KR101794572B1 - Oil boiler having combustion gas flow guide - Google Patents

Abstract

An object of the present invention is to provide an oil boiler provided with a combustion gas flow path guide for preventing boiling due to a flame of a burner to thereby improve thermal efficiency and reduce noise generation. The oil boiler of the present invention includes a combustion chamber wall 112 surrounding a combustion chamber 102 where combustion by the burner 103 is performed; A plurality of associations (122) arranged to face the burners (103) with the combustion chamber (102) interposed therebetween and through which the combustion gas by combustion of the burner (103) passes; A first associated support plate 113 to which one end of the connection 122 near the burner 103 is fixedly supported; A boiler body (110) filled with heating water in a space between the combustion chamber wall (112) and the connection (122) to form a water tank (101); The burner (103) is provided between the burner (103) and the first associated supporting plate (113), and blocks the combustion gas from being burned by the burner (103) 200-1, 200-2, 200-3 for allowing the gas to flow through a space formed between the inner side surface and the inner side surface.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oil boiler having a combustion gas flow guide,

The present invention relates to an oil boiler provided with a combustion gas flow path guide, and more particularly, to an oil boiler provided with a combustion gas flow path guide for preventing a combustion gas generated in a burner from being concentrated on an associated support plate, To an oil boiler equipped with a guide.

Boilers that are widely used as heating and hot water facilities in general households are classified according to various criteria such as the fuel used to heat the heating water, the location of the heat source and the burner. That is, depending on the fuel used, it is divided into an oil boiler and a gas boiler. The oil boiler uses light oil or kerosene as fuel, and the gas boiler uses liquefied petroleum gas (LPG) or liquefied natural gas (LNG) as fuel. In addition, a general type boiler that performs heat exchange only by a heat source (sensible heat) generated from fuel combustion, and a condensing boiler that performs heat exchange adherently by latent heat of condensation generated from a sensible heat exchanger are also classified. Further, depending on the position of the burner for burning the fuel, the burner is divided into an upwardly burning boiler located at the bottom of the boiler and a downwardly burning boiler located at the top of the boiler.

Among the types of boilers described above, Figure 1 shows typical conventional downcommunication type oil boilers.

A burner (15) is provided on the upper part of the boiler, and a combustion chamber (10) is formed below the burner (15). The combustion is performed in the combustion chamber 10 by the flame generated in the burner 15.

A lower portion of the combustion chamber 10 is provided with a plurality of associations 12 through which a combustion gas passes and forms a heat exchanger. The upper end of the linkage 12 is fixed to the first associated support plate 13 and the lower end of the linkage 12 is fixed to the second associated support plate 14.

A boiler body (11) forming an outer body of the boiler is provided outside the combustion chamber (10) and the association (12). A space between the boiler body 11 and the combustion chamber 10 and a space between the boiler body 11 and the association 12 become the water tank 30 filled with the heating water.

In the space between the boiler body (11) and the combustion chamber (10), a hot water supply coil (20) is provided around the combustion chamber (10). Water to be supplied to the user is supplied to the hot water supply coil 20, and the water is heated by heat exchange with the heating water filled in the water tank 30 and supplied to the user as hot water.

The water filled in the water tank 30 is heated by heat exchange with the association 12 and supplied to the heating destination.

In the conventional downcombustion chamber oil boiler constructed as described above, the flame generated in the burner 15 is formed in a downward direction. Due to the boiling in the region A under the first associated support plate 14 due to the high temperature flame, Air bubbles are generated. These bubbles hinder heat exchange and reduce thermal efficiency. When the bubbles are overheated, there is a problem that noise is generated due to bubbling noise.

Korean Patent Registration No. 10-1504394 is disclosed as a conventional technique for solving such a problem. However, in the case of Japanese Patent No. 10-1504394, the upper end plate and the lower end plate are provided in a multi-stage shape so that the height increases toward the outer side farthest from the flame, but the upper end plate and the lower end plate are complicated in shape It is difficult to manufacture, and even if manufacture is possible, there is a problem that a manufacturing cost is increased.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an oil boiler provided with a combustion gas flow guide for preventing boiling due to flame of a burner from occurring, It has its purpose.

In order to solve the above problems, an oil boiler according to the present invention includes a combustion chamber wall 112 surrounding a combustion chamber 102 where combustion by the burner 103 is performed; A plurality of associations (122) arranged to face the burners (103) with the combustion chamber (102) interposed therebetween and through which the combustion gas by combustion of the burner (103) passes; A first associated support plate 113 to which one end of the connection 122 near the burner 103 is fixedly supported; A boiler body (110) filled with heating water in a space between the combustion chamber wall (112) and the connection (122) to form a water tank (101); The burner (103) is provided between the burner (103) and the first associated supporting plate (113), and blocks the combustion gas from being burned by the burner (103) 200-1, 200-2, 200-3 for allowing the gas to flow through a space formed between the inner side surface and the inner side surface.

The combustion gas flow path guide 200 may include a guide plate 211 spaced from the first associated support plate 113.

And guide sidewalls 212 extending from the edge of the guide plate 211 toward the burner 103. [

A heat insulating material 220 may be provided on the guide plate 211 to block the heat of the combustion gas generated in the burner 103 from being transmitted to the guide plate 211.

The combustion gas flow path guide 200-1 includes a guide plate 211-1 spaced from the first associated support plate 113; And a heat insulating material 220-1 provided on the guide plate 211 to block the heat of the combustion gas generated in the burner 103 from being transmitted to the guide plate 211-1.

The combustion gas flow path guide 200-2 includes a first guide plate 211-2 spaced from the first associated support plate 113; A second guide plate 212-2 provided to form a spacing space 213-2 between the guide plate 211-2 and the guide plate 211-2; Guide side walls 214-221 extending from the edge of the first guide plate 211-2 and the second guide plate 212-2 toward the burner 103 to seal the inside of the spacing space 213-2, 2).

The combustion gas flow path guide 200-3 includes a first guide plate 211-3 spaced from the first associated support plate 113; A second guide plate 212-3 provided to form a spacing space 213-3 between the guide plate 211-2 and the guide plate 211-2; And a guide side wall 214-3 for connecting the edges of the first guide plate 211-2 and the second guide plate 212-3 to each other and sealing the inside of the spacing space 213-3 .

The portion of the combustion gas flow path guide 200, 200-1, 200-2, and 200-3 that contacts the combustion gas may be made of ferrite stainless steel for high temperature oxidation.

The edge of the guide plate 211 may protrude further outward than the outer side surface of the guide sidewall 214.

The oil boiler according to the present invention includes a combustion chamber wall 112 surrounding a combustion chamber 102 where combustion by the burner 103 is performed; A plurality of associations (122) arranged to face the burners (103) with the combustion chamber (102) interposed therebetween and through which the combustion gas by combustion of the burner (103) passes; A first associated support plate 113 to which one end of the connection 122 near the burner 103 is fixedly supported; (130) to cover the top of the first associated support plate (113) to prevent direct contact of the combustion gas with the first associated support plate (113), while allowing the combustion gas to flow through the association And a combustion gas flow path guide 200-4 in which a through hole 215-4 is formed at a position corresponding to the combustion gas flow path guide member 210. [

The combustion gas flow path guide 200-4 may be formed of a heat insulator having a predetermined thickness.

According to the oil boiler of the present invention, since the combustion gas flow guide for guiding the combustion gas to the edge is provided, direct contact of the combustion gas to the associated support plate can be suppressed to suppress the generation of bubbles, improve the thermal efficiency, Can be reduced.

1 is a cross-sectional view of a typical downcomer type general purpose oil boiler;
2 is a sectional view showing an oil boiler according to the first embodiment of the present invention;
3 is a view showing a combustion gas flow path guide according to the first embodiment;
4 is a sectional view showing an oil boiler according to a second embodiment of the present invention
5 is a sectional view showing an oil boiler according to a third embodiment of the present invention
6 is a cross-sectional view showing an oil boiler according to a fourth embodiment of the present invention
7 is a cross-sectional view showing an oil boiler according to a fifth embodiment of the present invention
8 is a view showing a heat insulating material of Fig. 7

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

≪ Embodiment 1 >

FIG. 2 is a sectional view showing an oil boiler according to a first embodiment of the present invention, and FIG. 3 is a view showing a combustion gas flow path guide according to the first embodiment.

The oil boiler 1 of the present invention includes a burner 103 for generating a flame, a combustion chamber wall 112 surrounding the combustion chamber 102 in which the combustion is performed by the burner 103, A first associated supporting plate 113 and a second associated supporting plate 114 on which the upper end and the lower end of the association 122 are fixedly supported, respectively, And a combustion gas flow path guide 200 provided between the first supporting plate 103 and the first associated supporting plate 113 to prevent the combustion gas from flowing through the center portion and to guide the combustion gas to flow to the edge portion.

A burner 103 is provided in an upper portion of the combustion chamber 102 and a flame is formed in a downward direction of the flame generated in the burner 103.

The boiler body 110 surrounds the space of the combustion chamber wall 112 with a spaced space therebetween.

In the space between the combustion chamber wall 112 and the boiler body 110, a hot water supply coil 121 is provided so as to surround the outside of the combustion chamber wall 112. In the hot water supply coil 121, the direct water supplied by the user's hot water request flows. The direct water flowing in the hot water supply coil 121 is heat-exchanged with the hot water filled in the water tank 101 which is the outer space of the hot water supply coil 121, and is supplied to the user as hot water.

A heating water diaphragm 124 is provided in a space between the association 122 and the boiler body 110. The heating water diaphragm 124 prevents the heating water from flowing abruptly in the water tub 101 so that sufficient heat exchange with the combustion gas flowing inside the association 122 is achieved.

The association 122 is a cylindrical shape having a predetermined length in the vertical direction and has an upper portion and a lower portion opened to allow the combustion gas to flow through the upper open portion to flow through the inner space, So that the combustion gas is exhausted.

The association 122 is provided with a baffle plate 123 for increasing the time during which the combustion gas stays in the internal space of the association 122. The baffle plate 123 is disposed such that a plurality of pieces are staggered along the longitudinal direction of the association 122, thereby improving the heat exchange efficiency by delaying the passage time of the combustion gas.

A first associated supporting plate 113 is coupled to the upper end of the association 122. The edge of the first associated supporting plate 113 is coupled to the lower end of the combustion chamber wall 112 and the first associated supporting hole 113 is formed in the body of the first associated supporting hole 113 113a.

A second associated support plate 114 is coupled to the lower end of the association 122. The edge of the second associated supporting plate 114 is coupled to the lower end of the boiler body 110 and the second associated supporting plate 114 is connected to the second associated supporting hole 114 114a.

An upper end portion and a lower end portion of the connection 122 are inserted into the first and second association insertion holes 113a and 114a and the contact portions are respectively welded to each other.

The combustion gas flow path guide 200 is formed of a flow path guide 210 and a heat insulating material 220 and is installed to face the burner 103 with the combustion chamber 102 therebetween.

The flow guide 210 includes a guide plate 211 spaced upward from the first associated support plate 113 and guide sidewalls extending upward from the edge of the guide plate 211 toward the burner 103 214).

The heat insulating material 220 is for blocking the heat of the combustion gas from being transferred to the upper part of the first associated supporting plate 114. The degree of heat shielding may be different depending on the thickness or the material thereof. The heat insulating material 220 may be a refractory insulating material having both fire resistance and heat insulating property to withstand high temperature heat.

A spaced space is formed between the guide sidewall 214 and the combustion chamber wall 112 to form a flow path for the combustion gas.

A guide support leg 213 having a predetermined height is formed on the lower surface of the guide plate 211 so that the flow guide 210 can be separated from the upper surface of the first associated support plate 114.

The edge portion of the guide plate 211 further protrudes outwardly from the outer side surface of the guide side wall 214 to further narrow the spaced space between the guide side wall 214 and the combustion chamber wall 112, So that the heat exchange of the heating water can be performed more smoothly.

The heating water feeding inlet 115 and the heating water feeding outlet 116 for introducing or discharging the heating water into the water tub 101 are provided. Although not shown in the drawings, the inlet and outlet ends of the hot water supply coil 121 are connected to a direct water pipe (not shown) and a hot water pipe (not shown) provided outside the boiler body 110 through the boiler body 110, respectively.

The flow of the combustion gas in the oil boiler having such a configuration is as follows. That is, when combustion is performed in the burner 103, the combustion gas flows downward, and the flowing combustion gas is obstructed by the heat insulating material 220, and an upward flow is generated along the inner wall of the guide sidewall 214 do. Thereafter, the combustion gas flows downward along the space between the guide sidewall 214 and the combustion chamber wall 112. In this process, heat exchange with the heating water of the water tank 101 is performed primarily.

The combustion gas, which has undergone the primary heat exchange, flows downward, flows into the association 122, flows along the inner space of the association 122, and performs heat exchange with the heating water of the outer water tank 101 in a second order .

Since the combustion gas flows downward along the space between the guide sidewall 214 and the combustion chamber wall 112, the heat exchange efficiency is improved.

In addition, since the combustion gas flows through the spaced space between the guide side wall 214 and the combustion chamber wall 112, the temperature of the combustion gas firstly drops and then comes into contact with the first associated support plate 113, so that boiling does not occur.

Also, since the heat insulating material 220 interrupts the flow of the combustion gas, it is effective to prevent boiling by blocking heat transfer to the first associated supporting plate 113.

The guide member 211 and the guide sidewall 214 of the first embodiment described above are provided with the flow guide 210 and the heat insulating material 220. The guide sidewall 214 and the heat insulating material 220 It may be configured not to be provided.

That is, when the guide plate 211 is made thick, the combustion gas flows to the edge of the guide plate 211 and then flows downward to prevent the heat of the combustion gas from being directly transmitted to the first associated support plate 113 So that the occurrence of boiling can be prevented. In this case, since the surface of the guide plate 211 can be oxidized, it is preferable that the guide plate 211 is made of a ferritic stainless steel for high temperature and high temperature resistance, which is a heat resistant steel plate.

≪ Embodiment 2 >

4 is a sectional view showing an oil boiler according to a second embodiment of the present invention.

The combustion gas flow path guide 200-1 of the second embodiment includes a guide plate 211-1 spaced upward from the first associated supporting plate 113 and a guide plate 211-1 provided on the guide plate 211, And a heat insulating material 220-1 for blocking the heat of the combustion gas generated in the heat insulating plate 211-1 from being transmitted to the guide plate 211-1.

Even in this configuration, the combustion gas flows downward from the upper surface of the heat insulating material 220-1 to flow downward again after flowing in the marginal direction. In this process, the heating water of the water tank 101 and the primary heat exchange .

Thereafter, the combustion gas flows to the upper surface of the first associated support plate 113 in a state where the temperature of the combustion gas is low, and heat exchange is performed, so that boiling is prevented.

≪ Third Embodiment >

5 is a sectional view showing an oil boiler according to a third embodiment of the present invention.

The combustion gas flow path guide 200-2 of the third embodiment has a first guide plate 211-2 spaced upward from the first associated support plate 113 and a second guide plate 211-2 spaced upwardly from the first associated support plate 113 A second guide plate 212-2 provided to form a space 213-2 from the edge of the first guide plate 211-2 and the second guide plate 212-2, And a guide side wall 214-2 for sealing the inside of the spacing space 213-2.

The combustion gas flow path guide 200-2 has almost the same structure as the combustion gas flow path guide 200 of the first embodiment but the second guide plate 212-2 and the spacing spaces 213- 2) is provided.

Due to such a configuration, the heat exchange efficiency can be improved since the heat exchange is performed first while flowing downward along the space between the guide side wall 214-2 and the combustion chamber wall 112.

Further, the heat of the combustion gas is prevented from being directly transmitted to the first associated support plate 113, thereby preventing the boiling.

In this case, the inside of the spacing space 213-2 may be formed as an empty space, or an object for blocking heat transmission may be filled.

The first guide plate 211-2 and the second guide plate 212-2 may be made of ferritic stainless steel for high temperature oxidation for prevention of oxidation due to high temperature.

<Fourth Embodiment>

6 is a cross-sectional view showing an oil boiler according to a fourth embodiment of the present invention

The combustion gas flow path guide 200-3 of the fourth embodiment has a first guide plate 211-3 spaced upward from the first associated support plate 113 and a second guide plate 211-3 spaced upward from the first associated support plate 113 A second guide plate 212-3 provided to form a spacing space 213-3 and an edge of the first guide plate 211-2 and the second guide plate 212-3, And a guide side wall 214-3 for sealing the inside of the space 213-3.

The fourth embodiment differs from the third embodiment in that the guide side wall 214-3 does not protrude upward from the second guide plate 212-3.

Also in this case, the space 213-2 prevents the heat of the combustion gas from being directly transmitted to the first associated support plate 113, thereby preventing boiling.

In addition, since heat exchange is performed while flowing downward along the space between the guide side wall 214-3 and the combustion chamber wall 112, thermal efficiency can be improved.

<Fifth Embodiment>

FIG. 7 is a cross-sectional view showing an oil boiler according to a fifth embodiment of the present invention, and FIG. 8 is a view showing the heat insulating material of FIG.

The combustion gas flow path guide 200-4 of the fifth embodiment covers the upper part of the first associated supporting plate 113 to block the direct contact of the combustion gas with the first associated supporting plate 113, And a through hole 215-4 is formed at a position corresponding to the connection 122 so that the combustion gas can flow through the through hole 122 and the through hole 215-4.

In this case, the combustion gas flow path guide 200-4 is preferably made of a heat insulator having a predetermined thickness.

According to this structure, it is possible to prevent the combustion gas from directly contacting the upper surface of the first associated support plate 113 by the combustion gas flow path guide 200-4, thereby preventing boiling.

As described above, the present invention is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the scope of the present invention as defined in the appended claims. And such modifications are within the scope of the present invention.

1: Oil boiler 101: Water tank
102: combustion chamber 103: burner
110: boiler body 112: combustion chamber wall
113: first associated supporting plate 114: second associated supporting plate
121: hot water supply coil 122:
123: baffle plate 124: heating water diaphragm
200, 200-1, 200-2, 200-3, 200-4: Combustion gas flow guide
210: flow guide 211, 211-1, 211-1: guide plate
212-2, 212-3: second guide plates 214, 214-2, 214-3: guide sidewalls
220,220-1: Insulating material 215-4: Through hole

Claims (11)

A combustion chamber wall 112 surrounding the combustion chamber 102 where combustion by the burner 103 is carried out;
A plurality of associations (122) arranged to face the burners (103) with the combustion chamber (102) interposed therebetween and through which the combustion gas by combustion of the burner (103) passes;
A first associated support plate 113 to which one end of the connection 122 near the burner 103 is fixedly supported;
A boiler body (110) filled with heating water in a space between the combustion chamber wall (112) and the connection (122) to form a water tank (101);
The burner (103) is provided between the burner (103) and the first associated supporting plate (113), and blocks the combustion gas from being burned by the burner (103) And a combustion gas flow path guide (200) for flowing through a space formed between the inner side surface and the inner side surface,
The combustion gas flow path guide 200 includes a guide plate 211 spaced from the first associated support plate 113 and guide sidewalls 214 extending from the edge of the guide plate 211 toward the burner 103 );
The edge of the guide plate 211 is further protruded outward from the outer side surface of the guide sidewall 214 Oil boiler
delete delete The method according to claim 1,
Wherein a heat insulating material (220) is provided on the guide plate (211) to block the heat of the combustion gas generated in the burner (103) from being transmitted to the guide plate (211)
delete A combustion chamber wall 112 surrounding the combustion chamber 102 where combustion by the burner 103 is carried out; A plurality of associations (122) arranged to face the burners (103) with the combustion chamber (102) interposed therebetween and through which the combustion gas by combustion of the burner (103) passes; A first associated support plate 113 to which one end of the connection 122 near the burner 103 is fixedly supported; A boiler body (110) filled with heating water in a space between the combustion chamber wall (112) and the connection (122) to form a water tank (101); The burner (103) is provided between the burner (103) and the first associated supporting plate (113), and blocks the combustion gas from being burned by the burner (103) And a combustion gas flow path guide (200-2) for flowing through a space formed between the inner side surface and the inner side surface,
The combustion gas flow path guide (200-2)
A first guide plate 211-2 spaced from the first associated support plate 113;
A second guide plate 212-2 provided to form a spacing space 213-2 between the first guide plate 211-2 and the first guide plate 211-2;
A guide sidewall 214 extending from the edge of the first guide plate 211-2 and the second guide plate 212-2 toward the burner 103 to seal the inside of the spacing space 213-2 -2);
Lt; / RTI &gt;
And an edge of the first guide plate 211-2 protrudes outward from the outer side surface of the guide sidewall 214-2.
delete 7. The method according to claim 1 or 6,
Characterized in that the portion of the combustion gas flow path guide (200, 200-2) that comes into contact with the combustion gas is made of ferritic stainless steel for high temperature and high temperature oxidation.
delete delete delete

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