CN2175870Y

CN2175870Y - Vertical vortex boiler

Info

Publication number: CN2175870Y
Application number: CN 93231343
Authority: CN
Inventors: 冯多祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-12
Filing date: 1993-07-12
Publication date: 1994-08-31
Anticipated expiration: 2003-07-12

Abstract

The utility model relates to a vertical vortex boiler which is mainly composed of a boiler shell, a boiler bladder, a fire grate, a cupola tube, a convention tube bundle and an ash chamber. The utility model is a vertical boiler with a single layer of the fire grate. A coal feeding door is arranged above the fire grate, and an arc-shaped radiating arch is arranged above the coal feeding door in the boiler bladder. An arc-shaped refracting arch is arranged on the rear wall of the boiler bag and above the fire grate, and a secondary air tube is arranged on the arc-shaped refracting arch. The convention tube bundle is transversely arranged on the upper part of the boiler bag, and the lower end surface of a lower convection tube is fixedly provided with a reflecting deflector. The temperature in a boiler chamber is improved conspicuously, combustion conditions are improved, heat exchanging process is improved, and the capacity of smoke elimination and dust removal is enhanced. The utility model has the advantages of convenient operation and strong adaptability for coal quality.

Description

Vertical vortex boiler

A kind of vertical eddy current boiler of the utility model relates to vertical boiler, and particularly a kind of vertical individual layer furnace grate mainly is made up of shell, flue, fire grate, impact tube, convection bank and grey chamber.

Existing hand-stoked vertical boiler for reducing the pollution of flue dust to atmospheric environment, adopts the anti-sintering structure of water cooled double-layered fire grate.In actual use, because variation or fireman's lack of skill of ature of coal often be difficult to operate by design discipline, cause that most boiler with two-layer fire grates are actual to have become the positive burning boiler of individual layer fire grate, combustion efficiency is poor, and flue dust is seriously polluted to atmospheric environment.

The purpose of this utility model overcomes the deficiencies in the prior art exactly; a kind of structure of vertical eddy current boiler is disclosed; have characteristics simple in structure, easy to operate, strong, that combustion efficiency good and the smoke abatement and dust control ability is strong, be fit to energy savings, protection environment requirement ature of coal adaptability.

A kind of vertical eddy current boiler of the utility model, mainly by shell, flue, fire grate, impact tube, convection bank and grey chamber are formed, flue is sleeved in the shell, the ash chamber is in the flue lower end, fire grate is above grey chamber, impact tube is installed on the flue upper end, firing door is arranged on fire grate top shell and the flue antetheca, the technical scheme that realizes the utility model purpose is: be set with an arc radiation arch on flue antetheca inwall above the firing door, shell and flue antetheca are provided with a peep hole above the arc radiation arch, convection bank is horizontal on flue top, a reflection deflector fixedly is housed on convection bank lower floor convection tube lower surface, flue rear wall inwall is provided with an arc refraction arch above the fire grate, and arc refraction arch is provided with the secondary air channel that is communicated with burner hearth.

When using the vertical eddy current boiler of the utility model, coal burns on fire grate, the coal-fired heat part that discharges is radiated on the lower surface arcwall face of arc radiation arch by thermal-radiating mode, fire box temperature is raise, new interpolation coal at high temperature can be heated drying very soon and separate out fuel gas and burning, temperature significantly improves than prior art fire box temperature in the burner hearth, make coal-fired fully burning in burner hearth, fuel gas keeps in the higher temperature in the flow burning process, form vortex disturbance, make the abundant after-flame of fuel gas, high-temperature flue gas stream is before the secondary furnace that enters under the refraction of burner hearth back zone arc refraction arch above the arc radiation arch, the sufficient air of being supplied with by secondary air channel satisfies the required oxygen of the abundant after-flame of flue gas, the also favourable disturbance that adds air blast simultaneously, the rising thermal current is subjected to reflecting stopping of deflector in the secondary furnace, water conservancy diversion, slow down the rate of climb on the one hand, prolong burning time, make the at high temperature further after-flame of unburned gas remaining in the thermal current, not flammable grit is separated on the upper surface that drops on arc radiation arch, play the dedusting effect, thermal current can be risen by convection bank around flue more equably, improve the heat exchanger effectiveness of convection bank, flue gas is discharged from impact tube at last.In sum, the structure of the vertical eddy current boiler of the utility model is comparatively simple, significantly improved stove internal combustion temperature, prolonged the smoke combustion time, burning condition is good, has improved heat exchanging process, strengthened the smoke abatement and dust control ability, easy and simple to handle, strong to the adaptability of ature of coal, realized the purpose of this utility model preferably.

Below in conjunction with accompanying drawing vertical eddy current boiler of the utility model and embodiment are described in further detail.

Accompanying drawing is the structure cross-sectional schematic of an embodiment of the vertical eddy current boiler of the utility model.

An embodiment as the vertical eddy current boiler of the utility model, as shown in drawings, the vertical eddy current boiler of the utility model is mainly by shell 6, flue 9, fire grate 2, impact tube 10, convection bank 8 and grey chamber 18 are formed, flue 9 is sleeved in the shell 6, ash chamber 18 is in flue 9 lower ends, fire grate 2 is above grey chamber 18, impact tube 10 is installed on flue 9 upper ends, firing door 3 is arranged on fire grate 2 top shells 6 and flue 9 antethecas, can add coal to fire grate 2 from firing door 3, on the 9 antetheca inwalls of flue above the firing door 3, be set with an arc radiation arch 4, the low arc in high back before this arc radiation arch 4 is, form burner hearth 16 in flue 9 and between the fire grate 2, utilize the coal-fired heat of arc radiation, can significantly improve temperature in the burner hearth 16, thereby improved burning condition, shell 6 and flue 9 antethecas are provided with a peep hole 5 above the arc radiation arch 4, can observe stove internal combustion situation by this peep hole 5, convection bank 8 is horizontal on flue 9 tops, be certain inclination angle with flue 9 axis, the thermal convection current of water in the favourable convection bank 8, a reflection deflector 7 fixedly is housed on convection bank 8 lower floor convection tube lower surfaces, form secondary furnace 14 between flue 9 arc radiation arch 4 and the reflection deflector 7, flue 9 rear wall inwalls are provided with an arc refraction arch 13 above the fire grate 2, arc refraction arch 13 is provided with the secondary air channel 15 that is communicated with burner hearth 16, fuel gas in the burner hearth 16 keeps higher temperature under the effect of arc refraction arch 13, form vortex disturbance simultaneously, secondary air channel 15 can provide sufficient air-breathing, one or more secondary air channel 15 is set as required, enter the thermal current of secondary furnace 14 through arc refraction arch 13, reflected stopping and water conservancy diversion of deflector 7, not flammable grit is fallen the arc radiation and is encircleed 4 upper surfaces, the fireman can utilize instrument from peep hole 5 grit to be pushed, through fire grate 2 ash entrance chamber 18 that falls, discharge from ash door 1 at last, enter the water of flue 9 through shell 6 lower end water intaking valves 17, in burner hearth 16 districts and secondary furnace 14 districts by radiation heating, further heated along the thermal current that flue 9 rises all around through convection bank 8 through reflection deflector 7 water conservancy diversion, form hot water or steam, from water outlet (vapour) valve 11 outputs that are arranged on shell 6 tops, thermal current discharges from chimney 2 after working medium (water) heat exchange in impact tube 10 and flue 9 at last in the stove, the flue gas heat loss is less, and smoke content is also less.

Claims

1, a kind of vertical eddy current boiler, mainly by shell, flue, fire grate, impact tube, convection bank and grey chamber are formed, flue (9) is sleeved in the shell (6), ash chamber (18) is in flue (9) lower end, fire grate (2) is in grey chamber (18) top, impact tube (10) is installed on flue (9) upper end, firing door (3) is arranged on fire grate (2) top shell (6) and flue (9) antetheca, it is characterized in that on flue (9) the antetheca inwall of firing door (3) top, being set with an arc radiation arch (4), arc radiation arch (4) top shell (6) and flue (9) antetheca are provided with a peep hole (5), convection bank (8) is horizontal on flue (9) top, a reflection deflector (7) fixedly is housed on convection bank (8) lower floor convection tube lower surface, fire grate (2) top flue (9) rear wall inwall is provided with an arc refraction arch (13), and arc refraction arch (13) is provided with the secondary air channel that is communicated with burner hearth (16).