Fire extinguishing system of wind generating set and wind driven generator
By setting up multiple fire protection areas and modules in the wind turbine unit, an automated fire protection system is realized, which solves the problem of timely handling of fire accidents in the wind turbine unit, improves fire protection efficiency and safety, and reduces losses and environmental pollution.
Patent Information
- Application Number
- CN202420054198.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-09
AI Technical Summary
Fire accidents in wind turbines are difficult to deal with in a timely manner, which poses huge safety hazards, and burned and damaged components may pose a threat to the environment and personnel. The existing technology cannot achieve comprehensive monitoring of the unit and precise automatic fire protection.
Design a fire protection system for wind turbines, including multiple fire protection areas, each area is equipped with smoke detection module, temperature detection module, controller module and fire extinguishing module, to achieve automatic fire protection through electrical connections, when smoke or temperature reaches a threshold , the system automatically sprays fire extinguishing agent, combined with the area control module and sound and light prompt function, to ensure accurate and timely fire response.
Comprehensive monitoring and automated fire protection of wind turbines have been achieved, fire protection efficiency has been improved, losses have been reduced, and safety and environmental protection have been ensured.
Smart Images
Figure CN222218468U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of fire protection systems, and in particular to a fire protection system for a wind turbine generator set and a wind turbine generator. Background Art
[0002] Wind turbines are expensive to build. Once a fire occurs in a wind turbine, in addition to huge economic losses, it will also pose a huge hidden danger to the safety of the power grid. The burned and damaged wind turbine components will fall and drift from high altitudes, posing a safety threat to the surrounding environment and personnel. The various toxic and harmful substances produced by the combustion of the unit will also cause serious pollution to the atmosphere and water resources environment.
[0003] However, most wind turbine generator sets only place manual fire-fighting equipment in the cabin. For an unattended wind turbine generator cabin, it is difficult to make a timely and effective fire-fighting response when a fire accident occurs, which poses a huge safety hazard.
[0004] Therefore, there is a need for a fire prevention technology for the wind turbine cabin, which can comprehensively monitor the unit and carry out accurate automatic fire fighting according to the fire location when a fire accident occurs. Utility Model Content
[0005] In view of the above problems in the prior art, the present application provides a wind turbine fire protection system and a wind turbine, which can comprehensively monitor the unit and perform accurate automatic and active fire protection according to the fire location when a fire accident occurs, thereby avoiding losses of the wind turbine.
[0006] To achieve the above-mentioned object, the first aspect of the present application provides a wind turbine fire protection system, comprising at least two fire protection areas; each of the fire protection areas comprises a smoke detection module, a temperature detection module, a controller module and a fire extinguishing module; the controller module is electrically connected to the smoke detection module, the temperature detection module and the fire extinguishing module;
[0007] The smoke detection module is used to send an alarm signal to the controller module when the smoke information in the fire protection area reaches a preset smoke threshold;
[0008] The temperature sensing detection module is used to send an alarm signal to the controller module when detecting that the temperature information of the fire protection area reaches a preset temperature threshold;
[0009] The controller module is used to receive alarm signals from the smoke detection module and the temperature detection module, and send a fire extinguishing signal to the fire extinguishing module;
[0010] The fire extinguishing module is used to operate to spray the fire extinguishing agent upon receiving the fire extinguishing signal.
[0011] In this embodiment, by setting up multiple areas and configuring monitoring and fire-fighting facilities, the wind turbine generator set can be comprehensively monitored. When a fire occurs, the fire can be automatically and accurately extinguished, which greatly improves the monitoring accuracy and fire-fighting efficiency, and minimizes and avoids losses to the wind turbine generator set.
[0012] A possible implementation of the first aspect includes:
[0013] The at least two fire protection areas are arranged at different positions of the wind turbine generator set.
[0014] In this embodiment, by setting up fire fighting areas at different positions of the unit, each fire fighting area and protection area is independently detected and extinguished without affecting other protection areas, thus avoiding the impact on equipment in the safe area when taking fire fighting and fire fighting measures.
[0015] As a possible implementation manner of the first aspect, the temperature sensing detection module includes at least two levels of temperature sensing detection, which is used to send an alarm signal to the controller module at different temperatures.
[0016] In this embodiment, through the secondary temperature gradient redundant detection, both the sensitivity and the reliability of fire detection are taken into account.
[0017] As a possible implementation manner of the first aspect, the at least two levels of temperature sensing detection include temperature-sensitive magnetic power generation detection and thermal wire detection.
[0018] As a possible implementation manner of the first aspect, the controller module includes a PLC.
[0019] As a possible implementation manner of the first aspect, the fire extinguishing module is configured with a solenoid valve; the solenoid valve is configured to be activated to spray the fire extinguishing agent upon receiving the fire extinguishing signal.
[0020] As a possible implementation of the first aspect, the method further includes: a regional control module electrically connected to the smoke detection module, the temperature detection module, the controller module, and the fire extinguishing module;
[0021] The area control module is used to obtain data information of the smoke detection module, the temperature detection module and the controller module, and to control the fire extinguishing module according to the received fire extinguishing instruction.
[0022] In this implementation, by setting up a regional control module, the combination of automatic fire fighting and active fire fighting is achieved, further improving the efficiency of monitoring and taking fire fighting measures.
[0023] As a possible implementation manner of the first aspect, the area control module includes:
[0024] A display unit, used to display the data information;
[0025] A touch sensing unit, configured on the display unit and used to detect a user's touch input;
[0026] a processor, electrically connected to the display unit and the touch sensing unit, and configured to receive touch input data from the touch sensing unit and perform corresponding operations according to the touch input data;
[0027] The sound and light prompt unit is electrically connected to the processor and is used for performing sound and light prompts according to the instructions of the processor.
[0028] As a possible implementation manner of the first aspect, the regional control module includes a PC.
[0029] In this embodiment, the sound and light prompts are provided so that the user or manager can intuitively know the situation inside the unit, which is conducive to taking fire prevention measures in time.
[0030] A second aspect of the present application provides a wind turbine, comprising a wind turbine body, wherein a wind turbine fire protection system as described above is arranged in a main cabin of the wind turbine body; the wind turbine fire protection system is used to perform fire monitoring on the main cabin of the wind turbine body.
[0031] These and other aspects of the present application will become more apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS
[0032] The following further illustrates the various features of the present application and the connections between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, and some features are not shown in actual proportion. Some drawings may omit features that are conventional in the field involved in the present application and are not necessary for the present application, or additional features that are not necessary for the present application may be shown. The combination of the various features shown in the accompanying drawings is not intended to limit the present application. In addition, throughout this specification, the same figure numerals refer to the same content. The specific description of the drawings is as follows:
[0033] Figure 1 It is a structural schematic diagram of a wind turbine fire protection system provided in an embodiment of the present application. DETAILED DESCRIPTION
[0034] The technical solution provided by the present application is further described below with reference to the accompanying drawings and examples. It should be understood that the system structure and business scenarios provided in the examples of the present application are mainly to illustrate the possible implementation methods of the technical solution of the present application and should not be interpreted as the only limitation on the technical solution of the present application. It is known to those of ordinary skill in the art that with the evolution of the system structure and the emergence of new business scenarios, the technical solution provided by the present application is also applicable to similar technical problems.
[0035] It should be understood that the fire protection solution for wind turbine generator set provided in the embodiment of the present application includes a fire protection system for wind turbine generator set and a wind turbine generator, etc. Since the principles of solving the problems in these technical solutions are the same or similar, some repetitions may not be repeated in the introduction of the following specific embodiments, but it should be regarded as that these specific embodiments have been referenced to each other and can be combined with each other.
[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application. In the event of any inconsistency, the meaning described in this specification or the meaning derived from the contents recorded in this specification shall prevail. In addition, the terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application. In order to accurately describe the technical content in this application and to accurately understand the present application, the following explanations or definitions are given to the terms used in this specification before describing the specific implementation methods:
[0037] 1) Passive normally open signal: refers to a signal that remains open without external input. This signal does not require external current or voltage input to remain open.
[0038] Figure 1 Schematic diagram of the structure of the wind turbine fire protection system provided by the embodiment of the present application. Figure 1 As shown, the fire protection system of the wind turbine generator set provided in this embodiment includes: at least two fire protection areas. Each fire protection area includes a smoke detection module, a temperature detection module, a controller module and a fire extinguishing module; the controller module is electrically connected to the smoke detection module, the temperature detection module and the fire extinguishing module.
[0039] Among them, at least two fire protection areas can be set up in the areas prone to fire in the wind turbine generator set according to the specific structure of the wind turbine generator set, as well as experience and common sense, for example, each electrical cabinet can be divided into a fire protection area. The established fire protection areas can be independent of each other, and each fire protection area and protection area in the wind turbine generator set can be detected and extinguished separately without affecting other protection areas. This avoids the impact on equipment in safe areas when taking fire extinguishing and fire fighting measures.
[0040] The smoke detection module is used to send an alarm signal to the controller module when the smoke information in the fire protection area reaches the preset smoke threshold. In some embodiments, an infrared smoke detector can be used, such as a light scattering smoke detector, a secondary reflection smoke detector, etc., which has the characteristics of sensitive and accurate on-site parameter collection. In addition, this type of smoke detector also has an advanced MCU microprocessor built in, which can not only automatically detect smoke, but also send the detected data to the controller module.
[0041] Smoke detectors, devices, and equipment in smoke detection modules can use passive normally open signals. When the smoke detector is in normal working condition, it is a passive normally open signal. When there is no smoke, the output contacts of the detector remain open and do not transmit voltage / current signals. Only when the detector detects smoke will the output contacts close and transmit signals, thereby sending an alarm signal to the controller module. It does not require external current or voltage input to remain open, and only generates a closed signal when smoke is detected.
[0042] The temperature sensing detection module is used to send an alarm signal to the controller module when the temperature information of the fire protection area reaches a preset temperature threshold; the temperature sensing detection module includes at least two levels of temperature sensing detection, which are used to send an alarm signal to the controller module at different temperatures. When the temperature sensing detection module detects a fire, it can output an alarm signal to the controller module, and the signal type is a passive normally open signal.
[0043] This implementation adopts a combination of point detection, line detection, and secondary temperature redundant detection: for example, point detection using temperature-sensitive magnetic generation detection and line detection using heat-sensitive line detection are combined and arranged above or on the side walls of the fire-prone points in each fire protection area. This implementation adopts secondary temperature gradient redundant detection, which takes into account both the sensitivity and reliability of fire detection.
[0044] In some embodiments, the alarm temperature of the temperature-sensitive magnetic power generation detection can be set to be lower, and the alarm temperature of the line detection of the thermal line detection can be set to be higher. In the secondary temperature redundancy detection in this embodiment, the temperature-sensitive magnetic power generation detection can ensure the sensitivity of temperature detection when the lower temperature detection alarm is used, and the thermal line detection can reduce the cost when the higher temperature detection alarm is used.
[0045] The controller module is used to receive the alarm signals from the smoke detection module and the temperature detection module, and send the fire extinguishing signal alarm signal to the fire extinguishing module. The controller module can be a cabinet PLC of an electrical cabinet, which is equipped with digital input and output terminals. When receiving the alarm signals from the temperature detector and the smoke detector, it can automatically send the fire extinguishing signal to the fire extinguishing module to realize automatic fire control.
[0046] For example, in the embodiment of the present application, when the temperature detector and the smoke detector do not send an alarm signal, the input end of the PLC is at a low level (the electrical signal is 0), and when the temperature detector and the smoke detector send an alarm signal, the input end of the PLC is at a high level (the electrical signal is 1). Then, according to the trigger logic configured in the PLC, a high level is output when a high level is received, and at this time, the output end of the PLC outputs a high level to the fire extinguishing module.
[0047] The fire extinguishing module can use hot aerosol fire extinguishing devices, solid nitrogen spray devices, etc., and is equipped with a solenoid valve, which can be fixedly installed in various fire-prone parts of electrical cabinets. When the solenoid valve of the fire extinguishing device receives an electrical signal from the output end of the PLC, the solenoid valve is triggered to open and the fire extinguishing agent is sprayed to extinguish the fire. In addition, after the fire extinguishing device is sprayed, a spraying completion signal can be output to the controller module, and the signal type is a passive normally open signal.
[0048] Among them, the fire extinguishing agent dosage of the hot aerosol fire extinguishing device is 300g, the effective spraying time is ≤30S, the spraying delay time is ≤5S, and the fire extinguishing efficiency is 100g / m 3 Solid nitrogen propellant is better than the gas-driven agent used in other similar products. It has the characteristics of low noise, small recoil, long duration, and can be used for full flooding protection in designated areas. In addition, due to the complex environmental factors and inconvenient maintenance, in order to prevent the impact of environmental changes on product storage pressure, non-pressure storage fire extinguishing equipment can be used.
[0049] In this embodiment, a fire extinguishing device designed for fire-prone locations in the electrical cabinet is used and arranged at the fire-prone locations, so as not to cause secondary damage to the protection equipment and facilities.
[0050] In some embodiments, the fire protection system of the wind turbine generator set may further include a regional control module electrically connected to the smoke detection module, the temperature detection module, the controller module and the fire extinguishing module. The regional control module may be arranged in a manned control room or a control cabinet.
[0051] The regional control module has an interface for data communication and a display unit such as an LCD screen display, which is used to display the information obtained by the smoke detection module and the temperature detection module; a touch sensing unit, which is configured on the display unit and is used to detect the user's touch input; a processor, which is electrically connected to the display unit and the touch sensing unit, is used to receive touch input data from the touch sensing unit and perform corresponding operations according to the touch input data. The regional control module can be a server, a PC, etc.
[0052] Specifically, in some embodiments, the regional control module can also be a device specially designed for managing the fire protection system of the wind turbine generator set of the present application, and the device has an LCD screen for human-computer interaction for display; an indicator light for indicating the operating status of the fire protection system of the generator set, for example, 5 LED lights for operation, fault, high temperature, spraying, sound and light alarm; user operation buttons, such as system start button, system shutdown button, fire extinguishing module start button, fire extinguishing module shutdown button, etc. In addition, the device can be powered by 24VDC, which can be convenient for configuring backup power supply, batteries, etc.; for data communication bus, it can be configured with RS485 interface, emergency start interface, emergency stop interface, fault feedback interface, start feedback interface, etc., so as to facilitate statistical analysis of system data, etc.
[0053] When the user activates the fire extinguishing module by operating a button, touching, etc., the processor generates a corresponding signal and sends it to the PLC (controller module) through the configured interface. For example, the signal for activating the fire extinguishing module is a high-level signal (1). When the PLC receives the high-level signal, it outputs a high level to the fire extinguishing module according to the configured trigger logic, thereby activating the fire extinguishing module.
[0054] In addition, in some embodiments, when the ambient temperature is detected to be ≥93°C through temperature-sensitive magnetic power generation, the temperature-sensitive magnetic power generation device will be activated to send an alarm signal to the controller module and the regional control module. At the same time, the high-temperature indicator light of the regional control module will light up and the buzzer and other sound alarm units will work. The on-duty personnel can observe the various parameters of the unit and real-time video images through the display, and take manual fire-fighting measures when necessary.
[0055] When the thermistor detects a temperature ≥175℃ or senses an open flame, the controller receives an alarm signal and sends a signal to activate the fire extinguishing device for active fire extinguishing, as well as manual fire extinguishing.
[0056] In some embodiments, fire-fighting devices can be installed in accordance with relevant specifications and experience, and system components such as ultra-fine dry powder fire extinguishing devices and temperature-sensitive magnetic power generation components can be installed at appropriate fixed points inside the cabin. Suitable fixed points are provided in the cabin control cabinet and tower base cabinet to install hot aerosol fire extinguishing devices and temperature-sensitive magnetic power generation components. Fire-fighting cables are arranged in the cabin without affecting the normal operation of the original components, so as to be used for electrical connections between various units and modules.
[0057] By setting up multiple areas and configuring monitoring and fire-fighting facilities, this application can automatically monitor the wind turbines in a comprehensive manner. When a fire occurs, it can also automatically and accurately extinguish the fire, greatly improving the monitoring accuracy and fire-fighting efficiency, and minimizing and avoiding losses to wind turbines.
[0058] A second aspect of the present application provides a wind turbine, comprising: a wind turbine body, wherein a wind turbine fire protection system as described above is arranged in a main cabin of the wind turbine body; and the wind turbine fire protection system is used to perform fire monitoring on the main cabin of the wind turbine body.
[0059] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific structure of the wind turbine described above can refer to the corresponding introduction in the aforementioned generator set fire protection system embodiment, and will not be repeated here.
[0060] In the above description, the term "comprising" used in the specification and claims should not be interpreted as being limited to what is listed thereafter; it does not exclude other elements or steps. Therefore, it should be interpreted as specifying the presence of the features, integers, steps or components mentioned, but does not exclude the presence or addition of one or more other features, integers, steps or components and groups thereof. Therefore, the expression "a device comprising means A and B" should not be limited to a device consisting only of components A and B.
[0061] References to "one embodiment" or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present application. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places in this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the particular features, structures, or characteristics can be combined in any appropriate manner, as would be apparent to one of ordinary skill in the art from this disclosure.
[0062] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present application, all of which belong to the scope of protection of the present application.
Claims
1. A fire protection system for a wind turbine generator set, characterized in that: It includes at least two fire protection areas; each of the fire protection areas includes a smoke detection module, a temperature detection module, a controller module and a fire extinguishing module; the controller module is electrically connected to the smoke detection module, the temperature detection module and the fire extinguishing module; The smoke detection module is used to send an alarm signal to the controller module when the smoke information in the fire protection area reaches a preset smoke threshold; The temperature sensing detection module is used to send an alarm signal to the controller module when detecting that the temperature information of the fire protection area reaches a preset temperature threshold; The controller module is used to receive alarm signals from the smoke detection module and the temperature detection module, and send a fire extinguishing signal to the fire extinguishing module; The fire extinguishing module is used to operate to spray the fire extinguishing agent upon receiving the fire extinguishing signal.
2. The system according to claim 1, characterized in that include: The at least two fire protection areas are arranged at different positions of the wind turbine generator set.
3. The system according to claim 1, characterized in that The temperature sensing detection module includes at least two levels of temperature sensing detection, which is used to send an alarm signal to the controller module at different temperatures.
4. The system according to claim 3, characterized in that The at least two levels of temperature sensing detection include temperature-sensitive magnetic power generation detection and thermal wire detection.
5. The system according to claim 1, characterized in that The controller module includes a PLC.
6. The system according to claim 1, characterized in that The fire extinguishing module is equipped with a solenoid valve; the solenoid valve is used to operate to spray the fire extinguishing agent when receiving the fire extinguishing signal.
7. The system according to any one of claims 1 to 6, characterized in that: Also includes: A regional control module, electrically connected to the smoke detection module, the temperature detection module, the controller module and the fire extinguishing module; The area control module is used to obtain data information of the smoke detection module, the temperature detection module and the controller module, and to control the fire extinguishing module according to the received fire extinguishing instruction.
8. The system according to claim 7, characterized in that The regional control module includes: A display unit, used to display the data information; A touch sensing unit, configured on the display unit and used to detect a user's touch input; a processor, electrically connected to the display unit and the touch sensing unit, and configured to receive touch input data from the touch sensing unit and perform corresponding operations according to the touch input data; The sound and light prompt unit is electrically connected to the processor and is used for performing sound and light prompts according to the instructions of the processor.
9. The system according to claim 7, characterized in that The regional control module includes a PC.
10. A wind turbine generator, comprising a wind turbine generator body, characterized in that: A wind turbine generator set fire protection system according to any one of claims 1 to 9 is arranged in the main cabin of the wind turbine body; The fire protection system of the wind turbine generator set is used to monitor the fire protection of the main cabin of the wind turbine generator body.