In recent years, natural gas boiler has become the most fire boiler in the industrial boiler market, whether it is gas steam boiler or gas hot water boiler, in general, gas boiler with natural gas, liquefied gas, city gas and other gas fuel as fuel. Because gas steam boilers have an extremely wide range of applications, there are also many customers want to know the working principle of gas steam boilers, so what is the natural gas boiler principle?
Gas fired steam boiler fuel combustion in the furnace released heat, heating the water in the pot, so that it is vaporized into steam. The water in the pot (drum) is constantly heated by the energy released from the combustion of the gaseous fuel in the furnace, which raises the temperature and produces pressurized steam. Since the boiling point of water increases with the increase of the pressure, the pot is sealed. The expansion of water vapor in the inside is limited and the pressure is generated to form the thermal power (strictly speaking, the steam of the boiler is the water heated in the drum at constant pressure to the saturated water and then vaporized) as a kind of energy is widely used. This is the basic principle of gas steam boiler.
Natural gas steam boiler is mainly composed of two main parts of the shell and the furnace and to ensure its safe and economic continuous operation of accessories, instrumentation equipment, automatic control and protection system. The natural gas boiler principle is reasonable. The boiler is a boiler drum with water cooling wall. Two return pyrotechnics tubes are arranged in the left and right areas of the drum, and the front smoke box is turned back in the front of the drum. Between the drum and the lower box, there are descending tubes and water-cooled wall tubes, which constitute the frame of the combustion chamber. There is a soda separator on the top of the drum to reduce the water carried out by steam. The heating surface of the pot body is the lower part of the drum, the water-cooled wall pipe and the pyrotechnic pipe.
This series steam boiler is a heat energy conversion equipment that uses natural gas as fuel, burns the heat released in the furnace, heats the water in the pot, and vaporizes it into steam. The water in the pot (drum) is constantly heated by the energy released from the combustion of the gaseous fuel in the furnace, which raises the temperature and produces pressurized steam. Since the boiling point of water increases with the increase of the pressure, the pot is sealed. The expansion of water vapor in the inside is limited and the pressure is generated to form the thermal power (strictly speaking, the steam of the boiler is the water heated in the drum at constant pressure to the saturated water and then vaporized) as a kind of energy is widely used.
In the use of natural gas steam boiler, first of all to ensure that the water boiler after qualified treatment. Whether polluted water, or high hardness, acid and alkali water will affect the service life of the boiler, serious may cause an accident, so the heated water must be pretreated when it is input into the steam boiler. This series of boiler products input water temperature should be kept above 20℃ and close to the furnace body temperature as far as possible, so as to improve the boiler efficiency, save energy consumption are good.
Natural gas boiler principle design is reasonable, the use of automatic intelligent control system, high degree of automation. Adopt continuous water supply, with functions of high temperature, high pressure, low water level alarm, furnace stop, etc., the operation is safe and stable, and the service life is long. The above briefly introduces the “natural gas steam boiler structure and principle” of the problem, I hope to help you. Zozen Boilers dedicated to boiler industry for many years, good at producing and heating boiler type selection and technical support, welcome to consult.