Water mist automatic fire extinguishing system built in UPS (Uninterrupted Power Supply) control cabinet

Abstract

The utility model discloses a water mist automatic fire extinguishing system built in a UPS (Uninterrupted Power Supply) control cabinet. The water mist automatic fire extinguishing system comprises a bottle storage frame, a compressed gas bottle, a pressure reducing valve, a water storage tank, a filter, an electromagnetic valve, a collecting pipe, a water mist nozzle and a temperature-sensing and smoke-sensing detector, the gas storage tank, the water storage tank, the pressure reducing valve, the filter and the electromagnetic valve are all integrated in the bottle storage frame; the gas storage tank is communicated with the water storage tank through a gas pipeline; the pressure reducing valve is mounted at the top of the gas storage The pressure reducing valve is connected with the alarm control box through a signal line; the water storage tank is conveyed to the water mist nozzle through the collecting pipe for spraying, and the water mist nozzle is located in the UPS control cabinet; the filter and the electromagnetic valve are arranged on the collecting pipe; the electromagnetic valve is connected with the alarm control box through a signal line and used for controlling on-off of water mist. And the temperature and smoke sensing detector is arranged at the top in the UPS control cabinet and is connected with the alarm control box through a signal line. The control cabinet can give an alarm in time and start spraying when combustion occurs in the control cabinet, fire disasters can be quickly extinguished, and smoke can be efficiently inhibited.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing systems, in particular to a fine water mist automatic fire extinguishing system built in a UPS control cabinet. Background Art

[0002] Since the UPS (Uninterruptible Power Supply) can provide stable and uninterrupted power supply to equipment, it is very common in computer rooms. There are a large number of combustibles such as cables and batteries inside the UPS control cabinet, and there are potential hazards such as component aging and wear, circuit short - circuit, and battery over - charging and heating, making it a device that is extremely prone to fire in computer rooms. Once a fire occurs, if not controlled in time, it will quickly spread to the entire computer room, inevitably causing great property losses.

[0003] As a clean and efficient fire - extinguishing medium, fine water mist has been widely used in fields such as subways, energy storage power stations, aerospace, etc. Different from traditional water - based and gas fire - extinguishing media, it has the characteristics of low cost, rapid suppression, less water consumption, and not easily causing electrical short - circuits, and is suitable for extinguishing computer room fires.

[0004] The patent application with the publication number CN103861222A discloses a hybrid early - warning cabinet fire - extinguishing device and its early - warning method, which uses a temperature sensing unit and a smoke detection unit to work together to avoid false alarms caused by single detection and improve the accuracy of fire early - warning. However, it does not involve the selection of fire - extinguishing systems and media. The patent application with the publication number CN110947123A discloses a cabinet fire - extinguishing device that can monitor the working state of the cabinet and automatically start the fire - extinguishing device. The fire - extinguishing device includes a storage device, a pressurizing device, a transmission pipeline, a control valve, and a spraying device. The fire - extinguishing medium in the storage device is carbon dioxide, and the high - pressure fire - extinguishing medium is transported to the pipeline for spraying through the pressurizing device. For the fire of the UPS control cabinet, the problems of this device are as follows: carbon dioxide gas mainly extinguishes fires through the asphyxiation principle and has poor cooling ability. Since the control cabinet is not completely sealed, when the carbon dioxide in the cabinet escapes, the risk of re - ignition is relatively high.

[0005] The patent application with the publication number CN106474643A discloses an in - built automatic control device for cabinet fire extinguishing. The data acquisition unit collects the temperature and gas concentration inside the cabinet and transmits them to the main control unit, which intelligently judges the occurrence of fire and activates the audible and visual alarm, and then releases gas for fire extinguishing. This device also has problems such as weak heat absorption capacity, insufficient efficiency in extinguishing electrical fires, and the need for manual operation by the operator to start fire extinguishing, which is not conducive to the early suppression of fires. CN103550888A discloses a bottle - type gas - driven hybrid fire - extinguishing device that uses gas to drive the mixing and spraying of dry powder and water for fire extinguishing. The operation is simple and fast, and the fire - extinguishing time is short. However, in this solution, the gas storage tank, dry - powder storage tank, and water storage tank are arranged separately and not integrated into the control cabinet. This system occupies a large space, has great limitations in the installation application scenario, and is not suitable for UPS control cabinets. CN213941927U discloses an electrical automation control cabinet fire extinguisher. This solution uses ammonium phosphate dry - powder fire extinguishing agent and realizes the adjustment of the nozzle angle through the rotation of the connector and the connection seat. This fire - extinguishing system does not integrate a fire detection module and cannot obtain the internal operation status of the control cabinet in time. Once a fire occurs inside, the best suppression period will be missed. In addition, for the fire of the UPS control cabinet, the dry - powder fire extinguishing agent will cause damage to electrical components.

[0006] In summary, the existing cabinet fire - extinguishing systems have problems such as insufficient automation, inability to quickly and effectively cool and suppress electrical fires, and damage to electrical components. To avoid the development and spread of fires in UPS control cabinets, reduce accident losses, and ensure their safety, it is necessary to develop a fine - water - mist automatic fire - extinguishing system built into the UPS control cabinet. Utility Model Content

[0007] In view of this, the present utility model provides a fine - water - mist automatic fire - extinguishing system built into the UPS control cabinet, which can timely alarm and start spraying when cables, modules and other materials inside the control cabinet catch fire, so as to quickly extinguish the fire and efficiently suppress smoke.

[0008] The technical solution adopted by the present utility model is as follows:

[0009] A fine - water - mist automatic fire - extinguishing system built into the UPS control cabinet includes a bottle storage frame, a compressed gas cylinder, a pressure reducing valve, a water storage tank, a filter, a solenoid valve, a manifold, a fine - water - mist nozzle and a heat - sensitive and smoke - sensitive detector;

[0010] The gas storage tank, water storage tank, pressure reducing valve, filter, and solenoid valve are all integrated within the bottle storage frame; the gas storage tank is connected to the water storage tank through a gas transmission pipeline, and the pressure reducing valve is installed on the top of the gas storage tank for setting the outlet pressure of the water storage tank; the pressure reducing valve is connected to the alarm control box through a signal line; the water storage tank is transported through a manifold to the water mist nozzles and sprayed out, and the water mist nozzles are located within the UPS control cabinet; the filter and solenoid valve are arranged on the manifold; the solenoid valve is connected to the alarm control box through a signal line for controlling the opening and closing of the water mist; the heat and smoke detectors are arranged on the top within the UPS control cabinet and connected to the alarm control box through a signal line.

[0011] Furthermore, the dimensions of the bottle storage frame do not exceed 500mm×500mm×400mm.

[0012] Furthermore, the droplet size Dv90 of the mist droplets sprayed out at the water mist nozzles is not greater than 400 microns.

[0013] Furthermore, the water storage capacity of the water storage tank does not exceed 5L.

[0014] Furthermore, the gas storage tank and the water storage tank are vertically fixed to the ground within the bottle storage frame.

[0015] Furthermore, the gas storage tank and the water storage tank are horizontally fixed to the ground within the bottle storage frame.

[0016] Advantageous effects:

[0017] 1. The present utility model is built into the UPS control cabinet, and can timely alarm and start spraying when the cables, modules and other materials in the control cabinet catch fire, achieving the purpose of quickly extinguishing the fire and efficiently suppressing the smoke; moreover, the gas storage tank and the water storage tank are both integrated within the bottle storage frame, occupying a small space and being suitable for the UPS control cabinet.

[0018] 2. The droplet size Dv90 of the mist droplets sprayed out at the water mist nozzles of the present utility model is not greater than 400 microns, with good dispersion and strong diffusion ability, and little damage to electrical appliances.

[0019] 3. The bottle storage frame of the present utility model has small dimensions and occupies a small space, can be installed vertically or horizontally, and has a wide range of installation application scenarios. Description of the drawings

[0020] Figure 1 is a schematic structural diagram of the present utility model.

[0021] Figure 2 is a schematic diagram of the vertical installation of the bottle storage frame within the UPS control cabinet.

[0022] Figure 3 is a schematic diagram of the horizontal installation of the bottle storage frame within the UPS control cabinet.

[0023] Among them, 1 - gas storage tank, 2 - pressure reducing valve, 3 - water storage tank, 4 - manifold, 5 - filter, 6 - solenoid valve, 7 - fine water mist nozzle, 8 - heat and smoke detector, 9 - alarm control box, 10 - cylinder storage frame, 11 - UPS control cabinet. Specific embodiments

[0024] The following combines the accompanying drawings and gives embodiments to describe the present utility model in detail.

[0025] Embodiment 1

[0026] This embodiment provides a fine water mist automatic fire extinguishing system built in the UPS control cabinet, including a cylinder storage frame 10, a compressed gas cylinder, a pressure reducing valve 2, a water storage tank 3, a filter 5, a solenoid valve 6, a manifold 4, a fine water mist nozzle 7 and a heat and smoke detector 8; as Figure 1 、 Figure 2 shown, the cylinder storage frame 10 is vertically installed inside the UPS control cabinet 11, the gas storage tank 1, the water storage tank 3, the pressure reducing valve 2, the filter 5, and the solenoid valve 6 are all integrated in the cylinder storage frame 10, and the gas storage tank 11 and the water storage tank 3 are fixed perpendicular to the ground in the cylinder storage frame 10. The size of the cylinder storage frame 10 does not exceed 500mm×500mm×400mm.

[0027] The gas storage tank 1 is connected to the water storage tank 3 through a gas transmission pipeline, and the pressure reducing valve 2 is installed on the top of the gas storage tank 1 for setting the outlet pressure of the water storage tank 3; the pressure reducing valve 2 is connected to the alarm control box 9 through a signal line, and the pressure reducing valve 2 opens when receiving a fire signal sent by the alarm control box 9; the alarm control box 9 is located outside the UPS control cabinet. The water in the water storage tank 3 is transported to the water mist nozzle through the manifold 4 and sprayed out. In this embodiment, the water mist nozzles are arranged at both upper ends inside the UPS control cabinet; the filter 5 and the solenoid valve 6 are arranged on the manifold 4; the filter 5 is used to prevent the fine water mist nozzle 7 from being blocked, and the solenoid valve 6 is connected to the alarm control box 9 through a signal line for controlling the opening and closing of the water mist; the heat and smoke detector 8 is arranged on the top inside the UPS control cabinet and is connected to the alarm control box 9 through a signal line.

[0028] After receiving the alarm signal sent by the heat and smoke detector 8, the alarm control box 9 automatically opens the pressure reducing valve 2 installed at the outlet of the gas storage tank 1 and the solenoid valve 6 on the manifold 4. The compressed gas in the gas storage tank 1 enters the top of the water storage tank 3 through the gas transmission pipeline, occupies the top space, forms a high-pressure area, and the water in the water storage tank 3 is driven to the fine water mist nozzle 7 through the inlet of the manifold 4 at the bottom for spraying. The particle size Dv90 (the diameter of 90% of the particles in the spray) of the sprayed mist droplets is not greater than 400 microns.

[0029] The water storage capacity in the water storage tank 3 does not exceed 5L and the continuous spraying time is not less than 10 minutes, and the fire extinguishing is thorough and not easy to reignite.

[0030] Embodiment 2

[0031] The structure of the water mist automatic fire extinguishing system built in the UPS control cabinet provided in this embodiment is the same as that of the water mist automatic fire extinguishing system in Embodiment 1. The difference is that the storage bottle frame 10 is horizontally installed inside the UPS control cabinet 11, and the gas storage tank 1 and the water storage tank 3 are fixed in the storage bottle frame 10 parallel to the ground, as Figure 3 shown.

[0032] After receiving the alarm signal sent by the temperature and smoke detector 8, the alarm control box 9 automatically opens the pressure reducing valve 2 installed at the outlet of the gas storage tank 1 and the solenoid valve 6 on the manifold 4. The compressed gas enters the upper part of the water storage tank 3 when it is placed horizontally through the gas transmission pipeline, occupies the upper space to form a high-pressure area, and the water in the water storage tank 3 is driven to the water mist nozzle 7 through the inlet of the manifold 4 at the bottom for spraying.

[0033] In summary, the above is only the preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic fine water mist fire extinguishing system built into a UPS control cabinet, characterized in that, It includes a bottle storage frame, a compressed gas cylinder, a pressure reducing valve, a water storage tank, a filter, a solenoid valve, a manifold, a fine water mist nozzle and a heat and smoke detector; The gas storage tank, the water storage tank, the pressure reducing valve, the filter and the solenoid valve are all integrated in the bottle storage frame, and the size of the bottle storage frame does not exceed 500mm×500mm×400mm; The gas storage tank is connected to the water storage tank through a gas transmission pipeline, and the pressure reducing valve is installed on the top of the gas storage tank for setting the outlet pressure of the water storage tank; The pressure reducing valve is connected to the alarm control box through a signal line; The water storage tank is transported to the water mist nozzle through a manifold and sprayed out. The water mist nozzle is located in the UPS control cabinet, and the droplet size Dv90 of the water mist sprayed out at the water mist nozzle is not greater than 400 microns; The filter and the solenoid valve are arranged on the manifold; The solenoid valve is connected to the alarm control box through a signal line for controlling the opening and closing of the water mist; The heat and smoke detector is arranged on the top in the UPS control cabinet and is connected to the alarm control box through a signal line.

2. The fine water mist automatic fire extinguishing system built into the UPS control cabinet according to claim 1, characterized in that, The water storage capacity of the water storage tank does not exceed 5L.

3. The fine water mist automatic fire extinguishing system built in the UPS control cabinet according to claim 2, characterized in that, The gas storage tank and the water storage tank are fixed perpendicular to the ground in the bottle storage frame.

4. The fine water mist automatic fire extinguishing system built in the UPS control cabinet according to claim 2, characterized in that, The gas storage tank and the water storage tank are fixed parallel to the ground in the bottle storage frame.

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