CN113482688A - Fresh air supply system in tunnel and use method thereof - Google Patents
Fresh air supply system in tunnel and use method thereof Download PDFInfo
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- CN113482688A CN113482688A CN202110807606.6A CN202110807606A CN113482688A CN 113482688 A CN113482688 A CN 113482688A CN 202110807606 A CN202110807606 A CN 202110807606A CN 113482688 A CN113482688 A CN 113482688A
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- gas
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Ventilation (AREA)
Abstract
The invention provides a fresh air supply system in a tunnel and a using method thereof, and relates to the field of tunnel engineering. The embodiment of the application provides a fresh air supply system in tunnel, including the tunnel body, still including smoke transducer, fan and the gas-supply pipe that connects gradually, the fan is installed in the tunnel portal outside of tunnel body, and a plurality of equidistant distribution's exhaust hole have been seted up to the gas-supply pipe lateral wall, and even gas baffle is all installed to every exhaust hole department, and the gas that every exhaust hole was discharged forms the air pocket through even gas baffle. According to the invention, the fan is arranged outside the tunnel, fresh air is conveyed to the tunnel body along the air conveying pipe by the fan, and meanwhile, the air equalizing baffle is arranged at the position of the air conveying pipe provided with the exhaust holes, so that the air pressure at the position can be improved, further, air masses of the fresh air can be formed for the breath of trapped people, a plurality of air masses can be connected into a fresh air corridor, the trapped people can rapidly move by using the corridor, and the suction of smoke or toxic gas in the tunnel is avoided.
Description
Technical Field
The invention relates to the field of tunnel engineering, in particular to a fresh air supply system in a tunnel and a using method thereof.
Background
A tunnel is a building constructed underground or underwater or in a mountain, with railways or roads for motor vehicles to pass through. The tunnel can be divided into three categories of mountain tunnels, underwater tunnels and urban tunnels according to the positions of the tunnels. A tunnel traversing from a mountain or under a hill to shorten the distance and avoid a large slope is called a mountain tunnel; underwater tunnels passing under a river or sea floor to cross a river or channel; urban tunnels are used to cross underground cities to meet the needs of railways to pass through large cities. The most constructed of these three types of tunnels are mountain tunnels.
At present, on the existing roads and railway tunnels in China, the number of the tunnels is more than tens of thousands, and various accidents can occur on the tunnels due to various reasons, such as: collapse, fire and toxic and harmful gas and liquid leakage accidents occur in the tunnel. The injuries such as poisoning, suffocation and the like of the people in the accident are more than the condition that the injuries caused by the accident cause the rising of the number of the people in distress; it is desirable to provide an air supply system for the tunnel.
The prior art air supply system generally installs an axial flow fan in the tunnel, when the axial flow fan works, the pressure behind the fan is reduced to cause the blown front air to return from the lower part to the rear part, if the air is harmful gas, the upper part and the lower part in the tunnel are filled with the harmful gas.
Disclosure of Invention
The invention aims to provide a fresh air supply system in a tunnel, which can provide fresh air for people trapped in the tunnel with accidents and reduce the danger of accidents.
Another object of the present invention is to provide a method for using a fresh air supply system in a tunnel, which can improve the survival rate of trapped persons.
The embodiment of the invention is realized by the following steps:
in a first aspect, the embodiment of the application provides a fresh air supply system in tunnel, including the tunnel body, still including smoke transducer, fan and the gas-supply pipe that connects gradually, the fan install in the tunnel mouth outside of tunnel body, the gas-supply pipe with smoke transducer all install in the inside wall of tunnel body, the gas-supply pipe certainly the one end port of tunnel body extends to other end port, a plurality of equidistant distribution's exhaust hole, every are seted up to the gas-supply pipe lateral wall the even gas baffle of exhaust hole department all installs, every the gas that the exhaust hole discharged passes through even gas baffle forms the air pocket.
In some embodiments of the present invention, the air delivery pipes are provided in plural, and the plural air delivery pipes are sequentially installed in parallel and connected to the fan.
In some embodiments of the present invention, the lengths of the air pipes decrease from bottom to top or from top to bottom in sequence.
In some embodiments of the present invention, the tunnel body further includes an air equalizing jar, the blower is connected to the plurality of air pipes through the air equalizing jar, and the air equalizing jar is installed outside the tunnel opening of the tunnel body.
In some embodiments of the invention, the tunnel further includes a ventilation pipe, the fan is connected to the air-equalizing canister through the ventilation pipe, and the fan is far away from the tunnel opening of the tunnel body.
In some embodiments of the present invention, the number of the tunnel bodies is multiple, a passage is formed between any two tunnel bodies, the gas pipe is located at an opening of the passage and has a plurality of exhaust holes distributed adjacently, and the exhaust holes exhaust gas to form an air curtain.
In some embodiments of the invention, bosses are respectively arranged at the bottoms of two opposite sides in the tunnel body, and the gas pipe is positioned above the bosses and on one side of the head of the human body.
In some embodiments of the present invention, the gas delivery pipe comprises a PUR polyurethane hose.
In some embodiments of the invention, the fan comprises a blower.
In a second aspect, an embodiment of the present application provides a method for using a fresh air supply system in a tunnel, including the following steps:
when an accident occurs to the tunnel body, remotely starting the fan by the smoke sensor;
fresh air conveyed by the fan is uniformly distributed into a plurality of air conveying pipes through the air equalizing pot and is discharged into the tunnel body;
the trapped person in the tunnel body can breathe through the fresh air discharged from the air outlet of the air delivery pipe, and meanwhile, the trapped person can ventilate in each air mass, move to the next air mass and wait for rescue until moving to a safe position.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:
first aspect, this application embodiment provides a fresh air supply system in tunnel, including the tunnel body, still including the smoke transducer who connects gradually, fan and gas-supply pipe, the fan is installed in the tunnel face outside of tunnel body, gas-supply pipe and smoke transducer all install in the inside wall of tunnel body, the gas-supply pipe extends from the one end port to the other end port of tunnel body, a plurality of equidistant distribution's exhaust hole has been seted up to the gas-supply pipe lateral wall, even gas baffle is all installed in every exhaust hole department, the gas that every exhaust hole discharged forms the air pocket through even gas baffle. The tunnel body is a passage for vehicles or people to pass through; the fan is used for discharging fresh air outside the tunnel into the tunnel, and the air pipe can be used for quickly transmitting the outside air into the tunnel; because the fan is positioned outside the tunnel, the air conveyed by the fan cannot carry toxic air or air with smoke dust in the tunnel, and the trapped people can be ensured to be fresh air in the respiratory tract in the tunnel body; the length of the gas pipe can be preset according to the length of the tunnel body when the system is assembled, so that the gas pipe can penetrate through the tunnel body, meanwhile, exhaust holes formed in the gas pipe at equal intervals are used for conveying fresh air into the tunnel body, trapped people at any positions in the tunnel body can breathe the outside fresh air, the trapped people can move along the extending direction of the gas pipe and can gradually move to a safer area along the direction of the exhaust holes to wait for rescue, the survival rate of the trapped people is greatly improved, and a longer rescue golden period can be provided for the rescue people; the air homogenizing baffle plate arranged at each exhaust hole can enable air exhausted by the air conveying pipe to form air masses around the exhaust holes, and because the pressure of the air masses is greater than the pressure of smoke gas in the tunnel, the smoke gas can be blocked outside the air masses, trapped people can enter the air masses to breathe, and the trapped people can move along the air masses formed in sequence; according to the invention, the fan is arranged outside the tunnel, fresh air is conveyed to the tunnel body along the air conveying pipe by using the fan, meanwhile, the air pressure at the position can be improved by arranging the air equalizing baffle at the position of the air conveying pipe provided with the exhaust holes, so that air groups of the fresh air can be formed for the trapped people to breathe, a plurality of air groups can be connected into a fresh air corridor, the trapped people can rapidly move by using the corridor, the suction of smoke or toxic gas in the tunnel is avoided until the trapped people move to a safe area, the survival rate of the trapped people is greatly improved by the design, and the rescue time is sufficient for the rescue people; meanwhile, the system is low in installation cost, one-time maintenance is not needed in a short time, and the maintenance cost is reduced.
When in actual use, when the tunnel body takes place the accident, smoke transducer produces the response and opens the fan and lets in fresh air to the tunnel body in, and stranded personnel can breathe fresh air at the exhaust vent, and the air pocket that accessible interval distribution formed simultaneously removes to the safe position and waits for the rescue can.
In a second aspect, an embodiment of the present application provides a method for using a fresh air supply system in a tunnel, including the following steps:
when an accident occurs to the tunnel body, remotely starting the fan by the smoke sensor;
fresh air conveyed by the fan is uniformly distributed into a plurality of air conveying pipes through the air equalizing pot and is discharged into the tunnel body;
the trapped person in the tunnel body can breathe through the fresh air discharged from the air outlet of the air delivery pipe, and meanwhile, the trapped person can ventilate in each air mass, move to the next air mass and wait for rescue until moving to a safe position. The method can effectively improve the survival rate of the trapped people, and multiple air masses can be connected into a fresh air corridor for the trapped people to breathe and move, and can wait for rescue of rescuers in situ.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the overall structure of an air supply system according to an embodiment of the present invention;
FIG. 2 is a schematic side view of an air supply system according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of the air supply system according to the embodiment of the invention.
Icon: 1-a fan; 2-gas transmission pipe; 201-vent hole; 202-gas homogenizing baffle; 3-air equalizing jar; 4-a breather pipe; 5-a tunnel body; 501-a boss; 6-path.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Referring to fig. 1 and 2, fig. 1 is a schematic view of an overall structure of an air supply system according to an embodiment of the present invention; FIG. 2 is a schematic side view of an air supply system according to an embodiment of the present invention.
First aspect, the embodiment of the application provides a fresh air supply system in tunnel, including tunnel body 5, still including the smoke transducer who connects gradually, fan 1 and gas-supply pipe 2, fan 1 installs in tunnel body 5's tunnel portal outside, gas-supply pipe 2 and smoke transducer are all installed in tunnel body 5's inside wall, gas-supply pipe 2 extends from tunnel body 5's one end port to other end port, a plurality of equidistant distribution's exhaust hole 201 has been seted up to gas-supply pipe 2 lateral wall, even gas baffle 202 is all installed in every exhaust hole 201 department, the gas that every exhaust hole 201 discharged forms the air pocket through even gas baffle 202. The tunnel body 5 is a passage for vehicles or people to pass through; the fan 1 is used for discharging fresh air outside the tunnel into the tunnel, and the air pipe 2 is used for quickly transmitting the outside air into the tunnel; because the fan 1 is positioned outside the tunnel, the air conveyed by the fan 1 cannot carry toxic air or air with smoke dust in the tunnel, and trapped people can be guaranteed to be capable of breathing fresh air in the tunnel body 5; the length of the gas pipe 2 can be preset according to the length of the tunnel body 5 when the system is assembled, so that the gas pipe 2 can penetrate through the tunnel body 5, meanwhile, the exhaust holes 201 formed in the gas pipe 2 at equal intervals are used for conveying fresh air into the tunnel body 5, trapped people at any positions in the tunnel body 5 can be guaranteed to breathe the external fresh air, the trapped people can move along the extending direction of the gas pipe 2 and can gradually move to a safer area along the direction of the exhaust holes 201 and wait for rescue, the survival rate of the trapped people is greatly improved, and a longer rescue gold period can be provided for the rescue people; the air-equalizing baffle 202 arranged at each exhaust hole 201 can enable air exhausted by the air pipe 2 to form air masses around the exhaust holes 201, and because the pressure of the air masses is greater than the pressure of smoke in the tunnel, the smoke can be blocked outside the air masses, trapped people can enter the air masses to breathe, and move along the sequentially formed air masses; according to the invention, the fan 1 is arranged outside the tunnel, fresh air is conveyed to the tunnel body 5 along the air conveying pipe 2 by using the fan 1, meanwhile, the air pressure at the position is improved by arranging the air equalizing baffle 202 at the position of the air conveying pipe 2 provided with the exhaust holes 201, so that air masses of the fresh air are formed for the trapped people to breathe, a plurality of air masses can be connected into a fresh air corridor, the trapped people can rapidly move by using the corridor, the suction of smoke or toxic gas in the tunnel is avoided, and the trapped people move to a safe area until the trapped people move to the safe area; meanwhile, the system is low in installation cost, one-time maintenance is not needed in a short time, and the maintenance cost is reduced.
In this embodiment, when the tunnel body 5 is a long tunnel, the system is installed at both ends of the tunnel body 5.
During the in-service use, when tunnel body 5 takes place the accident, smoke transducer produces the response and opens fan 1 and lets in fresh air to tunnel body 5 in, and stranded personnel can breathe fresh air in exhaust hole 201 department, and the air pocket that accessible interval distribution formed simultaneously removes to the rescue of waiting in the safe position can.
In some embodiments of the present invention, as shown in fig. 1, the number of the air pipes 2 is multiple, and the multiple air pipes 2 are sequentially installed in parallel and connected to the fan 1.
The gas supply pipe 2 in this embodiment is three, and three gas supply pipes 2 are installed in the lateral wall of tunnel body 5 side by side, guarantees the sufficiency of gas transmission through setting up many gas supply pipes 2.
In some embodiments of the present invention, as shown in fig. 1, the lengths of the plurality of air delivery pipes 2 decrease from bottom to top or from top to bottom in sequence.
Air supply pipe 2 in this embodiment is three, and three air supply pipes 2 are installed side by side at the lateral wall of tunnel body 5, and the air supply pipe 2 of fan 1 is kept away from to shorter air supply pipe 2 one end and the air supply pipe 2 of lower floor are connected, make the air current that fan 1 carried can all through air supply pipe 2 steady transmission, and every exhaust hole 201 department of guarantee all sprays gas and supplies stranded personnel to breathe.
In some embodiments of the present invention, as shown in fig. 1, the tunnel includes a gas homogenizing jar 3, the fan 1 is connected to the plurality of gas pipes 2 through the gas homogenizing jar 3, and the gas homogenizing jar 3 is installed outside the tunnel opening of the tunnel body 5.
The gas equalizing jar 3 in this embodiment is a sealed tank, and the plurality of gas transmission pipes 2 are connected with the gas equalizing jar 3, so that the gas transmitted by the fan 1 can be uniformly transmitted into each gas transmission pipe 2 through the gas equalizing jar 3.
In some embodiments of the present invention, as shown in fig. 1, the present invention further includes a ventilation pipe 4, the blower 1 is connected to the air equalizing canister 3 through the ventilation pipe 4, and the blower 1 is far away from the tunnel opening of the tunnel body 5. Install fan 1 and can prevent through keeping away from tunnel body 5 that it from being drawn into the gas that has the lid in the tunnel and carry again to tunnel body 5 in, avoid stranded personnel to absorb harmful gas and lead to taking place dangerous condition and appear.
In some embodiments of the present invention, as shown in fig. 3, there are a plurality of tunnel bodies 5, a passage 6 is opened between any two tunnel bodies 5, the gas pipe 2 at the opening of the passage 6 has a plurality of exhaust holes 201 distributed adjacently, and exhaust gas in the exhaust holes 201 forms an air curtain.
When a plurality of tunnel bodies 5 are provided, the plurality of tunnel bodies 5 are communicated with each other through the passage 6, and the wind power sprayed through the plurality of exhaust holes 201 at the opening of the passage 6 forms a wind curtain, so that the harmful gas cannot enter the through hole, and trapped people can move to another tunnel body 5 through the passage to escape.
In some embodiments of the invention, as shown in fig. 2, bosses 501 are provided at the bottoms of two opposite sides in the tunnel body 5, and the gas pipe 2 is located above the bosses 501 and at one side of the head of the human body.
In some embodiments of the invention, as shown in FIG. 1, the gas delivery conduit 2 comprises a PUR polyurethane hose.
In some embodiments of the invention, as shown in fig. 1, the fan 1 comprises a blower 1. The blower 1 is mainly composed of the following six parts: motor, air cleaner, air-blower 1 body, air chamber, base (also can the oil tank), drip oil nozzle. The blower 1 is eccentrically operated by a rotor offset in a cylinder, and sucks, compresses and discharges air by changing the volume between vanes in a rotor groove.
Referring to fig. 1 and 2, fig. 1 is a schematic view of an overall structure of an air supply system according to an embodiment of the present invention; FIG. 2 is a schematic side view of an air supply system according to an embodiment of the present invention.
In a second aspect, an embodiment of the present application provides a method for using a fresh air supply system in a tunnel, including the following steps:
when an accident occurs to the tunnel body 5, the smoke sensor remotely starts the fan 1;
fresh air conveyed by the fan 1 is uniformly distributed into a plurality of air conveying pipes 2 through the air equalizing pot 3 and is discharged into the tunnel body 5;
the trapped person in the tunnel body 5 can breathe through the fresh air discharged from the air outlet of the air delivery pipe 2, and meanwhile, the trapped person can ventilate in each air mass and move to the next air mass until moving to a safe position to wait for rescue. The method can effectively improve the survival rate of the trapped people, and multiple air masses can be connected into a fresh air corridor for the trapped people to breathe and move, and can wait for rescue of rescuers in situ.
In summary, embodiments of the present invention provide a fresh air supply system in a tunnel and a method for using the same; first aspect, the embodiment of the application provides a fresh air supply system in tunnel, including tunnel body 5, still including the smoke transducer who connects gradually, fan 1 and gas-supply pipe 2, fan 1 installs in tunnel body 5's tunnel portal outside, gas-supply pipe 2 and smoke transducer are all installed in tunnel body 5's inside wall, gas-supply pipe 2 extends from tunnel body 5's one end port to other end port, a plurality of equidistant distribution's exhaust hole 201 has been seted up to gas-supply pipe 2 lateral wall, even gas baffle 202 is all installed in every exhaust hole 201 department, the gas that every exhaust hole 201 discharged forms the air pocket through even gas baffle 202. The tunnel body 5 is a passage for vehicles or people to pass through; the fan 1 is used for discharging fresh air outside the tunnel into the tunnel, and the air pipe 2 is used for quickly transmitting the outside air into the tunnel; because the fan 1 is positioned outside the tunnel, the air conveyed by the fan 1 cannot carry toxic air or air with smoke dust in the tunnel, and trapped people can be guaranteed to be capable of breathing fresh air in the tunnel body 5; the length of the gas pipe 2 can be preset according to the length of the tunnel body 5 when the system is assembled, so that the gas pipe 2 can penetrate through the tunnel body 5, meanwhile, the exhaust holes 201 formed in the gas pipe 2 at equal intervals are used for conveying fresh air into the tunnel body 5, trapped people at any positions in the tunnel body 5 can be guaranteed to breathe the external fresh air, the trapped people can move along the extending direction of the gas pipe 2 and can gradually move to a safer area along the direction of the exhaust holes 201 and wait for rescue, the survival rate of the trapped people is greatly improved, and a longer rescue gold period can be provided for the rescue people; the air-equalizing baffle 202 arranged at each exhaust hole 201 can enable air exhausted by the air pipe 2 to form air masses around the exhaust holes 201, and because the pressure of the air masses is greater than the pressure of smoke in the tunnel, the smoke can be blocked outside the air masses, trapped people can enter the air masses to breathe, and move along the sequentially formed air masses; according to the invention, the fan 1 is arranged outside the tunnel, fresh air is conveyed to the tunnel body 5 along the air conveying pipe 2 by using the fan 1, meanwhile, the air pressure at the position is improved by arranging the air equalizing baffle 202 at the position of the air conveying pipe 2 provided with the exhaust holes 201, so that air masses of the fresh air are formed for the trapped people to breathe, a plurality of air masses can be connected into a fresh air corridor, the trapped people can rapidly move by using the corridor, the suction of smoke or toxic gas in the tunnel is avoided, and the trapped people move to a safe area until the trapped people move to the safe area; meanwhile, the system is low in installation cost, one-time maintenance is not needed in a short time, and the maintenance cost is reduced.
During the in-service use, when tunnel body 5 takes place the accident, smoke transducer produces the response and opens fan 1 and lets in fresh air to tunnel body 5 in, and stranded personnel can breathe fresh air in exhaust hole 201 department, and the air pocket that accessible interval distribution formed simultaneously removes to the rescue of waiting in the safe position can.
In a second aspect, an embodiment of the present application provides a method for using a fresh air supply system in a tunnel, including the following steps:
when an accident occurs to the tunnel body 5, the smoke sensor remotely starts the fan 1;
fresh air conveyed by the fan 1 is uniformly distributed into a plurality of air conveying pipes 2 through the air equalizing pot 3 and is discharged into the tunnel body 5;
the trapped person in the tunnel body 5 can breathe through the fresh air discharged from the air outlet of the air delivery pipe 2, and meanwhile, the trapped person can ventilate in each air mass and move to the next air mass until moving to a safe position to wait for rescue. The method can effectively improve the survival rate of the trapped people, and multiple air masses can be connected into a fresh air corridor for the trapped people to breathe and move, and can wait for rescue of rescuers in situ.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a fresh air supply system in tunnel, includes the tunnel body, its characterized in that still includes smoke transducer, fan and the gas-supply pipe that connects gradually, the fan install in the tunnel mouth outside of tunnel body, the gas-supply pipe with smoke transducer all install in the inside wall of tunnel body, the gas-supply pipe certainly the one end port to the other end port of tunnel body extend, a plurality of equidistant exhaust holes of distributing, every are seted up to the gas-supply pipe lateral wall the even gas baffle of exhaust hole department all installs, every the gas that the exhaust hole discharged passes through even gas baffle forms the air pocket.
2. The system of claim 1, wherein the number of the air delivery pipes is multiple, and the air delivery pipes are sequentially arranged in parallel and connected with the fan.
3. The system of claim 2, wherein the lengths of the air delivery pipes decrease from bottom to top or from top to bottom in sequence.
4. The system according to claim 2, further comprising an air equalizing canister, wherein the blower is connected to the plurality of air pipes through the air equalizing canister, and the air equalizing canister is installed outside the tunnel opening of the tunnel body.
5. The fresh air supply system in the tunnel according to claim 4, further comprising a ventilation pipe, wherein the blower is connected to the air equalizing canister through the ventilation pipe, and the blower is far away from the tunnel opening of the tunnel body.
6. The fresh air supply system in the tunnel according to claim 1, wherein the number of the tunnel bodies is plural, a passage is formed between any two of the tunnel bodies, the air delivery pipe is provided with a plurality of exhaust holes which are distributed adjacently at the opening of the passage, and the exhaust holes exhaust air to form an air curtain.
7. The system for supplying fresh air in the tunnel according to claim 1, wherein bosses are arranged at the bottoms of two opposite sides in the tunnel body, and the air delivery pipe is positioned above the bosses and on one side of the head of the human body.
8. The fresh air supply system in a tunnel according to claim 1, wherein the air delivery pipe comprises a PUR polyurethane hose.
9. An in-tunnel fresh air supply system according to claim 1, wherein said fan comprises a blower.
10. A method of using a fresh air supply system in a tunnel, comprising the steps of:
when an accident occurs to the tunnel body, remotely starting the fan by the smoke sensor;
fresh air conveyed by the fan is uniformly distributed into a plurality of air conveying pipes through the air equalizing pot and is discharged into the tunnel body;
the trapped person in the tunnel body can breathe through the fresh air discharged from the air outlet of the air delivery pipe, and meanwhile, the trapped person can ventilate in each air mass, move to the next air mass and wait for rescue until moving to a safe position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110807606.6A CN113482688A (en) | 2021-07-16 | 2021-07-16 | Fresh air supply system in tunnel and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110807606.6A CN113482688A (en) | 2021-07-16 | 2021-07-16 | Fresh air supply system in tunnel and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113482688A true CN113482688A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110807606.6A Withdrawn CN113482688A (en) | 2021-07-16 | 2021-07-16 | Fresh air supply system in tunnel and use method thereof |
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| CN (1) | CN113482688A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO347318B1 (en) * | 2022-06-28 | 2023-09-18 | Erik Aaby | System and method for pressure cleaning of tunnels |
-
2021
- 2021-07-16 CN CN202110807606.6A patent/CN113482688A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO347318B1 (en) * | 2022-06-28 | 2023-09-18 | Erik Aaby | System and method for pressure cleaning of tunnels |
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Application publication date: 20211008 |
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| WW01 | Invention patent application withdrawn after publication |