Reinforced heat transfer vertical pipe type water-cooling gas steam generator

Abstract

The invention discloses a reinforced heat transfer vertical pipe type water-cooling gas steam generator which comprises an upper collecting box and a lower collecting box. A tubular membrane water-cooled wall is arranged between the upper collecting box and the lower collecting box; a fuel gas inlet and an exhaust gas outlet are formed in the tubular membrane water-cooled wall; the fuel gas inletis connected with a gas inlet bin; a water-cooled plane combustor is arranged in the gas inlet bin and comprises a water-cooled fire grate tube bundle which forms a combustion furnace cavity togetherwith the tubular membrane water-cooled wall in a surrounding manner; a reinforced convection heat exchange tube bundle furnace is arranged in the combustion furnace cavity; a heat exchange chamber isformed by the space occupied by the reinforced convection heat exchange tube bundle; a combustion chamber is formed by the space between the reinforced convection heat exchange tube bundle furnace andthe water-cooled fire grate tube bundle; the exhaust gas outlet is connected with a tail normal-pressure economizer; the tail normal-pressure economizer is connected with an exhaust gas collecting box; and a water inlet of the lower collecting box is connected with a water outlet of the tail normal-pressure economizer through a pipeline and a water pump. The reinforced heat transfer vertical pipetype water-cooling gas steam generator provided by the invention is high in heat exchange efficiency, low in combustion temperature and exhaust gas exhaust temperature, capable of achieving low-costand low-nitrogen emission and long in service life.

Description

Technical field [0001] The present invention relates to a steam generator, and more particularly to a strengthening heat transfer vertical water-cooled gas steam generator. Background technique [0002] At present, the gas steam generators on the market use the combustion machine and the body, the body is produced by the manufacturer, and the burner is available. The body structure of the steam generator generally uses the structural form of a coil, a serpenti or a vertical tobacco pipe, which is the flame of the boiler, or a flame of the boiler, or a surface burner or a surface burner or a surface bond. The serpenti-shaped tube or the tobacco pipe is heated, so that the water in contact with the water is formed by steam; the water in the coil or serpentine is constantly flowing from the lower low temperature zone to the upper high temperature zone, and finally the steam is ejected. This heating manner causes water in the coil or serpentin to become steam in the tube or serpentin...

AI Technical Summary

Problems solved by technology

At present, all kinds of steam generators on the market use gun-type diffusion burners (non-low-nitrogen combustion) or FPB type fully premixed metal surface burners to increase the combustion surface to achieve low nitrogen emissions, but FGR nitrogen reduction is used The method has many insurmountable shortcomings such as high price, reducing boiler energy efficiency by about 3-5%; FPB surface metal burner uses a metal mesh burning surface on the surface, which is easy to block, low combustion efficiency, burnout and tempering, etc. and be plagued by people

At the same time, the water in the boiler will turn into steam at the end of the coil or serpentine tube, and the tube will be dry-burned, and the dry-burning temperature is high, easy to deform, burn out, and scale

Images