Data concentrator for energy storage and fire fighting and control method thereof

Abstract

The invention discloses a data concentrator for energy storage and fire fighting and a control method thereof, and relates to the field of data concentrators. In order to solve the defects that an existing data concentrator needs to be connected with a ball valve through an external wire harness, the system reliability and stability are poor, the anti-interference performance is poor, observation and debugging are inconvenient, the structure is complex, and the cost is high, a main control module is used for outputting driving signals according to signals of all detectors and a preset rule; the execution module is used for controlling the opening state of the valve body according to the driving signal; the power supply module is used for converting a power supply so as to meet the power supply requirement of the main control module; and the display module is used for acquiring and outputting a ball valve in-place signal. The method is mainly used for optimizing an existing data concentrator, and the pipeline ball valve is automatically controlled.

Description

Technical Field

[0001] The present invention relates to the field of data concentrators, and in particular to a data concentrator for energy storage firefighting and a control method thereof. Background Art

[0002] The data concentrator is a centralized management and data transfer device for composite fire detectors and combustible gas detectors in the fire protection system of an electrochemical energy storage power station. It provides unified detector coding and data transmission and reception, optimizing system topology and improving system stability. It is also responsible for activating the ball valves in the cluster-level fire protection pipelines and receiving feedback signals from them. The energy storage tank-level fire protection system includes pipelines for distributing fire extinguishing agents. Ball valves act as switches for cluster-level sub-pipes within the pipelines, electrically controlled to open or close them and, in conjunction with fire protection logic, enable multiple releases of fire extinguishing agents. Energy storage power stations are equipment systems that store, convert, and release cyclical electrical energy using electrochemical cells or battery energy storage media. Currently, lithium iron phosphate batteries are widely used in electrochemical energy storage systems. However, lithium iron phosphate batteries carry the risk of thermal runaway, necessitating comprehensive battery thermal runaway protection and fire protection systems in energy storage power stations. Battery thermal runaway refers to a safety incident in which, under certain conditions, an exothermic chain reaction occurs within the battery, causing a rapid temperature increase and potentially resulting in fire or explosion. This is particularly prone to mechanical, electrical, or thermal abuse during use. Existing electrochemical energy storage systems primarily consist of two main components: a battery compartment and an electrical compartment. The battery compartment is composed of battery clusters (battery packs make up a battery cluster, and battery cells make up a battery pack). The electrical compartment primarily houses the energy storage inverter and ancillary facilities.

[0003] Traditional data concentrators only have a single data concentrator function and need to be connected to the ball valve through an external wiring harness. The system reliability and connection stability are not high. The design and construction of existing energy storage fire protection systems require the design of the installation positions of the data concentrator and the ball valve, and they need to be installed separately, which increases the difficulty of system design and construction costs. In addition, the existing ball valve is opened and closed by observing the pointer in the observation window, and the pointer indicates whether the ball valve is opened and closed. The main defects include high requirements for the installation position, inconvenient observation at a high position, and inability to distinguish at night.

[0004] The ball valves in energy storage fire protection systems are installed high, making them difficult to observe. Traditional data concentrators generally lack high levels of protection and are susceptible to damage in windy, sandy, and humid environments. Furthermore, existing separate ball valves and data concentrators require independent operating circuits and are developed and manufactured separately, resulting in high overall costs.

[0005] Therefore, there is a need for a data concentrator for energy storage fire fighting, which has strong reliability and stability, strong anti-interference ability, convenient observation and debugging, simple structure and low cost, and a control method thereof. Summary of the Invention

[0006] In order to solve the defects of existing data concentrators, such as the need to connect to the ball valve through an external wiring harness, poor system reliability and stability, poor anti-interference performance, inconvenient observation and debugging, complex structure and high cost, the present invention provides a data concentrator for energy storage fire fighting, which has strong reliability and stability, strong anti-interference ability, convenient observation and debugging, simple structure and low cost, and a control method thereof.

[0007] The energy storage fire-fighting data concentrator of the present invention comprises a main control module, an execution module, a power module, a display module and a communication module; The main control module is used to output a driving signal according to a preset rule based on the signal of each detector; The execution module is used to control the opening state of the valve body according to the driving signal; The power supply module is used to convert power to meet the power supply requirements of the main control module; The display module is used to obtain and output a ball valve in-position signal.

[0008] Furthermore: it also includes a communication module, which is used to communicate with an external energy storage fire controller.

[0009] Furthermore: it also includes a coding module, which is arranged between the detector and the main control module and is used to encode the address of the detector.

[0010] Furthermore: the detector includes a composite fire detector and a combustible gas detector.

[0011] Furthermore: it also includes a shell, a main board, an execution module and a valve body, the main control module, power module, display module and communication module are all fixed on the main board, the execution module is fixed on one side of the main board, and the output end of the execution module is connected to the valve body.

[0012] Furthermore: the execution module is connected to the valve body through a transmission shaft.

[0013] Furthermore, the display module adopts a switch in position indicator light, and the switch in position indicator light is connected to the output end of the valve body for displaying the valve body in position signal.

[0014] Furthermore: the display module uses a display screen to indicate the switch position signal.

[0015] Furthermore: the data concentrator is arranged inside the valve body.

[0016] The control method based on the energy storage fire-fighting data concentrator described in the present invention includes: The main control module obtains the signals from each detector and generates a driving signal; The execution module controls the opening state of the valve body according to the driving signal; The power module inputs the converted power to the main control module; The display module obtains and outputs the valve body's position signal.

[0017] The beneficial effects of the present invention are: The data concentrator for energy storage firefighting and the control method thereof described in the present invention eliminate the external wiring harness of the existing ball valve and data concentrator, thereby improving system reliability and connection stability. After integration, the external control and feedback lines are eliminated, and the anti-interference performance is better. The difficulty of system design and construction is reduced, and space utilization is improved. The use of light-emitting diodes to replace the opening and closing observation windows of traditional ball valves facilitates observation of the opening and closing status of the ball valve during the integration and testing of the energy storage firefighting system. By utilizing the shell protection level of the ball valve itself, the application scenarios of the data concentrator can be expanded, and it can be used in windy, sandy and humid environments. The overall product integration is higher, and the overall cost of hardware and products is lower.

[0018] The present invention has the following technical effects: 1. The external wiring harness of the ball valve and data concentrator is eliminated, which improves the system reliability and connection stability. After integration, the external control and feedback lines are eliminated, and the anti-interference performance is better.

[0019] 2. The ball valve and control are integrated into the data concentrator, which reduces the difficulty of fire protection system design and saves installation space and construction costs.

[0020] 3. The open / close position indicator replaces the traditional ball valve's position observation window, making it easy to observe even at a high installation position, facilitating system debugging. The open and close position signals are easy to observe, even at night or when installed at a high position.

[0021] 4. The data concentrator is integrated into the ball valve, and the outer shell of the ball valve itself is used for protection to increase the protection level of the data concentrator. It can be used in windy, sandy and humid environments. Due to the improved protection level, the application scenarios are more extensive.

[0022] 5. After integrating the control circuits of the ball valve control and the data concentrator, the integration level is higher, the product is more compact, and the overall cost of hardware and products is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the functional block diagram of the data concentrator; Figure 2 This is the structural diagram of the data concentrator.

[0024] In the figure, 1, housing; 2, main board; 3, execution module; 4, valve body. DETAILED DESCRIPTION

[0025] The following are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or replacements that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the scope of protection of the present invention. The embodiments described below are only used to explain the present invention and cannot be interpreted as limiting the present invention. The scope of protection of the present invention should be based on the scope of protection of the claims. The embodiments of the present invention are described in detail below. In order to facilitate the description of the present invention and simplify the description, the technical terms used in the description of the present invention should be interpreted broadly, including but not limited to conventional replacement schemes not mentioned in this application, and also including direct implementation and indirect implementation.

[0026] Example 1 Combine Figure 1 and Figure 2 This embodiment describes a data concentrator for energy storage firefighting disclosed in this embodiment, including a main control module, an execution module 3, a power module, a display module, a communication module and an encoding module; The main control module is the core of the control module. It uses a microcontroller to implement all functions and control of the data concentrator. The microcontroller model is GD32C113TBU6. Its logic for generating drive signals is as follows: the main control IO port outputs high and low levels to meet the forward and reverse rotation requirements of the motor driver chip (DRV8837). The motor is the core component of the execution module.

[0027] The main control module is used to output driving signals according to preset rules based on the signals of each detector; the detectors include point-type smoke detectors, point-type temperature detectors, combustible gas detectors, carbon monoxide and smoke and temperature composite fire detectors. These detectors detect data such as smoke, temperature, combustible gas and carbon monoxide in real time. When the detector data meets the system's preset alarm level, the main control module sends a ball valve opening signal.

[0028] The actuator module is the valve's driving and transmission device. The control module outputs a drive signal to the actuator module, which then receives the drive signal to open and close the valve. The actuator module's core component is the motor. The microcontroller outputs forward and reverse motor rotation commands, which the actuator module then performs, thereby opening or closing the valve.

[0029] The power supply module is responsible for the voltage conversion and power output control required by the data concentrator control module. It primarily consists of a DC-DC converter and an LDO voltage regulator chip. This converts the external 24V DC power supply to meet the voltage levels required by the control module's various components. The DC-DC converter model is LV2862XLVDDCR; the LDO voltage regulator chip model is AMS1117-3.3.

[0030] The display module primarily outputs a ball valve position signal, using a light-emitting diode (LED) instead of the original mechanical pointer. Because the energy storage firefighting ball valve is installed atop the prefabricated energy storage cabin, it's difficult to observe whether the valve is open or closed during firefighting system commissioning and testing. Using an indicator light, differentiated by color, makes it easier to observe the valve's opening and closing status. There are only two states: open and closed; the system doesn't allow other openings or intermediate openings.

[0031] The input signal is the ball valve activation signal output from the main control module to the display module. The output signal is the drive signal for the LED, which illuminates the LED to indicate the open or closed status of the ball valve. The ball valve in-position signal refers to the LEDs of corresponding colors lighting up when the ball valve is fully opened or fully closed. For example, a red LED illuminates the fully opened position, while a green LED illuminates the fully closed position. Normally, the ball valve is closed, so the green indicator light is always on.

[0032] The communication module mainly includes CAN communication part and RS485 communication part. The CAN communication part is mainly used for data communication with the energy storage fire controller, and RS485 is mainly used for data communication with the space combustible gas detector.

[0033] After the external energy storage fire controller receives the opening and closing signal of the ball valve, it needs to link and control other external devices to perform corresponding actions, such as lighting the "Do Not Enter" indicator light, starting the sound and light alarm, opening the shutters, turning on the fan, etc.

[0034] The encoding module's main function is to enable one-click address encoding of an entire cluster of detectors through the data concentrator. Cluster-level detectors must be address-encoded to function properly and communicate properly. One-click encoding of the entire cluster is more efficient than encoding a single detector. Cluster-level detectors are housed inside the battery pack.

[0035] The valve body is a DN15 ball valve, a purely mechanical structure made of stainless steel. It is connected to the actuator module via a drive shaft. The main control module controls the actuator module to generate torque, which is then transmitted to the ball valve body via the drive shaft, opening and closing the ball valve.

[0036] Figure 2 In the figure, the data concentrator includes a housing 1, a mainboard 2, an execution module 3, and a valve body 4. The main control module, power module, display module, and communication module are all fixed to the mainboard 2. The execution module 3 is fixed to one side of the mainboard 2, and the output end of the execution module 3 is connected to the valve body 4. The housing 1 includes an upper cover 101 and a lower cover 102. The mainboard 2 of the data concentrator is disposed inside the valve body 4.

[0037] Example 2 This embodiment is described in conjunction with Example 1. This embodiment discloses a control method for a data concentrator for energy storage firefighting, including: The main control module obtains the signals from each detector and generates a driving signal; The execution module 3 controls the opening state of the valve body 4 according to the driving signal; The power module inputs the converted power to the main control module; The display module obtains and outputs the position signal of the valve body 4.

Claims

1. A data concentrator for energy storage firefighting, characterized in that: It includes a main control module, an execution module (3), a power module, a display module and a communication module; The main control module is used to output a driving signal according to a preset rule based on the signal of each detector; The execution module (3) is used to control the opening state of the valve body according to the driving signal; The power supply module is used to convert power to meet the power supply requirements of the main control module; The display module is used to obtain and output a ball valve in-position signal.

2. The energy storage firefighting data concentrator according to claim 1, characterized in that: It also includes a communication module, which is used to communicate with an external energy storage fire controller.

3. The energy storage fire-fighting data concentrator according to claim 1, characterized in that: It also includes a coding module, which is arranged between the detector and the main control module and is used to encode the address of the detector.

4. The energy storage firefighting data concentrator according to claim 1, characterized in that: The detectors include composite fire detectors and combustible gas detectors.

5. The energy storage fire-fighting data concentrator according to claim 1, characterized in that: It also includes a housing (1), a mainboard (2), an execution module (3) and a valve body (4), wherein the main control module, the power module, the display module and the communication module are all fixed on the mainboard (2), the execution module (3) is fixed on one side of the mainboard (2), and the output end of the execution module (3) is connected to the valve body (4).

6. The energy storage fire-fighting data concentrator according to claim 1 or 5, characterized in that: The execution module (3) is connected to the valve body (4) via a transmission shaft.

7. The energy storage fire-fighting data concentrator according to claim 1, characterized in that: The display module adopts a switch in position indicator light, which is connected to the output end and is used to display the in position signal of the valve body (4).

8. The energy storage firefighting data concentrator according to claim 1, characterized in that: The display module uses a display screen to indicate the switch position signal.

9. The energy storage firefighting data concentrator according to claim 1, characterized in that: The data concentrator is arranged inside the valve body (4).

10. A control method for a data concentrator for energy storage firefighting according to any one of claims 1 to 9, characterized in that: include: The main control module obtains the signals from each detector and generates a driving signal; The execution module (3) controls the opening state of the valve body (4) according to the driving signal; The power module inputs the converted power to the main control module; The display module obtains and outputs the valve body (4) in-position signal.

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