Novel urban rail transit elevated station local ventilator

Abstract

The utility model belongs to the technical field of ventilation equipment, and particularly relates to a novel urban rail transit elevated station local ventilator which is characterized in that the novel urban rail transit elevated station local ventilator is composed of a cross flow fan and a cabinet body, the top of the cross flow fan is provided with an air inlet, the side edge of the cross flow fan is provided with an air outlet I, and the cabinet body is provided with an air outlet II. The cabinet body is composed of an upper-layer cabinet body and a lower-layer cabinet body, the top of the upper-layer cabinet body is of an open structure, four shutter air outlets II are formed in the four side faces of the upper-layer cabinet body respectively, the cross-flow fan is installed in the upper-layer cabinet body, an air outlet I of the cross-flow fan is installed right opposite to the shutter air outlets II, and the lower-layer cabinet body is of a hollow structure. And a cabinet door is arranged in front of the cabinet body. The novel urban rail transit elevated station local ventilator is good in ventilation effect, and meanwhile fire-fighting equipment and an emergency stop button can be conveniently arranged.

Description

Technical Field

[0001] This utility model belongs to the field of ventilation equipment technology, and is particularly applicable to a new type of local ventilator for elevated stations of urban rail transit. Background Technology

[0002] Urban rail transit, as a highly efficient and energy-saving mode of transportation, has seen significant development in recent years. Some sections of urban rail transit require elevated tracks, and elevated stations also need effective ventilation design to provide passengers with a comfortable, hygienic, and safe waiting environment. Currently, the ventilation design of the public areas of elevated station platforms in China mainly adopts the following two models: (1) The platforms have open sides on both sides of the track area, relying entirely on natural ventilation without any mechanical ventilation measures; (2) Air supply ducts are installed on both sides of the public area of ​​the platform level near the track area, and fans are turned on to supply air to the platform when necessary. The first model does not employ any mechanical ventilation measures, making it impossible to achieve effective ventilation when the station has excessive passenger flow or the platform temperature is too high, affecting passenger comfort. The second model impacts the station building; installing air conditioning supply ducts requires increasing the platform height and also necessitates the independent installation of fan rooms at both ends of the platform level, which has a certain impact on the station's architectural layout. Furthermore, if the duct height is too high, the air supply effect is not ideal. Besides ventilation issues, elevated stations face several other problems: ① Fire hydrants must be installed every 30 meters on the platform level according to fire safety requirements. However, placing fire hydrants in the public area of ​​elevated station platforms significantly impacts the station's aesthetics, making this a major concern. ② Emergency stop buttons in elevated stations are typically located at the station ends without clear signage, causing inconvenience for operation and maintenance. A utility model patent with authorization number CN202254084U proposes a local ventilator for elevated urban rail transit stations that provides both ventilation and convenient installation of fire-fighting facilities and emergency stop buttons. However, the ventilator's air inlet is located at the bottom, and the outlet at the top. The internal space of the cabinet between the inlet and outlet forms a certain distance of air duct, and the internal structure and walls of the cabinet create resistance to airflow, severely affecting the ventilator's performance. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects and provide a new type of local ventilator for elevated stations of urban rail transit, which is convenient for the installation of fire-fighting facilities and emergency stop buttons and can provide efficient ventilation.

[0004] This utility model provides a novel local ventilator for elevated urban rail transit stations. The ventilator comprises a crossflow fan and a cabinet. The crossflow fan has an air inlet at the top and an air outlet (I) on the side. The cabinet consists of an upper cabinet and a lower cabinet. The upper cabinet has an open top and four louvered air outlets (II) on its four sides. The crossflow fan is installed in the upper cabinet, with its air outlet (I) directly opposite the louvered air outlets (II). The lower cabinet has a hollow structure and a door at its front.

[0005] The advantages of this invention are as follows: the crossflow fan has an air inlet at the top and an air outlet I on the side, with the air outlet I directly facing the louvered air outlet II. There are no ventilation ducts involved in the entire ventilation process, thus eliminating ventilation resistance and resulting in better ventilation. The lower cabinet has a hollow structure, facilitating the installation of fire-fighting equipment. Emergency stop buttons, advertising boards, etc., can also be installed on the cabinet. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of this utility model.

[0007] Figure 2 This is a schematic diagram of the crossflow fan of this utility model.

[0008] The corresponding technical features are marked as follows in the attached diagram:

[0009] 1-Cabinet body, 2-Upper cabinet body, 3-Crossflow fan, 4-Louvre air outlet II, 5-Lower cabinet body, 6-Cabinet door, 7-Air inlet, 8-Air outlet I. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] like Figure 1 As shown in Figure 2, when implementing this utility model, firstly, the cabinet (1) of the ventilator is made, and the cabinet is divided into an upper cabinet (2) and a lower cabinet (5). The upper cabinet (2) is made into a top-open structure, and four louvered air outlets II (4) are set on the four sides of the upper cabinet (2). When making the lower cabinet (5), a cabinet door (6) is set on the front of the lower cabinet (5). When making the crossflow fan (3), the air inlet (7) is set on the top of the crossflow fan (3), and the air outlet I (8) is set on the side of the crossflow fan (3). Finally, the crossflow fan (3) is installed on the upper cabinet (2), so that the air inlet (7) is on the top, and the air outlet I (8) is installed directly opposite the louvered air outlet II (4). This new type of local ventilator for elevated stations of urban rail transit has good ventilation effect and is also convenient for setting up fire-fighting facilities and emergency stop buttons.

Claims

1. A novel local ventilator for elevated stations in urban rail transit, characterized in that: The novel local ventilator for elevated urban rail transit stations consists of a crossflow fan and a cabinet. The crossflow fan has an air inlet at the top and an air outlet I on the side. The cabinet consists of an upper cabinet and a lower cabinet. The upper cabinet has an open top and four louvered air outlets II on its four sides. The crossflow fan is installed in the upper cabinet, with the air outlet I of the crossflow fan facing the louvered air outlets II. The lower cabinet has a hollow structure and a cabinet door at the front.

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