Automatic fire extinguishing system for electrical room

Abstract

The invention provides an automatic fire extinguishing system for an electrical room, and relates to the technical field of automatic fire extinguishing. Comprising a first fire detector used for detecting a first fire signal in each electrical cabinet; the first fire extinguishing nozzles are arranged in the electrical cabinets; the second fire detector is used for detecting a second fire signal in the electrical room; the second fire extinguishing nozzle is arranged on the roof of the electrical room; the first fire extinguishing nozzle and the second fire extinguishing nozzle are mounted on the conveying pipeline so as to convey a fire extinguishing agent to the first fire extinguishing nozzle and the second fire extinguishing nozzle; and the controller controls the first fire extinguishing nozzle to spray a fire extinguishing agent to extinguish the electrical cabinet according to the first fire signal, or controls the second fire extinguishing nozzle to spray a fire extinguishing agent to extinguish the electrical room according to the second fire signal. When the first fire signal is detected, the corresponding first fire extinguishing nozzle is controlled to spray the fire extinguishing agent to carry out local fire extinguishing on the electrical cabinet, and the purpose of precise fire extinguishing is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of automatic fire extinguishing, and in particular to an automatic fire extinguishing system for an electrical room. Background Art

[0002] Gantry crane, also known as gantry crane, is a variation of bridge crane. In ports, it is mainly used for loading and unloading operations of outdoor cargo yards, material yards, and bulk cargo. Its metal structure is like a door-shaped frame, with two legs installed under the main beam, which can walk directly on the track on the ground. Both ends of the main beam can have outward cantilever beams. Gantry cranes have the characteristics of high site utilization, large operating range, wide adaptability, and strong versatility, and are widely used in port cargo yards.

[0003] The normal operation of the gantry crane depends on the work of many electrical components, which are installed in an electrical room and distributed in different electrical cabinets. Due to the large number of electrical components and corresponding wiring, there is often a safety hazard of fire in the electrical room. Once a fire occurs, it will directly lead to the damage of the electrical components and affect the normal operation of the gantry crane, with disastrous consequences. In the existing electrical room, a single fire extinguishing device is generally installed directly on the roof, which cannot accurately extinguish the fire according to the specific location of the fire. Summary of the invention

[0004] The present application provides an automatic fire extinguishing system for an electrical room to at least solve the above technical problems existing in the prior art.

[0005] According to a first aspect of the present application, an automatic fire extinguishing system for an electrical room is provided, wherein a plurality of electrical cabinets are arranged in the electrical room, and the automatic fire extinguishing system for the electrical room comprises: A plurality of first fire detectors, respectively used for detecting a first fire signal in each electrical cabinet; A number of first fire extinguishing nozzles are respectively arranged in each electrical cabinet; A second fire detector, used to detect a second fire signal in the electrical room; The second fire extinguishing nozzle is installed on the roof of the electrical room; The first fire extinguishing nozzle and the second fire extinguishing nozzle are installed on a delivery pipeline to deliver the fire extinguishing agent to the first fire extinguishing nozzle and the second fire extinguishing nozzle; The controller controls the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet according to the detected first fire signal, or controls the second fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical room according to the detected second fire signal.

[0006] In certain embodiments of the first aspect of the present application, the method in which the controller controls the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet according to the detected first fire signal includes: S100, the controller stores a plurality of data groups, the data groups including the location of the electrical cabinet, the number of the first fire detector in the electrical cabinet, and the number of the first fire extinguishing nozzle; S101, the first fire detector uploads the detected first fire signal together with the number of the first fire detector; S102, after receiving the first fire signal and the number of the first fire detector uploaded together, the controller determines the position of the electrical cabinet and the number of the first fire extinguishing nozzle according to the data group, and controls the corresponding first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet.

[0007] In certain embodiments of the first aspect of the present application, the method in which the controller controls the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet according to the detected first fire signal further includes: S103, according to the position of the electrical cabinet determined in S102, determine all other electrical cabinets within the specified range S; S104, controlling the first fire extinguishing nozzles in all other electrical cabinets within the specified range S to spray fire extinguishing agent to pre-extinguish the fire in the electrical cabinet.

[0008] In certain embodiments of the first aspect of the present application, the specified range S includes a circle with a radius r and a position of the electrical cabinet determined in S102 as the center.

[0009] In certain embodiments of the first aspect of the present application, the method of determining all other electrical cabinets within the specified range S in S103 includes: S1031, extract the locations of all other electrical cabinets in the electrical room; S1032, calculating the straight-line distance between the positions of all other electrical cabinets in the electrical room and the position of the electrical cabinet determined in S102; S1033, compare each straight-line distance with the radius r. If the straight-line distance is smaller than the radius r, the corresponding electrical cabinet is within the specified range S.

[0010] In certain embodiments of the first aspect of the present application, the method in which the controller controls the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet according to the detected first fire signal further includes: S113, the controller pre-stores the serial numbers of the first fire extinguishing nozzles arranged in sequence along the flow direction of the fire extinguishing agent in the delivery pipeline; S114, according to the received number of the first fire detector, select k first fire extinguishing nozzles downstream thereof to spray fire extinguishing agent to pre-extinguish the fire in the electrical cabinet.

[0011] In certain embodiments of the first aspect of the present application, k is 2 or 3.

[0012] In certain embodiments of the first aspect of the present application, the method in which the controller controls the second fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical room according to the detected second fire signal is as follows: The second fire extinguishing nozzles are arranged in array on the roof of the electrical room; The controller receives the second fire signal and controls all second fire extinguishing nozzles to spray fire extinguishing agent to fully flood the electrical room for fire extinguishing.

[0013] In certain embodiments of the first aspect of the present application, when multiple first fire signals are detected at the same time, the positions of the electrical cabinets corresponding to the multiple first fire signals are determined respectively, and the distance between the positions of the electrical cabinets is determined pairwise, and the maximum value of the distance is taken. If the maximum value of the distance is greater than a set distance threshold, all second fire extinguishing nozzles are controlled to spray fire extinguishing agent to fully flood the electrical room for fire extinguishing.

[0014] In certain embodiments of the first aspect of the present application, when the time for which the same first fire signal is continuously detected exceeds a set time threshold, all second fire extinguishing nozzles are controlled to spray fire extinguishing agent to fully flood the electrical room for fire extinguishing.

[0015] Compared with the prior art, this application has the following beneficial effects: 1. The present application controls the corresponding first fire extinguishing nozzle to spray fire extinguishing agent to locally extinguish the fire in the electrical cabinet when the first fire signal is detected, based on the correspondence between the position of the electrical cabinet, the number of the first fire detector in the electrical cabinet, and the number of the first fire extinguishing nozzle, thereby achieving the purpose of precise fire extinguishing.

[0016] 2. The present application also performs pre-fire extinguishing on other electrical cabinets within a specified range around the electrical cabinet where the first fire signal is detected, thereby preventing the fire from spreading in advance and further improving the safety in the electrical room.

[0017] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easily understood. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, wherein: In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0019] Figure 1 A schematic diagram of the layout of the electrical room of the present application in a side view is shown.

[0020] Figure 2 A schematic diagram of the layout of the electrical room of the present application from a top view is shown.

[0021] Description of reference numerals: 1. Electrical room; 2. Electrical cabinet; 31. First fire detector; 32. First fire extinguishing nozzle; 41. Second fire detector; 42. Second fire extinguishing nozzle; 5. First delivery pipeline; 6. Second delivery pipeline. DETAILED DESCRIPTION

[0022] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0023] Embodiment 1: The first embodiment provides an automatic fire extinguishing system for an electrical room, which is used to achieve accurate fire extinguishing in the electrical room.

[0024] like Figure 1 and Figure 2 As shown, a plurality of electrical cabinets 3 are arranged in the electrical room 1, and each electrical cabinet 3 is provided with electrical components for controlling the operation of the gantry crane.

[0025] The automatic fire extinguishing system of the electrical room comprises the following parts: a first fire detector 31, a first fire extinguishing nozzle 32, a second fire detector 41, a second fire extinguishing nozzle 42, a conveying pipeline and a controller.

[0026] A plurality of first fire detectors 31 are disposed in the electrical cabinets 2 in a one-to-one correspondence, and are respectively used to detect the first fire signal in each electrical cabinet and upload the first fire signal to the controller.

[0027] A plurality of first fire extinguishing nozzles 32 are respectively disposed in each electrical cabinet 2 in a one-to-one correspondence, and are used to spray fire extinguishing agent into the electrical cabinet 2 to achieve the purpose of extinguishing the fire of the individual electrical cabinet 2 .

[0028] The second fire detector 41 is arranged in the electrical room 1 and is used to detect the second fire signal in the electrical room 1 and upload it to the controller.

[0029] The second fire extinguishing nozzle 42 is disposed on the roof of the electrical room 1 and is used to spray the fire extinguishing agent into the electrical room 1. It is worth mentioning that the second fire extinguishing nozzle 42 can be one or more. Figure 1As shown, it is a schematic diagram of the installation of 3×3 second fire extinguishing nozzles 42.

[0030] In order to deliver the fire extinguishing agent to the first fire extinguishing nozzle 32 and the second fire extinguishing nozzle 42, in this embodiment, the first fire extinguishing nozzle 32 and the second fire extinguishing nozzle 42 are installed on the delivery pipeline. Specifically, Figure 1 As shown, the first fire extinguishing nozzle 32 is installed on the first delivery pipeline 5. Figure 2 As shown, the first delivery pipeline 5 is preferably bent in a serpentine shape to connect the first fire extinguishing nozzles 32 in all electrical cabinets 2; the second fire extinguishing nozzle 42 is installed on the second delivery pipeline 6. The first delivery pipeline 5 and the second delivery pipeline 6 can be independent of each other or connected.

[0031] The controller controls the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet according to the detected first fire signal, or controls the second fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical room according to the detected second fire signal.

[0032] Specifically, the method in which the controller controls the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet according to the detected first fire signal includes: S100, a plurality of data groups are stored in the controller, wherein the data groups include the location of the electrical cabinet, the serial number of the first fire detector in the electrical cabinet, and the serial number of the first fire extinguishing nozzle.

[0033]

[0034] Among them, the subscript Represents the serial number, Representative data sets; Representative The location of an electrical cabinet is expressed as ; Representative The number of the first fire detector in an electrical cabinet; Representative The number of the first fire extinguishing nozzle in an electrical cabinet.

[0035] S101, the first fire detector detects a first fire signal and the number of the first fire detector Upload together; Specifically, the first fire detector uploads the first fire signal at a certain interval If a fire is detected, the first fire signal ; If no fire is detected, the first fire signal The first fire signal detected above Specifically refers to the case where the value is 1.

[0036] S102: The controller receives the first fire signal uploaded together and the number of the first fire detector Then, the location of the electrical cabinet is determined according to the data set. and the number of the first fire extinguishing nozzle , and control the corresponding first fire extinguishing nozzle to spray Spray fire extinguishing agent to extinguish the fire in the electrical cabinet, thereby achieving the purpose of accurately extinguishing the fire in the electrical cabinet.

[0037] At the same time, on the basis of precise fire extinguishing, in order to further ensure the safety of other electrical cabinets around the electrical cabinet where the fire occurred, this embodiment further performs pre-fire extinguishing on other electrical cabinets 2 in the same electrical room 1 on the basis of the above method. It mainly includes the following two methods: Method 1: S103, the location of the electrical cabinet determined according to S102 , determine all other electrical cabinets within its specified range S.

[0038] The specified range S includes a circle with the position of the electrical cabinet determined in S102 as the center and a radius r. The method for determining all other electrical cabinets within the specified range S includes: S1031, extract the locations of all other electrical cabinets in the electrical room; S1032, calculating the positions of all other electrical cabinets in the electrical room The location of the electrical cabinet determined by S102 Straight line distance :

[0039] S1033, compare each straight line distance If the straight-line distance is less than the radius r, the corresponding electrical cabinet is within the specified range S; otherwise, the corresponding electrical cabinet is outside the specified range S.

[0040] S104, controlling the first fire extinguishing nozzles in all other electrical cabinets within the specified range S to spray fire extinguishing agent to pre-extinguish the fire in the electrical cabinet.

[0041] Method 2: S113, the controller pre-stores the serial numbers of the first fire extinguishing nozzles arranged in sequence along the flow direction of the fire extinguishing agent in the delivery pipeline.

[0042] like Figure 2As shown, there are 9 electrical cabinets 2 in the electrical room 1, arranged in a 3×3 array, and the first delivery pipeline 5 is bent along a serpentine shape and connects the first fire extinguishing nozzles 32 in all electrical cabinets 2. Along the flow direction of the fire extinguishing agent in the first delivery pipeline 5, the number of the first fire extinguishing nozzles 32 is They are 1 to 9 respectively.

[0043] S114, according to the received number of the first fire detector 31 , first determine the number of the corresponding first fire extinguishing nozzle 32 Then, k first fire extinguishing nozzles downstream thereof are selected to spray fire extinguishing agent to pre-extinguish the electrical cabinet, and the k is 2 or 3.

[0044] Since the first delivery pipeline 5 runs through all the electrical cabinets 2, a fire in the electrical cabinet 2 may cause local damage to the first delivery pipeline 5, and especially cause the fire extinguishing agent to be unable to be smoothly delivered to the downstream electrical cabinet. Therefore, pre-extinguishing the downstream electrical cabinet can further improve the overall safety.

[0045] For example, k is 2, and when the number of the first fire extinguishing nozzle 32 is determined to be 5, the first fire extinguishing nozzles 32 numbered 6 and 7 downstream thereof are selected to spray the fire extinguishing agent.

[0046] It is worth noting that the above-mentioned method 1 and method 2 can be implemented separately or simultaneously. During the simultaneous implementation, the electrical cabinets determined by method 1 and method 2 for pre-fire extinguishing may overlap or partially overlap, and the electrical cabinet sets determined by the two methods can be combined.

[0047] The method in which the controller controls the second fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical room according to the detected second fire signal is as follows: The second fire extinguishing nozzles 42 are arranged in a plurality of arrays on the roof of the electrical room 1; The controller receives the second fire signal, which means that a fire occurs outside the electrical cabinet 2 , and immediately controls all second fire extinguishing nozzles 42 to spray fire extinguishing agent to fully flood the electrical room for fire extinguishing.

[0048] At the same time, when multiple first fire signals are detected at the same time, it means that there are multiple electrical cabinets 2 with fire in the electrical room 1. The positions of the electrical cabinets corresponding to the multiple first fire signals are determined respectively, and the distance between the positions of the electrical cabinets is determined. For the solution of the distance, please refer to the solution of the straight-line distance in step S1032. The maximum value of the distance is taken. If the maximum value of the distance is greater than the set distance threshold, it means that the two electrical cabinets 2 with fire are far apart, and it is very likely to spread to the entire electrical room 1. Therefore, all the second fire extinguishing nozzles are immediately controlled to spray fire extinguishing agent to fully flood the electrical room for fire extinguishing.

[0049] In other embodiments, when the time for which the same first fire signal is continuously detected exceeds a set time threshold, it means that the local fire cannot be effectively extinguished in time, and all second fire extinguishing nozzles are controlled to spray fire extinguishing agent to fully flood the electrical room for fire extinguishing.

[0050] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution of this application can be achieved, and this document is not limited here.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0052] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An automatic fire extinguishing system for an electrical room, wherein a plurality of electrical cabinets are arranged in the electrical room, characterized in that: The electrical room automatic fire extinguishing system comprises: A plurality of first fire detectors, respectively used for detecting a first fire signal in each electrical cabinet; A number of first fire extinguishing nozzles are respectively arranged in each electrical cabinet; A second fire detector, used to detect a second fire signal in the electrical room; The second fire extinguishing nozzle is installed on the roof of the electrical room; The first fire extinguishing nozzle and the second fire extinguishing nozzle are installed on a delivery pipeline to deliver the fire extinguishing agent to the first fire extinguishing nozzle and the second fire extinguishing nozzle; The controller controls the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet according to the detected first fire signal, or controls the second fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical room according to the detected second fire signal.

2. The automatic fire extinguishing system for electrical room according to claim 1, characterized in that: The method for the controller to control the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire of the electrical cabinet according to the detected first fire signal includes: S100, the controller stores a plurality of data groups, the data groups including the location of the electrical cabinet, the number of the first fire detector in the electrical cabinet, and the number of the first fire extinguishing nozzle; S101, the first fire detector uploads the detected first fire signal together with the number of the first fire detector; S102, after receiving the first fire signal and the number of the first fire detector uploaded together, the controller determines the position of the electrical cabinet and the number of the first fire extinguishing nozzle according to the data group, and controls the corresponding first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet.

3. The automatic fire extinguishing system for electrical room according to claim 2, characterized in that: The method in which the controller controls the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet according to the detected first fire signal also includes: S103, according to the position of the electrical cabinet determined in S102, determine all other electrical cabinets within the specified range S; S104, controlling the first fire extinguishing nozzles in all other electrical cabinets within the specified range S to spray fire extinguishing agent to pre-extinguish the fire in the electrical cabinet.

4. The automatic fire extinguishing system for electrical room according to claim 3, characterized in that: The specified range S includes a circle with a radius r and a position of the electrical cabinet determined in S102 as the center.

5. The automatic fire extinguishing system for electrical room according to claim 4, characterized in that: The method for determining all other electrical cabinets within the specified range S in S103 includes: S1031, extract the locations of all other electrical cabinets in the electrical room; S1032, calculating the straight-line distance between the positions of all other electrical cabinets in the electrical room and the position of the electrical cabinet determined in S102; S1033, compare each straight-line distance with the radius r. If the straight-line distance is smaller than the radius r, the corresponding electrical cabinet is within the specified range S.

6. The automatic fire extinguishing system for electrical room according to claim 3, characterized in that: The method in which the controller controls the first fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical cabinet according to the detected first fire signal also includes: S113, the controller pre-stores the serial numbers of the first fire extinguishing nozzles arranged in sequence along the flow direction of the fire extinguishing agent in the delivery pipeline; S114, according to the received number of the first fire detector, select k first fire extinguishing nozzles downstream thereof to spray fire extinguishing agent to pre-extinguish the fire in the electrical cabinet.

7. The automatic fire extinguishing system for an electrical room according to claim 6, characterized in that: The k is 2 or 3.

8. The automatic fire extinguishing system for electrical room according to claim 2, characterized in that: The method in which the controller controls the second fire extinguishing nozzle to spray the fire extinguishing agent to extinguish the fire in the electrical room according to the detected second fire signal is as follows: The second fire extinguishing nozzles are arranged in array on the roof of the electrical room; The controller receives the second fire signal and controls all second fire extinguishing nozzles to spray fire extinguishing agent to fully flood the electrical room for fire extinguishing.

9. The automatic fire extinguishing system for an electrical room according to claim 8, characterized in that: When multiple first fire signals are detected at the same time, the positions of the electrical cabinets corresponding to the multiple first fire signals are determined respectively, and the distance between the positions of the electrical cabinets is taken. The maximum value of the distance is taken. If the maximum value of the distance is greater than the set distance threshold, all second fire extinguishing nozzles are controlled to spray fire extinguishing agent to fully flood the electrical room for fire extinguishing.

10. The automatic fire extinguishing system for an electrical room according to claim 9, characterized in that: When the time for which the same first fire signal is continuously detected exceeds a set time threshold, all second fire extinguishing nozzles are controlled to spray fire extinguishing agent to fully flood the electrical room for fire extinguishing.

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