CN2804666Y

CN2804666Y - Stove with cyclic external furnace flue

Info

Publication number: CN2804666Y
Application number: CN 200420150577
Authority: CN
Inventors: 严凤权
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-15
Filing date: 2004-10-15
Publication date: 2006-08-09
Anticipated expiration: 2014-10-15

Abstract

The utility model discloses a stove with a cyclic outer flue, which comprises a stove core, an air return ring, an air return box, a chimney mouth and a stove cylinder, wherein the outer margin of the air return ring is appressed with the stove cylinder and the air return ring is provided with a vent. The stove cylinder is provided with an opening, and the air return box is connected with the outer flue connected with the chimney mouth. Hot fume generated by combustion needs to be circulated in a stove body for multiple turns before exhausted out from a chimney, so as to bring good heat insulation and obvious heating effect in winter. Besides, excessive waste fume can be prevented from being exhausted out to reduce environmental pollution.

Description

The stove that has the circulation external flue

Technical field: the utility model relates to a kind of stove that has the circulation external flue, belongs to the technical field of stove and accessory.

Background technology: the present coal stove that uses, generally be to utilize the return air channel between combustion chamber and the stove tube to discharge fume, because the hot flue gas of burning directly enters throat from return air channel and discharges, cause heat also to be directly emitted, the thermal efficiency is lower, and contains dust in the flue gas, directly is discharged in the air easily, influence environment, pollute; Many in addition flue dust also can stop up smoke pipe.

Summary of the invention: the purpose of this utility model is: a kind of stove that has the circulation external flue is provided, the hot flue gas that makes coal stove burning enters external flue after around return air channel, behind the circulation certain distance, discharge throat again, the heat that has utilized burning to produce fully heats, heats up indoor, simultaneously external flue can the sedimentation dust, avoids flue dust directly to discharge, stop up smoke pipe.

The utility model is to constitute like this: it comprises combustion chamber (1), Air return ring (2), return air channel (3), throat (4), stove tube (5), Air return ring (2) is placed on the combustion chamber (1), combustion chamber (1) is placed in the stove tube (5), and an opening (9) is arranged on stove tube (5), and opening (9) is communicated with return air channel (3) and outer circulation flue (7), outer circulation flue (7) is looped around on stove tube (5) outer wall, and connects throat (4).Have ventilating opening (6), outer rim in this product near stove tube (5) on Air return ring (2), opening (9) position on the stove tube (5) is lower than throat (4), outer circulation flue (7) is provided with ashpit (8).Because Air return ring (2) outer rim is close to stove tube (5), hot flue gas enters air-intaking box (3) by ventilating opening (6), behind air-intaking box (3) circulation half-turn, enter outer circulation flue (7) again, by outer circulation flue (7) stove is heated rapidly around stove tube (5), outer circulation flue (7) can be around stove tube (5) outer wall half-turn more than one or one, that is to say: outer circulation flue (7) can be one, also can be many, heat reduction along with flue gas, with dust with sedimentation, add and the aperture position on the stove tube (5) can be lower than throat (4) man-hour, and establish ashpit (8) on the cycle flue (7) outside, can avoid dust to stop up smoke pipe like this.

The utility model compared with prior art, structure is simpler, handling ease, can better utilization the heat energy that produces of burning, because the flue gas of heat need could be discharged from chimney after the circulation multi-turn in body of heater, high insulating effect is so the effect of warming is apparent in view, and can avoid more soot emissions, contaminated environment, prevent that smoke pipe from stopping up.

Description of drawings: accompanying drawing 1 is a structural representation of the present utility model; Accompanying drawing 2 is a profile schematic diagram of the present utility model.

The specific embodiment:

Embodiment 1 of the present utility model: it comprises combustion chamber (1), Air return ring (2), return air channel (3), throat (4), stove tube (5), metal Air return ring (2) is placed on the combustion chamber (1), combustion chamber (1) is placed in the stove tube (5), an opening (9) is arranged on stove tube (5), opening (9) is communicated with return air channel (3) and outer circulation flue (7), outer circulation flue (7) connects throat (4), have ventilating opening (6) on the Air return ring (2), outer rim is near stove tube (5), opening (9) position on the stove tube (5) is lower than throat (4), outer circulation flue (7) is provided with ashpit (8), and outer circulation flue (7) is one, establishes ashpit (8) on the cycle flue (7) outside.

Embodiment 2 of the present utility model: it has combustion chamber (1), metal Air return ring (2), return air channel (3), throat (4), stove tube (5), Air return ring (2) is placed on the combustion chamber (1), combustion chamber (1) is placed in the metal furnaces tube (5), and an opening (9) is arranged on stove tube (5), and opening (9) is communicated with return air channel (3), return air channel (3) is communicated with two outer circulation flues (7) that metal tube is made, and outer circulation flue (7) connects throat (4); Outer circulation flue (7) is provided with an ashpit (8).

Claims

1. stove that has the circulation external flue, it comprises combustion chamber (1), Air return ring (2), return air channel (3), throat (4), stove tube (5), Air return ring (2) are placed on the combustion chamber (1), and combustion chamber (1) is placed in the stove tube (5), it is characterized in that: an opening (9) is arranged on stove tube (5), opening (9) is communicated with return air channel (3) and outer circulation flue (7), and outer circulation flue (7) is looped around on stove tube (5) outer wall, and connects throat (4).

2. the stove that has the circulation external flue according to claim 1, it is characterized in that: have ventilating opening (6), outer rim near stove tube (5) on Air return ring (2), opening (9) position on the stove tube (5) is lower than throat (4), outer circulation flue (7) is provided with ashpit (8).

3. the stove that has the circulation external flue according to claim 1 and 2 is characterized in that: outer circulation flue (7) can be around stove tube (5) outer wall half-turn more than one or one.