CN216069979U - Ventilation system meeting dynamic thermal comfort - Google Patents
Ventilation system meeting dynamic thermal comfort Download PDFInfo
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- CN216069979U CN216069979U CN202122239001.XU CN202122239001U CN216069979U CN 216069979 U CN216069979 U CN 216069979U CN 202122239001 U CN202122239001 U CN 202122239001U CN 216069979 U CN216069979 U CN 216069979U
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Abstract
The utility model discloses a ventilation system meeting dynamic thermal comfort, and belongs to the field of ventilation of mobile vehicles. The utility model introduces a tail end air supply device based on a turbine technology into a carriage of a mobile vehicle, and utilizes turbocharging to ensure that air entering an air duct from an air inlet is sent out at a higher speed through a slit air outlet ring, thereby realizing air multiplication; through good airflow organization, air retention is reduced, convective heat transfer between passengers and air is enhanced, air supplied by an air conditioner is uniformly delivered to a target area, the temperature in a carriage is effectively reduced, and the thermal comfort of the passengers is improved; enhancing the uniform mixing of the cold air with the air in the cabin by enhancing the air turbulence in the target area; the power of the terminal air supply device is intelligently switched according to the number of people in the carriage, air supply according to requirements is achieved, and the dynamic thermal comfort of passengers is improved. The turbine main machine part of the tail end air supply device is arranged in the air supply pipeline, and the air outlet ring part is arranged in the carriage, so that the tail end air supply device is compact in structure, reasonable in arrangement, safe and convenient.
Description
Technical Field
The utility model belongs to the field of ventilation of mobile vehicles, and particularly relates to a ventilation system meeting dynamic thermal comfort.
Background
With the rapid development of urbanization, urban population is continuously accumulated, and the mobile vehicle provides convenience for citizens to go out. While the majority of passengers enjoy the convenience of the mobile vehicle, the heat comfort problem inside the mobile vehicle is also more and more concerned. Due to the particularities of mobile vehicles (e.g., limited space, frequent movement, etc.), mobile vehicles differ from building interior thermal comfort in that dynamic thermal comfort is required.
The subway is taken as a mobile vehicle which is popular with the majority of citizens, and different from other vehicles such as planes, trains and the like, the passenger flow is large, the personnel are dense, and the instant thermal comfort feeling of passengers is strong, so that the dynamic thermal comfort of the human body needs to be considered. The dynamic thermal comfort is closely related to the air flow organization in the subway carriage, and the air supply mode of the subway carriage can directly influence the air flow organization and the temperature field distribution in the carriage. The air supply mode of the air conditioner is difficult to meet the requirement of thermal comfort, the air flow organization in the carriage is unreasonable, the refrigeration effect is poor, the cooling and heating in the carriage are uneven, and the thermal comfort is poor. In order to overcome the defects of the air supply mode, an accurate air supply mode with good air flow organization design is provided. The accurate air supply is to perform directional air supply according to needs aiming at a specific target area. Research shows that under a dynamic environment, the most sensitive parts of human body thermal comfort are the head part, the back part and the chest part, so that for subway carriage passengers, the head part, the back part and the chest part are specific target areas, and if accurate directional air supply is carried out on the specific target areas, the thermal comfort of the passengers can be improved, and the energy conservation is facilitated.
The turbocharging technology is a technology for improving the air intake capacity of an engine, the air intake quantity of the engine can be supercharged and sent out by introducing the turbocharging technology into a tail end air supply device, and peripheral airflow flows due to jet flow, so that 'air multiplication' is realized. Compared with the conventional air supply device, the tail end air supply device introduced with the technology generates airflow with larger wind speed and is more stable.
Disclosure of Invention
The dynamic thermal comfort requirement problem of the mobile vehicle is solved, and particularly the problems of uneven cooling and heating, poor thermal comfort and low refrigeration efficiency caused by poor air flow organization in a subway carriage due to an air supply mode of the subway are solved. The utility model aims to provide a ventilation system meeting dynamic thermal comfort, which introduces a tail end air supply device based on a turbine technology into a carriage of a mobile vehicle, utilizes turbocharging to enable air entering an air duct from an air inlet to be sent out at a higher speed through a slit air outlet ring so as to drive surrounding air flow to move and realize 'air multiplication'; through good airflow organization, air retention is reduced, convective heat transfer between passengers and air is enhanced, air supplied by an air conditioner is uniformly delivered to a target area, the temperature in a carriage is effectively reduced, and the thermal comfort of the passengers is improved; by enhancing the air disturbance of the target area, the uniform mixing of the cold air and the air in the carriage is enhanced, so that the air sent to passengers meets the dynamic thermal comfort requirement; the power of the tail end air supply device is intelligently switched according to the number of people in the carriage, so that air supply according to the requirement is realized, and the dynamic thermal comfort of passengers is met; the turbine main machine part of the tail end air supply device is arranged in the air supply pipeline, the air outlet ring part is arranged in the carriage, and the two parts are connected at the middle shaft of the carriage by using the bayonet and are installed at intervals, so that the tail end air supply device is compact in structure, reasonable in arrangement, safe and convenient.
The purpose of the utility model is realized by the following technical scheme.
The utility model discloses a ventilation system meeting dynamic thermal comfort, which comprises an air-conditioning refrigerating unit, an air supply main pipe, an air supply unit, an air return unit and a tail end air supply device. The air conditioning unit is used for providing refrigerating air for the carriage; the air supply main pipe is used for conveying the processed cold air; the air supply unit comprises a louver air supply outlet and an air supply branch pipe; the air return unit comprises a shutter air return inlet and an air return branch pipe; and the tail end air supply device adopts turbocharging to realize tail end air supply. The tail end air supply device is used for supplying air to a target area accurately, enhancing local air flow disturbance and improving thermal comfort, and comprises an air inlet, a turbine, a motor, a turbine host part, an air outlet part connecting part and an air outlet ring. The turbine is selected according to the required maximum air supply volume of the carriage, and intelligent switching is performed according to the requirements of passengers.
The turbine main machine part of the tail end air supply device is arranged in an air supply pipeline, and the air outlet ring is fixedly arranged at the top of the carriage.
The air conditioning system is characterized in that the air conditioning unit processes air, the air is conveyed by the air supply main pipe and is sent into the compartment of the mobile vehicle from the air supply unit, and a part of air in the compartment of the mobile vehicle enters the air conditioning unit through the air return unit for reprocessing; the cold air in the air supply main pipe enters through the air inlet of the tail end air supply device, the turbine is driven to realize turbocharging under the action of the motor, and then the cold air is sent out from the slit air outlet ring, so that the strong jet flow of the cold air is realized. The tail end air supply device based on the turbine technology is introduced into a carriage of the mobile vehicle, the turbine main machine part of the tail end air supply device is introduced into an air supply pipeline, an air outlet ring part is arranged in the carriage, cold air in the air supply pipeline enters from an air inlet of the turbine main machine part and is sent out at a high speed through the air outlet ring with a small slit, surrounding air flow is driven to move, and air multiplication is achieved; by enhancing the air disturbance of the target area, the uniform mixing of the cold air and the air in the carriage is enhanced, so that the dynamic thermal comfort requirement of passengers is met; the defects caused by air retention are reduced, the convective heat transfer between passengers and air is enhanced, the air supply of the air conditioner is uniformly delivered to a target area, the temperature in a carriage is effectively reduced, and the thermal comfort of the passengers is improved; the power of the tail end air supply device is intelligently switched according to the number of people in the carriage, so that air supply according to requirements is realized.
The very small slit means a slit width of 1-2 mm.
In order to be safe and save space, the air supply pipeline is preferably tightly attached to the ceiling of the carriage, and the pipe orifice at the joint of the air pipe and the turbine is arranged in a circular shape and is arranged in a rectangular shape with the pipe orifices at the joints of the louver air supply opening and the louver air return opening.
In order to adjust the air supply angle and change the air flow diffusion direction, the louver air supply outlet is preferably a double-layer louver air outlet.
In order to adjust the air volume, it is preferable that an air volume adjusting valve for adjusting the air volume be disposed in the double-layer louver air outlet.
In order to adjust the return air direction, the return air inlet is preferably a single-layer louver air inlet.
For the convenience of installation of the tail end air supply device, the tail end air supply device preferably comprises a turbine main body part and a tail end air outlet part.
In order to adapt to the carriage structure and facilitate installation, as the optimization, the separation part of the turbine host part and the tail end air outlet part of the tail end air supply device is designed into a bayonet shape which facilitates disassembly and assembly, the host part and the tail end air outlet part are connected through the bayonet, the split design of the host part and the tail end air outlet part is further realized, and the installation position of the tail end air outlet is adjusted according to the layout structure of the carriage of the mobile vehicle, so that the disassembly and assembly are facilitated.
In order to realize accurate air supply to the maximum extent, preferably, the air supply angle theta of the tail end air supply device meets a constraint relation theta which is arctan L/H; wherein, L is the horizontal distance between the two air supply devices, and H is the height of the air supply device from the floor.
In order to create a good air flow pattern, the end air supply device is preferably installed at the position of the central axle of the train.
The utility model discloses an installation and working method of a ventilation system meeting dynamic thermal comfort, which comprises the following steps:
step 1: according to the type of the mobile vehicle carriage, the geometric dimension and the layout of the carriage and the position of the upright handrail are determined.
Step 2: determining the air supply mode of the carriage air conditioning system, and determining the position of the main air supply pipe, the position of the air supply unit and the position of the return air unit.
And step 3: according to the geometric dimension and layout of the carriage, according to the air supply angle constraint relation theta which is arctan L/H; and determining a reasonable air supply angle of the air supply mode.
And 4, step 4: and (4) determining the air outlet angle of the tail end air supply device according to the air supply angle determined in the step (3).
And 5: and determining the installation position and the number of the tail end air supply devices according to the geometric dimension of the carriage of the mobile vehicle and the positions of the upright post armrests and by combining load calculation.
Step 6: and determining parameters of the tail end air supply device according to the ceiling space of the compartment of the mobile vehicle, wherein the parameters of the tail end air supply device comprise geometric dimension, appearance, power and materials.
And 7: the turbine main part of the tail end air supply device is separated from the air outlet ring part, the turbine main part of the tail end air supply device is installed in an air supply pipeline, the air outlet ring is fixedly installed at the top of a carriage, and bayonet connection is carried out at the connecting position.
And 8: the air conditioning system is characterized in that the air conditioning unit processes air, the air is conveyed through the air supply main pipe and is sent into the interior of the compartment of the mobile vehicle from the air supply unit, and a part of air in the compartment of the mobile vehicle enters the air conditioning unit through the air return unit; the cold air in the air supply main pipe enters through the air inlet of the tail end air supply device, the turbine is driven to realize turbocharging under the action of the motor, the cold air is sent out at a high speed from the slit air outlet ring, and the strong jet flow of the cold air is realized. The tail end air supply device based on the turbine technology is introduced into a carriage of the mobile vehicle, namely, a turbine main machine part of the tail end air supply device is introduced into an air supply pipeline, an air outlet ring part is arranged in the carriage, cold air in the air supply pipeline enters from an air inlet of the turbine main machine part and is sent out at a high speed through an air outlet ring with a very small slit (1-2 mm wide), surrounding air flow is driven to move, and air multiplication is achieved; through good airflow organization, air retention is reduced, convective heat transfer between passengers and air is enhanced, air supplied by an air conditioner is uniformly delivered to a target area, the temperature in a carriage is effectively reduced, and the thermal comfort of the passengers is improved; by enhancing the air disturbance of the target area, the uniform mixing of the cold air and the air in the carriage is enhanced, so that the air sent to passengers meets the dynamic thermal comfort requirement; the power of the tail end air supply device is intelligently switched according to the number of people in the carriage, so that air supply according to the requirement is realized, and the dynamic thermal comfort of passengers is met; the turbine main machine part of the tail end air supply device is arranged in the air supply pipeline, the air outlet ring part is arranged in the carriage, and the two parts are connected at the middle shaft of the carriage by using the bayonet and are installed at intervals, so that the tail end air supply device is compact in structure, reasonable in arrangement, safe and convenient.
Has the advantages that:
1. the utility model discloses a ventilation system meeting dynamic thermal comfort, which is suitable for a mobile vehicle with dynamic thermal comfort requirements, and is particularly suitable for subways. The tail end air supply device based on the turbine technology is introduced into a subway carriage, cold air in the air supply main pipe enters through an air inlet of the tail end air supply device, the turbine is driven to realize turbocharging under the action of the motor, and the cold air is sent out from the slit air outlet ring to realize cold air jet. The method comprises the following steps of introducing a tail end air supply device based on a turbine technology into a subway carriage, namely introducing a turbine main machine part of the tail end air supply device into an air supply pipeline, arranging an air outlet part in the carriage, feeding cold air in the air supply pipeline from an air inlet of the turbine main machine part, and sending the cold air out at a high speed through an air outlet ring with a very small slit (1-2 mm) to drive surrounding air flow to move so as to realize air multiplication; by enhancing the air disturbance of the target area, the uniform mixing of the cold air and the air in the carriage is enhanced, so that the air sent to passengers meets the dynamic thermal comfort requirement; through good airflow organization, air retention is reduced, convective heat transfer between passengers and air is enhanced, air supplied by an air conditioner is uniformly delivered to a target area, the temperature in a carriage is effectively reduced, and the thermal comfort of the passengers is improved; the power of the tail end air supply device is intelligently switched according to the number of people in the carriage, so that air supply according to the requirement is realized, and the dynamic thermal comfort of passengers is met; the turbine main machine part of the tail end air supply device is arranged in the air supply pipeline, the air outlet ring part is arranged in the carriage, and the two parts are connected at the middle shaft of the carriage by using the bayonet and are installed at intervals, so that the tail end air supply device is compact in structure, reasonable in arrangement, safe and convenient.
2. The ventilation system meeting dynamic thermal comfort disclosed by the utility model can intelligently switch the power and the wind speed of the air supply device according to the number of people in a carriage by applying the multi-power tail end air supply device with adjustable air supply quantity, so that air supply according to needs is realized, and dynamic thermal comfort of the people is met.
3. On the basis of realizing the beneficial effects 1 and 2 based on the tail end air supply device, the ventilation system for meeting the dynamic thermal comfort disclosed by the utility model enhances the air flow of a target area, reduces the defects caused by air retention, enables air supplied by an air conditioner to be uniformly supplied to all places, effectively reduces the temperature in a carriage and enhances the thermal comfort in the carriage.
4. The utility model discloses a ventilation system meeting dynamic thermal comfort, wherein a turbine host part is placed in an air supply pipeline, an air outlet part is placed in a carriage, and the middle shaft of the carriage is arranged at intervals, so that the ventilation system is compact in structure and reasonable in arrangement.
Drawings
FIG. 1 is a front view of the end blower assembly of the present invention;
FIG. 2 is a schematic diagram of the arrangement of the return air inlets of the air conditioner and a top view of the installation of the terminal air supply device in the manner of upward-feeding and upward-returning air supply in the subway car;
FIG. 3 is a schematic view of the local air flow distribution after the installation of the end blower of the present invention;
FIG. 4 is a view showing the simulation result of the local air velocity distribution after the installation of the end blower of the present invention;
FIG. 5 is a diagram showing a simulation result of local temperature distribution after the installation of the end blower of the present invention;
FIG. 6(a) is a front view of the end blower of the present invention;
FIG. 6(b) is a left side view of the end blower of the present invention;
FIG. 6(c) is a plan view of the end blower of the present invention;
FIG. 6(d) is a partial schematic view of the air outlet ring of the end blower of the present invention.
Wherein: 1-subway carriage, 2-air conditioning unit, 3-air supply main pipe, 4-tail end air supply device, 5-upright post handrail in the carriage, 6/8/10-air supply unit, 7/9-return air unit, 11-tail end air supply device air inlet, 12-turbine, 13-motor, 14-bayonet joint and 15-air outlet ring.
Detailed Description
For a better understanding of the objects and advantages of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example 1:
as shown in fig. 1 and 2, the ventilation system for satisfying dynamic thermal comfort disclosed in this embodiment is a ventilation system suitable for a moving vehicle with a dynamic thermal comfort requirement. The present embodiment is explained by a subway mobile vehicle, and the present embodiment includes an air conditioning unit 2, a main air supply pipe 3, an air supply unit 6/8/10, an air return unit 7/9, and a terminal air supply device 4. The air conditioning unit 2 is used for providing refrigerating air for a carriage; the air supply main pipe 3 is used for conveying the processed cold air; the air supply unit 6/8/10 comprises a louver air supply outlet and an air supply branch pipe; the air return unit 7/9 comprises a shutter air return inlet and an air return branch pipe; and the tail end air supply device 4 adopts turbocharging to realize tail end air supply. The tail end air supply device 4 is used for supplying air to a target area accurately, local air flow disturbance is enhanced, and thermal comfort is improved, and the tail end air supply device comprises a tail end air supply device air inlet 11, a turbine 12, a motor 13, a turbine main machine part, a bayonet joint 14 and an air outlet ring 15. The turbine 12 is selected according to the maximum air supply volume required by the carriage.
The very small slit means a slit width of 1-2 mm.
In order to be safe and save space, the air supply main pipe 3 is tightly attached to the ceiling of the carriage, the pipe orifice at the joint of the air pipe and the turbine is circularly arranged, and the pipe orifice at the joint of the air supply opening and the air return opening of the louver is rectangularly arranged.
In order to adjust the air supply angle and change the air flow diffusion direction, the louver air supply outlet of the air supply unit 6/8/10 is a double-layer louver air outlet.
The double-louvered air outlet of the air blowing unit 6/8/10 is provided with an air volume adjusting valve for adjusting the air volume.
In order to adjust the direction of the return air, the return air unit 7/9 is a single-layer louver.
For the convenience of installation of the end air supply device, the end air supply device 4 comprises a turbine main body part 12 and an end air outlet ring 15.
In order to adapt to the carriage structure, the installation of being convenient for, 4 turbine host computer positions of terminal air supply arrangement and terminal air-out circle part separation department design into the bayonet socket form that makes things convenient for the dismouting, are connected with 15 bayonet socket junction departments 14 of air-out circle through turbine host computer part 12, and then realize host computer position and 15 split type designs of terminal air-out circle, according to 1 overall arrangement structure adjustment in subway carriage 15 mounted position of terminal air-out circle, the dismouting of being convenient for.
The installation and working method of the ventilation system meeting the dynamic thermal comfort disclosed by the embodiment comprises the following specific implementation steps:
step 1: according to the type of the subway carriage 1 of the mobile vehicle, the geometric dimension and the layout of the carriage and the position of the upright handrail 5 are determined.
Step 2: the air supply mode of the compartment air conditioning system is determined, and the position of the main air supply pipe 3, the position of the air supply unit 6/8/10 and the position of the return air unit 7/9 are determined.
And step 3: and determining a reasonable air supply angle of the air supply mode according to the geometric dimension and the layout of the carriage and the air supply angle constraint relation theta (arctan L/H).
And 4, step 4: and (4) determining the air outlet angle of the tail end air supply device according to the air supply angle determined in the step (3).
And 5: and determining the installation position and the number of the tail end air supply devices 4 according to the geometric dimension of the subway carriage 1 and the position of the upright post handrail 5 and by combining load calculation.
Step 6: according to the ceiling space of the subway carriage 1, parameters of the tail end air supply device 4 are determined, and the parameters of the tail end air supply device 4 comprise geometric dimension, appearance, power and materials.
And 7: the turbine main body part of the tail end air supply device is separated from the air outlet ring 15 part, the turbine main body part of the tail end air supply device is installed in the air supply main channel 3, the air outlet ring 15 is fixedly installed at the top of the carriage, and bayonet connection is carried out at a bayonet connection part 14.
And 8: the air conditioning system in the subway 1 of the mobile vehicle is characterized in that air is processed by the air conditioning unit 2, is conveyed by the air supply main pipe 3 and is sent into the subway carriage from the air supply unit 6/8/10, and a part of air in the subway carriage enters the air conditioning unit 2 through the air return unit 7/9; cold air in the air supply main pipe 3 enters through an air inlet 11 of the tail end air supply device 4, the turbine 12 is driven to realize turbocharging under the action of the motor 13, and the cold air is sent out from the slit air outlet ring 15 to realize cold air jet. The method comprises the following steps of introducing a tail end air supply device based on a turbine technology into a subway carriage, namely introducing a turbine main machine part of the tail end air supply device into an air supply pipeline, arranging an air outlet part in the carriage, allowing cold air in the air supply pipeline to enter from an air inlet 11 of the turbine main machine part and to be sent out at a high speed through an air outlet ring 15 with a very small slit (1-2 mm) to drive surrounding air flow to move, and realizing 'air multiplication'; through good airflow organization, air retention is reduced, convective heat transfer between passengers and air is enhanced, air supplied by an air conditioner is uniformly delivered to a target area, the temperature in the carriage 1 is effectively reduced, and the thermal comfort of the passengers is improved; by enhancing the air disturbance of the target area, the uniform mixing of the cold air and the air in the carriage 1 is enhanced, so that the air sent to passengers meets the dynamic thermal comfort requirement; the power of the tail end air supply device is intelligently switched according to the number of people in the carriage 1, so that air supply according to the requirement is realized, and the dynamic thermal comfort of passengers is met; the turbine main machine part 12 of the tail end air supply device 4 is arranged in an air supply pipeline, the air outlet ring 15 is arranged in a carriage, and the two parts are spliced and installed at intervals in a carriage middle shaft by using bayonets, so that the tail end air supply device is compact in structure, reasonable in arrangement, safe and convenient.
The utility model discloses a ventilation system meeting dynamic thermal comfort, which is suitable for a mobile vehicle with dynamic thermal comfort requirements. Different from the traditional mixed air supply mode and the application scene, the traditional air supply mode has no pertinence in terms of the whole space and fixed places. The dynamic thermal comfort ventilation system is used for directionally supplying air for a specific target area in a moving vehicle. The utility model is explained by taking a subway as an example. For subway cars, the passenger breathing zone is a specific target area. If the breathing area is accurately and directionally supplied with air, the problem of poor thermal comfort in the carriage can be solved, and the energy conservation is facilitated.
On this basis, the disclosed ventilation system who satisfies dynamic thermal comfort of this embodiment is used for solving the mobile vehicle with accurate air supply and turbocharging technique and has the demand of dynamic thermal comfort, especially solves the temperature distribution that current air supply mode exists the poor temperature distribution that leads to of subway carriage interior air current organization, and the interior thermal comfort is unsatisfactory, the problem of low refrigeration efficiency of carriage.
In order to verify the effectiveness of the ventilation system meeting the dynamic thermal comfort disclosed in the embodiment, a certain section of subway carriage is taken as an example, and double tests of experimental and simulation means are respectively carried out. The length of the carriage is 20m, the width is 2.3m, and the height is 2.1 m. The air supply mode of the air conditioner is upward feeding and upward returning. The effectiveness of this embodiment can be achieved by analyzing and testing the air flow organization and temperature field inside the cabin.
The verification result is shown in fig. 4 and 5, a ventilation system meeting dynamic thermal comfort is adopted in the subway carriage, the tail end air supply device supplies air, and the air flow organization in the carriage is obviously improved. The air flow of the target area is enhanced, the defects caused by air retention are reduced, the air supply of the air conditioner is uniformly delivered to all places, the temperature in the carriage is effectively reduced, and the dynamic thermal comfort requirement of personnel is met.
The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A ventilation system for satisfying dynamic thermal comfort, characterized in that: comprises an air conditioning unit (2), a main air supply pipe (3), an air supply unit (6/8/10), an air return unit (7/9) and a tail end air supply device (4); the air conditioning unit (2) is used for providing refrigerating air for the carriage (1); the air supply main pipe (3) is used for conveying the processed cold air; the air supply unit (6/8/10) comprises a louver air supply outlet and an air supply branch pipe; the air return unit (7/9) comprises a shutter air return inlet and an air return branch pipe; the tail end air supply device (4) adopts turbocharging to realize tail end air supply; the tail end air supply device (4) is used for accurately supplying air to a target area, enhancing local air flow disturbance and improving thermal comfort, and comprises an air inlet (11), a turbine (12), a motor (13), a connection part (14) of a main part of the turbine and a bayonet and an air outlet ring (15); the turbine host part of the tail end air supply device is arranged in the air supply main pipe (3), and the air outlet ring (15) is fixedly arranged at the top of the carriage;
the air conditioning system is characterized in that air is processed by the air conditioning unit (2), is conveyed by the air supply main pipe (3), is sent into the interior of a compartment of the mobile vehicle from the air supply unit (6/8/10), and a part of air in the compartment of the mobile vehicle enters the air conditioning unit (2) through the air return unit (7/9) for reprocessing; cold air in the air supply main pipe (3) enters through an air inlet (11) of the tail end air supply device, a turbine (12) is driven to realize turbocharging under the action of a motor (13), and then the cold air is sent out from a slit air outlet ring (15) to realize strong cold air jet; the tail end air supply device (4) based on the turbine technology is introduced into a carriage (1) of the mobile vehicle, a turbine main machine part of the tail end air supply device (4) is introduced into an air supply pipeline, an air outlet ring (15) is arranged in the carriage (1), cold air in the air supply pipeline enters from an air inlet (11) of the turbine main machine part and is rapidly sent out through the air outlet ring (15) with a very small area, surrounding air flow is driven to move, and air multiplication is achieved.
2. The ventilation system satisfying dynamic thermal comfort as set forth in claim 1, wherein: the width of the very small slit air outlet ring (15) is 1-2 mm.
3. The ventilation system satisfying dynamic thermal comfort as set forth in claim 1, wherein: the air supply main pipe (3) is tightly attached to the ceiling of the carriage, the pipe orifice at the joint of the air pipe and the turbine is arranged in a circular shape, and the pipe orifice at the joint of the air supply outlet and the air return inlet of the louver is arranged in a rectangular shape.
4. The ventilation system satisfying dynamic thermal comfort as set forth in claim 1, wherein: the louver air supply outlet is a double-layer louver air outlet;
the double-layer shutter air supply outlet is provided with an air volume adjusting valve for adjusting air supply volume.
5. The ventilation system satisfying dynamic thermal comfort as set forth in claim 1, wherein: the air return opening is a single-layer shutter air opening.
6. The ventilation system satisfying dynamic thermal comfort as set forth in claim 1, wherein: the tail end air supply device (4) comprises a turbine main machine part (12) and a tail end air outlet ring (15) part;
the tail end air supply device is characterized in that a turbine main machine part (12) and a tail end air outlet ring (15) part separation part are designed into bayonet forms convenient to disassemble and assemble, the bayonet forms are connected through a bayonet connection part (14), then the split design of the turbine main machine part (12) and the tail end air outlet ring (15) part is realized, and the tail end air outlet ring (15) installation position is adjusted according to the layout structure of the mobile vehicle carriage, so that the disassembly and the assembly are convenient.
7. The ventilation system satisfying dynamic thermal comfort as set forth in claim 1, wherein: in order to realize accurate air supply to the maximum extent, the air supply angle of the tail end air supply device (4) meets the constraint relation theta which is arctan L/H; wherein, L is the horizontal distance between the two air supply devices, and H is the height of the air supply device from the floor.
8. The ventilation system satisfying dynamic thermal comfort as set forth in claim 1, wherein: in order to create good air flow organization, the tail end air supply device (4) is installed at the position of a middle shaft of the train.
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| CN202122239001.XU CN216069979U (en) | 2021-09-14 | 2021-09-14 | Ventilation system meeting dynamic thermal comfort |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602304A (en) * | 2021-09-14 | 2021-11-05 | 北京理工大学 | Ventilation system and method for meeting dynamic thermal comfort |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602304A (en) * | 2021-09-14 | 2021-11-05 | 北京理工大学 | Ventilation system and method for meeting dynamic thermal comfort |
| CN113602304B (en) * | 2021-09-14 | 2024-08-06 | 北京理工大学 | Ventilating system and method for meeting dynamic thermal comfort |
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