JP4894393B2 - Heat source machine - Google Patents

Description

  The present invention relates to a heat exchanger for a first water channel (for example, a hot water supply circuit), a burner for heating the heat exchanger, a heat exchanger for a second water channel (for example, a bath reheating circuit or a hot water heating circuit), and The present invention relates to a heat source apparatus that is configured in a single can multi-channel system by installing a burner for heating the same in a single can body.

  Conventionally, as a heat source machine of this type, a partition plate is disposed between a heat exchanger and burner for the first water channel and a heat exchanger and burner for the second water channel in a single can body, The partition plate is known to partition the first water channel portion and the second water channel portion from each other (see, for example, Patent Document 1 or Patent Document 2).

Japanese Patent Publication No. 2-17784 Japanese Utility Model Publication No. 61-84447

  However, in the above conventional heat source machine, for example, as shown in FIG. 9, the combustion gas is burned from the burner through the gap between the partition plate 201 and the heat exchangers 202 and 203 partitioned by the partition plate 201. (Refer to the arrow in the figure) may pass through, and there is a possibility that the thermal efficiency is reduced. In short, the combustion gases from the burners 204, 205 are all involved in heat exchange, even though they are all in contact with the heat exchangers 202, 203 (eg, heat exchanger fins 206, 207) for heat exchange. Therefore, there is a problem in that the combustion gas from the burners 204 and 205 cannot be used for heat exchange heating in the heat exchangers 202 and 203.

  That is, in the assembling work, the partition plate 201 is disposed between the burners 204 and 205 disposed in the lower part of the can body 208, the lower end thereof is fixed, and the partition plate protrudes upward. The exchanger is covered from above, and the heat exchangers 202 and 203 are assembled in the can body 208 so as to be higher than the burners 204 and 205. At the time of assembly, the partition plate 201 protruding upward is a gap 209 between the heat exchanger 202 for the first water channel and the heat exchanger 203 for the second water channel (so that the partition plate enters). The heat exchangers 202 and 203 are covered from above while aligning so as to enter the gap formed in advance). Since the heat exchangers 202 and 203 themselves are usually composed of a large number of fins 206 and 207 and water pipes passing through these fins, and have a considerable weight, the width of the gap 209 is larger than the thickness of the partition plate. If there is not enough margin, it will be difficult to assemble so that the upper end of the partition plate 201 enters the gap 209. On the other hand, if the width of the gap 209 is too large compared to the partition plate 201, the combustion gas is between the partition plate 201 and the heat exchangers 202 and 203 that are located on both sides of the partition plate 201. A gap is formed through which passes through. Therefore, if the width of the gap is widened in consideration of the ease of assembly work, the larger the gap, the more the passage of combustion gas will increase, leading to a further decrease in thermal efficiency. If the width of the gap 209 is narrowed, the difficulty of the assembly work is caused, and the labor and time of the assembly work are increased, which is not suitable for mass production. In short, the ease of assembly work and the improvement of thermal efficiency are in a trade-off relationship.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a heat source machine that partitions a plurality of waterway burners and heat exchangers from each other in a single can. An object of the present invention is to provide a heat source device that can satisfy both the ease of assembling the partition plate and the improvement of the heat efficiency of the heat exchanger of each water channel.

  In order to achieve the above object, in the present invention, a first burner and a second burner are provided side by side in the lower part of a single can body, and the first heat exchanger is provided in the upper part of the first burner. A heat exchanger is disposed above the second burner, the first heat exchanger is heat exchange heated by the combustion heat of the first burner, and the second heat exchanger is heat exchange heated by the combustion heat of the second burner. The following specific items were provided for the heat source machine configured as described above. That is, a burner partition member that partitions between the first burner and the second burner, and a heat exchanger partition member that partitions between the first heat exchanger and the second heat exchanger, By inserting the heat exchanger partition member from above the gap between both the first heat exchanger and the second heat exchanger, with respect to the burner partition member disposed between the 1 burner and the second burner, The heat exchanger partition member is assembled so as to be in contact with the upper end portion of the burner partition member (claim 1).

  In the case of this invention, since the heat exchanger partition member is in contact with the upper end portion of the burner partition member, the inside of the can is securely connected to the first burner and the first heat exchanger, and the second burner and the second heat exchanger. It is divided and separated. Moreover, the contact with the upper end of the burner partition member is realized by inserting the heat exchanger partition member as a separate part from the first heat exchanger and the second heat exchanger from above the gap between them. Therefore, even if the lateral width of the heat exchanger partition member is set equal to the gap width between the first heat exchanger and the second heat exchanger, the assembly operation of the heat exchanger partition member can be easily performed. It will be. As a result, both the ease of assembling work for forming the partition and the improvement of the thermal efficiency by eliminating the gap through which the combustion gas passes unnecessarily between the heat exchanger partition member and each heat exchanger are achieved. Planning and satisfying both.

  In this invention, the first heat exchanger and the second heat exchanger are configured to include heat-absorbing fins, and the heat exchanger partition member is the fin of both the first heat exchanger and the second heat exchanger. The lateral width can be set so as to come into contact with the end surfaces of the first and second ends, respectively. By doing in this way, a combustion gas will pass through uselessly between a heat exchanger partition member and the 1st heat exchanger and the 2nd heat exchanger which will be located on both sides on both sides of this. It becomes possible to avoid the generation of the gap more reliably, and it is possible to prevent the thermal efficiency from being lowered and to improve it.

  Further, the heat exchanger partition member is formed to be bent downward in a wedge shape by an elastic plate material, and has a free end that opens upward so as to be elastically deformable in the width direction. (Claim 3). By doing so, since it has a wedge shape, the work of inserting and assembling between the first heat exchanger and the second heat exchanger is further facilitated, and for example, the first heat exchanger and If the heat exchanger partition member is inserted and pressed by setting it to have a width that is wider than the gap width between the second heat exchanger by a minute dimension, both sides of the heat exchanger partition member are elastic. It becomes possible to deform so that the first heat exchanger and the second heat exchanger are brought into close contact with each other. Thereby, the improvement in the thermal efficiency can be obtained more reliably.

  Further, the can body is configured by attaching a collective exhaust pipe portion at an upper portion thereof, and the collective exhaust pipe has a first exhaust pipe portion through which the combustion exhaust gas that has passed through the first heat exchanger flows. It is assumed that an exhaust cylinder partitioning member is provided that partitions into a second exhaust cylinder portion through which the combustion exhaust gas that has passed through the second heat exchanger flows. And the said collective exhaust pipe can be assembled | attached in the state which the said exhaust pipe partition member contact | abutted to the upper end part of the said heat exchanger partition member (Claim 4). By doing in this way, it becomes possible to divide and isolate | separate everything in the single can body in the 1st and 2nd reliably to everything from a burner, a heat exchanger, and an exhaust pipe part.

  And, when attaching the collective exhaust tube portion, as the heat exchanger partition member, by receiving a downward pressing force from the exhaust tube partition member during the assembly of the collective exhaust tube portion, and elastically deforming, A pressure receiving portion for applying a downward elastic restoring force to a contact portion with the burner partition member can be provided. In this way, if the collective exhaust cylinder part is assembled and attached, the pressure receiving part is elastically deformed by the pressing force from the exhaust pipe partition member, and the elastic restoring force is applied to the contact portion with the burner partition member. Therefore, the exhaust tube partition member and the heat exchanger partition member, and the heat exchanger partition member and the burner partition member can be reliably brought into close contact with each other. In particular, when dependent on claim 3, it is possible to make the heat exchanger partition member and the first heat exchanger and the second heat exchanger more closely contact each other.

  As described above, according to the heat source apparatus of the present invention, the inside of the can can be surely partitioned and separated into the first burner and the first heat exchanger, and the second burner and the second heat exchanger. it can. Moreover, even if the lateral width of the heat exchanger partition member is set equal to the gap width between the first heat exchanger and the second heat exchanger, the assembly operation of the heat exchanger partition member can be easily performed. become. As a result, both the ease of assembling work for forming the partition and the improvement of the thermal efficiency by eliminating the gap through which the combustion gas passes unnecessarily between the heat exchanger partition member and each heat exchanger are achieved. Both can be satisfied.

  According to the second aspect, the combustion gas passes unnecessarily between the heat exchanger partition member and the first heat exchanger and the second heat exchanger that are located on both sides of the heat exchanger partition member. Generation of the gap can be avoided more reliably, and a reduction in thermal efficiency can be prevented and improvement thereof can be achieved.

  According to the third aspect of the present invention, it is possible to further facilitate the work of inserting and assembling between the first heat exchanger and the second heat exchanger by bending the wedge shape. Due to the elastic deformation of both side portions of the partition member, it is possible to expect the realization of a close contact with the first heat exchanger and the second heat exchanger with certainty. As a result, the above-described improvement in thermal efficiency can be obtained more reliably.

  According to the fourth aspect of the present invention, it is possible to reliably divide and separate all of the single can body from the burner, the heat exchanger, and the exhaust tube part into the first and second.

  According to the fifth aspect, the exhaust pipe partition member and the heat exchanger partition member, and the heat exchanger partition member and the burner partition member can be reliably brought into close contact with each other by the elastic restoring force from the pressure receiving portion. It becomes like this. In addition, when dependent on claim 3, the heat exchanger partition member and the first heat exchanger and the second heat exchanger can be more reliably brought into close contact with each other.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 shows a can body of a heat source machine according to a first embodiment of the present invention. This heat source machine has a first burner 31 and a first heat exchanger 32 for a first water channel (for example, a hot water supply circuit) and a second water channel (for example, a reheating circuit for a bath or hot water) for a single can 2. Both the second burner 41 and the second heat exchanger 42 for the circulation type heating circuit) are incorporated. That is, the can body 2 is configured in a single can / two water channel type.

  The can body 2 is formed by joining the burner can body portion 21, the heat exchange can body portion 22, and the collective exhaust tube portion 23 so as to be stacked in this order. The burner can body portion 21 is provided with a blower fan (not shown) at a lower position or the like. The first burner 31 is preliminarily placed in one side of the case 211 in the horizontal direction (the right side in the figure) and the second burner 41 is horizontally placed. It is installed at each position on the other side of the direction (left side of the figure). In the heat exchange can body 22, the first heat exchanger 32 and the second heat exchanger 42 are installed in advance in the barrel-shaped case 221 at one side in the horizontal direction and at the other side in the horizontal direction, respectively. Is. Each of the heat exchangers 32 and 42 is configured in a fin-and-tube type from a large number of fins 321 and 421 and water pipes 322 and 422 passing through the fins 321 and 421. In addition, the 1st burner 31 and the 2nd burner 41 are comprised by the combination of the single or several unit burner, respectively.

  In the collective exhaust cylinder portion 23, a first communication port 232 is formed at one position in the horizontal direction in the case 231, and a second communication port 233 is formed at the other position. The flue gas after passing through the first heat exchanger 32 is sent to the secondary heat exchanger for recovering latent heat outside the figure for the first water channel through the first communication port 232 and passes through the second heat exchanger 42. The combustion exhaust gas after being sent is sent to the secondary heat exchanger for recovering latent heat outside the figure for the second water channel through the second communication port 233.

  And the inside of the can 2 is divided into a horizontal direction one side part and the other side part by the lower burner partition member 5, the heat exchanger partition member 6 in the upper and lower intermediate positions, and the exhaust tube partition member 7. It is separated. The burner partition member 5, the heat exchanger partition member 6, and the exhaust tube partition member 7 are in a state (preferably in a close contact state) where at least their end portions adjacent in the vertical direction are in contact with each other. The partition members 5, 6, and 7 are continuously formed in the vertical direction to form an integral partition body.

  As shown in FIG. 2, the burner partition member 5 is attached and fixed in advance to the inner surface of the case 211 of the burner can body portion 21. That is, the burner 31 is fixed to the case 211 with the first burner 31 and the second burner 41 arranged so as to be separated from each other, and the upper end is a free end protruding upward. ing. The burner partition member 5 shown in the figure is formed in a plate shape having an internal space by folding back a plate material so that the upward end surface 51 of the upper end is a flat surface although it is narrow. The exhaust tube partition member 7 is also attached and fixed in advance to the inner surface of the case 231 of the collective exhaust tube portion 23, and the lower end edge serving as a free end is bent into an L-shaped lower end flange 71. . On the other hand, the heat exchanger partition member 6 is an independent part before assembly and is not attached to any part. For this reason, the heat exchange can body part 22 before the assembly work is in a state in which the first heat exchanger 32 is fixed to one side and the second heat exchanger 42 is fixed to the other side and integrated. A gap K1 is formed between the second heat exchangers 32 and 42 so as to open in the vertical direction and extend in the vertical direction with a width matching the width of the heat exchanger partition member 6.

  The heat exchanger partition member 6 will be described in detail. The heat exchanger partition member 6 is made of a metal thin plate so that the cross-sectional shape is a wedge shape such as a substantially V shape or a substantially U shape. It is a bent formation. That is, the diagonal wall 62 is bent obliquely downward from the lower end of the vertical wall 61 extending vertically, the diagonal wall 62 extends diagonally downward, and the flat downward wall 63 is horizontally bent from the lower end of the diagonal wall 62. The upper wall is bent obliquely upward from the tip thereof, the oblique wall portion 64 extends obliquely upward, and the upper end thereof is bent vertically upward to extend the vertical wall portion 65 paired with the vertical wall portion 62 upward. The upper end is bent horizontally and horizontally to form an upper end flange wall portion 66. The distance between the outer surfaces of the vertical wall portions 61 and 65 is set to be substantially the same as the horizontal width of the gap K1 or large by a small dimension, and is set to a downward wedge shape by the diagonal wall portions 62 and 64. . And the upper end of the vertical wall part 61 and the horizontal front-end | tip of the upper end flange wall part 66 are mutually separated, and it is set as the free end. Thereby, if the vertical wall portions 61 and 65 receive a horizontal inward external force, the lateral width can be elastically deformed, and if the upper end flange wall portion 66 receives a downward external force, it can be elastically bent downward. Has been. The upper end flange wall portion 66 constitutes a pressure receiving portion.

  The inside of the collective exhaust cylinder portion 23 is partitioned by the exhaust cylinder partitioning member 7 into a first exhaust cylinder portion 234 that faces the first communication port 232 and a second exhaust cylinder portion 235 that faces the second communication port 233. Separated. This also applies to the exhaust pipe partition member 11 of the second embodiment.

  And the can 2 is assembled as follows. First, the heat exchange can body portion 22 is attached to the burner can body portion 21 from above the burner can body portion 21 (see FIG. 2). This attachment may be performed using means such as screwing the flanges 212 and 222 of the cases 211 and 221 together. Next, the heat exchanger partition member 6 is pushed into the gap K <b> 1 from above the heat exchange can body portion 22 to fit inside, and the downward wall portion 63 is brought into contact with the upward end surface 51 of the burner partition member 5. Accordingly, the outer surface of the vertical wall portion 61 is in close contact with the end edge of the fin 321 of the first heat exchanger 32, and the outer surface of the vertical wall portion 65 is in close contact with the end edge of the fin 421 of the second heat exchanger 42. Become. In this abutted state, the collective exhaust tube portion 23 is attached to the heat exchange can body portion 22 from above. Similarly to the above, this attachment may be achieved by connecting both flanges of the cases 221 and 231 using means such as screws. With this attachment, the lower end flange 71 of the exhaust tube partition member 7 comes into contact with the front end side portion that is the free end side of the upper end flange wall portion 66 of the heat exchanger partition member 6. At this time, the lower end flange 71 of the exhaust tube partition member 7 is slightly pressed against the upper end flange wall portion 66 of the heat exchanger partition member 6, and either one or both are slightly elastically deformed. If set, the contact between the upward end surface 51 of the burner partition member 5 and the downward wall portion 63 of the heat exchanger partition member 6, and the upper end flange wall portion 66 of the heat exchanger partition member 6 and the exhaust tube partition member 7 can be brought into close contact with the lower end flange 71. That is, the sum of the vertical dimension of the burner partition member 5, the heat exchanger partition member 6 and the exhaust tube partition member 7 is a state where the burner can body portion 21, the heat exchange can body portion 22 and the collective exhaust tube portion 23 are combined. In this case, the distance between the inner and lower surfaces of the burner can body portion 21 and the inner upper surface of the collective exhaust tube portion 23 is set to be larger by a minute dimension. By doing so, even if an assembly dimension error occurs due to a manufacturing dimension error of each member, the dimension error is absorbed, and the burner partition member 5 and the heat exchanger partition member 6 and the heat exchange are absorbed. The vessel partition member 6 and the exhaust tube partition member 7 can be reliably brought into contact with each other.

  In the case of the first embodiment, the burner partition member 5, the heat exchanger partition member 6 and the exhaust tube partition member 7 divide the inside of the can body 2 into the first water channel components 31, 41, It is possible to completely separate the components 32 and 42 for the two water channels, and between the first heat exchanger 32 and the heat exchanger partition member 6 (vertical wall portion 61) and the second heat exchanger 42. And the heat exchanger partition member 6 (vertical wall portion 65) can be surely prevented from generating a gap and brought into close contact with each other. Thus, all of the combustion gas from the first burner 31 flows between the fins 321 of the first heat exchanger 32 and comes into contact with the fins 321 and the water pipes 322. For this reason, generation | occurrence | production of the conventional problem that a part of combustion gas passes wastefully without contacting the 1st heat exchanger 32 can be prevented, and the improvement of thermal efficiency can be aimed at. In addition, by separating the heat exchanger partition member 6 from the heat exchange can body 22 and making it an independent assembly part, its horizontal width (the outer surface spacing between the two vertical wall portions 61, 65) is the same as or slightly the same as the gap K1. Even if the width is set to a large width, the assembling work can be easily performed, and the heat exchangers 32 and 42 on both sides can be reliably brought into close contact with each other by using elastic deformation. As described above, both ease of assembly work and improvement in thermal efficiency can be satisfied.

  In the above embodiment, the upward end surface 51 of the burner partition member 5 is illustrated as being lower than or equivalent to the upper end edge of the burner can body portion 21, but the present invention is not limited thereto, and the upward end surface 51 is the burner can. When projecting upward from the body portion 21 and joining the heat exchange can body portion 22, the burner partition member 5 in the vertical direction is positioned so as to be positioned in the gap K1 between the heat exchangers 32 and 42. You may make it set a protrusion dimension. Even if it does in this way, since it is sufficient to insert the burner partition member in a protruding state into the gap K1 set to be wide, and after inserting the heat exchanger partition member 6 into the gap K1, the assembly work is easy. Both improvement in thermal efficiency can be obtained.

Second Embodiment
FIG. 3 shows a can body 8 of a heat source machine according to the second embodiment of the present invention. In the second embodiment, the overall basic configuration itself is the same except that the shape of the heat exchanger partition member 10 is different from the heat exchanger partition member 6 of the first embodiment and more specific. This is the same as in the first embodiment. For this reason, constituent elements that are basically the same as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and repeated detailed description is omitted.

  Similarly to the first embodiment, the can body 8 of the present embodiment is also configured as a single can and two water channel type, and is composed of a burner can body portion 81, a heat exchange can body portion 82, and a collective exhaust tube portion 83. Are combined so that they are stacked in this order. The blower can body portion 81 is provided with a blower fan (not shown) at a lower position or the like. The first burner 31 is preliminarily placed on one side in the horizontal direction and the second burner 41 is placed on the other side in the horizontal direction. Are installed in each. In the heat exchange can body portion 82, the first heat exchanger 32 is installed in advance in one side in the horizontal direction and the second heat exchanger 42 is installed in each position on the other side in the horizontal direction inside the cylindrical case 821. Is. In the collective exhaust cylinder 83, the combustion exhaust gas collected on one side in the horizontal direction in the case 831 is sent to the secondary heat exchanger for recovering latent heat outside the figure for the first water channel, and gathered on the other side in the horizontal direction. The combustion exhaust gas is sent to a secondary heat exchanger for recovering latent heat outside the figure for the second water channel.

  And the inside of the can body 8 is partitioned into a horizontal direction one side portion and the other side portion by a lower burner partition member 9, a heat exchanger partition member 10 at an upper and lower intermediate position, and an exhaust tube partition member 11. It is separated. The burner partition member 9, the heat exchanger partition member 10, and the exhaust tube partition member 11 are in a state (preferably in a close contact state) where at least the end portions adjacent to each other in the vertical direction are in contact with each other. The partition members 9, 10, and 11 are configured to continuously form an integral partition body in the vertical direction.

  The burner partition member 9 is attached and fixed to the burner can body portion 81 in advance. That is, in a state where both the burners 31 and 41 are arranged between the first burner 31 and the second burner 41 so as to be separated from each other, they are fixed to the inner and lower surfaces of the case 811 and the upper end 91 (FIG. 4). , See FIG. 5 and the like) protrudes further upward from the upper opening of the burner can body portion 81 to form a free end. The upper end portion 91 of the burner partitioning member 9 in the illustrated example is formed to be a vertical surface, and the protruding dimension is such that the upper end portion 91 enters the intermediate position of the heat exchanger can body 82 in a state assembled to the can body 8. Is set. Further, the exhaust tube partitioning member 11 is also attached and fixed in advance to the inner upper surface of the case 831 of the collective exhaust tube portion 83, and the lower end edge serving as a free end is bent into an L-shaped lower end flange 111. Yes. On the other hand, the heat exchanger partition member 10 is an independent component before assembly as in the first embodiment, and is not attached to any part. The heat exchange can body 82 is integrated with the first heat exchanger 32 fixed to one side in the horizontal direction and the second heat exchanger 42 fixed to the other side. A gap K2 opening in the vertical direction is formed between the two heat exchangers 32 and 42. The gap K2 has a width dimension set from the viewpoint of ease of assembling work when the lower half portion inserts the upper end portion 91 of the burner partition member 9, and the upper half portion is in contact with the heat exchanger partition member 10. The width and shape are set from the viewpoint of adhesion. That is, as shown also in FIG. 4 or FIG. 5, the fin end surface (the end surface of the fin 321 of the first heat exchanger 32 in the illustrated example) of at least one heat exchanger facing the gap K2 is cut obliquely and upward An end surface of the fin 421 of the second heat exchanger 42 which is the other heat exchanger is configured to constitute a vertical surface 423.

  And as the heat exchanger partition member 10, the diagonal wall part 101 which has the inclination corresponding to the said slope 323, and it turned up outward at the lower end of this diagonal wall part 101, and was made to bend outside laterally (leftward in drawing). The concave step 102, the vertical wall 103 corresponding to the vertical surface 423 by bending upward from the outer end of the concave step 102, and the inner side from the upper end of the vertical wall 103 (rightward in the drawing) The upper end flange wall portion 104 is made of a thin metal plate so as to have a substantially V-shaped cross-sectional shape as a whole. In addition, in a state where the concave step portion 102 is in contact with the upper end portion 91 of the burner partition member 9, the front end side of the upper end flange wall portion 104 slightly protrudes from the upper end opening edge of the heat exchange can body portion 82. It is set so as to be bent slightly obliquely upward (see FIG. 5). This upper end flange wall portion 104 constitutes a pressure receiving portion.

  Next, the procedure for assembling the can body 8 will be described. First, the heat exchanger can body portion 82 is attached to the burner can body portion 81 from above the burner can body portion 81 (see FIG. 4). The flanges 812 and 822 of the cases 811 and 821 may be attached using means such as screws. When the heat exchange can body 82 is covered, the upper end 91 of the burner partition member 9 is positioned so as to enter the gap K2 from below, but the lower half of the gap K2 is set to be quite wide. Therefore, the above-described alignment may not be exact, and even if the burner partition member 9 protrudes upward, the operation of covering the heat exchange can body portion 82 can be easily performed. Next, the heat exchanger partition member 10 is fitted from above the gap K <b> 2 of the heat exchange can body portion 82, and the heat exchanger partition member 10 is pressed so that the upper end portion 91 of the burner partition member 9 abuts the concave step portion 102. . As a result, the outer surface of the oblique wall portion 101 is pressed against the inclined surface 323 of the fin 321 of the first heat exchanger 32 in a state where the vertical wall portion 103 is in contact with the vertical surface 423 of the fin 421 of the second heat exchanger 42. Will be in close contact (close).

  Then, in this abutted state, the collective exhaust tube portion 83 (see FIG. 6) is attached to the heat exchange can body portion 82 from above. When the collective exhaust tube 83 is placed on the heat exchange can body 82, the lower end flange 111 of the exhaust tube partition member 11 comes into contact with the upper end flange wall 104 of the heat exchanger partition member 10. At the initial stage of contact, as shown in FIG. 7A, a minute gap S remains in the vertical direction between the heat exchange can body portion 82 and the collective exhaust tube portion 83, but the collective exhaust tube portion 83 is moved downward (heat exchange). When it is pushed down to the heat exchange can body 82 as shown in FIG. 7B, the upper end flange wall portion 104 is pushed by the lower end flange 111 and moves downward. The lower end flange 111 and the upper end flange wall 104 are brought into close contact with each other. In addition, the concave step portion 102 of the heat exchanger partition member 10 is pressed against and closely contacts the upper end portion 91 of the burner partition member 9 in response to the pressing force from the lower end flange 111. The first heat exchanger 32 is pressed and brought into close contact. In this state, the collective exhaust tube portion 83 and the heat exchange can body portion 82 are coupled together by means such as screwing the flanges 823 and 832 (see FIG. 3) with each other.

  Also in the case of the second embodiment described above, the burner partition member 9, the heat exchanger partition member 10 and the exhaust tube partition member 11 make the inside of the can 8 the first water channel components 31, 41 and the second water channel. The components 32 and 42 can be completely separated, and between the first heat exchanger 32 and the heat exchanger partition member 10 (oblique wall portion 101), and between the second heat exchanger 42 and the heat. It is possible to reliably prevent a gap from being generated between the exchanger partition member 10 (vertical wall portion 103) and bring them into close contact with each other. Thus, all of the combustion gas from the first burner 31 can be caused to flow between the fins 321 of the first heat exchanger 32 and be brought into contact with the fins 321 and the water pipes 322, and all of the combustion gas from the second burner 41 can be contacted. Is allowed to flow between the fins 421 of the second heat exchanger 42 to come into contact with the fins 421 and the water pipes 422. For this reason, it becomes possible to improve the thermal efficiency as in the first embodiment. Moreover, the heat exchanger partition member 10 is separated from the heat exchange can body portion 82 to be an independent assembly part, and inserted into the heat exchange can body portion 82 after being assembled to the burner can body portion 81 from the top. As a result, the assembly work of the partition is completed, so that the assembly work can be easily performed. In addition, the upper and lower burner partition members 9, the heat exchanger partition member 10 and the exhaust tube partition member 11 can be reliably brought into close contact with each other by utilizing elastic deformation as described above, while heat exchange on both sides is performed. The containers 32 and 42 can be surely brought into close contact with each other. As described above, both ease of assembly work and improvement in thermal efficiency can be satisfied.

<Other embodiments>
The present invention is not limited to the first and second embodiments, but includes various other embodiments. That is, an external force that causes elastic deformation is also positively applied to the slanted wall portion 101 of the heat exchanger partition member 10 of the second embodiment so as to more securely contact the fins of the heat exchanger. May be. For example, like the heat exchanger partition member 10 ′ shown in FIG. The tip of the inclined wall portion 101 ′ is extended and set so as to slightly protrude from the upper end opening edge of the heat exchange can body portion 82. Then, the collective exhaust cylinder portion 83 is placed on the heat exchange can body portion 82 from above to leave the minute gap S between the heat exchange can body portion 82 and the collective exhaust cylinder portion 83 in the vertical direction. In the state where the lower end flange 111 is in contact with the upper end flange wall portion 104, the inner flange pieces 833 extending inward from the lower end opening edge of the collective exhaust pipe 83 are inclined at both longitudinal ends of the heat exchanger partition member 10. It will be in contact with the tip of the wall 101 '. When the collective exhaust tube 83 is pushed down (to the side of the heat exchange can body 82) and brought into contact with the heat exchange can body 82 as shown in FIG. The portion 104 is pressed by the lower end flange 111 and elastically deformed downward and bent, and the oblique wall portion 101 ′ is also pressed downward from the tip and pressed against the fin of the heat exchanger 32. Thereby, the heat exchanger partition member 10 ′ is more reliably brought into close contact with the first heat exchanger 32 and the upper end portion 91 of the burner partition member 9 due to the elastic deformation of the oblique wall portion 101 ′.

It is a section explanatory view showing a 1st embodiment of the present invention. FIG. 2 is an explanatory cross-sectional view showing an exploded state of FIG. 1. It is a partially notched front explanatory view showing a second embodiment. It is a disassembled perspective view of a can. It is an expanded sectional explanatory view of the state before inserting a heat exchanger partition member with respect to a heat exchange can body part. FIG. 6 is a view corresponding to FIG. 5 illustrating a state before the assembly exhaust tube portion is assembled after the heat exchange partition member is inserted into the heat exchange can body portion. FIGS. 7A and 7B are enlarged cross-sectional explanatory views showing a procedure for assembling the exhaust tube partition member to the heat exchanger partition member, FIG. 7A shows a stage before the assembly exhaust tube portion is joined, and FIG. The stage which combined the part is shown. FIG. 8A is a view corresponding to FIG. 7 showing another embodiment, FIG. 8A shows a stage before joining the collective exhaust pipe part, and FIG. 8B shows a stage where the collective exhaust pipe part is joined. is there. It is sectional explanatory drawing which shows the can of the conventional heat source machine.

Explanation of symbols

2,8 can body 5,9 burner partition member 6,10,10 'heat exchanger partition member 7,11 exhaust tube partition member 21,81 burner can body portion 22,82 heat exchange can body portion 23,83 collective exhaust tube Part 31 1st burner 32 2nd heat exchanger 41 2nd burner 42 2nd heat exchanger 51 Upward end surface (upper end part)
66,104 Upper end flange wall (pressure receiving part)
91 Upper end portion 234 First exhaust cylinder portion 235 Second exhaust cylinder portions 321 and 421 Fin 323 Slope (end surface of fin)
423 vertical plane (fin end face)
K1, K2 gap

Claims (5)

A first burner and a second burner are arranged side by side in the lower part of a single can body, the first heat exchanger is located above the first burner, and the second heat exchanger is located above the second burner. In the heat source apparatus, wherein the first heat exchanger is heat exchange heated by the combustion heat of the first burner, and the second heat exchanger is heat exchange heated by the combustion heat of the second burner,
A burner partition member that partitions between the first burner and the second burner; and a heat exchanger partition member that partitions between the first heat exchanger and the second heat exchanger.
The heat exchanger partition member is inserted into the burner partition member disposed between the first burner and the second burner from above the gap between the first heat exchanger and the second heat exchanger. Therefore, the heat exchanger partition member is assembled in a state in which the heat exchanger partition member is in contact with the upper end portion of the burner partition member. The heat source machine according to claim 1,
The first heat exchanger and the second heat exchanger are configured to include endothermic fins,
The heat source partitioning member, wherein the heat exchanger partition member is set to have a lateral width so as to abut against end surfaces of both fins of the first heat exchanger and the second heat exchanger. The heat source machine according to claim 1 or 2,
The heat exchanger partition member is bent so as to form a wedge shape downward by an elastic plate material, and has a free end that opens upward so as to be elastically deformable in the width direction. . It is a heat source machine in any one of Claims 1-3,
The can body is configured with a collective exhaust tube portion attached to the upper portion thereof,
The collective exhaust pipe has a first exhaust pipe section through which the flue gas passing through the first heat exchanger flows and a second exhaust pipe section through which the flue gas passing through the second heat exchanger flows. An exhaust tube partitioning member that partitions
The collective exhaust pipe is a heat source apparatus assembled in a state in which the exhaust pipe partition member is in contact with the upper end portion of the heat exchanger partition member. The heat source machine according to claim 4,
The heat exchanger partition member is elastically deformed by receiving a downward pressing force from the exhaust tube partition member when the collective exhaust tube portion is assembled, and thereby elastically deforming the contact portion with the burner partition member. A heat source device having a pressure receiving portion for applying a restoring force.

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