CN111256287A - Distributed smoke exhaust system for subway station platform and air volume adjusting method - Google Patents
Distributed smoke exhaust system for subway station platform and air volume adjusting method Download PDFInfo
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- CN111256287A CN111256287A CN202010071694.3A CN202010071694A CN111256287A CN 111256287 A CN111256287 A CN 111256287A CN 202010071694 A CN202010071694 A CN 202010071694A CN 111256287 A CN111256287 A CN 111256287A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
- F24F11/34—Responding to malfunctions or emergencies to fire, excessive heat or smoke by opening air passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Ventilation (AREA)
Abstract
The embodiment of the invention provides a distributed smoke exhaust system for a subway station platform and an air volume adjusting method, wherein the system comprises a main smoke exhaust air channel and a plurality of branch smoke exhaust air channels, wherein: an air inlet of the main smoke exhaust duct is communicated with a first smoke exhaust chamber and is used for intensively exhausting smoke in a public area of a subway platform through a smoke exhaust fan, wherein the first smoke exhaust chamber is used for intensively exhausting the smoke exhausted by the plurality of branch smoke exhaust ducts and exhausting the concentrated smoke through an air outlet of the main smoke exhaust duct; the plurality of branch smoke exhaust air channels are arranged in a distributed structure in sequence and are arranged above a public area of the subway platform, each branch smoke exhaust air channel is provided with a corresponding smoke exhaust air port and a corresponding branch air valve, so that the smoke exhaust amount of each branch smoke exhaust air channel is adjusted according to the smoke exhaust air port and the corresponding branch air valve, and the length of each branch smoke exhaust air channel is different. The embodiment of the invention provides a more favorable smoke environment for people evacuation, and reduces casualties and property loss.
Description
Technical Field
The invention relates to the technical field of fire ventilation and smoke exhaust, in particular to a distributed smoke exhaust system for a subway station platform and an air volume adjusting method.
Background
At present, the risk that exists in the public district of subway station mainly is the high gathering of passenger flow, the various potential risks that big passenger flow cross conflict brought, and the platform of subway station is passenger train gathering place of getting on or off, and the station belongs to personnel intensive place, in case the conflagration breaks out, if can not in time discharge the conflagration flue gas effectively, control the intensity of a fire, causes great accident very easily.
In order to solve the problems, the existing underground station engineering of the subway is provided with a ventilation and smoke exhaust system so as to effectively exhaust fire smoke of the station in time and reduce casualties and property loss caused by the fire smoke as far as possible.
However, the existing design of the fire ventilation and smoke exhaust system of the underground platform of the subway station mostly aims at the platform to carry out balanced design, namely the smoke exhaust amount of each smoke exhaust port is balanced; aiming at a station with a large opening of a building staircase, which is communicated between a platform and a station hall, the generated air supplementing effect is not ideal enough, and the positions of the exhaust air outlets of all rows cannot be comprehensively utilized to effectively and comprehensively distribute air quantity, so that the exhaust effect can not be maximized, and the utilization efficiency of a ventilation and exhaust system of a subway station is low.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides a distributed smoke exhaust system for a subway station platform and an air volume adjusting method.
In a first aspect, an embodiment of the present invention provides a distributed smoke exhaust system for a platform of a subway station, including a main smoke exhaust duct and a plurality of branch smoke exhaust ducts, where:
the air inlet of the main smoke exhaust duct is communicated with a first smoke exhaust air chamber and is used for intensively exhausting smoke in a public area of a subway platform through a smoke exhaust fan, wherein the first smoke exhaust air chamber is used for intensively exhausting the smoke exhausted by a plurality of branch smoke exhaust ducts and then exhausting the concentrated smoke through the air outlet of the main smoke exhaust duct, and a main air valve is arranged on the main smoke exhaust duct;
the plurality of branch smoke exhaust air channels are arranged in a distributed structure in sequence and are arranged above a public area of the subway station platform, each branch smoke exhaust air channel is provided with a corresponding smoke exhaust opening and a corresponding branch air valve so as to adjust the smoke exhaust amount of the branch smoke exhaust air channel according to the smoke exhaust openings and the branch air valves, each branch smoke exhaust air channel is communicated with the main smoke exhaust air channel through the branch air valve and the first smoke exhaust air chamber, and the length of each branch smoke exhaust air channel is different.
Furthermore, the distributed smoke exhaust system comprises a plurality of main smoke exhaust air channels, and the main smoke exhaust air channels and the branch smoke exhaust air channels are arranged according to the internal plane structure of each subway platform public area.
Furthermore, the plurality of branch smoke exhaust air channels are arranged at the opening of the escalator between the subway platform public area and the station hall public area.
Furthermore, mufflers are arranged at the air inlet and the air outlet of the smoke exhaust fan and used for reducing noise of the smoke exhaust fan.
Furthermore, a second smoke exhaust chamber is arranged at the air outlet of the main smoke exhaust duct, and a smoke exhaust air shaft is arranged at the air outlet of the second smoke exhaust chamber.
In a second aspect, an embodiment of the present invention provides an air volume adjusting method for a distributed smoke exhaust system for a subway station platform based on the first aspect, including:
acquiring the position of a fire point of a public area of a subway platform;
and adjusting the smoke discharge amount of the branch smoke discharge air duct according to the ignition point position so as to adjust the air volume of the distributed smoke discharge system.
Further, according to the ignition point position, adjust the volume of discharging fume of branch line exhaust duct, include:
and adjusting the ignition point position and the opening amplitude of a branch air valve or a smoke exhaust port of the branch smoke exhaust duct at the preset position so as to adjust the smoke exhaust amount of the branch smoke exhaust duct.
Further, the preset positions include: the opening of the staircase between the public area of the subway platform and the public area of the station hall and/or the passenger evacuation path area of the subway platform.
In a third aspect, an embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the method provided in the second aspect when executing the program.
In a fourth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the method as provided in the second aspect.
According to the distributed smoke exhaust system and the air quantity adjusting method for the subway station platform, provided by the embodiment of the invention, the smoke exhaust quantity of each branch smoke exhaust air channel is changed by adjusting the air valve of each branch smoke exhaust air channel which is distributed above the public area of the subway station platform, so that the smoke exhaust speed of the smoke exhaust air port at the corresponding position is increased, a more favorable smoke environment is provided for personnel evacuation when a fire disaster happens in the public area of the subway station platform, and casualties and property loss are reduced to the greatest extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a distributed smoke evacuation system for a platform of a subway station according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an air volume adjusting method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
description of reference numerals: d1 — first branch line blast gate; d2-second branch air valve; d3-third branch air valve; d4-main damper; f1-first flue gas plenum; f2-a second flue gas plenum; g1 — first smoke vent; g2-second Smoke exhaust ventilator; g3-third Smoke exhaust ventilator; l1-first branch smoke evacuation duct; l2-second branch smoke evacuation duct; l3-third branch smoke evacuation duct; l4-main flue gas duct; t-smoke exhaust fan; j-smoke exhaust air shaft; an X-silencer.
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. 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.
In the conventional subway platform public area, because the openings of the stairs communicated between the platform and the station hall are large, the generated air supplementing effect is not ideal enough, and the positions of the smoke exhaust openings cannot be comprehensively utilized to effectively and comprehensively distribute air quantity, so that the maximization of the smoke exhaust effect cannot be realized.
Fig. 1 is a schematic structural diagram of a distributed smoke exhaust system for a subway station platform according to an embodiment of the present invention, which can be seen in fig. 1, and an embodiment of the present invention provides a distributed smoke exhaust system for a subway station platform, including a main smoke exhaust duct L4 and a plurality of branch smoke exhaust ducts (in the embodiment of the present invention, 3 branch smoke exhaust ducts are illustrated, and are a first branch smoke exhaust duct L1, a second branch smoke exhaust duct L2, and a third branch smoke exhaust duct L3 respectively), where:
an air inlet of the main smoke exhaust duct L4 is communicated with a first smoke exhaust air chamber F1 and is used for intensively exhausting smoke in a public area of a subway platform through a smoke exhaust fan T, wherein the first smoke exhaust air chamber F1 is used for intensively exhausting the smoke exhausted by a plurality of branch smoke exhaust ducts and then exhausting the concentrated smoke through an air outlet of the main smoke exhaust duct L4, and a main air valve D4 is arranged on the main smoke exhaust duct L4;
the plurality of branch smoke exhaust air channels are arranged in a distributed structure in sequence and are arranged above a public area of the subway station platform, each branch smoke exhaust air channel is provided with a corresponding smoke exhaust air port and a corresponding branch air valve so as to adjust the smoke exhaust amount of the branch smoke exhaust air channel according to the smoke exhaust air port and the corresponding branch air valve, each branch smoke exhaust air channel is communicated with the main smoke exhaust air channel L4 through the branch air valve and the first smoke exhaust air chamber F1, and the length of each branch smoke exhaust air channel is different.
In the embodiment of the present invention, referring to fig. 1, the plane layout of the subway platform public area is more regular, and the main exhaust flue L4, the first branch exhaust flue L1, the second branch exhaust flue L2, and the third branch exhaust flue L3 may be symmetrically arranged, wherein 2 main exhaust flues L4 are provided, and are arranged at the left and right ends of the subway platform public area, and each branch exhaust flue is symmetrically distributed with the center position of the subway platform public area. Correspondingly, smoke discharging branch ports and branch smoke discharging air valves on each branch smoke discharging air duct are also arranged, namely 2 first branch smoke discharging air ducts L1 and corresponding first smoke discharging air ports G1 are symmetrically arranged above a public area of the subway platform, 2 second branch smoke discharging air ducts L2 and corresponding second smoke discharging air ports G2 are symmetrically arranged, 2 third branch smoke discharging air ducts L3 and corresponding third smoke discharging air ports G3 are symmetrically arranged, and the air volume of each first branch smoke discharging air duct L1, second branch smoke discharging air duct L2 and third branch smoke discharging air duct L3 can be independently controlled through corresponding first branch air duct D1, second branch air duct D2 and third branch air duct D59648 respectively, so that all the first branch smoke discharging air ducts L1, second branch smoke discharging air ducts L2 and third branch smoke discharging air ducts L632 above the public area of the subway are communicated with a first branch air duct D638, a second branch air duct D3 and a third branch air duct F1 through corresponding first branch air duct D638 and third branch air duct D1, and then to the main flue stack L4. It should be noted that, in fig. 1, the interior planar structure of the public area of the subway platform is symmetrical, and therefore, the first branch smoke exhaust duct L1, the second branch smoke exhaust duct L2 and the third branch smoke exhaust duct L3 are also symmetrically arranged on the other side of the central position of the public area of the subway platform, preferably, the lengths of the first branch smoke exhaust duct L1, the second branch smoke exhaust duct L2 and the third branch smoke exhaust duct L3 may be sequentially increased according to the interior planar structure of the public area of the subway platform, so that the space occupation of the branch smoke exhaust ducts is more reasonable.
According to the distributed smoke exhaust system for the subway station platform, provided by the embodiment of the invention, the smoke exhaust amount of each branch smoke exhaust air channel is changed by adjusting the air valve of each branch smoke exhaust air channel which is distributed above the public area of the subway station platform, so that the smoke exhaust speed of the smoke exhaust air port at the corresponding position is increased, a more favorable smoke environment is provided for personnel evacuation when a fire disaster happens in the public area of the subway station platform, and casualties and property loss are reduced to the greatest extent.
Preferably, on the basis of the above embodiment, the distributed smoke exhaust system includes a plurality of main smoke exhaust ducts L4, and a plurality of main smoke exhaust ducts L4 and a plurality of branch smoke exhaust ducts are arranged according to an internal plane structure of each subway platform public area.
In the embodiment of the present invention, a plurality of main smoke exhaust ducts L4 (at least 2) are provided in the public area of the subway platform, as shown in fig. 1, a first smoke exhaust chamber F1 and a main smoke exhaust duct L4 are provided at both ends of the public area of the subway platform, and branch smoke exhaust ducts in symmetrical directions are provided above the public area of the subway platform according to the internal planar structure of the public area of the subway platform and the position of the main smoke exhaust duct L4, so as to increase the smoke exhaust amount of the public area of the subway platform. It should be noted that, in the embodiment of the present invention, if the internal planar structure of the public area of the subway platform is an irregular structure, a plurality of main smoke exhaust ducts L4 may be arranged above the public area of the subway platform according to actual requirements, and a plurality of corresponding branch smoke exhaust ducts may be arranged according to the position of the main smoke exhaust duct L4.
Further, on the basis of the above embodiment, referring to fig. 1, the air inlet and the air outlet of the smoke exhaust fan T are provided with silencers X for reducing the noise of the smoke exhaust fan, it should be noted that in the embodiment of the present invention, the silencers X may be installed on one side or both sides of the smoke exhaust fan T.
The air outlet of the main smoke exhaust duct L4 is provided with a second smoke exhaust chamber F2, and the air outlet of the second smoke exhaust chamber F2 is provided with a smoke exhaust air shaft J.
In the embodiment of the invention, a smoke exhaust air shaft J is communicated with a second smoke exhaust air chamber F2, a main smoke exhaust air channel L4 is communicated with a second smoke exhaust air chamber F2 through a smoke exhaust fan T, a first branch air valve D1 is arranged on a first branch smoke exhaust air channel L1, a second branch air valve D2 is arranged on a second branch smoke exhaust air channel L2, a third branch air valve D3 is arranged on a third branch smoke exhaust air channel L3, and a main air valve D4 is arranged on the main smoke exhaust air channel L4, wherein the branch air valves are all arranged at the air outlet end of the corresponding branch smoke exhaust air channel; the first smoke exhaust air port G1 is arranged on the first branch smoke exhaust air duct L1, the second smoke exhaust air port G2 is arranged on the second branch smoke exhaust air duct L2, and the third smoke exhaust air port G3 is arranged on the third branch smoke exhaust air duct L3, wherein the smoke exhaust air ports can be arranged at corresponding positions of the branch smoke exhaust air ducts according to the layout of a public area of a subway platform, for example, people in the platform are concentrated, the escalator is located or the elevator is queued.
On the basis of the embodiment, the plurality of branch smoke exhaust air channels are arranged at the opening of the escalator between the subway platform public area and the station hall public area.
In the embodiment of the invention, branch smoke exhaust channels can be arranged at the positions according to the layout of the openings of the stairs between the subway platform public area and the station hall public area, so that the smoke exhaust amount in the case of fire is increased.
Fig. 2 is a schematic flow chart of an air volume adjusting method according to an embodiment of the present invention, and as shown in fig. 2, an air volume adjusting method according to an embodiment of the present invention includes:
and step 202, adjusting the smoke discharge amount of the branch smoke discharge air channel according to the ignition point position so as to adjust the air volume of the distributed smoke discharge system.
In the embodiment of the present invention, referring to fig. 1, in the case of a fire at the first smoke exhaust outlet G1 of the first branch smoke exhaust duct L1, in the case of a fire at the location of the public area of the subway platform, the main air valve D4 is fully opened, the first branch air valve D1, the second branch air valve D2 and the third branch air valve D3 are simultaneously opened, the opening amplitudes of the first branch air valve D1, the second branch air valve D2 and the third branch air valve D3 are simultaneously adjusted, so that the opening amplitude percentages of the first branch air valve D1 and the third branch air valve D3 are greater than the opening amplitude percentages of the second branch air valve D2, and then the smoke exhaust fan T is opened; through the opening and closing degree adjustment of the first branch air valve D1, the second branch air valve D2 and the third branch air valve D3, the smoke discharge amount of the first branch smoke discharge air duct L1 near the ignition point is increased, and therefore smoke at the ignition point is discharged quickly. In an embodiment of the invention, the smoke discharge amount of the third branch smoke exhaust duct L3 and the smoke discharge amount of the first branch smoke exhaust duct L1 (the first branch smoke exhaust duct L1 is close to the escalator opening between the platform and the station hall, and when a plurality of branch smoke exhaust ducts are provided, branch air valves of other branch smoke exhaust ducts close to the escalator opening between the platform and the station hall are opened to increase the smoke discharge amount) on the opposite side of the fire point are increased, and the air supply amount at the escalator opening between the platform and the station hall except the escalator opening at the fire point is increased to a certain extent. Correspondingly, in the embodiment of the invention, the control of the smoke discharge amount can also be realized by adjusting the opening amplitude of the smoke discharge air ports on the branch smoke discharge air duct. It should be noted that when a fire breaks out at other positions of the subway platform public area, the air volume adjusting method provided by the above embodiment adjusts the smoke volume at the corresponding ignition point, so as to accelerate the control of the smoke of the fire at the ignition point, enhance the smoke volume at the opening of the available evacuation building escalator, increase the air supplement volume at the opening of the available evacuation building escalator to a certain extent, and be more beneficial to evacuation and escape of people.
According to the air quantity adjusting method provided by the embodiment of the invention, the smoke discharge quantity of each branch smoke discharge air channel is changed by adjusting the air valve of each branch smoke discharge air channel which is distributed above the public area of the subway platform, so that the smoke discharge speed of the smoke discharge air port at the corresponding position is increased, a more favorable smoke environment is provided for personnel evacuation when a fire disaster occurs in the public area of the subway platform, and casualties and property loss are reduced to the greatest extent.
On the basis of the above embodiment, the adjusting the smoke discharge amount of the branch smoke discharge duct according to the position of the ignition point includes:
and adjusting the ignition point position and the opening amplitude of a branch air valve or a smoke exhaust port of the branch smoke exhaust duct at the preset position so as to adjust the smoke exhaust amount of the branch smoke exhaust duct.
On the basis of the above embodiment, the preset positions include: the opening of the staircase between the public area of the subway platform and the public area of the station hall and/or the passenger evacuation path area of the subway platform.
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and referring to fig. 3, the electronic device may include: a processor (processor)301, a communication Interface (communication Interface)302, a memory (memory)303 and a communication bus 304, wherein the processor 301, the communication Interface 302 and the memory 303 complete communication with each other through the communication bus 304. Processor 301 may call logic instructions in memory 303 to perform the following method: acquiring the position of a fire point of a public area of a subway platform; and adjusting the smoke discharge amount of the branch smoke discharge air duct according to the ignition point position so as to adjust the air volume of the distributed smoke discharge system.
In addition, the logic instructions in the memory 303 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
On the other hand, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to, when executed by a processor, perform the air volume adjusting method provided in the foregoing embodiments, for example, including: acquiring the position of a fire point of a public area of a subway platform; and adjusting the smoke discharge amount of the branch smoke discharge air duct according to the ignition point position so as to adjust the air volume of the distributed smoke discharge system.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a distributed system of discharging fume for subway station platform which characterized in that, includes main exhaust fume duct and a plurality of branch line exhaust fume duct, wherein:
the air inlet of the main smoke exhaust duct is communicated with a first smoke exhaust air chamber and is used for intensively exhausting smoke in a public area of a subway platform through a smoke exhaust fan, wherein the first smoke exhaust air chamber is used for intensively exhausting the smoke exhausted by a plurality of branch smoke exhaust ducts and then exhausting the concentrated smoke through the air outlet of the main smoke exhaust duct, and a main air valve is arranged on the main smoke exhaust duct;
the plurality of branch smoke exhaust air channels are arranged in a distributed structure in sequence and are arranged above a public area of the subway station platform, each branch smoke exhaust air channel is provided with a corresponding smoke exhaust opening and a corresponding branch air valve so as to adjust the smoke exhaust amount of the branch smoke exhaust air channel according to the smoke exhaust openings and the branch air valves, each branch smoke exhaust air channel is communicated with the main smoke exhaust air channel through the branch air valve and the first smoke exhaust air chamber, and the length of each branch smoke exhaust air channel is different.
2. The distributed smoke evacuation system for subway station platforms as claimed in claim 1, wherein said distributed smoke evacuation system comprises a plurality of said main smoke evacuation ducts, said plurality of main smoke evacuation ducts and said plurality of branch smoke evacuation ducts being arranged according to an internal plan structure of each subway platform public area.
3. The distributed smoke evacuation system for a subway station platform as claimed in claim 2, wherein said plurality of branch smoke evacuation ducts are provided at escalator opening between a subway platform public area and a station hall public area.
4. The distributed smoke exhaust system for a subway station platform as claimed in claim 1, wherein said smoke exhaust fan air inlet and air outlet are provided with mufflers for reducing noise of said smoke exhaust fan.
5. The distributed smoke evacuation system for a subway station platform as claimed in claim 1, wherein said air outlet of said main smoke evacuation duct is provided with a second smoke evacuation plenum, and said air outlet of said second smoke evacuation plenum is provided with a smoke evacuation shaft.
6. The air volume adjusting method for the distributed smoke exhaust system for the subway station platform according to any one of claims 1 to 5, comprising:
acquiring the position of a fire point of a public area of a subway platform;
and adjusting the smoke discharge amount of the branch smoke discharge air duct according to the ignition point position so as to adjust the air volume of the distributed smoke discharge system.
7. The air volume adjusting method according to claim 6, wherein the adjusting of the smoke discharge volume of the branch smoke discharge duct according to the ignition point position includes:
and adjusting the ignition point position and the opening amplitude of a branch air valve or a smoke exhaust port of the branch smoke exhaust duct at the preset position so as to adjust the smoke exhaust amount of the branch smoke exhaust duct.
8. The air volume adjusting method according to claim 7, wherein the preset position includes: the opening of the staircase between the public area of the subway platform and the public area of the station hall and/or the passenger evacuation path area of the subway platform.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the air volume adjusting method according to any one of claims 6 to 8 when executing the program.
10. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the air volume adjusting method according to any one of claims 6 to 8.
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| CN202010071694.3A CN111256287A (en) | 2020-01-21 | 2020-01-21 | Distributed smoke exhaust system for subway station platform and air volume adjusting method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912061A (en) * | 2020-07-23 | 2020-11-10 | 广州地铁设计研究院股份有限公司 | Air conditioning system for subway station |
| CN112523792A (en) * | 2020-12-09 | 2021-03-19 | 林同棪国际工程咨询（中国）有限公司 | Subway station platform smoke discharge control system and control method thereof |
| CN113813534A (en) * | 2021-09-17 | 2021-12-21 | 一番集(上海)科技发展有限公司 | Environment-friendly lithium battery axial flow wind fire extinguisher and use method thereof |
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| CN113813534A (en) * | 2021-09-17 | 2021-12-21 | 一番集(上海)科技发展有限公司 | Environment-friendly lithium battery axial flow wind fire extinguisher and use method thereof |
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Application publication date: 20200609 |