Horizontal and vertical air supply combined fire escape system capable of realizing collision effect in breathing zone and air supply tunnel

An escape system and combined technology, which is applied in ventilation system, pipeline layout, space heating and ventilation, etc., can solve the problems that the smoke cannot be completely eliminated, the amount of secondary excavation is large, and the space occupied is large, so as to reduce the Tunnel excavation volume, ensuring fresh air demand, and the effect of short time

Active Publication Date: 2013-08-28
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will lead to two problems: First, although the average concentration in the tunnel as a whole has decreased, due to the continuous release of smoke from the fire source, this part of the smoke cannot be completely eliminated, which will result in still relatively high concentrations of smoke in the tunnel. high concentration of smoke
Second, although the average concentra

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Horizontal and vertical air supply combined fire escape system capable of realizing collision effect in breathing zone and air supply tunnel
  • Horizontal and vertical air supply combined fire escape system capable of realizing collision effect in breathing zone and air supply tunnel
  • Horizontal and vertical air supply combined fire escape system capable of realizing collision effect in breathing zone and air supply tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0044] Specific embodiments of the present invention are provided below, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solutions of the present application all fall within the scope of protection of the present invention.

[0045] Comply with the above technical solutions, such as Figure 7 , Figure 8 As shown, the heights of the upper and lower edges of the smoke-shielding vertical wall are 2m and 1.5m respectively; the interface size of the plenum 1 is 2m×1m; the heights of the upper and lower edges of the first nozzle (3) are respectively 2m and 1.5m. Both the width of the second nozzle 4 and the first nozzle 3 are 0.5m; the cross-sectional size of the air supply duct 2 is 0.5m×0.5m. The blowing speeds of the first nozzle 3 and the second nozzle 4 are respectively 0.7 m / s and 0.3 m / s.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a horizontal and vertical air supply combined fire escape system capable of realizing a collision effect in a breathing zone and an air supply tunnel. The horizontal and vertical air supply combined fire escape system comprises static-pressure tanks, air supply pipes and smoke screens; the static-pressure tanks are arranged in the wall of the tunnel and are connected with the air supply pipes; first nozzles are arranged at lower ends of the static-pressure tanks, and second nozzles are arranged on side surfaces, which are close to the tunnel, of the static-pressure tanks; each first nozzle discharges air in the horizontal direction, and each second nozzle discharges air in the vertical downward direction; the vertical smoke screens are fixed to side walls, which are close to one side of the tunnel, of the second nozzles; lower edges of the static-pressure tanks are flush with upper edges of the smoke screens, and upper edges of the first nozzles are flush with lower edges of the second nozzles; and the air supply speed of each first nozzle is 0.3m/s, and the air supply speed of each second nozzle is 0.7m/s. The horizontal and vertical air supply combined fire escape system has the advantages that jet flows sprayed by each two corresponding nozzles are collided with each other in the breathing zone for escape personnel, so that a fire escape channel which penetrates the integral tunnel can be formed; and the tunnel excavation volume is obviously reduced, and only the static-pressure tanks need to be arranged at corners of the tunnel.

Description

technical field [0001] The invention relates to a tunnel fire escape system, in particular to a tunnel fire escape system in which the breathing zone collides with the air supply combined with horizontal and vertical air supply. Background technique [0002] Tunnels are the product of the rapid development of modern cities. Since the second half of the 20th century, the urban areas of various countries in the world have gradually expanded, and the urbanization process has gradually accelerated. This accelerated urbanization process has led to the need for urban traffic with a large transportation volume, fast speed, low energy consumption, and low pollution. , Urban transportation with a small footprint. Tunnel Jiangxi Copper was conceived and born during this period. As an advanced means of transportation, tunnel has incomparable advantages compared with traditional transportation methods. However, with the development of tunnel traffic, vicious accidents such as tunnel ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F24F7/06F24F13/06
Inventor 高然李安桂罗娜张莹
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products