Needle tube oil burning boiler with energy-saving economizer

Abstract

The invention discloses a needle tube oil burning boiler with an energy-saving economizer, which structurally comprises a casing and an energy-saving economizer casing. A hearth is arranged inside the casing, the top of the hearth is connected with a plurality of needle tube assemblies, a smoke box is arranged at the top of the casing, the tops of the needle tube assemblies are communicated with the smoke box, a steam outlet is further arranged at the top of the casing, and the smoke box is connected with the energy-saving economizer. The bottom of the energy-saving economizer casing is communicated with the smoke box, an exhaust pipeline is connected onto the energy-saving economizer casing, a coiled pipe is arranged inside the energy-saving economizer casing, an upper connector of the coiled pipe is connected with a water supply connector, and a lower connector of the coiled pipe is communicated with an inner cavity of the casing. The needle tube oil burning boiler with the energy-saving economizer fully utilizes waste heat of smoke in the smoke box, reduces heat energy loss, improves the economic operation level and reduces the operation cost.

Description

technical field [0001] The invention relates to the field of marine boilers, in particular to a needle-shaped tube oil-fired boiler among marine boilers. Background technique [0002] In order to reduce smoke and dust pollution and protect the atmospheric environment, oil-fired boilers are gradually replacing coal-fired boilers, and oil-fired boilers have a small footprint, high thermal efficiency, and a high degree of automation. However, the operating cost of oil-fired boilers is high, so improving the economical operation level of oil-fired boilers is a new topic for oil-fired boilers to reduce consumption and improve efficiency. [0003] The needle-tube oil-fired boiler is a kind of heat exchange equipment that converts water into steam by burning various fuels, and the released heat is transferred to water through the heat transfer process. The structure of a traditional needle-tube oil-fired boiler mainly includes: a shell, a furnace is arranged inside the shell, a nu...

AI Technical Summary

Problems solved by technology

Therefore, the temperature of the flue gas discharged from the exhaust pipe on the smoke box is still very high, generally 300 ° C ~ 400 ° C, it is obviously uneconomical to directly discharge such high temperature flue gas

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