Combustible gas alarm controller for electrochemical energy storage system

Abstract

The utility model discloses a combustible gas alarm controller for an electrochemical energy storage system, the controller is an electronic device, the device is installed in a waterproof and dustproof box body structure, the front side of the box body is provided with a display screen, a waterproof control panel and an audible and visual alarm, a control circuit board, a power supply module and a standby power supply module are arranged in the box body, and a multi-path detector input wiring port, a general communication bus port, an exhaust control port, a multi-path combustible gas alarm control port and the like which are applicable to an electrochemical energy storage scene are configured; and various special requirements of combustible gas detection, judgment alarm, linkage control, external communication and the like in a complex scene of an electrochemical energy storage power station can be met.

Description

Technical Field

[0001] The utility model relates to the field of electrochemical energy storage, in particular to a combustible gas alarm controller for an electrochemical energy storage system. Background Art

[0002] my country's energy storage industry is experiencing rapid growth, with an increasing number of electrochemical energy storage power stations installed. However, the lithium-ion batteries used in electrochemical energy storage power stations are essentially chemical components containing high-energy substances, which are inherently dangerous. During equipment operation, flammable gases such as hydrogen, carbon monoxide, and hydrocarbons will accumulate in the battery compartment. If the accumulation is too large, it will cause a fire accident in the chemical energy storage power station. Therefore, a flammable gas detection system must be configured. When the flammable gas concentration reaches a certain threshold, an alarm will be issued, and the exhaust system will be activated to exhaust the flammable gas out of the battery compartment to avoid system risks. The flammable gas alarm controller currently used in electrochemical energy storage power stations is a common product in the industrial or petrochemical industry. It is generally used indoors to detect and alarm specific gases. It is difficult to meet the requirements of electrochemical energy storage systems such as the diversity of flammable gases, outdoor environments, and the need for rapid automatic linkage control. Additional equipment is required to meet these requirements, increasing project costs and risks. Utility Model Content

[0003] The purpose of this utility model is to overcome the functional deficiencies of the combustible gas alarm controller in energy storage power station projects, and to provide a combustible gas alarm controller for an electrochemical energy storage system. In view of the requirements of electrochemical energy storage power station projects for multi-channel detection, linked exhaust, rain and dust protection, and flexible configuration according to the project, a special combustible gas alarm controller is specially designed for electrochemical energy storage systems.

[0004] To achieve the above objectives, the utility model provides a combustible gas alarm controller for an electrochemical energy storage system, which solves the problem that the combustible gas alarm controller works in the electrochemical energy storage power station system environment and automatically detects combustible gas, alarms and controls the combustible gas concentration in the battery compartment.

[0005] Technical solution:

[0006] A combustible gas alarm controller for an electrochemical energy storage system includes a display and control panel, an audible and visual alarm, a box lock, a backup power supply, a power module, a control circuit board, an equipment box door, and an equipment box body. The display and control panel, the audible and visual alarm, and the box lock are installed on the equipment box door, the backup power module, the power module, and the control circuit board are installed in the equipment box body, wiring holes are opened on the side of the equipment box body, and the equipment box door and the equipment box body are connected by a hinge and fixed with the box lock to form the equipment box as a whole.

[0007] Preferably, the equipment box door, equipment box body and wiring holes adopt a waterproof structure.

[0008] Preferably, the display and control panel is provided with a display screen, indicator lights and operation buttons.

[0009] Preferably, the control circuit board is provided with an external connection terminal block, on which are provided multiple detector input connection terminals, RS485 communication terminals, exhaust control terminals, multiple combustible gas low alarm control signal outputs, and multiple combustible gas high alarm control signal outputs; the low alarm control signal output signal and the combustible gas high alarm control signal output can be remotely set through the communication bus.

[0010] Beneficial effects of the utility model

[0011] Currently, chemical energy storage power station projects mostly use products commonly used in the industrial or petrochemical sectors. These products cannot meet the requirements of electrochemical energy storage systems, such as multi-channel detection of multiple combustible gases, linked exhaust, rain-proof and dust-proof outdoor installation, and flexible configuration of alarm and linkage strategies based on the project. Therefore, a combustible gas alarm controller specifically designed for electrochemical energy storage systems is designed. This device's hardware is equipped with sufficient driver interfaces, which can be configured online to meet the needs of complex electrochemical energy storage power station scenarios, such as driving exhaust, triggering system power reduction, power outages, and linkage with other systems at different times. The device is equipped with an internal backup power supply, which can continue to operate in the event of a system failure and power outage, ensuring system safety. The device is also rain-proof and dust-proof, eliminating the need for a dedicated rainproof cabin for installation when used outdoors. This can reduce engineering workload, achieve project standardization, reduce commissioning costs associated with project product personalization, and save costs and project implementation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the system structure of the utility model

[0013] Figure 2 Schematic diagram of the wiring terminal of the utility model

[0014] Figure 3 A schematic diagram of an application scenario of the utility model

[0015] Figure 4 Schematic diagram of the control panel of the present utility model DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the following embodiments, but the scope of protection of the present invention is not limited thereto:

[0017] Combine Figure 1This embodiment is a combustible gas alarm controller for an electrochemical energy storage system. It is an electronic device. The metal waterproof shell of the device consists of a waterproof device box 8 and a device door 7. A waterproof sealing gasket is set between the door 7 and the device box 8. A display and control panel 1 is embedded in the door 7. The panel is covered with a rainproof PVC film. The door 7 also has a built-in waterproof sound and light alarm 2 and a door lock 3. The device door 7 and the device box 8 are connected by a hinge 10, and are fixed with the door lock 3 to form the entire device box. A battery backup power module 4, a switching power module 5 and a control circuit board 6 are installed and fixed in the device box 8. Two wiring holes 9 are also opened on the upper part of the device box 8. One wiring hole is used to connect a 220V power supply to the switching power module 5 to power the device, and the other wiring hole is used to lay out the bus connected to the detector, the external communication line and the external control line. An external wiring terminal block 11 is installed on one side of the control circuit board 6. Figure 2 As shown, the terminal block 11 is provided with two detector input terminals, one RS485 communication terminal, one exhaust control terminal, one H2 low alarm dry contact signal output terminal, one CO low alarm dry contact signal output terminal, one VOC low alarm dry contact signal output terminal, and one combustible gas high alarm dry contact signal output terminal; the definitions of the above four signal output terminals can be set and defined through the RS485 communication bus. Figure 3 The following illustrates an application scenario for this embodiment: CO and H2 detectors are connected to the detector input terminals via a bus, while VOC detectors can be connected to another detector input terminal via another bus. When the CO, H2, or VOC detectors detect that the corresponding gas concentration reaches the preset low-alarm threshold, the combustible gas alarm controller triggers a low-alarm alarm, and the corresponding CO low-alarm dry contact signal output terminal, H2 low-alarm dry contact signal output terminal, or VOC low-alarm dry contact signal output terminal outputs a control signal. When the CO, H2, or VOC detectors detect that the corresponding gas concentration reaches the preset high-alarm threshold, the combustible gas alarm controller triggers a high-alarm alarm, and the combustible gas high-alarm dry contact signal output terminal outputs a control signal. All of this status information is uploaded to the upper-level monitoring system in real time via the RS485 communication bus. The exhaust control terminal can output control of the exhaust system. When a detector detects that the combustible gas exceeds the standard, it can automatically activate the exhaust system's exhaust fan to automatically discharge the combustible gas out of the protected area. The exhaust system can start the upper or lower exhaust fan according to the type of combustible gas received. For example, CO and H2 are lighter than air, so starting the upper exhaust fan to expel the dangerous gas will be more effective. VOC is usually heavier than air, so starting the lower exhaust fan to expel the dangerous gas will be more effective.

[0018] The display and control panel 1 is connected to the control circuit board 6 for control input and display, such as Figure 4As shown, the display and control panel 1 is provided with an LCD screen, 8 indicator lights, and 8 operation buttons. The indicator lights are: general alarm, general fault, shield, system fault, mute, network, main power working, and backup power working. The operation buttons are: mute, reset, query, confirm, page up, page down, move left, and move right.

[0019] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the relevant hardware through circuit settings, and the circuit settings can be completed by a single-chip microcomputer or other integrated chips with similar functions, which is a prior art. The core utility model of the present invention lies in the overall structural layout of the system, and the local control method can be completed by programming through existing technology; the local module connection can be achieved through existing technology. Specifically in this solution, the arrangement relationship of the various components of the device body and the connection relationship of the various circuit elements are the protection innovation points of this application, all of which are completed through hardware. The hardware of this device is provided with enough drive interfaces to meet the various functions of driving exhaust, triggering system power reduction, power off, and linkage with other systems at different times in complex scenarios of electrochemical energy storage power stations. Functions such as silencing, resetting, querying, confirming, flipping up, flipping down, shifting left, shifting right, and online configuration can all be achieved through existing technology and should not be regarded as limitations on the object of protection of this application.

[0020] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A combustible gas alarm controller for an electrochemical energy storage system, comprising a display and control panel (1), an audible and visual alarm (2), a box lock (3), a power module (5), a control circuit board (6), an equipment box door (7), and an equipment box body (8), wherein the display and control panel (1), the audible and visual alarm (2), and the box lock (3) are mounted on the equipment box door (7), the power module (5) and the control circuit board (6) are mounted in the equipment box body (8), the power module (5) is connected to the display and control panel (1), the audible and visual alarm (2), and the control circuit board (6) and supplies power to them, the audible and visual alarm (2) is connected to the control circuit board (6) and starts an alarm under control of its signal, and the display and control panel (1) is connected to the control circuit board (6) for control input and display; a wiring hole (9) is provided on the side of the equipment box body (8), the equipment box door (7) and the equipment box body (8) are connected by a hinge (10), and are fixed together with the box lock (3) to form an equipment box as a whole.

2. A combustible gas alarm controller for an electrochemical energy storage system according to claim 1, characterized in that The equipment box door (7), the equipment box body (8) and the wiring hole (9) adopt a waterproof structure.

3. A combustible gas alarm controller for an electrochemical energy storage system according to claim 1, characterized in that The display and control panel (1) is provided with a display screen, indicator lights and operation buttons.

4. A combustible gas alarm controller for an electrochemical energy storage system according to claim 1, characterized in that The control circuit board (6) is provided with an external connection terminal block (11), and the terminal block (11) is provided with no less than two detector input connection terminals, an RS485 communication bus terminal, an exhaust control terminal, no less than two combustible gas low alarm control signal outputs, and no less than two combustible gas high alarm control signal outputs.

5. A combustible gas alarm controller for an electrochemical energy storage system according to claim 4, characterized in that The combustible gas low alarm control signal output and the combustible gas high alarm control signal output are remotely set via a communication bus.

6. A combustible gas alarm controller for an electrochemical energy storage system according to claim 1, characterized in that It also includes a backup power supply (4), which is connected to the display and control panel (1), the sound and light alarm (2), and the control circuit board (6) to supply power to various components.

7. A combustible gas alarm controller for an electrochemical energy storage system according to claim 1, characterized in that A waterproof sealing gasket is provided between the equipment box door (7) and the equipment box body (8).

8. A combustible gas alarm controller for an electrochemical energy storage system according to claim 1, characterized in that The display and control panel (1) is covered with a rainproof PVC film.

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