CN-121987998-A - Double-gas-group intelligent fire extinguishing device

CN121987998ACN 121987998 ACN121987998 ACN 121987998ACN-121987998-A

Abstract

The invention discloses a double-gas-group intelligent fire extinguishing device, which belongs to the technical field of fire-fighting equipment and comprises a liquid nitrogen storage tank, a liquid nitrogen liquid outlet pipe, a first air release valve, a liquid nitrogen gasification device, a second air release valve, a nitrogen remote control valve group, a third air release valve, a nitrogen manual control valve, a pipeline, a sensor, an application area, a high-pressure mixer, a carbon dioxide manual control valve, a fourth air release valve, a carbon dioxide remote control valve group, a fifth air release valve, a liquid carbon dioxide gasification device, a sixth air release valve, a liquid carbon dioxide liquid outlet pipe and a liquid carbon dioxide storage tank. The double-gas-group intelligent fire extinguishing device combines low-cost carbon dioxide with nitrogen, further improves the range of carbon dioxide, shortens the emergency reaction time, has low raw material cost and is beneficial to wide popularization and application.

Inventors

ZHANG BO
ZHANG ZEHUA
XU YAN

Assignees

山东明晟环保科技有限公司

Dates

Publication Date: 20260508
Application Date: 20241105

Claims (10)

1. The double-gas-group intelligent fire extinguishing device is characterized by comprising a liquid nitrogen storage tank, a liquid nitrogen liquid outlet pipe, a first air release valve, a liquid nitrogen gasification device, a second air release valve, a nitrogen remote control valve group, a third air release valve, a nitrogen manual control valve, a pipeline, an inductor, an application area, a high-pressure mixer, a carbon dioxide manual control valve, a fourth air release valve, a carbon dioxide remote control valve group, a fifth air release valve, a liquid carbon dioxide gasification device, a sixth air release valve, a liquid carbon dioxide liquid outlet pipe and a liquid carbon dioxide storage tank; The liquid nitrogen storage tank is connected with a first air release valve through a liquid nitrogen liquid outlet pipe, the first air release valve is connected with the inlet end of the liquid nitrogen gasification device through a pipeline, the outlet end of the liquid nitrogen gasification device is connected with one end of a second air release valve through a pipeline, the other end of the second air release valve is connected with one end of a nitrogen remote control valve bank through a pipeline, the other end of the nitrogen remote control valve bank is connected with one end of a third air release valve through a pipeline, the other end of the third air release valve is connected with one end of a nitrogen manual control valve through a pipeline, the other end of the nitrogen manual control valve is connected with a high-pressure mixer through a pipeline, and the high-pressure mixer is conveyed to each applicable area through a pipeline; The liquid carbon dioxide storage tank is connected with one end of a sixth air release valve through a liquid carbon dioxide liquid outlet pipe, the other end of the sixth air release valve is connected with the inlet end of the liquid carbon dioxide gasification device through a pipeline, the outlet end of the liquid carbon dioxide gasification device is connected with one end of a fifth air release valve through a pipeline, the other end of the fifth air release valve is connected with one end of a carbon dioxide remote control valve group through a pipeline, the other end of the carbon dioxide remote control valve group is connected with one end of a fourth air release valve through a pipeline, the other end of the fourth air release valve is connected with one end of a carbon dioxide manual control valve through a pipeline, and the other end of the carbon dioxide manual control valve is connected with a high-pressure mixer through a pipeline, and the high-pressure mixer is conveyed to an applicable area through a pipeline.
2. The intelligent fire extinguishing apparatus with double air groups according to claim 2, wherein the high-pressure mixer comprises a nitrogen inlet, a nozzle, a carbon dioxide inlet, a suction chamber, a mixing chamber, a diffusion chamber and an air outlet, wherein the nitrogen inlet is arranged at the front end of the nozzle, the nozzle is connected with the suction chamber, the carbon dioxide inlet is arranged at the side end of the suction chamber, the suction chamber is connected with the mixing chamber, the mixing chamber is connected with the diffusion chamber, and the air outlet is arranged at the tail end of the diffusion chamber.
3. The intelligent fire extinguishing apparatus with double air groups as set forth in claim 2, wherein the nozzle has a trapezoid cross section, a larger inlet and a smaller outlet, the carbon dioxide inlet has a rectangular cross section, and the suction chamber has a trapezoid cross section, a larger inlet and a smaller outlet.
4. The intelligent fire extinguishing apparatus with double air groups as set forth in claim 3, wherein the cross section of the mixing chamber is rectangular, the cross section of the diffusion chamber is trapezoidal, and the inlet is smaller and the outlet is larger.
5. The intelligent fire extinguisher with double air groups according to claim 4, wherein the liquid nitrogen storage tank is of double-wall type structure, the inner container is made of stainless steel, the outer container is made of Q235B or Q355R, the interlayer filling heat insulating material is pearlitic sand, and the volume is 3-200 cubic meters.
6. The intelligent fire extinguishing apparatus with double air groups according to claim 5, wherein the second air release valve, the third air release valve, the fourth air release valve and the fifth air release valve all comprise a pressure sensor and a safety valve, and the pressure sensor is connected with the safety valve.
7. The intelligent fire extinguishing apparatus with double air groups according to claim 6, wherein the first air release valve and the sixth air release valve comprise a front end ball valve, a safety valve and a rear end ball valve, and the front end ball valve is connected with the rear end ball valve through the safety valve.
8. The intelligent fire extinguisher with double air groups as set forth in claim 7, wherein the liquid nitrogen gasifying device is an air temperature type vaporizer, and is composed of 304 inner sleeve and heat exchanging finned tube made of aluminum alloy, and is matched with the evaporation amount of liquid nitrogen.
9. The intelligent fire extinguishing apparatus with double air groups according to claim 8, wherein the sensor comprises a smoke sensor, a temperature sensor, a flame detector, an infrared detector and a video fire detector.
10. The intelligent fire extinguishing device with double air groups according to claim 9, wherein the liquid carbon dioxide storage tank is of a double-wall type structure, the inner container is made of 16MnDR or stainless steel, the outer container is made of Q235B or Q355R, the middle interlayer is filled with heat insulation materials and is made of pearly-lustre sand, the volume is 3-200 cubic meters, the nitrogen remote control valve group and the carbon dioxide remote control valve group are linked with sensing signals of a sensing area and are transmitted to a control room, the applicable area comprises a pipeline and a sensor, the sensor is arranged on the pipeline, the liquid nitrogen outlet pipe is of an inverted U-shaped pipe structure, the liquid carbon dioxide outlet pipe is of an inverted U-shaped pipe structure, the other end of the nitrogen manual control valve is connected with a nitrogen inlet in a high-pressure mixer through the pipeline, and the other end of the carbon dioxide manual control valve is connected with a carbon dioxide inlet in the high-pressure mixer through the pipeline.

Description

Double-gas-group intelligent fire extinguishing device Technical Field The invention relates to a fire extinguishing device, in particular to a double-gas-group intelligent fire extinguishing device, and belongs to the technical field of fire-fighting equipment. Background In many of the existing fire extinguishing apparatuses on the market, an external fire detection system (fire alarm system) is adopted to detect a fire, and then a command center gives a starting signal to start the fire extinguishing apparatus, so that the extinguishing time of the fire is delayed to a certain extent. The Chinese patent application No. 201310127371.1 discloses an intelligent fire extinguishing device and an intelligent fire extinguishing system, wherein the intelligent fire extinguishing device comprises a shell, a power supply system for supplying electric energy, a detection system for detecting fire signals and electrically connected with the power supply system, a fire extinguishing assembly for extinguishing fire, the fire extinguishing assembly is arranged in the shell and comprises a fire extinguisher and a starter for starting the fire extinguisher, the starter is connected with the fire extinguisher, an intelligent control system is arranged in the shell, the detection system and the starter are electrically connected with the intelligent control system, and the intelligent control system is electrically connected with the power supply system. The intelligent fire extinguishing system comprises a central control console, a video device and an intelligent fire extinguishing device. The intelligent fire extinguishing device and the intelligent fire extinguishing system provided by the invention realize the purpose that the fire extinguisher is separated from an external fire alarm system to perform self-judging fire extinguishing. The intelligent fire extinguishing device and the intelligent fire extinguishing system have the defects of complex structure, high cost and unfavorable popularization and application, and particularly, the fire extinguishing assembly is a conventional assembly, and the emergency response time is still longer. The invention discloses a liquid nitrogen fire prevention and extinguishing system and a liquid nitrogen fire prevention and extinguishing method, wherein the liquid nitrogen fire prevention and extinguishing system comprises a liquid nitrogen tank car, the liquid nitrogen tank car is sequentially connected with a pump, a vertical shaft and a liquid nitrogen conveying main pipe, the liquid nitrogen conveying main pipe is respectively connected with a liquid nitrogen direct injection pipe for injecting liquid nitrogen into a goaf and a liquid nitrogen gasification device for gasifying the liquid nitrogen into nitrogen and then injecting the nitrogen into the goaf, an exhaust pipe is arranged in the goaf and connected with a return air pipeline, a first control valve is arranged on the exhaust pipe, and a sensor for monitoring pressure is arranged in the goaf. The invention has the beneficial effects that the air in the goaf can be discharged when the pressure in the goaf is larger than the preset value by arranging the exhaust pipe in the goaf, so that the pressure in the goaf is reduced, the nitrogen filling speed is improved, and inert gas and harmful gas in the goaf can be prevented from escaping into the working area from the crack of the upper corner of the goaf under the action of high pressure. The liquid nitrogen fireproof fire extinguishing system has the defects that firstly, the liquid nitrogen fireproof fire extinguishing system is special for coal mines and has no universality, and secondly, the fire extinguishing assembly is a liquid nitrogen gasification device, the raw material cost is high, and the emergency reaction time is still longer. The Chinese patent publication No. CN2915168Y discloses a liquid nitrogen fire-extinguishing combination device, and the technical scheme is that the liquid nitrogen fire-extinguishing tool can be an on-vehicle liquid nitrogen extension fire-extinguishing spray fire extinguisher, a liquid nitrogen fire-extinguishing bomb, a liquid nitrogen fire-extinguishing hanging tank or a liquid nitrogen fire-extinguishing throwing tube. The utility model has the advantages of reasonable design, simple structure, safety, reliability, environmental protection, high efficiency, convenient manufacture and the like. In addition, the liquid nitrogen fire extinguishing system has the advantages of rich raw materials, low manufacturing cost, no pollution and environmental protection after being used, capability of placing liquid nitrogen in the core part of a fire disaster, instant cooling, oxygen interruption and strong effect, and is especially suitable for the fire disasters caused by petroleum, liquefied gas and chemical substances and the occasion fires with larger loss caused by pollution, pollution and wetting, and 4, the liquid nitrogen fire e