A high-pressure CO2 fire extinguishing system is a commonly used, fixed gas fire extinguishing device with good extinguishing effectiveness. Its fire extinguishing mechanism is to relatively reduce the oxygen content in the air of the burning area, lower the temperature of the combustible materials, and cause the fire to suffocate, achieving the purpose of extinguishing the fire—physical action extinguishing.

2. High-pressure carbon dioxide extinguishing agent is a colorless, odorless, dry inert gas that is non-corrosive and non-conductive. It completely vaporizes upon extinguishing without leaving any residue, does not damage water temperature, does not harm the atmospheric ozone layer, is harmless to most materials, and does not contaminate food.

3. High-pressure CO2 fire extinguishing agent is abundant in supply, affordably priced, versatile in use, rapid in extinguishing speed, and effective, suffocating the fire within seconds to minimize losses to a minimum extent.

4. High-pressure carbon dioxide extinguishing agent, also known as a 3D extinguishing agent, refers to its three-dimensional movement, which means it can extinguish both vertically and horizontally spreading flames. The fast-moving, rapidly expanding CO2 gas can pass through obstacles and small openings, reaching hard-to-access and concealed fire hazard areas, quickly extinguishing the flames.

5. High-pressure CO2 fire suppression systems are one of the common types of gas fire suppression systems, with mature application technology and wide usage. The fire extinguishing principle of high-pressure CO2 systems is asphyxiation, with a slight cooling and temperature reduction effect.

6. Compared to other gas fire suppression systems, the high-pressure CO2 fire suppression system not only supports total flooding fire extinguishing applications but also allows for localized fire suppression designs, offering flexibility. It is ideal for protecting high-risk areas prone to fires, such as rolling mills, printing presses, drying equipment, and automotive paint spray lines.

7. The high-pressure carbon dioxide fire suppression system is not suitable for extinguishing fires involving the following substances: chemical items that can provide oxygen (including oxidizers) such as nitrocellulose, hydrogen peroxide, etc.; reactive metals such as potassium, sodium, magnesium, titanium, zirconium, etc.; metal hydrides (including metal amine compounds) such as potassium hydride, sodium hydride, etc.

8. At a concentration of 3%-4% in the air, the toxicity of high-pressure carbon dioxide fire extinguishing agent can increase breathing rate and may cause headaches. At a concentration of 9%, individuals may lose consciousness and become disoriented within 10 minutes. At a concentration of 20%, asphyxiation can occur 20-30 minutes later.

9. High-pressure CO2 fire suppression systems are divided into full flooding fire suppression systems and local application fire suppression systems according to the protected object (scope).

10. A high-pressure carbon dioxide total flooding fire suppression system is a complete storage unit that injects a specified concentration of carbon dioxide into the protected area within a designated time, ensuring it is evenly distributed to fill the entire protected zone.

11. A high-pressure carbon dioxide local application fire extinguishing system is a fire extinguishing system that, within a specified time, directly sprays a certain amount of extinguishing agent onto the surface of the burning combustible material. It is mainly used for protecting local hazard areas within large enclosed spaces.

12. High-pressure carbon dioxide is divided into unit-independent systems and combined distribution systems according to the protected area.

13. A High-Pressure Carbon Dioxide Unit Independent System refers to a fire suppression system that protects a protected area using a set of fire extinguishing agent storage devices. It is primarily used in situations where it is not convenient to combine protected areas or where two adjacent protected areas may simultaneously experience a fire.

14. A High-Pressure Carbon Dioxide Combination Distribution System refers to a fire suppression system that uses a set of fire extinguishing agent storage devices to protect multiple protected areas.

15. The high-pressure CO2 automatic fire extinguishing system consists of three parts: the fire alarm system, the fire extinguishing control system, and the fire extinguishing system. The fire extinguishing system is further composed of the CO2 storage unit and the pipeline system.

16. High-pressure carbon dioxide automatic fire extinguishing systems are suitable for fires of the following categories: liquid or fusible solid fires (such as paraffin, asphalt); surface fires of solids and deep-seated fires of some solids (such as cotton, paper); fires involving electrical equipment like transformers, switches, generators, and motors; gas fires (excluding those where the gas source cannot be cut off prior to extinguishing), such as methane, ethane, propane, and city gas.

17. High-pressure CO2 automatic fire extinguishing systems are suitable for: computer rooms, transformer rooms, switch rooms, power generation units, metal rolling units, quenching oil tanks, communication rooms, electrical and instrument control centers; aircraft and ship engine compartments, car parks, engine laboratories; oil tanks, oil storage facilities, oil pump rooms, hazardous material warehouses, electrostatic painting booths, reactors; library storage rooms, data storage areas, bank vaults, cable tunnels, food warehouses, tobacco warehouses, etc.

18. The storage room for high-pressure CO2 fire extinguishing system cylinders should maintain a temperature of 0 to 49°C. Cylinders should not be directly exposed to sunlight and should be kept away from heat sources.

19. The storage room for high-pressure CO2 automatic fire extinguishing system should be located in a room that is easily accessible by personnel, convenient for entry and exit, and not prone to fire.

20. The storage room for high-pressure carbon dioxide automatic fire extinguishing system should be kept away from environments prone to vibration, impact, and corrosion.

21. The ground, walls, and ceiling of the cylinder room for the high-pressure CO2 automatic fire extinguishing system have been finished. No further construction should be done after the system is installed.

22. The cylinder rack or cabinet for the high-pressure CO2 automatic fire extinguishing system should be securely mounted on the wall or floor, with sufficient space around it for easy installation, inspection, and maintenance of the equipment.

23. Before installation, the collection pipe of the high-pressure CO2 automatic fire extinguishing system should be cleaned internally and the inlets and outlets sealed. The collection pipe should be securely fastened to supports and frames, which in turn should be firmly attached and treated for corrosion resistance. Additionally, the surface of the collection pipe should be painted red.

24. The collection pipe of an automatic fire extinguishing system with a high-pressure carbon dioxide and pressure relief device should have the pressure relief direction away from the operating surface. The installation of the selector valve should ensure that the manual handle is on one side of the operating surface, and measures for easy operation should be taken when the installation height exceeds 1.7 meters.

25. For high-pressure CO2 automatic fire extinguishing systems, it is advisable to use a selection valve with threaded connections, and the pipe connections should be made with flexible couplings.

26. For the high-pressure CO2 automatic fire extinguishing system, the fire extinguishing agent transmission pipeline should be fitted with a sleeve when passing through walls and floors. The length of the wall penetration sleeve should match the wall thickness, and the sleeve passing through the floor should extend 50mm above the ground. The gap between the pipeline and the sleeve should be filled with a flexible, non-combustible material to ensure a tight seal. The exterior of the fire extinguishing agent pipeline should be painted red.

27. Assembled steel cylinders for high-pressure carbon dioxide automatic fire extinguishing systems, valves, and other equipment should be sturdy, reliable, and maintain seal integrity. The pneumatic starting pipeline is a critical component, and there should be no leaks between the copper pipes and their fittings.

28. The installation of high-pressure carbon dioxide automatic fire extinguishing system equipment should be carried out under the guidance of the supplier's technical personnel. After the system is installed, it should be adjusted (in terms of mechanics, electrical control, etc.) and inspected.

29. During the inspection and debugging process of the high-pressure carbon dioxide automatic fire extinguishing system, the power lines must be disconnected to avoid unnecessary losses. After the equipment installation and debugging are completed, the fire extinguishing device should be in an automatic fire extinguishing state.

20. The extinguishing agent storage cylinder of the high-pressure carbon dioxide automatic fire extinguishing system should be clearly marked with the name of the extinguishing agent specified by the design and the identification number of the storage container. The gas start storage bottle assembly should have distinct protective zone signs indicating the storage bottles used in each protected area.

21. The selector valve of the high-pressure carbon dioxide automatic fire extinguishing system should be marked with a protective name or number, and the label should be fixed near the operating handle. After the installation and debugging of the equipment are completed, a "No Unauthorized Movement" sign should be set up.

22. The protected area of the high-pressure CO2 automatic fire extinguishing system should have the "Fire Protection Zone XXX" sign as per the design drawing. This sign must correspond to the gas starting cylinder and the selector valve for the combination distribution system.

23. When installing a high-pressure CO2 automatic fire extinguishing system, pay attention to the correct orientation of the one-way and selector valves; do not reverse the inlet and outlet installation.

24. The high-pressure CO2 automatic fire extinguishing system determines the corresponding number of storage cylinders for each protected area based on the amount of extinguishing agent required, thereby properly connecting the pneumatic pipelines and one-way valves to ensure that the operation and the extinguishing agents (cylinders) released (opened) in each protected area meet the actual requirements.

25. When installing the high-pressure CO2 automatic fire extinguishing system, pay attention to attaching connectors to both ends of the high-pressure hose. The thread of both end connectors is M27*1.5-6H.

26. The pneumatic cylinders of the high-pressure CO2 automatic fire extinguishing system are filled at a pressure of 10MPa. When the pressure drops below 6MPa due to chronic leakage or other reasons, the cylinders must be refilled to 10MPa and a tightness test must be conducted to ensure the reliability of the system's pneumatics.

27. All connections in the piping of the high-pressure carbon dioxide automatic fire extinguishing system should be reliable, particularly those in the pneumatic start-up piping, with no leaks at all.

28. During installation, all components of the high-pressure CO2 automatic fire extinguishing system must be handled with care to prevent any磕碰, especially the bottle head valve and its filling valve, as well as the piston assembly. Any磕碰 may cause damage, potentially endangering personal safety.

29. The wiring of the alarm and control section (electrical part) of the high-pressure CO2 automatic fire extinguishing system should be ensured to be accurate, reliable, and free of any misjudgments.