CN2682332Y

CN2682332Y - Coal-burning boiler

Info

Publication number: CN2682332Y
Application number: CN 200420030880
Authority: CN
Inventors: 荀鹏慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-23
Filing date: 2004-03-23
Publication date: 2005-03-02
Anticipated expiration: 2014-03-23

Abstract

Disclosed is a coal-burning boiler, comprising a boiler body with a water jacket and a smoke exhaust channel provided at the upper part of the boiler body. The utility is characterized in that an upright baffle is provided in a hearth; a smoke opening is left at the lower end of the baffle; a cover is installed on a coal opening of the hearth; an air channel is provided at the periphery of the hearth; the lower part of the air channel is communicated with an air inlet; an upper end at one side of the air channel is communicated with the hearth, and the upper end of the other side of the air channel is communicated with the smoke exhaust channel of the boiler. Provided with the upright baffle in the hearth and an upper cover on the coal opening, and thus coal smoke produced in the process of heat the coal of the pre-heat chamber must be exhausted from the lower part through a burning area; in the process, the carbon monoxide sufficiently burns; even stop firing, the smoke is not still escaped; the air pollution because of boiler exhaust emissions and coal gas poison property are reduced. In addition, the smoke exhaust channel prolonged, heat energy is sufficiently used before being exhausted; the boiler heat efficiency is improved.

Description

A kind of coal-burning boiler

Technical field

The utility model relates to a kind of boiler, is a kind of coal-burning boiler specifically, and it can be used in hot-water boiler, heating of house etc.

Background technology

Small-sized coal-burning boiler is at the top of burner hearth coal mostly now, by the bottom air-supply of fire grate, by the smokejack smoke evacuation of upper of furnace body.Coal is burning from the bottom to top, the upper strata is a preliminary heating zone, and exhaust opening exactly also is located at the top of burner hearth, this just makes the coal-burning boiler of this structure have a following shortcoming than evitable: 1, the preheating chamber of coal directly communicates with smokejack in the body of heater, so that the coal smoke that coal in the warm produces is being mingled with a large amount of dust directly discharges by smokejack, cause waste to the severe contamination and the fuel of air.2,,, the thermal efficiency of boiler is reduced so heat loss is bigger because the boiler exhaust gas road of this structure is shorter.

Summary of the invention

The purpose of this utility model provides a kind of novel coal-burning boiler, and it can overcome existing shortcoming in the prior art, improves the thermal efficiency, reduces the pollution to air.

The purpose of this utility model is achieved in that it comprises the body of heater that has water leg, upper of furnace body is provided with smokejack, it is characterized in that in burner hearth, being provided with vertical partition, exhaust opening is left in the lower end of dividing plate, on the coal filling hole of burner hearth lid is housed, the air channel is located at the periphery of burner hearth, and the bottom in air channel communicates with burner hearth by air inlet, the upper end in one crosswind road communicates with burner hearth, and the upper end in opposite side air channel communicates with the smokejack of body of heater.

The utility model has the advantages that: because the loam cake that vertical partition is installed in burner hearth and is arranged on coal filling hole, the coal smoke that coal in the preheating chamber is produced in heating process must be discharged by the bottom by the combustion zone, CO gas in the coal smoke is fully burned, even also not having cigarette when banking up a fire emerges, reduced the possibility of gas poisoning, simultaneously dust is played the effect of a filtration, reduced of the pollution of boiler emission thing air.In addition,, make the distance lengthening of smoke evacuation,, the thermal efficiency of boiler is improved so heat energy was fully utilized before discharging body of heater because smoke evacuation of the present utility model is from top to down, from right to left.

Description of drawings

Fig. 1 is the side structure profile of a kind of specific embodiment of the utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the side sectional view of another embodiment of the present utility model.

Fig. 4 is an A-A cutaway view among Fig. 3.

The specific embodiment

See figures.1.and.2, the 1st, have the body of heater of water leg, a side of body of heater is a smokejack 2, is provided with the water pipe 3 of recirculated water in the smokejack, in the bottom of smokejack pumping board 4 is installed, and can extract out with eliminating to accumulate at interior flue dust.Be located to be equipped with on the coal filling hole of upper furnace and cover 5,6 is water legs that roof of the furnace plays buffer action among the figure, opposite side is provided with the vertical partition 7 that has water leg equally, vertical partition 7 is divided into two parts with the combustion chamber, the lower end of vertical partition discharges the coal smoke in the preheating chamber of top as exhaust opening thus.Can see by Fig. 2, fire grate 8 is octagons, the air channel is located at its four jiaos, dividing plate 9 or dividing plate 10 are housed between air channel and the burner hearth, the bottom in air channel communicates with burner hearth by the air inlet on the dividing plate 11, as shown in Figure 1, leaves the slit between dividing plate 9 upper ends and the roof of the furnace, the top, two air channels in left side is directly communicated with burner hearth, and two passages shown in the right side communicate among Fig. 1 with the smokejack of upper of furnace body on the top of dividing plate 10.12 is air outlets among the figure, and what present embodiment adopted is natural wind.The 13rd, the burner hearth opening is equipped with door, is used for the noncombustibles discharge with the bulk of coal, and the 14th, the bell of upper of furnace body coal filling hole.

By Fig. 3, shown in Figure 4, it is the application example on vertical type water heater boiler.Coal filling hole 20 is located at the side, middle vertical partition 25 is separated into two parts with the combustion chamber, two jiaos at burner hearth are provided with air channel 21, opposite side is provided with air channel 22, and is the same with top embodiment, and

air channel

21 and 22 bottom communicate with burner hearth 23 by air inlet 26, the upper end in air channel 21 directly communicates with burner hearth 23, and the upper end in air channel 22 communicates with smokejack 24, in order further to reduce the discharge rate of dust, is provided with baffle plate 25 in smokejack 24.

Claims

1, a kind of coal-burning boiler, it comprises the body of heater that has water leg, upper of furnace body is provided with smokejack, it is characterized in that being provided with in burner hearth vertical partition, exhaust opening is left in the lower end of dividing plate, on the coal filling hole of burner hearth lid is housed, the air channel is located at the periphery of burner hearth, the bottom in air channel communicates with burner hearth by air inlet, and the upper end in a crosswind road communicates with burner hearth, and the upper end in opposite side air channel communicates with the smokejack of body of heater.

2,, it is characterized in that being equipped with in the smokejack baffle plate according to the said coal-burning boiler of claim 1.