Distributed multi-cabinet parallel fire extinguishing system for energy storage cabinets

Abstract

The utility model discloses a distributed energy storage cabinet multi-cabinet parallel fire fighting system, which relates to the technical field of distributed energy storage cabinet fire fighting, and comprises a multi-split information collection cabinet, and a combustible gas alarm host, a gas fire extinguishing controller and an EMS host are arranged in the multi-split information collection cabinet; the system further comprises an EMS slave machine, a smoke detector, an H2 detector, a CO detector, a temperature detector and a smoke detector which are arranged in each single distributed energy storage cabinet. The EMS slave receives a signal of the smoke detector and sends information to the EMS host; the combustible gas alarm host receives signals of the H2 detector and the CO detector and sends information to the gas fire extinguishing controller; the gas fire extinguishing controller receives signals of the temperature sensing detector, the smoke sensing detector and the combustible gas alarm host and sends information to the EMS host; according to the utility model, the targeted fire-fighting function of industrial and commercial large storage is realized, the safety of an energy storage power station is ensured, and the applicability of the distributed energy storage cabinet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distributed energy storage cabinet fire protection, in particular to a distributed energy storage cabinet multi-cabinet parallel fire protection system. Background Art

[0002] Since the dual carbon goals and the reform of user-side electricity prices, the peak-valley price gap has gradually widened. Enterprises are in urgent need of shaving peaks and filling valleys and reducing energy costs. The construction of user-side energy storage projects can bring great benefits to enterprises and reduce energy costs. Especially in the case of high-load electricity consumption in summer, energy storage equipment can achieve a certain degree of peak-shifting electricity consumption and effectively alleviate the power supply pressure during the peak period of the power grid. Compared with centralized energy storage power stations, distributed energy storage has the advantages of high power utilization, high flexibility, high reliability, and flexible layout. It is widely used in various industrial and commercial scenarios. Compared with the layout of centralized power stations, distributed energy storage is generally arranged in open scenarios such as large-scale industry and commerce, photovoltaic storage charging stations, and distributed photovoltaic distribution storage, which puts higher requirements on its safety to ensure the safety of equipment and personnel.

[0003] The existing safety configuration scheme of distributed energy storage systems generally adopts a composite detector + passive aerosol fire protection scheme, which can be used when the station scale is below 500kW. However, with the large-scale use of industrial and commercial energy storage, when the scale of energy storage power stations is above 500kW, the above safety configuration scheme cannot accurately carry out corresponding emergency fire protection measures for a single cabinet, resulting in the inability to reasonably control losses. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problems in the prior art and provide a distributed energy storage cabinet multi-cabinet parallel fire protection system.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A distributed energy storage cabinet multi-cabinet parallel fire protection system, comprising a one-to-many information collection cabinet, wherein a combustible gas alarm host, a gas fire extinguishing controller and an EMS host are arranged in the one-to-many information collection cabinet;

[0007] It also includes EMS slaves, smoke detectors, H2 detectors, CO detectors, temperature detectors and smoke detectors arranged in each single distributed energy storage cabinet;

[0008] The EMS slave receives the signal from the smoke detector and sends the information to the EMS master;

[0009] The combustible gas alarm host receives signals from the H2 detector and the CO detector and sends information to the gas fire extinguishing controller;

[0010] The gas fire extinguishing controller receives signals from the temperature detector, the smoke detector and the combustible gas alarm host and sends information to the EMS host.

[0011] Furthermore, the EMS slave and the smoke detector are arranged in a power distribution compartment of a single distributed energy storage cabinet; the H2 detector, CO detector, temperature detector and smoke detector are all arranged in a battery compartment of a single distributed energy storage cabinet.

[0012] Furthermore, each of the single distributed energy storage cabinets is provided with a gas fire extinguishing device for spraying a fire extinguishing medium.

[0013] Furthermore, it also includes a gas fire extinguishing medium outdoor cabinet for storing the gas fire extinguishing medium, and the gas fire extinguishing devices are all connected to the gas fire extinguishing medium outdoor cabinet.

[0014] Furthermore, the single distributed energy storage cabinet is provided with a smoke exhaust fan and an openable and closable shutter, and the smoke exhaust fan corresponds to the shutter.

[0015] Furthermore, a fire sprinkler for spraying water is provided in the single distributed energy storage cabinet, the fire sprinkler is connected to a water source through a water fire fighting pipeline, and a fire fighting water valve is installed on the water fire fighting pipeline.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model adds a one-to-many information collection cabinet to install the EMS host, the combustible gas alarm host and the gas fire extinguishing controller. Through the signal line, multiple cabinets are connected in parallel at multiple levels to realize the fire protection function of large industrial and commercial storage. Through the EMS slave machine and the smoke detector, the single cabinet is identified, which single cabinet has a fire, and the corresponding emergency measures are accurately taken for which single cabinet, so as to ensure the safety of the energy storage power station, appropriately reduce the cost, and improve the application of distributed energy storage cabinets.

[0018] The utility model improves the fire protection scheme of distributed energy storage, improves the application ability of distributed energy storage cabinets in the field of large-scale industrial and commercial storage, can realize gas fire extinguishing, and has the function of water fire protection and re-ignition prevention. Once an accident occurs, the accident will not spread, thereby improving the safety of equipment and operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a single cabinet fire protection system of the present utility model.

[0020] Figure 2 This is a schematic diagram of a multi-cabinet fire protection system of the present utility model.

[0021] Figure 3 This is a schematic diagram of the fire control of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The present invention is further described in detail below in conjunction with the embodiments.

[0025] A specific embodiment of a distributed energy storage cabinet multi-cabinet parallel fire protection system provided by the utility model:

[0026] See also Figure 1-3 , distributed energy storage cabinet multi-cabinet parallel fire protection system; including a one-to-many information collection cabinet, in which a combustible gas alarm host, a gas fire extinguishing controller and an EMS host are arranged; it also includes EMS slaves, smoke detectors, H2 detectors, CO detectors, temperature detectors and smoke detectors arranged in each single distributed energy storage cabinet; the EMS slave receives the signal of the smoke detector and sends information to the EMS host; the combustible gas alarm host receives the signal of the H2 detector and the CO detector and sends information to the gas fire extinguishing controller; the gas fire extinguishing controller receives the signal of the temperature detector, the smoke detector and the combustible gas alarm host and sends information to the EMS host.

[0027] The EMS slave and smoke detector are installed in the power distribution compartment of a single distributed energy storage cabinet; the H2 detector, CO detector, temperature detector and smoke detector are all installed in the battery compartment of a single distributed energy storage cabinet.

[0028] Each distributed energy storage cabinet is equipped with a gas fire extinguishing device for spraying fire extinguishing medium. It also includes a gas fire extinguishing medium outdoor cabinet for storing gas fire extinguishing medium, and the gas fire extinguishing devices are connected to the gas fire extinguishing medium outdoor cabinet; the gas fire extinguishing device sprays the gas fire extinguishing medium to achieve fire extinguishing.

[0029] A single distributed energy storage cabinet is equipped with a smoke exhaust fan and an openable and closable shutter. The smoke exhaust fan corresponds to the shutter. The smoke exhaust fan is located outside the shutter and is used for exhaust. When the combustible gas concentration reaches the threshold, the smoke exhaust fan and shutter are turned on to reduce the combustible gas inside the energy storage cabinet. When the gas fire is extinguished, the smoke exhaust fan and shutter are closed.

[0030] A single distributed energy storage cabinet is equipped with a water-spraying fire sprinkler, which is connected to a water source through a water fire pipeline, and a fire water valve is installed on the water fire pipeline. After the gas fire is extinguished, when the temperature detected by the temperature detector reaches the threshold, re-ignition can be suppressed by spraying water.

[0031] The fire protection architecture of a single distributed energy storage cabinet is as follows: Figure 1 As shown. A conventional smoke detector (not shown in the figure) is configured in the distribution compartment of the distributed energy storage system to detect the smoke concentration in the distribution compartment. Independent temperature, smoke, CO, and H2 detectors are configured in the battery compartment. An independent combustible gas alarm host and gas fire extinguishing controller are configured in the one-to-many information collection cabinet. A single energy storage cabinet detects the temperature, smoke, CO, and H2 concentrations in the battery compartment, and transmits the relevant concentration data to the combustible gas alarm host and gas fire extinguishing controller. The gas fire extinguishing controller processes the data uniformly, outputs relevant work instructions, and transmits the relevant information to the EMS host.

[0032] The fire linkage diagram of the distributed energy storage cabinet is as follows: Figure 3 As shown, a conventional smoke detector will output the corresponding node and pass the information to the EMS slave; the combustible gas alarm host and the gas fire extinguishing controller will process the detected temperature, smoke, CO and H2 concentration data, and then perform corresponding actions according to the set conditions of the first or second alarm. After the conventional smoke sensor is activated, the action signal will be transmitted to the EMS slave. At the same time, the EMS slave will issue a command to trip the main circuit incoming line circuit breaker (incoming line switch), and the EMS slave will issue a command to shut down the PCS, and the energy storage system will cut off the connection with the power grid. The BMS communicates with the PCS through CAN. After obtaining the shutdown status information of the PCS, the BMS will take relevant protection measures to trip the DC circuit breaker (high-voltage box switch) of the high-voltage box and disconnect the main circuit of the DC contactor.

[0033] The distributed energy storage cabinet has added the function of pressure relief, such as Figure 3 As shown. The distributed energy storage cabinet is independently equipped with temperature, smoke, CO, H2 detectors, electric grilles (i.e. shutters or shutters), and smoke exhaust fans (i.e. fans). When the CO and H2 concentrations reach the threshold, a level 1 alarm is triggered, and the gas fire extinguishing controller sends a signal to open the shutters and fans to discharge the combustible gas in the battery room and reduce the pressure on the battery compartment.

[0034] Distributed energy storage cabinets have added multi-level fire protection functions, such as Figure 3 As shown. Distributed energy storage cabinets are independently equipped with fire water valves (electric), water flow switches, water fire pipelines, fire sprinklers, and gas fire extinguishing devices. When the concentration of CO and H2 reaches the threshold, a first-level alarm is triggered, and the gas fire extinguishing controller sends a signal to open the shutters and fans to discharge the combustible gas in the battery room; when the first-level alarm triggers a short pressure relief, if the temperature and smoke sensors are triggered, the second-level alarm of this system is reached. At this time, the gas fire extinguishing controller sends a signal to close the shutters and fans and start the gas fire extinguishing device, that is, open the solenoid valve of the gas fire extinguishing device, and the gas fire extinguishing device sprays the single-cabinet fire extinguishing medium (such as heptafluoropropane).

[0035] The distributed energy storage cabinet has added the function of re-ignition suppression, such as Figure 3 As shown. The distributed energy storage cabinet is equipped with a battery cluster-level water sprinkler fire-fighting device. When a fire occurs, at the second-level alarm, after the gas fire extinguishing device is activated to extinguish the fire, there is no fire in the battery plug box, but the temperature is still very high. At this time, it is necessary to start the fire water valve. After the fire water valve is started, the fire water passes through the water flow switch and the water fire-fighting pipeline to reach the battery cluster fire water pipe. A fire sprinkler is configured at the end of the water fire-fighting pipe at the highest position of the battery cluster. When the temperature reaches the set threshold (93°C), the temperature protection fuse of the fire sprinkler blows, and the fire water reaches the battery cluster. The fire water cools down the battery system to prevent re-ignition; achieving battery cluster-level water fire fighting.

[0036] Distributed energy storage cabinets have added the function of multi-cabinet parallel fire protection, such as Figure 2 As shown. The energy storage power station is equipped with independent temperature, smoke, CO, and H2 detectors, as well as independent combustible gas alarm hosts and gas fire extinguishing controllers. In traditional technologies, such configurations are often difficult to implement in distributed energy storage due to factors such as small space. In this embodiment, independent temperature, smoke, CO, and H2 detectors are configured in a single distributed energy storage cabinet, and a one-to-many information collection cabinet is added to install independent combustible gas alarm hosts and gas fire extinguishing controllers. Through signal lines, multiple cabinets are connected in parallel at multiple levels to realize the fire protection function of large industrial and commercial storage. If a single cabinet fails, corresponding emergency measures are accurately taken for that single cabinet to ensure the safety of the energy storage power station, appropriately reduce costs, and improve the application of distributed energy storage cabinets.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A distributed energy storage cabinet multi-cabinet parallel fire protection system, characterized by: It includes a one-to-many information collection cabinet, in which a combustible gas alarm host, a gas fire extinguishing controller and an EMS host are arranged; It also includes EMS slaves, smoke detectors, H2 detectors, CO detectors, temperature detectors and smoke detectors arranged in each single distributed energy storage cabinet; The EMS slave receives the signal from the smoke detector and sends the information to the EMS master; The combustible gas alarm host receives signals from the H2 detector and the CO detector and sends information to the gas fire extinguishing controller; The gas fire extinguishing controller receives signals from the temperature detector, the smoke detector and the combustible gas alarm host and sends information to the EMS host.

2. The distributed energy storage cabinet multi-cabinet parallel fire protection system according to claim 1 is characterized in that: The EMS slave and smoke detector are arranged in the power distribution compartment of a single distributed energy storage cabinet; the H2 detector, CO detector, temperature detector and smoke detector are all arranged in the battery compartment of a single distributed energy storage cabinet.

3. The distributed energy storage cabinet multi-cabinet parallel fire protection system according to claim 1 is characterized in that: Each of the distributed energy storage cabinets is provided with a gas fire extinguishing device for spraying a fire extinguishing medium.

4. The distributed energy storage cabinet multi-cabinet parallel fire protection system according to claim 3 is characterized in that: It also includes a gas fire extinguishing medium outdoor cabinet for storing the gas fire extinguishing medium, and the gas fire extinguishing devices are all connected to the gas fire extinguishing medium outdoor cabinet.

5. The distributed energy storage cabinet multi-cabinet parallel fire protection system according to claim 1 is characterized in that: The single distributed energy storage cabinet is provided with a smoke exhaust fan and an openable and closable shutter, and the smoke exhaust fan corresponds to the shutter.

6. The distributed energy storage cabinet multi-cabinet parallel fire protection system according to claim 1 is characterized in that: The single distributed energy storage cabinet is provided with a fire sprinkler for spraying water. The fire sprinkler is connected to a water source through a water fire fighting pipeline, and a fire fighting water valve is installed on the water fire fighting pipeline.

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