CN202392987U

CN202392987U - Biomass gasification boiler

Info

Publication number: CN202392987U
Application number: CN2011205179857U
Authority: CN
Inventors: 吴得治; 李鲁予; 张发旺; 丁亚昭; 乔国强
Original assignee: HENAN GOLDEN LAND GAS ENGINEERING Co Ltd
Current assignee: HENAN GOLDEN LAND GAS ENGINEERING Co Ltd
Priority date: 2011-12-10
Filing date: 2011-12-10
Publication date: 2012-08-22
Anticipated expiration: 2021-12-10

Abstract

The utility model relates to a biomass gasification boiler, which comprises a downdraft biomass gasifier, a cooler and a water heater. The downdraft biomass gasifier is communicated with the cooler through air pipes, and the cooler is communicated with the water heater through an air pipe. According to the biomass gasification boiler, dirt-removing doors and stuffing boxes are installed in the downdraft biomass gasifier and the cooler and used for timely removing dust in a mixed gas, the mixed gas free from the dust is fed into the water heater for burning, and the mixed gas is burned upwards from a flame path cone-shaped tube, then burned downwards, finally burned upwards and exhausted from a chimney, so that the mixed gas is fully burned, the dust in gas fumes is reduced, and compared with coal-fired boilers, the biomass gasification boiler is more environment-friendly.

Description

Biomass gasification boiler

Technical field:

It is the boiler of fuel that the utility model relates to the biomass material, is specifically related to a kind of biomass gasification boiler.

Background technology:

At present, in people life and commercial production, always with the fuel of coal as boiler, not only greatly consume the limited energy with coal as the fuel of boiler and also brought the serious environmental pollution, especially the small scall coal-fired boiler contaminated environment is even more serious.

Summary of the invention:

The purpose of the utility model is that providing a kind of is the biomass gasification boiler of fuel with the biomass material to the problem and shortage that exists in the prior art.

The purpose of the utility model is to realize through following technical scheme: a kind of biomass gasification boiler; Comprise the downdraft biomass gasifying furnace; And cooler and water heater formation, the downdraft biomass gasifying furnace is communicated with cooler through breather pipe, and cooler is communicated with water heater through breather pipe.

The downdraft biomass gasifying furnace comprises support and body of heater; Body of heater comprises inner barrel and outer cylinder body and top cover, and charge door is set on the top cover, and the combustible gas air inlet pipe is communicated in the inner barrel bottom; The inner barrel bottom is the back taper flue-dust retainer; Flue-dust retainer is communicated with air blast through airduct, between the inside and outside cylindrical shell annular water chamber is set, and the bottom of this annular water chamber is provided with water inlet pipe, the top sets out water pipe.

Cooler is on leg, to be fixed with cartridge heater, and the cartridge heater central vertical is to being provided with the quirk conical pipe, and this quirk conical pipe lower width is greater than top; The top of quirk conical pipe is connected with chimney; The bottom is connected with the combustible gas air inlet pipe, reaches each sidewall of top around the cartridge heater and is provided with circuitous water tank, and this circuitous water tank comprises outer water tank and internal layer water tank; Two-layer water tank is communicated with through water service pipe in the bottom, and the bottom of outer water tank is provided with water inlet pipe, top sets out water pipe.

The top of outer water tank also is provided with steam-overflowing tube, and this steam-overflowing tube is communicated with outer water tank bottom after connecting an excessive vapour cooler.

The advantage of the utility model: 1,, therefore reduced the consumption of coal, and biomass material is very abundant owing to adopt biomass material to replace the fuel of coal as boiler; 2, because this boiler all is equipped with soil-shifting door in downdraft biomass gasifying furnace and cooler and stuffing box is in time removed the dust in the air mixture, the air mixture of dust out is delivered in the water heater burnt, abundant for what burn; In quirk conical pipe bottom blowdown pipe has been installed, sufficient air is provided, promoted burning; More abundant for what burn, the length in the combustion road that extended forms one and begins upwards to burn from the quirk conical pipe; Burning downwards again, upwards burning is discharged from chimney at last, therefore air mixture is fully burnt; Reduced the dust in the flue gas, so biomass gasification boiler has reduced the pollution of environment than coal-burning boiler; 3, because water tank is all arranged in downdraft biomass gasifying furnace, cooler, water heater, in living beings gasification, air mixture cooling and air mixture combustion process, all be that water is heated, therefore a large amount of hot water energy can be provided.

Description of drawings:

Figure l is the structural representation of the utility model biomass gasification boiler.

The specific embodiment:

Referring to Fig. 1, the downdraft biomass gasifying furnace of this biomass gasification boiler is communicated with cooler through breather pipe 15,21, and cooler is communicated with water heater through breather pipe 55; The downdraft biomass gasifying furnace is made up of blower fan 1, gate valve 2, cement output tank 3, ash bucket 4, soil-shifting door 5, stove urceolus 6, stove inner core 7, furnace top cover 8, charge door l0, outlet pipe 11, fire grate 12, water inlet pipe 14, breather pipe 15, soil-shifting door 17, leg 18, and the stove inner tube installation constitutes dress water cavity in the inside of stove urceolus between stove urceolus, the stove inner core; In the stove inner core, fire grate is installed, gripper shoe 13 is installed below fire grate, on the inside and outside tube of the stove on fire grate soil-shifting door is installed; On the inside and outside tube of stove below fire grate breather pipe is installed, ventilation pipe box 16 is installed, ash bucket is installed in the inside and outside tube of stove lower end in the breather pipe outside; Cement output tank is installed in the ash bucket lower end; Cement output tank one end is installed soil-shifting door, and an end is connected with blower fan through gate valve, and leg is installed in stove urceolus lower end; Be installed into water pipe in stove urceolus bottom; Outlet pipe is installed at an upper portion thereof, stove item lid is installed, charge door and gathering hole 9 are installed on furnace top cover in the inside and outside tube of stove upper end; Cooler is made up of leg 19, soil-shifting door 20,33, breather pipe 15, fence 22, stuffing box 23, base plate 24, urceolus 25, cooling breather pipe 26, loam cake 27, inlet tube and outlet tube 30,29, air-introduced machine 3l, filler door 21, long-pending tar case 34, in the upper end of urceolus loam cake is installed, and base plate is installed in the lower end; Four cooling breather pipes vertically are installed on loam cake and the base plate, and four cooling breather pipes become series connection to be communicated with, and on the cooling breather pipe, access hole 28 are installed; Cooling breather pipe inlet end is connected with stuffing box, and fence laterally is installed in the stuffing box, on the stuffing box below the fence, breather pipe is installed; The filler door is installed in the top; Soil-shifting door is installed in lower end at stuffing box, and is filled in stuffing box, and the outlet side of cooling breather pipe is connected with air-introduced machine through breather pipe; Soil-shifting door is installed in the outlet side; And by long-pending tar case, leg is installed on the base plate, and inlet tube and outlet tube is installed on urceolus; Water heater is by drainpipe 36,49, and water inlet pipe 37, outer water tank 39, middle level water tank 40, outlet pipe 41, chimney 44, quirk conical pipe 46, inner water tank 48, blowdown pipe 50, combustion gas tube head 51, igniter 52, leg 53 constitute, and blowdown pipe and combustion gas tube head are installed in quirk conical pipe lower end; The combustion gas tube head connects breather pipe, and mounting points firearm on the combustion gas tube head is installed inner water tank around the quirk conical pipe; At the peripheral middle level water tank of installing of inner water tank; The peripheral outer water tank of installing of water tank in the middle level, outer water tank is communicated with quirk conical pipe bottom, and inner water tank, middle level water tank, outer water tank are interconnected; The middle level water tank can communicate through water service pipe 38,47 with outer water tank; Form burning gallery between it, chimney, Pressure gauge 42, Safety relief valve 43, the gas cooler 45 that overflows are installed at the top of outer water tank, inlet tube and outlet tube is installed on the outer water tank; Supporting plate and drainpipe are installed in bottom at outer water tank, and leg is installed on the supporting plate.

The utility model biomass gasification boiler working procedure: biomass material adds the gasification furnace internal combustion from the charge door on the downdraft biomass gasifying furnace, under the twitch of blower fan, has accomplished the biomass thermal chemical reaction through super-dry, destructive distillation, oxidation, reduction process; Become the air mixture that carbon monoxide, hydrogen, methane and tar decompose the permanent molecule synthesis that the back forms by solid biomass, air mixture gets into the stuffing box in the cooler through breather pipe, the removal dust; Air mixture gets into the cooling breather pipe, because between cooling breather pipe and urceolus, fill water, the temperature of air mixture is very high; Up to about 500 degree, after through the cooling breather pipe, water is heated, the air mixture temperature is reduced; Overcome of the side effect of high-temperature combustible gas body to air-introduced machine; Under the effect of air-introduced machine, air mixture gets into the quirk conical pipe internal combustion in the water heater, the air mixture of burning through breather pipe; Along the burning gallery burning that forms between inner water tank, middle level water tank, the outer water tank; Be air mixture in quirk conical pipe internal combustion. go out from quirk conical pipe top, move down burning along the combustion road that forms between inner water tank, the middle level water tank; Get into liter burning on the combustion road that is formed by middle level water tank and outer water tank through the combustion road of water tank bottom, middle level, discharge from chimney at the top up to the combustion road, in combustion process the water in inner water tank, middle level water tank, the outer water tank is heated.

Claims

1. a biomass gasification boiler comprises the downdraft biomass gasifying furnace, and cooler and water heater formation, and it is characterized in that: the downdraft biomass gasifying furnace is communicated with cooler through breather pipe, and cooler is communicated with water heater through breather pipe.

2. biomass gasification boiler according to claim 1 is characterized in that: the downdraft biomass gasifying furnace comprises support and body of heater, and body of heater comprises inner barrel and outer cylinder body and top cover; Charge door is set on the top cover; The combustible gas air inlet pipe is communicated in the inner barrel bottom, and the inner barrel bottom is the back taper flue-dust retainer, and flue-dust retainer is communicated with air blast through airduct; Between the inside and outside cylindrical shell annular water chamber is set, the bottom of this annular water chamber is provided with water inlet pipe, the top sets out water pipe.

3. biomass gasification boiler according to claim 1; It is characterized in that: cooler is on leg, to be fixed with cartridge heater, and the cartridge heater central vertical is to being provided with the quirk conical pipe, and this quirk conical pipe lower width is greater than top; The top of quirk conical pipe is connected with chimney; The bottom is connected with the combustible gas air inlet pipe, reaches each sidewall of top around the cartridge heater and is provided with circuitous water tank, and this circuitous water tank comprises outer water tank and internal layer water tank; Two-layer water tank is communicated with through water service pipe in the bottom, and the bottom of outer water tank is provided with water inlet pipe, top sets out water pipe.

4. biomass gasification boiler according to claim 1 is characterized in that: the top of outer water tank also is provided with steam-overflowing tube, and this steam-overflowing tube is communicated with outer water tank bottom after connecting an excessive vapour cooler.