CN209923973U - Many fire prevention subregion ventilation system of utility tunnel - Google Patents
Many fire prevention subregion ventilation system of utility tunnel Download PDFInfo
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- CN209923973U CN209923973U CN201920382467.5U CN201920382467U CN209923973U CN 209923973 U CN209923973 U CN 209923973U CN 201920382467 U CN201920382467 U CN 201920382467U CN 209923973 U CN209923973 U CN 209923973U
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Abstract
A multi-fireproof partition ventilation system of a comprehensive pipe gallery comprises a ventilation area and a ground ventilation opening; the fire door is characterized in that a ventilation interval comprises two connected fire partitions, ground vents are arranged at two ends of the ventilation interval, one end of the ventilation interval is provided with a ground vent installation air feeder, the other end of the ventilation interval is provided with a ground vent installation exhaust fan, fire walls at two ends of the ventilation interval are respectively provided with a controllable normally closed fire door, and a controllable normally open fire door is arranged on the fire walls between the two connected fire partitions. Fire valves are arranged under the air feeder and the exhaust fan. In the case of normal ventilation: the blower and the blower fire damper, and the exhaust fan fire damper are turned on. Thereby forming a closed ventilation section in the ventilation section and ventilating the ventilation section. The number of the air vents on the ground and the number of the fans are reduced by about one third; the standard section length of the comprehensive pipe gallery is increased, so that the design and construction are simple, the investment is reduced, and the operation and maintenance are more convenient.
Description
Technical Field
The utility model belongs to utility tunnel ventilation field specifically provides a many fire prevention subregion ventilation system of utility tunnel.
Background
In recent years, the comprehensive pipe gallery engineering becomes a novel project type which is vigorously advocated and developed by the nation, and the pilot city is changed to the national construction. Utility tunnel is in the underground, daily needs ventilation to guarantee that the piping lane is good ventilation environment when normal operation, guarantee that fortune dimension personnel get into inside the requirement of carrying out pipeline installation, inspection and maintenance of piping lane, still guarantee that the piping lane is favorable to ventilation, control stretching of conflagration and personnel's sparse under the accident condition. Traditional utility tunnel ventilates and regards as a ventilation interval with a fire prevention subregion, consequently a ventilation interval both ends just respectively have a ground vent, lead to whole utility tunnel to go out ground vent numerous, greatly influenced road landscape on the one hand, on the other hand maintains the operation management inconvenient to the utility tunnel. Engineering practices show that the length of the standard segment of the comprehensive pipe gallery arranged under the system only accounts for about 60% of the total length of the pipe gallery, so that the application and development of a prefabrication and assembly technology advocated by the state in the comprehensive pipe gallery engineering are limited; the design and construction are also changed.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in providing a satisfy under the prerequisite of utility tunnel ventilation demand, reduce out the many fire prevention subregion ventilation system of ground vent.
The utility model provides a technical scheme as follows that above-mentioned technical problem took: a multi-fireproof partition ventilation system of a comprehensive pipe gallery comprises a ventilation area and a ground ventilation opening; the method is characterized in that: the fire door is characterized in that a ventilation interval comprises two connected fire partitions, ground vents are arranged at two ends of the ventilation interval, one end of the ventilation interval is provided with a ground vent installation air feeder, the other end of the ventilation interval is provided with a ground vent installation exhaust fan, fire walls at two ends of the ventilation interval are respectively provided with a controllable normally closed fire door, and a controllable normally open fire door is arranged on the fire walls between the two connected fire partitions.
Fire valves are arranged under the air feeder and the exhaust fan. In the case of normal ventilation: the blower and the blower fire damper, and the exhaust fan fire damper are turned on. Thereby forming a closed ventilation section in the ventilation section and ventilating the ventilation section.
In the event of a fire in either of two connected fire zones: firstly, the controllable normally-open fireproof door is closed, and the fire is controlled in a fire-proof subarea where the fire occurs.
In a traditional comprehensive pipe gallery ventilation system, one fire-proof subarea is used as a ventilation area, and three ground ventilation openings are needed for two fire-proof subareas; the utility model discloses regard as a ventilation interval two fire prevention subregion that link to each other, two fire prevention subregions only need two to go out the ground vent, two go out installation forced draught blowers of ground vent, another installation exhaust fan. Compared with the traditional comprehensive pipe gallery ventilation system, the two fire partitions are changed into two fire partitions only needing two ground vents on the basis that the two fire partitions need three ground vents, so that the number of the ground vents and the number of fans are reduced by about one third; the standard section length of the comprehensive pipe gallery is increased, so that the design and construction are simple, the investment is reduced, and the operation and maintenance are more convenient.
Drawings
Figure 1 is a schematic structural view of a multi-fire zone ventilation system of a utility tunnel.
In the figure: 1-first fire prevention subregion, 2-second fire prevention subregion, 3-first fire prevention wall, 4-second fire prevention wall, 5-third fire prevention fire wall, 6-first controllable fire door of preventing of normally closing, 7-controllable fire door of preventing normally opening, 8-controllable fire door of preventing normally closing of second, 9-forced draught blower, 10-exhaust fan, 11-first ground vent, 12-second ground vent, 13-the interval of ventilating, 14-forced draught blower fire prevention valve, 15-exhaust fan fire prevention valve.
Detailed Description
As shown in fig. 1: the utility model provides a multi-fire-prevention partition ventilation system of a comprehensive pipe gallery, which comprises a ventilation area and a ground ventilation opening; a ventilation interval 13 is including two continuous fire prevention subregion, first fire prevention subregion 1 and second fire prevention subregion 2 promptly, 13 both ends in ventilation interval set up out the ground vent, one end sets up first ground vent 11 promptly, the other end sets up second ground vent 12, wherein first ground vent 11 installation forced draught blower 9 of going out, the second goes out ground vent 12 installation exhaust fan 10, the hot wall at 13 both ends in ventilation interval sets up controllable normally closed fireproof door respectively, first prevent that hot wall 3 sets up first controllable normally closed fireproof door 6 promptly, third fire wall 5 sets up second controllable normally closed fireproof door 8, prevent that hot wall between two continuous fire prevention subregions sets up controllable normally open fireproof door 7, the second prevents that hot wall 4 sets up controllable normally open fireproof door 7 promptly.
The first fireproof subarea 1 consists of a first fireproof wall 3, a second fireproof wall 4, a first controllable normally closed fireproof door 6 and a controllable normally open fireproof door 7; the second fire prevention subarea 2 is composed of a second fire prevention wall 4, a third fire prevention wall 5, a controllable normally-open fire prevention door 7 and a second controllable normally-closed fire prevention door 8. The ventilation zone 13 is formed by the first fire compartment 1 and the second fire compartment 2.
The blower 9 is positioned in the first ground outlet ventilation opening 11 and is responsible for sending outside air into a ventilation area 13; the exhaust fan 10 is located in the second floor vent 12 and is responsible for exhausting air from the ventilation zone 13 to the outside.
In case prevent in case the piping lane from taking place the conflagration, transmit the earth's surface, as the utility model discloses a perfect, installation forced draught blower fire prevention valve 14 below forced draught blower 9, exhaust fan fire prevention valve 15 is installed to exhaust fan 10 below.
In the case of normal ventilation: the first controllable fire door 6 and the second controllable fire door 8 are normally closed,
the controllable normally-open fireproof door 7 is normally open, the air feeder 9 and the air feeder fireproof valve 14 are opened, and the exhaust fan 0 and the exhaust fan fireproof valve 15 are also opened 1; thereby, a closed ventilation section is formed in the ventilation section 13, and ventilation is performed in the ventilation section 13.
In the event of a fire in the first fire zone: firstly, closing a controllable normally-open fireproof door 7, and controlling a fire disaster in a first fireproof subarea 1; and secondly, closing 14 the blower fire valve, the blower 9, the exhaust blower fire valve 15 and the exhaust blower 10 to enable the first fire-proof subarea to be a sealed non-ventilation interval, so as to achieve the aim of extinguishing fire by suffocation. And finally, after the fire is extinguished, opening the controllable normally-open fireproof door, and opening the air feeder, the air feeder fireproof valve, the exhaust fan and the exhaust fan fireproof valve, thereby forming a ventilation interval. On the one hand, a large amount of dense smoke exhaust pipe galleries gathered in the first fireproof subarea are exhausted through the exhaust fan, on the other hand, a large amount of fresh air is sent into through the air feeder, and the purpose of exhausting smoke after fire is exhausted is achieved.
Similarly, under the condition that the fire disaster happens in the first fire prevention subarea: closing the controllable normally-open fireproof door, and controlling the fire in a second fireproof subarea; the fire valve of the air feeder, the fire valve of the exhaust fan and the exhaust fan are closed, so that the second fire-proof subarea becomes a closed non-ventilation interval, and the aim of suffocating and fire extinguishing is fulfilled. After the fire is extinguished, the controllable normally-open fireproof door is opened, and the air feeder, the air feeder fireproof valve, the exhaust fan and the exhaust fan fireproof valve are opened, so that a ventilation interval is formed. On the one hand, a large amount of dense smoke exhaust pipe galleries gathered in the first fireproof subarea are exhausted through the exhaust fan, on the other hand, a large amount of fresh air is sent into through the air feeder, and the purpose of exhausting smoke after fire is exhausted is achieved.
Claims (4)
1. A multi-fireproof partition ventilation system of a comprehensive pipe gallery comprises a ventilation area and a ground ventilation opening; the method is characterized in that: a ventilation interval (13) is including two continuous fire prevention subregion, and the interval both ends of ventilating set up out the ground vent, and wherein one end goes out ground vent installation forced draught blower (9), and the other end goes out ground vent installation exhaust fan (10), and the hot wall that prevents at interval (13) both ends of ventilating sets up controllable normal close respectively and prevents fire door, and the hot wall setting between two continuous fire prevention subregions prevents fire door (7) are normally opened controllably.
2. The utility tunnel multi-fire zone ventilation system of claim 1, wherein: two continuous fire prevention subregion are first fire prevention subregion (1) and second fire prevention subregion (2), ventilation interval (13) one end sets up first play ground vent (11), the other end sets up second play ground vent (12), first play ground vent (11) installation forced draught blower (9), the second goes out ground vent (12) installation exhaust fan (10), ventilation interval (13) both ends are equipped with first fire prevention wall (3) and third fire prevention firewall (5), first fire prevention wall (3) set up first controllable normally closed fire door (6), third fire prevention firewall (5) set up second controllable normally closed fire door (8), fire wall between two continuous fire prevention subregions prevents fire wall (4) for the second, second prevents fire door (4) and sets up controllable normally open fire door (7).
3. The utility tunnel multi-fire zone ventilation system of claim 2, wherein: the first fireproof partition (1) consists of a first fireproof wall (3), a second fireproof wall (4), a first controllable normally closed fireproof door (6) and a controllable normally open fireproof door (7); the second fireproof partition (2) is composed of a second fireproof wall (4), a third fireproof wall (5), a controllable normally-open fireproof door (7) and a second controllable normally-closed fireproof door (8).
4. The utility tunnel multi-fire zone ventilation system of claim 3, wherein: a blower fireproof valve (14) is arranged below the blower (9), and an exhaust fan fireproof valve (15) is arranged below the exhaust fan (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382467.5U CN209923973U (en) | 2019-03-25 | 2019-03-25 | Many fire prevention subregion ventilation system of utility tunnel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920382467.5U CN209923973U (en) | 2019-03-25 | 2019-03-25 | Many fire prevention subregion ventilation system of utility tunnel |
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| CN209923973U true CN209923973U (en) | 2020-01-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536646A (en) * | 2020-05-12 | 2020-08-14 | 中国市政工程西北设计研究院有限公司 | Air pipe-based comprehensive pipe gallery ventilation system and application method thereof |
| CN111549820A (en) * | 2020-05-27 | 2020-08-18 | 未来都市（苏州工业园区）规划建筑设计事务所有限公司 | Underground comprehensive pipe gallery system |
| CN111810212A (en) * | 2020-06-01 | 2020-10-23 | 上海市政工程设计研究总院（集团）有限公司 | Long-distance ventilation section of comprehensive pipe gallery and ventilation method thereof |
-
2019
- 2019-03-25 CN CN201920382467.5U patent/CN209923973U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536646A (en) * | 2020-05-12 | 2020-08-14 | 中国市政工程西北设计研究院有限公司 | Air pipe-based comprehensive pipe gallery ventilation system and application method thereof |
| CN111549820A (en) * | 2020-05-27 | 2020-08-18 | 未来都市（苏州工业园区）规划建筑设计事务所有限公司 | Underground comprehensive pipe gallery system |
| CN111810212A (en) * | 2020-06-01 | 2020-10-23 | 上海市政工程设计研究总院（集团）有限公司 | Long-distance ventilation section of comprehensive pipe gallery and ventilation method thereof |
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