The principle of boiler heating is a kind of thermal equipment that uses the heat energy released after fuel combustion or the waste heat in industrial production to transfer to the water in the container, so that the water can reach the required temperature or steam with a certain pressure. After the water enters the gas boiler, the heated surface of the gas boiler transfers the absorbed heat to the water in the steam-water system, so that the water is heated into hot water with a certain tempe...
Hot-blast stove is a thermal power machine, which is a thermal equipment that integrates combustion and heat transfer process of hot air flow for technological needs. Generally, there are two major types, namely intermittent regenerative hot-blast stove and continuous heat exchange hot-blast stove. There are many varieties and complete series of hot-blast stoves, which are divided into hand-fired and machine-fired by adding coal, and coal, oil and gas stoves by fuel types. So does the ho...
Before the technical communication, there is no way for any manufacturer to give an accurate figure about the price of oil-fired gas-fired steam boiler immediately.
The price of oil-fired steam boiler is mainly affected by the following factors:
1. Technical parameters such as tonnage, pressure, temperature and thermal efficiency
2. Specific system configuration and brand of the boiler
3. Manufacturing process of the boiler
4. The altitude of the area where the boiler is used
5. Freight, s...
Two characteristics of environment-friendly thermal oil heater
1. Ultra-low nitrogen emission
Countries or regions, according to the actual environmental situation, have formulated the corresponding emission standards of boiler air pollutants, which have clear requirements for nitrogen oxides, sulfur dioxide, dust and flue gas blackness.
As a professional manufacturer of environment-friendly thermal oil heater, ZOZEN deeply studies low-nitrogen combustion technology, and its environment-frien...
The manufacturers with different scales will have different price policy on the natural gas boilers. The prices of natural gas steam boilers in some large boiler enterprises are higher, while those in some small enterprises are lower. The difference lies in the raw materials, the production process, the quality of employees, and the service management of the company.
To guarantee the successful and efficient shell boiler operation, the user must:
1)Know the conditions, environment, and demand characteristics of the plant, and accurately specify these conditions to the boiler manufacturer.
2)Provide a boiler house layout and installation that promotes good operation and maintenance.
3)Select the control systems that allow the boiler to operate safely and efficiently.
4)Select the control systems that will support the boiler in supplying dry steam to the plant at the required pressure(s) and flowrate(s).
5)Identify the fuel to be used and, if necessary, where and how the fuel reserve is to be safely stored.
The term “boiler efficiency” is often substituted for thermal efficiency or fuel-to-steam efficiency. When the term “boiler efficiency” is used, it is important to know which type of efficiency is being represented. Why? Because thermal efficiency, which does not account for radiation and convection losses, is not an indication of the true boiler efficiency. Fuelto-steam efficiency, which does account for radiation and convection losses, is a true indication of overall boiler efficiency. The term “boiler efficiency” should be defined by the boiler manufacturer before it is used in any economic evaluation.
Excess air provides safe operation above stoichiometric conditions. A burner is typically set up with 15% to 20% excess air in higher firing ranges. Higher excess air levels result in fuel being used to heat the air instead of transferring it to usable energy, increasing stack losses and significantly decreasing efficiency. Boilers with lower excess air throughout the operating range have higher efficiencies.
