CN110354420A - A kind of city cable tunnel fire hazard fire extinguishing system and application method - Google Patents
A kind of city cable tunnel fire hazard fire extinguishing system and application method Download PDFInfo
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- CN110354420A CN110354420A CN201910633714.9A CN201910633714A CN110354420A CN 110354420 A CN110354420 A CN 110354420A CN 201910633714 A CN201910633714 A CN 201910633714A CN 110354420 A CN110354420 A CN 110354420A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
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Abstract
The present invention relates to field of power system, disclosing a kind of city cable tunnel fire hazard fire extinguishing system and application method to improve the fire-fighting efficiency in cable tunnel fire prevention reduces fire extinguishing cost；System of the invention includes: to be set in cable tunnel by set distance, and for obtaining the location information that fire occurs, location information is sent to the Detection location module of center cell；For being filled with fire-suppressant gas into city cable tunnel in fire extinguishing procedure, it is also used to be filled with the fire extinguishing component of air into city cable tunnel after fire extinguishing is completed；And for receiving location information, fire extinguishing component fire extinguishing is controlled according to location information, and after the completion of fire extinguishing, control fire extinguishing component is filled with air into city cable tunnel to keep the center cell of the oxygen atmosphere in cable tunnel.
Description
Technical field
The present invention relates to field of power system more particularly to a kind of city cable tunnel fire hazard fire extinguishing system and application sides
Method.
Background technique
Cable is widely used in power generation, transmission of electricity, distribution links, because insulation ag(e)ing, overload, poor contact, external force are broken
Bad the problems such as, caused cable fire accounted for the 70~80% of transformer equipment fire, and very serious, society is lost caused by cable fire
It can negatively affect greatly, seriously affect operational safety and the people life property safety of electric system.In certain cable fire
In, 110 kilovolts of Wei Qu of certain electric power become 35 kilovolts of outlet cable ditches and catch fire, and cause 110 kilovolts of Wei Qu to become, 330 kilovolts of southern suburbs become mistake
Fire, 24.3 ten thousand kilowatts of breakdown loss load, 8.65 ten thousand family of customer interrupted, social influence is very big.Therefore, cable fire prevents and treats meaning
It is great.
Currently, common cable fire controlling mode mainly has reservoir pressure suspended type ultrafine dry powder device and fine mist fire-fighting system
Two kinds of system, still, which has the following problems: reservoir pressure suspended type ultrafine dry powder device belongs to a kind of distributed
Extinguishing method, after principle is that fire occurs, self-destruction starting occurs for reservoir pressure suspended type ultrafine dry powder device sensing to high temperature,
Using included pressed gas, ultra-fine dry powder is sprayed, plays extinguishing effect.Only due to each reservoir pressure suspended type ultrafine dry powder device
Can self-destruction it is primary, for protecting several square metres of cable tunnel, therefore, the shortcomings that this kind of fire-fighting mode, is that extinguishing property has very much
Limit, can not play the role of lasting fire extinguishing.Also, reservoir pressure suspended type ultrafine dry powder service life is shorter, and timing is needed to replace,
Human cost is higher.In addition, fine water mist fire-extinguishing system fire-fighting efficiency is higher, extinguishing effect is preferable, and service life is longer, but makes
Valence is high.In recent years, city cable tunnel is more and more, for several kilometers to tens kilometers of cable tunnel, if all installations
Fine water mist fire-extinguishing system, project cost will be very big, economically be difficult to receive.And the environment in buried cable tunnel is often more disliked
Bad, the long-term running maintenance cost of fine water mist fire-extinguishing system is higher.
Therefore, the fire-fighting efficiency in cable tunnel fire prevention how is solved, and reduces cost and urgently to be solved is asked as one
Topic.
Summary of the invention
It is an object of that present invention to provide a kind of city cable tunnel fire hazard fire extinguishing system and application methods, to improve cable tunnel
Fire-fighting efficiency in road fire prevention reduces fire extinguishing cost.
To achieve the above object, the present invention provides a kind of city cable tunnel fire hazard fire extinguishing systems, comprising:
Detection location module is set in cable tunnel by set distance, for obtaining the location information that fire occurs, by institute
It states location information and is sent to center cell；
Fire extinguishing component is also used to going out for being filled with fire-suppressant gas into the city cable tunnel in fire extinguishing procedure
Fire is filled with air into the city cable tunnel after completing；
Center cell, for receiving the location information, control fire extinguishing component fire extinguishing according to the positional information, and going out
After the completion of fire, control fire extinguishing component is filled with air into city cable tunnel to keep the oxygen atmosphere in cable tunnel.
Preferably, the fire fire extinguishing system further includes fire insulation system, and the fire insulation system is set to the cable tunnel
Two sides, for being isolated in fire in the setting section in tunnel.
Preferably, the fire fire extinguishing system further includes feed-through assembly, and the feed-through assembly includes for conveying fire smothering gas
The unidirectional fire extinction pipeline of body, for the fire extinguishing sprayer of ejecting extinguishing gas and for controlling the fire-suppressant gas one-way flow
Check valve；The fire extinguishing sprayer is installed at the pipeline opening of the single-phase fire extinction pipeline, and the check valve is set to described single-phase
On fire extinction pipeline and between the fire extinguishing sprayer and the single-phase fire extinction pipeline.
Preferably, the fire fire extinguishing system further includes monitoring modular, and the monitoring modular is used to monitor the oxygen in tunnel
Gas content information, and the oxygen content information is sent to the center cell, the center cell is also used to the oxygen
The oxygen content of Gas content information is compared with the oxygen content of setting, if the oxygen-containing of the oxygen content information is more than containing for setting
Oxygen amount, then it is assumed that the oxygen content in cable tunnel is sufficient.
Preferably, the detection principle of the Detection location module be linetype temperature-fixing fire detecting, thermojunction type fire detection,
One of infrared fire detection, ultraviolet fire detection, fiber grating fire detection or a variety of combinations.
Preferably, the fire insulation system is one of water mist system, water injection system, water curtain system or a variety of groups
It closes.
Preferably, the fire extinguishing component is mobile fire extinguishing component.
Preferably, the mobile fire extinguishing component includes extinction using gas module and air recovery system；
The fire-suppressant gas that the extinction using gas module uses includes high pressure nitrogen, high pressure IG541, high-pressure carbon dioxide, low
Press one of carbon dioxide, heptafluoro-propane and perfluor hexanone or a variety of combinations；
The air recovery system is the combination of one of air steel cylinder or air compressor or two kinds.
As a general technical idea, the present invention also provides a kind of applied to above-mentioned city cable tunnel fire hazard fire extinguishing
Systematic difference method, comprising the following steps:
Detection location module obtains the location information that fire occurs, and the location information is sent to center cell；
Center cell receives the location information, according to the positional information the fire extinguishing of control fire extinguishing component, when fire extinguishing is completed
Afterwards, control fire extinguishing component is filled with air into city cable tunnel to keep the oxygen atmosphere in cable tunnel.
Preferably, the fire fire extinguishing system further includes fire insulation system, and the method also includes following steps:
When starting fire extinguishing, the fire insulation system is opened, fire is isolated in the setting section in tunnel.
The invention has the following advantages:
The present invention provides a kind of city cable tunnel fire hazard fire extinguishing system and application method, by Detection location module and
When obtain fire location information, and fire location information is sent to center cell, center cell by control fire extinguishing component into
Row fire extinguishing, and after the completion of fire extinguishing, air is filled with into city cable tunnel to keep the oxygen atmosphere in cable tunnel, improved
Fire-fighting efficiency in cable tunnel fire prevention, reduces fire extinguishing cost, ensure that the peace of the environment after fire extinguishing in cable tunnel
Quan Xing.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the city cable tunnel fire hazard fire extinguishing system structural schematic diagram of the preferred embodiment of the present invention.
Detailed description of the invention:
1, Detection location module；2, fire insulation system；2-1, ground fire insulation pump；2-2, fire insulation pipeline；2-3, fire insulation spray head；3,
Unidirectional fire extinction pipeline；3-1, check valve；4, fire extinguishing sprayer；5, fire extinguishing component；5-1, extinction using gas module；5-2, air restorer
System；6, monitoring modular；7, center cell.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.The similar word of "one" or " one " etc. used in present patent application specification and claims does not indicate
Quantity limitation, but indicate that there are at least one.The similar word such as " connection " or " connected " be not limited to physics or
The connection of person's machinery, but may include electrical connection, it is either direct or indirect." two sides ", " outside " etc. are only
For indicating relative positional relationship, after the absolute position for being described object changes, then the relative positional relationship also correspondingly changes
Become.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of city cable tunnel fire hazard fire extinguishing systems, comprising:
Detection location module 1 is set in cable tunnel by set distance, will for obtaining the location information that fire occurs
Location information is sent to center cell；
Fire extinguishing component 5 is also used to putting out a fire for being filled with fire-suppressant gas into city cable tunnel in fire extinguishing procedure
At being filled with air in backward city cable tunnel；
Center cell 7 controls fire extinguishing component fire extinguishing according to location information, and complete in fire extinguishing for receiving location information
Afterwards, control fire extinguishing component is filled with air into city cable tunnel to keep the oxygen atmosphere in cable tunnel.
Above-mentioned city cable tunnel fire hazard fire extinguishing system, obtains fire location information by Detection location module in time,
And fire location information is sent to center cell, center cell is put out a fire by control fire extinguishing component, and is completed in fire extinguishing
Afterwards, air is filled with into city cable tunnel to keep the oxygen atmosphere in cable tunnel, improved in cable tunnel fire prevention
Fire-fighting efficiency reduces fire extinguishing cost, ensure that the safety of the environment after putting out a fire in cable tunnel.
As the present embodiment preferred embodiment, fire fire extinguishing system further includes fire insulation system 2, and fire insulation system is set to electricity
The two sides in cable tunnel, for being isolated in fire in the setting section in tunnel.By fire insulation system, fire can be efficiently controlled
Spreading range, avoid fire to adjacent tunnel spread, prevent bigger injury.In the present embodiment, between fire insulation system
Distance be 5-20 meter, the protection width of each fire insulation system is 10 meters.Specifically, fire insulation system include ground fire insulation pump 2-1,
Fire insulation pipeline 2-2 and fire insulation spray head 2-3.
As the present embodiment preferred embodiment, fire fire extinguishing system further includes feed-through assembly, and feed-through assembly includes using
In the unidirectional fire extinction pipeline 3 of conveying fire-suppressant gas, for the fire extinguishing sprayer 4 of ejecting extinguishing gas and for controlling fire smothering gas
The check valve 3-1 of body one-way flow；Fire extinguishing sprayer is installed at the pipeline opening of single-phase fire extinction pipeline, and check valve is set to single-phase fire extinguishing
On pipeline and between fire extinguishing sprayer and single-phase fire extinction pipeline.Wherein, check valve can prevent fire-suppressant gas from flowing backwards.As variable
The embodiment changed, fire extinguishing sprayer can be to be multiple, and clipping room of each fire extinguishing sprayer on unidirectional fire extinction pipeline is away from for 2-5
Rice, it is ensured that the best extinguishing effect of extinguishing chemical.For tunnel inner sealing and narrow operating environment, by the way that the conducting is arranged
Component more flexible can put out a fire in cable tunnel.
In the present embodiment, fire fire extinguishing system further includes monitoring modular 6, and the oxygen that monitoring modular is used to monitor in tunnel contains
Measure information, and oxygen content information be sent to center cell, center cell be also used to by the oxygen content of oxygen content information with
The oxygen content of setting is compared, if the oxygen-containing of oxygen content information is more than the oxygen content set, then it is assumed that in cable tunnel
Oxygen content is sufficient.
In preferably, the detection principle of Detection location module is linetype temperature-fixing fire detecting, thermojunction type fire detection, red
One of outer fire detection, ultraviolet fire detection, fiber grating fire detection or a variety of combinations.
Preferably, fire insulation system is one of water mist system, water injection system, water curtain system or a variety of combinations.
It should be noted that when fire insulation system is the combination of above-mentioned several systems, using one of system as master control system, in addition
System be auxiliary system, multiple isolation can be played the role of, ensure that the stability and robustness of system.
Preferably, fire extinguishing component is mobile fire extinguishing component.Using putting out a fire mobilely, component can control for greater flexibility
Fire extinguishing component is put out a fire in different cable tunnels, not by the restriction effect of position, keeps the applicability of fire extinguishing component wider.This
In embodiment, movable type fire extinguishing component includes extinction using gas module 5-1 and air recovery system 5-2；Wherein, extinction using gas module
The fire-suppressant gas of use include high pressure nitrogen, high pressure IG541, high-pressure carbon dioxide, low pressure CO 2, heptafluoro-propane and
One of perfluor hexanone or a variety of combinations；But the present invention limits not to this, can have the function that identical fire extinguishing
Under, the fire-suppressant gas that extinction using gas module uses can also be other kinds of inert gas.In addition, in the present embodiment, air
Recovery system is the combination of one of air steel cylinder or air compressor or two kinds.It should be noted that when air is extensive
When complex system uses two kinds of the combination, it is appropriate to be quickly filled with into cable tunnel that the rwo meets a main auxiliary relationship
Oxygen.
Embodiment 2
The present embodiment provides a kind of application methods applied to above-mentioned city cable tunnel fire hazard fire extinguishing system, specifically include
Following steps:
Detection location module obtains the location information that fire occurs, and location information is sent to center cell；
Center cell receives location information, controls fire extinguishing component fire extinguishing according to location information, after the completion of fire extinguishing, control is gone out
Fiery component is filled with air into city cable tunnel to keep the oxygen atmosphere in cable tunnel.
It is high not need the installation price in cable tunnel for the application method of above-mentioned city cable tunnel fire hazard fire extinguishing system
Expensive fire extinguishing system can be greatly decreased cable tunnel fire prevention expense and fire control personnel, improve fire protection efficiency and timeliness.
And after the completion of fire extinguishing, air is sprayed into cable tunnel, can oxygen content in fast quick-recovery tunnel, and effectively detect oxygen
Gas content guarantees the personal safety of lower tunnel personnel, the final fire safety problem for solving city cable tunnel fire hazard.
It should be noted that above-mentioned fire fire extinguishing system further includes fire insulation system, then this method is further comprising the steps of:
When starting fire extinguishing, fire insulation system is opened, fire is isolated in the setting section in tunnel.It, will in the present embodiment
The working time of fire insulation system is set as 3 hours, guarantees in fire extinguishing procedure, and fire insulation system is in working condition.But the present invention is simultaneously
It is not limited only to this, the working time of fire insulation system, such as 2-4 hours can also be adjusted in a certain range.
As disposable embodiment, when being put out a fire, it is fiery to occurring fire extinguishing component can be controlled by staff
The cable tunnel ejecting extinguishing gas of calamity is put out a fire, and is directed to and is comparatively closed narrow fire extinguishing environment in cable tunnel,
The fire-suppressant gas for component injection of putting out a fire can be delivered to corresponding fire location by feed-through assembly by staff.Specifically, may be used
Air steel cylinder is connected to unidirectional fire extinction pipeline, air steel cylinder ejecting extinguishing gas into unidirectional fire extinction pipeline, by unidirectionally putting out a fire
Pipeline is realized by fire extinguishing sprayer ejecting extinguishing gas and is put out a fire to corresponding fire section.As disposable embodiment party
Formula can also set the component for automatically turning on or closing under the control of center cell for component of putting out a fire, realize self-extinguishing.
When using this kind of mode, fire extinguishing component is set at cable tunnel in advance, being convenient in the case of fire can be in time and quick
Unlatching fire extinguishing.
Further, after the completion of fire extinguishing, air is sprayed into cable tunnel, opens the monitoring device real-time monitoring cable
The oxygen content of the oxygen content information is compared by the oxygen content information in tunnel, center cell with the oxygen content of setting,
If the oxygen-containing of oxygen content information is more than the oxygen content set, then it is assumed that the oxygen content in cable tunnel is sufficient.The open electricity
There is the passage of pedestrian in cable tunnel.
Specifically, by taking certain city as an example, 4 city cable tunnel fire hazard centre of prevention and cures are uniformly arranged in the city, each
Fire centre of prevention and cure corresponds to a center cell, and each fire centre of prevention and cure arranges at least 2 storage devices, and monitoring in 24 hours should
The cable tunnel Fires Occurred in city.The distribution standard of city cable tunnel fire hazard centre of prevention and cure are as follows: any in city
The range of driving of the cable tunnel from nearest city cable tunnel fire hazard centre of prevention and cure is no more than 1 hour at one, guarantees cable tunnel
Instant quick extinguishing after fire generation.A fire fire extinguishing system is placed in each fire centre of prevention and cure.
By taking certain length is 10 kilometers of cable tunnel as an example, the cable tunnel in the city is divided into 10 sections, every section
It is 1 kilometer.Fire insulation system is set between adjacent sections, fire locating alarm system, unidirectional fire extinction pipeline are installed in each section
System, extinction using gas spray head.
After fire occurs, the section that fire occurs is obtained using locating alarm device, after section occurs for confirmation fire, automatically
The fire-isolation apparatus that section both ends occur for the fire is opened, makes fire control between certain fire section, prevents fire spread.
After center cell is connected to alarm of fire, controls unidirectional fire extinction pipeline of the storage device into fire section and be filled with fire extinguishing
Gas is quickly stamped out a fire by one-way sprayer ejecting extinguishing gas.
After the completion of fire extinguishing, center cell continues control storage device and is filled with air, monitoring dress to the fire section after fire extinguishing
The oxygen content information in real-time monitoring tunnel is set, and oxygen content information is sent to center cell, when the oxygen in tunnel
After content reaches safety value, ability permission personnel enter tunnel, it is ensured that into the personal safety of tunnel personnel.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of city cable tunnel fire hazard fire extinguishing system characterized by comprising
Detection location module is set in cable tunnel by set distance, for obtaining the location information that fire occurs, by institute's rheme
Confidence breath is sent to center cell；
Fire extinguishing component is also used to putting out a fire for being filled with fire-suppressant gas into the city cable tunnel in fire extinguishing procedure
At being filled with air in the backward city cable tunnel；
Center cell, for receiving the location information, control fire extinguishing component fire extinguishing according to the positional information, and putting out a fire
Cheng Hou, control fire extinguishing component are filled with air into city cable tunnel to keep the oxygen atmosphere in cable tunnel.
2. city cable tunnel fire hazard fire extinguishing system according to claim 1, which is characterized in that the fire fire extinguishing system
It further include fire insulation system, the fire insulation system is set to the two sides of the cable tunnel, for fire to be isolated in the setting in tunnel
In section.
3. city cable tunnel fire hazard fire extinguishing system according to claim 2, which is characterized in that the fire fire extinguishing system
It further include feed-through assembly, the feed-through assembly includes for conveying the unidirectional fire extinction pipeline of fire-suppressant gas, for ejecting extinguishing gas
The fire extinguishing sprayer of body and check valve for controlling the fire-suppressant gas one-way flow；The fire extinguishing sprayer is installed on described
At the pipeline opening of single-phase fire extinction pipeline, the check valve is set on the single-phase fire extinction pipeline and is located at the fire extinguishing sprayer and institute
It states between single-phase fire extinction pipeline.
4. city cable tunnel fire hazard fire extinguishing system according to claim 1 to 3, which is characterized in that the fire goes out
Fiery system further includes monitoring modular, and the monitoring modular is used to monitor the oxygen content information in tunnel, and the oxygen is contained
Amount information is sent to the center cell, and the center cell is also used to the oxygen content of the oxygen content information and setting
Oxygen content is compared, if the oxygen-containing of the oxygen content information is more than the oxygen content set, then it is assumed that the oxygen in cable tunnel
Gas content is sufficient.
5. city cable tunnel fire hazard fire extinguishing system according to claim 1, which is characterized in that the Detection location module
Detection principle be linetype temperature-fixing fire detecting, thermojunction type fire detection, infrared fire detection, ultraviolet fire detection, optical fiber
One of grating fire detection or a variety of combinations.
6. city cable tunnel fire hazard fire extinguishing system according to claim 2, which is characterized in that the fire insulation system is thin
One of spraying system, water injection system, water curtain system or a variety of combinations.
7. city cable tunnel fire hazard fire extinguishing system according to claim 1, which is characterized in that the fire extinguishing component is to move
Dynamic formula fire extinguishing component.
8. city cable tunnel fire hazard fire extinguishing system according to claim 7, which is characterized in that the movable type fire extinguishing group
Part includes extinction using gas module and air recovery system；
The fire-suppressant gas that the extinction using gas module uses includes high pressure nitrogen, high pressure IG541, high-pressure carbon dioxide, low pressure two
One of carbonoxide, heptafluoro-propane and perfluor hexanone or a variety of combinations；
The air recovery system is the combination of one of air steel cylinder or air compressor or two kinds.
9. a kind of application method applied to any city cable tunnel fire hazard fire extinguishing system of claim 1-8, special
Sign is, comprising the following steps:
Detection location module obtains the location information that fire occurs, and the location information is sent to center cell；
Center cell receives the location information, according to the positional information the fire extinguishing of control fire extinguishing component, after the completion of fire extinguishing, control
System fire extinguishing component is filled with air into city cable tunnel to keep the oxygen atmosphere in cable tunnel.
10. application method according to claim 9, which is characterized in that the fire fire extinguishing system further includes fire insulation system,
The method also includes following steps:
When starting fire extinguishing, the fire insulation system is opened, fire is isolated in the setting section in tunnel.
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| CN201910633714.9A CN110354420A (en) | 2019-07-15 | 2019-07-15 | A kind of city cable tunnel fire hazard fire extinguishing system and application method |
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| CN111388933A (en) * | 2020-03-25 | 2020-07-10 | 国网湖南省电力有限公司 | Fire extinguishing agent for cable tunnel fire, fire extinguishing system and fire extinguishing method |
| CN112717304A (en) * | 2020-12-08 | 2021-04-30 | 国网河北省电力有限公司电力科学研究院 | Cable pit liquid nitrogen vehicle system of putting out a fire |
| CN113769292A (en) * | 2021-08-16 | 2021-12-10 | 国家电网有限公司 | Urban pipe gallery gas fire-fighting and gas purification pipe network system and implementation method thereof |
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Application publication date: 20191022 |