CN203450372U - A bottom-supply and top-return air supply system for a civil single-channel passenger plane cabin - Google Patents
A bottom-supply and top-return air supply system for a civil single-channel passenger plane cabin Download PDFInfo
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- CN203450372U CN203450372U CN201320416482.XU CN201320416482U CN203450372U CN 203450372 U CN203450372 U CN 203450372U CN 201320416482 U CN201320416482 U CN 201320416482U CN 203450372 U CN203450372 U CN 203450372U
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Abstract
The utility model discloses a bottom-supply and top-return air supply system for a civil single-channel passenger plane cabin. The bottom-supply and top-return air supply system comprises air supply ports and an air return port; the air supply ports are arranged on the two sides of the lower portion of the passenger plane cabin; the air return port is disposed at the top of the passenger plane cabin; the air supply ports are connected with air supply pipes of an environmental control system of the passenger plane cabin; the air return port is connected with an air return pipe; and airflow channels are formed from the air supply ports on the two sides of the lower portion of the passenger plane cabin to a passenger area in the passenger plane cabin and then to the air return port at the top of the passenger plane cabin. Compared with the conventional airflow structure of the civil single-channel passenger plane cabin, the airflow structure prevents retention of local air caused by obvious vortex flow formed in the passenger cabin, can exhaust pollutant more efficiently and reduce mutual interference of substances emitted by passengers, and thus improves the air quality of the cabin. The system can also reduce the fresh air processing energy consumption of the environmental control system of the passenger plane by reducing the air supply demand of the civil passenger plane.
Description
Technical field
The utility model relates to the Airflow Pattern Designing of seating plane passenger cabin, is specifically applicable to build healthy, comfortable and energy-conservation cabin environment.
Background technology
The whole world has 2,000,000,000 people of surpassing to select airplane trip every year at present, and this numeral also will constantly increase.Along with the continuous increase of air-service passenger number, the problem of being brought by airplane also will constantly rise.Passenger plane passenger cabin environment is a special environment space, is different from general Building Indoor Environment.Space-closed, narrow and small in aircraft passenger compartment, density of personnel is intensive, very easily causes the bamboo telegraph of various communicable diseases.Good air ambient is the important guarantee of passenger life safety, and most important to resisting the fast propagation of various communicable diseases.Therefore, the environmental control system of being responsible for the good main cabin of construction air ambient must reasonably be designed, and especially in environmental control system, is responsible for building the air current composition system of healthy comfortable cabin environment.Meanwhile, the new wind processing in environmental control system air-supply process is also one of main energy consumption source of passenger plane.Correlative study shows, the new wind of every processing 1kW load need to consume the energy of whole environmental control system 20kW.How to improve main cabin air-supply utilization ratio, reduce air output, very important to the energy consumption of reduction passenger plane.
Main cabin air current composition is formed by cabin temperature, humidity and air-flow velocity combined action.Good air current composition is exactly to guarantee that temperature field in cabin and velocity field distribute to be applicable to the requirement of Human Physiology health, reduces propagation and the diffusion of Cabin contamination thing, reduces the energy resource consumption of seating plane environmental control system simultaneously.Airliner passenger cabin air current composition system generally adopts mixed ventilation system at present.So-called mixed ventilation, be that each air outlet that wind pushing air is assigned to nacelle top or sidewall by cabin air distribution system is sent in passenger cabin, air fully mixes, flows and ventilation in passenger cabin, to water down the various nuisances in cabin and to take away occupant and the heat radiation of below deck equipment, finally from two bottom sides return air inlet, discharge.Seating plane passenger cabin mixed ventilation mainly contains three kinds, concrete as shown in Fig. 1 (a), Fig. 1 (b) and Fig. 1 (c), wherein Fig. 1 (a) shows cabin sidewall air outlet air-supply, the air outlet of this air-supply is positioned on the sidewall of baggage rack below, air port is near apart from passenger, gas flow jet flow process is short, represents that type is as MD-82 etc.; Fig. 1 (b) shows main cabin top supplying air mouth air-supply, this air-supply requires air-flow to have longer jet flow process, therefore air supply velocity is larger, be sitting near the passenger in passageway and may feel obvious blowing feeling, but be sitting in passenger's fresh air that possibility anaesthesia circulates of position near the window, represent that type has Boeing737-200, A320 etc.; Fig. 1 (c) shows top, main cabin and sidewall has air outlet, blows by certain allocation proportion in two air ports, place simultaneously, represents that type is as Boeing787.Yet above-mentioned mixed ventilation gas system easily forms eddy current convolution in main cabin, drafting efficiency is lower, causes local air quality to decline, and easily causes diffusion, the propagation of pollutants.
For solving the drawback when fore cabin air current composition, there is document (Zhang, et al.2010.Building and Environment, 45 (4): 907-915.) propose to use for reference current building field displacement air-supply air current composition, take passageway, aircraft corridor is air outlet, take air port, top as air outlet, pollutants is discharged fast from main cabin, guarantee that main cabin has good air quality.Yet, air outlet is installed in aircraft passageway, can the personnel's Ambulatory Activity in cabin be brought inconvenience, also easily contaminated.This kind of air current composition is more suitable in the passenger plane of binary channel type simultaneously.For domestic conventional single channel passenger plane, adopt passageway air-supply can run into the problem the same with top supplying air, strong near passageway passenger's blowing feeling, the passenger of position near the window lacks fresh air.Therefore in conjunction with the demand of the conventional single channel passenger plane of current China, the main cabin air current composition of reasonable more need to be proposed.
Utility model content
For above-mentioned prior art, the utility model provide a kind of be applicable to civilian single channel passenger plane passenger cabin under serve back efficient supply air system, this air current composition not only can guarantee comfort level in main cabin and good air quality, and can improve the energy utilization efficiency that cabin flow field distributes, reduce civilian main cabin air output demand, realize the energy-saving and emission-reduction of environmental control system.The utility model be a kind of efficiently, be applicable to the air current composition of the conventional civilian single channel passenger plane passenger cabin of China.
In order to solve the problems of the technologies described above, the utility model is a kind of be applicable to civilian single channel passenger plane passenger cabin under serve back efficient supply air system, comprise air outlet and return air inlet, described air outlet is arranged on both sides, passenger plane passenger cabin bottom, described return air inlet is arranged on passenger plane passenger cabin top, described air outlet is connected with the environmental control system air supply duct of passenger plane passenger cabin, described return air inlet is connected with return air duct, and the passenger area in the air outlet process passenger plane passenger cabin of both sides, passenger plane passenger cabin bottom to the return air inlet at passenger plane passenger cabin top has formed gas channel.
The utility model be applicable to civilian single channel passenger plane passenger cabin under serve back efficient supply air system, wherein, described air outlet adopts breaker plate, the air output of air outlet is 8L/(s people), wind pushing temperature is 21 ℃.
The utility model be applicable to civilian single channel passenger plane passenger cabin under serve back efficient supply air system, wherein, described return air inlet consists of many rounds eye, described many rounds eye be have on the plate face of two parallel slits, assemble one formed with the orifice plate press strip of two row eyelets, article two, the transversal surface of parallel slit is splayed, return air gas channel consists of described two parallel slits, return air air flow line from splayed bottom to splayed top.
Compared with prior art, the beneficial effects of the utility model are:
Commonly use the air current composition (mixed ventilation system) of civilian single channel passenger plane passenger cabin compares with China, under this, serve back air current composition and can in main cabin, not form the delay that obvious vortex flow causes local air, thing more efficiently can decontaminate, the sick phase mutual interference that reduces substance emitting between passenger, thus cabin air quality improved.It has higher flowed energy utilization ratio simultaneously, can reduce by reducing civilian main cabin air output demand the new wind of passenger plane environmental control system and process energy consumption.
For verifying the beneficial effect of serving back air current composition under this, by a geometric ratio single channel main cabin solid model, carry out experiment measuring, utilize observed data to compare conventional air tissue and the utility model air current composition.The concrete content of measuring comprises: utilize the permanent source of tracer gas method to measure main cabin air output; Utilize the age of air of tracer gas attenuation method passenger breathing area; Utilize the DA650-3TV & TR-92T ultrasonic wind velocity indicator that Japanese Kaijo manufactures to measure passenger's wind speed profile around; Utilize the temperature traverse in silver-plated T-shaped thermocouple measurement main cabin.
In experimentation, according to international standard ASHRAE STANDARD161-2007 suggestion, the air output of three kinds of conventional air tissues is all set as 10L/(s people).And be under checking, to serve back the high efficiency of air current composition, its air output is set as 8L/(s people).
What Fig. 3 represented is the passenger respiratory region age of air distribution of different air current compositions.Age of air refers to that air particle is from entering room to arriving indoor certain time of experiencing of point.The air of this point of the less expression of age of air is fresher.As can be seen from the figure, under to serve back air current composition age of air minimum, there is best fanning effect and pollutants expulsion efficiency.
Under the different air current compositions that Fig. 4 represents, passenger's ambient wind speed distributes.In ASHRAE STANDARD161-2007 standard-required main cabin, passenger's sensitive part wind speed can not be greater than 0.3m/s.As can be seen from the figure, under serve back air current composition passenger around wind speed substantially meet standard-required, and bulk velocity is lower than other air current composition.This main cabin blowing feeling of serving back air current composition under showing is little, more comfortable.
According to temperature measurement result, can calculate the power efficieney of different air current compositions.Power efficieney is the index that the energy of evaluation air current composition utilizes validity, and it has reflected that the energy of air current composition system utilizes situation.Result shows, the power efficieney of three kinds of conventional air tissues is 0.8 left and right, and under serve back air current composition power efficieney be 1.4.Under this explanation, serve back air current composition and can take away more efficiently the heat that passenger distributes.
Experimental result to sum up, serves back air current composition can offer the best air quality in main cabin, the wind speed that meets standard-required and the highest energy utilization efficiency under the utility model proposes.Can reduce by 20% main cabin air output demand, reduce the new wind of 20% passenger plane environmental control system and process energy consumption simultaneously.
Accompanying drawing explanation
Fig. 1 (a), Fig. 1 (b) and Fig. 1 (c) are three kinds of typical seating plane passenger cabin air current composition schematic diagrams;
Fig. 2 air current composition schematic diagram of the present utility model;
The age of air of human body respiratory region under the different air current compositions of Fig. 3;
Under the different air current compositions of Fig. 4, passenger's ambient wind speed distributes;
Fig. 5 is the structural representation of passenger plane passenger cabin bottom air outlet in the utility model;
Fig. 6-1st, passenger plane passenger cabin top return air inlet side cut away view in the utility model;
Fig. 6-2nd, the front schematic view of return air inlet shown in Fig. 6-1.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is described in further detail.
As shown in Figure 2, a kind of being applicable to of the utility model served back efficient supply air system under civilian single channel passenger plane passenger cabin, comprise air outlet 2-1 and return air inlet 2-2, described air outlet 2-1 is arranged on both sides, passenger plane passenger cabin bottom, described return air inlet 2-2 is arranged on passenger plane passenger cabin top, described air outlet is connected with passenger plane passenger cabin environmental control system air supply duct, described environmental control system air supply duct blows out the air after air-conditioning bag is processed by air outlet, send into the passenger area in passenger plane passenger cabin, the circulating air of described air after air-conditioning bag is processed after by 50% fresh air and 50% filtration treatment forms, described return air inlet is connected with passenger plane passenger cabin environmental control system return air duct, passenger area in the air outlet process passenger plane passenger cabin of both sides, passenger plane passenger cabin bottom to the return air inlet at passenger plane passenger cabin top has formed gas channel.
Air after air-conditioning bag is processed is sent into passenger plane passenger cabin by the air outlet 2-1 of both sides, passenger plane passenger cabin bottom, air spreads, flows and ventilation in passenger plane passenger cabin, water down the various pollutantss in cabin, the waste heat of simultaneously taking away occupant and below deck equipment is remaining wet, finally from the return air inlet 2-2 at passenger cabin top, discharges.Air current flow situation in the cabin that this air supply mode forms is as shown in the arrow in Fig. 2.Can find out, different from the mixed ventilation of at present " above sending next time " is, the air current composition of the utility model " under serve back " does not form in both sides, cabin and does not pollute the vortex that thing is detained, but by after passenger area, discharges rapidly from the return air inlet 2-2 at top, main cabin.With the passageway air-supply proposing in document, compare, air current composition of the present utility model does not take the public activity region in main cabin, less on the impact of existing main cabin environmental control system inner blower structure.
As shown in Figure 5, the air outlet of both sides, passenger plane passenger cabin bottom can adopt breaker plate, can realize balanced ventilation with lower wind speed, and recommendation air output is 8L/(s people), wind pushing temperature is 21 ℃.Air outlet is connected with environmental control system air supply duct, for the air (circulating air after 50% fresh air+50% filtration treatment) after air-conditioning bag is processed is sent into cabin environment.
As shown in Fig. 6-1 and Fig. 6-2, the return air inlet at top, main cabin adopts above-mentioned strip slot to coordinate the structure of eyelet, be that described return air inlet consists of many rounds eye, described many rounds eye be have on the plate face of two parallel slits, assemble one formed with the orifice plate press strip of two row eyelets, article two, the transversal surface of parallel slit is splayed, return air gas channel consists of described two parallel slits, return air air flow line from splayed bottom to splayed top, as shown in the arrow in Fig. 6-1.Return air inlet is connected with return air duct, for discharging fast from cabin environment, carries wet air more than pollutants and waste heat.
Technical solutions of the utility model can be take existing civilian single channel passenger plane environmental control system as basis, by the transformation of air supply duct in environmental control system and return air duct is realized.
Although the utility model is described in conjunction with figure above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the situation that not departing from the utility model aim, can also make a lot of distortion, within these all belong to protection of the present utility model.
Claims (3)
- One kind be applicable to civilian single channel passenger plane passenger cabin under serve back efficient supply air system, comprise air outlet and return air inlet, it is characterized in that, described air outlet is arranged on both sides, passenger plane passenger cabin bottom, described return air inlet is arranged on passenger plane passenger cabin top, described air outlet is connected with the environmental control system air supply duct of passenger plane passenger cabin, and described return air inlet is connected with return air duct; Passenger area in the air outlet process passenger plane passenger cabin of both sides, passenger plane passenger cabin bottom to the return air inlet at passenger plane passenger cabin top has formed gas channel.
- 2. be applicable to according to claim 1 civilian single channel passenger plane passenger cabin under serve back efficient supply air system, wherein, described air outlet adopts perforated plate construction, the air output of air outlet is 8L/(s people), wind pushing temperature is 21 ℃.
- 3. be applicable to according to claim 1 civilian single channel passenger plane passenger cabin under serve back efficient supply air system, wherein, described return air inlet consists of many rounds eye, described many rounds eye be have on the plate face of two parallel slits, assemble one formed with the orifice plate press strip of two row eyelets, article two, the transversal surface of parallel slit is splayed, return air gas channel consists of described two parallel slits, return air air flow line from splayed bottom to splayed top.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416482.XU CN203450372U (en) | 2013-07-12 | 2013-07-12 | A bottom-supply and top-return air supply system for a civil single-channel passenger plane cabin |
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| CN201320416482.XU CN203450372U (en) | 2013-07-12 | 2013-07-12 | A bottom-supply and top-return air supply system for a civil single-channel passenger plane cabin |
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| CN203450372U true CN203450372U (en) | 2014-02-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359291A (en) * | 2013-07-12 | 2013-10-23 | 天津大学 | Lower-supplying upper-returning efficient airflow organization suitable for civil single-passage passenger plane cabin |
| CN105292493A (en) * | 2015-10-30 | 2016-02-03 | 天津大学 | Air conditioning system with downward-feeding and upward-returning airflow channel suitable for passenger plane cabin |
| CN108248869A (en) * | 2018-02-06 | 2018-07-06 | 天津大学 | A kind of displacement supply air system suitable for seating plane |
-
2013
- 2013-07-12 CN CN201320416482.XU patent/CN203450372U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359291A (en) * | 2013-07-12 | 2013-10-23 | 天津大学 | Lower-supplying upper-returning efficient airflow organization suitable for civil single-passage passenger plane cabin |
| CN105292493A (en) * | 2015-10-30 | 2016-02-03 | 天津大学 | Air conditioning system with downward-feeding and upward-returning airflow channel suitable for passenger plane cabin |
| CN105292493B (en) * | 2015-10-30 | 2018-04-03 | 天津大学 | Air conditioning system with downward-feeding and upward-returning airflow channel suitable for passenger plane cabin |
| CN108248869A (en) * | 2018-02-06 | 2018-07-06 | 天津大学 | A kind of displacement supply air system suitable for seating plane |
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Granted publication date: 20140226 |