CN209310118U - Biomass heating furnace - Google Patents

Abstract

The utility model is suitable for combustion furnace technical field, a kind of biomass heating furnace is provided, including furnace body and it is set to the intracorporal burner hearth of furnace, burner hearth is equipped with feed opening, first air inlet, ash hole and smoke outlet, burner hearth includes upper combustion chamber and the lower combustion chamber positioned at upper combustion chamber lower part, feed opening and the first air inlet are communicated with upper combustion chamber, it is equipped between upper combustion chamber and lower combustion chamber for stopping bulk biomass and fritter biomass can be allowed to pass through upper fire-grating, burner hearth is additionally provided with to the second air inlet of lower combustion chamber's air distribution, the bottom of lower combustion chamber is equipped with lower fire grating, ash hole is located at the lower part of lower fire grating, smoke outlet is connected to lower combustion chamber.Biomass heating furnace provided by the utility model, it can the upper combustion chamber of low-temperature burning, lower combustion chamber and the second air inlet for the secondary air distribution of lower combustion chamber by setting, biomass is set to burn at positive in freeze profile, counter burn twice combustion, make biomass full combustion, the generation of nitrogen oxides is reduced simultaneously, reduces environmental pollution.

Description

Biomass heating furnace

Technical field

The utility model belongs to combustion furnace technical field, is to be related to a kind of biomass heating furnace more specifically.

Background technique

The utilization of biomass energy is the problem of world is primarily upon.

Currently, existing biomass combustion stove, there is usually one burner hearth, biomass fuel does not fill also inside Divided combustion is just directly discharged from outlet, and cigarette is more in combustion process, and cumulative, energy loss be not big.

Utility model content

The purpose of this utility model is to provide a kind of biomass heating furnaces, it is intended to solve prior art biomass heating furnace The insufficient technical problem of existing burning.

A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: biomass heating furnace, including furnace body with And it is set to the intracorporal burner hearth of the furnace, the burner hearth is equipped with feed opening, the first air inlet, ash hole and smoke outlet, the furnace Thorax includes upper combustion chamber and the lower combustion chamber positioned at the upper combustion chamber lower part, the feed opening and first air inlet with The upper combustion chamber communicates, and is equipped between the upper combustion chamber and the lower combustion chamber for stopping bulk biomass and can allow Fritter biomass is additionally provided with by upper fire-grating, the burner hearth to the second air inlet of lower combustion chamber's air distribution, the lower burning The bottom of room is equipped with lower fire grating, and the ash hole is located at the lower part of the lower fire grating, and the smoke outlet and the lower combustion chamber connect It is logical.

Further, the volume of the lower combustion chamber gradually becomes smaller from top to bottom.

Further, the lower combustion chamber is up big and down small tetragonous bench-type space structure.

Further, the upper fire-grating passes through the burner hearth and in a row spaced heat exchanging water pipe to be several.

Further, the burner hearth further includes the expansion chamber being connected to the lower combustion chamber, and the expansion chamber is located at described The side of upper combustion chamber and the lower combustion chamber, the top of the expansion chamber are communicated with the smoke outlet.

Further, several heat exchanger tubes are equipped in the expansion chamber.

Further, the bottom of the expansion chamber is equipped with the first cleaning door.

Further, the top of the expansion chamber is equipped with the second cleaning door.

Further, chimney is equipped at the smoke outlet.

Further, the lower part of the chimney is equipped with third cleaning door.

Biomass heating furnace provided by the utility model, by setting can the upper combustion chamber of low-temperature burning, lower combustion chamber with And the second air inlet for the secondary air distribution of lower combustion chamber, make biomass freeze profile at it is positive burn, it is counter burn twice combustion, make biology Matter full combustion, while the generation of nitrogen oxides is reduced, reduce environmental pollution.

Detailed description of the invention

Fig. 1 is the schematic diagram of internal structure of biomass heating furnace provided by the embodiment of the utility model；

Fig. 2 is the structural schematic diagram of biomass heating furnace provided by the embodiment of the utility model.

In figure: 1- feed opening；The first air inlet of 2-；3- ash hole；4- upper combustion chamber；5- lower combustion chamber；6- upper fire-grating； The second air inlet of 7-；8- lower fire grating；9- expansion chamber；10- heat exchanger tube；The first cleaning door of 11-；The second cleaning door of 12-；13- cigarette Chimney；14- third cleaning door.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

It should be noted that unless otherwise clearly defined and limited, " installation ", " connected ", " fixation ", " are set " connection " Set " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In addition, " multiple ", " several " are meant that two or more, unless Separately there is clearly specific restriction.

Referring to Figure 1 to Fig. 2, now the embodiment of biomass heating furnace provided by the utility model is illustrated.Biology Matter heating stove, including furnace body and be set to the intracorporal burner hearth of furnace, the burner hearth be equipped with addition biomass feed opening 1, first enter the wind Mouth 2, the ash hole 3 and smoke outlet for removing burnning ash.

Burner hearth includes upper combustion chamber 4 and the lower combustion chamber 5 positioned at 4 lower part of upper combustion chamber, upper combustion chamber 4 and lower burning It is separated between room 5 by upper fire-grating 6, the biomass of bulk can be blocked in upper combustion chamber 4 by upper fire-grating 6, raw to bulk After substance combustion is small, fritter biomass can be entered in lower combustion chamber 5 by upper fire-grating 6.

Feed opening 1 and the first air inlet 2 are communicated with upper combustion chamber 4 respectively, and the bulk biomass added from feed opening 1 is direct It is added into upper combustion chamber 4, an air distribution of the first air inlet 2 is introduced into upper combustion chamber 4, can pass through setting first The openings of sizes or intake velocity of air inlet 2 make upper combustion chamber 4 be in low-temperature burning.Burner hearth is additionally provided with matches to lower combustion chamber 5 The bottom of second air inlet 7 of wind, lower combustion chamber 5 is equipped with lower fire grating 8, and ash hole 3 is located at the lower part of lower fire grating 8, lower combustion chamber 5 Burnning ash pass through lower fire grating 8 after be pooled at ash hole 3.Smoke outlet is connected to lower combustion chamber 5.

When using biomass heating furnace provided by the embodiment of the utility model, biomass is divided into twice combustion in burner hearth, It is burnt in upper combustion chamber using anti-, is burnt in lower combustion chamber using positive, keep biomass combustion more abundant.Wherein upper combustion chamber fires Low-temperature burning is used when burning, and burning slagging can be prevented by low-temperature burning, avoid burner hearth is airtight from being unable to normal combustion, may be used also With generation nitrogen oxides few as far as possible, environmental pollution is reduced.When lower combustion chamber burns, by adding the second air inlet to lower combustion It burns room and forms secondary air distribution, biomass and fuel gas in lower combustion chamber is promoted more fully to burn.

Biomass heating furnace provided by the embodiment of the utility model, can the upper combustion chamber of low-temperature burning, lower combustion by setting Burn room and the second air inlet for the secondary air distribution of lower combustion chamber, make biomass freeze profile at it is positive burn, it is counter burn twice combustion, Make biomass full combustion, while reducing the generation of nitrogen oxides, reduces environmental pollution.

Referring to Figure 1 and Fig. 2, as a kind of specific embodiment of biomass heating furnace provided by the utility model, There are two two air inlets 7 tools, and the second air inlet 7 is connected by air duct with the air outlet being set in lower combustion chamber 5, and air outlet is more It is a, and these air outlets are evenly distributed on 5 inner wall of lower combustion chamber, more preferably to give 5 air feed of lower combustion chamber, make lower combustion chamber 5 Interior biomass and combustible gas full combustion.

Referring to Figure 1 and Fig. 2, as a kind of specific embodiment of biomass heating furnace provided by the utility model, under The volume of combustion chamber 5 gradually becomes smaller from top to bottom and lower combustion chamber 5 is larger close to one end of upper combustion chamber 4, far from upper combustion chamber 4 one end is smaller.Optionally, lower combustion chamber 5 can be funnel-shaped space structure or the space structure of falling triangular pyramid etc..

Biomass fuel is become smaller by bulk after primary combustion, is fallen into lower combustion chamber 5 by the gap of upper fire-grating 6 and is continued Burning.Lower combustion chamber 5 uses the fuel of the not no completely burned of upper combustion chamber 4, and fixed carbon is more, necessary to full combustion There are certain fuel bed depth (phenomena such as burning zone is too thin to may cause the fire extinguishing of lower combustion chamber 5, and fuel fires not to the utmost), Cai Nengbao Lower hearth normal combustion is demonstrate,proved, to avoid waste of fuel, improves biomass economy rate.Volume is set certainly for lower combustion chamber 5 thus Gradually smaller space structure under above, this structure can well solve the too thin problem of 5 burning zone of lower combustion chamber, in this way Biomass fuel in lower combustion chamber 5 suitably collects from bottom to top, thickens burning zone, guarantees lower hearth normal combustion, avoids Waste of fuel.

Referring to Figure 1, as a kind of specific embodiment of biomass heating furnace provided by the utility model, lower combustion chamber 5 be up big and down small tetragonous bench-type space structure, in order to manufacture.

Referring to Figure 1, as a kind of specific embodiment of biomass heating furnace provided by the utility model, upper fire-grating 6 Burner hearth and the spaced heat exchanging water pipe of the row of changing into are passed through to be several.Heat exchanging water pipe passes through burner hearth, and heat exchange is completed in burner hearth And play the role of fire grate, it kills two birds with one stone, the water in heat exchanging water pipe can do manual labour to be used with water or heating water etc..

Referring to Figure 1, as a kind of specific embodiment of biomass heating furnace provided by the utility model, burner hearth is also wrapped The expansion chamber 9 being connected to lower combustion chamber 5 is included, expansion chamber 9 is located at the side of upper combustion chamber 4 and lower combustion chamber 5, the top of expansion chamber 5 Portion is communicated with smoke outlet.By setting expansion chamber 9, relatively clean flue gas can be made to flow out from smoke outlet, and impurity particle etc. is then It settles and gathers together in expansion chamber 5.The head end of expansion chamber 9 is connected to lower combustion chamber 5, the end of expansion chamber 9 (i.e. top) with Smoke outlet connection.

Referring to Figure 1, as a kind of specific embodiment of biomass heating furnace provided by the utility model, expansion chamber 9 For inverted L-shaped space air channel structure, expansion chamber 9 is separated by partition or water jacket with upper combustion chamber 4, and the bottom of expansion chamber 9 is (i.e. The head end of expansion chamber 9) it is connected to lower combustion chamber 5, the flue gas of lower combustion chamber 5 is flowed into expansion chamber 9, is circulated upwards, is passed through row Mouth discharge.Smoke outlet is connected to the end of expansion chamber 9, and the top of upper combustion chamber 4 is arranged in smoke outlet, so that flue gas is in burner hearth Interior abundant circulation is then exhausted from after carrying out sufficient heat exchange.

Referring to Figure 1, as a kind of specific embodiment of biomass heating furnace provided by the utility model, expansion chamber 9 The interior several heat exchanger tubes 10 being equipped with across expansion chamber 9, in order to the abundant use to 9 heat of expansion chamber.It can be in heat exchanger tube 10 Logical heat-exchanging water or recuperated gas.

Fig. 2 is referred to, as a kind of specific embodiment of biomass heating furnace provided by the utility model, expansion chamber 9 Bottom be equipped with the first cleaning door 11, in order to which client clears up the dust stratification in expansion chamber 9.

It sinks referring to Figure 1 with Fig. 2 as a kind of specific embodiment of biomass heating furnace provided by the utility model The top for dropping room 9 is equipped with the second cleaning door 12, in order to which dust stratification of the client to 9 top of expansion chamber is cleared up.

It is arranged referring to Figure 1 with Fig. 2 as a kind of specific embodiment of biomass heating furnace provided by the utility model Chimney 13 is equipped at mouth.

Fig. 2 is referred to, as a kind of specific embodiment of biomass heating furnace provided by the utility model, chimney 13 Lower part is equipped with third cleaning door 14, in order to deashing processing.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. biomass heating furnace, including furnace body and be set to the intracorporal burner hearth of the furnace, the burner hearth be equipped with feed opening, first into Air port, ash hole and smoke outlet, which is characterized in that the burner hearth include upper combustion chamber and be located at the upper combustion chamber lower part Lower combustion chamber, the feed opening and first air inlet communicate with the upper combustion chamber, the upper combustion chamber and it is described under Be equipped between combustion chamber for stopping bulk biomass and fritter biomass can be allowed by upper fire-grating, the burner hearth be additionally provided with to Second air inlet of lower combustion chamber's air distribution, the bottom of the lower combustion chamber are equipped with lower fire grating, and the ash hole is located at described The lower part of lower fire grating, the smoke outlet are connected to the lower combustion chamber.

2. biomass heating furnace as described in claim 1, which is characterized in that the volume of the lower combustion chamber is from top to bottom gradually Become smaller.

3. biomass heating furnace as claimed in claim 2, which is characterized in that the lower combustion chamber is up big and down small tetragonous Bench-type space structure.

4. biomass heating furnace as described in claim 1, which is characterized in that the upper fire-grating be it is several pass through the burner hearth and Spaced heat exchanging water pipe in a row.

5. biomass heating furnace according to any one of claims 1-4, which is characterized in that the burner hearth further include with it is described under The expansion chamber of combustion chamber, the expansion chamber are located at the side of the upper combustion chamber and the lower combustion chamber, the expansion chamber Top communicated with the smoke outlet.

6. biomass heating furnace as claimed in claim 5, which is characterized in that be equipped with several heat exchanger tubes in the expansion chamber.

7. biomass heating furnace as claimed in claim 5, which is characterized in that the bottom of the expansion chamber is equipped with the first deashing Mouthful.

8. biomass heating furnace as claimed in claim 5, which is characterized in that the top of the expansion chamber is equipped with the second deashing Mouthful.

9. biomass heating furnace according to any one of claims 1-4, which is characterized in that be equipped with chimney at the smoke outlet.

10. biomass heating furnace as claimed in claim 9, which is characterized in that the lower part of the chimney is equipped with third cleaning door.