CN2758487Y - Tunnel fire control smoke exhausting blast hole - Google Patents
Tunnel fire control smoke exhausting blast hole Download PDFInfo
- Publication number
- CN2758487Y CN2758487Y CN 200420108729 CN200420108729U CN2758487Y CN 2758487 Y CN2758487 Y CN 2758487Y CN 200420108729 CN200420108729 CN 200420108729 CN 200420108729 U CN200420108729 U CN 200420108729U CN 2758487 Y CN2758487 Y CN 2758487Y
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- blade
- middle frame
- smoke evacuation
- tunnel fire
- housed
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Abstract
The utility model discloses a novel tunnel fire protection smoke evacuation air outlet, which is characterized in that the novel tunnel fire protection smoke evacuation air outlet is provided with a middle frame; a fixed shaft is arranged on the middle frame; the fixed shaft is provided with blades; the weights of the blades which are arranged on both side parts of the fixed shaft are different; the middle frame is also provided with a blade switching control mechanism. The utility model is characterized in that the novel tunnel fire protection smoke evacuation air outlet can be automatically opened by gravity. The utility model has the advantages of simple structure, low cost, high safety factor and low investment cost.
Description
Technical field:
The utility model relates to a kind of tunnel device, be a kind of in the tunnel device of getting rid of flue gas as required in service, specifically, be a kind of novel tunnel fire-fighting smoke evacuation air port.
Background technology:
The domestic tunnel that has built up operation mostly adopts the method design of vertical air draft at present.Consider fire incident operating mode and tunnel car blockage situation during design, so the tunnel jet blower that adopts is just a lot.So just run into three problems.The firstth, power consumption, blower fan all is the high blast of requirement, big air quantity, power of motor is big, and the many power consumptions of blower fan quantity are big; The secondth, environmental requirement, jet blower rotating speed height is so produce big noise; The 3rd is safety, and as the breaking out of fire accident, jet blower directly contacts with high-temperature flue gas, the inherently safe performance of blower fan is affected, if certain breaking out of fire accident in tunnel all can be full of toxic and harmful in the whole tunnel, the influence surface of disaster can enlarge.Domestic 3 kilometers of having built up all adopt the method design of vertical air draft with interior tunnel at present.Along with the development of tunnel construction technology, the Tunnel Design development of technology, now the tunnel diameter of building comes greatly more, and distance is more and more longer, and the vehicle flowrate in tunnel gets more and more, and the method for designing of the vertical air draft in tunnel shows more and more that it is not scientific.The Chong Su tunnel, Shanghai of building Xiang Yin Lu tunnel, Shanghai and be about to building is all greater than 3 kilometers, the air draft Ventilating Design Method that has adopted vertical and horizontal to combine first.Make full use of tunnel when operation vehicle when both normally moving and enter the tunnel and go out the Piston Wind in tunnel and air-flow that wagon flow drives when advancing, so jet blower significantly reduces in the tunnel.In the upper design in tunnel fire-fighting smoke evacuation air port, when breaking out of fire accident and car blockage, by the fire-fighting smoke evacuation air port that integrated control system is opened corresponding site, startup accident smoke extractor exhaust fan is drained poison gas rapidly.Be subjected to the place of accident impact only to be confined to the old place like this, can not have influence on other place in the tunnel.The Design of ventilation that vertical and horizontal combine has significantly reduced the quantity of jet blower, reach requirement energy-conservation and the minimizing cost of investment, and ventilation effect is good, particularly can drain poison gas rapidly when fire incident, disaster is dropped to minimum.But existing tunnel can not adapt with it with fire-fighting smoke evacuation air port.
Summary of the invention:
The purpose of this utility model provides a kind of energy and opens automatically by gravity; Simple in structure, price is low, the novel tunnel fire-fighting smoke evacuation air port that safety factor is high.
Technical solution of the present utility model is: a kind of novel tunnel fire-fighting smoke evacuation air port, it is characterized in that: middle frame is arranged, fixed axis is housed on middle frame, blade is housed on the fixed axis, blade is inequality in the weight of the part of fixed axis both sides, and blade open and close controlling mechanism also is housed on the middle frame.
Blade open and close controlling mechanism described in the utility model is the electromagnet mechanism that is loaded on the middle frame end sides.Valve buckle is arranged in the electromagnet mechanism, electromagnet is housed on the valve buckle, back-moving spring and blade dop are housed in the valve buckle.Fixed axis on the middle frame has at least one group.Can adopt the fixed axis on middle frame in the utility model is two groups, one group of blade is housed on every group respectively, and the blade on two groups of fixed axis constitutes the door-opening type structure.
The beneficial effects of the utility model are: can open automatically by gravity; Structure is simple relatively, and is cheap, the safety factor height, and cost of investment is low.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the structural representation in a kind of novel tunnel fire-fighting smoke evacuation of the present utility model air port;
Fig. 2 is that the C-C of Fig. 1 is to one of view;
Fig. 3 is that the C-C of Fig. 1 is to two of view;
Fig. 4 is one of partial enlarged drawing of the electromagnet mechanism among Fig. 1;
Fig. 5 be the electromagnet mechanism among Fig. 1 partial enlarged drawing two.
The specific embodiment:
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 have described an embodiment of the present utility model jointly.In this embodiment, middle frame 1 is arranged, fixed axis 3 is housed on middle frame 1, blade 2 is housed on the fixed axis 3, blade 2 is inequality in the weight of the part of fixed axis both sides, and blade 2 open and close controlling mechanisms 4 also are housed on the middle frame 1.Described blade open and close controlling mechanism 4 is for being loaded on the electromagnet mechanism of middle frame end sides.Valve buckle 41 is arranged in the electromagnet mechanism, electromagnet 42 is housed on the valve buckle 41, back-moving spring 43 and blade dop 44 are housed in the valve buckle 41.Fixed axis 3 on the middle frame 1 is two groups (or being one group of other above numerical value), and the blade 2 that is equipped with respectively on 2, two groups of fixed axis 3 of one group of blade on every group constitutes the door-opening type structures.
Main characteristics of the present utility model are: first adopts the asymmetric principle of leaf weight, can open automatically by gravity; Second adopts structure simple relatively, and cheap electromagnet 42 is controlled the switch of air port blade 2.Increase safety factor like this, lowered cost of investment.
Varying in weight of the center line both sides of design blade 2 during blade 2, one stresses, and opposite side is light, and when the tunnel normally moved, fire-fighting smoke evacuation air port blade 2 was blocked by electromagnet 42, is in the complete shut-down state, as the outage among Fig. 2 (closing) state; When the tunnel runs into fire incident or traffic congestion state, the tunnel integrated control system provides the signal of telecommunication, electromagnet 42 actions of fire-fighting smoke evacuation wind day at top, location have an accident, blade 2 is inhomogeneous because of fixed axis 3 both sides weight, and rely on gravity to open automatically, at this moment be in full-gear, as energising (standard-sized sheet) state among Fig. 3.This moment, the accident blower fan began to start, and poison gas is discharged from fire-fighting smoke evacuation air port rapidly.Accident is eliminated fire-fighting smoke evacuation air port, back and is checked the back hand-reset by the maintenance personal, and the tunnel normally moves.
Claims (5)
1, a kind of novel tunnel fire-fighting smoke evacuation air port, it is characterized in that: middle frame is arranged, fixed axis is housed on middle frame, blade is housed on the fixed axis, blade is inequality in the weight of the part of fixed axis both sides, and blade open and close controlling mechanism also is housed on the middle frame.
2, novel tunnel fire-fighting according to claim 1 smoke evacuation air port, it is characterized in that: blade open and close controlling mechanism is the electromagnet mechanism that is loaded on the middle frame end sides.
3, novel tunnel fire-fighting according to claim 2 smoke evacuation air port is characterized in that: valve buckle is arranged in the electromagnet mechanism, electromagnet is housed on the valve buckle, back-moving spring and blade dop are housed in the valve buckle.
4, according to claim 1,2,3 described novel tunnel fire-fighting smoke evacuation air ports, it is characterized in that: the fixed axis on the middle frame has at least one group.
5, according to claim 1,2,3 described novel tunnel fire-fightings smoke evacuation air ports, it is characterized in that: the fixed axis on the middle frame has two groups, one group of blade is housed on every group respectively, and the blade on two groups of fixed axis constitutes the door-opening type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108729 CN2758487Y (en) | 2004-11-10 | 2004-11-10 | Tunnel fire control smoke exhausting blast hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108729 CN2758487Y (en) | 2004-11-10 | 2004-11-10 | Tunnel fire control smoke exhausting blast hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2758487Y true CN2758487Y (en) | 2006-02-15 |
Family
ID=36078629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420108729 Expired - Fee Related CN2758487Y (en) | 2004-11-10 | 2004-11-10 | Tunnel fire control smoke exhausting blast hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2758487Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437745A (en) * | 2016-09-30 | 2017-02-22 | 西南交通大学 | Shaft type emergency exit structure system of intercity railway tunnel |
-
2004
- 2004-11-10 CN CN 200420108729 patent/CN2758487Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437745A (en) * | 2016-09-30 | 2017-02-22 | 西南交通大学 | Shaft type emergency exit structure system of intercity railway tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |