High-pressure fine mist

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, utilizing special nozzles to spray fine water mist under specific working pressures for fire extinguishing or control.

2. High-pressure fine water mist can provide protection through various methods, including extinguishing fires, suppressing flames, controlling temperatures, and reducing dust.

3. High-pressure fine water mist not only offers water-saving, safe, and environmentally friendly fire extinguishing capabilities but also features special functions for smoke reduction, temperature control, and toxin elimination.

4. High-pressure fine water mist can quickly isolate the fire source, effectively degrade and seal smoke and toxic gases at the fire scene, create an escape route, and facilitate the evacuation of personnel and protect the lives of firefighters.

5. The advanced series of high-pressure fine water mist fire fighting technologies, with their cutting-edge fire extinguishing, cooling, and smoke suppression mechanisms and superior performance, have 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. Various flexible applications of high-pressure fine mist technology products in different locations demonstrate a holistic development approach of "firefighting effectiveness, personal safety, and environmental protection."

8. Rapidly extinguish initial outbreaks of fires with high-pressure fine water mist, water-saving, safe and environmentally friendly.

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. High-pressure fine water mist system comes with an integrated water tank and can also be connected to an external water source. It can spray and replenish water simultaneously, offering strong continuous fire suppression capability.

11. High-pressure fine water mist with gasoline engine and high-energy battery power sources, featuring long and short-range nozzle conversion, easy operation, and excellent fire suppression effect.

12. High-pressure fine mist configurations for various security patrol vehicles, achieving integrated patrol and defense functionality; also can be detached from the vehicle for use at any time, flexible and mobile.

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 and vehicle congestion.

14. Cart-mounted Fine Mist Gun: Suitable for subway halls, 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. Pushcart-Type Fine Mist Gun: Powered by gasoline engine or high-energy battery, it is portable and versatile, capable of being used as a mobile mini fire station for quick deployment.

16. Pushcart-Type Fine Mist Gun: Equipped with a built-in water tank and capable of being connected to an external water source. It can spray and replenish water simultaneously, ensuring continuous fire suppression.

17. Pushcart-style Fine Mist Gun: Offers the capability to switch between long and short-range shooting, with minimal recoil and convenient fire suppression operation.

18. Vehicle-mounted Fine Mist Spray Gun: Achieves short-range, medium-range, long-range, and 500-meter high-rise fire suppression through mist spraying.

19. Vehicle-mounted Fine Mist Gun: Equipped for pickup trucks, vans, and also available in various models to meet customer requirements, serving as a light fire truck.

20. Vehicle-mounted Fine Mist Gun: Installed on existing fire trucks, providing multi-functional fire extinguishing methods and effects.

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 suppression system offers dual fire extinguishing effects of cooling and asphyxiation, capable of washing away smoke and toxic gases, blocking heat radiation, saving water, and being environmentally friendly and safe. It has a very wide range of applications.

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

Our company's high-pressure fine mist fire extinguishing system series provides 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, and 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 extinguishing device has no impact on humans during spraying, truly reflecting the people-oriented design philosophy and is the inevitable trend of building fire protection development.

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

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

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

30. Technical Features of High-Pressure Fine Mist Fire Extinguishing Equipment: Excellent electrical insulation properties, effective in extinguishing electrical fires.

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

32. Technical Features of High-Pressure Fine Mist Fire Extinguishing Device: Purifies smoke and toxic gases, facilitating safe evacuation of personnel and aiding fire fighters in extinguishing and rescue operations.

33. Technical Features of High-Pressure Fine Water Mist Fire Extinguishing Equipment: Wide application range, suitable for both open and enclosed protected 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, and all systems are made of stainless steel, with a long service life.

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

36. High-pressure fine water mist fire extinguishing system applications: power transformer rooms, outdoor transformers, oil and gas boiler houses, diesel generator rooms and oil storage rooms, commercial and residential buildings, subway control centers, computer and communication rooms, cable trays, cable tunnels, underground pipelines, underground tunnels, large traffic vehicles, petrochemical industry facilities, etc.

37. High-pressure Fine Water Mist Fire Extinguishing Systems: Designed according to the requirements of the protected objects, the high-pressure fine water mist automatic fire extinguishing systems are 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 locations 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 extinguishing system: The pipeline is always filled with low-pressure water in normal conditions. The system's working pressure and flow are designed and configured according to requirements, enabling a single water supply for distant locations and high-rise buildings.

41. High-pressure Fine Water Mist Fire Extinguishing Device: Can immediately deploy fire extinguishing upon detection. Operation is simple, with the remote and near-range nozzles freely switchable. The recoil force of the spray gun is minimal, allowing for quick use by non-professional fire fighters. It saves water, is 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. During operation and misting, it does not obstruct pedestrian traffic.

43. High-Pressure Fine Mist Fire Separation System: Can be designed as an integrated unit with high-pressure fine mist automatic fire extinguishing equipment. Equipped with high-pressure fine mist open sprinklers over a large area to rapidly reduce smoke and lower temperatures, effectively addressing the hazards of high-temperature smoke to human health.

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, sanitize air, degrade smoke, and lower temperatures.

45. High-pressure fine mist fire separation system: Suitable for underground parking garages, large-scale logistics warehouses, large open spaces, production assembly lines, automatic car painting and baking lines, conveyor belts, subway platforms, train shelter doors, elevator lobbies, halls, and other locations.

46. The pipeline system of the high-pressure fine water mist fire suppression system uses stainless steel pipes (304) with rust-resistant properties, as rust accumulation in the pipes can block the nozzles and render the system inoperative. The cleanliness of the pipeline system is crucial for the high-pressure fine water mist fire suppression system, hence it must be rigorously flushed, pressure tested, and purged after the pipes are installed. All pipes are焊接 using the TIG welding method.

47. High-pressure fine mist pump set (water supply unit) system composition: fine mist nozzles (open, closed), filters, zone control valve sets (boxes), water tanks, and stainless steel pipelines, 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 other cable wire to the normally open contact.

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

49. High-pressure fine mist open system working principle: In the quiescent state, the fine mist system maintains a certain pressure from the pump group outlet to the pipeline before the zone control valve box. When the pressure drops below the set start pressure of the pressure regulating pump by 1 MPa, the pressure regulating pump starts up, maintaining a stable pressure of the system pipeline at (1-1.2) MPa.

50. High-pressure fine water 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. High-pressure fine mist open system working principle: The pressure switch feedback system in the zone control valve box sends out a discharge signal, upon which the main unit receives the feedback signal and联动ly activates the spray indicator light.

52. Operating Principle of High-Pressure Fine Mist Closed System: In the quasi-operational state, the fine mist system maintains a certain pressure in the pipeline from the pump group outlet to the control valve box before the division, when the pipeline pressure drops and falls below the set start pressure of the pressure maintaining pump by 1MPa, the pressure maintaining pump starts up, ensuring the system pipeline maintains a stable pressure of (1-1.2) MPa.

53. High-pressure fine mist closed-loop system working principle: Upon detection of a fire signal by the detector, 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 valves in the zone control valve box are opened. The entire pipeline is filled with high-pressure water. Once the temperature of the glass ball in the closed-loop nozzles reaches the activation temperature, the glass ball shatters, and the high-pressure water forms a mist through the nozzle for fire extinguishing.

54. Working Principle of High-Pressure Fine Mist Closed System: The pressure switch feedback system in the zoning control valve box sends out a release signal, and upon receiving this feedback signal, the main unit联动activates the spray indicator light.

55. Automatic activation 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 address of the fire detector, 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 start of high-pressure fine mist system: After the zone valve is opened, water in the system pipes rapidly reaches working pressure (closed pre-action system waits for the closed spray head to sense the burst temperature, then the glass ball automatically bursts), and sprays through high-pressure fine mist nozzles to create a misting effect, producing fine mist to extinguish fires.

57. Manual Electrical 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: When a fire is detected, the local section control valve box can be opened, and the area valve control button pressed to open the area valve for extinguishing.

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

High-pressure fine mist is produced by professional equipment under low design working pressure, forming a mist with droplet cumulative distribution Dv0.99 < 300μm on a plane 1m from the nozzle. High-pressure 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. Mechanism of High-Pressure Fine Mist Fire Extinguishing: Rapid Cooling, Local Asphyxiation - Advanced dual-action fire extinguishing mechanism: Water emitted from a special material nozzle forms a mist with particle sizes of 10-100 micrometers, with a smaller surface area. Upon contact with fire, it quickly vaporizes, expanding in volume up to 1700-5800 times, absorbing a large amount of heat and rapidly lowering the temperature of the burning surface; simultaneously, the vaporized water forms steam, enveloping and covering the entire burning area, causing combustion to be asphyxiated due to oxygen deprivation.

62. The 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 heat at a rate of approximately 300 kW for every 1 kg of fine water mist emitted, demonstrating its high heat absorption rate and strong cooling effect.

63. Suppression Mechanism of High-Pressure Fine Water Mist Fire Extinguishing: Aspiration effect; when the fine water mist is heated and vaporizes, it expands dramatically to 1,700 to 5,800 times its original volume, creating a dense steam blanket around the burning material. This forms a barrier that prevents fresh air from entering, causing the burning material to combust due to oxygen deprivation.

64. Mechanism of High-Pressure Fine Water Mist Fire Extinguishing: The fine water mist, after evaporating, forms steam that quickly envelops the burning material, flames, and smoke. It possesses a strong barrier against the radiant heat of the flames, preventing the spread of the fire.

65. Mechanism of fire extinguishing by high-pressure fine water mist: The fine water mist not only reduces smoke and dust but also cleans away residue. This is because the ash, carbon particles, and harmful gases from combustion adhere to the tiny water droplets, resulting in their removal. Statistics show that in fire accidents, 70% of fatalities are not caused by direct fire but by smoke and toxic gases from high temperatures.

66. The extinguishing mechanism of high-pressure fine water mist: The wettability action—explains its effectiveness in extinguishing oil fires. The high-speed mist particles can penetrate deep into the surface of the burning oil, wetting the material and preventing the production of further flammable gases. Additionally, due to the small size of the mist particles, they do not disturb the liquid surface, causing splashes, thereby 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 of high-pressure fine water mist, some droplets with smaller diameters do not all travel in the direction of the jet. These droplets generate lateral and upward swirling movements within the upper space of the nozzle, allowing the fine water mist to fill the entire space of the protected area. The smaller the particle size, the more pronounced the lateral transfer phenomenon. This is also known as three-dimensional fire extinguishing.

68. Mechanism of extinguishing fires with high-pressure fine water mist: Explanation of its ability to extinguish electrical fires, and why it does not conduct electricity when extinguishing electrical fires: The droplets are small in diameter (10-100 micrometers), and after being released, they are discontinuous, capable of remaining suspended in the air for extended periods. It takes a large quantity and considerable time for the mist to coalesce and condense, making it difficult to form a continuous conductive water stream or surface film on the electrode surface. Its resistivity is slightly lower than that of air.

69. The open-type fine water mist fire extinguishing system uses water as the medium, employing special atomizing nozzles to break the water stream into fine droplets under specific pressure (usually 14Mpa) for fire suppression. It is a fixed fire extinguishing system with features such as economy and broad application range, and has become a significant technology replacing Halon fire extinguishing systems, holding great potential for future applications.

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 a high-pressure main pump, a high-pressure standby pump, a pressure-regulating pump, a control cabinet for the pump unit, an inlet solenoid valve, an inlet filter, and a regulating water tank), a water supply system, a water supply network, a group 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 Suppression System Maintenance and Care: 1) The pump unit and area valve group should be put into operation only after passing the commissioning acceptance and fire safety acceptance. 2) System maintenance personnel should conduct regular inspections, tests, and maintenance of the fine water mist fire suppression 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 the management personnel, and operators must undergo professional training.

Before 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. Maintenance and Care for Fine Water Mist Fire Extinguishing Systems: 1) During system shutdown for maintenance, manual inspections of the controlled extinguishing areas must be conducted until maintenance is complete and the system is back in use. 2) During maintenance, if any issues arise, carefully inspect and eliminate the problem, investigate the possible causes and 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 and maintenance, please carefully read this manual and follow the instructions provided. 4) For any questions, please consult the relevant technical personnel.

75. Fine Water Mist Fire Extinguishing System Precautions: 1) Please contact our technical staff and the relevant construction unit's technical staff before maintenance or inspection. 2) Operations not following this manual may result in immeasurable losses. 3) Failure to maintain and service strictly according to this manual may cause the high-pressure fine water mist fire extinguishing system to malfunction during a fire, leading to significant disasters. 4) In case of any emergency situations not described in this manual or explained during training, please contact our company immediately.