CN110624193B - Fire control method for preventing afterburning based on Internet of things - Google Patents
Fire control method for preventing afterburning based on Internet of things Download PDFInfo
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- CN110624193B CN110624193B CN201910637521.0A CN201910637521A CN110624193B CN 110624193 B CN110624193 B CN 110624193B CN 201910637521 A CN201910637521 A CN 201910637521A CN 110624193 B CN110624193 B CN 110624193B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
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Abstract
The invention discloses a fire control method for preventing re-ignition based on the Internet of things.A controller controls a spray head to carry out fire extinguishing operation, a measuring instrument measures fire scene information, after a certain fire point receives the operation of a fire extinguishing spray head, whether the combustible material is re-ignited or not is judged, and the re-ignition point and an adjusting spray head are defined according to the judgment result to carry out fire extinguishing operation on the fire point; when the combustibles of all the fire points are extinguished, the adjusting and collecting spray head carries out the re-burning prevention operation on all the fire points. The invention provides a fire control method for preventing reignition based on the Internet of things, which is used for performing reignition prevention operation on each fire point after the fire point is extinguished and enhancing the intensity of fire extinguishing operation on the situation that one fire point cannot be extinguished for a long time.
Description
Technical Field
The invention relates to the field of fire fighting, in particular to a control method for preventing afterburning.
Background
At present, fire-fighting nozzles used in buildings mostly spray fire extinguishing agents when a fire disaster occurs, but cannot judge whether fire spots are extinguished, and cannot concentrate the fire to extinguish the fire spots which cannot be extinguished all the time. The invention discloses a deflagration and re-combustion linked fire extinguishing device of a large-scale protective body, which is called as a Chinese patent publication No. CN207041783U on publication No. 2018 on 27.02.8.27.A linkage control cabinet is connected with a plurality of controllers, each controller is connected with a dry powder storage device, the dry powder storage devices are jointly connected with a shunt pipe, the shunt pipe is connected with a plurality of selector valves, each selector valve is connected with a nozzle group, and the linkage control cabinet is also connected with a plurality of fire alarm sensing components. The fire source location is carried out, the conflagration is put out, the fire is put out again, but still can not be at the in-process of putting out a fire to the condition of a fire real time monitoring, the shower nozzle that the condition of a fire that has already been put out corresponds is distributed to the operation of putting out a fire of the condition of a fire that has not yet been put out, do not carry out the operation of preventing reigniting to the condition of a fire that puts out after putting out the condition of a fire, only wait the condition of a fire takes place once more and just begin to put out a fire, the fire will cause irreversible damage to article as long as begin to burn, do not accomplish distinguished enhancement to the condition of a fire that takes place rei.
Disclosure of Invention
The invention aims to solve the problems that fire points are easy to reignite after being extinguished and a fire point cannot be extinguished for a long time in the prior art, and the fire extinguishing strength cannot be enhanced, and provides a reignition prevention fire control method based on the Internet of things, which is used for performing reignition prevention operation on each fire point after the fire point is extinguished and enhancing the fire extinguishing strength of a fire point which cannot be extinguished for a long time.
In order to achieve the purpose, the invention adopts the following technical scheme:
the technical scheme adopted by the invention for solving the technical problems is as follows: a fire control method for preventing afterburning based on the Internet of things is characterized in that a controller controls a spray head to control fire operation, and the control process comprises the following steps:
s1, the measuring instrument acquires fire scene information;
s2, judging whether the fire is reignited or not, and defining the reignition point and a collecting nozzle to extinguish the fire according to the judgment result;
and S3, when the combustibles of all the fire points are extinguished, the adjusting and collecting spray head performs the re-burning prevention operation on all the fire points. After judging whether the combustible material reignites, can be according to the judgement condition, stop the shower nozzle to this condition of a fire operation of putting out a fire, this shower nozzle just can add in the operation of putting out a fire of other condition of a fire point like this, perhaps strengthen the operation of putting out a fire to this condition of a fire point, make and reach a better fire extinguishing effect, all condition of a fire point are all suppressed after to all condition of a fire point prevent the operation of reigniting a fire, can prevent the condition of a fire point reigniting, if wait the condition of a fire point reignite, go to put out a fire operation again, will cause irreversible loss.
Preferably, in step S1: the measuring instrument acquires fire scene information which comprises the distance between each spray head and each fire point in the coverage range of the spray head, the volume of combustible materials at the fire points, the existence of flame at the fire points and the highest intensity of infrared rays emitted by the combustible materials at the fire points, and the information is stored.
Preferably, the step of S2 includes the steps of:
s2.1: starting timing of re-ignition judgment on the fire point;
s2.2: carrying out re-ignition judgment on the fire point;
s2.3: if the volume of the fire point exceeds a set threshold value, the priority of the fire point is increased by one level;
s2.4: operating the re-ignition point pilot adjusting spray head;
s2.5: and transmitting the real-time data and the historical data of whether each fire point is judged to be the reignition point to the terminal equipment. The fire point defined as the reignition point can be adjusted to other spray heads to enhance the operation of the spray head, so that the reignition point can quickly obtain high-intensity fire extinguishing operation, the infrared radiation intensity of some combustibles is not high, the reignition possibility of the combustibles is increased if the volume of the combustibles is large enough, and therefore the priority of the fire point corresponding to the combustibles is increased. After the real-time data and the historical data of whether the fire condition points are judged to be reignition points are transmitted to the terminal equipment, fire fighters can select fire fields which have more reignition points and can not be extinguished frequently according to the characteristics to perform priority treatment.
Preferably, in the step S2.1: and starting timing after the fire point receives the fire extinguishing operation of a certain spray head, starting judging whether to reignite after the timing time exceeds the set time, and restarting timing if another spray head is added into the fire extinguishing operation of the fire point when the timing is started. If a nozzle is added into the fire extinguishing operation in the fire extinguishing process, the fire extinguishing intensity of the fire point is enhanced, so whether the fire point can be extinguished under the fire extinguishing intensity can be accurately judged by taking the adding time of the last nozzle added with the fire extinguishing as a timing starting point, whether the fire point needs to be defined as a reignition point or not is judged, if the adding time of the last nozzle added with the fire extinguishing is not taken as the timing starting point, the fire extinguishing intensity of the fire point before the nozzle is added with the fire extinguishing is insufficient, the intensity after the nozzle is added is just enough, the fire can be extinguished only in a period of time, but because the adding time of the last nozzle added with the fire extinguishing is not taken as the timing starting point, when the fire is judged, the combustible is not extinguished, but the fire extinguishing intensity is enough at the moment, so that the service time of the fire extinguishing nozzle is prolonged, the fire extinguishing operation cannot be extracted from the fire extinguishing operation at the fire point at an early stage, and the fire extinguishing operation at another fire point is supported.
Preferably, in the step S2.2: after judging whether the fire point is reignited or not, if the combustible is not extinguished, adjusting the spray head to carry out fire extinguishing operation on the fire point and defining the fire point as a reignition point; if the combustible matter is extinguished, the spray head is stopped to carry out fire extinguishing operation on the fire point, and the fire point defined as the reignition point is classified according to the intensity of infrared rays emitted by the combustible matter at the fire point. If the fire at the reignition point is classified, the fire extinguishing operation can be performed on the fire at the high priority, and the fire at the high priority has high danger, so that the probability of loss can be reduced by performing the fire extinguishing operation on the fire at the high priority.
Preferably, in the step S2.4: and if one of the nozzles is required to be regulated, the re-ignition point with high priority and the re-ignition point with low priority are preferably regulated, and the shape of the nozzle and the turning position of the nozzle are controlled by the regulated nozzle through a controller, so that the fire extinguishing agent sprayed by the nozzle can be sprayed onto the combustible substances of the re-ignition point. The fire point with high priority needs to be supported by the best fire extinguishing intensity, so that the control of the whole fire is most beneficial, when the fire extinguishing operation is carried out on the fire point with high priority, not only the spray head which originally extinguishes the fire point needs to participate in the fire extinguishing operation of the reignition point, but also all the non-working spray heads which can cover the reignition point need to participate in the fire extinguishing operation of the reignition point.
Preferably, in the step S3: after the combustible substances of all the fire points are extinguished, the controller orderly collects the situation that whether the re-ignition is judged according to each re-ignition point when the spray heads near the re-ignition point perform the re-ignition prevention operation. The spray head is continuously adjusted to carry out re-combustion prevention operation on the combustible after the combustible is extinguished so as to prevent the fire point from re-combusting again and avoid the problem of fire extinguishing after re-combustion, once the fire point re-combusts, irreversible loss can be caused, the spray head closest to the fire point can be adjusted, so that the fire extinguishing agent can reach the fire point more quickly, and the fire extinguishing agent is more uniformly dispersed when reaching the fire point.
Preferably, the process of sequentially collecting the nearby nozzles in step S3 is as follows: if two or more fire points need to be gathered by the same spray head for the re-ignition prevention operation, the spray head carries out the re-ignition prevention operation on the fire points in a clockwise sequence, when the re-ignition prevention operation is carried out, the shape of the spray head and the steering position of the spray head are controlled by the controller, so that the fire extinguishing agent sprayed by the spray head can be sprayed onto the combustible substances of the re-ignition points, and when the re-ignition prevention operation is carried out on the fire points in sequence, the spray head finishes the re-ignition prevention operation of one fire point and does not stop spraying the fire extinguishing agent when the fire extinguishing agent is required to be steered to the next fire point. The nozzles carry out the re-ignition preventing operation on the fire points in a clockwise sequence, so that the fire points can all receive the re-ignition preventing operation of the nearest nozzle, if the re-ignition preventing operation of one fire point is finished, the fire extinguishing agent stops being sprayed, then the next fire point is started to spray the fire extinguishing agent, so that the time is wasted, the time can be saved by not stopping spraying the fire extinguishing agent when the nozzles finish the re-ignition preventing operation of one fire point and need to turn to the next fire point, and two completely different results can be obtained in one second of fire rescue.
Preferably, in the step S3, when the re-ignition preventing operation is performed on the re-ignition point, the more the determination of whether or not the re-ignition point has passed, the longer the re-ignition preventing operation time of the single shower head with respect to the fire point. The more the determination of whether to reignite, the more the fire is hard, the more attention should be paid to the reignition prevention operation, so that the time of the reignition prevention operation is prolonged.
Therefore, the invention has the following beneficial effects: (1) after the fire points are extinguished, carrying out re-ignition prevention operation on each fire point; (2) the fire extinguishing is enhanced to a fire point which can not be extinguished for a long time; (3) the fire point information can be transmitted out to be used as a reference for rescue of firefighters; (4) after all the fire points are extinguished, the reignition prevention operation is carried out on each fire point.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention
FIG. 2 is a schematic diagram of the distribution of the fire and the nozzle of the present invention
In the figure: 1. controller, 2, shower nozzle, 3, measuring apparatu.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Example (b): a fire control method for preventing re-combustion based on the Internet of things judges whether a fire point is still burning or not after the fire point receives fire extinguishing operation of a nozzle, after judgment, the extinguished nozzle does not need to be subjected to fire extinguishing operation, the nozzle subjected to the fire point operation can be added into operation of other fire points, and the fire point which is not extinguished is subjected to fire extinguishing operation on the other nozzles according to the priority of the fire point. If all the fire points are extinguished, the spray head is moved to each fire point to perform the re-ignition prevention operation.
The following is further illustrated with reference to specific examples:
the distance between each spray nozzle and each fire point in the coverage range is collected through a measuring instrument, the distance between the spray nozzle 1 and the first-level fire point is 1.9 meters, the distance between the spray nozzle 2 and the first-level fire point is 2 meters, the distance between the spray nozzle 3 and the first-level fire point is 3 meters, the distance between the spray nozzle 3 and the third-level fire point is 1.5 meters, the distance between the spray nozzle 4 and the second-level fire point is 1.8 meters, and the distance between the spray nozzle 4 and the third-level fire point is 2 meters. No. 1 shower nozzle and No. 2 shower nozzle put out a fire the operation to one-level condition of a fire point, No. 3 shower nozzles put out a fire the operation to second grade condition of a fire point, No. 4 shower nozzles put out a fire the operation to tertiary condition of a fire point, each shower nozzle is put out a fire the operation and is all gone on by each shower nozzle of singlechip PIC17C43 control, singlechip PIC17C43 control shower nozzle is according to the spout shape of the distance adjustment between shower nozzle and the condition of a fire point, make shower nozzle spun fire extinguishing agent can cover the condition of a fire point completely, if the condition of a fire area has reached the coverage area upper limit of shower nozzle, that shower nozzle just sprays extinguishing agent to the condition of a fire point according to the biggest coverage area, singlechip 17C43 is still controlled the shower nozzle rotatory and every single move, make the shower nozzle towards the condition of a fire point, and upwards or next angle, the existence of this angle can make extinguishing agent can let the condition of a fire point.
No. 1, No. 4 and No. 3 shower nozzle simultaneously respectively to one-level condition of a fire point, second grade condition of a fire point and tertiary condition of a fire point operation of putting out a fire, singlechip PIC17C43 just begins to count time one-level condition of a fire point, second grade condition of a fire point and tertiary condition of a fire point respectively, No. 2 shower nozzle is later than No. 1 shower nozzle and carries out the operation of putting out a fire to one-level condition of a fire point, because singlechip PIC17C43 has not reached the settlement time to the timing of one-level condition of a fire point yet this moment, singlechip PIC17C43 clears the timing of one-level condition of a fire point, and. The singlechip PIC17C43 times the first-level fire and the second-level fire to the set time, the 3 # nozzle and the 4 # nozzle stop the fire extinguishing operation, the measuring instrument detects that the second-level fire is not extinguished, the third-level fire is extinguished, because the nozzle covering the second-level fire is only the 4 # nozzle, the singlechip PIC17C43 sets the 4 # nozzle to extinguish the second-level fire, defines the second-level fire as the second-level re-ignition point, and starts to time the second-level re-ignition point. After the timing of the first-level fire point of the single-chip microcomputer PIC17C43 reaches the set time, the No. 1 spray head and the No. 2 spray head stop the fire extinguishing operation, the measuring instrument detects that the first-level fire is not extinguished, because the fire extinguishing range covers the No. 1 spray head, the No. 2 spray head and the No. 3 spray head of the first-level fire point, the single-chip microcomputer PIC17C43 collects the No. 1 spray head, the No. 2 spray head and the No. 3 spray head to extinguish the first-level fire point, the first-level fire point is defined as a first-level re-ignition point, because the combustible volume of the first-level re-ignition point exceeds 2 cubic meters, the fire level is improved for the first-level re-ignition point, and because the first-level re-ignition point is already the highest level and cannot be improved. After the singlechip PIC17C43 times the second-stage reignition point to the set time, the measuring instrument detects that the second-stage reignition point is extinguished, the No. 4 spray head stops the fire extinguishing operation, and after the singlechip PIC17C43 times the first-stage reignition point to the set time, the measuring instrument detects that the first-stage reignition point is extinguished, and the No. 1 spray head, the No. 2 spray head and the No. 3 spray head stop the fire extinguishing operation.
After all the combustibles at the secondary combustion points are extinguished, the secondary combustion prevention operation is started, the spray head No. 1 performs the secondary combustion prevention operation for 30 seconds at the interval of 2 minutes for the first-level fire points, the spray head No. 3 performs the secondary combustion prevention operation for 15 seconds at the interval of 2 minutes for the third-level fire points, and the spray head No. 4 performs the secondary combustion prevention operation for 30 seconds at the interval of 2 minutes for the second-level fire points. When the anti-backfire operation, singlechip PIC17C43 control shower nozzle is according to the distance adjustment spout shape between shower nozzle and the condition of a fire point for the fire extinguishing agent of shower nozzle spun can cover the condition of a fire point completely, if the condition of a fire point area has reached the coverage area upper limit of shower nozzle, that shower nozzle just sprays the fire extinguishing agent to the condition of a fire point according to the biggest coverage area, singlechip PIC17C43 still controls the shower nozzle rotatory and every single move, make the shower nozzle towards the condition of a fire point, and upwards or next angle, the existence of this angle can make the fire extinguishing agent can let the condition of a fire point cover the fire extinguishing agent to the effect of antigravity.
If the No. 4 spray head is the spray head closest to the second-level fire point and the third-level fire point, the No. 4 spray head firstly carries out the re-combustion prevention operation on the second-level fire point, and after the re-combustion prevention operation is finished, the spray head does not stop spraying the fire extinguishing agent, and the singlechip controls the direction change, adjusts the position and the shape of the spray opening and carries out the re-combustion prevention operation on the third-level fire point according to the clockwise rotation.
Claims (7)
1. A fire control method for preventing afterburning based on the Internet of things is characterized in that a controller (1) controls a spray head (2) to control fire operation according to fire scene data measured by a measuring instrument (3), and the control process comprises the following steps:
s1, the measuring instrument acquires fire scene information;
s2, judging whether the fire is reignited or not, and defining the reignition point and a collecting nozzle to extinguish the fire according to the judgment result;
s3, when the combustibles of all the fire points are extinguished, the adjusting and collecting spray head carries out the re-ignition prevention operation on all the fire points; in the step S3: after the combustible substances of all fire points are extinguished, when the controller orderly collects the nozzles nearby to each reignition point to perform the reignition prevention operation, the controller needs to judge whether to reignite according to each reignition point, and the process of orderly collecting the nozzles nearby is as follows: if two or more fire points need to be gathered by the same spray head for the re-ignition prevention operation, the spray head carries out the re-ignition prevention operation on the fire points in a clockwise sequence, when the re-ignition prevention operation is carried out, the shape of the spray head and the steering position of the spray head are controlled by the controller, so that the fire extinguishing agent sprayed by the spray head can be sprayed onto the combustible substances of the re-ignition points, and when the re-ignition prevention operation is carried out on the fire points in sequence, the spray head finishes the re-ignition prevention operation of one fire point and does not stop spraying the fire extinguishing agent when the fire extinguishing agent is required to be steered to the next fire point.
2. The internet of things-based fire control method for preventing afterburning as claimed in claim 1, wherein the step S1 is as follows: the measuring instrument acquires fire scene information which comprises the distance between each spray head and each fire point in the coverage range of the spray head, the volume of combustible materials at the fire points, the existence of flame at the fire points and the highest intensity of infrared rays emitted by the combustible materials at the fire points, and the information is stored.
3. The internet of things-based fire control method for preventing afterburning according to claim 1, wherein the step S2 comprises the steps of:
s2.1: starting timing of re-ignition judgment on the fire point;
s2.2: carrying out re-ignition judgment on the fire point;
s2.3: if the volume of the fire point exceeds a set threshold value, the priority of the fire point is increased by one level;
s2.4: operating the re-ignition point pilot adjusting spray head;
s2.5: and transmitting the real-time data and the historical data of whether each fire point is judged to be the reignition point to the terminal equipment.
4. The Internet of things-based fire control method for preventing afterburning according to claim 3, wherein in the step S2.1: and starting timing after the fire point receives the fire extinguishing operation of a certain spray head, starting judging whether to reignite after the timing time exceeds the set time, and restarting timing if another spray head is added into the fire extinguishing operation of the fire point when the timing is started.
5. The Internet of things-based fire control method for preventing afterburning according to claim 3, wherein in the step S2.2: after judging whether the fire point is reignited or not, if the combustible is not extinguished, adjusting the spray head to carry out fire extinguishing operation on the fire point and defining the fire point as a reignition point; if the combustible matter is extinguished, the spray head is stopped to carry out fire extinguishing operation on the fire point, and the fire point defined as the reignition point is classified according to the intensity of infrared rays emitted by the combustible matter at the fire point.
6. The Internet of things-based fire control method for preventing afterburning according to claim 3, wherein in the S2.4 step: and if one of the nozzles is required to be regulated, the re-ignition point with high priority and the re-ignition point with low priority are preferably regulated, and the shape of the nozzle and the turning position of the nozzle are controlled by the regulated nozzle through a controller, so that the fire extinguishing agent sprayed by the nozzle can be sprayed onto the combustible substances of the re-ignition point.
7. The internet-of-things-based fire control method for preventing reignition according to claim 1, wherein in the step S3, when the reignition point is subjected to the reignition prevention operation, if the more the reignition point is determined to be reignited, the longer the reignition prevention operation time of the single nozzle to the fire point.
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| CN201910637521.0A CN110624193B (en) | 2019-07-15 | 2019-07-15 | Fire control method for preventing afterburning based on Internet of things |
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| CN110624193B true CN110624193B (en) | 2021-03-19 |
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| CN113648578B (en) * | 2020-12-26 | 2022-06-07 | 河南良大空间消防科技有限公司 | Water cannon mutual-aid fire extinguishing method for outer wall of high-rise building group |
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| JP3915046B2 (en) * | 1998-03-31 | 2007-05-16 | 能美防災株式会社 | Fire extinguishing robot equipment |
| CN103480115B (en) * | 2013-09-27 | 2016-06-15 | 泰康消防化工集团股份有限公司 | A kind of wet method phosphorus slag forest powder extinguishing agent and preparation method thereof |
| CN105233454A (en) * | 2015-08-28 | 2016-01-13 | 杨源泉 | Intelligent fire fighting sprinkler and fire extinction method thereof |
| CN106422129A (en) * | 2016-11-02 | 2017-02-22 | 中国矿业大学 | Fire-fighting monitor fire extinguishment effect automatic monitoring and reburning prevention system and method |
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