CN104006378A - Soot-free energy-saving pot - Google Patents

Abstract

The invention discloses a soot-free energy-saving pot. The technology that micro negative pressure natural excessive induced air in a furnace and automatic chemical soot removing in the furnace is used, and black soot is removed from the source. The soot-free energy-saving pot is characterized in that break angle air inlet tubes (4) are arranged between a furnace interlayer bottom plate (7) and a furnace pipe wall (1) and are distributed along the circumference of the furnace interlayer bottom plate, fresh air which is preheated in a furnace skirt (8) is automatically distributed, small part of the fresh air enters a hot fuel layer through a fire grate (9) to conduct redox reaction with carbon, the other large part of the fresh air bypasses the break angle air inlet tubes (4) to be continuously preheated and then enters the top of the fuel layer in a hearth (12) to conduct chemical reaction with gasified flammable gas and generate heat, excessive fresh air covers the part from the bottom of the fire grate to the top of the fuel layer, solid and gaseous fuel can be burnt completely at the same time, and the chimney smoke discharging blackness Ringelmann is zero level to one level. According to the soot-free energy-saving pot, the furnace structure is simple, manufacturing is easy, an air blower or an induced draught fan does not need to be externally arranged to support combustion, and an external mechanical and physical method is of no need. The starting speed is high, the firepower is high, operation is stable, and cost is low.

Description

A kind of smoke free energy-saving boiler

Technical field

A smoke free energy-saving boiler, is specifically related to a kind of burning solid fuel smoke free energy-saving boiler, belongs to mechanical engineering field.

Background technology

burning solid fuelsmoke free energy-saving boiler, learns through retrieving relevant authoritative technical literature, the patent approaching with the present invention has: the patent No.: 201320397954.1; Patent name: a kind of less boiler combustion chamber, Granted publication number: CN203404772U, this patent core component is: " in combustion chamber, body interior is provided with baffle plate ", this baffle plate has three large defects: first, do not meet " combustion space " in burning condition four key elements, insider knows that the completing combustion of fuel needs four elements, the combustibility of (1) fuel, (2) combustion space, (3) excessive oxygen supply, (4) ignition temperature.In the description of this patent, describe with structural representation in see, its combustion space is pushed by baffle plate, there is no enough combustion spaces; The second, affect thermal energy conduction, radiation and convection current; The 3rd, this baffle plate is arranged on burner hearth highest temperature district, needs inorganic fire proof material to make, and difficulty of construction is large, and service life is short.

The solid fuel boiler moving on the market now, it is all fire grate carrying solid fuel, adopt air blast or air-introduced machine combustion-supporting, the dedusting of peripheral hardware physical method, combustion air is forced to from fire grate seam, clamp-on oxidized layer fast, contact with hot fuel bed, fine particle is flown up by flow perturbation, owing to being subject to the restriction of grate area and solid fuel resistance, at this moment oxygen exhausts, on fuel bed top, without excessive fresh air, for gasification combustible gas, react, most of unreacted combustible gas that gasifies completely, confuse air-flow and carrying together the fine particle formation black smoke dirt flying up, in these black smoke dirt, contain a large amount of carbon monoxide, carbon dioxide, nitrogen oxide, sulfur dioxide gas etc. are very difficult clean with physical method dedusting.Some boilers adopt mechanical type to increase Secondary Air, to fuel bed, disturb larger, make fuel bed can not get quiet burning in order, the present invention is different from the above: adopted chemical smoke of gunpowder dedusting voluntarily in the naturally excessive air inducing of micro-negative pressure, stove in stove, this technique adapt to that vertical boiler also adapts to horizontal boiler, furnace type structure is simple, easy to manufacture, do not need peripheral hardware air blast or air-introduced machine combustion-supporting, do not need the dedusting of peripheral hardware physical method.Toggle speed is fast, firepower is violent, operate steadily, cost is low.As everyone knows, the burning exothermic process of fuel is exactly the process of carbon and oxygen a series of redox reactions in high temperature, if react completely thorough chimney, smoke dust is blown out, otherwise this boiler is just in indigestion state, with the dedusting of peripheral hardware physical method, just cure the symptoms, not the disease.In micro-negative pressure stove of the present invention, in naturally excessive air inducing, stove, chemical smoke prevention and dust control process is better than above-mentioned voluntarily.

Summary of the invention

A kind of smoke free energy-saving boiler, adopted chemical smoke abatement and dust control voluntarily in the naturally excessive air inducing of micro-negative pressure, stove in stove, on source, eliminate black smoke dirt, making its digestion in burner hearth, discharge heat energy maximizes, how to allow in the air-flow rising in chimney and do not carry black smoke dirt? must meet burning four key elements, undisturbed is quiet burning in order.

The present invention is achieved by the following technical solutions: between stove interlayer base plate and furnace wall, be provided with knuckle and drink airduct; Along stove interlayer base plate circle distribution; Its quantity is determined according to designing and calculating, should ensure, burner hearth internal combustion bed of material top has excessive fresh air to exist, and chimney breast oke exhaust blackness is as the criterion 0 to 1 grade of Lin Geman.For this reason, with fire door and air door, regulate the air inflow of combustion-supporting fresh air, when ozone enters preheating stove skirt from air door, automatically distribute, sub-fraction is sewed on and is risen redox reaction through hot oxide layer and reducing zone and the carbon from fire grate, another major part is drunk airduct by knuckle and is continued preheating, be intersected in the highest temperature at burner hearth center, the combustion zone of the richest gasification combustible gas, knuckle is drunk flow velocity and the flow of airduct interior heat air, flow velocity and flow much larger than fire grate solid fuel layer hot-air, this has just formed naturally excessive blower effect, a large amount of fresh airs is drunk airduct by knuckle and is enriched in high-temperature region, fuel bed top, above burner hearth internal solid fuel bed, form a micro-negative pressuren zone, this micro-negative pressure is accelerated the rate of climb of fresh air under fire grate, the size of air inducing power is by chimney, temperature, fire door and decision that air door regulates, the larger stove fire of air inducing power is more prosperous, improved the redox reaction ability of solid fuel layer, make solid-state, fuel gas primary combustion simultaneously fully and completely, reach the naturally excessive air inducing of micro-negative pressure in stove, the object of chemical smoke abatement and dust control voluntarily in stove, realized the combustion-supporting smoke dust operation of boiler natural induced draft.

Accompanying drawing explanation: Fig. 1: vertical section structure schematic diagram

Fig. 2: first-first planar structure schematic diagram

In figure: furnace wall (1), drum wall (2), stove interlayer (3), knuckle are drunk airduct (4), drink wind tube outlet (5), drunk airduct entrance (6), stove interlayer base plate (7), stove skirt (8), fire grate (9), air door (10), fire door (11), burner hearth (12).

The specific embodiment: as depicted in figs. 1 and 2, a kind of smoke free energy-saving boiler, comprise: furnace wall (1), drum wall (2), stove interlayer (3), knuckle is drunk airduct (4), drink wind tube outlet (5), drink airduct entrance (6), stove interlayer base plate (7), stove skirt (8), fire grate (9), air door (10), fire door (11), burner hearth (12), between stove interlayer base plate (7) and furnace wall (1), establish knuckle and drink airduct (4), it is the core component that boiler has or not black smoke dirt that knuckle is drunk airduct (4), along stove interlayer base plate circle distribution, its quantity should ensure 0 to 1 grade of oke exhaust blackness Lin Geman.

Beneficial effect of the present invention is: between stove interlayer base plate (7) and furnace wall (1), establish knuckle and drink airduct (4), along stove interlayer base plate circle distribution, make the inner fresh air being preheated of stove skirt (8), automatically distribute, sub-fraction enters hot fuel bed and carbon generation redox reaction by fire grate (9), another major part is walked around fire grate (9) and along knuckle, is drunk airduct (4) and continue preheating and enter burner hearth (12) fuel bed top, with gasification combustible gas generation chemical reaction heat release, from fire grate bottom to fuel bed top, by excessive fresh air, wrapped up, cause solid-state, fuel gas primary combustion simultaneously fully and completely, this furnace type structure is simple, easy to manufacture, do not need peripheral hardware air blast or air-introduced machine combustion-supporting, do not need the dedusting of peripheral hardware physical method.Toggle speed is fast, firepower is violent, operate steadily, cost is low.

According to boiler operatiopn state, further illustrate the advanced feature of smoke free energy-saving boiler: the fuel on fire grate is lighted, preheating burner hearth, temperature continues to rise, the air-flow rising along body of heater chimney accelerates gradually, air inducing power strengthens gradually, when full burner hearth reaches uniform temperature, fill it up with the solid fuel on fire grate, close fire door, now micro-negative pressure sustainable maximization of air inducing power that makes progress in stove, the size of air inducing power is by chimney, temperature, fire door and decision that air door regulates, the larger stove fire of air inducing power is more prosperous, improved the redox reaction ability of solid fuel layer, make solid-state, fuel gas primary combustion simultaneously fully and completely, omnidistance operation is without external force combustion-aided dust-removing, start the fast firepower of the speed of service violent, the cost that operates steadily is low, reached the naturally excessive air inducing of micro-negative pressure in stove, the object of chemical smoke abatement and dust control voluntarily in stove, black smoke dirt is eliminated among rudiment.

Claims (4)

1. a smoke free energy-saving boiler, has adopted in stove in micro-negative pressure natural induced draft, stove chemical smoke prevention and dust control process voluntarily, eliminates black smoke dirt on source, it is characterized in that: between stove interlayer base plate (7) and furnace wall (1), establish knuckle and drink airduct (4); Drink wind tube outlet (5); Drink airduct entrance (6).

2. according to claim 1: a kind of smoke free energy-saving boiler, is characterized in that: described knuckle is drunk airduct (4); Along stove interlayer base plate (7), distribute; Its quantity is determined according to designing and calculating, should ensure that burner hearth internal combustion bed of material top has excessive fresh air to exist, and chimney breast oke exhaust blackness is as the criterion 0 to 1 grade of Lin Geman.

3. according to claim 1 and 2: a kind of smoke free energy-saving boiler, is characterized in that: described knuckle is drunk airduct (4); It drinks airduct entrance (6) and stove interlayer base plate (7) butt welding; Drink wind tube outlet (5) and furnace wall (1) butt welding.

4. according to described in claim 1 or 2 or 3: a kind of smoke free energy-saving boiler, is characterized in that: described knuckle is drunk airduct (4); Vertical and the horizontal boiler of simultaneous adaptation.