KR102332115B1 - Boiler heat exchanger - Google Patents

Abstract

The present invention relates to a total heat exchanger for a boiler, comprising a first heat exchanger for heating heating water by a heat exchange action, and a second heat exchanger for heating heating water flowing inside the lower portion of the first heat exchanger by heat exchange action, , By installing a sealing member that blocks exhaust gas from leaking to the outside between the edges of the first and second heat exchangers, and installing fillers for pressing and pressing the sealing member on both sides of the lower end of the first heat exchanger, the lower end of the first heat exchanger The sealing member is press-fitted while pressing and pressing the sealing member, so that the sealing member is prevented from being separated between the first heat exchanger and the second heat exchanger.
According to the present invention, by pressing and pressing the sealing member closing between the first heat exchanger and the second heat exchanger with fillers installed on both sides of the bottom surface of the first heat exchanger, the sealing member is separated between the first heat exchanger and the second heat exchanger. Due to the separation prevention of the sealing member, the gap between the first heat exchanger and the second heat exchanger is tightly closed, and there is no risk of exhaust gas leaking out through the gap between them, and this exhaust gas leakage is prevented The exhaust gas in the first heat exchanger is supplied to the second heat exchanger as it is, and the heating performance of the second heat exchanger is improved by heating the second heat exchanger with a predetermined amount of exhaust gas. Some of the exhaust gas moving to the second heat exchanger through the lower side is blocked from being transmitted to the sealing member.

Description

Total heat exchanger for boiler {Boiler heat exchanger}

The present invention relates to a total heat exchanger for a boiler, and more particularly, by installing a filler for pressing and pressing the sealing member between the edges of the first heat exchanger and the second heat exchanger, the sealing member is installed between the first heat exchanger and the second heat exchanger. It relates to a total heat exchanger for a boiler that prevents separation.

In general, boilers are installed in various buildings, such as homes, offices, or other factories, and supply hot water and heating water through heat exchange with a heat source generated by burning a mixed fuel in which air and gas are mixed.

To this end, the boiler receives and mixes air and gas from the outside, and then a fuel supply that supplies the mixed fuel to the burner, and a fuel supply that receives the mixed fuel from the fuel supply and burns it by an ignition device to generate a flame. and a heat exchanger for heating the heating return with heating water by allowing the burner and the heating return water to exchange heat with the heat source supplied from the burner.

In particular, in recent years, there are many condensing heat exchangers having a sensible heat exchanger in which heating return water exchanges primary heat with sensible heat generated by the burner and a latent heat exchanger in which heating return water exchanges secondary heat with combustion gas that has completed heat exchange in the sensible heat exchanger. A boiler having such a condensing heat exchanger is called a condensing boiler.

In addition, heating and hot water boilers used at home can be divided into oil boilers and gas boilers according to the fuel used.

Patent Document 1 shows a conventional heat exchanger. Referring to this, it has an open upper and lower hollow shape, a first heat absorbing plate is formed inside it, and a sensible heat exchange part coupled with a burner on the upper part, and a lower part of the sensible heat exchange part A latent heat exchange part connected to and formed with a second heat absorbing plate inside it, a copper pipe formed in a tubular shape to pass through the first heat absorbing plate of the sensible heat exchange part, and connected to the copper pipe, but the second heat absorbing plate of the latent heat exchange part is fixed It is connected to the lower part of the stainless pipe and the latent heat exchange part so as to be extended and is composed of first and second heat absorbing plates and a copper pipe, and a condensate discharge part for discharging the condensed water falling from the outer surface of the stainless pipe to the outside.

Here, a means for preventing corrosion is installed between the flange of the latent heat exchange unit and the condensate discharge unit to close the gap between the latent heat exchange unit and the condensate discharge unit.

After that, when the metal fiber burner of the burner is driven to eject a flame to the sensible heat exchange unit, the flame is burned to generate high-temperature exhaust gas, and the exhaust gas is combined with the first heat absorbing plate and copper pipe located in the sensible heat exchange unit. After the heat exchange, it moves downward and is supplied to the latent heat exchange unit.

In addition, the exhaust gas supplied to the latent heat exchange unit heats the second heat absorbing plate and the stainless pipe while performing heat exchange with the second heat absorbing plate and the stainless pipe, and then is discharged through the condensed water discharge unit.

At this time, the copper pipe and the stainless pipe through which the heating water passes are heated by heat exchange with the exhaust gas and heat from the first and second heat absorbing plates, and in this state, the copper pipe and the stainless pipe are heated by the heat exchange action with the heating water passing through the inside. heating the water.

In particular, the exhaust gas supplied to the latent heat exchange unit is blocked by the means for preventing corrosion, and is prevented from being discharged to the outside through a gap between the latent heat exchange unit and the condensate discharge unit.

However, in Patent Document 1 as described above, exhaust gas leaks to the outside through a gap between the flange connecting the sensible heat exchange part and the latent heat exchange part, and the user breathes the leaked gas as it is, causing disease, and , If the corrosion prevention means that closes the flat ground between the latent heat exchange part and the condensate discharge part is not fixed in a stable position, the function of sealing the gap between the condensate discharge part is lost. The heating performance of the first and second heat absorbing plates, copper pipe, and stainless pipe rapidly deteriorates as it leaks to the outside through the gap between the gaps and the gap between the latent heat exchange part and the condensate discharge part. Since the heating water is not heated, there is a great difficulty in supplying heating and hot water, and accordingly, there is a problem that the reliability of the product is reduced.

US 20-2000-0008514 U

The present invention is to solve the above problems, and an object of the present invention is to provide a first heat exchanger for heating heating water through a heat exchange action, and convert the heating water flowing inside the lower portion of the first heat exchanger into a heat exchange action It has a second heat exchanger for heating, a sealing member for blocking exhaust gas from leaking to the outside is installed between the edges of the first and second heat exchangers, and a filler for pressing and pressing the sealing member on both sides of the lower end of the first heat exchanger By installing a filler fitted at the bottom of the first heat exchanger, the sealing member is press-fitted while pressing the sealing member, thereby preventing the sealing member from being separated between the first heat exchanger and the second heat exchanger. Provide a total heat exchanger for boilers will do

In order to achieve the object of the present invention as described above, a total heat exchanger for a boiler according to the present invention includes a first heat exchanger that heats the heating water through a heat exchange action while passing the heating water therein; a second heat exchanger installed under the first heat exchanger and receiving exhaust gas discharged to the lower part of the first heat exchanger and heated by a heat exchange action to heat the heating water flowing therein; and a sealing member fixed closely between the rim of the first heat exchanger and the second heat exchanger to block the exhaust gas from leaking to the outside through a gap between the first heat exchanger and the second heat exchanger. In the device, the first heat exchanger is fitted and fixed symmetrically on both sides of the lower end, and by pressing and pressing the sealing member, a filler is further formed to block the separation of the sealing member between the first and second heat exchangers. characterized in that

In the total heat exchanger for a boiler according to the present invention, the first heat exchanger includes: a hollow housing having an open lower portion; It is installed in plurality and is composed of a heat transfer plate portion that heats the heating water by a heat exchange action while passing the heating water inside, and the filler is fixed between the housing and the heat transfer plate portion to press and press the sealing member. do.

In the total heat exchanger for a boiler according to the present invention, the filler comprises: a plate-like finish plate for closing a gap between the housing and the heat transfer plate; It is characterized in that it comprises a; is formed to extend from one end of the closing plate portion, is bent at least once in the direction of the sealing member, and presses the sealing member edge by pressing the pressing plate portion.

In the total heat exchanger for a boiler according to the present invention, the filler is formed to protrude from the upper surface of the finish plate in a direction orthogonal to the finish plate part, and is fitted into a gap between the housing and the heat transfer plate part. It is characterized in that it is formed further.

In the total heat exchanger for a boiler according to the present invention, the filler is press-fitted to both ends of the closing plate portion at both ends of the lower end of the housing, and a second fitting member for preventing the filler from being separated between the housing and the heat transfer plate portion It is characterized in that further formed.

In the total heat exchanger for a boiler according to the present invention, the second fitting member includes: a contact plate portion bent to correspond to the shape of both sides of the lower end of the housing and closely attached to both sides of the lower end of the housing; It is characterized in that it is composed of a; is formed extending from both ends of the closing plate portion, bent in the direction of the close contact plate portion is formed to be hooked on both sides of the lower end of the housing;

In the total heat exchanger for a boiler according to the present invention, the filler further comprises an induction wall for guiding the exhaust gas or condensed water generated in the housing to fall toward the second heat exchanger.

In the total heat exchanger for a boiler according to the present invention, the induction wall is formed to be inclined downward at a predetermined angle toward the central portion of the second heat exchanger.

In the total heat exchanger for a boiler according to the present invention, the closing plate portion is characterized in that the length is formed relatively shorter than the length between the lower both ends of the housing.

In the total heat exchanger for a boiler according to the present invention, the pressing plate portion 402 is characterized in that a plurality of cut-out grooves 402a are further formed on the upper surface to be spaced apart from each other by a predetermined interval.

In the total heat exchanger for a boiler according to the present invention, the first heat exchanger 100 is installed on both sides of the lower end in a direction orthogonal to the filler, and a side filler 104 that allows both ends of the filler to be fixed. forming, and the filler 400 is press-fitted to the side pillars at both ends to prevent the filler from being separated between the housing 101 and the heat transfer plate 103. A second fitting member 404 is provided. It is characterized in that it is formed further.

According to the present invention, by pressing and pressing the sealing member closing between the first heat exchanger and the second heat exchanger with fillers installed on both sides of the bottom surface of the first heat exchanger, the sealing member is separated between the first heat exchanger and the second heat exchanger. Due to the separation prevention of the sealing member, the gap between the first heat exchanger and the second heat exchanger is tightly closed, and there is no risk of exhaust gas leaking out through the gap between the first heat exchanger and the second heat exchanger. The gap between the first heat exchanger and the second heat exchanger is firmly closed even when overpressure is generated due to the explosion ignition of the exhaust gas and vibration of the total heat exchanger occurs, and there is no risk of exhaust gas leaking out through the gap between the first and second heat exchangers. By preventing exhaust gas leakage, the exhaust gas in the first heat exchanger is directly supplied to the second heat exchanger, and the heating performance of the second heat exchanger is improved by heating the second heat exchanger with a predetermined amount of exhaust gas. By blocking some of the exhaust gas moving to the second heat exchanger through the lower side of the first heat exchanger from being transferred to the sealing member, there is no risk of heating the sealing member, and the use of the sealing member by blocking the heating of the sealing member As the period is increased, the maintenance cost is reduced, and the reliability of the product is improved.

1 is a perspective view showing a total heat exchanger for a boiler according to the present invention.
Figure 2 is an exploded perspective view of Figure 1;
3 is a bottom perspective view showing a state in which the filler is disassembled in the first heat exchanger of the total heat exchanger for a boiler according to the present invention;
4 is a side cross-sectional view of a total heat exchanger for a boiler according to the present invention.
5 is a perspective view showing a state in which the filler is coupled to the first heat exchanger of the total heat exchanger for a boiler according to the present invention.

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

1 to 5 , the total heat exchanger for a boiler according to the present invention includes a first heat exchanger 100 , a second heat exchanger 200 , a sealing member 300 , and a filler 400 .

The first heat exchanger 100 heats the heating water through a heat exchange action while passing the heating water therein.

The first heat exchanger 100 includes a hollow housing 101 with an open lower portion, and a burner 102 installed on the inner upper portion of the housing 101 to eject a flame into the inner space of the housing 101 . and a heat transfer plate unit 103 installed in a plurality of layers in the housing 101 and heating the heating water through a heat exchange action while passing the heating water therein.

The burner 102 is preferably a metal fiber burner.

It is preferable that the heat transfer plate part 103 is formed in a plate shape and closely coupled in plurality.

The heat transfer plate part 103 forms a passage hole 103a through which the heating water passes through one surface thereof, and is laminated and coupled in plurality to guide the heating water to flow through the passage hole 103a.

The first heat exchanger 100 is installed on both sides of the lower end in a direction orthogonal to the filler 400 to further form lateral pillars 104 that allow both ends of the filler 400 to be fixed.

The lateral filler 104 prevents the filler 400 from being separated from both sides of the lower end of the first heat exchanger 100 .

The lateral pillar 104 presses and presses the sealing member 300 installed in a direction perpendicular to the pillar 400 .

The height of the side pillars 104 is preferably formed to protrude to a height corresponding to the pillars 400 .

The second heat exchanger 200 is installed under the first heat exchanger 100, receives the exhaust gas discharged to the lower portion of the first heat exchanger 100, is heated by heat exchange action, and the heating water flowing therein heat up

The second heat exchanger 200 is closely fixed to the lower edge of the first heat exchanger, and receives exhaust gas discharged to the lower portion of the first heat exchanger.

A plurality of the second heat exchanger 200 is laminated therein to form a latent heat plate 201 heated by heat exchange with exhaust gas.

The latent heat plate 201 further forms a heating water hole 201a through which heating water passes on one surface.

The latent heat plate 201 is laminated and coupled in plurality to guide the heating water to flow through the heating water hole 201a.

The second heat exchanger 200 forms a pair of protrusions 202 parallel to each other on both sides of the upper surface corresponding to the pillar 400 .

The protrusion 202 may include condensed water falling to the upper edge of the second heat exchanger 200 flows into the inner space of the second heat exchanger 200 or the first heat exchanger 100 and the second heat exchanger 200 . ) to prevent exhaust gas from leaking through the

The sealing member 300 is closely fixed between the edges of the first heat exchanger 100 and the second heat exchanger 200 to close the gap between the first heat exchanger 100 and the second heat exchanger 200 . It prevents exhaust gas from leaking to the outside.

The sealing member 300 is closely fixed between the edges of the first heat exchanger 100 and the second heat exchanger 200 to block the exhaust gas from leaking.

The sealing member 300 is pressed against the pressure plate portion 402 of the filler 400 to be firmly fixed between the edges of the first heat exchanger 100 and the second heat exchanger 200 .

The sealing member 300 is formed in a "ㅁ" shape, and closes between the edges of the first heat exchanger 100 and the second heat exchanger 200 .

The upper surface of the sealing member 300 is pressed by the pressing plate portion 402, and the upper surface not pressed by the incision groove 402a formed in the pressing plate portion 402 is exposed upwards, It is caught on the wall of the cut-out groove 402a, and is blocked from flowing left and right.

A portion of the sealing member 300 installed in a direction perpendicular to the portion pressed by the pillar 400 is pressed and pressed against the side pillar 104, and the first heat exchanger 100 and the second heat exchanger 200 ) to prevent the exhaust gas from leaking to the outside through the gap between them.

The filler 400 is symmetrically fitted to both sides of the lower end of the first heat exchanger 100 , and the sealing member 300 is pressed and pressed, so that the sealing member 300 is formed between the first and second heat exchangers. It blocks deviations between (100, 200).

The filler 400 is fitted between the housing 101 and the heat transfer plate 103 to press and press the sealing member 300 .

The filler 400 has a plate shape and is formed to extend from one end of the closing plate part 401 and the closing plate part 401 for closing a gap between the housing 101 and the heat transfer plate part 103, and the sealing member 300 ) is bent at least once in the direction, and is composed of a pressing plate portion 402 for pressing and pressing the edge of the sealing member 300 .

The closing plate part 401 blocks a portion of the exhaust gas moving from the first heat exchanger 100 to the second heat exchanger 200 from moving to the sealing member 300 .

The length of the closing plate portion 401 is relatively shorter than the length between both lower ends of the housing 101 .

The pressing plate part 402 presses and presses one end of the sealing member 300 to block the sealing member 300 from being exposed in the direction of the inner space of the first and second heat exchangers 100 and 200 .

The pressing plate part 402 may be formed in plurality to be spaced apart from each other at a predetermined interval along the longitudinal direction of the closing plate part 401 .

The pressure plate portion 402 further forms a plurality of cut-out grooves 402a spaced apart from each other at a predetermined interval on the upper surface.

The cut-out groove 402a allows the sealing member 300 to be convexly exposed upwardly, while the convexly protruding portion of the sealing member 300 is caught, so that the sealing member 300 flows to the left and right. block that

The filler 400 is formed to protrude from the top surface of the finish plate part 401 in a direction perpendicular to the finish plate part 401 and is fitted and fixed into a gap between the housing 101 and the heat transfer plate part 103 . A fitting member 403 is further formed.

The first fitting member 403 blocks the filler 400 from falling off between the housing 101 and the heat transfer plate 103 .

A plurality of the first fitting members 403 are formed to be spaced apart from each other by a predetermined interval on the upper surface of the closing plate portion 401 .

The filler 400 is press-fitted at both ends of the closing plate portion 401 at both ends of the lower end of the housing 101 , so that the filler 400 is separated between the housing 101 and the heat transfer plate portion 103 . A second fitting member 404 is further formed to prevent it.

The filler 400 is press-fitted to the side pillars 104 at both ends, so that the filler 400 is prevented from being separated between the housing 101 and the heat transfer plate 103. A second fitting member 404 ) to form more

The second fitting member 404 of the pillar 400 may be press-fitted and fixed to both sides of the lower end of the housing 101 or to the side pillar 104 .

The second fitting member 404 blocks both ends of the filler 400 from being separated from the lower end of the housing 100 .

The second fitting member 404 is bent to correspond to the shape of both sides of the lower end of the housing 101 and extends from both ends of the contact plate portion 404a that is in close contact with both sides of the lower end of the housing 101 , and the end plate portion 401 . It is formed, and is formed to be bent in the direction of the contact plate portion 404a, and is composed of a locking plate portion 404b that is hooked and fixed to both sides of the lower end of the housing 101 .

The contact plate portion 404a is closely fixed to the bottom surfaces of both ends of the housing 101 .

The locking plate portion 402b enters the inner bottom surface of the housing 101 corresponding to the contact plate portion 404a, and is closely engaged with the inner bottom surface of the housing 101 .

The filler 400 further forms a guide wall 405 for guiding the exhaust gas or condensed water generated in the housing 101 to fall toward the second heat exchanger 200 .

The guide wall 405 guides the exhaust gas to move downward or induces the condensed water to fall downward, so that the exhaust gas or condensed water moves in the direction of the sealing member 300 along the bottom surface of the closing plate part 401 . block doing

The guide wall 405 is bent at the other end of the closing plate 401 opposite to the pressing plate 402 to limit the movement of exhaust gas or condensed water.

The guide wall 405 is formed to be inclined downward at a predetermined angle toward the central portion of the second heat exchanger 200 .

The guide wall 405 guides the exhaust gas or condensed water to move toward the center of the second heat exchanger 200 .

The total heat exchanger for a boiler according to the present invention configured as described above is used as follows.

First, a first heat exchanger 100 is provided, and the filler 400 is fitted and fixed on both sides of the lower end of the first heat exchanger 100, and the housing of the first heat exchanger 100 is used as the filler 400 ( 101) and the gap between the heat transfer plate part 103 is closed.

Here, a first fitting member 403 is formed on the upper surface of the closing plate portion 401 of the filler 400 , and the first fitting member 403 is inserted into a gap between the housing 101 and the heat transfer plate portion 103 . By fitting and fixing with a , the closing plate part 401 is positioned between the housing 101 and the heat transfer plate part 103 , so that a gap between the housing 101 and the heat transfer plate part 103 is formed in the closing plate part 401 . is closed by

At this time, the pressing plate part 402 formed by bending and extending from one end of the closing plate part 401 is positioned to face the edge of the bottom surface of the first heat exchanger 100 .

Then, the second fitting members 404 formed at both ends of the closing plate portion 401 of the filler 400 are fitted and fixed to the side pillars 104 installed at both ends of the housing 101, and the end plate portion 401 is both ends. This is to be fixed to both ends of the side pillar 104.

That is, the close contact plate portions 404a formed at both ends of the closing plate portion 401 are in close contact with the bottom surfaces of both ends of the side pillars 104, and in that state, the engaging plate portions 404b are located on the side corresponding to the contact plate portion 404a. By fixing the second fitting member 404 to the side pillar 104 by closely engaging the bottom surfaces of both sides inside the filler 104, the closing plate part 401 is connected to the housing 101 and the heat transfer plate part. Close the gap between (103).

Thereafter, a second heat exchanger 200 is provided under the first heat exchanger 100 so that the edge of the first heat exchanger 100 and the edge of the second heat exchanger 200 are positioned on the same vertical line. and the sealing member 300 is seated on the upper edge of the second heat exchanger 200 .

Then, the rim of the first heat exchanger 100 is brought into close contact with the rim of the upper surface of the second heat exchanger 200 , and the sealing is between the rim of the first heat exchanger 100 and the second heat exchanger 200 . The member 300 is tightly fixed.

At this time, the pressing plate portion 402 formed on the pillar 400 presses and presses one end of the sealing member 300 to press-fit the sealing member 300, and accordingly, the sealing member 300 is the pillar ( It is firmly fixed by being pressed by the pressing plate portion 402 of the 400).

In particular, the side pillars 104 installed in a direction perpendicular to the pillar 400 are installed in a direction perpendicular to the sealing member 300 pressed and pressed by the pillar 400 at the same time as the pillar 400 . By pressing the member 300, the sealing member 300 installed on the rim between the first and second heat exchangers 100 and 200 is pressed and pressed in the shape of “ㅁ”.

In addition, protrusions 202 are formed on both sides of the upper surface of the second heat exchanger 200 corresponding to the filler 400, and the condensed water or the first and first Blocks the condensed water generated at the edge between the two heat exchangers 100 and 200 from flowing into the inner space of the second heat exchanger 200 , or exhausts the first heat exchanger 100 or the second heat exchanger 200 . Prevent gas from leaking to the outside.

In addition, the sealing member 300 is caught on the wall surface of the cut-out groove 402a while the upper surface formed to be pressed by the cut-out groove 402a is exposed above the cut-out groove 402a, and is blocked from flowing left and right. .

Then, the burner 102 installed in the first heat exchanger 100 of the total heat exchanger for a boiler configured as described above is driven to burn the flame in the burner 102, and at this time, the high temperature generated while the flame is burned The exhaust gas heats the heat transfer plate 103 installed in the housing 101 .

Here, a plurality of the heat transfer plate parts 103 are laminated and coupled to pass the heating water through the passage hole 103a and heat the heating water passing through the passage hole 103a while being heated by a heat exchange action with the exhaust gas. Thus, hot water is obtained.

In addition, the exhaust gas heated by the heat transfer plate 103 in the housing 101 of the first heat exchanger 100 is moved downward and supplied into the second heat exchanger 200 .

At this time, among the exhaust gases moving from the first heat exchanger 100 to the second heat exchanger 200, the exhaust gas moving directly downward along the inner wall surface of the housing 101 of the first heat exchanger 100 is It is blocked by the closing plate portion 401 of the filler 400 and is blocked from moving in the direction of the sealing member 300 , and accordingly, the sealing member 300 is prevented from being heated by the high-temperature exhaust gas.

In addition, the exhaust gas blocked by the closing plate part 401 is moved along the upper surface of the closing plate part 401 and the exhaust gas reaching the other end of the closing plate part 401 is guided to the guide wall 405 and the first The second heat exchanger 200 is moved obliquely downward toward the central portion, riding on the bottom surface of the closing plate 401 and blocking the movement of exhaust gas in the direction of the sealing member 300 .

On the other hand, after the heat transfer plate part 103 of the first heat exchanger 100 is heated by a heat exchange action with the exhaust gas, condensed water is formed on the outer surface while heating the heating water passing through the passage hole 103a. , the condensed water falls directly downward in the direction of the second heat exchanger 200 .

On the other hand, condensed water falling from the heat transfer plate part 103 formed close to the filler 400 falls to the closing plate part 401 and flows in the other end direction of the closing plate part 401, and at this time, the closing plate part 401 ) The condensed water that has reached the other end falls into the second heat exchanger 200 along the induction wall 405, and the condensed water rides the bottom surface of the closing plate 401 and moves toward the sealing member 300. Blocking do.

And, the exhaust gas supplied to the inside of the second heat exchanger 200 heats the latent heat plate 201 laminated and bonded in plurality inside the second heat exchanger 200, and accordingly, the latent heat plate 201 is heated by heat exchange.

Thereafter, the heating water passing through the heating water hole 201a of the latent heating plate 201 is heated by receiving the heat of the latent heating plate 201 , so that the heating water is changed into hot water.

Subsequently, the exhaust gas that has heated the latent heat plate 201 in the second heat exchanger 200 is discharged to the outside through the lower portion of the second heat exchanger 200 , and also the first heat exchanger 100 . And the condensed water formed on the outer surfaces of the heat transfer plate 103 and the latent heat plate 201 of the second heat exchanger 200 falls directly downward and is discharged to the outside through the lower portion of the second heat exchanger 200 .

In the above description, both ends of the filler 400 are fitted to the side pillars 104 as an example.

As described above, the structure in which the filler 400 is installed between the edges of the first heat exchanger 100 and the second heat exchanger 200, and the sealing member 300 is pressed with the filler 400, is the first heat exchange By pressing and pressing the sealing member 300 closing between the first heat exchanger 100 and the second heat exchanger 200 with the fillers 400 installed on both sides of the bottom surface of the machine 100, the sealing member 300 is the first The separation between the heat exchanger 100 and the second heat exchanger 200 is prevented, and due to the separation prevention of the sealing member 300 , the separation between the first heat exchanger 100 and the second heat exchanger 200 is prevented. The gap is tightly closed, so there is no risk of exhaust gas leaking out through the gap between the gaps, and the exhaust gas in the first heat exchanger 100 is supplied to the second heat exchanger 200 as it is by preventing the exhaust gas leak. Thus, the heating performance of the second heat exchanger 200 is improved by heating the second heat exchanger 200 with a predetermined amount of exhaust gas.

The total heat exchanger for a boiler having an insulating material fixed frame according to the present invention described above is not limited to the above-described embodiment, and it is common in the field to which the present invention belongs without departing from the gist of the present invention as claimed in the following claims. It has the technical spirit to the extent that anyone with knowledge can change and implement it in various ways.

100: first heat exchanger 101: housing
102: burner 103: heat transfer plate part
103a: through hole 200: second heat exchanger
201: latent heat plate 201a: heating water hole
300: sealing member 400: filler
401: closing plate portion 402: pressing plate portion
403: first fitting member 404: second fitting member
404a: adhesion plate portion 404b: locking plate portion
405: guide wall

Claims (11)

a first heat exchanger 100 that heats the heating water through a heat exchange action while passing the heating water inside;
A second heat exchanger (200) installed under the first heat exchanger (100) and receiving the exhaust gas discharged to the lower part of the first heat exchanger (100) and heated by a heat exchange action, heating the heating water flowing therein ); and
The first heat exchanger 100 and the second heat exchanger 200 are closely fixed between the edges, and the exhaust gas leaks out through the gap between the first heat exchanger 100 and the second heat exchanger 200 . a sealing member 300 to block it from being;
In the total heat exchanger for boilers consisting of
The first heat exchanger 100 is symmetrically fitted on both sides of the lower end, and the sealing member 300 is pressed and pressed, so that the sealing member 300 is formed between the first and second heat exchangers 100 and 200 . to form a filler 400 that blocks the departure from
The first heat exchanger 100 includes a hollow housing 101 with an open lower portion, and a burner 102 installed on the inner upper portion of the housing 101 to eject a flame into the inner space of the housing 101 . and a heat transfer plate unit 103 installed in a plurality of layers in the housing 101 and heating the heating water through a heat exchange action while passing the heating water therein,
The filler 400 has a plate shape and is formed to extend from one end of the closing plate part 401 and the closing plate part 401 for closing the gap between the housing 101 and the heat transfer plate part 103, and the sealing member 300 ) is bent at least once in the direction, is formed as a pressing plate part 402 that presses the edge of the sealing member 300, and is fitted between the housing 101 and the heat transfer plate part 103 and fixed Total heat exchanger for boiler, characterized in that the sealing member 300 is pressed and pressed delete delete The method of claim 1,
The filler 400 is
A first fitting member 403 protruding from the upper surface of the closing plate 401 in a direction perpendicular to the closing plate 401 and fitted into a gap between the housing 101 and the heat transfer plate 103 is provided. A total heat exchanger for a boiler, characterized in that it is further formed. The method of claim 1,
The filler 400 is
A second fitting member that is press-fitted to both ends of the closing plate portion 401 on both sides of the lower end of the housing 101 to prevent the filler 400 from being separated between the housing 101 and the heat transfer plate portion 103 . A total heat exchanger for a boiler, characterized in that it further forms (404). 6. The method of claim 5,
The second fitting member 404,
a contact plate portion (404a) bent to correspond to the shape of both sides of the lower end of the housing 101 and in close contact with both sides of the lower end of the housing 101;
a locking plate portion (404b) extending from both ends of the closing plate portion (401), bent in a direction of the contact plate portion (404a), and secured to both ends of the lower end of the housing (101);
A total heat exchanger for a boiler, characterized in that it consists of. According to claim 1,
The filler 400 is
A total heat exchanger for a boiler, characterized in that a guide wall (405) for guiding the exhaust gas or condensed water generated in the housing (101) to fall toward the second heat exchanger (200) is further formed. 8. The method of claim 7,
The guide wall 405 is
The total heat exchanger for a boiler, characterized in that the second heat exchanger (200) is formed to be inclined downward at a predetermined angle toward the central portion. The method of claim 1,
The closing plate portion 401,
The total heat exchanger for a boiler, characterized in that the length is relatively shorter than the length between the lower ends of the housing (101). The method of claim 1,
The pressure plate portion 402,
A total heat exchanger for a boiler, characterized in that a plurality of cut-out grooves (402a) are further formed on the upper surface to be spaced apart from each other by a predetermined interval. The method of claim 1,
The first heat exchanger 100,
It is installed on both sides of the lower end in a direction orthogonal to the filler 400 to further form a lateral filler 104 that allows both ends of the filler 400 to be fixed,
The filler 400 is
A second fitting member 404 that is press-fitted to the side pillars 104 at both ends to prevent the pillar 400 from being separated between the housing 101 and the heat transfer plate 103 is further formed. A total heat exchanger for boilers characterized by its features.

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