CN210751026U - Nitrogen fire extinguishing system suitable for airtight space - Google Patents
Nitrogen fire extinguishing system suitable for airtight space Download PDFInfo
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- CN210751026U CN210751026U CN201921134337.6U CN201921134337U CN210751026U CN 210751026 U CN210751026 U CN 210751026U CN 201921134337 U CN201921134337 U CN 201921134337U CN 210751026 U CN210751026 U CN 210751026U
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Abstract
The utility model discloses a nitrogen gas fire extinguishing systems suitable for relative airtight space, including control system, nitrogen generator, annotate the air valve, annotate nitrogen valve, pipeline, control flap, relative airtight space, electric window, spout, smoke and fire detector, audible and visual alarm, oxygen sensor. The control system starts the nitrogen making machine to inject nitrogen into a fire scene for fire extinguishment when detecting a fire, stops injecting nitrogen after the fire is extinguished, and starts injecting air to ensure that the oxygen content in the scene meets the requirement of entering personnel, so that the problem of the fire scene is solved as soon as possible, and the danger that the personnel are suffocated due to high nitrogen concentration and low oxygen concentration is avoided.
Description
Technical Field
The utility model belongs to the technical field of the fire control, especially, nitrogen gas fire extinguishing systems suitable for airtight space.
Background
Nitrogen fire extinguishment has been applied in the field of coal mines in China for many years and achieves good effects. In recent years, the application of nitrogen fire extinguishing technology is gradually developed in other fire extinguishing fields, and a plurality of technologies are available, but most of the technologies are simple and directly supply air to space places by nitrogen making devices, and the nitrogen is injected to extinguish fire when fire occurs, so that the intelligent control function is not provided, and the safety treatment measures for people to enter the scene after fire extinguishment are not taken into consideration. For example, the invention patent with application publication number CN 109999394 a: when a protection area catches fire, an electric valve on a nitrogen pipeline of a non-firing protection area is closed in a linkage mode through a fire detection signal, an electric valve on the nitrogen pipeline of the firing protection area is opened simultaneously, and 2-3 nitrogen supply devices are opened to spray nitrogen to the firing protection area simultaneously to extinguish fire. This technique does not take into account the risk that a high concentration of nitrogen in the field after the fire has extinguished may result in suffocation of personnel entering the field. There is also utility model with patent number CN 203139469U: an intelligent nitrogen injection fire extinguishing system is characterized in that a nitrogen storage tank injects nitrogen into a fire scene when a fire occurs, and a nitrogen making device is started to inflate the nitrogen storage tank when the fire is not extinguished so as to ensure that the nitrogen supply on the scene meets the fire extinguishing requirement. This technique needs certain nitrogen gas storage tank to store for a long time, need to keep certain pressure in the pipeline, and there is the risk that the nitrogen gas pipeline revealed in this kind of mode, probably causes peripheral personnel in case to reveal and suffocates because of oxygen concentration reduces, and the reserves of nitrogen gas storage tank is limited moreover, does not necessarily satisfy the requirement of putting out a fire, and the nitrogen gas storage tank still need carry out annual inspection as pressure vessel every year, and this technique also does not consider the risk that on-the-spot nitrogen gas concentration highly exists after the nitrogen gas is put out a fire.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem that solve provides a nitrogen gas fire extinguishing systems suitable for airtight space, including control system, nitrogen generator, annotate the air valve, annotate nitrogen valve, pipeline, control flap, airtight space, electric window, spout, smoke and fire detector, audible-visual annunciator, oxygen sensor.
The nitrogen making machine is provided with an air outlet and a nitrogen outlet, the air outlet is connected with an air injection valve, the nitrogen outlet is connected with a nitrogen injection valve, the air injection valve and the nitrogen injection valve are connected in parallel to a pipeline, the pipeline is connected with a nozzle through a control valve, and an electric window, the nozzle, a smoke detector, an audible and visual alarm and an oxygen sensor are arranged in a closed space.
The control system is respectively connected with the electric window, the smoke detector, the audible and visual alarm and the oxygen sensor through signal wires.
The utility model has the advantages that: the control system starts the nitrogen making machine to inject nitrogen into a fire scene for fire extinguishment when detecting a fire, stops injecting nitrogen after the fire is extinguished, and starts injecting air to ensure that the oxygen content in the scene meets the requirement of personnel entering the scene, so that the problem of the fire scene is solved as soon as possible, and the danger of suffocation of the personnel due to high nitrogen concentration is avoided.
Drawings
FIG. 1 is a view showing the construction of the present invention;
in the figure: 1. a control system; 2. a nitrogen making machine; 3. an air injection valve; 4. a nitrogen injection valve; 5. a pipeline; 6. a control valve; 7. sealing the space; 8. a motorized window; 9. a spout; 10. a smoke detector; 11. an audible and visual alarm; 12. an oxygen sensor; 201. an air outlet; 202. and (4) a nitrogen outlet.
Detailed Description
The present invention will be further described with reference to the following drawings and examples, but the present invention is not limited thereto.
As shown in figure 1, when a fire occurs, a fire signal is transmitted to a control system 1 through a signal line after a fire detector 10 detects that the fire is started, the control system 1 controls an audible and visual alarm 11 to give out audible and visual alarm through the signal line, a nitrogen making machine 2 is started, a nitrogen injection valve 4 and a control valve 6 are opened, nitrogen produced by the nitrogen making machine is sprayed out from a nozzle 9 through a nitrogen outlet 202, the nitrogen injection valve 4, the control valve 6 and a pipeline 5, and is injected into a fire scene of a closed space 7 to extinguish the fire. After the fire is extinguished, the oxygen sensor 12 detects the oxygen concentration on site and transmits the oxygen concentration information to the control system 1, if the oxygen concentration is lower than the set value, the control system 1 opens the air injection valve 3 and closes the nitrogen injection valve 4, and the compressed air output by the nitrogen making machine 2 is injected into the closed space 7 through the air injection valve 3, the control valve 6, the pipeline 5 and the nozzle 9, so as to achieve the purpose of improving the oxygen content. When the oxygen sensor 12 detects that the field oxygen concentration reaches a set value, the control system stops the nitrogen making machine, stops the acousto-optic alarm and closes each valve.
The above is an embodiment of the present invention, and not therefore limiting the application claims of the present invention, all applications of the equivalent structural changes made by the description and the drawings are included in the protection scope of the present invention.
Claims (2)
1. The utility model provides a nitrogen gas fire extinguishing systems suitable for airtight space, includes control system (1), nitrogen generator (2), annotates air valve (3), annotates nitrogen valve (4), pipeline (5), control flap (6), relative airtight space (7), electric window (8), spout (9), smoke and fire detector (10), audible-visual annunciator (11), oxygen sensor (12), its characterized in that: nitrogen generator (2) are equipped with air outlet (201), nitrogen outlet (202), air outlet (201) are connected with annotating air valve (3), nitrogen outlet (202) are connected with annotating nitrogen valve (4), annotate air valve (3) and annotate nitrogen valve (4) parallel connection to pipeline (5), pipeline (5) are connected with spout (9) through control flap (6), electric window (8), spout (9), smoke and fire detector (10), audible-visual annunciator (11), oxygen sensor (12) are arranged in relative airtight space (7).
2. A nitrogen fire suppression system for enclosed spaces as defined in claim 1, wherein: the control system (1) is respectively connected with the electric window (8), the smoke detector (10), the audible and visual alarm (11) and the oxygen sensor (12) through signal lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921134337.6U CN210751026U (en) | 2019-07-19 | 2019-07-19 | Nitrogen fire extinguishing system suitable for airtight space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921134337.6U CN210751026U (en) | 2019-07-19 | 2019-07-19 | Nitrogen fire extinguishing system suitable for airtight space |
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| Publication Number | Publication Date |
|---|---|
| CN210751026U true CN210751026U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921134337.6U Active CN210751026U (en) | 2019-07-19 | 2019-07-19 | Nitrogen fire extinguishing system suitable for airtight space |
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| CN (1) | CN210751026U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156397A (en) * | 2020-09-28 | 2021-01-01 | 阜新金昊空压机有限公司 | Fire prevention and extinguishing system and fire extinguishing method thereof |
| CN113509658A (en) * | 2021-07-07 | 2021-10-19 | 上海格创机电设备成套有限公司 | Automatic fire extinguishing system and method for chemical supply cabinet |
| CN115569323A (en) * | 2022-10-18 | 2023-01-06 | 广东省俊耀控股有限公司 | Intelligent power distribution room safety monitoring control system |
-
2019
- 2019-07-19 CN CN201921134337.6U patent/CN210751026U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156397A (en) * | 2020-09-28 | 2021-01-01 | 阜新金昊空压机有限公司 | Fire prevention and extinguishing system and fire extinguishing method thereof |
| CN113509658A (en) * | 2021-07-07 | 2021-10-19 | 上海格创机电设备成套有限公司 | Automatic fire extinguishing system and method for chemical supply cabinet |
| CN115569323A (en) * | 2022-10-18 | 2023-01-06 | 广东省俊耀控股有限公司 | Intelligent power distribution room safety monitoring control system |
| CN115569323B (en) * | 2022-10-18 | 2023-10-20 | 广东省俊耀控股有限公司 | Intelligent power distribution room safety monitoring control system |
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