Automatic fire extinguishing system suitable for small-power mute box diesel generating set

Abstract

The utility model provides an automatic fire extinguishing system suitable for a small-power mute box diesel generating set. The automatic fire extinguishing system comprises a generating set controller, a fire extinguisher release actuator, a fire extinguisher, a smoke alarm, a temperature alarm, an air inlet and outlet electric shutter and an alarm device, the generator set controller is connected with the fire extinguisher release actuator, the smoke alarm, the temperature alarm, the air inlet and outlet electric shutters and the alarm device; the fire extinguisher release actuator is connected with the fire extinguisher; according to the technical scheme, the automatic fire extinguishing function can be achieved only by adding corresponding accessories, implementation is high, the overall structure does not need to be changed, cost is low, the structure is simple, and maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel generator sets, in particular to an automatic fire extinguishing system suitable for low-power silent box diesel generator sets. Background Art

[0002] Diesel generator sets are widely used power supply equipment. They use diesel as fuel to generate electricity after energy conversion, which can meet the electricity needs of various scenarios such as industry, commerce, and agricultural production. In addition to corresponding applications in hospitals, data centers, shopping malls, hotels and other industries, they are also widely used in various outdoor construction, rescue, military and other fields. Diesel generator sets are often accompanied by loud noise during operation. In the above application scenarios, there are certain requirements for the quietness and waterproof performance of diesel generator sets. Therefore, in these occasions, quiet diesel generator sets with shells are generally used.

[0003] When an accidental fire occurs in a silent diesel generator set, the fire cannot be extinguished in time, resulting in the burning of the silent diesel generator set and even causing other economic and personal losses.

[0004] Most silent diesel generator sets on the market lack fire extinguishing and isolation functions after a fire. Although a small number of high-power units have fire-fighting functions, they require various sensors, pipelines, gas cylinders, control panels and other devices to be arranged inside the cabin. The electrical and mechanical structures are relatively complex and require a large space, resulting in high manufacturing costs. They are not suitable for small-power diesel generator sets that are more cost-sensitive and have cramped internal space. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an automatic fire extinguishing system suitable for a small-power silent diesel generator set. It only needs to add corresponding accessories to realize the automatic fire extinguishing function. It has strong feasibility, does not require changes to the overall structure, has low cost, and has a simple structure and low maintenance cost.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic fire extinguishing system suitable for a small-power silent box diesel generator set, including a generator set controller, a fire extinguisher release actuator, a fire extinguisher, a smoke alarm, a temperature alarm, an electric shutter for air inlet and outlet, and an alarm device;

[0007] The generator set controller is connected to the fire extinguisher release actuator, the smoke alarm, the temperature alarm, the electric shutters of the air inlet and outlet, and the alarm device; the fire extinguisher release actuator is connected to the fire extinguisher;

[0008] The smoke alarm and temperature alarm monitor the smoke and temperature status of the diesel generator set in real time; when the smoke alarm detects abnormal smoke or the temperature alarm detects abnormal temperature, the smoke alarm or the temperature alarm sends an abnormal signal to the generator set controller, and the generator set controller sends an alarm signal to the alarm device, and the alarm device alarms;

[0009] The smoke alarm detects abnormal smoke and the temperature alarm detects abnormal temperature, and both the smoke alarm and the temperature alarm send abnormal signals to the generator set controller, and the generator set controller sends an alarm signal to the alarm device and controls the generator set to shut down. The generator set controller sends a closing signal to the electric shutters at the air inlet and outlet, and the generator set controller also sends a start signal to the fire extinguisher release actuator to enable the fire extinguisher release actuator to control the fire extinguisher to extinguish the fire.

[0010] In a preferred embodiment, the electric shutters at the air inlets and outlets are specifically power-off closing type electric shutters.

[0011] In a preferred embodiment, the alarm device is specifically a buzzer.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model is a small-power silent box diesel generator set automatic fire extinguishing system, which only needs to add corresponding accessories to realize the automatic fire extinguishing function, has strong feasibility, does not need to change the overall structure, has low cost, has a simple structure, and has low maintenance cost. It can also be simply modified on the existing small silent box diesel generator set without fire extinguishing device to upgrade the function. The utility model scheme makes up for the lack of internal fire protection function of small silent box diesel generator sets on the market from the perspective of fire extinguishing function and cost, and has great significance and role. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a work flow chart of a preferred embodiment of the utility model;

[0014] Figure 2 The schematic diagram of the circuit of the preferred embodiment of the utility model is shown in FIG. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application; as used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0018] An automatic fire extinguishing system suitable for a low-power silent diesel generator set, referring to 1-2, comprising a generator set controller, a fire extinguisher release actuator, a fire extinguisher, a smoke alarm, a temperature alarm, electric shutters for air inlets and outlets, and an alarm device;

[0019] The generator set controller is connected to the fire extinguisher release actuator, the smoke alarm, the temperature alarm, the electric shutters of the air inlet and outlet, and the alarm device; the fire extinguisher release actuator is connected to the fire extinguisher;

[0020] The function of the generator set controller is to receive alarm signals and output fire execution and alarm signals; the fire extinguisher release actuator is used to control the release of the fire extinguisher; the smoke alarm and temperature alarm are used to monitor the changes in smoke and temperature in the cabin, and send abnormal signals to the unit controller when the smoke and temperature are abnormal; the electric shutters are fully opened when the unit is operating normally, and closed when a fire is detected; the alarm device is used to send alarm information when the fire protection system is activated.

[0021] The smoke alarm and temperature alarm monitor the smoke and temperature status of the diesel generator set in real time; when the smoke alarm detects abnormal smoke or the temperature alarm detects abnormal temperature, the smoke alarm or the temperature alarm sends an abnormal signal to the generator set controller, and the generator set controller sends an alarm signal to the alarm device, and the alarm device alarms;

[0022] The smoke alarm detects abnormal smoke and the temperature alarm detects abnormal temperature, and both the smoke alarm and the temperature alarm send abnormal signals to the generator set controller, and the generator set controller sends an alarm signal to the alarm device and controls the generator set to shut down. The generator set controller sends a closing signal to the electric shutters at the air inlet and outlet, and the generator set controller also sends a start signal to the fire extinguisher release actuator to enable the fire extinguisher release actuator to control the fire extinguisher to extinguish the fire.

[0023] When the unit is operating normally, the fire protection system does not work. When the temperature inside the unit rises unexpectedly, the temperature sensor or smoke sensor detects abnormal temperature or abnormal smoke, triggering the unit alarm but not stopping the machine. When both the smoke sensor and the temperature sensor detect abnormalities, the unit is triggered to shut down, and the electric shutters at the air inlet and outlet of the soundproof box are closed to isolate the inside and outside of the generator set, avoid leakage of the fire extinguishing medium and inhibit air flow, thereby improving the fire extinguishing efficiency. After closing the shutters, the fire-fighting medium (dry powder fire extinguishing agent, carbon dioxide fire extinguishing agent, clean gas fire extinguishing agent, etc.) in the fire extinguisher is released through the fire-fighting gas actuator to quickly extinguish the fire. At the same time, the diesel generator set sends an alarm signal to remind relevant personnel.

[0024] In actual operation, when the unit is operating normally, the smoke sensor and temperature sensor monitor the smoke and temperature status inside the generator cabin at all times. At this time, the electric shutters of the inlet and outlet air vents are in the open state, and the generator set controller receives the smoke sensor and temperature sensor signals in real time, and the alarm device and the fire extinguisher release actuator do not operate; when the smoke sensor and temperature sensor inside the unit only detect smoke or abnormal temperature, the smoke sensor and temperature sensor send a signal to the generator set controller, and the unit only sends an alarm signal. Regardless of whether the alarm signal is processed, the monitoring process still runs. When a fire occurs accidentally inside the unit, the smoke sensor and temperature sensor detect that the smoke and temperature inside the cabin have reached the output alarm signal threshold, and the output signal is given to The generator set controller integrates other relevant operating information of the diesel generator set to determine whether there is a real fire inside the unit. When the generator set controller determines that the unit is really on fire, the generator set controller sends an alarm signal to the alarm device, and sends an alarm signal. The alarm device is preferably a flashing buzzer. At the same time, the generator set controller controls the unit to shut down and close the electric shutters of the air inlet and outlet. The electric shutters of the air inlet and outlet are preferably power-off closing type electric shutters, so that after the control lines of the electric shutters of the air inlet and outlet are burned out, the electric shutters of the air inlet and outlet can still be closed. After the electric shutters of the air inlet and outlet are closed, a fire-fighting medium release signal is sent to the fire extinguisher release actuator. The fire extinguisher release actuator controls the fire extinguisher to release the fire-fighting medium through mechanical transmission to extinguish the fire.

Claims

1. An automatic fire extinguishing system suitable for low-power silent diesel generator sets, characterized in that: Includes generator set controller, fire extinguisher release actuator, fire extinguisher, smoke alarm, temperature alarm, electric shutters for air inlet and outlet, and alarm device; The generator set controller is connected to the fire extinguisher release actuator, the smoke alarm, the temperature alarm, the electric shutters of the air inlet and outlet, and the alarm device; the fire extinguisher release actuator is connected to the fire extinguisher; The smoke alarm and temperature alarm monitor the smoke and temperature status of the diesel generator set in real time; when the smoke alarm detects abnormal smoke or the temperature alarm detects abnormal temperature, the smoke alarm or the temperature alarm sends an abnormal signal to the generator set controller, and the generator set controller sends an alarm signal to the alarm device, and the alarm device alarms; The smoke alarm detects abnormal smoke and the temperature alarm detects abnormal temperature, and both the smoke alarm and the temperature alarm send abnormal signals to the generator set controller, and the generator set controller sends an alarm signal to the alarm device and controls the generator set to shut down. The generator set controller sends a closing signal to the electric shutters at the air inlet and outlet, and the generator set controller also sends a start signal to the fire extinguisher release actuator to enable the fire extinguisher release actuator to control the fire extinguisher to extinguish the fire.

2. The automatic fire extinguishing system suitable for a small-power silent diesel generator set according to claim 1 is characterized in that: The electric shutters of the air inlet and outlet are specifically power-off closing type electric shutters.

3. The automatic fire extinguishing system suitable for a small-power silent diesel generator set according to claim 1 is characterized in that: The alarm device is specifically a buzzer.

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