Equipment Performance

1Provide***Superior energy-saving system design solutions:1Condensate Recovery System Design Proposal, Reduces Gas Consumption2Electrical control system design solution, reduced energy consumption

2Equipped with imported brand burners, high degree of automation, automatically blowing according to controller instructions, electronic automatic ignition, automatic combustion, and automatic proportioning of oil (gas), with excellent performance and safety stability, and good 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, one-touch boiler startup, fully automatic timing and temperature control. Users can set the boiler's start and stop times. Once set, no need for constant supervision, convenient and labor-saving.

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

Boiler heat loss

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

2. Heat loss due to incomplete fuel combustion is primarily caused by two factors. First, the presence of combustible gas components in the flue gas inside the boiler, which is related to the furnace temperature, air coefficient, and the mixing flow of fuel and gas, thus affecting the volatilization speed and content of the fuel. Second, incomplete combustion of solid fuel, which is more influenced by the particle-like nature of the solid fuel. During combustion, if the temperature is not high and the airflow is poor, the fly ash can easily form deposits. Too much accumulation of deposits prevents the remaining fuel particles from being fully combusted, leading to the formation of soot. This results in heat loss for solid fuel in gas boilers that have not been completely burned. Factors such as the nature of the fuel, moisture content, temperature, power load, and the air propulsion force inside the boiler can easily cause heat loss from fuel.

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

4. Heat loss due to 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 that is expelled outside the boiler is referred to as heat loss due to 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 not only requires the development of various furnace types to accommodate the combustion characteristics of different fuels but also to enhance combustion efficiency for energy conservation. Moreover, technical improvements to the furnace and combustion equipment necessitate minimizing pollutants (*oxides and nitrogen oxides) in the boiler's exhaust smoke.

Mechanized Grate

Early potshell boilers used fixed grates, primarily burning high-quality coal and wood, with coal addition and slag removal performed manually. 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 unified "warehouse wind" to segmented supply. Initially, the firebox was low and inefficient in combustion. Later, the importance of the firebox volume and structure in combustion was recognized, leading to taller fireboxes and the use of arches and secondary air, thereby improving combustion efficiency.

Room heater

When the generator set power exceeds 6 megawatts, the grate sizes of these layered stoker furnaces are too large and the structures are complex, making them difficult to arrange. Therefore, room-firing 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, thus removing the capacity limitations of the generator set by the combustion equipment. Since the early stages of World War II, almost all power station boilers have employed room-firing furnaces.

Direct Current Burner

Early coal powder furnaces utilized U-shaped flames. The coal powder air stream emitted by the burner first descends in the furnace chamber before turning and rising. 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-type burners also grew, which could be placed on both side walls or the front and rear walls. Around 1930, a straight-flow burner was introduced, positioned at the four corners of the furnace and mostly in a circular combustion pattern.

Fuel boiler

Post-World War II, with oil prices low, many countries began widely using oil-fired boilers. The automation of oil-fired boilers was easy to enhance. After oil prices surged in the 1970s, many countries shifted back to utilizing coal resources. At this time, the capacity of power plant boilers also increased, requiring combustion equipment not only to burn completely and have stable ignition but also to be reliable in operation, exhibit good low-load performance, and reduce pollutants in the exhaust smoke.

In coal-fired (especially lignite-fired) power plant boilers, employing 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 suppresses 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 add limestone to the boiling bed for desulfurization.

Gas Boiler

Boilers were once a symbol of the industrial age, but as time has passed, these relics of the old industrial era are increasingly difficult to fully meet the needs of modern enterprises. So, how should boiler companies, plagued by diseases, address this issue? Gas boilers can help you solve the problem!

Generally, common issues with boilers include being costly and environmentally unfriendly, posing significant safety risks, requiring dedicated management due to their large footprint, and being麻烦 to operate due to the need for various safety permits. Using a gas hot water boiler can address all these issues. Firstly, regarding cost and environmental concerns, gas boilers utilize combustible gases with zero pollution emissions. They also feature intelligent pressure control, eliminating risks like explosions or carbon monoxide poisoning. Due to advanced technology, these gas boilers have a small footprint, are easy to operate without needing a specialist, and run automatically with just a button press. As they are not coal-fired, no safety permits are required.

Product Alias

WNS2-1.25 gas boiler, 2-ton gas boiler, 2-ton gas steam boiler, 4-ton oil-fired boiler

Regions Served

National

Brand

Hezhou Pot

Boiler Applications

Industrial Boiler

Custom Processing

Sure

Export Pressure

Low-pressure

Smoke flow

Three-pass gas boiler

Installation Method

Rapid-install Boiler

Structural Form

Horizontal

Fuel

Gas Boiler

Burning Method

Room furnace

Applicable Fuel

Natural Gas

Recirculation method

Natural circulation boiler

Features

LHS/WSN Gas Steam Boiler

WNS Gas-Fired Hot Water and Steam Boilers Features:

Well-designed: Horizontal internal combustion three-return full-wet-back design, 100% wave-shaped furnace tube. Features good thermal expansion properties. Water-enclosed fire-shaping design, ample heating surface area and reasonable structural arrangement, ensuring high-efficiency operation of the boiler.

High Efficiency and Energy-Saving: The thermal efficiency of our steam and hot water boiler series ranges from 90% to 95%. The large combustion chamber, combined with reasonable structural arrangement, allows for more heat to be transferred into the water, greatly enhancing the heat exchange capability between fuel-steam and fuel-hot water.