KR20160010856A - Once through boiler including a pallet combustion chamber located at lower part of cylinder of the upright type once through boiler - Google Patents

Abstract

The present invention relates to a once-through type boiler including a pallet combustion chamber located at the lower part of a cylinder of an upright once-through type boiler. Particularly, the present invention uses pallet which is a reasonable fuel compared to oil or coal after the conventional upright once-through type boiler is converted into a once-through type boiler. For this, gases or an oil burner is removed from the conventional upright once-through type boiler and the removed part is sealed with a cover. A pallet combustion chamber is located at the lower part of a cylinder. In the present invention, a pallet, compressed wood fuel, which is relatively cheap is used in the combustion chamber without using gases or oil in the upright once-through type boiler. The once-through type boiler with a pallet combustion chamber removes gases or an oil burner from the conventional upright once-through type boiler and seals the removed part with a cover. A pallet combustion chamber is located at the lower part of a cylinder. In the present invention, a pallet, compressed wood fuel, is used in the combustion chamber which is located at the lower part of the cylinder without using gases or oil in the upright once-through type boiler. Accordingly, the present invention can save fuel costs spent on expensive gases or oil used in the conventional once-through type boiler. Also, since pallet, relatively cheap compressed wood fuel, is used, the once-through type boiler can be used in a country house, a pension in a camping site or a farm house.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a boiler having a pellet combustion chamber at a lower portion of an outer periphery of an upright type flow-through boiler,

[0001] The present invention relates to a perfusion-type boiler provided with a pellet combustion chamber, and more particularly, to a perfusion-type boiler having a pellet combustion chamber, and more particularly, A gas or oil burner is removed from the existing upright type flow boiler and the removed part is sealed with a cover and a pellet combustion chamber is provided at the lower part of the outer cylinder to supply the gas or oil of the upright type boiler to the fuel And a pellet combustion chamber is provided at the lower portion of the outer tube of the upright type of the flow-through type boiler.

When the gas fuel is used, the gasification burner and the combustion chamber are provided at the center of the upper part of the boiler, and the water is filled in the heating water tank with a considerable pressure by the supply water tank. The flame circulates hot water below the water tube and the hot water above the water tube and discharges it by the heat exchanger system to warm the water in the hot water tank, thereby providing the heating and hot water function with hot water.

1 is a cross-sectional view of a conventional non-pressurized hot water boiler for perfusion.

The hydro-pressure hot water boiler for perfusion according to the prior art 1 has a gas burner at the center of the upper part of the boiler, a combustion chamber at a central portion thereof and a discharge pipe, and a hot water tank 2 The water level sensor 5 and the control device C are connected to the atmosphere by communicating with the atmosphere through a communicating tube 7 formed above the heating water tank 2, The water level 29 of the heating water tank 2 is positioned below the communicating tube 7 by the valve 6.

The pressurized hot water boiler for perfusion is heated by the burner 3 with the water of the heating water tank 2 supplied by the elevated water tank 1 provided with the float valve 1 ' Controls the burner 3 so that the water of the heating water tank 2 is heated by the heat exchanger 2 and the upper and lower sides of the heating water tank 2 are subjected to two heat exchanging operations including spiral tubes 9 and 9 ' (10, 10 '); Heating water circulating in the heating water circulating the spiral tube 9 and the radiator 11 or the spiral tube 9 'and the low-temperature bath 12 is connected to the heat exchangers 10 and 10' The water in the heating water tank 2 is supplied to the lower part of the lower tank 12 through the communicating tube 7 so that the upper part of the heating water tank 2 is opened to the atmosphere, Is controlled by the known level sensor 5 and the control device C and the control valve 6. Reference numerals 15 and 16 denote water level sides, reference numerals 13, 14, 17, 18 and 19 denote circulation pumps, 20 denotes an expansion tank, reference numerals 23 and 24 denote drain valves, reference numeral 25 denotes an air cock, reference numeral 26 denotes a main valve, , 28 is a temperature sensor.

This design is achieved by first closing the manual valves 15 and 16 and turning on the power switch of the control unit C and then opening the main valve 26 to start the control valve C by the control unit C, The water in the elevated water tank 1 is filled in the heating water tank 2 and the water level sensor 5 is installed on the side of the heating water tank 2 so that water is filled in the heating water tank 2 at a constant water level The control valve C is closed by the control device C and the burner 3 is ignited and the flame is sprayed. Therefore, the water in the heating water tank 2 is heated to about 80 ° C-90 ° C after a predetermined time, and the temperature sensor 8 senses the temperature of the water in the heating water tank 2 so that the control device C reduces the thermal power of the burner 3, The heat exchanger 10 or 10 'is in communication with the heating water tank 2 so that the hot water heated in the water tank 2 is filled , And the hot water of the low-temperature bath (12) provides the heating or hot water function.

Water is also filled into the radiator 11 and the spiral tube 9 of the heat exchanger 10 by the expansion tank 20 having the float valve 1 ' It is necessary to open the air cock 25 to extract the air and to discharge the air through the radiator 11 and the spiral tube 9 of the heat exchanger 10 by the circulation pump 17, On the other hand, the water in the elevated tank 1 is stored in the low-temperature tank 12 and the water stored by the circulation pumps 18, 19 is circulated inside the spiral tube 9 ' In the prior art 1, water heated to about 80 DEG C to 90 DEG C on the upper side of the heating water tank 2 is circulated through the heat exchanger (13, 14) by the convection pumps 13, 10 ', 10') to heat the spiral tubes 9, 9 'and then re-enter the heating water tank 2 It will be convected.

In the prior art 1, water in the spiral tubes 9 and 9 'is heated up to about 60 ° C. Therefore, it is possible to obtain sufficient heating heat from the radiator 11, hot water can be used in the low- A uniform flow rate can be obtained by using the circulation pump 19 in consideration of the case where the length of the pipe to be supplied is long. The temperature sensor 27 provided above the low-temperature bath 12 operates the circulation pump 18 when the stored water temperature is low, so that water in the low-temperature bath 12 circulates through the spiral tube 9 ' And when the water temperature above the low-temperature bath 12 is high, the operation of the circulation pump 18 is stopped, so that the water temperature in the low-temperature bath 12 is prevented from rising further, If the temperature of the room is excessive, the temperature sensor 28 senses the temperature and the circulation pump 17 is stopped, so that the room temperature can be kept constant. When the control device C or the control valve 6 fails, the control valve 6 is closed. At this time, the water can not be supplied to the heating water tank 2, The manual valve 16 is closed and the water is manually supplied. At this time, when the water level of the water in the heating water tank 2 is inadvertently exceeded, the water level can be maintained through the communicating pipe 7.

The boiler uses a variety of fuels such as gas, oil and coal (briquettes). In the case of gas boilers, a gas burner is provided at the upper part of the boiler to heat the water in the heating water tank, and the heat is circulated through the heat- Used for hot water.

* Perfume type boilers are classified into upright type and overflow type boilers. Upright type flow type boilers are vertical upright type boilers. They occupy a smaller area than large boilers and are used in small business.

The wobble boiler is a horizontally upright boiler, which occupies a larger area than an upright type boiler and is used as a large workplace and industrial boiler.

However, the conventional fuel of the conventional type boiler uses gas or oil, but as the price of oil and gas rises, the flow rate of the fuel using a low-cost fuel such as a pallet, which is a wood compressed fuel, Type boiler boiler became necessary.

Utility Model No. 20-1987-0004169 Patent Publication No. 10-2008-0074828

In order to solve the above-described problems, an object of the present invention is to provide a conventional type of conventional upright type flow-through type boiler by modifying the existing upright type flow type boiler to manufacture a flow-through type boiler using a pallet, which is lower in price than gas, oil or coal, A gas or oil burner disposed in the upper portion of the boiler is removed from the boiler, the removed portion is sealed with a cover, and a pellet combustion chamber is provided at the lower portion of the outer tube to prevent the gas or oil of the upright type boiler from being used as fuel And a pellet combustion chamber is provided in the lower portion of the outer casing of the upright type flow-through boiler using a pallet as a wood-compressed fuel in the combustion chamber.

In order to accomplish the object of the present invention, there is provided an upflow type boiler having a pellet combustion chamber at a lower portion of an outer tube of an upright type flow-through type boiler. The upflow type boiler comprises an outer tube surrounding the heat exchange portion, A combustion space part; A pellet feeder installed at a lower end of the flow-regulating boiler for providing a high heat source to the combustion space, a pellet feeder for feeding pellets to the combustion chamber, and a pellet feeder for feeding pellets to the pellet feeder .

The combustion chamber includes a flame space part for burning pellets at the center, an outer wall part formed of refractory bricks for blocking the combustion space part from the outside, and a refining part provided in a combustion chamber below the combustion space part,

And a combustion plate having a mesh structure is disposed between the ash receiving portion and the combustion space portion.

A plurality of nozzles disposed on the surface of the air supply pipe toward the flame space, and an air supply device for supplying air to the air supply pipe.

The center of the combustion space formed at the center of the heat exchange unit and the center of the flame space of the combustion chamber are arranged to coincide with each other, and the cross sectional area of the combustion chamber is formed to be smaller than the cross sectional area of the outer cylinder. And is installed together within the installation area of the outer tube.

The refractory bricks on the outer wall of the combustion chamber are formed of a plurality of layers, and a part of the refractory bricks is provided with a cooling water storage part for storing cooling water and a cooling water supply device for continuously supplying cooling water to the cooling water storage part. do.

Wherein the pellet transferring unit for transferring the pellets to the combustion chamber comprises a primary transferring unit and a secondary transferring unit, wherein the primary transferring unit transfers the pellets from the pellet supplying unit to the secondary transferring unit, And the pellet is transferred to the combustion chamber.

The primary transfer part may include a first outer appearance; A screw disposed inside the outer tube, and a motor for rotating the screw. The screw is rotated according to the rotation of the motor to transfer the pellets to the secondary transfer part,

Wherein the secondary transfer unit comprises: a second exterior; And an air generator for supplying air to the second outer pipe. The pellets supplied from the primary transfer unit are supplied from the secondary transfer unit to the combustion chamber through air pressure.

The outer tube before the combustion chamber is arranged is characterized in that a gas or oil burner is disposed on the upper portion and a sealed structure is provided on the lower portion.

A gas or oil burner disposed on the upper portion of the outer cylinder is removed before the combustion chamber is disposed, and the removed portion is sealed with a cover, and a hole is formed in the lower portion of the outer cylinder to form the combustion chamber, And the combustion chamber is disposed through the combustion chamber.

The present invention relates to an upflow type boiler provided with a pellet combustion chamber at the lower portion of the outer tube of an upright type of boiler according to the present invention, which is adapted to retrofit a conventional upflow type boiler to use a pallet, which is less expensive than gas, In order to achieve this, a gas or oil burner disposed on the upper portion of the boiler is removed from the existing upright type flow-through type boiler, the removed portion is sealed with a cover, the pellet combustion chamber is provided on the lower portion of the outer cylinder portion, Upflow type boiler using pellets which are wood compressed fuel used as renewable energy in a combustion chamber provided in the lower part of the outer tube without using gas or oil of fuel as fuel.

It also reduces the cost of expensive gas or oil fuel used in conventional upright type boilers and enables upright type flow boilers to be operated using pellets of compressed wood, a renewable energy source that is relatively inexpensive compared to gas and oil fuels. So that it can be used in a power house, a campsite pension, or a farmhouse boiler.

1 is a cross-sectional view of a conventional non-pressurized hot water boiler for perfusion.
FIG. 2 is a cross-sectional view of a flow-through type boiler having a pellet combustion chamber at a lower portion of an outer tube of an upright type flow-through type boiler according to the present invention.
3 is a cross-sectional view of a flow-through type boiler provided with a pellet combustion chamber.
4 is a front view of a flow-through type boiler provided with a pellet combustion chamber of the present invention.

The objects, features and advantages of the present invention will become more apparent from the detailed description and preferred embodiments with reference to the accompanying drawings. In the drawings, the same reference numerals are given to the same components as they are in the drawings, even if they are shown in different drawings. In the following description of the present invention, a detailed description of known related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a cross-sectional view of a flow-through type boiler having a pellet combustion chamber at a lower portion of an outer tube of an upright type flow-through type boiler according to the present invention.

The upright type flow boiler of the present invention is constructed by retrofitting a conventional flow type boiler to remove a gas or oil burner disposed on the upper part of the rotary type boiler, sealing the removed part with the cover 101, And a flow-through type boiler having a pellet combustion chamber at the bottom is manufactured.

In the conventional conventional flow-through type boiler, the outer tube 120 before the combustion chamber 160 is disposed has a gas or oil burner disposed at the upper portion and a sealed structure at the lower portion.

Prior to the placement of the combustion chamber 160, a gas or oil burner disposed on top of the outer tube 120 in the conventional flow-through type boiler shown in FIG. 1, to produce a flow-through type boiler with a pellet combustion chamber, A hole is formed in the lower portion of the outer cylinder 120 to install the combustion chamber 160 and then the combustion chamber 160 is disposed through the hole .

The present invention relates to an upflow type boiler having a pellet combustion chamber at a lower portion of an outer tube of an upright type of boiler of the present invention, which is adapted to retrofit a conventional upflow type boiler to use a pallet, which is less expensive than gas, A gas or oil burner disposed on the upper portion of the boiler is removed from the existing upright type flow-through type boiler, the removed portion is sealed with a cover 101, and a pellet combustion chamber is provided in a lower portion of the outer cylinder portion, Pellets, which are wood compressed fuel, are used in the combustion chamber without using gas or oil fuel of the boiler.

Pellets are used as renewable energy fuels and are wood-compressed fuels made by crushing and compressing wood waste, wood chips and wood.

An upflow type boiler having a pellet combustion chamber at a lower portion of the outer tube of an upright type of flow-through boiler is an upright type of boiler having an outer tube 120 surrounding the heat exchanger 110, A combustion space part 130 formed in the combustion chamber 130; A combustion chamber 160 installed at the lower end of the flow-regulating boiler to provide a high heat source to the combustion space 130; pellet feeders 230 and 240 for transferring the pellets 210 to the combustion chamber 160; And pellet feeders (200, 220) for feeding the pellets (210) to the pellet feeder (230, 240).

The combustion chamber 160 includes a flame space 170 for burning the pellets 210 at the center thereof and an outer wall 140 formed of refractory bricks for blocking the combustion space 130 from the outside, And the ash receiving portion 180 provided in the combustion chamber 160 on the lower side of the combustion chamber 130. The space between the ash receiving portion 180 and the combustion space portion 130 is smaller than the size of each pallet When the combustion plate 185 having the mesh structure is disposed and the pellets 210 transferred to the mesh plate 185 are burnt, the ashes of the burned pellets in the flame are roughened like a grill And passes through the combustion plate 185 having a mesh structure used as a material to be dropped into the ash receiving unit 180.

The combustion plate 185 is provided between the ash receiving part 180 and the combustion space part 130 and has a mesh structure having a unit square smaller in diameter than the diameter of each pellet before being burned It is made of heat-resistant material.

When the pellets transferred to the combustion chamber 160 are burned, the heat exchange unit 110 of the heating water tank, in which the water is circulated by the water supply valve 11 in a cylindrical shape, circulates hot water on the lower cold water, The water directly heated in the direction of the valve 117 can be directly used for heating and warming, or the water in the hot water bath can be warmed and used for heating and heating by using a heat exchange system. In the case of manufacturing a flow-through type boiler using pellets, the discharge valve 117 may be provided selectively or may not have the discharge valve 117.

The vertical diameter d1 of the outer tube portion is made larger than the vertical diameter d2 of the portion including the combustion chamber in the manufacture of the perfusion type boiler provided with the pellet combustion chamber.

Referring to the cross-sectional view of the flow-through type boiler having the pellet combustion chamber of FIG. 3,

An air supply pipe 190 for supplying air to the lower portion of the combustion plate 185 and a plurality of nozzles 192 disposed on the surface of the air supply pipe 190 toward the flame space 170, And an air supply device 191 for supplying air to the air supply pipe 190.

The air supply device includes various devices such as a fan (FAN) and the like, but the drawings and explanations thereof are omitted.

The center of the combustion space 130 formed at the center of the heat exchange unit 110 and the center of the flame space 170 of the combustion chamber 160 are arranged to coincide with each other, Sectional area of the outer tube 120 is smaller than that of the outer tube 120. The combustion chamber 160 is installed below the outer tube 120 and is installed within the outer tube 120.

The refractory bricks on the outer wall of the combustion chamber 160 are formed of a plurality of layers, and a part of the refractory bricks includes a cooling water storage part 150 storing cooling water. The cooling water storage part 150 continuously supplies cooling water And a cooling water supply device (not shown) is further provided.

When the pellets are opened by opening the door 171 of the combustion chamber and burning a large amount of pellets, the pellets are surrounded by the refractory bricks of the outer wall portion 140 of the combustion chamber 160. When the temperature is raised by the hot flame of the combustion chamber 160, In order to prevent cracking, which is a byproduct which is contained in wood pieces of pellets, a cooling water, which is a byproduct, is contained. In order to prevent this, a cooling water storage part 150 is provided on the upper side of the refractory bricks on the outer wall part surrounded by the side surface of the combustion chamber 160, And a cooling water storage portion 150 for lowering the temperature of the combustion chamber 160.

The pellet transfer unit for transferring the pellets 210 to the combustion chamber 160 comprises a primary transfer unit 222, 221 and 220 and a secondary transfer unit 230 and 240. The primary transfer unit is connected to the pellet supply unit 200 The pellets 210 are transferred to the secondary transferring unit and the secondary transferring unit transfers the pellets 210 transferred through the primary transferring unit to the combustion chamber 160.

The primary transfer unit includes a first outer tube 220; A screw 221 disposed inside the outer tube and a motor 222 rotating the screw 221. The screw 221 is rotated according to the rotation of the motor 222, The pellets 210 are fed to the secondary transfer part,

The secondary transfer part includes a second outer pipe 240; And an air generator 230 for supplying air to the second outer pipe. The pellets supplied from the primary transfer unit are supplied from the secondary transfer unit to the combustion chamber 160 through air pressure.

The air generator uses a turbo blower (FAN) and supplies the pellets supplied from the primary transfer part to the combustion chamber 160 from the secondary transfer part by the air pressure of the turbo blower (FAN).

4 is a front view of a flow-through type boiler provided with a pellet combustion chamber of the present invention.

The flow-through type boiler provided with the pellet combustion chamber further includes an ash receiving door (172) for opening the door (171) of the combustion chamber, igniting a pallet by burning with a lighter or the like, and collecting ash remaining after burning the pellet do. The ash receiving unit 180 has a separate space below the combustion chamber 160.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. The present invention can be variously modified or modified.

101: cover
110: heat exchanger (heating water tank)
111: Water supply valve
117: discharge valve
120: Foreign Ministry
130: Combustion space part
140: outer wall portion
150: Cooling water storage part
160: Combustion chamber
170: Flame space section
180:
190: air supply pipe
200: Pellet feeder
210: Pellet
220: First appearance
221: Screw
222: Motor
230: Turbo blower (FAN)
240: Second appearance
280: Support

Claims (9)

In an upright type flow-through boiler,
The flow-through type boiler includes an outer tube 120 surrounding the heat exchange unit 110,
A combustion space part 130 formed at the center of the heat exchange part 110;
A combustion chamber 160 installed at a lower end of the flow-regulating boiler to provide a high heat source to the combustion space 130;
A pellet transferring unit 230 for transferring the pellets 210 to the combustion chamber 160,
And a pellet supply unit (200, 220) for supplying the pellets (210) to the pellet transfer units (230, 240), wherein the pellet combustion chamber is provided at the lower part of the outer casing of the upright type flow boiler.
The method according to claim 1,
The combustion chamber 160 includes a flame space 170 for burning the pellets 210 at the center thereof,
An outer wall part 140 formed of refractory bricks for blocking the combustion space part 130 from the outside,
And a ash receiving portion 180 provided in the combustion chamber 160 below the combustion space portion 130,
And a combustion plate 185 having a mesh structure is disposed between the ash receiving part 180 and the combustion space part 130. The upflow type boiler having a pellet combustion chamber provided at the lower part of the outer cylinder of the upright type . 3. The method of claim 2,
An air supply pipe 190 for supplying air to the lower portion of the combustion plate;
A plurality of nozzles 192 disposed on the surface of the air supply pipe 190 to face the flame space 170;
And an air supply unit (191) for supplying air to the air supply pipe (190). The boiler according to claim 1, wherein the pellet combustion chamber is provided at a lower portion of the outer casing of the upright type flow boiler. 3. The method of claim 2,
The center of the combustion space 130 formed at the center of the heat exchange unit 110 and the center of the flame space 170 of the combustion chamber 160 are arranged to coincide with each other, Sectional area of the outer cylinder 120 and the combustion chamber 160 is installed below the outer cylinder 120 and is installed within the installation area of the outer cylinder 120. [ In which a pellet combustion chamber is provided. 3. The method of claim 2,
The refractory bricks on the outer wall portion of the combustion chamber are formed of a plurality of layers, and a cooling water receiving portion (150) containing cooling water is provided in a part of the refractory bricks
Wherein the cooling water storage unit (150) is further provided with a cooling water supply device for continuously supplying cooling water to the pellet combustion chamber. The method according to claim 1,
The pellet transfer unit for transferring the pellets 210 to the combustion chamber 160 comprises a primary transfer unit 222, 221 and 220 and a secondary transfer unit 230 and 240. The primary transfer unit is connected to the pellet supply unit 200 , Wherein the pellets (210) are transferred to the secondary transferring unit, and the secondary transferring unit transfers the pellets (210) transferred through the primary transferring unit to the combustion chamber (160) And a pellet combustion chamber at the lower portion of the outer tube. The method according to claim 6,
The primary transfer unit includes a first outer tube 220; A screw 221 disposed inside the outer tube and a motor 222 rotating the screw 221. The screw 221 rotates in accordance with the rotation of the motor 222 to rotate the pellets 210 To the secondary transfer section,
The secondary transfer part includes a second outer pipe 240; And a pellet (210) supplied from the primary transfer part is supplied from the secondary transfer part to the combustion chamber (160) through an air pressure, characterized in that the pellets A boiler with a pellet combustion chamber at the bottom of the outer tube of the boiler. 8. The method according to any one of claims 1 to 7,
Wherein the outer cylinder 120 before the combustion chamber 160 is disposed has a gas or oil burner disposed at an upper portion thereof and a closed portion at a lower portion thereof. The upflow type boiler of the upright type has a pellet combustion chamber having a pellet combustion chamber Boiler. 9. The method of claim 8,
Before the combustion chamber 160 is disposed, the gas or oil burner disposed on the upper portion of the outer cylinder 120 is removed, and the removed portion is sealed with the cover 100. In the lower portion of the outer cylinder 120, Wherein the pellet combustion chamber is provided at a lower portion of the outer tube of the upright type flow boiler, wherein the pellet combustion chamber is provided through the hole after the hole is formed to install the combustion chamber.

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