CN216456603U

CN216456603U - Closed foam-water spraying fire extinguishing system for indoor garage electric vehicle charging facility

Info

Publication number: CN216456603U
Application number: CN202121777557.8U
Authority: CN
Inventors: 陈树辉; 林锋
Original assignee: Guangdong Jianlian Architectural Design Co ltd
Current assignee: Guangdong Jianlian Architectural Design Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-05-10
Anticipated expiration: 2031-08-02

Abstract

The utility model relates to a closed foam-water spray fire extinguishing system for charging facilities of indoor electric vehicles in a garage, wherein a fire control center of the closed foam-water spray fire extinguishing system is respectively and electrically connected with a water flow indicator and a charging facility fault monitoring module to control a closed spray head, a fire water pump and a foam fire extinguishing control valve; the water flow indicator is arranged in the spray main pipe and is triggered by the action of the closed spray head; the charging facility fault monitoring module is used for monitoring the running condition of the charging facility of the electric vehicle; through addding the facility fault monitoring module that charges that is used for monitoring the electric motor car facility operating conditions that charges, the spontaneous combustion hidden danger of electric motor car among the reply indoor garage can in time handle electric motor car burning accident, avoids arousing the condition of a fire of company, effectively ensures the public and private property and personal safety.

Description

Closed foam-water spraying fire extinguishing system for charging facility of indoor garage electric vehicle

Technical Field

The utility model relates to the technical field of fire fighting; in particular to a closed foam-water spraying fire extinguishing system for an indoor garage electric vehicle charging facility.

Background

In recent years, under the guidance of national carbon peak-reaching targets and related industrial policies, the holding amount of new energy electric vehicles in various regions is continuously increased along with the continuous popularization and promotion of new energy technologies in the automobile industry.

However, the energy storage technology of the electric vehicle is not completely mature and reliable, so that the fire of a plurality of batteries of the electric vehicle on the market develops rapidly after spontaneous combustion occurs, and if the batteries are not extinguished in time, a connected fire condition can be caused; particularly, in some self-ignition accidents of the electric vehicle in an indoor garage, other vehicles around the self-ignition electric vehicle are easy to spread, a domino effect is caused, and personal and property losses are further enlarged. The spontaneous combustion accident of the electric vehicle caused by factors such as charging and the like or faults is always one of potential threats to public safety. Therefore, further improvement and optimization of the indoor garage, especially the fire-fighting facility of the indoor garage equipped with the electric vehicle charging facility, is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a closed foam-water spraying fire extinguishing system for an indoor garage electric vehicle charging facility, aiming at solving the limitations of the prior art.

In order to realize the purpose of the utility model, the technical proposal is that:

a closed foam-water spraying fire extinguishing system for charging facilities of electric vehicles in an indoor garage comprises a fire fighting pipe network distributed in the indoor garage, a closed nozzle connected with the fire fighting pipe network, a fire fighting water pump, a foam fire extinguishing control valve, a foam storage tank, a foam proportion mixer, a fire fighting control center, a water flow indicator and a charging facility fault monitoring module;

the fire-fighting pipe network comprises a spray main pipe and a foam liquid pipe, the spray main pipe is connected with fire-fighting water through the fire-fighting water pump, and the foam storage tank is connected with the spray main pipe through the foam fire-fighting control valve, the foam liquid pipe and a foam proportional mixer;

the fire control center is respectively and electrically connected with the water flow indicator and the charging facility fault monitoring module and controls the closed spray head, the fire pump and the foam fire extinguishing control valve; the water flow indicator is arranged in the spray main pipe and is triggered by the action of the closed spray head; the charging facility fault monitoring module is used for monitoring the running condition of the charging facility of the electric vehicle.

Compared with the prior art, according to the scheme provided by the utility model, the charging facility fault monitoring module for monitoring the running condition of the charging facility of the electric vehicle is additionally arranged, the spontaneous combustion hidden danger of the electric vehicle in an indoor garage is dealt with, the burning accident of the electric vehicle can be timely handled, the fire condition of the connected electric vehicle is avoided, and the public and private property and personal safety are effectively guaranteed.

As an optimal scheme, the closed foam-water spraying fire extinguishing system for the electric vehicle charging facility of the indoor garage further comprises a parking space infrared early warning module electrically connected with the fire control center, wherein the parking space infrared early warning module is distributed on the ground of the indoor garage and used for recognizing the license plate type of a vehicle and the electric vehicle chassis through RGB cameras and monitoring the temperature of the electric vehicle chassis through the infrared cameras.

As a preferred scheme, the closed foam-water spraying fire extinguishing system for the indoor garage electric vehicle charging facility further comprises a wet alarm valve connected to the spraying main pipe, wherein the wet alarm valve is triggered by the water flow action and controls the fire pump.

Furthermore, the foam storage tank and the wet alarm valve are arranged in the same equipment room.

Preferably, the foam liquid pipe is pre-filled with foam liquid.

Preferably, the foam liquid pipe is arranged in a branch shape along the spraying main pipe.

Preferably, a check valve for preventing water from flowing into the foam liquid pipe is arranged in front of the foam proportioner.

As a preferred scheme, the fire-fighting pipe network forms a plurality of fire-fighting zones, and the area of each fire-fighting zone is within 2000 square meters.

Preferably, the rated storage tank capacity of the foam storage tank is 2000L, and the actual storage capacity is 1600L.

Drawings

Fig. 1 is a schematic view of a closed foam-water spray fire extinguishing system for an indoor garage electric vehicle charging facility provided in embodiment 1 of the present invention;

fig. 2 is a schematic view of a closed foam-water spray fire extinguishing system for an indoor garage electric vehicle charging facility provided in embodiment 2 of the present invention;

description of reference numerals: 1. a fire pump; 2. a foam fire extinguishing control valve; 3. a fire control center; 4. a water flow indicator; 5. a charging facility fault monitoring module; 6. a parking space infrared early warning module; 7. wet alarm valve.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent;

it should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The utility model is further illustrated below with reference to the figures and examples.

The utility model is further illustrated below with reference to the figures and examples.

The present invention provides the following scheme:

example 1

Referring to fig. 1, a closed foam-water spray fire extinguishing system for charging facilities of electric vehicles in an indoor garage comprises a fire-fighting pipe network distributed in the indoor garage and a closed spray head connected with the fire-fighting pipe network, and further comprises a fire-fighting water pump 1, a foam fire extinguishing control valve 2, a foam storage tank, a foam proportion mixer, a fire-fighting control center 3, a water flow indicator 4 and a charging facility fault monitoring module 5;

the fire fighting pipe network comprises a spray main pipe and a foam liquid pipe, the spray main pipe is connected with fire fighting water through the fire fighting water pump 1, and the foam storage tank is connected with the spray main pipe through the foam fire fighting control valve 2, the foam liquid pipe and a foam proportional mixer;

the fire control center 3 is respectively and electrically connected with a water flow indicator 4 and a charging facility fault monitoring module 5, and controls the closed spray head, the fire water pump 1 and the foam fire extinguishing control valve 2; the water flow indicator 4 is arranged in the spray main pipe and is triggered by the action of the closed spray head; the charging facility fault monitoring module 5 is used for monitoring the running condition of the charging facility of the electric vehicle.

Compare in prior art, the scheme that this embodiment provided utilizes the mode of foam and water mixture in the fire control pipe network, through addding the facility fault monitoring module that charges that is used for monitoring the electric motor car facility operation condition that charges, deals with the spontaneous combustion hidden danger of electric motor car in the indoor garage, can in time handle electric motor car burning accident, avoids arousing the condition of a fire of company's piece, effectively ensures public and private property and personal safety.

Specifically, the closed spray head is an automatic spray head with a heat sensitive element and a sealing assembly thereof, the heat sensitive element can act in a preset temperature range, so that the heat sensitive element and the sealing assembly thereof are separated from the spray head body, water is sprayed in a specified protection area according to a specified shape and water quantity, the water flow indicator 4 is triggered, and the fire control center 3 controls the fire pump 1 and the foam fire extinguishing control valve 2 to act;

because the abnormal operation of the charging facility may cause the spontaneous combustion of the electric vehicle, in this embodiment, the closed type nozzle is also directly controlled by the fire control center 3, and the fire control center 3 can determine whether to start the closed type nozzle at the corresponding position of the abnormal charging facility according to the actual situation after the charging facility fault monitoring module 5 monitors the abnormality of the charging facility, so as to deal with the spontaneous combustion hidden danger of the electric vehicle in the indoor garage and timely handle the combustion accident of the electric vehicle.

Example 2

Referring to fig. 2, the closed foam-water spray fire extinguishing system for the charging facility of the indoor garage electric vehicle comprises a fire fighting pipe network distributed in the indoor garage, a closed spray head connected with the fire fighting pipe network, a fire fighting water pump 1, a foam fire extinguishing control valve 2, a foam storage tank, a foam proportion mixer, a fire fighting control center 3, a water flow indicator 4 and a charging facility fault monitoring module 5;

the fire control center 3 is respectively and electrically connected with a water flow indicator 4 and a charging facility fault monitoring module 5, and controls the closed spray head, the fire water pump 1 and the foam fire extinguishing control valve 2; the water flow indicator 4 is arranged in the spray main pipe and is triggered by the action of the closed spray head; the charging facility fault monitoring module 5 is used for monitoring the running condition of the charging facility of the electric vehicle;

still include with the infrared early warning module 6 of parking stall that 3 electricity of fire control center are connected, the infrared early warning module 6 of parking stall distributes on the ground in indoor garage for through license plate type and the electric motor car chassis of RGB camera discernment vehicle, through the temperature of infrared camera control electric motor car chassis.

Specifically, through addding the infrared early warning module 6 of parking stall can judge out through the license plate type of discernment vehicle which is the electric motor car, and because near the chassis is generally located to the battery of electric motor car, the temperature through infrared camera control electric motor car chassis can in time early warning, discovery, deal with relevant condition of a fire.

Further, the fire fighting water pump also comprises a wet alarm valve 7 connected to the spray main pipe, the wet alarm valve 7 is triggered by the action of the water flow indicator 4, and the wet alarm valve 7 controls the fire fighting water pump 1.

The wet alarm valve generally comprises a wet alarm valve body, a system side pressure gauge, a water supply side pressure gauge, a compensator, a water discharge test valve (normally closed), an alarm control valve (normally open), an alarm test valve (normally closed), a filter, a delayer, a pressure switch and a hydraulic alarm bell, wherein when the wet alarm valve 7 acts, the pressure switch acts, the hydraulic alarm bell gives an alarm, and the fire pump is controlled to be automatically started. The fire control center 3 can learn the fire alarm location through the pressure switch action.

Further, the foam storage tank and the wet alarm valve 7 are arranged in the same equipment room.

Further, the foam liquid pipe is filled with foam liquid in advance.

Furthermore, the foam liquid pipe is arranged along the spraying main pipe in a branch shape.

Furthermore, a check valve for preventing water from entering the foam liquid pipe is arranged in front of the foam proportion mixer.

Furthermore, the fire-fighting pipe network forms a plurality of fire-fighting zones, and the area of each fire-fighting zone is within 2000 square meters. Typically each wet alarm valve may be responsible for three fire zones.

Specifically, a proportional pressure reducing valve (2:1), a water testing valve, a drain valve and the like can be arranged in the spray main pipe.

In an optional embodiment, the closed foam-water spraying fire extinguishing system of the charging facility of the indoor garage electric vehicle has the supply intensity of 6.5L/(min square meter), and the estimated flow rate is as follows:

Q＝1.3×465×6.5/60＝65.5(L/s)

the foam storage tank stores water film-forming foaming agent. Adopting an aqueous film-forming foam extinguishing agent AFFF 3%, wherein the foam proportion is 3%, and the foam liquid amount is as follows:

Wp＝1.1WLb％(L)＝1.1×48000×3％＝1584(L)

the supply time of the foam mixed liquid is 10min, and the design dosage of the foam mixed liquid is as follows:

WL ═ QL × TL (liter)

Wherein WL is the amount of foam mixture (liter)

TL is the time 10 (minutes) for continuous feeding of the mixed solution

Then: WL 80 × (10 × 60) ═ 48000(L)

Furthermore, the rated storage tank capacity of the foam storage tank is 2000L, and the actual storage capacity is 1600L. The foam storage tank adopts a storage tank with a capsule.

Specifically, the actual storage capacity does not include the capacity in the foam concentrate piping that is normally filled with foam concentrate.

In one example, when the system piping is filled with water, at a flow rate of 8L/s, the time from system start-up to foam injection should not be greater than 2min, at the worst point the piping volume from multiple spray heads (up to 8L/s) to the proportioner is not greater than 8 x 2 x 60-960 (L);

the volume of the piping from the proportioner to the worst-point injector (up to 8L/s) was as follows:

specifically, the proportioner is generally located in the center of a fire-protection subarea, and the spraying main pipe behind the proportioner is calculated according to DN150, and the length of the spraying main pipe can be estimated according to about 38 meters.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A closed foam-water spraying fire extinguishing system for charging facilities of indoor garages and electric vehicles is characterized by comprising a fire fighting pipe network distributed in an indoor garage, a closed spray head connected with the fire fighting pipe network, a fire fighting water pump (1), a foam fire extinguishing control valve (2), a foam storage tank, a foam proportion mixer, a fire fighting control center (3), a water flow indicator (4) and a charging facility fault monitoring module (5);

the fire fighting pipe network comprises a spray main pipe and a foam liquid pipe, the spray main pipe is connected with fire fighting water through the fire fighting water pump (1), and the foam storage tank is connected with the spray main pipe through the foam fire fighting control valve (2), the foam liquid pipe and a foam proportion mixer;

the fire control center (3) is respectively and electrically connected with the water flow indicator (4) and the charging facility fault monitoring module (5) to control the closed spray head, the fire pump (1) and the foam fire extinguishing control valve (2); the water flow indicator (4) is arranged in the spray main pipe and is triggered by the action of the closed spray head; the charging facility fault monitoring module (5) is used for monitoring the running condition of the charging facility of the electric vehicle.

2. The closed foam-water spray fire extinguishing system for the indoor garage electric vehicle charging facility as claimed in claim 1, further comprising parking space infrared early warning modules (6) electrically connected with the fire control center (3), wherein the parking space infrared early warning modules (6) are distributed on the ground of the indoor garage and used for recognizing the license plate type of a vehicle and an electric vehicle chassis through RGB cameras, and the temperature of the electric vehicle chassis is monitored through the infrared cameras.

3. The closed foam-water spray fire extinguishing system for the indoor garage electric vehicle charging facility according to claim 1, further comprising a wet alarm valve (7) connected to the spray trunk, wherein the wet alarm valve (7) is triggered by the action of the water flow indicator (4), and the wet alarm valve (7) controls the fire pump (1).

4. The closed foam-water spray fire extinguishing system for the indoor garage electric vehicle charging facility according to claim 3, wherein the foam storage tank and the wet alarm valve (7) are arranged in the same equipment room.

5. The closed foam-water sprinkler fire extinguishing system for an indoor garage electric vehicle charging facility of claim 1, wherein the foam pipe is pre-filled with foam liquid.

6. The closed foam-water spray fire extinguishing system for an indoor garage electric vehicle charging facility according to claim 1, wherein the foam concentrate pipe is arranged in a branch shape along the spray trunk.

7. The closed foam-water sprinkler fire extinguishing system for an indoor garage electric vehicle charging facility of claim 1, wherein a check valve for preventing water flow into the foam pipe is provided in front of the foam proportioner mixer.

8. The closed foam-water spray fire extinguishing system for the indoor garage electric vehicle charging facility according to claim 1, wherein the fire protection pipe network forms a plurality of fire protection zones, and the area of each fire protection zone is within 2000 square meters.

9. The closed foam-water sprinkler fire extinguishing system for an indoor garage electric vehicle charging facility of claim 1, wherein the foam storage tank has a rated storage tank capacity of 2000L and an actual storage capacity of 1600L.