Your Professional Nitrogen Injection Fire Protection System Supplier
A national high-tech enterprise focused on the power transmission and distribution sector, integrating R&D, production, sales, and service.Founded during a period of rapid development in China's power industry around the early to mid-2000s, the company capitalized on market demand generated by the construction and upgrading of power grids in Quzhou and surrounding areas. It established its foothold by relying on the local market.
Why Choose Us
Our Certificate
It holds over a hundred independent intellectual property rights and has achieved certifications including ISO9001 Quality Management System, ISO14001 Environmental Management System, ISO45001 Occupational Health and Safety Management System, ISO 50001 Energy Management System, and Social Responsibility Management System.
Advanced equipment
Our manufacturing facility is equipped with advanced machinery such as laser cutting machines, CNC punch presses and press brakes, welding and grinding robots, hydraulic shears, lathes, milling machines, and overhead cranes. We also operate complete surface treatment systems, including powder coating, curing ovens, and shot blasting equipment, ensuring efficient production and high-quality results.
Production Market
Our global footprint spans the Middle East, Southeast Asia, Europe, and Africa, supplying core electrical equipment for demanding industrial environments. With proven products and professional services, we reliably meet diverse technical needs and serve as a trusted partner worldwide.
Our Service
Our service supports you from pre-sales to after-sales. We provide one-on-one consultations to customize packaging solutions, strictly control production to ensure quality and on-time delivery with real-time updates, and offer comprehensive after-sales support for fast responses and a worry-free partnership.
1. Low investment cost compared to other conventional systems, with retrofitting possible using existing openings.
2. Minimal maintenance and running costs.
3. Automatic and manual extinguishing system operable from the field and control room, unaffected by climatic changes.
4. Suitable for indoor/outdoor installation with minimal space requirements.
5. Multiple signals for activation eliminate false alarms. The system is fully automatic, unattended, and foolproof.
6. Operable manually/automatically and locally/remotely.
Activating Signals and Action Sequence: When all activating signals are received, the system initiates a series of actions. It drains a predetermined volume of hot oil from the top of the tank through an outlet valve to reduce tank pressure.
Nitrogen Gas Injection: Simultaneously, high-pressure nitrogen gas is injected into the tank. The nitrogen gas stirs the oil at a pre-fixed rate, reducing the temperature of the top oil layer. The drained oil creates space within the tank, which is then occupied by the nitrogen, forming an insulating layer over the remaining oil, preventing fire exacerbation and providing additional safety.
Conservator Isolation Valve: The transformer conservator isolation valve blocks the flow of oil from the conservator tank during critical events like tank rupture, explosion, or bushing bursts.
Product Paramenters
|
No. |
Specification |
Technical Parameter |
|
1 |
Working Pressure |
20MPa |
|
2 |
Device Model |
QMD20/80 |
|
3 |
Capacity |
80Ltr |
|
4 |
Filling Capacity of Gas |
20kg |
|
5 |
Outside Diameter of Cylinder |
Φ267mm |
|
6 |
Height of Cylinder |
1910mm |
|
7 |
Spraying Time |
≤120s |
|
8 |
Max Filling Rate |
0.25kg/L |
|
9 |
Power |
DC24V/1.6A |
|
10 |
Nitrogen Pressure of Driving Device |
6.0±1.0MPa(20℃) |
|
11 |
Condition of Reserving Room for Container |
Temperature: 0~50℃ |
|
12 |
Max Working Pressure |
23.2MPa |
|
13 |
Min Working Pressure |
18MPa |
Ingredients Used in Fire Extinguishers
The composition of nitrogen injection fire protection varies depending on the type of extinguisher and its intended use. Water extinguishers contain treated water, sometimes mixed with additives to enhance cooling and suppressive capabilities. Foam extinguishers utilize a mixture of water, foam concentrate, and air, creating a blanket that smothers the fire. Dry chemical extinguishers use powdered agents such as monoammonium phosphate or sodium bicarbonate, which interrupt chemical reactions in the fire. CO2 extinguishers contain carbon dioxide gas, which displaces oxygen and cools the fire without leaving residue. The choice of ingredients in nitrogen injection fire protection is critical for ensuring effectiveness and safety in fire suppression.
Application of Nitrogen Injection Fire Protection System
Transformer Protection
Safeguards high-value transformers from internal arcing, dielectric breakdown, or bushing failures that can lead to catastrophic explosions and fires.
Explosion Prevention
Rapidly drains oil and injects nitrogen to reduce internal pressure and displace oxygen, preventing tank rupture.
Fire Extinguishing (Internal & External)
Creates an inert layer (lowering oxygen levels below combustion point) and cools the oil to extinguish fires, including those on the top cover or surrounding equipment.
Industrial Environments
Ideal for power substations, manufacturing plants, and mining operations where high-value equipment and significant fire risks exist.
Packaging and Transportation
FAQ
We are one of the most experienced nitrogen injection fire protection system manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to buy nitrogen injection fire protection system for sale here from our factory. For quotation, contact us now.
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