Advantages of gas low nitrogen condensing steam boiler

As the country pays more and more attention to environmental protection, economic development has gradually changed from extensive development to a conservation-oriented economy, which has placed higher demands on the discharge of social activities.

As an important participant in social development, boilers are in an important position in the social economy. Therefore, with the changes in national policies, low-nitrogen boilers are now being used as local boiler emission standards in more and more places.

Low-nitrogen boilers refer to the emission of nitrogen oxides in the exhaust gas after combustion of the boiler is below 80 mg/cubic, and the ultra-low nitrogen is generally controlled below 30 mg. The corresponding policies vary from region to region, and the basic requirements are different. The low-nitrogen boiler refers to the requirement that the boiler exhaust gas reaches low nitrogen after the original boiler is reformed, or the new boiler furnace type and burner are specially designed and modified to meet the requirements of low nitrogen emission.

The low-nitrogen boiler produced by Shanghai Yangnuo Boiler Manufacturing Co., Ltd. has obvious advantages over traditional coal-fired boilers, oil-fired boilers and gas-fired boilers, which are embodied in the following aspects:

First, low nitrogen emissions

In terms of appearance, Shanghai Yangnuo low-nitrogen boiler adopts a tubular cross-flow natural circulation structure, which is in the form of full premixed combustion of large furnaces, that is, natural gas is directly mixed with air before combustion to achieve the best combustion ratio, so that the gas is fully combustion. In addition, low-nitrogen boilers use core technologies such as full premixed surface combustion. The boiler NOx emissions reach the standard value. The blue flame burners in the boiler configuration can also be reduced to the corresponding national emission standards.

Second, high thermal efficiency

Low-nitrogen boilers are equipped with high-efficiency condensing energy-saving devices, high-tech equipment using high-efficiency threaded finned tubes, greatly optimizing heat transfer efficiency, thereby enhancing boiler heat transfer performance, improving thermal efficiency, and making boiler operating efficiency greater than 97%. This greatly reduces the operating cost of the boiler.

Third, the use of quality materials

The stability, heat transfer and service life of the equipment are the purpose of material selection. The low-nitrogen boiler pipe is made of high-quality low and medium-pressure boiler seamless pipes. These pipes serve as passages to ensure safe operation. Under the same combustion intensity, the seamless pipes ensure the formation of high-quality and durable low-nitrogen boilers. At the same time, because the condensate of the condensing boiler has strong corrosiveness, the energy-saving condenser of Shanghai Yangnuo boiler adopts ND steel, which has strong corrosion resistance and stability, and ensures long-term safe and stable operation of the equipment. .

Fourth, liquid crystal display intelligent control

As a conventional boiler, the low-nitrogen boiler is more complicated in structure, the precision of the equipment is higher, and the precise control system is required to ensure safety. Therefore, low-nitrogen boilers generally require intelligent, modern controllers that can easily meet the exact requirements of control systems such as boiler start-up, operation, shutdown, and alarm. In the actual operation of the equipment, the boiler can be started and stopped with a single push.

Fifth, the equipment is simple to install and safe to use

The low-nitrogen boilers produced by Shanghai Yannuo will be installed and burned before leaving the factory to ensure that the equipment will reach the customer's site and the water, gas and electricity will be connected to the normal operation. In addition, the equipment is equipped with leakage protection, water shortage protection, overpressure protection, etc. to ensure the normal and safe use of the equipment, and the customer has no worries.

From the above advantages, we can see that the low nitrogen gas steam boiler will bring more benefits to our production and life than the traditional boiler:

1. Help improve air quality and contribute to national environmental protection

Reducing NOx emissions is a need to improve ambient air quality. Monitoring data in recent years have shown that nitrogen oxides are prone to respiratory diseases, and nitrogen oxides are an important cause of photochemical smog and acid rain. The typical characteristic pollutant PM2.5 has a large over-standard ratio and regional long-term severe over-standard conditions, and the improvement of ambient air quality faces great challenges. Reforming low-nitrogen boilers has become an inevitable trend of development.

2, more complete combustion, higher thermal efficiency, greatly reducing the cost of use

Shanghai Yannuo small low-nitrogen gas boilers use surface combustion, and natural gas has been pre-mixed with air according to the optimal combustion ratio before ignition to ensure more complete combustion. At the same time, the surface of the combustion cylinder has a lower flame temperature, which ensures that the boiler has higher heat absorption and lower exhaust gas temperature. The equipment is equipped with a condensing energy saver, which effectively improves the thermal efficiency and reduces the exhaust gas temperature. It also greatly saves the cost of using the customer.