CN201028552Y - Vertical double-barrel smokeless boiler - Google Patents

Abstract

The utility model discloses a vertical double boiler drum smokeless boiler. An upper boiler drum and a lower boiler drum are arranged eccentrically, and a smoke eliminating and dust setting chamber is arranged below the upper boiler drum; the smoke eliminating and dust setting chamber is communicated with the hearth in the lower boiler drum, and a convection bank between the upper and the lower boiler drums is arranged in the smoke eliminating and dust setting chamber. The beneficial effect of the utility model is that: the utility model has sufficient combustion of the fuel, low thickness of smoke and dust discharge, sufficient heat exchange and improvement of heat efficiency.

Description

Vertical pair of drum less boiler

Technical field:

The utility model relates to boiler.More particularly, be a kind of civilian vertical hand coal-fired boiler.

Background technology:

In the prior art, though civilian hand-fired boiler is of a great variety, structure is different, the version ubiquity of single drum problems such as the thermal efficiency is low, incomplete combustion, row's black smoke.Make civilian hand-fired boiler in use be subjected to the restriction of problems such as environmental issue, the thermal efficiency all the time.

Technical problem to be solved in the utility model is to avoid above-mentioned weak point of the prior art, and vertical pair of drum less boiler of a kind of efficient height, the discharging of no black smoke is provided.

The technical scheme that the utility model technical solution problem is adopted is:

The utility model adopts two barrel structures, comprise upper drum and lower drum, described upper drum and lower drum are eccentric to be provided with, and the smoke elimination expansion chamber is set below upper drum, burner hearth in described smoke elimination expansion chamber and the lower drum connects, and the convection bank between upper and lower drum is positioned at the smoke elimination expansion chamber.

Compared with the prior art, the eccentric two barrel structures that are provided with of the utility model cooperate the smoke elimination expansion chambers, make fuel fully burning in burner hearth, fire smoke gases by the smoke elimination expansion chamber after again through the upper drum discharge, its smoke dust discharge concentration reduces greatly, compliance with environmental protection requirements.Simultaneously, the reasonability of two barrel structure settings makes heat exchange more abundant, has improved the thermal efficiency greatly.The utility model compact conformation, easy to maintenance, simple to operate, safe and reliable.

The drawing explanation:

Accompanying drawing is the utility model structural representation.

The specific embodiment:

Referring to accompanying drawing, the utility model adopts two barrel structures, comprise upper drum 10 and lower drum 12, upper drum 10 is set for the eccentric with lower drum 12, smoke elimination expansion chamber 3 is set below upper drum 10, burner hearth in smoke elimination expansion chamber 3 and the lower drum 12 connects, and the convection bank 11 between upper and lower drum is positioned at smoke elimination expansion chamber 3.Each convection bank employing inclination angle is 15 ° a curved water pipe, and stagger arrangement is arranged mutually, and the one end is connected with the shell of lower drum 12, and the other end is connected with flat " U " type tube sheet of upper drum 10 bottoms.In addition, be connected, make upper drum 10 and lower drum 12 constitute a complete water circulation system at a side of lower drum 12 tops flat " U " type circle and upper drum 10 curved water pipe 16 with symmetric arrangement.Horizontal water tube 17 is set, to strengthen heat-exchange capacity in the inner bag of upper drum 10.

Shown in the figure, present embodiment adopts double-layer grate back to burn burner hearth, and upper furnace 1 and lower hearth 2 are arranged, and smoke elimination expansion chamber 3 is positioned at burner hearth one side.Be provided with the curved surface refractory arch 4 in band taper wind hole on the top of upper furnace 1, the curved surface center of circle of refractory arch 4 is positioned on the coal-fired reduction aspect, and upper furnace 1 adopts water-cooled grate 9.The interior week of lower hearth 2 is fire-resistant wall with refractory lining, refracto 5, and lower hearth 2 connects with smoke elimination expansion chamber 3 by the outlet flue 6 that is positioned on its sidewall.Outlet flue 6 is provided with the whirlwind tube 7 that stretches in the lower hearth 2, and lower hearth 2 adopts casting furnace grate 14.In smoke elimination expansion chamber 3 inside, be positioned at the top of outlet flue 6, be provided with the fire-resistant chimney arch 8 of secondary air channel.

Burn for naked light is counter in the burner hearth, fuel is added by upper coal feeding door 13, burning downwards on water-cooled grate 9.Under the effect of gravity-flow ventilation or axial flow blower, air is blown into burner hearth by the taper wind hole on the curved surface refractory arch 4, make the air that enters burner hearth even as much as possible, flame flow passes water-cooled grate thereupon and blows under evenly, down the flame that blows with by the further mixed combustion of unburnt flue gas of blowing on the casting furnace grate 14, in whirlwind tube 7, form cyclone, burn away, make the combustible burning more abundant.

In the middle of smoke elimination expansion chamber 3, air enters the smoke elimination expansion chamber by the secondary air channel of fire-resistant chimney arch 8 ends, and is mixed by the up flue gas of fire-resistant chimney arch 8 bafflings, is that it continues after-flame and replenishes air.Flue gas washes away convection bank 11 behind fire-resistant chimney arch 8 bafflings, and enters the inner bag of upper drum 10 thus, therein with wall of inner container, horizontal water tube, interior end socket and the final heat exchange of impact tube after, enter atmosphere through chimney 15.Reduce the concentration of emission of flue dust thus greatly, compliance with environmental protection requirements, and obtain the higher thermal efficiency.

Claims (3)

1. vertical pair of drum less boiler, it is characterized in that adopting two barrel structures, comprise upper drum (10) and lower drum (12), described upper drum (10) and lower drum (12) are eccentric to be provided with, in the below of upper drum (10) smoke elimination expansion chamber (3) is set, burner hearth in described smoke elimination expansion chamber (3) and the lower drum (12) connects, and the convection bank between upper and lower drum (11) is positioned at smoke elimination expansion chamber (3).

2. vertical pair of drum less boiler according to claim 1, its feature adopts double-layer grate back to burn burner hearth in described lower drum, comprise upper furnace (1) and lower hearth (2), be provided with the curved surface refractory arch (4) in band taper wind hole on the top of described upper furnace (1), the curved surface center of circle of refractory arch (4) is positioned on the coal-fired reduction aspect; The interior week of described lower hearth (2) is fire-resistant wall with refractory lining, refracto (5), and lower hearth (2) connects with smoke elimination expansion chamber (3) by the outlet flue (6) that is positioned on its sidewall, locates to be provided with the whirlwind tube (7) that stretches in the lower hearth at described outlet flue (6); In the smoke elimination expansion chamber (3), be positioned at the top of outlet flue (6), be provided with the fire-resistant chimney arch (8) of secondary air channel.

3. vertical pair of drum less boiler according to claim 2 is characterized in that adopting water-cooled grate (9) in described upper furnace (1).

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