HFC-227ea fire extinguishing agent

HFC-227ea

1. To protect the atmospheric ozone layer, our company has developed a heptafluoropropane automatic fire suppression system; heptafluoropropane (with the molecular formula CF3CHFCF3) as one of the halon alternatives, its fire suppression mechanism involves both chemical and physical extinguishing.

2. Halon 1301 automatic fire suppression systems can be categorized into piped and non-piped fire suppression systems based on the presence or absence of fire agent release piping.

3. Halon 1301管网灭火系统, also known as a cabinet fire extinguishing unit, is a pre-engineered fire suppression system. Typically, it's a compact and portable automatic fire extinguishing system that combines fire detectors, alarm control devices, and fire suppression equipment.

4. The heptafluoropropane automatic fire extinguishing system is a full flooding system.

5. HFC-227ea fire extinguishing agent is a colorless and odorless gas, free of bromine and chlorine elements, with an Ozone Depletion Potential (ODP) of 0, meeting environmental protection requirements.

6. Halon 1211 fire extinguishing agent is a new type of low-concentration extinguisher, with a low extinguishing concentration, less cylinder usage, and minimal space requirement.

7. Halon 1301 fire extinguishing agent is a non-conductive medium, free of aqueous substances, and will not damage electrical equipment, magnetic tape records, etc., nor contaminate the protected items.

8. The GWP (Global Warming Potential) of the heptafluoropropane fire extinguishing agent ≈ 0.

9. Halon 1211 fire extinguishing agent has a short atmospheric lifetime, with an ALT of 31.

10. The NOAEL value of heptafluoropropane fire extinguishing agent is moderate, suitable for protection in occupied areas.

11. Halon 1211 fire extinguishing agent is a clean gas fire extinguishing agent; it can be used as a substitute for halogenated hydrocarbon fire extinguishing agents.

12. Halon 1211 is suitable for A, B, and C class fires and can be effectively used in occupied areas.

13. Halon 1301 is suitable for protected areas containing valuable items, precious documents, as well as hardware and software.

14. HFC-227ea is suitable for areas where it is difficult to clean residual substances after reagent spraying.

15. HFC-227ea is suitable for areas with limited storage space for reagents, where only a small amount of extinguishing agent is needed to achieve fire suppression.

16. Halon 1301 is not suitable for chemicals that can rapidly oxidize in the absence of air, such as nitrocellulose.

17. Halon 1301 is not suitable for storage or production areas containing reactive metals such as potassium, sodium, magnesium, etc.

18. Halon-1211 is not suitable for storage facilities of metal hydrides.

19. The container valve of the cylinder-type Halon-1230 fire extinguishing device features a metal diaphragm sealing design, ensuring reliable sealing and making the storage of the extinguishing agent possible.

20. The 7FEP fire extinguishing cabinet has various startup methods (electrical start, electrical manual, and mechanical emergency start) to ensure reliable operation of the device.

21. The special electric start device of the heptafluoropropane cabinet fire extinguishing unit minimizes the starting current, effectively addressing issues such as high power consumption in the control section and large battery capacity, making the layout more rational.

22. The heptafluoropropane cabinet fire extinguishing unit features a unique direct-flow bottle head valve structure, resulting in minimal flow resistance of the extinguishing agent.

23. The cylinder-type 127pF fire extinguishing device features a simple structure, diverse specifications, easy installation and debugging, as well as simple and reliable operation.

24. The 7FEP fire extinguishing cabinets are available in electrical and standard types, and both can be further divided into single-bottle and double-bottle configurations.

25. Design working pressure of the 7FEP fire extinguishing cabinet: 2.5MPa, operating pressure: 4.2MPa

Fire Extinguishing Agent Filling Density: 1.15 Kg/L  Operating Environmental Temperature: 0℃~50℃

26.七氟丙烷柜式灭火装置 operating environment relative humidity: ≤85%; startup methods: electrical explosion initiation; mechanical emergency initiation. Electrical explosion initiation voltage: DC 12V~28.8V; mechanical emergency manual startup force: ≤50N.

27. Main Power Supply for the 7FEP Fire Extinguishing Cabinet: AC220V, 50Hz; Backup Power Supply: DC24V

28. The fire extinguishing method of the 7FP cylinder type fire extinguishing unit is full flooding, with the fire extinguishing agent discharge time ≤10s and the extinguishing time ≤10s.

29. Standard Type 1270 Fire Extinguishing Cabinet: Upon simultaneous alarm signals from both temperature and smoke detectors within the protected area, the fire alarm control panel (cabinet) receives the alarm signals from the detectors and, following the programmed sequence of the control panel (cabinet), enters a 30-second delay before initiating the sound and light alarm system and activating联动 equipment related to extinguishing, to promptly evacuate personnel within the protected area.

30. After the 30-second delay of the halon 1230a cabinet fire extinguishing device ends, the fire alarm control panel (cabinet) sends a fire extinguishing command to the automatic fire extinguishing control panel at the protected area entrance. The automatic fire extinguishing control panel then immediately sends an electrical signal (the automatic fire extinguishing control panel also has a 0-30s delay function, which the user can decide based on actual conditions), causing the bottle head valve on the electrically powered starting bottle to release the fire extinguishing agent for extinguishing the fire.

31. Halon 1301 Cabinet Fire Extinguishing System for Electrical Equipment: Upon simultaneous fire signals from both temperature and smoke detectors within the protected area, the electrical box on the automatic fire extinguishing system (including automatic alarm and extinguishing control functions) will initiate a 30-second delay according to the alarm programming, then activate the sound and light alarm system and the interlocked equipment related to extinguishing, prompting personnel in the protected area to evacuate promptly.

32. Electrical cabinet fire extinguishing unit with HFC-227ea: After the 30-second delay for startup, the electrical box immediately sends an open-valve electrical signal, which activates the bottle head valve on the electrically powered cylinder, thereby releasing the extinguishing agent to extinguish the fire.

33. We offer a networked heptafluoropropane fire suppression system, categorized into unit independent systems and combined distribution systems based on the protected object (scope).

34. A unit independent system of管网heptafluoropropane fire extinguishing systems refers to a fire protection system that uses a single fire extinguishing agent storage unit to protect a protected area. It is primarily used in situations where combining protection areas is not feasible or when two adjacent protection areas may simultaneously experience a fire.

35. A combination distribution system for a管网 seven氟丙烷 fire extinguishing system refers to a fire extinguishing system that uses a single extinguishing agent storage unit to protect multiple protected areas.

36. The heptafluoropropane automatic fire extinguishing system consists of three main parts: the fire alarm system, the fire extinguishing control system, and the fire extinguishing device. The fire extinguishing device is composed of two parts: the extinguishing agent storage device and the pipeline system.

37. Principle of Operation for Heptafluoropropane Automatic Fire Extinguishing System: When both temperature and smoke detectors in the protected area simultaneously send out fire signals, the automatic fire extinguishing controller delays for 30 seconds before issuing an electrical signal command. This command activates the cylinder manifold according to the pre-set combination distribution method, electrically opens the cylinder head valve and the corresponding selector valve, thereby initiating automatic fire extinguishing.

38. The pneumatic starting principle of the heptafluoropropane automatic fire extinguishing system: When both fire detectors in the protected area simultaneously emit fire signals, the automatic fire extinguishing controller delays for 30 seconds before issuing a telecommunication command to open the corresponding control area's gas cylinder. The starting gas is divided into two paths: one path opens the selection valve for the corresponding protected area through the gas line one-way valve, and the other path directly opens the fire extinguishing agent storage tank group to extinguish the fire in the protected area.

39. Halon 1301 Automatic Fire Suppression System Emergency Mechanical Manual Start: In the event of failure of the electric or pneumatic start, staff can manually open the corresponding selector valve and cylinder valve at the equipment site to initiate fire suppression. The emergency start disconnect box is a device used for manually initiating or stopping the fire suppression system at the protected site in an emergency.

40. During the installation of the heptafluoropropane automatic fire extinguishing system, the cylinder rack should be securely mounted on the wall or the floor, and there should be ample space around it for easy installation, inspection, and maintenance of the equipment.

41. Prior to installation, the collection pipe of the heptafluoropropane automatic fire extinguishing system should be cleaned internally and the inlets and outlets sealed. The collection pipe should be securely mounted on supports and frames, which in turn should be firmly anchored and treated for corrosion resistance. The outer surface of the collection pipe should be painted red.

42. The collection pipe of the heptafluoropropane automatic fire extinguishing system is equipped with a pressure relief device. The direction of the pressure relief of the device should not face the operational surface.

43. The installation of the selector valve for the heptafluoropropane automatic fire extinguishing system should ensure that the hand lever is on one side of the operating surface. When the installation height exceeds 1.7m, measures for easy operation should be taken.

44. The seven氟丙烷 automatic fire extinguishing system uses a threaded connection selection valve, which should be connected to the pipeline with a flexible joint. When the extinguishing agent supply pipeline passes through walls or floors, a sleeve should be installed. The length of the wall penetration sleeve should match the wall thickness, and the sleeve passing through the floor should be 50mm above the ground. The gap between the pipeline and the sleeve should be filled with a flexible, non-combustible material to be tightly packed. The outer surface of the extinguishing agent pipeline should be coated with red paint.

45. The assembled cylinders, valves, and other equipment for the heptafluoropropane automatic fire extinguishing system should be sturdy and reliable, maintaining their密封 integrity. The pneumatic start-up piping is a critical component; there should be no leaks between the copper tubes and their connecting parts.

46. The installation of the heptafluoropropane automatic fire extinguishing system equipment should be carried out under the guidance of the supplier's technical personnel, and after installation, the system should undergo debugging (mechanical, electrical control, etc.) and inspection.

47. During the inspection and debugging of the heptafluoropropane automatic fire extinguishing system, the power cable must be disconnected to prevent unnecessary losses. After the equipment is installed and debugged, the fire extinguishing device should be in an automatic extinguishing state.

48. When installing the heptafluoropropane automatic fire extinguishing system, pay attention to the correct orientation of the one-way and selector valves; do not reverse the inlet and outlet. Determine the number of storage cylinders for each protected area based on the amount of extinguishing agent required, and then properly connect the pneumatic pipeline and pneumatic one-way valves to ensure that the operation and the amount of extinguishing agent (number of cylinders) released (opened) in each protected area meet the design specifications.

49. The safety pin of the gas cylinder head valve and the fire extinguishing agent cylinder head valve for the heptafluoropropane automatic fire extinguishing system should ensure that the cylinder head valve cannot be opened in any manner during transportation, serving as a "safety" measure; after installation and debugging, the position of the safety pin should not obstruct the movement of the piston rod, ensuring smooth opening of the cylinder head valve and release of the fire extinguishing agent when electric or pneumatic operation is applied.

50. The charging pressure of the starting cylinder for the heptafluoropropane automatic fire extinguishing system is 10MPa. When the pressure drops to 6MPa, it must be recharged to 10MPa and a gas tightness test must be conducted to ensure the reliability of the system's pneumatics.

51. All connections in the piping of the heptafluoropropane automatic fire extinguishing system should be reliable, particularly the pneumatic start-up piping, with no leaks.

52. When installing the heptafluoropropane automatic fire extinguishing system, it is strictly forbidden to磕碰the system's components, especially the bottle head valve and the filling valve on it. The piston assembly must not磕碰, otherwise it may cause damage and even endanger personal safety.

53. The wiring for the alarm and control section (electrical part) of the heptafluoropropane automatic fire extinguishing system should be ensured to be accurate, reliable, and free of any misconceptions.

54. In the event of a fire, if the automatic fire extinguishing system's control cabinet loses its extinguishing function, first pull the safety pin on the cylinder of the ignited area and pull the handle to start the fire extinguishing system.

55. In the event of a fire, if the automatic alarm control cabinet of the heptafluoropropane fire extinguishing system loses its extinguishing function, if the bottle head valve of the storage cylinder cannot be opened, use the method of opening the bottle head valve of the starting cylinder to open the bottle head valve of the storage cylinder. If the selector valve in the fire area is not open, turn the handwheel on the selector valve to use the extinguishing agent gas within the pipeline to open the selector valve, release the extinguishing agent, and thereby activate the entire fire extinguishing system.

56. In the event of a false alarm without a fire in the heptafluoropropane automatic fire extinguishing system, press the reset button to reset the main unit, or first press the emergency shutdown button, then press reset to put the main unit into normal monitoring operation.