CN2262648Y

CN2262648Y - Boiler

Info

Publication number: CN2262648Y
Application number: CN 96231342
Authority: CN
Inventors: 黄顺洪
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-16
Filing date: 1996-02-16
Publication date: 1997-09-17
Anticipated expiration: 2006-02-16

Abstract

The utility model relates to a coal fired boiler which is composed of a coal fired combustion chamber and a water placing container. The coal fired combustion chamber is a double-layer structure which is provided with an upper combustion chamber (3) and a lower combustion chamber (2). Each combustion chamber is provided with a fire grate. The two combustion chambers are in reverse combustion structures for secondary combustion. High-temperature gas of the upper combustion chamber (3) downward flows into the lower combustion chamber for the secondary combustion and the heating. The water placing container is composed of a boiler barrel (15), a water jacket (9) with a short clamp and a water jacket (10) with a long clamp whose water ways are mutually communicated. The water in the water placing container is heated by a heat-conductive straight pipe (4). One part of the heat-conductive straight pipe (4) is arranged on the exterior of the water placing container, and the other part of the heat-conductive straight pipe (4) is arranged in the water placing container. The utility model has the advantages of energy saving, high efficiency, convenient repair, etc.

Description

Boiler

The utility model relates to a kind of boiler.

Traditional coal-burning boiler all is " shell " type, the stove that is filled with water by fired coal combustion after in the heating furnace water and produce boiling water or HTHP vapour, this kind boiler consumption coal is many, efficient is low.

The utility model task is to propose the reverse burning of a kind of secondary, and the mode of heating of water is heated to be main energy-conservation, the New-type boiler of economizing coal by heat pipe.

The technical solution of the utility model is that boiler is made of fired coal combustion chamber and water container, the fired coal combustion chamber is a double-decker, combustion chamber, upper strata and lower floor combustion chamber are arranged, all there is fire grate each combustion chamber, carry out second-time burning, two combustion chambers are reverse burning structures, on, the high-temperature fuel gas passage is arranged between the lower floor combustion chamber, the combustion gas of combustion chamber, upper strata is flowed downward, carry out the second-time burning heating to the lower floor combustion chamber, water container has drum, short water holding jacket and three compositions of long water holding jacket, drum, short water holding jacket, long water holding jacket three is the water route connectivity structure, water in the water container is mainly heated by the heat conduction straight tube, the heat conduction straight tube is partly in the outside of water container, and another part is positioned at the inside of water container.

Technical solutions of the utility model have been finished the invention task.

Fig. 1 is embodiment of the present utility model.

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

Be described in detail the utility model below in conjunction with accompanying drawing.

The utility model boiler is a kind of energy-conservation, boiler efficiently, the burning of boiler is second-time burning, reverse burning, boiler is made of fired coal combustion chamber and water container, the combustion chamber is a double-decker, combustion chamber, upper strata (3) and lower floor combustion chamber (2) are arranged, there is fire grate each combustion chamber, two combustion chambers are reverse burning structures, carry out second-time burning, the high-temperature fuel gas of combustion chamber, upper strata, flow downward, enter the lower floor combustion chamber and carry out the second-time burning heating, water container has drum (15), the short long water holding jacket of water holding jacket (9) (10) three forms, and the three water route communicates, water in the water container, mainly by heat conduction straight tube (4) heating, heat conduction straight tube (4) part is in the water container outside, and part is in water container inside.

The fire grate of combustion chamber, upper strata is the plate-tube type fire grate that is made of knuckle type heat pipe (20), and gapped between the pipe of fire grate, knuckle partly is positioned at short water holding jacket (9) inside, directly the water in the short water holding jacket of heating (9).

Heat pipe (20) (4) is made by good heat conducting material, the heat transfer efficiency height.

Drum (15) is the right cylindrical tube of one two end sealing, is positioned at the top of boiler, and short water holding jacket (9) is positioned at below, drum middle part, makes the water of the two logical by short tube (5).

Long water holding jacket (10) is positioned at the boiler rear portion, by the water pipe (22) as rigid strutting piece, makes long water holding jacket (10) and drum (15) constitute the water route and is communicated with.

Two sides have downcomer (17) about the outside of boiler, and downcomer (17) also is the rigid strutting piece as boiler, so this boiler does not have special-purpose rigid structural support part, water level meter (16) are arranged on the downcomer.

The fire grate of lower combustion chamber (2) is a casting furnace grate.The coal feed point of combustion chamber, upper strata (31) is an air inlet, during burning be one and often drive blast orifice, wind enters the combustion chamber, upper strata from coal feed point (31), hot-fluid flows to the lower floor combustion chamber, carry out second-time burning in lower floor, the water in hot-fluid heating heat pipe (4) the long water holding jacket of heating (10), hot water enters drum (15), waste heat heats the water of the heat pipe heating drum of drum (15) again, and waste gas is discharged by smoke evacuation interface (8) then.

Around boiler flame retardant coating (7) and heat-insulation layer (6) are arranged, it is the water pipes that enter drum that pipe joint (13) and (14) are arranged on the drum.

Normally closed when the coal feed point (21) of lower floor combustion chamber (2) burns, below, lower floor combustion chamber is object-catching chamber (1), and the combustion slag takes out from slag notch (11).

There is water inlet (23) at the boiler rear portion, and the shell (18) of object-catching chamber (1) constitutes base.

The utility model and conventional artillery formula boiler have been compared following advantage:

Improve security of operation, simple and reasonable, be convenient to repair and the boiler cleaning heat conduction The efficient height.

Claims

1, a kind of boiler, constitute by fired coal combustion chamber and water container, it is characterized in that the fired coal combustion chamber is a double-decker, combustion chamber, upper strata (3) and lower floor combustion chamber (2) are arranged, all there is fire grate each combustion chamber, two combustion chambers are reverse burning structures, on, the high-temperature fuel gas passage is arranged between the lower floor combustion chamber, the combustion gas of combustion chamber, upper strata is flowed downward enter the lower floor combustion chamber, water container has drum (15) and short water holding jacket (9) and (10) three compositions of long water holding jacket, drum (15), short water holding jacket (9), long water holding jacket (10) three is the water route connectivity structure, and heat conduction straight tube (4) part is in the water container outside, and another part is positioned at water container inside.

2, by the described boiler of claim 1, the fire grate that it is characterized in that the combustion chamber, upper strata is to constitute the plate-tube type fire grate by knuckle type heat pipe (20), and gapped between the pipe of fire grate, knuckle partly is positioned at short water holding jacket (9).

3, by the described boiler of claim 1, it is characterized in that drum (15) is the right cylindrical tube of two ends sealing, be positioned at upper boiler, short water holding jacket (9) is positioned at below, drum (15) middle part, is communicated with by short tube (5).

4, by the described boiler of claim 1, it is characterized in that long water holding jacket (10) is positioned at the boiler rear portion, water pipe (22) is communicated with long water holding jacket (10) and drum (15).

5, by the described boiler of claim 1, it is characterized in that downcomer (17) is arranged about the boiler outside, downcomer (17) is the rigid strutting piece of boiler.

6,, it is characterized in that fire grate (19) casting furnace grate of lower combustion chamber (2) by the described boiler of claim 1.

7, by the described boiler of claim 1, it is characterized in that the coal feed point (31) of combustion chamber, upper strata is an air inlet, during burning, be one and often drive blast orifice.