CN213178420U

CN213178420U - Clean efficient wood-burning fireplace

Info

Publication number: CN213178420U
Application number: CN202021770178.1U
Authority: CN
Inventors: 张家华
Original assignee: Cangzhou Fangzhou Metal Products Co ltd
Current assignee: Cangzhou Fangzhou Metal Products Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-05-11
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a clean and efficient wood-burning fireplace, which comprises a fireplace outer frame, an air supply system and a burning accessory, wherein the air supply system forms tertiary air supply; the outer frame of the fireplace comprises a closed frame body formed by a doorframe, a left side plate, a furnace cap, a back, a right side plate and a furnace bottom; the third air supply comprises basic air supply, sectional combustion air supply and air curtain air supply, and the air supply system comprises an air inlet box, a rear lining plate, a secondary air inlet box and an air curtain; the air inlet box and the rear lining plate are arranged on the rear back, the secondary air inlet box is arranged on the rear lining plate, the air curtain is arranged below the furnace cap, two ends of the air curtain are respectively arranged on the rear lining plate and the door frame, the air is supplied by the sectional combustion and is guided in through the secondary air inlet box, and the air is supplied by the air curtain and is guided through the air curtain. Through the sectional combustion, combustible gas and combustible substance are burnt in different levels, and the dust is left in the furnace body as far as possible, so that the atmospheric pollution is reduced.

Description

Clean efficient wood-burning fireplace

Technical Field

The utility model relates to a wood-burning fireplace technical field, especially a clean efficient wood-burning fireplace.

Background

Wood-burning fireplaces have been hot-market domestic heating and decorative furniture products in europe, but market entry requirements are very strict. The existing wood-burning fireplace has the defects of too simple combustion and smoke emission which cannot reach the European Union standard. The latest standard requires that the wood burning fire fireplace sold in the European Union meets the new standard of ECO DESIGN before 1/2022 under the premise of meeting the emission standard of European Union EN 13240:2001+ A2:2004, meets the Regulation of (EU Regulation 2015/1185), and obtains a corresponding certificate. The new standards are more stringent in terms of combustion efficiency, and emission requirements for PM and OGC, do not make technical changes, and cannot enter the international market.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned problem that prior art exists, the utility model provides a clean efficient fires wood fireplace improves combustion efficiency, reduces the particulate matter and discharges. Combustible gas and combustible materials are combusted in a layered mode through the staged combustion, dust is left in the furnace body as much as possible, and pollution to the atmosphere is reduced. Under the condition of not changing the appearance of the furnace body, only the internal structure is improved, and the segmented combustion air supply part is additionally arranged, so that the method is simple and easy to implement.

According to the utility model discloses an aspect provides a clean efficient wood-burning fireplace, its characterized in that includes: the external frame of the fireplace, an air supply system and a combustion accessory, wherein the air supply system forms tertiary air supply.

Preferably, the outer frame of the fireplace comprises a closed frame body formed by a doorframe (2), a left side plate (3), a stove cap (5), a back (8), a right side plate (14) and a furnace bottom (17).

Preferably, the tertiary air supply comprises basic air supply, sectional combustion air supply and air curtain air supply, and the air supply system comprises an air inlet box (11), a rear lining plate (12), a secondary air inlet box (13) and an air curtain (7); air inlet box (11) and back welt (12) set up on back (8), secondary air inlet box (13) set up on back welt (12), and air curtain (7) set up under stove cap (5) and its both ends set up respectively on back welt (12) and door frame (2), and the segmentation burning air supply is leading-in through secondary air inlet box (13), and the air curtain air supply is through air curtain (7) guide.

Preferably, the combustion accessory comprises a furnace door (1), a chimney opening (4), a grate (15) and a firewood blocking frame (18), wherein the furnace door (1) is embedded in the door frame (2) and can be opened and added with firewood according to requirements and closed in the combustion process, the chimney opening (4) is arranged at the top end of the furnace cap (5) and is communicated with an inner cavity of the fireplace through a through hole formed in the air curtain (7), and the grate (15) is supported on the left side plate (3), the right side plate (14) and the back (8) and is used for placing wood for combustion; the firewood blocking frame (18) is arranged on one side of the grate (15) close to the furnace door (1); basic air supply enters from the lower part of the furnace door (1) and reaches the space below the grate (15), then upwards passes through the grate (15) and enters the combustion zone to form primary combustion, and smoke generated in the combustion zone is upwards discharged through the chimney port (4).

Preferably, air or oxygen enters a first interlayer between the rear lining plate (12) and the back (8) from the air inlet box (11), then one part of air enters the secondary air inlet box (13) to form segmented combustion air supply, and the other part of air forms air curtain air supply; the sectional combustion air supply enters the combustion zone from the lower part and the upper part of the secondary air inlet box (13) respectively to form secondary combustion and tertiary combustion.

Preferably, a second interlayer is arranged between the furnace cap (5) and the air curtain (7), air supplied by the air curtain rises along the first interlayer, enters the second interlayer, travels to the upper part of the inner side of the furnace door (1), flows downwards along the inner side of the furnace door (1), and finally enters the combustion zone for auxiliary combustion.

Preferably, the combustion accessory further comprises a fire baffle (6), and the fire baffle (6) is arranged on the secondary air inlet box (13) and used for increasing the stroke of the flue gas in the furnace body and improving the efficiency.

Preferably, vermiculite (19) is arranged on the other three sides of the grate (15) and is used for heat insulation and temperature increase of a combustion zone and combustion efficiency improvement.

Preferably, the outer frame of the fireplace further comprises a plurality of stove legs (16) arranged below the stove bottom (17) and used for supporting the fireplace.

Preferably, the outer frame of the fireplace further comprises a chimney cover (9) and a heat insulation plate (10), wherein the heat insulation plate (10) is arranged on the back of the back (8) and used for heat insulation.

The utility model has the advantages that:

the utility model discloses clean efficient fires wood fireplace, has improved combustion efficiency, has reduced the particulate matter and has discharged. Combustible gas and combustible materials are combusted in a layered mode through the staged combustion, dust is left in the furnace body as much as possible, and pollution to the atmosphere is reduced. Under the condition of not changing the appearance of the furnace body, only the internal structure is improved, and the segmented combustion air supply part is additionally arranged, so that the method is simple and easy to implement.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram of an explosion of a clean and efficient wood-burning fireplace accessory according to an embodiment of the present invention;

FIG. 2 is a perspective view of a clean, efficient wood-burning fireplace in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of a clean and efficient wood-burning fireplace profile and combustion principles according to an embodiment of the present invention;

FIG. 4 is a schematic view of a basic air supply flow path of a clean and efficient wood-burning fireplace in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of a staged combustion air supply flow path of a clean and efficient wood-burning fireplace in accordance with an embodiment of the present invention;

fig. 6 is a schematic view of an air curtain air supply flow path of a clean and efficient wood-burning fireplace according to an embodiment of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, which are not intended to limit the scope of the invention.

Referring to fig. 1-3, the clean, efficient wood-burning fireplace of this embodiment includes: the fireplace outer frame comprises a fireplace outer frame, an air supply system and a combustion accessory, wherein the fireplace outer frame comprises a closed frame body formed by a doorframe 2, a left side plate 3, a furnace cap 5, a back 8, a right side plate 14 and a furnace bottom 17; the outer frame can also comprise a chimney cover 9, a heat insulation plate 10 and a plurality of furnace legs 16, wherein the heat insulation plate 10 is arranged on the back of the back 8 for heat insulation; the furnace legs are arranged below the furnace bottom 17 and are used for supporting the fireplace.

The air supply system comprises an air inlet box 11, a rear lining plate 12, a secondary air inlet box 13 and an air curtain 7; an air inlet box 11 and a rear liner plate 12 are arranged on the back 8, a secondary air inlet box 13 is arranged on the rear liner plate 12, and an air curtain 7 is arranged below the furnace cap 5 and two ends of the air curtain are respectively arranged on the rear liner plate 12 and the door frame 2.

The combustion accessories can comprise a furnace door 1, a chimney opening 4, a fire baffle plate 6, a grate 15, a firewood baffle frame 18 and vermiculite 19, wherein the furnace door 1 is embedded in the door frame 2 and can be opened and added with firewood according to requirements and closed in the combustion process, the chimney opening 4 is arranged at the top end of the furnace cap 5 and is communicated with the inner cavity of the fireplace through a through hole formed in the air curtain 7, and the grate 15 is supported on the left side plate 3, the right side plate 14 and the back 8 and is used for placing wood for combustion; the firewood blocking frame 18 is arranged on one side of the grate 15 close to the furnace door 1; basic air supply enters from the lower part of the furnace door 1 and reaches the space below the grate 15, then upwards passes through the grate 15 and enters a combustion area to form primary combustion, smoke generated in the combustion area upwards is discharged through a chimney port 4, and the fire baffle plate 6 is arranged on the secondary air inlet box 13 and used for increasing the stroke of the smoke in the furnace body and improving the efficiency. Vermiculite 19 is arranged on the other three sides of the grate 15 and is used for heat insulation and temperature increase in a combustion area and improving combustion efficiency.

As shown in fig. 3, the structure of the present invention can form multiple air supply, for example, three air supply. The tertiary air supply may include a basic air supply, a staged combustion air supply, and an air curtain air supply. Specifically, the utility model discloses total two air inlets A and B, also total two air supply systems, A department is the basis air supply, and the air inlet of B department divide into the sectional combustion air supply afterwards and the air curtain air supply, and the oxygen supply of fireplace burning is accomplished through these two supply sources. Basic air supply A directly reaches a combustion area through the grate 15, sectional combustion air supply reaches the upper part of the combustion area through air outlets C and D to form 2 times and 3 times of combustion, and the air outlets C and D lead out combustion air through a rear lining plate 12 and a secondary air inlet box 13. The air curtain is used for supplying air and is guided out through the air outlet E, and the generated smoke is discharged from the discharge port E.

More specifically, referring to fig. 3-4, the basic air supply enters through the lower part of the furnace door 1 and reaches the space below the grate 15, then passes through the grate 15 upwards and enters the combustion zone to form primary combustion, and the flue gas generated in the combustion zone is discharged upwards through the chimney port 4.

Referring to fig. 3 and 5, at B is the staged combustion air supply: air is sucked into the furnace body from the air inlet box 11 through the interlayer of the rear lining plate 12 and the back 8 for preheating, firstly reaches the lower part C of the secondary air inlet box 13, is discharged into the furnace body to reach the upper part of a combustion area for secondary combustion, and combustible gas and combustible substances in smoke are combusted; then continuously rises to the upper part D of the secondary air inlet box 13 and is discharged into the furnace body to be combusted with combustible materials and combustible gas for three times, thereby achieving the purposes of improving the combustion efficiency and cleaning the emissions.

Referring to fig. 3 and 6, air is sucked into the furnace body from the air inlet box 11 through the interlayer of the back lining plate 12 and the back 8 for preheating, a part of air continuously rises to enter the interlayer of the furnace cap 5 and the air curtain 7 and finally reaches the upper part of the inner side of the furnace door 1, and the air flows downwards along the inner side of the glass through sufficient heating of the furnace body, so that on one hand, soot on the inner side of the glass is cleaned at high temperature, the glass is kept clean and bright, and on the other hand, the air continuously reaches the combustion zone. Under the condition that the fireplace burns normally, the air inlet at the position A can be closed, the air curtain is used for supplying air to support basic burning, and the effect of reducing PM emission can be achieved.

The utility model realizes multiple air supply, wherein, one air supply is positioned below the fireplace and is used for supporting combustion, and the first air supply in the sectional combustion is used for burning off the smoke, thereby improving the efficiency and reducing the emission of harmful substances; the secondary air supply in the sectional combustion burns the flue gas again, improves the efficiency, reduces the harmful substance and discharges, and the air curtain air supply is used for clean glass, the regional flue gas of combustion-supporting glass. In addition, the vermiculite is arranged on the inner side of the combustion chamber, so that heat insulation and temperature increase are realized, and the combustion efficiency is improved.

The clean and efficient wood-burning fireplace of the embodiment improves the combustion efficiency and reduces the emission of particulate matters. Combustible gas and combustible materials are combusted in a layered mode through the staged combustion, dust is left in the furnace body as much as possible, and pollution to the atmosphere is reduced. Under the condition of not changing the appearance of the furnace body, only the internal structure is improved, and the segmented combustion air supply part is additionally arranged, so that the method is simple and easy to implement.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, a person skilled in the art can change the embodiments and the application ranges according to the embodiments of the present invention, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims

1. A clean, efficient wood-burning fireplace, comprising:

the device comprises a fireplace outer frame, an air supply system and a combustion accessory, wherein the air supply system forms tertiary air supply;

the outer frame of the fireplace comprises a closed frame body formed by a doorframe (2), a left side plate (3), a stove cap (5), a back (8), a right side plate (14) and a furnace bottom (17);

the air supply system comprises an air inlet box (11), a rear lining plate (12), a secondary air inlet box (13) and an air curtain (7); air inlet box (11) and back welt (12) set up on back (8), secondary air inlet box (13) set up on back welt (12), and air curtain (7) set up under stove cap (5) and its both ends set up respectively on back welt (12) and door frame (2), and the segmentation burning air supply is leading-in through secondary air inlet box (13), and the air curtain air supply is through air curtain (7) guide.

2. A clean and efficient wood-burning fireplace as claimed in claim 1 wherein: the combustion accessory comprises a furnace door (1), a chimney opening (4), a grate (15) and a firewood blocking frame (18), wherein the furnace door (1) is embedded in the door frame (2) and can be opened for adding firewood and closed in the combustion process according to the requirement, the chimney opening (4) is arranged at the top end of the furnace cap (5) and is communicated with the inner cavity of the fireplace through a through hole formed in the air curtain (7), and the grate (15) is supported on the left side plate (3), the right side plate (14) and the back (8) and is used for placing wood for combustion; the firewood blocking frame (18) is arranged on one side of the grate (15) close to the furnace door (1); basic air supply enters from the lower part of the furnace door (1) and reaches the space below the grate (15), then upwards passes through the grate (15) and enters the combustion zone to form primary combustion, and smoke generated in the combustion zone is upwards discharged through the chimney port (4).

3. A clean and efficient wood-burning fireplace as claimed in claim 1 wherein: air or oxygen enters a first interlayer between the rear lining plate (12) and the back (8) from the air inlet box (11), then one part of air enters the secondary air inlet box (13) to form segmented combustion air supply, and the other part of air forms air curtain air supply; the sectional combustion air supply enters the combustion zone from the lower part and the upper part of the secondary air inlet box (13) respectively to form secondary combustion and tertiary combustion.

4. A clean and efficient wood-burning fireplace as claimed in claim 3 wherein: and a second interlayer is arranged between the furnace cap (5) and the air curtain (7), air supplied by the air curtain rises along the first interlayer and enters the second interlayer, travels to the upper part of the inner side of the furnace door (1), then flows downwards along the inner side of the furnace door (1), and finally enters a combustion area for auxiliary combustion.

5. A clean and efficient wood-burning fireplace as claimed in claim 4, wherein: the combustion accessory further comprises a fire baffle (6), wherein the fire baffle (6) is arranged on the secondary air inlet box (13) and used for increasing the stroke of the flue gas in the furnace body and improving the efficiency.

6. A clean and efficient wood-burning fireplace as claimed in claim 2 wherein: vermiculite (19) is arranged on the other three sides of the grate (15) and is used for heat insulation and temperature increase of a combustion zone and improvement of combustion efficiency.

7. A clean and efficient wood-burning fireplace as claimed in claim 1 wherein: the outer frame of the fireplace further comprises a plurality of furnace legs (16) which are arranged below the furnace bottom (17) and used for supporting the fireplace.

8. A clean and efficient wood-burning fireplace as claimed in claim 1 wherein: the outer frame of the fireplace further comprises a chimney cover (9) and a heat insulation plate (10), wherein the heat insulation plate (10) is arranged on the back of the back (8) and used for heat insulation.