KR20150134177A - The cooling system of the heat exchanger - Google Patents

Abstract

Provided is a cooling device for a sensible heat exchanger. The cooling device for the sensible heat exchanger includes: an inflow chamber, in which water flows inside, on one surface of a housing of the sensible heat exchanger; a supply chamber wherein the water flowing inside through the inflow chamber is heat-exchanged while the water is circulated, and the water is supplied to a heat exchange unit of the sensible heat exchanger; and multiple cooling pipes wherein one end is individually connected to the inflow chamber and protrudes to the outside of the rear surface and the other surface of the housing such as the water is circulated to the supply chamber over the whole surface. Therefore, the cooling device for the sensible heat exchanger can maximize cooling efficiency and also can improve durability by minimizing both a welding area and a pressure area. Therefore, the cooling device for the sensible heat exchanger can obtain high reliability and a long use term without damage or deformation.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooling system of a sensible heat exchanger,

The present invention relates to a cooling device for a sensible heat exchanger used in a boiler, and more particularly, to a cooling device of a sensible heat exchanger which can maximize cooling efficiency and minimizes a welding area and minimizes a pressure generating area to improve durability To a cooling device for a sensible heat exchanger.

Generally, a boiler is a heating device for receiving heating or hot water, that is, a heating device that heats water by using combustion heat generated in a combustion process of fuel, circulates heated water along a pipe, .

In recent years, condensing type boilers have been gradually popularized to maximize thermal efficiency with a minimum of fuel consumption.

The conventional condensing boiler includes a sensible heat exchanger in which sensible heat is directly brought into contact with the burner, a latent heat exchanger for preheating heating water to be supplied using the latent heat of the exhaust gas passed through the sensible heat exchanger and then supplying heating water to the sensible heat exchanger .

Herein, the sensible heat exchanger in which the heat of combustion of the burner is directly in contact with the heat exchanger will be described.

The sensible heat exchanger comprises a housing provided with a combustion chamber in which high-temperature thermal energy is generated by combustion of fuel of a burner, and a plurality of heat exchange pipes provided in the lower housing of the combustion chamber to heat- The heat exchanging unit and the housing in which the combustion chamber is located are provided with cooling means for preventing high temperature thermal energy generated in the combustion chamber from being transmitted to the outside of the combustion chamber.

That is, the cooling means prevents damage or breakage due to thermal damage of the peripheral device due to the transfer of high-temperature thermal energy to the outside, and in particular, prevents the housing around the combustion chamber from being damaged or deformed.

Conventional cooling means provided in the sensible heat exchanger is generally divided into a dry type in which a heat insulating material is attached to the inner wall of the housing of the combustion chamber and a wet type in which the heating water is circulated to the outside of the housing.

In the case of dry type, there is a limitation in the heat insulating ability of the heat insulating material. Therefore, when the amount of heat continuously generated exceeds the ability of the heat insulating material, corrosion occurs in the housing. But also has the disadvantage that the cost increases when the heat insulator is made thick or when the material of the housing is changed.

In the wet type, piping is welded to the front and rear surfaces of the housing, and on both sides thereof, respective chambers through which the water can be circulated can be provided. This is achieved by welding a separately processed chamber plate to the side surface of the housing do.

However, in the case of wet type, high pressure is generated in the chamber having a large area due to the continuous high-temperature heat energy of the combustion chamber, so that cracks or gaps are generated around the welding side of the housing and the chamber plate, Respectively.

In order to solve the above problems, there has been proposed a structure in which a circulation pipe capable of circulating the heating water to the outer surface of the housing where the combustion chamber of the heat exchanger is located is wound several times.

However, the above-mentioned structure has a disadvantage in that the banding work for bending the circulating pipe and the work for fixing the bending circulation pipe and the housing of the heat exchanger by welding work are considerably troublesome and inconvenient.

In order to solve the above-mentioned problems, conventionally, Korean Patent No. 10-0822173 (hereinafter referred to as "prior patent document 1"), registered patent No. 10-0872965 (hereinafter referred to as "prior patent document 2" (Hereinafter, referred to as 'prior patent document 3'), registered patent No. 10-0956127 (hereinafter referred to as 'prior patent document 4'), and registered patent No. 10-1019794 Quot; Document 5 ").

The cooling structure of the above-mentioned patent document is formed by forming a large-area outer wall corresponding to the outer surface of the housing of the heat exchanger so that the heating water can be circulated in a conventional chamber form or by forming a water jacket on the outer surface of the housing of the heat exchanger .

Korean Patent No. 10-0822173 Korean Patent No. 10-0872965 Korean Patent No. 10-0933419 Korea Patent No. 10-0956127 Korean Patent No. 10-1019794

However, the above-mentioned prior arts 1 to 5 have a disadvantage in that the work for installing the cooling structure is considerably cumbersome and inconvenient, that is, welding is performed in a large area on the housing of the heat exchanger, The connection line for connection is also connected to each other by welding so that the installation work is troublesome and inconvenient.

In addition, the economic loss due to the troublesome work also has a great disadvantage.

The main object of the present invention to solve the above-mentioned problems of the related art is to provide a sensible heat exchanger which maximizes cooling efficiency and minimizes a welded area and minimizes a pressure generating area to improve durability And to provide a cooling apparatus for the same.

Another object of the present invention is to improve assembly and production efficiency.

According to an aspect of the present invention, there is provided a cooling device provided around a combustion chamber formed in a housing of a sensible heat exchanger, the cooling device including: an inlet chamber through which water flows into one side of a housing; A supply chamber formed so as to be supplied to the heat exchange unit of the sensible heat exchanger after heat exchange in the process of circulating the inflow water therethrough; And a plurality of cooling pipes, one end of each of which is connected to the inlet chamber, protrudes outwardly from the rear surface and the other side of the housing, and is connected to circulate water simultaneously through the front surface into the supply chamber.

The plurality of cooling pipes are arranged vertically and horizontally at regular intervals.

The plurality of cooling pipes are integrally bent so that each tube is mounted on the inlet chamber, the supply chamber, the rear surface, the other side surface, and the front surface of the housing.

Wherein the plurality of cooling pipes are welded and fixed to the inner surface of the rear surface and the front surface of the housing to which the sensible heat is directly in contact and welded on both sides connected to the inlet chamber and the supply chamber, Only the straight section is welded and fixed.

The plurality of cooling pipes are formed by pipes or corrugated pipes.

The present invention maximizes the cooling efficiency, minimizes the welding area and minimizes the pressure generating area, thereby improving the durability, thereby securing a long service life without deformation or breakage, and securing high reliability It has an effect.

In addition, since the assembly and production efficiency can be improved, not only excellent economical efficiency but also mass production can be achieved in a short time, thereby reducing the overall production cost.

1 is a partially exploded perspective view for explaining the present invention,
2 is a one-sided perspective view of the combined state according to Fig. 1,
FIG. 3 is a perspective view of another side in the combined state according to FIG. 1,
Fig. 4 is a vertical sectional view according to Fig. 2,
Figure 5 is a partial cross-sectional view according to Figure 2;

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The present invention is not limited to the embodiments.

1 is a partially exploded perspective view for explaining the present invention, Fig. 2 is a perspective view of one side in a coupled state according to Fig. 1, Fig. 3 is a perspective view of another side in a combined state according to Fig. 1, Fig. 5 is a partial cross-sectional view according to Fig. 2; Fig.

As shown in the figure, a conventional sensible heat exchanger 100 having a condensing boiler capable of maximizing thermal efficiency with minimum fuel consumption is disclosed.

A conventional sensible heat exchanger 100 includes a housing 110 provided with a combustion chamber 112 in which a high temperature thermal energy is generated by combustion of fuel of a burner and a combustion chamber 112 which is provided in a lower housing of the combustion chamber 112 A heat exchanging part 120 composed of a plurality of heat exchange pipes 122 including a plurality of heat exchange fins for exchanging heat with circulated water and a heat exchanging part 120 for generating heat in the combustion chamber 112 in the housing 110 in which the combustion chamber 112 is located. And a cooling device (1) provided to prevent the high-temperature heat energy from being transmitted to the outside of the combustion chamber (112).

The present invention maximizes the cooling efficiency, minimizes the welding area and minimizes the pressure generating area, thereby improving durability.

The cooling device 1 according to the present invention includes an inlet chamber 10 having an inlet 12 through which water flows into one side 110a of the housing 110, A supply chamber 20 in which the discharge port 22 is formed to be supplied to the heat exchange unit 120 of the sensible heat exchanger 100 after heat exchange in the circulation process; And one end is connected to the inlet chamber 10 and protrudes outwardly from the rear surface 110b and the other side surface 110c of the housing 110 and then simultaneously to the supply chamber 20 via the front surface 110d. And a plurality of cooling pipes (30) connected to be circulated. The inlet chamber and the supply chamber are press-formed on the metal plate and fixed to one side of the housing by welding or the like in a usual fixing manner.

The cooling device of the present invention has a condition capable of minimizing the pressure generating area due to combustion. That is, the inlet chamber formed at one side of the housing and the supply chamber are not exposed to high pressure during combustion due to relatively low temperature water flowing into the inlet chamber. In addition, since the plurality of cooling pipes located on the other side are formed of a plurality of cooling pipes in the form of tubes instead of having a large area such as the inflow chamber and the supply chamber, the conditions for minimizing the pressure generating area with the housing .

Accordingly, it has a condition to prevent problems such as deformation or damage due to a wide pressure generating area in burning, or cracks occurring in the joint parts.

The plurality of cooling pipes 30 are arranged vertically and horizontally at regular intervals so as to have high cooling efficiency due to the characteristics of the cooling device. That is, the water introduced into the inlet of the inlet chamber collectively flows into the plurality of cooling pipes arranged in parallel vertically, circulates through the supply chamber, and circulates to the heat exchanger. As a result, It has conditions that can be maximized.

Each of the plurality of cooling pipes 30 has a structure in which each of ordinary tubes through which water can flow is connected to the inlet chamber 10 and the supply chamber 20 and the rear surface 110b and the other side surface 110c of the housing 110, And the front surface 110d. That is, the plurality of cooling pipes are integrally formed instead of joining the straight portion and the curved portion by connection welding or the like, thereby simplifying the manufacturing process and facilitating assembly into the housing.

In other words, since the plurality of cooling pipes are integrally formed, they are simply inserted into the one side surface and the other side surface of the housing through the respective through holes through which the plurality of cooling pipes are inserted, and then, By being connected to the chamber, the assembly can be carried out easily, conveniently and quickly.

In addition, since the coupling groove corresponding to the cooling pipe is formed on the rear surface and the front surface of the housing by a conventional method, the fixed state is maintained in a form that is set naturally at the time of assembly.

Both sides of the plurality of cooling pipes 30 connected to the inlet chamber 10 and the supply chamber 20 are connected to the rear face 110b of the housing 110 and the inner face of the front face 110d, And the portion protruding from the other side surface 110c is welded and fixed only in a straight section except for bent portions on both sides.

By forming the cooling pipe at a position where the sensible heat is directly in contact, the cooling efficiency can be further increased.

The welding portion of the present invention is welded only to the portion for fixing the cooling pipe, that is, the portion where the inlet chamber and the supply chamber abut, and the portion where the front surface and the inner surface of the rear surface are joined, And has a condition capable of minimizing the welding area.

Accordingly, not only the convenience of assembling work but also the welding work can be easily accomplished in a short time without inconvenience or inconvenience, so that it has high assembling efficiency and production efficiency, and also has excellent economical efficiency.

Accordingly, the present invention maximizes the cooling efficiency, minimizes the welding area, and minimizes the pressure generating area, thereby further improving the durability.

Meanwhile, the plurality of cooling pipes 30 may be a conventional hollow pipe, or a common corrugated pipe not shown in order to enhance the cooling efficiency. That is, the corrugated tube has the same cross-sectional area and thus has an advantage that the cooling efficiency can be further increased.

Further, in the case of the corrugated pipe, since it is cut into a required length without using any bending formation, it is convenient and easy to assemble.

1: Cooling unit
10: inlet chamber 12: inlet
20: supply chamber 22: outlet
30: cooling pipe 100: sensible heat exchanger
110: housing 110a: one side
110b: rear surface 110c: other side
110d: front surface 120: heat exchange part
122: Heat exchange pipe

Claims (5)

A cooling device provided around a combustion chamber formed inside a housing of a sensible heat exchanger,
Wherein the cooling device comprises: an inlet chamber into which water is introduced into one side of the housing; a supply chamber formed to be supplied to a heat exchange unit of the sensible heat exchanger after heat exchange in circulation of water introduced through the inlet chamber; And
And a plurality of cooling pipes, one end of which is connected to the inlet chamber and is protruded to the outside of the rear surface and the other side of the housing, and then connected to the supply chamber at the same time so as to circulate water. Cooling system of the machine. The method according to claim 1,
Wherein the plurality of cooling pipes are arranged vertically in parallel at regular intervals. 3. The method of claim 2,
Wherein the plurality of cooling pipes are integrally bent so that each tube is mounted on the inlet chamber, the supply chamber, the rear surface, the other side surface, and the front surface of the housing. The method of claim 3,
Wherein the plurality of cooling pipes are welded and fixed to the inner surface of the rear surface and the front surface of the housing to which the sensible heat is directly in contact and welded on both sides connected to the inlet chamber and the supply chamber, Is welded and fixed. The method according to claim 1,
Wherein the plurality of cooling pipes are formed as tubes or corrugated tubes.

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