KR200468600Y1 - Firewood boiler - Google Patents

Abstract

A firewood boiler is disclosed. The firewood boiler of the present invention is a firewood boiler which is configured to increase the temperature of the heat medium oil by burning a firewood, comprising: a cylindrical combustion chamber having a firewood inlet and an opening / closing door at one side and installed in a horizontal direction inside the housing; A first circulation path disposed at an upper side of the combustion chamber so as to be parallel to the combustion chamber while being spaced apart from an upper surface of the combustion chamber, and one side of which is in communication with the other side of the combustion chamber by a lower passage; It is disposed on the upper side of the first circulation passage so as to be parallel to the first circulation passage while maintaining an interval with the upper surface of the first circulation passage, one side is in communication with the other side of the first circulation passage by the upper passage and the combustion chamber and the first circulation passage And a second circulation path for circulating the hot exhaust gas in a zigzag manner; A heat medium oil chamber formed between the combustion chamber, the first circulation path and the second circulation path, and an inner wall of the housing so as to surround the combustion chamber, the first circulation path and the second circulation path; And a hollow plate structure having a predetermined thickness, so that a rapid heating space is formed therein, and a portion of the upper surface of the one side communicates with the heating medium upper region of the combustion chamber and the upper connection pipe, and both sides of the other side are connected to both sides of the combustion chamber. The heat medium oil is communicated with each other by the heat medium loss zone and the side connection pipes, and the heat medium oil introduced into each side connection pipe is rapidly heated by the flame while passing through the quick heating space, and then moves to the heat medium oil room through the upper connection pipe. Characterized in that it comprises a rapid heating for. According to the present invention, since the heat medium oil introduced into a relatively small rapid heating space in the combustion chamber of a firewood boiler is heated and heated rapidly, the temperature of the heat medium oil can be quickly increased to improve the thermal efficiency of the firewood. In addition, since the auxiliary rapid heating unit is provided perpendicular to each circulation path, heat can be recovered from the exhaust gas discharged to the exhaust port, thereby further increasing the temperature of the heat medium oil, and finally recovering the heat of the exhaust gas discharged. Thus, the heat energy utilization of the firewood can be significantly improved.

Description

Firewood Boiler {FIREWOOD BOILER}

The present invention relates to a firewood boiler, and more particularly, to a firewood boiler that can quickly increase the temperature of the heat medium oil to improve the performance of the boiler.

In general, firewood boilers are boilers that use firewood as fuel. Such a firewood boiler is widely used in areas where it is difficult to obtain a firewood such as rural, mountainous areas, or difficult to use electricity, kerosene or diesel.

These firewood boilers are heated by circulating the circulating water with the heat of combustion of the firewood to circulate the living room and the living room, but the combustion time is short due to the nature of the fuel, so the firewood needs to be frequently filled for heating. In addition, it was necessary to continuously manage the vinegar, and the wood vinegar generated during the combustion process prevented the exhaust flue.

As a prior art, Korean Patent No. 10-0846142 is disclosed. In the prior art, the heat exchange chamber is enclosed around the combustion chamber, and the flame guide plate is configured to guide the flame into a "⊃" shape.

However, the flame boiler of such a structure has a problem that it takes a lot of time for the temperature of the heat exhaust oil to increase because the heat exchange chamber filled with the heat medium oil is composed of a structure surrounding the combustion chamber. That is, since the heat exchange chamber was enclosed in the combustion chamber, the temperature could rise only when the entire heat medium oil in the lead exchange chamber was heated, and therefore, a long time was required to increase the temperature of the heat medium oil.

In addition, the coal fired boiler according to the prior art had a problem that the cleaning operation to remove the soot occurs when it is coalesced in the passage through which the flame passes.

Republic of Korea Patent No. 10-0846142 (Notification Date: 2008.07.14)

An object of the present invention is to provide a firewood boiler that can quickly raise the temperature of the thermal fluid oil during operation of the firewood boiler and is easy to clean.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

The above object, according to the present invention, as a firewood boiler to burn the firewood to increase the temperature of the heat medium oil,

A cylindrical combustion chamber having a firewood inlet and an opening door at one side thereof and installed in a horizontal direction inside the housing;

A first circulation path disposed at an upper side of the combustion chamber so as to be parallel to the combustion chamber while being spaced apart from an upper surface of the combustion chamber, and one side of which is in communication with the other side of the combustion chamber by a lower passage;

It is disposed on the upper side of the first circulation passage so as to be parallel to the first circulation passage while maintaining an interval with the upper surface of the first circulation passage, one side is in communication with the other side of the first circulation passage by the upper passage and the combustion chamber and the first circulation passage And a second circulation path for circulating the hot exhaust gas in a zigzag manner;

A heat medium oil chamber formed inside the housing while surrounding the combustion chamber, the first circulation path and the second circulation path, and having a water outlet and a water inlet for the heat medium oil; And

It is formed in a hollow plate structure having a predetermined thickness to form a rapid heating space therein, and one side of the upper surface is in communication with the heating chamber upper side of the combustion chamber and the upper connection pipe, the other side of the heating medium on both sides of the combustion chamber The heat medium oil, which is communicated with each other by the loss area and the side connection pipes, and flows into the side connection pipes is rapidly heated by the flame while passing through the rapid heating space, and then moved to the heat medium oil chamber through the upper connection pipes. It is achieved by a firewood boiler, characterized in that it comprises a rapid heating unit.

First and second cleaning doors for cleaning the inside of the first and second circulation passages are provided on the front surface of the housing, respectively.

In the opening and closing door,

According to the temperature of the combustion chamber or the temperature of the heat medium oil of the heat medium oil chamber is provided with an air inlet opening and closing actuator for selectively opening and closing the air inlet door provided in the opening and closing door to control the amount of air.

On the rear upper side of the housing,

Is provided with an exhaust portion connected to the end of the second circulation path,

The exhaust unit,

A main body connected to the end of the second circulation path and having a liquid discharge port downwardly inclined downward at a bottom thereof to discharge the liquid generated from the exhaust gas;

A third cleaning door provided on one side of the main body to clean the inside of the main body; And

It consists of an exhaust pipe provided in the upper surface of the main body.

The rapid heating unit,

The heat medium oil introduced into the rapid heating space through the side connection pipes is disposed to be inclined rearward so that the front side toward the open / close door side is high and the rear side is low so that the temperature rises through the upper connection pipe and moves to the heat medium oil chamber. Will be.

The rapid heating unit,

The flame generated at the bottom of the combustion chamber is formed in an arc shape concentric with the inner diameter of the combustion chamber so that the flame is collected at the bottom of the rapid heating portion.

The rear end portion of the rapid heating portion,

The flame or high temperature exhaust gas generated in the combustion chamber is positioned at the start region or the middle region of the lower passage so as to move to the lower passage after passing through the rapid heating unit.

The first circulation path and the second circulation path,

At least one auxiliary rapid heating unit for rapidly increasing the temperature of the heat medium oil of the heat medium oil chamber is installed,

The auxiliary rapid heating unit,

It is formed in the shape of a hollow plate having a predetermined thickness and communicates the bottom and the upper surface from each of the inner front side to the rear side of the first and second circulation passages so that the heating medium oil of the lower side is further rapidly warmed while moving upward, and is cleaned. It is placed vertically to allow insertion of the tool.

According to the present invention, since the heat medium oil introduced into a relatively small rapid heating space in the combustion chamber of a firewood boiler is heated and heated rapidly, the temperature of the heat medium oil can be quickly increased to improve the thermal efficiency of the firewood. do.

In addition, since the auxiliary rapid heating unit is provided perpendicular to each circulation path, heat can be recovered from the exhaust gas discharged to the exhaust port, thereby further increasing the temperature of the heat medium oil, and finally recovering the heat of the exhaust gas discharged. The heat energy utilization of firewood can be significantly improved.

In addition, the auxiliary rapid heating unit is installed vertically to facilitate the insertion of the cleaning tool into the circulation path can be easily made claim of the circulation path.

1 is a cross-sectional view showing a coal fired boiler according to the prior art.
2 is a cross-sectional view showing a firewood boiler according to a first embodiment of the present invention.
3 is a perspective view of the firewood boiler shown in FIG.
4 is a sectional view taken along the line AA in Fig.
5 is a cross-sectional view taken along line BB of FIG. 2.
6 is a cross-sectional view taken along line CC of FIG. 2.
7 is a schematic enlarged cross-sectional view illustrating a firewood boiler according to a second embodiment of the present invention.
8 is a front sectional view showing the auxiliary rapid heating unit shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, a description of known functions or configurations will be omitted for the sake of clarity of the present invention.

2 is a cross-sectional view illustrating a firewood boiler according to a first embodiment of the present invention, FIG. 3 is a perspective view of the firewood boiler shown in FIG. 2, and FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2. 5 is a cross-sectional view taken along the line B-B of FIG. 2, and FIG. 6 is a cross-sectional view taken along the line C-C of FIG. 2.

2 to 6, the firewood boiler according to the present invention is to burn the firewood to increase the temperature of the heat medium oil and to circulate the heated heat medium oil to the heating space.

The firewood boiler has a rectangular box-shaped housing 100, a combustion chamber 110 disposed below the housing 100, and a first circulation path disposed in parallel with the combustion chamber 110 at an upper side of the combustion chamber 110. 130, the second circulation path 150 disposed in parallel with the first circulation path 130 on the upper side of the first circulation path 130, the combustion chamber 110, and the first and second circulation paths 130 and 150, respectively. The heat medium oil 160 is formed to store the heat medium oil, and the heat medium oil rapid heating unit 180 is provided at the rear upper side of the combustion chamber 110 to rapidly heat a small amount of heat medium oil.

This will be described in more detail as follows.

The housing 100 has a rectangular box shape and forms a heat medium oil chamber 160 between the inner wall and the combustion chamber 110 and the first and second circulation paths 130 and 160, and at the same time, a heat insulating material is provided on the inner wall to heat loss of the heat medium oil. It is configured not to occur. That is, although not shown in the drawing, the heat insulation layer surrounding the heat medium oil chamber 160 is formed on the inner wall.

Combustion chamber 110 is disposed in the horizontal direction in the inner lower portion of the housing 100, is formed in a hollow cylindrical shape, the firewood inlet 111 is formed on one side. The firewood inlet 111 is located at the front side of the housing 100, and the firewood inlet 111 is opened and closed by an opening / closing door 112. The combustion chamber 110 is formed in a cylindrical shape, so that the firewood to be burned is gathered in one place. That is, since the combustion chamber 110 is formed in a cylindrical shape, the firewood is guided to the inner wall of the curved combustion chamber 110 to be collected at the bottom of the combustion chamber 110 so that reconstruction of the firewood is facilitated, and the embers are collected in one place. This is to ensure that residual heat remains for a long time.

The firewood inlet 111 is formed at the front side of the combustion chamber 110, and the firewood inlet 111 is opened and closed by an opening / closing door 112. In addition, the opening / closing door 112 is provided such that the air inlet 115 is opened and closed by the door 114. In addition, the door 114 opens and closes the air inlet 115 by the actuator 113. To this end, a heat sensor is installed inside the combustion chamber 110, and a temperature sensor is installed inside the heat medium oil chamber 160. The controller operates the actuator 113 based on the temperature and the temperature of the fluid in the combustion chamber 110 sensed by the thermal sensor and the temperature sensor. That is, when the user sets the use temperature, the controller adjusts the amount of air required for burning the firewood so that the temperature of the thermal oil becomes the set temperature based on the detection signal detected by the heat sensor and the temperature sensor.

In this case, the controller may control the circulation pump for circulating the heat medium oil so that the circulation pump may be periodically operated.

The first circulation path 130 is disposed in a horizontal direction on the upper side of the combustion chamber 110 to be parallel to the combustion chamber 110 while maintaining a distance from the upper surface of the combustion chamber 110. Then, one side (right-rear part based on FIG. 2) is in communication with the other side (rear part) of the combustion chamber 110 by the lower passage 120. The cross section of the first circulation path 130 may be formed in a cylindrical shape or a polygonal shape, but in the present embodiment, the cross section is formed in a rectangular cross section.

The second circulation path 150 is disposed in a horizontal direction on the upper side of the first circulation path 130 to be parallel to the first circulation path 130 while maintaining a distance from the top surface of the first circulation path 130, one side (Fig. As a reference, the left-front part is in communication with the other side of the first circulation path 130 by the upper passage 140. The second circulation path 150 is formed in a rectangular cross section like the first circulation path 130.

At this time, since the combustion chamber 110, the first circulation path 130 and the second circulation path 150 are arranged in parallel to maintain a predetermined interval, the combustion chamber 110, the first circulation path 130 and the second circulation path 150. A space of a predetermined interval is formed therebetween to fill the heat medium oil.

The first cleaning door 132 is provided at the front side of the first circulation path 130, and the second cleaning door 152 is provided at the front side of the second circulation path 150. The first and second cleaning doors 132 and 152 allow the user to easily remove soot adhering to the interior of the first and second circulation paths 130 and 150 from the front side.

As described above, the combustion chamber 110, the first circulation path 130, and the second circulation path 150 are arranged in parallel with each other at a predetermined interval, and each of them is successively connected by the lower passage 120 and the upper passage 140. Since the combustion chamber 110, the first circulation path 130, and the second circulation path 150 form a zigzag flow path, high-temperature exhaust gas is guided to the first circulation path 130 through the lower passage 120 to be forward. After the horizontal movement to the negative portion is guided to the second circulation path 150 through the upper passage 140 to move horizontally back to the rear portion is discharged through the exhaust unit 170.

The heat medium oil chamber 160 is formed to surround the entire combustion chamber 110, the first circulation path 130, and the second circulation path 150, and the combustion chamber 110, the first circulation path 130, and the second circulation path 150. And an inner wall of the housing 100. The heat medium oil chamber 160 is provided with a replenishment water inlet, a heat medium oil outlet and a water inlet for refilling the heat medium oil. The outlet port is connected to the circulation pipe installed in the heating space, and the inlet port is connected to the end of the circulation pipe installed in the heating space, and the heated heat medium oil discharged to the outlet port circulates through the circulation pipe and then flows back into the heat medium oil chamber 160 through the inlet port. It is configured to be.

In this case, the circulation pump may be installed in the circulation pipe or the outlet port so that the thermal fluid smoothly circulates the circulation pipe.

Rapid heating unit 180 is a part of the heat medium oil stored in the heat medium oil chamber 160 is quickly warmed from the upper side of the rear region of the high temperature combustion chamber 110 and circulated back to the heat medium oil chamber 160 when the firewood boiler initial operation It is possible to quickly warm the temperature of the heat medium oil, and to increase the heat efficiency of the firewood by further heating the temperature of the heat medium oil during operation, and is formed in a hollow plate structure having a predetermined thickness to rapidly heat the space therein. 182 is formed. Here, the predetermined thickness may be compared to a thickness smaller than the distance between the combustion chamber 110 and the first circulation path 130, and on the other hand, may vary according to the overall size of the housing 100, but is approximately 2 cm. -Can be expressed in thickness of about 15cm. At this time, when the thickness of the rapid heating unit 180 is 3cm or less, the amount of heat medium oil that can be rapidly warmed is too small, when formed more than 15cm the amount of heat medium oil that can be rapidly warmed may be large However, there is a problem that takes a lot of heating time. Therefore, it is preferable to set the thickness according to the capacity of the combustion chamber 110.

As shown in FIG. 2, the rapid heating unit 180 is inclined toward the rear side so that the front portion is high and the rear portion is low, and the upper surface of the front side facing the firewood inlet 111 is connected to the upper connection pipe 184. It communicates with the heat medium oil chamber 160 between the combustion chamber 110 and the 1st circulation path 130, and the rear left and right sides are connected to the heat medium oil chamber 160 of the combustion chamber 110 left and right by the side connection pipe 186, respectively. Communicating. Therefore, the heat medium oil introduced into each side connecting pipe 186 disposed on the lower left and right sides is heated while moving toward the upper connecting pipe 184 while passing through the rapid heating space 182, and then the upper connecting pipe 184 is heated. It is moved to the heat medium oil chamber 160 between the combustion chamber 110 and the first circulation path 130 through. The flow of the heat medium oil is based on the principle that the heat medium oil moves upward when heated. That is, when the rapid heating unit 180 is installed horizontally, the heating medium oil is not boiled and does not flow while generating noise, but the rapid heating unit 180 according to the present invention is disposed inclined so that the heated heating medium flows smoothly to the upper side. It can be.

The rapid heating unit 180 is a flame generated from the bottom of the combustion chamber 110 is concentrated and concentrated on the bottom of the rapid heating unit 180, it is formed in an arc shape so that the area where the flame is in contact. That is, since the rapid heating unit 180 is formed in an arc shape, the area in which the flame generated in the combustion chamber 110 contacts may be expanded. At this time, the rapid heating unit 180 is preferably formed in an arc shape concentric with the inner diameter of the combustion chamber (110). That is, as shown in Figs. 4 and 5 it is formed in an arc opening downward. As such, since the rapid heating unit 180 is formed in an arc shape, the flame of the firewood burning at the bottom of the combustion chamber 110 is collected by the curved bottom of the arc rapid heating unit 180 while the rapid heating unit 180 is formed. The bottom surface of the can be heated intensively, and the area in contact with the flame can be wider than the flat plate.

In addition, the rapid heating unit 180 is installed to maintain a predetermined interval with the upper surface of the combustion chamber 110 so that the flame generated in the combustion chamber 110 is in contact with covering the entire rapid heating unit 180. As such, the rapid heating unit 180 maintains an interval of about 2-10 cm, preferably about 5 cm (depending on the size of the housing or the size of the combustion chamber) with the upper surface (ceiling) of the combustion chamber 110. . Because of this structure, the flame wraps and contacts the entire rapid heating unit 180, so that the heat medium oil accommodated in the rapid heating unit 180 can be quickly heated to a high temperature.

On the other hand, the rapid heating unit 180 is such that the rear end 188 is located between the intermediate region 122 or the start region 121 and the intermediate region 122 of the lower passage 120, as shown in FIG. Is placed. This is to discharge the flame or high temperature exhaust gas after passing through the rapid heating unit 180.

On the other hand, the exhaust portion 170 which is connected to the end of the second circulation path 150 is provided on the upper rear side of the housing 100. The exhaust unit 170 is for discharging liquid from wood vinegar or water vapor generated from the exhaust gas, discharging only the exhaust gas, and allowing the exhaust pipe 176 to be cleaned, and the end of the second circulation path 150. A third body provided at one side of the main body 172 to be connected to the bottom, and a main body 172 having a liquid discharge port 172A for discharging the liquid generated from the exhaust gas downwardly inclined, and to clean the inside of the main body 172. The cleaning door 174 and the exhaust pipe 176 provided on the upper surface of the main body 172.

Heat oil used in the present embodiment may be variously applied, but relatively inexpensive water is used.

Hereinafter, the operation of the present invention will be described.

First, in the state where the heat medium oil is filled in the heat medium oil chamber 160, the firewood is injected into the firewood inlet 111 and then ignited.

The ignition of the firewood causes the temperature inside the combustion chamber 110 to rise, and the heat medium oil in contact with the outer surface of the combustion chamber 110 starts to increase in temperature. In addition, the high temperature exhaust gas moves to the first circulation path 130 through the lower passage 120, and then to the second circulation passage 150 through the upper passage 140 and finally discharged to the exhaust pipe 176. . In this process, the heat medium oil in contact with the outer surfaces of the first and second circulation paths 130 and 150 starts to increase in temperature.

On the other hand, the high temperature flame generated in the combustion chamber 110 is collected at the curved bottom surface of the rapid heating unit 180 to heat the bottom surface, and thus the temperature inside the rapid heating space 182 of the rapid heating unit 180 is As it rises, the heat medium contained therein is heated up.

And, the heat medium oil contained in the rapid heating space 182, the flame is concentrated on the bottom surface of the rapid heating unit 180, the internal capacity of the rapid heating space 182 is significantly smaller than the heat medium oil chamber 160. Therefore, the temperature can be rapidly increased compared to the heat medium oil accommodated in the heat medium oil chamber 160. In particular, the heat medium oil accommodated in the heat medium oil chamber 160 is heated only in the region in contact with the combustion chamber 110 or the first and second circulation paths 130 and 150, but the rapid heating unit 180 is located inside the combustion chamber 110. Since the upper connection pipe 184 and the side connection pipe 186 is installed independently, the rapid heating space 182 as a whole can be heated at the same time heat medium oil contained therein can be quickly heated up.

In this way, the heat medium oil heated and rapidly heated in the rapid heating space 182 moves to the upper side of the rapid heating space 182 and is connected between the combustion chamber 110 and the first circulation path 130 through the upper connection pipe 184. The heating medium 160 is moved. Then, the heating medium is continuously introduced into each side connection pipe 186 and then the temperature is raised while passing through the rapid heating space 182, and then exits to the upper connection pipe 184 continuously.

Due to this action, since a small amount of heat medium oil is continuously heated and heated rapidly, the overall temperature of the heat medium oil can be raised in a short time, which means that a high amount of heat efficiency can be obtained with a small amount of firewood.

On the other hand, the controller receives the detection signal of the thermal sensor and the temperature sensor to maintain the temperature set by the user to control the actuator 113. That is, the actuator 113 to selectively open and close the door 114 of the air inlet 115 to adjust the amount of air supplied to the combustion chamber (110).

The combustion of the firewood in the above-described process, the heat medium oil is heated up, and the heated heat oil is circulated in the heating space, thereby heating the heating space.

In addition, due to the nature of the firewood fuel, the soot generated while burning the firewood adheres to the inner wall of the combustion chamber 110 or the inner walls of the first and second circulation paths 130 and 150. To remove this, after the combustion is completed, the opening and closing door 112 and the first, second, and third cleaning doors (132, 152, 174) are opened to insert a cleaning tool, and then scraped and cleaned.

Thus cleaning doors are provided in each passage so that cleaning of the soot can be easily performed.

On the other hand, Figure 7 and Figure 8 of the accompanying drawings shows a second embodiment of the present invention.

In the firewood boiler according to the second embodiment shown in FIGS. 7 and 8, at least one auxiliary rapid heating unit 190 for rapidly and rapidly raising the temperature of the heat medium oil accommodated in the heat medium oil chamber 160 includes a first circulation path ( 130) and the same as the above embodiment except that the second circulation path 150 is installed.

The auxiliary rapid heating unit 190 is formed in a hollow plate shape having a predetermined thickness to communicate the bottom and the upper surface from the inner front side to the rear side of each of the first and second circulation passages 130 and 150 so that the heat medium oil of the lower side is upper. It will be placed vertically to warm up further rapidly as it moves on. That is, as shown in FIG. 7, the auxiliary rapid heating unit 190 is continuously formed from the front side to the rear side, and as shown in FIG. 8, the first and second circulation paths 130 and 150 are interposed therebetween. It is installed vertically so as to communicate the upper and lower heat medium oil 160 of the two circulation paths (130,150).

Due to this structure, the heat medium oil positioned in the upper and lower portions of the first circulation path 130 passes through the first circulation path 130 by the auxiliary rapid heating unit 190 provided in the first circulation path 130. It passes through the second circulation path 130 by the auxiliary rapid heating unit 190 provided in the second circulation path (150).

At this time, the thinner the thickness of the auxiliary rapid heating unit 190 can quickly increase the temperature of the heat medium oil. The thickness may vary depending on the size of the entire housing 100, that is, the size of the entire firewood boiler or the size of the circulation paths 130 and 150, but is approximately 1 cm to 5 cm. If it is formed within 1cm, the temperature rise of the heat medium oil can be made quickly, but it is difficult to expect a large effect due to the small capacity, and if it is 5cm or more, the large capacity can be heated, but the heating time takes a long time is preferable. Make 2 cm-3 cm.

Since the auxiliary rapid heating unit 190 is disposed vertically, the heat medium oil heated while passing through the inside thereof can be quickly moved upward, which means that boiling noise due to rapid temperature rise does not occur.

In addition, the auxiliary rapid heating unit 190 may be provided with one or more.

As described above, the auxiliary rapid heating unit 190 is disposed perpendicularly to each of the circulation paths 130 and 150, while the high-temperature exhaust gas moves to the second circulation path 150 through the first circulation path 130 and then to the first and second paths. At the same time as heating the inner wall of the circulation path (130,150) is to heat each auxiliary rapid heating unit 190 installed vertically therein.

In this process, the heating medium oil is heated while covering the first and second circulation paths 130 and 150, as well as the fruit oil passing through each auxiliary rapid heating unit 190 may be rapidly heated. In other words, a part of the fruit oil can be heated quickly by the waste heat of the exhaust gas to increase the temperature.

At this time, since the auxiliary rapid heating unit 190 is installed vertically, since the lower side heat medium oil is heated while passing through the auxiliary rapid heating unit 190 and moved to the upper side, the circulation of the heat medium oil is naturally performed.

On the other hand, since the auxiliary rapid heating unit 190 is installed vertically, the cleaning tool can be smoothly inserted into the first and second circulation paths 130 and 150. That is, since the auxiliary rapid heating unit 190 is vertically disposed long from the front to the rear, the cleaning tool for scraping off the soot can be easily inserted without interference.

In this way, the heat medium oil is heated by the combustion chamber 110 and the first and second circulation paths 130 and 150 as well as a part of the heat medium oil is circulated while being rapidly heated up by the rapid heating unit 180 and the auxiliary rapid heating unit 190. The temperature of the whole heat medium oil can rise rapidly, and the thermal efficiency of a firewood can be maximized by this.

In the foregoing, specific embodiments of the present invention have been described and illustrated, but the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have. Therefore, such modifications or variations should not be individually understood from the technical idea or viewpoint of the present invention, but the modified embodiments should be included in the claims of utility model registration of the present invention.

100 housing 110 combustion chamber
111: firewood input 112: opening and closing door
113: actuator 114: door
115: air inlet 120: lower passage
130: 1st circulation road 132: 1st cleaning door
140: upper passage 150: second circulation passage
152: second cleaning door 160: heat medium loss
170: exhaust portion 172: main body
172A: Liquid outlet 174: 3rd cleaning door
180: rapid heating unit 182: rapid heating space
184: upper connector 186: side connector
190: auxiliary rapid heating unit

Claims (9)

It is a firewood boiler which burns a firewood and raises the temperature of heat medium oil,
A cylindrical combustion chamber having a firewood inlet and an opening door at one side thereof and installed in a horizontal direction inside the housing;
A first circulation path disposed at an upper side of the combustion chamber so as to be parallel to the combustion chamber while being spaced apart from an upper surface of the combustion chamber, and one side of which is in communication with the other side of the combustion chamber by a lower passage;
It is disposed on the upper side of the first circulation passage so as to be parallel to the first circulation passage while maintaining an interval with the upper surface of the first circulation passage, one side is in communication with the other side of the first circulation passage by the upper passage and the combustion chamber and the first circulation passage And a second circulation path for circulating the hot exhaust gas in a zigzag manner;
A heat medium oil chamber formed inside the housing to surround the combustion chamber, the first circulation path, and the second circulation path, the heat medium oil chamber having a water outlet and a water inlet for the heat medium oil; And
It is formed in a hollow plate structure having a predetermined thickness to form a rapid heating space therein, and one side of the upper surface is in communication with the heating chamber upper side of the combustion chamber and the upper connection pipe, the other side of the heating medium on both sides of the combustion chamber The heat medium oil, which is communicated with each other by the loss area and the side connection pipes, and flows into the side connection pipes is rapidly heated by the flame while passing through the rapid heating space, and then moved to the heat medium oil chamber through the upper connection pipes. Including rapid heating unit,
The rapid heating unit,
The heat medium oil introduced into the rapid heating space through the side connection pipes is disposed to be inclined rearward so that the front side toward the open / close door side is high and the rear side is low so that the temperature rises through the upper connection pipe and moves to the heat medium oil chamber. Characterized in that
Firewood boilers. The method of claim 1,
The rapid heating unit,
Characterized in that the flame generated in the combustion chamber is installed while maintaining a predetermined interval with the upper surface of the combustion chamber so as to contact while covering the entire rapid heating portion,
Firewood boilers. The method of claim 1,
First and second cleaning doors for cleaning the inside of the first and second circulation passages are provided on the front surface of the housing, respectively.
Firewood boilers. The method of claim 1,
In the opening and closing door,
The air inlet opening and closing actuator for controlling the amount of air by selectively opening and closing the door for the air inlet provided in the opening and closing door according to the temperature of the combustion chamber or the heat medium oil temperature of the heat medium oil chamber, characterized in that
Firewood boilers. The method of claim 1,
On the rear upper side of the housing,
Is provided with an exhaust portion connected to the end of the second circulation path,
The exhaust unit includes:
A main body connected to the end of the second circulation path and having a liquid discharge port downwardly inclined downward at a bottom thereof to discharge the liquid generated from the exhaust gas;
A third cleaning door provided on one side of the main body to clean the inside of the main body; And
Characterized in that the exhaust pipe provided on the upper surface of the main body,
Firewood boilers. delete The method of claim 1,
The rapid heating unit,
The flame generated from the bottom of the combustion chamber is collected on the bottom surface of the rapid heating portion, characterized in that formed in an arc shape so that the area in contact with the flame is expanded,
Firewood boilers. The method of claim 7, wherein
The rear end portion of the rapid heating portion,
The flame or hot exhaust gas generated in the combustion chamber is located in the start region or the middle region of the lower passage so as to move to the lower passage after passing through the rapid heating portion,
Firewood boiler, The method according to any one of claims 1 to 5, 7 and 8,
The first circulation path and the second circulation path,
At least one auxiliary rapid heating unit for rapidly increasing the temperature of the heat medium oil of the heat medium oil chamber is installed,
The auxiliary rapid heating unit,
It is formed in the shape of a hollow plate having a predetermined thickness and communicates the bottom and the upper surface from each of the inner front side to the rear side of the first and second circulation passages so that the heating medium oil of the lower side is further rapidly warmed while moving upward, and is cleaned. Characterized in that vertically arranged to allow insertion of the tool,
Firewood boilers.

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