Split assembly type natural gas-fired boiler

Abstract

The invention provides a split assembly type natural gas-fired boiler. The split assembly type natural gas-fired boiler comprises a boiler body, an economizer, a condenser and a burner. Water-cooled membrane type wall structures are arranged on the six faces of the boiler body, a left drum convection assembly and a right drum convection assembly are arranged on the left side and the right side inthe boiler body correspondingly, a separation drum is arranged above the boiler body, the upper portion of the separation drum is connected with the tops of the left drum convection assembly and the right drum convection assembly through a left steam guide pipe and a right steam guide pipe correspondingly, and the lower portion of the separation drum is connected with the bottoms of the left drumconvection assembly and the right drum convection assembly through a left water return pipe and a right water return pipe correspondingly. The split assembly type natural gas-fired boiler can be matched with a heated surface by increasing and decreasing the number of convection bank modules according to the size of the tonnage of the boiler, the purpose of adjusting the evaporation amount and theheating area of the assembly boiler in a modularization ratio and the purpose that loads are changed, but the smoke exhaust temperature is not relatively changed are achieved, and the situation that as the smoke temperature is too low, smoke carries excessive water, and low-temperature corrosion and flood gushing are caused is avoided.

Description

technical field [0001] The invention belongs to the technical field of boiler energy saving and environmental protection, and in particular relates to a split-assembled natural gas-fired boiler. Background technique [0002] For a long time, my country has been using coal as the main energy source, and coal-fired boilers have been used extensively, resulting in soot-type air pollution, especially the smog that has occurred in many places in recent years, which has further promoted the transformation of my country's energy policy and energy structure as soon as possible. As a clean fuel, natural gas has become an important development energy for the country to change air pollution. Boilers, as large energy consumers, actively respond to national policies, and promptly carry out "coal-to-gas" boiler fuel, reduce coal consumption, and increase the proportion of natural gas boilers. With the in-depth advancement of the "coal to gas" policy, natural gas boilers are also gradually...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention provides a split-assembled natural gas fired boiler with on-site assembly, convenient transportation, large boiler tonnage, reliable load variable performance, and more energy saving and environmental protection.

Images