CN110450804B - Air conditioner return air system for train, train air conditioner device and train - Google Patents
Air conditioner return air system for train, train air conditioner device and train Download PDFInfo
- Publication number
- CN110450804B CN110450804B CN201910702079.5A CN201910702079A CN110450804B CN 110450804 B CN110450804 B CN 110450804B CN 201910702079 A CN201910702079 A CN 201910702079A CN 110450804 B CN110450804 B CN 110450804B
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- air
- return
- train
- air conditioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/009—Means for ventilating only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Abstract
The invention relates to the technical field of train air return, in particular to an air conditioner air return system for a train, a train air conditioner and the train. The air conditioner main unit is arranged in a train passing platform area, a train top is arranged above the platform, the upper top surface of one end of the carriage connected with the passing platform is provided with a return air inlet, the connected return air channel and the return air pipe are communicated with the air conditioner main unit and the return air inlet, and the carriage is not provided with the return air channel any more. The first air return section connected with the air conditioner main machine is provided with a first silencing structure, so that the noise returned to the air return channel by the cavity of the air conditioner main machine can be eliminated, and the noise is prevented from entering a carriage; and the second air return section sets up the second amortization structure at second end terminal surface, can absorb the noise that reduces the air current and strike the second end face and produce to can absorb the noise in the return air passageway, reach the purpose of making an uproar.
Description
Technical Field
The invention relates to the technical field of train air return, in particular to an air conditioner air return system for a train, a train air conditioner and the train.
Background
In China, trains, especially fast trains, become important transportation tools for people to go out. After the railway speed is increased for many times, the railway passenger transport of China spans into a high-speed era of about 300km/h, and the design speed per hour is increased to 400 km/h.
The train air conditioning unit is gradually one of the basic components of modern railway passenger room vehicles, and is used for adjusting the temperature and the humidity in a passenger room and improving the air quality in the passenger room. The train passenger room air conditioning unit mainly comprises a shell, an evaporator, a condenser, a compressor, a throttling device, an evaporation fan, a condensation fan, a controller and the like.
The existing air-conditioning and air-returning system for train generally adopts the mode of supplying air from the top of passenger room and returning air from the flat top of train end. The top of the passenger room is provided with a distributed air supply outlet, and the flat top of the vehicle end is provided with a centralized air return outlet. The air is fed into the vehicle from the top air supply outlet through the air duct on the top plate of the passenger compartment, after being mixed with the air in the vehicle, most of the air flows to the vehicle end and flows back to the air conditioning unit through the return air inlet on the flat top, and a small part of the air is discharged out of the vehicle through the waste discharge device. The return air duct of the air conditioner is usually of an aluminum alloy or stainless steel thin plate structure, and is usually arranged below the air conditioner fan, and the air flow sucked from the passenger compartment of the carriage is directly sent into the air conditioner fan. The double-layer high-speed motor train unit with the speed of 350 kilometers per hour is limited by the space of a passenger room, no air return channels are arranged in the passenger room, the air return channels are all arranged in a passing platform area, the air return quantity is large, the air return channels are short, and the noise of the motor train unit is easy to be transmitted to the passing platform area through the air return channels. Secondly, the air return opening of the vehicle is arranged to be small, the air return speed is high, and the air return noise is high. The requirement for reducing weight and reducing noise of domestic rail trains is continuously improved based on the traffic department, and the noise reduction gradually becomes a key concern when the air conditioning device of the rail train operates on line.
Disclosure of Invention
Technical problem to be solved
In order to solve at least one problem, the invention provides an air-conditioning return air system of a train, an air-conditioning device of the train and the train.
(II) technical scheme
In order to solve the technical problem, the invention provides an air-conditioning return air system for a train, which comprises a return air channel and a return air pipe, wherein the first end of the return air channel is connected with an air conditioner arranged in a train passing platform area, the side surface of the second end of the return air channel is communicated with the return air pipe, and the return air pipe extends to a return air inlet on the top surface in a carriage; the air return inlet is positioned on the inner top surface of one end of the carriage, which is connected with the passing platform area;
the air return channel comprises a first air return section communicated with the air conditioning unit and a second air return section communicated with the air return pipe, and the second air return section is communicated with the first air return section;
the first air return section is provided with a first silencing structure; and a second silencing structure is arranged on the inner end surface of the second end of the second air return section.
Preferably in some embodiments, the first sound attenuating structure comprises a sound attenuating layer; the sound deadening layer includes: a glass wool layer, a slag wool layer, a felt, a foam plastic layer, an artificial sponge layer and a porous ceramic patch.
Preferably in some embodiments, the sound-deadening layer covers an inner side of the first wind-return section; and/or the presence of a gas in the gas,
the sound attenuation layer wraps the outer side face of the first air return section.
In some embodiments, it is preferable that the first silencing structure includes a silencing partition plate, and the silencing partition plate is disposed in the first air return section along an extending direction of the first air return section.
In some embodiments, it is preferable that the number of the sound-absorbing partition plates is plural, and the plural partition plates divide the interior of the first air-return section into plural airflow passages.
In some embodiments, it is preferable that an over-radial baffle is arranged in the first air return section.
Preferably in some embodiments, the second sound attenuating structure is a sound attenuating material applied to the inner end surface.
In some embodiments, it is preferable that the return air inlet of the return air pipe is provided with a silencing guide plate.
Preferably in some embodiments, the sound attenuating baffle includes: a first deflector at the outer edge of the return air inlet and/or a second deflector inside the return air inlet.
The invention also provides a train air conditioning device which comprises an air conditioning host and the train air conditioning return air system connected with the air conditioning host.
The invention also provides a train which comprises the train air conditioning device, wherein an air conditioner of the train air conditioning device is arranged at the top of the carriage and is positioned above the passing platform, and an air return opening is arranged on the upper top surface of one end, connected with the passing platform, of the box body of the carriage; and a return air channel of a return air system of the train air conditioning device is connected with a return air pipe, and the return air pipe extends to the return air inlet.
(III) advantageous effects
According to the technical scheme provided by the invention, the air conditioner main unit is arranged in a train passing platform area and passes through a train top above the platform, the upper top surface of one end of the carriage connected with the passing platform is provided with the air return opening, the connected air return passage and the air return pipe are communicated with the air conditioner main unit and the air return opening, and the air conditioner main unit is not provided with the air return passage in the carriage. The first air return section connected with the air conditioner main machine is provided with a first silencing structure, so that the noise returned to the air return channel by the cavity of the air conditioner main machine can be eliminated, and the noise is prevented from entering a carriage; and the second air return section sets up the second amortization structure at second end terminal surface, can absorb the noise that reduces the air current and strike the second end face and produce to can absorb the noise in the return air passageway, reach the purpose of making an uproar.
Drawings
Fig. 1 is a schematic front view of an air-conditioning return structure for a train according to an embodiment of the present invention;
FIG. 2 is a schematic top view of an air conditioning return structure for a train in accordance with an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2 according to the present invention.
In the figure: 1. an air conditioner main machine; 2. an air return channel; 21. a first air return section; 22. a second air return section; 23. a first end; 24. a second end; 3. a return air duct; 4. a first sound attenuating structure; 41. a sound-deadening layer; 42. a sound-deadening partition plate; 5. a second sound attenuating structure; 6. an air return opening; 7. an air return inlet; 8. silencing guide plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "first", "second", "third" and "fourth" do not denote any sequence relationship, but are merely used for convenience of description. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "upper" and "lower" are defined herein with respect to the specific location of the product in use.
The invention provides an air conditioning and returning system for a train, a train air conditioning device and the train, aiming at the problems that the conventional train has short return air pipeline and small return air inlet, so that the noise is higher.
Products, methods, and the like will be described in detail below with reference to basic designs, extended designs, and alternative designs.
The invention provides an air conditioning and air returning system for a train, which comprises an air returning channel 2 and an air returning pipe 3, wherein a first end 23 of the air returning channel 2 is connected with an air conditioner arranged in a train passing platform area, the side surface of a second end 24 of the air returning channel 2 is communicated with the air returning pipe 3, and the air returning pipe 3 extends to an air returning opening 6 on the top surface in a carriage; the air return opening 6 is positioned on the inner top surface of one end of the carriage connected with the passing platform area; the air return channel 2 comprises a first air return section 21 communicated with the air conditioning unit and a second air return section 22 communicated with the air return pipe 3, and the second air return section 22 is communicated with the first air return section 21; the first air return section 21 is provided with a first silencing structure 4; the inner end face of the second air return section 22 at the second end 24 is provided with a second silencing structure 5.
The air conditioner main unit 1 is arranged in a train passing platform area, specifically, the train passes through the top of a platform, the carriage is connected with the upper top surface of one end passing through the platform and is provided with a return air inlet, the connected return air channel 2 and the return air pipe 3 are communicated with the air conditioner main unit 1 and the return air inlet, and the carriage is not provided with the return air channel 2. The first air return section 21 connected with the air conditioner main unit 1 is provided with the first silencing structure 4, so that the noise of the cavity of the air conditioner main unit 1 returning to the air return channel 2 can be eliminated, and the noise is prevented from entering the box body; and the second air return section 22 is provided with a second silencing structure 5 on the end surface of the second end 24, so that the noise generated by the impact of air flow on the end surface of the second end 24 can be absorbed and reduced, and the noise in the air return channel 2 can be absorbed, thereby achieving the purpose of reducing noise.
The passing platform is arranged between the adjacent carriages of the train, and the top of the train is positioned above the passing platform and can be regarded as a passing platform area. In this technique, the carriage is inside no longer to set up return air passageway 2, and return air passageway 2 sets up in passing through the platform region. The return air duct 3 is connected to the end side of the second end 24 of the return air channel 2, where the air flow is redirected.
The first sound-deadening structure 4 comprises a sound-deadening layer 41, and the sound-deadening layer 41 may be a glass wool layer, a slag wool layer, a felt (equal fiber layer), a foam plastic layer, an artificial sponge layer, or a porous ceramic patch.
As shown in fig. 4, the sound deadening layer covers the inner side face of the first wind return section 21; and/or the silencing layer wraps the outer side face of the first air return section 21. The silencing layer can only cover the inner layer, can only cover the outer layer, or can cover both the inner layer and the outer layer. The covering mode can be partial covering or complete covering. The covering may be by gluing, wrapping, winding, etc. The first air return section 21 refers to an air return channel 2 at one end close to the air conditioning cavity, and the part is greatly influenced by noise of the air conditioning cavity, so that the part is subjected to important silencing treatment.
In some embodiments, the first silencing structure 4 includes a silencing partition 42, and the silencing partition 42 is disposed in the first air-returning section 21 along the extending direction of the first air-returning section 21. The silencing partition plate 42 divides the air flow to flow, reduces the collision of the air flow in the air return channel 2, and plays a role of a guide plate to guide the air flow. The sound-deadening partition 42 may be a thin plate, a flat plate or a curved plate, and the plate may be provided with a sound-deadening portion.
The number of the silencing partition plates 42 is plural, and the plural partition plates partition the inside of the first return section 21 into plural airflow passages. The airflow channels may be the same or different in shape, and all the airflow channels are combined to form the inner space of the first air return section 21. In some embodiments, the sound-deadening partition 42 may extend through the entire first air recovery section 21 or only through a portion of the first air recovery section 21 adjacent to the air conditioner.
A radial silencing partition plate 42 is arranged in the first air return section 21. That is, the silencing partition 42 divides the first return section 21 into two airflow passages of the same shape.
As mentioned above, the second silencing structure 5 is disposed on the end surface of the second end 24 to reduce the impact of the airflow on the end surface of the second end 24, so as to achieve the purpose of silencing and reducing noise. The second silencing structure 5 is a silencing material laid on the inner end face. The sound-deadening material may be foam, fiber, sound-deadening ceramic, or the like.
Based on the above embodiments, as shown in fig. 3, the return air inlet 7 of the return air duct 3 is further provided with a silencing baffle plate 8. The guide plate guides the gas to flow, so that the purposes of noise reduction and noise reduction are achieved. The bending direction of the guide plate is based on the fact that the air streamline enters the return air pipe 3, and the phenomena of air flow resistance, air flow collision caused by turning in the air flow and the like are reduced as much as possible.
In some embodiments, the sound attenuating baffle 8 comprises: a first baffle at the outer edge of the return air inlet 7 and/or a second baffle inside the return air inlet 7. The silencing guide plate 8 can be only arranged at the outer edge of the return air inlet 7 to guide the flow of return air to flow into the return air inlet 7, so that the problems that the return air inlet 7 is small, the gas flow resistance is large, and the air flow is concentrated at the return air inlet 7 to generate large noise are solved.
The invention also provides a train air conditioning device which comprises the air conditioning main machine 1 and a train air conditioning return system connected with the air conditioning main machine 1.
The air conditioner main unit 1 is arranged in a train passing platform area, specifically, the train passes through the top of a platform, the carriage is connected with the upper top surface of one end passing through the platform and is provided with a return air inlet, the connected return air channel 2 and the return air pipe 3 are communicated with the air conditioner main unit 1 and the return air inlet, and the carriage is not provided with the return air channel 2. The first air return section 21 connected with the air conditioner main unit 1 is provided with the first silencing structure 4, so that the noise of the cavity of the air conditioner main unit 1 returning to the air return channel 2 can be eliminated, and the noise is prevented from entering the box body; and the second air return section 22 is provided with a second silencing structure 5 on the end surface of the second end 24, so that the noise generated by the impact of air flow on the end surface of the second end 24 can be absorbed and reduced, and the noise in the air return channel 2 can be absorbed, thereby achieving the purpose of reducing noise.
The invention also provides a train which comprises a train air conditioning device, wherein an air conditioner of the train air conditioning device is arranged at the top of the carriage and is positioned above the passing platform, and an air return opening is arranged on the upper top surface of one end, connected with the passing platform, of the box body of the carriage; a return air channel 2 of a return air system of the train air conditioning device is connected with a return air pipe 3, and the return air pipe 3 extends to a return air inlet.
The air conditioner main unit 1 is arranged in a train passing platform area, specifically, the train passes through the top of a platform, the carriage is connected with the upper top surface of one end passing through the platform and is provided with a return air inlet, the connected return air channel 2 and the return air pipe 3 are communicated with the air conditioner main unit 1 and the return air inlet, and the carriage is not provided with the return air channel 2. The first air return section 21 connected with the air conditioner main unit 1 is provided with the first silencing structure 4, so that the noise of the cavity of the air conditioner main unit 1 returning to the air return channel 2 can be eliminated, and the noise is prevented from entering the box body; and the second air return section 22 is provided with a second silencing structure 5 on the end surface of the second end 24, so that the noise generated by the impact of air flow on the end surface of the second end 24 can be absorbed and reduced, and the noise in the air return channel 2 can be absorbed, thereby achieving the purpose of reducing noise.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (11)
1. The train air conditioning and air returning system is characterized by comprising an air returning channel and an air returning pipe, wherein the air returning channel is arranged in a platform passing area, the first end of the air returning channel is connected with an air conditioner arranged in the platform passing area of a train, the side surface of the second end of the air returning channel is communicated with the air returning pipe, and the air returning pipe extends to an air returning port on the inner top surface of a carriage; the air return inlet is positioned on the inner top surface of one end of the carriage, which is connected with the passing platform area;
the air return channel comprises a first air return section communicated with the air conditioner, and also comprises a second air return section communicated with the air return pipe, and the second air return section is communicated with the first air return section;
the first air return section is provided with a first silencing structure; and a second silencing structure is arranged on the inner end surface of the second end of the second air return section.
2. The train air conditioning return system of claim 1, wherein the first sound attenuating structure includes a sound attenuating layer; the sound deadening layer includes: a glass wool layer, a slag wool layer, a felt, a foam plastic layer, an artificial sponge layer and a porous ceramic patch.
3. The train air conditioning return system of claim 2, wherein the sound deadening layer covers an inner side face of the first return section; and/or the presence of a gas in the gas,
the sound attenuation layer wraps the outer side face of the first air return section.
4. The train air conditioning return system of claim 1, wherein the first silencing structure includes a silencing partition that is provided in the first return section in an extending direction of the first return section.
5. The air conditioning return system for a train according to claim 4, wherein the number of the silencing partition is plural, and the plural silencing partitions partition the inside of the first return section into plural airflow passages.
6. The train air conditioning return system of claim 5, wherein a super-radial baffle is disposed within the airflow passage.
7. The air conditioning train return system of claim 1, wherein the second sound attenuating structure is a sound attenuating material applied to the inner end surface.
8. The train air conditioning return system of any one of claims 1 to 6, wherein a return air inlet of the return air duct is provided with a noise reduction baffle.
9. The train air conditioning return system of claim 8, wherein the noise dampening baffle comprises: a first deflector at the outer edge of the return air inlet and/or a second deflector inside the return air inlet.
10. An air conditioning device for a train, comprising an air conditioning main unit and the air conditioning return system for a train according to any one of claims 1 to 9 connected to the air conditioning main unit.
11. A train, which is characterized by comprising the train air conditioning device as claimed in claim 10, wherein an air conditioner of the train air conditioning device is arranged at the top of a carriage and is positioned above a passing platform, and an air return opening is arranged on the upper top surface of one end, connected with the passing platform, of a box body of the carriage; and a return air channel of a return air system of the train air conditioning device is connected with a return air pipe, and the return air pipe extends to the return air inlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910702079.5A CN110450804B (en) | 2019-07-31 | 2019-07-31 | Air conditioner return air system for train, train air conditioner device and train |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910702079.5A CN110450804B (en) | 2019-07-31 | 2019-07-31 | Air conditioner return air system for train, train air conditioner device and train |
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| CN110450804A CN110450804A (en) | 2019-11-15 |
| CN110450804B true CN110450804B (en) | 2020-10-27 |
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| KR101000377B1 (en) * | 2008-11-04 | 2010-12-13 | 현대로템 주식회사 | Middle-ceiling structure having cooled and heated air duct assembly for railway vehicle |
| KR101312387B1 (en) * | 2011-04-18 | 2013-09-27 | 엔알텍주식회사 | Silencer of duct for air conditioner of train |
| JP5866194B2 (en) * | 2011-12-12 | 2016-02-17 | 川崎重工業株式会社 | Air conditioner and railway vehicle |
| CN103158732B (en) * | 2011-12-15 | 2016-01-20 | 南车青岛四方机车车辆股份有限公司 | Speed motor train unit air conditioner ducting system |
| CN202879189U (en) * | 2012-07-10 | 2013-04-17 | 郑州宇通客车股份有限公司 | Passenger car and air-conditioning air return channel structure thereof |
| CN202792419U (en) * | 2012-07-13 | 2013-03-13 | 江苏新誉空调系统有限公司 | Silencing air duct for rail air conditioner |
| CN203550165U (en) * | 2013-11-28 | 2014-04-16 | 南车株洲电力机车有限公司 | Air return channel of air conditioner |
| CN103661458B (en) * | 2013-12-17 | 2017-02-01 | 中车青岛四方机车车辆股份有限公司 | Air-conditioner unit air duct system for vehicle |
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| CN206278107U (en) * | 2016-11-23 | 2017-06-27 | 江门中车轨道交通装备有限公司 | Railcar sends air duct noise-reducing optimization system back to |
| CN107323475B (en) * | 2017-07-07 | 2019-12-17 | 中车株洲电力机车有限公司 | Rail transit vehicle air conditioner air duct, air conditioning system and rail transit vehicle |
| CN207773133U (en) * | 2018-01-05 | 2018-08-28 | 金鑫美莱克空调系统（无锡）有限公司 | A kind of noise elimination wind conduit for rail traffic air-conditioning system |
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| CN109720172A (en) * | 2017-10-27 | 2019-05-07 | 郑州宇通客车股份有限公司 | Air conditioning air outlet denoising structure |
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