Novel annular combustion chamber oil-fired gas-fired boiler

[0017] Example 1: The structure of a new type of annular combustion chamber fuel gas steam boiler figure 1 As shown, figure 2 Is the structure of the furnace, image 3 It is the internal structure diagram of the furnace. The boiler shell is arranged upright, and the outer side of the boiler shell is equipped with 4 burners 2 along the tangent line of the boiler, and the boiler shell is arranged in the center of the boiler shell. The upper cylinder 5 of the shell has an outlet connecting the flue gas discharge pipe 1 outside the shell and inside the furnace. The lower cylinder 4 of the shell has four inlets for connecting the outside of the shell and the combustion chamber in the furnace. The flame injection pipe of the burner 2 is inserted into the combustion chamber through a pipe 8 connecting the outside of the pot shell and the combustion chamber in the furnace. The pipe 8 connecting the outside of the pot shell and the combustion chamber in the furnace liner, and the flue gas discharge pipe 1 connecting the outside of the pot shell and the inside of the furnace shell fix the furnace inside the pot shell. A water inlet pipe 3 is arranged at the bottom end of the pot shell, and a steam discharge pipe 6 is arranged at the top end of the pot shell. The bottom of the furnace is two concentric cylinders with the same bottom. The lower outer cylinder 12 of the furnace is higher than the inner cylinder 9 of the lower furnace. The inner upper end of the inner cylinder 9 at the lower part of the furnace bladder is horizontally closed with a flat plate to form a flat plate 10 at the upper end of the inner cylinder of the lower furnace bladder. The upper and lower ends of the lower inner cylinder 9 of the furnace liner and the lower outer cylinder 12 of the furnace liner are closed horizontally with flat plates, and the upper end surface is subject to the height of the lower outer cylinder 12 of the furnace liner, forming a ring shape connecting the upper space of the furnace liner Combustion chamber. The lower end surfaces of the inner cylinder 9 of the lower part of the furnace and the outer cylinder 12 of the lower part of the furnace are the lower end 11 of the furnace. There are a plurality of parallel water pipes 14 between the upper end plate 10 in the inner cylinder of the lower inner cylinder of the furnace and the upper end surface 7 of the furnace. The parallel water pipe 14 surrounds a furnace upper cylinder 13 connecting the upper end surface 7 of the furnace liner and the upper end surface of the annular combustion chamber. The space in the upper cylinder 13 of the furnace and between the parallel water pipes 14 constitutes a flue gas outlet channel. The outer surface of the pot shell is wrapped with an insulating layer.

[0018] The working process of embodiment 1 is: inject pure water into the pot shell through the water inlet pipe 3. The four burners 2 ignite and burn, and the flame rotates upward in the ring-shaped combustion chamber. The flue gas formed by combustion heats the water in the parallel water pipe 14 and the water outside the upper cylinder 13 of the furnace bladder in the flue gas outlet channel, and finally exits the boiler through the flue gas discharge pipe 1 connecting the outside of the boiler shell and the inside of the furnace. After the water in the parallel water pipe 14 and the water outside the upper cylinder 13 of the bladder absorb heat and become steam, it is discharged from the boiler through the steam discharge pipe.

[0019] Example 2: The structure of a new type of annular combustion chamber fuel gas hot water boiler Figure 4 As shown, due to the low heating power, only one burner is provided. The hot water boiler inlet pipe 16 is set on the top of the boiler shell, the outlet pipe is set on the annular combustion chamber, and the outlet pipe leads into the annular hot water tank 15 outside the upper cylinder of the boiler shell. A hot water valve is installed on the hot water tank 15 .

[0020] The working process of Embodiment 2 is: the water inlet pipe 16 of the hot water boiler is connected to the tap water pipe and tap water is connected, and the burner ignites and burns. When the water temperature reaches the specified temperature, the hot water valve on the hot water tank 15 can be opened to take hot water. The tap water pipe automatically replenishes water.