Non-stored-pressure fire extinguishing device with liquid level monitoring and spraying feedback functions

Abstract

The utility model provides a non-stored pressure type fire extinguishing device with liquid level monitoring and spraying feedback, which relates to the technical field of fire fighting and extinguishing, and comprises a tank body, two ends of the tank body are hollow and are respectively and fixedly provided with an upper end cover and a lower end cover, and the inner wall of the cavity of the tank body is in sliding connection with a separator for separating a fire extinguishing medium on one side of the cavity of the tank body; a fire extinguishing medium is arranged in a cavity between the upper end cover and the separator; the feedback assembly outputs a spraying feedback signal through connection and disconnection of a first connecting plug and a second connecting plug; the liquid level detection assembly is used for receiving a liquid level signal of the fire extinguishing medium; the feedback assembly detects whether the separator and the driving cover move or not in real time, and effectively monitors whether the fire extinguishing medium in the tank body is sprayed or not; the liquid level detection assembly can monitor the liquid level height in the fire extinguishing device in real time, and the reliability of the non-stored pressure type fire extinguishing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting and extinguishing, in particular to a non-pressure storage type fire extinguishing device with liquid level monitoring and spraying feedback. Background Art

[0002] Non-pressure-storage fire extinguishing devices use gaseous fire extinguishing agents, without the need for stored pressure. They extinguish fires by releasing a high concentration of extinguishing agent within the extinguishing area, suffocating the fire source or reducing its temperature. They offer advantages such as rapid fire extinguishing, no residue, and no damage to equipment, making them suitable for fire protection in a variety of locations and equipment.

[0003] In the prior art, since the liquid fire extinguishing medium is stored inside the tank, it is impossible to check the current status of the liquid fire extinguishing medium. The pressure-stored fire extinguishing device can be used to check whether the fire extinguishing device is leaking by observing the pressure gauge, but the non-pressure-stored fire extinguishing device has no internal pressure, so it is impossible to promptly confirm whether the fire extinguishing device is working properly. If the non-pressure-stored fire extinguishing device is mistakenly triggered to spray, personnel cannot detect it, nor can they know whether the fire extinguishing medium in the tank has been sprayed, resulting in a waste of resources. Utility Model Content

[0004] To solve the above technical problems, the present invention utilizes a feedback component to detect the movement of the partition and the drive cover in real time, and a liquid level detection component to monitor the liquid level in the fire extinguishing device in real time. The specific technical solution is as follows:

[0005] A non-pressure-storage fire extinguishing device with liquid level monitoring and spraying feedback comprises a tank body, both ends of which are hollow and fixedly provided with an upper end cover and a lower end cover, a partition slidably connected to the inner wall of the tank body cavity for separating the fire extinguishing medium between the tank body cavity and the upper end cover, and the cavity between the upper end cover and the partition is provided with the fire extinguishing medium; a feedback component, comprising a first plug connector and a second plug connector that cooperate with each other, the first plug connector being installed on a side of the partition away from the fire extinguishing medium, and the second plug connector being installed on a side of the lower end cover located inside the tank body, and a spraying feedback signal being output by connecting and disconnecting the first plug connector and the second plug connector; and a liquid level detection component for receiving the ultrasonic wave emitted by the component and the liquid level signal reflected by the liquid level of the fire extinguishing medium.

[0006] Preferably, the second plug connector is provided with a connecting groove, and the first plug connector is tightly connected to the second plug connector through the connecting groove.

[0007] Preferably, the second plug connector is fixedly mounted on the side of the lower end cover facing the partition.

[0008] Preferably, the upper end cover is provided with a release port for discharging the fire extinguishing medium.

[0009] Preferably, the liquid level detection assembly is further provided with a warning light which is turned on or off according to the liquid level signal.

[0010] Preferably, the lower end cover is provided with a driving device for pushing the partition to move toward the upper end cover, and the outer end of the lower end cover is provided with a signal terminal for receiving a start-up driving device and a feedback component.

[0011] It can be seen from the above technical solutions that the present invention has the following beneficial effects:

[0012] When the fire extinguishing device is not spraying, the present invention uses a feedback component to detect in real time whether the separator and the drive cover are moving, which can effectively monitor whether the fire extinguishing medium in the tank is being sprayed. It also ensures that personnel can confirm that the fire extinguishing device is working properly in a timely manner to avoid the non-pressure storage fire extinguishing device from accidentally triggering the spraying, which would waste resources when personnel are unable to detect. It effectively monitors whether the fire extinguishing device is spraying. The liquid level detection component can monitor the liquid level in the fire extinguishing device in real time. If there is an abnormal change in the liquid level or leakage, an alarm can be issued in time. This reduces the difficulty of fire extinguishing device maintenance and improves the reliability of non-pressure storage fire extinguishing devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model before the fire extinguishing medium is sprayed;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model after the fire extinguishing medium is sprayed;

[0015] Figure 3 This is a schematic diagram of the exploded structure of the plug connector 1 and the plug connector 2 of the utility model;

[0016] Figure 4 For this utility model Figure 3 Schematic diagram of the cross-sectional structure of AA.

[0017] In the figure: 1. Tank body; 2. Upper end cover; 3. Lower end cover; 4. Separator; 5. Plug connector 1; 6. Plug connector 2; 7. Liquid level detection assembly; 8. Fire extinguishing medium; 9. Feedback assembly. DETAILED DESCRIPTION

[0018] The following is a detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. Before describing in detail the technical solutions of each embodiment of the present invention, the nouns and terms involved are explained. In this specification, components with the same name or the same number represent similar or identical structures and are for illustrative purposes only.

[0019] like Figure 1 and Figure 2As shown, a non-pressure-storage fire extinguishing device with liquid level monitoring and spray feedback includes a tank body 1 sealed at both ends and provided with a cavity for accommodating a fire extinguishing medium 8. The inner wall of the tank body 1 cavity is slidably connected to a partition 4 that separates the fire extinguishing medium 8 between the tank body 1 cavity and the upper end cover 2. One end of a feedback component 9 is connected to the partition 4, and the other end is connected to the lower end cover 3. A driving device is also provided in the lower end cover 3. The feedback component 9 is used to detect the movement state of the partition 4. The driving device drives the fire extinguishing medium 8 to be discharged from the cavity through the partition 4. The fire extinguishing device has not yet been activated, and the partition 4 is close to the lower end cover of the tank body 1. At one end of the tank 3, the fire extinguishing medium 8 almost fills the entire cavity of the tank body 1. When the driving device drives the partition 4 to move along the axial direction of the tank body 1, the movement of the partition 4 squeezes the fire extinguishing medium 8, so that the fire extinguishing medium 8 is gradually sprayed from the end of the tank body 1. The spraying of the fire extinguishing medium 8 realizes fire extinguishing in a specific area. The feedback component 9 detects the position change of the partition 4 in real time. If the driving device drives the partition 4 to move, the feedback component 9 receives the movement change of the partition 4, thereby detecting that the fire extinguishing device has realized the spraying operation, and promptly reminding personnel to avoid accidental touch or late detection, which leads to waste of resources.

[0020] As an implementation method in this embodiment, Figure 1 and Figure 2 As shown, a lower end cover 3 is installed at one end of the tank body 1, and the plug connector 2 6 and the drive device are both located at the lower end cover 3; an upper end cover 2 is installed at the end of the tank body 1 opposite to the lower end cover 3, and the upper end cover 2 is provided with a release port for discharging the fire extinguishing medium 8, wherein the release port can be provided on the upper end cover 2, and can also be provided on the side wall of the tank body 1 located around the upper end cover 2, and can be adjusted according to those skilled in the art. The release port is provided with a bursting disc, which is used to block the fire extinguishing medium 8 in the cavity of the tank body 1, reducing the risk of leakage of the fire extinguishing medium 8, until the partition 4 squeezes the fire extinguishing medium 8, the pressure of the fire extinguishing medium 8 on the bursting disc increases, and after breaking through the pressure value of the bursting disc, the bursting disc is damaged, and the fire extinguishing medium 8 can be ejected from the release port, thereby realizing the fire extinguishing operation in a specific area.

[0021] The partition 4 includes but is not limited to a piston, a slider, a push plate or a pressing piece, which moves along the axis of the tank body 1 to squeeze the fire extinguishing medium 8 and squeeze the fire extinguishing medium 8 outward.

[0022] The driving device can use a gas-generating device to inflate the space between the partition 4 and the lower end cover 3, so that the gas increases the pressure on the partition 4, causing the partition 4 to pressurize the fire extinguishing medium 8 to achieve spraying; in addition to the above-mentioned inflation, the driving device can also be a telescopic rod or a spring rod to push the partition 4 toward the upper end cover 2. The process is that the telescopic end of the telescopic rod or the spring rod extends from the lower end cover 3, passes through the lower end cover 3 and collides with the partition 4. As the telescopic end of the telescopic rod or the spring rod extends, it gradually drives the partition 4 to squeeze and spray the fire extinguishing medium 8 along the axial direction of the tank body 1. Among them, the gas-generating device preferably uses a gas generator.

[0023] As an implementation method in this embodiment, Figure 1 and Figure 2 As shown, the feedback component 9 includes a switch component arranged on the opposite side walls of the lower end cover 3 and the partition 4. If the partition 4 and the lower end cover 3 are close to each other and the switch component between the partition 4 and the lower end cover 3 is triggered, it means that the partition 4 has not yet moved in the tank body 1, that is, the fire extinguishing medium 8 has not yet been sprayed. The output of the feedback signal is realized by the switch component. A signal terminal is provided at the outer end of the lower end cover 3 for receiving signals from the drive device and the feedback component 9. It can be connected to an external controller to realize the start and stop of the drive device and the display of the signal of the feedback component 9.

[0024] As an embodiment of the upper switch member, Figures 1-4 As shown, the switch assembly includes a first plug connector 5 and a second plug connector 6, respectively fixed to the separator 4 and the lower end cover 3. When plugged together, the first plug connector 5 and the second plug connector 6 are electrically conductive. The first plug connector 5 is threadedly connected to the bottom of the separator 4, while the second plug connector 6 is fixed to the end face of the lower end cover 3. The second plug connector 6 is provided with a connecting groove, through which the first plug connector 5 and the second plug connector 6 are tightly connected. The feedback assembly 9 outputs the feedback signal by connecting and disconnecting the first plug connector 5 and the second plug connector 6. Preferably, two sets of the first plug connector 5 and the second plug connector 6 are provided, connecting cable A and cable B respectively. The connection and disconnection between cables A and B realize the signal output.

[0025] When the fire extinguishing device is not sprayed, the plug connector 1 5 and the plug connector 2 6 in the feedback assembly 9 are connected to each other. At this time, the cable A and the cable B in the lower end cover 3 are in a conductive state; when the fire extinguishing device is sprayed, the plug connector 1 5 moves radially with the partition 4. At this time, the plug connector 1 5 is away from the plug connector 2 6. At this time, the cable A and the cable B in the lower end cover 3 are in a disconnected state.

[0026] In addition to the above detection method, the switch component includes a push switch installed on the separator 4 or the lower end cover 3. When the separator 4 is located at the lower end cover 3, the push switch between the separator 4 and the lower end cover 3 is always in a pressed state. The switch can be in a normally closed or open state. The state can be set by the user until the separator 4 and the lower end cover 3 are separated from each other, the push switch is no longer under pressure, and its output state changes. The output of the feedback signal is realized by connecting and disconnecting the push switch, thereby realizing the state detection of the fire extinguishing device spraying.

[0027] The switch element can also use a photoelectric sensor to sense the position of the separator 4 and the lower end cover 3 by using the contact or disconnection of light. When the separator 4 and the lower end cover 3 are in contact, the photoelectric sensor receives a light signal. When the two separate, the light signal is interrupted, indicating that the separator 4 and the lower end cover 3 are separated. The output of the feedback signal is achieved by receiving and interrupting the light signal.

[0028] As an implementation method in this embodiment, a liquid level detection component 7 for detecting the liquid level of the fire extinguishing medium 8 is fixedly installed on the side wall of the upper end cover 2, which can realize real-time monitoring of the liquid level height of the fire extinguishing medium 8 in the fire extinguishing device. If an abnormal liquid level change occurs or a leakage occurs, an alarm can be issued in time, that is, a switch signal or a voltage signal is output.

[0029] When the fire extinguishing medium 8 in the fire extinguishing device tank body 1 leaks, the liquid level detection component 7 receives the ultrasonic wave emitted by it and the detection signal reflected by the liquid level of the fire extinguishing medium 8, and compares the detection signal with the sound wave signal reflected by the initial liquid level of the fire extinguishing medium 8, that is, the sound wave signal reflected when there is no leakage. Once it exceeds the preset value, the sound wave signal is converted into an electrical signal or a switch signal to alarm, that is, the liquid level detection component 7 sends an alarm signal and turns on the warning light through the alarm signal, thereby detecting whether the fire extinguishing device is leaking.

[0030] The above-described embodiments are merely descriptions of preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A non-pressure storage fire extinguishing device with liquid level monitoring and spray feedback, characterized in that: include: The tank body (1) is hollow at both ends and is respectively fixedly mounted with an upper end cover (2) and a lower end cover (3); a partition (4) is slidably connected to the inner wall of the tank body (1) cavity to separate the fire extinguishing medium (8) between the tank body (1) cavity and the upper end cover (2); and the cavity between the upper end cover (2) and the partition (4) is provided with the fire extinguishing medium (8); A feedback assembly (9), comprising a plug connector 1 (5) and a plug connector 2 (6) that cooperate with each other, wherein the plug connector 1 (5) is installed on a side of the partition (4) away from the fire extinguishing medium (8), and the plug connector 2 (6) is installed on a side of the lower end cover (3) located inside the tank body (1), and a spraying feedback signal is output by connecting and disconnecting the plug connector 1 (5) and the plug connector 2 (6); and The liquid level detection component (7) receives the ultrasonic wave emitted by it and the liquid level signal reflected by the liquid level of the fire extinguishing medium (8).

2. The non-pressure storage fire extinguishing device with liquid level monitoring and spraying feedback according to claim 1 is characterized in that: The second plug connector (6) is provided with a connection groove, and the first plug connector (5) is tightly connected to the second plug connector (6) through the connection groove.

3. The non-pressure storage fire extinguishing device with liquid level monitoring and spraying feedback according to claim 1 is characterized in that: The second plug connector (6) is fixedly mounted on a side of the lower end cover (3) facing the partition (4).

4. The non-pressure storage fire extinguishing device with liquid level monitoring and spraying feedback according to claim 1 is characterized in that: The separator (4) is one of a piston, a slider, a push plate or a pressing sheet.

5. The non-pressure storage fire extinguishing device with liquid level monitoring and spraying feedback according to claim 1 is characterized in that: The upper end cover (2) is provided with a release port for discharging the fire extinguishing medium (8).

6. The non-pressure storage fire extinguishing device with liquid level monitoring and spraying feedback according to claim 5 is characterized in that: The release port is provided with a bursting disc.

7. The non-pressure storage fire extinguishing device with liquid level monitoring and spraying feedback according to claim 1 is characterized in that: The liquid level detection component (7) is also provided with a warning light which is turned on or off according to the liquid level signal.

8. The non-pressure storage fire extinguishing device with liquid level monitoring and spraying feedback according to claim 1 is characterized in that: The lower end cover (3) is provided with a driving device for pushing the partition (4) to move toward the upper end cover (2), and the outer end of the lower end cover (3) is provided with a signal terminal for receiving the start driving device and the feedback component (9).

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