CN111346318B

CN111346318B - Polyurethane foaming surrounding and blocking self-extinguishing method for forest fire

Info

Publication number: CN111346318B
Application number: CN202010131179.XA
Authority: CN
Inventors: 郭骏; 陆恒平; 周家峰; 赵永庆; 问林先; 周鹏飞; 李宏; 黄朝文
Original assignee: Yangzhou Pipe Fitting Factory Co ltd
Current assignee: Yangzhou Pipe Fitting Factory Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2021-10-12
Anticipated expiration: 2040-02-28
Also published as: CN111346318A

Abstract

The invention discloses a polyurethane foaming surrounding and blocking self-extinguishing method for forest fire, which comprises the following steps: step S1: selecting a polyurethane foaming material; step S2: constructing a forest fire containment area, and dividing the forest fire containment area into a forest combustion area, an unburned forest spacer area and a polyurethane foaming containment area; step S3: the polyurethane foaming material in the step S1 is sprayed inside the polyurethane foaming enclosing area for enclosing, and the technical problems that the forest fire is not treated quickly enough and the fire area is easy to expand in the prior art are solved.

Description

Polyurethane foaming surrounding and blocking self-extinguishing method for forest fire

Technical Field

The invention relates to the technical field of fire prevention and control, in particular to a polyurethane foam surrounding and blocking self-extinguishing method for forest fire.

Background

A large amount of forest fires occur every year in the world, especially global warming, the fire happens more and more frequently, some forest fires can burn for more than 3 months, although a large amount of manpower and material resources are used, the effect is very limited, the traditional fire extinguishing method, such as a fire extinguishing gun, a helicopter is obviously not suitable for the forest fires, because the forest fires are far away from the city, the transportation and the quantity of water sources and fire fighting equipment cannot rapidly extinguish the forest fires with large area and rapid burning speed, the traditional forest fire prevention and fire fighting means are out of date, and if a brand new mode is not adopted, the human can only restrain hands to be killed before the larger and larger forest fires.

Disclosure of Invention

The embodiment of the application aims to provide a polyurethane foaming surrounding and blocking self-extinguishing method for forest fires, and the technical problems that the forest fires are not processed quickly enough and the fire area is easy to expand in the prior art are solved.

A polyurethane foaming surrounding and blocking self-extinguishing method for forest fire comprises the following steps:

step S1: selecting a polyurethane foaming material;

step S2: constructing a forest fire containment area, and dividing the forest fire containment area into a forest combustion area, an unburned forest spacer area and a polyurethane foaming containment area;

step S3: and spraying the polyurethane foaming material in the step S1 into the polyurethane foaming enclosing region for enclosing.

The embodiment of the application carries out the blocking through polyurethane foaming, divides the fire area earlier, then sprays the blocking material in polyurethane foaming blocking area for the intensity of a fire is in certain extent, and the burning is from going out, accomplishes fire rescue and treatment.

On the basis of the technical scheme, the invention can be further improved as follows:

further, the polyurethane foam material in the step S1 is a B-level fireproof polyurethane foam material, and the fire extinguishing method has the beneficial effect that the fire can be effectively prevented from spreading due to the fact that the fire is extinguished through the fireproof material.

Further, the specific steps of step S2 are as follows:

step S201: setting parameters, wherein the wind speed is V1, the fire spreading speed in the absence of wind is V2, the fastest drift speed of burnt objects in the absence of wind is V3, and the solidification time of the polyurethane foam material is T;

step S202: forming an unburned forest spacing area by using the outward diffusion distance S of each point on the outer edge of the forest burning area, wherein S is more than or equal to (V1+ V2) T;

step S203: and forming a polyurethane foaming enclosing area by using the outward diffusion distance W of each point at the outer edge of the unburnt forest spacing area, wherein W is not less than (V1+ V3) × T.

Further, the time for fully mixing the polyurethane foaming material in the step S1 is T1, the time for the polyurethane foaming material to fall from the air to the ground is T2, and the setting time T, T ≧ T1+ T2 of the polyurethane foaming material in the step S1.

Further, after the step S3 is completed, the step S4 is performed, and the step S4: after the combustible substances in the forest combustion area and the unburnt forest spacing area are burnt out, forest fire is automatically extinguished, and sporadic ignition points in the polyurethane foaming enclosing area are manually extinguished.

The invention has the beneficial effects that:

1. the embodiment of the application carries out regional division earlier according to the condition of forest fire, separates into a plurality of regions, sprays fire-proof material to specific region, and isolated burning things which may cause a fire disaster to avoid the intensity of a fire to spread.

2. Different fire extinguishing areas can be defined according to different fire conditions, multiple different terrain environments can be adapted to, and the fire can be treated rapidly.

3. The embodiment of the application can complete fire treatment nearby, and safety is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of the distribution of areas of a polyurethane foam block self-extinguishing method for forest fire according to an embodiment of the present invention;

FIG. 2 is a schematic view S, W of a method for self-extinguishing a forest fire by polyurethane foam containment according to an embodiment of the present invention;

reference numerals:

1-a forest burning area; 2-unburned forest spacer region; 3-polyurethane foam containment zone.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

The embodiment of the application is directed to the existing treatment mode for extinguishing the forest fire, the existing forest fire usually needs to be put out the fire by manually carrying fire-fighting equipment, and the existing forest fire is directly extinguished, so that the extinguishing efficiency is low; this application embodiment is through carrying out the conflagration scope earlier according to the conflagration condition and demarcating, places fire extinguishing materials outside certain area, avoids the conflagration to continue to spread.

Examples

The embodiment of the application provides a polyurethane foaming surrounding and blocking self-extinguishing method for forest fire, which comprises the following steps:

step S1: selecting a polyurethane foaming material;

As shown in fig. 1 and 2, the polyurethane foam material adopted in the embodiment of the application is a B-level fireproof polyurethane foam material, and a blocking area can be formed through the foam material, so that the fire in the area can be extinguished automatically, and the safety is high.

Specifically, the specific steps of step S2 are as follows:

step S101: setting parameters: the wind speed is V1, the fire spreading speed is V2 in the absence of wind, the fastest drift speed of burnt objects is V3 in the absence of wind, and the solidification time of the polyurethane foam material is T; the area of the forest combustion area in this step is divided and estimated according to the area of the actual forest fire.

Step S202: forming an unburned forest spacing area by using the outward diffusion distance S of each point on the outer edge of the forest burning area, wherein S is more than or equal to (V1+ V2) T; the calculation method in the embodiment of the application is that a forest burning area is observed, then according to the fact that the fire spreading speed is V2 in the absence of wind, the wind speed is V1, the farthest distance for fire spreading is calculated, each point on the outer edge of the forest burning area serves as an end point extending distance S, and the area formed by the surrounding is used as an unburned forest spacing area after the forest burning area is removed.

Step S203: and forming a polyurethane foaming enclosing area by using the outward diffusion distance W of each point at the outer edge of the unburned forest spacing area, wherein W is not less than (V1+ V3) T. The method comprises the steps of calculating the farthest distance of Mars landing according to the fact that the fastest drifting speed of a burnt object is V3 and the wind speed is V1 under the windless condition, taking each point on the outer edge of an unburned forest spacing area as an end point extension distance W, and taking the area formed by the surrounding area without the unburned forest spacing area and a forest burning area as a polyurethane foaming surrounding area.

Specifically, the time for fully mixing the polyurethane foam material in the step S1 is T1, the time for the polyurethane foam material to float from the air to the ground is T2, and the setting time T, T ≧ T (T1+ T2) of the polyurethane foam material in the step S1; according to the polyurethane foam material, the solidification time is obtained according to the characteristics of the polyurethane foam material, so that the polyurethane foam material is ensured to be solidified after falling to the ground, and a blocking area is formed.

Specifically, after step S3 is completed, step S4 is performed, and step S4: after the combustible substances in the forest combustion area and the unburned forest spacing area are burnt out, forest fire is automatically extinguished, and sporadic ignition points in the polyurethane foaming enclosing area are manually extinguished; after the fire in the area to be blocked is over, the sparks are extinguished manually, and the fire can be eliminated completely.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A polyurethane foaming surrounding and blocking self-extinguishing method for forest fire is characterized by comprising the following steps:

step S1: selecting a polyurethane foaming material;

step S3: spraying the polyurethane foaming material in the step S1 into the polyurethane foaming enclosing region for enclosing;

the specific steps of step S2 are as follows:

step S202: forming an unburned forest spacing area by the outward diffusion distance S of each point on the outer edge of the forest burning area, wherein S is more than or equal to (V1+ V2) T;

step S203: forming a polyurethane foaming enclosing area by outward diffusion distance W of each point at the outer edge of the unburned forest spacing area, wherein W is more than or equal to (V1+ V3) T;

the mixing time of the polyurethane foaming material in the step S1 is T1, the time of the polyurethane foaming material falling from the ground in the air is T2, and the solidification time T, T ≧ T1+ T2 of the polyurethane foaming material in the step S1;

after step S3 is completed, step S4 is performed, and step S4: after the combustible substances in the forest combustion area and the unburned forest spacing area are burnt out, forest fire is automatically extinguished, and sporadic ignition points in the polyurethane foaming enclosing area are manually extinguished.

2. The method as claimed in claim 1, wherein the polyurethane foam material in step S1 is a B-class fire-proof polyurethane foam material.