CN2300823Y

CN2300823Y - Three-chamber normal and back combustion coal stove for cooking and warming

Info

Publication number: CN2300823Y
Application number: CN 97219203
Authority: CN
Inventors: 张意志
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-19
Filing date: 1997-06-19
Publication date: 1998-12-16
Anticipated expiration: 2007-06-19

Abstract

The utility model relates to a three-chamber normal and back combustion coal stove for cooking and warming, belonging to the field of mechanical engineering. The combustion coal stove solves the problems of the existing homemade heating stove that the heating effect and the cooking effect can not be satisfied simultaneously. The utility model is composed of a stove body, a stove lining, a throat pipe, a spiral plate type heat exchanger, etc. The three-chamber normal and back combustion coal stove for cooking and warming comprises an upper burning chamber, a lower burning chamber and a spiral buffering burning chamber. The normal and back combustion principle and the rotating combustion principle are applied. The utility model has the advantages of coal saving, smoke removing and high thermal efficiency. The cooking function and the heating function can be respectively strengthened through transmitting the normal and back burning functions of the upper burning chamber, and both the heating effect and the cooking effect are good. The stove has the advantages of simple structure and low manufacturing cost. All the honeycomb briquette, the block coal and the wet and loose coal can be used.

Description

Three combustion chamber positive and negative burning heating-cooking coal furnaces

The utility model is a kind of three combustion chamber positive and negative burning heating-cooking coal furnaces.Belong to mechanical engineering field.

At present, in the vast urban and rural residents district that fails to realize central heating, beginning generally use a kind of can cooking again can heating the family expenses Indigenous heating stove.By literature search and fact finding, though find that the existing type of furnace is many, ubiquity and is not that coal consumption height, environmental-protecting performance are poor, is exactly heating, two kinds of effects of cooking can not the good disadvantage of tool.

Therefore, be necessary to design a kind of heating, the good highly effective energy-conserving environmental-protecting type novel coal stove of two kinds of effect tools of cooking.In order to realize this purpose, the utility model spy has proposed a kind of three combustion chamber positive and negative burning heating-cooking coal furnaces.

Of the present utility model theing contents are as follows: (seeing accompanying drawing)

The utility model is a domestic heating cooking coal furnace, is made up of water sleeve type body of heater, suspension type flue, trunnion, chimney, spiral heat exchanger, last grate, following grate, fire door, shoot door, cleanout door, ashpit, push-pull valve, bell etc.Suspension type flue inner casing and last grate constitute not only can just burn but also can instead burn go up the combustion chamber; The flue below constitutes the following combustion chamber that can only just burn by body of heater lower inner shell and following grate; Helical fin on flue shell and the shell and upper of furnace body inner casing constitute spiral buffering combustion chamber.During heating, open cleanout door and bell, promote the plate of push-pull valve on the trunnion, open the port of buffering combustion chamber and chimney, close the port of closing combustion chamber and chimney.Coal-fired last combustion indoor through preheating, baking, do slip, the downward anti-burning in gasification back; Through burning for the first time, eliminated black smoke.Not clean-burning scorching hot carbon piece falls into down the combustion chamber by last grate, upwards carries out the burning second time, thereby makes fire coal obtain abundant burning.Through spiral buffering combustion chamber, rotary combustion under the effect of helical fin formed eddy current, sedimentation flue dust, augmentation of heat transfer after the positive and negative seedling that makes a fire was collided with flue gas.Flue gas flows into chimney by the port of top, buffering combustion chamber through trunnion, through a helical duct of chimney inside spin plate type heat exchanger, makes axial flow from bottom to top, then flows out from throat.The cold water of heating system flows into furnace water jacket earlier through body of heater below water supply connector, by the cross over pipe flue water jacket of flowing through, flow into another helical duct of chimney inside spin plate type heat exchanger again through the trunnion water jacket, fully carry out becoming high-temperature-hot-water after the heat exchange by partition, then the water out adapter from the chimney top flows back to heating system.During cooking, twitch the push-pull valve plate, open the port of combustion chamber and chimney, close the port of buffering combustion chamber and chimney, thereby make the combustion chamber have sufficient suction; Open fire door, make to have sufficient fresh air below the grate through preheating; At this moment, firing indoor fire coal on begins upwards just to burn rapidly; Quick combustion, flare concentrates on the bottom of a pan, makes the bottom of a pan strengthened by heating power, thereby has strengthened the cooking function.

This type of furnace has special constructions such as the water sleeve type suspension type flue that has helical fin, spiral heat exchanger, and positive and negative burning second-time burning principle and rotary combustion principle have been used, compare with the existing type of furnace, not only have economize on coal, smoke elimination, dedusting, heat imitates high characteristics, and by changing the positive and negative burning function that goes up the combustion chamber, strengthened cooking, heating function respectively, accomplished that heating, two kinds of effect tools of cooking are good.This furnace type structure is simple, low cost of manufacture, and honeycomb briquette, lump coal, the wet coal that looses all can use.

Accompanying drawing is a cutaway view of the present utility model.

Execute example: (seeing accompanying drawing)

This coal furnace by water supply connector (3), cleanout door (4), down grate (5), fire door (6), communicating pipe (2), go up grate (7), flue (8), body of heater (9), bell (10), trunnion (11), push-pull valve (12), ashpit (1), chimney (13), spiral heat exchanger (14), shoot door (15), water out adapter (16), form.It is contained in carries out work in the domestic heating system.The outstanding top, body of heater (9) center that is welded in of flue (8), two parts tops are welded together, and are stamped movable bell (10), and the mutual UNICOM of water jacket.Be welded with communicating pipe (2) between flue (8) bottom and the body of heater (9), be welded with several helicoid fins on flue (8) shell.Last grate (7) is by the supporting nail supporting of flue (8) inner casing bottom, and following grate (4) is by the supporting nail supporting at body of heater (9) inner casing middle part.Body of heater (9) middle and lower part is welded with fire door (6) and cleanout door (4).The two ends weldering is dead up and down for a helical duct of the spiral heat exchanger (14) in the chimney (13), and as the flowing water passage, another helical duct is both ends open up and down, as exhaust gases passes.The outer ring of spiral heat exchanger (14) and chimney (13) inner casing weld at tangent place, and flowing water passage and chimney (13) water jacket is interconnected.Body of heater (9) is connected by trunnion (11) weldering with chimney (13), and the water jacket of trunnion (11) is communicated with body of heater (9) water jacket and chimney (13) water jacket.Two exhaust gases passes are arranged in the trunnion (11), and one communicates with the combustion chamber of going up in the flue (8), and another fires the chamber with the outer spiral buffering of flue (8) and communicates.Push-pull valve (12) is welded in trunnion (11) middle part, and opening and closing of two flues of control realizes heating, two kinds of function conversion of cooking.Ashpit (1) is welded in trunnion (11) bottom.Water out adapter (16) is welded in chimney (13) water jacket topmost, is connected with the outlet pipe of heating system; Water supply connector (3) is welded in the foot of body of heater (9) water jacket, is connected with the return pipe of heating system.

Claims

1, a kind of three combustion chamber positive and negative burning heating-cooking coal furnaces are made up of water sleeve type body of heater, flue, trunnion, chimney, spiral heat exchanger and grate, push-pull valve etc., and it is contained in carries out work in the domestic heating system, it is characterized in that:

A, outstanding top, body of heater center, the mutual UNICOM of water jacket of being welded in of flue;

B, flue inner casing and last grate constitute not only can just burn but also can instead burn go up the combustion chamber;

Be welded with several helicoid fins on c, the flue shell;

D, helicoid fin and flue shell, body of heater inner casing constitute spiral buffering combustion chamber;

E, push-pull valve are installed in the trunnion middle part;

Afterheat heat exchanger in f, the chimney is a spiral heat exchanger;

Two helical ducts of g, spiral heat exchanger, a two ends weldering is dead, a both ends open;

H, spiral heat exchanger weld together at tangent place and the chimney with the chimney inner casing, and water jacket is interconnected.