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 pressures for fire extinguishing or control.

2. High-pressure fine mist can provide multi-functional protection for the protected objects, including extinguishing fires, suppressing flames, controlling temperature, and reducing dust.

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

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

5. The High-Pressure Fine Mist Firefighting Technology Series, with its advanced fire extinguishing, cooling, and smoke suppression mechanisms and superior performance, has 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, and can be used on land, sea, and in space. They are particularly effective in protecting high-risk environments.

7. The versatile applications of high-pressure fine mist technology products in various locations demonstrate a unified approach of "fire extinguishing effect, personal safety, and environmental protection."

8. Rapidly extinguish sudden early-stage fires with high-pressure fine water mist, water-saving, safe, and environmentally friendly.

9. High-pressure fine mist is lightweight, easy to operate, and suitable for single-person back-pack extinguishing, offering convenience and speed.

10. High-pressure fine water mist with built-in water tank, also capable of external water supply connection. It can replenish water while spraying, maintaining 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, offers convenient operation and effective fire extinguishing performance.

12. High-pressure fine mist systems are configured on various security patrol vehicles, achieving integrated patrol and defense functions, and can be used independently of the vehicle at any time, 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 and vehicles.

14. Pushcart-type Fine Mist Gun: Suitable for subway halls, railway stations, tunnels, industrial factories, warehouses, commercial venues, communities, cultural relics, chemical units, oil depots, power plants, large data centers, and construction sites.

15. Pushcart-style Fine Mist Fire Extinguisher: Powered by gasoline engine and high-energy battery, it can be moved at any time, offering flexibility and mobility. It can serve as a portable micro fire station for rapid deployment.

16. Pushcart-type Fine Mist Spray Gun: Equipped with a built-in water tank, it can also be connected to an external water source. It allows for continuous refilling while spraying, enabling sustained fire suppression.

17. Cart-mounted Fine Mist Gun: Offers the capability to switch between long and short-range spraying, with minimal recoil for the gun, and convenient fire extinguishing operations.

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 for pickup trucks, vans, and also available in customer-specified models for use as a light fire truck.

20. Vehicle-mounted Fine Mist Gun: Equipped on existing fire trucks, it achieves 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. High-pressure fine mist fire suppression systems offer dual fire suppression effects of cooling and asphyxiation, can wash away smoke and toxic gases, block thermal radiation, save water, are safe and environmentally friendly, and have a very wide range of applications.

23. Our company boasts the research and development capabilities for high-pressure fine water mist fire suppression systems, as well as the production capacity for the key equipment of 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 suppression system features three control modes: automatic, manual, and mechanical emergency. It can be integrated with an automatic alarm system for联动. It enables direct supply to high-rise buildings from a distance, boasts a simple system, stable performance, and reliable operation.

26. The high-pressure fine water mist fire suppression system has no effect on humans during spraying, truly reflecting the people-oriented design principle, and is 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 and Closed Type), High-pressure Fine Water Mist Fire Hydrant Systems, and High-pressure Fine Water Mist Fire Retardant Separation Systems.

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 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. 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 Equipment: Purifies smoke and toxic gases, conducive to personnel evacuation and firefighters' extinguishing and rescue operations.

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

34. Technical Features of High-Pressure Fine Mist Fire Extinguishing System: Flexible configuration, easy installation, and convenient maintenance; high cost-performance ratio, reliable operation, and all systems are made of stainless steel for 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, low-voltage and high-voltage power distribution rooms.

36. High-pressure fine mist fire extinguishing systems are applicable in: power transformer rooms, outdoor transformers, oil and gas boiler rooms, diesel generator rooms and storage rooms, commercial and residential buildings, subway control centers, computer and communication rooms, cable shafts, cable tunnels, underground pipelines, underground tunnels, large transportation vehicles, petrochemical industry facilities, and other locations.

37. High-pressure Fine Water Mist Fire Extinguishing Systems: Designed according to the requirements of the protected object, the high-pressure fine water mist fire extinguishing systems are available in two types: open-type and closed-type. 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 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 level.

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, allowing for a single water supply to remote locations or high-rise buildings.

41. High-pressure Fine Mist Fire Extinguishing System: Can be deployed for fire extinguishing immediately upon detection. Simple operation procedure, with the ability to switch between remote and close-range nozzles freely. Minimal recoil for the spray gun, making it easy for non-professionals to use quickly. 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 during normal operation, with no water in the pipeline. It does not obstruct 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. It is 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 and openable fire doors within buildings, without affecting the flow of equipment, personnel, and materials, while also serving as a fire separation, disinfection gas washing, smoke degradation, and temperature reduction function.

45. High-pressure fine mist fire separation system: Suitable for underground parking garages, large logistics warehouses, spacious open areas, production lines, automotive automatic painting and baking lines, conveyor belts, subway stations, train platform gates, elevator lobbies, and halls, etc.

46. The pipeline system of the high-pressure fine water mist fire suppression system uses stainless steel pipes (304) with rust resistance, as once rust occurs, the rust accumulation in the pipeline will block the nozzles, leading to system failure. The cleanliness of the pipeline system is crucial for the high-pressure fine water mist fire suppression system, thus the pipes must be strictly flushed, pressure tested, and swept after installation. All pipes are焊接 using tungsten inert gas (TIG) welding.

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

48. High-pressure fine mist pressure switch:

1. 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. High-pressure fine water mist open system working principle: In the quasi-operational state, the fine water 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 1MPa set start pressure of the pressure maintenance pump, the pump starts up to maintain a stable pipeline pressure of (1-1.2) MPa.

50. High-Pressure Fine Mist Open System Operation Principle: Upon detection of a fire signal by the detector, the fire alarm control main unit transmits a signal to the electric ball valve within the pump 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, allowing high-pressure water to flow through pipes and nozzles to form a mist for fire suppression.

51. High-pressure fine mist open system working principle: The pressure switch feedback system in the zone control valve box sends out a spray 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 control valve box of the zone. When the pipeline pressure drops and falls below the set start-up pressure of the pressure maintenance pump by 1 MPa, the pressure maintenance pump activates, keeping 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 valves within the zone control valve box are opened. The entire pipeline network is filled with high-pressure water. When the glass ball in the closed sprinkler head reaches the activation temperature, it breaks, 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 out a release signal, and upon receiving this feedback signal, the main unit联动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 address of the fire detector, then sends a control signal to activate the fire extinguishing system, starting the high-pressure plunger pump and opening the corresponding section 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 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. High-pressure fine mist system manual electrical start: Remote start: When a fire is detected, before the fire detector activates, the electric valve button of the corresponding zone control valve box at the remote fire control center can be pressed to initiate the valve, thereby starting the pump for automatic water supply and fire extinguishing.

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 to activate the area valve by pressing the area valve control button for fire extinguishing.

Mechanical emergency start of high-pressure fine mist system: In the event of failure of the fire alarm system, the handle on the local valve can be manually operated to open the local valve for extinguishing fires. Note: Emergency start of the 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, forming a mist with a droplet cumulative 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, animal husbandry, agriculture, and entertainment fields.

61. Mechanism of Fire Extinguishing by High-Pressure Fine Mist: Rapid Cooling and Local Asphyxiation—Advanced dual-action fire extinguishing mechanism: Water emitted from a nozzle of special material forms a mist with particle sizes between 10-100 micrometers, having a smaller surface area. Upon contact with fire, it rapidly vaporizes, expanding its volume by 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 lack of oxygen.

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℃ as 2257 kJ/kg. Each fine water mist nozzle can absorb heat at a rate of approximately 300 kW for every 1 kg of fine water mist sprayed, demonstrating its high heat absorption rate and strong cooling effect.

63. Mechanism of High-Pressure Fine Water Mist Fire Extinguishing: Asphyxiating effect - when the fine water mist is heated and vaporized, it expands dramatically to 1,700 to 5,800 times its original volume, forming a dense cloud of steam around the burning material. This creates a barrier that blocks the entry of fresh air. It causes the combustion to cease due to lack of oxygen.

64. Suppression Mechanism of High-Pressure Fine Water Mist Fire Extinguishing: 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, thereby preventing the spread of the fire.

65. Suppression Mechanism of High-Pressure Fine Water Mist: The high-pressure fine water mist not only has a smoke and dust removal effect but also washes away waste. This is because the ash, carbon particles, and harmful gases from the combustion adhere to the fine water droplets, thus being washed away. Statistics show that in fire accidents, 70% of the fatalities are not directly caused by the fire but by the inhalation of hot smoke and toxic gases.

66. The extinguishing mechanism of high-pressure fine water mist: Involves wetting action—capable of extinguishing oil fires. The high-pressure fine water mist has a high particle velocity, allowing it to penetrate the surface of burning oil materials, wetting them. This prevents the further production of combustible gas materials. 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 fires and preventing their spread.

67. Mechanism of fire extinguishing by high-pressure fine water mist: Three-dimensional movement—explanation for filling or extinguishing in full or partially. During the atomization of high-pressure fine water mist, some smaller diameter 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 referred to as three-dimensional fire extinguishing.

68. Explanation of the fire extinguishing mechanism for high-pressure fine water mist: Explanation of why it can extinguish electrical fires and why it does not conduct electricity when extinguishing electrical fires: The droplet diameter is small (10-100 micrometers), and after being sprayed, it is discontinuous, capable of remaining suspended in the air for a long time. It requires a large quantity and extended time to coalesce and condense into water mist, 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.

Open-type fine water mist fire extinguishing system, utilizing water as the medium and employing special atomizing nozzles to break water streams into fine droplets under specific pressure (usually 14MPa) for fire extinguishing. It is a fixed fire extinguishing system with features such as economy and wide application range, and has become a key technology replacing halon fire extinguishing systems, with broad prospects for application.

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 zone 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. Maintenance and Care of Fine Water Mist Fire Extinguishing Systems: 1) The pump set and area valve set should be put into operation only after passing the commissioning acceptance and fire safety acceptance. 2) System maintenance personnel should regularly inspect, test, and maintain the fine water mist fire extinguishing system according to the fine water mist specifications and the requirements of this manual to ensure the system operates in perfect 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 managers, and operators must undergo professional training.

Before shutting off valve groups or activating the 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 for Fine Water Mist Fire Extinguishing Systems: 1) During system shutdown for inspection, a manual patrol of the controlled extinguishing area must be conducted until the inspection is complete and the system is back in use. 2) During maintenance, if any issues arise, please thoroughly inspect and rectify the problems, investigate the possible causes, and implement measures.

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 procedures outlined in it. 4) For any questions, consult the relevant technical personnel.

75. Precautions for Fine Water Mist Fire Extinguishing System: 1) Contact our company's 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 strictly follow the maintenance and maintenance requirements in this manual may cause the high-pressure fine water mist fire extinguishing system to malfunction during a fire, leading to catastrophic consequences. 4) In case of emergencies not covered by this manual or training explanations, please contact our company immediately.