compartment 2 and new wind are flowed in indoor set 1 carrying out interchange of heat with evaporator.
In the present embodiment, every joint compartment 2 is interior arranges a return air inlet, and the return air inlet (not shown) is arranged at compartment 2 near an end of indoor sets 1, is conducive to reduce back wind resistance.Return air inlet is arranged on the top of the headwall in compartment 2, perhaps is arranged on the top board in compartment 2, and return air inlet adopts the structure of grid, and return air inlet is communicated with return airway 3, and return airway 3 also is positioned at an end in compartment 2.
As shown in Figure 2, supply air duct comprises the top supply air duct 4 that is arranged in 2 center of top zones, compartment, is positioned at the left side of car top supply air duct 5 in zone, a distolateral top, is positioned at the right side of car top supply air duct 6 in zone, “A” end of car side top.In compartment 2, can only select to arrange middle top supply air duct 4, or only select left side of car top supply air duct 5 and right side of car top supply air duct 6, in the present embodiment, preferred, supply air duct comprises above-mentioned three air channels, the simultaneously 2 interior air-supplies to the compartment of 2 central authorities and both sides from the compartment, and from the compartment end centralized return air system of 2, this air-supply and air return method are conducive to adjust Air Flow and distribution in car, make the interior air current composition of car more even, satisfy the passenger to the requirements at the higher level of compartment 2 interior amenities.
Middle top supply air duct 4 is along the elongated setting of the length direction of car body, middle top supply air duct 4 is rectangular box type construction, middle top supply air duct 4 is fixed on car body 9 by fasteners such as bolts, offers equably a plurality of top air outlet (not shown)s for the 2 interior air-supplies to the compartment on the lower surface of the middle top supply air duct 4 by the platform position in compartment 2.
left side of car top supply air duct 5 and right side of car top supply air duct 6 are also along the elongated setting of the length direction of car body, as shown in Figure 5, left side of car top supply air duct 5 and right side of car top supply air duct 6 are curved box type construction, the radian of its shape and position, car body side top is complementary, left side of car top supply air duct 5 and right side of car top supply air duct 6 are fixed on car body 9 by fasteners such as bolts 28, all evenly offer a plurality of side top air outlets 7 for the 2 interior air-supplies to the compartment on the sidewall of left side of car top supply air duct 5 and right side of car top supply air duct 6, side top air outlet 7 is positioned at the top of compartment 2 both sides baggage racks.
As Fig. 3 and shown in Figure 7, one air-supply blending bin 8 is set at the air outlet place of air-conditioning unit indoor set 1, air-supply blending bin 8 is the part of supply air duct, be used for and mix from the air outlet air out of indoor set 1 and then to distribute according to air quantity, be both and reduce air-conditioning unit and pneumatic noise.Air-supply blending bin 8 comprises box-shaped enclosure 9, and shell 9 is captiveed joint with the housing of indoor set 1 by bolt.Have on shell 9 ventilation inlet 10 that is communicated with indoor set 1, the air outlet 11 that is communicated with left side of car top supply air duct 5, with the air outlet 13 that middle air channel 12 is communicated with, middle air channel 12 is communicated with middle top supply air duct 4 and right side of car top supply air duct 6 respectively again.
Be provided with the first part flow arrangement for shunting in air-supply blending bin 8, the first part flow arrangement 14 is the arc deflector that is arranged in shell 9, deflecting plate is set to two, is used for coupling from air outlet 11 and air outlet 13 to left side of car top supply air duct 5 and the air quantity that carries in middle air channel 12.Deflecting plate adopts aluminium sheet, is covered with glass silk flosssilk wadding sound absorber 15 on aluminium sheet again, has several sound-absorption hole on aluminium sheet, plays the effect of absorbing sound and lowering noise preferably, also is conducive to expendable weight simultaneously.
In order further to reduce noise, apply again one deck glass silk flosssilk wadding sound absorption materials 16 on the inwall of the shell 9 of air-supply blending bin 8, in the outside of sound absorption materials 16, one deck sound-absorbing orifice plate 17 is set again.In order to prevent shell 9 dewfall, in order to guarantee that cold does not lose, apply the quiet De Er warm material 18 of one deck on the outer wall of shell 9 simultaneously.Be expendable weight, shell 9 and sound-absorbing orifice plate 17 all adopt aluminium sheet.
As shown in Figure 6, middle air channel 12 is used for being communicated with top supply air duct 4 and right side of car top supply air duct 6, be provided with the second part flow arrangement 19 in middle air channel 12, the second part flow arrangement 19 is an arc deflector, and this deflecting plate is used for coupling to the air quantity of right side of car top supply air duct 6 and 4 conveyings of top supply air duct.This deflecting plate is glass-reinforced plastic material, is covered with the PE warm material in both sides, and with Antidewing, glass-felt plastic has intensity preferably, and weight is lighter, is easy to shape.
Between a car compartment 2 and driver's cab (not shown), one indoor set 1 is set, be provided with middle top supply air duct 4 and/or left side of car top supply air duct 5 and right side of car top supply air duct 6 on top board in driver's cab, in the present embodiment, for expendable weight, preferably, middle top supply air duct 4 only is set in driver's cab, the middle top supply air duct 4 in driver's cab is to be gone over by car compartment 2 interior middle top supply air ducts 4 extension.The return air inlet of driver's cab is arranged on the rear end door or back-end wall of driver's cab, the return air inlet of driver's cab is communicated with return airway, this return airway is communicated with the return airway 3 in compartment 2, enters together indoor set 1 after the return air in the return air of driver's cab and car compartment 2 gather again.
As shown in Figure 4; indoor set 1 also is communicated with a new wind air channel 20; the fresh wind port 21 of 20 ends, new wind air channel is arranged on the car external position on car body side window upper side top; fresh wind port 21 places arrange a new air valve; after the ambient pressure variation exceeds setting value; new air valve is closed in the pressure protective device action, can suppress like this fluctuation of pressure in car, improves travelling comfort.
As shown in Figure 4, be communicated with a return air blending bin 22 between the ventilation inlet of return airway 3 and new wind air channel 20 and indoor set 1, return air blending bin 22 is the part of return airway 3, mixes in order to return air and the new wind that will enter from return airway 3 and new wind air channel 20.As shown in Figure 8, return air blending bin 22 comprises a box-shaped enclosure 23, is provided with the ventilation inlet 24 that is communicated with return airway 3 and new wind air channel 20, the air outlet 25 that is communicated with indoor set 1 on shell 23.
In order to reduce noise, apply again one deck glass silk flosssilk wadding sound absorption materials 26 on the inwall of the shell 23 of return air blending bin 22, in the outside of sound absorption materials 26, one deck sound-absorbing orifice plate 27 is set again.In order to prevent shell 23 dewfall, in order to guarantee that cold does not lose, apply one layer of heat preservation material 28 on the outer wall of shell 23 simultaneously.Be expendable weight, between shell 23 and suction, orifice plate 27 all adopts aluminium sheet.
As depicted in figs. 1 and 2, be installed with useless arranging device 29 on the floor in car, useless arranging device 29 is communicated with by the interior useless exhaust outlet in useless air exhausting duct 30 and sanitary accomodation 31.Exhaust outlet place at useless arranging device 29 is provided with operated pneumatic valve, and when ambient pressure was excessive, operated pneumatic valve can autoshutdown, and then guarantees air-tightness in car.
As shown in Figure 3 and Figure 4, all be connected one section soft air duct 32 in air-supply blending bin 8 and return air blending bin 22 with junction between each air channel, be connected by one section soft air duct 32 too between middle air channel and right side of car top supply air duct, in the time of can reducing like this vehicle high-speed operation, the vibration in air channel, reduce internal car noise.
Embodiment two:
Be with embodiment one difference, be provided with for the air quantity diversion device that distributes simultaneously each air channel volume between the air outlet of air-conditioning unit indoor set 1 and middle top supply air duct 4, left side of car top supply air duct 5 and right side of car top supply air duct 6, this air quantity diversion device only is provided with one.
The air quantity diversion device can be arranged on a plurality of deflecting plates in air-supply blending bin 8, be used for distributing simultaneously the air quantity of top supply air duct 4, left side of car top supply air duct 5 and right side of car top supply air duct 6, at this moment, air-supply blending bin 8 has three air outlets, top supply air duct 4 in being communicated with respectively, left side of car top supply air duct 5 and right side of car top supply air duct 6.
Embodiment three:
Be with embodiment two differences, 8 of blending bins of air-supply have an air outlet, behind a middle air channel, the top in air channel in the middle of the air quantity diversion device is arranged on, the air quantity diversion device is a plurality of deflecting plates too, is used for distributing simultaneously the air quantity of top supply air duct 4, left side of car top supply air duct 5 and right side of car top supply air duct 6.
Embodiment four:
Be with above-described embodiment difference, the air-conditioning unit also can adopt the unitary air conditioner unit, air-conditioning unit integral body is placed under car, and middle top supply air duct 4, left side of car top supply air duct 5, right side of car top supply air duct 6, return airway 3 and new wind air channel 20 need to be passed the floor and be connected with air-conditioning unit under car.
As mentioned above, given scheme content, can derive similar technical scheme in conjunction with the accompanying drawings and embodiments.In every case be the content that does not break away from technical solution of the present invention,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does according to technical spirit of the present invention.
Claims (18)
1. speed motor train unit air conditioner ducting system, comprise the air-conditioning unit, described air-conditioning unit is communicated with air outlet and return air inlet in being arranged at car by supply air duct and return airway, described air-conditioning unit is communicated with fresh wind port by new wind air channel, it is characterized in that: described supply air duct comprises the top supply air duct that is arranged in the car body top middle section and/or is positioned at the side top supply air duct in zone, side top, car body both sides, evenly offers a plurality of air outlets on described middle top supply air duct and side top supply air duct.
2. speed motor train unit air conditioner ducting system according to claim 1, it is characterized in that: described air-conditioning unit comprises indoor set and off-premises station, described off-premises station is hung under car, and described indoor set is installed on an end in compartment, and described indoor set is connected by refrigerant pipeline with off-premises station.
3. speed motor train unit air conditioner ducting system according to claim 1, it is characterized in that: described return air inlet is arranged at an end in compartment.
4. speed motor train unit air conditioner ducting system according to claim 1 is characterized in that: described fresh wind port is arranged on the car external position of car body side window top.
5. speed motor train unit air conditioner ducting system according to claim 1, it is characterized in that: described middle top supply air duct is along the elongated setting of the length direction of described car body, and air outlet is opened on the lower surface of described middle top supply air duct equably.
6. speed motor train unit air conditioner ducting system according to claim 1 is characterized in that: described side top supply air duct is along the elongated setting of the length direction of described car body, and air outlet is opened on the sidewall of described side top supply air duct equably.
7. speed motor train unit air conditioner ducting system according to claim 1 is characterized in that: be provided with middle top supply air duct and/or side top supply air duct on the top board in driver's cab.
8. speed motor train unit air conditioner ducting system according to claim 7, it is characterized in that: the return air inlet of described driver's cab is arranged on the rear end door or back-end wall of described driver's cab.
9. speed motor train unit air conditioner ducting system according to claim 1 is characterized in that: be provided with for the air quantity diversion device that distributes each air channel volume between the air outlet of described air-conditioning unit indoor set and described middle top supply air duct and each side top supply air duct.
10. speed motor train unit air conditioner ducting system according to claim 9, it is characterized in that: described air quantity diversion device is one, is used for mating simultaneously the air quantity of described top supply air duct and two side top supply air ducts;
Or described air quantity diversion device is two, be respectively the first part flow arrangement and the second part flow arrangement, described the first part flow arrangement is used for the air quantity in one of them described side top supply air duct of coupling and middle air channel, on the air channel, the second part flow arrangement is set in the middle of described, described the second part flow arrangement is used for mating the air quantity of described top supply air duct and another described side top supply air duct.
11. speed motor train unit air conditioner ducting system according to claim 9 is characterized in that: described air quantity diversion device is the arc deflector that is arranged in the air channel.
12. speed motor train unit air conditioner ducting system according to claim 11 is characterized in that: described deflecting plate is aluminium sheet or glass epoxy, is covered with sound absorber and/or thermal insulating material on described deflecting plate.
13. speed motor train unit air conditioner ducting system according to claim 9 is characterized in that: an air-supply blending bin is set at the air outlet place of described air-conditioning unit indoor set, and the air outlet of described air-supply blending bin is communicated with described supply air duct.
14. speed motor train unit air conditioner ducting system according to claim 13, it is characterized in that: described air-supply blending bin comprises box-shaped enclosure, have the ventilation inlet that is communicated with described indoor set and the air outlet that is communicated with described supply air duct on described shell, be provided with the described air quantity diversion device for shunting in described shell, be provided with sound absorption materials at the inwall of described shell.
15. speed motor train unit air conditioner ducting system according to claim 1 is characterized in that: be communicated with a return air blending bin between the ventilation inlet of described return airway and new wind air channel and described indoor set.
16. speed motor train unit air conditioner ducting system according to claim 15, it is characterized in that: described return air blending bin comprises a box-shaped enclosure, be provided with the ventilation inlet that is communicated with described return airway and new wind air channel and reach the air outlet that is communicated with described indoor set on described shell, be provided with sound absorption materials at the inwall of described shell.
17. according to claim 13 or 15 described speed motor train unit air conditioner ducting systems is characterized in that: be connected by soft air duct between described air-supply blending bin and return air blending bin and described supply air duct and return airway.
18. speed motor train unit air conditioner ducting system according to claim 1, it is characterized in that: be provided with useless arranging device on the floor in described car, described useless arranging device is communicated with by the interior useless exhaust outlet of useless air exhausting duct and car, is provided with operated pneumatic valve at the exhaust outlet place of described useless arranging device.
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| CN201110420375.XA CN103158732B (en) | 2011-12-15 | 2011-12-15 | Speed motor train unit air conditioner ducting system |
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| CN201110420375.XA CN103158732B (en) | 2011-12-15 | 2011-12-15 | Speed motor train unit air conditioner ducting system |
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| CN103661436A (en) * | 2013-12-31 | 2014-03-26 | 南车资阳机车有限公司 | Positive pressure ventilation system of power chamber of diesel locomotive |
| CN103935370A (en) * | 2014-04-11 | 2014-07-23 | 南车戚墅堰机车有限公司 | Air-conditioning strip-type ventilation system of driving cab of internal combustion locomotive |
| CN108773384A (en) * | 2018-06-01 | 2018-11-09 | 中车唐山机车车辆有限公司 | A kind of sleeping berth parlor supply air system |
| CN110450804A (en) * | 2019-07-31 | 2019-11-15 | 中车青岛四方机车车辆股份有限公司 | Train air-conditioning return air system, train air-conditioning device and train |
| CN110450802A (en) * | 2019-07-31 | 2019-11-15 | 中车青岛四方机车车辆股份有限公司 | Train gas conditioning system and train |
| CN110525468A (en) * | 2019-09-30 | 2019-12-03 | 中车资阳机车有限公司 | A kind of detection Vehicular multifunctional carbody canopy mounting platform |
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| CN202038315U (en) * | 2011-03-31 | 2011-11-16 | 青岛理工大学 | External variable cross section balanced ventilation system for high-speed train |
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| CN110450804A (en) * | 2019-07-31 | 2019-11-15 | 中车青岛四方机车车辆股份有限公司 | Train air-conditioning return air system, train air-conditioning device and train |
| CN110450802A (en) * | 2019-07-31 | 2019-11-15 | 中车青岛四方机车车辆股份有限公司 | Train gas conditioning system and train |
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