High-pressure fine mist

High-pressure fine mist

1. High-pressure fine water mist fire extinguishing technology is a clean fire extinguishing method that uses water as the medium, utilizing special nozzles to spray fine water mist under specific working pressure for fire extinguishing or control.

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

3. High-pressure fine water mist not only offers water-saving, safe, and environmentally friendly fire extinguishing capabilities, but also possesses unique functions for smoke reduction, temperature decrease, and toxicity reduction.

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 is conducive to the evacuation of personnel and the protection of firefighters' lives.

5. The advanced series of high-pressure fine mist fire suppression technologies, with their innovative 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 in protecting high-risk environments.

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

8. Rapidly extinguish initial 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 with built-in water tank, also capable of external water source connection. It can replenish water while spraying, maintaining strong continuous fire extinguishing capability.

11. High-pressure fine water mist with gasoline engine and high-energy battery power source, with both long and short-range nozzle conversion, easy to operate, and effective fire extinguishing performance.

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 fire control in densely populated areas such as cities, communities, large-scale conferences (events) in shopping malls, narrow city streets, ancient architectural complexes, elevated roads and tunnels with heavy traffic vehicle density.

14. Pushcart-type Fine Mist Gun: Suitable for locations such as subway concourses, railway stations, tunnels, industrial factories, warehouses, commercial sites, communities, cultural heritage buildings, chemical units, oil depots, power plants, large data centers, and construction projects.

15. Pushcart-type Fine Mist Spray Gun: Powered by gasoline engine or high-energy battery, it is portable and agile, serving as a mobile mini fire station for rapid deployment.

16. Pushcart-type Fine Mist Fire Extinguisher: Equipped with a built-in water tank and capable of connecting to an external water source, it can spray and replenish water simultaneously, ensuring continuous fire suppression.

17. Cart-mounted Fine Mist Spray Gun: Capable of switching between long and short-range spray guns, with minimal recoil and convenient fire extinguishing operations.

18. Vehicle-Mounted Fine Mist Gun: Achieves short-range, mid-range, long-range, and 500-meter high-rise fire suppression by misting.

19. Vehicle-mounted Fine Mist Gun: Equipped on pickup trucks, vans, or customizable to customer's choice of vehicle type, suitable for use 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 water mist fire suppression system offers dual extinguishing effects of cooling and asphyxiation, capable of washing away smoke and toxic gases, blocking heat radiation, conserving water, being safe and environmentally friendly, and 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 produces the critical equipment for these systems.

24. Our high-pressure fine mist fire suppression system series offers a 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. It can be integrated with an automatic alarm system for联动. It allows for direct supply to high-rise buildings from a distance, boasts a simple system design, 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 products for this project include: 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 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 left behind.

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

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

31. Technical Features of High-Pressure Fine Mist Fire Extinguishing System: 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 fire fighting rescue operations.

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 long service life.

35. High-pressure fine water mist fire extinguishing system application scope: 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 mist fire extinguishing system applications: Power transformer rooms, outdoor transformers, fuel-gas boiler rooms, diesel generator rooms and oil 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 more.

37. High-pressure Fine Water Mist Fire Extinguishing System: According to the requirements of the protected object, the high-pressure fine water mist automatic fire extinguishing system is designed into two types: open-type and closed-type fine water mist fire extinguishing systems. Both systems have a rated working pressure of 16MPa, and the pump units used 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.

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

40. High-pressure fine mist fire extinguishing system: The pipeline is always filled with low-pressure water in normal conditions. The system's working pressure and flow rate are designed and configured as needed, enabling one-time water supply for distant locations and high-rise buildings.

41. High-pressure Fine Mist Fire Extinguishing Device: Can be deployed for fire extinguishing immediately upon detection. Simple operation, with the ability to switch between long-range and short-range nozzles. Minimal recoil, allowing for quick use by non-professional firefighters. Water-saving and environmentally friendly.

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

43. High-pressure Fine Water Mist Fire Separation System: Can be designed as an integrated unit with high-pressure fine water mist automatic fire extinguishing devices. Equipped with high-pressure fine water mist open-type nozzles over a large area for rapid smoke and temperature reduction, 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 as a fire separation, disinfection, smoke degradation, and temperature reduction function.

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

46. The pipe network system of the high-pressure fine water mist fire extinguishing system uses stainless steel pipes (304) with rust resistance, as once rust occurs, the rust deposits in the pipeline will block the nozzles, leading to system failure. The cleanliness of the pipe network system is crucial for the high-pressure fine water mist fire extinguishing system; therefore, after the pipes are installed, they must be strictly flushed, pressure tested, and swept. All pipes are焊接 using the tungsten inert gas (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 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 lines to the common terminal.

3. Connect the additional 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. Working 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 zone control valve box. When the pressure drops below the 1 MPa set start-up pressure of the pressure maintenance pump, the pump is activated to keep the system pipeline at 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 divisional control valve box. The high-pressure plunger pump automatically starts, and the electric ball valve in the divisional control valve box opens. High-pressure water forms a mist through pipes and nozzles for fire extinguishing.

51. High-pressure fine mist open system working principle: The pressure switch feedback system within the zone control valve box sends out an emission signal, upon which the main unit receives the feedback signal and联动ly activates the spray indicator light.

52. Working Principle of High-Pressure Fine Mist Closed System: In the quasi-operational state, the fine mist system maintains a certain pressure within the pipeline from the pump group outlet to the front of the zone control valve box. When the pipeline pressure drops and falls below the set start pressure of the pressure regulating pump by 1 MPa, the pressure regulating pump activates to maintain a stable pressure in the system pipeline 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 the signal to the pump group control cabinet. The high-pressure plunger pump starts, and the electric ball valves in the zone control valve box are opened. The entire pipeline is filled with high-pressure water. When the glass ball of the closed head reaches the activation temperature, it shatters, and the high-pressure water forms a mist through the nozzle for fire extinguishing.

54. High-pressure fine mist closed-loop system working principle: The pressure switch feedback system in the zone control valve box sends a discharge 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 fire detector's address, then sends a control signal to activate the fire extinguishing system, starting the high-pressure plunger pump and opening the corresponding zone control valves.

56. Automatic startup of high-pressure fine mist system: After the zone valve is opened, water in the system pipes quickly reaches working pressure (closed pre-action system waits for the closed nozzle to sense the bursting temperature and the glass ball to burst automatically), and then sprays fine mist through high-pressure fine mist nozzles 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-up: When a fire is detected, the area control valve box can be opened locally, and the area valve can be opened by pressing the area valve control button to extinguish the fire.

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.

60. High-pressure fine mist is produced by professional equipment under low design working pressure, and forms a mist with droplet accumulation distribution 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 industries, 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: Water is emitted from a nozzle made of a special material, forming a mist with particle sizes between 10-100 micrometers, which has a smaller surface area. Upon contact with fire, it quickly vaporizes, expanding its volume by 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 combustion area, causing the fire to suffocate due to oxygen deprivation.

62. The fire extinguishing mechanism of high-pressure fine water mist: With a heat absorption rate calculated based on the latent heat of 100℃ water evaporation at 2257 kJ/kg, each fine water mist nozzle absorbs heat at a power of approximately 300 kW for every 1 kg of fine water mist it sprays. This illustrates its high heat absorption rate and strong cooling effect.

63. Suppression Mechanism of High-Pressure Fine Water Mist Fire Extinguishing: Aspiration effect – upon heating, the fine water mist vaporizes and rapidly expands up to 1,700 to 5,800 times its original volume, creating a dense steam barrier around the burning material. This barrier blocks the entry of fresh air, causing the combustion to be interrupted due to oxygen deprivation.

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, preventing its spread.

65. The extinguishing mechanism of high-pressure fine water mist: In addition to its smoke and dust suppression effects, the high-pressure fine water mist also washes away smoke and debris. This is because the ash, carbon particles, and harmful gases from combustion adhere to the fine water droplets, thereby being washed away. Statistics show that in fire accidents, 70% of the deaths are not caused by direct fire burns, but by the inhalation of high-temperature smoke and toxic gases.

66. Mechanism of extinguishing by high-pressure fine water mist: The wettability effect—capable of extinguishing oil fires. The high-speed droplets of the fine water mist can penetrate 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 water mist particles, they do not disturb the liquid surface, causing splashes, thereby achieving the goals of extinguishing the fire and preventing its spread.

67. Mechanism of fire extinguishing by high-pressure fine water mist: 3D movement – explanation for filling or extinguishing in full or partially. During atomization, some of the smaller diameter mist droplets do not all move forward in the direction of the jet. They generate lateral and upward swirling movements in the direction of the jet, entering the upper space of the nozzle. This allows the fine water mist to fill the entire space of the protected area. The smaller the particle size, the more intense the lateral transfer phenomenon. This is also known as 3D fire extinguishing.

68. Explanation of the fire extinguishing mechanism for high-pressure fine water mist: Explanation of why it can extinguish electrical fires without conducting electricity: The droplets are small (10-100 micrometers) and discontinuous after being sprayed, allowing them to remain 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 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 fine droplets under specific pressure (usually 14Mpa) for fire extinguishing. It is a fixed fire protection system with features such as economy and wide application range, and has become a significant technology to replace Halon fire extinguishing systems, offering a promising future in various 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 fine water mist fire extinguishing unit pump assembly (including a high-pressure main pump, a high-pressure backup pump, a pressure maintenance pump, a pump assembly control cabinet, an inlet solenoid valve, an inlet filter, and a regulating tank), a water topping system, a water supply network, a fine water mist fire extinguishing unit zone control valve assembly, fine water mist nozzles, high-pressure fine water mist piping, and a fire detection and alarm system.

71. Maintenance and Care for Fine Mist Fire Extinguishing Equipment: 1) The pump group and area valve group may be put into operation only after passing the commissioning acceptance and fire safety inspection. 2) The system maintenance personnel should regularly inspect, test, and maintain the fine mist fire extinguishing system according to the fine mist specifications and the requirements of this manual to ensure the system operates in good 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 valve groups or alarm detection devices, 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 of Fine Water Mist Fire Extinguishing Systems: 1) During system shutdown for maintenance, an manual inspection of the controlled fire suppression area is required until maintenance is complete and the system is back in use. 2) During maintenance and care, if any faults occur, please carefully check and eliminate them, 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) Please read this manual carefully before operating or maintaining and follow the instructions provided. 4) For any questions, consult the relevant technical personnel.

75.注意事项 for Fine Water Mist Fire Extinguishing System: 1) Please contact our technical staff and the engineering construction unit's technical staff before maintenance or inspection. 2) Operations not conducted according to this manual may result in incalculable losses. 3) Failure to maintain the system strictly in accordance with this manual may cause the high-pressure fine water mist fire extinguishing system to fail during a fire, leading to catastrophic damage. 4) In case of any emergency situations not described in this manual or explained during training, please contact our company immediately.