CN111878954B - Use method of pipe gallery ventilation system of non-gas pipeline cabin - Google Patents
Use method of pipe gallery ventilation system of non-gas pipeline cabin Download PDFInfo
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- CN111878954B CN111878954B CN202010765137.1A CN202010765137A CN111878954B CN 111878954 B CN111878954 B CN 111878954B CN 202010765137 A CN202010765137 A CN 202010765137A CN 111878954 B CN111878954 B CN 111878954B
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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
- F24F7/007—Ventilation with forced flow
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Combustion & Propulsion (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a pipe gallery ventilation system of a non-gas pipeline cabin and a using method thereof, wherein a ground opening part comprises a ground exhaust pavilion and a ground air supply pavilion; the pipe gallery ventilation machine room comprises a ventilation machine room, an air supply machine room, an air exhaust machine room and an electric fireproof valve machine room; the ground exhaust booth is provided with a ventilator access opening after a first accident; the ventilator access port after the first accident is provided with a first movable exhaust fan; the ground air supply booth is provided with a second post-accident ventilator access port; the ventilator access port is provided with a second mobile blower after the second accident. When a fire disaster occurs, the fixed exhaust fan, the fixed air blower and the electric fireproof valve are closed, the first movable exhaust fan and the second movable air blower are respectively arranged at the first accident rear ventilator access port and the second accident rear ventilator access port to stand by, after the oxygen deficiency in the pipe gallery is stopped, the ventilation after the accident is carried out, and residual smoke and heat are removed. The invention can realize ventilation after accidents after fire in the pipe gallery.
Description
Technical Field
The invention relates to the technical field of underground pipe gallery ventilation, in particular to a use method of a pipe gallery ventilation system of a non-gas pipeline cabin.
Background
The utility tunnel (Japanese called "common ditch", taiwan called "common pipeline") is an underground urban pipeline utility tunnel, namely, a tunnel space is built underground in the city, various engineering pipelines such as electric power, communication, fuel gas, heat supply, water supply and drainage are integrated, a special maintenance opening, a lifting opening and a monitoring system are arranged, unified planning, unified design, unified construction and management are implemented, and the utility tunnel is an important infrastructure and a lifeline for guaranteeing urban operation.
Ventilation system in city piping lane needs to satisfy: 1, the basic air quality of the working environment in the channel can be maintained under normal working conditions, peculiar smell, waste heat, residual moisture and toxic and harmful gas in the pipe gallery are removed 2, when the extinction of the fire disaster in the pipe gallery is confirmed, the corresponding air delivering and exhausting fan and the fireproof valve are started to ventilate the post-disaster accident of the fire passing section, the residual smoke and heat are removed, and a qualified overhaul working environment is created for the post-disaster cabin.
In the prior art, in projects such as urban pipe galleries including Tianjin in Jiabao finance area underground pipe galleries, shanghai Lingang New Yongbei island western road comprehensive pipe galleries, hangzhou city Desheng road pipe galleries and the like, the main design thinking is mostly to set up ventilation computer lab at pipe gallery side or upper portion to burden ventilation in the pipe gallery through the form of connecting the tuber pipe. The setting mode of this kind of ventilation computer lab either increases the civil engineering scope of engineering, or occupy a certain amount of commercial area in the adjacent plot, and each piping lane cabin ventilation system and the accident after the conflagration ventilation system set up independently respectively, like this can influence the ventilation computer lab area of piping lane, has increased construction cost, has also increased very big cost for later operation, and the loaded down with trivial details of system has also brought very big difficulty for the management.
Therefore, how to meet the ventilation requirements of urban pipe galleries and after fire accidents, and the use space of pipe gallery ventilation machine rooms can be reasonably optimized and utilized, and the ventilation system capable of reducing construction and operation management costs becomes a technical problem which needs to be solved by the technicians in the field.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a method for using a piping lane ventilation system of a non-gas pipeline cabin, which can not only effectively remove odor, waste heat, residual moisture and toxic and harmful gases in the piping lane, but also rapidly remove residual flue gas and heat after a fire disaster, and can maximally reduce construction cost in an implementation period and daily operation cost in an operation period.
To achieve the above object, the present invention discloses a piping lane ventilation system for a non-gas line compartment, comprising a floor finish, a piping lane ventilation room, and a piping lane main body.
Wherein the ground opening comprises a ground exhaust booth and a ground air supply booth;
the pipe gallery ventilation machine room comprises a ventilation machine room, an air supply machine room, an air exhaust machine room and an electric fireproof valve machine room; the air supply machine room is provided with a fixed air supply machine; the exhaust machine room is provided with a fixed exhaust fan; the electric fire-proof valve machine room is provided with a manual fire-proof valve;
each partition wall or middle plate between the pipe gallery ventilating machine room and the pipe gallery main body is provided with an electric fireproof valve;
the piping lane body includes at least a first non-fuel gas line compartment and a second non-fuel gas line compartment;
the ground exhaust booth is provided with a ventilator access opening after a first accident; the ventilator access port after the first accident is provided with a first movable exhaust fan;
the ground air supply booth is provided with a second post-accident ventilator access port; the second movable air feeder is arranged at the inlet of the second post-accident ventilator.
Preferably, the distance between the bottom edge of the shutter and the bottom edge of the access port of the ground air supply booth is not less than the flood-proof height.
The invention also provides a using method of the pipe gallery ventilation system of the non-gas pipeline cabin, which comprises the following steps:
during normal ventilation, the ground exhaust pavilion, the first post-accident ventilator access port, the fixed exhaust fan, the fixed blower, the manual fire prevention valve and the electric fire prevention valve are operated in a combined mode, and ventilation requirements of the first non-gas pipeline cabin, the second non-gas pipeline cabin and other non-gas pipeline cabins are met by adjusting opening and closing of the electric fire prevention valve;
when a fire disaster occurs, the fixed exhaust fan, the fixed air blower and the electric fireproof valve are closed, the first movable exhaust fan and the second movable air blower are respectively arranged at the first post-accident ventilator access port and the second post-accident ventilator access port to stand by, after the oxygen deficiency and the flame stopping in the pipe gallery are carried out, post-accident ventilation is carried out, and residual smoke and heat are removed;
when ventilation is performed after an accident after a fire disaster, the ground air supply pavilion, the inlet of the second accident rear ventilator, the manual fire prevention valve, the electric fire prevention valve, the first movable exhaust fan and the second movable air blower are operated in a combined mode so as to meet the ventilation and smoke exhaust requirements of blocking or fire disaster working conditions.
The invention has the beneficial effects that:
the pipe gallery ventilation system of the non-gas pipeline cabin is reliable in technology, ventilation in the pipe gallery and ventilation after accidents after fire disaster can be realized, space in the pipe gallery is reasonably utilized, construction cost and operation management cost can be saved, and the pipe gallery ventilation system has universal applicability to urban pipe galleries and is convenient to popularize in similar projects.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
Fig. 1 shows a schematic view of a ventilation system for a piping lane body in an embodiment of the present invention.
Fig. 2 shows a schematic diagram of an air-sending machine room arrangement according to an embodiment of the present invention.
Fig. 3 shows a schematic view of an exhaust room arrangement according to an embodiment of the invention.
Figure 4 shows a schematic cross-sectional view of an embodiment of the invention.
Detailed Description
Examples
As shown in fig. 1-4, the piping lane ventilation system for a non-gas line compartment includes a floor finish, a piping lane ventilation room, and a piping lane main body.
Wherein the ground opening part comprises a ground exhaust booth 1-1 and a ground air supply booth 1-3;
the pipe gallery ventilation machine room comprises a ventilation machine room, an air supply machine room, an air exhaust machine room and an electric fireproof valve machine room; the air supply machine room is provided with fixed air blowers 1-6; the exhaust machine room is provided with a fixed exhaust fan 1-5; the electric fire-proof valve machine room is provided with manual fire-proof valves 1-7;
the partition wall or the middle plate between each pipe gallery ventilation machine room and the pipe gallery main body is provided with an electric fireproof valve 1-8;
the piping lane body comprises at least a first non-gas line compartment 2-1 and a second non-gas line compartment 2-2;
the ground exhaust booth 1-1 is provided with a first accident rear ventilator access port 1-2; the ventilator access port 1-2 after the first accident is provided with a first movable exhaust fan 2-4;
the ground air supply booth 1-3 is provided with a second post-accident ventilator access port 1-4; the second post-accident ventilator access port 1-4 is provided with a second mobile blower 2-5.
The principle of the invention is as follows:
according to 7.2.2 of urban comprehensive pipe gallery engineering technical Specification GB 50838-2015: the normal ventilation times should not be less than 2 times/h, and the accident ventilation times should not be less than 6 times/h.
In the prior art, 3 blowers and fans with ventilation times of 2 times or 2 blowers and fans with ventilation times of 3 times are often adopted as a section of pipe gallery ventilation partition pipe gallery for ventilation during normal operation. In the daily use of piping lane operators, only one fan is usually started, and ventilation after an accident rarely occurs.
Moreover, ventilation after the pipe gallery accident is in order to remove waste gas after the inside oxygen deficiency of pipe gallery fires section and ends fires and be convenient for maintain, and the required real-time smoke discharging of fire control in the time of not traditional sense, so the required fan of ventilation after relevant accident can adopt the movable fan of non-fixed mounting, ventilates the section of firing through inserting reserved civil engineering access department after the pipe gallery conflagration. The reduction of the number of the fixed fans by 66.66% can reduce the electric installation capacity and 66.66% of the installation area of the required equipment, thereby achieving the effect of reducing the electric charge of the machine room construction An Fei in the implementation period and the operation period.
In the prior art, the utility tunnel is often built by extending multiple cabins in parallel, so on the basis that the accident ventilation fan is used as a mobile fan, the idea that a plurality of non-gas cabin pipe tunnel ventilation sections share the same set of normal ventilation system is provided, and the maximum value of the required normal ventilation quantity is used as the calculated value of the multi-cabin common normal ventilation system.
In some embodiments, the height of the bottom edge of the louver of the ground air supply booth 1-3 from the bottom edge of the access opening is not less than the flood prevention height.
The invention also provides a using method of the pipe gallery ventilation system of the non-gas pipeline cabin, which comprises the following steps:
during normal ventilation, the ground exhaust pavilion 1-1, the first post-accident ventilator access port 1-2, the fixed exhaust fan 1-5, the fixed blower 1-6, the manual fire-proof valve 1-7 and the electric fire-proof valve 1-8 are operated in a combined mode, and ventilation requirements of the first non-fuel gas pipeline cabin 2-1, the second non-fuel gas pipeline cabin 2-2 and other non-fuel gas pipeline cabins are met by adjusting the opening and closing of the electric fire-proof valve 1-8;
when a fire disaster occurs, the fixed exhaust fan 1-5, the fixed air blower 1-6 and the electric fireproof valve 1-8 are closed, the first movable exhaust fan 2-4 and the second movable air blower 2-5 are respectively on standby at the first post-accident ventilator access port 1-2 and the second post-accident ventilator access port 1-4, after oxygen deficiency and flame stopping in the pipe gallery, post-accident ventilation is carried out, and residual smoke and heat are removed;
when ventilation is performed after an accident after a fire disaster, the ground air supply pavilion 1-3, the second post-accident ventilator access port 1-4, the manual fire prevention valve 1-7, the electric fire prevention valve 1-8, the first movable exhaust fan 2-4 and the second movable air blower 2-5 are operated in a combined mode so as to meet ventilation and smoke discharge requirements of blocking or fire disaster working conditions.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (2)
1. The use method of the pipe gallery ventilation system of the non-gas pipeline cabin comprises a ground opening part, a pipe gallery ventilation machine room and a pipe gallery main body; the floor opening is characterized by comprising a floor exhaust booth (1-1) and a floor air supply booth (1-3);
the pipe gallery ventilation machine room comprises a ventilation machine room, an air supply machine room, an air exhaust machine room and an electric fireproof valve machine room; the air supply machine room is provided with a fixed air supply machine (1-6); the exhaust machine room is provided with a fixed exhaust fan (1-5); the electric fire-proof valve machine room is provided with a manual fire-proof valve (1-7);
an electric fireproof valve (1-8) is arranged on a partition wall or a middle plate between each pipe gallery ventilating machine room and the pipe gallery main body;
the pipe gallery body includes at least a first non-gas line compartment (2-1) and a second non-gas line compartment (2-2);
the ground exhaust booth (1-1) is provided with a first post-accident ventilator access port (1-2); the first post-accident ventilator access port (1-2) is provided with a first movable exhaust fan (2-4);
a second post-accident ventilator access port (1-4) is arranged at the ground air supply booth (1-3); the second post-accident ventilator access port (1-4) is provided with a second movable blower (2-5);
during normal ventilation, the ground exhaust booth (1-1), the first post-accident ventilator access port (1-2), the fixed ventilator (1-5), the fixed blower (1-6), the manual fire-proof valve (1-7) and the electric fire-proof valve (1-8) are operated in a combined mode, and the ventilation requirements of the first non-gas pipeline cabin (2-1), the second non-gas pipeline cabin (2-2) and other non-gas pipeline cabins are met by adjusting the opening and closing of the electric fire-proof valve (1-8);
when a fire disaster occurs, the fixed exhaust fan (1-5), the fixed air feeder (1-6) and the electric fireproof valve (1-8) are closed, the first movable exhaust fan (2-4) and the second movable air feeder (2-5) are respectively arranged at the first post-accident ventilator access port (1-2) and the second post-accident ventilator access port (1-4) in standby mode, and after oxygen deficiency and flame stopping in a pipe gallery are carried out, post-accident ventilation is carried out, and residual smoke and heat are removed;
when ventilation is performed after a post-fire accident, the ground air supply pavilion (1-3) and the post-second-accident ventilator access port (1-4) are combined to operate, and the manual fire prevention valve (1-7) and the electric fire prevention valve (1-8) are combined to operate, so that ventilation and smoke discharge requirements of blocking or fire working conditions are met.
2. The method of using a piping lane ventilation system of a non-gas line cabin according to claim 1, wherein the height of the louver bottom edge of the ground air supply booth (1-3) from the access opening bottom edge is not less than the flood prevention height.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010765137.1A CN111878954B (en) | 2020-08-03 | 2020-08-03 | Use method of pipe gallery ventilation system of non-gas pipeline cabin |
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| CN202010765137.1A CN111878954B (en) | 2020-08-03 | 2020-08-03 | Use method of pipe gallery ventilation system of non-gas pipeline cabin |
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| CN111878954B true CN111878954B (en) | 2024-04-09 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203149A (en) * | 2021-05-17 | 2021-08-03 | 中冶赛迪工程技术股份有限公司 | Pipe gallery ventilation system and method |
| CN113446043A (en) * | 2021-08-13 | 2021-09-28 | 中国电建集团河北省电力勘测设计研究院有限公司 | Cable tunnel ventilator room arrangement method |
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| CN103761918A (en) * | 2014-01-29 | 2014-04-30 | 中国科学技术大学 | High-rise building stairwell or vertical shaft fire experimental simulation device under action of external wind |
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| CN108533305A (en) * | 2018-02-14 | 2018-09-14 | 中国安全生产科学研究院 | The ventilation smoke exhaust method of train fire in a kind of Subway Tunnel |
| CN209724395U (en) * | 2019-04-01 | 2019-12-03 | 山东建筑大学 | A Uniform Ventilation System for Gas Tanks in Urban Comprehensive Pipe Gallery |
| CN212253033U (en) * | 2020-08-03 | 2020-12-29 | 上海市城市建设设计研究总院（集团）有限公司 | Pipe gallery ventilation system of non-gas pipeline cabin |
-
2020
- 2020-08-03 CN CN202010765137.1A patent/CN111878954B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007100258A4 (en) * | 2007-03-30 | 2007-05-03 | Gardener, Peter Mr | Home cooling from sub floor space |
| CN103761918A (en) * | 2014-01-29 | 2014-04-30 | 中国科学技术大学 | High-rise building stairwell or vertical shaft fire experimental simulation device under action of external wind |
| CN205505294U (en) * | 2016-03-04 | 2016-08-24 | 绍兴上虞民用风机制造有限公司 | Portable fume extractor |
| CN108533305A (en) * | 2018-02-14 | 2018-09-14 | 中国安全生产科学研究院 | The ventilation smoke exhaust method of train fire in a kind of Subway Tunnel |
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