CN203336581U

CN203336581U - Smokeless combustor

Info

Publication number: CN203336581U
Application number: CN2013203446960U
Authority: CN
Inventors: 杨杏枝; 朱卫民; 武红蕾; 武美生
Original assignee: SHANXI TELAND BOILER CO Ltd
Current assignee: SHANXI TELAND BOILER CO Ltd
Priority date: 2013-06-17
Filing date: 2013-06-17
Publication date: 2013-12-11
Anticipated expiration: 2023-06-17

Abstract

The utility model is a smokeless burner, which solves the problems of incomplete combustion, large heat loss, low thermal efficiency, black smoke pollution and the like in existing heating facilities. The utility model comprises a heat storage body and a secondary air box installed on the top of the heat storage body; several vertical guide through holes are opened on the heat storage body, and several inner, The secondary air sleeve composed of the outer tube has a number of ventilation holes on the tube walls of the inner and outer tubes; the number of the secondary air sleeve in the secondary air box is the same as that of the guide through holes on the heat storage body and the position is the same. One-to-one correspondence; the side plate of the secondary air box is provided with a secondary air inlet pipe with a damper. The utility model has the function of secondary combustion, promotes the complete combustion of fuel, improves the utilization rate of fuel, saves energy, does not emit black smoke, and purifies air. The utility model can improve the thermal efficiency of the heating facility by 10% compared with similar products.

Description

Smokeless burner

Technical field

The utility model relates to a kind of additional combustion equipment be applied on the heating facilities such as boiler, hot-blast stove, kiln, specifically a kind of smokeless burner.

Background technology

Existing boiler, hot-blast stove, the heating facilities such as kiln, because of its investment little, easy to operate reason, decades have been applied in China, but because adopt manually-operated, the reason of unidirectional burning, these heating facilities in use, because of the frequent fire door of opening, there are air quantity periodically deficiency or superfluous problem, at the coal initial stage, coal seam is thicker, the air capacity needed is large, the single-pass wind resistance is large, supply falls short of demand to enter the air of burner hearth, cause excess air factor unstable, cause the fugitive constituent high temperature anaerobic decay in bituminous coal, the imflammable gas imperfect combustion, the boiler over-emitting black exhaust, heat loss due to exhaust gas is large, cause energy waste, the problems such as environmental pollution, can not reach the requirement of environmental protection.

Summary of the invention

The purpose of this utility model is in order to solve the heating facilities such as existing boiler, hot-blast stove, kiln in combustion process, because excess air factor is unstable, and the fired coal combustion caused is incomplete, over-emitting black exhaust occurs, heat loss due to exhaust gas is excessive, cause the problem of the low and environmental pollution of the thermal efficiency of heating facility, and provide a kind of efficient assisted combustion device, specifically a kind of smokeless burner.The fugitive constituent that this smokeless burner can be decomposes in the imflammable gas of incomplete combustion and fire coal provides the chance of second-time burning.

The utility model is achieved through the following technical solutions:

A kind of smokeless burner, comprise heat storage and the secondary air box that is arranged on the heat storage top; Evenly offer several vertical guide through hole on heat storage, several Secondary Air sleeve pipes are installed in secondary air box, the Secondary Air sleeve pipe comprises outer tube and inner tube, two mouths of pipe of outer tube are individually fixed on the top board and base plate of secondary air box, and on the top board of secondary air box and base plate, the position of the corresponding outer tube mouth of pipe offers the air port communicated with outer tube, inner tube is inserted in outer tube, and by tie-beam, fixes between inner and outer tubes, all offers some passages on the tube wall of outer tube and inner tube; The quantity of the Secondary Air sleeve pipe in secondary air box and the guide through hole on heat storage is identical and position is corresponding one by one, and the diameter of inner pipe of Secondary Air sleeve pipe is identical with the diameter of guide through hole and the two is to its setting (being that the axis of inner tube and the axis of guide through hole are located along the same line); Be connected with the secondary air intake pipe communicated with the secondary air box inner space on the side plate of secondary air box, the import department of secondary air intake pipe is equipped with air register (air register enters the air capacity in burner in order to control, and its structure and control principle belong to the routine techniques means).Wherein, the quantity of guide through hole, Secondary Air sleeve pipe and diameter can determine according to the size of boiler power, makes the speed of the gas in guide through hole and Secondary Air sleeve pipe be controlled at 15m/s and be advisable, and this is that those skilled in the art easily realize.

During use, the utility model burner is arranged on to the roof of the furnace in boiler, it between burner and fire grate, is combustion zone, fuel is placed in combustion zone, after ignited fuel, heat storage gathers a large amount of heat energy under the baking of fuel, is imflammable gas and volatile matter also intensification rapidly of guide through hole by heat storage with higher speed of fuel decomposition, in final directive secondary joint sealing.Secondary joint sealing inner space is secondary air chamber, the inner and outer pipes setting of Secondary Air sleeve pipe can further be improved the composite rate of Secondary Air and imflammable gas and volatile matter, Secondary Air is in secondary air intake pipe enters into secondary air chamber, and mix with imflammable gas and volatile matter in inner tube by Secondary Air sleeve pipe upper vent hole, the gap of part Secondary Air through between inner and outer tubes rises to the burner top simultaneously, the air that q.s is arranged while guaranteeing burning, finally make imflammable gas and volatile matter be fully burned, further improve the utilization rate of fuel, reached the effect of smoke abatement and dust control simultaneously.

Further, the outer surface in secondary air box is provided with fire-resistant cover layer.

The height of heat storage is 500-700mm, and the length of guide through hole is 500-700mm, so just can make the imflammable gas in guide through hole and be guaranteed the heat time heating time of volatile matter, imflammable gas and the sustained combustion of volatile matter ability; The spacing of the guide through hole of offering on heat storage is 198-202mm, if the too small second-time burning efficiency that can affect burner of the spacing of guide through hole, if the guide through hole spacing is excessive, the burner volume will increase, and cost also can increase; Outer, the interior tube pitch of Secondary Air sleeve pipe are 8-10mm, and the diameter of the passage of offering on outer, inner pipe wall is 10mm, and such Secondary Air that can make into that arranges distributes more evenly rationally, burns more abundant.

The utility model burner is imflammable gas and the volatile matter of incomplete combustion further, by second-time burning, solved fuel combustion not exclusively, the phenomenon such as over-emitting black exhaust, further improved fuel utilization rate, saved the energy, purified air.The thermal efficiency of the heating facilities such as the boiler of use the utility model burner, hot-blast stove has improved 10% than like product, reaches the dust emission standard of heating facility.In addition, after using the utility model burner, heating facility can be realized the disposable input of fuel, can keep 3-4h not need refuelling again, reduce the opening times of fire door, make the excess coefficient of air keep stable, improve the thermal efficiency of fuel, reached the effect of smokeless combustion.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

The structural representation that Fig. 2 is secondary air box in the utility model.

Fig. 3 is top view of the present utility model.

In figure: 1-heat storage, 2-secondary air box, 2-1-air port, 3-guide through hole, 4-Secondary Air sleeve pipe, 4-1-outer tube, 4-2-inner tube, 4-3-tie-beam, 4-4-passage, 5-secondary air intake pipe, 6-air register, the fire-resistant cover layer of 7-.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1, 2, 3, a kind of smokeless burner, comprise heat storage 1 and the secondary air box 2 that is arranged on heat storage 1 top, evenly offer several vertical guide through hole 3 on heat storage 1, several Secondary Air sleeve pipes 4 are installed in secondary air box 2, Secondary Air sleeve pipe 4 comprises outer tube 4-1 and inner tube 4-2, two mouths of pipe of outer tube 4-1 are individually fixed on the top board and base plate of secondary air box 2, and on the top board of secondary air box 2 and base plate, the position of the corresponding outer tube 4-1 mouth of pipe offers the air port 2-1 communicated with outer tube 4-1, inner tube 4-2 is inserted in outer tube 4-1, and by tie-beam 4-3, fix between inner tube 4-2 and outer tube 4-1, all offer some passage 4-4 on the tube wall of outer tube 4-1 and inner tube 4-2, the quantity of the Secondary Air sleeve pipe 4 in secondary air box 2 and the guide through hole 3 on heat storage 1 is identical and position is corresponding one by one, the inner tube 4-2 diameter of Secondary Air sleeve pipe 4 identical with the diameter of guide through hole 3 and the two it is arranged, be connected with the secondary air intake pipe 5 communicated with secondary air box 2 inner spaces on the side plate of secondary air box 2, the import department of secondary air intake pipe 5 is equipped with air register 6.

During concrete enforcement, at the outer surface of secondary air box 2, be provided with fire-resistant cover layer 7.The height of heat storage 1 is 500-700mm, the spacing of the guide through hole 3 of offering on heat storage 1 is 198-202mm, outer, inner tube 4-1, the 4-2 spacing of Secondary Air sleeve pipe 4 are 8-100mm, and the diameter of the passage 4-4 offered on outer, inner tube 4-1,4-2 tube wall is 10mm.

Claims

1. a smokeless burner is characterized in that: comprise heat storage (1) and be arranged on the secondary air box (2) at heat storage (1) top, evenly offer several vertical guide through hole (3) on heat storage (1), several Secondary Air sleeve pipes (4) are installed in secondary air box (2), Secondary Air sleeve pipe (4) comprises outer tube (4-1) and inner tube (4-2), two mouths of pipe of outer tube (4-1) are individually fixed on the top board and base plate of secondary air box (2), and on the top board of secondary air box (2) and base plate, the position of corresponding outer tube (4-1) mouth of pipe offers the air port (2-1) communicated with outer tube (4-1), inner tube (4-2) is inserted in outer tube (4-1), and fixing by tie-beam (4-3) between inner tube (4-2) and outer tube (4-1), all offer some passages (4-4) on the tube wall of outer tube (4-1) and inner tube (4-2), the quantity of the Secondary Air sleeve pipe (4) in secondary air box (2) and the guide through hole (3) on heat storage (1) is identical and position is corresponding one by one, inner tube (4-2) diameter of Secondary Air sleeve pipe (4) and the diameter of guide through hole (3) is identical and the two arranges it, be connected with the secondary air intake pipe (5) communicated with secondary air box (2) inner space on the side plate of secondary air box (2), the import department of secondary air intake pipe (5) is equipped with air register (6).

2. smokeless burner according to claim 1, it is characterized in that: the outer surface in secondary air box (2) is provided with fire-resistant cover layer (7).

3. smokeless burner according to claim 1 and 2, it is characterized in that: the height of heat storage (1) is 500-700mm, the spacing of the guide through hole (3) of offering on heat storage (1) is 198-202mm, outer, inner tube (4-1, the 4-2) spacing of Secondary Air sleeve pipe (4) are 8-10mm, and the diameter of the passage (4-4) of offering on outer, inner tube (4-1,4-2) tube wall is 10mm.