CN215675306U

CN215675306U - Hot return air structure at front end of fire oven

Info

Publication number: CN215675306U
Application number: CN202121039791.0U
Authority: CN
Inventors: 洪永华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-01-28
Anticipated expiration: 2031-05-17

Abstract

The utility model provides a front-end hot air return structure of a warming oven, which comprises an air return structure body, wherein the air return structure body comprises an upper cover of the warming oven, an air return pipe, a feeding hopper, a smoke exhaust pipe and a base, the upper cover of the warming oven is arranged at the bottom end of the upper cover of the warming oven, the upper cover of the warming oven is sleeved at the top end of the warming oven, the air return pipe is arranged at one side of the warming oven, a feeding hole is arranged in the middle of the air return pipe, a lower cover of the warming oven is arranged at the bottom end of the warming oven, an outer barrel is arranged at the outer side of the warming oven, the feeding hopper is arranged at one side of the outer barrel, a smoke exhaust device is arranged at the other side of the outer barrel, a flue change-over switch is arranged at the side edge of the smoke exhaust device, the smoke exhaust pipe is arranged at the top end of the smoke exhaust pipe, a warming oven core bottom plate is arranged at the bottom end of the warming oven core bottom plate, and an upper ring of the base is arranged at the front-end of the warming oven, the defects of heat loss and low front-end temperature are overcome.

Description

Hot return air structure at front end of fire oven

Technical Field

The utility model relates to the technical field of air return structures, in particular to a hot air return structure at the front end of a roasting furnace.

Background

The baking stove is a stove used in winter in south, is used for keeping warm, and can be widely used in various civil and public buildings such as houses, offices, hotels, hospitals, schools, simple movable houses and the like.

The conventional oven has the following disadvantages: 1: the heat obtained by burning the fuel such as wood, coal and the like is directly discharged out of the room through the flue, causing a great loss of heat. 2: the front end of the fire furnace, namely the material inlet end, has no heat to pass through, so that the temperature of the front end is low.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a hot air return structure at the front end of a roasting furnace, which aims to solve the problems in the background art, has better heating effect and overcomes the defects of heat loss and low front end temperature.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a hot air return structure at the front end of a fire furnace comprises an air return structure body, wherein the air return structure body comprises a furnace upper cover, an air return pipe, a charging hopper, a smoke exhaust pipe and a base, the bottom end of the upper cover of the stove is provided with an upper cover of the stove core, the upper cover of the stove core is sleeved at the top end of the stove core, an air return pipe is arranged at one side of the furnace core, a charging opening is arranged in the middle of the air return pipe, a furnace core lower cover is arranged at the bottom end of the furnace core, an outer barrel is arranged on the outer side of the furnace core, a loading hopper is arranged on one side of the outer barrel, a smoke exhaust device is arranged on the other side of the outer barrel, a flue transfer switch is arranged on the side of the smoke exhaust device, a smoke exhaust pipe is arranged on the top end of the smoke exhaust device, a furnace core bottom plate is arranged at the bottom end of the outer barrel, a base upper ring is arranged at the bottom end of the furnace core bottom plate, the inner part of the base upper ring is provided with an ash bucket, and the bottom end of the base upper ring is provided with a base.

In a preferred embodiment of the present invention, the stove upper cover, the wick upper cover, the smoke exhaust device and the wick lower cover are all welded to the outer tub portion in a seamless manner.

In a preferred embodiment of the present invention, a combustion chamber is disposed inside the furnace core.

In a preferred embodiment of the present invention, the return duct is provided with two return ducts.

As a preferred embodiment of the present invention, one side of the outer tub is opened with a hole and communicated with the inside of the hopper.

In a preferred embodiment of the present invention, the return air pipes are respectively welded to the upper core cover and the lower core cover in a seamless manner.

The utility model has the beneficial effects that: the utility model relates to a hot air return structure at the front end of a warming furnace, which comprises an air return structure body, wherein the air return structure body comprises a furnace upper cover, a furnace core upper cover, an air return pipe, a charging opening, an outer barrel, a charging hopper, a furnace core bottom plate, an ash hopper, a base upper ring, a smoke exhaust device, a flue change-over switch, a furnace core lower cover, a furnace core and a smoke exhaust pipe.

1. According to the hot air return structure at the front end of the fire furnace, the smoke exhaust channel is prolonged and passes through the front end of the furnace, namely, the part where heat is difficult to reach is passed through, so that the defects of heat loss and low front end temperature are overcome, the heating effect is better, and the defects of heat loss and low front end temperature are overcome.

2. The hot air return structure at the front end of the fire furnace has better heating effect and is very practical for heating rural families in winter.

Drawings

FIG. 1 is a schematic structural diagram of the external form of a hot air return structure at the front end of a roasting furnace according to the present invention;

FIG. 2 is an exploded view of a hot-return air structure at the front end of a furnace according to the present invention;

in the figure: 1. an upper cover of the stove; 2. an upper cover of the furnace core; 3. a return air duct; 4. a feed inlet; 5. an outer tub; 6. a hopper; 7. a core floor; 8. an ash hopper; 9. a base; 10. the base is provided with an upper ring; 11. a fume extractor; 12. a flue transfer switch; 13. a furnace core lower cover; 14. a furnace core; 15. a smoke exhaust pipe.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Referring to fig. 1 to 2, the present invention provides a technical solution: a hot air return structure at the front end of a warming furnace comprises an air return structure body, wherein the air return structure body comprises a furnace upper cover 1, an air return pipe 3, a feeding hopper 6, an exhaust pipe 15 and a base 9, a furnace core upper cover 2 is arranged at the bottom end of the furnace upper cover 1, the furnace core upper cover 2 is sleeved at the top end of a furnace core 14, the air return pipe 3 is arranged at one side of the furnace core 14, a feeding opening 4 is formed in the middle of the air return pipe 3, a furnace core lower cover 13 is arranged at the bottom end of the furnace core 14, an outer barrel 5 is arranged at the outer side of the furnace core 14, the feeding hopper 6 is arranged at one side of the outer barrel 5, a smoke exhaust device 11 is arranged at the other side of the outer barrel 5, a flue change-over switch 12 is arranged at the side edge of the smoke exhaust device 11, the exhaust pipe 15 is arranged at the top end of the smoke exhaust device 11, a furnace core bottom plate 7 is arranged at the bottom end of the furnace core bottom plate 7, a base upper ring 10 is arranged at the bottom end of the furnace core bottom plate 7, an ash bucket 8 is arranged in the base upper ring 10, and a base 9 is arranged at the bottom end of the base upper ring 10.

In a preferred embodiment of the present invention, the stove upper cover 1, the stove core upper cover 2, the smoke exhaust device 11 and the stove core lower cover 13 are all welded to the outer tub 5 in a seamless manner, thereby improving the sealing effect.

In a preferred embodiment of the present invention, a combustion chamber is provided inside the furnace core 14, and fuel is heated and combusted in the combustion chamber.

As a preferred embodiment of the present invention, two return air pipes 3 are provided, so as to improve the combustion effect and prevent temperature loss.

In a preferred embodiment of the present invention, the outer tub 5 has a hole formed at one side thereof and communicates with the inside of the hopper 6, and the fuel is introduced into the outer tub 5 from the hopper 6.

In a preferred embodiment of the present invention, the return air duct 3 is welded to the upper core cover 2 and the lower core cover 13 in a seamless manner, so that air can flow inside to reduce loss.

The working principle is as follows: the hot air return structure at the front end of the roasting furnace mainly comprises a furnace upper cover 1, an air return pipe 3, a loading hopper 6, a smoke exhaust pipe 15 and a base 9, when in use, fuel is added into a furnace core 14 from the loading hopper 6, two color lines, namely a red line and a gray line, are arranged on two sides of a flue change-over switch 12, when the flue change-over switch 12 is in a red line state, the fuel is combusted in a combustion bin inside the furnace core 14, generated smoke dust and heat can directly enter the smoke exhaust pipe 15 through a smoke exhaust device 11 and are exhausted to the outside, the furnace is continuously heated for about 5-10 minutes, when the inside of the furnace and the smoke exhaust pipe 15 are preheated and the inside of a smoke pipe is filled with hot air, the flue change-over switch 12 is manually shifted to a vertical state, namely an ash line state displayed on the surface, the smoke dust and heat are sucked to the bottom of the furnace from the air return pipe 3 by utilizing a hot air ascending principle, and then returns to the smoke exhaust pipe 15 from the passage below the flue gas duct changing switch 12 and then is discharged to the outside. Thereby lengthening the heat discharge stroke to reduce heat loss, bringing about temperatures at the front end and the lower part of the furnace, and solving the defects of heat loss and low temperature at the front end.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a hot return air structure of stove front end of warming oneself by a fire, includes return air structure body, its characterized in that: the air return structure body comprises a furnace upper cover (1), an air return pipe (3), a loading hopper (6), a smoke exhaust pipe (15) and a base (9), wherein the bottom end of the furnace upper cover (1) is provided with a furnace core upper cover (2), the furnace core upper cover (2) is sleeved on the top end of a furnace core (14), one side of the furnace core (14) is provided with the air return pipe (3), the middle of the air return pipe (3) is provided with a loading port (4), the bottom end of the furnace core (14) is provided with a furnace core lower cover (13), the outer barrel (5) is installed on the outer side of the furnace core (14), the loading hopper (6) is installed on one side of the outer barrel (5), a smoke exhaust device (11) is installed on the other side of the outer barrel (5), a flue change-over switch (12) is installed on the side of the smoke exhaust device (11), the smoke exhaust pipe (15) is arranged on the top end of the smoke exhaust device (11), the bottom of outer bucket (5) is provided with wick bottom plate (7), base upper ring (10) have been placed to the bottom of wick bottom plate (7), the internally mounted of base upper ring (10) has ash bucket (8), base (9) are installed to the bottom of base upper ring (10).

2. The front end hot air return structure of the roasting furnace as claimed in claim 1, characterized in that: the stove upper cover (1), the stove core upper cover (2), the smoke exhaust device (11) and the stove core lower cover (13) are all welded with the outer barrel (5) in a partially seamless mode.

3. The front end hot air return structure of the roasting furnace as claimed in claim 1, characterized in that: a combustion bin is arranged in the furnace core (14).

4. The front end hot air return structure of the roasting furnace as claimed in claim 1, characterized in that: two air return pipes (3) are arranged.

5. The front end hot air return structure of the roasting furnace as claimed in claim 1, characterized in that: one side of the outer barrel (5) is provided with a hole and communicated with the interior of the charging hopper (6).

6. The front end hot air return structure of the roasting furnace as claimed in claim 1, characterized in that: and the return air pipe (3) is respectively welded with the furnace core upper cover (2) and the furnace core lower cover (13) in a seamless manner.