Water immersion type fire extinguishing device for charging system of automated guided vehicle

Abstract

The invention relates to a water immersion type fire extinguishing device for a charging system of an automatic guided vehicle, which comprises a plurality of safety protection covers, an alarm indicating lamp is arranged on each of the front outer side walls, a charging pile is arranged on the rear inner side wall, a liftable steel plate is arranged on the bottom ground, a lithium battery is arranged on the liftable steel plate, and a pit is arranged below the liftable steel plate. And a fire-fighting water inlet is also formed in the fire-fighting water tank and is used for connecting a fire-fighting water pipeline in a workshop. The inner side wall of the top of each safety protection cover is provided with a lighting lamp, a temperature sensing fire detector and a smoke and fire sensing detector. According to the water immersion type fire extinguishing device, an initial fire disaster after a lithium battery is on fire can be limited within a small range, the smoke sensing fire disaster detector rapidly sends out a first set of alarm signals to remind nearby personnel of the fire disaster, and charging of the carrying vehicle is cut off immediately; and after the temperature-sensitive fire detector sends out a second group of alarm signals, the electromagnetic valve can be started to introduce fire-fighting water into the pit, so that the damage to the lithium battery caused by false alarm of the system can be effectively reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic fire fighting and extinguishing, and in particular relates to a water immersion type fire extinguishing device for an automatic guided vehicle charging system. Background Art

[0002] At present, the main way to charge lithium batteries for automated guided vehicles on the market is to set up charging piles in buildings, and the vehicles automatically run to the charging piles to charge the lithium batteries. However, this method does not have any protective measures during the charging process, is difficult to control in the event of a fire, and conventional fire extinguishing methods cannot effectively extinguish the fire, posing a major safety hazard.

[0003] Therefore, it is necessary to develop a new type of automatic fire-fighting and fire-extinguishing system that can not only meet the charging requirements of the lithium batteries of automated guided vehicles, but also control the risks during the charging process within a limited range and quickly extinguish the fire, so as to achieve the purpose of satisfying the use function, reducing the risk of fire spread, and achieving the goal of safe operation and production. Summary of the invention

[0004] The purpose of the present invention is to provide a water immersion fire extinguishing device for an automatic guided vehicle charging system to solve the problem of independent and automatic fire control, automatic alarm, fire extinguishing and control of the danger range.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A water-immersion fire extinguishing device for an automatic guided vehicle charging system comprises a plurality of safety shields arranged in parallel to form a plurality of charging rooms; an alarm indicator light is installed on the front outer side wall of each safety shield, and an observation window is also installed; a charging pile is installed on the rear inner side wall of each safety shield; a lighting fixture and a group of fire detectors with detection and alarm functions are installed on the top inner side wall of each safety shield, and each group of fire detectors includes a temperature-sensing fire detector and a smoke-sensing fire detector; a liftable steel plate is installed on the bottom ground of each safety shield, on which a lithium battery is placed, a pit is arranged under the liftable steel plate, a guide rail for the liftable steel plate is arranged inside, and a fire water inlet is also installed for connecting a workshop fire water pipeline; the liftable steel plate can be lowered to the bottom of the pit along the guide rail, and after the liftable steel plate and the lithium battery are lowered to the bottom of the pit, the fire water inlet is opened and filled with water to extinguish the lithium battery;

[0007] The smoke fire detector is connected to the charging pile control box, and can send a first set of alarm signals to the charging pile control box after detecting smoke; the charging pile control box is connected to the pop-up device of the charging port, and can send a signal for the charging plug of the transport vehicle to be ejected by the pop-up device of the charging port; the charging pile control box is also connected to the alarm controller through an alarm signal line, and the charging cut-off feedback signal is transmitted to the charging pile control box and then to the alarm controller; the alarm controller is connected to the hydraulic device control box, and can send an alarm signal to the pit hydraulic device control box; after receiving the signal, the hydraulic device control box can trigger the hydraulic device to lower the hydraulic rod, so that the movable steel cover and the lithium battery of the burning transport vehicle can be lowered to the bottom of the pit; the temperature fire detector is connected to the solenoid valve, and when the temperature reaches 60°C, the temperature detector sends a second set of alarm signals, triggers the solenoid valve, opens the fire-fighting pipe, and the fire-fighting water enters the pit to soak the lithium battery and extinguish the fire.

[0008] Furthermore, the top and side walls of each safety shield are provided with fireproof partitions with a fire resistance limit of ≥2.0h.

[0009] Furthermore, the fireproof partition is made of glass magnesium board.

[0010] Furthermore, there are three safety shields.

[0011] Further, the observation window is made of fireproof glass.

[0012] Furthermore, the liftable steel plate is a movable steel cover plate, which is connected to a hydraulic device, and the hydraulic device can push the movable steel cover plate to move up and down.

[0013] Furthermore, the hydraulic device is composed of a hydraulic pump and a hydraulic movable rod connected to it; the hydraulic pump is buried in the lower part of the pit, the hydraulic movable rod is located in the pit, and a movable steel cover is arranged on it; when there is no fire, the hydraulic movable rod supports the movable steel cover and the automatic transport vehicle above; the hydraulic device is connected to the hydraulic device control box, and the hydraulic device is controlled by the hydraulic device control box.

[0014] Furthermore, the depth of the pit is 0.8-1.0m.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Compared with the existing charging method without fire prevention measures, the present invention can limit the initial fire after the lithium battery catches fire to a smaller range. The smoke fire detector quickly sends out the first set of alarm signals to alert nearby personnel of the fire and immediately cuts off the charging of the transport vehicle. The temperature fire detector sends out the second set of alarm signals before the solenoid valve is activated to introduce fire water into the pit, which can effectively reduce the damage to the lithium battery caused by false alarms of the system and is consistent with the fire safety concept advocated by national policies. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the position of a water immersion fire extinguishing device for an automated guided vehicle charging system according to the present invention;

[0019] Figure 2 A schematic cross-sectional view of a water immersion fire extinguishing device for an automated guided vehicle charging system;

[0020] Figure 3 A schematic diagram of the structure of a water immersion fire extinguishing device for an automated guided vehicle charging system;

[0021] Figure 4a-4c A partial schematic diagram of a water immersion fire extinguishing device for an automated guided vehicle charging system. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with embodiments:

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] The water immersion fire extinguishing device of the automatic guided vehicle charging system of the present invention comprises a plurality of safety shields, which are arranged in parallel to form a plurality of charging rooms, and the top and side walls of each safety shield are made of fireproof partitions with a fire resistance limit of ≥2.0h, and the fireproof partitions are made of glass magnesium boards. Specifically, in the present invention, there are three safety shields.

[0026] An alarm indicator light is installed on the front outer side wall of each safety protection cover, and an observation window made of fireproof glass is also installed on the front outer side wall.

[0027] A charging pile is installed on the rear inner wall of each safety protection cover.

[0028] A liftable steel plate is installed on the bottom of each safety shield, on which a lithium battery is placed, and a pit is set below the liftable steel plate, in which a guide rail for the liftable steel plate is set, and a fire water inlet is also installed for connecting the workshop fire water pipeline. The liftable steel plate can be lowered to the bottom of the pit along the guide rail. After the liftable steel plate and the lithium battery are lowered to the bottom of the pit, the fire water inlet is opened and filled with water to extinguish the fire of the lithium battery.

[0029] The top inner side wall of each safety protection cover is provided with a lighting fixture and a group of fire detectors with detection and alarm functions. Each group of fire detectors includes a temperature-sensing fire detector and a smoke-sensing fire detector.

[0030] The smoke fire detector is connected to the charging pile control box, and can send a first set of alarm signals to the charging pile control box after detecting smoke. The charging pile control box is connected to the pop-up device of the charging port, and can send a signal for the charging plug of the transport vehicle to be ejected by the pop-up device of the charging port. The charging pile control box is also connected to the alarm controller through an alarm signal line, and the charging cut-off feedback signal is transmitted to the charging pile control box and then to the alarm controller. The alarm controller is connected to the hydraulic device control box, and can send an alarm signal to the pit hydraulic device control box. After receiving the signal, the hydraulic device control box can trigger the hydraulic device to lower the hydraulic rod, so that the movable steel cover and the lithium battery of the burning transport vehicle can be lowered to the bottom of the pit.

[0031] The temperature-sensitive fire detector is connected to the electromagnetic valve. When the temperature reaches 60°C, the temperature-sensitive detector sends out a second set of alarm signals, triggering the electromagnetic valve, opening the fire-fighting pipe, and allowing fire-fighting water to enter the pit to soak the lithium battery and extinguish the fire.

[0032] The liftable steel plate is a movable steel cover plate, which is connected to a hydraulic device, and the hydraulic device can push the movable steel cover plate to move up and down.

[0033] Specifically, the hydraulic device is composed of a hydraulic pump and a hydraulic movable rod connected thereto. The hydraulic pump is buried in the lower part of the pit, and the hydraulic movable rod is located in the pit, on which a movable steel cover is arranged. When there is no fire, the hydraulic movable rod supports the movable steel cover and the automatic transport vehicle above. The hydraulic device is connected to a hydraulic device control box, and the hydraulic device is controlled by the hydraulic device control box.

[0034] In the present invention, after receiving the first set of alarm signals from the smoke fire detector, the hydraulic rod is released, and the transport vehicle with the burning lithium battery is slowly lowered to the bottom of the pit by using the movable steel cover and the power of the automatic transport vehicle. The corresponding fire sound and light alarm device outside the charging room door sends an alarm signal. After receiving the second set of alarm signals from the temperature fire detector, the solenoid valve opens the valve, and at the same time starts the corresponding fire water pump, so that the water fills the pit according to the preset height, and the burning lithium battery is immersed in the water to achieve the fire extinguishing function.

[0035] The water immersion fire extinguishing device of the automatic guided vehicle charging system of the present invention can control the lithium battery fire within a smaller range and extinguish the fire quickly, and has the functions of alarm, fire extinguishing, fire isolation and the like.

[0036] Specifically, if a fire occurs while the lithium battery is charging, the safety shield will limit the fire to the compartment. After the smoke detector detects the smoke, it will first send out the first set of alarm signals. The alarm signals are first transmitted to the charging pile control box. The control box sends out a signal that the charging plug of the transporter is ejected. The transporter is ejected by the ejection device of the charging port, thereby cutting off the charging. The charging cut-off feedback signal is transmitted to the control box and transmitted to the alarm controller through the alarm signal line. Then the alarm controller sends an alarm signal to the pit hydraulic device control box. After receiving the signal, the hydraulic device control box triggers the hydraulic device to lower the hydraulic rod, which can lower the movable steel cover and the lithium battery of the burning transporter to the bottom of the pit. At the same time, the fire sound and light alarm sends an alarm signal. When the temperature detector detects that the temperature reaches 60°C, the solenoid valve is triggered, the fire pipe is opened, and the fire water enters the pit to soak the battery and extinguish the fire. As an automatic fire extinguishing device, the fire signal is connected to the fire alarm module box near the charging pile, and an on-site display device is set to facilitate personnel to check and understand the fire in time. The alarm signal is uniformly uploaded to the alarm host of the fire control center of the whole plant.

[0037] In the present invention, the fire water can be triggered to enter the pit only after receiving two sets of alarm signals, which can effectively prevent the loss caused by the false alarm of the smoke fire detector.

[0038] The above devices limit the danger of burning lithium batteries to a certain area and promptly alarm and extinguish the fire, thereby improving the safety performance of the factory building, which can meet the logistics needs of production and the fire safety needs, and reduce the risks in the production process.

[0039] Specifically, the depth of the pit is 0.8-1.0m.

[0040] like Figure 1 As shown, the position of the lithium battery of the automated guided vehicle and the safety cover during charging is schematically illustrated. Placing the lithium battery in the protective cover during charging can effectively control the spread of fire.

[0041] like Figure 2The figure shows a cross-sectional view of the fire extinguishing device. The temperature fire detector and the smoke fire detector are located on the top of the safety protection cover, and the pit is located under the safety protection cover. After the smoke fire detector detects smoke, it first sends out the first set of alarm signals, cuts off the charging device of the transport vehicle, and automatically ejects the transport vehicle to the position of the movable steel cover, triggering the hydraulic device to lower the hydraulic rod, and the movable steel cover lowers the burning lithium battery to the bottom of the pit.

[0042] like Figure 3 The figure shows the structural cross section of the fire extinguishing device. The fire-fighting pipe is connected to the water supply pipe of the fire hydrant. The end is controlled by a solenoid valve. After receiving the alarm signal of the temperature detector, the solenoid valve opens to inject water to soak the battery to extinguish the fire.

[0043] The dimensions of the charging room and the observation window above it, such as Figure 4a-4c shown.

[0044] Compared with the existing charging method without fire prevention measures, the present invention can limit the initial fire after the battery catches fire to a smaller range. The smoke detector quickly sends out the first set of alarm signals to alert nearby people to the fire. The temperature detector sends out the second set of alarm signals before the solenoid valve is activated to introduce fire water into the pit. This can effectively reduce the damage to the battery caused by false alarms of the system, which is consistent with the fire safety concept advocated by national policies.

[0045] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A water immersion fire extinguishing device for an automatic guided vehicle charging system, characterized in that: It comprises a plurality of safety shields arranged in parallel to form a plurality of charging rooms; an alarm indicator light is installed on the front outer side wall of each safety shield, and an observation window is also installed; a charging pile is installed on the rear inner side wall of each safety shield; a lighting fixture and a group of fire detectors with detection and alarm functions are installed on the top inner side wall of each safety shield, and each group of fire detectors includes a temperature-sensing fire detector and a smoke-sensing fire detector; a liftable steel plate is installed on the bottom ground of each safety shield, on which a lithium battery is placed, and a pit is arranged under the liftable steel plate, in which a guide rail for the liftable steel plate is arranged, and a fire water inlet is also installed for connecting the fire water pipe of the workshop; the liftable steel plate can be lowered to the bottom of the pit along the guide rail, and after the liftable steel plate and the lithium battery are lowered to the bottom of the pit, the fire water inlet is opened and filled with water to extinguish the fire of the lithium battery; The smoke fire detector is connected to the charging pile control box, and can send a first set of alarm signals to the charging pile control box after detecting smoke; the charging pile control box is connected to the pop-up device of the charging port, and can send a signal for the charging plug of the transport vehicle to be ejected by the pop-up device of the charging port; the charging pile control box is also connected to the alarm controller through an alarm signal line, and the charging cut-off feedback signal is transmitted to the charging pile control box and then to the alarm controller; the alarm controller is connected to the hydraulic device control box, and can send an alarm signal to the pit hydraulic device control box; after receiving the signal, the hydraulic device control box can trigger the hydraulic device to lower the hydraulic rod, so that the movable steel cover and the lithium battery of the burning transport vehicle can be lowered to the bottom of the pit; the temperature fire detector is connected to the solenoid valve, and when the temperature reaches 60°C, the temperature detector sends a second set of alarm signals, triggers the solenoid valve, opens the fire-fighting pipe, and the fire-fighting water enters the pit to soak the lithium battery and extinguish the fire.

2. The water immersion fire extinguishing device of the charging system of the automated guided vehicle according to claim 1, characterized in that: The top and side walls of each safety shield are equipped with fireproof partitions with a fire resistance limit of ≥2.0h.

3. The water immersion fire extinguishing device of the charging system of the automated guided vehicle according to claim 2, characterized in that: The fireproof partition is made of glass magnesium board.

4. The water immersion fire extinguishing device of the charging system of an automated guided vehicle according to claim 1, characterized in that: There are 3 safety shields.

5. The water immersion fire extinguishing device of the charging system of an automated guided vehicle according to claim 1, characterized in that: The observation window is made of fire-resistant glass.

6. The water immersion fire extinguishing device of the charging system of an automated guided vehicle according to claim 1, characterized in that: The liftable steel plate is a movable steel cover plate, which is connected to a hydraulic device, and the hydraulic device can push the movable steel cover plate to move up and down.

7. The water immersion fire extinguishing device of the charging system of the automated guided vehicle according to claim 1, characterized in that: The hydraulic device consists of a hydraulic pump and a hydraulic movable rod connected to it; the hydraulic pump is buried in the lower part of the pit, the hydraulic movable rod is located in the pit, and a movable steel cover is arranged on it; when there is no fire, the hydraulic movable rod supports the movable steel cover and the automatic transport vehicle above; the hydraulic device is connected to the hydraulic device control box, and the hydraulic device is controlled by the hydraulic device control box.

8. The water immersion fire extinguishing device of the charging system of an automated guided vehicle according to claim 1, characterized in that: The depth of the pit is 0.8-1.0m.

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