Fire extinguishing system

Abstract

The utility model relates to a fire extinguishing system which comprises an air treatment assembly, a nitrogen adsorption assembly and a foam forming assembly, and the air treatment assembly is used for drying and filtering air introduced into a protection space; the nitrogen adsorption assembly communicates with the protection space through a pipeline and is used for introducing nitrogen into the protection space, and the air suction end of the nitrogen adsorption assembly communicates with the air outlet end of the air treatment assembly; the foam forming assembly communicates with the protection space and is used for filling foam into the protection space. The potential safety hazard of the nitrogen fire extinguishing system can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing equipment, and particularly relates to a fire extinguishing system. Background Art

[0002] At present, there is a rich variety of fire extinguishing devices on the market, and the related technologies are well-developed. However, these fire extinguishing devices all have certain problems when applied. For example, when a water-based fire extinguishing device is applied to a protected space, if there are electrical devices in the space, it will often cause damage to the devices; when a dry powder fire extinguishing device is used for fire extinguishing, it will often pollute the environment in the protected space to a large extent; the aerosol fire extinguishing device has a good effect when applied in a small space, but as the protected space increases, the fire extinguishing ability will also decline.

[0003] As an inert gas, nitrogen has very stable properties and is relatively friendly to the environment when used as a fire extinguishing medium. Therefore, it is very suitable for application in fire extinguishing devices. Traditional nitrogen fire extinguishing devices store at a high pressure, are difficult to maintain, and there are certain safety hazards. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a fire extinguishing system to solve the problem of safety hazards existing in nitrogen fire extinguishing devices.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: A fire extinguishing system includes:

[0006] An air treatment component, which is used for drying and filtering the air introduced into the protected space;

[0007] A nitrogen adsorption component, which is connected to the protected space through a pipeline and is used for introducing nitrogen into the protected space. The suction end of the nitrogen adsorption component is connected to the air outlet end of the air treatment component;

[0008] A foam forming component, which is connected to the protected space and is used for filling foam into the protected space.

[0009] On the basis of the above technical solution, the utility model can also be improved as follows.

[0010] Further, the air treatment component includes an air power component and an air drying component. The air power component is used for sucking air from the outside, and the air drying component is connected to the air outlet end of the air power component and is used for drying the sucked air.

[0011] Further, a filtering component is also arranged between the air power component and the air drying component, and the filtering component is used for filtering oil and water in the air.

[0012] Furthermore, a plurality of filter components can be arranged in parallel between the air drying component and the air power component, and between the air drying component and the nitrogen adsorption component.

[0013] Furthermore, the foam forming component includes:

[0014] A pipeline mixer for mixing water and foam liquid to form foam;

[0015] A water supply device for introducing water into the pipeline mixer;

[0016] A foam liquid supply device for introducing foam liquid into the pipeline mixer;

[0017] The pipeline mixer is simultaneously connected to the water supply device and the foam liquid supply device, and the outlet end of the pipeline mixer is connected to the protected space.

[0018] Furthermore, the fire extinguishing system further includes a control system, and the control system includes:

[0019] An oxygen concentration detection device arranged in the protected space for detecting the oxygen concentration in the protected space;

[0020] A detection linkage component arranged in the protected space for detecting the fire situation in the protected space;

[0021] A control cabinet electrically connected to the oxygen concentration detection device and the detection linkage component.

[0022] Furthermore, the air power component, the air drying component, and the nitrogen adsorption component are all electrically connected to the control system.

[0023] Furthermore, a ventilation system is also arranged in the protected space. When a fire occurs, the ventilation system is closed; when the fire is extinguished, the ventilation system is opened to replace the air in the protected space.

[0024] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0025] 1. In the present application, the nitrogen adsorption component and the foam forming component are separated, and the nitrogen adsorption component can inhale air to realize the production and generation of nitrogen, so that the fire extinguishing system of the present application is in an atmospheric pressure state when it is in a non-working state, and can provide sufficient compressed nitrogen foam for fire extinguishing when it is working, making the fire extinguishing system of the present application have lower potential safety hazards and being more convenient for maintenance;

[0026] 2. The fire extinguishing system provided by the present application can realize synchronous nitrogen supply and fire extinguishing for multiple protected spaces, improve the utilization efficiency of the fire extinguishing system, and at the same time reduce the inspection frequency and maintenance cost of the staff;

[0027] 3. The present application can achieve more intelligent fire extinguishing operations through the control system, and a ventilation system is also provided, making the process of extinguishing fire in the protected space safer and less likely to have an adverse impact on the health of the staff. Description of the Drawings

[0028] Figure 1 It is a working principle diagram of a fire extinguishing system provided by the present application;

[0029] In the drawings, the list of components represented by each reference numeral is as follows:

[0030] 1. Air treatment component; 11. Air power component; 12. Air drying component; 2. Nitrogen adsorption component; 3. Foam forming component; 31. Water supply device; 32. Foam liquid supply device; 33. Pipeline mixer; 4. Filtration component; 5. Control system; 51. Oxygen concentration detection device; 52. Detection linkage component; 53. Control cabinet; 6. Ventilation system. Detailed Embodiments

[0031] To facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0033] The present application provides a fire extinguishing system. Referring to Figure 1 , it includes an air treatment component 1, a nitrogen adsorption component 2, and a foam forming component 3. The air treatment component 1 includes an air power component 11 and an air drying component 12 for drying the inhaled air; the nitrogen adsorption component 2 provides high-pressure nitrogen for the protected space; the foam forming component 3 includes a water supply device 31, a foam liquid supply device 32, and a pipeline mixer 33. Among them, the water supply device 31 is used to introduce water into the pipeline mixer 33, the foam liquid supply device 32 is used to introduce foam liquid into the pipeline mixer 33, and the pipeline mixer 33 is used to mix water and foam liquid to form foam.

[0034] Specifically, the water supply device 31 includes a water tank and a water pump, and the foam liquid supply device 32 includes a foam liquid tank and a foam liquid pump. The air power component 11 and the air drying component 12 are connected, the air outlet end of the air drying component 12 is connected to the nitrogen adsorption component 2, and the air outlet end of the nitrogen adsorption component 2 is connected to the protected space through a pipeline.

[0035] The aerodynamic component 11 sucks in air from the outside and delivers the air to the air drying component 12. After drying, the air is delivered to the nitrogen adsorption component 2. The nitrogen adsorption component 2 filters other gases in the air and pressurizes the filtered nitrogen to form high-pressure nitrogen, which is finally transported to the protected space through a pipeline. At the same time, the water pump extracts water from the water tank, and the foam liquid pump extracts foam liquid from the foam liquid tank. The water and foam liquid are simultaneously delivered to the pipeline mixer 33, where they are fully mixed to form foam, and the foam fills the entire protected space, thereby achieving fire extinguishing.

[0036] Among them, the aerodynamic component 11 can specifically be a screw air compressor, a fan, or a high-pressure gas cylinder; the air drying component 12 can specifically be a refrigerated dryer and a pressure swing adsorber; the nitrogen adsorption component 2 can specifically be a molecular sieve, a refrigerator, and a membrane component; the water tank can specifically be a fire hydrant, a water pool, or a water tank; the water pump can specifically be a centrifugal pump, a booster pump, or a fire hydrant; the foam liquid pump can specifically be a centrifugal pump, nitrogen or air pressurization, or a Venturi negative pressure system.

[0037] Furthermore, a filtering component 4 for filtering impurities in the air is also provided between the aerodynamic component 11 and the air drying component 12. The filtering component 4 can specifically be an oil filter or a membrane filter, and the oil and water in the air are pre-filtered through the filtering component 4 to improve the working efficiency of the air drying component 12.

[0038] In one embodiment, to improve the filtering efficiency of the filtering component 4, multiple filtering components 4 are arranged in parallel between the air drying component 12 and the aerodynamic component 11, and between the air drying component 12 and the nitrogen adsorption component 2 to reduce the moisture in the air.

[0039] In another embodiment, the above system can simultaneously input nitrogen and foam into multiple protected spaces to improve the utilization rate of the equipment.

[0040] The fire extinguishing system of the present application further includes a control system 5. The control system 5 includes a control cabinet 53, an oxygen concentration detection device 51 arranged in the protected space for detecting the oxygen concentration, and a detection linkage component 52 arranged in the protected space for detecting the fire situation in the protected space. Each component of the control system 5 is electrically connected. The oxygen concentration detection device 51 can also be replaced with a nitrogen concentration detector, and the detection linkage component 52 can specifically be a smoke detector, a temperature detector, and a composite detector for linkage detection.

[0041] In one embodiment, the aerodynamic component 11, the air drying component 12, the nitrogen adsorption component 2, the water tank, the water pump, the foam liquid tank, and the foam liquid pump are all electrically connected to the control system 5. When the detection linkage component 52 in the protected space detects that the gas concentration in the protected space exceeds the standard and alarms, the detection linkage component 52 sends a signal to the control cabinet 53, and the oxygen concentration detection device 51 starts to detect the oxygen concentration in the protected space. At the same time, the control cabinet 53 controls the sequential startup of the aerodynamic component 11, the air drying component 12, and the nitrogen adsorption component 2, so that the pipeline mixer 33 continuously conveys nitrogen into the protected space.

[0042] In another embodiment, the aerodynamic component 11, the air drying component 12, and the nitrogen adsorption component 2 are not electrically connected to the control system 5, but are connected to a separate manual control system. When the detection linkage component 52 in the protected space detects a fire in the protected space, the detection linkage component 52 sends an alarm signal and simultaneously starts the oxygen concentration detection device 51 to detect the oxygen concentration in the protected space. After the relevant personnel receive the alarm signal, they start the manual control system, and the above system works to implement suppression and fire extinguishing, reducing the occurrence and expansion of the fire.

[0043] A ventilation system 6 is also provided in the protected space. When the detection linkage component 52 in the protected space detects a fire in the protected space, the ventilation system 6 is closed, and the aerodynamic component 11 inhales air and conveys nitrogen into the protected space after drying and filtering to implement fire extinguishing. When the fire is extinguished, the above system stops working, the ventilation system 6 is opened, the air inside and outside the protected space is replaced, and through the detection of the oxygen concentration detection device 51, when the concentration reaches a certain value, the relevant personnel enter the protected space to handle the cleaning work at the scene.

[0044] In order to prevent the ventilation system 6 from causing the fire in the protected space to reignite during the process of replacing air, the opening time of the ventilation system 6 can only be opened after observing that the value of the combustible gas detector no longer rises or shows a steady downward trend, or when the temperature detected by the temperature sensor in the protected space shows a steady downward trend or approaches the outdoor temperature.

[0045] Based on this, the door at the entrance of the protected space is electrically connected to the control system 5, and the door can only be opened when the value of the oxygen concentration detection device 51 in the protected space rises above 15%, and personnel can enter the protected space when the oxygen concentration reaches above 19.5%.

[0046] In addition to the exhaust system in the above protected space, openings or exhaust valves can also be provided to squeeze out the air in the protected space after nitrogen and foam enter the protected space.

[0047] In another embodiment, since the molecular mass and density of nitrogen are both smaller than those of air, the intake pipe position of the nitrogen adsorption assembly 2 can also be lower than the position of the opening or the exhaust valve.

[0048] Under normal circumstances, the entire system is in an atmospheric pressure dormant state, and only the detection linkage assembly 52 operates normally. When a fire occurs in the protected space, the detection linkage assembly 52 in the protected space alarms and sends a signal to the control cabinet 53. Through the control cabinet 53, the exhaust valve in the protected space is closed, and the nitrogen adsorption system is started. The water pump and the foam liquid pump are started, and the air power assembly 11 starts to work to inflate and pressurize the system, so that nitrogen with a purity exceeding 95% is continuously sent into the protected space. At the same time, the entire protected space is filled with foam to reduce the air in the protected space.

[0049] When the handler arrives at the scene and confirms that there is no abnormality at the fault point, the nitrogen production assembly, the water pump, and the foam liquid pump are manually stopped in the control cabinet 53, and the exhaust system in the scene is started to replace the nitrogen in the scene and clean the foam in the protected space to ensure the safety of the personnel entering the protected space. After confirming that all fault handling is completed, the nitrogen production assembly, the water pump, and the foam liquid pump are restored from the stopped state to the automatic state in the control cabinet 53, and at the same time, the materials in the water tank and the foam liquid tank are replenished.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fire extinguishing system, characterized in that, Including: An air treatment component (1) for drying and filtering the air introduced into the protected space; A nitrogen adsorption component (2) communicated with the protected space through a pipeline for introducing nitrogen into the protected space, and the suction end of the nitrogen adsorption component (2) is communicated with the outlet end of the air treatment component (1); A foam forming component (3) communicated with the protected space for filling foam into the protected space.

2. The fire extinguishing system according to claim 1, characterized in that, The air treatment component (1) includes an air power component (11) and an air drying component (12). The air power component (11) is used for sucking air from the outside, and the air drying component (12) is communicated with the outlet end of the air power component (11) for drying the sucked air.

3. The fire extinguishing system according to claim 2, wherein A filtering component (4) is further arranged between the air power component (11) and the air drying component (12), and the filtering component (4) is used for filtering oil and water in the air.

4. A fire extinguishing system according to claim 3, characterized in that, A plurality of filtering components (4) can be arranged in parallel between the air drying component (12) and the air power component (11), and between the air drying component (12) and the nitrogen adsorption component (2).

5. A fire extinguishing system according to claim 1, characterized in that, The foam forming component (3) includes: A pipeline mixer (33) for mixing water and foam liquid to form foam; A water supply device (31) for introducing water into the pipeline mixer (33); A foam liquid supply device (32) for introducing foam liquid into the pipeline mixer (33); The pipeline mixer (33) is simultaneously communicated with the water supply device (31) and the foam liquid supply device (32), and the outlet end of the pipeline mixer (33) is communicated with the protected space.

6. An extinguishing system according to claim 2, characterized in that, The fire extinguishing system further includes a control system (5), and the control system (5) includes: An oxygen concentration detection device (51) arranged in the protected space for detecting the oxygen concentration in the protected space; A detection linkage component (52) arranged in the protected space for detecting the fire situation in the protected space; A control cabinet (53) electrically connected to the oxygen concentration detection device (51) and the detection linkage component (52).

7. An extinguishing system according to claim 6, characterized in that, The air power component (11), the air drying component (12) and the nitrogen adsorption component (2) are all electrically connected to the control system (5).

8. A fire extinguishing system according to claim 1, wherein A ventilation system (6) is further arranged in the protected space. When a fire occurs, the ventilation system (6) is closed; when the fire is extinguished, the ventilation system (6) is opened to replace the air in the protected space.

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