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, employing 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 has the fire-fighting function of saving water and being safe and environmentally friendly, 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 seal 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 advanced series of high-pressure fine water mist fire suppression technologies, with their innovative fire extinguishing, cooling, and smoke suppression mechanisms, as well as superior performance, have become an effective solution to numerous fire challenges.

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

7. The versatile applications of high-pressure fine water mist technology in various locations reflect a holistic approach of "fire extinguishing effectiveness, personal safety, and environmental protection."

8. Rapidly extinguish sudden early-stage fires with high-pressure fine water mist, saving water, 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 with its own water tank, also capable of connecting to an external water source, allowing for simultaneous misting and refilling, featuring strong continuous fire extinguishing capability.

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, offering convenient operation and effective fire extinguishing performance.

12. High-pressure fine mist systems configured on various security patrol vehicles, achieving integrated patrol and defense functionality, and can also be used independently of the vehicle, 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 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 concourses, railway stations, tunnels, industrial plants, warehouses, commercial venues, communities, cultural heritage sites, 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 mobile and versatile, suitable for use as a portable mini fire station for quick deployment.

16. Cart-mounted Fine Mist Fire Extinguisher: Equipped with its own 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-type Fine Mist Gun: Features long and short-range nozzle conversion, low recoil force on the nozzle, and convenient fire extinguishing operation.

18. Vehicle-mounted Fine Mist Gun: Achieves short-range, medium-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 the customer's choice of vehicle type, serving as a light fire truck for use.

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

21. The high-pressure fine water mist fire extinguishing system is a new technology of water-based fire extinguishing 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. High-pressure fine water mist fire extinguishing devices offer dual fire suppression effects of cooling and asphyxiation, capable of washing away smoke and toxic gases, blocking heat radiation, saving water, being safe and environmentally friendly, and have a very wide application range.

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

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

25. The high-pressure fine water mist fire extinguishing device features three control methods: automatic, manual, and mechanical emergency, and can be integrated with an automatic alarm system. 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 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 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 System: 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 Equipment: Continuous 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. High-pressure fine water mist fire extinguishing device technical features: shields radiant heat, achieving the effect of preventing fire spread and rapidly controlling the fire.

32. Technical Features of High-Pressure Fine Mist Fire Extinguishing Equipment: Purifies smoke and toxic gases, conducive to personnel evacuation and fire fighters' extinguishing and rescue operations.

33. Technical Features of High-Pressure Fine Mist Fire Extinguishing Equipment: 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, the system is 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, and electrical fires. Can be used in: libraries, archives, ancient buildings, machinery rooms, electrical equipment rooms, high and low voltage switchgear rooms;

36. High-pressure fine mist fire suppression 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 trays, cable tunnels, underground galleries, underground tunnels, large traffic vehicles, petrochemical industry facilities, and more.

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 have 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 Water Mist Fire Extinguishing System: Suitable for locations where fire spreads rapidly and has a high fire hazard level.

Closed High-Pressure Fine Water Mist Fire Extinguishing System: Suitable for locations where fire spread is slow and the fire hazard level is low.

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 rate are designed and configured as needed, enabling a single water supply for distant locations and high-rise buildings.

41. High-Pressure Fine Mist Fire Extinguishing Device: Can be immediately deployed upon detecting a fire. The operation procedure is simple, with remote and near-range nozzles that can be freely switched. The recoil of the spray gun is minimal, allowing for quick and easy use by non-professional fire personnel. Saves water and is safe and environmentally friendly.

42. High-pressure Fine Water Mist Fire Separation System: The high-pressure fine water mist fire separation system is in an open state during normal operation, with no water in the pipeline. It does not interfere with personnel movement during the operation of the misting spray.

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 spray heads over a large area to quickly 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 inside buildings and open fire doors, without affecting the flow of equipment, personnel, and materials, while also serving as a fire separation, decontamination, smoke degradation, and temperature reduction function.

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

46. The pipeline system of the high-pressure fine water mist fire extinguishing system uses stainless steel pipes (304) with rust-resistant properties, as rust buildup 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 extinguishing system, hence, after installation, the pipes must be strictly flushed, pressure tested, and purged. 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: consists of 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 additional cable to the normally open contact.

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

49. Working Principle of High-Pressure Fine Mist Open System: In the quasi-operational 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 1 MPa set start pressure of the pressure maintaining pump, the pump starts up to maintain a stable pressure of the system pipeline (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 in the pump group control cabinet and the electric ball valve in the zone control valve box. The high-pressure plunger pump automatically starts, and the electric ball valve in the zone control valve box opens, with high-pressure water forming a mist through the pipeline and nozzle 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, and upon receiving this feedback signal, the main unit联动activates the spray indicator light.

52. Working Principle of High-Pressure Fine Mist Closed System: In the準 operational 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 pipeline pressure drops and is lower than the set startup pressure of the pressure regulating pump by 1 MPa, the pressure regulating pump activates to keep the system pipeline at 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, and the electric ball valves in the zone control valve box open, filling the entire pipeline with high-pressure water. When the glass ball in the closed-loop sprinkler head reaches the activation temperature, it shatters, and the high-pressure water forms a mist through the nozzle to extinguish the fire.

54. High-pressure fine mist closed-loop system working principle: The pressure switch feedback system in the sectional 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.

55. Automatic Start 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 fire-affected area based on the address of the fire detector, then sends a control signal to start the fire extinguishing system, initiating the high-pressure plunger pump and opening the corresponding section control valves.

56. Automatic startup of high-pressure fine mist system: After the section 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 bursting 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 activated remotely from the fire control center, to initiate the zone valve. The pump can then automatically start to supply water for fire extinguishing.

58. High-pressure fine mist system manual electrical start: Local start-up: When a fire is detected, the partition control valve box can be opened locally to activate the area valve by pressing the area valve control button 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: 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 a type of mist generated by professional equipment under low design working pressure, with a droplet accumulation distribution of 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 industries, farming, planting, and entertainment fields.

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

62. Fire extinguishing mechanism of high-pressure fine water mist: With a heat absorption capacity of 2257 kJ/kg based on the latent heat of water vaporization at 100°C, each kilogram of fine water mist emitted by the nozzle absorbs approximately 300 kW of heat. This demonstrates its high heat absorption rate and strong cooling effect.

63. Suppression Mechanism of High-Pressure Fine Water Mist Fire Extinguishing: Aspiration action. After the fine water mist is heated and vaporized, its volume expands abruptly to 1,700~5,800 times, with steam tightly enveloping the surrounding combustibles, forming a barrier to block fresh air from entering. This causes the combustion to cease due to insufficient oxygen.

64. High-pressure fine water mist fire extinguishing mechanism: After the fine water mist evaporates, the resulting steam quickly envelops the burning material, flames, and smoke, effectively blocking the radiant heat of the flames, preventing the spread of the fire.

65. Suppression Mechanism of High-Pressure Fine Water Mist: The high-pressure fine water mist not only has the function of smoke and dust removal but also acts as a cleaning agent for smoke and waste. This is because the ash, carbon particles, and harmful gases from the combustion adhere to the fine water droplets, thus being neutralized. Statistics show that in fire accidents, 70% of the deaths are not caused by direct burns but by the inhalation of high-temperature smoke and toxic gases.

66. High-pressure fine water mist fire extinguishing mechanism: Infiltration action — explanation for extinguishing oil fires. The high-pressure fine water mist particles move rapidly, allowing them to penetrate deep into the surface of the burning material, thereby wetting it. This prevents the further generation of combustible gas particles. Additionally, due to the small size of the water mist particles, they do not disturb the liquid surface, causing splashes, thereby achieving the goal of extinguishing fires and preventing the spread of fire.

67. The fire extinguishing mechanism of high-pressure fine water mist: Three-dimensional movement — explanation for full or partial extinguishing. During the atomization of high-pressure fine water mist, some smaller diameter droplets do not all move forward in the喷射 direction. The droplets generate lateral and upward movement in the jet direction, entering 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 referred to as three-dimensional extinguishing.

68. Mechanism of extinguishing by high-pressure fine water mist: Explanation of its ability to extinguish electrical fires and why it doesn't conduct electricity when extinguishing electrical fires: The droplets are small in diameter (10-100 micrometers), and after being sprayed, they are discontinuous, able to float in the air for a long time. It takes a large quantity and a long 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, 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, a regulating water tank, etc.), 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 piping, and a fire detection and alarm system.

71. Fine Water Mist Fire Extinguishing System Maintenance and Care: 1) The pump unit and area valve group should be put into operation only after passing the adjustment acceptance and fire inspection. 2) The system maintenance personnel should regularly inspect, test, and maintain the fine water mist fire extinguishing system according to the fine water mist standards 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) The operation and management of the system should establish operational and maintenance procedures, clearly define the responsibilities of managers, and operators must undergo professional training.

2) Prior to shutting off the valve assembly 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 Extinguishing System Maintenance and Care: 1) During system shutdown for maintenance, manual inspections of the controlled fire area must be conducted until maintenance is complete and the system is back in use. 2) During maintenance, if any faults occur, please thoroughly check and eliminate them, and investigate the possible causes and measures taken.

74. Fine Water Mist Fire Extinguishing System Precautions: 1) Establish corresponding preventive measures for all equipment. 2) All operations and maintenance must be performed by personnel who have received relevant professional training. 3) Please read this manual carefully before operating or maintaining and follow the procedures outlined in it. 4) In case of any issues, consult with the relevant technical personnel.

75.注意事项 for Fine Mist Fire Extinguishing Equipment: 1) Please contact our relevant technical personnel and those of the construction unit before maintenance or repair. 2) Operations not following this manual may cause unquantifiable losses. 3) Failing to maintain and service strictly according to this manual may lead to the high-pressure fine mist fire extinguishing system failing to operate properly during a fire, potentially causing catastrophic damage. 4) In case of any emergency situations not described in this manual or explained during training, please contact our company immediately.