Fireproof system and control method thereof

Abstract

The invention discloses a fire prevention system and a control method thereof, and the system is applied to a transfer station provided with a belt conveyor, and the system comprises a first detector which is arranged in a dust cover of the belt conveyor and is used for generating first fire information which is used for representing whether a conveying belt of the belt conveyor is on fire or not, the conveying belt is arranged in the dustproof cover; the first fire extinguishing device comprises a first water pipe which is arranged in the dustproof cover of the belt conveyor and laid along the conveying belt, and a plurality of spraying holes are distributed in the first water pipe in the extending direction of the conveying belt; and the controller is electrically connected with the first detector and the first fire extinguishing device, and the controller is used for obtaining the first fire behavior information from the first detector and controlling the first fire extinguishing device based on the first fire behavior information so as to extinguish fire or cool the conveying belt. According to the invention, the technical problem that the fire possibility of the transfer station is large is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire protection, and in particular relates to a fire protection system and a control method thereof. Background Art

[0002] There are a large number of belt conveyors in the transfer station. The transport belts of the belt conveyors are prone to fire, which makes the transfer station prone to fire. For this reason, enterprises have begun to use fire detection alarms and automatic fire extinguishing devices. However, due to the requirements of the new environmental protection situation, the state requires the use of dust covers to seal the transport belts to avoid dust pollution. This undoubtedly increases the difficulty of fire detection and fire extinguishing, and has brought an impact on the previous fire detection and automatic fire extinguishing, which makes the transfer station more prone to fire. Therefore, the high possibility of fire in the transfer station is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The embodiment of the present invention provides a fire prevention system and a control method thereof, which solves the technical problem that the possibility of fire in a transfer station is high.

[0004] In a first aspect, an embodiment of the present invention provides a fire prevention system, which is applied to a transfer station equipped with a belt conveyor, the system comprising: a first detector, arranged inside a dust cover of the belt conveyor, for generating first fire information, the first fire information being used to indicate whether a transport belt of the belt conveyor is on fire, the transport belt being arranged inside the dust cover; a first fire extinguishing device, the first fire extinguishing device comprising a first water pipe arranged inside the dust cover of the belt conveyor and laid along the transport belt, the first water pipe having a plurality of spray holes distributed along an extension direction of the transport belt; a controller, electrically connected to the first detector and the first fire extinguishing device, the controller being used to: obtain the first fire information from the first detector, and control the first fire extinguishing device based on the first fire information, so as to extinguish or cool down the transport belt.

[0005] In conjunction with the first aspect of the present invention, in some embodiments, the first detector is a linear heat-sensing fire detector.

[0006] In combination with the first aspect of the present invention, in some embodiments, the distance between the first detector and the transport belt is less than a preset first distance threshold, the distance between the first detector and the roller of the belt conveyor is less than a preset second distance threshold, and the distance between the first detector and the roller of the belt conveyor is less than a preset third distance threshold.

[0007] In combination with the first aspect of the present invention, in some embodiments, the first fire extinguishing device further includes: a first fire water pump, electrically connected to the controller, and the inlet end of the first fire water pump is used to be connected to a water source; a first deluge valve group, electrically connected to the controller, the inlet end of the first deluge valve group is connected to the outlet end of the first fire water pump, and the outlet end of the first deluge valve group is connected to the inlet end of the first water pipe.

[0008] In combination with the first aspect of the present invention, in some embodiments, it also includes: a second detector, which is arranged on the roof of the transfer station and electrically connected to the controller, and the second detector is an aspirating smoke fire detector, and / or a third detector, which is arranged on the roof of the transfer station and electrically connected to the controller, and the third detector is a temperature-sensitive fire detector.

[0009] In combination with the first aspect of the present invention, in some embodiments, a non-material warehouse area is also provided in the transfer station, and the fire protection system further includes: a second detector, which is arranged on the roof of the transfer station and is electrically connected to the controller, and is used to generate second fire information, wherein the second fire information is used to indicate whether the transfer station is on fire; a third detector, which is arranged on the roof of the transfer station and is electrically connected to the controller, and is used to generate third fire information, wherein the third fire information is used to indicate whether the transfer station is on fire, and the second detector and the third detector are of different types; a second fire extinguishing device, which is arranged in the non-material warehouse area and is electrically connected to the controller; the controller is used to: if the second fire information and the third fire information both indicate that the transfer station is on fire, control the second fire extinguishing device to extinguish the fire in the non-material warehouse area.

[0010] In combination with the first aspect of the present invention, in some embodiments, the second fire extinguishing device includes: a second fire water pump, electrically connected to the controller, and the inlet end of the second fire water pump is used to be connected to a water source; a second deluge valve group, electrically connected to the controller, and the inlet end of the second deluge valve group is connected to the outlet end of the second fire water pump; a second water pipe, the inlet end of the second water pipe is connected to the outlet end of the second deluge valve group, the second water pipe is arranged in the non-material storage area of ​​the transfer station, and a plurality of spray holes are distributed at different positions of the second water pipe.

[0011] In combination with the first aspect of the present invention, in some embodiments, a material storage area is also provided in the transfer station, and the fire protection system further includes: a second detector, which is arranged on the roof of the transfer station and is electrically connected to the controller, and is used to generate second fire information, wherein the second fire information is used to indicate whether the transfer station is on fire; a third detector, which is arranged on the roof of the transfer station and is electrically connected to the controller, and is used to generate third fire information, wherein the third fire information is used to indicate whether the transfer station is on fire, and the second detector and the third detector are of different types; a third fire extinguishing device, which is arranged in the material storage area and is electrically connected to the controller; the controller is used to: if the second fire information and the third fire information both indicate that the transfer station is on fire, control the third fire extinguishing device to extinguish the fire in the material storage area.

[0012] In combination with the first aspect of the present invention, in some embodiments, the third fire extinguishing device includes: a foam liquid tank; a foam pump, electrically connected to the controller, the inlet end of the foam pump is connected to the foam liquid tank; a foam pipe, the inlet end of the foam pipe is connected to the outlet end of the foam pump, and the foam pipe is arranged in the material storage area of ​​the transfer station.

[0013] In a second aspect, an embodiment of the present invention provides a method for controlling a fire protection system, which is applied to a fire protection system as described in any one of the first aspects, and the method includes: obtaining first fire information from the first detector; controlling the first fire extinguishing device based on the first fire information to extinguish or cool the conveyor belt.

[0014] One or more technical solutions provided by the embodiments of the present invention achieve at least the following technical effects or advantages:

[0015] A fire prevention system provided by an embodiment of the present invention is applied to a transfer station provided with a belt conveyor. The system includes: a first detector, which is arranged inside the dust cover of the belt conveyor and is used to generate first fire information, the first fire information is used to indicate whether the conveying belt of the belt conveyor is on fire, and the conveying belt is arranged inside the dust cover; a first fire extinguishing device, the first fire extinguishing device includes a first water pipe arranged inside the dust cover of the belt conveyor and laid along the conveying belt, and a plurality of spray holes are distributed on the first water pipe along the extension direction of the conveying belt; a controller, which is electrically connected to the first detector and the first fire extinguishing device, and the controller is used to: obtain the first fire information from the first detector, and control the first fire extinguishing device based on the first fire information to extinguish or cool the conveying belt. Since the first detector is arranged inside the dust cover of the belt conveyor, it is possible to accurately determine whether the conveying belt is on fire according to the first fire information. In the case of a fire on the conveying belt, the first fire extinguishing device can extinguish the fire on the conveying belt in time to prevent the fire from spreading, thereby realizing accurate detection of the fire and timely extinguishing of the fire. Therefore, the possibility of fire in the transfer station is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of a fire protection system in an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the connection of a fire extinguishing device, a detector and a controller in an embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the arrangement of the second fire extinguishing device and the third fire extinguishing device in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] Figure 1 Schematic diagram of the fire protection system in the embodiment of the present invention. Figure 1 As shown, an embodiment of the present invention provides a fire prevention system, which is applied to a transfer station equipped with a belt conveyor, and the system includes: a first detector 10, which is arranged inside the dust cover of the belt conveyor, and is used to generate first fire information, and the first fire information is used to indicate whether a transport belt of the belt conveyor is on fire, and the transport belt is arranged inside the dust cover; a first fire extinguishing device 20, and the first fire extinguishing device 20 includes a first water pipe which is arranged inside the dust cover of the belt conveyor and is laid along the transport belt, and a plurality of spray holes are distributed on the first water pipe along the extension direction of the transport belt; a controller 30, which is electrically connected to the first detector 10 and the first fire extinguishing device 20, and the controller 30 is used to: obtain the first fire information from the first detector 10, and control the first fire extinguishing device 20 based on the first fire information to extinguish or cool down the transport belt.

[0023] It should be noted that the spray hole of the first water pipe can be an atomizing opening. When it is necessary to extinguish a fire or cool down the conveyor belt, if water is sprayed directly, the materials on the conveyor belt may be damaged or even unusable. Therefore, the embodiment of the present invention stipulates that a plurality of atomizing openings are provided at different positions of the first water pipe, and the conveyor belt is extinguished or cooled down by atomizing water, thereby avoiding directly spraying water on the materials, thereby avoiding damage to the materials or even unusable. Therefore, the materials will not only not be damaged by fire, but also will not be damaged by excessive water flow, thereby improving the safety of the materials.

[0024] In some embodiments, the first detector 10 is a linear heat-sensing fire detector.

[0025] It should be noted that the linear temperature-sensing fire detector uses thermistor as the core component. Thermistor is a special resistance material that can rapidly change resistance as the temperature changes. When the ambient temperature around the detector is abnormally high, the resistance of the thermistor will decrease rapidly, thereby triggering the alarm device to ensure that the fire can be discovered in time at the early stage. Most importantly, the linear temperature-sensing fire detector is suitable for various places, including warehouses, factories, shopping malls, high-rise buildings, cultural relics protection units and homes. Regardless of whether the environment is humid, polluted or dusty, the detector can work with high reliability to ensure the accuracy and timeliness of fire detection. Therefore, since there is a lot of dust inside the dust cover, it is easy to cause the detector to fail. When a linear temperature-sensing fire detector is selected as the first detector 10, the interference of dust on the detector is avoided, and the accuracy of fire detection is improved.

[0026] In some embodiments, the distance between the first detector 10 and the transport belt is less than a preset first distance threshold, the distance between the first detector 10 and the roller of the belt conveyor is less than a preset second distance threshold, and the distance between the first detector 10 and the roller of the belt conveyor is less than a preset third distance threshold.

[0027] It should be noted that the distance between the first detector 10 and the conveying belt is less than the preset first distance threshold, indicating that the first detector 10 is located in the vicinity of the conveying belt. The distance between the first detector 10 and the roller of the belt conveyor is less than the preset second distance threshold, indicating that the first detector 10 is located in the vicinity of the roller. The distance between the first detector 10 and the roller of the belt conveyor is less than the preset third distance threshold, indicating that the first detector 10 is located in the vicinity of the roller. Among them, the first distance threshold can be any value from 0cm to 20cm, specifically 1cm. The second distance threshold can be any value from 0cm to 20cm, specifically 1cm. The third distance threshold can be any value from 0cm to 20cm, specifically 1cm. The number of first detectors 10 can be one or more.

[0028] It should be noted that during the operation of the belt conveyor, the rollers and idlers of the belt conveyor may have mechanical failures such as not rotating or rotating slowly. At this time, friction fire may occur between the transport belt and the rollers and idlers. If slippage occurs between the transport belt and the rollers, frictional heating may also occur, which in turn causes friction fire between the transport belt and the rollers and idlers. Since rollers and idlers are important causes of fire on transport belts, it is very necessary to detect the positions of the rollers and idlers. The embodiment of the present invention achieves accurate setting of the position of the detector by limiting the above-mentioned first distance threshold, second distance threshold and third distance threshold to improve detection accuracy.

[0029] In some embodiments, the first fire extinguishing device 20 may also include: a first fire water pump, electrically connected to the controller 30, and the inlet end of the first fire water pump is used to be connected to a water source; a first deluge valve group, electrically connected to the controller 30, and the inlet end of the first deluge valve group is connected to the outlet end of the first fire water pump, and the outlet end of the first deluge valve group is connected to the inlet end of the first water pipe.

[0030] It should be noted that the water source connected to the first fire pump can be a first fire pool, which can be set in a fire pump room to store fire water for fire fighting. The first fire pump can be set in a fire pump room to continuously supply water and ensure the fire fighting water pressure during fire fighting. The first deluge valve group can be set in the fire pump room to ensure that the valve is filled with water and the valve is empty, so as to ensure that the fire fighting water can reach the scene quickly and avoid the bursting of water pipes due to the low temperature in winter.

[0031] In some embodiments, the fire protection system may further include: a second detector 40, which is disposed on the roof of the transfer station and electrically connected to the controller 30, and the second detector 40 is an aspirating smoke fire detector, and / or a third detector 50, which is disposed on the roof of the transfer station and electrically connected to the controller 30, and the third detector 50 is a temperature-sensitive fire detector.

[0032] It should be noted that the aspirating smoke fire detector uses a pyrolysis ion analysis aspirating smoke fire detector. When there is a sign of fire in the transfer station, the increase in belt temperature will cause the belt to release decomposition ions, and the detector analysis system will analyze the belt decomposition ions. The temperature-sensitive fire detector is used to detect the temperature in the transfer station. When the set threshold is reached, it sends an alarm signal to the fire alarm controller 30. The dual alarm signals of the aspirating smoke fire detector and the temperature-sensitive fire detector can form an "AND" logic to start the automatic fire extinguishing system to extinguish the fire in the transfer station.

[0033] refer to Figure 2 As shown, Figure 2 FIG. 1 is a connection diagram of a fire extinguishing device, a detector and a controller in an embodiment of the present invention. Figure 3 As shown, Figure 3 It is a schematic diagram of the arrangement of the second fire extinguishing device and the third fire extinguishing device in an embodiment of the present invention, wherein the controller 30 can be divided into a first sub-controller 310 and a second sub-controller 320, the second sub-controller 320 can be used to obtain signals from the second detector 40 and the third detector 50, the second sub-controller 320 controls the second deluge valve group 620 according to the signal, and transmits the signal to the first sub-controller 310, and the first sub-controller 310 can control the foam pump 720 and the second fire water pump 610 according to the signal.

[0034] In some embodiments, a non-material warehouse area is also provided in the transfer station, and the fire protection system may further include: a second detector 40, which is arranged on the roof of the transfer station and is electrically connected to the controller 30, and is used to generate second fire information, and the second fire information is used to indicate whether a fire occurs in the transfer station; a third detector 50, which is arranged on the roof of the transfer station and is electrically connected to the controller 30, and is used to generate third fire information, and the third fire information is used to indicate whether a fire occurs in the transfer station, and the second detector 40 and the third detector 50 are of different types; a second fire extinguishing device 60, which is arranged in the non-material warehouse area and is electrically connected to the controller 30; the controller 30 is used to: if the second fire information and the third fire information both indicate that a fire occurs in the transfer station, control the second fire extinguishing device 60 to extinguish a fire in the non-material warehouse area.

[0035] In some embodiments, the second fire extinguishing device 60 may include: a second fire water pump 610, electrically connected to the controller 30, and the inlet end of the second fire water pump 610 is used to connect to a water source; a second deluge valve group 620, electrically connected to the controller 30, and the inlet end of the second deluge valve group 620 is connected to the outlet end of the second fire water pump 610; a second water pipe 630, and the inlet end of the second water pipe 630 is connected to the outlet end of the second deluge valve group 620, and the second water pipe 630 is arranged in a non-material storage area of ​​the transfer station, and a plurality of spray holes are distributed at different positions of the second water pipe 630.

[0036] It should be noted that the water source connected to the second fire pump 610 can be a second fire water tank 640. The second fire water tank 640 can be set in the fire pump room to store fire water for fire extinguishing. The second fire pump 610 can be set in the fire pump room to continuously supply water and ensure the fire extinguishing water pressure during fire extinguishing. The second deluge valve group 620 can be set in the fire pump room to ensure that the front of the valve is filled with water and the back of the valve is free of water, which can not only ensure that the water for fire extinguishing reaches the scene quickly, but also avoid the bursting of water pipes due to low temperatures in winter. There can be multiple second water pipes 630, which can be set in the transfer station at 200mm from the roof and 200mm from the wall, respectively. The distance between the two second water pipes 630 can be 2m. In addition, the spray hole of the second water pipe 630 can be an atomizing opening.

[0037] In some embodiments, a material storage area is also provided in the transfer station, and the fire protection system may further include: a second detector 40, which is disposed on the roof of the transfer station and is electrically connected to the controller 30, and is used to generate second fire information, wherein the second fire information is used to indicate whether a fire occurs in the transfer station; a third detector 50, which is disposed on the roof of the transfer station and is electrically connected to the controller 30, and is used to generate third fire information, wherein the third fire information is used to indicate whether a fire occurs in the transfer station, and the second detector 40 and the third detector 50 are of different types; a third fire extinguishing device 70, which is disposed in the material storage area and is electrically connected to the controller 30; the controller 30 is used to: if the second fire information and the third fire information both indicate that a fire occurs in the transfer station, control the third fire extinguishing device 70 to extinguish a fire in the material storage area.

[0038] In some embodiments, the third fire extinguishing device 70 may include: a foam liquid tank 710; a foam pump 720, which is electrically connected to the controller 30, and the inlet end of the foam pump 720 is connected to the foam liquid tank 710; a foam pipe 730, and the inlet end of the foam pipe 730 is connected to the outlet end of the foam pump 720, and the foam pipe 730 is arranged in the material storage area of ​​the transfer station.

[0039] It should be noted that the foam pump 720 can be arranged in the fire pump room, and is used to transport the foam liquid in the foam tank 710 to the foam pipe 730 in the material warehouse through a pipeline for fire extinguishing. The foam tank 710 can be arranged in the fire pump room, and is used to store foam liquid for fire extinguishing. In addition, there are many materials stored in the material warehouse area of ​​the transfer station. Once a safety hazard occurs in the material warehouse area, it will cause significant losses. If water is sprayed directly when a fire is detected, the materials will be damaged or even unusable. Therefore, the embodiment of the present invention limits the method of foam fire extinguishing, and the foam fire extinguisher can spray a large amount of carbon dioxide and foam, which can adhere to the combustibles, isolate the combustibles from the air, and achieve the purpose of fire extinguishing. Therefore, it avoids directly spraying water to extinguish the fire in the material warehouse area, and also avoids damaging the materials or even making them unusable. Therefore, the safety of the materials is improved.

[0040] It should be noted that in the production process, if the belt transporting high-temperature materials after cooling is poorly controlled or the equipment fails suddenly, the high-temperature materials exceeding the ignition point of the transport belt will ignite the transport belt in a short time, causing a belt fire. Since the fire occurred in the transfer station and the belt material warehouse, the workload of extinguishing the fire is extremely large, and the belt system is in operation. If the fire is not controlled in time, it will affect the belt of the next process, and even cause all belts that are connected in the process to catch fire, and even damage the belt corridor and other structures. Therefore, fire monitoring of the transport belt is particularly important. Although many companies that use belts for transportation now use fire detection alarms and automatic fire extinguishing devices, due to the requirements of the new environmental protection situation, the closed transport belt has brought an impact on the previous fire detection and automatic fire extinguishing, making it lose the fire detection alarm function, and then causing the automatic fire extinguishing system to fail to start normally, and lose the function of detecting and extinguishing fires. In addition, the closure of the belt limits the space available for setting up fire detection and automatic fire extinguishing devices. In order to better realize detection alarm and fire extinguishing, it is necessary to reasonably select detectors, fire extinguishing devices and other facilities to achieve early detection, early control, and early extinguishing of fires, and avoid the expansion of accidents and losses. Under the premise of not affecting environmental protection and dust reduction, the embodiments of the present invention realize the functions of advance warning of fire, forced stop of transport belts in case of fire, all-round automatic water spraying fire extinguishing in the transfer station area, automatic flooded foam fire extinguishing in the transfer station material warehouse, and avoiding affecting the belts of lower processes, etc., to make up for the loophole of ineffective fire prevention and control in existing transport belt transfer stations, and to curb and reduce the adverse effects such as casualties, property losses, etc. caused by uncontrolled fire in transport belt transfer stations.

[0041] It should be noted that in the prior art, the transport belt lacks automatic fire detection and automatic fire extinguishing facilities. When a fire occurs at the transport belt transfer station, only the production water pipes set in the transfer station can be used to extinguish the fire, and the fire fighting effect is poor. When the fire is very large, personnel cannot enter the transfer station to fight the fire. In order to better fight the fire or curb the expansion of the fire accident, the following measures are taken to deal with the fire: When an initial fire occurs, the fire extinguisher uses the fire extinguisher set in the transfer station to deal with it. When a fire occurs and the fire does not affect the personnel to enter the disposal, the fire extinguisher uses the production water joints laid in the transfer station to connect the water pipes for disposal. When a fire occurs and the fire affects the personnel to enter the disposal, the fire extinguisher uses the fire water pressure of the fire hydrants or fire trucks around the transfer station to break through the windows and deal with the fire. The defects of the above-mentioned prior art are as follows: the fire cannot be automatically detected, delaying the accurate confirmation of the fire. Miss the best time for fire fighting in the early stage. When a fire occurs but the fire does not affect the personnel to enter the disposal, the water source pressure of the fire fighting is small and the effect is poor. When a fire occurs and the fire is too severe for personnel to enter to deal with it, ground firefighters can only put out the fire blindly and cannot accurately put out the fire, which affects the fire handling.

[0042] A fire prevention system provided by an embodiment of the present invention is applied to a transfer station provided with a belt conveyor, and the system includes: a first detector 10, which is arranged inside the dust cover of the belt conveyor and is used to generate first fire information, and the first fire information is used to indicate whether the conveying belt of the belt conveyor is on fire, and the conveying belt is arranged inside the dust cover; a first fire extinguishing device 20, and the first fire extinguishing device 20 includes a first water pipe arranged inside the dust cover of the belt conveyor and laid along the conveying belt, and a plurality of spray holes are distributed on the first water pipe along the extension direction of the conveying belt; a controller 30, which is electrically connected to the first detector 10 and the first fire extinguishing device 20, and the controller 30 is used to: obtain the first fire information from the first detector 10, and control the first fire extinguishing device 20 based on the first fire information, so as to extinguish or cool down the conveying belt. Since the first detector 10 is arranged inside the dust cover of the belt conveyor, it is possible to accurately judge whether the conveying belt is on fire according to the first fire information. In the case of a fire on the transport belt, the first fire extinguishing device 20 can promptly extinguish the fire on the transport belt to prevent the fire from spreading, thereby accurately detecting the fire and promptly extinguishing the fire. Therefore, the possibility of a fire at the transfer station is reduced.

[0043] Based on the same inventive concept, an embodiment of the present invention provides a control method for a fire protection system, which is applied to a fire protection system. The method includes: obtaining first fire information from a first detector 10; and controlling a first fire extinguishing device 20 based on the first fire information to extinguish or cool down a transport belt.

[0044] In some embodiments, controlling the first fire extinguishing device 20 based on the first fire information may include: if the first fire information indicates that there is a risk of fire on the conveyor belt, controlling the first fire extinguishing device 20 to cool the conveyor belt; if the first fire information indicates that the conveyor belt has caught fire, controlling the first fire extinguishing device 20 to extinguish the fire on the conveyor belt.

[0045] In some embodiments, controlling the first fire extinguishing device 20 to cool the conveyor belt may include: controlling the opening of the first deluge valve group to be a first preset opening to cool the conveyor belt.

[0046] In some embodiments, controlling the first fire extinguishing device 20 to extinguish a fire on the conveyor belt may be: controlling the opening of the first deluge valve group to be a second preset opening to extinguish a fire on the conveyor belt, wherein the second preset opening is greater than the first preset opening.

[0047] It should be noted that the larger the opening of the first deluge valve group, the greater the water flow of the first water pipe. By distinguishing between the cooling demand and the fire extinguishing demand, the water flow size can be controlled, thereby avoiding the use of a larger water flow when the possibility of fire is low, thus avoiding the material from being damaged by water, thereby improving the safety of the material.

[0048] In some embodiments, the number of the first detector 10 is one, and the first fire information may include the current temperature of the conveyor belt. Then, the control method of the fire protection system may further include: if the current temperature of the conveyor belt is within a preset first temperature range, determining that the first fire information indicates that the conveyor belt is at risk of fire; if the current temperature of the conveyor belt is within a preset second temperature range, determining that the first fire information indicates that the conveyor belt has caught fire, wherein the lower limit value of the second temperature range is greater than the upper limit value of the first temperature range.

[0049] In some embodiments, there are multiple first detectors 10, and the first fire information may include multiple current temperatures of the conveyor belts detected by the multiple first detectors 10. Then, the control method of the fire protection system may further include: if each of the multiple current temperatures is within a preset first temperature range, it is determined that the first fire information indicates that there is a fire risk for the conveyor belt; if each of the multiple current temperatures is within a preset second temperature range, it is determined that the first fire information indicates that the conveyor belt has caught fire, wherein the lower limit value of the second temperature range is greater than the upper limit value of the first temperature range.

[0050] It should be noted that by setting up multiple first detectors 10, multiple current temperatures of the conveyor belt are obtained. Only when multiple current temperatures meet certain conditions is it determined whether the conveyor belt is on fire, thereby avoiding erroneous judgment when one detector detects an abnormality and improving the accuracy of fire judgment.

[0051] It should be understood that more implementation details of the control method of the fire protection system in the embodiment of the present invention refer to the aforementioned fire protection system, and for the sake of brevity of the specification, they will not be repeated here.

[0052] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A fire protection system, characterized in that: Applicable to a transfer station provided with a belt conveyor, the system comprises: a first detector, arranged inside the dust cover of the belt conveyor, for generating first fire information, wherein the first fire information is used to indicate whether a conveying belt of the belt conveyor is on fire, the conveying belt being arranged inside the dust cover; A first fire extinguishing device, the first fire extinguishing device comprising a first water pipe arranged inside a dust cover of the belt conveyor and laid along the conveyor belt, wherein a plurality of spray holes are distributed on the first water pipe along an extending direction of the conveyor belt; A controller is electrically connected to the first detector and the first fire extinguishing device, and is used to obtain first fire information from the first detector and control the first fire extinguishing device based on the first fire information to extinguish or cool the conveyor belt.

2. The fire protection system according to claim 1, characterized in that: The first detector is a linear heat-sensing fire detector.

3. The fire protection system according to claim 1, characterized in that: The distance between the first detector and the conveying belt is less than a preset first distance threshold, the distance between the first detector and the roller of the belt conveyor is less than a preset second distance threshold, and the distance between the first detector and the roller of the belt conveyor is less than a preset third distance threshold.

4. The fire protection system according to any one of claims 1 to 3, characterized in that: The first fire extinguishing device further comprises: A first fire water pump, electrically connected to the controller, wherein an inlet end of the first fire water pump is used to be connected to a water source; The first deluge valve group is electrically connected to the controller, the inlet end of the first deluge valve group is connected to the outlet end of the first fire water pump, and the outlet end of the first deluge valve group is connected to the inlet end of the first water pipe.

5. The fire protection system according to claim 4, characterized in that: Also includes: a second detector, which is disposed on the roof of the transfer station and is electrically connected to the controller, wherein the second detector is an aspirating smoke detector, and / or The third detector is arranged on the roof of the transfer station and is electrically connected to the controller. The third detector is a heat-sensitive fire detector.

6. The fire protection system according to claim 1, characterized in that The transfer station is also provided with a non-material storage area, and the fire protection system further includes: a second detector, disposed on the roof of the transfer station and electrically connected to the controller, for generating second fire information, wherein the second fire information is used to indicate whether the transfer station is on fire; a third detector, which is disposed on the roof of the transfer station and is electrically connected to the controller, and is used to generate third fire information, wherein the third fire information is used to indicate whether the transfer station is on fire, and the second detector and the third detector are of different types; A second fire extinguishing device, disposed in the non-material storage area and electrically connected to the controller; The controller is used to: if the second fire information and the third fire information both indicate that the transfer station is on fire, control the second fire extinguishing device to extinguish the fire in the non-material warehouse area.

7. The fire protection system according to claim 6, characterized in that The second fire extinguishing device comprises: A second fire water pump is electrically connected to the controller, and an inlet end of the second fire water pump is used to be connected to a water source; a second deluge valve group, electrically connected to the controller, wherein an inlet end of the second deluge valve group is connected to an outlet end of the second fire water pump; A second water pipe, wherein the inlet end of the second water pipe is connected to the outlet end of the second sprinkler valve group, the second water pipe is arranged in the non-material storage area of ​​the transfer station, and a plurality of spray holes are distributed at different positions of the second water pipe.

8. The fire protection system according to claim 1, characterized in that The transfer station is also provided with a material storage area, and the fire protection system also includes: a second detector, disposed on the roof of the transfer station and electrically connected to the controller, for generating second fire information, wherein the second fire information is used to indicate whether the transfer station is on fire; a third detector, which is disposed on the roof of the transfer station and is electrically connected to the controller, and is used to generate third fire information, wherein the third fire information is used to indicate whether the transfer station is on fire, and the second detector and the third detector are of different types; A third fire extinguishing device, arranged in the material storage area and electrically connected to the controller; The controller is used to: if the second fire information and the third fire information both indicate that the transfer station is on fire, control the third fire extinguishing device to extinguish the fire in the material warehouse area.

9. The fire protection system according to claim 8, characterized in that: The third fire extinguishing device comprises: Foam tank; A foam pump is electrically connected to the controller, and an inlet end of the foam pump is connected to the foam liquid tank; A foam pipe, the inlet end of which is connected to the outlet end of the foam pump, and the foam pipe is arranged in the material storage area of ​​the transfer station.

10. A method for controlling a fire protection system, characterized in that: Applied to the fire protection system according to any one of claims 1 to 9, the method comprises: Acquiring first fire information from the first detector; The first fire extinguishing device is controlled based on the first fire information to extinguish the fire or cool down the conveyor belt.

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