Equipment performance

1Provide***Optimized system energy-saving design solutions:1Condensate Recovery System Design Proposal, Reduces Gas Consumption2Electrical control system design scheme, reduce power consumption

2Equipped with imported brand burners, high level of automation, automatically blows according to controller instructions, electronic automatic ignition, automatic combustion, automatic proportioning of fuel-oil (gas), performance is safe and stable, with excellent combustion effect. It also features an extinguishing protection device to ensure safe operation.

3Computerized bath boiler controller, all functions are magically stored on a smart chip, the boiler can be turned on with one button, operates automatically with timed and temperature settings. Users can set the boiler's start and stop times, and once set, no one needs to be on-site, saving time and effort.

4The fire tube is fitted with flame-retardant baffles, which slow down the smoke exhaust speed, enhance heat exchange, and result in lower smoke temperature exiting the smoke chamber, reducing heat loss and saving fuel.

Boiler heat loss

1. The heat loss caused by flue gas emissions from gas-fired boilers is mainly due to the volume of flue gas and the emission temperature. During the flue gas exhaust process, when the boiler is not in a sealed state, air flow will carry away some heat, resulting in heat loss. Flue gas exhaust accounts for the largest proportion of heat loss, approximately 4.5%-8.2%.

2. Heat loss due to incomplete fuel combustion, primarily caused by two factors. One is the presence of combustible gas components in the flue gas within the boiler, which is related to the furnace temperature, air coefficient, and the mixing flow of fuel and gas, thereby affecting the volatilization rate and content of the fuel. The other is the incomplete combustion of solid fuel, where the influence is more on the granular nature of the solid fuel. During combustion, if the temperature is not high and the airflow is poor, the flying ash can easily form deposits. With too much accumulation, the remaining fuel particles cannot be fully combusted, leading to the formation of carbon black and causing heat loss in solid fuel gas boilers. Factors such as fuel properties, moisture content, temperature, power load, and the air propulsion force within the boiler can easily lead to heat loss in fuel.

3. Heat Loss from Gas Boilers: The heat lost to the external air through the metal structures exposed to the atmosphere of the boiler unit, such as the furnace walls and flues, is referred to as heat loss due to radiation. This loss is directly related to the surface area of the boiler unit, its insulation, and thermal insulation conditions.

4. Heat loss from boiler ash and slag sediment: During the combustion process of fuel in a gas boiler, as the internal temperature of the boiler continuously rises, the heat loss caused by expelling heat outside the boiler is referred to as heat loss from boiler ash and slag sediment.

Combustion Equipment

During the development of boilers, the type of fuel has a significant impact on the furnace and combustion equipment. Therefore, it is not only necessary to develop various furnace types to accommodate the combustion characteristics of different fuels but also to enhance combustion efficiency to conserve energy. Moreover, technological improvements in the furnace and combustion equipment require minimizing pollutants (*oxides and nitrogen oxides) in the boiler exhaust.

Mechanized Grate

Early potshell boilers used fixed grates, primarily burning high-quality coal and wood, with manual operations for coal addition and slag removal. The introduction of the straight tube boiler led to the adoption of mechanical grates, with chain grates becoming widely used. The under-grate air supply evolved from a non-segmented "common storage air" to segmented air supply. Initially, the furnace was low and had low combustion efficiency. Later, it was realized that the furnace volume and structure play a crucial role in combustion. By increasing the height of the furnace and incorporating arches and secondary air, combustion efficiency was improved.

Room heater

Generators with power over 6 megawatts, the grate sizes of these layer-type furnaces are too large and the structures are complex, making them difficult to arrange. Therefore, room furnaces began to be used in the 1920s, which burn coal powder and oil. Coal is ground into coal powder by a coal mill and then injected into the furnace chamber for combustion through burners, thereby no longer being limited by the combustion equipment for the generator set's capacity. Since the early stages of World War II, nearly all power station boilers have adopted room furnaces.

Direct Current Burner

Early coal powder furnaces used an U-shaped flame. The coal powder stream ejected by the burner first descends and then turns to ascend in the furnace chamber. Later, a swirl-type burner arranged on the front wall emerged, forming an L-shaped torch in the furnace. As the boiler capacity increased, the number of swirl burners also began to rise, which could be arranged on both sides or the front and back walls. Around 1930, a straight-flow burner arranged at the four corners of the furnace emerged, mostly adopting a circular combustion method.

Fuel boiler

Post-World War II, with oil prices low, many countries began widely using oil-fired boilers. These boilers were easy to automate. After oil prices increased in the 1970s, many countries shifted back to utilizing coal resources. At this time, the capacity of power plant boilers also grew larger, requiring combustion equipment not only to burn completely and ignite stably, operate reliably, and have good low-load performance, but also to reduce pollutants in the exhaust smoke.

In coal-fired (especially lignite-fired) power plant boilers, the use of staged combustion or low-temperature combustion technology, such as delaying the mixing of coal powder with air or adding flue gas to the air to slow down combustion, or dispersing burners to control furnace temperature, not only inhibits the formation of nitrogen oxides but also reduces slagging. Boiling combustion, which is a type of low-temperature combustion, can not only burn solid fuels with very high combustible ash content but also incorporate limestone into the boiling bed for desulfurization.

Gas Boiler

Boilers were once a symbol of the industrial age, but as time has passed, this product of the old industrial era is hard to fully meet the needs of modern enterprises. So, how should boiler companies, plagued by diseases, solve their problems? Gas boilers can help you out!

Generally, common issues with boilers include being costly and environmentally unfriendly, posing significant safety risks, requiring large spaces and dedicated management, and being麻烦 to operate due to the need for various safety permits. Using a gas hot water heater can address all these issues. Firstly, regarding cost and environmental concerns, gas boilers use combustible gases with no pollution emissions. They also come with intelligent pressure control, eliminating risks like explosions or carbon monoxide poisoning. Due to advanced technology, these gas boilers occupy less space, are easy to operate without the need for specialized staff, and operate automatically with just a button press. Since they are not coal-fired boilers, no safety permits are required.