Passenger room air supply system suitable for urban railway vehicle

Abstract

According to the passenger room air supply system suitable for the urban railway vehicle, a first air conditioning unit and a second air conditioning unit are arranged in the length direction of each carriage of the railway vehicle, and air supply outlets are formed in the two ends and the bottom of each air conditioning unit; the air supply system further comprises a first air supply duct, a second air supply duct, a third air supply duct, a fourth air supply duct and a fifth air supply duct. When other equipment is arranged on the roof, two air conditioning units cannot be symmetrically arranged in the length direction of the automobile, so that the positions of air supply outlets of the air conditioning units are also asymmetrical, the air supply duct of the passenger room adopts a mode of combining top plate pore plate air supply and two-side grating air supply, the air supply area is large, the air supply uniformity requirement of each area in the automobile can be met, and the air supply efficiency is improved. And meanwhile, the air conditioning unit is connected with the air conditioning unit in a pressing mode through a sealing rubber strip, so that the air conditioning unit is more convenient to install.

Description

Technical Field

[0001] The utility model relates to an air conditioning system for urban rail transit vehicles, in particular to a passenger compartment air supply system suitable for urban rail transit vehicles. Background Art

[0002] In order to meet the demand for urban rail transit passenger volume, two unit-type air-conditioning units are arranged on the roof of urban rail vehicles. When there are other equipment on the roof, the two air-conditioning units cannot be arranged symmetrically in the length direction of the vehicle, which leads to the asymmetric position of the air outlets of the air-conditioning units. In order to ensure uniform air supply in all areas of the vehicle, an air supply system suitable for urban rail vehicles needs to be designed. Utility Model Content

[0003] The utility model aims to design a passenger compartment air supply system suitable for urban rail vehicles to ensure uniform air supply in the passenger compartment.

[0004] To achieve the above-mentioned purpose, the utility model provides a passenger compartment air supply system suitable for urban railway vehicles, wherein a first air-conditioning unit and a second air-conditioning unit are arranged in the length direction of each carriage of the railway vehicle, air supply outlets are arranged at both ends of each air-conditioning unit and at the bottom of the unit, and the air supply system also includes a first air supply duct, a second air supply duct, a third air supply duct, a fourth air supply duct and a fifth air supply duct; each air supply duct is an independent unit, and the first air supply duct, the second air supply duct, the first air supply duct, the third air supply duct, the fourth air supply duct, the second air supply duct and the fifth air supply duct are connected in sequence, the air supply outlets of the air-conditioning units are sealed and crimped with the air supply interfaces at the ends of the air supply ducts connected to each other, the lower flat air supply interfaces of each air supply duct are sealed and crimped with the internal flat top plate air outlet grille and the middle top plate hole plate, and each air supply duct is hoisted on the vehicle body through an air duct bracket.

[0005] Furthermore, the air supply outlet of the air conditioning unit and the air supply interface at the end of the interconnected air supply duct are sealed and crimped by a sealing strip.

[0006] Furthermore, the lower plane air supply interface of the air supply duct is sealed and crimped with the internal flat top plate air outlet grille and the middle top plate hole plate by means of a sealing strip.

[0007] Furthermore, the first air supply duct, the second air supply duct, the third air supply duct, the fourth air supply duct and the fifth air supply duct of the air supply system are divided into a middle main air duct cavity and static pressure cavities on both sides. The supply air enters the static pressure cavity through the main air duct cavity, and finally enters the room from the bottom opening of the static pressure cavity through the passenger compartment ceiling and the internal flat ceiling air outlet grille. A vent is provided at the bottom of the main air duct cavity, and a slow flow plate is provided at the vent to avoid poor comfort in the passenger compartment area below due to excessive wind speed in this area, which is conducive to uniform air supply.

[0008] When there are other equipment on the roof, the two air-conditioning units cannot be arranged symmetrically in the direction of the vehicle length, which causes the air outlet positions of the air-conditioning units to be asymmetrical as well. This set of passenger compartment air supply ducts adopts a combination of top plate perforated plate air supply and grille air supply on both sides. The air supply area is large, which can achieve the air supply uniformity requirements in various areas of the car, and also meet the comfort of passengers with longer distances between urban rail stations. At the same time, it is crimped with sealing strips to the air-conditioning unit, which is more convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the layout of the air conditioning unit;

[0010] Figure 2 This is a schematic diagram of the air outlet at the bottom of the air conditioning unit;

[0011] Figure 3 The top view of the air supply system (without the roof);

[0012] Figure 4 It is a schematic diagram of the installation relationship of the air supply system section and the air supply principle;

[0013] Figure 5 It is a top view of the air supply principle of the air supply system;

[0014] Figure 6 Schematic diagram of the vent at the bottom of the main air duct cavity. DETAILED DESCRIPTION

[0015] The air supply system of this passenger compartment adopts 5 air supply ducts with slow flow plates, of which 4 air supply ducts are connected to the air supply outlet of the air conditioning unit. The air supply resistance of the main air duct cavity can be changed by adjusting the height of the slow flow plates, thereby changing the air supply speed of the grilles on both sides, thereby meeting the requirement of uniform air supply in the vehicle interior area; the air supply duct is installed in the form of a hoisting structure, the lower plane air supply interface of the air supply duct is sealed and crimped with the internal flat top plate air outlet grille and the middle top plate hole plate, and the air supply interface at the end of the air supply duct is sealed and crimped with the air supply outlet 13 of the air conditioning unit.

[0016] Due to the arrangement of other equipment on the roof, the first air conditioning unit 10 and the second air conditioning unit 11 are arranged asymmetrically based on the center line of the vehicle body. Figure 1 Each air-conditioning unit is provided with air outlets 13 at both ends and at the bottom of the unit, and the specific positions are as follows: Figure 2 In order to achieve uniform air supply to the vehicle, an air supply system is designed, which mainly consists of: a first air supply duct 1, a second air supply duct 2, a third air supply duct 3, a fourth air supply duct 4 and a fifth air supply duct 5, each of which is an independent unit; the first air supply duct 1, the second air supply duct 2, the first air conditioning unit 10, the third air supply duct 3, the fourth air supply duct 4, the second air conditioning unit 11 and the fifth air supply duct 5 are connected in sequence.

[0017] The air supply interface of the air supply port 13 of the air conditioning unit and the second air supply duct 2, the third air supply duct 3, the fourth air supply duct 4 and the fifth air supply duct 5 is sealed by a sealing strip 6. Figure 2 Each air supply duct of the air supply system is hoisted on the vehicle body by an air duct bracket 9, as shown in FIG. Figure 4 Each air supply duct of the air supply system is sealed with a sealing strip 6 circles around the flat roof grille, and each air supply duct is sealed with a sealing strip 6 circles around the middle roof perforated plate. Figure 4 The air duct layout of the air supply system is as shown in Figure 5 shown.

[0018] Each air supply duct of the air supply system is divided into a middle main air duct cavity 7 and static pressure cavities 8 on both sides. The supply air enters the static pressure cavity through the main air duct cavity, and finally enters the room from the bottom opening of the static pressure cavity through the passenger compartment ceiling and the internal flat ceiling air outlet grille. The bottom vent of the main air duct cavity 7 adopts a slow flow plate 12 design to avoid excessive wind speed in this area, which may cause poor comfort in the passenger compartment area below, and is conducive to uniform air supply.

[0019] The openings of the first air supply duct 1, the second air supply duct 2, the third air supply duct 3, the fourth air supply duct 4 and the fifth air supply duct 5 of the air supply system are evenly arranged along the entire length of the vehicle, corresponding to the interior flat roof air outlet grille and the middle roof perforated plate, ensuring basically uniform air supply in each area of ​​the passenger compartment throughout the length.

Claims

1. A passenger compartment air supply system suitable for urban rail vehicles, characterized in that: A first air conditioning unit and a second air conditioning unit are arranged in the length direction of each carriage of a railway vehicle, air supply outlets are arranged at both ends and at the bottom of each air conditioning unit, and the air supply system also includes a first air supply duct, a second air supply duct, a third air supply duct, a fourth air supply duct and a fifth air supply duct; each air supply duct is an independent unit, and the first air supply duct, the second air supply duct, the first air conditioning unit, the third air supply duct, the fourth air supply duct, the second air conditioning unit and the fifth air supply duct are connected in sequence, the air supply outlets of the air conditioning units are sealed and crimped with the air supply interfaces at the ends of the air supply ducts connected to each other, the lower plane air supply interface of each air supply duct is sealed and crimped with the internal flat top plate air outlet grille and the middle top plate hole plate, and each air supply duct is hoisted on the vehicle body through an air duct bracket.

2. The passenger compartment air supply system suitable for urban rail vehicles according to claim 1, characterized in that: The air supply outlet of the air conditioner unit and the air supply interface at the end of the air supply duct connected to each other are sealed and crimped by a sealing strip.

3. The passenger compartment air supply system suitable for urban rail vehicles according to claim 1, characterized in that: The lower plane air supply interface of the air supply duct is sealed and pressed with the internal flat top plate air outlet grille and the middle top plate hole plate through a sealing strip.

4. The passenger compartment air supply system suitable for urban rail vehicles according to claim 1, characterized in that: The first air supply duct, the second air supply duct, the third air supply duct, the fourth air supply duct and the fifth air supply duct of the air supply system are divided into a middle main air duct cavity and static pressure cavities on both sides. The supply air enters the static pressure cavity through the main air duct cavity, and finally enters the room from the bottom opening of the static pressure cavity through the passenger compartment ceiling and the internal flat ceiling air outlet grille. A vent is provided at the bottom of the main air duct cavity, and a slow flow plate is provided at the vent to avoid poor comfort in the passenger compartment area below due to excessive wind speed in this area, which is conducive to uniform air supply.

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