JP2021110226A - Ventilation and smoke exhaustion device and method on fire for tunnel with long and huge section in underground railway penetrating rive or sea - Google Patents

Abstract

To provide a ventilation and smoke exhaustion device and a method on fire for a tunnel with long and huge sections in an underground railway penetrating a river or the sea, relating to an urban railroad traffic field.SOLUTION: A tunnel in an underground railway section includes a traveling entrance, a smoke exhaustion section 2 in a vertical direction, a smoke exhaustion section 1 in a lateral direction, and a traveling exit successively installed. An inlet ventilation unit is disposed in the traveling entrance, and an outlet ventilation unit is disposed in the traveling exit. A smoke exhaustion ventilation passage 11 in communication with the outlet ventilation unit is provided in a lateral smoke passage, and a ventilation exhaustion port 111 is provided between the smoke exhaustion ventilation passage and a traveling railway in the smoke exhaustion section in a lateral direction. A length of the smoke exhaustion section in a vertical direction is equal or shorter than a distance between a preceding vehicle and a following vehicle when the following vehicle enters the tunnel in the underground railway section.SELECTED DRAWING: Figure 1

Description

The present invention relates to the field of urban orbital transportation, and particularly to a fire ventilation smoke exhaust device and method for a tunnel having a long and large section in a subway running through a river or the sea.

In recent years, Japan's urban orbital transportation is in the stage of high-speed development, and with the continuous progress and completeness of the urban underground transportation network, more and more tunnels running through rivers or seas have been constructed and operated, for example. There are tunnels that run through the subway river of Nanjing Subway Line 10, tunnels that run through the river of Wuhan Line 7, the Yujiang Tunnel of the Changjiang Five Bridges, and the submarine tunnel of Qingdao Line 1. It can effectively solve the communication problem between the two banks of the river or the two banks of the sea, but it poses an even greater challenge to the safe operation of the tunnel. Of these, a tunnel fire, which is one of the important challenges faced by a tunnel that runs through a river or sea, is a low-probability incident, but once a fire breaks out, the peculiarity of the tunnel position and the localization of the tunnel space Due to their nature, their closed environment makes it extremely difficult to evacuate, rescue, smoke and extinguish a tunnel in the event of a fire, and the potential danger of a subway fire is great for human life and property. Gives a loss. To understand the control effect of tunnel fires on flue gas spread with different ventilation and flue gas schemes, shield tunnels through the river either ventilate vertically or blow horizontally or open different flue vents. It is extremely important to study the fire situation under such conditions in depth.

Compared to the conventional single-hole subway section tunnel, the fire protection and flue gas organization mainly takes the vertical ventilation smoke exhaust mode, but specifically, one section tunnel smoke exhaust blower located near the stations at both ends of the tunnel. Since each of the two tunnels is equipped with one smoke exhaust port, there are a total of four section tunnel blowers and four smoke exhaust ports at both ends of the two tunnels. Trains should travel to the station ahead as much as possible in the event of a fire during operation, evacuating passengers at the station ahead, eliminating flue gas and extinguishing the fire. When the ignited train is stopped at the station, smoke is exhausted by the station tunnel ventilation system, and the section tunnel blowers at both ends of the station assist the smoke exhaust, and the home fire mode of the large system (public area ventilation smoke exhaust air conditioning system). When the ignition train stops in the section tunnel, smoke should be exhausted in the prescribed tunnel fire mode and a new wind should be sent to guide the passengers to evacuate, and the smoke elimination direction is always for many passengers. It is the opposite of the evacuation direction. If a fire breaks out at the tip of the train, the ignition tunnel smoke exhaust blower in the direction of travel of the train should be turned on to exhaust smoke, and the ignition tunnel blower in the direction of the end of the train should be turned on to blow air. A vertical wind is formed from the direction of the end of the train to the tip of the train, ensuring that the flue gas can flow toward the tip of the train, and personnel are evacuated toward the end of the train. If a fire breaks out at the end of the train, the ignition tunnel blower in the forward direction of the train (ie, the direction of the train head) should be turned on to replenish the wind, and the ignition tunnel blower in the direction of the end of the train should be turned on to exhaust smoke. , Form a longitudinal wind from the direction of the tip of the train to the end of the train, ensuring that the flue gas can flow towards the end of the train.

The above vertical ventilation / smoke exhaust mode can be applied to a normal section tunnel, but cannot be applied to a long and large section in a subway running through a river or the sea. The main reasons are as follows: The section of the subway that runs through the river or sea is long and the large tunnel is long, and during the period of subway operation, two rows of trains may coexist in the section tunnel at the same time, in the vertical direction. Once the ventilation smoke is removed, if a fire breaks out at the end of the preceding vehicle and it is stopped in the tunnel, blow it with a section tunnel blower in the direction of the tip of the train, and in the section tunnel in the direction of the end of the train. If the form of exhausting smoke is taken, the first train in the back and many trains in the back are surrounded by smoke, which is disadvantageous for the safety of personnel.

One conventional solution is to install an intermediate ventilation shaft in the middle of the tunnel at an appropriate position, and to install section tunnel blowers at both ends of the ventilation shaft, but above the tunnel through the river or sea is common. If the intermediate ventilation shaft is artificially installed on the river surface or the sea surface, the cost will rise extremely.

It is an object of the present invention to provide a fire ventilation smoke exhaust device and a method for a tunnel having a long section and a large section in a subway running through a river or the sea, which overcomes the problem or at least partially solves the problem. do.

The first embodiment; an embodiment of the present invention provides a fire ventilation smoke exhaust device for a tunnel having a long and large section in a subway penetrating a river or the sea; the subway section tunnel has a traveling entrance provided in sequence and a vertical direction. A smoke exhaust section, a lateral smoke exhaust section, and a travel outlet are included, the travel inlet is provided with an inlet ventilation unit, and the travel outlet is provided with an outlet ventilation unit;

A smoke exhaust air passage communicating with the outlet ventilation unit is provided in the lateral smoke exhaust section, and a plurality of smoke exhaust air passages are provided between the smoke exhaust air passage and the traveling path of the lateral smoke exhaust section. A blower smoke exhaust port is provided, and the length of the vertical smoke exhaust section is less than or equal to the distance between the preceding vehicle and the following vehicle when the following vehicle enters the subway section tunnel.

Among them, the inlet ventilation unit includes a vertically connected air vent, an inlet damper, and an inlet ventilation shaft, and the air vent of the vertical section is provided in the vertical smoke exhaust section. An inlet smoke exhaust air passage is provided between the inlet damper and the inlet ventilation shaft, and an inlet silencer, an inlet tunnel blower, and an inlet smoke exhaust air passage which are sequentially connected to the inlet smoke exhaust air passage are provided. Includes dampers;

The outlet ventilation unit includes a vent of a lateral section, an outlet damper, and an outlet ventilation shaft which are sequentially connected, and the vent of the lateral section is provided in the smoke exhaust air vent and the outlet. An outlet smoke exhaust air passage is provided between the damper and the outlet ventilation shaft, and the outlet smoke exhaust air passage is sequentially connected to an outlet silencer, an outlet tunnel blower, and an outlet smoke exhaust damper. including.

Among them, an inlet ventilation damper is further provided between the inlet damper and the inlet ventilation shaft in parallel with the inlet smoke exhaust air passage, and the outlet is provided between the outlet damper and the outlet ventilation shaft. An outlet ventilation damper is further installed in parallel with the smoke exhaust air passage.

Among them, the subway section tunnel includes the first tunnel going up the subway and the second tunnel going down the subway;

The inlet silencer of the first tunnel and the inlet damper of the first tunnel are connected, and the outlet silencer of the first tunnel and the outlet damper of the first tunnel are connected;

The inlet silencer of the second tunnel and the inlet damper of the second tunnel are connected, and the outlet silencer of the second tunnel and the outlet damper of the second tunnel are connected;

A damper for communicating the first ascending and descending is provided between the outlet silencer of the first tunnel and the inlet silencer of the second tunnel, and the outlet silencer of the second tunnel and the inlet of the first tunnel are provided. A damper is provided between the silencer and the second ascending and descending.

The second embodiment; an embodiment of the present invention provides a fire ventilation smoke exhaust device for a tunnel having a long and large section in a subway penetrating a river or sea, and in a subway penetrating a river or sea by the device according to any one of the above. Includes fire ventilation flue gas methods for long and large tunnels; includes a first flue gas mode, said first flue gas mode includes:

Set the inlet ventilation unit to the air supply state, set the outlet ventilation unit to the smoke exhaust state, and turn on the blower smoke exhaust port.

Among them, the inlet ventilation unit is set to the air supply state, the outlet ventilation unit is set to the smoke exhaust state, and before the blower / smoke exhaust port is turned on, the following is further included:

When the preceding vehicle ignites, it notifies that the following vehicle will stop immediately;

When the tip of the following vehicle ignites, notify that the preceding vehicle will continue ahead.

In, setting the inlet ventilation unit to the air supply state includes:

Turn on the inlet ventilation shaft to blow air, turn on the inlet smoke exhaust damper, turn on the inlet tunnel blower to blow air, turn on the inlet damper, turn off the inlet ventilation damper;

Setting the outlet ventilation unit to the flue gas state includes:

Turn on the outlet ventilation shaft to exhaust smoke, turn on the outlet smoke exhaust damper, turn on the outlet tunnel blower to exhaust smoke, turn on the outlet damper, and turn off the outlet ventilation damper.

Among them, the subway section tunnel includes a first tunnel going up the subway and a second tunnel going down the subway, the method further includes a second smoke exhaust mode, and the second smoke exhaust mode includes:

The inlet ventilation unit of the first tunnel is set to the air supply state, the outlet ventilation unit of the second tunnel is set to the smoke exhaust state, and the damper that communicates the second ascending and descending is turned on;

The inlet ventilation unit of the second tunnel is set to the air supply state, the outlet ventilation unit of the first tunnel is set to the smoke exhaust state, and the damper that communicates the first ascending and descending is turned on;

Turn on the air outlet.

Among them, a third smoke exhaust mode is included, the third smoke exhaust mode includes:

When the end of the following vehicle ignites, it notifies that the preceding vehicle will continue ahead;

The inlet ventilation unit is set to the smoke exhaust state, the outlet ventilation unit is set to the air supply state, and the blower smoke exhaust port is turned on.

Among them, the subway section tunnel includes a first tunnel going up the subway and a second tunnel going down the subway, the method further includes a fourth smoke exhaust mode, and the fourth smoke exhaust mode includes:

When the end of the following vehicle ignites, it notifies that the preceding vehicle will continue ahead;

The inlet ventilation unit of the first tunnel is set to the smoke exhaust state, the outlet ventilation unit of the second tunnel is set to the air supply state, and the damper that communicates the second ascending and descending is turned on;

The inlet ventilation unit of the second tunnel is set to the smoke exhaust state, the outlet ventilation unit of the first tunnel is set to the air supply state, and the damper that communicates the first up and down is turned on;

Turn on the air outlet.

The fire ventilation smoke exhaust device and method for a long and large tunnel in a subway penetrating a river or sea provided by an embodiment of the present invention is a subway section tunnel penetrating a river or sea with a vertical smoke exhaust section and a horizontal smoke exhaust. Divide into sections, and provide a smoke exhaust air duct to separate it from the travel path in the lateral smoke exhaust section. For example, install a smoke exhaust air duct along the top of the tunnel to separate the smoke exhaust air duct and the travel path. Ventilation is communicated through the air outlet and smoke exhaust port. When a fire breaks out in the subway in the lateral smoke exhaust section, the flue gas enters the smoke exhaust air duct through the air exhaust outlet and can be discharged from the tunnel through the smoke exhaust air duct, and from the track. Does not affect the escape of personnel; process costs can be saved because there is no need to provide a flue gas vent in the vertical flue section. The apparatus provided by the embodiments of the present invention is not applicable only to conventional vertical smoke exhaust, when a two-row subway is in a long and large tunnel in a subway that runs through a river or sea, the end of a preceding vehicle or a trailing vehicle. To effectively solve the problem that the tip of the car ignites and it is not possible to balance smoke exhaust and the escape of the two train personnel, and to ensure that the lateral smoke exhaust section works effectively. , When the following vehicle enters the vertical smoke exhaust section of the subway section tunnel, the preceding vehicle should be in the horizontal smoke exhaust section.

In order to more clearly explain the examples of the present invention or the technical solutions in the prior art, the drawings necessary for the description of the examples or the prior art are briefly introduced below, and the drawings described below are clearly described. It is some embodiment of the present invention, and those skilled in the art can obtain other drawings based on these drawings on the premise that no creative effort is required.

FIG. 1 is a schematic structural diagram of a fire ventilation smoke exhaust device for a long and large tunnel in a subway running through a river or sea provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a fire ventilation smoke evacuator for a long and large tunnel in a subway running through a river or sea provided by another embodiment of the present invention;

FIG. 3 shows a device that employs the first smoke exhaust mode of the fire ventilation smoke exhaust method of a tunnel having a long and large section in a subway penetrating a river or the sea provided by another embodiment of the present invention when a preceding vehicle ignites. It is a schematic diagram of the state of

FIG. 4 shows a device that employs the second smoke exhaust mode of the fire ventilation smoke exhaust method of a tunnel having a long and large section in a subway penetrating a river or the sea provided by another embodiment of the present invention when a preceding vehicle ignites. It is a schematic diagram of the state of

FIG. 5 adopts the first smoke exhaust mode of the fire ventilation smoke exhaust method of a tunnel having a long and large section in a subway penetrating a river or the sea provided by another embodiment of the present invention when the tip of a successor vehicle ignites. It is a schematic diagram of the state of the device to be used;

FIG. 6 adopts the second smoke exhaust mode of the fire ventilation smoke exhaust method of a tunnel having a long and large section in a subway penetrating a river or the sea provided by another embodiment of the present invention when the tip of a successor vehicle ignites. It is a schematic diagram of the state of the device to be used;

FIG. 7 adopts the third smoke exhaust mode of the fire ventilation smoke exhaust method of a tunnel having a long and large section in a subway penetrating a river or the sea provided by another embodiment of the present invention when the end of the successor vehicle ignites. It is a schematic diagram of the state of the device to be used;

FIG. 8 adopts the fourth smoke exhaust mode of the fire ventilation smoke exhaust method of a tunnel having a long and large section in a subway penetrating a river or the sea provided by another embodiment of the present invention when the end of the successor vehicle ignites. It is a schematic diagram of the state of the device to be used;

Specific embodiments of the present invention will be described in more detail below with reference to the drawings and examples. The following examples are for explaining the present invention and do not limit the scope of the present invention.

In the description of the present invention, "center", "vertical direction", "horizontal direction", "top", "bottom", "front", "rear", "left", "right", "vertical", The orientations and positional relationships indicated by "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations and positional relationships shown in the drawings, and are easy to explain in the present invention. Explicitly stated that the device or element must have a specific orientation, must be configured in a specific orientation, or must be operated, for the sake of brevity only. Or it is not implied and should not be understood as limiting the invention. Also, terms such as "first," "second," and "third" are for illustration purposes only and should not be understood to indicate priorities explicitly or implicitly.

In the description of the present invention, the terms "mounting", "communication", and "connection" should be interpreted in a broad sense unless otherwise specified or limited, and are, for example, fixedly connected. It may be detachably connected, it may be connected integrally; it may be mechanically connected, it may be electrically connected; it may be directly connected. It may be connected indirectly via an intermediate medium, or it may be a communication inside the two elements. Those skilled in the art can understand the specific meanings of the terms in the present invention according to the specific circumstances.

Further, in the description of the present invention, unless otherwise specified, the meanings of "plurality", "plurality", and "plurality" are two or more.

As shown in FIGS. 1 and 2, an embodiment of the present invention provides a fire ventilation smoke exhaust device for a tunnel having a long and large section in a subway penetrating a river or the sea, and the subway section tunnels are sequentially installed. Includes an inlet, a vertical smoke exhaust section 2, a horizontal smoke exhaust section 1 and a running exit. An inlet ventilation unit is provided at the traveling inlet, an outlet ventilation unit is provided at the traveling outlet, and a smoke exhaust air vent 11 communicating with the outlet ventilation unit is provided in the lateral smoke exhaust section 1. A blower smoke vent 111 is provided between the airway 11 and the runway of the lateral smoke exhaust section 1; the length of the vertical smoke exhaust section 2 is preceded by the following vehicle entering the subway section tunnel. It is less than or equal to the distance between the vehicle and the following vehicle.

The fire ventilation smoke exhaust device for a long and large tunnel in a subway penetrating a river or sea provided by an embodiment of the present invention is a vertical smoke exhaust section 2 and a horizontal smoke exhaust section in a subway section tunnel penetrating a river or sea. A smoke exhaust air duct 11 is provided in the lateral smoke exhaust section 1 to separate it from the traveling path. For example, a smoke exhaust air duct 11 is installed along the top of the tunnel, and the smoke exhaust air duct 11 and Ventilation communication with the traveling path is performed through the air blow / smoke exhaust port 111. When a fire breaks out in the subway of the lateral smoke exhaust section 1, the flue gas enters the smoke exhaust air duct 11 through the air exhaust outlet 111 and is discharged from the tunnel through the smoke exhaust air duct 11. It does not affect the escape of personnel from the driving passage; it is not necessary to provide the flue gas blower air passage 11 in the vertical smoke exhaust section 2, and the process cost can be saved. The apparatus provided by the embodiments of the present invention is not applicable only to conventional vertical smoke exhaust, when a two-row subway is in a long and large tunnel in a subway that runs through a river or sea, the end of a preceding vehicle or a trailing vehicle. To effectively solve the problem that the tip of the car ignites and it is not possible to achieve both smoke exhaust and the escape of the personnel of the two trains, and to ensure that the lateral smoke exhaust section 1 works effectively. In addition, when the following vehicle enters the vertical smoke exhaust section 2 of the subway section tunnel, the preceding vehicle should be in the horizontal smoke exhaust section 1.

In one specific embodiment, the inlet ventilation unit includes a longitudinal segment vent 41, an inlet damper 42 and an inlet ventilation shaft 47 that are sequentially connected, with the longitudinal segment vent 41 being the longitudinal smoke exhaust section 2. Inlet smoke exhaust air duct is installed between the inlet damper 42 and the inlet ventilation shaft 47, and the inlet smoke exhaust air duct is connected in sequence to the inlet silencer 43, the inlet tunnel blower 44, and the inlet smoke exhaust air duct. Includes damper 45. The outlet ventilation unit includes a lateral segment air vent 31, an outlet damper 32 and an outlet ventilation shaft 37 which are sequentially connected, and the lateral segment air vent 31 is provided in the flue gas vent airway 11, and the outlet damper 32 and the outlet are provided. An outlet smoke exhaust air passage is provided between the ventilation shaft 37, and the outlet smoke exhaust air passage includes an outlet silencer 33, an outlet tunnel blower 34, and an outlet smoke exhaust damper 35 which are sequentially connected to each other.

The inlet ventilation shaft 47 and the outlet ventilation shaft 37 are provided at both ends of the subway section tunnel to ventilate the outside. If a fire breaks out at the tip of the preceding vehicle (regardless of the tip or end of the train) or the tip of the following vehicle that has entered the tunnel, the ventilation state in the tunnel will be the inlet ventilation shaft 47, the inlet smoke exhaust damper 45, and the inlet tunnel. It enters the vertical smoke exhaust section 2 through the blower 44, the inlet silencer 43, the inlet damper 42, and the air vent 41 of the vertical segment in order, flows to the horizontal smoke exhaust section 1 along the vertical smoke exhaust section 2, and smokes. The road gas is taken to the smoke exhaust air passage 11 through the air exhaust air outlet 111, and then the air outlet 31, the outlet damper 32, the outlet silencer 33, the outlet tunnel blower 34, and the outlet smoke exhaust damper 35 in the lateral section. And the outlet ventilation shaft 37 is passed through in order, and the smoke is discharged from the tunnel.

In one specific embodiment, an inlet ventilation damper 46 is further provided between the inlet damper 42 and the inlet ventilation shaft 47 in parallel with the inlet smoke exhaust air passage, and between the outlet damper 32 and the outlet ventilation shaft 37. Further, an outlet ventilation damper 36 is provided in parallel with the outlet smoke exhaust air passage.

In one specific example, as shown in FIG. 2, the subway section tunnel includes the first tunnel 7 going up the subway and the second tunnel 8 going down the subway, and the inlet silencer 43 and the first tunnel 7 of the first tunnel 7. The inlet damper 42 of the first tunnel 7 is connected, the outlet silencer 33 of the first tunnel 7 and the outlet damper 32 of the first tunnel 7 are connected, and the inlet silencer 43 of the second tunnel 8 and the inlet damper 42 of the second tunnel 8 are connected. Is connected, and the outlet silencer 33 of the second tunnel 8 and the outlet damper 32 of the second tunnel 8 are connected. A damper 5 for communicating the first ascent and descent is provided between the outlet silencer 33 of the first tunnel 7 and the inlet silencer 43 of the second tunnel 8, and the outlet silencer 33 and the first of the second tunnel 8 are provided. A damper 6 for communicating the second ascending and descending is provided between the inlet silencer 43 of the tunnel 7.

The efficiency of tunnel ventilation and flue gas can be effectively improved by the damper 5 that communicates the first ascending and descending and the damper 6 that communicates the second ascending and descending.

An embodiment of the present invention further provides a fire ventilation smoke exhaust method for a tunnel having a long section and a large section in a subway penetrating a river or the sea based on the device, and includes a first smoke exhaust mode as shown in FIGS. 3 and 5. .. In the schematic diagram of the device state shown in FIGS. 3 to 8, v represents a state in which the device is on or in operation, and x represents a state in which the device is in the off state. The first smoke exhaust mode includes:

Set the inlet ventilation unit to the air supply state, set the outlet ventilation unit to the smoke exhaust state, and turn on the blower smoke exhaust port 111.

The first smoke exhaust mode can be adopted both when the preceding vehicle ignites (regardless of the tip or end of the train) and when the tip of the following vehicle ignites. At this time, the airflow enters the vertical smoke exhaust section 2 from the inlet ventilation unit, guides the flue gas generated by ignition from the flue gas exhaust port 111 to the flue gas exhaust air passage 11, and passes through the outlet ventilation unit from the tunnel. Exhaust and complete smoke exhaust. The method provided by the embodiments of the present invention is to emit smoke when the end of a preceding vehicle or the tip of a following vehicle ignites when two rows of subways are in a long and large tunnel in a subway that runs through a river or sea at the same time. It is possible to effectively solve the problem of achieving both the escape of personnel of the two trains.

In one specific embodiment, the step sets the inlet ventilation unit to the air supply state, sets the outlet ventilation unit to the smoke exhaust state, and before turning on the blower exhaust port 111, the following include:

When the preceding vehicle ignites, it notifies that the following vehicle will stop immediately;

When the tip of the following vehicle ignites, notify that the preceding vehicle will continue ahead.

FIG. 3 shows a long and large tunnel fire in a subway that runs through a river or sea provided by another embodiment of the present invention when the preceding vehicle ignites (whether at the tip or end of the preceding vehicle). It is a state schematic of the apparatus which adopts the 1st smoke exhaust mode of a ventilation smoke exhaust method. FIG. 5 adopts the first smoke exhaust mode of the fire ventilation smoke exhaust method of a long and large tunnel in a subway penetrating a river or sea provided by another embodiment of the present invention when the tip of a successor vehicle ignites. A schematic diagram of the state of the device is shown.

In one specific embodiment, the inlet ventilation unit is set to the air supply state and includes:

The inlet ventilation shaft 47 is turned on to blow air, the inlet smoke exhaust damper 45 is turned on, the inlet tunnel blower 44 is turned on to blow air, the inlet damper 42 is turned on, and the inlet ventilation damper 46 is turned off;

Setting the outlet ventilation unit to the flue gas state includes:

Turn on the outlet ventilation shaft 37 to exhaust smoke, turn on the outlet smoke exhaust damper 35, turn on the outlet tunnel blower 34 to exhaust smoke, turn on the outlet damper 32, and turn off the outlet ventilation damper 36. thing.

In one specific embodiment, the subway section tunnel includes a first tunnel 7 going up the subway and a second tunnel 8 going down the subway, further including a second smoke exhaust mode as shown in FIGS. 4 and 6. The second smoke exhaust mode includes:

The inlet ventilation unit of the first tunnel 7 is set to the air supply state, the outlet ventilation unit of the second tunnel 8 is set to the smoke exhaust state, and the damper 6 that communicates the second ascending and descending is turned on;

The inlet ventilation unit of the second tunnel 8 is set to the air supply state, the outlet ventilation unit of the first tunnel 7 is set to the smoke exhaust state, and the damper 5 that communicates the first ascending and descending is turned on;

Turn on the blower / smoke exhaust port 111.

The second smoke exhaust mode can be adopted regardless of whether the preceding vehicle (regardless of the tip or end of the train) ignites or the tip of the following vehicle ignites; the second smoke exhaust mode is the first. The damper 5 that communicates the first ascent and the descent and the damper 6 that communicates the second ascent and the descent are turned on to have higher ventilation and smoke exhaust efficiency.

FIG. 4 shows a long and large tunnel fire in a subway that runs through a river or sea provided by another embodiment of the present invention when the preceding vehicle ignites (whether at the tip or end of the preceding vehicle). It is a state schematic of the apparatus which adopts the 2nd smoke exhaust mode of a ventilation smoke exhaust method. FIG. 6 adopts the second smoke exhaust mode of the fire ventilation smoke exhaust method of a long and large tunnel in a subway penetrating a river or sea provided by another embodiment of the present invention when the tip of a successor vehicle ignites. A schematic diagram of the state of the device is shown.

In one specific embodiment, the method further comprises a third smoke exhaust mode as shown in FIG. 7, the third smoke exhaust mode includes:

When the end of the following vehicle ignites, it notifies that the preceding vehicle will continue ahead;

Set the inlet ventilation unit to the smoke exhaust state, set the outlet ventilation unit to the air supply state, and turn on the blower smoke exhaust port 111.

When the end of the following vehicle ignites, the third smoke exhaust mode can be adopted.

FIG. 7 adopts the third smoke exhaust mode of the fire ventilation smoke exhaust method of a long and large tunnel in a subway penetrating a river or sea provided by another embodiment of the present invention when the end of a successor vehicle ignites. A schematic diagram of the state of the device is shown.

In one specific embodiment, the subway section tunnel includes a first tunnel 7 going up the subway and a second tunnel 8 going down the subway, further including a fourth smoke exhaust mode as shown in FIG. Smoke exhaust modes include:

When the end of the following vehicle ignites, it notifies that the preceding vehicle will continue ahead;

The inlet ventilation unit of the first tunnel 7 is set to the smoke exhaust state, the outlet ventilation unit of the second tunnel 8 is set to the air supply state, and the damper 6 that communicates the second ascending and descending is turned on;

The inlet ventilation unit of the second tunnel 8 is set to the smoke exhaust state, the outlet ventilation unit of the first tunnel 7 is set to the air supply state, and the damper 5 that communicates the first up and down is turned on;

Turn on the blower / smoke exhaust port 111.

When the end of the following vehicle ignites, a fourth smoke exhaust mode can be adopted; the fourth smoke exhaust mode is a damper 5 that communicates the first ascent and descent and a damper 6 that communicates the second ascent and descent. Turn on and have higher ventilation and smoke exhaust efficiency.

FIG. 8 adopts the fourth smoke exhaust mode of the fire ventilation smoke exhaust method of a long and large tunnel in a subway penetrating a river or sea provided by another embodiment of the present invention when the end of a successor vehicle ignites. It is a schematic state diagram of the apparatus.

As is clear from the above examples, the fire ventilation smoke exhaust device and method for a tunnel having a long and large section in a subway tunnel penetrating a river or sea provided by the present invention vertically exhausts a subway section tunnel penetrating a river or sea. It is divided into a smoke section 2 and a lateral smoke exhaust section 1, and a smoke exhaust air passage 11 is provided in the lateral smoke exhaust section 1 to separate it from a traveling path. For example, a smoke exhaust air passage 11 is provided along the top of a tunnel. , The flue gas blower air passage 11 and the traveling path are ventilated and communicated with each other through the flue gas exhaust port 111. When a fire breaks out in the subway in the lateral smoke exhaust section 1, the flue gas enters the smoke exhaust air duct 11 through the air exhaust outlet 111 and is discharged from the tunnel through the smoke exhaust air duct 11. It does not affect the escape of personnel from the driving passage; it is not necessary to provide the flue gas blower air passage 11 in the vertical smoke exhaust section 2, and the process cost can be saved. The apparatus provided by the embodiments of the present invention is not applicable only to conventional vertical smoke exhaust, when a two-row subway is in a long and large tunnel in a subway that runs through a river or sea, the end of a preceding vehicle or a trailing vehicle. To effectively solve the problem that the tip of the car ignites and it is not possible to achieve both smoke exhaust and the escape of the personnel of the two trains, and to ensure that the lateral smoke exhaust section 1 works effectively. In addition, when the following vehicle enters the vertical smoke exhaust section 2 of the subway section tunnel, the preceding vehicle should be in the horizontal smoke exhaust section 1.

The above description is merely a preferred embodiment of the present invention, does not limit the present invention, and any modifications, equal substitutions, improvements, etc. are within the scope of the present invention without departing from the gist of the present invention. It is included.

1 Lateral smoke exhaust section 11 Smoke exhaust air outlet 111 Blower Smoke exhaust port 2 Vertical smoke exhaust section 31 Horizontal section air outlet 32 Outlet damper 33 Outlet silencer 34 Outlet tunnel blower 35 Outlet smoke exhaust damper 36 Outlet ventilation damper 37 Outlet ventilation shaft 41 Vertical section air vent 42 Inlet damper 43 Inlet silencer 44 Inlet tunnel blower 45 Inlet smoke exhaust damper 46 Inlet ventilation damper 47 Inlet ventilation shaft 5 Damper that connects the first up and down 6 Second up and down Damper 7 1st tunnel 8 2nd tunnel

Claims (10)

The subway section tunnel includes a traveling entrance, a vertical smoke exhaust section, a horizontal smoke exhaust section, and a traveling exit which are sequentially provided, and an inlet ventilation unit is provided at the traveling entrance and the traveling is performed. The outlet is equipped with an outlet ventilation unit;
A smoke exhaust air passage communicating with the outlet ventilation unit is provided in the lateral smoke exhaust section, and a plurality of smoke exhaust air passages are provided between the smoke exhaust air passage and the traveling path of the lateral smoke exhaust section. A blower smoke exhaust port is provided, and the length of the vertical smoke exhaust section is characterized by being less than or equal to the distance between the preceding vehicle and the following vehicle when the following vehicle enters the subway section tunnel. A fire ventilation smoke evacuator for a long and large tunnel in a subway that runs through a river or sea. The inlet ventilation unit includes a vertical section vent, an inlet damper, and an inlet ventilation shaft that are sequentially connected, and the vertical section vent is provided in the vertical smoke exhaust section and the inlet. An inlet smoke exhaust air passage is provided between the damper and the inlet ventilation shaft, and an inlet silencer, an inlet tunnel blower, and an inlet smoke exhaust damper which are sequentially connected to the inlet smoke exhaust air passage are provided. Included,
The outlet ventilation unit includes a vent of a lateral section, an outlet damper, and an outlet ventilation shaft which are sequentially connected, and the vent of the lateral section is provided in the smoke exhaust air vent and the outlet. An outlet smoke exhaust air passage is provided between the damper and the outlet ventilation shaft, and the outlet smoke exhaust air passage is sequentially connected to an outlet silencer, an outlet tunnel blower, and an outlet smoke exhaust damper. The fire ventilation smoke exhaust device for a tunnel having a long and large section in a subway penetrating a river or the sea according to claim 1. An inlet ventilation damper is further provided between the inlet damper and the inlet ventilation shaft in parallel with the inlet smoke exhaust air passage, and the outlet smoke exhaust air is provided between the outlet damper and the outlet ventilation shaft. The fire ventilation smoke exhaust device for a tunnel having a long and large section in a subway penetrating a river or the sea according to claim 2, wherein an outlet ventilation damper is further provided in parallel with the road. The subway section tunnel includes the first tunnel going up the subway and the second tunnel going down the subway;
The inlet silencer of the first tunnel and the inlet damper of the first tunnel are connected, and the outlet silencer of the first tunnel and the outlet damper of the first tunnel are connected;
The inlet silencer of the second tunnel and the inlet damper of the second tunnel are connected, and the outlet silencer of the second tunnel and the outlet damper of the second tunnel are connected;
A damper for communicating the first ascent and descent is provided between the outlet silencer of the first tunnel and the inlet silencer of the second tunnel, and the outlet silencer of the second tunnel and the inlet of the first tunnel are provided. The fire ventilation smoke exhaust device for a tunnel having a long and large section in a subway penetrating a river or the sea according to claim 2, wherein a damper for communicating a second ascending and descending is provided between the silencer and the silencer. The first smoke exhaust mode includes a first smoke exhaust mode, the first smoke exhaust mode includes a first smoke exhaust mode, and the first smoke exhaust mode is:
According to the device according to any one of claims 1 to 4, wherein the inlet ventilation unit is set to the air supply state, the outlet ventilation unit is set to the smoke exhaust state, and the blower / smoke exhaust port is turned on. A fire ventilation smoke evacuator for a long and large tunnel in a subway that runs through a river or sea. Before setting the inlet ventilation unit to the air supply state, setting the outlet ventilation unit to the smoke exhaust state, and turning on the blower smoke exhaust port, the following is further included:
When the preceding vehicle ignites, it notifies that the following vehicle will stop immediately;
The fire ventilation smoke exhaust of a tunnel having a long and large section in a subway penetrating a river or the sea according to claim 5, wherein when the tip of the following vehicle ignites, the preceding vehicle notifies that the preceding vehicle will continue ahead. Method. Setting the inlet ventilation unit to the air supply state includes:
Turn on the inlet ventilation shaft to blow air, turn on the inlet smoke exhaust damper, turn on the inlet tunnel blower to blow air, turn on the inlet damper, turn off the inlet ventilation damper;
Setting the outlet ventilation unit to the flue gas state includes:
It is characterized by turning on the outlet ventilation shaft to exhaust smoke, turning on the outlet smoke exhaust damper, turning on the outlet tunnel blower to exhaust smoke, turning on the outlet damper, and turning off the outlet ventilation damper. The fire ventilation / smoke exhaust method for a long and large tunnel in a subway penetrating a river or sea according to claim 5. The subway section tunnel includes a first tunnel going up the subway and a second tunnel going down the subway, the method further includes a second smoke exhaust mode, and the second smoke exhaust mode includes:
The inlet ventilation unit of the first tunnel is set to the air supply state, the outlet ventilation unit of the second tunnel is set to the smoke exhaust state, and the damper that communicates the second ascending and descending is turned on;
The inlet ventilation unit of the second tunnel is set to the air supply state, the outlet ventilation unit of the first tunnel is set to the smoke exhaust state, and the damper that communicates the first ascending and descending is turned on;
The method for fire ventilation and flue gas in a tunnel having a long and large section in a subway penetrating a river or the sea according to claim 5, wherein the blast smoke exhaust port is turned on. A third smoke exhaust mode is included, the third smoke exhaust mode includes:
When the end of the following vehicle ignites, it notifies that the preceding vehicle will continue ahead;
The subway penetrating a river or sea according to claim 5, wherein the inlet ventilation unit is set to a smoke exhaust state, the outlet ventilation unit is set to an air supply state, and the blower smoke exhaust port is turned on. Fire ventilation and smoke exhaust method for tunnels with long and large sections. The subway section tunnel includes a first tunnel going up the subway and a second tunnel going down the subway, the method further includes a fourth smoke exhaust mode, and the fourth smoke exhaust mode includes:
When the end of the following vehicle ignites, it notifies that the preceding vehicle will continue ahead;
The inlet ventilation unit of the first tunnel is set to the smoke exhaust state, the outlet ventilation unit of the second tunnel is set to the air supply state, and the damper that communicates the second ascending and descending is turned on;
The inlet ventilation unit of the second tunnel is set to the smoke exhaust state, the outlet ventilation unit of the first tunnel is set to the air supply state, and the damper that communicates the first up and down is turned on;
The method for fire ventilation and flue gas in a tunnel having a long and large section in a subway penetrating a river or the sea according to claim 5, wherein the blast smoke exhaust port is turned on.

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