WO2022267439A1 - Véhicule ferroviaire et son système de climatisation - Google Patents

Véhicule ferroviaire et son système de climatisation Download PDF

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Publication number
WO2022267439A1
WO2022267439A1 PCT/CN2022/070215 CN2022070215W WO2022267439A1 WO 2022267439 A1 WO2022267439 A1 WO 2022267439A1 CN 2022070215 W CN2022070215 W CN 2022070215W WO 2022267439 A1 WO2022267439 A1 WO 2022267439A1
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WO
WIPO (PCT)
Prior art keywords
air
return
fan
conditioning system
roof wall
Prior art date
Application number
PCT/CN2022/070215
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English (en)
Chinese (zh)
Inventor
王胜光
赖森华
蒋欣
周新喜
吕晓俊
Original Assignee
中车青岛四方机车车辆股份有限公司
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Publication of WO2022267439A1 publication Critical patent/WO2022267439A1/fr

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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
    • B61D27/0018—Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating
    • 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

Definitions

  • the invention relates to the technical field of vehicles, in particular to a rail vehicle and an air conditioning system thereof.
  • the air-conditioning system is one of the important components of rail vehicles.
  • the air-conditioning system is mainly to achieve the comfort of the ambient temperature inside the cabin.
  • the air-conditioning system mainly includes power actuators, control devices, and power actuators such as compressors and fans are usually located on the roof of the vehicle to provide fresh air to the interior of the compartment, discharge part of the air inside the compartment, and control the fresh air and return air. Temperature adjustment.
  • the control device is usually arranged in the control cabinet inside the compartment, and is used to control the state of the power actuator components.
  • the current air-conditioning system mostly adopts the method of top air supply and top return air, which may easily lead to a short circuit of the air flow inside the compartment and seriously affect the comfort of passengers.
  • An object of the present invention is to provide an air conditioning system for passenger comfort in a vehicle compartment. Another object of the present invention is to provide a rail vehicle comprising the above air conditioning system.
  • the invention provides an air-conditioning system for a rail vehicle, which includes an air-conditioning unit located outside the roof wall of the rail vehicle; inside the compartment of the rail vehicle there are fresh air inlets and return air outlets, which are respectively used to communicate with the interior space of the compartment and the air conditioner.
  • the return air outlet is far away from the longitudinal center plane of the roof wall, so that the lateral position with the fresh air inlet can be as large as possible to avoid air short circuit, and part of the return air outlet in the present invention is located on the side close to the floor, so that the position close to the floor
  • the air flow can enter the interior of the air conditioning unit through this part of the air return port, thereby improving the air flow organization inside the compartment and improving the comfort of the vehicle.
  • the air return port includes a first air return port and a second air return port, the first air return port is located on both lateral sides of the roof wall, close to the turning section at the end of the roof wall;
  • the second return air outlet is arranged close to the floor.
  • the air return chamber has the first air return port; the roof wall forming the air return chamber is provided with a first opening for direct connection with the fresh air pipeline of the air conditioning unit.
  • a return air passage is formed inside the side wall of the rail vehicle, and the second air return port is provided on a lower side wall section of the side wall close to the floor.
  • a plurality of exhaust gas cavities are enclosed between the roof wall and the interior trim panel, and each of the exhaust gas cavities is close to the lateral end of the roof wall to form the exhaust gas cavities
  • the interior trim panel is provided with an exhaust gas discharge port that communicates with the interior of the vehicle compartment, and the roof wall is provided with a second port that communicates with the outside, and the exhaust gas discharge port is close to the end corner of the roof wall.
  • the air conditioning unit includes a casing, the casing is integrated with a compressor, a ventilator, a condensing fan, a waste exhaust fan and a control device, and the control device includes a frequency conversion control component for the compressor, The frequency conversion control of the ventilator, exhaust fan and condensing fan, the control device also includes a communication module, which is used for mutual communication with the touch screen located inside the cabin.
  • control device pre-stores the relationship sub-modules of the wind speed of the fan, the passenger capacity of the compartment, and the target temperature of the compartment. Air supply temperature, air conditioning system pipeline pressure, and adjust the wind speed of the fan in the current state.
  • control device also pre-stores the optimal performance curve of the compressor, and the relationship between the optimal performance curve of the compressor is the relationship curve between the saturated pressure and the saturated temperature when the compressor is in the optimal working state;
  • the device also adjusts the rotating speed of the condensing fan according to the best working performance curve of the compressor and the current frequency of the compressor, so that the compressor is in the best working state.
  • control device also includes a fan control module.
  • the operating frequency of the exhaust fan and the opening of the exhaust valve are calculated according to the opening of the fresh air valve and the operating frequency of the fan, so that the fresh air volume and the exhaust The exhaust air volume is within a predetermined ratio range, or/and, the fan control module can also reduce the operating frequency of the fan to 30Hz and increase the operating frequency of the waste exhaust fan to 50Hz according to the door opening command for a predetermined time;
  • the fan control module can also control the opening degree of the fresh air valve and the working frequency of the ventilator according to the vehicle door closing command to calculate the operating frequency of the waste exhaust fan and the opening degree of the waste exhaust valve, so that the fresh air volume and the waste exhaust air volume are in the same range. Predetermined scale range.
  • the present invention also provides a rail vehicle, comprising at least one carriage, and the air conditioning system for the rail vehicle described in any one of the above items.
  • Fig. 1 is the local structure schematic diagram of the air-conditioning system of rail vehicle in a kind of embodiment of the present invention
  • Fig. 2 is a top view schematic diagram of a car body of a rail vehicle in an embodiment of the present invention
  • Fig. 3 is a partial schematic diagram of the return air passage in the side wall in an embodiment of the present invention.
  • Fig. 4 is a schematic top view of the local structure of the air conditioning unit in an embodiment of the present invention.
  • Fig. 5 is a graph showing the relationship between the operating frequency of the ventilator and the passenger capacity in an embodiment of the present invention.
  • 1 air conditioning unit 10 casing; 11 frequency conversion control components; 12 ventilator; 13 condensing fan; 14 compressor; 2 roof wall; Fresh air inlet; 2-2 air return port; 2-3 waste exhaust port; 3a return air channel.
  • Fig. 1 is the local structure diagram of the air-conditioning system of rail vehicle in an embodiment of the present invention
  • Fig. 2 is the top view schematic diagram of the car body of rail vehicle in a kind of embodiment of the present invention
  • Fig. 3 is A partial schematic diagram of the return air channel in the side wall in an embodiment of the present invention
  • FIG. 4 is a schematic top view of a partial structure of an air-conditioning unit in an embodiment of the present invention.
  • the invention provides an air-conditioning system for a rail vehicle, comprising an air-conditioning unit 1 located outside the roof wall 2 of the rail vehicle; the main function of the air-conditioning unit 1 is to regulate the ambient temperature inside the compartment 2b.
  • the air conditioning unit 1 may include components such as a compressor 14 , a ventilator 12 , a condensing fan 13 , and a waste exhaust fan, among which the compressor 14 is a working component for providing circulating flow of refrigerant and compressing the refrigerant.
  • the ventilator provides power for the fresh air entering the air conditioning unit 1
  • the condensing fan provides power for the gas discharged from the air conditioning unit 1
  • the waste exhaust fan provides power to discharge part of the gas inside the compartment 2b to the external environment.
  • the compartment interior 2b of the rail vehicle provided by the present invention has a fresh air inlet 2-1 and a return air outlet 2-2, which are respectively used to connect the compartment interior 2b space with the fresh air pipeline of the air-conditioning unit 1, and the compartment interior 2b space with the air-conditioning unit 1 return air duct. That is to say, after the outside fresh air is mixed with the part of the return air flowing out from the compartment interior 2b, it passes through the air conditioner unit 1 for heat exchange treatment, and then flows along the fresh air pipeline to the fresh air inlet 2-1, and enters the compartment interior 2b from the fresh air inlet 2-1. .
  • the number of fresh air inlets 2-1 and return air outlets 2-2 corresponding to the same air conditioning unit 1 in the present invention can be at least one, or two or more.
  • the number of fresh air inlets 2-1 is more than two
  • the number of return air outlets 2-2 is also more than two, which are arranged at predetermined intervals in the compartment 2b, which is conducive to uniform air intake and return in the compartment.
  • the position of the air return port 2-2 is far away from the longitudinal center plane of the roof wall 2; and part of the return air port 2-2 is located close to the floor side of the rail vehicle.
  • This paper provides a specific embodiment in which the fresh air inlet 2-1 is close to or located in the middle of the roof wall 2, and the return air outlet 2-2 is away from the longitudinal center plane of the roof wall 2, and is located outside the fresh air inlet 2-1.
  • the air return port 2-2 is far away from the longitudinal center plane of the roof wall 2, so that the lateral position with the fresh air inlet 2-1 can be as large as possible to avoid air short circuit, and part of the air return port 2-2 in the present invention is located close to the floor One side of it is set so that the airflow close to the floor position can enter the interior of the air conditioning unit 1 through the part of the air return port 2-2, thereby improving the airflow organization inside the compartment 2b and improving the comfort of the vehicle.
  • the fresh air inlet 2 - 1 is close to the longitudinal center plane of the roof wall 2 , eg symmetrically arranged on the longitudinal center plane of the roof wall 2 .
  • the air return port 2-2 includes a first air return port 2-2 and a second air return port 2-2.
  • the first air return port 2-2 is located on both lateral sides of the roof wall 2, close to the turning section 21 at the end of the roof wall 2. , That is to say, the first air return port 2-2 is set as close as possible to the lateral end of the roof wall 2; the second air return port 2-2 is set close to the floor.
  • the distance between the first return air outlet 2-2 and the fresh air inlet 2-1 is as large as possible, which can optimize the gas organization flow path.
  • the first air return port 2-2 is located at the top of the car body, and the second air return port 2-2 is close to the floor of the car body.
  • the tuyere 2-2 enters the return air pipeline of the air-conditioning unit 1, which improves the gas organization inside the car body as much as possible, and greatly improves the comfort of passengers in the car interior 2b.
  • the compartment interior 2b also includes an interior trim panel
  • the main material of the interior trim panel can refer to the current technology
  • the interior trim panel mainly plays a decorative role, covering part of the vehicle body structure, and improving the aesthetics of the compartment interior 2b .
  • each air return chamber 2a is close to the lateral end of the roof wall 2, and the air return chamber 2a has a first air return port 2-2
  • the roof wall 2 forming the return air cavity 2a is provided with a first opening for direct connection with the fresh air pipeline of the air conditioning unit 1 . That is to say, the roof wall 2 is directly connected to the fresh air pipeline of the air-conditioning unit 1 without setting other intermediate connecting pipelines.
  • Part of the airflow in the cabin interior 2b enters the air return cavity 2a from the first air return port 2-2, and enters the interior of the air conditioning unit 1 along the first opening, eliminating the need for intermediate pipelines, simplifying the mechanism of the air conditioning system, reducing the overall weight of the vehicle, and meeting the requirements of lightweight vehicles design needs.
  • a return air passage 3a is formed inside the side wall 3 of the rail vehicle, and a second air return port 2-2 is provided on the lower side wall section of the side wall 3 close to the floor.
  • the return air channel 3a is formed by the structure of the side wall 3 itself, without the need to set up other structures separately, which greatly reduces the weight of the car body, and the formation of the return air channel and the interior of the side wall 3 do not occupy the space of the interior 2b of the car, avoiding the layout of the car make an impact.
  • a plurality of exhaust gas chambers are enclosed between the roof wall 2 and the interior trim panel, each exhaust gas chamber is close to the lateral end of the roof wall 2, and the exhaust gas chamber and the return air chamber 2a
  • the shapes can be approximately the same and arranged along the longitudinal direction, which is conducive to the uniform appearance of the interior of the car body and the processing of interior trim panels.
  • the return air chamber 2a and the waste gas chamber may also have different structures.
  • the interior trim panel forming the exhaust gas chamber is provided with an exhaust gas discharge port 2-3 connected to the interior 2b of the vehicle compartment, and the roof wall 2 is provided with a second port connected to the outside.
  • the exhaust gas discharge port 2-3 and the fresh air inlet 2-1 are both The fresh air inlet 2-1 is located close to the longitudinal center plane of the roof wall 2, and the exhaust gas discharge port 2-3 is close to the turning section 21 at the end of the roof wall 2.
  • part of the structure of the current air-conditioning unit 1 is arranged on the roof, and the control device is arranged in the interior 2b of the carriage, which will occupy part of the space in the interior 2b of the carriage and affect the overall layout of the interior of the automobile.
  • the air conditioning unit 1 includes a casing 10, the casing 10 is integrated with a compressor, a ventilator, a condensing fan, a waste exhaust fan and a control device, and the control device includes a frequency conversion control component 11 for the compressor,
  • the frequency conversion control of the ventilator, waste exhaust fan and condensation fan, the frequency conversion control part 11 includes a ventilator frequency converter, a compressor frequency converter, a waste exhaust fan frequency converter and a condensation fan frequency converter.
  • the control device also includes a communication module, which is used for mutual communication with the touch screen located inside the vehicle cabin.
  • the power components and executive components of the air-conditioning unit 1 are integrated inside the casing, which reduces the space occupied by the air-conditioning unit 1 on the interior 2b of the compartment, and can optimize the layout of the interior 2b of the compartment.
  • the compressor, ventilator, condensing fan and waste exhaust fan in the above-mentioned embodiment are controlled by frequency conversion, and the components such as the compressor, ventilator, condensing fan and waste exhaust fan can be controlled according to the actual ambient temperature and gas quality of the compartment interior 2b To improve the flexibility of temperature regulation in the cabin and achieve higher comfort.
  • control device can also pre-store the relationship sub-module between the wind speed of the fan, the passenger capacity of the compartment, and the target temperature of the compartment. , Air conditioning system pipeline pressure, adjust the fan speed in the current state. For example, the greater the passenger capacity of the compartment, the greater the wind speed of the ventilator, and the greater the difference between the current compartment temperature and the target compartment temperature, the greater the wind speed of the ventilator.
  • control device of the air-conditioning system of the rail vehicle also pre-stores the optimal performance curve of the compressor. relationship curve; the control device also adjusts the rotating speed of the condensing fan according to the best working performance curve of the compressor and the current frequency of the compressor, so that the compressor is in the best working state.
  • the control device of the air-conditioning system of the rail vehicle also includes a fan control module.
  • the operating frequency of the waste exhaust fan and the opening of the waste exhaust valve are calculated according to the opening of the fresh air valve and the operating frequency of the ventilator. Make the fresh air volume and exhaust air volume within a predetermined ratio range.
  • the range of the predetermined ratio may be 0.8 to 1.2, and theoretically 1 is optimal.
  • the following table shows the values of passenger capacity, operating frequency of ventilator, opening of fresh air valve, operating frequency of waste exhaust fan and opening of waste exhaust valve under different working conditions.
  • the operating frequency of the ventilator may be determined according to the passenger capacity.
  • FIG. 5 shows the relationship between the operating frequency of the ventilator and the passenger capacity in a specific embodiment.
  • the present invention also provides a control logic for adjusting the operating frequency of the ventilator according to other factors, specifically as follows:
  • the fan frequency should be increased appropriately to cooperate with the high-frequency operation of the compressor to quickly reduce the passenger room temperature to the set temperature.
  • the implementation is as follows:
  • the fan When 19 ⁇ Ti ⁇ Ts°C, the fan operates at the frequency corresponding to the current load.
  • the ventilator When Ti>Ts+3°C, the ventilator operates at a frequency of 50Hz.
  • the fan control module provided in the present invention can also reduce the operating frequency of the fan to 30 Hz and increase the operating frequency of the waste exhaust fan to 50 Hz for a predetermined time according to the door opening command;
  • the fan control module can also control the opening of the fresh air valve and the working frequency of the ventilator according to the door closing command, calculate the working frequency of the waste exhaust fan, and the opening of the waste exhaust valve, so that the fresh air volume and the exhaust air volume are in a predetermined ratio scope.
  • the predetermined ratio range is the ratio of the two when the vehicle is running, which can be referred to above.
  • the network sends a door opening command to the air conditioner controller, the fan starts to reduce the operating frequency to 30Hz, and the waste exhaust fan increases the operating frequency to 50hz;
  • the network will issue a door close command to the air conditioner controller, and the operating frequency of the air conditioner system will return to the normal frequency;
  • the maximum running time of the vehicle with the door open and at reduced frequency can be no more than 2 minutes.
  • the fan frequency conversion logic priority of the vehicle under the door opening and closing condition is higher than that of other fan frequency conversion control logics under normal working conditions.
  • the present invention also provides a rail vehicle, which includes at least one carriage, and also includes the air conditioning system of the rail vehicle in any of the above embodiments.
  • Each compartment corresponds to an air-conditioning unit 1 .
  • the rail vehicle of the present invention has the above-mentioned air-conditioning system, so the rail vehicle also has the above-mentioned technical effects of the air-conditioning system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

Véhicule ferroviaire et son système de climatisation. Le système de climatisation comprend une unité de climatisation, qui est située sur un côté extérieur de la paroi de toit du véhicule ferroviaire, une entrée d'air frais et un orifice d'air repris étant tous deux formés dans une voiture du véhicule ferroviaire, et sont respectivement utilisés pour permettre la communication de l'espace intérieur de la voiture avec une conduite d'air frais de l'unité de climatisation et la communication de l'espace intérieur de la voiture avec une conduite d'air repris de l'unité de climatisation ; au moins par rapport à l'entrée d'air frais, la position de l'orifice d'air repris est éloignée d'un plan médian longitudinal de la paroi de toit ; de plus, une partie de l'orifice d'air repris est disposée dans le côté du véhicule ferroviaire qui est proche du plancher. Selon la présente invention, l'orifice d'air repris est éloigné du plan médian longitudinal de la paroi de toit, de telle sorte que la distance entre l'orifice d'air repris et l'entrée d'air frais dans une direction transversale peut être aussi grande que possible, et une boucle d'écoulement d'air court est évitée ; en outre, une partie de l'orifice d'air repris est située sur le côté proche du sol, de telle sorte que l'écoulement d'air à la position proche du sol peut entrer dans l'unité de climatisation par l'intermédiaire de ladite partie de l'orifice d'air repris, ce qui permet d'améliorer la distribution d'écoulement d'air à l'intérieur de la voiture et d'augmenter le confort du véhicule.
PCT/CN2022/070215 2021-06-24 2022-01-05 Véhicule ferroviaire et son système de climatisation WO2022267439A1 (fr)

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CN202110707690.4A CN113335324A (zh) 2021-06-24 2021-06-24 一种轨道车辆及其空调系统
CN202110707690.4 2021-06-24

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CN113335324A (zh) * 2021-06-24 2021-09-03 中车青岛四方机车车辆股份有限公司 一种轨道车辆及其空调系统
RU209232U1 (ru) * 2021-10-18 2022-02-08 Общество С Ограниченной Ответственностью "Кск Инжиниринг" (Ооо "Кск Инжиниринг") Устройство распределения воздуха в салоне пассажирского вагона
CN114407949B (zh) * 2022-01-14 2023-04-25 中车青岛四方机车车辆股份有限公司 轨道车辆的车内环境调控方法

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