KR101369605B1 - Boiler - Google Patents

Abstract

The boiler is initiated.
The boiler disclosed is a firebox member for burning fuel supplied; An upper case having the firebox member disposed therein and receiving water in an inner space; A lower case which is partitioned from the upper case and is disposed below the upper case and has a receiving space in which ash formed by burning the fuel in the firebox member is dropped and accumulated; And a blower capable of introducing external air into the lower case, wherein the lower case is provided with a cooling channel through which water in the upper case can flow, thereby allowing the inside of the upper case to pass through the cooling channel. Water flows into the lower case to cool the lower case, and the cooling channel has an outer cooling channel formed outside the lower case, and an inner cooling channel spaced apart from the outer cooling channel inside the lower case. And a connection cooling channel connecting the outer cooling channel and the inner cooling channel, wherein the back receiving space is formed between the outer cooling channel and the inner cooling channel, and the blower space is formed by the blower. Some of the outside air flowing into the lower case is inside the reclaim space The air flow holes such that the inlet is formed, the material receiving space, characterized in that the material conveying member capable of moving the material built-up on the material-receiving space installation.
According to the disclosed boiler, the cooling channel is formed in the lower case, the inside of the lower case can be water-cooled, there is an advantage that the cooling to the lower case can be made as much as required.

Description

Boiler {Boiler}

The present invention relates to a boiler.

A boiler is a device for heating water using heat generated by burning fuel, and for using such heated water for heating, hot water supply, and the like.

Fuel burned in boilers includes gas fuels such as natural gas, liquid fuels such as petroleum, solid fuels such as wood-pellets and wood chips. Pellets are solid fuels produced by crushing wood in sawdust form, followed by drying, calcination, cooling and other processes. Due to the low fuel cost of the pellets, demand for pellet boilers is now expanding.

In general, the boiler is provided with a fire chamber in which the fuel is burned by the flame, the connection pipes and the flue is installed to discharge the smoke generated in the fire to the outside. The water to be heated is filled in the upper case surrounding the firebox, and a lower case is provided below the upper case. Ash generated during combustion of the fuel falls on the lower case and is accumulated.

In the conventional boiler, the lower case is configured to be air-cooled by the outside air supplied by the blower, there is a disadvantage that the cooling to the lower case is not sufficient.

In addition, in the conventional boiler, since the solid fuel is simply supplied to the firebox, it takes time until the solid fuel supplied to the firebox is ignited and combusted, resulting in poor combustion efficiency and incomplete combustion.

It is an object of the present invention to provide a boiler having an improved cooling structure for a lower case.

Another object of the present invention is to provide a boiler having an improved structure for the combustion of solid fuel fed to the firebox.

Boiler according to an aspect of the present invention comprises a firebox member for burning the fuel supplied; An upper case having the firebox member disposed therein and receiving water in an inner space; A lower case which is partitioned from the upper case and is disposed below the upper case and has a receiving space in which ash formed by burning the fuel in the firebox member is dropped and accumulated; And a blower capable of introducing external air into the lower case.
A cooling channel through which the water in the upper case flows is formed in the lower case to cool the lower case while water in the upper case flows into the lower case through the cooling channel. An outer cooling channel formed on an outer side of the lower case, an inner cooling channel formed while being spaced apart from the outer cooling channel on the inner side of the lower case, and a connection cooling channel connecting the outer cooling channel and the inner cooling channel; The back receiving space is formed between the outer cooling channel and the inner cooling channel, and part of the outside air introduced into the lower case by the blower is introduced into the back receiving space. An air flow hole is formed, and the ash tray has the ash tray It is characterized in that the re-transport member that can move the ash accumulated in the space is installed.

delete

Boiler according to another aspect of the present invention comprises a firebox member for burning the fuel supplied; An upper case having the firebox member disposed therein and receiving water in an inner space; And a fuel supply member supplying fuel to the firebox member.

The fuel supply member includes a fuel introduction pipe for introducing the fuel from a fuel storage member in which the fuel to be supplied to the firebox member is stored, and a fuel delivery pipe for delivering the fuel introduced through the fuel introduction tube to the firebox member. And a fuel oil passage portion through which the fuel delivered through the fuel delivery tube passes through the fuel delivery tube before the fuel is supplied from the fuel delivery tube to the firebox member, and a fuel preheating portion for preheating the fuel via the fuel passage oil passage. including,

The fuel supplied to the firebox member through the fuel supply member is supplied to the firebox member in a preheated state in the fuel preheater.

According to the boiler according to an aspect of the present invention, by forming a cooling channel in the lower case, there is an effect that the inside of the lower case can be water-cooled, so that the cooling to the lower case can be made as much as required.

1 is a vertical cross-sectional view showing the configuration of a boiler according to an embodiment of the present invention.
2 is an enlarged view of portion A shown in Fig.
3 is an enlarged view of part B shown in Fig. 1; Fig.
Fig. 4 is an enlarged view of part C shown in Fig. 1; Fig.
5 is a cross-sectional view showing a state in which a second pipe insertion member is inserted into a second connection pipe applied to a boiler according to an embodiment of the present invention.
Figure 6 is a perspective view showing a second pipe insertion member applied to the boiler according to an embodiment of the present invention.
7 is a cross-sectional view showing a state in which a first pipe insertion member is inserted into a first connection pipe applied to a boiler according to an embodiment of the present invention.
8 is a perspective view showing a first pipe insertion member applied to a boiler according to an embodiment of the present invention.
FIG. 9 is a perspective view illustrating a ash communication member and a ash conveying member constituting a boiler according to an embodiment of the present invention; FIG.
10 is a horizontal cross-sectional view showing the configuration of a boiler according to an embodiment of the present invention.

Hereinafter, a boiler according to an embodiment of the present invention will be described with reference to the drawings. In carrying out this description, in the following, the fuel applied to the boiler is presented as a solid fuel, such as wood pellets, wood chips, etc. This is exemplary, and the liquid fuel such as oil, gaseous fuel such as natural gas, etc. In addition, the boiler can be applied with a simple change such as a fuel supply member, and the boiler according to an embodiment of the present invention can target all of the solid fuel, the liquid fuel, and the gaseous fuel.

1 is a vertical cross-sectional view showing the configuration of a boiler according to an embodiment of the present invention, Figure 2 is an enlarged view of a portion A shown in Figure 1, Figure 3 is an enlarged view of a portion B shown in FIG. 4 is an enlarged view of a portion C shown in FIG. 1, and FIG. 5 is a cross-sectional view illustrating a state in which a second pipe insertion member is inserted into a second connection pipe applied to a boiler according to an embodiment of the present invention. 6 is a perspective view showing a second pipe insertion member applied to a boiler according to an embodiment of the present invention, and FIG. 7 is a first pipe to a first connection pipe applied to a boiler according to an embodiment of the present invention. 8 is a cross-sectional view showing the insertion member is inserted, Figure 8 is a perspective view showing a first pipe insertion member applied to the boiler according to an embodiment of the present invention, Figure 9 is a boiler configuration according to an embodiment of the present invention With backing communication member to A perspective view showing a conveying member, Figure 10 is a horizontal sectional view showing a configuration of a boiler according to an embodiment of the present invention.

1 to 10, the boiler 100 according to the present embodiment includes an upper case 110, a lower case 120, a combustion member rotating member 130, a firebox member 140, Connecting pipes such as the first connecting pipe 150 and the second connecting pipe 155, the flue member 170, the combustion member 180, the fuel supply member 190, and the first pipe insertion member 200. ), And a pipe insertion member such as the second pipe insertion member 210, and performs a boiler function such as heating and hot water supply while burning fuel.

The upper case 110 has the flue member 170, the fuel supply member 190, the fire chamber member 140, the combustion member 180, and the like disposed therein, and filled with water to be heated. will be. Of course, some of the components proposed to be disposed in the upper case 110 may be disposed outside the upper case 110.

Reference numeral 112 is an inlet pipe through which the water passes through a demand source for supplying hot water, heating, etc., and reference numeral 111 is an outlet pipe through which water flows from the boiler 100 to the demand destination.

Reference numeral 113 is a space in which water is filled between the inside of the upper case 110 and the outside of the firebox member 140.

Reference numeral 114 denotes a water support diaphragm, in which water contained in the space 113 inside the upper case 110 is accommodated in an upper space thereof.

The lower case 120 is disposed below the upper case 110 while being partitioned from the upper case 110 by the water support diaphragm 114, and water inside the upper case 110 flows therein. A cooling channel that can be formed is formed, and a ash receiving space is formed in which ash formed while the fuel is burned in the firebox member 140 is dropped and accumulated.

Reference numeral 124 denotes a blower for introducing external air. The outside air introduced into the lower case 120 by the blower 124 may be supplied to the firebox member 140, in detail, the combustion member 180.

Water in the upper case 110 flows into the lower case 120 through the cooling channel to cool the lower case 120.

The cooling channel 121 forms an outer cooling channel 121 formed outside the lower case 120 and an inner cooling channel 129 spaced apart from the outer cooling channel 121 inside the lower case 120. And connection cooling channels 125 and 126 connecting the outer cooling channel 121 and the inner cooling channel 129, and between the outer cooling channel 121 and the inner cooling channel 129. A backrest space is formed, and a portion of the outside air introduced into the lower case 120 by the blower 124 is introduced into the backrest space by the blower 124. An air flow hole 101 is formed to allow the remaining fuel in the fuel to be completely burned, and a re conveyance member 260 is installed in the reclaim space to move the ash accumulated in the refill space.

In detail, a first inner case 123 is installed inside the lower case 120 while being spaced apart from the lower case 120, and spaced apart between the lower case 120 and the first inner case 123. This outer cooling channel 121 is provided.

The second inner case 128 is installed at a position spaced apart from the first inner case 123 so as to form the back receiving space, and the second inner case 128 inside the second inner case 128. The third inner case 127 is installed while being spaced apart from each other, and the spaced space between the second inner case 128 and the third inner case 127 becomes the inner cooling channel 129.

The connection cooling channels 125 and 126 connect the outer cooling channel 121 and the inner cooling channel 129 at upper and lower portions of the lower case 120, respectively, so that the outer cooling channel 121 and the lower cooling channel 121 are connected to each other. This allows the water in the inner cooling channel 129 to flow freely.

The outer cooling channel 121 communicates with the inside of the upper case 110 by a vertical connection channel 122, such that the water inside the upper case 110 passes through the upper and lower connection channel 122. It can be flowed to 121.

The space 113 filled with water inside the upper case 110, the upper and lower connection channels 122, the outer cooling channels 121, the connection cooling channels 125 and 126, and the inner cooling channels 129. ) Is in communication with each other, the water in the upper case 110 is connected to the upper and lower connection channel 122, the outer cooling channel 121, the connection cooling channel (125, 126) and the inner cooling channel (129). While flowing, it may be reduced back into the upper case 110.

As described above, since the cooling channel is formed in the lower case 120, the inside of the lower case 120 may be water cooled, and thus, the cooling of the lower case 120 may be sufficiently performed. Will be.

The re conveying member 260 may include a plurality of re conveying panels 261 capable of sweeping ashes of the bottom surface of the receiving space and a connection ring 262 connecting the plurality of re conveying panels 261 with each other. Include.

When a user opens a door (not shown) formed in the lower case 140 and rotates the re conveying member 260, the ashes scattered and accumulated on the bottom surface of the receiving space by the re conveying member 260 are swept away. Re-cleaning can be facilitated as it can be directed towards the user.

The firebox member 140 is a fuel that is supplied by the fuel supply member 190 is burned, and is heated in such a combustion process so that the water filled in the internal space 113 of the upper case 110 is heated.

The combustion member 180 is disposed below the fire chamber member 140, which will be described later. Reference numeral 141 denotes a firebox member cover for opening and closing an upper portion of the firebox member 140.

The first connection pipe 150 is installed in the form extending in the vertical direction while communicating with the upper portion of the firebox member 140, the combustion gas generated in the combustion process of the fuel flows in the firebox member 140 is lowered. It is a tube. In such a lowering process, heat in the combustion gas may be exchanged with water contained in the space 113 in the upper case 110.

The combustion gas lowered through the first connection pipe 150 flows into the ash receiving space formed in the lower case 120.

The recirculation space is a space isolated from the outside while communicating the first connection pipe 150 and the second connection pipe 155 with each other. A plurality of first connecting pipes 150 and a plurality of second connecting pipes 155 may communicate with each other in the recirculation space.

The second connection pipe 155 is a pipe extending in the vertical direction from the outside of the firebox member 140, the lowering through the first connection pipe 150, as the combustion gas is passed through the back receiving space as The heat exchanger may exchange heat with water contained in the space 113 inside the upper case 110.

The first connection pipe 150 and the second connection pipe 155 form a path through which the combustion gas generated from the fire chamber member 140 moves to the flue member 170, and are respectively inserted at the upper end thereof. As the hole is formed, it may be defined as a connection pipe. The connection pipe is composed of the first connection pipe 150 and the second connection pipe 155 is an example, various numbers of connection pipe can be applied.

In the present embodiment, the first connecting pipe 150 and the second connecting pipe 155 are each composed of a plurality, and the total surface area (total of the cross-sectional area) of the plurality of the second connecting pipes 155 is a plurality of each. It is formed relatively larger than the total surface area of the first connection pipe 150. Then, the speed of the combustion gas rising through the second connection pipe 155 is reduced compared to the combustion gas descending through the first connection pipe 150, so that the dust in the combustion gas is within the ash receiving space. It can be burned out completely.

The flue member 170 is discharged to the outside after the combustion gas raised through the plurality of second connection pipe 155 is collected.

In the present embodiment, the flue member 170 is a flue member body 174 through which the combustion gas flows, and an outlet pipe 175 for allowing the combustion gas introduced into the flue member body 174 to flow out; And a dust drop tube 176 in which dust in the combustion gas introduced into the combustion member body 174 is dropped for collection, and a backfire prevention unit for preventing backfire in the flue member body 174.

The dust-dropping tube 176 is connected to a removable dust collection container 173.

The outlet pipe 175 protrudes into the flue member body 174, whereby the combustion gas flowing into the flue member body 174 hits the outer wall of the outlet pipe 175 and thus the combustion. The dust in the gas may be dropped into the drop tube 176.

The flashback prevention part includes a flue door 177 that opens and closes a hole formed in the flue member body 174, and a weight 178 installed outside the flue door 177. Usually the flue door 177 is closed by the weight 178 to maintain the hole formed in the flue member body 174, but when the outside air flows back through the outlet pipe 175, The flue door 177 may be opened by the pressure of the backflowing air, and thus may be blocked so that the backflowing air does not flow back into the firebox member 140 or the like.

In the present embodiment, since the return space is surrounded by the outer cooling channel 121, heat transfer by conduction from the return space to the lower case 120 may be blocked, and accordingly, Heat loss may be blocked, and a phenomenon in which the lower case 120 is heated and the risk of burn of the user may be increased by such heat transfer.

In this embodiment, the insertion hole is formed through the upper end of the connecting pipe. Preferably, the connection pipe is formed in a straight up-and-down direction, and the insertion hole may be a shape in which the upper end of the straight connection pipe is opened.

In this embodiment, the first pipe insertion member 200 is inserted into the first connection pipe 150 through the insertion hole, and the second pipe is inserted into the second connection pipe 155 through the insertion hole. The insertion member 210 is inserted.

The first pipe inserting member 200 and the second pipe inserting member 210 are inserted into the first connecting pipe 150 and the second connecting pipe 155 to be connected to the first connecting pipe 150. The second connection pipe 155 may be defined as a pipe insertion member capable of cleaning the inside.

The first pipe insertion member 200 is connected to the connection shaft 201 inserted into the first connection pipe 150 through the insertion hole and the upper end of the connection shaft 201 to be held by the operator by hand. And a handle part 202 which is caught on an upper end of the upper case 110 and can hold the first pipe insertion member 200 on the upper case 110 and the connection shaft 201. A pipe stopper 203 that extends and blocks an insertion hole of the first connection pipe 150 to prevent leakage of combustion gas, and a plurality of pipe insertion parts 205 spaced apart from each other on the connection shaft 201. It includes.

The pipe inserting portion 205 extends in the shape of a plate or the like from the connecting shaft 201 to prevent the flow of the combustion gas flowing along the first connecting pipe 150 to form turbulence in the combustion gas. Turbine forming portion 206, and the extension portion 207 extending in plurality toward the inner wall of the first connecting pipe 150 while being spaced apart from each other in at least one of the connecting shaft 201 and the turbulent forming portion 206 and Is formed at the end of the extension portion 207 is attached to the inner wall of the first connecting pipe 150 while being lifted together when the connecting shaft 201 is elevated by an external force along the first connecting pipe 150 It includes a plurality of combustion deposit removal unit 208 that can scrape and remove the combustion deposits.

Each end of the plurality of combustion deposit removal portions 208 is formed to be close to each other. Then, a plurality of the combustion deposit removing unit 208 may face most of the inner wall of the first connecting pipe 150, so that most of the combustion deposits on the inner wall of the first connecting pipe 150 may be removed during lifting. Can be. In addition, when any one of the plurality of combustion deposit removal unit 208 encounters an obstacle, only the combustion deposit removal unit 208 that is caught by the obstacle may be bent and cross the obstacle, and another combustion deposit removal unit 208 may be bent. Can be lifted as it is, eliminating combustion deposits.

The extension part 207 and the combustion deposit removal part 208 may be formed with a plurality of spaced apart from each other, and reference numeral 209 is a gas diesel passage hole formed between the plurality of extension parts 207.

Combustion gas blocked by the turbulence forming unit 206 may be lowered through the gas passage hole 209. By this flow pattern, turbulent flows to the combustion gas flowing in the first connection pipe 150. As it occurs, heat exchange efficiency may be improved.

When the boiler 100 is operated, the first pipe insertion member 200 is maintained inserted into the first connection pipe 150 to form turbulence in the first connection pipe 150. When the combustion deposits in the first connection pipe 150 are required, when the operator grasps the handle 202 and repeatedly lifts the first pipe insertion member 200, the combustion deposits removal part ( As the 208 is elevated, the combustion deposits on the inner wall of the first connection pipe 150 may be scraped off. At this time, even if the first pipe inserting member 200 is moved up and down by only the interval between the pipe inserting portions 205, all the combustion deposits on the entire inner wall of the first connecting pipe 150 can be removed. Can be facilitated.

Since the form in which only the pipe stopper 203 is removed from the description described with respect to the first pipe insertion member 200 becomes the second pipe insertion member 210, the overlapping description thereof is replaced with the description thereof. do. In the second connection pipe 155, the combustion gas is to be raised to flow to the flue member 170, the insertion hole should be in the open form, the pipe stopper 203 is removed accordingly The second pipe insertion member 210 is applied.

As described above, as the pipe insertion members 200 and 210 are inserted into the connection pipes 150 and 155, turbulence is generated in the combustion gas flowing in the connection pipes 150 and 155, thereby improving heat exchange efficiency. It is possible to remove the combustion deposits in the connecting pipe (150, 155) by elevating the pipe insertion member (200, 210) within a predetermined range, it is easy to clean the connection pipe (150, 155) Can be done.

In addition, in the present embodiment, the connection pipes 150 and 155 are configured to be transferred to the flue member 170 immediately after allowing the combustion gas generated in the fire chamber member 140 to descend and rise, respectively. Since the flow structure of the combustion gas through the connection pipes 150 and 155 may be simplified, the cleaning of the boiler 100 may be facilitated, and the structure of the boiler 100 may be simplified and the boiler 100 may be simplified. ) Can be compact.

The combustion member 180 is disposed in the firebox member 140, here a lower portion, to provide a space for the fuel supplied into the firebox member 140 to be burned by the flame.

The combustion member rotating member 130 is a motor or the like to rotate the combustion member 180. Reference numeral 131 denotes a gear or the like, which transmits the rotational force of the combustion member rotation member 130 to the combustion member rotation shaft 185 constituting the combustion member 180 to rotate the combustion member rotation shaft 185.

The combustion member 180 may be connected to the combustion member rotating shaft 185 and may be rotated in connection with the combustion member rotating member 130, and may be rotated in connection with the combustion member rotating shaft 185, and the combustion member 180 may be rotated. The turbulence forming plate 181 capable of forming turbulence in the outside air rising toward) and connected to the combustion member rotating shaft 130 on the upper side of the turbulence forming plate 181 may be rotated. The external air flowed while forming turbulent flow by the plate 181 is introduced, and the solid fuel supplied into the firebox member 140 is accommodated to include a fuel accommodating part 182 in which combustion occurs.

The fuel container 182 is formed in a container shape to accommodate the solid fuel, and a bottom external air introduction hole 183 is formed to allow the external air to flow into the bottom of the fuel container 182. The rotary shaft installation blocking panel 186 and the obstruction panel 187 are formed at the upper end of the combustion member rotary shaft 185 and the fuel container 182, respectively.

Reference numeral 116 denotes a shaft support portion for supporting the combustion member rotation shaft 185, and reference numeral 115 denotes a shaft support hole penetrating the shaft support portion 116, through which air flowing inside the lower case 120 passes. will be.

Reference numeral 118 denotes an inner wall protrusion protruding from the inner wall of the fire chamber member 140.

The screen panel 187 may be disposed between the inner wall of the chamber member 140 and the fuel receiving unit 182 so that outside air does not leak through a gap between the inner wall of the chamber member 140 and the fuel receiving unit 182. It is to close the gap.

When configured as described above, the air inside the lower case 120 is introduced through the shaft support hole 115, then blocked by the turbulence forming plate 181 is raised while forming a turbulent flow.

Then, the flowed air is introduced into the fuel receiving portion 182 through the bottom external air introduction hole 183, respectively, and then the rotary shaft installation blocking panel 186 and the obstruction panel 187 By the concentration can be guided to the fuel in the fuel receiving portion 182, thereby improving the combustion efficiency.

In this process, the air passing through the turbulence forming plate 181 is not blocked by the screening panel 187 and does not flow into the gap between the inner wall of the fire chamber member 140 and the fuel receiving unit 182, and the bottom Since it can be led toward the fuel through the external air introduction hole 183, the combustion efficiency can be improved.

The fuel supply member 190 supplies fuel to the firebox member 140 and includes a fuel introduction pipe for introducing fuel from a fuel storage member (not shown) in which fuel for supply to the firebox member 140 is stored. 191, a fuel delivery pipe 195 for delivering the fuel introduced through the fuel introduction pipe 191 to the firebox member 140, and is disposed with a predetermined height difference from the fuel introduction pipe 191. And an air flow from the fuel inlet tube 191 toward the fuel delivery tube 195 such that the flame in the firebox member 140 is not transmitted through the fuel delivery tube 195 toward the fuel introduction tube 191. And an air flow forming member 194 forming the air flow.

Reference numerals 192 and 196 denote fuel advance screws for advancing fuel in the fuel introduction tube 191 and the fuel delivery tube 195, respectively, and reference numeral 197 denotes the fuel advance screw in the fuel delivery tube 195. It is a screw rotating member for rotating the 196. Although not shown, a screw rotating member for rotating the fuel forward screw 192 in the fuel introduction pipe 191 is installed at the rear end of the fuel introduction pipe 191.

Reference numeral 193 denotes a fuel delivery communication pipe communicating the fuel introduction pipe 191 and the fuel delivery pipe 195.

In this embodiment, one side of the air flow forming member 194 is presented in the form of a tube in communication with the inside of the lower case 120, the other side is in communication with the fuel delivery communication tube (193).

Air is introduced into the fuel delivery communication tube 193 via the air flow forming member 194 by the air flow formed in the lower case 120 by the blower 124, and is introduced as described above. Flame transfer from the fuel delivery pipe 195 to the fuel introduction pipe 191 may be blocked by the pressure of air.

Of course, the air flow forming member 194 may be configured as a separate blower or the like, and may independently introduce air into the fuel delivery communication tube 193.

In this embodiment, the fuel delivered through the fuel delivery pipe 195 before the fuel supply member 190 is supplied from the fuel delivery pipe 195 to the firebox member 140 via the fuel. And a fuel preheating unit 250, and a fuel preheating unit 253 for preheating the fuel passing through the fuel diesel unit 250, to the firebox member 140 through the fuel supply member 190. The fuel to be supplied is supplied to the firebox member 140 in a preheated state in the fuel preheater 253.

The fuel gas oil passage 150 has a shape in which the front bottom surface of the fuel delivery pipe 195 extends, and a plurality of through holes are formed, and the fuel preheater 253 is an electric heater or the like. The diesel passage 150 is disposed below. Then, when the fuel is passed on the fuel oil passage 150, the heat of the fuel preheater 253 is transmitted to the fuel through the through hole, so that the fuel is preheated or ignited, and in such a state Since it can be delivered to the firebox member 140, the operating efficiency of the boiler 100 can be further improved.

The boiler 100 includes a fuel supply member side air supply member supplying a part of external air introduced into the lower case 120 by the blower 124 toward the fuel preheater 253.

The fuel supply member side air supply member is a blower connection pipe 252 connected to the blower 124 and an air induction hole 251 for communicating the blower connection pipe 252 and the fuel preheater 253. It is composed. Then, a part of the external air supplied from the blower 124 into the lower case 120 is supplied toward the fuel preheater 253 through the blower connection pipe 252 and the air induction hole 251. By the flow of the air, the heat of the fuel preheater 253 may be more smoothly transferred to the fuel above the fuel diesel fuel 150.

Hereinafter, the operation of the boiler 100 will be described.

First, when the fuel supply member 190 is operated, fuel is supplied to the combustion member 180 in the fire chamber member 140 and placed on the fuel receiving unit 182.

At this time, when the blower 124 is operated, external air flows into and flows into the lower case 120, and such flowing external air is supplied to the combustion member 180.

As described above, fuel combustion occurs in the combustion member 180 by using the air supplied to the combustion member 180, and water in the upper case 110 is heated by heat generated during the combustion of the fuel.

Combustion gas generated while the fuel combustion proceeds in the combustion member 180 is raised through the fire chamber member 140 and then lowered through the first connection pipe 150, and then the connection pipe connection part 123 is formed. It is introduced into the second connection pipe 155 through.

The combustion gas introduced into the second connection pipe 155 is elevated along the second connection pipe 155 and then discharged to the outside through the flue member 170.

In this process, the water contained in the upper case 110 is heated so that the boiler 100 may perform a boiler function such as hot water supply or heating.

While the invention has been shown and described with respect to specific embodiments thereof, those skilled in the art can variously modify the invention without departing from the spirit and scope of the invention as set forth in the claims below. And that it can be changed. However, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

According to the boiler according to an aspect of the present invention, since the cooling structure for the lower case is improved, and the structure for the combustion of the solid fuel supplied to the firebox can be improved, its industrial availability is high.

110: upper case 120: lower case
140: fire chamber member 190: fuel supply member

Claims (8)

A firebox member for burning the supplied fuel;
An upper case having the firebox member disposed therein and receiving water in an inner space;
A lower case which is partitioned from the upper case and is disposed below the upper case and has a receiving space in which ash formed by burning the fuel in the firebox member is dropped and accumulated; And
And a blower capable of introducing external air into the lower case.
The lower case is provided with a cooling channel through which water in the upper case may flow, thereby cooling the lower case while water in the upper case flows into the lower case through the cooling channel,
The cooling channel
An outer cooling channel formed outside of the lower case;
An inner cooling channel formed inside the lower case while being spaced apart from the outer cooling channel;
A connection cooling channel connecting the outer cooling channel and the inner cooling channel,
The back receiving space is formed between the outer cooling channel and the inner cooling channel,
An air flow hole is formed in the return space so that a part of the external air introduced into the lower case by the blower is introduced into the return space.
The recirculation space boiler is characterized in that the retransmission member is installed to move the ash accumulated in the recirculation space. delete A firebox member for burning the supplied fuel;
An upper case having the firebox member disposed therein and receiving water in an inner space; And
A fuel supply member supplying fuel to the firebox member;
The fuel supply member
A fuel introduction pipe for introducing the fuel from a fuel storage member in which the fuel for supply to the firebox member is stored;
A fuel delivery tube for delivering the fuel introduced through the fuel introduction tube to the firebox member;
A fuel gas passage part through which the fuel delivered through the fuel delivery pipe passes through the fuel delivery pipe before the fuel is supplied to the firebox member;
Including a fuel preheater for preheating the fuel via the fuel gas passage,
And the fuel supplied to the firebox member through the fuel supply member is supplied to the firebox member in a preheated state in the fuel preheater. The method of claim 3, wherein
The boiler
A lower case which is partitioned from the upper case and is disposed below the upper case and has a receiving space in which ash formed by burning the fuel in the firebox member is dropped and accumulated;
A blower capable of introducing external air into the lower case; And
And a fuel supply member side air supply member supplying a part of external air introduced into the lower case by the blower toward the fuel preheater.
And the heat of the fuel preheating portion can be transmitted to the fuel gas oil passage portion by external air supplied from the blower by the air supply member on the fuel supply member side. The method according to claim 1 or 3,
The boiler includes a combustion member disposed below the firebox member;
The combustion member
A combustion member rotating shaft which can be rotated in connection with the combustion member rotating member;
A turbulence forming plate which can be rotated in connection with the combustion member rotational shaft and which can form turbulence in the outside air that is raised toward the combustion member;
The upper side of the turbulence forming plate can be rotated in connection with the combustion member rotation axis, the outside air flows while forming turbulence by the turbulence forming plate is introduced, the fuel supplied into the fire chamber member is received and burned With the fuel receiver,
And a shielding panel that closes the gap between the firebox member inner wall and the fuel container so that outside air does not leak through the gap between the firebox member inner wall and the fuel container. The method according to claim 1 or 3,
The boiler
A plurality of first connection pipes installed in a shape extending in a vertical direction while communicating with an upper portion of the firebox member, in which combustion gas generated in the combustion process of the fuel flows in and out of the firebox member; And
And a plurality of second connection pipes extending upward and downward from the firebox member to exchange heat with water contained in the space inside the upper case while the combustion gas lowered through the plurality of first connection pipes is raised. ,
Boiler, characterized in that the total surface area of the plurality of second connection pipe is formed relatively larger than the total surface area of the plurality of first connection pipe. The method according to claim 6,
The boiler may include a pipe insertion member inserted into the first connection pipe and the second connection pipe to clean the inside of the first connection pipe and the second connection pipe.
The pipe insertion member
A connecting shaft inserted into the first connecting pipe and the second connecting pipe;
A turbulence forming unit for forming turbulence in the combustion gas flowing along the first connecting pipe and the second connecting pipe;
At least one of the connecting shaft and the turbulence forming unit is spaced apart from each other and extends into the inner wall of the connecting pipe, and the connecting shaft is lifted together when being lifted by an external force along the connecting pipe to the inner wall of the connecting pipe. A combustion deposit removal unit capable of removing attached combustion deposits,
Boiler, characterized in that each end of the plurality of combustion deposit removal portion is formed to be close to each other. The method according to claim 1 or 3,
The boiler
And a flue member allowing the combustion gas generated in the combustion process of the fuel to flow out from the firebox member to the outside.
The flue member is
A flue member body into which the combustion gas flows;
An outlet pipe allowing the combustion gas introduced into the flue member body to flow out;
A dust drop pipe in which dust in the combustion gas introduced into the combustion member body is dropped for collection;
A flashback prevention portion for preventing backfire in the flue member body,
The combustion gas flowing into the flue member body is configured to hit the outer wall of the outlet pipe so that the dust in the combustion gas can fall into the dropping pipe.

Images