CN105253156A - Air supply structure of air-conditioning set for rail vehicle - Google Patents
Air supply structure of air-conditioning set for rail vehicle Download PDFInfo
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- CN105253156A CN105253156A CN201510655375.6A CN201510655375A CN105253156A CN 105253156 A CN105253156 A CN 105253156A CN 201510655375 A CN201510655375 A CN 201510655375A CN 105253156 A CN105253156 A CN 105253156A
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- air
- supply
- conditioning
- delivery duct
- rail vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses an air supply structure of an air-conditioning set for a rail vehicle. The air supply structure comprises a air blower arranged in an air-conditioning cold collection chamber and an air delivery duct connected between the nozzle of the air blower and the air outlet of the air-conditioning set. A supply-air outlet is arranged below an air-conditioning heat collection chamber, the periphery of the air delivery duct is wrapped by an elastic heat-insulation layer, and the central section of the air delivery duct is provided with an expansion chamber by means of a bell-mouthed variable diameter structure so as to form a variable capacitance type noise reduction structure. By using the technical scheme provided by the invention, the length of the air delivery duct is prolonged in the air-conditioning seat, noise transmitted to the supply-air outlet is reduced, and a noise abatement effect is exhibited especially by use of the air channel structure of a variable chamber.
Description
Technical field
The invention belongs to air-conditioning unit structure design field used for rail vehicle, relate to a kind of air-conditioner set of low noise, especially a kind of top-mounted air conditioner unit air-supply structure used for rail vehicle.
Background technology
Along with the continuous progress in epoch, the theory of environmental protection and energy saving and green health has become the important requirement of the modern society of high development.Nowadays, subway becomes the preferred traffic instrument of people's trip gradually, but the noise in guideway vehicle is always higher.
For roof-mounted air-condition unit, its structure is see Fig. 1 and Fig. 2: the main composition of air-conditioner set comprises the compressor 8 be arranged in air-conditioner housing, condenser 6, throttling device and evaporator 4 and supply ventilating fan 1 and exhaust fan 7, compressor 8 is main origin of heat, form air-conditioning heat collector cavity 5, exhaust fan is arranged on this air-conditioning heat collector cavity 5 one end, discharges for the heat will produced in process of refrigerastion; Evaporator side forms the cold chamber 1 of air-conditioning collection.Making degradation of energy to prevent the air after freezing from carrying out heat transfer through thermal source, the supply ventilating fan 1-1 of conveying cold air and air outlet 3 being arranged on one end, air-conditioning collection cold chamber 1, thus the air after refrigeration is directly discharged by air outlet.Adopt said structure noise larger, the analysis of causes is as follows: the tuyere of supply ventilating fan 1-1 is directly communicated with air outlet 3, the noise of supply ventilating fan 1-1 High Rotation Speed is directly delivered in the compartment of guideway vehicle, and supply ventilating fan vibration in the course of the work also passes to compartment by air outlet 3, adds the superposition of noise.
In prior art, in order to reduce the noise of supply air duct, application number be 201220427970.6 Chinese patent disclose a kind of shock attenuation unit of air-conditioning duct, it is one or more layers rubber layer coated in the outside of air-conditioning duct, this rubber layer can along with the vibration generation deformation of air-conditioning duct, thus cushion the vibration of air-conditioning duct to a certain extent, there is the effect reducing air-conditioning duct vibration, reduce the noise of air-conditioning.It reduces noise by the vibration reducing air channel, this structure is applicable to the noise reduction of supply air duct in compartment, and for roof-mounted air-condition unit, its inner space is narrow and small, almost directly and the outlet of supply ventilating fan 1-1, above-mentioned patented technology is not obviously suitable for the air-supply structure of roof-mounted air-condition to air outlet 3.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of air-conditioner set air-supply structure used for rail vehicle, when not changing vehicle air channel and arranging, by freely the arranging of air-conditioning inside subject structure, to breach in prior art air delivery duct without the conventional design of thermal source, air delivery duct is added in air-conditioning inside, and carried out air delivery duct to eliminate the noise design, thus reduce the noise of air-conditioner set.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of air-conditioner set air-supply structure used for rail vehicle, comprise the supply ventilating fan be arranged in the cold chamber of air-conditioning collection and the air delivery duct be connected between supply ventilating fan tuyere and the air outlet of air-conditioner set, described air outlet is arranged on the below of air-conditioning heat collector cavity, and periphery, described air delivery duct is wrapped up in and tied up elastic heat preserving layer, middle part and be provided with by the variable-diameter structure of bell mouth shape and expand chamber and form variable displacement type noise-reducing structure.
Preferably, in described air-conditioning heat collector cavity, be provided with compressor and exhaust fan, the dividing plate of insulation be set between air delivery duct and exhaust fan, form heat barrier structure.
Described supply ventilating fan by half flexible compound damping base and air-conditioner housing predetermincd tension spacing.
Described half flexible compound damping base comprises steel bottom, flexible intermediate layer and hard rubber layers, forms elastic shock attenuation mechanism between supply ventilating fan and air-conditioner housing.
In technique scheme, on the basis not changing existing air channel structure, flexible arrangement is carried out to the structure of air-conditioner set, is provided with air delivery duct in the below of exhaust fan, breaches conventional design, and wrap up in the outside of air delivery duct and tie up elastic heat preserving layer.Air delivery duct the distance extending on the one hand air-supply is set, reduce the energy of vibration of noise transfer ripple, adopt the structure design becoming chamber on the other hand, further abatement acoustic vibration energy.At the arranged outside elastic heat preserving layer of air delivery duct, reduce degradation of energy on the one hand, elastomeric material can also prevent air delivery duct to be passed in compartment by energy of vibration by air-conditioner housing on the other hand, plays the effect of noise reduction.
The beneficial effect adopting technique scheme to produce is: (1) the present invention sets up and extends the length of air delivery duct in air-conditioner set, reduces the noise being passed to air outlet, especially adopts the air channel structure becoming chamber to serve the effect of noise elimination; (2) in further improved plan, supply ventilating fan reduces the transmission of noise from soruce of vibration by half flexible compound damping base, makes passenger have a good environment by bus; (3) structure of the present invention is simple, and noise reduction is obvious, and by arranging elastic heat preserving layer, refrigerating capacity reduction is less is about 2%; And adopt structure of the present invention without the need to improving the air channel structure in existing compartment, as long as by the housing of air-conditioner set centrally Rotational Symmetry 180 °, air outlet can be communicated with original air channel structure.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of air-supply structure in prior art;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is air-supply structure schematic diagram in the present invention;
Fig. 4 is the schematic top plan view of air delivery duct in Fig. 3;
Wherein, 1, the cold chamber of air-conditioning collection, 1-1, supply ventilating fan, 2, air delivery duct, 2-1, expand chamber, 3, air outlet, 4, evaporator, 5, air-conditioning heat collector cavity, 6, condenser, 7, exhaust fan, 8, compressor.
Detailed description of the invention
See Fig. 3 and Fig. 4, air-conditioner set of the present invention comprises compressor 8, condenser 6, evaporator 4, is arranged on the exhaust fan 7 of compressor 8 side and is arranged on the supply ventilating fan 1-1 of evaporator 4 side, air-conditioning heat collector cavity 5 is equivalent in compressor 8 and condenser 6 place chamber, exhaust fan 7 is arranged in heat collector cavity, evaporator 4 place chamber is equivalent to the cold chamber 1 of air-conditioning collection, and supply ventilating fan 1-1 is arranged in the cold chamber 1 of air-conditioning collection.Air-supply structure described in the present embodiment comprises the air delivery duct 2 be arranged between supply ventilating fan 1-1 in the cold chamber 1 of air-conditioning collection and the air outlet 3 being connected to supply ventilating fan 1-1 tuyere and air-conditioner set, described air outlet 3 is arranged on the below of air-conditioning heat collector cavity 5, and periphery, described air delivery duct 2 is wrapped up in and tied up elastic heat preserving layer, middle part and be provided with by the variable-diameter structure of bell mouth shape and expand chamber 2-1 and form variable displacement type noise-reducing structure.Expanding 2-1 two ends, chamber is connected with the agent structure in air channel by the variable-diameter structure of bell mouth shape.
The present invention breaches conventional design, is provided with air delivery duct in the below of exhaust fan, and this air delivery duct is through hot chamber.Between described air delivery duct 2 and exhaust fan 7, dividing plate is set, and wraps up in outside, air delivery duct 2 and tie up elastic heat preserving layer.Described elastic heat preserving layer by fastener and air-conditioner housing spacing.Elastic heat preserving layer adopts in prior art has elastomeric warm material.The effect of elastic heat preserving layer: one is insulation, prevents the refrigerating capacity in air delivery duct from losing; Two is dampings, prevents air delivery duct from soruce of vibration is passed to air-conditioner housing.
Described supply ventilating fan 1-1 by half flexible compound damping base and air-conditioner housing predetermincd tension spacing, described half flexible compound damping base comprises steel bottom, flexible intermediate layer and hard rubber layers, forms elastic shock attenuation mechanism between supply ventilating fan 1-1 and air-conditioner housing.The Thickness Ratio of steel bottom, flexible intermediate layer and hard rubber layers is 1:2 ~ 3:2 ~ 3, and flexible intermediate layer adopts flexible material of the prior art, as polyurethane material.Half flexible compound damping base reduces the vibration of supply ventilating fan further.
Housing due to air-conditioner set is symmetric design, during installation, only the housing symmetrical rotary 180 ° of former air-conditioner set, air outlet 3 can need be docked with the air channel in compartment, air channel in compartment is without the need to through any change, therefore, adopt the present embodiment, without the need to improving the air channel in the agent structure of air-conditioner set and compartment.
In same place, its noise is detected to air-conditioner set of the prior art and the air-conditioner set of the present embodiment adopting new air-supply structure, in prior art air-conditioner set coordinate with air channel, compartment after noise at about 72 decibels, the air-conditioner set noise of the present embodiment is at about 68 decibels, and the noise of air-conditioner set obviously reduces.
Adopt the wind pushing mechanism of the present embodiment, the loss of refrigeration capacity at air outlet place is about 2%, and air loss is about 10Pa, and above result shows, after increasing air delivery duct 2, loss of refrigeration capacity and air loss are very little.
To sum up, the present embodiment, to cold and the less situation of air loss, reduces the noise in compartment by a relatively large margin, makes passenger have good environment by bus.
Claims (4)
1. an air-conditioner set air-supply structure used for rail vehicle, comprise the air delivery duct (2) be arranged between supply ventilating fan (1-1) in the cold chamber of air-conditioning collection (1) and the air outlet (3) being connected to supply ventilating fan (1-1) tuyere and air-conditioner set, it is characterized in that described air outlet (3) is arranged on the below of air-conditioning heat collector cavity (5), described air delivery duct (2) periphery is wrapped up in and is tied up elastic heat preserving layer, middle part and be provided with by the variable-diameter structure of bell mouth shape and expand chamber (2-1) and form variable displacement type noise-reducing structure.
2. air-conditioner set air-supply structure used for rail vehicle according to claim 1, it is characterized in that being provided with compressor (8) and exhaust fan (7) in described air-conditioning heat collector cavity (5), the dividing plate of insulation is set between air delivery duct (2) and exhaust fan (7), forms heat barrier structure.
3. air-conditioner set air-supply structure used for rail vehicle according to claim 1, it is characterized in that described supply ventilating fan (1-1) by half flexible compound damping base and air-conditioner housing predetermincd tension spacing.
4. air-conditioner set air-supply structure used for rail vehicle according to claim 3, it is characterized in that described half flexible compound damping base comprises steel bottom, flexible intermediate layer and hard rubber layers, between supply ventilating fan (1-1) and air-conditioner housing, form elastic shock attenuation mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655375.6A CN105253156B (en) | 2015-10-12 | 2015-10-12 | The air-supply structure of air-conditioner set used for rail vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655375.6A CN105253156B (en) | 2015-10-12 | 2015-10-12 | The air-supply structure of air-conditioner set used for rail vehicle |
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| Publication Number | Publication Date |
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| CN105253156A true CN105253156A (en) | 2016-01-20 |
| CN105253156B CN105253156B (en) | 2018-06-29 |
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| CN201510655375.6A Active CN105253156B (en) | 2015-10-12 | 2015-10-12 | The air-supply structure of air-conditioner set used for rail vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997968A (en) * | 2021-11-19 | 2022-02-01 | 中车大连机车研究所有限公司 | Horizontal guest room air conditioner with guiding device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006256383A (en) * | 2005-03-15 | 2006-09-28 | Nippon Sharyo Seizo Kaisha Ltd | Railway vehicle |
| CN201844514U (en) * | 2010-11-02 | 2011-05-25 | 南车株洲电力机车有限公司 | Air condition overlong air supply duct |
| KR20110077078A (en) * | 2009-12-30 | 2011-07-07 | 현대로템 주식회사 | Cool and hot air supply structure for driving room of railway vehicle |
| CN203126456U (en) * | 2013-01-23 | 2013-08-14 | 石家庄国祥运输设备有限公司 | Cab ventilation device with electrical heating function |
| CN203318424U (en) * | 2013-05-24 | 2013-12-04 | 江苏新誉空调***有限公司 | Air supply unit device applied to subway cab |
| CN203372244U (en) * | 2013-06-27 | 2014-01-01 | 南车青岛四方机车车辆股份有限公司 | Cab air conditioning unit for urban rail vehicle |
| CN203391778U (en) * | 2013-06-29 | 2014-01-15 | 南车南京浦镇车辆有限公司 | Noise elimination structure of cab delivery conduit of railway vehicle |
| CN205044747U (en) * | 2015-10-12 | 2016-02-24 | 南车南京浦镇车辆有限公司 | Low noise air conditioning unit for rail vehicle |
-
2015
- 2015-10-12 CN CN201510655375.6A patent/CN105253156B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006256383A (en) * | 2005-03-15 | 2006-09-28 | Nippon Sharyo Seizo Kaisha Ltd | Railway vehicle |
| KR20110077078A (en) * | 2009-12-30 | 2011-07-07 | 현대로템 주식회사 | Cool and hot air supply structure for driving room of railway vehicle |
| CN201844514U (en) * | 2010-11-02 | 2011-05-25 | 南车株洲电力机车有限公司 | Air condition overlong air supply duct |
| CN203126456U (en) * | 2013-01-23 | 2013-08-14 | 石家庄国祥运输设备有限公司 | Cab ventilation device with electrical heating function |
| CN203318424U (en) * | 2013-05-24 | 2013-12-04 | 江苏新誉空调***有限公司 | Air supply unit device applied to subway cab |
| CN203372244U (en) * | 2013-06-27 | 2014-01-01 | 南车青岛四方机车车辆股份有限公司 | Cab air conditioning unit for urban rail vehicle |
| CN203391778U (en) * | 2013-06-29 | 2014-01-15 | 南车南京浦镇车辆有限公司 | Noise elimination structure of cab delivery conduit of railway vehicle |
| CN205044747U (en) * | 2015-10-12 | 2016-02-24 | 南车南京浦镇车辆有限公司 | Low noise air conditioning unit for rail vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997968A (en) * | 2021-11-19 | 2022-02-01 | 中车大连机车研究所有限公司 | Horizontal guest room air conditioner with guiding device |
| CN113997968B (en) * | 2021-11-19 | 2024-05-24 | 中车大连机车研究所有限公司 | Horizontal guest room air conditioner with flow guiding device |
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| Publication number | Publication date |
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| CN105253156B (en) | 2018-06-29 |
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