Subway passenger room air duct with reinforced structure

Abstract

The utility model relates to a passenger room air duct with a reinforced structure for a subway, and belongs to the technical field of rail transit. According to the technical scheme, an air duct body (1) is a rectangular cavity shell formed by bonding aluminum foil composite plates, one end of the rectangular cavity shell is connected with an air supply pipeline of a train air conditioning unit through an end flange (2), an air outlet frame (5) leading to a compartment is arranged at the bottom of the rectangular cavity shell, side lifting lugs (4) are symmetrically arranged on the two sides of the rectangular cavity shell, and two static pressure partition plates (6) are arranged in the rectangular cavity shell. Each static pressure partition plate (6) is provided with evenly-distributed air openings (9), the two static pressure partition plates (6) divide the rectangular cavity shell into three cavities, the three cavities are communicated with one another through the air openings (9) in the static pressure partition plates (6), and the two static pressure partition plates (6) are connected together. The air supply device has the advantages that on the premise that the appearance and the installation position are not changed, the air supply uniformity can be improved, and corrosion of an air duct and impact of airflow on the air duct are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a passenger room air duct with structure reinforcement for subway belongs to rail transit technical field. BACKGROUND

[0002] With the rapid development of urban population and economy in China, the urban rail transit industry has ushered in a new leap-forward development, and the subway has become the main mode of transportation for people. The normal configuration of subway vehicles is 6 vehicles in a consist. In order to meet the needs of people in some special time periods, 8 vehicles in a consist need to be added. Due to the inevitable presence of impurities such as sulfuric acid, SO2, acid rain, ozone, salt mist, inhalable particulate matter, and nitrogen dioxide in the train operation environment, these impurities can corrode the air duct, and termites and rodents can also erode the air duct. In addition, impact and vibration occur during train operation, affecting the service life of the air duct. SUMMARY

[0003] The utility model aims to provide a passenger room air duct with structure reinforcement for subway, which can improve the uniformity of air supply, reduce the corrosion of the air duct and the impact of airflow on the air duct without changing the appearance and installation position, and solve the above-mentioned problems existing in the background art.

[0004] The technical scheme of the utility model is as follows:

[0005] A passenger room air duct with structure reinforcement for subway is hung at the top of the car body and comprises an air duct body, an end flange, a side hanging lug, an air outlet frame, a static pressure partition, and a side hanging lug support. The air duct body is a rectangular cavity shell made of aluminum foil composite board. One end of the rectangular cavity shell is connected with the train air conditioning unit air supply pipeline through the end flange. The bottom of the rectangular cavity shell is provided with an air outlet frame leading to the car body. The two sides of the rectangular cavity shell are provided with symmetrically arranged side hanging lugs. The inside of the rectangular cavity shell is provided with two static pressure partitions. Each static pressure partition is provided with uniformly arranged air outlets. The two static pressure partitions divide the rectangular cavity shell into three cavities. The three cavities are connected with each other through the air outlets on the static pressure partitions. The two static pressure partitions are connected together through the multiple side hanging lug supports.

[0006] Further, the two ends of the side hanging lug support are fixedly connected together with the air duct body and the side hanging lug through rivets.

[0007] Further, the static pressure partition is provided with a plurality of static pressure partition supports.

[0008] Further, the end flange is provided with symmetrically arranged end hanging lugs.

[0009] The utility model discloses a beneficial effect is: under the premise of not changing appearance and installation position, can promote the uniformity of air supply, simple and reliable structure, low in cost, can prevent corrosion, prevent insect pests etc. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is appearance structure schematic diagram of the utility model;

[0011] Figure 2 It is internal structure schematic diagram of the utility model;

[0012] In the drawing: air duct body 1, end flange 2, end lifting lug 3, side lifting lug 4, air outlet frame 5, static pressure baffle 6, side lifting lug support 7, static pressure baffle support 8, air port 9. DETAILED DESCRIPTION

[0013] The utility model will be further explained in connection with the drawings and examples:

[0014] Refer to the drawings Figure 1 、 2 , a passenger room air duct of structural reinforcement for subway is hung in the top of car, include air duct body 1, end flange 2, side lifting lug 4, air outlet frame 5, static pressure baffle 6 and side lifting lug support 7, air duct body 1 is the rectangular cavity shell that is bonded by aluminium foil composite board, one end of rectangular cavity shell is connected with train air conditioning unit air supply pipeline through end flange 2, the bottom of rectangular cavity shell is equipped with air outlet frame 5 to the car, the both sides of rectangular cavity shell are equipped with the symmetrically arranged side lifting lug 4, the inside of rectangular cavity shell is equipped with two static pressure baffles 6, each static pressure baffle 6 is equipped with the air port 9 of uniform arrangement, two static pressure baffles 6 divide rectangular cavity shell into three cavities, three cavities are communicated with each other through the air port 9 on static pressure baffle 6, two static pressure baffles 6 are connected together through multiple side lifting lug supports 7.

[0015] In the embodiment, air duct body 1 is the rectangular cavity shell that is bonded by aluminium foil composite board of non-metal material, is 3500mm long * 1360mm wide * 130mm high, belongs to non-metal foamed sandwich material, wherein the core material material is polyisocyanate, both sides are covered with 80um embossed aluminium foil, and the overall thickness is 10mm. Weight ≤1.15kg / m 2 , thermal conductivity coefficient ≤0.025W / (m·℃), water absorption ≤1%, peel strength ≥0.1N / mm, tensile strength ≥1.2MPa, bending modulus ≥400MPa.

[0016] Side lifting lug 4 is hoisted with the roof, and side lifting lug 4 and side lifting lug support 7 are fastened with air duct body 1 through rivets, so as to ensure that the air duct does not appear deformation, collapse or even fracture after being hung and fixed.

[0017] The two static pressure partitions 6 are provided with a plurality of static pressure partition supports 8, and the overall rigidity of the air duct body 1 is improved by placing side edge lifting lugs 7. The static pressure partition supports 8 are reduced inside, the air supply uniformity is improved, and the air noise and the airflow impact on the air duct are reduced.

[0018] The air duct body 1 is supplied with air by a train air conditioning unit, and the air duct body 1 realizes connection of air ducts of different lengths through end flanges 2 and end lifting lugs 3, and the total length of the connection is about 20 meters.

Claims

1. A passenger compartment ventilation duct for subway structural reinforcement, suspended from the ceiling of the car, characterized in that: The system includes a duct body (1), an end flange (2), side lugs (4), an air outlet frame (5), a static pressure baffle (6), and side lug supports (7). The duct body (1) is a rectangular cavity shell made of aluminum foil composite board. One end of the rectangular cavity shell is connected to the air supply duct of the train air conditioning unit through the end flange (2). The bottom of the rectangular cavity shell is provided with an air outlet frame (5) leading to the carriage. The two sides of the rectangular cavity shell are provided with symmetrically arranged side lugs (4). The interior of the rectangular cavity shell is provided with two static pressure baffles (6). Each static pressure baffle (6) is provided with evenly arranged air outlets (9). The two static pressure baffles (6) divide the rectangular cavity shell into three chambers. The three chambers are connected to each other through the air outlets (9) on the static pressure baffles (6). The two static pressure baffles (6) are connected together by multiple side lug supports (7).

2. The passenger compartment ventilation duct for structural reinforcement in subways according to claim 1, characterized in that: The two ends of the side lug support (7) are fixedly connected to the air duct body (1) and the side lug (4) by rivets.

3. A passenger compartment ventilation duct for structural reinforcement in subway systems according to claim 1 or 2, characterized in that: The static pressure baffle (6) is provided with several static pressure baffle supports (8).

4. A passenger compartment ventilation duct for structural reinforcement in subway systems according to claim 1 or 2, characterized in that: The end flange (2) is provided with symmetrically arranged end lugs (3).

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