CN216481414U

CN216481414U - Arrangement structure of combined building smoke exhaust machine room at entrance and exit of subway station

Info

Publication number: CN216481414U
Application number: CN202120733619.9U
Authority: CN
Inventors: 杜艳斌; 平良帆; 张留勇; 王泽新; 吴根平; 朱艳艳
Original assignee: Yellow River Engineering Consulting Co Ltd
Current assignee: Yellow River Engineering Consulting Co Ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2022-05-10
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses an arrangement structure of a combined smoke exhaust machine room of a subway station entrance and exit, which comprises a smoke exhaust machine room arranged on the ground at the rear part of the subway station ground entrance and exit, wherein a concrete framework of the smoke exhaust machine room and a ceiling concrete framework of the subway station ground entrance and exit are of an integral structure; a rainproof shutter window is arranged on a side wall of the smoke exhaust machine room, a hole is formed in a floor of the smoke exhaust machine room, and the hole is communicated with a smoke exhaust air pipe on a suspended ceiling of an underground access of a subway station; an access door is arranged on the rear wall of the smoke exhaust machine room, a smoke exhaust fan is hung in the smoke exhaust machine room, the air inlet of the smoke exhaust fan is communicated with the hole through an air inlet fireproof valve, and the air outlet of the smoke exhaust fan is communicated with the rainproof louver window through an air outlet fireproof valve and is communicated with the outside. The utility model not only avoids the defects of arranging a machine room underground and arranging a smoke exhaust air shaft on the ground, but also reduces the civil engineering cost and the influence on the ground landscape.

Description

Arrangement structure of combined building smoke exhaust machine room at entrance and exit of subway station

Technical Field

The utility model relates to an arrangement structure of a subway station entrance and exit, in particular to an arrangement structure of a smoke exhaust machine room jointly built at the subway station entrance and exit.

Background

With the development of urban public transport, subways gradually become the priority for the development of urban public transport. Subway stations are usually located in urban centers, the situation of the geographic positions of the subway stations is complex, the ground access of some subway stations needs to be considered to be combined with peripheral businesses, and a plurality of factors such as municipal street crossing, passenger flow suction, line transfer and the like need to be considered for some subway stations, so that the length from the ground access of the subway stations to a buried section exceeds 60 m. According to the requirements of subway design fire standards (GB 51298-2018), subway design specifications (GB 50157-2013) and building smoke and smoke prevention and discharge system technical standards (GB 51251-2017), when the length of an entrance exceeds 60m, a mechanical smoke and discharge facility needs to be arranged, and the smoke and discharge facility needs to be arranged in a separate emission machine room.

At present, the commonly adopted method in engineering is as follows: the underground access of the subway station is locally expanded close to the staircase of the building, and an independent smoke exhaust machine room is arranged. The method has the advantages of large underground space occupation, high civil engineering investment, more bent exhaust pipelines, large wind resistance, high fan pressure head configuration and large influence of the independent smoke exhaust air shaft on peripheral landscapes.

Disclosure of Invention

The utility model aims to provide an arrangement structure of a combined smoke exhaust machine room at an entrance and an exit of a subway station, which has the advantages of strong applicability, low cost and small landscape influence.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the arrangement structure of the combined smoke exhaust machine room of the subway station entrance and exit comprises the smoke exhaust machine room arranged on the ground at the rear part of the subway station ground entrance and exit, wherein a concrete framework of the smoke exhaust machine room and a ceiling concrete framework of the subway station ground entrance and exit are of an integral structure; the side wall of the smoke exhaust machine room is provided with a rainproof louver window, and the floor of the smoke exhaust machine room is provided with a hole which is communicated with a smoke exhaust air pipe on a suspended ceiling of an underground access of a subway station; an access door is arranged on the rear wall of the smoke exhaust machine room, a smoke exhaust fan is hung in the smoke exhaust machine room, the air inlet of the smoke exhaust fan is communicated with the hole through an air inlet fire damper, and the air outlet of the smoke exhaust fan is communicated with the rainproof louver window through an air outlet fire damper and is communicated with the outside of the room.

Preferably, the hole is formed in the floor of the induced draft fan room on the side opposite to the rainproof louver window.

Preferably, a lighting shutter is arranged on the rear wall of the smoke exhaust machine room.

The utility model fully utilizes the space at the rear part of the ground access of the subway station, and arranges the smoke exhaust machine room at the rear part of the ground access of the subway station to form a whole with the ground access on the premise of keeping the design scheme of the whole ground access of the subway station unchanged, thereby meeting the specification requirement. The machine room is arranged underground, the smoke exhaust air shaft is arranged on the ground, the civil construction cost is reduced, and the influence on the ground landscape is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic sectional view taken along the line a-a of fig. 1 (the smoke exhaust fan is hidden).

Fig. 3 is an enlarged schematic view of the cross section B-B of fig. 1.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1-3, the arrangement structure of the combined construction smoke exhaust machine room at the subway station entrance/exit comprises a smoke exhaust machine room 2 arranged on the ground behind the subway station ground entrance/exit 1, and a concrete framework of the smoke exhaust machine room 2 and a ceiling concrete framework 3 of the subway station ground entrance/exit 1 are of an integral structure.

The side wall of the smoke exhaust machine room 2 is provided with a rainproof louver window 4, the height of the rainproof louver window 4 from the ground can be determined by combining the height of a subway station ground access and exit and the form of a smoke exhaust fan, the principle is that rainwater can be prevented from entering the smoke exhaust fan through the rainproof louver window 4 or entering the station through an air pipe, and the smoke can be guaranteed to be smoothly discharged outdoors.

A hole is arranged on the floor of the smoke exhaust machine room at one side opposite to the rainproof louver window 4, and the hole is communicated with a smoke exhaust air pipe on a suspended ceiling of an underground access of a subway station; be provided with access door 5 and daylighting shutter 6 on the back wall of smoke exhaust machine room 2, make things convenient for the maintainer work, satisfy natural draft and daylighting demand simultaneously.

A smoke exhaust fan 7 is hung in the smoke exhaust machine room 2, an air inlet of the smoke exhaust fan 7 is communicated with the hole through an air inlet fireproof valve 8, and the height of the air inlet fireproof valve 8 from the floor of the smoke exhaust machine room 2 is not more than 200mm, so that the standard requirement is met; the air outlet of the smoke exhaust fan 7 is communicated with the rainproof louver window 4 through the air outlet fireproof valve 9 and is communicated with the outside.

Claims

1. The utility model provides an arrangement structure of smoke exhaust machine room is built jointly to subway station access & exit which characterized in that: the concrete framework of the smoke exhaust machine room and the ceiling concrete framework of the subway station ground access are of an integrated structure; the side wall of the smoke exhaust machine room is provided with a rainproof louver window, and the floor of the smoke exhaust machine room is provided with a hole which is communicated with a smoke exhaust air pipe on a suspended ceiling of an underground access of a subway station; an access door is arranged on the rear wall of the smoke exhaust machine room, a smoke exhaust fan is hung in the smoke exhaust machine room, the air inlet of the smoke exhaust fan is communicated with the hole through an air inlet fire damper, and the air outlet of the smoke exhaust fan is communicated with the rainproof louver window through an air outlet fire damper and is communicated with the outside of the room.

2. The arrangement structure of the combined smoke exhaust machine room at the entrance and the exit of the subway station as claimed in claim 1, wherein: the holes are formed in the floor of the smoke exhaust machine room, and the holes are formed in the floor, opposite to one side of the rainproof louver window.

3. The arrangement structure of the combined smoke exhaust machine room at the entrance and the exit of the subway station as claimed in claim 1 or 2, wherein: and a lighting shutter is arranged on the rear wall of the smoke exhaust machine room.