CN201233167Y

CN201233167Y - Stalk combustion furnace

Info

Publication number: CN201233167Y
Application number: CNU2008200709910U
Authority: CN
Inventors: 李�杰; 芦燕敏; 夏朝勇; 邢俊杰; 李云克; 邸坤; 周云; 孔秀华
Original assignee: Zhengzhou Scientific Research & Design Institute Of State Administration Of Grain Reserve
Current assignee: Zhengzhou Scientific Research & Design Institute Of State Administration Of Grain Reserve
Priority date: 2008-06-13
Filing date: 2008-06-13
Publication date: 2009-05-06
Anticipated expiration: 2018-06-13

Abstract

The utility model discloses a straw combustion furnace which comprises a combustion furnace, a heat exchange chamber and a smoke vent. The combustion furnace is provided with a feed inlet and a cleanout door. A heat exchange pipe is arranged in the heat exchange chamber. A cold air gap and a hot air gap are arranged on the chamber wall. The nozzle of the heat exchange pipe in the heat exchange chamber is communicated respectively with the combustion furnace and the smoke vent. An upper wind screen and a lower wind screen which have smaller size than the cross section of the heat exchange chamber are fixed on the internal wall of the heat exchange chamber between the cold wind gap and the hot wind gap. A baffle plate net is arranged between the two wind screens. The heat exchange pipe is interpenetrated on the wind screens and the baffle plate net, in which way the air can be fully heated. The straw combustion furnace has high heat exchange efficiency and simple structure.

Description

Stalk combustion furance

Technical field

The utility model relates to a kind of stalk combustion furance, especially a kind of high efficiency combustion stove that is fit to provide thermal source to dryer.

Background technology

At present, mostly the dryer thermal source of products such as the oven dry grain of people's widespread usage, medicinal material, tealeaves is to be provided by coal furnace and oil burner, use the combustion wood stove less, its combustion system also will be pulverized after-combustion with fuel wood, these burner complex structures, heat exchange efficiency is low, should not promote the use of in the rural area.

A kind of combustion bavin heat pipe air heating furnace is disclosed in patent 99202236.3, comprise tunnel type bavin combustion chamber, the arch furnace roof of bavin combustion chamber is provided with heat pipe air heat exchanger and tubulation air heat exchanger, during use, fuel wood is put into bavin combustion chamber burning, and indoor heat pipe air heat exchanger and the tubulation air heat exchanger of bavin combustion is heated, under the swabbing action of supporting main induced draft fan, air enters from the air inlet of heat pipe air heat exchanger and tubulation air heat exchanger, is heated the back and discharges from hot air outlet.In this structure, heated air circulates in pipeline always, transmits heat by pipeline and makes atmosphere temperature rising, because narrow in the pipeline, heat-transfer surface is very little, heat fully inadequately, and heat exchange efficiency is lower, and structure complexity comparatively.

The utility model content

The purpose of this utility model provides a kind of simple in structure, heated air fully is heated, the stalk combustion furance that heat exchange efficiency is high.

For achieving the above object, the utility model adopts following technical scheme: comprise combustion furnace, Heat Room and exhaust opening, combustion furnace is provided with charging aperture and ash hole, be provided with heat exchanger tube in the Heat Room, locular wall is provided with cold wind mouth and hot-air mouth, the mouth of pipe of the heat exchanger tube in the described Heat Room is communicated with combustion furnace and exhaust opening respectively, be provided with between cold wind mouth and the hot-air mouth size less than the Heat Room cross section and be fixed in the Heat Room inwall on deep bead and following deep bead, also be provided with the baffling net between two deep beads, described heat exchanger tube interts at deep bead and baffling online.

Described stalk combustion furance is vertical integral structure, is made up of exhaust opening, Heat Room and combustion furnace successively from top to bottom and heat exchanger tube vertically is provided with.

Heat Room invagination drift net is provided with two from top to bottom at least, described each baffling net comprises and is fixed on around the heat exchanger tube and horizontally disposed frame, the parallelpiped that is installed with at least three parallelpipeds and adjacent two baffling nets on frame is provided with the direction difference, and described heat exchanger tube interts between each parallelpiped.

Described upper and lower deep bead is installed in the and arranged on left and right sides of heat exchange locular wall respectively, and the cold wind mouth is located at the top of deep bead, and hot-air mouth is located at down the bottom of deep bead.

Described Heat Room and combustion furnace are sandwich.

Be provided with the air distribution door in the Heat Room bottom.

Described exhaust opening top is provided with chimney, and chimney has the deashing access door.

The outer wall of combustion furnace be provided with air blast and gas outlet by the furnace wall towards fire grate, described fire grate be obliquely installed and fire grate on also be provided with the U-shaped wind-distributing pipe in the place, gas outlet of air blast.

The beneficial effects of the utility model are:

1. using heat exchanger tube to discharge flue gas can make heat exchanger tube rapidly and efficiently heat, then heat whole Heat Room, the heats cold air can increase the heat transfer space of cold air in Heat Room, deep bead and baffling net the flow direction that can change after cold air enters Heat Room is set, make its song to flowing and fully heating, improve heat exchange efficiency.

2. be made as vertical integral type and can make compact conformation, need not air-introduced machine and form from the odd test flue-gas flow and with flue gas and finally discharge out of the furnace.

3. being provided with of the network structure of baffling net and the online parallelpiped of baffling can make the heating air form turbulent flow, and air fully is heated, and improves heat exchange efficiency.

4. deep bead and hot and cold air port being separately positioned on the left and right two ends of Heat Room can make heated air change to flow to, heating more evenly fully, when equipment logotypes such as combustion furnace and dryer, the corresponding setting of air-introduced machine with dryer with hot-air mouth, can twitch air and constantly enter into the Heat Room heating from the cold wind mouth, discharge from hot-air mouth again, for dryer provides thermal source.

The sandwich of Heat Room and combustion furnace can better be incubated, heat build-up.

6. open or close the air distribution door and can circulate or stop cool ambient air, like this, just can regulate the temperature that adds hot-air.

7. chimney is convenient to smoke evacuation, and the setting of deashing access door can be so that the cigarette ash of cleaning exhaust opening.

8. the U-shaped wind-distributing pipe is set on the fire grate wind of air blast is blown into along wind-distributing pipe, make the easier burning of stalk or rice husk.

Description of drawings

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

Fig. 2 is the A-A cutaway view shown in Fig. 1;

Fig. 3 is the B-B cutaway view shown in Fig. 1

The specific embodiment

By Fig. 1, Fig. 2 and stalk combustion furance shown in Figure 3 form by exhaust opening 2, Heat Room 3 and combustion furnace 12 successively from top to bottom and the three for vertical integral structure; Heat Room 3 is sandwich with combustion furnace 12, and the furnace wall of combustion furnace 12 is provided with charging aperture 11, ash mouth 8 and air blast 7, is tiltedly installed with fire grate 10 in the stove, is provided with U-shaped wind-distributing pipe 9 in place, air blast 7 gas outlets on the fire grate 10; Vertically be provided with some heat exchanger tubes 4 in the described Heat Room 3, the top of Heat Room 3 one sides is provided with cold wind mouth 15, the opposite side bottom is provided with hot-air mouth 6, cold wind mouth and hot-air mouth place more than 6 below 15 also is installed with size respectively less than deep bead 14B on Heat Room 3 cross sections and following deep bead 14A in Heat Room 3, last, following deep bead 14B, also be installed with some baffling nets 5 between the 14A, described each baffling net includes and is fixed on around the heat exchanger tube 4 and horizontally disposed frame 17, the parallelpiped that is installed with some parallelpipeds and adjacent baffling net on frame 17 is provided with the direction difference, be arranged alternately successively, like this, can make heated air form turbulent flow, fully heat exchange, described heat exchanger tube 4 interts successively into goes up deep bead 14B, between the parallelpiped of baffling net 5 and among the following deep bead 14A, the bottom of Heat Room 3 also is provided with air distribution door 13; Exhaust opening 2 tops are provided with chimney 16, and chimney 16 has deashing access door 1; The mouth of pipe of heat exchanger tube 4 is communicated with combustion furnace 12 with exhaust opening 2 respectively in the described Heat Room 3.

During use, with stalk, fuel such as hay are put into charging aperture 11, it is dropped on the fire grate 10, fight then and start air blast 7, the wind of air blast 7 blows fuel by U-shaped wind-distributing pipe 9 fully burns it, flue gas is arranged into and is discharged from chimney 16 through Heat Room 3 and final exhaust opening 2 backs that lead to behind the heat exchanger tube 4, flue gas also makes in the Heat Room 3 when discharging and heats up, when equipment logotypes such as stalk combustion furance and dryer, can be with the air-introduced machine and hot-air mouth 6 corresponding settings of dryer, twitch air and constantly enter into Heat Room 3 from cold wind mouth 15, flow downward after the stopping of deep bead 14B on the process, process baffling net 5 forms turbulent flows and fully heating, walks around down deep bead 14A again and also finally discharges from hot-air mouth 6, for dryer provides thermal source.Certainly, also switch air distribution door 13 uses convenient to regulate wind-warm syndrome as required.

Claims

1. stalk combustion furance, comprise combustion furnace, Heat Room and exhaust opening, combustion furnace is provided with charging aperture and ash hole, be provided with heat exchanger tube in the Heat Room, locular wall is provided with cold wind mouth and hot-air mouth, it is characterized in that: the mouth of pipe of the heat exchanger tube in the described Heat Room is communicated with combustion furnace and exhaust opening respectively, be provided with between cold wind mouth and the hot-air mouth size less than the Heat Room cross section and be fixed in the Heat Room inwall on deep bead and following deep bead, also be provided with the baffling net between two deep beads, described heat exchanger tube interts at deep bead and baffling online.

2. stalk combustion furance as claimed in claim 1 is characterized in that: described stalk combustion furance is vertical integral structure, is made up of exhaust opening, Heat Room and combustion furnace successively from top to bottom and heat exchanger tube vertically is provided with.

3. stalk combustion furance as claimed in claim 2, it is characterized in that: Heat Room invagination drift net is provided with two from top to bottom at least, described each baffling net comprises and is fixed on around the heat exchanger tube and horizontally disposed frame, the parallelpiped that is installed with at least three parallelpipeds and adjacent two baffling nets on frame is provided with the direction difference, and described heat exchanger tube interts between each parallelpiped.

4. as claim 1 or 2 or 3 described stalk combustion furances, it is characterized in that: described upper and lower deep bead is installed in the and arranged on left and right sides of heat exchange locular wall respectively, and the cold wind mouth is located at the top of deep bead, and hot-air mouth is located at down the bottom of deep bead.

5. stalk combustion furance as claimed in claim 4 is characterized in that: described Heat Room and combustion furnace are sandwich.

6. stalk combustion furance as claimed in claim 5 is characterized in that: be provided with the air distribution door in the Heat Room bottom.

7. stalk combustion furance as claimed in claim 6 is characterized in that: described exhaust opening top is provided with chimney, and chimney has the deashing access door.

8. as each described stalk combustion furance of claim 1-3, it is characterized in that: the outer wall of combustion furnace be provided with air blast and gas outlet by the furnace wall towards fire grate, described fire grate be obliquely installed and fire grate on also be provided with the U-shaped wind-distributing pipe in the place, gas outlet of air blast.