5results about How to "Lower flame temperature" patented technology

This utility model discloses a tunnel fire-fighting foam liquid filling system, belonging to the field of fire-fighting equipment technology. It includes several fire boxes, a foam liquid filling vehicle, and a monitoring center. Both the fire boxes and the foam liquid filling vehicle are networked with the monitoring center to achieve data exchange. Specifically, each fire box contains a foam liquid storage tank and a first control device. The foam liquid storage tank is equipped with a first liquid level sensor, a solenoid valve, a variable frequency delivery pump, and a first flow meter. A flow regulating valve and a second flow meter are installed on the pressure water pipe. All components are connected to the first control device. The foam liquid filling vehicle contains a foam liquid storage tank, a variable frequency high-pressure pump, a battery, a third flow meter, and a second control device. Both the first and second control devices are connected to the monitoring center. This utility model provides a highly efficient, intelligent, and easy-to-maintain tunnel fire-fighting foam liquid filling system.

This invention belongs to the field of iron and steel metallurgy technology, specifically relating to a staged combustion system and process for a gas boiler. The system includes a burner connected to the gas boiler, a combustion-supporting gas structure, and a combustion-supporting air structure. The burner includes a combustion stabilizing plate, located at the front end of the burner and connected to the gas boiler. The combustion stabilizing plate has three layers of staged ignition units evenly arranged around its center: an inner layer, a middle layer, and an outer layer. The middle layer ignition unit includes multiple externally mixed combustion nozzles, where combustion-supporting air and gas mix outside the combustion stabilizing plate. The outer layer ignition unit includes multiple internally mixed combustion nozzles, where combustion-supporting air and gas mix inside the combustion stabilizing plate. The combustion-supporting gas structure provides fuel to the burner, and the combustion-supporting air structure provides combustion-supporting air to the burner. This invention effectively achieves complete combustion of the gas, reduces nitrogen oxide production, and provides a stable flame, demonstrating good performance in terms of safety, environmental protection, and efficiency.

This utility model discloses a yellow phosphorus tail gas combustion system that reduces the generation of acidic substances, belonging to the field of phosphorus chemical processing technology. It solves the problems of high cost, inefficiency, poor stability, and easy secondary pollution associated with existing technologies. The system includes three sequentially connected modules: tail gas pretreatment, combustion, and purification, forming a complete treatment pathway. The pretreatment module uses a centrifugal fan to transport the tail gas, a spray-filter desulfurization tower to remove sulfides, and a high-pressure backflush pipe to ensure stable airflow. The combustion module optimizes the air-fuel ratio, combines flue gas circulation and parameter monitoring to suppress nitrogen oxide generation, and is adapted to boiler waste heat utilization. The purification module is equipped with a waste heat recovery device before electrostatic precipitator to remove impurities. The system achieves desulfurization liquid regeneration and circulation, reduces equipment corrosion and treatment costs, ensures that exhaust gas emissions meet standards, and balances environmental protection and energy utilization efficiency.

The utility model discloses a kind of composite double-track fireproof shutter, it is related to rolling shutter door technical field, including rack, rolling shutter door body, the rack is equipped with the spray assembly that can automatically spray water and extinguish fire, the rack is also equipped with the drive assembly that can drive rolling shutter door body to lift;By setting the spray assembly that can automatically spray water on rolling shutter door body, water can be sprayed to fire area actively when fire occurs, water droplet disperses and evaporates in flame, absorbs a large amount of heat, so that flame temperature is reduced to below its critical extinguishing temperature, to effectively control fire spread;Water can also be sprayed to curtain surface of rolling shutter door body simultaneously, water evaporation heat absorption can effectively reduce curtain surface temperature, prevent curtain surface from deforming or damaging due to high temperature, prolong the fire resistance time of curtain surface, enhance the fire separation function of fireproof shutter.

This invention relates to the field of fire-resistant aluminum composite panel technology and discloses a method for producing and processing fire-resistant aluminum composite panels, including the following steps: Step S1: Raw materials are fed into the hopper of a twin-screw extruder via a screw feeder and then into the twin-screw extruder. The twin-screw extruder melts and plasticizes the raw materials and extrudes them through a T-die. Step S2: The T-die sends the molten raw materials to a three-roll calender. The three-roll calender cools the molten raw materials and rolls and shapes them into a flame-retardant core board. Step S3: The two sides of the flame-retardant core board are bonded to the aluminum plate with a polymer adhesive film. After cooling and shaping, it becomes a fire-resistant aluminum composite panel blank and is placed in the cutting area for later use. Step S4: The fire-resistant aluminum composite panel blank is cut into the required dimensions according to production requirements. The aluminum plate scraps generated during cutting are separated from the flame-retardant core board. The aluminum plate is sold, and the flame-retardant core board is returned to the screw feeder for recycling. The production process is more environmentally friendly.