WO2012148171A1

WO2012148171A1 - Firewood boiler

Info

Publication number: WO2012148171A1
Application number: PCT/KR2012/003193
Authority: WO
Inventors: 김용현
Original assignee: Kim Yong-Hyun
Priority date: 2011-04-29
Filing date: 2012-04-25
Publication date: 2012-11-01
Also published as: KR101094472B1

Abstract

The present invention relates to a firewood boiler comprising: a combustion chamber (20) placed inside a heat insulating body (10), and having a fire box (21) generating flame from the combustion of firewood and combustion gas, and a smoke box (22) formed on the upper side of the fire box (21) for the combustion gas to bypass; a flame induction plate (30) for compartmenting the combustion chamber (20) into the flame box (21) and the smoke box (22); an exhaust flue (40) placed on the upper portion of the heat insulating body (10), for exhaust gas, which passes through the smoke box (22), to be discharged; a heat exchange chamber (50) placed between the heat insulating body (10) and the combustion chamber (20), for storing a heat medium (H); a heat exchange pipe (60), which is placed on the inside surface of the combustion chamber (20) and directly contacting thereto via the flame, connects to the heat exchange chamber (50), and stores the heat medium (H) therein; a bulkhead structure (90) placed at the front side of the smoke box (22), for turning the combustion gas for extended time retention in the smoke box (22), to burn and remove herbage components contained in the combustion gas; a main door (100) placed on the heat insulating body (10) on the front side of the fire box (21), for opening/closing the fire box (21); a subdoor (130) placed on the heat insulating body (10) on the front side of the smoke box (22), for opening/closing the smoke box (22); and a duct portion (140) placed on the heat insulating body (10) between the main door (100) and the subdoor (130), for guiding the heat, smoke, and dust coming out when the main door (100) is opened to the exhaust flue (40), through the subdoor (130).

Description

Firewood Boiler

The present invention relates to a firewood boiler using a firewood (fire wood) as a fuel, and more particularly to a firewood boiler that is easy to maintain and increase the thermal efficiency.

A firewood boiler is a boiler that uses firewood as a fuel, and is widely used in areas where it is difficult to use firewood such as rural areas and mountainous areas, or where electricity, kerosene, or diesel is difficult to use. In particular, in recent years, the reason why oil prices are soaring, is the increasing number of firewood boilers to save fuel costs. Such a coal fired boiler heats the circulating water by the heat of combustion of the firewood and heats it by circulating the living room and the living room.

By the way, the firewood boiler has a short burning time due to the nature of the fuel called firewood, so that the firewood needs to be frequently filled in the firebox for heating, and the firewood is burned every few days and the remaining ashes are removed from the firebox.

However, when the door is opened to inject firewood into the firebox or remove the combustibles, the heat or smoke remaining in the firebox suddenly escapes through the door, and in the process, the user is burned or suffocated by the smoke, and the sparks are ejected. The possibility of fire always occurred.

In addition, since the boiler room in which the firewood boiler is installed is generally narrow, the smoke emitted from the firebox can fill a boiler room quickly, which may cause a dangerous situation. Therefore, when the firewood is put in, the door of the boiler room is opened. In the winter, the boiler room was opened and the firewood was to be endured while enduring the cold.

Also, in the process of removing the combustion material, a lot of dust is ejected through the door, and this dust is very harmful to health if it is drunk.

And because the wood vinegar generated during the combustion process prevents the exhaust flue, there was a problem that the wood vinegar must be removed frequently.

The present invention has been made to solve the above problems, when opening the door to insert the firewood or to remove the combustion material, the heat, smoke, dust, etc. are not ejected from the firebox, the wood vinegar is not generated and maintained It is an object to provide a firewood boiler that is easy to manage.

Another object of the present invention is to provide a firewood boiler which can enable complete combustion to increase thermal efficiency.

In order to achieve the above object, the firewood boiler according to the present invention,

The combustion chamber is installed in the heat insulating body 10, and has a combustion chamber 21 in which firewood is combusted to generate flame and combustion gas, and a combustion chamber 22 formed at an upper side of the combustion chamber 21 to bypass combustion gas. 20; A plate-shaped flame guide plate 30 which divides the combustion chamber 20 into the fire chamber 21 and the combustion chamber 22; An exhaust flue 40 installed at an upper portion of the heat insulation body 10 and through which exhaust gas passing through the combustion chamber 22 is exhausted; A heat exchange chamber 50 installed between the heat insulating body 10 and the combustion chamber 20 and storing a heat medium H; A heat exchange pipe (60) installed on the inner surface of the combustion chamber (20) to be in direct contact with the flame and connected to the heat exchange chamber (50) and storing the heat medium (H); The partition wall structure 90 is installed at the front side of the combustion chamber 22 and pivots the combustion gas to stay in the combustion chamber 22 for a long time to burn off the woody components contained in the combustion gas. Wow; The main door is installed in the heat insulating body 10 on the front side of the firebox 21 to open and close the firebox 21, and the air inlet control plate 101 for adjusting the amount of air flowing into the firebox 21 is installed. 100; In the firewood boiler comprising ;; a sub-door (130) installed in the front heat insulating body (10) of the combustion chamber (22) to open and close the combustion chamber (22);

As installed in the heat insulating body 10 between the main door 100 and the sub-door 130, the heat, smoke and dust coming out when opening the main door 100 through the sub-door 130. And a duct section (140) for guiding the exhaust flue (40); The partition structure (90) has first and second partition walls (91, 92) formed with first and second exhaust spaces (91a) and (92a) spaced apart from the bottom of the combustion chamber (22); An opening 132 is formed at a lower end of the sub-door 130; The duct 140 has a roof 141 formed on the upper side of the main door 100 and a duct hole formed in the roof 141 and communicating with the opening 132 of the sub door 130. 142; characterized in that it comprises a.

In the present invention, the first circulation motor 70 for circulating the heat medium between the heat exchange pipe 60 and the heat exchange chamber (50); And a first controller 80 interlocked with a first temperature sensor 81 for detecting a temperature inside the combustion chamber 22 and controlling an operation of the first circulation motor 70.

In the present invention, as installed in the main door 100, a blower 110 for adjusting the amount of air introduced into the firebox 21; And a second controller 120 linked to the second temperature sensor 121 for generating a corresponding signal for detecting the temperature of the heat medium H to control the operation of the blower 110.

In the present invention, the flame induction plate 30 is installed so that the flame guide interval (S) is formed so that both ends are spaced apart from the inner surface of the combustion chamber (20).

In the present invention, it is provided in the heat exchange chamber 50 further includes a hot water supply pipe 55 for supplying hot water.

According to the present invention, when the door is opened to insert the firewood or remove the combustion material, the heat, smoke, dust, etc. emitted from the firebox is guided to the exhaust flue through the duct part, the subdoor and the partition structure, so that the user It is easy to maintain and prevent direct exposure to smoke and dust.

In addition, firewood can be injected without opening the door of the boiler room where the firewood boiler is installed, which prevents cold exposure in the middle of winter and does not require any work to remove the wood-vinegar solution because no wood-choice solution is generated during combustion. Maintenance is much easier.

In addition, the flame guide plate divides the combustion chamber into a combustion chamber and a combustion chamber, and reburns the combustion gas in the combustion chamber to enable complete combustion, thereby increasing thermal efficiency.

1 is a perspective view of a firewood boiler according to the present invention,

FIG. 2 is a cross-sectional view taken along the line II-II ′ of FIG. 1;

3 is a cross-sectional view along the line III-III 'of FIG.

4 is a view for explaining the flame induction gap formed between the flame induction plate and the combustion chamber in FIG.

5 is a view for explaining a blower in FIG.

FIG. 6 is a view for explaining that when the main door is opened, heat, smoke, and dust are guided to the exhaust flue through the duct part, the subdoor, and the partition structure.

Hereinafter, a firewood boiler according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a firewood boiler according to the present invention, Figure 2 is a cross-sectional view along the line II-II 'of Figure 1, Figure 3 is a cross-sectional view along the line III-III' of FIG.

As shown, the firewood boiler according to the present invention, which is installed in the heat insulating body 10, is formed on the fire chamber 21 and the upper side of the fire chamber 21 that generates a flame and combustion gas firewood. A combustion chamber 20 having a combustion chamber 22 through which combustion gas is bypassed; A plate-shaped flame guide plate 30 which divides the combustion chamber 20 into a fire chamber 21 and a combustion chamber 22; An exhaust flue 40 installed at an upper portion of the heat insulation body 10 and through which exhaust gas passing through the combustion chamber 22 is exhausted; A heat exchange chamber 50 installed between the heat insulating body 10 and the combustion chamber 20, in which the heat medium H is stored; A heat exchange pipe 60 installed on the inner surface of the combustion chamber 20 to be in direct contact with the flame and connected to the heat exchange chamber 50 and storing the heat medium H; A first circulation motor 70 for circulating the heat medium between the heat exchange pipe 60 and the heat exchange chamber 50; A first controller (80) interlocked with a first temperature sensor (81) for detecting a temperature inside the combustion chamber (22) to control an operation of the first circulation motor (70); A barrier rib structure 90 which is installed at the front side of the combustion chamber 22 and which swings the combustion gas to stay inside the combustion chamber 22 for a long time to burn off and remove the grass components contained in the combustion gas; A main door 100 installed at the front side heat insulation body 10 of the firebox 21 to open and close the firebox 21; A blower 110 installed in the main door 100 to adjust an amount of air introduced into the firebox 21; A second control unit 120 interlocked with the second temperature sensor 121 for generating a corresponding signal for detecting the temperature of the heat medium H and controlling the operation of the blower 110; A subdoor 130 installed at the front side heat insulation body 10 of the combustion chamber 22 to open and close the combustion chamber 22; It is installed in the heat insulating body 10 between the main door 100 and the sub-door 130, the exhaust smoke (heat and smoke and dust coming out when opening the main door 100 through the sub-door 130) And duct section 140 for guiding to 40). The heat exchange chamber 50 is provided with a second circulation motor 150 for circulating the heat medium H to the

heating pipes

150a and 150b embedded in the bottom of the space requiring heating.

The heat insulating body 10 is wrapped with a heat insulating material, for example asbestos, so as to minimize the transfer of heat to the inside and outside.

The combustion chamber 20 includes a fire chamber 21 positioned at a lower side and burning firewood, and a combustion chamber 22 located at an upper side of the fire chamber 21 and bypassing combustion gas generated in a combustion process of firewood. . At this time, the firebox 21 is formed to be long, so that the long firewood can be easily introduced, thereby preventing the inconvenience of cutting the firewood.

The flame guide plate 30 guides the combustion gas generated in the fire chamber 21 to the combustion chamber 22 in the form of " ⊃ ". The flame guide plate 30 is a metal material having a thickness of about 10 mm.

FIG. 4 is a view for explaining a flame induction gap formed between the flame induction plate and the combustion chamber in FIG. 3.

As shown in FIG. 4, the flame guide plate 30 is installed such that flame guide gaps S are formed at both ends thereof spaced apart from the inner surface 20a of the combustion chamber 20. This flame induction interval (S) to ensure that the flame generated in the flame chamber 21 is directly transmitted to the combustion chamber 22 to eliminate the flame dead zone inside the flame chamber 21, and also replay the combustion gas induced in the combustion chamber 22 To digest. The flame induction gap S formed by the flame induction plate 30 preferably has a separation width of 10 to 100 mm, preferably 30 to 70 mm.

Combustion gas generated by burning firewood in the firebox 21 is guided to the combustion chamber 22 in the direction of the arrow as shown in FIG. 2 and then exhausted to the outside through the exhaust flue 40. At this time, the combustion gas passing through the combustion chamber 22 includes a considerable amount of incomplete combustion gas, which is reburned by the flame transmitted directly through the flame induction interval (S). Therefore, the heat efficiency can be increased, so that a large amount of heat can be generated even by a relatively small amount of firewood, which can reduce the management burden of continuously supplying firewood, and also reduce the amount of pollutants in the exhaust gas exhausted to the outside. Is relaxed.

The exhaust flue 40 is installed at the front side of the combustion chamber 22 to exhaust heat, smoke, and dust discharged from the fire chamber 21 when the partition structure 90 and the main door 110 to be described later are opened.

The heat exchange chamber 50 is wrapped around the combustion chamber 20 and is connected to the heat exchange pipe 60 at the same time. The stored heat medium H is the heat of combustion generated in the process of burning the firewood and the heat recovered from the heat exchange pipe 60. Absorbs heat. The heat medium H absorbing heat is circulated by

heating pipes

150a and 150b embedded in the bottom of a space required for heating, such as a room or a living room, by the second circulation motor 150. Such heat medium H is preferably water, for example, and approximately 300 liters are stored in the heat exchange chamber 50.

In addition, support pipes 53 connected to the inner side walls of the heat exchange chamber 50 through the combustion chamber 20 are installed. The support pipe 53 penetrates the combustion chamber 20 and simultaneously supports the flame induction plate 30, and also serves as a flow path for the heat medium stored in the heat exchange chamber 50, and flames inside the combustion chamber 20. Direct contact with heats up the heating medium.

In addition, a hot water supply pipe 55 for supplying hot water is installed in the heat exchange chamber 50. The hot water supply pipe 55 supplies hot water for a shower or dish washing. One side of the hot water pipe 55 is connected to the water supply pipe and the other side of the hot water pipe is connected to the water pipe, and is formed in the form of a coil to increase the heat exchange area with the heat medium (H).

The heat exchange pipe 60 is installed on the inner surface of the combustion chamber 20 to directly contact the flames generated by burning the firewood. The heat exchange pipe 60 includes a first heat exchange pipe 61 provided in a zigzag manner on the inner surface of the fire chamber 21 and a second heat exchange pipe 62 provided in a staggered manner on the inner surface of the combustion chamber 22.

On the other hand, the first heat exchange pipe 61 is provided to be spaced apart from the inner surface of the fire chamber 21 so that the heat medium can be effectively heated by the flame. To this end, the first heat exchange pipe 61 is supported by a separation bar 61a provided on the inner side of the fire chamber 21, and is spaced apart from the inner surface of the fire chamber 21. If the first heat exchange pipe 61 is in close contact with the inner surface of the fire chamber 21, the flame is not transmitted to the rear side of the first heat exchange pipe 61, so the heat exchange efficiency is lowered.

The first circulation motor 70 allows the heat medium H to be circulated between the heat exchange pipe 60 and the heat exchange chamber 50. The first circulation motor 70 is a first interlocked with a first temperature sensor 81 that detects a temperature inside the combustion chamber 22, and strictly, a temperature of the combustion chamber 22 below the exhaust flue 40. The operation is controlled by the controller 80. For example, when the first temperature sensor 81 installed in the combustion chamber 20, more precisely the combustion chamber 22 near the exhaust flue 40 side detects that the temperature of the combustion chamber is 100 degrees or less, the firewood is almost In this case, the first control unit 80 stops the operation of the first circulation motor 70 so that the heat medium does not circulate between the heat exchange pipe 60 and the heat exchange chamber 50.

The partition structure 90 is positioned between the subdoor 130 and the combustion chamber 22 and is implemented in a box shape as a whole. The barrier rib structure 90 has first and

second barrier ribs

91 and 92 arranged to form first and

second exhaust spaces

91a and 92a spaced apart from the bottom of the combustion chamber 22. First and

second partitions

91 and 92 are opposed to each other. In this case, the heights of the first and

second exhaust spaces

91a and 92a range from about 2 cm to about 10 cm from the bottom of the combustion chamber 22.

The first partition wall 91 is disposed to face the combustion chamber 22 so that the combustion gas is swiveled in the combustion chamber 22 so as to be re-burned for a long time, and thus, woody components contained in the combustion gas are burned and removed. To be possible. Thereafter, the exhaust gas from which the grassy components have been removed is exhausted to the exhaust flue 40 through the first exhaust space 91a.

Because grasses do not burn quickly due to their nature, they must be burned for a relatively long time. In order to make this possible, the first partition 91 allows the combustion gas to swing in the combustion chamber 22 to be burned for a long time.

All firewood boilers currently on the market inevitably generate wood liquor and remove it periodically. However, the present invention is to install the bulkhead structure 90 to increase the combustion time by turning the combustion gas in the combustion chamber 22, thereby preventing the generation of wood vinegar that was inevitably generated in the firewood boiler.

The second partition 92 is disposed to face the subdoor 130 and extends to the ceiling of the combustion chamber 22. The second partition 92 and the second exhaust space 92a guide heat, smoke, dust, and the like introduced through the duct 140 to be described later to the exhaust flue 40.

The main door 100 is for selectively opening and closing the firebox 21, and is filled with a heat insulating material so that the heat of the firebox 21 does not escape to the outside. At this time, the main door 100, as shown in Figure 1, the air inlet control plate 101 for manually adjusting the amount of air flowing into the firebox 21 is installed. Air inlet control plate 101 has a blocking plate for opening and closing the air hole (100a) formed in the main door 100, the air inlet control plate 101 is used in the art, so a detailed description thereof will be omitted.

5 is a view for explaining the blower of FIG.

As shown, the blower 110 is installed separately from the air inlet control plate 101 in the main door 100 to adjust the amount of air flowing into the firebox 21, so that the temperature of the heat medium H is a specific temperature. Keep the range. At this time, the blower 110, the opening and closing plate 111 for opening and closing the air inlet hole (110a) is installed so that one side is coupled to the hinge (h). By this structure, the user grasps the handle 111a of the opening and closing plate 111, and rotates the opening and closing plate 111 about the hinge h to properly block the air inlet hole 110a. By employing the opening and closing plate 111 it is possible to more precisely control the amount of air flowing through the blower 110, it is possible to control the combustion state of the firewood more precisely.

The second controller 120 controls the operation of the blower 110 in cooperation with the second temperature sensor 121 that measures the temperature of the heat medium H in the heat exchange chamber 50 and generates a corresponding signal.

For example, when the second control unit 120 sets the temperature range of the heat medium H, when the temperature of the heat medium H falls below the set temperature range, the second temperature sensor 121 detects this to detect a corresponding signal. As a result, the second control unit 120 operates the blower 110 to allow external air to flow into the combustion chamber 20. The firewood then burns vigorously, raising the temperature of the heat medium (H).

On the contrary, when the temperature of the heating medium H is higher than the set temperature range, the second temperature sensor 121 detects this to generate a corresponding signal, and the second controller 120 stops the operation of the blower 110 to The air is not introduced into the combustion chamber 20, and accordingly, the firewood does not burn well, so that the temperature of the heat medium H drops.

That is, the blower 110 and the second control unit 120 can be interlocked with each other to adjust the heating temperature of the building to be heated. The second controller 120 may control not only the blower 110 but also the second circulation motor 150.

The sub-door 130 opens and closes the combustion chamber 22 to provide a space for installing the partition wall structure 90, and also allows the interior of the combustion chamber 22 to be inspected. As shown in FIG. 1, an opening 132 is formed at a lower end of the sub-door 130, and the opening 132 communicates with the duct hole 142 of the duct part 140, which will be described later.

The duct 140 is installed in the heat insulating body 10 between the main door 100 and the sub door 130, and the heat, smoke, and ashes released when the main door 100 is opened are sub-doors ( 130 to the exhaust flue 40. The duct 140 includes a roof 141 formed on the upper side of the main door 100 and a duct hole 142 formed in the roof 141 to communicate with the opening 132 of the subdoor 130. It includes.

6 is a view for explaining that when the main door is opened, heat, smoke, and dust are guided to the exhaust flue through the duct part, the subdoor, and the partition structure.

The organic operation of the exhaust flue 40, the partition structure 90, the sub-door 130 and the duct 140 is as follows.

Since the inside of the exhaust flue 40 maintains a pressure lower than the atmosphere due to the exhaust gas flowing out of the combustion chamber 22, the second exhaust space 92a of the partition structure 90 communicating with the exhaust flue 40 is maintained. In addition, the opening 132 of the sub-door 130, the duct hole 142 of the duct part 140, and the roof 141 are also kept lower than the atmosphere.

Therefore, when the main door 110 is opened to inject firewood into the firebox 21 or to remove the combustion material, the heat, smoke and dust emitted from the firebox 21 are sucked to the roof 141 and the duct hole 142. ), And exits to the exhaust flue 40 through the opening 132 and the second exhaust space 92a. Therefore, even when the user puts the firewood in the firebox 21 or removes the ashes remaining after the firewood is burned, the user is not directly exposed to heat, smoke, and the combustion material, and thus the flame is burned or suffocated or ejected from the smoke. This can eliminate the possibility of fire.

In addition, the boiler door does not have to be opened while the firewood is being put in a narrow boiler room, thus preventing exposure to cold in the winter.

Furthermore, the fine dust generated in the process of removing the combustion material may not drink and thus prevent the health from deteriorating.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

[Description of the code]

10 ... insulation body 20 ... combustion chamber

21 ... Fire Room 22 ... Fire Room

30 ... Hwayoung guide plate 40 ... Exhaust year

50 ... heat exchange chamber 53 ... support pipe

55 ... hot water pipe 60 ... heat exchange pipe

61 ... 1st heat exchange pipe 61a ... spacer bar

62 ... 2nd heat exchange pipe 70 ... 1st circulation motor

80 ... first control unit 81 ... first temperature sensor

90 ... bulkhead structure 91 ... first bulkhead (91)

91a ... first exhaust space 92 ... second bulkhead

92a ... 2nd exhaust space 100 ... Main door

100a ... air hole 101 ... air inlet

110 ... blower 110a ... air inlet

111 ... switchgear 111a ... handle

120 ... second control unit 121 ... second temperature sensor

130 ... subdoor 132 ... opening

140 ... Duct section 141 ... Roof

142 ... duct hole

Claims

The combustion chamber is installed in the heat insulating body 10, and has a combustion chamber 21 in which firewood is combusted to generate flame and combustion gas, and a combustion chamber 22 formed at an upper side of the combustion chamber 21 to bypass combustion gas. 20; A plate-shaped flame guide plate 30 which divides the combustion chamber 20 into the fire chamber 21 and the combustion chamber 22; An exhaust flue 40 installed at an upper portion of the heat insulation body 10 and through which exhaust gas passing through the combustion chamber 22 is exhausted; A heat exchange chamber 50 installed between the heat insulating body 10 and the combustion chamber 20 and storing a heat medium H; A heat exchange pipe (60) installed on the inner surface of the combustion chamber (20) to be in direct contact with the flame and connected to the heat exchange chamber (50) and storing the heat medium (H); The partition wall structure 90 is installed at the front side of the combustion chamber 22 and pivots the combustion gas to stay in the combustion chamber 22 for a long time to burn off the woody components contained in the combustion gas. Wow; The main door is installed in the heat insulating body 10 on the front side of the firebox 21 to open and close the firebox 21, and the air inlet control plate 101 for adjusting the amount of air flowing into the firebox 21 is installed. 100; In the firewood boiler comprising ;; a sub-door (130) installed in the front heat insulating body (10) of the combustion chamber (22) to open and close the combustion chamber (22);

As installed in the heat insulating body 10 between the main door 100 and the sub-door 130, the heat, smoke and dust coming out when opening the main door 100 through the sub-door 130. And a duct section (140) for guiding the exhaust flue (40);

The partition structure (90) has first and second partition walls (91, 92) formed with first and second exhaust spaces (91a) and (92a) spaced apart from the bottom of the combustion chamber (22);

An opening 132 is formed at a lower end of the sub-door 130;

The duct 140 has a roof 141 formed on the upper side of the main door 100 and a duct hole formed in the roof 141 and communicating with the opening 132 of the sub door 130. The firewood boiler, characterized in that it comprises a (142).
The method of claim 1,

A first circulation motor 70 for circulating a heat medium between the heat exchange pipe 60 and the heat exchange chamber 50; And

The first control unit 80 is linked to the first temperature sensor 81 for detecting the temperature inside the combustion chamber 22 to control the operation of the first circulation motor 70; Boiler.
The method of claim 1,

A blower (110) installed in the main door (100) for adjusting the amount of air flowing into the firebox (21); And

And a second control unit 120 linked to the second temperature sensor 121 for generating a corresponding signal for detecting the temperature of the heat medium H to control the operation of the blower 110. Firewood boiler.
The method of claim 1,

The flame induction plate 30 is a firewood boiler, characterized in that both side ends are installed so that the flame induction gap (S) spaced apart from the inner surface of the combustion chamber (20).
The method of claim 1,

The firewood boiler, characterized in that it further comprises a hot water supply pipe (55) installed in the heat exchange chamber (50) for supplying hot water.