TaiCangSuanFire Equipment Co.,Ltd.

Low Pressure Co2 Fire Extinguishing Equipment

Introduction to the Low Pressure co2Automatic Fire Extinguishing Equipment

The low pressure Co2 automatic fire extinguishing equipment is an automatic fire extinguishing equipment developed based on the low pressure Co2 automatic fire extinguishing concept, with better performance, and it is a new-type automatic fire-extinguishing system emerging from the 1990s. The system is characterized as comprehensive functionality, good automation performance, reliable and accurate operation, etc. It is mainly composed of the tank assembly (including the storage tank, safety valve, liquid lever meter, pressure gauge, pressure switch, etc.), Maintenance valve, master valve, selector valve, magnetic valve, refrigeration unit, control cabinet, nozzle, pipe and pipe accessory, etc.
In addition, it is also featured with the Co2 inerting function based on the low pressure Co2 automatic fire-extinguishing system, and thus is a specialized device for reduction of explosive concentration in cement manufacturing and power generation. It is characterized as comprehensive functionality, good automation performance, reliable and accurate operation, etc. It is mainly composed of the inerting master valve, vaporizer, pressure reduction device, inerting selector valve, magnetic valve, refrigeration unit, inerting device control cabinet, nozzle, pipe and pipe accessory, etc. After receiving the release signal from the protection zone or the central control room, it can timely vaporize the release Co2, reduce the pressure and distribute the vaporized carbon dioxide to the protection zone which requires inerting to reduce the explosive concentration in the protection zone, and this process generally lasts for 8 hours.
QMED series low pressure Co2 equipment is characterized as reliable and secure actuation, convenient operation, ease of installation, reset and maintenance & repair, etc. The system can provide automatic monitoring and continuously display pressure and liquid level, and is designed with automatic alarm of high/low pressure and high/low liquid levels. Its refrigerator can be started and shut automatically. The turn-on and turn-off time of the master valve and the selector valve can be controlled by programming based on the size of the protection zone, to realize the objective of reliable fire extinguishing.

In conclusion, the low pressure Co2 system will be increasingly popular in the market thanks to its high efficiency, low cost, free of pollution, wide range of application and superior expandability, etc.

Main parameters of the equipment:

Model

Design pressure (MPa)

Extinguishing agent storage temperature (℃)

Filling rate (kg/l)

Operating temperature (℃)

Working voltage (V)

Refrigeration unit

QMED-6.7-W/P-SA

2.5

-20--18

≤0.95

-23-+50

AC220/380

DC24±3

Dual refrigeration

QMED-11.1-W/P-SA

2.5

-20--18

≤0.95

-23-+50

AC220/380

DC24±3

Dual refrigeration

Parameters of the refrigeration unit

Refrigeration unit

Model

Refrigerant

Nominal horsepower (hp)

Net weight (Kg)

Operational current (A)

Maximum current (A)

Voltage (V)

Input power (W)

TAG2516ZBR

R404A

106

5.18

10.7

380

3151

Shape and connection dimensions of storage tank

Tonnage (t)

(mm)

Gross weight (including extinguishing agent) (t)

Emission caliber (mm)

6300

2400

2900

150

8500

2400

2900

150

The components of the fire-extinguishing system:

Designations of the main components and the function table:

Serial No.	Name	Function
1	Refrigeration unit	It ensures that the Co2 extinguishing agent in the storage tank is in a low temperature and low pressure state in the long term.
2	Storage tank	It stores the Co2 extinguishing agent in low temperature and low pressure.
3	Maintenance valve	Normally open, and closed upon overhaul of the master valve.
4	Pressure reducing valve	It reduces the pressure of the air source in the pipeline that controls the master valve.
5	Start-up pipeline maintenance valve	Normally open, and closed upon overhaul of the start-up pipeline
6	Magnetic valve	It controls on and off of the master valve and the selector valve.
7	Master valve	Normally closed, and opened upon fire extinguishing to release the Co2 extinguishing agent.
8	Safety relief valve	When the pressure in the system's pipeline is excessively high, the diaphragm blasts to protect the system.
9	Pressure switch	It sends the signals of opening and closing statuses of the selector valve to the control cabinet.
10	Selector valve	It controls the Co2 extinguishing agent to flow to the protection zone which needs extinguishing.
11	Control cabinet	It provides status monitoring of the storage tank, and executes the extinguishing command.
12	Self-locking pressure switch	When the extinguishing agent is released, it sends the extinguishing agent release signal to the alarm extinguishing controller.
13	Nozzle	It ejects Co2 extinguishing agent for fire extinguishing.
14	Fire detector	It detects fire and sends fire signal to the alarm extinguishing controller.
15	Manual control box	It realizes manual operation and emergency stop operation of the system.
16	Gas release display	It alerts people in the site that the Co2 extinguishing agent is released
17	Sound and light alarm	It sends sound-light alarms once the system detects fire.
18	Alarm extinguishing controller	It provides fire alarming and sends fire extinguishing command.

The components of the inerting system:

Designations of main components of the low pressure Co2 inerting equipment and their functions are shown in the following table:

Serial No.	Name	Function
1	Refrigeration unit	It ensures that the Co2 extinguishing agent in the storage tank is in a low temperature and low pressure state in the long term.
2	Storage tank	It stores the Co2 extinguishing agent in low temperature and low pressure.
3	Start-up pipeline maintenance valve	Normally open, and closed upon overhaul of the start-up pipeline
4	Safety relief valve	When the pressure in the system's pipeline is excessively high, open the protection system.
5	Inerting master valve	Normally closed, and opened upon inerting to release the Co2 extinguishing agent.
6	Vaporizer and controller	It provides heat preservation in normal cases, and provides heating upon inerting to generate sufficient heat
7	Pressure reduction device	It is at the servo status in normal cases, and can cancel pressure reduction in emergencies.
8	Pressure reducing valve	It is at the servo status in normal cases, to reduce pressure in the inerting master valve's cylinder.
9	Magnetic valve	It controls opening and closing of the inerting master valve and the inerting selector valve.
10	Inerting selector valve	It controls the Co2 extinguishing agent to flow to the protection zone which needs inerting.
11	Inerting device control cabinet	It provides status monitoring of the storage tank, and executes the inerting command.
12	Nozzle	It ejects Co2 extinguishing agent for fire inerting.
13	Combustible gas detector	It detects the concentrate of the flammable gas in the protection zone, and sends feedback of out-of-limit concentrate to the inerting controller.
14	Manual control box	It realizes manual operation and emergency stop operation of the system.
15	Gas release display	It alerts people in the site that the inert gas is released.
16	Sound and light alarm	It sends sound-light alarms once the system detects out-of-limit concentrate.
17	Alarm controller	It is at the alarm servo status to receive and transmit inerting signals.

Notes: 1. We can customize the produce for various specifications based on customer requirements.

2. Since the low pressure Co2 fire extinguishing equipment is sophisticated, please contact us via mail or telephone for more details, and we will be honored to serve you

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