CN101876478A

CN101876478A - White heat vaporization oxygen control combustion heat circulation boiler

Info

Publication number: CN101876478A
Application number: CN2009100113742A
Authority: CN
Inventors: 张际新; 邴志林
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-01
Filing date: 2009-05-01
Publication date: 2010-11-03

Abstract

The invention relates to a white heat vaporization oxygen control combustion heat circulation boiler comprising an oxygen control combustion mechanism and a heat absorption circulation mechanism, wherein the oxygen control combustion mechanism consists of a boiler body, a combustion chamber, oxygen feeding doors, a fire outlet, a furnace grate and a fire baffle, and the heat absorption circulation mechanism consists of a main water jacket 7, an auxiliary water jacket 6 and a perforated water jacket 14. An oxygen feeding hole 2 arranged at the upper part of the combustion chamber corresponds to an upper edge hole of a curtain cover 1, the lower front part of the combustion chamber and the opposite side of the fire outlet 13 are provided with the oxygen feeding doors 4, and an air regulation plate 5 is arranged under the furnace grate 12 at the oxygen feeding doors. The side face of the combustion chamber in front of the fire outlet is provided with a heat circulation chamber surrounded by the main water jacket 7. The combustion chamber 3 and the fire outlet 13 are communicated with the heat circulation chamber, and the movable fire baffle 9 is arranged between the combustion chamber and the heat circulation chamber. The invention has sufficient combustion with the combustion ratio reaching 95 percent, saves energy by 46-70 percent, reduces the discharge by 90 percent compared with the traditional method, and achieves the purpose of direct emission reduction without additionally arranging a purification device. In addition, multiway controllable oxygen supply and a heat circulation and absorption technology are adopted so that the thermal efficiency can reach 87 percent.

Description

White heat vaporization oxygen control combustion heat circulation boiler

Technical field

The present invention relates to a kind of coal-fired normal-pressure boiler, particularly fuel can fully burn, and thermal efficiency height, heating surface area are big, the white heat vaporization oxygen control combustion heat circulation boiler of fuel saving.

Background technology

The boiler that existing market is sold all is to adopt traditional combustion method, and structure is that body of heater is arranged mostly, and the space forms the combustion chamber in the body of heater, and ventilating opening, fire grate, ashes chamber and fire door are arranged under the combustion chamber, and linking to each other with the combustion chamber is connected to smoke exhaust pipe; In the body of heater upper end fuel inlet is arranged, the stove inner combustion chamber is placed with water pipe, is connected to water return outlet and hot water outlet with water pipe.During use, by fuel inlet coal is inserted, the flue gas that coal combustion produced (heat) is to the water pipe heating, and the hot water in the water pipe enters heating system from hot water outlet, and heat radiation is after the water of return pipe turns back to the combustion chamber heating, as circulation repeatedly a bit.But the present following problem of boiler ubiquity in application: it is insufficient 1. to burn, and the discharging flue dust is big, because crater up, fuel is in the bottom, and the flue gas of generation burns insufficient to top; 2. fuel will go up that burning zone and fuel gas are isolated to be lost combustible gas in vain, also contain SO in the loss flue gas ₂Deng oxious component and pollute; 3. the terminal outlet of large-sized boiler all connects purifier at present, and involves great expense, and has increased the user installation production cost, consequently can only reduce discharging, can not be energy-conservation; 4. heat utilization ratio is low, makes heating surface area less relatively, if reach desirable heating effect, a large amount of fire coal of essential burning causes to waste energy.

Summary of the invention

The present invention is in order to solve many defectives that prior art exists, the white heat vaporization oxygen control combustion heat circulation boiler of fuel combustions such as a kind of sufficient combustion, heat utilization efficiency height, fast, energy-conservation and pollution-free, the available coal of heat transfer rate, straw to be provided.

The operation principle of foundation of the present invention is: fuel is when the body of heater internal combustion, under the sufficient situation of oxygen supply, can form the glowing combustion layer, but the glowing combustion layer can produce a large amount of purer burning fumes in combustion process, owing to take multidirectional oxygen supply structure, make furnace bottom, top that sufficient oxygen can both be provided, but burning fume is fully burnt, burning simultaneously mainly concentrates on crater, the glowing combustion layer that crater is formed is more and more thicker, but burning fume is from exporting by being lighted formation flame by the glowing combustion layer at once.

Technical solution of the present invention is: a kind of white heat vaporization oxygen control combustion heat circulation boiler, include body of heater, combustion chamber [3], control oxygen circle [11], advance oxygen door [4], crater [13], fire grate [12], the control oxygen combustion mechanism that fireguard [9] is formed, main water sleeve [7] is arranged, auxiliary water jacket [6], the heat absorption cycling mechanism that water jacket with holes [14] is formed, it is characterized in that: the feeding oxygen hole [2] that top, combustion chamber [3] is provided with is corresponding with curtain lid [1] hole, upper edge, combustion chamber [3] inferoanterior and place, crater [13] opposite are provided with into oxygen door [4], advance and air regulating board [5] is set below the fire grate [12] that oxygen door [4] locates, in the side of crater [13] combustion chamber, the place ahead is the thermal cycle chamber that is surrounded by main water sleeve [7], combustion chamber [3] and crater [13] communicate with the thermal cycle chamber, are provided with removable fireguard [9] between combustion chamber 3 and the thermal cycle chamber.

Main water sleeve in the heat absorption cycling mechanism of the present invention is around forming the thermal cycle chamber, both sides, thermal cycle chamber are provided with auxiliary water jacket [6], auxiliary water jacket [6] leaves the gap with main water sleeve [7] and is parallel to each other, with the perpendicular water jacket with holes [14] that is provided with of auxiliary water jacket, auxiliary water jacket [6] and water jacket with holes [14] are communicated with body of heater upper strata main water sleeve [7], the fire grate of being made up of hollow bar [12] is communicated with main water sleeve [7], and the end of main water sleeve [7] cyclic gap is communicated with chimney [10].

The present invention compared with prior art has the following advantages:

1, energy-saving and emission-reduction.Utilize the white heat vaporization theory of combustion, make full combustion of fuel, combustion rate can reach 95%.Can save energy 46～70%, the airborne release flue dust reduces discharging 90% than conventional method, reaches direct reduction of discharging, need not to install additional purifier;

2, sustained combustion, thermal discharge is big.This boiler is in fierce fired state from start to finish, and adding how thick fuel in the combustion chamber does not influence normal combustion;

3, the fuel utilization is extensive.This boiler can burn with all solid combustibles such as coal, straw, timber, and its effect is constant, can be used for uses such as villages and towns in rural areas family, the heating of group unit, cooking, bathing;

4, multidirectional controlled oxygen supply.Boiler is in the glowing combustion state in the bottom all the time when burning, but the burning fume of generation can fully be burnt under the condition of multidirectional oxygen supply, the glowing combustion layer contacts all the time closely with combustible gas, adopt thermal cycle heat absorption technology, the thermal efficiency can reach about 87%, endothermic effect is remarkable, and the chimney terminal temperature can be controlled in below 100 ℃.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 be among Fig. 1 along A-A to cutaway view.

Fig. 3 be among Fig. 1 along B-B to cutaway view.

Fig. 4 is the control oxygen coil structures schematic diagram that the combustion bavin uses.

The specific embodiment

Below in conjunction with accompanying drawing specific embodiments of the present invention are described in detail.

As shown in Figure 1 and Figure 2: body of heater one side is combustion chamber 3, opposite side is a chimney 10, there are several feeding oxygen holes 23 upper edges, combustion chamber, to cover hole, 1 upper edge corresponding with the curtain of outside, cover 1 adjustment apertures size by the rotation curtain and control oxygen feeding amount, the place ahead, combustion chamber bottom is located to be provided with into oxygen door 4 with crater 13 opposites, opens into the oxygen door and can be the combustion chamber air is provided; Fire grate 12 is arranged at 3 bottoms, combustion chamber, and fire grate 12 is made up of the fire bars of hollow, and hollow bar is connected with main water sleeve 7.Advancing the air regulating board 5 that oxygen door 4 and fire grate 12 bottoms are provided with control fire grate 12 bottom oxygen-supplying amounts, air regulating board 5 can spur front and back, the space of air regulating board one side and its dual-purpose is provided with bottom deashing chamber 5a, in the side of combustion chamber, crater 13 the place ahead is the thermal cycle chamber that is surrounded by main water sleeve 7, combustion chamber 3 and crater 13 communicate with the thermal cycle chamber, two fireguards 9 that can move to both sides are set between combustion chamber 3 and the thermal cycle chamber, and fireguard 9 back upper places are fire door 8.

As shown in Figure 3, Figure 4: surround the thermal cycle chamber by main water sleeve 7 in body of heater, both sides, thermal cycle chamber are provided with auxiliary water jacket 6, can be normally current between major-minor water jacket for making flame, and leave the gap between auxiliary water jacket 6 in both sides and the main water sleeve, and be parallel to each other; Be provided with water jacket 14 with holes with auxiliary water jacket is perpendicular, its hole link thermal cycle chamber, it is relative with crater 13 that water jacket 14 with holes is positioned at waste discharge gas port 15 the place aheads, and auxiliary water jacket 6 and water jacket with holes 14 are communicated with body of heater upper strata main water sleeve 7, and the end of main water sleeve cyclic gap connects chimney 10;

Using method of the present invention: at first open stove curtain lid 1 and air regulating board 5, light with the inflammable fuel combustion chamber of packing into, close air regulating board after lighting at once, oxygen is entered from fire door, if only fire straw, branch, biomass fuels such as timber, just curtain lid 1 is taken, cover 1 position at the top of combustion chamber curtain and place reducing control oxygen circle 11, control oxygen circle 11 is buckled on the fire door of combustion chamber, the bavin straw are placed in the control oxygen circle, make air only enter combustion chamber 3 from the top of oxygen supply circle 11, because of the inner ring bore of control oxygen circle 11 less, can make into that oxygen speeds up, prevent that flame from upwards burning or spread to the outside.If use coal will be opened bottom air regulating board 5, but the curtain of turn simultaneously lid 1 is opened feeding oxygen hole 2, and oxygen is concentrated to crater 13, forms the glowing combustion layer rapidly, and the glowing combustion layer forms the after-combustion rate near 100%, and soot emissions approach zero.

After a period of time,, make the combustion chamber anoxic dead angle occur in normal combustion because oxygen all concentrates near the crater.Strengthen firepower if desired, can open into oxygen door 4, make oxygen directly enter the glowing combustion layer, but strengthen the generation of burning fume, this moment is if chimney has cigarette promptly is the oxygen deficiency, can suitably close air regulating board 5, also can open bell, satisfy the oxygen supply of crater 13, heat is less if desired, can close into oxygen door, push inward air regulating board, strengthen stove top oxygen supply.

Combustion flame has two kinds of trends after crater 13 is gone out, a kind of is in the middle of fireguard 9 is moved to, flame will be assisted water jacket 6 and main water sleeve 7 middle passing through from both sides, from the duct of water jacket 14 with holes and in the space of water jacket with holes and whole water jacket, pass through afterwards, heat is fully absorbed, heat up water if desired or cook and allow flame pass through from fire door 8, just need push fireguard 9 to both sides, two quirks are blocked, flame from the centre by to the burning of kettle or cooker, ember directly from the hole of water jacket 14 with holes by entering waste discharge gas port 15.

Claims

1. white heat vaporization oxygen control combustion heat circulation boiler, include body of heater, combustion chamber [3], control oxygen circle [11], advance oxygen door [4], crater [13], fire grate [12], the control oxygen combustion mechanism that fireguard [9] is formed, main water sleeve [7] is arranged, auxiliary water jacket [6], the heat absorption cycling mechanism that water jacket with holes [14] is formed, it is characterized in that: the feeding oxygen hole [2] that top, combustion chamber [3] is provided with is corresponding with curtain lid [1] hole, upper edge, combustion chamber [3] inferoanterior and place, crater [13] opposite are provided with into oxygen door [4], advance and air regulating board [5] is set below the fire grate [12] that oxygen door [4] locates, in the side of crater [13] combustion chamber, the place ahead is the thermal cycle chamber that is surrounded by main water sleeve [7], combustion chamber [3] and crater [13] communicate with the thermal cycle chamber, are provided with removable fireguard [9] between combustion chamber 3 and the thermal cycle chamber.

2. according to the described white heat vaporization oxygen control combustion heat circulation boiler of claim 1, it is characterized in that both sides, described thermal cycle chamber are provided with auxiliary water jacket [6], auxiliary water jacket [6] leaves the gap with main water sleeve [7] and is parallel to each other, with the perpendicular water jacket with holes [14] that is provided with of auxiliary water jacket, auxiliary water jacket [6] and water jacket with holes [14] are communicated with body of heater upper strata main water sleeve [7], the fire grate of being made up of hollow bar [12] is communicated with main water sleeve [7], and the end of main water sleeve [7] cyclic gap is communicated with chimney [10].

3. according to the described white heat vaporization oxygen control combustion heat circulation boiler of claim 1, it is characterized in that placing reducing control oxygen circle [11] at top of combustion chamber curtain lid [1] position.