High-Pressure Fine Mist

1. High-pressure fine water mist fire suppression technology is a clean fire suppression method that uses water as the medium and sprays fine water mist for extinguishing or controlling fires at a specific working pressure through special nozzles.

2. High-pressure fine water mist can provide protection to the protected objects through various methods such as fire extinguishing, flame suppression, temperature control, and dust reduction.

3. High-pressure fine water mist not only has the fire-fighting function of saving water and ensuring safety and environmental protection, but also possesses special functions of smoke reduction, temperature reduction, and toxicity reduction.

4. High-pressure fine water mist can quickly isolate the fire source, effectively degrade and block smoke and toxic gases at the fire scene, create an escape route, and is conducive to personnel evacuation and the protection of firefighters' lives.

5. The High-Pressure Fine Mist Firefighting Technology Series, with its advanced fire suppression, cooling, and smoke reduction mechanisms, and excellent performance, has become an effective solution to numerous fire challenges.

6. High-pressure fine water mist fire protection products are suitable for extinguishing Class A, B, C, and electrical fires, and can be applied on land, at sea, and in space. They are particularly effective for protecting high-risk environments.

7. The versatile applications of high-pressure fine water mist technology across various locations showcase an integrated approach of "fire suppression, personal safety, and environmental protection."

8. Rapidly extinguish early-stage fires with high-pressure fine water mist, saving water and ensuring safety and environmental protection.

9. High-pressure fine water mist is lightweight, easy to operate, and can be carried by one person for fire extinguishing, offering convenience and speed.

10. The high-pressure fine mist system comes with an integrated water tank and can also be connected to an external water source. It allows for continuous refilling while spraying, ensuring strong sustained fire suppression capabilities.

11. High-pressure fine water mist powered by gasoline engines and high-energy batteries, with the ability to switch between long and short-range nozzles, offers convenient operation and effective fire suppression.

12. High-pressure fine mist systems are configured on various security patrol vehicles, achieving integrated patrol and defense functions. They can also be easily detached from the vehicle for use, offering flexibility and mobility.

13. High-pressure fine water mist is particularly suitable for initial fires in densely populated areas such as cities, communities, large conferences (events) in shopping malls, narrow city streets, ancient architectural complexes, elevated roads and tunnels with heavy traffic vehicle density.

14. Cart-mounted Fine Mist Gun: Suitable for subway concourses, railway stations, tunnels, industrial factories, warehouses, commercial venues, communities, cultural heritage buildings, chemical units, oil depots, power plants, large data centers, and construction sites.

15. Cart-mounted Fine Mist Spray Gun: Powered by gasoline engine or high-energy battery, it is mobile and agile, capable of serving as a quick-moving mini fire station.

16. Cart-type Fine Mist Gun: Equipped with its own water tank, it can also be connected to an external water source. It can spray and replenish water simultaneously, ensuring continuous fire suppression.

17. Pushcart-type Fine Mist Gun: Features long and short-range nozzle conversion, minimal recoil, and convenient fire extinguishing operation.

18. Vehicle-mounted Fine Mist Gun: Achieves near-range, mid-range, and high-rise fire suppression up to 500 meters.

19. Vehicle-mounted Fine Mist Gun: Equipped on pickup trucks, vans, or customizable to customer's preference for vehicle type; can be used as a light fire truck.

20. Vehicle-mounted Fine Mist Gun: Equipped on existing fire trucks, providing a multi-functional fire extinguishing method and effect.

21. The high-pressure fine water mist fire extinguishing device is a new technology in water-based fire suppression systems. It is an automatic fire-fighting water supply system that extinguishes fires using fine water mist generated by high-pressure water through special nozzles.

22. The high-pressure fine mist fire extinguishing device offers dual fire suppression effects of cooling and asphyxiation, can wash away smoke and toxic gases, block heat radiation, conserve water, and is safe and environmentally friendly. Its application range is very extensive.

23. Our company is capable of not only researching and developing high-pressure fine water mist fire suppression systems but also producing the key equipment for the system.

24. Our high-pressure fine mist fire suppression system series offers three-dimensional protection for building systems.

25. The high-pressure fine water mist fire extinguishing device features three control modes: automatic, manual, and mechanical emergency, which can be interconnected with an automatic alarm system. It enables direct supply to high-rise buildings from a distance, featuring a simple system, stable performance, and reliable operation.

26. The high-pressure fine water mist fire suppression system has no impact on humans during spraying, truly embodying the principle of people-oriented design. It represents an inevitable trend in the development of building fire protection.

27. Our project products include: High-pressure Fine Water Mist Automatic Fire Extinguishing Devices (Open and Closed Type), High-pressure Fine Water Mist Fire Hydrant System, and High-pressure Fine Water Mist Fire Separation System.

28. Technical Features of High-Pressure Fine Mist Fire Extinguishing Device: Energy-saving, safe, and environmentally friendly: Uses water as the extinguishing agent, harmless to people and objects; Low water usage, minimal water stain residue.

29. Technical Features of High-Pressure Fine Mist Fire Extinguishing System: Continuous extinguishing, high fire extinguishing efficiency, effectively prevents re-ignition of fires.

30. Technical features of high-pressure fine mist fire extinguishing device: excellent electrical insulation performance, effectively extinguishes electrical fires.

31. Technical Features of High-Pressure Fine Mist Fire Extinguishing Equipment: Shield radiant heat, achieving the effect of preventing the spread of fire and quickly controlling the fire.

32. Technical Features of High-Pressure Fine Mist Fire Extinguishing Equipment: Purifies smoke and toxic gases, facilitating safe evacuation of personnel and fire rescue efforts by firefighters.

33. Technical Features of High-Pressure Fine Mist Fire Extinguishing System: Wide application range, suitable for both open and enclosed protection areas.

34. Technical Features of High-Pressure Fine Mist Fire Extinguishing Equipment: Flexible configuration, easy installation, and convenient maintenance; high cost-performance ratio, reliable operation, all systems are made of stainless steel, with a long service life.

35. High-pressure fine mist fire extinguishing system application range: Suitable for extinguishing Class A, B, C, and electrical fires. Can be used in: libraries, archives, ancient buildings, machinery rooms, electrical equipment rooms, low-voltage and high-voltage distribution rooms.

36. Application Range of High-Pressure Fine Mist Fire Extinguishing Devices: Power transformer rooms, outdoor transformers, fuel-gas boiler rooms, diesel generator rooms and storage rooms, commercial and residential buildings, subway control centers, computer and communication rooms, cable galleries, cable tunnels, underground corridors, underground tunnels, large transportation vehicles, petrochemical industry facilities, and other locations.

37. High-pressure Fine Water Mist Fire Extinguishing System: Designed according to the requirements of the protected object, the high-pressure fine water mist automatic fire extinguishing system is available in two types: open-type and closed-type fine water mist fire extinguishing systems. Both systems operate at a rated working pressure of 16MPa, and the pump units come in two models: 70L/min and 130L/min.

38. Open-Type High-Pressure Fine Mist Fire Extinguishing System: Suitable for areas with rapid fire spread and high fire hazard levels.

Closed High-Pressure Fine Mist Fire Extinguishing System: Suitable for locations with slow fire spread and low fire hazard levels.

40. High-pressure fine water mist fire suppression system: The pipeline is always filled with low-pressure water during normal operation. The system's working pressure and flow rate are designed and configured as needed, enabling a single water supply for remote locations and high-rise buildings.

41. High-pressure Fine Mist Fire Extinguishing System: Can immediately initiate fire extinguishing upon detection. Simple operation process, with the ability to switch freely between remote and close-range nozzles. Minimal recoil from the nozzle makes it easy for non-professionals to quickly use. Water-saving, safe, and environmentally friendly.

42. High-pressure Fine Mist Fire Separation System: The high-pressure fine mist fire separation system is in an open state when not in use, with no water in the pipeline. It does not obstruct pedestrian traffic during operation.

43. High-pressure Fine Water Mist Fire Separation System: Can be designed as a unit with high-pressure fine water mist automatic fire extinguishing devices. Equipped with high-pressure fine water mist open喷heads over a large area for rapid smoke and temperature reduction, effectively mitigating the harm caused by high-temperature smoke to humans.

44. High-pressure fine mist fire separation system: Can replace fire curtains within buildings and open-style fire doors, without affecting the flow of equipment, personnel, and materials, while also serving to separate fires, disinfect gases, degrade smoke, and lower temperatures.

45. High-pressure fine water mist fire separation system: Suitable for underground parking garages, large-scale logistics warehouses, expansive open spaces, production assembly lines, automatic car spray and bake paint production lines, conveyor belts, subway platforms, train shielding doors, elevator vestibules, lobbies, and more.

46. The pipe network system of the high-pressure fine water mist fire suppression system utilizes stainless steel pipes (304) with anti-corrosion properties, as once rust occurs, the rust deposits in the pipes can block the nozzles, leading to system failure. The cleanliness of the pipe network system is crucial for the high-pressure fine water mist fire suppression system, thus, after installation, the pipes must be strictly flushed, pressure tested, and swept. All pipes are焊接 using the TIG welding method.

47. High-pressure fine mist pump unit (water supply system) composition: includes fine mist nozzles (open, closed), filters, zone control valve sets (boxes), water tanks, and stainless steel pipes, etc.

48. High-pressure fine mist pressure switch:

Loosen the top screw of the pressure switch and remove the cover.

2. Connect one of the cable wires to the common terminal.

3. Connect the additional cable wire to the normally open contact.

4. After wiring is complete, securely close the lid and tighten the screws to restore to original condition.

49. Operation Principle of High-Pressure Fine Mist Open System: In the quiescent state, the fine mist system maintains a certain pressure in the pipeline from the pump group outlet to the front of the zone control valve box. When the pressure drops below the set start pressure of the pressure maintaining pump by 1MPa, the pressure maintaining pump starts up, ensuring the pipeline of the system maintains a stable pressure of (1-1.2) MPa.

50. High-pressure fine mist open system working principle: Upon detection of a fire signal by the detector, the fire alarm control main unit transmits the signal to the electric ball valve within the pump group control cabinet and the zone control valve box. The high-pressure plunger pump automatically starts, and the electric ball valve in the zone control valve box opens. High-pressure water is then piped through to the nozzle to form a mist for fire extinguishing.

51. Working Principle of High-Pressure Fine Mist Open System: The pressure switch feedback system within the zoning control valve box sends out a release signal, upon which the main unit receives the feedback signal and simultaneously activates the spray indicator light.

52. Working Principle of High-Pressure Fine Mist Closed System: In the standby condition, the fine mist system maintains a certain pressure in the pipeline from the pump group outlet to the valve box in front of the zoning control, when the pipeline pressure drops and falls below the 1MPa set start-up pressure of the pressure maintaining pump, the pressure maintaining pump starts up to keep the system pipeline at a stable pressure of (1-1.2) MPa.

53. Working Principle of High-Pressure Fine Mist Closed System: Upon detecting a fire signal, the fire alarm control main unit transmits a signal to the pump group control cabinet. The high-pressure plunger pump starts up, and the electric ball valve inside the zone control valve box opens. The entire pipeline is filled with high-pressure water. Once the glass ball of the closed sprinkler head reaches the action temperature, it shatters, and the high-pressure water forms a mist through the nozzle for fire extinguishing.

54. Operating Principle of High-Pressure Fine Mist Closed System: The pressure switch feedback system within the zone control valve box sends out a release signal, upon which the main unit receives the feedback signal and联动ly activates the spray indicator light.

55. Automatic startup of high-pressure fine mist system: When a fire occurs within the protected area, the fire detector detects the fire and sends a signal to the fire alarm controller. The fire alarm controller confirms the area of the fire based on the fire detector's address and then sends a control signal to initiate the fire extinguishing system, starting the high-pressure plunger pump and opening the corresponding section control valves.

56. Automatic startup of high-pressure fine water mist system: After the section valve is opened, water in the system pipeline quickly reaches working pressure (closed pre-action system waits for the closed spray head to sense the bursting temperature, then the glass ball automatically bursts), and sprays by forming a misting effect through high-pressure fine water mist nozzles, producing fine water mist to extinguish fires.

57. Manual Electric Start for High-Pressure Fine Mist System: Remote Start: When a fire is detected, before the fire detector activates, the electric valve button of the corresponding zone control valve box can be initiated remotely from the fire control center, to activate the zone valve. The pump can automatically start to supply water and extinguish the fire.

58. High-pressure fine mist system manual electrical start: On-site start-up: When a fire is detected, the local zone control valve box can be opened to manually activate the zone valve control button to open the zone valve for extinguishing the fire.

59. Mechanical emergency start of high-pressure fine mist system: In the event of a failure in the fire alarm system, the handle on the area valve can be manually operated to open the area valve for extinguishing fires. Note: The emergency start of a closed fine mist system can be achieved by breaking the glass ball of the closed spray head.

High-pressure fine mist is produced by professional equipment under low design working pressure, with a mist droplet cumulative distribution of Dv0.99 < 300μm on a plane 1m from the nozzle. High-pressure water mist has functions such as cooling, humidifying, dust suppression, fire prevention, and landscaping, and can be used in industrial, breeding, planting, and entertainment fields.

61. Fire Extinguishing Mechanism of High-Pressure Fine Water Mist: Rapid Cooling and Local Asphyxiation - Advanced dual-action fire extinguishing mechanism: When water is emitted from a nozzle of a special material, it forms a mist with particle sizes between 10-100 micrometers, which has a smaller surface area. Upon contact with fire, it rapidly vaporizes, expanding in volume up to 1700-5800 times, absorbing a large amount of heat and quickly lowering the temperature of the burning surface; simultaneously, the vaporized water forms steam, enveloping and covering the entire combustion area, causing the fire to suffocate due to oxygen deprivation.

62. The fire extinguishing mechanism of high-pressure fine water mist: The heat absorption is calculated based on the latent heat of water evaporation at 100°C, which is 2257 kJ/kg. Each fine water mist nozzle absorbs approximately 300 kW of heat for every 1 kg of fine water mist sprayed, demonstrating its high heat absorption rate and strong cooling effect.

63. Suppression Mechanism of High-Pressure Fine Water Mist Fire Extinguishing: As the fine water mist encounters heat and vaporizes, it expands rapidly to 1700-5800 times its original volume, forming a dense steam blanket around the burning material. This creates a barrier that prevents fresh air from entering, causing the combustion to be interrupted due to lack of oxygen.

64. Suppression Mechanism of High-Pressure Fine Water Mist: After the fine water mist evaporates, the resulting steam quickly envelops the burning material, flame, and smoke, effectively blocking the radiant heat of the flame and preventing its spread.

65. The fire extinguishing mechanism of high-pressure fine water mist: In addition to its smoke and dust suppression effects, high-pressure fine water mist also has a cleaning action on smoke and debris. This is because the ash, carbon particles, and harmful gases from the combustion adhere to the fine water droplets, resulting in cleaning. Statistics show that in fire accidents, 70% of the fatalities are not directly caused by burns but by the inhalation of high-temperature smoke and toxic gases.

66. Mechanism of fire extinguishing by high-pressure fine water mist: Involves wetting action – capable of extinguishing oil fires. The fine water mist particles travel at high speed, penetrating the surface of burning oil materials, wetting them. This prevents the generation of further flammable gas materials. Additionally, due to the small size of the mist particles, they do not disturb the liquid surface, causing splashes, thus achieving the objectives of extinguishing the fire and preventing its spread.

67. High-pressure fine water mist fire extinguishing mechanism: Three-dimensional movement – explanation for being able to fully or partially extinguish fires. During the atomization process, some smaller diameter droplets of the high-pressure fine water mist do not travel solely in the direction of the jet. Instead, they create lateral and upward movements within the jet, entering the upper space of the nozzle. This allows the fine water mist to fill the entire space of the protected area, with smaller particle sizes resulting in more intense lateral transfer phenomena. This is also referred to as three-dimensional fire extinguishing.

68. Mechanism of extinguishing fires with high-pressure fine water mist: Explanation for its ability to extinguish electrical fires, and why high-pressure fine water mist does not conduct electricity when extinguishing electrical fires: The droplet diameter is small (10-100 micrometers), and the spray is discontinuous, allowing it to remain suspended in the air for a long time. It takes a large quantity and a long time for the water mist to coalesce and condense, making it difficult to form a continuous conductive water flow or surface area on the electrode, and its resistivity is slightly lower than that of air.

69. The open-type fine water mist fire extinguishing system uses water as the medium, and employs special atomizing nozzles to break the water stream into tiny droplets under specific pressure (usually 14Mpa) for fire extinguishing. It is a fixed fire extinguishing system characterized by economy and broad application scope, and has become an important technology replacing halon fire extinguishing systems, with a promising application prospect.

70. Composition and Working Principle of High-Pressure Fine Water Mist: The fine water mist fire extinguishing system consists of a high-pressure fine water mist storage tank, a pump unit for the fine water mist fire extinguishing system (including the main high-pressure pump, auxiliary high-pressure pump, pressure regulating pump, control cabinet of the pump unit, inlet solenoid valve, inlet filter, regulating water tank, etc.), a water supply system, a water supply network, a set of control valves for the fine water mist fire extinguishing system, fine water mist nozzles, high-pressure fine water mist pipes, and a fire detection and alarm system.

71. Fine Water Mist Fire Extinguishing System Maintenance and Care: 1) The pump group and area valve group should be put into operation only after the trial acceptance and fire inspection are passed. 2) System maintenance personnel should conduct regular inspections, tests, and maintenance of the fine water mist fire extinguishing system according to the fine water mist specifications and the requirements of this manual to ensure the system's proper working condition.

72. Fine Water Mist Fire Extinguishing System Maintenance and Care: 1) Operation and maintenance procedures should be established for the system's operation management, clearly defining the responsibilities of managers, and operators must undergo professional training.

2) Prior to shutting off the valve group or the alarm detection device, it is mandatory to notify the relevant property management units and the fire control center to ensure no false alarms will be triggered.

73. Fine Water Mist Fire Suppression System Maintenance and Care: 1) During system shutdown for inspection, a manual patrol of the controlled fire area is required until the maintenance is complete and the system is back in use. 2) During maintenance, if any issues arise, please carefully inspect and eliminate the problems, investigate the possible causes and the measures taken.

74. Fine Water Mist Fire Extinguishing System Precautions: 1) Establish corresponding protective measures for all equipment. 2) All operations and maintenance must be performed by personnel with relevant professional training. 3) Before operation or maintenance, please read this manual carefully and follow the instructions. 4) For any questions, consult the relevant technical personnel.

75. Important Notes for Fine Water Mist Fire Extinguishing System: 1) Please contact our company's technical personnel and the engineering construction unit's technical personnel before maintenance or inspection. 2) Operations not conducted according to this manual may cause incalculable losses. 3) Failure to strictly follow the maintenance and maintenance requirements in this manual may result in the high-pressure fine water mist fire extinguishing system failing to operate normally during a fire, leading to catastrophic consequences. 4) In case of emergencies not described in this manual or explained during training, please contact our company immediately.