KR20090116884A - Boiler for solid fuel - Google Patents

Abstract

PURPOSE: A solid fuel boiler is provided to prevent reverse current of the flame by operating an exhauster in the imputing of fuel. CONSTITUTION: A solid fuel boiler comprises a housing(110), a combustion chamber, an exhauster(180a), a water chamber, a smoke tube, an exhauster(180b), a fuel input(122) and a controller(190). The housing organizes a body of the boiler and has a combustion chamber on center of the housing. The provided solid fuel is burned in the combustion chamber. The exhauster communicates with the lower part of the combustion chamber and compulsorily supplies air to an outside. The water chamber surrounds the outside of the combustion chamber and receives the water from the outside. The smoke tube accomplishes with a plurality of tubes exhausting combustion gas. The exhauster is installed in a combustion gas outlet and compulsorily discharges the combustion gas. The solid fuel is put into in the inside combustor by the fuel input. The controller controls the operation of the exhauster and a blower.

Description

Boiler for solid fuel

The present invention relates to a solid fuel boiler using a solid fuel, in particular to facilitate the combustion of the solid fuel through a smooth supply of air, as well as to prevent damage to the fuel input by the back flow of the flame during fuel injection, It relates to a solid fuel boiler that can easily remove the condensate generated.

In general, a boiler is installed in each home, officetel, and office to heat water through heat exchange between the heat generated by burning fuel and the supplied water, and the heated water can be used for hot water supply or indoor heating. It is.

Meanwhile, liquefied petroleum gas fuels such as gas and oil are widely used as fuels used in such boilers because of their high thermal efficiency, safety in use, and convenience of handling and management. However, such liquefied petroleum gas fuels are expensive due to their high price. Not only is there an economic problem, but there is also a problem of depletion of resources.

Recently, solid fuels using coal-based solid fuels such as lignite, lump coal or coke, which can be purchased at a relatively low price, mainly house houses, livestock farms, and factories and restaurants located in independent areas that require continuous heating for a long time. The boiler is being used.

However, solid fuel boilers use a combustion method that supplies air for combustion by natural ventilation or blows external air directly into the combustion chamber by using a blower. However, this method does not provide sufficient air supply. There is a problem in that fuel loss occurs because the complete combustion of the fuel is almost impossible.

In addition, when additionally adding a shortage of solid fuel during operation of the solid fuel boiler, the flame may flow back through the fuel inlet, there was a problem that can cause serious damage, such as burns to the fuel injector.

Furthermore, after the water is heated using the combustion gas generated during the combustion of the solid fuel, the combustion gas is deprived of heat, lowered to the dew point temperature, and condensate is generated through a phase change. Although it may adversely affect, there was a problem that a separate means for removing the generated condensate is not provided.

The present invention has been proposed to improve the above-described problems, it is possible to smoothly burn the solid fuel through the smooth supply of air, as well as to prevent the damage of the fuel input by the back flow of the flame during fuel injection To provide a solid fuel boiler which can easily remove condensate generated.

To this end, the solid fuel boiler according to the present invention includes a housing constituting the body of the boiler; A combustion chamber installed at the center of the housing and configured to combust the supplied solid fuel; A blower installed in communication with a lower portion of the combustion chamber to forcibly supply air from the outside; A water chamber installed to surround the outside of the combustion chamber and receiving water from the outside; An association portion disposed inside the water chamber, the association portion including a plurality of associations such that combustion gas generated during combustion of the solid fuel flows along the interior and is discharged to the combustion gas discharge side; A blower installed at the combustion gas discharge side and forcibly discharging the combustion gas; A fuel inlet for injecting the solid fuel into the combustion chamber; And a control unit for controlling the operation of the blower and the blower.

At this time, the door of the fuel inlet (door) is equipped with an opening and closing detection sensor for detecting the opening and closing of the door, the control unit detects the opening and closing of the door, the blower is stopped, the blower It is preferable to include a control module to operate only.

Moreover, it is preferable that the water pipe which both ends connected with the said water chamber respectively is provided in the lower part of the said combustion chamber at every fixed interval.

The associating part may include a first connecting part and a second connecting part, one side of the first connecting part may be connected to an upper portion of the combustion chamber, and the other side of the first connecting part and one side of the second connecting part may be disposed below the water chamber. It is preferably connected to each other by the installed lower connection duct, the other side of the second connecting portion is preferably connected to the combustion gas discharge side.

In addition, it is preferable that the condensate discharge pipe is connected to the lower end of the exhaust duct connecting the exhaust fan and the associated portion.

According to the solid fuel boiler according to the present invention, by further including a blower in addition to the blower to enable a smooth air flow can be made to smoothly burn the solid fuel.

In addition, when the fuel is injected, only the blower is operated by the control of the controller to prevent backflow of the flame and to prevent damage of the fuel input.

Furthermore, it is possible to easily remove the condensate generated through the condensate outlet provided on the exhaust fan side.

Hereinafter, a solid fuel boiler according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a solid fuel boiler according to the present invention, Figure 2 is a side sectional view showing a solid fuel boiler according to the present invention, Figure 3 is a plan sectional view showing a solid fuel boiler according to the present invention, Figure 4 is Front sectional view showing a solid fuel boiler according to the present invention.

First, as can be seen through Figure 1, the solid fuel boiler 100 according to the present invention is a coal-based solid fuel (F) or other various solid fuel including lignite, lump coal or coke through the fuel inlet 122 (F) is put into the combustion chamber (refer 120 of FIG. 2) installed inside the housing 110, and the heat source generated by burning the solid fuel F injected in this way, and the water chamber inside the housing 110 (FIG. 2). By heat exchange between the water stored in (see 130), it is configured to supply hot water or heating water.

In addition, a blower 180a is installed at one lower side of the housing 110 and a blower 180b is installed at one upper side of the housing 110 so as to force supply of air for combustion of the solid fuel F. When the blower 180a and the blower 180b are operated simultaneously, sufficient air can be supplied to complete combustion of the solid fuel F through forced supply and suction.

In addition, the operation of the blower 180a and the blower 180b is controlled by the controller 190 installed at the outside of the housing 110, and the controller 190 is connected to the door of the fuel inlet 122. When the detection signal is input from the installed opening / closing sensor (not shown) and the signal is detected that the door is opened for the same reason as the solid fuel (F) input, the operation of the blower 180a is stopped and the blower is stopped. By continuing to operate only 180b, the flame is directed toward the blower 180b side and prevented from flowing back to the fuel inlet 122 side.

In addition, a condensate outlet 180c is installed at the lower end of the exhaust duct connecting the housing 110 and the air blower 180b to freely discharge the condensed water so as to discharge the high acidity condensate. In addition, the condensate outlet 180c is provided with a valve (not shown), which is normally locked, so that it can be opened only when the condensate is to be removed.

Furthermore, the stacking state of the solid fuel F may be confirmed through the intermediate check hole 123 installed at one side of the housing 110, and the solid fuel F may be suitable for combustion through a mechanism such as a long rod. ) Can be mixed, and through the reprocessing port 124 installed in the lower portion of the housing 110, the solid fuel (F) can be treated to the ash generated by the combustion, and the upper cleaning installed on the upper portion of the housing 110 It is possible to clean the associated parts (160, 170) installed in the water chamber 130 through the sphere (125), and pumps (through the low water level sensor 191 that can detect the water level inside the water chamber 130 C) is automatically operated to make up for the shortage of water automatically.

More specifically, the solid fuel boiler 100 according to the present invention, as can be seen through Figure 2, the housing 110 constituting the body of the boiler, the combustion chamber in which the combustion of the supplied solid fuel (F) is made 120, a blower 180a for forced supply of air from the outside, a water chamber 130 receiving water from the outside, and an association unit 160 formed in the water chamber 130 and having a plurality of associations. 170, the exhaust fan 180b for forcibly discharging the combustion gas, and the fuel inlet 122 and the blower 180a and the blower 180b for allowing the solid fuel F to be injected into the combustion chamber 120. It is configured to include a control unit 190 for controlling the operation.

The combustion chamber 120 is formed at the center side in the housing 110, and water pipes 121 connected to the water chamber 130 at both ends thereof are installed at regular intervals. That is, the water pipe 121 is connected to both ends of the water chamber 130 installed around the combustion chamber 120 across the combustion chamber 120.

On the other hand, the water pipe 121 is installed at a close interval so that the solid fuel (F) does not pass, so that the solid fuel (F) injected through the fuel inlet 122 is stacked on the water pipe 121, and At the same time, the air supplied through the blower 180a installed in the lower portion of the combustion chamber 120 may pass through the water pipes 121 to be supplied to the solid fuel F.

Accordingly, the blower 180a is operated to allow the combustion of the solid fuel F accumulated on the water pipes 121 while forcibly supplying air from the outside.

The water chamber 130 is installed to surround the outer surface of the combustion chamber 120 inside the housing 110 and is configured to receive a shortage of water through an inlet 140a installed at an upper side of the housing 110. The water in the supplied water chamber 130 is heated by the flame and combustion gas generated by the combustion of the solid fuel F, and then the hot water supply pipe or the heating water supply pipe through the drain port 140b installed at the lower side of the housing 110. It is configured to be discharged.

At this time, the water chamber 130 is connected to each other by the water pipe 121, so that the water stored in the water chamber 130 is circulated through the water pipe 121, the water stored in the water chamber 130 through this circulation is uniformly Heated. In addition, the water circulating in the water chamber 130 through the water pipe 121 is directly heated by the flame generated during the combustion of the solid fuel (F) stacked on the upper portion of the water pipe 121 to increase the heat exchange rate. .

However, the water pipe 121 is preferably installed to be inclined at a predetermined angle so that the circulation of water occurs more smoothly.

The water chamber 130 is provided with a plurality of associations 160 and 170, each of which is configured to allow the combustion gas generated during the combustion of the solid fuel F to flow along its interior and then be discharged to the combustion gas discharge side. The units 160 and 170 may include a first association unit 160 and a second association unit 170 each consisting of a plurality of associations as can be clearly seen through FIG. 3.

One end of the first connection part 160 is connected to the upper part of the combustion chamber 120 through an upper connection duct 150a, and the other end of the first connection part 160 and one end of the second connection part 170 are male chambers. It is connected to each other by the lower connection duct 150b installed on the lower side of the 130, the other end of the second connection portion 170 is connected to the combustion gas discharge side. In addition, the exhaust fan 180b is connected to the combustion gas discharge side, so that the combustion gas can be smoothly discharged together with the blower 180a.

Therefore, as can be clearly seen through Figure 4, the hot combustion gas generated as the solid fuel (F) is burned rises along the inside of the combustion chamber 120 is supplied to the upper connection duct 150a, the upper connection After descending along the first connecting portion 160 connected to the duct 150a, the lower connecting duct 150b is supplied to the second connecting portion 170. In addition, the combustion gas that rises along the second connection part 170 is discharged to the outside through the exhaust fan 180b.

In this way, the hot combustion gas passes through the first and second connecting units 160 and 170 installed in the water chamber 130 and is discharged to the outside. By heating the water stored in the), it is possible to supply hot water or heating water.

On the other hand, when the solid fuel (F) is burned in the combustion chamber 120 for a long time, a shortage occurs in the solid fuel (F), so the fuel inlet 122 is required to compensate for this, and the fuel inlet 122 may include a housing ( The fuel injection path extending from the outside of the 110 to the inside of the combustion chamber 120 through the water chamber 130 and the door installed at the end of the fuel injection path toward the outside of the housing 110, the door is opened when the fuel shortage occurs Open and allow the user to inject fuel into the combustion chamber 120.

However, the door is provided with an opening and closing detection sensor for detecting the opening and closing of the door, the opening and closing detection sensor is electrically connected to the above-described control unit 190, the control unit 190 of the opening and closing detection sensor And a control module for controlling the driving motors of the blower 180a and the blower 180b according to the open / close detection signal.

In particular, when the open / close detection sensor detects the opening of the door and transmits the door opening signal to the controller 190, the controller 190 receiving the signal stops the operation of the driving motor for driving the blower 180a and the blower. The control signal is transmitted to each driving motor so that only the driving motor driving the 180b can be operated.

Accordingly, when the user opens the door for the solid fuel F input, only the blower 180b operates, so that the flame generated during the combustion of the solid fuel F faces the blower 180b side, and through the fuel inlet 122. Backflow to the user is prevented.

The intermediate inspection opening 123 is provided at a position corresponding to the lower side of the fuel injection opening 122 and the middle portion of the water pipe 121, and the intermediate inspection opening 123 is similar to the fuel injection opening 122 from the outside of the housing 110. Passing through the water chamber 130 is installed to extend into the combustion chamber 120. Accordingly, the stacking state of the solid fuel F may be confirmed through the intermediate check hole 123 installed at one side of the housing 110, and, if necessary, the solid fuel may be maintained through various mechanisms to maintain an environment suitable for combustion. Allow to mix F).

The reprocessing tool 124 is provided at the lower end of the housing 110, and the reprocessing tool 124 extends from the outside of the housing 110 to the inside of the combustion chamber 120 through the water chamber 130. Therefore, when the ash generated by the combustion of the solid fuel F accumulates on the bottom surface of the combustion chamber 120 through a gap between the water pipes 121, the ash may be removed through the reprocessing port 124.

However, it may be desirable to install detachable ash trays (not shown) on the bottom surface of the combustion chamber 120 to separately collect the fallen ashes, and to clean the ashes easily by detaching the ash trays during cleaning.

An upper cleaning device 125 is installed at an upper end of the housing 110, and the upper cleaning device 125 is positioned directly above the first connection part 160 and the second connection part 170, respectively. Therefore, when necessary, the first cleaning unit 160 and the second connecting unit 170 may be cleaned through the upper cleaning tool.

Furthermore, a condensate outlet 180c is installed at a lower end of the exhaust duct connecting the second connection unit 170 and the exhaust fan 180b. The condensate outlet 180c is connected to the first connection unit 160 and the second connection unit. When the combustion gas deprived of heat through heat exchange with water in the water chamber 130 while circulating the unit 170 descends to a dew point or less and condensate occurs, the condensate falls freely through the condensate outlet 180c to the outside. To be discharged.

In addition, as described above, the condensate outlet 180c is provided with a valve (not shown), which is normally closed, so that it can be opened only when the condensate is to be removed.

In the above, the specific Example of this invention was described above. However, the spirit and scope of the present invention is not limited to these specific embodiments, and various changes and modifications can be made without departing from the spirit of the present invention. Those who have it will understand.

Therefore, since the embodiments described above are provided to completely inform the scope of the invention to those skilled in the art, it should be understood that they are exemplary in all respects and not limited. The invention is only defined by the scope of the claims.

The solid fuel boiler of the present invention further includes a blower in addition to the blower, so that smooth air flow can occur so that combustion of the solid fuel can be performed smoothly.

In addition, when the fuel is injected, only the blower is operated by the control of the controller to prevent backflow of the flame and to prevent damage of the fuel input.

Furthermore, it is possible to easily remove the condensate generated through the condensate outlet provided on the exhaust fan side.

1 is a perspective view showing a solid fuel boiler according to the present invention.

2 is a side sectional view showing a solid fuel boiler according to the present invention.

3 is a plan sectional view showing a solid fuel boiler according to the present invention.

4 is a front sectional view showing a solid fuel boiler according to the present invention.

<Explanation of symbols for the main parts of the drawings>

110: housing 120: combustion chamber

121: water pipe 122: fuel inlet

123: intermediate inspection opening 124: reprocessing unit

125: upper cleaning device 130: water chamber

140a: water inlet 140b: drain

150a: upper connection duct 150b: lower connection duct

160: first water pipe portion 170: second water pipe portion

180a: blower 180b: blower

180c: condensate outlet

Claims (5)

A housing constituting the body of the boiler; A combustion chamber installed at the center of the housing and configured to combust the supplied solid fuel; A blower installed in communication with a lower portion of the combustion chamber to forcibly supply air from the outside; A water chamber installed to surround the outside of the combustion chamber and receiving water from the outside; An association portion disposed inside the water chamber, the association portion including a plurality of associations such that combustion gas generated during combustion of the solid fuel flows along the interior and is discharged to the combustion gas discharge side; A blower installed at the combustion gas discharge side and forcibly discharging the combustion gas; A fuel inlet for injecting the solid fuel into the combustion chamber; And And a control unit for controlling the operation of the blower and the exhaust fan. The method of claim 1, The door of the fuel inlet is equipped with an opening and closing detection sensor for detecting the opening and closing of the door, the control unit detects the opening and closing of the door, the blower stops and the blower only operates Solid fuel boiler, characterized in that it comprises a control module. The method according to claim 1 or 2, A lower portion of the combustion chamber, a solid fuel boiler, characterized in that water pipes connected to the water chamber at both ends are provided at regular intervals. The method according to claim 1 or 2, The associated part includes a first connection part and a second connection part, one side of the first connection part is connected to an upper portion of the combustion chamber, and the other side of the first connection part and one side of the second connection part are provided at a lower side of the chamber. It is connected to each other by a connection duct, and the other side of the second tube portion solid fuel boiler, characterized in that connected to the exhaust gas discharge side. The method according to claim 1 or 2, Solid fuel boiler, characterized in that the condensate discharge pipe is connected to the lower end of the exhaust duct connecting the exhaust fan and the associated portion.

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