KR100852491B1 - Vertical burn pipe type hot-water boiler - Google Patents

Abstract

A vertical type hot water boiler is provided to enhance heating transfer efficiency of a boiler by increasing the retention time of combustion gas in an inner case. A vertical type hot water boiler equipped with a cylindrical inner case(10) and a water chamber(20) includes a plurality of baffle water pipes(13-17). The water chamber surrounds the inner case. The baffle water pipes communicate with the water chamber while connecting opposite two sides of the inner case between a combustion chamber(11) and a smoke chamber(18). The baffle water pipes cross the inner case in a direction perpendicular to a central axis(AX) of the inner case. The baffle water pipes are formed along the central axis at a certain interval. Adjacent baffle water pipes have central lines(13a-17a) that cross each other.

Description

Vertical Burn Pipe Type Hot-Water Boiler}

The present invention relates to a hot water boiler for heating water at high heat by combustion of fuel, and more particularly, to increase the residence time of the combustion gas in the inner cylinder and to increase the heat transfer efficiency of the boiler to quickly heat the water and reduce the fuel cost. It relates to a vertical hot water boiler that can be saved.

In general, a hot water boiler is a device for heating a boiler water with a high temperature generated by burning fuel and supplying it to a place where heating is required (hereinafter, abbreviated as a heating part).

1 is a view showing a conventional conventional associated associated hot water boiler, (a) is a longitudinal cross-sectional view, (b) is a cross-sectional view.

Referring to the drawings, the conventional vertical associated hot water boiler 50 is filled with the boiler water is heated and circulated in the tubular body housing 56, the water chamber 55 is formed, the inside of the water chamber 55 in the vertical direction It is provided with a plurality of pipes (52) in the form of a straight tube through which connects the lower combustion chamber (51) and the upper combustion chamber (53).

When the vertical associated hot water boiler 50 starts to operate, the fuel supplied to the combustion chamber 51 is ignited and burned by the operation of the burner 1, so that the flame that is fired forward is inside the combustion chamber 51. After going straight on, the boiler water in the water chamber 55 surrounding the combustion chamber 51 is primarily heated while being reversely flown in the inner wall of the combustion chamber 51.

Subsequently, the high-temperature combustion gas generated by the flame generated in the combustion chamber 51 passes through the plurality of pipes 52 above the combustion chamber 51 and draws boiler water inside the water chamber 55 that surrounds the pipe 52. Heat secondary

Of course, the combustion gas that has passed through the association 52 is collected in the combustion chamber 53 above the association and is exhausted from the combustion chamber 53 through the flue 54 communicating with the outside.

On the other hand, the water chamber 55 is provided with a water supply line for supplying the boiler water heated to an appropriate temperature to the external heating need, and a return line for returning the radiated and cooled boiler water while circulating the external heating need.

Therefore, the boiler water heated to a certain temperature by the cooperative heat transfer and self-convection as described above is supplied to the external heating need through the water supply line, and is used for heating and then radiated to the water chamber 55 through the water return line. The process of returning and reheating and reapplying is repeatedly performed.

However, the conventional vertical hot water boiler 50 has the following problems.

First, since the flame generated in the combustion chamber 51 heats up the inner wall of the combustion chamber 51 for a short time and passes upward through the connection 52 in the form of a simple straight tube without any resistance, the inside of the connection 52 There was a problem in that the residence time in the short was not enough to transfer sufficient thermal energy to the boiler water. That is, there are many disadvantages in terms of performance and economy, such as low fuel thermal efficiency and excessive heating time for boiler water.

On the other hand, in order to solve this problem, the residence time of combustion gas in the pipe is increased by disposing the heat absorbing plate up and down along the direction of the central axis inside the pipe, but the heat absorbed by the heat absorbing plate is transferred to the boiler water inside the chamber. While the ratio is low, the thermal efficiency does not improve so much, but the manufacturing cost and time of the boiler increase due to the installation of the heat absorbing plate.

Second, since the water chamber 55 exists immediately around the combustion chamber 51, the flame sprayed from the burner 1 is not affected by the low temperature effect of the boiler water inside the water chamber 55, unless an expensive burner is used. ), There was a problem that can not be completely burned.

If the incomplete combustion of such fuel continues, an insulating layer in which non-combustible solids such as ash are accumulated is formed inside the combustion chamber and the associated pipe, and consumes a lot of fuel while lowering the heat transfer efficiency. In addition, incomplete combustion of such fuels causes environmental pollution by emitting harmful combustion gases to the outside.

Third, there is a difficulty because it is an integral structure to clean the inside of the combustion chamber 51 and the associated body 52 in which non-combustible solids are accumulated.

The present invention has been made to solve the above problems, by increasing the combustion gas residence time in the inner cylinder by changing the middle portion of the inner cylinder to induce the combustion gas of the fuel while increasing the heat transfer efficiency of the boiler quickly water It is an object of the present invention to provide a vertical hot water boiler capable of heating and reducing fuel costs.

In addition, another object of the present invention is to provide an eco-friendly vertical hot water boiler which can induce complete combustion of fuel in a combustion chamber, not only to exhaust harmful gases, but also to reduce maintenance and management costs and time.

As a technical configuration for achieving the above object, the present invention is a hot water boiler having a cylindrical inner cylinder and a water chamber filled with water surrounding the inner cylinder, the inner cylinder between the combustion chamber and the combustion chamber facing the inner cylinder A plurality of beams are communicated with the chamber through both side portions to traverse the interior of the inner cylinder in a direction orthogonal to the direction of the central axis of the inner cylinder, and are disposed at random intervals up and down along the central axis direction of the inner cylinder. It is provided with a baffle water pipe, characterized in that the direction of the central axis of the up and down neighboring baffle water pipes cross each other.

The direction of the central axis of the up-and-down neighboring baffle water pipes may cross each other by 90 °.

Each of the baffle water pipes may be symmetrical with respect to the central axis of the inner cylinder.

At this time, the baffle water pipe is characterized in that the straight lines connecting the vertices facing each other on a plane perpendicular to the central axis of the inner cylinder is perpendicular to each other.

The baffle water pipe is characterized in that five individuals.

One of the upper and lower surfaces of the baffle water pipe is roughly processed to increase the heat transfer area.

On the other hand, in the standing hot water boiler according to the present invention, the combustion chamber is characterized in that the screen further inducing the complete combustion of the fuel across the flame caused by the combustion of the fuel.

The screen is characterized in that it traverses the interior of the inner cylinder horizontally.

As described above, the vertical hot water boiler according to the present invention improves the internal structure of a cylindrical inner cylinder surrounded by a water chamber filled with boiler water, that is, horizontally traverses the interior of the inner cylinder to the inner cylinder portion between the combustion chamber and the combustion chamber. It is provided with a plurality of baffle water pipes communicating with the water chamber and disposed at an arbitrary interval up and down along the direction of the center axis of the inner cylinder. Whenever the gas passes through each of the baffle water pipes sequentially, the gas flows reversely in the lower surface of each of the baffle water pipes, thereby increasing the combustion gas residence time in the inner cylinder and also heating the water quickly by increasing the heat transfer efficiency of the boiler. In addition, the fuel cost can be reduced.

In addition, the vertical hot water boiler according to the present invention is provided with a screen across the flame according to the combustion in the combustion chamber, thereby inducing the complete combustion of the fuel in the combustion chamber to reduce the amount of harmful gases exhausted to the atmosphere, and inside the combustion chamber and the combustion chamber Cumulatively reduce non-combustible solids such as ash, which can degrade the performance of the boiler, and further has the effect of reducing the maintenance and management costs and time of the boiler accordingly.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in more detail as follows.

2 is a view showing a vertical hot water boiler according to the present invention, (a) and (b) is a longitudinal sectional view in a direction perpendicular to each other, Figure 3 is a view showing a vertical hot water boiler according to the present invention, (a) 2 is a cross-sectional view taken along the line AA 'of FIG. 2, and (b) is a cross-sectional view taken along the line BB' of FIG.

As shown in Figures 2 and 3, the vertical hot water boiler according to the present invention is a cylindrical inner cylinder 10 for inducing high-temperature combustion gas generated by the combustion of the fuel, and wrapped around the inner cylinder 10 The main body 30 is divided into, the empty space between the inner cylinder 10 and the main body housing 30 is filled with boiler water to be heated so as to surround the upper surface and the side of the inner cylinder 10 (20). ) Is formed.

A burner 1 for igniting and burning fuel is installed in the lower portion of the inner cylinder 10, and a combustion chamber 11 in which a flame and high-heat combustion gas are generated according to the operation of the burner 1 is provided.

The upper part of the inner cylinder 10 is provided with a combustion chamber 18 in which the combustion gas generated in the combustion chamber 11 is finally collected.

An intermediate portion between the combustion chamber 11 and the combustion chamber 18 in the inner cylinder 10 is a main part of the present invention, and communicates with the water chamber 20 through opposite side portions of the inner cylinder 10 facing the inner cylinder. A plurality of baffle water pipes 13 to 17 are disposed across the interior of the inner tube 10 and sequentially disposed at random intervals up and down, respectively, along the direction of the center axis AX of the inner cylinder 10.

At this time, since the area occupied by each of the baffle water pipes 13 to 17 on a plane orthogonal to the direction of the center axis AX of the inner cylinder 10 is smaller than the area of the inner cylinder 10, the respective baffle water pipes 13 to 17. The combustion chamber 11 and the combustion chamber 18 communicate with each other through the openings formed at both sides of the.

Each of the baffle water pipes 13 to 17 traverses the inside of the inner cylinder 10, and is disposed in a direction orthogonal to the direction of the central axis AX of the inner cylinder 10, and the upper and lower neighboring baffle water pipes are separated from each other. The central axis directions preferably cross each other.

At this time, it is more preferable that the center axis direction of the upper and lower neighboring baffle water pipes cross each other by 90 °.

For example, when five baffle water pipes 13 to 17 are used as shown in the drawing, the first baffle water pipe 13, the second baffle water pipe 14, the third baffle water pipe 15, If the fourth baffle water pipe 16 and the fifth baffle water pipe 17 are named, the first and second baffle water pipes 13 and 14 may be separated from each other, and the second and third baffle water pipes 14 and 15 may be separated from each other. The baffle water pipes 15 and 16 and the fourth and fifth baffle water pipes 16 and 17 are arranged so that their intersecting angles in the central axis direction are 90 °, respectively. ) Central axis directions are the same, and the center axis directions of the second and fourth baffle water pipes 14 and 16 are the same.

In addition, the baffle water pipes 13 to 17 are preferably formed to be symmetrical with respect to the central axis AX of the inner cylinder 10. This causes the combustion gas to reversely flow back from the lower surfaces 13a to 17a of each of the baffle water pipes 13 to 17 to escape upward through both openings of each of the baffle water pipes 13 to 17, wherein each opening This is to equalize the amount of combustion gas moving to the upper part and to heat the boiler water inside the water chamber 20.

At this time, it is more preferable that each of the baffle water pipes 13 to 17 has straight lines connecting vertices facing each other on a plane orthogonal to the central axis AX of the inner cylinder 10. That is, through-holes are formed in the side portions facing the inner cylinder 10 so that the interior of each of the baffle water pipes 13 to 17 communicates with the water chamber 20, wherein the through-holes are the inner cylinder 10. To occupy the length of the circular arc corresponding to 90 ° with respect to the central axis (AX) of the inner cylinder 10 on the circumference of the.

As a result, most of the combustion gas generated in the combustion chamber 11 and proceeding from the singer passes through the respective baffle water pipes 13 to 17 sequentially and continuously flows from the lower surfaces 13a to 17a to allow the inner cylinder 10 to flow. D) longer residence time, and thus more heat is transferred to the boiler water inside the water chamber 20 surrounding the inner cylinder 10 as well as the boiler water inside each of the baffle water pipes 13 to 17. Done.

In addition, in the vertical hot water boiler according to the present invention, it is preferable to further arrange the screen 12 of the metal mesh across the flame caused by the combustion of the fuel in the combustion chamber 11.

For example, the screen 12 induces complete combustion of fuel, and more preferably horizontally inside the combustion chamber 11 on a plane orthogonal to the direction of the central axis AX of the inner cylinder 10. Try to cross.

On the other hand, the number of the baffle water pipes disposed inside the inner cylinder 10 is preferably set to five as shown in the figure, but is not limited to this, of course, the number can be changed.

In addition, at least one of the upper surface and the lower surface 13a to 17a of each of the baffle water pipes 13 to 17 may be embossed unevenly to increase the heat transfer area.

Figure 4 is a perspective view showing the movement path of the combustion gas in the inner cylinder in the vertical hot water boiler according to the present invention.

Referring to FIG. 4, in the vertical hot water boiler according to the present invention, the combustion gas traveling path therein is directed from the lower combustion chamber 11 in the inner cylinder 10 to the upper combustion chamber 18, and the combustion chamber 11. ) And the combustion chamber 18 can be seen to proceed in a chain shape.

More specifically, the combustion gas between the combustion chamber 11 and the combustion chamber 18 sequentially passes through each of the baffle water pipes 13 to 17 that traverses up and down along the direction of the center axis AX of the inner cylinder 10. While going through, it reversely flows from the lower surfaces 13a to 17a and proceeds through both openings of the respective baffle water pipes 13 to 17.

Therefore, when the vertical associated boiler according to the present invention starts to operate, the fuel supplied to the combustion chamber 11 is ignited and burned by the operation of the burner 1, so that the flame that is fired forward is transferred to the combustion chamber 11. The boiler water in the water chamber 20 surrounding the combustion chamber 11 is primarily heated while going straight inside and then reversely flowing in the inner wall of the combustion chamber 11.

Subsequently, the high temperature combustion gas generated by the flame generated in the combustion chamber 11 passes through the inner cylinder upper part of the combustion chamber 11, and the lower surface of each of the baffle water pipes 13 to 17 from the combustion chamber 11. 13a to 17a are sequentially heated to heat the boiler water inside each of the baffle water pipes 13 to 17 secondly.

In addition, the combustion gas inverted and returned from the lower surfaces 13a to 17a of the respective baffle water pipes 13 to 17 heats the inner wall surface of the inner cylinder 10 to surround a middle portion of the inner cylinder 10 ( 20) Thirdly heat the boiler water inside.

Therefore, the boiler water heated to a constant temperature by cooperative heat transfer and self-convection as described above is supplied to an external heating need through a water supply line (not shown), and is used for heating, and after being radiated, a return line (not shown) Return to the water chamber 20 through the) is repeatedly performed to be heated and re-supplied again.

As described above, in the detailed description of the present invention has been described with respect to preferred embodiments of the present invention, those skilled in the art to which the present invention pertains various modifications without departing from the scope of the present invention Of course this is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the equivalents as well as the claims to be described later.

1 is a view showing a conventional conventional hot water boiler, (a) is a longitudinal cross-sectional view, (b) is a cross-sectional view,

2 is a view showing a vertical hot water boiler according to the present invention, wherein (a) and (b) are longitudinal cross-sectional views in directions perpendicular to each other,

3 is a view showing a vertical hot water boiler according to the present invention, (a) is a cross-sectional view taken to the AA 'plane of Figure 2 (a), (b) is a cross-sectional view taken to the BB' plane of Figure 2 (a). ego,

4 is a perspective view showing a combustion gas movement path from the combustion chamber to the combustion chamber in the vertical hot water boiler according to the present invention.

<Code Description of Main Parts of Drawing>

1: burner 10: inner barrel

11: combustion chamber 12: screen

13 to 17: baffle water pipe 18: combustion chamber

19: year 20: sink

30: main unit housing

Claims (8)

In the hot water boiler having a cylindrical inner cylinder and a water chamber filled with water surrounding the inner cylinder, The combustion chamber and the combustion chamber inside the inner cylinder communicates with the water chamber through opposite side portions of the inner cylinder to cross the inside of the inner cylinder in a direction orthogonal to the central axis of the inner cylinder, along the direction of the central axis of the inner cylinder. Each of which has a plurality of baffle water pipes which are disposed at random intervals up and down, The vertical hot water boiler, characterized in that the direction of the central axis of the upper and lower neighboring baffle water pipes cross each other so that the combustion gas generated in the combustion chamber is reversely reversed at its lower surface whenever passing through each of the baffle water pipes. The method of claim 1, The vertical hot water boiler, characterized in that the direction of the central axis of the up and down neighboring baffle water pipes to cross each other by 90 °. The method according to claim 1 or 2, Each of the baffle water pipes is a hot water boiler, characterized in that the symmetrical shape with respect to the central axis of the inner cylinder. The method of claim 3, wherein The baffle water pipe is a vertical hot water boiler, characterized in that the straight lines connecting the vertices facing each other on a plane perpendicular to the central axis of the inner cylinder is perpendicular to each other. The method according to claim 1 or 2, The baffle water pipe is a vertical hot water boiler, characterized in that five. The method according to claim 1 or 2, One of the upper and lower surfaces of the baffle water pipe is embossed to increase the heat transfer area, the hot water boiler characterized in that the. The method according to claim 1 or 2, And a screen for inducing complete combustion of the fuel across the flame caused by the combustion of the fuel is further disposed in the combustion chamber. The method of claim 7, wherein And the screen traverses the interior of the inner cylinder in a direction orthogonal to the central axis of the inner cylinder.

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