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CN-121976621-A - Underground safety evacuation facility for car dumper room

CN121976621ACN 121976621 ACN121976621 ACN 121976621ACN-121976621-A

Abstract

The invention discloses a car dumper room underground safety evacuation facility, which comprises an underground part and an overground closed greenhouse covered above the underground part, wherein an underground operation space corresponding to the car dumper is arranged in the underground part, a smoke prevention front room is arranged between the smoke prevention stairway and the underground operation space, the smoke prevention stairway and the smoke prevention front room are separated by a solid wall body with a fireproof door, the smoke prevention stairway is communicated with an outdoor safety area through a horizontal conversion channel, and an air supply system is arranged in the smoke prevention front room, the smoke prevention stairway and/or the horizontal conversion channel. The scheme physically isolates the evacuation path from a production area with high fire hazard, provides a smokeless safe evacuation environment for personnel, and solves the contradiction between the standard requirement of the underground evacuation channel on the first layer for direct outdoor and the process environment-friendly requirement of the ground large-area closure.

Inventors

  • Xiong can
  • LIU PU
  • MENG LING
  • CAO ZHEN
  • DONG HAOJUN
  • XING JIAN
  • CHEN XIAOFENG

Assignees

  • 中国电力工程顾问集团华北电力设计院有限公司
  • 国电电力大同湖东发电有限公司

Dates

Publication Date
20260505
Application Date
20260209

Claims (10)

  1. 1. A car dumper room underground safety evacuation facility is characterized in that the car dumper room comprises an underground part (1) and an overground closed greenhouse (2) covered above the underground part (1), a car dumper (3) is arranged in the overground closed greenhouse (2), an underground operation space (4) corresponding to the car dumper (3) is arranged in the underground part (1), a smoke-proof stairway (5) is further arranged in the underground part (1), the smoke-proof stairway (5) is located on the outer side of the underground operation space (4), a smoke-proof front chamber (6) is arranged between the smoke-proof stairway (5) and the underground operation space (4), the smoke-proof stairway (5) is separated from the underground operation space (4) through a solid wall body with fireproof doors, the smoke-proof stairway (5) is communicated with an outdoor safety area through a horizontal switching channel, a stairway (7) is arranged in the underground part (1), a smoke-proof front chamber (6) is arranged between the smoke-proof stairway (5) and the underground operation space (4), and a smoke-proof front chamber (5) is arranged in the horizontal switching system or the smoke-proof front chamber (5) is arranged.
  2. 2. The underground safe evacuation facility of the dumper room according to claim 1, wherein the horizontal conversion channel comprises an underground refuge conveying channel (8), the upper end of the smoke-proof stairwell (5) is located underground and separated from the above-ground closed greenhouse (2), the inner side end of the underground refuge conveying channel (8) is communicated with the outer side of the smoke-proof stairwell (5), the outer side end of the underground refuge conveying channel (8) is located outside the vertical projection range of the above-ground closed greenhouse (2), and the outer side end of the underground refuge conveying channel (8) is communicated with the outside through an outlet stairwell (9).
  3. 3. The underground safety evacuation facility for the car dumper chamber according to claim 2, wherein the outlet stairwell (9) protrudes out of the outer wall of the overground closed greenhouse (2) and is arranged close to the outer wall of the overground closed greenhouse (2), a door which is directly communicated with the outside is arranged on the overground first layer of the outlet stairwell (9), and an outlet stairwell air supply device and a channel layer (10) are arranged above the overground first layer of the outlet stairwell (9).
  4. 4. The underground safe evacuation facility of the car dumper chamber according to claim 1, wherein the horizontal conversion channel comprises a ground closed channel (11), the ground closed channel (11) is positioned on the ground and is positioned in the vertical projection range of the ground closed greenhouse (2), the ground closed channel (11) is separated from the inside of the ground closed greenhouse (2), the outer side end of the ground closed channel (11) penetrates through the outer wall of the ground closed greenhouse (2) and is communicated with the outside, and the upper end of the smoke-proof stairwell (5) is communicated with the ground closed channel (11).
  5. 5. The underground safety evacuation facility of the dumper chamber according to claim 4, wherein the ground closed channel (11) is arranged close to the inner side of the outer wall of the ground closed greenhouse (2), a through outdoor door is arranged at the first layer of the ground closed channel (11), and a ground closed channel air supply device and a channel layer (12) are arranged above the first layer of the ground closed channel (11).
  6. 6. The underground safety evacuation facility of a car dumper chamber according to claim 4, wherein the part of the ground closed channel (11) in the ground closed greenhouse (2) is a closed reinforced concrete structure.
  7. 7. A dumper chamber underground safety evacuation facility according to any one of claims 1 to 6, wherein the smoke-proof stairwell (5) is at least two arranged independently and discretely.
  8. 8. A dumper chamber underground safety evacuation facility according to any one of claims 1 to 6, wherein the smoke-proof front chamber (6) is located inside the underground working space (4).
  9. 9. A car dumper room underground safety evacuation facility according to claim 8, characterized in that the underground working space (4) has at least two floors, in each of which a smoke-proof front room (6) is provided, the smoke-proof front room (6) being connected to the landing of the stairs (7).
  10. 10. A dumper chamber underground safety evacuation facility according to any one of claims 1 to 6, wherein the horizontal transfer passage is connected to the landing of the stairs (7).

Description

Underground safety evacuation facility for car dumper room Technical Field The invention belongs to the technical field of industrial building fireproof safety, and particularly relates to an underground safety evacuation facility of a car dumper chamber. Background The dumper room is a key industrial building for receiving a large amount of bulk coal in a railway transportation mode in a thermal power plant, and is internally provided with and operates a dumper system. In order to meet the environmental protection requirement, the overground part of the dumper room is usually provided with a closed greenhouse to prevent dust from diffusing during coal unloading operation, and the underground part of the dumper room is provided with a reinforced concrete coal unloading hopper and a corresponding underground floor according to process arrangement to match the height of the coal hopper with the arrangement of an underground coal conveying belt conveyor. The coverage of a closed greenhouse is typically much greater than the footprint of the subsurface portion (as shown in fig. 1). At present, a safety evacuation scheme is generally adopted in the underground part of the car dumper room, wherein steel stairs are arranged on each floor of the underground as vertical traffic facilities, and people are evacuated to the ground layer through the steel stairs and then evacuated to the outside through a door on the outer wall of a closed greenhouse. The existing scheme has obvious potential safety hazards that firstly, an underground evacuation steel ladder is not effectively fireproof separated from an underground coal-containing production operation space, so that an evacuation path is in a fire hazard environment, and secondly, after people arrive at a ground layer, a safety exit cannot be directly communicated outdoors, still needs to pass through a ground operation area where a fire disaster possibly occurs, and an independent and effective safety evacuation path cannot be formed. Disclosure of Invention In order to solve the technical problems that in the existing underground safety evacuation scheme of the dumper chamber, the evacuation path is not isolated from a fire hazard area, and the ground outlet cannot be directly communicated with the outside, the invention provides the underground safety evacuation facility of the dumper chamber, a complete, independent and smoke-proof safety evacuation system is constructed, and the building fire-proof level and the personnel evacuation safety guarantee level of the underground part of the dumper chamber can be obviously improved. According to the technical scheme, the invention provides a car dumper room underground safety evacuation facility, which comprises an underground part and an overground closed greenhouse covering the underground part, wherein a car dumper is arranged in the overground closed greenhouse, an underground operation space corresponding to the car dumper is arranged in the underground part, a smoke-proof stairway is also arranged in the underground part, the smoke-proof stairway is positioned outside the underground operation space, a smoke-proof front room is arranged between the smoke-proof stairway and the underground operation space, the smoke-proof stairway and the smoke-proof front room and between the smoke-proof front room and the underground operation space are separated by a solid wall body with fireproof doors, the smoke-proof stairway is communicated with an outdoor safety area through a horizontal conversion channel, stairs are arranged in the smoke-proof stairway, the stairs are connected with the horizontal conversion channel, and an air supply system is arranged in the smoke-proof front room, the smoke-proof stairway and/or the horizontal conversion channel. In some embodiments, the horizontal transfer passage comprises an underground evacuation conveying passage, the upper end of the smoke-proof stairwell is located underground and separated from the above-ground closed greenhouse, the inner end of the underground evacuation conveying passage is communicated with the outside of the smoke-proof stairwell, the outer end of the underground evacuation conveying passage is located outside the vertical projection range of the above-ground closed greenhouse, and the outer end of the underground evacuation conveying passage is communicated with the outside of the room through the outlet stairwell. In some embodiments, the exit stairwell protrudes outside and is arranged close to the outside of the above-ground closed greenhouse outer wall, the first floor of the exit stairwell is provided with a door which is directly communicated with the outside, and the upper part of the first floor of the exit stairwell is provided with an exit stairwell air supply device and a channel layer. In some embodiments, the horizontal transfer channel comprises a ground closed channel, wherein the ground closed channel is positioned on the ground and withi