Curtain type regulating air valve

A technology of curtains and air valves, which is applied in the direction of valve devices, engine components, mechanical equipment, etc., can solve the problems of poor sealing performance, smoke leakage, large air leakage, etc., and achieve the effect of controlling smoke leakage and simple structure

Active Publication Date: 2011-04-06
ZHEJIANG JINDUN FANS HLDG
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of the existing air valve blades, such as large number of blades, poor sealing performance, large air leakage, and a large amount of smoke leakage in the event of a fire, the present invention provides a curtain-type regulating air valv

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
  • Curtain type regulating air valve
  • Curtain type regulating air valve
  • Curtain type regulating air valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Such as figure 1 , figure 2 , image 3 Shown: the bottom frame (1) combined with channel steel, the molded outer frame (2) and the curtain guide frame (3), the stiffener (4) made of flat steel, and the perforated connection form an integral frame. The two ends of the reelable roller (5) are fixed on the upper support (7) through the bearing seat (6), the upper support (7) is welded on the bottom frame (1), and the bearing seat (6) is connected by bolts (8) On the upper support (7), and level with a spirit level, the roller (5) and the bearing seat (6) can be rolled into a line and installed on the bottom frame (1), and fixed by welding. The guide wheel bearing base (9) is welded with the bottom frame (1) first, and the curtain guide wheel (10), curtain guide shaft I (11), and curtain guide shaft II (12) are installed on the curtain guide shaft Guide bearing seat (13), connect and assemble curtain guide shaft I (11) and curtain guide shaft II (12) with flange (16), c...

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 relates to a regulating air valve for opening and closing an exhaust air flareout of an underground railway tunnel, in particular to a curtain type regulating air valve which can effectively prevent gas fume from leaking when a fire disaster happens in the tunnel. The regulating air valve comprises a framework and a reelable roller with a curtain, wherein both ends of the reelable roller are fixed at the upper end of the framework through bearing blocks; the bottom end of the framework is provided with a guide wheel bearing block; a curtain guide shaft is arranged below the framework; the curtain guide shaft is provided with a curtain guide wheel and a guide bearing block; the guide bearing block is matched with the guide wheel bearing block; the curtain guide wheel is provided with a tensioning belt connected with the curtain in a matching way; and a transmission shaft with a speed reducer and a motor is arranged on the same side of the reelable roller and the curtain guide shaft. The regulating air valve can increase the area of an air outlet during ventilation, has low air leaking rate when closed, can effectively control the smoke leakage, makes personnel evacuate in time and reduces losses of life and property.

Description

technical field [0001] The invention relates to a regulating air valve for opening and closing the air exhaust flaring of a subway tunnel, in particular to a curtain type regulating air valve which can effectively prevent smoke from leaking when a fire occurs in the tunnel. Background technique [0002] At present, the smoke exhaust regulating damper used in the subway tunnel generally uses a multi-electric disc-type split regulating damper, which is composed of dozens of blades assembled together, and assembled in groups, and this damper enters and exits The air area is small, there are many parts, and the assembly requirements are excellent. A little negligence will result in poor sealing and a large amount of air leakage. When a fire occurs in the tunnel, the air valve will be closed. Due to the large number of blades, it cannot play the role of smoke sealing. And cause the loss of life and property caused by a large amount of smoke leakage. Contents of the invention ...

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): F16K13/00
Inventor 徐意根徐月鑫顾丙祥虞志新娄江
Owner ZHEJIANG JINDUN FANS HLDG
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap