An automatic fire extinguishing system for electrical rooms

Abstract

The application provides an automatic fire extinguishing system for an electrical room, and relates to the technical field of automatic fire extinguishing.The automatic fire extinguishing system comprises a first fire detector, a first fire extinguishing nozzle, a second fire detector and a second fire extinguishing nozzle.The first fire detector is used for detecting a first fire signal in each electrical cabinet.The first fire extinguishing nozzle is arranged in each electrical cabinet.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 installed on a conveying pipeline to convey fire extinguishing agent to the first fire extinguishing nozzle and the second fire extinguishing nozzle.A controller controls the first fire extinguishing nozzle to spray fire extinguishing agent to extinguish the electrical cabinet according to the first fire signal, or controls the second fire extinguishing nozzle to spray fire extinguishing agent to extinguish the electrical room according to the second fire signal.The application controls the corresponding first fire extinguishing nozzle to spray fire extinguishing agent to locally extinguish the electrical cabinet when the first fire signal is detected, so that the purpose of precise fire extinguishing is achieved.

Description

Technical Field

[0001] This application relates to the field of automatic fire extinguishing technology, and in particular to an automatic fire extinguishing system for electrical rooms. Background Technology

[0002] Gantry cranes, also known as portal cranes, are a type of bridge crane. In ports, they are mainly used for loading and unloading cargo and bulk materials in outdoor freight yards and material yards. Their metal structure resembles a portal frame, with two legs supporting the main beam, allowing them to travel directly on ground-level tracks. The main beam can have cantilever beams extending outwards at both ends. Gantry cranes are characterized by high site utilization, a large operating range, wide adaptability, and strong versatility, making them widely used in port freight yards.

[0003] The normal operation of a gantry crane relies on numerous electrical components, which are centrally installed in an electrical room and distributed across different electrical cabinets. Due to the large number of components and their associated wiring, the electrical room often poses a fire hazard. A fire would directly damage the electrical components and disrupt the gantry crane's normal operation, with potentially disastrous consequences. Currently, existing electrical rooms typically have a single fire extinguishing system installed on the roof, which cannot accurately extinguish a fire based on its specific location. Summary of the Invention

[0004] This application provides an automatic fire extinguishing system for electrical rooms to at least solve the above-mentioned technical problems existing in the prior art.

[0005] According to a first aspect of this application, an automatic fire extinguishing system for an electrical room is provided, wherein the electrical room is equipped with a plurality of electrical cabinets, and the automatic fire extinguishing system for the electrical room includes:

[0006] A number of first fire detectors are used to detect the first fire signal in each electrical cabinet.

[0007] A number of primary fire extinguishing nozzles are installed in each electrical cabinet;

[0008] The second fire detector is used to detect a second fire signal in the electrical room;

[0009] The second fire extinguishing nozzle is installed on the roof of the electrical room;

[0010] 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;

[0011] The controller controls the first fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical cabinet based on the first detected fire signal, or controls the second fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical room based on the second detected fire signal.

[0012] In some embodiments of the first aspect of this application, the method by which the controller controls the first fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical cabinet based on a detected first fire signal includes:

[0013] S100, the controller stores several data sets, the data sets 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;

[0014] S101, the first fire detector uploads the detected first fire signal and the number of the first fire detector together;

[0015] S102, after receiving the first fire signal and the number of the first fire detector uploaded together, the controller determines the location 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 fire extinguishing agent to extinguish the fire in the electrical cabinet.

[0016] In some embodiments of the first aspect of this application, the method of the controller controlling the first fire extinguishing nozzle to spray fire extinguishing agent to extinguish the fire on the electrical cabinet according to the detected first fire signal further includes:

[0017] S103, Based on the location of the electrical cabinet determined in S102, determine all other electrical cabinets within its specified range S;

[0018] S104, control 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 cabinets.

[0019] In some embodiments of the first aspect of this application, the defined range S includes a circle with radius r centered on the location of the electrical cabinet determined in S102.

[0020] In some embodiments of the first aspect of this application, the method for determining all other electrical cabinets within its defined range S in step S103 includes:

[0021] S1031, Extract the location of all other electrical cabinets in the electrical room;

[0022] S1032, calculate 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;

[0023] S1033, compare the straight-line distance with the radius r. If the straight-line distance is less than the radius r, then the corresponding electrical cabinet is within the specified range S.

[0024] In some embodiments of the first aspect of this application, the method of the controller controlling the first fire extinguishing nozzle to spray fire extinguishing agent to extinguish the fire on the electrical cabinet according to the detected first fire signal further includes:

[0025] S113, The controller pre-stores the numbers of the first fire extinguishing nozzles arranged sequentially along the flow direction of the fire extinguishing agent in the delivery pipeline;

[0026] S114, based on the number of the first fire detector received, select k downstream first fire extinguishing nozzles to spray extinguishing agent to pre-extinguish the fire on the electrical cabinet.

[0027] In some embodiments of the first aspect of this application, k is 2 or 3.

[0028] In some embodiments of the first aspect of this application, the method by which the controller controls the second fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical room based on the detected second fire signal is as follows:

[0029] The second fire extinguishing nozzles are of several numbers and are arranged in an array on the roof of the electrical room;

[0030] Upon receiving the second fire signal, the controller activated all second fire extinguishing nozzles to spray extinguishing agent and conduct a total flooding fire suppression operation on the electrical room.

[0031] In some embodiments of the first aspect of this application, when multiple first fire signals are detected simultaneously, the positions of the electrical cabinets corresponding to the multiple first fire signals are determined respectively, and the distance between the positions of any two electrical cabinets is taken as the maximum value of the distance. If the maximum value of the distance is greater than a set distance threshold, then all second fire extinguishing nozzles are controlled to spray fire extinguishing agent to perform total flooding fire extinguishing on the electrical room.

[0032] In some embodiments of the first aspect of this 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 extinguishing agent to perform total flooding fire extinguishing on the electrical room.

[0033] Compared with the prior art, this application has the following advantages:

[0034] 1. Based on the correspondence between the location of the electrical cabinet, the number of the first fire detector inside the electrical cabinet, and the number of the first fire extinguishing nozzle contained in the stored data set, this application controls the corresponding first fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical cabinet when a first fire signal is detected, thereby achieving the purpose of precise fire extinguishing.

[0035] 2. This application also pre-extinguishes fires on other electrical cabinets within a specified range around the electrical cabinet that detected the first fire signal, preventing the fire from spreading in advance and further enhancing the safety of the electrical room.

[0036] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0037] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which:

[0038] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0039] Figure 1 A side view of the electrical room layout of this application is shown.

[0040] Figure 2 A schematic diagram of the layout of the electrical room in the present application is shown in top view.

[0041] Explanation of reference numerals in the attached figures:

[0042] 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 Implementation

[0043] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] Example 1:

[0045] This embodiment provides an automatic fire extinguishing system for electrical rooms, which enables precise fire suppression within electrical rooms.

[0046] like Figure 1 and Figure 2 As shown, the electrical room 1 is equipped with several electrical cabinets 3, and each electrical cabinet 3 is equipped with electrical components for controlling the operation of the gantry crane.

[0047] The automatic fire extinguishing system for the electrical room includes the following components: a first fire detector 31, a first fire extinguishing nozzle 32, a second fire detector 41, a second fire extinguishing nozzle 42, a delivery pipeline, and a controller.

[0048] A number of first fire detectors 31 are installed one-to-one in the electrical cabinet 2, and are used to detect the first fire signal in each electrical cabinet and upload it to the controller.

[0049] A number of first fire extinguishing nozzles 32 are respectively installed in each electrical cabinet 2 to spray fire extinguishing agent into the electrical cabinet 2 in order to extinguish the fire in the individual electrical cabinet 2.

[0050] The second fire detector 41 is installed in the electrical room 1 to detect the second fire signal in the electrical room 1 and upload it to the controller.

[0051] The second fire extinguishing nozzle 42 is installed on the roof of the electrical room 1 and is used to spray fire extinguishing agent into the electrical room 1. It is worth noting that there can be one or more second fire extinguishing nozzles 42, such as... Figure 1 The diagram shown is an installation schematic of 3×3 second fire extinguishing nozzles 42.

[0052] In order to deliver the extinguishing agent to the first extinguishing nozzle 32 and the second extinguishing nozzle 42, in this embodiment, the first extinguishing nozzle 32 and the second extinguishing nozzle 42 are installed on the delivery pipeline, specifically, as follows: Figure 1 As shown, the first fire extinguishing nozzle 32 is installed on the first delivery pipe 5, as... Figure 2 As shown, the first delivery pipe 5 is preferably serpentine 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 pipe 6. The first delivery pipe 5 and the second delivery pipe 6 can be independent of each other or connected.

[0053] The controller controls the first fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical cabinet based on the first detected fire signal, or controls the second fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical room based on the second detected fire signal.

[0054] Specifically, the method by which the controller controls the first fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical cabinet based on the detected first fire signal includes:

[0055] S100, the controller stores several data sets, the data sets 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.

[0056]

[0057] Among them, subscript Represents the serial number. Representing the One data set; Representing the The location of each electrical cabinet is specifically expressed as follows: ; Representing the The serial number of the first fire detector in the electrical cabinet; Representing the The number of the first fire extinguishing nozzle in the electrical cabinet.

[0058] S101, the first fire detector will detect the first fire signal. and the number of the first fire detector Upload together;

[0059] Specifically, the first fire detector uploads the first fire signal at regular intervals. If a fire is detected, the first fire signal will be issued. If no fire is detected, then the first fire signal... The aforementioned first fire signal detected Specifically refers to the case where the value is 1.

[0060] S102, the controller receives the first fire signal uploaded along with it. and the number of the first fire detector Then, the location of the electrical cabinet is determined based on the data set. and the number of the first fire extinguishing nozzle And control the corresponding first fire extinguishing nozzle to spray Fire extinguishing agents are sprayed onto electrical cabinets to extinguish fires, thereby achieving the goal of precisely extinguishing fires in electrical cabinets that have caught fire.

[0061] Simultaneously, based on precise fire suppression, to further ensure the safety of other electrical cabinets surrounding the fire-affected electrical cabinet, this embodiment further pre-extinguishes the fire on other electrical cabinets 2 within the same electrical room 1. This mainly includes the following two methods:

[0062] Method 1:

[0063] S103, the location of the electrical cabinet determined according to S102. , determine all other electrical cabinets within its specified range S.

[0064] The defined range S includes a circle with radius r centered on the location of the electrical cabinet determined in S102. The method for determining all other electrical cabinets within its defined range S includes:

[0065] S1031, Extract the location of all other electrical cabinets in the electrical room;

[0066] S1032, Calculate the positions of all other electrical cabinets in the electrical room. Location of the electrical cabinet as determined by S102 straight-line distance :

[0067]

[0068] S1033, compare the distances of each straight line. The electrical cabinet is within the specified range S if the straight-line distance is less than the radius r; otherwise, it is outside the specified range S.

[0069] S104, control 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 cabinets.

[0070] Method 2:

[0071] S113, the controller pre-stores the numbers of the first fire extinguishing nozzles arranged sequentially along the flow direction of the fire extinguishing agent in the delivery pipeline.

[0072] like Figure 2 As shown, there are nine electrical cabinets 2 in electrical room 1, arranged in a 3×3 array. The first delivery pipe 5 bends in a serpentine pattern and connects to the first fire extinguishing nozzles 32 in all electrical cabinets 2. The first fire extinguishing nozzles 32 are numbered along the flow direction of the extinguishing agent within the first delivery pipe 5. The numbers are 1 to 9 in sequence.

[0073] S114, based on the received number of the first fire detector 31 First, determine the corresponding number of the first fire extinguishing nozzle 32. Then, select k downstream first fire extinguishing nozzles to spray fire extinguishing agent to pre-extinguish the fire on the electrical cabinet, where k is 2 or 3.

[0074] Since the first delivery pipe 5 runs through all electrical cabinets 2, a fire in an electrical cabinet 2 may cause local damage to the first delivery pipe 5, especially preventing the extinguishing agent from being delivered smoothly to the downstream electrical cabinets. Therefore, pre-extinguishing the fire in the downstream electrical cabinets can further improve the overall safety.

[0075] For example, if k is 2, when the number of the first fire extinguishing nozzle 32 is determined to be 5, then the first fire extinguishing nozzle 32 downstream of it, numbered 6 and 7, is selected to spray the fire extinguishing agent.

[0076] It is worth noting that Method 1 and Method 2 can be implemented individually or simultaneously. During simultaneous implementation, the electrical cabinets identified for pre-fire suppression by Method 1 and Method 2 may overlap or partially overlap. In this case, the sets of electrical cabinets identified by both methods can be combined.

[0077] The method by which the controller controls the second fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical room based on the detected second fire signal is as follows:

[0078] The second fire extinguishing nozzle 42 is of several kinds and is arranged in an array on the roof of the electrical room 1;

[0079] The controller receives a second fire signal, which means that a fire has occurred in a location other than electrical cabinet 2. It immediately controls all second fire extinguishing nozzles 42 to spray extinguishing agent to carry out total flooding fire extinguishing in the electrical room.

[0080] Simultaneously, when multiple first fire signals are detected at the same time, it means that multiple electrical cabinets 2 are on fire in electrical room 1. The positions of the electrical cabinets corresponding to the multiple first fire signals are determined, and the distance between each pair of electrical cabinets is calculated. The solution for this distance is the same as the solution for 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 on fire are far apart and are likely to spread to the entire electrical room 1. Therefore, all second fire extinguishing nozzles are immediately controlled to spray extinguishing agent to carry out total flooding fire extinguishing in the electrical room.

[0081] In other implementations, if the same first fire signal is continuously detected for a period of time exceeding a set time threshold, it means that the local fire has not been effectively extinguished in time, and all second fire extinguishing nozzles are controlled to spray extinguishing agent to carry out total flooding fire extinguishing of the electrical room.

[0082] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this application can be achieved, and this is not limited herein.

[0083] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0084] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic fire extinguishing system for an electrical room, wherein the electrical room is equipped with a plurality of electrical cabinets, characterized in that, The automatic fire suppression system for the electrical room includes: A number of first fire detectors are used to detect the first fire signal in each electrical cabinet. A number of primary fire extinguishing nozzles are installed in each electrical cabinet; The second fire detector is 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 extinguishing agent to extinguish the fire in the electrical cabinet based on the first detected fire signal, or controls the second fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical room based on the second detected fire signal. The method by which the controller controls the first fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical cabinet based on the detected first fire signal includes: S100, the controller stores several data sets, the data sets 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 and the number of the first fire detector together; S102, after receiving the first fire signal and the number of the first fire detector uploaded together, the controller determines the location 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 fire extinguishing agent to extinguish the fire in the electrical cabinet. The method of controlling the first fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical cabinet based on the detected first fire signal also includes: S103, Based on the location of the electrical cabinet determined in S102, determine all other electrical cabinets within its specified range S; S104, control 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 cabinets; The method of controlling the first fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical cabinet based on the detected first fire signal also includes: S113, The controller pre-stores the numbers of the first fire extinguishing nozzles arranged sequentially along the flow direction of the fire extinguishing agent in the delivery pipeline; S114, based on the number of the first fire detector received, select k downstream first fire extinguishing nozzles to spray extinguishing agent to pre-extinguish the fire on the electrical cabinet. Find the union of the electrical cabinets determined in S103 and the electrical cabinets corresponding to the numbers of the k downstream first fire extinguishing nozzles selected in S114.

2. The automatic fire extinguishing system for electrical rooms according to claim 1, characterized in that, The specified range S includes a circle with radius r centered on the location of the electrical cabinet determined by S102.

3. The automatic fire extinguishing system for electrical rooms according to claim 2, characterized in that, The method for determining all other electrical cabinets within their specified range S in S103 includes: S1031, Extract the location of all other electrical cabinets in the electrical room; S1032, calculate 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 the straight-line distance with the radius r. If the straight-line distance is less than the radius r, then the corresponding electrical cabinet is within the specified range S.

4. The automatic fire extinguishing system for electrical rooms according to claim 1, characterized in that, The value of k is 2 or 3.

5. The automatic fire extinguishing system for electrical rooms according to claim 2, characterized in that, The method by which the controller controls the second fire extinguishing nozzle to spray extinguishing agent to extinguish the fire in the electrical room based on the detected second fire signal is as follows: The second fire extinguishing nozzles are of several numbers and are arranged in an array on the roof of the electrical room; Upon receiving the second fire signal, the controller activated all second fire extinguishing nozzles to spray extinguishing agent and conduct a total flooding fire suppression operation on the electrical room.

6. The automatic fire extinguishing system for electrical rooms according to claim 5, characterized in that, When multiple first fire signals are detected simultaneously, the location of the electrical cabinets corresponding to the multiple first fire signals is determined, and the distance between the locations of any two electrical cabinets is determined. 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 carry out total flooding fire extinguishing of the electrical room.

7. The automatic fire extinguishing system for electrical rooms according to claim 6, characterized in that, When the same first fire signal is continuously detected for a period of time exceeding the set time threshold, control all second fire extinguishing nozzles to spray extinguishing agent to carry out total flooding fire extinguishing of the electrical room.

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