CN2295954Y - Enhanced combustion secondary airing water boiler at normal pressure - Google Patents

Abstract

The utility model relates to an atmospheric hot water boiler. The utility model intensively combusts the secondary air. The utility model is composed of a boiler shell, a boiler container, a stringing water pipe, a boiler hearth, a fire grate, a smoke chamber, a chimney, a water inlet pipe and a water outlet pipe. The utility model is characterized in that the lower part of the fire grate is provided with a primary air pipe; the upper part of the fire grate is provided with a secondary air pipe; an upper pipe plate and a lower pipe plate are connected between the smoke chamber and the boiler container; a plurality of vertical fire pipes are arranged between the upper pipe plate and the lower pipe plate. The utility model has the advantages of high heat efficiency, energy saving, little smoke dust exhaust, little pollution, convenient operation, wide fuel adaptability, and low manufacture cost, and the utility model can combust other inferior fuels of mixed coal, raw coal, briquette coal, etc.

Description

Overheavy firing secondary wind normal-pressure hot-water boiler

The utility model relates to a kind of overheavy firing secondary wind atmospheric hot-water boiler for domestic.

Present widely used normal-pressure hot-water boiler mostly is the double-layer inverse burning formula, this kind boiler is extremely inconvenient owing to instead burning in the actual motion operation, operating technology is difficult to grasp, be difficult for ignition, most of users will instead burn operation and become lower floor's fire grate and just burning operation, thereby cause the overproof discharging of flue dust, and it is higher to consume energy, and the thermal efficiency reduces.Because the double-layer inverse burning boiler adopts gravity-flow ventilation, fuel is necessary for high-quality lump coal, the fuel cost height, and can not use mixed coal, raw coal, moulded coal etc. and other inferior fuel.

The purpose of this utility model is that a kind of thermal efficiency height will be provided, energy savings, and soot emissions are few, pollute for a short time, and easy to operate, and fuel tolerance is wide, cheap hot-water boiler.

The technical solution of the utility model is: this boiler comprises shell (12), and the cleanout door (3) of shell (12) bottom one side, opposite side have into water base (22), blowdown base (2); At the top combuster (7) of cleanout door (3), bottom, combustion chamber (7) is fire grate (4), and a flue (11) is arranged at top, combustion chamber, and many strings of several rows water pipe (9), (10) are arranged in the flue (11); In the upper end of shell (12) smoke-box (18) is arranged, connect chimney on the smoke-box (18) and take over (20), ash removing opening (15) is arranged on the smoke-box (18), shell (12) is gone up also has firing door (8), boiling water base (24), its characteristics are to be provided with an airduct (4) in the below of fire grate (5), the top of fire grate (5) is provided with secondary air channel (6) in combustion chamber (7), between smoke-box (18) and flue (11), be connected with a upper perforated plate (18) and lower perforated plate (13), some vertical fire tubes (14) are housed between upper perforated plate and lower perforated plate.

Characteristics of the present utility model are that a vertical brace (30) is arranged in described fire tube (14), on the two sides of vertical brace (30) some groups of asymmetric smoke elimination sheets (17) are housed.

Characteristics of the present utility model are that a described airduct (4) and secondary air channel (6) are the annular pipeline, have several little wind holes on it, and airduct and secondary air channel interconnect through a pipeline, are connected to a blast pipe (1) on an airduct (4).

Advantage of the present utility model and effect are: owing to adopt the overheavy firing of a secondary wind, all burning is most to make the not most flue dust of primary combustion and other incendivity thing under the effect of secondary air channel, owing to adopt the extreme misery pipe jointing, enlarge heating surface area, the smoke elimination sheet makes flue dust further reduce, so have thermal efficiency height, soot emissions greatly reduce.This boiler is easy to operate in addition simultaneously, can adapt to various coal types, as advantages such as fuel such as moulded coal, mixed coal, raw coal.

Fig. 1 is the utility model structural representation

Fig. 2 is outline drawing of the present utility model (left view of Fig. 1).

Fig. 3 is a secondary air channel structure chart.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is the smoke consuming apparatus structure chart.

Fig. 6 is the left view of Fig. 5.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, from water inlet base (22) water is injected in the boiler, just be full of water around burner hearth and the fire tube (14), also be full of water around the flue and in string water pipe (9), (10), from firing door (8) coal to fire grate (5), ignition, blast air from blast pipe (1), under the effect of an airduct (4) and secondary air channel (6), fire coal can fully burn, be that secondary air channel (6) blows afloat fully burning in burner hearth with the unburned thing, so existing herein smoke abatement and dust control effect.Flue gas rises through the outside of string water pipe (9), (10), rise again after entering smoke-box (18) behind the fire tube (14), discharge by chimney (20) again, when flue gas process fire tube (14), smoke elimination sheet (17) in the fire tube (14) is the reducing smoke velocity of discharge and improve the thermal efficiency on the one hand, eliminates smoke on the other hand and removes dust discharge and reduce pollution.Simultaneously, the water in the boiler is heated.Can take out hot water and boiling water from hot water base (27) and boiling water base (24).

Among Fig. 1,2 are the blowdown base, and 16 is staircase.

Among Fig. 2,29 steam whistles, 28 big vapour communicating pipes, 27 hot water bases, 26 thermometers, 25 water-level gauges, 24 boiling water bases, 23 hand holes, 21 furnace bottom circles.

Claims (3)

1, a kind of overheavy firing secondary wind normal-pressure hot-water boiler has shell (12), one side has cleanout door (3) in shell (12) bottom, and opposite side has into water base (22), blowdown base (2); It is that a flue (11) is arranged at fire grate (4), top, combustion chamber that one combustion chamber (7), bottom, combustion chamber (7) are arranged on the top of cleanout door (3), and many strings of several rows water pipe (9), (10) are arranged in the flue (11); In the upper end of shell (12) smoke-box (18) is arranged, smoke-box (18) is gone up the termination chimney and is taken over (20), ash removing opening (15) is arranged on the smoke-box (18), shell (12) is gone up also has firing door (8), boiling water base (24), it is characterized in that being provided with an airduct (4) in the below of fire grate (5), the top of fire grate (5) is provided with secondary air channel (6) in combustion chamber (7), between smoke-box (18) and flue (11), be connected with a upper perforated plate (18) and lower perforated plate (13), some vertical fire tubes (14) are housed between upper perforated plate and lower perforated plate.

2, a kind of overheavy firing secondary wind normal-pressure hot-water boiler as claimed in claim 1 is characterized in that a vertical brace (30) is arranged in described fire tube (14), on the two sides of vertical brace (30) some groups of asymmetric smoke elimination sheets (17) are housed.

3, a kind of overheavy firing secondary wind normal-pressure hot-water boiler as claimed in claim 1, it is characterized in that a described airduct (4) and secondary air channel (6) are the annular pipeline, have several little wind holes on it, airduct and secondary air channel interconnect through a pipeline, are connected to a blast pipe (1) on an airduct (4).

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