CN2594645Y

CN2594645Y - Assembled sokeless boilers

Info

Publication number: CN2594645Y
Application number: CN 03201990
Authority: CN
Inventors: 严胡平
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-11
Filing date: 2003-01-11
Publication date: 2003-12-24
Anticipated expiration: 2013-01-11

Abstract

The utility model discloses an assembled sokeless boiler. Inner boiler cylinders are arranged in a boiler body; the bottom of the boiler body is provided with grate bars; a coal throwing port is arranged on the outer wall of the boiler body; the number of the inner boiler cylinders is at least one; a fire collecting arch and fire blocking arches are orderly arranged on the inner boiler cylinder wall; an inner boiler cylinder cavity between the fire collecting arch and the fire blocking arches forms an ash burning chamber; a water pipe grate is transversally arranged in the inner boiler cylinder cavity under the fire blocking arches; an inner boiler cylinder cavity between the water pipe grate and the fire blocking arches forms a dry distillation chamber; an inner boiler cylinder cavity between the water pipe grate and the grate bars forms a gasification burning chamber; the gasification burning chamber is mutually communicated with the ash burning chamber through a smoke fire pipe; the fire blocking arches of both sides and a secondary air pipe form the sealing connection; air holes are uniformly distributed on the pipe wall of the secondary air pipe which supply air through a blower, which faces the interior of the dry distillation chamber; the coal throwing port is communicated with the dry distillation chamber. The utility model can effectively solve the problem of black smoke caused by the insufficient burning of coal; heat utilization rate is improved; the heating energy loss is decreased; the using cost is decreased.

Description

The combined type less boiler

Technical field

The utility model belongs to the improvement of vertical fire coal boiler structure, particularly the combined type less boiler.

Background technology

Coal-burning boiler is the capital equipment that China's wide geographic area winter heating is used, and the vertical fire coal boiler is little with its occupation of land, small investment and being used widely.But the vertical fire coal boiler in use exists following problem to need to be resolved hurrily: 1, boiler in use, air is entered the coal burning that helps in the combustion chamber of furnace body to be placed on the fire bars by bottom of furnace body, this burning structure of boiler is extremely unreasonable, because stopping of coal, air can not enter smoothly in the combustion chamber of coal top and participate in burning, severe depletion of oxygen in the combustion chamber causes the insufficient and over-emitting black exhaust of coal burning; 2, traditional vertical boiler heat energy utilization rate is low, and thermal power is little.

Summary of the invention

The purpose of this utility model is to provide a kind of combined type less boiler, and it is insufficient and the problem of over-emitting black exhaust improves the heat energy utilization rate effectively to solve burning that the vertical fire coal boiler exists, and can also greatly reduce use cost.

The purpose of this utility model is achieved in that a kind of combined type less boiler, stove tube in being provided with in the body of heater, interior stove tube bottom is provided with fire bars, furnace body outer wall is provided with coal feeding hole, the number of interior stove tube is at least one, be disposed with the poly-fire arch and the retaining fire arch of the projecting inward and positioned opposite of inside stove tube on the inner furnace tube wall from top to bottom, form secondary furnace in the interior stove tube chamber between poly-fire arch and the retaining fire arch, be horizontally arranged with water pipe furnace grate in the interior stove tube chamber of retaining fire arch below, water pipe furnace grate is communicated with relative inner furnace tube wall, form the destructive distillation chamber in the interior stove tube chamber between water pipe furnace grate and the retaining fire arch, form gasification combustion chamber in water pipe furnace grate and the interior stove tube chamber between the fire bars of interior stove tube bottom, be interconnected by the pyrotechnics pipe that is positioned at the inner furnace tube wall outside between gasification combustion chamber and the secondary furnace, the retaining fire arch of both sides all is tightly connected with secondary air channel, by the uniform eye of wind that is provided with on the indoor tube wall of destructive distillation of the secondary air channel of air blast air-supply, coal feeding hole is connected with the destructive distillation chamber.

The utility model in use, coal is put on the indoor water pipe furnace grate of destructive distillation by coal feeding hole, it is indoor by air blast air to be sent into destructive distillation from the bottom of body of heater and secondary air channel respectively, coal is carried out destructive distillation, then that destructive distillation is good coke is disclosed into the gasification, and combustion that is positioned at below, destructive distillation chamber indoor, carry out gasification, and combustion, do not have the flue gas of complete after-flame to enter secondary furnace by the pyrotechnics pipe, the flame on both sides converges in a burning once more under the effect of poly-fire arch.Since have secondary air channel from coal top to canyon, make the indoor coal of destructive distillation in the sufficient environment of oxygen, to be able to abundant burning, reduce the generation of flue dust or black smoke.Poly-fire arch and retaining fire arch and pyrotechnics pipe are set make the passage of pyrotechnics become tortuous, both helped a large amount of heat energy that coal burning produces and fully absorbed, improve the heat energy utilization rate, reduce use cost by water, can also depositing dust, realize the purpose of smokeless emission.

Description of drawings

Fig. 1 looks cross-sectional view for master of the present utility model, and Fig. 2 is a side-looking cross-sectional view of the present utility model, and Fig. 3 is the A-A cross-sectional view among Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail, as Fig. 1, Fig. 2, shown in Figure 3, a kind of combined type less boiler, body of heater can be divided into separate upper and lower two parts, helping dismounting, transportation and to install, between upper furnace body 1 and the lower furnace body 3 for being tightly connected.Be provided with the water pipe heat-exchanger rig in the upper furnace body 1, be provided with stove tube 5 at least one in the lower furnace body 3,, just can more effectively improve the thermal capacity and the thermal power of boiler if be arranged side by side a plurality of interior stove tubes 5 accordingly.The bottom of interior stove tube 5 is provided with fire bars 11, be disposed with the poly-fire arch 4 and the retaining fire arch 15 of the projecting inward and positioned opposite of inside stove tube 5 on the inner furnace tube wall from top to bottom, poly-fire arch 4 and retaining fire arch 15 all are arc or oval shape, are provided with heat exchanger tube 2 in interior stove tube 5 chambeies of poly-fire arch 4 tops.

Form secondary furnace 14 in interior stove tube 5 chambeies between poly-fire arch 4 and the retaining fire arch 15, secondary furnace 14 walls are provided with the cleaning door 19 that is connected with furnace body outer wall.Be horizontally arranged with water pipe furnace grate 9 in interior stove tube 5 chambeies of retaining fire arch 15 belows, the inner furnace tube wall that water pipe furnace grate 9 will be faced mutually is communicated with, and water pipe furnace grate 9 can be arranged to a head height and the other end is low, helps landing the slit of coal between water pipe furnace grate 9.Form destructive distillation chamber 16 in interior stove tube 5 chambeies between water pipe furnace grate 9 and the retaining fire arch 15, form gasification combustion chamber 18 in water pipe furnace grate 9 and interior stove tube 5 chambeies between the fire bars 11 of interior stove tube 5 bottoms, gasification combustion chamber's 18 walls are provided with that furnace body outer wall is connected removes cinder notch 21.Be interconnected by the pyrotechnics pipe 8 that is positioned at the inner furnace tube wall outside between gasification combustion chamber 18 and the secondary furnace 14.The retaining of both sides fire arch 15 all is tightly connected with secondary air channel 7 formation, the uniform eye of wind that is provided with on the interior tube wall in destructive distillation chamber 16 of the secondary air channel 7 that links to each other with air blast 23.Can also between two retaining fire arches 15 protection arch 6 be set, the protection arch 6 between retaining fire arch 15 contacts with retaining fire arch 15 and inner furnace tube wall sealing, prevents that the pyrotechnics in the destructive distillation chamber 16 from directly entering in the secondary furnace 14 of retaining fire arch 15 tops.The below of protection arch 6 is provided with the secondary air channel 7 that links to each other with air blast 23, as shown in Figure 2, on secondary air channel 7 airduct 22 can also be set, so that wind-force is more concentrated.The coal feeding hole 20 that is provided with on the furnace body outer wall is connected with destructive distillation chamber 16, and coal drops in the destructive distillation chamber 16 from coal feeding hole 20.

Bottom of furnace body is provided with the uniform blast pipe of arranging in the shape of a spiral 13 that is provided with on the inwall of close fire bars 11 of 12, air compartments 12 of an air compartment, and the wind that blows out from blast pipe 13 can blow in the gasification combustion chamber 18 more concentrated and rotatably.An airduct 24 that links to each other with air blast 23 is connected with an air compartment 12.Can also secondary air channel 7 is communicated with secondary air chamber at the separate secondary air chamber of bottom of furnace body setting and air compartment 12, secondary air chamber be blown for it by air blast 23.

In order more to help entering the burning of the coke in the gasification combustion chamber 18, the uniform radiant wall 10 that is provided with on the internal perisporium of gasification combustion chamber 18 can make to keep higher temperature in the gasification combustion chamber 18.

On the inner furnace tube wall of destructive distillation chamber 16, also be provided with the natural wind blast pipe 17 that is connected with furnace body outer wall, thus can be where necessary for replenishing air in the destructive distillation chamber 16.

Claims

1. combined type less boiler, stove tube (5) in being provided with in the body of heater, interior stove tube (5) bottom is provided with fire bars (11), furnace body outer wall is provided with coal feeding hole (20), it is characterized in that: the number of stove tube (5) is at least one in said, the poly-fire arch (4) and the retaining fire that are disposed with the projecting inward and positioned opposite of inside stove tube (5) on the inner furnace tube wall from top to bottom encircle (15), form secondary furnace (14) in interior stove tube (5) chamber between poly-fire arch (4) and the retaining fire arch (15), be horizontally arranged with water pipe furnace grate (9) in interior stove tube (5) chamber of retaining fire arch (15) below, water pipe furnace grate (9) is communicated with relative inner furnace tube wall, form destructive distillation chamber (16) in interior stove tube (5) chamber between water pipe furnace grate (9) and the retaining fire arch (15), water pipe furnace grate (9) and be positioned at stove tube (5) chamber formation gasification combustion chamber (18) between the fire bars (11) of stove tube (5) bottom, be interconnected by the pyrotechnics pipe (8) that is positioned at the inner furnace tube wall outside between gasification combustion chamber (18) and the secondary furnace (14), the retaining fire arch (15) of both sides all forms with secondary air channel (7) and is tightly connected, by the uniform eye of wind that is provided with on the tube wall in destructive distillation chamber (16) of the secondary air channel (7) of air blast (23) air-supply, coal feeding hole (20) is connected with destructive distillation chamber (16).

2. combined type less boiler according to claim 1 is characterized in that: described body of heater is divided into separate upper and lower two parts, between upper furnace body (1) and the lower furnace body (3) for being tightly connected.

3. combined type less boiler according to claim 1, it is characterized in that: bottom of furnace body is provided with an air compartment (12), the uniform blast pipe (13) that is provided with on the inwall of the close fire bars (11) of an air compartment (12), an airduct (24) that links to each other with air blast (23) is connected with an air compartment (12).

4. combined type less boiler according to claim 1 is characterized in that: the uniform radiant wall (10) that is provided with on the internal perisporium of gasification combustion chamber (18).

5. combined type less boiler according to claim 1 is characterized in that: also be provided with the natural wind blast pipe (17) that is connected with furnace body outer wall on the inner furnace tube wall of destructive distillation chamber (16).

6. combined type less boiler according to claim 1 is characterized in that: poly-fire arch (4) and retaining fire arch (15) all are arc or oval shape.